sftpgo/internal/sftpd/sftpd_test.go

// Copyright (C) 2019-2022  Nicola Murino
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, version 3.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

package sftpd_test

import (
	"bufio"
	"bytes"
	"context"
	"crypto/rand"
	"crypto/sha256"
	"crypto/sha512"
	"encoding/base64"
	"encoding/binary"
	"encoding/json"
	"errors"
	"fmt"
	"hash"
	"io"
	"io/fs"
	"math"
	"net"
	"net/http"
	"os"
	"os/exec"
	"path"
	"path/filepath"
	"runtime"
	"strconv"
	"strings"
	"sync"
	"sync/atomic"
	"testing"
	"time"

	_ "github.com/go-sql-driver/mysql"
	_ "github.com/lib/pq"
	_ "github.com/mattn/go-sqlite3"
	"github.com/pquerna/otp"
	"github.com/pquerna/otp/totp"

	"github.com/pkg/sftp"
	"github.com/rs/zerolog"
	"github.com/sftpgo/sdk"
	sdkkms "github.com/sftpgo/sdk/kms"
	"github.com/stretchr/testify/assert"
	"golang.org/x/crypto/ssh"

	"github.com/drakkan/sftpgo/v2/internal/common"
	"github.com/drakkan/sftpgo/v2/internal/config"
	"github.com/drakkan/sftpgo/v2/internal/dataprovider"
	"github.com/drakkan/sftpgo/v2/internal/httpdtest"
	"github.com/drakkan/sftpgo/v2/internal/kms"
	"github.com/drakkan/sftpgo/v2/internal/logger"
	"github.com/drakkan/sftpgo/v2/internal/mfa"
	"github.com/drakkan/sftpgo/v2/internal/sftpd"
	"github.com/drakkan/sftpgo/v2/internal/util"
	"github.com/drakkan/sftpgo/v2/internal/vfs"
)

const (
	logSender           = "sftpdTesting"
	sftpServerAddr      = "127.0.0.1:2022"
	sftpSrvAddr2222     = "127.0.0.1:2222"
	defaultUsername     = "test_user_sftp"
	defaultPassword     = "test_password"
	defaultSFTPUsername = "test_sftpfs_user"
	testPubKey          = "ssh-rsa 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 nicola@p1"
	testPubKey1         = "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABgQCd60+/j+y8f0tLftihWV1YN9RSahMI9btQMDIMqts/jeNbD8jgoogM3nhF7KxfcaMKURuD47KC4Ey6iAJUJ0sWkSNNxOcIYuvA+5MlspfZDsa8Ag76Fe1vyz72WeHMHMeh/hwFo2TeIeIXg480T1VI6mzfDrVp2GzUx0SS0dMsQBjftXkuVR8YOiOwMCAH2a//M1OrvV7d/NBk6kBN0WnuIBb2jKm15PAA7+jQQG7tzwk2HedNH3jeL5GH31xkSRwlBczRK0xsCQXehAlx6cT/e/s44iJcJTHfpPKoSk6UAhPJYe7Z1QnuoawY9P9jQaxpyeImBZxxUEowhjpj2avBxKdRGBVK8R7EL8tSOeLbhdyWe5Mwc1+foEbq9Zz5j5Kd+hn3Wm1UnsGCrXUUUoZp1jnlNl0NakCto+5KmqnT9cHxaY+ix2RLUWAZyVFlRq71OYux1UHJnEJPiEI1/tr4jFBSL46qhQZv/TfpkfVW8FLz0lErfqu0gQEZnNHr3Fc= nicola@p1"
	testPrivateKey      = `-----BEGIN OPENSSH PRIVATE KEY-----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-----END OPENSSH PRIVATE KEY-----`
	// password protected private key
	testPrivateKeyPwd = `-----BEGIN OPENSSH PRIVATE KEY-----
b3BlbnNzaC1rZXktdjEAAAAACmFlczI1Ni1jdHIAAAAGYmNyeXB0AAAAGAAAABAvfwQQcs
+PyMsCLTNFcKiQAAAAEAAAAAEAAAAzAAAAC3NzaC1lZDI1NTE5AAAAILqltfCL7IPuIQ2q
+8w23flfgskjIlKViEwMfjJR4mrbAAAAkHp5xgG8J1XW90M/fT59ZUQht8sZzzP17rEKlX
waYKvLzDxkPK6LFIYs55W1EX1eVt/2Maq+zQ7k2SOUmhPNknsUOlPV2gytX3uIYvXF7u2F
FTBIJuzZ+UQ14wFbraunliE9yye9DajVG1kz2cz2wVgXUbee+gp5NyFVvln+TcTxXwMsWD
qwlk5iw/jQekxThg==
-----END OPENSSH PRIVATE KEY-----
`
	testPubKeyPwd = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILqltfCL7IPuIQ2q+8w23flfgskjIlKViEwMfjJR4mrb"
	privateKeyPwd = "password"
	// test CA user key.
	// % ssh-keygen -f ca_user_key
	testCAUserKey = "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABgQDF5fcwZHiyixmnE6IlOZJpZhWXoh62gN+yadAA0GJ509SAEaZVLPDP8S5RsE8mUikR3wxynVshxHeqMhrkS+RlNbhSlOXDdNg94yTrq/xF8Z/PgKRInvef74k5i7bAIytza7jERzFJ/ujTEy3537T5k5EYQJ15ZQGuvzynSdv+6o99SjI4jFplyQOZ2QcYbEAmhHm5GgQlIiEFG/RlDtLksOulKZxOY3qPzP0AyQxtZJXn/5vG40aW9LTbwxCJqWlgrkFXMqAAVCbuU5YspwhiXmKt1PsldiXw23oloa4caCKN1jzbFiGuZNXEU2Ebx7JIvjQCPaUYwLjEbkRDxDqN/vmwZqBuKYiuG9Eafx+nFSQkr7QYb5b+mT+/1IFHnmeRGn38731kBqtH7tpzC/t+soRX9p2HtJM+9MYhblO2OqTSPGTlxihWUkyiRBekpAhaiHld16TsG+A3bOJHrojGcX+5g6oGarKGLAMcykL1X+rZqT993Mo6d2Z7q43MOXE= root@p1"
	// this is testPubKey signed using testCAUserKey.
	// % ssh-keygen -s ca_user_key -I test_user_sftp -n test_user_sftp -V always:forever -O source-address=127.0.0.1 -z 1 /tmp/test.pub
	testCertValid = "[email protected] 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 nicola@p1"
	// this is testPubKey signed using a CA user key different from testCAUserKey
	testCertUntrustedCA = "[email protected] 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 nicola@p1"
	// this is testPubKey signed as host certificate.
	// % ssh-keygen -s ca_user_key -I test_user_sftp -h -n test_user_sftp -V always:forever -z 2 /tmp/test.pub
	testHostCert = "[email protected] 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 nicola@p1"
	// this is testPubKey signed using testCAUserKey but with source address 172.16.34.45.
	// % ssh-keygen -s ca_user_key -I test_user_sftp -n test_user_sftp -V always:forever -O source-address=172.16.34.45 -z 3 /tmp/test.pub
	testCertOtherSourceAddress = "[email protected] 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 nicola@p1"
	// this is testPubKey signed using testCAUserKey but expired.
	// % ssh-keygen -s ca_user_key -I test_user_sftp -n test_user_sftp -V 20100101123000:20110101123000 -z 4 /tmp/test.pub
	testCertExpired = "[email protected] 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 nicola@p1"
	// this is testPubKey signed without a principal
	// ssh-keygen -s ca_user_key -I test_user_sftp -V always:forever -O source-address=127.0.0.1 -z 1 /tmp/test.pub
	testCertNoPrincipals = "[email protected] 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 nicola@p1"
	osWindows            = "windows"
	testFileName         = "test_file_sftp.dat"
	testDLFileName       = "test_download_sftp.dat"
)

var (
	configDir        = filepath.Join(".", "..", "..")
	allPerms         = []string{dataprovider.PermAny}
	homeBasePath     string
	scpPath          string
	scpForce         bool
	gitPath          string
	sshPath          string
	hookCmdPath      string
	pubKeyPath       string
	privateKeyPath   string
	trustedCAUserKey string
	revokeUserCerts  string
	gitWrapPath      string
	extAuthPath      string
	keyIntAuthPath   string
	preLoginPath     string
	postConnectPath  string
	preDownloadPath  string
	preUploadPath    string
	checkPwdPath     string
	logFilePath      string
	hostKeyFPs       []string
)

func TestMain(m *testing.M) {
	logFilePath = filepath.Join(configDir, "sftpgo_sftpd_test.log")
	loginBannerFileName := "login_banner"
	loginBannerFile := filepath.Join(configDir, loginBannerFileName)
	logger.InitLogger(logFilePath, 5, 1, 28, false, false, zerolog.DebugLevel)
	err := os.WriteFile(loginBannerFile, []byte("simple login banner\n"), os.ModePerm)
	if err != nil {
		logger.ErrorToConsole("error creating login banner: %v", err)
	}
	os.Setenv("SFTPGO_COMMON__UPLOAD_MODE", "2")
	os.Setenv("SFTPGO_DATA_PROVIDER__CREATE_DEFAULT_ADMIN", "1")
	os.Setenv("SFTPGO_DEFAULT_ADMIN_USERNAME", "admin")
	os.Setenv("SFTPGO_DEFAULT_ADMIN_PASSWORD", "password")
	err = config.LoadConfig(configDir, "")
	if err != nil {
		logger.ErrorToConsole("error loading configuration: %v", err)
		os.Exit(1)
	}
	providerConf := config.GetProviderConf()
	logger.InfoToConsole("Starting SFTPD tests, provider: %v", providerConf.Driver)

	commonConf := config.GetCommonConfig()
	homeBasePath = os.TempDir()
	checkSystemCommands()
	var scriptArgs string
	if runtime.GOOS == osWindows {
		scriptArgs = "%*"
	} else {
		commonConf.Actions.ExecuteOn = []string{"download", "upload", "rename", "delete", "ssh_cmd",
			"pre-download", "pre-upload"}
		commonConf.Actions.Hook = hookCmdPath
		scriptArgs = "$@"
	}

	err = common.Initialize(commonConf, 0)
	if err != nil {
		logger.WarnToConsole("error initializing common: %v", err)
		os.Exit(1)
	}

	err = dataprovider.Initialize(providerConf, configDir, true)
	if err != nil {
		logger.ErrorToConsole("error initializing data provider: %v", err)
		os.Exit(1)
	}

	httpConfig := config.GetHTTPConfig()
	httpConfig.Initialize(configDir) //nolint:errcheck
	kmsConfig := config.GetKMSConfig()
	err = kmsConfig.Initialize()
	if err != nil {
		logger.ErrorToConsole("error initializing kms: %v", err)
		os.Exit(1)
	}
	mfaConfig := config.GetMFAConfig()
	err = mfaConfig.Initialize()
	if err != nil {
		logger.ErrorToConsole("error initializing MFA: %v", err)
		os.Exit(1)
	}

	sftpdConf := config.GetSFTPDConfig()
	httpdConf := config.GetHTTPDConfig()
	sftpdConf.Bindings = []sftpd.Binding{
		{
			Port:             2022,
			ApplyProxyConfig: true,
		},
	}
	sftpdConf.KexAlgorithms = []string{"[email protected]", "ecdh-sha2-nistp256",
		"ecdh-sha2-nistp384"}
	sftpdConf.Ciphers = []string{"[email protected]", "[email protected]",
		"aes256-ctr"}
	sftpdConf.MACs = []string{"[email protected]", "hmac-sha2-256"}
	sftpdConf.LoginBannerFile = loginBannerFileName
	// we need to test all supported ssh commands
	sftpdConf.EnabledSSHCommands = []string{"*"}

	keyIntAuthPath = filepath.Join(homeBasePath, "keyintauth.sh")
	err = os.WriteFile(keyIntAuthPath, getKeyboardInteractiveScriptContent([]string{"1", "2"}, 0, false, 1), os.ModePerm)
	if err != nil {
		logger.ErrorToConsole("error writing keyboard interactive script: %v", err)
		os.Exit(1)
	}
	sftpdConf.KeyboardInteractiveAuthentication = true
	sftpdConf.KeyboardInteractiveHook = keyIntAuthPath

	createInitialFiles(scriptArgs)
	sftpdConf.TrustedUserCAKeys = append(sftpdConf.TrustedUserCAKeys, trustedCAUserKey)
	sftpdConf.RevokedUserCertsFile = revokeUserCerts

	go func() {
		logger.Debug(logSender, "", "initializing SFTP server with config %+v", sftpdConf)
		if err := sftpdConf.Initialize(configDir); err != nil {
			logger.ErrorToConsole("could not start SFTP server: %v", err)
			os.Exit(1)
		}
	}()

	go func() {
		if err := httpdConf.Initialize(configDir, 0); err != nil {
			logger.ErrorToConsole("could not start HTTP server: %v", err)
			os.Exit(1)
		}
	}()

	waitTCPListening(sftpdConf.Bindings[0].GetAddress())
	waitTCPListening(httpdConf.Bindings[0].GetAddress())

	sftpdConf.Bindings = []sftpd.Binding{
		{
			Port:             2222,
			ApplyProxyConfig: true,
		},
	}
	sftpdConf.PasswordAuthentication = false
	common.Config.ProxyProtocol = 1
	go func() {
		logger.Debug(logSender, "", "initializing SFTP server with config %+v and proxy protocol %v",
			sftpdConf, common.Config.ProxyProtocol)
		if err := sftpdConf.Initialize(configDir); err != nil {
			logger.ErrorToConsole("could not start SFTP server with proxy protocol 1: %v", err)
			os.Exit(1)
		}
	}()

	waitTCPListening(sftpdConf.Bindings[0].GetAddress())

	prefixedConf := sftpdConf
	prefixedConf.Bindings = []sftpd.Binding{
		{
			Port:             2226,
			ApplyProxyConfig: false,
		},
	}
	prefixedConf.PasswordAuthentication = true
	prefixedConf.FolderPrefix = "/prefix/files"
	go func() {
		logger.Debug(logSender, "", "initializing SFTP server with config %+v and proxy protocol %v",
			prefixedConf, common.Config.ProxyProtocol)
		if err := prefixedConf.Initialize(configDir); err != nil {
			logger.ErrorToConsole("could not start SFTP server with proxy protocol 2: %v", err)
			os.Exit(1)
		}
	}()

	waitTCPListening(prefixedConf.Bindings[0].GetAddress())

	sftpdConf.Bindings = []sftpd.Binding{
		{
			Port:             2224,
			ApplyProxyConfig: true,
		},
	}
	sftpdConf.PasswordAuthentication = true
	common.Config.ProxyProtocol = 2
	go func() {
		logger.Debug(logSender, "", "initializing SFTP server with config %+v and proxy protocol %v",
			sftpdConf, common.Config.ProxyProtocol)
		if err := sftpdConf.Initialize(configDir); err != nil {
			logger.ErrorToConsole("could not start SFTP server with proxy protocol 2: %v", err)
			os.Exit(1)
		}
	}()

	waitTCPListening(sftpdConf.Bindings[0].GetAddress())
	getHostKeysFingerprints(sftpdConf.HostKeys)
	startHTTPFs()

	exitCode := m.Run()
	os.Remove(logFilePath)
	os.Remove(loginBannerFile)
	os.Remove(pubKeyPath)
	os.Remove(privateKeyPath)
	os.Remove(trustedCAUserKey)
	os.Remove(revokeUserCerts)
	os.Remove(gitWrapPath)
	os.Remove(extAuthPath)
	os.Remove(preLoginPath)
	os.Remove(postConnectPath)
	os.Remove(preDownloadPath)
	os.Remove(preUploadPath)
	os.Remove(keyIntAuthPath)
	os.Remove(checkPwdPath)
	os.Exit(exitCode)
}

func TestInitialization(t *testing.T) {
	err := config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	sftpdConf := config.GetSFTPDConfig()
	sftpdConf.Bindings = []sftpd.Binding{
		{
			Port:             2022,
			ApplyProxyConfig: true,
		},
		{
			Port: 0,
		},
	}
	sftpdConf.LoginBannerFile = "invalid_file"
	sftpdConf.EnabledSSHCommands = append(sftpdConf.EnabledSSHCommands, "ls")
	err = sftpdConf.Initialize(configDir)
	assert.Error(t, err)
	sftpdConf.KeyboardInteractiveAuthentication = true
	sftpdConf.KeyboardInteractiveHook = "invalid_file"
	err = sftpdConf.Initialize(configDir)
	assert.Error(t, err)
	sftpdConf.KeyboardInteractiveHook = filepath.Join(homeBasePath, "invalid_file")
	err = sftpdConf.Initialize(configDir)
	assert.Error(t, err)
	sftpdConf.Bindings = []sftpd.Binding{
		{
			Port:             4444,
			ApplyProxyConfig: true,
		},
	}
	common.Config.ProxyProtocol = 1
	common.Config.ProxyAllowed = []string{"1270.0.0.1"}
	assert.True(t, sftpdConf.Bindings[0].HasProxy())
	err = sftpdConf.Initialize(configDir)
	assert.Error(t, err)
	sftpdConf.HostKeys = []string{"missing key"}
	err = sftpdConf.Initialize(configDir)
	assert.Error(t, err)
	sftpdConf.HostKeys = nil
	sftpdConf.TrustedUserCAKeys = []string{"missing ca key"}
	err = sftpdConf.Initialize(configDir)
	assert.Error(t, err)
	sftpdConf.Bindings = nil
	err = sftpdConf.Initialize(configDir)
	assert.EqualError(t, err, common.ErrNoBinding.Error())
	sftpdConf = config.GetSFTPDConfig()
	sftpdConf.Ciphers = []string{"not a cipher"}
	err = sftpdConf.Initialize(configDir)
	if assert.Error(t, err) {
		assert.Contains(t, err.Error(), "unsupported cipher")
	}
	sftpdConf.Ciphers = nil
	sftpdConf.MACs = []string{"not a MAC"}
	err = sftpdConf.Initialize(configDir)
	if assert.Error(t, err) {
		assert.Contains(t, err.Error(), "unsupported MAC algorithm")
	}
	sftpdConf.KexAlgorithms = []string{"not a KEX"}
	err = sftpdConf.Initialize(configDir)
	if assert.Error(t, err) {
		assert.Contains(t, err.Error(), "unsupported key-exchange algorithm")
	}
	sftpdConf.HostKeyAlgorithms = []string{"not a host key algo"}
	err = sftpdConf.Initialize(configDir)
	if assert.Error(t, err) {
		assert.Contains(t, err.Error(), "unsupported host key algorithm")
	}
	sftpdConf.HostKeyAlgorithms = nil
	sftpdConf.HostCertificates = []string{"missing file"}
	err = sftpdConf.Initialize(configDir)
	if assert.Error(t, err) {
		assert.Contains(t, err.Error(), "unable to load host certificate")
	}
	sftpdConf.HostCertificates = []string{"."}
	err = sftpdConf.Initialize(configDir)
	assert.Error(t, err)
	hostCertPath := filepath.Join(os.TempDir(), "host_cert.pub")
	err = os.WriteFile(hostCertPath, []byte(testCertValid), 0600)
	assert.NoError(t, err)
	sftpdConf.HostKeys = []string{privateKeyPath}
	sftpdConf.HostCertificates = []string{hostCertPath}
	err = sftpdConf.Initialize(configDir)
	if assert.Error(t, err) {
		assert.Contains(t, err.Error(), "is not an host certificate")
	}
	err = os.WriteFile(hostCertPath, []byte(testPubKey), 0600)
	assert.NoError(t, err)
	err = sftpdConf.Initialize(configDir)
	if assert.Error(t, err) {
		assert.Contains(t, err.Error(), "is not an SSH certificate")
	}
	err = os.WriteFile(hostCertPath, []byte("abc"), 0600)
	assert.NoError(t, err)
	err = sftpdConf.Initialize(configDir)
	if assert.Error(t, err) {
		assert.Contains(t, err.Error(), "unable to parse host certificate")
	}
	err = os.WriteFile(hostCertPath, []byte(testHostCert), 0600)
	assert.NoError(t, err)
	err = sftpdConf.Initialize(configDir)
	assert.Error(t, err)

	err = os.Remove(hostCertPath)
	assert.NoError(t, err)
	sftpdConf.HostKeys = nil
	sftpdConf.HostCertificates = nil
	sftpdConf.RevokedUserCertsFile = "."
	err = sftpdConf.Initialize(configDir)
	assert.Error(t, err)
	sftpdConf.RevokedUserCertsFile = "a missing file"
	err = sftpdConf.Initialize(configDir)
	assert.ErrorIs(t, err, os.ErrNotExist)

	err = createTestFile(revokeUserCerts, 10*1024*1024)
	assert.NoError(t, err)
	sftpdConf.RevokedUserCertsFile = revokeUserCerts
	err = sftpdConf.Initialize(configDir)
	assert.Error(t, err)

	err = os.WriteFile(revokeUserCerts, []byte(`[]`), 0644)
	assert.NoError(t, err)
	err = sftpdConf.Initialize(configDir)
	assert.Error(t, err)
}

func TestBasicSFTPHandling(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	u.QuotaSize = 6553600
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFileSize := int64(65535)
		expectedQuotaSize := user.UsedQuotaSize + testFileSize
		expectedQuotaFiles := user.UsedQuotaFiles + 1
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join("/missing_dir", testFileName), testFileSize, client)
		assert.Error(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, int64(0), user.FirstUpload)
		assert.Equal(t, int64(0), user.FirstDownload)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Greater(t, user.FirstUpload, int64(0))
		assert.Equal(t, int64(0), user.FirstDownload)
		localDownloadPath := filepath.Join(homeBasePath, testDLFileName)
		err = sftpDownloadFile(testFileName, localDownloadPath, testFileSize, client)
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, expectedQuotaFiles, user.UsedQuotaFiles)
		assert.Equal(t, expectedQuotaSize, user.UsedQuotaSize)
		err = client.Remove(testFileName)
		assert.NoError(t, err)
		_, err = client.Lstat(testFileName)
		assert.Error(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, expectedQuotaFiles-1, user.UsedQuotaFiles)
		assert.Equal(t, expectedQuotaSize-testFileSize, user.UsedQuotaSize)
		assert.Greater(t, user.FirstUpload, int64(0))
		assert.Greater(t, user.FirstDownload, int64(0))
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
		err = os.Remove(localDownloadPath)
		assert.NoError(t, err)
	}
	u.Username = "missing user"
	_, _, err = getSftpClient(u, false)
	assert.Error(t, err)
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	status := sftpd.GetStatus()
	assert.True(t, status.IsActive)
	sshCommands := status.GetSSHCommandsAsString()
	assert.NotEmpty(t, sshCommands)
	sshAuths := status.GetSupportedAuthsAsString()
	assert.NotEmpty(t, sshAuths)
}

func TestBasicSFTPFsHandling(t *testing.T) {
	usePubKey := true
	baseUser, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	u := getTestSFTPUser(usePubKey)
	u.QuotaSize = 6553600
	u.FsConfig.SFTPConfig.DisableCouncurrentReads = true
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = checkBasicSFTP(client)
		assert.NoError(t, err)
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFileSize := int64(65535)
		testLinkName := testFileName + ".link"
		testLinkToLinkName := testLinkName + ".link"
		expectedQuotaSize := testFileSize
		expectedQuotaFiles := 1
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		localDownloadPath := filepath.Join(homeBasePath, testDLFileName)
		err = sftpDownloadFile(testFileName, localDownloadPath, testFileSize, client)
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, expectedQuotaFiles, user.UsedQuotaFiles)
		assert.Equal(t, expectedQuotaSize, user.UsedQuotaSize)
		err = client.Symlink(testFileName, testLinkName)
		assert.NoError(t, err)
		info, err := client.Lstat(testLinkName)
		if assert.NoError(t, err) {
			assert.True(t, info.Mode()&os.ModeSymlink != 0)
		}
		info, err = client.Stat(testLinkName)
		if assert.NoError(t, err) {
			assert.True(t, info.Mode()&os.ModeSymlink == 0)
		}
		val, err := client.ReadLink(testLinkName)
		if assert.NoError(t, err) {
			assert.Equal(t, path.Join("/", testFileName), val)
		}
		linkDir := "linkDir"
		err = client.Mkdir(linkDir)
		assert.NoError(t, err)
		linkToLinkPath := path.Join(linkDir, testLinkToLinkName)
		err = client.Symlink(testLinkName, linkToLinkPath)
		assert.NoError(t, err)
		info, err = client.Lstat(linkToLinkPath)
		if assert.NoError(t, err) {
			assert.True(t, info.Mode()&os.ModeSymlink != 0)
		}
		info, err = client.Stat(linkToLinkPath)
		if assert.NoError(t, err) {
			assert.True(t, info.Mode()&os.ModeSymlink == 0)
		}
		val, err = client.ReadLink(linkToLinkPath)
		if assert.NoError(t, err) {
			assert.Equal(t, path.Join("/", testLinkName), val)
		}
		err = client.Remove(linkToLinkPath)
		assert.NoError(t, err)
		err = client.RemoveDirectory(linkDir)
		assert.NoError(t, err)
		err = client.Remove(testFileName)
		assert.NoError(t, err)
		_, err = client.Lstat(testFileName)
		assert.Error(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 0, user.UsedQuotaFiles)
		assert.Equal(t, int64(0), user.UsedQuotaSize)
		// now overwrite the symlink
		err = sftpUploadFile(testFilePath, testLinkName, testFileSize, client)
		assert.NoError(t, err)
		contents, err := client.ReadDir("/")
		if assert.NoError(t, err) {
			assert.Len(t, contents, 1)
			assert.Equal(t, testFileSize, contents[0].Size())
			assert.Equal(t, testLinkName, contents[0].Name())
			assert.False(t, contents[0].IsDir())
			assert.True(t, contents[0].Mode().IsRegular())
		}
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, expectedQuotaFiles, user.UsedQuotaFiles)
		assert.Equal(t, expectedQuotaSize, user.UsedQuotaSize)

		stat, err := client.StatVFS("/")
		assert.NoError(t, err)
		assert.Equal(t, uint64(u.QuotaSize/4096), stat.Blocks)
		assert.Equal(t, uint64((u.QuotaSize-testFileSize)/4096), stat.Bfree)
		assert.Equal(t, uint64(1), stat.Files-stat.Ffree)

		err = os.Remove(testFilePath)
		assert.NoError(t, err)
		err = os.Remove(localDownloadPath)
		assert.NoError(t, err)
	}

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(baseUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(baseUser.GetHomeDir())
	assert.NoError(t, err)
}

func TestSFTPFsPasswordProtectedPrivateKey(t *testing.T) {
	usePubKey := false
	u := getTestUser(true)
	u.PublicKeys = []string{testPubKeyPwd}
	baseUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	u = getTestSFTPUser(usePubKey)
	u.FsConfig.SFTPConfig.PrivateKey = kms.NewPlainSecret(testPrivateKeyPwd)
	u.FsConfig.SFTPConfig.KeyPassphrase = kms.NewPlainSecret(privateKeyPwd)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = checkBasicSFTP(client)
		assert.NoError(t, err)
	}
	// update the user, the key must be preserved
	_, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = checkBasicSFTP(client)
		assert.NoError(t, err)
	}

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(baseUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(baseUser.GetHomeDir())
	assert.NoError(t, err)
}

func TestSFTPFsEscapeHomeDir(t *testing.T) {
	usePubKey := true
	baseUser, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	u := getTestSFTPUser(usePubKey)
	sftpPrefix := "/prefix"
	u.FsConfig.SFTPConfig.Prefix = sftpPrefix
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = checkBasicSFTP(client)
		assert.NoError(t, err)
		dirName := "dir"
		linkName := "link"
		err := client.Mkdir(dirName)
		assert.NoError(t, err)
		err = os.Symlink(baseUser.GetHomeDir(), filepath.Join(baseUser.GetHomeDir(), sftpPrefix, dirName, linkName))
		assert.NoError(t, err)
		err = os.Symlink(filepath.Join(baseUser.GetHomeDir(), sftpPrefix, dirName, linkName),
			filepath.Join(baseUser.GetHomeDir(), sftpPrefix, linkName))
		assert.NoError(t, err)
		// linkName points to a link inside the home dir and this link points to a dir outside the home dir
		_, err = client.ReadLink(linkName)
		assert.ErrorIs(t, err, os.ErrPermission)
		_, err = client.ReadDir(linkName)
		assert.ErrorIs(t, err, os.ErrPermission)
		_, err = client.ReadDir(path.Join(dirName, linkName))
		assert.ErrorIs(t, err, os.ErrPermission)
		_, err = client.ReadDir("/")
		assert.NoError(t, err)
	}

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(baseUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(baseUser.GetHomeDir())
	assert.NoError(t, err)
}

func TestGroupSettingsOverride(t *testing.T) {
	usePubKey := true
	g := getTestGroup()
	g.UserSettings.Filters.StartDirectory = "/%username%"
	group, _, err := httpdtest.AddGroup(g, http.StatusCreated)
	assert.NoError(t, err)
	u := getTestUser(usePubKey)
	u.Groups = []sdk.GroupMapping{
		{
			Name: group.Name,
			Type: sdk.GroupTypePrimary,
		},
	}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()

		currentDir, err := client.Getwd()
		assert.NoError(t, err)
		assert.Equal(t, "/"+user.Username, currentDir)
	}

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	_, err = httpdtest.RemoveGroup(group, http.StatusOK)
	assert.NoError(t, err)
}

func TestStartDirectory(t *testing.T) {
	usePubKey := false
	startDir := "/st@ rt/dir"
	u := getTestUser(usePubKey)
	u.Filters.StartDirectory = startDir
	localUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	u = getTestSFTPUser(usePubKey)
	u.Filters.StartDirectory = startDir
	sftpUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	for _, user := range []dataprovider.User{localUser, sftpUser} {
		conn, client, err := getSftpClient(user, usePubKey)
		if assert.NoError(t, err) {
			defer conn.Close()
			defer client.Close()

			currentDir, err := client.Getwd()
			assert.NoError(t, err)
			assert.Equal(t, startDir, currentDir)

			entries, err := client.ReadDir(".")
			assert.NoError(t, err)
			assert.Len(t, entries, 0)

			testFilePath := filepath.Join(homeBasePath, testFileName)
			testFileSize := int64(65535)
			err = createTestFile(testFilePath, testFileSize)
			assert.NoError(t, err)
			err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
			assert.NoError(t, err)
			localDownloadPath := filepath.Join(homeBasePath, testDLFileName)
			err = sftpDownloadFile(testFileName, localDownloadPath, testFileSize, client)
			assert.NoError(t, err)
			_, err = client.Stat(testFileName)
			assert.NoError(t, err)
			err = client.Rename(testFileName, testFileName+"_rename")
			assert.NoError(t, err)

			entries, err = client.ReadDir(".")
			assert.NoError(t, err)
			assert.Len(t, entries, 1)

			currentDir, err = client.RealPath("..")
			assert.NoError(t, err)
			assert.Equal(t, path.Dir(startDir), currentDir)

			currentDir, err = client.RealPath("../..")
			assert.NoError(t, err)
			assert.Equal(t, "/", currentDir)

			currentDir, err = client.RealPath("../../..")
			assert.NoError(t, err)
			assert.Equal(t, "/", currentDir)

			err = client.Remove(testFileName + "_rename")
			assert.NoError(t, err)

			err = os.Remove(testFilePath)
			assert.NoError(t, err)
			err = os.Remove(localDownloadPath)
			assert.NoError(t, err)
		}
	}
	_, err = httpdtest.RemoveUser(sftpUser, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(localUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
}

func TestFolderPrefix(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	u.QuotaFiles = 1000
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	conn, client, err := getSftpClientWithAddr(user, usePubKey, "127.0.0.1:2226")
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = checkBasicSFTP(client)
		assert.NoError(t, err)
		_, err = client.Stat("path")
		assert.ErrorIs(t, err, os.ErrPermission)
		_, err = client.Stat("/prefix/path")
		assert.ErrorIs(t, err, os.ErrPermission)
		_, err = client.Stat("/prefix/files1")
		assert.ErrorIs(t, err, os.ErrPermission)
		contents, err := client.ReadDir("/")
		if assert.NoError(t, err) {
			if assert.Len(t, contents, 1) {
				assert.Equal(t, "prefix", contents[0].Name())
			}
		}
		contents, err = client.ReadDir("/prefix")
		if assert.NoError(t, err) {
			if assert.Len(t, contents, 1) {
				assert.Equal(t, "files", contents[0].Name())
			}
		}
		_, err = client.OpenFile(testFileName, os.O_WRONLY|os.O_CREATE)
		assert.ErrorIs(t, err, os.ErrPermission)
		_, err = client.OpenFile(testFileName, os.O_RDONLY)
		assert.ErrorIs(t, err, os.ErrPermission)

		f, err := client.OpenFile(path.Join("prefix", "files", testFileName), os.O_WRONLY|os.O_CREATE)
		assert.NoError(t, err)
		_, err = f.Write([]byte("test"))
		assert.NoError(t, err)
		err = f.Close()
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestLoginNonExistentUser(t *testing.T) {
	usePubKey := true
	user := getTestUser(usePubKey)
	_, _, err := getSftpClient(user, usePubKey)
	assert.Error(t, err)
}

func TestRateLimiter(t *testing.T) {
	oldConfig := config.GetCommonConfig()

	cfg := config.GetCommonConfig()
	cfg.RateLimitersConfig = []common.RateLimiterConfig{
		{
			Average:   1,
			Period:    1000,
			Burst:     1,
			Type:      1,
			Protocols: []string{common.ProtocolSSH},
		},
	}

	err := common.Initialize(cfg, 0)
	assert.NoError(t, err)

	usePubKey := false
	user, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = checkBasicSFTP(client)
		assert.NoError(t, err)
	}
	_, _, err = getSftpClient(user, usePubKey)
	assert.Error(t, err)

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)

	err = common.Initialize(oldConfig, 0)
	assert.NoError(t, err)
}

func TestDefender(t *testing.T) {
	oldConfig := config.GetCommonConfig()

	cfg := config.GetCommonConfig()
	cfg.DefenderConfig.Enabled = true
	cfg.DefenderConfig.Threshold = 3
	cfg.DefenderConfig.ScoreLimitExceeded = 2

	err := common.Initialize(cfg, 0)
	assert.NoError(t, err)

	usePubKey := false
	user, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = checkBasicSFTP(client)
		assert.NoError(t, err)
	}

	for i := 0; i < 3; i++ {
		user.Password = "wrong_pwd"
		_, _, err = getSftpClient(user, usePubKey)
		assert.Error(t, err)
	}

	user.Password = defaultPassword
	_, _, err = getSftpClient(user, usePubKey)
	assert.Error(t, err)

	err = dataprovider.DeleteUser(user.Username, "", "")
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)

	err = common.Initialize(oldConfig, 0)
	assert.NoError(t, err)
}

func TestOpenReadWrite(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	u.QuotaSize = 6553600
	localUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	u = getTestSFTPUser(usePubKey)
	u.QuotaSize = 6553600
	sftpUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	for _, user := range []dataprovider.User{localUser, sftpUser} {
		conn, client, err := getSftpClient(user, usePubKey)
		if assert.NoError(t, err) {
			defer conn.Close()
			defer client.Close()
			sftpFile, err := client.OpenFile(testFileName, os.O_RDWR|os.O_CREATE|os.O_TRUNC)
			if assert.NoError(t, err) {
				testData := []byte("sample test data")
				n, err := sftpFile.Write(testData)
				assert.NoError(t, err)
				assert.Equal(t, len(testData), n)
				buffer := make([]byte, 128)
				n, err = sftpFile.ReadAt(buffer, 1)
				assert.EqualError(t, err, io.EOF.Error())
				assert.Equal(t, len(testData)-1, n)
				assert.Equal(t, testData[1:], buffer[:n])
				err = sftpFile.Close()
				assert.NoError(t, err)
			}
			sftpFile, err = client.OpenFile(testFileName, os.O_RDWR|os.O_CREATE|os.O_TRUNC)
			if assert.NoError(t, err) {
				testData := []byte("new test data")
				n, err := sftpFile.Write(testData)
				assert.NoError(t, err)
				assert.Equal(t, len(testData), n)
				buffer := make([]byte, 128)
				n, err = sftpFile.ReadAt(buffer, 1)
				assert.EqualError(t, err, io.EOF.Error())
				assert.Equal(t, len(testData)-1, n)
				assert.Equal(t, testData[1:], buffer[:n])
				err = sftpFile.Close()
				assert.NoError(t, err)
			}
		}
	}
	_, err = httpdtest.RemoveUser(sftpUser, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(localUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
}

func TestOpenReadWritePerm(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	// we cannot read inside "/sub", rename is needed otherwise the atomic upload will fail for the sftpfs user
	u.Permissions["/sub"] = []string{dataprovider.PermUpload, dataprovider.PermListItems, dataprovider.PermRename}
	localUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	u = getTestSFTPUser(usePubKey)
	u.Permissions["/sub"] = []string{dataprovider.PermUpload, dataprovider.PermListItems}
	sftpUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	for _, user := range []dataprovider.User{localUser, sftpUser} {
		conn, client, err := getSftpClient(user, usePubKey)
		if assert.NoError(t, err) {
			defer conn.Close()
			defer client.Close()
			err = client.Mkdir("sub")
			assert.NoError(t, err)
			sftpFileName := path.Join("sub", "file.txt")
			sftpFile, err := client.OpenFile(sftpFileName, os.O_RDWR|os.O_CREATE|os.O_TRUNC)
			if assert.NoError(t, err) {
				testData := []byte("test data")
				n, err := sftpFile.Write(testData)
				assert.NoError(t, err)
				assert.Equal(t, len(testData), n)
				buffer := make([]byte, 128)
				_, err = sftpFile.ReadAt(buffer, 1)
				if assert.Error(t, err) {
					assert.Contains(t, strings.ToLower(err.Error()), "permission denied")
				}
				err = sftpFile.Close()
				assert.NoError(t, err)
			}
			if user.Username == defaultUsername {
				err = os.RemoveAll(user.GetHomeDir())
				assert.NoError(t, err)
				_, err = httpdtest.RemoveUser(user, http.StatusOK)
				assert.NoError(t, err)
				user.Password = defaultPassword
				user.ID = 0
				user.CreatedAt = 0
				_, resp, err := httpdtest.AddUser(user, http.StatusCreated)
				assert.NoError(t, err, string(resp))
			}
		}
	}
	_, err = httpdtest.RemoveUser(sftpUser, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(localUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
}

func TestConcurrency(t *testing.T) {
	oldValue := common.Config.MaxPerHostConnections
	common.Config.MaxPerHostConnections = 0

	usePubKey := true
	numLogins := 50
	u := getTestUser(usePubKey)
	u.QuotaFiles = numLogins + 1
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	var wg sync.WaitGroup
	testFilePath := filepath.Join(homeBasePath, testFileName)
	testFileSize := int64(262144)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)

	var closedConns atomic.Int32
	for i := 0; i < numLogins; i++ {
		wg.Add(1)
		go func(counter int) {
			defer wg.Done()
			defer closedConns.Add(1)

			conn, client, err := getSftpClient(user, usePubKey)
			if assert.NoError(t, err) {
				err = sftpUploadFile(testFilePath, testFileName+strconv.Itoa(counter), testFileSize, client)
				assert.NoError(t, err)
				assert.Greater(t, common.Connections.GetActiveSessions(defaultUsername), 0)
				client.Close()
				conn.Close()
			}
		}(i)
	}

	wg.Add(1)
	go func() {
		defer wg.Done()

		maxConns := 0
		maxSessions := 0
		for {
			servedReqs := closedConns.Load()
			if servedReqs > 0 {
				stats := common.Connections.GetStats()
				if len(stats) > maxConns {
					maxConns = len(stats)
				}
				activeSessions := common.Connections.GetActiveSessions(defaultUsername)
				if activeSessions > maxSessions {
					maxSessions = activeSessions
				}
			}
			if servedReqs >= int32(numLogins) {
				break
			}
			time.Sleep(1 * time.Millisecond)
		}
		assert.Greater(t, maxConns, 0)
		assert.Greater(t, maxSessions, 0)
	}()

	wg.Wait()

	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		files, err := client.ReadDir(".")
		assert.NoError(t, err)
		assert.Len(t, files, numLogins)
		client.Close()
		conn.Close()
	}

	assert.Eventually(t, func() bool {
		return common.Connections.GetActiveSessions(defaultUsername) == 0
	}, 1*time.Second, 50*time.Millisecond)

	assert.Eventually(t, func() bool {
		return len(common.Connections.GetStats()) == 0
	}, 1*time.Second, 50*time.Millisecond)

	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)

	common.Config.MaxPerHostConnections = oldValue
}

func TestProxyProtocol(t *testing.T) {
	usePubKey := true
	user, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	// remove the home dir to test auto creation
	err = os.RemoveAll(user.HomeDir)
	assert.NoError(t, err)
	conn, client, err := getSftpClientWithAddr(user, usePubKey, sftpSrvAddr2222)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	conn, client, err = getSftpClientWithAddr(user, usePubKey, "127.0.0.1:2224")
	if !assert.Error(t, err) {
		client.Close()
		conn.Close()
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestRealPath(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	localUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	u = getTestSFTPUser(usePubKey)
	sftpUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	for _, user := range []dataprovider.User{localUser, sftpUser} {
		conn, client, err := getSftpClient(user, usePubKey)
		if assert.NoError(t, err) {
			p, err := client.RealPath("../..")
			assert.NoError(t, err)
			assert.Equal(t, "/", p)
			p, err = client.RealPath("../test")
			assert.NoError(t, err)
			assert.Equal(t, "/test", p)
			subdir := "testsubdir"
			err = client.Mkdir(subdir)
			assert.NoError(t, err)
			linkName := testFileName + "_link"
			err = client.Symlink(testFileName, path.Join(subdir, linkName))
			assert.NoError(t, err)
			p, err = client.RealPath(path.Join(subdir, linkName))
			assert.NoError(t, err)
			assert.Equal(t, path.Join("/", testFileName), p)
			// an existing path
			sftpFile, err := client.OpenFile(testFileName, os.O_RDWR|os.O_CREATE|os.O_TRUNC)
			if assert.NoError(t, err) {
				testData := []byte("hello world")
				n, err := sftpFile.WriteAt(testData, 0)
				assert.NoError(t, err)
				assert.Equal(t, len(testData), n)
			}
			p, err = client.RealPath(path.Join(subdir, linkName))
			assert.NoError(t, err)
			assert.Equal(t, path.Join("/", testFileName), p)
			// now a link outside the home dir
			err = os.Symlink(filepath.Clean(os.TempDir()), filepath.Join(localUser.GetHomeDir(), subdir, "temp"))
			assert.NoError(t, err)
			_, err = client.RealPath(path.Join(subdir, "temp"))
			assert.ErrorIs(t, err, os.ErrPermission)

			conn.Close()
			client.Close()
			err = os.Remove(filepath.Join(localUser.GetHomeDir(), subdir, "temp"))
			assert.NoError(t, err)
			if user.Username == localUser.Username {
				err = os.RemoveAll(filepath.Join(localUser.GetHomeDir(), subdir))
				assert.NoError(t, err)
			}
		}
	}
	_, err = httpdtest.RemoveUser(sftpUser, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(localUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
}

func TestBufferedSFTP(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	localUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
	u = getTestSFTPUser(usePubKey)
	u.FsConfig.SFTPConfig.BufferSize = 2
	u.HomeDir = filepath.Join(os.TempDir(), u.Username)
	sftpUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(sftpUser, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFileSize := int64(65535)
		appendDataSize := int64(65535)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		initialHash, err := computeHashForFile(sha256.New(), testFilePath)
		assert.NoError(t, err)

		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = appendToTestFile(testFilePath, appendDataSize)
		assert.NoError(t, err)
		err = sftpUploadResumeFile(testFilePath, testFileName, testFileSize+appendDataSize, false, client)
		if assert.Error(t, err) {
			assert.Contains(t, err.Error(), "SSH_FX_OP_UNSUPPORTED")
		}
		localDownloadPath := filepath.Join(homeBasePath, testDLFileName)
		err = sftpDownloadFile(testFileName, localDownloadPath, testFileSize, client)
		assert.NoError(t, err)
		downloadedFileHash, err := computeHashForFile(sha256.New(), localDownloadPath)
		assert.NoError(t, err)
		assert.Equal(t, initialHash, downloadedFileHash)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
		err = os.Remove(localDownloadPath)
		assert.NoError(t, err)

		sftpFile, err := client.OpenFile(testFileName, os.O_RDWR|os.O_CREATE|os.O_TRUNC)
		if assert.NoError(t, err) {
			testData := []byte("sample test sftp data")
			n, err := sftpFile.Write(testData)
			assert.NoError(t, err)
			assert.Equal(t, len(testData), n)
			err = sftpFile.Truncate(0)
			if assert.Error(t, err) {
				assert.Contains(t, err.Error(), "SSH_FX_OP_UNSUPPORTED")
			}
			err = sftpFile.Truncate(4)
			if assert.Error(t, err) {
				assert.Contains(t, err.Error(), "SSH_FX_OP_UNSUPPORTED")
			}
			buffer := make([]byte, 128)
			_, err = sftpFile.Read(buffer)
			if assert.Error(t, err) {
				assert.Contains(t, err.Error(), "SSH_FX_OP_UNSUPPORTED")
			}
			err = sftpFile.Close()
			assert.NoError(t, err)
			info, err := client.Stat(testFileName)
			if assert.NoError(t, err) {
				assert.Equal(t, int64(len(testData)), info.Size())
			}
		}
		// test WriteAt
		sftpFile, err = client.OpenFile(testFileName, os.O_RDWR|os.O_CREATE|os.O_TRUNC)
		if assert.NoError(t, err) {
			testData := []byte("hello world")
			n, err := sftpFile.WriteAt(testData[:6], 0)
			assert.NoError(t, err)
			assert.Equal(t, 6, n)
			n, err = sftpFile.WriteAt(testData[6:], 6)
			assert.NoError(t, err)
			assert.Equal(t, 5, n)
			err = sftpFile.Close()
			assert.NoError(t, err)
			info, err := client.Stat(testFileName)
			if assert.NoError(t, err) {
				assert.Equal(t, int64(len(testData)), info.Size())
			}
		}
		// test ReadAt
		sftpFile, err = client.OpenFile(testFileName, os.O_RDONLY)
		if assert.NoError(t, err) {
			buffer := make([]byte, 128)
			n, err := sftpFile.ReadAt(buffer, 6)
			assert.ErrorIs(t, err, io.EOF)
			assert.Equal(t, 5, n)
			assert.Equal(t, []byte("world"), buffer[:n])
			err = sftpFile.Close()
			assert.NoError(t, err)
		}
	}

	_, err = httpdtest.RemoveUser(sftpUser, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(localUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(sftpUser.GetHomeDir())
	assert.NoError(t, err)
}

func TestUploadResume(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	localUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
	u = getTestSFTPUser(usePubKey)
	sftpUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	for _, user := range []dataprovider.User{localUser, sftpUser} {
		conn, client, err := getSftpClient(user, usePubKey)
		if assert.NoError(t, err) {
			defer conn.Close()
			defer client.Close()
			testFilePath := filepath.Join(homeBasePath, testFileName)
			testFileSize := int64(65535)
			appendDataSize := int64(65535)
			err = createTestFile(testFilePath, testFileSize)
			assert.NoError(t, err)
			err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
			assert.NoError(t, err)
			err = appendToTestFile(testFilePath, appendDataSize)
			assert.NoError(t, err)
			err = sftpUploadResumeFile(testFilePath, testFileName, testFileSize+appendDataSize, false, client)
			assert.NoError(t, err)
			localDownloadPath := filepath.Join(homeBasePath, testDLFileName)
			err = sftpDownloadFile(testFileName, localDownloadPath, testFileSize+appendDataSize, client)
			assert.NoError(t, err)
			initialHash, err := computeHashForFile(sha256.New(), testFilePath)
			assert.NoError(t, err)
			downloadedFileHash, err := computeHashForFile(sha256.New(), localDownloadPath)
			assert.NoError(t, err)
			assert.Equal(t, initialHash, downloadedFileHash)
			err = sftpUploadResumeFile(testFilePath, testFileName, testFileSize+appendDataSize, true, client)
			assert.Error(t, err, "resume uploading file with invalid offset must fail")
			err = os.Remove(testFilePath)
			assert.NoError(t, err)
			err = os.Remove(localDownloadPath)
			assert.NoError(t, err)
			if user.Username == defaultUsername {
				err = os.RemoveAll(user.GetHomeDir())
				assert.NoError(t, err)
				_, err = httpdtest.RemoveUser(user, http.StatusOK)
				assert.NoError(t, err)
				user.Password = defaultPassword
				user.ID = 0
				user.CreatedAt = 0
				_, resp, err := httpdtest.AddUser(user, http.StatusCreated)
				assert.NoError(t, err, string(resp))
			}
		}
	}
	_, err = httpdtest.RemoveUser(sftpUser, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(localUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
}

func TestDirCommands(t *testing.T) {
	usePubKey := false
	user, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	// remove the home dir to test auto creation
	err = os.RemoveAll(user.HomeDir)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = client.Mkdir("test1")
		assert.NoError(t, err)
		err = client.Rename("test1", "test")
		assert.NoError(t, err)
		// rename a missing file
		err = client.Rename("test1", "test2")
		assert.Error(t, err)
		_, err = client.Lstat("/test1")
		assert.Error(t, err, "stat for renamed dir must not succeed")
		err = client.PosixRename("test", "test1")
		assert.NoError(t, err)
		err = client.Remove("test1")
		assert.NoError(t, err)
		err = client.Mkdir("/test/test1")
		assert.Error(t, err, "recursive mkdir must fail")
		err = client.Mkdir("/test")
		assert.NoError(t, err)
		err = client.Mkdir("/test/test1")
		assert.NoError(t, err)
		_, err = client.ReadDir("/this/dir/does/not/exist")
		assert.Error(t, err, "reading a missing dir must fail")
		err = client.RemoveDirectory("/test/test1")
		assert.NoError(t, err)
		err = client.RemoveDirectory("/test")
		assert.NoError(t, err)
		_, err = client.Lstat("/test")
		assert.Error(t, err, "stat for deleted dir must not succeed")
		_, err = client.Stat("/test")
		assert.Error(t, err, "stat for deleted dir must not succeed")
		err = client.RemoveDirectory("/test")
		assert.Error(t, err, "remove missing path must fail")
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestRemove(t *testing.T) {
	usePubKey := true
	user, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = client.Mkdir("test")
		assert.NoError(t, err)
		err = client.Mkdir("/test/test1")
		assert.NoError(t, err)
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFileSize := int64(65535)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join("/test", testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = client.Remove("/test")
		assert.Error(t, err, "remove non empty dir must fail")
		err = client.RemoveDirectory(path.Join("/test", testFileName))
		assert.Error(t, err, "remove a file with rmdir must fail")
		err = client.Remove(path.Join("/test", testFileName))
		assert.NoError(t, err)
		err = client.Remove(path.Join("/test", testFileName))
		assert.Error(t, err, "remove missing file must fail")
		err = client.Remove("/test/test1")
		assert.NoError(t, err)
		err = client.Remove("/test")
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestLink(t *testing.T) {
	usePubKey := false
	user, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFileSize := int64(65535)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = client.Symlink(testFileName, testFileName+".link")
		assert.NoError(t, err)
		linkName, err := client.ReadLink(testFileName + ".link")
		assert.NoError(t, err)
		assert.Equal(t, path.Join("/", testFileName), linkName)
		err = client.Symlink(testFileName, testFileName+".link")
		assert.Error(t, err, "creating a symlink to an existing one must fail")
		err = client.Link(testFileName, testFileName+".hlink")
		assert.Error(t, err, "hard link is not supported and must fail")
		err = client.Remove(testFileName + ".link")
		assert.NoError(t, err)
		err = client.Remove(testFileName)
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestStat(t *testing.T) {
	usePubKey := false
	localUser, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	sftpUser, _, err := httpdtest.AddUser(getTestSFTPUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	for _, user := range []dataprovider.User{localUser, sftpUser} {
		conn, client, err := getSftpClient(user, usePubKey)
		if assert.NoError(t, err) {
			defer conn.Close()
			defer client.Close()
			testFilePath := filepath.Join(homeBasePath, testFileName)
			testFileSize := int64(65535)
			err = createTestFile(testFilePath, testFileSize)
			assert.NoError(t, err)
			err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
			assert.NoError(t, err)
			_, err := client.Lstat(testFileName)
			assert.NoError(t, err)
			_, err = client.Stat(testFileName)
			assert.NoError(t, err)
			// stat a missing path we should get an fs.ErrNotExist error
			_, err = client.Stat("missing path")
			assert.True(t, errors.Is(err, fs.ErrNotExist))
			_, err = client.Lstat("missing path")
			assert.True(t, errors.Is(err, fs.ErrNotExist))
			// mode 0666 and 0444 works on Windows too
			newPerm := os.FileMode(0666)
			err = client.Chmod(testFileName, newPerm)
			assert.NoError(t, err)
			newFi, err := client.Lstat(testFileName)
			assert.NoError(t, err)
			assert.Equal(t, newPerm, newFi.Mode().Perm())
			newPerm = os.FileMode(0444)
			err = client.Chmod(testFileName, newPerm)
			assert.NoError(t, err)
			newFi, err = client.Lstat(testFileName)
			if assert.NoError(t, err) {
				assert.Equal(t, newPerm, newFi.Mode().Perm())
			}
			_, err = client.ReadLink(testFileName)
			assert.Error(t, err, "readlink on a file must fail")
			symlinkName := testFileName + ".sym"
			err = client.Symlink(testFileName, symlinkName)
			assert.NoError(t, err)
			info, err := client.Lstat(symlinkName)
			if assert.NoError(t, err) {
				assert.True(t, info.Mode()&os.ModeSymlink != 0)
			}
			info, err = client.Stat(symlinkName)
			if assert.NoError(t, err) {
				assert.False(t, info.Mode()&os.ModeSymlink != 0)
			}
			linkName, err := client.ReadLink(symlinkName)
			assert.NoError(t, err)
			assert.Equal(t, path.Join("/", testFileName), linkName)
			newPerm = os.FileMode(0666)
			err = client.Chmod(testFileName, newPerm)
			assert.NoError(t, err)
			err = client.Truncate(testFileName, 100)
			assert.NoError(t, err)
			fi, err := client.Stat(testFileName)
			if assert.NoError(t, err) {
				assert.Equal(t, int64(100), fi.Size())
			}
			f, err := client.OpenFile(testFileName, os.O_WRONLY)
			if assert.NoError(t, err) {
				err = f.Truncate(5)
				assert.NoError(t, err)
				err = f.Close()
				assert.NoError(t, err)
			}
			f, err = client.OpenFile(testFileName, os.O_WRONLY)
			newPerm = os.FileMode(0444)
			if assert.NoError(t, err) {
				err = f.Chmod(newPerm)
				assert.NoError(t, err)
				err = f.Close()
				assert.NoError(t, err)
			}
			newFi, err = client.Lstat(testFileName)
			if assert.NoError(t, err) {
				assert.Equal(t, newPerm, newFi.Mode().Perm())
			}
			newPerm = os.FileMode(0666)
			err = client.Chmod(testFileName, newPerm)
			assert.NoError(t, err)
			err = os.Remove(testFilePath)
			assert.NoError(t, err)
			if user.Username == defaultUsername {
				err = os.RemoveAll(user.GetHomeDir())
				assert.NoError(t, err)
				_, err = httpdtest.RemoveUser(user, http.StatusOK)
				assert.NoError(t, err)
				user.Password = defaultPassword
				user.ID = 0
				user.CreatedAt = 0
				_, resp, err := httpdtest.AddUser(user, http.StatusCreated)
				assert.NoError(t, err, string(resp))
			}
		}
	}
	_, err = httpdtest.RemoveUser(sftpUser, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(localUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
}

func TestStatChownChmod(t *testing.T) {
	if runtime.GOOS == osWindows {
		t.Skip("chown is not supported on Windows, chmod is partially supported")
	}
	usePubKey := true
	localUser, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	sftpUser, _, err := httpdtest.AddUser(getTestSFTPUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	for _, user := range []dataprovider.User{localUser, sftpUser} {
		conn, client, err := getSftpClient(user, usePubKey)
		if assert.NoError(t, err) {
			defer conn.Close()
			defer client.Close()
			testFilePath := filepath.Join(homeBasePath, testFileName)
			testFileSize := int64(65535)
			err = createTestFile(testFilePath, testFileSize)
			assert.NoError(t, err)
			err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
			assert.NoError(t, err)
			err = client.Chown(testFileName, os.Getuid(), os.Getgid())
			assert.NoError(t, err)
			newPerm := os.FileMode(0600)
			err = client.Chmod(testFileName, newPerm)
			assert.NoError(t, err)
			newFi, err := client.Lstat(testFileName)
			assert.NoError(t, err)
			assert.Equal(t, newPerm, newFi.Mode().Perm())
			err = client.Remove(testFileName)
			assert.NoError(t, err)
			err = client.Chmod(testFileName, newPerm)
			assert.EqualError(t, err, os.ErrNotExist.Error())
			err = client.Chown(testFileName, os.Getuid(), os.Getgid())
			assert.EqualError(t, err, os.ErrNotExist.Error())
			err = os.Remove(testFilePath)
			assert.NoError(t, err)
			if user.Username == defaultUsername {
				err = os.RemoveAll(user.GetHomeDir())
				assert.NoError(t, err)
				_, err = httpdtest.RemoveUser(user, http.StatusOK)
				assert.NoError(t, err)
				user.Password = defaultPassword
				user.ID = 0
				user.CreatedAt = 0
				_, resp, err := httpdtest.AddUser(user, http.StatusCreated)
				assert.NoError(t, err, string(resp))
			}
		}
	}
	_, err = httpdtest.RemoveUser(sftpUser, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(localUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
}

func TestSFTPFsLoginWrongFingerprint(t *testing.T) {
	usePubKey := true
	localUser, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	sftpUser, _, err := httpdtest.AddUser(getTestSFTPUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)

	conn, client, err := getSftpClient(sftpUser, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = checkBasicSFTP(client)
		assert.NoError(t, err)
	}

	sftpUser.FsConfig.SFTPConfig.Fingerprints = append(sftpUser.FsConfig.SFTPConfig.Fingerprints, "wrong")
	_, _, err = httpdtest.UpdateUser(sftpUser, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(sftpUser, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = checkBasicSFTP(client)
		assert.NoError(t, err)
	}

	out, err := runSSHCommand("md5sum", sftpUser, usePubKey)
	assert.NoError(t, err)
	assert.Contains(t, string(out), "d41d8cd98f00b204e9800998ecf8427e")

	sftpUser.FsConfig.SFTPConfig.Fingerprints = []string{"wrong"}
	_, _, err = httpdtest.UpdateUser(sftpUser, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(sftpUser, usePubKey)
	if !assert.Error(t, err) {
		defer conn.Close()
		defer client.Close()
	}

	_, err = httpdtest.RemoveUser(sftpUser, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(localUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
}

func TestChtimes(t *testing.T) {
	usePubKey := false
	localUser, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	sftpUser, _, err := httpdtest.AddUser(getTestSFTPUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	for _, user := range []dataprovider.User{localUser, sftpUser} {
		conn, client, err := getSftpClient(user, usePubKey)
		if assert.NoError(t, err) {
			defer conn.Close()
			defer client.Close()
			testFilePath := filepath.Join(homeBasePath, testFileName)
			testFileSize := int64(65535)
			testDir := "test" //nolint:goconst
			err = createTestFile(testFilePath, testFileSize)
			assert.NoError(t, err)
			err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
			assert.NoError(t, err)
			acmodTime := time.Now()
			err = client.Chtimes(testFileName, acmodTime, acmodTime)
			assert.NoError(t, err)
			newFi, err := client.Lstat(testFileName)
			assert.NoError(t, err)
			diff := math.Abs(newFi.ModTime().Sub(acmodTime).Seconds())
			assert.LessOrEqual(t, diff, float64(1))
			err = client.Chtimes("invalidFile", acmodTime, acmodTime)
			assert.EqualError(t, err, os.ErrNotExist.Error())
			err = client.Mkdir(testDir)
			assert.NoError(t, err)
			err = client.Chtimes(testDir, acmodTime, acmodTime)
			assert.NoError(t, err)
			newFi, err = client.Lstat(testDir)
			assert.NoError(t, err)
			diff = math.Abs(newFi.ModTime().Sub(acmodTime).Seconds())
			assert.LessOrEqual(t, diff, float64(1))
			err = os.Remove(testFilePath)
			assert.NoError(t, err)
			if user.Username == defaultUsername {
				err = os.RemoveAll(user.GetHomeDir())
				assert.NoError(t, err)
				_, err = httpdtest.RemoveUser(user, http.StatusOK)
				assert.NoError(t, err)
				user.Password = defaultPassword
				user.ID = 0
				user.CreatedAt = 0
				_, resp, err := httpdtest.AddUser(user, http.StatusCreated)
				assert.NoError(t, err, string(resp))
			}
		}
	}
	_, err = httpdtest.RemoveUser(sftpUser, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(localUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
}

// basic tests to verify virtual chroot, should be improved to cover more cases ...
func TestEscapeHomeDir(t *testing.T) {
	usePubKey := true
	user, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	dirOutsideHome := filepath.Join(homeBasePath, defaultUsername+"1", "dir")
	err = os.MkdirAll(dirOutsideHome, os.ModePerm)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
		testDir := "testDir" //nolint:goconst
		linkPath := filepath.Join(homeBasePath, defaultUsername, testDir)
		err = os.Symlink(homeBasePath, linkPath)
		assert.NoError(t, err)
		_, err = client.ReadDir(testDir)
		assert.Error(t, err, "reading a symbolic link outside home dir should not succeeded")
		err = os.Remove(linkPath)
		assert.NoError(t, err)
		err = os.Symlink(dirOutsideHome, linkPath)
		assert.NoError(t, err)
		_, err := client.ReadDir(testDir)
		assert.Error(t, err, "reading a symbolic link outside home dir should not succeeded")
		err = client.Chmod(path.Join(testDir, "sub", "dir"), os.ModePerm)
		assert.ErrorIs(t, err, os.ErrPermission)
		assert.Error(t, err, "setstat on a file outside home dir must fail")
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFileSize := int64(65535)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		remoteDestPath := path.Join("..", "..", testFileName)
		err = sftpUploadFile(testFilePath, remoteDestPath, testFileSize, client)
		assert.NoError(t, err)
		_, err = client.Lstat(testFileName)
		assert.NoError(t, err)
		err = client.Remove(testFileName)
		assert.NoError(t, err)
		linkPath = filepath.Join(homeBasePath, defaultUsername, testFileName)
		err = os.Symlink(homeBasePath, linkPath)
		assert.NoError(t, err)
		err = sftpDownloadFile(testFileName, testFilePath, 0, client)
		assert.Error(t, err, "download file outside home dir must fail")
		err = sftpUploadFile(testFilePath, remoteDestPath, testFileSize, client)
		assert.Error(t, err, "overwrite a file outside home dir must fail")
		err = client.Chmod(remoteDestPath, 0644)
		assert.Error(t, err, "setstat on a file outside home dir must fail")
		err = os.Remove(linkPath)
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(filepath.Join(homeBasePath, defaultUsername+"1"))
	assert.NoError(t, err)
}

func TestEscapeSFTPFsPrefix(t *testing.T) {
	usePubKey := false
	localUser, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	u := getTestSFTPUser(usePubKey)
	sftpPrefix := "/prefix"
	outPrefix1 := "/pre"
	outPrefix2 := sftpPrefix + "1"
	out1 := "out1"
	out2 := "out2"
	u.FsConfig.SFTPConfig.Prefix = sftpPrefix
	sftpUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(localUser, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = client.Mkdir(sftpPrefix)
		assert.NoError(t, err)
		err = client.Mkdir(outPrefix1)
		assert.NoError(t, err)
		err = client.Mkdir(outPrefix2)
		assert.NoError(t, err)
		err = client.Symlink(outPrefix1, path.Join(sftpPrefix, out1))
		assert.NoError(t, err)
		err = client.Symlink(outPrefix2, path.Join(sftpPrefix, out2))
		assert.NoError(t, err)
	}

	conn, client, err = getSftpClient(sftpUser, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		contents, err := client.ReadDir("/")
		assert.NoError(t, err)
		assert.Len(t, contents, 2)
		_, err = client.ReadDir(out1)
		assert.Error(t, err)
		_, err = client.ReadDir(out2)
		assert.Error(t, err)
		err = client.Mkdir(path.Join(out1, "subout1"))
		assert.Error(t, err)
		err = client.Mkdir(path.Join(out2, "subout2"))
		assert.Error(t, err)
	}

	_, err = httpdtest.RemoveUser(sftpUser, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(localUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
}

func TestGetMimeTypeSFTPFs(t *testing.T) {
	usePubKey := false
	localUser, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	sftpUser, _, err := httpdtest.AddUser(getTestSFTPUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(localUser, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		sftpFile, err := client.OpenFile(testFileName, os.O_RDWR|os.O_CREATE|os.O_TRUNC)
		if assert.NoError(t, err) {
			testData := []byte("some UTF-8 text so we should get a text/plain mime type")
			n, err := sftpFile.Write(testData)
			assert.NoError(t, err)
			assert.Equal(t, len(testData), n)
			err = sftpFile.Close()
			assert.NoError(t, err)
		}
	}

	sftpUser.FsConfig.SFTPConfig.Password = kms.NewPlainSecret(defaultPassword)
	sftpUser.FsConfig.SFTPConfig.PrivateKey = kms.NewEmptySecret()
	fs, err := sftpUser.GetFilesystem("connID")
	if assert.NoError(t, err) {
		assert.True(t, vfs.IsSFTPFs(fs))
		mime, err := fs.GetMimeType(testFileName)
		assert.NoError(t, err)
		assert.Equal(t, "text/plain; charset=utf-8", mime)
	}

	_, err = httpdtest.RemoveUser(sftpUser, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(localUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
}

func TestHomeSpecialChars(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	u.HomeDir = filepath.Join(homeBasePath, "abc açà#&%lk")
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFileSize := int64(65535)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		files, err := client.ReadDir(".")
		assert.NoError(t, err)
		assert.Equal(t, 1, len(files))
		err = client.Remove(testFileName)
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestLogin(t *testing.T) {
	u := getTestUser(false)
	u.PublicKeys = []string{testPubKey}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, false)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Greater(t, user.LastLogin, int64(0), "last login must be updated after a successful login: %v", user.LastLogin)
	}
	conn, client, err = getSftpClient(user, true)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	user.Password = "invalid password"
	conn, client, err = getSftpClient(user, false)
	if !assert.Error(t, err, "login with invalid password must fail") {
		client.Close()
		conn.Close()
	}
	// testPubKey1 is not authorized
	user.PublicKeys = []string{testPubKey1}
	user.Password = ""
	_, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(user, true)
	if !assert.Error(t, err, "login with invalid public key must fail") {
		defer conn.Close()
		defer client.Close()
	}
	// login a user with multiple public keys, only the second one is valid
	user.PublicKeys = []string{testPubKey1, testPubKey}
	user.Password = ""
	_, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(user, true)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestLoginUserCert(t *testing.T) {
	u := getTestUser(true)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	// try login using a cert signed from a trusted CA
	signer, err := getSignerForUserCert([]byte(testCertValid))
	assert.NoError(t, err)
	conn, client, err := getCustomAuthSftpClient(user, []ssh.AuthMethod{ssh.PublicKeys(signer)}, "")
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	// revoke the certificate
	certs := []string{"SHA256:OkxVB1ImSJ2XeI8nA2Wg+6zJVlxdevD1FYBSEJjFEN4"}
	data, err := json.Marshal(certs)
	assert.NoError(t, err)
	err = os.WriteFile(revokeUserCerts, data, 0644)
	assert.NoError(t, err)
	err = sftpd.Reload()
	assert.NoError(t, err)
	conn, client, err = getCustomAuthSftpClient(user, []ssh.AuthMethod{ssh.PublicKeys(signer)}, "")
	if !assert.Error(t, err) {
		client.Close()
		conn.Close()
	}
	// if we remove the revoked certificate login should work again
	certs = []string{"SHA256:bsBRHC/xgiqBJdSuvSTNpJNLTISP/G356jNMCRYC5Es, SHA256:1kxVB1ImSJ2XeI8nA2Wg+6zJVlxdevD1FYBSEJjFEN4"}
	data, err = json.Marshal(certs)
	assert.NoError(t, err)
	err = os.WriteFile(revokeUserCerts, data, 0644)
	assert.NoError(t, err)
	err = sftpd.Reload()
	assert.NoError(t, err)
	conn, client, err = getCustomAuthSftpClient(user, []ssh.AuthMethod{ssh.PublicKeys(signer)}, "")
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}

	// try login using a cert signed from an untrusted CA
	signer, err = getSignerForUserCert([]byte(testCertUntrustedCA))
	assert.NoError(t, err)
	conn, client, err = getCustomAuthSftpClient(user, []ssh.AuthMethod{ssh.PublicKeys(signer)}, "")
	if !assert.Error(t, err) {
		client.Close()
		conn.Close()
	}
	// try login using an host certificate instead of an user certificate
	signer, err = getSignerForUserCert([]byte(testHostCert))
	assert.NoError(t, err)
	conn, client, err = getCustomAuthSftpClient(user, []ssh.AuthMethod{ssh.PublicKeys(signer)}, "")
	if !assert.Error(t, err) {
		client.Close()
		conn.Close()
	}
	// try login using a user certificate with an authorized source address different from localhost
	signer, err = getSignerForUserCert([]byte(testCertOtherSourceAddress))
	assert.NoError(t, err)
	conn, client, err = getCustomAuthSftpClient(user, []ssh.AuthMethod{ssh.PublicKeys(signer)}, "")
	if !assert.Error(t, err) {
		client.Close()
		conn.Close()
	}
	// try login using an expired certificate
	signer, err = getSignerForUserCert([]byte(testCertExpired))
	assert.NoError(t, err)
	conn, client, err = getCustomAuthSftpClient(user, []ssh.AuthMethod{ssh.PublicKeys(signer)}, "")
	if !assert.Error(t, err) {
		client.Close()
		conn.Close()
	}
	// try login using a certificate with no principals
	signer, err = getSignerForUserCert([]byte(testCertNoPrincipals))
	assert.NoError(t, err)
	conn, client, err = getCustomAuthSftpClient(user, []ssh.AuthMethod{ssh.PublicKeys(signer)}, "")
	if !assert.Error(t, err) {
		client.Close()
		conn.Close()
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)

	// the user does not exist
	signer, err = getSignerForUserCert([]byte(testCertValid))
	assert.NoError(t, err)
	conn, client, err = getCustomAuthSftpClient(user, []ssh.AuthMethod{ssh.PublicKeys(signer)}, "")
	if !assert.Error(t, err) {
		client.Close()
		conn.Close()
	}

	// now login with a username not in the set of valid principals for the given certificate
	u.Username += "1"
	user, _, err = httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)

	signer, err = getSignerForUserCert([]byte(testCertValid))
	assert.NoError(t, err)
	conn, client, err = getCustomAuthSftpClient(user, []ssh.AuthMethod{ssh.PublicKeys(signer)}, "")
	if !assert.Error(t, err) {
		client.Close()
		conn.Close()
	}

	err = os.WriteFile(revokeUserCerts, []byte(`[]`), 0644)
	assert.NoError(t, err)
	err = sftpd.Reload()
	assert.NoError(t, err)

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestMultiStepLoginKeyAndPwd(t *testing.T) {
	u := getTestUser(true)
	u.Password = defaultPassword
	u.Filters.DeniedLoginMethods = append(u.Filters.DeniedLoginMethods, []string{
		dataprovider.SSHLoginMethodKeyAndKeyboardInt,
		dataprovider.SSHLoginMethodPublicKey,
		dataprovider.LoginMethodPassword,
		dataprovider.SSHLoginMethodKeyboardInteractive,
	}...)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, true)
	if !assert.Error(t, err, "login with public key is disallowed and must fail") {
		client.Close()
		conn.Close()
	}
	conn, client, err = getSftpClient(user, true)
	if !assert.Error(t, err, "login with password is disallowed and must fail") {
		client.Close()
		conn.Close()
	}
	signer, _ := ssh.ParsePrivateKey([]byte(testPrivateKey))
	authMethods := []ssh.AuthMethod{
		ssh.PublicKeys(signer),
		ssh.Password(defaultPassword),
	}
	conn, client, err = getCustomAuthSftpClient(user, authMethods, "")
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	conn, client, err = getCustomAuthSftpClient(user, authMethods, sftpSrvAddr2222)
	if !assert.Error(t, err, "password auth is disabled on port 2222, multi-step auth must fail") {
		client.Close()
		conn.Close()
	}
	authMethods = []ssh.AuthMethod{
		ssh.Password(defaultPassword),
		ssh.PublicKeys(signer),
	}
	_, _, err = getCustomAuthSftpClient(user, authMethods, "")
	assert.Error(t, err, "multi step auth login with wrong order must fail")
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestMultiStepLoginKeyAndKeyInt(t *testing.T) {
	if runtime.GOOS == osWindows {
		t.Skip("this test is not available on Windows")
	}
	u := getTestUser(true)
	u.Password = defaultPassword
	u.Filters.DeniedLoginMethods = append(u.Filters.DeniedLoginMethods, []string{
		dataprovider.SSHLoginMethodKeyAndPassword,
		dataprovider.SSHLoginMethodPublicKey,
		dataprovider.LoginMethodPassword,
		dataprovider.SSHLoginMethodKeyboardInteractive,
	}...)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	err = os.WriteFile(keyIntAuthPath, getKeyboardInteractiveScriptContent([]string{"1", "2"}, 0, false, 1), os.ModePerm)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, true)
	if !assert.Error(t, err, "login with public key is disallowed and must fail") {
		client.Close()
		conn.Close()
	}

	signer, _ := ssh.ParsePrivateKey([]byte(testPrivateKey))
	authMethods := []ssh.AuthMethod{
		ssh.PublicKeys(signer),
		ssh.KeyboardInteractive(func(user, instruction string, questions []string, echos []bool) ([]string, error) {
			return []string{"1", "2"}, nil
		}),
	}
	conn, client, err = getCustomAuthSftpClient(user, authMethods, "")
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	conn, client, err = getCustomAuthSftpClient(user, authMethods, sftpSrvAddr2222)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	authMethods = []ssh.AuthMethod{
		ssh.KeyboardInteractive(func(user, instruction string, questions []string, echos []bool) ([]string, error) {
			return []string{"1", "2"}, nil
		}),
		ssh.PublicKeys(signer),
	}
	_, _, err = getCustomAuthSftpClient(user, authMethods, "")
	assert.Error(t, err, "multi step auth login with wrong order must fail")

	authMethods = []ssh.AuthMethod{
		ssh.PublicKeys(signer),
		ssh.Password(defaultPassword),
	}
	_, _, err = getCustomAuthSftpClient(user, authMethods, "")
	assert.Error(t, err, "multi step auth login with wrong method must fail")

	user.Filters.DeniedLoginMethods = nil
	user.Filters.DeniedLoginMethods = append(user.Filters.DeniedLoginMethods, []string{
		dataprovider.SSHLoginMethodKeyAndKeyboardInt,
		dataprovider.SSHLoginMethodPublicKey,
		dataprovider.LoginMethodPassword,
		dataprovider.SSHLoginMethodKeyboardInteractive,
	}...)
	user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	_, _, err = getCustomAuthSftpClient(user, authMethods, sftpSrvAddr2222)
	assert.Error(t, err)
	conn, client, err = getCustomAuthSftpClient(user, authMethods, "")
	if assert.NoError(t, err) {
		assert.NoError(t, checkBasicSFTP(client))
		client.Close()
		conn.Close()
	}

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestMultiStepLoginCertAndPwd(t *testing.T) {
	u := getTestUser(true)
	u.Password = defaultPassword
	u.Filters.DeniedLoginMethods = append(u.Filters.DeniedLoginMethods, []string{
		dataprovider.SSHLoginMethodKeyAndKeyboardInt,
		dataprovider.SSHLoginMethodPublicKey,
		dataprovider.LoginMethodPassword,
		dataprovider.SSHLoginMethodKeyboardInteractive,
	}...)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	signer, err := getSignerForUserCert([]byte(testCertValid))
	assert.NoError(t, err)
	authMethods := []ssh.AuthMethod{
		ssh.PublicKeys(signer),
		ssh.Password(defaultPassword),
	}
	conn, client, err := getCustomAuthSftpClient(user, authMethods, "")
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}

	signer, err = getSignerForUserCert([]byte(testCertOtherSourceAddress))
	assert.NoError(t, err)
	authMethods = []ssh.AuthMethod{
		ssh.PublicKeys(signer),
		ssh.Password(defaultPassword),
	}
	conn, client, err = getCustomAuthSftpClient(user, authMethods, "")
	if !assert.Error(t, err) {
		client.Close()
		conn.Close()
	}

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestLoginUserStatus(t *testing.T) {
	usePubKey := true
	user, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Greater(t, user.LastLogin, int64(0), "last login must be updated after a successful login: %v", user.LastLogin)
	}
	user.Status = 0
	user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(user, usePubKey)
	if !assert.Error(t, err, "login for a disabled user must fail") {
		client.Close()
		conn.Close()
	}

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestLoginUserExpiration(t *testing.T) {
	usePubKey := true
	user, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Greater(t, user.LastLogin, int64(0), "last login must be updated after a successful login: %v", user.LastLogin)
	}
	user.ExpirationDate = util.GetTimeAsMsSinceEpoch(time.Now()) - 120000
	user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(user, usePubKey)
	if !assert.Error(t, err, "login for an expired user must fail") {
		client.Close()
		conn.Close()
	}
	user.ExpirationDate = util.GetTimeAsMsSinceEpoch(time.Now()) + 120000
	_, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestLoginWithDatabaseCredentials(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	u.FsConfig.Provider = sdk.GCSFilesystemProvider
	u.FsConfig.GCSConfig.Bucket = "testbucket"
	u.FsConfig.GCSConfig.Credentials = kms.NewPlainSecret(`{ "type": "service_account" }`)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	assert.Equal(t, sdkkms.SecretStatusSecretBox, user.FsConfig.GCSConfig.Credentials.GetStatus())
	assert.NotEmpty(t, user.FsConfig.GCSConfig.Credentials.GetPayload())
	assert.Empty(t, user.FsConfig.GCSConfig.Credentials.GetAdditionalData())
	assert.Empty(t, user.FsConfig.GCSConfig.Credentials.GetKey())

	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
	}

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestLoginInvalidFs(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	u.FsConfig.Provider = sdk.GCSFilesystemProvider
	u.FsConfig.GCSConfig.Bucket = "test"
	u.FsConfig.GCSConfig.Credentials = kms.NewPlainSecret("invalid JSON for credentials")
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)

	conn, client, err := getSftpClient(user, usePubKey)
	if !assert.Error(t, err, "login must fail, the user has an invalid filesystem config") {
		client.Close()
		conn.Close()
	}

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestDeniedProtocols(t *testing.T) {
	u := getTestUser(true)
	u.Filters.DeniedProtocols = []string{common.ProtocolSSH}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, true)
	if !assert.Error(t, err, "SSH protocol is disabled, authentication must fail") {
		client.Close()
		conn.Close()
	}
	user.Filters.DeniedProtocols = []string{common.ProtocolFTP, common.ProtocolWebDAV}
	user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(user, true)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestDeniedLoginMethods(t *testing.T) {
	u := getTestUser(true)
	u.Filters.DeniedLoginMethods = []string{dataprovider.SSHLoginMethodPublicKey, dataprovider.LoginMethodPassword}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, true)
	if !assert.Error(t, err, "public key login is disabled, authentication must fail") {
		client.Close()
		conn.Close()
	}
	user.Filters.DeniedLoginMethods = []string{dataprovider.SSHLoginMethodKeyboardInteractive, dataprovider.LoginMethodPassword}
	user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(user, true)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	user.Password = defaultPassword
	user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)

	conn, client, err = getSftpClient(user, false)
	if !assert.Error(t, err, "password login is disabled, authentication must fail") {
		client.Close()
		conn.Close()
	}
	user.Filters.DeniedLoginMethods = []string{dataprovider.SSHLoginMethodKeyboardInteractive, dataprovider.SSHLoginMethodPublicKey}
	user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(user, false)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestLoginWithIPFilters(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	u.Filters.DeniedIP = []string{"192.167.0.0/24", "172.18.0.0/16"}
	u.Filters.AllowedIP = []string{}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Greater(t, user.LastLogin, int64(0), "last login must be updated after a successful login: %v", user.LastLogin)
	}
	user.Filters.AllowedIP = []string{"127.0.0.0/8"}
	_, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	user.Filters.AllowedIP = []string{"172.19.0.0/16"}
	_, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(user, usePubKey)
	if !assert.Error(t, err, "login from an not allowed IP must fail") {
		client.Close()
		conn.Close()
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestLoginEmptyPassword(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	u.Password = ""
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	user.Password = "empty"
	_, _, err = getSftpClient(user, usePubKey)
	assert.Error(t, err)

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestLoginAnonymousUser(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	u.Password = ""
	u.Filters.IsAnonymous = true
	_, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.Error(t, err)
	user, _, err := httpdtest.GetUserByUsername(u.Username, http.StatusOK)
	assert.NoError(t, err)
	assert.True(t, user.Filters.IsAnonymous)
	assert.Equal(t, []string{dataprovider.PermListItems, dataprovider.PermDownload}, user.Permissions["/"])
	assert.Equal(t, []string{common.ProtocolSSH, common.ProtocolHTTP}, user.Filters.DeniedProtocols)
	assert.Equal(t, []string{dataprovider.SSHLoginMethodPublicKey, dataprovider.SSHLoginMethodPassword,
		dataprovider.SSHLoginMethodKeyboardInteractive, dataprovider.SSHLoginMethodKeyAndPassword,
		dataprovider.SSHLoginMethodKeyAndKeyboardInt, dataprovider.LoginMethodTLSCertificate,
		dataprovider.LoginMethodTLSCertificateAndPwd}, user.Filters.DeniedLoginMethods)
	_, _, err = getSftpClient(user, usePubKey)
	assert.Error(t, err)

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestAnonymousGroupInheritance(t *testing.T) {
	g := getTestGroup()
	g.UserSettings.Filters.IsAnonymous = true
	group, _, err := httpdtest.AddGroup(g, http.StatusCreated)
	assert.NoError(t, err)
	usePubKey := false
	u := getTestUser(usePubKey)
	u.Groups = []sdk.GroupMapping{
		{
			Name: group.Name,
			Type: sdk.GroupTypePrimary,
		},
	}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)

	_, _, err = getSftpClient(user, usePubKey)
	assert.Error(t, err)

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	_, err = httpdtest.RemoveGroup(group, http.StatusOK)
	assert.NoError(t, err)
}

func TestLoginAfterUserUpdateEmptyPwd(t *testing.T) {
	usePubKey := false
	user, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	user.Password = ""
	user.PublicKeys = []string{}
	// password and public key should remain unchanged
	_, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestLoginAfterUserUpdateEmptyPubKey(t *testing.T) {
	usePubKey := true
	user, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	user.Password = ""
	user.PublicKeys = []string{}
	// password and public key should remain unchanged
	_, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestLoginKeyboardInteractiveAuth(t *testing.T) {
	if runtime.GOOS == osWindows {
		t.Skip("this test is not available on Windows")
	}
	user, _, err := httpdtest.AddUser(getTestUser(false), http.StatusCreated)
	assert.NoError(t, err)
	err = os.WriteFile(keyIntAuthPath, getKeyboardInteractiveScriptContent([]string{"1", "2"}, 0, false, 1), os.ModePerm)
	assert.NoError(t, err)
	conn, client, err := getKeyboardInteractiveSftpClient(user, []string{"1", "2"})
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	user.Status = 0
	user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getKeyboardInteractiveSftpClient(user, []string{"1", "2"})
	if !assert.Error(t, err, "keyboard interactive auth must fail the user is disabled") {
		client.Close()
		conn.Close()
	}
	user.Status = 1
	user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	err = os.WriteFile(keyIntAuthPath, getKeyboardInteractiveScriptContent([]string{"1", "2"}, 0, false, -1), os.ModePerm)
	assert.NoError(t, err)
	conn, client, err = getKeyboardInteractiveSftpClient(user, []string{"1", "2"})
	if !assert.Error(t, err, "keyboard interactive auth must fail the script returned -1") {
		client.Close()
		conn.Close()
	}
	err = os.WriteFile(keyIntAuthPath, getKeyboardInteractiveScriptContent([]string{"1", "2"}, 0, true, 1), os.ModePerm)
	assert.NoError(t, err)
	conn, client, err = getKeyboardInteractiveSftpClient(user, []string{"1", "2"})
	if !assert.Error(t, err, "keyboard interactive auth must fail the script returned bad json") {
		client.Close()
		conn.Close()
	}
	err = os.WriteFile(keyIntAuthPath, getKeyboardInteractiveScriptContent([]string{"1", "2"}, 5, true, 1), os.ModePerm)
	assert.NoError(t, err)
	conn, client, err = getKeyboardInteractiveSftpClient(user, []string{"1", "2"})
	if !assert.Error(t, err, "keyboard interactive auth must fail the script returned bad json") {
		client.Close()
		conn.Close()
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestInteractiveLoginWithPasscode(t *testing.T) {
	if runtime.GOOS == osWindows {
		t.Skip("this test is not available on Windows")
	}
	user, _, err := httpdtest.AddUser(getTestUser(false), http.StatusCreated)
	assert.NoError(t, err)
	// test password check
	err = os.WriteFile(keyIntAuthPath, getKeyboardInteractiveScriptForBuiltinChecks(false, 1), os.ModePerm)
	assert.NoError(t, err)
	conn, client, err := getKeyboardInteractiveSftpClient(user, []string{defaultPassword})
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	// wrong password
	_, _, err = getKeyboardInteractiveSftpClient(user, []string{"wrong_password"})
	assert.Error(t, err)
	// correct password but the script returns an error
	err = os.WriteFile(keyIntAuthPath, getKeyboardInteractiveScriptForBuiltinChecks(false, 0), os.ModePerm)
	assert.NoError(t, err)
	_, _, err = getKeyboardInteractiveSftpClient(user, []string{"wrong_password"})
	assert.Error(t, err)
	// add multi-factor authentication
	configName, _, secret, _, err := mfa.GenerateTOTPSecret(mfa.GetAvailableTOTPConfigNames()[0], user.Username)
	assert.NoError(t, err)
	user.Password = defaultPassword
	user.Filters.TOTPConfig = dataprovider.UserTOTPConfig{
		Enabled:    true,
		ConfigName: configName,
		Secret:     kms.NewPlainSecret(secret),
		Protocols:  []string{common.ProtocolSSH},
	}
	err = dataprovider.UpdateUser(&user, "", "")
	assert.NoError(t, err)

	passcode, err := totp.GenerateCodeCustom(secret, time.Now(), totp.ValidateOpts{
		Period:    30,
		Skew:      1,
		Digits:    otp.DigitsSix,
		Algorithm: otp.AlgorithmSHA1,
	})
	assert.NoError(t, err)
	err = os.WriteFile(keyIntAuthPath, getKeyboardInteractiveScriptForBuiltinChecks(true, 1), os.ModePerm)
	assert.NoError(t, err)

	passwordAsked := false
	passcodeAsked := false
	authMethods := []ssh.AuthMethod{
		ssh.KeyboardInteractive(func(_, _ string, questions []string, _ []bool) ([]string, error) {
			var answers []string
			if strings.HasPrefix(questions[0], "Password") {
				answers = append(answers, defaultPassword)
				passwordAsked = true
			} else {
				answers = append(answers, passcode)
				passcodeAsked = true
			}
			return answers, nil
		}),
	}
	conn, client, err = getCustomAuthSftpClient(user, authMethods, "")
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	assert.True(t, passwordAsked)
	assert.True(t, passcodeAsked)
	// the same passcode cannot be reused
	_, _, err = getCustomAuthSftpClient(user, authMethods, "")
	assert.Error(t, err)
	// correct passcode but the script returns an error
	configName, _, secret, _, err = mfa.GenerateTOTPSecret(mfa.GetAvailableTOTPConfigNames()[0], user.Username)
	assert.NoError(t, err)
	user.Password = defaultPassword
	user.Filters.TOTPConfig = dataprovider.UserTOTPConfig{
		Enabled:    true,
		ConfigName: configName,
		Secret:     kms.NewPlainSecret(secret),
		Protocols:  []string{common.ProtocolSSH},
	}
	err = dataprovider.UpdateUser(&user, "", "")
	assert.NoError(t, err)
	passcode, err = totp.GenerateCodeCustom(secret, time.Now(), totp.ValidateOpts{
		Period:    30,
		Skew:      1,
		Digits:    otp.DigitsSix,
		Algorithm: otp.AlgorithmSHA1,
	})
	assert.NoError(t, err)
	err = os.WriteFile(keyIntAuthPath, getKeyboardInteractiveScriptForBuiltinChecks(true, 0), os.ModePerm)
	assert.NoError(t, err)
	passwordAsked = false
	passcodeAsked = false
	_, _, err = getCustomAuthSftpClient(user, authMethods, "")
	assert.Error(t, err)
	authMethods = []ssh.AuthMethod{
		ssh.KeyboardInteractive(func(_, _ string, questions []string, _ []bool) ([]string, error) {
			var answers []string
			if strings.HasPrefix(questions[0], "Password") {
				answers = append(answers, defaultPassword)
				passwordAsked = true
			} else {
				answers = append(answers, passcode)
				passcodeAsked = true
			}
			return answers, nil
		}),
	}
	_, _, err = getCustomAuthSftpClient(user, authMethods, "")
	assert.Error(t, err)
	assert.True(t, passwordAsked)
	assert.True(t, passcodeAsked)

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestSecondFactorRequirement(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	u.Filters.TwoFactorAuthProtocols = []string{common.ProtocolSSH}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)

	_, _, err = getSftpClient(user, usePubKey)
	assert.Error(t, err)

	configName, _, secret, _, err := mfa.GenerateTOTPSecret(mfa.GetAvailableTOTPConfigNames()[0], user.Username)
	assert.NoError(t, err)
	user.Password = defaultPassword
	user.Filters.TOTPConfig = dataprovider.UserTOTPConfig{
		Enabled:    true,
		ConfigName: configName,
		Secret:     kms.NewPlainSecret(secret),
		Protocols:  []string{common.ProtocolSSH},
	}
	err = dataprovider.UpdateUser(&user, "", "")
	assert.NoError(t, err)

	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestNamingRules(t *testing.T) {
	err := dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf := config.GetProviderConf()
	providerConf.NamingRules = 7
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)
	usePubKey := true
	u := getTestUser(usePubKey)
	u.Username = "[email protected] "
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	assert.Equal(t, "[email protected]", user.Username)
	conn, client, err := getSftpClient(u, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	u.Password = defaultPassword
	_, _, err = httpdtest.UpdateUser(u, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(u, false)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	_, err = httpdtest.RemoveUser(u, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(u.GetHomeDir())
	assert.NoError(t, err)
	err = dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf = config.GetProviderConf()
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)
}

func TestPreLoginScript(t *testing.T) {
	if runtime.GOOS == osWindows {
		t.Skip("this test is not available on Windows")
	}
	usePubKey := true
	u := getTestUser(usePubKey)
	err := dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf := config.GetProviderConf()
	err = os.WriteFile(preLoginPath, getPreLoginScriptContent(u, false), os.ModePerm)
	assert.NoError(t, err)
	providerConf.PreLoginHook = preLoginPath
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)

	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(u, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	err = os.WriteFile(preLoginPath, getPreLoginScriptContent(user, true), os.ModePerm)
	assert.NoError(t, err)
	conn, client, err = getSftpClient(u, usePubKey)
	if !assert.Error(t, err, "pre-login script returned a non json response, login must fail") {
		client.Close()
		conn.Close()
	}
	// now disable the the hook
	user.Filters.Hooks.PreLoginDisabled = true
	user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(u, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}

	user.Filters.Hooks.PreLoginDisabled = false
	user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)

	user.Status = 0
	err = os.WriteFile(preLoginPath, getPreLoginScriptContent(user, false), os.ModePerm)
	assert.NoError(t, err)
	conn, client, err = getSftpClient(u, usePubKey)
	if !assert.Error(t, err, "pre-login script returned a disabled user, login must fail") {
		client.Close()
		conn.Close()
	}

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf = config.GetProviderConf()
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)
	err = os.Remove(preLoginPath)
	assert.NoError(t, err)
}

func TestPreLoginUserCreation(t *testing.T) {
	if runtime.GOOS == osWindows {
		t.Skip("this test is not available on Windows")
	}
	usePubKey := false
	u := getTestUser(usePubKey)
	err := dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf := config.GetProviderConf()
	err = os.WriteFile(preLoginPath, getPreLoginScriptContent(u, false), os.ModePerm)
	assert.NoError(t, err)
	providerConf.PreLoginHook = preLoginPath
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)

	user, _, err := httpdtest.GetUserByUsername(defaultUsername, http.StatusNotFound)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(u, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	user, _, err = httpdtest.GetUserByUsername(defaultUsername, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf = config.GetProviderConf()
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)
	err = os.Remove(preLoginPath)
	assert.NoError(t, err)
}

func TestPreLoginHookPreserveMFAConfig(t *testing.T) {
	if runtime.GOOS == osWindows {
		t.Skip("this test is not available on Windows")
	}
	usePubKey := false
	u := getTestUser(usePubKey)
	err := dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf := config.GetProviderConf()
	err = os.WriteFile(preLoginPath, getPreLoginScriptContent(u, false), os.ModePerm)
	assert.NoError(t, err)
	providerConf.PreLoginHook = preLoginPath
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)

	conn, client, err := getSftpClient(u, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	// add multi-factor authentication
	user, _, err := httpdtest.GetUserByUsername(defaultUsername, http.StatusOK)
	assert.NoError(t, err)
	assert.Len(t, user.Filters.RecoveryCodes, 0)
	assert.False(t, user.Filters.TOTPConfig.Enabled)
	configName, _, secret, _, err := mfa.GenerateTOTPSecret(mfa.GetAvailableTOTPConfigNames()[0], user.Username)
	assert.NoError(t, err)
	user.Password = defaultPassword
	user.Filters.TOTPConfig = dataprovider.UserTOTPConfig{
		Enabled:    true,
		ConfigName: configName,
		Secret:     kms.NewPlainSecret(secret),
		Protocols:  []string{common.ProtocolSSH},
	}
	for i := 0; i < 12; i++ {
		user.Filters.RecoveryCodes = append(user.Filters.RecoveryCodes, dataprovider.RecoveryCode{
			Secret: kms.NewPlainSecret(fmt.Sprintf("RC-%v", strings.ToUpper(util.GenerateUniqueID()))),
		})
	}
	err = dataprovider.UpdateUser(&user, "", "")
	assert.NoError(t, err)

	conn, client, err = getSftpClient(u, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}

	user, _, err = httpdtest.GetUserByUsername(defaultUsername, http.StatusOK)
	assert.NoError(t, err)
	assert.Len(t, user.Filters.RecoveryCodes, 12)
	assert.True(t, user.Filters.TOTPConfig.Enabled)
	assert.Equal(t, configName, user.Filters.TOTPConfig.ConfigName)
	assert.Equal(t, []string{common.ProtocolSSH}, user.Filters.TOTPConfig.Protocols)
	assert.Equal(t, sdkkms.SecretStatusSecretBox, user.Filters.TOTPConfig.Secret.GetStatus())

	err = os.WriteFile(extAuthPath, getExitCodeScriptContent(0), os.ModePerm)
	assert.NoError(t, err)

	conn, client, err = getSftpClient(u, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}

	user, _, err = httpdtest.GetUserByUsername(defaultUsername, http.StatusOK)
	assert.NoError(t, err)
	assert.Len(t, user.Filters.RecoveryCodes, 12)
	assert.True(t, user.Filters.TOTPConfig.Enabled)
	assert.Equal(t, configName, user.Filters.TOTPConfig.ConfigName)
	assert.Equal(t, []string{common.ProtocolSSH}, user.Filters.TOTPConfig.Protocols)
	assert.Equal(t, sdkkms.SecretStatusSecretBox, user.Filters.TOTPConfig.Secret.GetStatus())

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)

	err = dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf = config.GetProviderConf()
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)
	err = os.Remove(preLoginPath)
	assert.NoError(t, err)
}

func TestPreDownloadHook(t *testing.T) {
	if runtime.GOOS == osWindows {
		t.Skip("this test is not available on Windows")
	}
	oldExecuteOn := common.Config.Actions.ExecuteOn
	oldHook := common.Config.Actions.Hook

	common.Config.Actions.ExecuteOn = []string{common.OperationPreDownload}
	common.Config.Actions.Hook = preDownloadPath

	usePubKey := true
	u := getTestUser(usePubKey)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	err = os.WriteFile(preDownloadPath, getExitCodeScriptContent(0), os.ModePerm)
	assert.NoError(t, err)
	testFileSize := int64(131072)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	localDownloadPath := filepath.Join(homeBasePath, testDLFileName)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)

	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()

		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = sftpDownloadFile(testFileName, localDownloadPath, testFileSize, client)
		assert.NoError(t, err)
	}

	remoteSCPDownPath := fmt.Sprintf("%[email protected]:%v", user.Username, path.Join("/", testFileName))
	err = scpDownload(localDownloadPath, remoteSCPDownPath, false, false)
	assert.NoError(t, err)

	err = os.WriteFile(preDownloadPath, getExitCodeScriptContent(1), os.ModePerm)
	assert.NoError(t, err)

	conn, client, err = getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()

		err = client.Remove(testFileName)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = sftpDownloadFile(testFileName, localDownloadPath, testFileSize, client)
		assert.ErrorIs(t, err, os.ErrPermission)
	}

	err = scpDownload(localDownloadPath, remoteSCPDownPath, false, false)
	assert.Error(t, err)

	common.Config.Actions.Hook = "http://127.0.0.1:8080/web/admin/login"

	conn, client, err = getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()

		err = client.Remove(testFileName)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = sftpDownloadFile(testFileName, localDownloadPath, testFileSize, client)
		assert.NoError(t, err)
	}
	err = scpDownload(localDownloadPath, remoteSCPDownPath, false, false)
	assert.NoError(t, err)

	common.Config.Actions.Hook = "http://127.0.0.1:8080/"

	conn, client, err = getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()

		err = client.Remove(testFileName)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = sftpDownloadFile(testFileName, localDownloadPath, testFileSize, client)
		assert.ErrorIs(t, err, os.ErrPermission)
	}
	err = scpDownload(localDownloadPath, remoteSCPDownPath, false, false)
	assert.Error(t, err)

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	err = os.Remove(localDownloadPath)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)

	common.Config.Actions.ExecuteOn = oldExecuteOn
	common.Config.Actions.Hook = oldHook
}

func TestPreUploadHook(t *testing.T) {
	if runtime.GOOS == osWindows {
		t.Skip("this test is not available on Windows")
	}
	oldExecuteOn := common.Config.Actions.ExecuteOn
	oldHook := common.Config.Actions.Hook

	common.Config.Actions.ExecuteOn = []string{common.OperationPreUpload}
	common.Config.Actions.Hook = preUploadPath

	usePubKey := true
	u := getTestUser(usePubKey)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	err = os.WriteFile(preUploadPath, getExitCodeScriptContent(0), os.ModePerm)
	assert.NoError(t, err)
	testFileSize := int64(131072)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	localDownloadPath := filepath.Join(homeBasePath, testDLFileName)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)

	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()

		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = sftpDownloadFile(testFileName, localDownloadPath, testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
	}

	remoteSCPUpPath := fmt.Sprintf("%[email protected]:%v", user.Username, path.Join("/", testFileName))
	err = scpUpload(testFilePath, remoteSCPUpPath, true, false)
	assert.NoError(t, err)

	err = os.WriteFile(preUploadPath, getExitCodeScriptContent(1), os.ModePerm)
	assert.NoError(t, err)

	conn, client, err = getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()

		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.ErrorIs(t, err, os.ErrPermission)
		err = sftpUploadFile(testFilePath, testFileName+"1", testFileSize, client)
		assert.ErrorIs(t, err, os.ErrPermission)
	}
	err = scpUpload(testFilePath, remoteSCPUpPath, true, false)
	assert.Error(t, err)

	common.Config.Actions.Hook = "http://127.0.0.1:8080/web/client/login"

	conn, client, err = getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()

		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = sftpDownloadFile(testFileName, localDownloadPath, testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
	}
	err = scpUpload(testFilePath, remoteSCPUpPath, true, false)
	assert.NoError(t, err)

	common.Config.Actions.Hook = "http://127.0.0.1:8080/web"

	conn, client, err = getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()

		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.ErrorIs(t, err, os.ErrPermission)
		err = sftpUploadFile(testFilePath, testFileName+"1", testFileSize, client)
		assert.ErrorIs(t, err, os.ErrPermission)
	}

	err = scpUpload(testFilePath, remoteSCPUpPath, true, false)
	assert.Error(t, err)

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	err = os.Remove(localDownloadPath)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)

	common.Config.Actions.ExecuteOn = oldExecuteOn
	common.Config.Actions.Hook = oldHook
}

func TestPostConnectHook(t *testing.T) {
	if runtime.GOOS == osWindows {
		t.Skip("this test is not available on Windows")
	}
	common.Config.PostConnectHook = postConnectPath

	usePubKey := true
	u := getTestUser(usePubKey)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	err = os.WriteFile(postConnectPath, getExitCodeScriptContent(0), os.ModePerm)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(u, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = checkBasicSFTP(client)
		assert.NoError(t, err)
	}
	err = os.WriteFile(postConnectPath, getExitCodeScriptContent(1), os.ModePerm)
	assert.NoError(t, err)
	conn, client, err = getSftpClient(u, usePubKey)
	if !assert.Error(t, err) {
		client.Close()
		conn.Close()
	}

	common.Config.PostConnectHook = "http://127.0.0.1:8080/healthz"

	conn, client, err = getSftpClient(u, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = checkBasicSFTP(client)
		assert.NoError(t, err)
	}

	common.Config.PostConnectHook = "http://127.0.0.1:8080/notfound"
	conn, client, err = getSftpClient(u, usePubKey)
	if !assert.Error(t, err) {
		client.Close()
		conn.Close()
	}

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)

	common.Config.PostConnectHook = ""
}

func TestCheckPwdHook(t *testing.T) {
	if runtime.GOOS == osWindows {
		t.Skip("this test is not available on Windows")
	}
	usePubKey := false
	u := getTestUser(usePubKey)
	u.QuotaFiles = 1000
	err := dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf := config.GetProviderConf()
	err = os.WriteFile(checkPwdPath, getCheckPwdScriptsContents(2, defaultPassword), os.ModePerm)
	assert.NoError(t, err)
	providerConf.CheckPasswordHook = checkPwdPath
	providerConf.CheckPasswordScope = 1
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)

	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		err = checkBasicSFTP(client)
		assert.NoError(t, err)
		client.Close()
		conn.Close()
	}

	err = os.WriteFile(checkPwdPath, getCheckPwdScriptsContents(0, defaultPassword), os.ModePerm)
	assert.NoError(t, err)
	conn, client, err = getSftpClient(user, usePubKey)
	if !assert.Error(t, err) {
		client.Close()
		conn.Close()
	}

	// now disable the the hook
	user.Filters.Hooks.CheckPasswordDisabled = true
	user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		err = checkBasicSFTP(client)
		assert.NoError(t, err)
		client.Close()
		conn.Close()
	}

	// enable the hook again
	user.Filters.Hooks.CheckPasswordDisabled = false
	user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)

	err = os.WriteFile(checkPwdPath, getCheckPwdScriptsContents(1, ""), os.ModePerm)
	assert.NoError(t, err)
	user.Password = defaultPassword + "1"
	conn, client, err = getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		err = checkBasicSFTP(client)
		assert.NoError(t, err)
		client.Close()
		conn.Close()
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)

	err = dataprovider.Close()
	assert.NoError(t, err)
	providerConf.CheckPasswordScope = 6
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)
	user, _, err = httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	user.Password = defaultPassword + "1"
	conn, client, err = getSftpClient(user, usePubKey)
	if !assert.Error(t, err) {
		client.Close()
		conn.Close()
	}

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)

	err = dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf = config.GetProviderConf()
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)
	err = os.Remove(checkPwdPath)
	assert.NoError(t, err)
}

func TestLoginExternalAuthPwdAndPubKey(t *testing.T) {
	if runtime.GOOS == osWindows {
		t.Skip("this test is not available on Windows")
	}
	usePubKey := true
	u := getTestUser(usePubKey)
	u.QuotaFiles = 1000
	err := dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf := config.GetProviderConf()
	err = os.WriteFile(extAuthPath, getExtAuthScriptContent(u, false, false, ""), os.ModePerm)
	assert.NoError(t, err)
	providerConf.ExternalAuthHook = extAuthPath
	providerConf.ExternalAuthScope = 0
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)

	testFileSize := int64(65535)
	conn, client, err := getSftpClient(u, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFilePath := filepath.Join(homeBasePath, testFileName)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	u.Username = defaultUsername + "1"
	conn, client, err = getSftpClient(u, usePubKey)
	if !assert.Error(t, err, "external auth login with invalid user must fail") {
		client.Close()
		conn.Close()
	}
	usePubKey = false
	u = getTestUser(usePubKey)
	u.PublicKeys = []string{}
	err = os.WriteFile(extAuthPath, getExtAuthScriptContent(u, false, false, ""), os.ModePerm)
	assert.NoError(t, err)
	conn, client, err = getSftpClient(u, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	user, _, err := httpdtest.GetUserByUsername(defaultUsername, http.StatusOK)
	assert.NoError(t, err)
	assert.Equal(t, 0, len(user.PublicKeys))
	assert.Equal(t, testFileSize, user.UsedQuotaSize)
	assert.Equal(t, 1, user.UsedQuotaFiles)

	u.Status = 0
	err = os.WriteFile(extAuthPath, getExtAuthScriptContent(u, false, false, ""), os.ModePerm)
	assert.NoError(t, err)
	conn, client, err = getSftpClient(u, usePubKey)
	if !assert.Error(t, err) {
		client.Close()
		conn.Close()
	}
	// now disable the the hook
	user.Filters.Hooks.ExternalAuthDisabled = true
	user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(u, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)

	err = dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf = config.GetProviderConf()
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)
	err = os.Remove(extAuthPath)
	assert.NoError(t, err)
}

func TestExternalAuthMultiStepLoginKeyAndPwd(t *testing.T) {
	if runtime.GOOS == osWindows {
		t.Skip("this test is not available on Windows")
	}
	u := getTestUser(true)
	u.Password = defaultPassword
	u.Filters.DeniedLoginMethods = append(u.Filters.DeniedLoginMethods, []string{
		dataprovider.SSHLoginMethodKeyAndKeyboardInt,
		dataprovider.SSHLoginMethodPublicKey,
		dataprovider.LoginMethodPassword,
		dataprovider.SSHLoginMethodKeyboardInteractive,
	}...)

	err := dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf := config.GetProviderConf()
	err = os.WriteFile(extAuthPath, getExtAuthScriptContent(u, false, false, ""), os.ModePerm)
	assert.NoError(t, err)
	providerConf.ExternalAuthHook = extAuthPath
	providerConf.ExternalAuthScope = 0
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)

	signer, err := ssh.ParsePrivateKey([]byte(testPrivateKey))
	assert.NoError(t, err)
	authMethods := []ssh.AuthMethod{
		ssh.PublicKeys(signer),
		ssh.Password(defaultPassword),
	}
	conn, client, err := getCustomAuthSftpClient(u, authMethods, "")
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	// wrong sequence should fail
	authMethods = []ssh.AuthMethod{
		ssh.Password(defaultPassword),
		ssh.PublicKeys(signer),
	}
	_, _, err = getCustomAuthSftpClient(u, authMethods, "")
	assert.Error(t, err)

	// public key only auth must fail
	_, _, err = getSftpClient(u, true)
	assert.Error(t, err)
	// password only auth must fail
	_, _, err = getSftpClient(u, false)
	assert.Error(t, err)

	_, err = httpdtest.RemoveUser(u, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(u.GetHomeDir())
	assert.NoError(t, err)

	err = dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf = config.GetProviderConf()
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)
	err = os.Remove(extAuthPath)
	assert.NoError(t, err)
}

func TestExternalAuthEmptyResponse(t *testing.T) {
	if runtime.GOOS == osWindows {
		t.Skip("this test is not available on Windows")
	}
	usePubKey := false
	u := getTestUser(usePubKey)
	u.QuotaFiles = 1000
	err := dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf := config.GetProviderConf()
	err = os.WriteFile(extAuthPath, getExtAuthScriptContent(u, false, false, ""), os.ModePerm)
	assert.NoError(t, err)
	providerConf.ExternalAuthHook = extAuthPath
	providerConf.ExternalAuthScope = 0
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)

	testFileSize := int64(65535)
	// the user will be created
	conn, client, err := getSftpClient(u, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFilePath := filepath.Join(homeBasePath, testFileName)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}

	user, _, err := httpdtest.GetUserByUsername(defaultUsername, http.StatusOK)
	assert.NoError(t, err)
	assert.Equal(t, 0, len(user.PublicKeys))
	assert.Equal(t, testFileSize, user.UsedQuotaSize)
	assert.Equal(t, 1, user.UsedQuotaFiles)
	// now modify the user
	user.MaxSessions = 10
	user.QuotaFiles = 100
	user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)

	err = os.WriteFile(extAuthPath, getExtAuthScriptContent(u, false, true, ""), os.ModePerm)
	assert.NoError(t, err)

	conn, client, err = getSftpClient(u, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = checkBasicSFTP(client)
		assert.NoError(t, err)
	}

	user, _, err = httpdtest.GetUserByUsername(defaultUsername, http.StatusOK)
	assert.NoError(t, err)
	assert.Equal(t, 10, user.MaxSessions)
	assert.Equal(t, 100, user.QuotaFiles)

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)

	err = dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf = config.GetProviderConf()
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)
	err = os.Remove(extAuthPath)
	assert.NoError(t, err)
}

func TestExternalAuthDifferentUsername(t *testing.T) {
	if runtime.GOOS == osWindows {
		t.Skip("this test is not available on Windows")
	}
	usePubKey := false
	extAuthUsername := "common_user"
	u := getTestUser(usePubKey)
	u.QuotaFiles = 1000
	err := dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf := config.GetProviderConf()
	err = os.WriteFile(extAuthPath, getExtAuthScriptContent(u, false, false, extAuthUsername), os.ModePerm)
	assert.NoError(t, err)
	providerConf.ExternalAuthHook = extAuthPath
	providerConf.ExternalAuthScope = 0
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)

	// the user logins using "defaultUsername" and the external auth returns "extAuthUsername"
	testFileSize := int64(65535)
	conn, client, err := getSftpClient(u, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFilePath := filepath.Join(homeBasePath, testFileName)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}

	// logins again to test that used quota is preserved
	conn, client, err = getSftpClient(u, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = checkBasicSFTP(client)
		assert.NoError(t, err)
	}

	_, _, err = httpdtest.GetUserByUsername(defaultUsername, http.StatusNotFound)
	assert.NoError(t, err)

	user, _, err := httpdtest.GetUserByUsername(extAuthUsername, http.StatusOK)
	assert.NoError(t, err)
	assert.Equal(t, 0, len(user.PublicKeys))
	assert.Equal(t, testFileSize, user.UsedQuotaSize)
	assert.Equal(t, 1, user.UsedQuotaFiles)

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)

	err = dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf = config.GetProviderConf()
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)
	err = os.Remove(extAuthPath)
	assert.NoError(t, err)
}

func TestLoginExternalAuth(t *testing.T) {
	if runtime.GOOS == osWindows {
		t.Skip("this test is not available on Windows")
	}
	mappedPath := filepath.Join(os.TempDir(), "vdir1")
	folderName := filepath.Base(mappedPath)
	extAuthScopes := []int{1, 2}
	for _, authScope := range extAuthScopes {
		var usePubKey bool
		if authScope == 1 {
			usePubKey = false
		} else {
			usePubKey = true
		}
		u := getTestUser(usePubKey)
		u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
			BaseVirtualFolder: vfs.BaseVirtualFolder{
				Name:       folderName,
				MappedPath: mappedPath,
			},
			VirtualPath: "/vpath",
			QuotaFiles:  1 + authScope,
			QuotaSize:   10 + int64(authScope),
		})
		err := dataprovider.Close()
		assert.NoError(t, err)
		err = config.LoadConfig(configDir, "")
		assert.NoError(t, err)
		providerConf := config.GetProviderConf()
		err = os.WriteFile(extAuthPath, getExtAuthScriptContent(u, false, false, ""), os.ModePerm)
		assert.NoError(t, err)
		providerConf.ExternalAuthHook = extAuthPath
		providerConf.ExternalAuthScope = authScope
		err = dataprovider.Initialize(providerConf, configDir, true)
		assert.NoError(t, err)

		conn, client, err := getSftpClient(u, usePubKey)
		if assert.NoError(t, err) {
			defer conn.Close()
			defer client.Close()
			assert.NoError(t, checkBasicSFTP(client))
		}
		if !usePubKey {
			found, match := dataprovider.CheckCachedPassword(defaultUsername, defaultPassword)
			assert.True(t, found)
			assert.True(t, match)
		}
		u.Username = defaultUsername + "1"
		conn, client, err = getSftpClient(u, usePubKey)
		if !assert.Error(t, err, "external auth login with invalid user must fail") {
			client.Close()
			conn.Close()
		}
		usePubKey = !usePubKey
		u = getTestUser(usePubKey)
		conn, client, err = getSftpClient(u, usePubKey)
		if !assert.Error(t, err, "external auth login with valid user but invalid auth scope must fail") {
			client.Close()
			conn.Close()
		}
		user, _, err := httpdtest.GetUserByUsername(defaultUsername, http.StatusOK)
		assert.NoError(t, err)
		if assert.Len(t, user.VirtualFolders, 1) {
			folder := user.VirtualFolders[0]
			assert.Equal(t, folderName, folder.Name)
			assert.Equal(t, mappedPath, folder.MappedPath)
			assert.Equal(t, 1+authScope, folder.QuotaFiles)
			assert.Equal(t, 10+int64(authScope), folder.QuotaSize)
		}
		_, err = httpdtest.RemoveUser(user, http.StatusOK)
		assert.NoError(t, err)
		err = os.RemoveAll(user.GetHomeDir())
		assert.NoError(t, err)

		_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName}, http.StatusOK)
		assert.NoError(t, err)
		err = dataprovider.Close()
		assert.NoError(t, err)
		err = config.LoadConfig(configDir, "")
		assert.NoError(t, err)
		providerConf = config.GetProviderConf()
		err = dataprovider.Initialize(providerConf, configDir, true)
		assert.NoError(t, err)
		err = os.Remove(extAuthPath)
		assert.NoError(t, err)
	}
}

func TestLoginExternalAuthCache(t *testing.T) {
	if runtime.GOOS == osWindows {
		t.Skip("this test is not available on Windows")
	}
	u := getTestUser(false)
	u.Filters.ExternalAuthCacheTime = 120
	err := dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf := config.GetProviderConf()
	err = os.WriteFile(extAuthPath, getExtAuthScriptContent(u, false, false, ""), os.ModePerm)
	assert.NoError(t, err)
	providerConf.ExternalAuthHook = extAuthPath
	providerConf.ExternalAuthScope = 1
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(u, false)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	user, _, err := httpdtest.GetUserByUsername(defaultUsername, http.StatusOK)
	assert.NoError(t, err)
	lastLogin := user.LastLogin
	assert.Greater(t, lastLogin, int64(0))
	assert.Equal(t, u.Filters.ExternalAuthCacheTime, user.Filters.ExternalAuthCacheTime)
	// the auth should be now cached so update the hook to return an error
	err = os.WriteFile(extAuthPath, getExtAuthScriptContent(u, true, false, ""), os.ModePerm)
	assert.NoError(t, err)
	conn, client, err = getSftpClient(u, false)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	user, _, err = httpdtest.GetUserByUsername(defaultUsername, http.StatusOK)
	assert.NoError(t, err)
	assert.Equal(t, lastLogin, user.LastLogin)

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)

	err = dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf = config.GetProviderConf()
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)
	err = os.Remove(extAuthPath)
	assert.NoError(t, err)
}

func TestLoginExternalAuthInteractive(t *testing.T) {
	if runtime.GOOS == osWindows {
		t.Skip("this test is not available on Windows")
	}
	usePubKey := false
	u := getTestUser(usePubKey)
	err := dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf := config.GetProviderConf()
	err = os.WriteFile(extAuthPath, getExtAuthScriptContent(u, false, false, ""), os.ModePerm)
	assert.NoError(t, err)
	providerConf.ExternalAuthHook = extAuthPath
	providerConf.ExternalAuthScope = 4
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)

	err = os.WriteFile(keyIntAuthPath, getKeyboardInteractiveScriptContent([]string{"1", "2"}, 0, false, 1), os.ModePerm)
	assert.NoError(t, err)
	conn, client, err := getKeyboardInteractiveSftpClient(u, []string{"1", "2"})
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	u.Username = defaultUsername + "1"
	conn, client, err = getKeyboardInteractiveSftpClient(u, []string{"1", "2"})
	if !assert.Error(t, err, "external auth login with invalid user must fail") {
		client.Close()
		conn.Close()
	}
	usePubKey = true
	u = getTestUser(usePubKey)
	conn, client, err = getSftpClient(u, usePubKey)
	if !assert.Error(t, err, "external auth login with valid user but invalid auth scope must fail") {
		client.Close()
		conn.Close()
	}
	user, _, err := httpdtest.GetUserByUsername(defaultUsername, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)

	err = dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf = config.GetProviderConf()
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)
	err = os.Remove(extAuthPath)
	assert.NoError(t, err)
}

func TestLoginExternalAuthErrors(t *testing.T) {
	if runtime.GOOS == osWindows {
		t.Skip("this test is not available on Windows")
	}
	usePubKey := true
	u := getTestUser(usePubKey)
	err := dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf := config.GetProviderConf()
	err = os.WriteFile(extAuthPath, getExtAuthScriptContent(u, true, false, ""), os.ModePerm)
	assert.NoError(t, err)
	providerConf.ExternalAuthHook = extAuthPath
	providerConf.ExternalAuthScope = 0
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)

	conn, client, err := getSftpClient(u, usePubKey)
	if !assert.Error(t, err, "login must fail, external auth returns a non json response") {
		client.Close()
		conn.Close()
	}

	usePubKey = false
	u = getTestUser(usePubKey)
	conn, client, err = getSftpClient(u, usePubKey)
	if !assert.Error(t, err, "login must fail, external auth returns a non json response") {
		client.Close()
		conn.Close()
	}
	_, _, err = httpdtest.GetUserByUsername(defaultUsername, http.StatusNotFound)
	assert.NoError(t, err)

	err = dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf = config.GetProviderConf()
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)
	err = os.Remove(extAuthPath)
	assert.NoError(t, err)
}

func TestExternalAuthReturningAnonymousUser(t *testing.T) {
	if runtime.GOOS == osWindows {
		t.Skip("this test is not available on Windows")
	}
	usePubKey := false
	u := getTestUser(usePubKey)
	u.Filters.IsAnonymous = true
	u.Password = ""
	err := dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf := config.GetProviderConf()
	err = os.WriteFile(extAuthPath, getExtAuthScriptContent(u, false, false, ""), os.ModePerm)
	assert.NoError(t, err)
	providerConf.ExternalAuthHook = extAuthPath
	providerConf.ExternalAuthScope = 0
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)
	_, _, err = getSftpClient(u, usePubKey)
	assert.Error(t, err)

	user, _, err := httpdtest.GetUserByUsername(defaultUsername, http.StatusOK)
	assert.NoError(t, err)
	assert.True(t, user.Filters.IsAnonymous)
	assert.Equal(t, []string{dataprovider.PermListItems, dataprovider.PermDownload}, user.Permissions["/"])
	assert.Equal(t, []string{common.ProtocolSSH, common.ProtocolHTTP}, user.Filters.DeniedProtocols)
	assert.Equal(t, []string{dataprovider.SSHLoginMethodPublicKey, dataprovider.SSHLoginMethodPassword,
		dataprovider.SSHLoginMethodKeyboardInteractive, dataprovider.SSHLoginMethodKeyAndPassword,
		dataprovider.SSHLoginMethodKeyAndKeyboardInt, dataprovider.LoginMethodTLSCertificate,
		dataprovider.LoginMethodTLSCertificateAndPwd}, user.Filters.DeniedLoginMethods)

	// test again, the user now exists
	_, _, err = getSftpClient(u, usePubKey)
	assert.Error(t, err)
	updatedUser, _, err := httpdtest.GetUserByUsername(defaultUsername, http.StatusOK)
	assert.NoError(t, err)
	user.UpdatedAt = updatedUser.UpdatedAt
	assert.Equal(t, user, updatedUser)

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)

	err = dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf = config.GetProviderConf()
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)
	err = os.Remove(extAuthPath)
	assert.NoError(t, err)
}

func TestExternalAuthPreserveMFAConfig(t *testing.T) {
	if runtime.GOOS == osWindows {
		t.Skip("this test is not available on Windows")
	}
	usePubKey := false
	u := getTestUser(usePubKey)
	err := dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf := config.GetProviderConf()
	err = os.WriteFile(extAuthPath, getExtAuthScriptContent(u, false, false, ""), os.ModePerm)
	assert.NoError(t, err)
	providerConf.ExternalAuthHook = extAuthPath
	providerConf.ExternalAuthScope = 0
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)

	conn, client, err := getSftpClient(u, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	// add multi-factor authentication
	user, _, err := httpdtest.GetUserByUsername(defaultUsername, http.StatusOK)
	assert.NoError(t, err)
	assert.Len(t, user.Filters.RecoveryCodes, 0)
	assert.False(t, user.Filters.TOTPConfig.Enabled)
	configName, _, secret, _, err := mfa.GenerateTOTPSecret(mfa.GetAvailableTOTPConfigNames()[0], user.Username)
	assert.NoError(t, err)
	user.Password = defaultPassword
	user.Filters.TOTPConfig = dataprovider.UserTOTPConfig{
		Enabled:    true,
		ConfigName: configName,
		Secret:     kms.NewPlainSecret(secret),
		Protocols:  []string{common.ProtocolSSH},
	}
	for i := 0; i < 12; i++ {
		user.Filters.RecoveryCodes = append(user.Filters.RecoveryCodes, dataprovider.RecoveryCode{
			Secret: kms.NewPlainSecret(fmt.Sprintf("RC-%v", strings.ToUpper(util.GenerateUniqueID()))),
		})
	}
	err = dataprovider.UpdateUser(&user, "", "")
	assert.NoError(t, err)
	// login again and check that the MFA configs are preserved
	conn, client, err = getSftpClient(u, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}

	user, _, err = httpdtest.GetUserByUsername(defaultUsername, http.StatusOK)
	assert.NoError(t, err)
	assert.Len(t, user.Filters.RecoveryCodes, 12)
	assert.True(t, user.Filters.TOTPConfig.Enabled)
	assert.Equal(t, configName, user.Filters.TOTPConfig.ConfigName)
	assert.Equal(t, []string{common.ProtocolSSH}, user.Filters.TOTPConfig.Protocols)
	assert.Equal(t, sdkkms.SecretStatusSecretBox, user.Filters.TOTPConfig.Secret.GetStatus())

	err = os.WriteFile(extAuthPath, getExtAuthScriptContent(u, false, true, ""), os.ModePerm)
	assert.NoError(t, err)

	conn, client, err = getSftpClient(u, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}

	user, _, err = httpdtest.GetUserByUsername(defaultUsername, http.StatusOK)
	assert.NoError(t, err)
	assert.Len(t, user.Filters.RecoveryCodes, 12)
	assert.True(t, user.Filters.TOTPConfig.Enabled)
	assert.Equal(t, configName, user.Filters.TOTPConfig.ConfigName)
	assert.Equal(t, []string{common.ProtocolSSH}, user.Filters.TOTPConfig.Protocols)
	assert.Equal(t, sdkkms.SecretStatusSecretBox, user.Filters.TOTPConfig.Secret.GetStatus())

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)

	err = dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf = config.GetProviderConf()
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)
	err = os.Remove(extAuthPath)
	assert.NoError(t, err)
}

func TestQuotaDisabledError(t *testing.T) {
	err := dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf := config.GetProviderConf()
	providerConf.TrackQuota = 0
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)
	usePubKey := false
	u := getTestUser(usePubKey)
	u.QuotaFiles = 1
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFileSize := int64(65535)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName+"1", testFileSize, client)
		assert.NoError(t, err)
		err = client.Rename(testFileName+"1", testFileName+".rename")
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)

	err = dataprovider.Close()
	assert.NoError(t, err)
	err = config.LoadConfig(configDir, "")
	assert.NoError(t, err)
	providerConf = config.GetProviderConf()
	err = dataprovider.Initialize(providerConf, configDir, true)
	assert.NoError(t, err)
}

//nolint:dupl
func TestMaxConnections(t *testing.T) {
	oldValue := common.Config.MaxTotalConnections
	common.Config.MaxTotalConnections = 1

	assert.Eventually(t, func() bool {
		return common.Connections.GetClientConnections() == 0
	}, 1000*time.Millisecond, 50*time.Millisecond)

	usePubKey := true
	user := getTestUser(usePubKey)
	err := dataprovider.AddUser(&user, "", "")
	assert.NoError(t, err)
	user.Password = ""
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		assert.NoError(t, checkBasicSFTP(client))
		s, c, err := getSftpClient(user, usePubKey)
		if !assert.Error(t, err, "max total connections exceeded, new login should not succeed") {
			c.Close()
			s.Close()
		}
		err = client.Close()
		assert.NoError(t, err)
		err = conn.Close()
		assert.NoError(t, err)
	}
	err = dataprovider.DeleteUser(user.Username, "", "")
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)

	common.Config.MaxTotalConnections = oldValue
}

//nolint:dupl
func TestMaxPerHostConnections(t *testing.T) {
	oldValue := common.Config.MaxPerHostConnections
	common.Config.MaxPerHostConnections = 1

	assert.Eventually(t, func() bool {
		return common.Connections.GetClientConnections() == 0
	}, 1000*time.Millisecond, 50*time.Millisecond)

	usePubKey := true
	user := getTestUser(usePubKey)
	err := dataprovider.AddUser(&user, "", "")
	assert.NoError(t, err)
	user.Password = ""
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		assert.NoError(t, checkBasicSFTP(client))
		s, c, err := getSftpClient(user, usePubKey)
		if !assert.Error(t, err, "max per host connections exceeded, new login should not succeed") {
			c.Close()
			s.Close()
		}
		err = client.Close()
		assert.NoError(t, err)
		err = conn.Close()
		assert.NoError(t, err)
	}
	err = dataprovider.DeleteUser(user.Username, "", "")
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)

	common.Config.MaxPerHostConnections = oldValue
}

func TestMaxSessions(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	u.Username += "1"
	u.MaxSessions = 1
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
		s, c, err := getSftpClient(user, usePubKey)
		if !assert.Error(t, err, "max sessions exceeded, new login should not succeed") {
			c.Close()
			s.Close()
		}
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestSupportedExtensions(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
		v, ok := client.HasExtension("[email protected]")
		assert.Equal(t, "2", v)
		assert.True(t, ok)
		_, ok = client.HasExtension("[email protected]")
		assert.False(t, ok)
		_, ok = client.HasExtension("[email protected]")
		assert.False(t, ok)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestQuotaFileReplace(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	u.QuotaFiles = 1000
	localUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	u = getTestSFTPUser(usePubKey)
	u.QuotaFiles = 1000
	sftpUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	testFileSize := int64(65535)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	for _, user := range []dataprovider.User{localUser, sftpUser} {
		conn, client, err := getSftpClient(user, usePubKey)
		if assert.NoError(t, err) { //nolint:dupl
			defer conn.Close()
			defer client.Close()
			expectedQuotaSize := testFileSize
			expectedQuotaFiles := 1
			err = createTestFile(testFilePath, testFileSize)
			assert.NoError(t, err)
			err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
			assert.NoError(t, err)
			// now replace the same file, the quota must not change
			err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
			assert.NoError(t, err)
			user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
			assert.NoError(t, err)
			assert.Equal(t, expectedQuotaFiles, user.UsedQuotaFiles)
			assert.Equal(t, expectedQuotaSize, user.UsedQuotaSize)
			// now create a symlink, replace it with a file and check the quota
			// replacing a symlink is like uploading a new file
			err = client.Symlink(testFileName, testFileName+".link")
			assert.NoError(t, err)
			user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
			assert.NoError(t, err)
			assert.Equal(t, expectedQuotaFiles, user.UsedQuotaFiles)
			assert.Equal(t, expectedQuotaSize, user.UsedQuotaSize)
			expectedQuotaFiles++
			expectedQuotaSize += testFileSize
			err = sftpUploadFile(testFilePath, testFileName+".link", testFileSize, client)
			assert.NoError(t, err)
			user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
			assert.NoError(t, err)
			assert.Equal(t, expectedQuotaFiles, user.UsedQuotaFiles)
			assert.Equal(t, expectedQuotaSize, user.UsedQuotaSize)
		}
		// now set a quota size restriction and upload the same file, upload should fail for space limit exceeded
		user.QuotaSize = testFileSize*2 - 1
		user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
		assert.NoError(t, err)
		conn, client, err = getSftpClient(user, usePubKey)
		if assert.NoError(t, err) {
			defer conn.Close()
			defer client.Close()
			err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
			assert.Error(t, err, "quota size exceeded, file upload must fail")
			err = client.Remove(testFileName)
			assert.NoError(t, err)
		}
		if user.Username == defaultUsername {
			err = os.RemoveAll(user.GetHomeDir())
			assert.NoError(t, err)
			_, err = httpdtest.RemoveUser(user, http.StatusOK)
			assert.NoError(t, err)
			user.Password = defaultPassword
			user.ID = 0
			user.CreatedAt = 0
			user.QuotaSize = 0
			_, resp, err := httpdtest.AddUser(user, http.StatusCreated)
			assert.NoError(t, err, string(resp))
		}
	}
	_, err = httpdtest.RemoveUser(sftpUser, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(localUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
}

func TestQuotaRename(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	u.QuotaFiles = 1000
	localUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	u = getTestSFTPUser(usePubKey)
	u.QuotaFiles = 1000
	sftpUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	testFileSize := int64(65535)
	testFileSize1 := int64(65537)
	testFileName1 := "test_file1.dat" //nolint:goconst
	testFilePath := filepath.Join(homeBasePath, testFileName)
	testFilePath1 := filepath.Join(homeBasePath, testFileName1)
	for _, user := range []dataprovider.User{localUser, sftpUser} {
		conn, client, err := getSftpClient(user, usePubKey)
		if assert.NoError(t, err) {
			defer conn.Close()
			defer client.Close()
			err = createTestFile(testFilePath, testFileSize)
			assert.NoError(t, err)
			err = createTestFile(testFilePath1, testFileSize1)
			assert.NoError(t, err)
			err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
			assert.NoError(t, err)
			err = client.Rename(testFileName, testFileName+".rename")
			assert.NoError(t, err)
			err = sftpUploadFile(testFilePath1, testFileName1, testFileSize1, client)
			assert.NoError(t, err)
			user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
			assert.NoError(t, err)
			assert.Equal(t, 2, user.UsedQuotaFiles)
			assert.Equal(t, testFileSize+testFileSize1, user.UsedQuotaSize)
			err = client.Rename(testFileName1, testFileName+".rename")
			assert.NoError(t, err)
			user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
			assert.NoError(t, err)
			assert.Equal(t, 1, user.UsedQuotaFiles)
			assert.Equal(t, testFileSize1, user.UsedQuotaSize)
			err = client.Symlink(testFileName+".rename", testFileName+".symlink")
			assert.NoError(t, err)
			err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
			assert.NoError(t, err)
			// overwrite a symlink
			err = client.Rename(testFileName, testFileName+".symlink")
			assert.NoError(t, err)
			err = client.Mkdir("testdir")
			assert.NoError(t, err)
			err = client.Rename("testdir", "testdir1")
			assert.NoError(t, err)
			err = client.Mkdir("testdir")
			assert.NoError(t, err)
			err = client.Rename("testdir", "testdir1")
			assert.Error(t, err)
			user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
			assert.NoError(t, err)
			assert.Equal(t, 2, user.UsedQuotaFiles)
			assert.Equal(t, testFileSize+testFileSize1, user.UsedQuotaSize)
			testDir := "tdir"
			err = client.Mkdir(testDir)
			assert.NoError(t, err)
			err = sftpUploadFile(testFilePath, path.Join(testDir, testFileName), testFileSize, client)
			assert.NoError(t, err)
			err = sftpUploadFile(testFilePath1, path.Join(testDir, testFileName1), testFileSize1, client)
			assert.NoError(t, err)
			user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
			assert.NoError(t, err)
			assert.Equal(t, 4, user.UsedQuotaFiles)
			assert.Equal(t, testFileSize*2+testFileSize1*2, user.UsedQuotaSize)
			err = client.Rename(testDir, testDir+"1")
			assert.NoError(t, err)
			user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
			assert.NoError(t, err)
			assert.Equal(t, 4, user.UsedQuotaFiles)
			assert.Equal(t, testFileSize*2+testFileSize1*2, user.UsedQuotaSize)
			if user.Username == defaultUsername {
				err = os.RemoveAll(user.GetHomeDir())
				assert.NoError(t, err)
				_, err = httpdtest.RemoveUser(user, http.StatusOK)
				assert.NoError(t, err)
				user.Password = defaultPassword
				user.ID = 0
				user.CreatedAt = 0
				_, resp, err := httpdtest.AddUser(user, http.StatusCreated)
				assert.NoError(t, err, string(resp))
			}
		}
	}
	_, err = httpdtest.RemoveUser(sftpUser, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(localUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	err = os.Remove(testFilePath1)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
}

func TestQuotaScan(t *testing.T) {
	usePubKey := false
	user, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	testFileSize := int64(65535)
	expectedQuotaSize := user.UsedQuotaSize + testFileSize
	expectedQuotaFiles := user.UsedQuotaFiles + 1
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFilePath := filepath.Join(homeBasePath, testFileName)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	// create user with the same home dir, so there is at least an untracked file
	user, _, err = httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	_, err = httpdtest.StartQuotaScan(user, http.StatusAccepted)
	assert.NoError(t, err)
	assert.Eventually(t, func() bool {
		scans, _, err := httpdtest.GetQuotaScans(http.StatusOK)
		if err == nil {
			return len(scans) == 0
		}
		return false
	}, 1*time.Second, 50*time.Millisecond)
	user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
	assert.NoError(t, err)
	assert.Equal(t, expectedQuotaFiles, user.UsedQuotaFiles)
	assert.Equal(t, expectedQuotaSize, user.UsedQuotaSize)
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestMultipleQuotaScans(t *testing.T) {
	res := common.QuotaScans.AddUserQuotaScan(defaultUsername)
	assert.True(t, res)
	res = common.QuotaScans.AddUserQuotaScan(defaultUsername)
	assert.False(t, res, "add quota must fail if another scan is already active")
	assert.True(t, common.QuotaScans.RemoveUserQuotaScan(defaultUsername))
	activeScans := common.QuotaScans.GetUsersQuotaScans()
	assert.Equal(t, 0, len(activeScans))
	assert.False(t, common.QuotaScans.RemoveUserQuotaScan(defaultUsername))
}

func TestQuotaLimits(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	u.QuotaFiles = 1
	localUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	u = getTestSFTPUser(usePubKey)
	u.QuotaFiles = 1
	sftpUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	testFileSize := int64(65535)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	testFileSize1 := int64(131072)
	testFileName1 := "test_file1.dat"
	testFilePath1 := filepath.Join(homeBasePath, testFileName1)
	err = createTestFile(testFilePath1, testFileSize1)
	assert.NoError(t, err)
	testFileSize2 := int64(32768)
	testFileName2 := "test_file2.dat" //nolint:goconst
	testFilePath2 := filepath.Join(homeBasePath, testFileName2)
	err = createTestFile(testFilePath2, testFileSize2)
	assert.NoError(t, err)
	for _, user := range []dataprovider.User{localUser, sftpUser} {
		// test quota files
		conn, client, err := getSftpClient(user, usePubKey)
		if assert.NoError(t, err) {
			defer conn.Close()
			defer client.Close()
			err = sftpUploadFile(testFilePath, testFileName+".quota", testFileSize, client)
			assert.NoError(t, err)
			err = sftpUploadFile(testFilePath, testFileName+".quota.1", testFileSize, client)
			if assert.Error(t, err, "user is over quota files, upload must fail") {
				assert.Contains(t, err.Error(), "SSH_FX_FAILURE")
				assert.Contains(t, err.Error(), common.ErrQuotaExceeded.Error())
			}
			// rename should work
			err = client.Rename(testFileName+".quota", testFileName)
			assert.NoError(t, err)
		}
		// test quota size
		user.QuotaSize = testFileSize - 1
		user.QuotaFiles = 0
		user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
		assert.NoError(t, err)
		conn, client, err = getSftpClient(user, usePubKey)
		if assert.NoError(t, err) {
			defer conn.Close()
			defer client.Close()
			err = sftpUploadFile(testFilePath, testFileName+".quota.1", testFileSize, client)
			if assert.Error(t, err, "user is over quota size, upload must fail") {
				assert.Contains(t, err.Error(), "SSH_FX_FAILURE")
				assert.Contains(t, err.Error(), common.ErrQuotaExceeded.Error())
			}
			err = client.Rename(testFileName, testFileName+".quota")
			assert.NoError(t, err)
			err = client.Rename(testFileName+".quota", testFileName)
			assert.NoError(t, err)
		}
		// now test quota limits while uploading the current file, we have 1 bytes remaining
		user.QuotaSize = testFileSize + 1
		user.QuotaFiles = 0
		user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
		assert.NoError(t, err)
		conn, client, err = getSftpClient(user, usePubKey)
		if assert.NoError(t, err) {
			defer conn.Close()
			defer client.Close()
			err = sftpUploadFile(testFilePath1, testFileName1, testFileSize1, client)
			if assert.Error(t, err) {
				assert.Contains(t, err.Error(), "SSH_FX_FAILURE")
				assert.Contains(t, err.Error(), common.ErrQuotaExceeded.Error())
			}
			_, err = client.Stat(testFileName1)
			assert.Error(t, err)
			_, err = client.Lstat(testFileName1)
			assert.Error(t, err)
			// overwriting an existing file will work if the resulting size is lesser or equal than the current one
			err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
			assert.NoError(t, err)
			err = sftpUploadFile(testFilePath2, testFileName, testFileSize2, client)
			assert.NoError(t, err)
			err = sftpUploadFile(testFilePath1, testFileName, testFileSize1, client)
			assert.Error(t, err)
			_, err := client.Stat(testFileName)
			assert.Error(t, err)
		}
		if user.Username == defaultUsername {
			err = os.RemoveAll(user.GetHomeDir())
			assert.NoError(t, err)
			_, err = httpdtest.RemoveUser(user, http.StatusOK)
			assert.NoError(t, err)
			user.Password = defaultPassword
			user.ID = 0
			user.CreatedAt = 0
			_, resp, err := httpdtest.AddUser(user, http.StatusCreated)
			assert.NoError(t, err, string(resp))
		}
	}
	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	err = os.Remove(testFilePath1)
	assert.NoError(t, err)
	err = os.Remove(testFilePath2)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(sftpUser, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(localUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
}

func TestTransferQuotaLimits(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	u.DownloadDataTransfer = 1
	u.UploadDataTransfer = 1
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	localDownloadPath := filepath.Join(homeBasePath, testDLFileName)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	testFileSize := int64(550000)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)

	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()

		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = sftpDownloadFile(testFileName, localDownloadPath, testFileSize, client)
		assert.NoError(t, err)
		// error while download is active
		err = sftpDownloadFile(testFileName, localDownloadPath, testFileSize, client)
		if assert.Error(t, err) {
			assert.Contains(t, err.Error(), common.ErrReadQuotaExceeded.Error())
		}
		// error before starting the download
		err = sftpDownloadFile(testFileName, localDownloadPath, testFileSize, client)
		if assert.Error(t, err) {
			assert.Contains(t, err.Error(), common.ErrReadQuotaExceeded.Error())
		}
		// error while upload is active
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		if assert.Error(t, err) {
			assert.Contains(t, err.Error(), common.ErrQuotaExceeded.Error())
		}
		// error before starting the upload
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		if assert.Error(t, err) {
			assert.Contains(t, err.Error(), common.ErrQuotaExceeded.Error())
		}
	}

	user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
	assert.NoError(t, err)
	assert.Greater(t, user.UsedDownloadDataTransfer, int64(1024*1024))
	assert.Greater(t, user.UsedUploadDataTransfer, int64(1024*1024))

	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	err = os.Remove(localDownloadPath)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestUploadMaxSize(t *testing.T) {
	testFileSize := int64(65535)
	usePubKey := false
	u := getTestUser(usePubKey)
	u.Filters.MaxUploadFileSize = testFileSize + 1
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	testFileSize1 := int64(131072)
	testFileName1 := "test_file1.dat"
	testFilePath1 := filepath.Join(homeBasePath, testFileName1)
	err = createTestFile(testFilePath1, testFileSize1)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = sftpUploadFile(testFilePath1, testFileName1, testFileSize1, client)
		assert.Error(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		// now test overwrite an existing file with a size bigger than the allowed one
		err = createTestFile(filepath.Join(user.GetHomeDir(), testFileName1), testFileSize1)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, testFileName1, testFileSize1, client)
		assert.Error(t, err)
	}
	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	err = os.Remove(testFilePath1)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestBandwidthAndConnections(t *testing.T) {
	usePubKey := false
	testFileSize := int64(524288)
	u := getTestUser(usePubKey)
	u.UploadBandwidth = 120
	u.DownloadBandwidth = 100
	wantedUploadElapsed := 1000 * (testFileSize / 1024) / u.UploadBandwidth
	wantedDownloadElapsed := 1000 * (testFileSize / 1024) / u.DownloadBandwidth
	// 100 ms tolerance
	wantedUploadElapsed -= 100
	wantedDownloadElapsed -= 100
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFilePath := filepath.Join(homeBasePath, testFileName)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		startTime := time.Now()
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		elapsed := time.Since(startTime).Nanoseconds() / 1000000
		assert.GreaterOrEqual(t, elapsed, wantedUploadElapsed, "upload bandwidth throttling not respected")
		startTime = time.Now()
		localDownloadPath := filepath.Join(homeBasePath, testDLFileName)
		c := sftpDownloadNonBlocking(testFileName, localDownloadPath, testFileSize, client)
		waitForActiveTransfers(t)
		// wait some additional arbitrary time to wait for transfer activity to happen
		// it is need to reach all the code in CheckIdleConnections
		time.Sleep(100 * time.Millisecond)
		err = <-c
		assert.NoError(t, err)
		elapsed = time.Since(startTime).Nanoseconds() / 1000000
		assert.GreaterOrEqual(t, elapsed, wantedDownloadElapsed, "download bandwidth throttling not respected")
		// test disconnection
		c = sftpUploadNonBlocking(testFilePath, testFileName+"_partial", testFileSize, client)
		waitForActiveTransfers(t)
		time.Sleep(100 * time.Millisecond)

		for _, stat := range common.Connections.GetStats() {
			common.Connections.Close(stat.ConnectionID)
		}
		err = <-c
		assert.Error(t, err, "connection closed while uploading: the upload must fail")
		assert.Eventually(t, func() bool {
			return len(common.Connections.GetStats()) == 0
		}, 10*time.Second, 200*time.Millisecond)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
		err = os.Remove(localDownloadPath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestPatternsFilters(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	testFileSize := int64(131072)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	localDownloadPath := filepath.Join(homeBasePath, testDLFileName)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName+".zip", testFileSize, client)
		assert.NoError(t, err)
	}
	user.Filters.FilePatterns = []sdk.PatternsFilter{
		{
			Path:            "/",
			AllowedPatterns: []string{"*.zIp"},
			DeniedPatterns:  []string{},
		},
	}
	user.Filters.DisableFsChecks = true
	_, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.Error(t, err)
		err = sftpDownloadFile(testFileName, localDownloadPath, testFileSize, client)
		assert.Error(t, err)
		err = client.Rename(testFileName, testFileName+"1")
		assert.Error(t, err)
		err = client.Remove(testFileName)
		assert.Error(t, err)
		err = sftpDownloadFile(testFileName+".zip", localDownloadPath, testFileSize, client)
		assert.NoError(t, err)
		err = client.Mkdir("dir.zip")
		assert.NoError(t, err)
		err = client.Rename("dir.zip", "dir1.zip")
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	err = os.Remove(localDownloadPath)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestVirtualFolders(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	mappedPath := filepath.Join(os.TempDir(), "vdir")
	folderName := filepath.Base(mappedPath)
	vdirPath := "/vdir/subdir"
	testDir := "/userDir"
	testDir1 := "/userDir1"
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName,
			MappedPath: mappedPath,
		},
		VirtualPath: vdirPath,
	})
	u.Permissions[testDir] = []string{dataprovider.PermCreateDirs}
	u.Permissions[testDir1] = []string{dataprovider.PermCreateDirs, dataprovider.PermUpload, dataprovider.PermRename}
	u.Permissions[path.Join(testDir1, "subdir")] = []string{dataprovider.PermRename}

	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		// check virtual folder auto creation
		_, err = os.Stat(mappedPath)
		assert.NoError(t, err)
		testFileSize := int64(131072)
		testFilePath := filepath.Join(homeBasePath, testFileName)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		localDownloadPath := filepath.Join(homeBasePath, testDLFileName)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpDownloadFile(path.Join(vdirPath, testFileName), localDownloadPath, testFileSize, client)
		assert.NoError(t, err)
		err = client.Rename(vdirPath, "new_name")
		assert.Error(t, err, "renaming a virtual folder must fail")
		err = client.RemoveDirectory(vdirPath)
		assert.Error(t, err, "removing a virtual folder must fail")
		err = client.Mkdir(vdirPath)
		assert.Error(t, err, "creating a virtual folder must fail")
		err = client.Symlink(path.Join(vdirPath, testFileName), vdirPath)
		assert.Error(t, err, "symlink to a virtual folder must fail")
		err = client.Rename("/vdir", "/vdir1")
		assert.Error(t, err, "renaming a directory with a virtual folder inside must fail")
		err = client.RemoveDirectory("/vdir")
		assert.Error(t, err, "removing a directory with a virtual folder inside must fail")
		err = client.Mkdir("vdir1")
		assert.NoError(t, err)
		// rename empty dir /vdir1, we have permission on /
		err = client.Rename("vdir1", "vdir2")
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join("vdir2", testFileName), testFileSize, client)
		assert.NoError(t, err)
		// we don't have rename permission in testDir and vdir2 contains a file
		err = client.Rename("vdir2", testDir)
		assert.Error(t, err)
		err = client.Rename("vdir2", testDir1)
		assert.NoError(t, err)
		err = client.Rename(testDir1, "vdir2")
		assert.NoError(t, err)
		err = client.MkdirAll(path.Join("vdir2", "subdir"))
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join("vdir2", "subdir", testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = client.Rename("vdir2", testDir1)
		assert.NoError(t, err)
		err = client.Rename(testDir1, "vdir2")
		assert.NoError(t, err)
		err = client.MkdirAll(path.Join("vdir2", "subdir", "subdir"))
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join("vdir2", "subdir", "subdir", testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = client.Rename("vdir2", testDir1)
		assert.NoError(t, err)
		err = client.Rename(testDir1, "vdir3")
		assert.NoError(t, err)
		err = client.Remove(path.Join("vdir3", "subdir", "subdir", testFileName))
		assert.NoError(t, err)
		err = client.RemoveDirectory(path.Join("vdir3", "subdir", "subdir"))
		assert.NoError(t, err)
		err = client.Rename("vdir3", testDir1)
		assert.NoError(t, err)
		err = client.Rename(testDir1, "vdir2")
		assert.NoError(t, err)
		err = client.Symlink(path.Join("vdir2", "subdir", testFileName), path.Join("vdir2", "subdir", "alink"))
		assert.NoError(t, err)
		err = client.Rename("vdir2", testDir1)
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
		err = os.Remove(localDownloadPath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName}, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath)
	assert.NoError(t, err)
}

func TestVirtualFoldersQuotaLimit(t *testing.T) {
	usePubKey := false
	u1 := getTestUser(usePubKey)
	u1.QuotaFiles = 1
	mappedPath1 := filepath.Join(os.TempDir(), "vdir1")
	folderName1 := filepath.Base(mappedPath1)
	vdirPath1 := "/vdir1" //nolint:goconst
	mappedPath2 := filepath.Join(os.TempDir(), "vdir2")
	folderName2 := filepath.Base(mappedPath2)
	vdirPath2 := "/vdir2" //nolint:goconst
	u1.VirtualFolders = append(u1.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName1,
			MappedPath: mappedPath1,
		},
		VirtualPath: vdirPath1,
		QuotaFiles:  -1,
		QuotaSize:   -1,
	})
	u1.VirtualFolders = append(u1.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName2,
			MappedPath: mappedPath2,
		},
		VirtualPath: vdirPath2,
		QuotaFiles:  1,
		QuotaSize:   0,
	})
	testFileSize := int64(131072)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	err := createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	u2 := getTestUser(usePubKey)
	u2.QuotaSize = testFileSize + 1
	u2.VirtualFolders = append(u2.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName1,
			MappedPath: mappedPath1,
		},
		VirtualPath: vdirPath1,
		QuotaFiles:  -1,
		QuotaSize:   -1,
	})
	u2.VirtualFolders = append(u2.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName2,
			MappedPath: mappedPath2,
		},
		VirtualPath: vdirPath2,
		QuotaFiles:  0,
		QuotaSize:   testFileSize + 1,
	})
	users := []dataprovider.User{u1, u2}
	for _, u := range users {
		err = os.MkdirAll(mappedPath1, os.ModePerm)
		assert.NoError(t, err)
		err = os.MkdirAll(mappedPath2, os.ModePerm)
		assert.NoError(t, err)
		user, _, err := httpdtest.AddUser(u, http.StatusCreated)
		assert.NoError(t, err)
		conn, client, err := getSftpClient(user, usePubKey)
		if assert.NoError(t, err) {
			defer conn.Close()
			defer client.Close()
			err = sftpUploadFile(testFilePath, path.Join(vdirPath1, testFileName), testFileSize, client)
			assert.NoError(t, err)
			err = sftpUploadFile(testFilePath, path.Join(vdirPath2, testFileName), testFileSize, client)
			assert.NoError(t, err)
			err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
			assert.Error(t, err)
			_, err = client.Stat(testFileName)
			assert.Error(t, err)
			err = sftpUploadFile(testFilePath, path.Join(vdirPath1, testFileName+"1"), testFileSize, client)
			assert.Error(t, err)
			_, err = client.Stat(path.Join(vdirPath1, testFileName+"1"))
			assert.Error(t, err)
			err = sftpUploadFile(testFilePath, path.Join(vdirPath2, testFileName+"1"), testFileSize, client)
			assert.Error(t, err)
			_, err = client.Stat(path.Join(vdirPath2, testFileName+"1"))
			assert.Error(t, err)
			err = client.Remove(path.Join(vdirPath1, testFileName))
			assert.NoError(t, err)
			err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
			assert.NoError(t, err)
			err = sftpUploadFile(testFilePath, path.Join(vdirPath1, testFileName), testFileSize, client)
			assert.Error(t, err)
			// now test renames
			err = client.Rename(testFileName, path.Join(vdirPath1, testFileName))
			assert.NoError(t, err)
			err = client.Rename(path.Join(vdirPath1, testFileName), path.Join(vdirPath1, testFileName+".rename"))
			assert.NoError(t, err)
			err = client.Rename(path.Join(vdirPath2, testFileName), path.Join(vdirPath2, testFileName+".rename"))
			assert.NoError(t, err)
			err = client.Rename(path.Join(vdirPath2, testFileName+".rename"), testFileName+".rename")
			assert.Error(t, err)
			err = client.Rename(path.Join(vdirPath2, testFileName+".rename"), path.Join(vdirPath1, testFileName))
			assert.Error(t, err)
			err = client.Rename(path.Join(vdirPath1, testFileName+".rename"), path.Join(vdirPath2, testFileName))
			assert.Error(t, err)
			err = client.Rename(path.Join(vdirPath1, testFileName+".rename"), testFileName)
			assert.Error(t, err)
		}
		_, err = httpdtest.RemoveUser(user, http.StatusOK)
		assert.NoError(t, err)
		_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName1}, http.StatusOK)
		assert.NoError(t, err)
		_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName2}, http.StatusOK)
		assert.NoError(t, err)
		err = os.RemoveAll(user.GetHomeDir())
		assert.NoError(t, err)
		err = os.RemoveAll(mappedPath1)
		assert.NoError(t, err)
		err = os.RemoveAll(mappedPath2)
		assert.NoError(t, err)
	}
	err = os.Remove(testFilePath)
	assert.NoError(t, err)
}

func TestSFTPLoopSimple(t *testing.T) {
	usePubKey := false
	user1 := getTestSFTPUser(usePubKey)
	user2 := getTestSFTPUser(usePubKey)
	user1.Username += "1"
	user2.Username += "2"
	user1.FsConfig.Provider = sdk.SFTPFilesystemProvider
	user2.FsConfig.Provider = sdk.SFTPFilesystemProvider
	user1.FsConfig.SFTPConfig = vfs.SFTPFsConfig{
		BaseSFTPFsConfig: sdk.BaseSFTPFsConfig{
			Endpoint: sftpServerAddr,
			Username: user2.Username,
		},
		Password: kms.NewPlainSecret(defaultPassword),
	}
	user2.FsConfig.SFTPConfig = vfs.SFTPFsConfig{
		BaseSFTPFsConfig: sdk.BaseSFTPFsConfig{
			Endpoint: sftpServerAddr,
			Username: user1.Username,
		},
		Password: kms.NewPlainSecret(defaultPassword),
	}
	user1, resp, err := httpdtest.AddUser(user1, http.StatusCreated)
	assert.NoError(t, err, string(resp))
	user2, resp, err = httpdtest.AddUser(user2, http.StatusCreated)
	assert.NoError(t, err, string(resp))

	_, _, err = getSftpClient(user1, usePubKey)
	assert.Error(t, err)
	_, _, err = getSftpClient(user2, usePubKey)
	assert.Error(t, err)

	user1.FsConfig.SFTPConfig.Username = user1.Username
	user1.FsConfig.SFTPConfig.Password = kms.NewPlainSecret(defaultPassword)

	_, _, err = httpdtest.UpdateUser(user1, http.StatusOK, "")
	assert.NoError(t, err)
	_, _, err = getSftpClient(user1, usePubKey)
	assert.Error(t, err)

	_, err = httpdtest.RemoveUser(user1, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user1.GetHomeDir())
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user2, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user2.GetHomeDir())
	assert.NoError(t, err)
}

func TestSFTPLoopVirtualFolders(t *testing.T) {
	usePubKey := false
	sftpFloderName := "sftp"
	user1 := getTestUser(usePubKey)
	user2 := getTestSFTPUser(usePubKey)
	user3 := getTestSFTPUser(usePubKey)
	user1.Username += "1"
	user2.Username += "2"
	user3.Username += "3"

	// user1 is a local account with a virtual SFTP folder to user2
	// user2 has user1 as SFTP fs
	user1.VirtualFolders = append(user1.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name: sftpFloderName,
			FsConfig: vfs.Filesystem{
				Provider: sdk.SFTPFilesystemProvider,
				SFTPConfig: vfs.SFTPFsConfig{
					BaseSFTPFsConfig: sdk.BaseSFTPFsConfig{
						Endpoint:          sftpServerAddr,
						Username:          user2.Username,
						EqualityCheckMode: 1,
					},
					Password: kms.NewPlainSecret(defaultPassword),
				},
			},
		},
		VirtualPath: "/vdir",
	})

	user2.FsConfig.Provider = sdk.SFTPFilesystemProvider
	user2.FsConfig.SFTPConfig = vfs.SFTPFsConfig{
		BaseSFTPFsConfig: sdk.BaseSFTPFsConfig{
			Endpoint: sftpServerAddr,
			Username: user1.Username,
		},
		Password: kms.NewPlainSecret(defaultPassword),
	}
	user3.FsConfig.Provider = sdk.SFTPFilesystemProvider
	user3.FsConfig.SFTPConfig = vfs.SFTPFsConfig{
		BaseSFTPFsConfig: sdk.BaseSFTPFsConfig{
			Endpoint: sftpServerAddr,
			Username: user1.Username,
		},
		Password: kms.NewPlainSecret(defaultPassword),
	}

	user1, resp, err := httpdtest.AddUser(user1, http.StatusCreated)
	assert.NoError(t, err, string(resp))
	user2, resp, err = httpdtest.AddUser(user2, http.StatusCreated)
	assert.NoError(t, err, string(resp))
	user3, resp, err = httpdtest.AddUser(user3, http.StatusCreated)
	assert.NoError(t, err, string(resp))

	// login will work but /vdir will not be accessible
	conn, client, err := getSftpClient(user1, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
		_, err = client.ReadDir("/vdir")
		if assert.Error(t, err) {
			assert.Contains(t, err.Error(), "SFTP loop")
		}
	}
	// now make user2 a local account with an SFTP virtual folder to user1.
	// So we have:
	// user1 -> local account with the SFTP virtual folder /vdir to user2
	// user2 -> local account with the SFTP virtual folder /vdir2 to user3
	// user3 -> sftp user with user1 as fs
	user2.FsConfig.Provider = sdk.LocalFilesystemProvider
	user2.FsConfig.SFTPConfig = vfs.SFTPFsConfig{}
	user2.VirtualFolders = append(user2.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name: sftpFloderName,
			FsConfig: vfs.Filesystem{
				Provider: sdk.SFTPFilesystemProvider,
				SFTPConfig: vfs.SFTPFsConfig{
					BaseSFTPFsConfig: sdk.BaseSFTPFsConfig{
						Endpoint: sftpServerAddr,
						Username: user3.Username,
					},
					Password: kms.NewPlainSecret(defaultPassword),
				},
			},
		},
		VirtualPath: "/vdir2",
	})
	user2, _, err = httpdtest.UpdateUser(user2, http.StatusOK, "")
	assert.NoError(t, err)

	// login will work but /vdir will not be accessible
	conn, client, err = getSftpClient(user1, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
		_, err = client.ReadDir("/vdir")
		if assert.Error(t, err) {
			assert.Contains(t, err.Error(), "SFTP loop")
		}
	}

	_, err = httpdtest.RemoveUser(user1, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user1.GetHomeDir())
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user2, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user2.GetHomeDir())
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user3, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user3.GetHomeDir())
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: sftpFloderName}, http.StatusOK)
	assert.NoError(t, err)
}

func TestNestedVirtualFolders(t *testing.T) {
	usePubKey := true
	baseUser, resp, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err, string(resp))
	u := getTestSFTPUser(usePubKey)
	u.QuotaFiles = 1000
	mappedPathCrypt := filepath.Join(os.TempDir(), "crypt")
	folderNameCrypt := filepath.Base(mappedPathCrypt)
	vdirCryptPath := "/vdir/crypt"
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name: folderNameCrypt,
			FsConfig: vfs.Filesystem{
				Provider: sdk.CryptedFilesystemProvider,
				CryptConfig: vfs.CryptFsConfig{
					Passphrase: kms.NewPlainSecret(defaultPassword),
				},
			},
			MappedPath: mappedPathCrypt,
		},
		VirtualPath: vdirCryptPath,
		QuotaFiles:  100,
	})
	mappedPath := filepath.Join(os.TempDir(), "local")
	folderName := filepath.Base(mappedPath)
	vdirPath := "/vdir/local"
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName,
			MappedPath: mappedPath,
		},
		VirtualPath: vdirPath,
		QuotaFiles:  -1,
		QuotaSize:   -1,
	})
	mappedPathNested := filepath.Join(os.TempDir(), "nested")
	folderNameNested := filepath.Base(mappedPathNested)
	vdirNestedPath := "/vdir/crypt/nested"
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderNameNested,
			MappedPath: mappedPathNested,
		},
		VirtualPath: vdirNestedPath,
		QuotaFiles:  -1,
		QuotaSize:   -1,
	})
	user, resp, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err, string(resp))
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		expectedQuotaSize := int64(0)
		expectedQuotaFiles := 0
		fileSize := int64(32765)
		err = writeSFTPFile(testFileName, fileSize, client)
		assert.NoError(t, err)
		expectedQuotaSize += fileSize
		expectedQuotaFiles++
		fileSize = 38764
		err = writeSFTPFile(path.Join("/vdir", testFileName), fileSize, client)
		assert.NoError(t, err)
		expectedQuotaSize += fileSize
		expectedQuotaFiles++
		fileSize = 18769
		err = writeSFTPFile(path.Join(vdirPath, testFileName), fileSize, client)
		assert.NoError(t, err)
		expectedQuotaSize += fileSize
		expectedQuotaFiles++
		fileSize = 27658
		err = writeSFTPFile(path.Join(vdirNestedPath, testFileName), fileSize, client)
		assert.NoError(t, err)
		expectedQuotaSize += fileSize
		expectedQuotaFiles++
		fileSize = 39765
		err = writeSFTPFile(path.Join(vdirCryptPath, testFileName), fileSize, client)
		assert.NoError(t, err)

		userGet, _, err := httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, expectedQuotaFiles, userGet.UsedQuotaFiles)
		assert.Equal(t, expectedQuotaSize, userGet.UsedQuotaSize)

		folderGet, _, err := httpdtest.GetFolderByName(folderNameCrypt, http.StatusOK)
		assert.NoError(t, err)
		assert.Greater(t, folderGet.UsedQuotaSize, fileSize)
		assert.Equal(t, 1, folderGet.UsedQuotaFiles)

		folderGet, _, err = httpdtest.GetFolderByName(folderName, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, int64(18769), folderGet.UsedQuotaSize)
		assert.Equal(t, 1, folderGet.UsedQuotaFiles)

		folderGet, _, err = httpdtest.GetFolderByName(folderNameNested, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, int64(27658), folderGet.UsedQuotaSize)
		assert.Equal(t, 1, folderGet.UsedQuotaFiles)

		files, err := client.ReadDir("/")
		if assert.NoError(t, err) {
			assert.Len(t, files, 2)
		}
		info, err := client.Stat("vdir")
		if assert.NoError(t, err) {
			assert.True(t, info.IsDir())
		}
		files, err = client.ReadDir("/vdir")
		if assert.NoError(t, err) {
			assert.Len(t, files, 3)
		}
		files, err = client.ReadDir(vdirCryptPath)
		if assert.NoError(t, err) {
			assert.Len(t, files, 2)
		}
		info, err = client.Stat(vdirNestedPath)
		if assert.NoError(t, err) {
			assert.True(t, info.IsDir())
		}
		// finally add some files directly using os method and then check quota
		fName := "testfile"
		fileSize = 123456
		err = createTestFile(filepath.Join(baseUser.HomeDir, fName), fileSize)
		assert.NoError(t, err)
		expectedQuotaSize += fileSize
		expectedQuotaFiles++
		fileSize = 8765
		err = createTestFile(filepath.Join(mappedPath, fName), fileSize)
		assert.NoError(t, err)
		expectedQuotaSize += fileSize
		expectedQuotaFiles++
		fileSize = 98751
		err = createTestFile(filepath.Join(mappedPathNested, fName), fileSize)
		assert.NoError(t, err)
		expectedQuotaSize += fileSize
		expectedQuotaFiles++
		err = createTestFile(filepath.Join(mappedPathCrypt, fName), fileSize)
		assert.NoError(t, err)
		_, err = httpdtest.StartQuotaScan(user, http.StatusAccepted)
		assert.NoError(t, err)
		assert.Eventually(t, func() bool {
			scans, _, err := httpdtest.GetQuotaScans(http.StatusOK)
			if err == nil {
				return len(scans) == 0
			}
			return false
		}, 1*time.Second, 50*time.Millisecond)

		userGet, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, expectedQuotaFiles, userGet.UsedQuotaFiles)
		assert.Equal(t, expectedQuotaSize, userGet.UsedQuotaSize)

		// the crypt folder is not included within user quota so we need to do a separate scan
		_, err = httpdtest.StartFolderQuotaScan(vfs.BaseVirtualFolder{Name: folderNameCrypt}, http.StatusAccepted)
		assert.NoError(t, err)
		assert.Eventually(t, func() bool {
			scans, _, err := httpdtest.GetFoldersQuotaScans(http.StatusOK)
			if err == nil {
				return len(scans) == 0
			}
			return false
		}, 1*time.Second, 50*time.Millisecond)
		folderGet, _, err = httpdtest.GetFolderByName(folderNameCrypt, http.StatusOK)
		assert.NoError(t, err)
		assert.Greater(t, folderGet.UsedQuotaSize, int64(39765+98751))
		assert.Equal(t, 2, folderGet.UsedQuotaFiles)
	}

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderNameCrypt}, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName}, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderNameNested}, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(baseUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(baseUser.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPathCrypt)
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath)
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPathNested)
	assert.NoError(t, err)
}

func TestTruncateQuotaLimits(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	u.QuotaSize = 20
	mappedPath := filepath.Join(os.TempDir(), "mapped")
	folderName := filepath.Base(mappedPath)
	err := os.MkdirAll(mappedPath, os.ModePerm)
	assert.NoError(t, err)
	vdirPath := "/vmapped"
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName,
			MappedPath: mappedPath,
		},
		VirtualPath: vdirPath,
		QuotaFiles:  10,
	})
	localUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	u = getTestSFTPUser(usePubKey)
	u.QuotaSize = 20
	sftpUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	for _, user := range []dataprovider.User{localUser, sftpUser} {
		conn, client, err := getSftpClient(user, usePubKey)
		if assert.NoError(t, err) {
			defer conn.Close()
			defer client.Close()
			data := []byte("test data")
			f, err := client.OpenFile(testFileName, os.O_WRONLY|os.O_CREATE)
			if assert.NoError(t, err) {
				n, err := f.Write(data)
				assert.NoError(t, err)
				assert.Equal(t, len(data), n)
				err = f.Truncate(2)
				assert.NoError(t, err)
				expectedQuotaFiles := 0
				expectedQuotaSize := int64(2)
				user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
				assert.NoError(t, err)
				assert.Equal(t, expectedQuotaFiles, user.UsedQuotaFiles)
				assert.Equal(t, expectedQuotaSize, user.UsedQuotaSize)
				_, err = f.Seek(expectedQuotaSize, io.SeekStart)
				assert.NoError(t, err)
				n, err = f.Write(data)
				assert.NoError(t, err)
				assert.Equal(t, len(data), n)
				err = f.Truncate(5)
				assert.NoError(t, err)
				expectedQuotaSize = int64(5)
				user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
				assert.NoError(t, err)
				assert.Equal(t, expectedQuotaFiles, user.UsedQuotaFiles)
				assert.Equal(t, expectedQuotaSize, user.UsedQuotaSize)
				_, err = f.Seek(expectedQuotaSize, io.SeekStart)
				assert.NoError(t, err)
				n, err = f.Write(data)
				assert.NoError(t, err)
				assert.Equal(t, len(data), n)
				err = f.Close()
				assert.NoError(t, err)
				expectedQuotaFiles = 1
				expectedQuotaSize = int64(5) + int64(len(data))
				user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
				assert.NoError(t, err)
				assert.Equal(t, expectedQuotaFiles, user.UsedQuotaFiles)
				assert.Equal(t, expectedQuotaSize, user.UsedQuotaSize)
			}
			// now truncate by path
			err = client.Truncate(testFileName, 5)
			assert.NoError(t, err)
			user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
			assert.NoError(t, err)
			assert.Equal(t, 1, user.UsedQuotaFiles)
			assert.Equal(t, int64(5), user.UsedQuotaSize)
			// now open an existing file without truncate it, quota should not change
			f, err = client.OpenFile(testFileName, os.O_WRONLY)
			if assert.NoError(t, err) {
				err = f.Close()
				assert.NoError(t, err)
				user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
				assert.NoError(t, err)
				assert.Equal(t, 1, user.UsedQuotaFiles)
				assert.Equal(t, int64(5), user.UsedQuotaSize)
			}
			// open the file truncating it
			f, err = client.OpenFile(testFileName, os.O_WRONLY|os.O_TRUNC)
			if assert.NoError(t, err) {
				err = f.Close()
				assert.NoError(t, err)
				user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
				assert.NoError(t, err)
				assert.Equal(t, 1, user.UsedQuotaFiles)
				assert.Equal(t, int64(0), user.UsedQuotaSize)
			}
			// now test max write size
			f, err = client.OpenFile(testFileName, os.O_WRONLY)
			if assert.NoError(t, err) {
				n, err := f.Write(data)
				assert.NoError(t, err)
				assert.Equal(t, len(data), n)
				err = f.Truncate(11)
				assert.NoError(t, err)
				user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
				assert.NoError(t, err)
				assert.Equal(t, 1, user.UsedQuotaFiles)
				assert.Equal(t, int64(11), user.UsedQuotaSize)
				_, err = f.Seek(int64(11), io.SeekStart)
				assert.NoError(t, err)
				n, err = f.Write(data)
				assert.NoError(t, err)
				assert.Equal(t, len(data), n)
				err = f.Truncate(5)
				assert.NoError(t, err)
				user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
				assert.NoError(t, err)
				assert.Equal(t, 1, user.UsedQuotaFiles)
				assert.Equal(t, int64(5), user.UsedQuotaSize)
				_, err = f.Seek(int64(5), io.SeekStart)
				assert.NoError(t, err)
				n, err = f.Write(data)
				assert.NoError(t, err)
				assert.Equal(t, len(data), n)
				err = f.Truncate(12)
				assert.NoError(t, err)
				user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
				assert.NoError(t, err)
				assert.Equal(t, 1, user.UsedQuotaFiles)
				assert.Equal(t, int64(12), user.UsedQuotaSize)
				_, err = f.Seek(int64(12), io.SeekStart)
				assert.NoError(t, err)
				_, err = f.Write(data)
				if assert.Error(t, err) {
					assert.Contains(t, err.Error(), common.ErrQuotaExceeded.Error())
				}
				err = f.Close()
				assert.Error(t, err)
				// the file is deleted
				user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
				assert.NoError(t, err)
				assert.Equal(t, 0, user.UsedQuotaFiles)
				assert.Equal(t, int64(0), user.UsedQuotaSize)
			}

			if user.Username == defaultUsername {
				// basic test inside a virtual folder
				vfileName := path.Join(vdirPath, testFileName)
				f, err = client.OpenFile(vfileName, os.O_WRONLY|os.O_CREATE)
				if assert.NoError(t, err) {
					n, err := f.Write(data)
					assert.NoError(t, err)
					assert.Equal(t, len(data), n)
					err = f.Truncate(2)
					assert.NoError(t, err)
					expectedQuotaFiles := 0
					expectedQuotaSize := int64(2)
					fold, _, err := httpdtest.GetFolderByName(folderName, http.StatusOK)
					assert.NoError(t, err)
					assert.Equal(t, expectedQuotaSize, fold.UsedQuotaSize)
					assert.Equal(t, expectedQuotaFiles, fold.UsedQuotaFiles)
					err = f.Close()
					assert.NoError(t, err)
					expectedQuotaFiles = 1
					fold, _, err = httpdtest.GetFolderByName(folderName, http.StatusOK)
					assert.NoError(t, err)
					assert.Equal(t, expectedQuotaSize, fold.UsedQuotaSize)
					assert.Equal(t, expectedQuotaFiles, fold.UsedQuotaFiles)
				}
				err = client.Truncate(vfileName, 1)
				assert.NoError(t, err)
				fold, _, err := httpdtest.GetFolderByName(folderName, http.StatusOK)
				assert.NoError(t, err)
				assert.Equal(t, int64(1), fold.UsedQuotaSize)
				assert.Equal(t, 1, fold.UsedQuotaFiles)
				// cleanup
				err = os.RemoveAll(user.GetHomeDir())
				assert.NoError(t, err)
				_, err = httpdtest.RemoveUser(user, http.StatusOK)
				assert.NoError(t, err)
				user.Password = defaultPassword
				user.ID = 0
				user.CreatedAt = 0
				user.QuotaSize = 0
				_, resp, err := httpdtest.AddUser(user, http.StatusCreated)
				assert.NoError(t, err, string(resp))
			}
		}
	}
	_, err = httpdtest.RemoveUser(sftpUser, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(localUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName}, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath)
	assert.NoError(t, err)
}

func TestVirtualFoldersQuotaRenameOverwrite(t *testing.T) {
	usePubKey := true
	testFileSize := int64(131072)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	testFileSize1 := int64(65537)
	testFileName1 := "test_file1.dat"
	testFilePath1 := filepath.Join(homeBasePath, testFileName1)
	err := createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	err = createTestFile(testFilePath1, testFileSize1)
	assert.NoError(t, err)
	u := getTestUser(usePubKey)
	u.QuotaFiles = 0
	u.QuotaSize = 0
	mappedPath1 := filepath.Join(os.TempDir(), "vdir1")
	folderName1 := filepath.Base(mappedPath1)
	vdirPath1 := "/vdir1"
	mappedPath2 := filepath.Join(os.TempDir(), "vdir2")
	folderName2 := filepath.Base(mappedPath2)
	vdirPath2 := "/vdir2"
	mappedPath3 := filepath.Join(os.TempDir(), "vdir3")
	folderName3 := filepath.Base(mappedPath3)
	vdirPath3 := "/vdir3"
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName1,
			MappedPath: mappedPath1,
		},
		VirtualPath: vdirPath1,
		QuotaFiles:  2,
		QuotaSize:   0,
	})
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			MappedPath: mappedPath2,
			Name:       folderName2,
		},
		VirtualPath: vdirPath2,
		QuotaFiles:  0,
		QuotaSize:   testFileSize + testFileSize1 + 1,
	})
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName3,
			MappedPath: mappedPath3,
		},
		VirtualPath: vdirPath3,
		QuotaFiles:  2,
		QuotaSize:   testFileSize * 2,
	})
	err = os.MkdirAll(mappedPath1, os.ModePerm)
	assert.NoError(t, err)
	err = os.MkdirAll(mappedPath2, os.ModePerm)
	assert.NoError(t, err)
	err = os.MkdirAll(mappedPath3, os.ModePerm)
	assert.NoError(t, err)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = sftpUploadFile(testFilePath, path.Join(vdirPath1, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath2, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(vdirPath1, testFileName1), testFileSize1, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(vdirPath2, testFileName1), testFileSize1, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, testFileName1, testFileSize1, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath3, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath3, testFileName+"1"), testFileSize, client)
		assert.NoError(t, err)
		err = client.Rename(testFileName, path.Join(vdirPath1, testFileName+".rename"))
		assert.Error(t, err)
		// we overwrite an existing file and we have unlimited size
		err = client.Rename(testFileName, path.Join(vdirPath1, testFileName))
		assert.NoError(t, err)
		// we have no space and we try to overwrite a bigger file with a smaller one, this should succeed
		err = client.Rename(testFileName1, path.Join(vdirPath2, testFileName))
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath2, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		// we have no space and we try to overwrite a smaller file with a bigger one, this should fail
		err = client.Rename(testFileName, path.Join(vdirPath2, testFileName1))
		assert.Error(t, err)
		fi, err := client.Stat(path.Join(vdirPath1, testFileName1))
		if assert.NoError(t, err) {
			assert.Equal(t, testFileSize1, fi.Size())
		}
		// we are overquota inside vdir3 size 2/2 and size 262144/262144
		err = client.Rename(path.Join(vdirPath1, testFileName1), path.Join(vdirPath3, testFileName1+".rename"))
		assert.Error(t, err)
		// we overwrite an existing file and we have enough size
		err = client.Rename(path.Join(vdirPath1, testFileName1), path.Join(vdirPath3, testFileName))
		assert.NoError(t, err)
		testFileName2 := "test_file2.dat"
		testFilePath2 := filepath.Join(homeBasePath, testFileName2)
		err = createTestFile(testFilePath2, testFileSize+testFileSize1)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath2, testFileName2, testFileSize+testFileSize1, client)
		assert.NoError(t, err)
		// we overwrite an existing file and we haven't enough size
		err = client.Rename(testFileName2, path.Join(vdirPath3, testFileName))
		assert.Error(t, err)
		err = os.Remove(testFilePath2)
		assert.NoError(t, err)
		// now remove a file from vdir3, create a dir with 2 files and try to rename it in vdir3
		// this will fail since the rename will result in 3 files inside vdir3 and quota limits only
		// allow 2 total files there
		err = client.Remove(path.Join(vdirPath3, testFileName+"1"))
		assert.NoError(t, err)
		aDir := "a dir"
		err = client.Mkdir(aDir)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(aDir, testFileName1), testFileSize1, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(aDir, testFileName1+"1"), testFileSize1, client)
		assert.NoError(t, err)
		err = client.Rename(aDir, path.Join(vdirPath3, aDir))
		assert.Error(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName1}, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName2}, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName3}, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath1)
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath2)
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath3)
	assert.NoError(t, err)
	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	err = os.Remove(testFilePath1)
	assert.NoError(t, err)
}

func TestVirtualFoldersQuotaValues(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	u.QuotaFiles = 100
	mappedPath1 := filepath.Join(os.TempDir(), "vdir1")
	vdirPath1 := "/vdir1" //nolint:goconst
	folderName1 := filepath.Base(mappedPath1)
	mappedPath2 := filepath.Join(os.TempDir(), "vdir2")
	vdirPath2 := "/vdir2" //nolint:goconst
	folderName2 := filepath.Base(mappedPath2)
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName1,
			MappedPath: mappedPath1,
		},
		VirtualPath: vdirPath1,
		// quota is included in the user's one
		QuotaFiles: -1,
		QuotaSize:  -1,
	})
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName2,
			MappedPath: mappedPath2,
		},
		VirtualPath: vdirPath2,
		// quota is unlimited and excluded from user's one
		QuotaFiles: 0,
		QuotaSize:  0,
	})
	err := os.MkdirAll(mappedPath1, os.ModePerm)
	assert.NoError(t, err)
	err = os.MkdirAll(mappedPath2, os.ModePerm)
	assert.NoError(t, err)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFileSize := int64(131072)
		testFilePath := filepath.Join(homeBasePath, testFileName)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		// we copy the same file two times to test quota update on file overwrite
		err = sftpUploadFile(testFilePath, path.Join(vdirPath1, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath1, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath2, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath2, testFileName), testFileSize, client)
		assert.NoError(t, err)
		expectedQuotaFiles := 2
		expectedQuotaSize := testFileSize * 2
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, expectedQuotaFiles, user.UsedQuotaFiles)
		assert.Equal(t, expectedQuotaSize, user.UsedQuotaSize)
		f, _, err := httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)

		err = client.Remove(path.Join(vdirPath1, testFileName))
		assert.NoError(t, err)
		err = client.Remove(path.Join(vdirPath2, testFileName))
		assert.NoError(t, err)

		f, _, err = httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, int64(0), f.UsedQuotaSize)
		assert.Equal(t, 0, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, int64(0), f.UsedQuotaSize)
		assert.Equal(t, 0, f.UsedQuotaFiles)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName1}, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName2}, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath1)
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath2)
	assert.NoError(t, err)
}

func TestQuotaRenameInsideSameVirtualFolder(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	u.QuotaFiles = 100
	mappedPath1 := filepath.Join(os.TempDir(), "vdir1")
	vdirPath1 := "/vdir1"
	folderName1 := filepath.Base(mappedPath1)
	mappedPath2 := filepath.Join(os.TempDir(), "vdir2")
	vdirPath2 := "/vdir2"
	folderName2 := filepath.Base(mappedPath2)
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName1,
			MappedPath: mappedPath1,
		},
		VirtualPath: vdirPath1,
		// quota is included in the user's one
		QuotaFiles: -1,
		QuotaSize:  -1,
	})
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName2,
			MappedPath: mappedPath2,
		},
		VirtualPath: vdirPath2,
		// quota is unlimited and excluded from user's one
		QuotaFiles: 0,
		QuotaSize:  0,
	})
	err := os.MkdirAll(mappedPath1, os.ModePerm)
	assert.NoError(t, err)
	err = os.MkdirAll(mappedPath2, os.ModePerm)
	assert.NoError(t, err)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFileName1 := "test_file1.dat"
		testFileSize := int64(131072)
		testFileSize1 := int64(65535)
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFilePath1 := filepath.Join(homeBasePath, testFileName1)
		dir1 := "dir1" //nolint:goconst
		dir2 := "dir2" //nolint:goconst
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = createTestFile(testFilePath1, testFileSize1)
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath1, dir1))
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath1, dir2))
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath2, dir1))
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath2, dir2))
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath1, dir1, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(vdirPath1, dir2, testFileName1), testFileSize1, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath2, dir1, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(vdirPath2, dir2, testFileName1), testFileSize1, client)
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 2, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize+testFileSize1, user.UsedQuotaSize)
		f, _, err := httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize+testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 2, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize+testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 2, f.UsedQuotaFiles)
		// initial files:
		// - vdir1/dir1/testFileName
		// - vdir1/dir2/testFileName1
		// - vdir2/dir1/testFileName
		// - vdir2/dir2/testFileName1
		//
		// rename a file inside vdir1 it is included inside user quota, so we have:
		// - vdir1/dir1/testFileName.rename
		// - vdir1/dir2/testFileName1
		// - vdir2/dir1/testFileName
		// - vdir2/dir2/testFileName1
		err = client.Rename(path.Join(vdirPath1, dir1, testFileName), path.Join(vdirPath1, dir1, testFileName+".rename"))
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 2, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize+testFileSize1, user.UsedQuotaSize)
		f, _, err = httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize+testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 2, f.UsedQuotaFiles)
		// rename a file inside vdir2, it isn't included inside user quota, so we have:
		// - vdir1/dir1/testFileName.rename
		// - vdir1/dir2/testFileName1
		// - vdir2/dir1/testFileName.rename
		// - vdir2/dir2/testFileName1
		err = client.Rename(path.Join(vdirPath2, dir1, testFileName), path.Join(vdirPath2, dir1, testFileName+".rename"))
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 2, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize+testFileSize1, user.UsedQuotaSize)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize+testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 2, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize+testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 2, f.UsedQuotaFiles)
		// rename a file inside vdir2 overwriting an existing, we now have:
		// - vdir1/dir1/testFileName.rename
		// - vdir1/dir2/testFileName1
		// - vdir2/dir1/testFileName.rename (initial testFileName1)
		err = client.Rename(path.Join(vdirPath2, dir2, testFileName1), path.Join(vdirPath2, dir1, testFileName+".rename"))
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 2, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize+testFileSize1, user.UsedQuotaSize)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize+testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 2, f.UsedQuotaFiles)
		// rename a file inside vdir1 overwriting an existing, we now have:
		// - vdir1/dir1/testFileName.rename (initial testFileName1)
		// - vdir2/dir1/testFileName.rename (initial testFileName1)
		err = client.Rename(path.Join(vdirPath1, dir2, testFileName1), path.Join(vdirPath1, dir1, testFileName+".rename"))
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 1, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize1, user.UsedQuotaSize)
		f, _, err = httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)
		// rename a directory inside the same virtual folder, quota should not change
		err = client.RemoveDirectory(path.Join(vdirPath1, dir2))
		assert.NoError(t, err)
		err = client.RemoveDirectory(path.Join(vdirPath2, dir2))
		assert.NoError(t, err)
		err = client.Rename(path.Join(vdirPath1, dir1), path.Join(vdirPath1, dir2))
		assert.NoError(t, err)
		err = client.Rename(path.Join(vdirPath2, dir1), path.Join(vdirPath2, dir2))
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 1, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize1, user.UsedQuotaSize)
		f, _, err = httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)

		err = os.Remove(testFilePath)
		assert.NoError(t, err)
		err = os.Remove(testFilePath1)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName1}, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName2}, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath1)
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath2)
	assert.NoError(t, err)
}

func TestQuotaRenameBetweenVirtualFolder(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	u.QuotaFiles = 100
	mappedPath1 := filepath.Join(os.TempDir(), "vdir1")
	folderName1 := filepath.Base(mappedPath1)
	vdirPath1 := "/vdir1"
	mappedPath2 := filepath.Join(os.TempDir(), "vdir2")
	folderName2 := filepath.Base(mappedPath2)
	vdirPath2 := "/vdir2"
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName1,
			MappedPath: mappedPath1,
		},
		VirtualPath: vdirPath1,
		// quota is included in the user's one
		QuotaFiles: -1,
		QuotaSize:  -1,
	})
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName2,
			MappedPath: mappedPath2,
		},
		VirtualPath: vdirPath2,
		// quota is unlimited and excluded from user's one
		QuotaFiles: 0,
		QuotaSize:  0,
	})
	err := os.MkdirAll(mappedPath1, os.ModePerm)
	assert.NoError(t, err)
	err = os.MkdirAll(mappedPath2, os.ModePerm)
	assert.NoError(t, err)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFileName1 := "test_file1.dat"
		testFileSize := int64(131072)
		testFileSize1 := int64(65535)
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFilePath1 := filepath.Join(homeBasePath, testFileName1)
		dir1 := "dir1"
		dir2 := "dir2"
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = createTestFile(testFilePath1, testFileSize1)
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath1, dir1))
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath1, dir2))
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath2, dir1))
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath2, dir2))
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath1, dir1, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(vdirPath1, dir2, testFileName1), testFileSize1, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath2, dir1, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(vdirPath2, dir2, testFileName1), testFileSize1, client)
		assert.NoError(t, err)
		// initial files:
		// - vdir1/dir1/testFileName
		// - vdir1/dir2/testFileName1
		// - vdir2/dir1/testFileName
		// - vdir2/dir2/testFileName1
		//
		// rename a file from vdir1 to vdir2, vdir1 is included inside user quota, so we have:
		// - vdir1/dir1/testFileName
		// - vdir2/dir1/testFileName
		// - vdir2/dir2/testFileName1
		// - vdir2/dir1/testFileName1.rename
		err = client.Rename(path.Join(vdirPath1, dir2, testFileName1), path.Join(vdirPath2, dir1, testFileName1+".rename"))
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 1, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize, user.UsedQuotaSize)
		f, _, err := httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize+testFileSize1+testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 3, f.UsedQuotaFiles)
		// rename a file from vdir2 to vdir1, vdir2 is not included inside user quota, so we have:
		// - vdir1/dir1/testFileName
		// - vdir1/dir2/testFileName.rename
		// - vdir2/dir2/testFileName1
		// - vdir2/dir1/testFileName1.rename
		err = client.Rename(path.Join(vdirPath2, dir1, testFileName), path.Join(vdirPath1, dir2, testFileName+".rename"))
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 2, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize*2, user.UsedQuotaSize)
		f, _, err = httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize*2, f.UsedQuotaSize)
		assert.Equal(t, 2, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize1*2, f.UsedQuotaSize)
		assert.Equal(t, 2, f.UsedQuotaFiles)
		// rename a file from vdir1 to vdir2 overwriting an existing file, vdir1 is included inside user quota, so we have:
		// - vdir1/dir2/testFileName.rename
		// - vdir2/dir2/testFileName1 (is the initial testFileName)
		// - vdir2/dir1/testFileName1.rename
		err = client.Rename(path.Join(vdirPath1, dir1, testFileName), path.Join(vdirPath2, dir2, testFileName1))
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 1, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize, user.UsedQuotaSize)
		f, _, err = httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize1+testFileSize, f.UsedQuotaSize)
		assert.Equal(t, 2, f.UsedQuotaFiles)
		// rename a file from vdir2 to vdir1 overwriting an existing file, vdir2 is not included inside user quota, so we have:
		// - vdir1/dir2/testFileName.rename (is the initial testFileName1)
		// - vdir2/dir2/testFileName1 (is the initial testFileName)
		err = client.Rename(path.Join(vdirPath2, dir1, testFileName1+".rename"), path.Join(vdirPath1, dir2, testFileName+".rename"))
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 1, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize1, user.UsedQuotaSize)
		f, _, err = httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)

		err = sftpUploadFile(testFilePath, path.Join(vdirPath1, dir2, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(vdirPath2, dir2, testFileName), testFileSize1, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(vdirPath2, dir2, testFileName+"1.dupl"), testFileSize1, client)
		assert.NoError(t, err)
		err = client.RemoveDirectory(path.Join(vdirPath1, dir1))
		assert.NoError(t, err)
		err = client.RemoveDirectory(path.Join(vdirPath2, dir1))
		assert.NoError(t, err)
		// - vdir1/dir2/testFileName.rename (initial testFileName1)
		// - vdir1/dir2/testFileName
		// - vdir2/dir2/testFileName1 (initial testFileName)
		// - vdir2/dir2/testFileName (initial testFileName1)
		// - vdir2/dir2/testFileName1.dupl
		// rename directories between the two virtual folders
		err = client.Rename(path.Join(vdirPath2, dir2), path.Join(vdirPath1, dir1))
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 5, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize1*3+testFileSize*2, user.UsedQuotaSize)
		f, _, err = httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize1*3+testFileSize*2, f.UsedQuotaSize)
		assert.Equal(t, 5, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, int64(0), f.UsedQuotaSize)
		assert.Equal(t, 0, f.UsedQuotaFiles)
		// now move on vpath2
		err = client.Rename(path.Join(vdirPath1, dir2), path.Join(vdirPath2, dir1))
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 3, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize1*2+testFileSize, user.UsedQuotaSize)
		f, _, err = httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize1*2+testFileSize, f.UsedQuotaSize)
		assert.Equal(t, 3, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize+testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 2, f.UsedQuotaFiles)

		err = os.Remove(testFilePath)
		assert.NoError(t, err)
		err = os.Remove(testFilePath1)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName1}, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName2}, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath1)
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath2)
	assert.NoError(t, err)
}

func TestQuotaRenameFromVirtualFolder(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	u.QuotaFiles = 100
	mappedPath1 := filepath.Join(os.TempDir(), "vdir1")
	folderName1 := filepath.Base(mappedPath1)
	vdirPath1 := "/vdir1"
	mappedPath2 := filepath.Join(os.TempDir(), "vdir2")
	folderName2 := filepath.Base(mappedPath2)
	vdirPath2 := "/vdir2"
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName1,
			MappedPath: mappedPath1,
		},
		VirtualPath: vdirPath1,
		// quota is included in the user's one
		QuotaFiles: -1,
		QuotaSize:  -1,
	})
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName2,
			MappedPath: mappedPath2,
		},
		VirtualPath: vdirPath2,
		// quota is unlimited and excluded from user's one
		QuotaFiles: 0,
		QuotaSize:  0,
	})
	err := os.MkdirAll(mappedPath1, os.ModePerm)
	assert.NoError(t, err)
	err = os.MkdirAll(mappedPath2, os.ModePerm)
	assert.NoError(t, err)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFileName1 := "test_file1.dat"
		testFileSize := int64(131072)
		testFileSize1 := int64(65535)
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFilePath1 := filepath.Join(homeBasePath, testFileName1)
		dir1 := "dir1"
		dir2 := "dir2"
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = createTestFile(testFilePath1, testFileSize1)
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath1, dir1))
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath1, dir2))
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath2, dir1))
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath2, dir2))
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath1, dir1, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(vdirPath1, dir2, testFileName1), testFileSize1, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath2, dir1, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(vdirPath2, dir2, testFileName1), testFileSize1, client)
		assert.NoError(t, err)
		// initial files:
		// - vdir1/dir1/testFileName
		// - vdir1/dir2/testFileName1
		// - vdir2/dir1/testFileName
		// - vdir2/dir2/testFileName1
		//
		// rename a file from vdir1 to the user home dir, vdir1 is included in user quota so we have:
		// - testFileName
		// - vdir1/dir2/testFileName1
		// - vdir2/dir1/testFileName
		// - vdir2/dir2/testFileName1
		err = client.Rename(path.Join(vdirPath1, dir1, testFileName), path.Join(testFileName))
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 2, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize+testFileSize1, user.UsedQuotaSize)
		f, _, err := httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize+testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 2, f.UsedQuotaFiles)
		// rename a file from vdir2 to the user home dir, vdir2 is not included in user quota so we have:
		// - testFileName
		// - testFileName1
		// - vdir1/dir2/testFileName1
		// - vdir2/dir1/testFileName
		err = client.Rename(path.Join(vdirPath2, dir2, testFileName1), path.Join(testFileName1))
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 3, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize+testFileSize1+testFileSize1, user.UsedQuotaSize)
		f, _, err = httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)
		// rename a file from vdir1 to the user home dir overwriting an existing file, vdir1 is included in user quota so we have:
		// - testFileName (initial testFileName1)
		// - testFileName1
		// - vdir2/dir1/testFileName
		err = client.Rename(path.Join(vdirPath1, dir2, testFileName1), path.Join(testFileName))
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 2, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize1+testFileSize1, user.UsedQuotaSize)
		f, _, err = httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, int64(0), f.UsedQuotaSize)
		assert.Equal(t, 0, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)
		// rename a file from vdir2 to the user home dir overwriting an existing file, vdir2 is not included in user quota so we have:
		// - testFileName (initial testFileName1)
		// - testFileName1 (initial testFileName)
		err = client.Rename(path.Join(vdirPath2, dir1, testFileName), path.Join(testFileName1))
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 2, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize+testFileSize1, user.UsedQuotaSize)
		f, _, err = httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, int64(0), f.UsedQuotaSize)
		assert.Equal(t, 0, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, int64(0), f.UsedQuotaSize)
		assert.Equal(t, 0, f.UsedQuotaFiles)
		// dir rename
		err = sftpUploadFile(testFilePath, path.Join(vdirPath1, dir1, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(vdirPath1, dir1, testFileName1), testFileSize1, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath2, dir1, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(vdirPath2, dir1, testFileName1), testFileSize1, client)
		assert.NoError(t, err)
		// - testFileName (initial testFileName1)
		// - testFileName1 (initial testFileName)
		// - vdir1/dir1/testFileName
		// - vdir1/dir1/testFileName1
		// - dir1/testFileName
		// - dir1/testFileName1
		err = client.Rename(path.Join(vdirPath2, dir1), dir1)
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 6, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize*3+testFileSize1*3, user.UsedQuotaSize)
		f, _, err = httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize+testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 2, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, int64(0), f.UsedQuotaSize)
		assert.Equal(t, 0, f.UsedQuotaFiles)
		// - testFileName (initial testFileName1)
		// - testFileName1 (initial testFileName)
		// - dir2/testFileName
		// - dir2/testFileName1
		// - dir1/testFileName
		// - dir1/testFileName1
		err = client.Rename(path.Join(vdirPath1, dir1), dir2)
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 6, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize*3+testFileSize1*3, user.UsedQuotaSize)
		f, _, err = httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, int64(0), f.UsedQuotaSize)
		assert.Equal(t, 0, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, int64(0), f.UsedQuotaSize)
		assert.Equal(t, 0, f.UsedQuotaFiles)

		err = os.Remove(testFilePath)
		assert.NoError(t, err)
		err = os.Remove(testFilePath1)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName1}, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName2}, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath1)
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath2)
	assert.NoError(t, err)
}

func TestQuotaRenameToVirtualFolder(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	u.QuotaFiles = 100
	mappedPath1 := filepath.Join(os.TempDir(), "vdir1")
	folderName1 := filepath.Base(mappedPath1)
	vdirPath1 := "/vdir1"
	mappedPath2 := filepath.Join(os.TempDir(), "vdir2")
	folderName2 := filepath.Base(mappedPath2)
	vdirPath2 := "/vdir2"
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName1,
			MappedPath: mappedPath1,
		},
		VirtualPath: vdirPath1,
		// quota is included in the user's one
		QuotaFiles: -1,
		QuotaSize:  -1,
	})
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName2,
			MappedPath: mappedPath2,
		},
		VirtualPath: vdirPath2,
		// quota is unlimited and excluded from user's one
		QuotaFiles: 0,
		QuotaSize:  0,
	})
	err := os.MkdirAll(mappedPath1, os.ModePerm)
	assert.NoError(t, err)
	err = os.MkdirAll(mappedPath2, os.ModePerm)
	assert.NoError(t, err)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFileName1 := "test_file1.dat"
		testFileSize := int64(131072)
		testFileSize1 := int64(65535)
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFilePath1 := filepath.Join(homeBasePath, testFileName1)
		dir1 := "dir1"
		dir2 := "dir2"
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = createTestFile(testFilePath1, testFileSize1)
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath1, dir1))
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath1, dir2))
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath2, dir1))
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath2, dir2))
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, testFileName1, testFileSize1, client)
		assert.NoError(t, err)
		// initial files:
		// - testFileName
		// - testFileName1
		//
		// rename a file from user home dir to vdir1, vdir1 is included in user quota so we have:
		// - testFileName
		// - /vdir1/dir1/testFileName1
		err = client.Rename(testFileName1, path.Join(vdirPath1, dir1, testFileName1))
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 2, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize+testFileSize1, user.UsedQuotaSize)
		f, _, err := httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)
		// rename a file from user home dir to vdir2, vdir2 is not included in user quota so we have:
		// - /vdir2/dir1/testFileName
		// - /vdir1/dir1/testFileName1
		err = client.Rename(testFileName, path.Join(vdirPath2, dir1, testFileName))
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 1, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize1, user.UsedQuotaSize)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)
		// upload two new files to the user home dir so we have:
		// - testFileName
		// - testFileName1
		// - /vdir1/dir1/testFileName1
		// - /vdir2/dir1/testFileName
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, testFileName1, testFileSize1, client)
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 3, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize+testFileSize1+testFileSize1, user.UsedQuotaSize)
		// rename a file from user home dir to vdir1 overwriting an existing file, vdir1 is included in user quota so we have:
		// - testFileName1
		// - /vdir1/dir1/testFileName1 (initial testFileName)
		// - /vdir2/dir1/testFileName
		err = client.Rename(testFileName, path.Join(vdirPath1, dir1, testFileName1))
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 2, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize+testFileSize1, user.UsedQuotaSize)
		f, _, err = httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)
		// rename a file from user home dir to vdir2 overwriting an existing file, vdir2 is not included in user quota so we have:
		// - /vdir1/dir1/testFileName1 (initial testFileName)
		// - /vdir2/dir1/testFileName (initial testFileName1)
		err = client.Rename(testFileName1, path.Join(vdirPath2, dir1, testFileName))
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 1, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize, user.UsedQuotaSize)
		f, _, err = httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)

		err = client.Mkdir(dir1)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(dir1, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(dir1, testFileName1), testFileSize1, client)
		assert.NoError(t, err)
		// - /dir1/testFileName
		// - /dir1/testFileName1
		// - /vdir1/dir1/testFileName1 (initial testFileName)
		// - /vdir2/dir1/testFileName (initial testFileName1)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 3, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize*2+testFileSize1, user.UsedQuotaSize)
		f, _, err = httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)
		// - /vdir1/adir/testFileName
		// - /vdir1/adir/testFileName1
		// - /vdir1/dir1/testFileName1 (initial testFileName)
		// - /vdir2/dir1/testFileName (initial testFileName1)
		err = client.Rename(dir1, path.Join(vdirPath1, "adir"))
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 3, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize*2+testFileSize1, user.UsedQuotaSize)
		f, _, err = httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize*2+testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 3, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)
		err = client.Mkdir(dir1)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(dir1, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(dir1, testFileName1), testFileSize1, client)
		assert.NoError(t, err)
		// - /vdir1/adir/testFileName
		// - /vdir1/adir/testFileName1
		// - /vdir1/dir1/testFileName1 (initial testFileName)
		// - /vdir2/dir1/testFileName (initial testFileName1)
		// - /vdir2/adir/testFileName
		// - /vdir2/adir/testFileName1
		err = client.Rename(dir1, path.Join(vdirPath2, "adir"))
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 3, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize*2+testFileSize1, user.UsedQuotaSize)
		f, _, err = httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize*2+testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 3, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize1*2+testFileSize, f.UsedQuotaSize)
		assert.Equal(t, 3, f.UsedQuotaFiles)

		err = os.Remove(testFilePath)
		assert.NoError(t, err)
		err = os.Remove(testFilePath1)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName1}, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName2}, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath1)
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath2)
	assert.NoError(t, err)
}

func TestVirtualFoldersLink(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	mappedPath1 := filepath.Join(os.TempDir(), "vdir1")
	folderName1 := filepath.Base(mappedPath1)
	vdirPath1 := "/vdir1"
	mappedPath2 := filepath.Join(os.TempDir(), "vdir2")
	folderName2 := filepath.Base(mappedPath2)
	vdirPath2 := "/vdir2"
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName1,
			MappedPath: mappedPath1,
		},
		VirtualPath: vdirPath1,
		// quota is included in the user's one
		QuotaFiles: -1,
		QuotaSize:  -1,
	})
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName2,
			MappedPath: mappedPath2,
		},
		VirtualPath: vdirPath2,
		// quota is unlimited and excluded from user's one
		QuotaFiles: 0,
		QuotaSize:  0,
	})
	err := os.MkdirAll(mappedPath1, os.ModePerm)
	assert.NoError(t, err)
	err = os.MkdirAll(mappedPath2, os.ModePerm)
	assert.NoError(t, err)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFileSize := int64(131072)
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testDir := "adir"
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath1, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath2, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath1, testDir))
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath2, testDir))
		assert.NoError(t, err)
		err = client.Symlink(testFileName, testFileName+".link")
		assert.NoError(t, err)
		err = client.Symlink(path.Join(vdirPath1, testFileName), path.Join(vdirPath1, testFileName+".link"))
		assert.NoError(t, err)
		err = client.Symlink(path.Join(vdirPath1, testFileName), path.Join(vdirPath1, testDir, testFileName+".link"))
		assert.NoError(t, err)
		err = client.Symlink(path.Join(vdirPath2, testFileName), path.Join(vdirPath2, testFileName+".link"))
		assert.NoError(t, err)
		err = client.Symlink(path.Join(vdirPath2, testFileName), path.Join(vdirPath2, testDir, testFileName+".link"))
		assert.NoError(t, err)
		err = client.Symlink(testFileName, path.Join(vdirPath1, testFileName+".link1"))
		assert.Error(t, err)
		err = client.Symlink(testFileName, path.Join(vdirPath1, testDir, testFileName+".link1"))
		assert.Error(t, err)
		err = client.Symlink(testFileName, path.Join(vdirPath2, testFileName+".link1"))
		assert.Error(t, err)
		err = client.Symlink(testFileName, path.Join(vdirPath2, testDir, testFileName+".link1"))
		assert.Error(t, err)
		err = client.Symlink(path.Join(vdirPath1, testFileName), testFileName+".link1")
		assert.Error(t, err)
		err = client.Symlink(path.Join(vdirPath2, testFileName), testFileName+".link1")
		assert.Error(t, err)
		err = client.Symlink(path.Join(vdirPath1, testFileName), path.Join(vdirPath2, testDir, testFileName+".link1"))
		assert.Error(t, err)
		err = client.Symlink(path.Join(vdirPath2, testFileName), path.Join(vdirPath1, testFileName+".link1"))
		assert.Error(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName1}, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName2}, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath1)
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath2)
	assert.NoError(t, err)
}

func TestVirtualFolderQuotaScan(t *testing.T) {
	mappedPath := filepath.Join(os.TempDir(), "mapped_dir")
	folderName := filepath.Base(mappedPath)
	err := os.MkdirAll(mappedPath, os.ModePerm)
	assert.NoError(t, err)
	testFileSize := int64(65535)
	testFilePath := filepath.Join(mappedPath, testFileName)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	expectedQuotaSize := testFileSize
	expectedQuotaFiles := 1
	folder, _, err := httpdtest.AddFolder(vfs.BaseVirtualFolder{
		Name:       folderName,
		MappedPath: mappedPath,
	}, http.StatusCreated)
	assert.NoError(t, err)
	_, err = httpdtest.StartFolderQuotaScan(folder, http.StatusAccepted)
	assert.NoError(t, err)
	assert.Eventually(t, func() bool {
		scans, _, err := httpdtest.GetFoldersQuotaScans(http.StatusOK)
		if err == nil {
			return len(scans) == 0
		}
		return false
	}, 1*time.Second, 50*time.Millisecond)
	folder, _, err = httpdtest.GetFolderByName(folderName, http.StatusOK)
	assert.NoError(t, err)
	assert.Equal(t, expectedQuotaFiles, folder.UsedQuotaFiles)
	assert.Equal(t, expectedQuotaSize, folder.UsedQuotaSize)
	_, err = httpdtest.RemoveFolder(folder, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath)
	assert.NoError(t, err)
}

func TestVFolderMultipleQuotaScan(t *testing.T) {
	folderName := "folder_name"
	res := common.QuotaScans.AddVFolderQuotaScan(folderName)
	assert.True(t, res)
	res = common.QuotaScans.AddVFolderQuotaScan(folderName)
	assert.False(t, res)
	res = common.QuotaScans.RemoveVFolderQuotaScan(folderName)
	assert.True(t, res)
	activeScans := common.QuotaScans.GetVFoldersQuotaScans()
	assert.Len(t, activeScans, 0)
	res = common.QuotaScans.RemoveVFolderQuotaScan(folderName)
	assert.False(t, res)
}

func TestVFolderQuotaSize(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	testFileSize := int64(131072)
	u.QuotaFiles = 1
	u.QuotaSize = testFileSize + 1
	mappedPath1 := filepath.Join(os.TempDir(), "vdir1")
	folderName1 := filepath.Base(mappedPath1)
	vdirPath1 := "/vpath1"
	mappedPath2 := filepath.Join(os.TempDir(), "vdir2")
	folderName2 := filepath.Base(mappedPath2)
	vdirPath2 := "/vpath2"
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName1,
			MappedPath: mappedPath1,
		},
		VirtualPath: vdirPath1,
		// quota is included in the user's one
		QuotaFiles: -1,
		QuotaSize:  -1,
	})
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName2,
			MappedPath: mappedPath2,
		},
		VirtualPath: vdirPath2,
		QuotaFiles:  1,
		QuotaSize:   testFileSize * 2,
	})
	err := os.MkdirAll(mappedPath1, os.ModePerm)
	assert.NoError(t, err)
	err = os.MkdirAll(mappedPath2, os.ModePerm)
	assert.NoError(t, err)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		// vdir1 is included in the user quota so upload must fail
		err = sftpUploadFile(testFilePath, path.Join(vdirPath1, testFileName), testFileSize, client)
		assert.Error(t, err)
		// upload to vdir2 must work, it has its own quota
		err = sftpUploadFile(testFilePath, path.Join(vdirPath2, testFileName), testFileSize, client)
		assert.NoError(t, err)
		// now vdir2 is over quota
		err = sftpUploadFile(testFilePath, path.Join(vdirPath2, testFileName+".quota"), testFileSize, client)
		assert.Error(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 1, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize, user.UsedQuotaSize)
		// remove a file
		err = client.Remove(testFileName)
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 0, user.UsedQuotaFiles)
		assert.Equal(t, int64(0), user.UsedQuotaSize)
		// upload to vdir1 must work now
		err = sftpUploadFile(testFilePath, path.Join(vdirPath1, testFileName), testFileSize, client)
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 1, user.UsedQuotaFiles)
		assert.Equal(t, testFileSize, user.UsedQuotaSize)

		f, _, err := httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize, f.UsedQuotaSize)
		assert.Equal(t, 1, f.UsedQuotaFiles)
	}
	// now create another user with the same shared folder but a different quota limit
	u.Username = defaultUsername + "1"
	u.VirtualFolders = nil
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName2,
			MappedPath: mappedPath2,
		},
		VirtualPath: vdirPath2,
		QuotaFiles:  10,
		QuotaSize:   testFileSize*2 + 1,
	})
	user1, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err = getSftpClient(user1, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = sftpUploadFile(testFilePath, path.Join(vdirPath2, testFileName+".quota"), testFileSize, client)
		assert.NoError(t, err)
		// the folder is now over quota for size but not for files
		err = sftpUploadFile(testFilePath, path.Join(vdirPath2, testFileName+".quota1"), testFileSize, client)
		assert.Error(t, err)
	}

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user1, http.StatusOK)
	assert.NoError(t, err)

	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName1}, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName2}, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath1)
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath2)
	assert.NoError(t, err)
}

func TestMissingFile(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		localDownloadPath := filepath.Join(homeBasePath, testDLFileName)
		err = sftpDownloadFile("missing_file", localDownloadPath, 0, client)
		assert.Error(t, err, "download missing file must fail")
		err = os.Remove(localDownloadPath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestOpenError(t *testing.T) {
	if runtime.GOOS == osWindows {
		t.Skip("this test is not available on Windows")
	}
	usePubKey := false
	u := getTestUser(usePubKey)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = os.Chmod(user.GetHomeDir(), 0001)
		assert.NoError(t, err)
		_, err = client.ReadDir(".")
		assert.Error(t, err, "read dir must fail if we have no filesystem read permissions")
		err = os.Chmod(user.GetHomeDir(), os.ModePerm)
		assert.NoError(t, err)
		testFileSize := int64(65535)
		testFilePath := filepath.Join(user.GetHomeDir(), testFileName)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		_, err = client.Stat(testFileName)
		assert.NoError(t, err)
		localDownloadPath := filepath.Join(homeBasePath, testDLFileName)
		err = sftpDownloadFile(testFileName, localDownloadPath, testFileSize, client)
		assert.NoError(t, err)
		err = os.Chmod(testFilePath, 0001)
		assert.NoError(t, err)
		err = sftpDownloadFile(testFileName, localDownloadPath, testFileSize, client)
		assert.Error(t, err, "file download must fail if we have no filesystem read permissions")
		err = sftpUploadFile(localDownloadPath, testFileName, testFileSize, client)
		assert.Error(t, err, "upload must fail if we have no filesystem write permissions")
		testDir := "test"
		err = client.Mkdir(testDir)
		assert.NoError(t, err)
		err = createTestFile(filepath.Join(user.GetHomeDir(), testDir, testFileName), testFileSize)
		assert.NoError(t, err)
		err = os.Chmod(user.GetHomeDir(), 0000)
		assert.NoError(t, err)
		_, err = client.Lstat(testFileName)
		assert.Error(t, err, "file stat must fail if we have no filesystem read permissions")
		err = sftpUploadFile(localDownloadPath, path.Join(testDir, testFileName), testFileSize, client)
		assert.ErrorIs(t, err, os.ErrPermission)
		_, err = client.ReadLink(testFileName)
		assert.ErrorIs(t, err, os.ErrPermission)
		err = client.Remove(testFileName)
		assert.ErrorIs(t, err, os.ErrPermission)
		err = os.Chmod(user.GetHomeDir(), os.ModePerm)
		assert.NoError(t, err)
		err = os.Chmod(filepath.Join(user.GetHomeDir(), testDir), 0000)
		assert.NoError(t, err)
		err = client.Rename(testFileName, path.Join(testDir, testFileName))
		assert.True(t, errors.Is(err, fs.ErrPermission))
		err = os.Chmod(filepath.Join(user.GetHomeDir(), testDir), os.ModePerm)
		assert.NoError(t, err)
		err = os.Remove(localDownloadPath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestOverwriteDirWithFile(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFileSize := int64(65535)
		testDirName := "test_dir" //nolint:goconst
		testFilePath := filepath.Join(homeBasePath, testFileName)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = client.Mkdir(testDirName)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testDirName, testFileSize, client)
		assert.Error(t, err, "copying a file over an existing dir must fail")
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = client.Rename(testFileName, testDirName)
		assert.Error(t, err, "rename a file over an existing dir must fail")
		err = client.RemoveDirectory(testDirName)
		assert.NoError(t, err)
		err = client.Remove(testFileName)
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestHashedPasswords(t *testing.T) {
	usePubKey := false
	plainPwd := "password"
	pwdMapping := make(map[string]string)
	pwdMapping["$argon2id$v=19$m=65536,t=3,p=2$xtcO/oRkC8O2Tn+mryl2mw$O7bn24f2kuSGRMi9s5Cm61Wqd810px1jDsAasrGWkzQ"] = plainPwd
	pwdMapping["$pbkdf2-sha1$150000$DveVjgYUD05R$X6ydQZdyMeOvpgND2nqGR/0GGic="] = plainPwd
	pwdMapping["$pbkdf2-sha256$150000$E86a9YMX3zC7$R5J62hsSq+pYw00hLLPKBbcGXmq7fj5+/M0IFoYtZbo="] = plainPwd
	pwdMapping["$pbkdf2-sha512$150000$dsu7T5R3IaVQ$1hFXPO1ntRBcoWkSLKw+s4sAP09Xtu4Ya7CyxFq64jM9zdUg8eRJVr3NcR2vQgb0W9HHvZaILHsL4Q/Vr6arCg=="] = plainPwd
	pwdMapping["$1$b5caebda$VODr/nyhGWgZaY8sJ4x05."] = plainPwd
	pwdMapping["$2a$14$ajq8Q7fbtFRQvXpdCq7Jcuy.Rx1h/L4J60Otx.gyNLbAYctGMJ9tK"] = "secret"
	pwdMapping["$6$459ead56b72e44bc$uog86fUxscjt28BZxqFBE2pp2QD8P/1e98MNF75Z9xJfQvOckZnQ/1YJqiq1XeytPuDieHZvDAMoP7352ELkO1"] = "secret"
	pwdMapping["$apr1$OBWLeSme$WoJbB736e7kKxMBIAqilb1"] = plainPwd
	pwdMapping["{MD5}5f4dcc3b5aa765d61d8327deb882cf99"] = plainPwd

	for pwd, clearPwd := range pwdMapping {
		u := getTestUser(usePubKey)
		u.Password = pwd
		user, _, err := httpdtest.AddUser(u, http.StatusCreated)
		assert.NoError(t, err)
		user.Password = ""
		userGetInitial, _, err := httpdtest.UpdateUser(user, http.StatusOK, "")
		assert.NoError(t, err)
		user, err = dataprovider.UserExists(user.Username)
		assert.NoError(t, err)
		assert.Equal(t, pwd, user.Password)
		user.Password = clearPwd
		conn, client, err := getSftpClient(user, usePubKey)
		if assert.NoError(t, err, "unable to login with password %#v", pwd) {
			assert.NoError(t, checkBasicSFTP(client))
			conn.Close()
			client.Close()
		}
		user.Password = pwd
		conn, client, err = getSftpClient(user, usePubKey)
		if !assert.Error(t, err, "login with wrong password must fail") {
			client.Close()
			conn.Close()
		}
		// the password must converted to bcrypt and we should still be able to login
		user, err = dataprovider.UserExists(user.Username)
		assert.NoError(t, err)
		assert.True(t, strings.HasPrefix(user.Password, "$2a$"))
		// update the user to invalidate the cached password and force a new check
		user.Password = ""
		userGet, _, err := httpdtest.UpdateUser(user, http.StatusOK, "")
		assert.NoError(t, err)
		userGetInitial.LastLogin = userGet.LastLogin
		userGetInitial.UpdatedAt = userGet.UpdatedAt
		assert.Equal(t, userGetInitial, userGet)
		// login should still work
		user.Password = clearPwd
		conn, client, err = getSftpClient(user, usePubKey)
		if assert.NoError(t, err, "unable to login with password %#v", pwd) {
			assert.NoError(t, checkBasicSFTP(client))
			conn.Close()
			client.Close()
		}
		_, err = httpdtest.RemoveUser(user, http.StatusOK)
		assert.NoError(t, err)
		err = os.RemoveAll(user.GetHomeDir())
		assert.NoError(t, err)
	}
}

func TestPasswordsHashPbkdf2Sha256_389DS(t *testing.T) {
	pbkdf389dsPwd := "{PBKDF2_SHA256}AAAIAMZIKG4ie44zJY4HOXI+upFR74PzWLUQV63jg+zzkbEjCK3N4qW583WF7EdcpeoOMQ4HY3aWEXB6lnXhXJixbJkU4vVSJkL6YCbU3TrD0qn1uUUVSkaIgAOtmZENitwbhYhiWfEzGyAtFqkFd75P5xhWJEog9XhQKYrR0f7S3WGGZq03JRcLJ460xpU97bE/sWRn7sshgkWzLuyrs0I+XRKmK7FJeaA9zd+1m44Y3IVmZ2YLdKATzjRHAIgpBC6i1TWOcpKJT1+feP1C9hrxH8vU9baw9thNiO8jSHaZlwb//KpJFe0ahVnG/1ubiG8cO0+CCqDqXVJR6Vr4QZxHP+4pwooW+4TP/L+HFdyA1y6z4gKfqYnBsmb3sD1R1TbxfH4btTdvgZAnBk9CmR3QASkFXxeTYsrmNd5+9IAHc6dm"
	pbkdf389dsPwd = pbkdf389dsPwd[15:]
	hashBytes, err := base64.StdEncoding.DecodeString(pbkdf389dsPwd)
	assert.NoError(t, err)
	iterBytes := hashBytes[0:4]
	var iterations int32
	err = binary.Read(bytes.NewBuffer(iterBytes), binary.BigEndian, &iterations)
	assert.NoError(t, err)
	salt := hashBytes[4:68]
	targetKey := hashBytes[68:]
	key := base64.StdEncoding.EncodeToString(targetKey)
	pbkdf2Pwd := fmt.Sprintf("$pbkdf2-b64salt-sha256$%v$%v$%v", iterations, base64.StdEncoding.EncodeToString(salt), key)
	pbkdf2ClearPwd := "password"
	usePubKey := false
	u := getTestUser(usePubKey)
	u.Password = pbkdf2Pwd
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	user.Password = pbkdf2ClearPwd
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		assert.NoError(t, checkBasicSFTP(client))
	}
	user.Password = pbkdf2Pwd
	conn, client, err = getSftpClient(user, usePubKey)
	if !assert.Error(t, err, "login with wrong password must fail") {
		client.Close()
		conn.Close()
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestPermList(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermDownload, dataprovider.PermUpload, dataprovider.PermDelete, dataprovider.PermRename,
		dataprovider.PermCreateDirs, dataprovider.PermCreateSymlinks, dataprovider.PermOverwrite, dataprovider.PermChmod,
		dataprovider.PermChown, dataprovider.PermChtimes}
	u.Permissions["/sub"] = []string{dataprovider.PermCreateSymlinks, dataprovider.PermListItems}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		_, err = client.ReadDir(".")
		assert.ErrorIs(t, err, os.ErrPermission, "read remote dir without permission should not succeed")
		_, err = client.Stat("test_file")
		assert.ErrorIs(t, err, os.ErrPermission, "stat remote file without permission should not succeed")
		_, err = client.Lstat("test_file")
		assert.ErrorIs(t, err, os.ErrPermission, "lstat remote file without permission should not succeed")
		_, err = client.ReadLink("test_link")
		assert.ErrorIs(t, err, os.ErrPermission, "read remote link without permission on source dir should not succeed")
		_, err = client.RealPath(".")
		assert.ErrorIs(t, err, os.ErrPermission, "real path without permission should not succeed")
		f, err := client.Create(testFileName)
		if assert.NoError(t, err) {
			_, err = f.Write([]byte("content"))
			assert.NoError(t, err)
			err = f.Close()
			assert.NoError(t, err)
		}
		err = client.Mkdir("sub")
		assert.NoError(t, err)
		err = client.Symlink(testFileName, path.Join("/sub", testFileName))
		assert.NoError(t, err)
		_, err = client.ReadLink(path.Join("/sub", testFileName))
		assert.Error(t, err, "read remote link without permission on targe dir should not succeed")
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestPermDownload(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermListItems, dataprovider.PermUpload, dataprovider.PermDelete, dataprovider.PermRename,
		dataprovider.PermCreateDirs, dataprovider.PermCreateSymlinks, dataprovider.PermOverwrite, dataprovider.PermChmod,
		dataprovider.PermChown, dataprovider.PermChtimes}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFileSize := int64(65535)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		localDownloadPath := filepath.Join(homeBasePath, testDLFileName)
		err = sftpDownloadFile(testFileName, localDownloadPath, testFileSize, client)
		assert.Error(t, err, "file download without permission should not succeed")
		err = client.Remove(testFileName)
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
		err = os.Remove(localDownloadPath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestPermUpload(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermListItems, dataprovider.PermDownload, dataprovider.PermDelete, dataprovider.PermRename,
		dataprovider.PermCreateDirs, dataprovider.PermCreateSymlinks, dataprovider.PermOverwrite, dataprovider.PermChmod,
		dataprovider.PermChown, dataprovider.PermChtimes}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFileSize := int64(65535)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.Error(t, err, "file upload without permission should not succeed")
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestPermOverwrite(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermListItems, dataprovider.PermDownload, dataprovider.PermUpload, dataprovider.PermDelete,
		dataprovider.PermRename, dataprovider.PermCreateDirs, dataprovider.PermCreateSymlinks, dataprovider.PermChmod,
		dataprovider.PermChown, dataprovider.PermChtimes}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFileSize := int64(65535)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.Error(t, err, "file overwrite without permission should not succeed")
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestPermDelete(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermListItems, dataprovider.PermDownload, dataprovider.PermUpload, dataprovider.PermRename,
		dataprovider.PermCreateDirs, dataprovider.PermCreateSymlinks, dataprovider.PermOverwrite, dataprovider.PermChmod,
		dataprovider.PermChown, dataprovider.PermChtimes}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFileSize := int64(65535)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = client.Remove(testFileName)
		assert.Error(t, err, "delete without permission should not succeed")
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

//nolint:dupl
func TestPermRename(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermListItems, dataprovider.PermDownload, dataprovider.PermUpload,
		dataprovider.PermCreateDirs, dataprovider.PermCreateSymlinks, dataprovider.PermOverwrite, dataprovider.PermChmod,
		dataprovider.PermChown, dataprovider.PermChtimes}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFileSize := int64(65535)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = client.Rename(testFileName, testFileName+".rename")
		assert.True(t, errors.Is(err, fs.ErrPermission))
		_, err = client.Stat(testFileName)
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

//nolint:dupl
func TestPermRenameOverwrite(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermListItems, dataprovider.PermDownload, dataprovider.PermUpload, dataprovider.PermDelete,
		dataprovider.PermCreateDirs, dataprovider.PermCreateSymlinks, dataprovider.PermChmod, dataprovider.PermRename,
		dataprovider.PermChown, dataprovider.PermChtimes}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFileSize := int64(65535)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = client.Rename(testFileName, testFileName+".rename")
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = client.Rename(testFileName, testFileName+".rename")
		assert.True(t, errors.Is(err, fs.ErrPermission))
		err = client.Remove(testFileName)
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestPermCreateDirs(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermListItems, dataprovider.PermDownload, dataprovider.PermUpload, dataprovider.PermDelete,
		dataprovider.PermRename, dataprovider.PermCreateSymlinks, dataprovider.PermOverwrite, dataprovider.PermChmod,
		dataprovider.PermChown, dataprovider.PermChtimes}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = client.Mkdir("testdir")
		assert.Error(t, err, "mkdir without permission should not succeed")
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

//nolint:dupl
func TestPermSymlink(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermListItems, dataprovider.PermDownload, dataprovider.PermUpload, dataprovider.PermDelete,
		dataprovider.PermRename, dataprovider.PermCreateDirs, dataprovider.PermOverwrite, dataprovider.PermChmod, dataprovider.PermChown,
		dataprovider.PermChtimes}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFileSize := int64(65535)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = client.Symlink(testFilePath, testFilePath+".symlink")
		assert.Error(t, err, "symlink without permission should not succeed")
		err = client.Remove(testFileName)
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestPermChmod(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermListItems, dataprovider.PermDownload, dataprovider.PermUpload, dataprovider.PermDelete,
		dataprovider.PermRename, dataprovider.PermCreateDirs, dataprovider.PermCreateSymlinks, dataprovider.PermOverwrite,
		dataprovider.PermChown, dataprovider.PermChtimes}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFileSize := int64(65535)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = client.Chmod(testFileName, os.ModePerm)
		assert.Error(t, err, "chmod without permission should not succeed")
		err = client.Remove(testFileName)
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

//nolint:dupl
func TestPermChown(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermListItems, dataprovider.PermDownload, dataprovider.PermUpload, dataprovider.PermDelete,
		dataprovider.PermRename, dataprovider.PermCreateDirs, dataprovider.PermCreateSymlinks, dataprovider.PermOverwrite,
		dataprovider.PermChmod, dataprovider.PermChtimes}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFileSize := int64(65535)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = client.Chown(testFileName, os.Getuid(), os.Getgid())
		assert.Error(t, err, "chown without permission should not succeed")
		err = client.Remove(testFileName)
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

//nolint:dupl
func TestPermChtimes(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermListItems, dataprovider.PermDownload, dataprovider.PermUpload, dataprovider.PermDelete,
		dataprovider.PermRename, dataprovider.PermCreateDirs, dataprovider.PermCreateSymlinks, dataprovider.PermOverwrite,
		dataprovider.PermChmod, dataprovider.PermChown}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFileSize := int64(65535)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = client.Chtimes(testFileName, time.Now(), time.Now())
		assert.Error(t, err, "chtimes without permission should not succeed")
		err = client.Remove(testFileName)
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestSubDirsUploads(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermAny}
	u.Permissions["/subdir"] = []string{dataprovider.PermChtimes, dataprovider.PermDownload, dataprovider.PermOverwrite}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = client.Mkdir("subdir")
		assert.NoError(t, err)
		testFileNameSub := "/subdir/test_file_dat"
		testSubFile := filepath.Join(user.GetHomeDir(), "subdir", "file.dat")
		testDir := "testdir"
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFileSize := int64(65535)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = createTestFile(testSubFile, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileNameSub, testFileSize, client)
		assert.True(t, errors.Is(err, fs.ErrPermission))
		err = client.Symlink(testFileName, testFileNameSub+".link")
		assert.True(t, errors.Is(err, fs.ErrPermission))
		err = client.Symlink(testFileName, testFileName+".link")
		assert.NoError(t, err)
		err = client.Rename(testFileName, testFileNameSub+".rename")
		assert.True(t, errors.Is(err, fs.ErrPermission))
		err = client.Rename(testFileName, testFileName+".rename")
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		// rename overwriting an existing file
		err = client.Rename(testFileName, testFileName+".rename")
		assert.NoError(t, err)
		// now try to overwrite a directory
		err = client.Mkdir(testDir)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = client.Rename(testFileName, testDir)
		assert.Error(t, err)
		err = client.Remove(testFileName)
		assert.NoError(t, err)
		err = client.Remove(testDir)
		assert.NoError(t, err)
		err = client.Remove(path.Join("/subdir", "file.dat"))
		assert.True(t, errors.Is(err, fs.ErrPermission))
		err = client.Remove(testFileName + ".rename")
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestSubDirsOverwrite(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermAny}
	u.Permissions["/subdir"] = []string{dataprovider.PermOverwrite, dataprovider.PermListItems}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFileName := "/subdir/test_file.dat" //nolint:goconst
		testFilePath := filepath.Join(homeBasePath, "test_file.dat")
		testFileSFTPPath := filepath.Join(u.GetHomeDir(), "subdir", "test_file.dat")
		testFileSize := int64(65535)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = createTestFile(testFileSFTPPath, 16384)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName+".new", testFileSize, client)
		assert.True(t, errors.Is(err, fs.ErrPermission))
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestSubDirsDownloads(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermAny}
	u.Permissions["/subdir"] = []string{dataprovider.PermChmod, dataprovider.PermUpload, dataprovider.PermListItems}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = client.Mkdir("subdir")
		assert.NoError(t, err)
		testFileName := "/subdir/test_file.dat"
		testFilePath := filepath.Join(homeBasePath, "test_file.dat")
		testFileSize := int64(65535)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		localDownloadPath := filepath.Join(homeBasePath, testDLFileName)
		err = sftpDownloadFile(testFileName, localDownloadPath, testFileSize, client)
		assert.True(t, errors.Is(err, fs.ErrPermission))
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.True(t, errors.Is(err, fs.ErrPermission))
		err = client.Chtimes(testFileName, time.Now(), time.Now())
		assert.True(t, errors.Is(err, fs.ErrPermission))
		err = client.Rename(testFileName, testFileName+".rename")
		assert.True(t, errors.Is(err, fs.ErrPermission))
		err = client.Symlink(testFileName, testFileName+".link")
		assert.True(t, errors.Is(err, fs.ErrPermission))
		err = client.Remove(testFileName)
		assert.True(t, errors.Is(err, fs.ErrPermission))
		err = os.Remove(localDownloadPath)
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestPermsSubDirsSetstat(t *testing.T) {
	// for setstat we check the parent dir permission if the requested path is a dir
	// otherwise the path permission
	usePubKey := true
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermListItems, dataprovider.PermCreateDirs}
	u.Permissions["/subdir"] = []string{dataprovider.PermAny}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = client.Mkdir("subdir")
		assert.NoError(t, err)
		testFileName := "/subdir/test_file.dat"
		testFilePath := filepath.Join(homeBasePath, "test_file.dat")
		testFileSize := int64(65535)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = client.Chtimes("/subdir/", time.Now(), time.Now())
		assert.True(t, errors.Is(err, fs.ErrPermission))
		err = client.Chtimes("subdir/", time.Now(), time.Now())
		assert.True(t, errors.Is(err, fs.ErrPermission))
		err = client.Chtimes(testFileName, time.Now(), time.Now())
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestOpenUnhandledChannel(t *testing.T) {
	u := getTestUser(false)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)

	config := &ssh.ClientConfig{
		User: user.Username,
		HostKeyCallback: func(hostname string, remote net.Addr, key ssh.PublicKey) error {
			return nil
		},
		Auth: []ssh.AuthMethod{ssh.Password(defaultPassword)},
	}
	conn, err := ssh.Dial("tcp", sftpServerAddr, config)
	if assert.NoError(t, err) {
		_, _, err = conn.OpenChannel("unhandled", nil)
		if assert.Error(t, err) {
			assert.Contains(t, err.Error(), "unknown channel type")
		}
		err = conn.Close()
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestPermsSubDirsCommands(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermAny}
	u.Permissions["/subdir"] = []string{dataprovider.PermDownload, dataprovider.PermUpload, dataprovider.PermCreateDirs}
	u.Permissions["/subdir/otherdir"] = []string{dataprovider.PermListItems, dataprovider.PermDownload}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		err = client.Mkdir("subdir")
		assert.NoError(t, err)
		acmodTime := time.Now()
		err = client.Chtimes("/subdir", acmodTime, acmodTime)
		assert.NoError(t, err)
		_, err = client.Stat("/subdir")
		assert.NoError(t, err)
		_, err = client.ReadDir("/")
		assert.NoError(t, err)
		_, err = client.ReadDir("/subdir")
		assert.True(t, errors.Is(err, fs.ErrPermission))
		err = client.RemoveDirectory("/subdir/dir")
		assert.True(t, errors.Is(err, fs.ErrPermission))
		err = client.Mkdir("/subdir/otherdir/dir")
		assert.True(t, errors.Is(err, fs.ErrPermission))
		err = client.Mkdir("/otherdir")
		assert.NoError(t, err)
		err = client.Mkdir("/subdir/otherdir")
		assert.NoError(t, err)
		err = client.Rename("/otherdir", "/subdir/otherdir/adir")
		assert.True(t, errors.Is(err, fs.ErrPermission))
		err = client.Symlink("/otherdir", "/subdir/otherdir")
		assert.True(t, errors.Is(err, fs.ErrPermission))
		err = client.Symlink("/otherdir", "/otherdir_link")
		assert.NoError(t, err)
		err = client.Rename("/otherdir", "/otherdir1")
		assert.NoError(t, err)
		err = client.RemoveDirectory("/otherdir1")
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestRootDirCommands(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermAny}
	u.Permissions["/subdir"] = []string{dataprovider.PermDownload, dataprovider.PermUpload}
	localUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	u = getTestSFTPUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermAny}
	u.Permissions["/subdir"] = []string{dataprovider.PermDownload, dataprovider.PermUpload}
	sftpUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	for _, user := range []dataprovider.User{localUser, sftpUser} {
		conn, client, err := getSftpClient(user, usePubKey)
		if assert.NoError(t, err) {
			defer conn.Close()
			defer client.Close()
			err = client.Rename("/", "rootdir")
			assert.True(t, errors.Is(err, fs.ErrPermission))
			err = client.Symlink("/", "rootdir")
			assert.True(t, errors.Is(err, fs.ErrPermission))
			err = client.RemoveDirectory("/")
			assert.True(t, errors.Is(err, fs.ErrPermission))
		}
		if user.Username == defaultUsername {
			err = os.RemoveAll(user.GetHomeDir())
			assert.NoError(t, err)
			_, err = httpdtest.RemoveUser(user, http.StatusOK)
			assert.NoError(t, err)
			user.Password = defaultPassword
			user.ID = 0
			user.CreatedAt = 0
			user.Permissions = make(map[string][]string)
			user.Permissions["/"] = []string{dataprovider.PermAny}
			_, resp, err := httpdtest.AddUser(user, http.StatusCreated)
			assert.NoError(t, err, string(resp))
		}
	}
	_, err = httpdtest.RemoveUser(sftpUser, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(localUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
}

func TestRelativePaths(t *testing.T) {
	user := getTestUser(true)
	var path, rel string
	filesystems := []vfs.Fs{vfs.NewOsFs("", user.GetHomeDir(), "")}
	keyPrefix := strings.TrimPrefix(user.GetHomeDir(), "/") + "/"
	s3config := vfs.S3FsConfig{
		BaseS3FsConfig: sdk.BaseS3FsConfig{
			KeyPrefix: keyPrefix,
		},
	}
	s3fs, _ := vfs.NewS3Fs("", user.GetHomeDir(), "", s3config)
	gcsConfig := vfs.GCSFsConfig{
		BaseGCSFsConfig: sdk.BaseGCSFsConfig{
			KeyPrefix: keyPrefix,
		},
	}
	gcsfs, _ := vfs.NewGCSFs("", user.GetHomeDir(), "", gcsConfig)
	sftpconfig := vfs.SFTPFsConfig{
		BaseSFTPFsConfig: sdk.BaseSFTPFsConfig{
			Endpoint: sftpServerAddr,
			Username: defaultUsername,
			Prefix:   keyPrefix,
		},
		Password: kms.NewPlainSecret(defaultPassword),
	}
	sftpfs, _ := vfs.NewSFTPFs("", "", os.TempDir(), []string{user.Username}, sftpconfig)
	if runtime.GOOS != osWindows {
		filesystems = append(filesystems, s3fs, gcsfs, sftpfs)
	}
	rootPath := "/"
	for _, fs := range filesystems {
		path = filepath.Join(user.HomeDir, "/")
		rel = fs.GetRelativePath(path)
		assert.Equal(t, rootPath, rel)
		path = filepath.Join(user.HomeDir, "//")
		rel = fs.GetRelativePath(path)
		assert.Equal(t, rootPath, rel)
		path = filepath.Join(user.HomeDir, "../..")
		rel = fs.GetRelativePath(path)
		assert.Equal(t, rootPath, rel)
		path = filepath.Join(user.HomeDir, "../../../../../")
		rel = fs.GetRelativePath(path)
		assert.Equal(t, rootPath, rel)
		path = filepath.Join(user.HomeDir, "/..")
		rel = fs.GetRelativePath(path)
		assert.Equal(t, rootPath, rel)
		path = filepath.Join(user.HomeDir, "/../../../..")
		rel = fs.GetRelativePath(path)
		assert.Equal(t, rootPath, rel)
		path = filepath.Join(user.HomeDir, "")
		rel = fs.GetRelativePath(path)
		assert.Equal(t, rootPath, rel)
		path = filepath.Join(user.HomeDir, ".")
		rel = fs.GetRelativePath(path)
		assert.Equal(t, rootPath, rel)
		path = filepath.Join(user.HomeDir, "somedir")
		rel = fs.GetRelativePath(path)
		assert.Equal(t, "/somedir", rel)
		path = filepath.Join(user.HomeDir, "/somedir/subdir")
		rel = fs.GetRelativePath(path)
		assert.Equal(t, "/somedir/subdir", rel)
	}
}

func TestResolvePaths(t *testing.T) {
	user := getTestUser(true)
	var path, resolved string
	var err error
	filesystems := []vfs.Fs{vfs.NewOsFs("", user.GetHomeDir(), "")}
	keyPrefix := strings.TrimPrefix(user.GetHomeDir(), "/") + "/"
	s3config := vfs.S3FsConfig{
		BaseS3FsConfig: sdk.BaseS3FsConfig{
			KeyPrefix: keyPrefix,
			Bucket:    "bucket",
			Region:    "us-east-1",
		},
	}
	err = os.MkdirAll(user.GetHomeDir(), os.ModePerm)
	assert.NoError(t, err)
	s3fs, err := vfs.NewS3Fs("", user.GetHomeDir(), "", s3config)
	assert.NoError(t, err)
	gcsConfig := vfs.GCSFsConfig{
		BaseGCSFsConfig: sdk.BaseGCSFsConfig{
			KeyPrefix: keyPrefix,
		},
	}
	gcsfs, _ := vfs.NewGCSFs("", user.GetHomeDir(), "", gcsConfig)
	if runtime.GOOS != osWindows {
		filesystems = append(filesystems, s3fs, gcsfs)
	}
	for _, fs := range filesystems {
		path = "/"
		resolved, _ = fs.ResolvePath(filepath.ToSlash(path))
		assert.Equal(t, fs.Join(user.GetHomeDir(), "/"), resolved)
		path = "."
		resolved, _ = fs.ResolvePath(filepath.ToSlash(path))
		assert.Equal(t, fs.Join(user.GetHomeDir(), "/"), resolved)
		path = "test/sub"
		resolved, _ = fs.ResolvePath(filepath.ToSlash(path))
		assert.Equal(t, fs.Join(user.GetHomeDir(), "/test/sub"), resolved)
		path = "../test/sub"
		resolved, err = fs.ResolvePath(filepath.ToSlash(path))
		if vfs.IsLocalOsFs(fs) {
			assert.Error(t, err, "Unexpected resolved path: %v for: %v, fs: %v", resolved, path, fs.Name())
		} else {
			assert.Equal(t, fs.Join(user.GetHomeDir(), "/test/sub"), resolved)
		}
		path = "../../../test/../sub"
		resolved, err = fs.ResolvePath(filepath.ToSlash(path))
		if vfs.IsLocalOsFs(fs) {
			assert.Error(t, err, "Unexpected resolved path: %v for: %v, fs: %v", resolved, path, fs.Name())
		} else {
			assert.Equal(t, fs.Join(user.GetHomeDir(), "/sub"), resolved)
		}
	}
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestVirtualRelativePaths(t *testing.T) {
	user := getTestUser(true)
	mappedPath := filepath.Join(os.TempDir(), "mdir")
	vdirPath := "/vdir" //nolint:goconst
	user.VirtualFolders = append(user.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			MappedPath: mappedPath,
		},
		VirtualPath: vdirPath,
	})
	err := os.MkdirAll(mappedPath, os.ModePerm)
	assert.NoError(t, err)
	fsRoot := vfs.NewOsFs("", user.GetHomeDir(), "")
	fsVdir := vfs.NewOsFs("", mappedPath, vdirPath)
	rel := fsVdir.GetRelativePath(mappedPath)
	assert.Equal(t, vdirPath, rel)
	rel = fsRoot.GetRelativePath(filepath.Join(mappedPath, ".."))
	assert.Equal(t, "/", rel)
	// path outside home and virtual dir
	rel = fsRoot.GetRelativePath(filepath.Join(mappedPath, "../vdir1"))
	assert.Equal(t, "/", rel)
	rel = fsVdir.GetRelativePath(filepath.Join(mappedPath, "../vdir1"))
	assert.Equal(t, "/vdir", rel)
	rel = fsVdir.GetRelativePath(filepath.Join(mappedPath, "file.txt"))
	assert.Equal(t, "/vdir/file.txt", rel)
	rel = fsRoot.GetRelativePath(filepath.Join(user.HomeDir, "vdir1/file.txt"))
	assert.Equal(t, "/vdir1/file.txt", rel)
	err = os.RemoveAll(mappedPath)
	assert.NoError(t, err)
}

func TestUserPerms(t *testing.T) {
	user := getTestUser(true)
	user.Permissions = make(map[string][]string)
	user.Permissions["/"] = []string{dataprovider.PermListItems}
	user.Permissions["/p"] = []string{dataprovider.PermDelete}
	user.Permissions["/p/1"] = []string{dataprovider.PermDownload, dataprovider.PermUpload}
	user.Permissions["/p/2"] = []string{dataprovider.PermCreateDirs}
	user.Permissions["/p/3"] = []string{dataprovider.PermChmod}
	user.Permissions["/p/3/4"] = []string{dataprovider.PermChtimes}
	user.Permissions["/tmp"] = []string{dataprovider.PermRename}
	assert.True(t, user.HasPerm(dataprovider.PermListItems, "/"))
	assert.True(t, user.HasPerm(dataprovider.PermListItems, "."))
	assert.True(t, user.HasPerm(dataprovider.PermListItems, ""))
	assert.True(t, user.HasPerm(dataprovider.PermListItems, "../"))
	// path p and /p are the same
	assert.True(t, user.HasPerm(dataprovider.PermDelete, "/p"))
	assert.True(t, user.HasPerm(dataprovider.PermDownload, "/p/1"))
	assert.True(t, user.HasPerm(dataprovider.PermCreateDirs, "p/2"))
	assert.True(t, user.HasPerm(dataprovider.PermChmod, "/p/3"))
	assert.True(t, user.HasPerm(dataprovider.PermChtimes, "p/3/4/"))
	assert.True(t, user.HasPerm(dataprovider.PermChtimes, "p/3/4/../4"))
	// undefined paths have permissions of the nearest path
	assert.True(t, user.HasPerm(dataprovider.PermListItems, "/p34"))
	assert.True(t, user.HasPerm(dataprovider.PermListItems, "/p34/p1/file.dat"))
	assert.True(t, user.HasPerm(dataprovider.PermChtimes, "/p/3/4/5/6"))
	assert.True(t, user.HasPerm(dataprovider.PermDownload, "/p/1/test/file.dat"))
}

func TestFilterFilePatterns(t *testing.T) {
	user := getTestUser(true)
	pattern := sdk.PatternsFilter{
		Path:            "/test",
		AllowedPatterns: []string{"*.jpg", "*.png"},
		DeniedPatterns:  []string{"*.pdf"},
	}
	filters := dataprovider.UserFilters{
		BaseUserFilters: sdk.BaseUserFilters{
			FilePatterns: []sdk.PatternsFilter{pattern},
		},
	}
	user.Filters = filters
	ok, _ := user.IsFileAllowed("/test/test.jPg")
	assert.True(t, ok)
	ok, _ = user.IsFileAllowed("/test/test.pdf")
	assert.False(t, ok)
	ok, _ = user.IsFileAllowed("/test.pDf")
	assert.True(t, ok)

	filters.FilePatterns = append(filters.FilePatterns, sdk.PatternsFilter{
		Path:            "/",
		AllowedPatterns: []string{"*.zip", "*.rar", "*.pdf"},
		DeniedPatterns:  []string{"*.gz"},
	})
	user.Filters = filters
	ok, _ = user.IsFileAllowed("/test1/test.gz")
	assert.False(t, ok)
	ok, _ = user.IsFileAllowed("/test1/test.zip")
	assert.True(t, ok)
	ok, _ = user.IsFileAllowed("/test/sub/test.pdf")
	assert.False(t, ok)
	ok, _ = user.IsFileAllowed("/test1/test.png")
	assert.False(t, ok)

	filters.FilePatterns = append(filters.FilePatterns, sdk.PatternsFilter{
		Path:           "/test/sub",
		DeniedPatterns: []string{"*.tar"},
	})
	user.Filters = filters
	ok, _ = user.IsFileAllowed("/test/sub/sub/test.tar")
	assert.False(t, ok)
	ok, _ = user.IsFileAllowed("/test/sub/test.gz")
	assert.True(t, ok)
	ok, _ = user.IsFileAllowed("/test/test.zip")
	assert.False(t, ok)
}

func TestUserAllowedLoginMethods(t *testing.T) {
	user := getTestUser(true)
	user.Filters.DeniedLoginMethods = dataprovider.ValidLoginMethods
	allowedMethods := user.GetAllowedLoginMethods()
	assert.Equal(t, 0, len(allowedMethods))

	user.Filters.DeniedLoginMethods = []string{
		dataprovider.LoginMethodPassword,
		dataprovider.SSHLoginMethodPublicKey,
		dataprovider.SSHLoginMethodKeyboardInteractive,
	}
	allowedMethods = user.GetAllowedLoginMethods()
	assert.Equal(t, 4, len(allowedMethods))

	assert.True(t, util.Contains(allowedMethods, dataprovider.SSHLoginMethodKeyAndKeyboardInt))
	assert.True(t, util.Contains(allowedMethods, dataprovider.SSHLoginMethodKeyAndPassword))
}

func TestUserPartialAuth(t *testing.T) {
	user := getTestUser(true)
	user.Filters.DeniedLoginMethods = []string{
		dataprovider.LoginMethodPassword,
		dataprovider.SSHLoginMethodPublicKey,
		dataprovider.SSHLoginMethodKeyboardInteractive,
	}
	assert.False(t, user.IsPartialAuth(dataprovider.LoginMethodPassword))
	assert.False(t, user.IsPartialAuth(dataprovider.SSHLoginMethodKeyboardInteractive))
	assert.True(t, user.IsPartialAuth(dataprovider.SSHLoginMethodPublicKey))

	user.Filters.DeniedLoginMethods = []string{
		dataprovider.LoginMethodPassword,
		dataprovider.SSHLoginMethodKeyboardInteractive,
	}
	assert.False(t, user.IsPartialAuth(dataprovider.SSHLoginMethodPublicKey))

	user.Filters.DeniedLoginMethods = []string{
		dataprovider.LoginMethodPassword,
		dataprovider.SSHLoginMethodPublicKey,
	}
	assert.False(t, user.IsPartialAuth(dataprovider.SSHLoginMethodPublicKey))
}

func TestUserGetNextAuthMethods(t *testing.T) {
	user := getTestUser(true)
	user.Filters.DeniedLoginMethods = []string{
		dataprovider.LoginMethodPassword,
		dataprovider.SSHLoginMethodPublicKey,
		dataprovider.SSHLoginMethodKeyboardInteractive,
	}
	methods := user.GetNextAuthMethods(nil, true)
	assert.Equal(t, 0, len(methods))

	methods = user.GetNextAuthMethods([]string{dataprovider.LoginMethodPassword}, true)
	assert.Equal(t, 0, len(methods))

	methods = user.GetNextAuthMethods([]string{dataprovider.SSHLoginMethodKeyboardInteractive}, true)
	assert.Equal(t, 0, len(methods))

	methods = user.GetNextAuthMethods([]string{
		dataprovider.SSHLoginMethodPublicKey,
		dataprovider.SSHLoginMethodKeyboardInteractive,
	}, true)
	assert.Equal(t, 0, len(methods))

	methods = user.GetNextAuthMethods([]string{dataprovider.SSHLoginMethodPublicKey}, true)
	assert.Equal(t, 2, len(methods))
	assert.True(t, util.Contains(methods, dataprovider.LoginMethodPassword))
	assert.True(t, util.Contains(methods, dataprovider.SSHLoginMethodKeyboardInteractive))
	methods = user.GetNextAuthMethods([]string{dataprovider.SSHLoginMethodPublicKey}, false)
	assert.Equal(t, 1, len(methods))
	assert.True(t, util.Contains(methods, dataprovider.SSHLoginMethodKeyboardInteractive))

	user.Filters.DeniedLoginMethods = []string{
		dataprovider.LoginMethodPassword,
		dataprovider.SSHLoginMethodPublicKey,
		dataprovider.SSHLoginMethodKeyboardInteractive,
		dataprovider.SSHLoginMethodKeyAndKeyboardInt,
	}
	methods = user.GetNextAuthMethods([]string{dataprovider.SSHLoginMethodPublicKey}, true)
	assert.Equal(t, 1, len(methods))
	assert.True(t, util.Contains(methods, dataprovider.LoginMethodPassword))

	user.Filters.DeniedLoginMethods = []string{
		dataprovider.LoginMethodPassword,
		dataprovider.SSHLoginMethodPublicKey,
		dataprovider.SSHLoginMethodKeyboardInteractive,
		dataprovider.SSHLoginMethodKeyAndPassword,
	}
	methods = user.GetNextAuthMethods([]string{dataprovider.SSHLoginMethodPublicKey}, true)
	assert.Equal(t, 1, len(methods))
	assert.True(t, util.Contains(methods, dataprovider.SSHLoginMethodKeyboardInteractive))
}

func TestUserIsLoginMethodAllowed(t *testing.T) {
	user := getTestUser(true)
	user.Filters.DeniedLoginMethods = []string{
		dataprovider.LoginMethodPassword,
		dataprovider.SSHLoginMethodPublicKey,
		dataprovider.SSHLoginMethodKeyboardInteractive,
	}
	assert.False(t, user.IsLoginMethodAllowed(dataprovider.LoginMethodPassword, common.ProtocolSSH, nil))
	assert.False(t, user.IsLoginMethodAllowed(dataprovider.LoginMethodPassword, common.ProtocolFTP, nil))
	assert.False(t, user.IsLoginMethodAllowed(dataprovider.LoginMethodPassword, common.ProtocolWebDAV, nil))
	assert.False(t, user.IsLoginMethodAllowed(dataprovider.SSHLoginMethodPublicKey, common.ProtocolSSH, nil))
	assert.False(t, user.IsLoginMethodAllowed(dataprovider.SSHLoginMethodKeyboardInteractive, common.ProtocolSSH, nil))
	assert.True(t, user.IsLoginMethodAllowed(dataprovider.LoginMethodPassword, common.ProtocolSSH,
		[]string{dataprovider.SSHLoginMethodPublicKey}))
	assert.True(t, user.IsLoginMethodAllowed(dataprovider.SSHLoginMethodKeyboardInteractive, common.ProtocolSSH,
		[]string{dataprovider.SSHLoginMethodPublicKey}))
	assert.True(t, user.IsLoginMethodAllowed(dataprovider.SSHLoginMethodKeyAndPassword, common.ProtocolSSH,
		[]string{dataprovider.SSHLoginMethodPublicKey}))

	user.Filters.DeniedLoginMethods = []string{
		dataprovider.SSHLoginMethodPublicKey,
		dataprovider.SSHLoginMethodKeyboardInteractive,
	}
	assert.True(t, user.IsLoginMethodAllowed(dataprovider.LoginMethodPassword, common.ProtocolSSH, nil))

	user.Filters.DeniedLoginMethods = []string{
		dataprovider.SSHLoginMethodPassword,
	}
	assert.True(t, user.IsLoginMethodAllowed(dataprovider.LoginMethodPassword, common.ProtocolHTTP, nil))
	assert.True(t, user.IsLoginMethodAllowed(dataprovider.LoginMethodPassword, common.ProtocolFTP, nil))
	assert.True(t, user.IsLoginMethodAllowed(dataprovider.LoginMethodPassword, common.ProtocolWebDAV, nil))
	assert.False(t, user.IsLoginMethodAllowed(dataprovider.LoginMethodPassword, common.ProtocolSSH, nil))
}

func TestUserEmptySubDirPerms(t *testing.T) {
	user := getTestUser(true)
	user.Permissions = make(map[string][]string)
	user.Permissions["/emptyperms"] = []string{}
	for _, p := range dataprovider.ValidPerms {
		assert.False(t, user.HasPerm(p, "/emptyperms"))
	}
}

func TestUserFiltersIPMaskConditions(t *testing.T) {
	user := getTestUser(true)
	// with no filter login must be allowed even if the remoteIP is invalid
	assert.True(t, user.IsLoginFromAddrAllowed("192.168.1.5"))
	assert.True(t, user.IsLoginFromAddrAllowed("invalid"))

	user.Filters.DeniedIP = append(user.Filters.DeniedIP, "192.168.1.0/24")
	assert.False(t, user.IsLoginFromAddrAllowed("192.168.1.5"))
	assert.True(t, user.IsLoginFromAddrAllowed("192.168.2.6"))

	user.Filters.AllowedIP = append(user.Filters.AllowedIP, "192.168.1.5/32")
	// if the same ip/mask is both denied and allowed then login must be allowed
	assert.True(t, user.IsLoginFromAddrAllowed("192.168.1.5"))
	assert.False(t, user.IsLoginFromAddrAllowed("192.168.1.3"))
	assert.False(t, user.IsLoginFromAddrAllowed("192.168.3.6"))

	user.Filters.DeniedIP = []string{}
	assert.True(t, user.IsLoginFromAddrAllowed("192.168.1.5"))
	assert.False(t, user.IsLoginFromAddrAllowed("192.168.1.6"))

	user.Filters.DeniedIP = []string{"192.168.0.0/16", "172.16.0.0/16"}
	user.Filters.AllowedIP = []string{}
	assert.False(t, user.IsLoginFromAddrAllowed("192.168.5.255"))
	assert.False(t, user.IsLoginFromAddrAllowed("172.16.1.2"))
	assert.True(t, user.IsLoginFromAddrAllowed("172.18.2.1"))

	user.Filters.AllowedIP = []string{"10.4.4.0/24"}
	assert.False(t, user.IsLoginFromAddrAllowed("10.5.4.2"))
	assert.True(t, user.IsLoginFromAddrAllowed("10.4.4.2"))
	assert.True(t, user.IsLoginFromAddrAllowed("invalid"))
}

func TestGetVirtualFolderForPath(t *testing.T) {
	user := getTestUser(true)
	mappedPath1 := filepath.Join(os.TempDir(), "vpath1")
	mappedPath2 := filepath.Join(os.TempDir(), "vpath1")
	mappedPath3 := filepath.Join(os.TempDir(), "vpath3")
	vdirPath := "/vdir/sub"
	vSubDirPath := path.Join(vdirPath, "subdir", "subdir")
	vSubDir1Path := path.Join(vSubDirPath, "subdir", "subdir")
	user.VirtualFolders = append(user.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			MappedPath: mappedPath1,
		},
		VirtualPath: vdirPath,
	})
	user.VirtualFolders = append(user.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			MappedPath: mappedPath2,
		},
		VirtualPath: vSubDir1Path,
	})
	user.VirtualFolders = append(user.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			MappedPath: mappedPath3,
		},
		VirtualPath: vSubDirPath,
	})
	folder, err := user.GetVirtualFolderForPath(path.Join(vSubDirPath, "file"))
	assert.NoError(t, err)
	assert.Equal(t, folder.MappedPath, mappedPath3)
	_, err = user.GetVirtualFolderForPath("/file")
	assert.Error(t, err)
	folder, err = user.GetVirtualFolderForPath(path.Join(vdirPath, "/file"))
	assert.NoError(t, err)
	assert.Equal(t, folder.MappedPath, mappedPath1)
	folder, err = user.GetVirtualFolderForPath(path.Join(vSubDirPath+"1", "file"))
	assert.NoError(t, err)
	assert.Equal(t, folder.MappedPath, mappedPath1)
	_, err = user.GetVirtualFolderForPath("/vdir/sub1/file")
	assert.Error(t, err)
	folder, err = user.GetVirtualFolderForPath(vdirPath)
	assert.NoError(t, err)
}

func TestStatVFS(t *testing.T) {
	usePubKey := false
	user, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	testFileSize := int64(65535)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()

		stat, err := client.StatVFS("/")
		assert.NoError(t, err)
		assert.Greater(t, stat.ID, uint32(0))
		assert.Greater(t, stat.Blocks, uint64(0))
		assert.Greater(t, stat.Bsize, uint64(0))

		_, err = client.StatVFS("missing-path")
		assert.Error(t, err)
		assert.True(t, errors.Is(err, fs.ErrNotExist))
	}
	user.QuotaFiles = 100
	user.Filters.DisableFsChecks = true
	user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()

		testFilePath := filepath.Join(homeBasePath, testFileName)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)

		_, err = client.StatVFS("missing-path")
		assert.Error(t, err)
		assert.ErrorIs(t, err, fs.ErrNotExist)

		stat, err := client.StatVFS("/")
		assert.NoError(t, err)
		assert.Greater(t, stat.ID, uint32(0))
		assert.Greater(t, stat.Blocks, uint64(0))
		assert.Greater(t, stat.Bsize, uint64(0))
		assert.Equal(t, uint64(100), stat.Files)
		assert.Equal(t, uint64(99), stat.Ffree)
	}

	user.QuotaSize = 8192
	user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()

		stat, err := client.StatVFS("/")
		assert.NoError(t, err)
		assert.Greater(t, stat.ID, uint32(0))
		assert.Greater(t, stat.Blocks, uint64(0))
		assert.Greater(t, stat.Bsize, uint64(0))
		assert.Equal(t, uint64(100), stat.Files)
		assert.Equal(t, uint64(0), stat.Ffree)
		assert.Equal(t, uint64(2), stat.Blocks)
		assert.Equal(t, uint64(0), stat.Bfree)
	}
	user.QuotaFiles = 0
	user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()

		stat, err := client.StatVFS("/")
		assert.NoError(t, err)
		assert.Greater(t, stat.ID, uint32(0))
		assert.Greater(t, stat.Blocks, uint64(0))
		assert.Greater(t, stat.Bsize, uint64(0))
		assert.Greater(t, stat.Files, uint64(0))
		assert.Equal(t, uint64(0), stat.Ffree)
		assert.Equal(t, uint64(2), stat.Blocks)
		assert.Equal(t, uint64(0), stat.Bfree)
	}

	user.QuotaSize = 1
	user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()

		stat, err := client.StatVFS("/")
		assert.NoError(t, err)
		assert.Greater(t, stat.ID, uint32(0))
		assert.Equal(t, uint64(1), stat.Blocks)
		assert.Equal(t, uint64(1), stat.Bsize)
		assert.Greater(t, stat.Files, uint64(0))
		assert.Equal(t, uint64(0), stat.Ffree)
		assert.Equal(t, uint64(1), stat.Blocks)
		assert.Equal(t, uint64(0), stat.Bfree)
	}

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestStatVFSCloudBackend(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	u.FsConfig.Provider = sdk.AzureBlobFilesystemProvider
	u.FsConfig.AzBlobConfig.SASURL = kms.NewPlainSecret("https://myaccount.blob.core.windows.net/sasurl")
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()

		err = dataprovider.UpdateUserQuota(&user, 100, 8192, true)
		assert.NoError(t, err)
		stat, err := client.StatVFS("/")
		assert.NoError(t, err)
		assert.Greater(t, stat.ID, uint32(0))
		assert.Greater(t, stat.Blocks, uint64(0))
		assert.Greater(t, stat.Bsize, uint64(0))
		assert.Equal(t, uint64(1000000+100), stat.Files)
		assert.Equal(t, uint64(2147483648+2), stat.Blocks)
		assert.Equal(t, uint64(1000000), stat.Ffree)
		assert.Equal(t, uint64(2147483648), stat.Bfree)
	}

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
}

func TestSSHCommands(t *testing.T) {
	usePubKey := false
	user, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	_, err = runSSHCommand("ls", user, usePubKey)
	assert.Error(t, err, "unsupported ssh command must fail")

	_, err = runSSHCommand("cd", user, usePubKey)
	assert.NoError(t, err)
	out, err := runSSHCommand("pwd", user, usePubKey)
	if assert.NoError(t, err) {
		assert.Equal(t, "/\n", string(out))
	}
	out, err = runSSHCommand("md5sum", user, usePubKey)
	assert.NoError(t, err)
	// echo -n '' | md5sum
	assert.Contains(t, string(out), "d41d8cd98f00b204e9800998ecf8427e")

	out, err = runSSHCommand("sha1sum", user, usePubKey)
	assert.NoError(t, err)
	assert.Contains(t, string(out), "da39a3ee5e6b4b0d3255bfef95601890afd80709")

	out, err = runSSHCommand("sha256sum", user, usePubKey)
	assert.NoError(t, err)
	assert.Contains(t, string(out), "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855")

	out, err = runSSHCommand("sha384sum", user, usePubKey)
	assert.NoError(t, err)
	assert.Contains(t, string(out), "38b060a751ac96384cd9327eb1b1e36a21fdb71114be07434c0cc7bf63f6e1da274edebfe76f65fbd51ad2f14898b95b")

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
}

func TestSSHFileHash(t *testing.T) {
	usePubKey := true
	localUser, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	sftpUser, _, err := httpdtest.AddUser(getTestSFTPUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	u := getTestUserWithCryptFs(usePubKey)
	u.Username = u.Username + "_crypt"
	cryptUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	for _, user := range []dataprovider.User{localUser, sftpUser, cryptUser} {
		conn, client, err := getSftpClient(user, usePubKey)
		if assert.NoError(t, err) {
			defer conn.Close()
			defer client.Close()
			testFilePath := filepath.Join(homeBasePath, testFileName)
			testFileSize := int64(65535)
			err = createTestFile(testFilePath, testFileSize)
			assert.NoError(t, err)
			err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
			assert.NoError(t, err)
			user.Permissions = make(map[string][]string)
			user.Permissions["/"] = []string{dataprovider.PermUpload}
			_, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
			assert.NoError(t, err)
			_, err = runSSHCommand("sha512sum "+testFileName, user, usePubKey)
			assert.Error(t, err, "hash command with no list permission must fail")

			user.Permissions["/"] = []string{dataprovider.PermAny}
			_, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
			assert.NoError(t, err)

			initialHash, err := computeHashForFile(sha512.New(), testFilePath)
			assert.NoError(t, err)

			out, err := runSSHCommand("sha512sum "+testFileName, user, usePubKey)
			if assert.NoError(t, err) {
				assert.Contains(t, string(out), initialHash)
			}
			_, err = runSSHCommand("sha512sum invalid_path", user, usePubKey)
			assert.Error(t, err, "hash for an invalid path must fail")

			err = os.Remove(testFilePath)
			assert.NoError(t, err)
		}
	}
	_, err = httpdtest.RemoveUser(sftpUser, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(cryptUser, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(localUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
}

func TestSSHCopy(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	u.QuotaFiles = 100
	mappedPath1 := filepath.Join(os.TempDir(), "vdir1")
	folderName1 := filepath.Base(mappedPath1)
	vdirPath1 := "/vdir1/subdir"
	mappedPath2 := filepath.Join(os.TempDir(), "vdir2")
	folderName2 := filepath.Base(mappedPath2)
	vdirPath2 := "/vdir2/subdir"
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName1,
			MappedPath: mappedPath1,
		},
		VirtualPath: vdirPath1,
		QuotaFiles:  -1,
		QuotaSize:   -1,
	})
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName2,
			MappedPath: mappedPath2,
		},
		VirtualPath: vdirPath2,
		QuotaFiles:  100,
		QuotaSize:   0,
	})
	u.Filters.FilePatterns = []sdk.PatternsFilter{
		{
			Path:           "/",
			DeniedPatterns: []string{"*.denied"},
		},
	}
	err := os.MkdirAll(mappedPath1, os.ModePerm)
	assert.NoError(t, err)
	err = os.MkdirAll(mappedPath2, os.ModePerm)
	assert.NoError(t, err)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	testDir := "adir"
	testDir1 := "adir1"
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFileSize := int64(131072)
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFileName1 := "test_file1.dat"
		testFileSize1 := int64(65537)
		testFilePath1 := filepath.Join(homeBasePath, testFileName1)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = createTestFile(testFilePath1, testFileSize1)
		assert.NoError(t, err)
		err = client.Mkdir(testDir)
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath1, testDir1))
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath2, testDir1))
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(testDir, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(testDir, testFileName1), testFileSize1, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath1, testDir1, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(vdirPath1, testDir1, testFileName1), testFileSize1, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath2, testDir1, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(vdirPath2, testDir1, testFileName1), testFileSize1, client)
		assert.NoError(t, err)
		err = client.Symlink(path.Join(testDir, testFileName), testFileName)
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 4, user.UsedQuotaFiles)
		assert.Equal(t, 2*testFileSize+2*testFileSize1, user.UsedQuotaSize)
		f, _, err := httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize+testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 2, f.UsedQuotaFiles)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize+testFileSize1, f.UsedQuotaSize)
		assert.Equal(t, 2, f.UsedQuotaFiles)

		_, err = client.Stat(testDir1)
		assert.Error(t, err)
		_, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v", path.Join(vdirPath1, testDir1)), user, usePubKey)
		assert.Error(t, err)
		_, err = runSSHCommand("sftpgo-copy", user, usePubKey)
		assert.Error(t, err)
		_, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", testFileName, testFileName+".linkcopy"), user, usePubKey)
		assert.Error(t, err)
		out, err := runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", path.Join(vdirPath1, testDir1), "."), user, usePubKey)
		if assert.NoError(t, err) {
			assert.Equal(t, "OK\n", string(out))
			fi, err := client.Stat(testDir1)
			if assert.NoError(t, err) {
				assert.True(t, fi.IsDir())
			}
			user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
			assert.NoError(t, err)
			assert.Equal(t, 6, user.UsedQuotaFiles)
			assert.Equal(t, 3*testFileSize+3*testFileSize1, user.UsedQuotaSize)
		}
		_, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", "missing\\ dir", "."), user, usePubKey)
		assert.Error(t, err)
		_, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", path.Join(vdirPath1, testDir1), "."), user, usePubKey)
		assert.Error(t, err)
		out, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", path.Join(vdirPath2, testDir1, testFileName), testFileName+".copy"),
			user, usePubKey)
		if assert.NoError(t, err) {
			assert.Equal(t, "OK\n", string(out))
			fi, err := client.Stat(testFileName + ".copy")
			if assert.NoError(t, err) {
				assert.True(t, fi.Mode().IsRegular())
			}
			user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
			assert.NoError(t, err)
			assert.Equal(t, 7, user.UsedQuotaFiles)
			assert.Equal(t, 4*testFileSize+3*testFileSize1, user.UsedQuotaSize)
		}
		out, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", path.Join(vdirPath1, testDir1), path.Join(vdirPath2, testDir1+"copy")),
			user, usePubKey)
		if assert.NoError(t, err) {
			assert.Equal(t, "OK\n", string(out))
			fi, err := client.Stat(path.Join(vdirPath2, testDir1+"copy"))
			if assert.NoError(t, err) {
				assert.True(t, fi.IsDir())
			}
			user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
			assert.NoError(t, err)
			assert.Equal(t, 7, user.UsedQuotaFiles)
			assert.Equal(t, 4*testFileSize+3*testFileSize1, user.UsedQuotaSize)
			f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
			assert.NoError(t, err)
			assert.Equal(t, testFileSize*2+testFileSize1*2, f.UsedQuotaSize)
			assert.Equal(t, 4, f.UsedQuotaFiles)
		}
		out, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", path.Join(vdirPath1, testDir1), path.Join(vdirPath1, testDir1+"copy")),
			user, usePubKey)
		if assert.NoError(t, err) {
			assert.Equal(t, "OK\n", string(out))
			_, err := client.Stat(path.Join(vdirPath2, testDir1+"copy"))
			assert.NoError(t, err)
			user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
			assert.NoError(t, err)
			assert.Equal(t, 9, user.UsedQuotaFiles)
			assert.Equal(t, 5*testFileSize+4*testFileSize1, user.UsedQuotaSize)
			f, _, err = httpdtest.GetFolderByName(folderName1, http.StatusOK)
			assert.NoError(t, err)
			assert.Equal(t, 2*testFileSize+2*testFileSize1, f.UsedQuotaSize)
			assert.Equal(t, 4, f.UsedQuotaFiles)
		}

		_, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", path.Join(vdirPath2, ".."), "newdir"), user, usePubKey)
		assert.Error(t, err)
		_, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", path.Join(testDir, testFileName), testFileName+".denied"), user, usePubKey)
		assert.Error(t, err)
		if runtime.GOOS != osWindows {
			subPath := filepath.Join(mappedPath1, testDir1, "asubdir", "anothersub", "another")
			err = os.MkdirAll(subPath, os.ModePerm)
			assert.NoError(t, err)
			err = os.Chmod(subPath, 0001)
			assert.NoError(t, err)
			// c.connection.fs.GetDirSize(fsSourcePath) will fail scanning subdirs
			// checkRecursiveCopyPermissions will work since it will skip subdirs with no permissions
			_, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", vdirPath1, "newdir"), user, usePubKey)
			assert.Error(t, err)
			err = os.Chmod(subPath, os.ModePerm)
			assert.NoError(t, err)
			err = os.Chmod(filepath.Join(user.GetHomeDir(), testDir1), 0555)
			assert.NoError(t, err)
			_, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", path.Join(vdirPath1, testDir1, testFileName),
				path.Join(testDir1, "anewdir")), user, usePubKey)
			assert.Error(t, err)
			err = os.Chmod(filepath.Join(user.GetHomeDir(), testDir1), os.ModePerm)
			assert.NoError(t, err)

			err = os.RemoveAll(filepath.Join(user.GetHomeDir(), "vdir1"))
			assert.NoError(t, err)
			err = os.Chmod(user.GetHomeDir(), 0555)
			assert.NoError(t, err)
			_, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", path.Join(vdirPath2), "/vdir1"), user, usePubKey)
			assert.Error(t, err)
			err = os.Chmod(user.GetHomeDir(), os.ModePerm)
			assert.NoError(t, err)
		}

		err = os.Remove(testFilePath)
		assert.NoError(t, err)
		err = os.Remove(testFilePath1)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName1}, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName2}, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath1)
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath2)
	assert.NoError(t, err)
}

func TestSSHCopyPermissions(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	u.Permissions["/dir1"] = []string{dataprovider.PermUpload, dataprovider.PermDownload, dataprovider.PermListItems}
	u.Permissions["/dir2"] = []string{dataprovider.PermCreateDirs, dataprovider.PermUpload, dataprovider.PermDownload,
		dataprovider.PermListItems}
	u.Permissions["/dir3"] = []string{dataprovider.PermCreateDirs, dataprovider.PermCreateSymlinks, dataprovider.PermDownload,
		dataprovider.PermListItems}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testDir := "tDir"
		testFileSize := int64(131072)
		testFilePath := filepath.Join(homeBasePath, testFileName)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = client.Mkdir(testDir)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join("/", testDir, testFileName), testFileSize, client)
		assert.NoError(t, err)
		// test copy file with no permission
		_, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", path.Join("/", testDir, testFileName), path.Join("/dir3", testFileName)),
			user, usePubKey)
		assert.Error(t, err)
		// test copy dir with no create dirs perm
		_, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", path.Join("/", testDir), "/dir1/"), user, usePubKey)
		assert.Error(t, err)
		// dir2 has the needed permissions
		_, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", path.Join("/", testDir), "/dir2/"), user, usePubKey)
		assert.NoError(t, err)
		info, err := client.Stat(path.Join("/dir2", testDir))
		if assert.NoError(t, err) {
			assert.True(t, info.IsDir())
		}
		info, err = client.Stat(path.Join("/dir2", testDir, testFileName))
		if assert.NoError(t, err) {
			assert.True(t, info.Mode().IsRegular())
		}
		// now create a symlink, dir2 has no create symlink permission
		err = client.Symlink(path.Join("/", testDir, testFileName), path.Join("/", testDir, testFileName+".link"))
		assert.NoError(t, err)
		_, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", path.Join("/", testDir), "/dir2/sub"), user, usePubKey)
		assert.Error(t, err)
		_, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", path.Join("/", testDir), "/newdir"), user, usePubKey)
		assert.NoError(t, err)
		// now delete the file and copy inside /dir3
		err = client.Remove(path.Join("/", testDir, testFileName))
		assert.NoError(t, err)
		_, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", path.Join("/", testDir), "/dir3"), user, usePubKey)
		assert.NoError(t, err)

		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestSSHCopyQuotaLimits(t *testing.T) {
	usePubKey := true
	testFileSize := int64(131072)
	testFileSize1 := int64(65536)
	testFileSize2 := int64(32768)
	u := getTestUser(usePubKey)
	u.QuotaFiles = 3
	u.QuotaSize = testFileSize + testFileSize1 + 1
	mappedPath1 := filepath.Join(os.TempDir(), "vdir1")
	folderName1 := filepath.Base(mappedPath1)
	vdirPath1 := "/vdir1"
	mappedPath2 := filepath.Join(os.TempDir(), "vdir2")
	folderName2 := filepath.Base(mappedPath2)
	vdirPath2 := "/vdir2"
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName1,
			MappedPath: mappedPath1,
		},
		VirtualPath: vdirPath1,
		QuotaFiles:  -1,
		QuotaSize:   -1,
	})
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName2,
			MappedPath: mappedPath2,
		},
		VirtualPath: vdirPath2,
		QuotaFiles:  3,
		QuotaSize:   testFileSize + testFileSize1 + 1,
	})
	u.Filters.FilePatterns = []sdk.PatternsFilter{
		{
			Path:           "/",
			DeniedPatterns: []string{"*.denied"},
		},
	}
	err := os.MkdirAll(mappedPath1, os.ModePerm)
	assert.NoError(t, err)
	err = os.MkdirAll(mappedPath2, os.ModePerm)
	assert.NoError(t, err)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testDir := "testDir"
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFileName1 := "test_file1.dat"
		testFilePath1 := filepath.Join(homeBasePath, testFileName1)
		testFileName2 := "test_file2.dat"
		testFilePath2 := filepath.Join(homeBasePath, testFileName2)
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = createTestFile(testFilePath1, testFileSize1)
		assert.NoError(t, err)
		err = createTestFile(testFilePath2, testFileSize2)
		assert.NoError(t, err)
		err = client.Mkdir(testDir)
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath2, testDir))
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath2, path.Join(testDir, testFileName2), testFileSize2, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath2, path.Join(testDir, testFileName2+".dupl"), testFileSize2, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath2, path.Join(vdirPath2, testDir, testFileName2), testFileSize2, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath2, path.Join(vdirPath2, testDir, testFileName2+".dupl"), testFileSize2, client)
		assert.NoError(t, err)
		// user quota: 2 files, size: 32768*2, folder2 quota: 2 files, size: 32768*2
		// try to duplicate testDir, this will result in 4 file (over quota) and 32768*4 bytes (not over quota)
		_, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", testDir, testDir+"_copy"), user, usePubKey)
		assert.Error(t, err)
		_, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", path.Join(vdirPath2, testDir),
			path.Join(vdirPath2, testDir+"_copy")), user, usePubKey)
		assert.Error(t, err)

		_, err = runSSHCommand(fmt.Sprintf("sftpgo-remove %v", testDir), user, usePubKey)
		assert.NoError(t, err)
		_, err = runSSHCommand(fmt.Sprintf("sftpgo-remove %v", path.Join(vdirPath2, testDir)), user, usePubKey)
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 0, user.UsedQuotaFiles)
		assert.Equal(t, int64(0), user.UsedQuotaSize)
		f, _, err := httpdtest.GetFolderByName(folderName1, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 0, f.UsedQuotaFiles)
		assert.Equal(t, int64(0), f.UsedQuotaSize)
		f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 0, f.UsedQuotaFiles)
		assert.Equal(t, int64(0), f.UsedQuotaSize)
		err = client.Mkdir(path.Join(vdirPath1, testDir))
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath2, testDir))
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath1, testDir, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(vdirPath1, testDir, testFileName1), testFileSize1, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath2, testDir, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(vdirPath2, testDir, testFileName1), testFileSize1, client)
		assert.NoError(t, err)

		// vdir1 is included in user quota, file limit will be exceeded
		_, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", path.Join(vdirPath1, testDir), "/"), user, usePubKey)
		assert.Error(t, err)

		// vdir2 size limit will be exceeded
		_, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", path.Join(vdirPath1, testDir, testFileName),
			vdirPath2+"/"), user, usePubKey)
		assert.Error(t, err)
		// now decrease the limits
		user.QuotaFiles = 1
		user.QuotaSize = testFileSize * 10
		user.VirtualFolders[1].QuotaSize = testFileSize
		user.VirtualFolders[1].QuotaFiles = 10
		user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
		assert.NoError(t, err)
		assert.Equal(t, 1, user.QuotaFiles)
		assert.Equal(t, testFileSize*10, user.QuotaSize)
		if assert.Len(t, user.VirtualFolders, 2) {
			f := user.VirtualFolders[1]
			assert.Equal(t, testFileSize, f.QuotaSize)
			assert.Equal(t, 10, f.QuotaFiles)
		}
		_, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", path.Join(vdirPath1, testDir),
			path.Join(vdirPath2, testDir+".copy")), user, usePubKey)
		assert.Error(t, err)

		_, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", path.Join(vdirPath2, testDir),
			testDir+".copy"), user, usePubKey)
		assert.Error(t, err)

		err = os.Remove(testFilePath)
		assert.NoError(t, err)
		err = os.Remove(testFilePath1)
		assert.NoError(t, err)
		err = os.Remove(testFilePath2)
		assert.NoError(t, err)
	}

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName1}, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName2}, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath1)
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath2)
	assert.NoError(t, err)
}

func TestSSHCopyRemoveNonLocalFs(t *testing.T) {
	usePubKey := true
	localUser, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	sftpUser, _, err := httpdtest.AddUser(getTestSFTPUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(sftpUser, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testDir := "test"
		err = client.Mkdir(testDir)
		assert.NoError(t, err)
		_, err = runSSHCommand(fmt.Sprintf("sftpgo-copy %v %v", testDir, testDir+"_copy"), sftpUser, usePubKey)
		assert.Error(t, err)
		_, err = runSSHCommand(fmt.Sprintf("sftpgo-remove %v", testDir), sftpUser, usePubKey)
		assert.Error(t, err)
	}

	_, err = httpdtest.RemoveUser(sftpUser, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(localUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
}

func TestSSHRemove(t *testing.T) {
	usePubKey := false
	u := getTestUser(usePubKey)
	u.QuotaFiles = 100
	mappedPath1 := filepath.Join(os.TempDir(), "vdir1")
	folderName1 := filepath.Base(mappedPath1)
	vdirPath1 := "/vdir1/sub"
	mappedPath2 := filepath.Join(os.TempDir(), "vdir2")
	folderName2 := filepath.Base(mappedPath2)
	vdirPath2 := "/vdir2/sub"
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName1,
			MappedPath: mappedPath1,
		},
		VirtualPath: vdirPath1,
		QuotaFiles:  -1,
		QuotaSize:   -1,
	})
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName2,
			MappedPath: mappedPath2,
		},
		VirtualPath: vdirPath2,
		QuotaFiles:  100,
		QuotaSize:   0,
	})
	err := os.MkdirAll(mappedPath1, os.ModePerm)
	assert.NoError(t, err)
	err = os.MkdirAll(mappedPath2, os.ModePerm)
	assert.NoError(t, err)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testFileSize := int64(131072)
		testFilePath := filepath.Join(homeBasePath, testFileName)
		testFileName1 := "test_file1.dat"
		testFileSize1 := int64(65537)
		testFilePath1 := filepath.Join(homeBasePath, testFileName1)
		testDir := "testdir"
		err = createTestFile(testFilePath, testFileSize)
		assert.NoError(t, err)
		err = createTestFile(testFilePath1, testFileSize1)
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath1, testDir))
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath2, testDir))
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, testFileName1, testFileSize1, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath1, testDir, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(vdirPath1, testDir, testFileName1), testFileSize1, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, path.Join(vdirPath2, testDir, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath1, path.Join(vdirPath2, testDir, testFileName1), testFileSize1, client)
		assert.NoError(t, err)
		err = client.Symlink(testFileName, testFileName+".link")
		assert.NoError(t, err)
		_, err = runSSHCommand(fmt.Sprintf("sftpgo-remove %v", testFileName+".link"), user, usePubKey)
		assert.Error(t, err)
		_, err = runSSHCommand("sftpgo-remove /vdir1", user, usePubKey)
		assert.Error(t, err)
		_, err = runSSHCommand("sftpgo-remove /", user, usePubKey)
		assert.Error(t, err)
		_, err = runSSHCommand("sftpgo-remove", user, usePubKey)
		assert.Error(t, err)
		out, err := runSSHCommand(fmt.Sprintf("sftpgo-remove %v", testFileName), user, usePubKey)
		if assert.NoError(t, err) {
			assert.Equal(t, "OK\n", string(out))
			_, err := client.Stat(testFileName)
			assert.Error(t, err)
			user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
			assert.NoError(t, err)
			assert.Equal(t, 3, user.UsedQuotaFiles)
			assert.Equal(t, testFileSize+2*testFileSize1, user.UsedQuotaSize)
		}
		out, err = runSSHCommand(fmt.Sprintf("sftpgo-remove %v", path.Join(vdirPath1, testDir)), user, usePubKey)
		if assert.NoError(t, err) {
			assert.Equal(t, "OK\n", string(out))
			_, err := client.Stat(path.Join(vdirPath1, testFileName))
			assert.Error(t, err)
			user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
			assert.NoError(t, err)
			assert.Equal(t, 1, user.UsedQuotaFiles)
			assert.Equal(t, testFileSize1, user.UsedQuotaSize)
		}
		_, err = runSSHCommand(fmt.Sprintf("sftpgo-remove %v", vdirPath1), user, usePubKey)
		assert.Error(t, err)
		_, err = runSSHCommand("sftpgo-remove /", user, usePubKey)
		assert.Error(t, err)
		_, err = runSSHCommand("sftpgo-remove missing_file", user, usePubKey)
		assert.Error(t, err)
		if runtime.GOOS != osWindows {
			err = os.Chmod(filepath.Join(mappedPath2, testDir), 0555)
			assert.NoError(t, err)
			_, err = runSSHCommand(fmt.Sprintf("sftpgo-remove %v", path.Join(vdirPath2, testDir)), user, usePubKey)
			assert.Error(t, err)
			err = os.Chmod(filepath.Join(mappedPath2, testDir), 0001)
			assert.NoError(t, err)
			_, err = runSSHCommand(fmt.Sprintf("sftpgo-remove %v", path.Join(vdirPath2, testDir)), user, usePubKey)
			assert.Error(t, err)
			err = os.Chmod(filepath.Join(mappedPath2, testDir), os.ModePerm)
			assert.NoError(t, err)
		}
	}

	// test remove dir with no delete perm
	user.Permissions["/"] = []string{dataprovider.PermUpload, dataprovider.PermDownload, dataprovider.PermListItems}
	_, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	conn, client, err = getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		_, err = runSSHCommand("sftpgo-remove adir", user, usePubKey)
		assert.Error(t, err)
	}

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName1}, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName2}, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath1)
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath2)
	assert.NoError(t, err)
}

func TestSSHRemoveCryptFs(t *testing.T) {
	usePubKey := false
	u := getTestUserWithCryptFs(usePubKey)
	u.QuotaFiles = 100
	mappedPath1 := filepath.Join(os.TempDir(), "vdir1")
	folderName1 := filepath.Base(mappedPath1)
	vdirPath1 := "/vdir1/sub"
	mappedPath2 := filepath.Join(os.TempDir(), "vdir2")
	folderName2 := filepath.Base(mappedPath2)
	vdirPath2 := "/vdir2/sub"
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName1,
			MappedPath: mappedPath1,
		},
		VirtualPath: vdirPath1,
		QuotaFiles:  -1,
		QuotaSize:   -1,
	})
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName2,
			MappedPath: mappedPath2,
			FsConfig: vfs.Filesystem{
				Provider: sdk.CryptedFilesystemProvider,
				CryptConfig: vfs.CryptFsConfig{
					Passphrase: kms.NewPlainSecret(defaultPassword),
				},
			},
		},
		VirtualPath: vdirPath2,
		QuotaFiles:  100,
		QuotaSize:   0,
	})
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		testDir := "tdir"
		err = client.Mkdir(testDir)
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath1, testDir))
		assert.NoError(t, err)
		err = client.Mkdir(path.Join(vdirPath2, testDir))
		assert.NoError(t, err)
		testFileSize := int64(32768)
		testFileSize1 := int64(65536)
		testFileName1 := "test_file1.dat"
		err = writeSFTPFile(testFileName, testFileSize, client)
		assert.NoError(t, err)
		err = writeSFTPFile(testFileName1, testFileSize1, client)
		assert.NoError(t, err)
		err = writeSFTPFile(path.Join(testDir, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = writeSFTPFile(path.Join(testDir, testFileName1), testFileSize1, client)
		assert.NoError(t, err)
		err = writeSFTPFile(path.Join(vdirPath1, testDir, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = writeSFTPFile(path.Join(vdirPath1, testDir, testFileName1), testFileSize1, client)
		assert.NoError(t, err)
		err = writeSFTPFile(path.Join(vdirPath2, testDir, testFileName), testFileSize, client)
		assert.NoError(t, err)
		err = writeSFTPFile(path.Join(vdirPath2, testDir, testFileName1), testFileSize1, client)
		assert.NoError(t, err)
		_, err = runSSHCommand("sftpgo-remove /vdir2", user, usePubKey)
		assert.Error(t, err)
		out, err := runSSHCommand(fmt.Sprintf("sftpgo-remove %v", testFileName), user, usePubKey)
		if assert.NoError(t, err) {
			assert.Equal(t, "OK\n", string(out))
			_, err := client.Stat(testFileName)
			assert.Error(t, err)
		}
		out, err = runSSHCommand(fmt.Sprintf("sftpgo-remove %v", testDir), user, usePubKey)
		if assert.NoError(t, err) {
			assert.Equal(t, "OK\n", string(out))
		}
		out, err = runSSHCommand(fmt.Sprintf("sftpgo-remove %v", path.Join(vdirPath1, testDir)), user, usePubKey)
		if assert.NoError(t, err) {
			assert.Equal(t, "OK\n", string(out))
		}
		out, err = runSSHCommand(fmt.Sprintf("sftpgo-remove %v", path.Join(vdirPath2, testDir, testFileName)), user, usePubKey)
		if assert.NoError(t, err) {
			assert.Equal(t, "OK\n", string(out))
		}
		err = writeSFTPFile(path.Join(vdirPath2, testDir, testFileName), testFileSize, client)
		assert.NoError(t, err)
		out, err = runSSHCommand(fmt.Sprintf("sftpgo-remove %v", path.Join(vdirPath2, testDir)), user, usePubKey)
		if assert.NoError(t, err) {
			assert.Equal(t, "OK\n", string(out))
		}
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, 1, user.UsedQuotaFiles)
		assert.Greater(t, user.UsedQuotaSize, testFileSize1)
	}

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName1}, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName2}, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath1)
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath2)
	assert.NoError(t, err)
}

func TestBasicGitCommands(t *testing.T) {
	if len(gitPath) == 0 || len(sshPath) == 0 || runtime.GOOS == osWindows {
		t.Skip("git and/or ssh command not found or OS is windows, unable to execute this test")
	}
	usePubKey := true
	u := getTestUser(usePubKey)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)

	repoName := "testrepo" //nolint:goconst
	clonePath := filepath.Join(homeBasePath, repoName)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(filepath.Join(homeBasePath, repoName))
	assert.NoError(t, err)
	out, err := initGitRepo(filepath.Join(user.HomeDir, repoName))
	assert.NoError(t, err, "unexpected error, out: %v", string(out))

	out, err = cloneGitRepo(homeBasePath, "/"+repoName, user.Username)
	assert.NoError(t, err, "unexpected error, out: %v", string(out))

	out, err = addFileToGitRepo(clonePath, 128)
	assert.NoError(t, err, "unexpected error, out: %v", string(out))

	user.QuotaFiles = 100000
	_, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)

	out, err = pushToGitRepo(clonePath)
	if !assert.NoError(t, err, "unexpected error, out: %v", string(out)) {
		printLatestLogs(10)
	}

	out, err = addFileToGitRepo(clonePath, 131072)
	assert.NoError(t, err, "unexpected error, out: %v", string(out))

	user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
	assert.NoError(t, err)
	user.QuotaSize = user.UsedQuotaSize + 1
	_, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	out, err = pushToGitRepo(clonePath)
	assert.Error(t, err, "git push must fail if quota is exceeded, out: %v", string(out))

	aDir := filepath.Join(user.GetHomeDir(), repoName, "adir")
	err = os.MkdirAll(aDir, 0001)
	assert.NoError(t, err)
	_, err = pushToGitRepo(clonePath)
	assert.Error(t, err)
	err = os.Chmod(aDir, os.ModePerm)
	assert.NoError(t, err)

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)

	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(clonePath)
	assert.NoError(t, err)
}

func TestGitQuotaVirtualFolders(t *testing.T) {
	if len(gitPath) == 0 || len(sshPath) == 0 || runtime.GOOS == osWindows {
		t.Skip("git and/or ssh command not found or OS is windows, unable to execute this test")
	}
	usePubKey := true
	repoName := "testrepo"
	u := getTestUser(usePubKey)
	u.QuotaFiles = 1
	u.QuotaSize = 131072
	mappedPath := filepath.Join(os.TempDir(), "repo")
	folderName := filepath.Base(mappedPath)
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName,
			MappedPath: mappedPath,
		},
		VirtualPath: "/" + repoName,
		QuotaFiles:  0,
		QuotaSize:   0,
	})
	err := os.MkdirAll(mappedPath, os.ModePerm)
	assert.NoError(t, err)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		// we upload a file so the user is over quota
		defer conn.Close()
		defer client.Close()
		testFilePath := filepath.Join(homeBasePath, testFileName)
		err = createTestFile(testFilePath, u.QuotaSize)
		assert.NoError(t, err)
		err = sftpUploadFile(testFilePath, testFileName, u.QuotaSize, client)
		assert.NoError(t, err)
		err = os.Remove(testFilePath)
		assert.NoError(t, err)
	}

	clonePath := filepath.Join(homeBasePath, repoName)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(filepath.Join(homeBasePath, repoName))
	assert.NoError(t, err)
	out, err := initGitRepo(mappedPath)
	assert.NoError(t, err, "unexpected error, out: %v", string(out))

	out, err = cloneGitRepo(homeBasePath, "/"+repoName, user.Username)
	assert.NoError(t, err, "unexpected error, out: %v", string(out))

	out, err = addFileToGitRepo(clonePath, 128)
	assert.NoError(t, err, "unexpected error, out: %v", string(out))

	out, err = pushToGitRepo(clonePath)
	assert.NoError(t, err, "unexpected error, out: %v", string(out))

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)

	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName}, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath)
	assert.NoError(t, err)
	err = os.RemoveAll(clonePath)
	assert.NoError(t, err)
}

func TestGitErrors(t *testing.T) {
	if len(gitPath) == 0 || len(sshPath) == 0 || runtime.GOOS == osWindows {
		t.Skip("git and/or ssh command not found or OS is windows, unable to execute this test")
	}
	usePubKey := true
	u := getTestUser(usePubKey)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	repoName := "testrepo"
	clonePath := filepath.Join(homeBasePath, repoName)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(filepath.Join(homeBasePath, repoName))
	assert.NoError(t, err)
	out, err := cloneGitRepo(homeBasePath, "/"+repoName, user.Username)
	assert.Error(t, err, "cloning a missing repo must fail, out: %v", string(out))

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(clonePath)
	assert.NoError(t, err)
}

// Start SCP tests
func TestSCPBasicHandling(t *testing.T) {
	if scpPath == "" {
		t.Skip("scp command not found, unable to execute this test")
	}
	usePubKey := true
	u := getTestUser(usePubKey)
	u.QuotaSize = 6553600
	localUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	u = getTestSFTPUser(usePubKey)
	u.QuotaSize = 6553600
	sftpUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)

	testFilePath := filepath.Join(homeBasePath, testFileName)
	testFileSize := int64(131074)
	expectedQuotaSize := testFileSize
	expectedQuotaFiles := 1
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	for _, user := range []dataprovider.User{localUser, sftpUser} {
		remoteUpPath := fmt.Sprintf("%[email protected]:%v", user.Username, "/")
		remoteDownPath := fmt.Sprintf("%[email protected]:%v", user.Username, path.Join("/", testFileName))
		localPath := filepath.Join(homeBasePath, "scp_download.dat")
		// test to download a missing file
		err = scpDownload(localPath, remoteDownPath, false, false)
		assert.Error(t, err, "downloading a missing file via scp must fail")
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, int64(0), user.FirstUpload)
		assert.Equal(t, int64(0), user.FirstDownload)
		err = scpUpload(testFilePath, remoteUpPath, false, false)
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Greater(t, user.FirstUpload, int64(0))
		assert.Equal(t, int64(0), user.FirstDownload)
		err = scpDownload(localPath, remoteDownPath, false, false)
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Greater(t, user.FirstUpload, int64(0))
		assert.Greater(t, user.FirstDownload, int64(0))
		fi, err := os.Stat(localPath)
		if assert.NoError(t, err) {
			assert.Equal(t, testFileSize, fi.Size())
		}
		err = os.Remove(localPath)
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, expectedQuotaFiles, user.UsedQuotaFiles)
		assert.Equal(t, expectedQuotaSize, user.UsedQuotaSize)
		if user.Username == defaultUsername {
			err = os.RemoveAll(user.GetHomeDir())
			assert.NoError(t, err)
			_, err = httpdtest.RemoveUser(user, http.StatusOK)
			assert.NoError(t, err)
			user.Password = defaultPassword
			user.ID = 0
			user.CreatedAt = 0
			_, resp, err := httpdtest.AddUser(user, http.StatusCreated)
			assert.NoError(t, err, string(resp))
		}
	}

	_, err = httpdtest.RemoveUser(sftpUser, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(localUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
}

func TestSCPUploadFileOverwrite(t *testing.T) {
	if scpPath == "" {
		t.Skip("scp command not found, unable to execute this test")
	}
	usePubKey := true
	u := getTestUser(usePubKey)
	u.QuotaFiles = 1000
	localUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	u = getTestSFTPUser(usePubKey)
	u.QuotaFiles = 1000
	sftpUser, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	testFileSize := int64(32760)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	for _, user := range []dataprovider.User{localUser, sftpUser} {
		remoteUpPath := fmt.Sprintf("%[email protected]:%v", user.Username, path.Join("/", testFileName))
		err = scpUpload(testFilePath, remoteUpPath, true, false)
		assert.NoError(t, err)
		// test a new upload that must overwrite the existing file
		err = scpUpload(testFilePath, remoteUpPath, true, false)
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize, user.UsedQuotaSize)
		assert.Equal(t, 1, user.UsedQuotaFiles)

		remoteDownPath := fmt.Sprintf("%[email protected]:%v", user.Username, path.Join("/", testFileName))
		localPath := filepath.Join(homeBasePath, "scp_download.dat")
		err = scpDownload(localPath, remoteDownPath, false, false)
		assert.NoError(t, err)

		fi, err := os.Stat(localPath)
		if assert.NoError(t, err) {
			assert.Equal(t, testFileSize, fi.Size())
		}
		// now create a simlink via SFTP, replace the symlink with a file via SCP and check quota usage
		conn, client, err := getSftpClient(user, usePubKey)
		if assert.NoError(t, err) {
			defer conn.Close()
			defer client.Close()
			err = client.Symlink(testFileName, testFileName+".link")
			assert.NoError(t, err)
			user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
			assert.NoError(t, err)
			assert.Equal(t, testFileSize, user.UsedQuotaSize)
			assert.Equal(t, 1, user.UsedQuotaFiles)
		}
		err = scpUpload(testFilePath, remoteUpPath+".link", true, false)
		assert.NoError(t, err)
		user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
		assert.NoError(t, err)
		assert.Equal(t, testFileSize*2, user.UsedQuotaSize)
		assert.Equal(t, 2, user.UsedQuotaFiles)

		err = os.Remove(localPath)
		assert.NoError(t, err)
		if user.Username == defaultUsername {
			err = os.RemoveAll(user.GetHomeDir())
			assert.NoError(t, err)
			_, err = httpdtest.RemoveUser(user, http.StatusOK)
			assert.NoError(t, err)
			user.Password = defaultPassword
			user.ID = 0
			user.CreatedAt = 0
			_, resp, err := httpdtest.AddUser(user, http.StatusCreated)
			assert.NoError(t, err, string(resp))
		}
	}
	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(sftpUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(localUser, http.StatusOK)
	assert.NoError(t, err)
}

func TestSCPRecursive(t *testing.T) {
	if scpPath == "" {
		t.Skip("scp command not found, unable to execute this test")
	}
	usePubKey := true
	localUser, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	sftpUser, _, err := httpdtest.AddUser(getTestSFTPUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	testBaseDirName := "test_dir"
	testBaseDirPath := filepath.Join(homeBasePath, testBaseDirName)
	testBaseDirDownName := "test_dir_down" //nolint:goconst
	testBaseDirDownPath := filepath.Join(homeBasePath, testBaseDirDownName)
	testFilePath := filepath.Join(homeBasePath, testBaseDirName, testFileName)
	testFilePath1 := filepath.Join(homeBasePath, testBaseDirName, testBaseDirName, testFileName)
	testFileSize := int64(131074)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	err = createTestFile(testFilePath1, testFileSize)
	assert.NoError(t, err)
	for _, user := range []dataprovider.User{localUser, sftpUser} {
		remoteDownPath := fmt.Sprintf("%[email protected]:%v", user.Username, path.Join("/", testBaseDirName))
		// test to download a missing dir
		err = scpDownload(testBaseDirDownPath, remoteDownPath, true, true)
		assert.Error(t, err, "downloading a missing dir via scp must fail")

		remoteUpPath := fmt.Sprintf("%[email protected]:%v", user.Username, "/")
		err = scpUpload(testBaseDirPath, remoteUpPath, true, false)
		assert.NoError(t, err)
		// overwrite existing dir
		err = scpUpload(testBaseDirPath, remoteUpPath, true, false)
		assert.NoError(t, err)
		err = scpDownload(testBaseDirDownPath, remoteDownPath, true, true)
		assert.NoError(t, err)
		// test download without passing -r
		err = scpDownload(testBaseDirDownPath, remoteDownPath, true, false)
		assert.Error(t, err, "recursive download without -r must fail")

		fi, err := os.Stat(filepath.Join(testBaseDirDownPath, testFileName))
		if assert.NoError(t, err) {
			assert.Equal(t, testFileSize, fi.Size())
		}
		fi, err = os.Stat(filepath.Join(testBaseDirDownPath, testBaseDirName, testFileName))
		if assert.NoError(t, err) {
			assert.Equal(t, testFileSize, fi.Size())
		}
		// upload to a non existent dir
		remoteUpPath = fmt.Sprintf("%[email protected]:%v", user.Username, "/non_existent_dir")
		err = scpUpload(testBaseDirPath, remoteUpPath, true, false)
		assert.Error(t, err, "uploading via scp to a non existent dir must fail")

		err = os.RemoveAll(testBaseDirDownPath)
		assert.NoError(t, err)
		if user.Username == defaultUsername {
			err = os.RemoveAll(user.GetHomeDir())
			assert.NoError(t, err)
			_, err = httpdtest.RemoveUser(user, http.StatusOK)
			assert.NoError(t, err)
			user.Password = defaultPassword
			user.ID = 0
			user.CreatedAt = 0
			_, resp, err := httpdtest.AddUser(user, http.StatusCreated)
			assert.NoError(t, err, string(resp))
		}
	}

	err = os.RemoveAll(testBaseDirPath)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(sftpUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(localUser.GetHomeDir())
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(localUser, http.StatusOK)
	assert.NoError(t, err)
}

func TestSCPStartDirectory(t *testing.T) {
	usePubKey := true
	startDir := "/sta rt/dir"
	u := getTestUser(usePubKey)
	u.Filters.StartDirectory = startDir
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)

	testFileSize := int64(131072)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	localPath := filepath.Join(homeBasePath, "scp_download.dat")
	remoteUpPath := fmt.Sprintf("%[email protected]:", user.Username)
	remoteDownPath := fmt.Sprintf("%[email protected]:%v", user.Username, testFileName)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	err = scpUpload(testFilePath, remoteUpPath, false, false)
	assert.NoError(t, err)
	err = scpDownload(localPath, remoteDownPath, false, false)
	assert.NoError(t, err)
	// check that the file is in the start directory
	_, err = os.Stat(filepath.Join(user.HomeDir, startDir, testFileName))
	assert.NoError(t, err)

	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	err = os.Remove(localPath)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestSCPPatternsFilter(t *testing.T) {
	if scpPath == "" {
		t.Skip("scp command not found, unable to execute this test")
	}
	usePubKey := true
	u := getTestUser(usePubKey)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	testFileSize := int64(131072)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	localPath := filepath.Join(homeBasePath, "scp_download.dat")
	remoteUpPath := fmt.Sprintf("%[email protected]:%v", user.Username, "/")
	remoteDownPath := fmt.Sprintf("%[email protected]:%v", user.Username, path.Join("/", testFileName))
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	err = scpUpload(testFilePath, remoteUpPath, false, false)
	assert.NoError(t, err)
	user.Filters.FilePatterns = []sdk.PatternsFilter{
		{
			Path:            "/",
			AllowedPatterns: []string{"*.zip"},
			DeniedPatterns:  []string{},
		},
	}
	_, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	err = scpDownload(localPath, remoteDownPath, false, false)
	assert.Error(t, err, "scp download must fail")
	err = scpUpload(testFilePath, remoteUpPath, false, false)
	assert.Error(t, err, "scp upload must fail")

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	_, err = os.Stat(localPath)
	if err == nil {
		err = os.Remove(localPath)
		assert.NoError(t, err)
	}
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestSCPTransferQuotaLimits(t *testing.T) {
	usePubKey := true
	u := getTestUser(usePubKey)
	u.DownloadDataTransfer = 1
	u.UploadDataTransfer = 1
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	localDownloadPath := filepath.Join(homeBasePath, testDLFileName)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	testFileSize := int64(550000)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)

	remoteUpPath := fmt.Sprintf("%[email protected]:%v", user.Username, "/")
	remoteDownPath := fmt.Sprintf("%[email protected]:%v", user.Username, path.Join("/", testFileName))
	err = scpUpload(testFilePath, remoteUpPath, false, false)
	assert.NoError(t, err)
	err = scpDownload(localDownloadPath, remoteDownPath, false, false)
	assert.NoError(t, err)
	// error while download is active
	err = scpDownload(localDownloadPath, remoteDownPath, false, false)
	assert.Error(t, err)
	// error before starting the download
	err = scpDownload(localDownloadPath, remoteDownPath, false, false)
	assert.Error(t, err)
	// error while upload is active
	err = scpUpload(testFilePath, remoteUpPath, false, false)
	assert.Error(t, err)
	// error before starting the upload
	err = scpUpload(testFilePath, remoteUpPath, false, false)
	assert.Error(t, err)

	user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
	assert.NoError(t, err)
	assert.Greater(t, user.UsedDownloadDataTransfer, int64(1024*1024))
	assert.Greater(t, user.UsedUploadDataTransfer, int64(1024*1024))

	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	err = os.Remove(localDownloadPath)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestSCPUploadMaxSize(t *testing.T) {
	testFileSize := int64(65535)
	usePubKey := true
	u := getTestUser(usePubKey)
	u.Filters.MaxUploadFileSize = testFileSize + 1
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	testFileSize1 := int64(131072)
	testFileName1 := "test_file1.dat"
	testFilePath1 := filepath.Join(homeBasePath, testFileName1)
	err = createTestFile(testFilePath1, testFileSize1)
	assert.NoError(t, err)
	remoteUpPath := fmt.Sprintf("%[email protected]:%v", user.Username, "/")
	err = scpUpload(testFilePath1, remoteUpPath, false, false)
	assert.Error(t, err)
	err = scpUpload(testFilePath, remoteUpPath, false, false)
	assert.NoError(t, err)
	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	err = os.Remove(testFilePath1)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
}

func TestSCPVirtualFolders(t *testing.T) {
	if scpPath == "" {
		t.Skip("scp command not found, unable to execute this test")
	}
	usePubKey := true
	u := getTestUser(usePubKey)
	mappedPath := filepath.Join(os.TempDir(), "vdir")
	folderName := filepath.Base(mappedPath)
	vdirPath := "/vdir"
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName,
			MappedPath: mappedPath,
		},
		VirtualPath: vdirPath,
	})
	err := os.MkdirAll(mappedPath, os.ModePerm)
	assert.NoError(t, err)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	testBaseDirName := "test_dir"
	testBaseDirPath := filepath.Join(homeBasePath, testBaseDirName)
	testBaseDirDownName := "test_dir_down"
	testBaseDirDownPath := filepath.Join(homeBasePath, testBaseDirDownName)
	testFilePath := filepath.Join(homeBasePath, testBaseDirName, testFileName)
	testFilePath1 := filepath.Join(homeBasePath, testBaseDirName, testBaseDirName, testFileName)
	testFileSize := int64(131074)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	err = createTestFile(testFilePath1, testFileSize)
	assert.NoError(t, err)
	remoteDownPath := fmt.Sprintf("%[email protected]:%v", user.Username, vdirPath)
	remoteUpPath := fmt.Sprintf("%[email protected]:%v", user.Username, vdirPath)
	err = scpUpload(testBaseDirPath, remoteUpPath, true, false)
	assert.NoError(t, err)
	err = scpDownload(testBaseDirDownPath, remoteDownPath, true, true)
	assert.NoError(t, err)

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName}, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(testBaseDirPath)
	assert.NoError(t, err)
	err = os.RemoveAll(testBaseDirDownPath)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath)
	assert.NoError(t, err)
}

func TestSCPNestedFolders(t *testing.T) {
	if scpPath == "" {
		t.Skip("scp command not found, unable to execute this test")
	}
	baseUser, resp, err := httpdtest.AddUser(getTestUser(false), http.StatusCreated)
	assert.NoError(t, err, string(resp))
	usePubKey := true
	u := getTestUser(usePubKey)
	u.HomeDir += "_folders"
	u.Username += "_folders"
	mappedPathSFTP := filepath.Join(os.TempDir(), "sftp")
	folderNameSFTP := filepath.Base(mappedPathSFTP)
	vdirSFTPPath := "/vdir/sftp"
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name: folderNameSFTP,
			FsConfig: vfs.Filesystem{
				Provider: sdk.SFTPFilesystemProvider,
				SFTPConfig: vfs.SFTPFsConfig{
					BaseSFTPFsConfig: sdk.BaseSFTPFsConfig{
						Endpoint: sftpServerAddr,
						Username: baseUser.Username,
					},
					Password: kms.NewPlainSecret(defaultPassword),
				},
			},
		},
		VirtualPath: vdirSFTPPath,
	})
	mappedPathCrypt := filepath.Join(os.TempDir(), "crypt")
	folderNameCrypt := filepath.Base(mappedPathCrypt)
	vdirCryptPath := "/vdir/crypt"
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name: folderNameCrypt,
			FsConfig: vfs.Filesystem{
				Provider: sdk.CryptedFilesystemProvider,
				CryptConfig: vfs.CryptFsConfig{
					Passphrase: kms.NewPlainSecret(defaultPassword),
				},
			},
			MappedPath: mappedPathCrypt,
		},
		VirtualPath: vdirCryptPath,
	})

	user, resp, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err, string(resp))
	baseDirDownPath := filepath.Join(os.TempDir(), "basedir-down")
	err = os.Mkdir(baseDirDownPath, os.ModePerm)
	assert.NoError(t, err)
	baseDir := filepath.Join(os.TempDir(), "basedir")
	err = os.Mkdir(baseDir, os.ModePerm)
	assert.NoError(t, err)
	err = os.MkdirAll(filepath.Join(baseDir, vdirSFTPPath), os.ModePerm)
	assert.NoError(t, err)
	err = os.MkdirAll(filepath.Join(baseDir, vdirCryptPath), os.ModePerm)
	assert.NoError(t, err)
	err = createTestFile(filepath.Join(baseDir, vdirSFTPPath, testFileName), 32768)
	assert.NoError(t, err)
	err = createTestFile(filepath.Join(baseDir, vdirCryptPath, testFileName), 65535)
	assert.NoError(t, err)
	err = createTestFile(filepath.Join(baseDir, "vdir", testFileName), 65536)
	assert.NoError(t, err)

	remoteRootPath := fmt.Sprintf("%[email protected]:%v", user.Username, "/")
	err = scpUpload(filepath.Join(baseDir, "vdir"), remoteRootPath, true, false)
	assert.NoError(t, err)

	conn, client, err := getSftpClient(user, usePubKey)
	if assert.NoError(t, err) {
		defer conn.Close()
		defer client.Close()
		info, err := client.Stat(path.Join(vdirCryptPath, testFileName))
		assert.NoError(t, err)
		assert.Equal(t, int64(65535), info.Size())
		info, err = client.Stat(path.Join(vdirSFTPPath, testFileName))
		assert.NoError(t, err)
		assert.Equal(t, int64(32768), info.Size())
		info, err = client.Stat(path.Join("/vdir", testFileName))
		assert.NoError(t, err)
		assert.Equal(t, int64(65536), info.Size())
	}

	err = scpDownload(baseDirDownPath, remoteRootPath, true, true)
	assert.NoError(t, err)

	assert.FileExists(t, filepath.Join(baseDirDownPath, user.Username, "vdir", testFileName))
	assert.FileExists(t, filepath.Join(baseDirDownPath, user.Username, vdirCryptPath, testFileName))
	assert.FileExists(t, filepath.Join(baseDirDownPath, user.Username, vdirSFTPPath, testFileName))

	if runtime.GOOS != osWindows {
		err = os.Chmod(filepath.Join(baseUser.GetHomeDir(), testFileName), 0001)
		assert.NoError(t, err)
		err = scpDownload(baseDirDownPath, remoteRootPath, true, true)
		assert.Error(t, err)
		err = os.Chmod(filepath.Join(baseUser.GetHomeDir(), testFileName), os.ModePerm)
		assert.NoError(t, err)
	}

	// now change the password for the base user, so SFTP folder will not work
	baseUser.Password = defaultPassword + "_mod"
	_, _, err = httpdtest.UpdateUser(baseUser, http.StatusOK, "")
	assert.NoError(t, err)

	err = scpUpload(filepath.Join(baseDir, "vdir"), remoteRootPath, true, false)
	assert.Error(t, err)

	err = scpDownload(baseDirDownPath, remoteRootPath, true, true)
	assert.Error(t, err)

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderNameCrypt}, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderNameSFTP}, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(baseUser, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(baseUser.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPathCrypt)
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPathSFTP)
	assert.NoError(t, err)
	err = os.RemoveAll(baseDir)
	assert.NoError(t, err)
	err = os.RemoveAll(baseDirDownPath)
	assert.NoError(t, err)
}

func TestSCPVirtualFoldersQuota(t *testing.T) {
	if scpPath == "" {
		t.Skip("scp command not found, unable to execute this test")
	}
	usePubKey := true
	u := getTestUser(usePubKey)
	u.QuotaFiles = 100
	mappedPath1 := filepath.Join(os.TempDir(), "vdir1")
	folderName1 := filepath.Base(mappedPath1)
	vdirPath1 := "/vdir1"
	mappedPath2 := filepath.Join(os.TempDir(), "vdir2")
	folderName2 := filepath.Base(mappedPath2)
	vdirPath2 := "/vdir2"
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName1,
			MappedPath: mappedPath1,
		},
		VirtualPath: vdirPath1,
		QuotaFiles:  -1,
		QuotaSize:   -1,
	})
	u.VirtualFolders = append(u.VirtualFolders, vfs.VirtualFolder{
		BaseVirtualFolder: vfs.BaseVirtualFolder{
			Name:       folderName2,
			MappedPath: mappedPath2,
		},
		VirtualPath: vdirPath2,
		QuotaFiles:  0,
		QuotaSize:   0,
	})
	err := os.MkdirAll(mappedPath1, os.ModePerm)
	assert.NoError(t, err)
	err = os.MkdirAll(mappedPath2, os.ModePerm)
	assert.NoError(t, err)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	testBaseDirName := "test_dir"
	testBaseDirPath := filepath.Join(homeBasePath, testBaseDirName)
	testBaseDirDownName := "test_dir_down"
	testBaseDirDownPath := filepath.Join(homeBasePath, testBaseDirDownName)
	testFilePath := filepath.Join(homeBasePath, testBaseDirName, testFileName)
	testFilePath1 := filepath.Join(homeBasePath, testBaseDirName, testBaseDirName, testFileName)
	testFileSize := int64(131074)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	err = createTestFile(testFilePath1, testFileSize)
	assert.NoError(t, err)
	remoteDownPath1 := fmt.Sprintf("%[email protected]:%v", user.Username, path.Join("/", vdirPath1))
	remoteUpPath1 := fmt.Sprintf("%[email protected]:%v", user.Username, vdirPath1)
	remoteDownPath2 := fmt.Sprintf("%[email protected]:%v", user.Username, path.Join("/", vdirPath2))
	remoteUpPath2 := fmt.Sprintf("%[email protected]:%v", user.Username, vdirPath2)
	// we upload two times to test overwrite
	err = scpUpload(testBaseDirPath, remoteUpPath1, true, false)
	assert.NoError(t, err)
	err = scpDownload(testBaseDirDownPath, remoteDownPath1, true, true)
	assert.NoError(t, err)
	err = scpUpload(testBaseDirPath, remoteUpPath1, true, false)
	assert.NoError(t, err)
	err = scpDownload(testBaseDirDownPath, remoteDownPath1, true, true)
	assert.NoError(t, err)
	err = scpUpload(testBaseDirPath, remoteUpPath2, true, false)
	assert.NoError(t, err)
	err = scpDownload(testBaseDirDownPath, remoteDownPath2, true, true)
	assert.NoError(t, err)
	expectedQuotaFiles := 2
	expectedQuotaSize := testFileSize * 2
	user, _, err = httpdtest.GetUserByUsername(user.Username, http.StatusOK)
	assert.NoError(t, err)
	assert.Equal(t, expectedQuotaFiles, user.UsedQuotaFiles)
	assert.Equal(t, expectedQuotaSize, user.UsedQuotaSize)
	f, _, err := httpdtest.GetFolderByName(folderName1, http.StatusOK)
	assert.NoError(t, err)
	assert.Equal(t, expectedQuotaSize, f.UsedQuotaSize)
	assert.Equal(t, expectedQuotaFiles, f.UsedQuotaFiles)
	f, _, err = httpdtest.GetFolderByName(folderName2, http.StatusOK)
	assert.NoError(t, err)
	assert.Equal(t, expectedQuotaSize, f.UsedQuotaSize)
	assert.Equal(t, expectedQuotaFiles, f.UsedQuotaFiles)

	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName1}, http.StatusOK)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveFolder(vfs.BaseVirtualFolder{Name: folderName2}, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(testBaseDirPath)
	assert.NoError(t, err)
	err = os.RemoveAll(testBaseDirDownPath)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath1)
	assert.NoError(t, err)
	err = os.RemoveAll(mappedPath2)
	assert.NoError(t, err)
}

func TestSCPPermsSubDirs(t *testing.T) {
	if scpPath == "" {
		t.Skip("scp command not found, unable to execute this test")
	}
	usePubKey := true
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermAny}
	u.Permissions["/somedir"] = []string{dataprovider.PermListItems, dataprovider.PermUpload}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	localPath := filepath.Join(homeBasePath, "scp_download.dat")
	subPath := filepath.Join(user.GetHomeDir(), "somedir")
	testFileSize := int64(65535)
	err = os.MkdirAll(subPath, os.ModePerm)
	assert.NoError(t, err)
	remoteDownPath := fmt.Sprintf("%[email protected]:%v", user.Username, "/somedir")
	err = scpDownload(localPath, remoteDownPath, false, true)
	assert.Error(t, err, "download a dir with no permissions must fail")
	err = os.Remove(subPath)
	assert.NoError(t, err)
	err = createTestFile(subPath, testFileSize)
	assert.NoError(t, err)
	err = scpDownload(localPath, remoteDownPath, false, false)
	assert.NoError(t, err)
	if runtime.GOOS != osWindows {
		err = os.Chmod(subPath, 0001)
		assert.NoError(t, err)
		err = scpDownload(localPath, remoteDownPath, false, false)
		assert.Error(t, err, "download a file with no system permissions must fail")
		err = os.Chmod(subPath, os.ModePerm)
		assert.NoError(t, err)
	}
	err = os.Remove(localPath)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
}

func TestSCPPermCreateDirs(t *testing.T) {
	if scpPath == "" {
		t.Skip("scp command not found, unable to execute this test")
	}
	usePubKey := true
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermDownload, dataprovider.PermUpload}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	testFileSize := int64(32760)
	testBaseDirName := "test_dir"
	testBaseDirPath := filepath.Join(homeBasePath, testBaseDirName)
	testFilePath1 := filepath.Join(homeBasePath, testBaseDirName, testFileName)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	err = createTestFile(testFilePath1, testFileSize)
	assert.NoError(t, err)
	remoteUpPath := fmt.Sprintf("%[email protected]:%v", user.Username, "/tmp/")
	err = scpUpload(testFilePath, remoteUpPath, true, false)
	assert.Error(t, err, "scp upload must fail, the user cannot create files in a missing dir")
	err = scpUpload(testBaseDirPath, remoteUpPath, true, false)
	assert.Error(t, err, "scp upload must fail, the user cannot create new dirs")

	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	err = os.RemoveAll(testBaseDirPath)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
}

func TestSCPPermUpload(t *testing.T) {
	if scpPath == "" {
		t.Skip("scp command not found, unable to execute this test")
	}
	usePubKey := true
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermDownload, dataprovider.PermCreateDirs}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	testFileSize := int64(65536)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	remoteUpPath := fmt.Sprintf("%[email protected]:%v", user.Username, "/tmp")
	err = scpUpload(testFilePath, remoteUpPath, true, false)
	assert.Error(t, err, "scp upload must fail, the user cannot upload")
	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
}

func TestSCPPermOverwrite(t *testing.T) {
	if scpPath == "" {
		t.Skip("scp command not found, unable to execute this test")
	}
	usePubKey := true
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermUpload, dataprovider.PermCreateDirs}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	testFileSize := int64(65536)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	remoteUpPath := fmt.Sprintf("%[email protected]:%v", user.Username, "/tmp")
	err = scpUpload(testFilePath, remoteUpPath, true, false)
	assert.NoError(t, err)
	err = scpUpload(testFilePath, remoteUpPath, true, false)
	assert.Error(t, err, "scp upload must fail, the user cannot ovewrite existing files")

	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
}

func TestSCPPermDownload(t *testing.T) {
	if scpPath == "" {
		t.Skip("scp command not found, unable to execute this test")
	}
	usePubKey := true
	u := getTestUser(usePubKey)
	u.Permissions["/"] = []string{dataprovider.PermUpload, dataprovider.PermCreateDirs}
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	testFileSize := int64(65537)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	remoteUpPath := fmt.Sprintf("%[email protected]:%v", user.Username, "/")
	err = scpUpload(testFilePath, remoteUpPath, true, false)
	assert.NoError(t, err)
	remoteDownPath := fmt.Sprintf("%[email protected]:%v", user.Username, path.Join("/", testFileName))
	localPath := filepath.Join(homeBasePath, "scp_download.dat")
	err = scpDownload(localPath, remoteDownPath, false, false)
	assert.Error(t, err, "scp download must fail, the user cannot download")

	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
}

func TestSCPQuotaSize(t *testing.T) {
	if scpPath == "" {
		t.Skip("scp command not found, unable to execute this test")
	}
	usePubKey := true
	testFileSize := int64(65535)
	u := getTestUser(usePubKey)
	u.QuotaFiles = 1
	u.QuotaSize = testFileSize + 1
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	testFileSize1 := int64(131072)
	testFileName1 := "test_file1.dat"
	testFilePath1 := filepath.Join(homeBasePath, testFileName1)
	err = createTestFile(testFilePath1, testFileSize1)
	assert.NoError(t, err)
	testFileSize2 := int64(32768)
	testFileName2 := "test_file2.dat"
	testFilePath2 := filepath.Join(homeBasePath, testFileName2)
	err = createTestFile(testFilePath2, testFileSize2)
	assert.NoError(t, err)
	remoteUpPath := fmt.Sprintf("%[email protected]:%v", user.Username, path.Join("/", testFileName))
	err = scpUpload(testFilePath, remoteUpPath, true, false)
	assert.NoError(t, err)
	err = scpUpload(testFilePath, remoteUpPath+".quota", true, false)
	assert.Error(t, err, "user is over quota scp upload must fail")

	// now test quota limits while uploading the current file, we have 1 bytes remaining
	user.QuotaSize = testFileSize + 1
	user.QuotaFiles = 0
	user, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	err = scpUpload(testFilePath2, remoteUpPath+".quota", true, false)
	assert.Error(t, err, "user is over quota scp upload must fail")
	// overwriting an existing file will work if the resulting size is lesser or equal than the current one
	err = scpUpload(testFilePath1, remoteUpPath, true, false)
	assert.Error(t, err)
	err = scpUpload(testFilePath2, remoteUpPath, true, false)
	assert.NoError(t, err)
	err = scpUpload(testFilePath, remoteUpPath, true, false)
	assert.NoError(t, err)
	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	err = os.Remove(testFilePath1)
	assert.NoError(t, err)
	err = os.Remove(testFilePath2)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
}

func TestSCPEscapeHomeDir(t *testing.T) {
	if scpPath == "" {
		t.Skip("scp command not found, unable to execute this test")
	}
	usePubKey := true
	user, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	err = os.MkdirAll(user.GetHomeDir(), os.ModePerm)
	assert.NoError(t, err)
	testDir := "testDir"
	linkPath := filepath.Join(homeBasePath, defaultUsername, testDir)
	err = os.Symlink(homeBasePath, linkPath)
	assert.NoError(t, err)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	testFileSize := int64(65535)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	remoteUpPath := fmt.Sprintf("%[email protected]:%v", user.Username, path.Join(testDir, testDir))
	err = scpUpload(testFilePath, remoteUpPath, false, false)
	assert.Error(t, err, "uploading to a dir with a symlink outside home dir must fail")
	remoteDownPath := fmt.Sprintf("%[email protected]:%v", user.Username, path.Join("/", testDir, testFileName))
	localPath := filepath.Join(homeBasePath, "scp_download.dat")
	err = scpDownload(localPath, remoteDownPath, false, false)
	assert.Error(t, err, "scp download must fail, the requested file has a symlink outside user home")
	remoteDownPath = fmt.Sprintf("%[email protected]:%v", user.Username, path.Join("/", testDir))
	err = scpDownload(homeBasePath, remoteDownPath, false, true)
	assert.Error(t, err, "scp download must fail, the requested dir is a symlink outside user home")

	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
}

func TestSCPUploadPaths(t *testing.T) {
	if scpPath == "" {
		t.Skip("scp command not found, unable to execute this test")
	}
	usePubKey := true
	user, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	testFileSize := int64(65535)
	testDirName := "testDir"
	testDirPath := filepath.Join(user.GetHomeDir(), testDirName)
	err = os.MkdirAll(testDirPath, os.ModePerm)
	assert.NoError(t, err)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	remoteUpPath := fmt.Sprintf("%[email protected]:%v", user.Username, testDirName)
	remoteDownPath := fmt.Sprintf("%[email protected]:%v", user.Username, path.Join(testDirName, testFileName))
	localPath := filepath.Join(homeBasePath, "scp_download.dat")
	err = scpUpload(testFilePath, remoteUpPath, false, false)
	assert.NoError(t, err)
	err = scpDownload(localPath, remoteDownPath, false, false)
	assert.NoError(t, err)
	// upload a file to a missing dir
	remoteUpPath = fmt.Sprintf("%[email protected]:%v", user.Username, path.Join(testDirName, testDirName, testFileName))
	err = scpUpload(testFilePath, remoteUpPath, false, false)
	assert.Error(t, err, "scp upload to a missing dir must fail")

	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	err = os.Remove(localPath)
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
}

func TestSCPOverwriteDirWithFile(t *testing.T) {
	if scpPath == "" {
		t.Skip("scp command not found, unable to execute this test")
	}
	usePubKey := true
	user, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	testFileSize := int64(65535)
	testDirPath := filepath.Join(user.GetHomeDir(), testFileName)
	err = os.MkdirAll(testDirPath, os.ModePerm)
	assert.NoError(t, err)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	remoteUpPath := fmt.Sprintf("%[email protected]:%v", user.Username, "/")
	err = scpUpload(testFilePath, remoteUpPath, false, false)
	assert.Error(t, err, "copying a file over an existing dir must fail")

	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
}

func TestSCPRemoteToRemote(t *testing.T) {
	if scpPath == "" {
		t.Skip("scp command not found, unable to execute this test")
	}
	if runtime.GOOS == osWindows {
		t.Skip("scp between remote hosts is not supported on Windows")
	}
	usePubKey := true
	user, _, err := httpdtest.AddUser(getTestUser(usePubKey), http.StatusCreated)
	assert.NoError(t, err)
	u := getTestUser(usePubKey)
	u.Username += "1"
	u.HomeDir += "1"
	user1, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	testFileSize := int64(65535)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	remoteUpPath := fmt.Sprintf("%[email protected]:%v", user.Username, path.Join("/", testFileName))
	remote1UpPath := fmt.Sprintf("%[email protected]:%v", user1.Username, path.Join("/", testFileName))
	err = scpUpload(testFilePath, remoteUpPath, false, false)
	assert.NoError(t, err)
	err = scpUpload(remoteUpPath, remote1UpPath, false, true)
	assert.NoError(t, err)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
	err = os.RemoveAll(user1.GetHomeDir())
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user1, http.StatusOK)
	assert.NoError(t, err)
}

func TestSCPErrors(t *testing.T) {
	if scpPath == "" {
		t.Skip("scp command not found, unable to execute this test")
	}
	u := getTestUser(true)
	user, _, err := httpdtest.AddUser(u, http.StatusCreated)
	assert.NoError(t, err)
	testFileSize := int64(524288)
	testFilePath := filepath.Join(homeBasePath, testFileName)
	err = createTestFile(testFilePath, testFileSize)
	assert.NoError(t, err)
	remoteUpPath := fmt.Sprintf("%[email protected]:%v", user.Username, "/")
	remoteDownPath := fmt.Sprintf("%[email protected]:%v", user.Username, path.Join("/", testFileName))
	localPath := filepath.Join(homeBasePath, "scp_download.dat")
	err = scpUpload(testFilePath, remoteUpPath, false, false)
	assert.NoError(t, err)
	user.UploadBandwidth = 512
	user.DownloadBandwidth = 512
	_, _, err = httpdtest.UpdateUser(user, http.StatusOK, "")
	assert.NoError(t, err)
	cmd := getScpDownloadCommand(localPath, remoteDownPath, false, false)
	go func() {
		err := cmd.Run()
		assert.Error(t, err, "SCP download must fail")
	}()
	waitForActiveTransfers(t)
	// wait some additional arbitrary time to wait for transfer activity to happen
	// it is need to reach all the code in CheckIdleConnections
	time.Sleep(100 * time.Millisecond)
	err = cmd.Process.Kill()
	assert.NoError(t, err)
	assert.Eventually(t, func() bool { return len(common.Connections.GetStats()) == 0 }, 2*time.Second, 100*time.Millisecond)
	cmd = getScpUploadCommand(testFilePath, remoteUpPath, false, false)
	go func() {
		err := cmd.Run()
		assert.Error(t, err, "SCP upload must fail")
	}()
	waitForActiveTransfers(t)
	// wait some additional arbitrary time to wait for transfer activity to happen
	// it is need to reach all the code in CheckIdleConnections
	time.Sleep(100 * time.Millisecond)
	err = cmd.Process.Kill()
	assert.NoError(t, err)
	assert.Eventually(t, func() bool { return len(common.Connections.GetStats()) == 0 }, 2*time.Second, 100*time.Millisecond)
	err = os.Remove(testFilePath)
	assert.NoError(t, err)
	os.Remove(localPath)
	err = os.RemoveAll(user.GetHomeDir())
	assert.NoError(t, err)
	_, err = httpdtest.RemoveUser(user, http.StatusOK)
	assert.NoError(t, err)
}

// End SCP tests

func waitTCPListening(address string) {
	for {
		conn, err := net.Dial("tcp", address)
		if err != nil {
			logger.WarnToConsole("tcp server %v not listening: %v", address, err)
			time.Sleep(100 * time.Millisecond)
			continue
		}
		logger.InfoToConsole("tcp server %v now listening", address)
		conn.Close()
		break
	}
}

func getTestGroup() dataprovider.Group {
	return dataprovider.Group{
		BaseGroup: sdk.BaseGroup{
			Name:        "test_group",
			Description: "test group description",
		},
	}
}

func getTestUser(usePubKey bool) dataprovider.User {
	user := dataprovider.User{
		BaseUser: sdk.BaseUser{
			Username:       defaultUsername,
			Password:       defaultPassword,
			HomeDir:        filepath.Join(homeBasePath, defaultUsername),
			Status:         1,
			ExpirationDate: 0,
		},
	}
	user.Permissions = make(map[string][]string)
	user.Permissions["/"] = allPerms
	if usePubKey {
		user.PublicKeys = []string{testPubKey}
		user.Password = ""
	}
	return user
}

func getTestSFTPUser(usePubKey bool) dataprovider.User {
	u := getTestUser(usePubKey)
	u.Username = defaultSFTPUsername
	u.FsConfig.Provider = sdk.SFTPFilesystemProvider
	u.FsConfig.SFTPConfig.Endpoint = sftpServerAddr
	u.FsConfig.SFTPConfig.Username = defaultUsername
	u.FsConfig.SFTPConfig.Password = kms.NewPlainSecret(defaultPassword)
	if usePubKey {
		u.FsConfig.SFTPConfig.PrivateKey = kms.NewPlainSecret(testPrivateKey)
		u.FsConfig.SFTPConfig.Fingerprints = hostKeyFPs
	}
	return u
}

func runSSHCommand(command string, user dataprovider.User, usePubKey bool) ([]byte, error) {
	var sshSession *ssh.Session
	var output []byte
	config := &ssh.ClientConfig{
		User: user.Username,
		HostKeyCallback: func(hostname string, remote net.Addr, key ssh.PublicKey) error {
			return nil
		},
	}
	if usePubKey {
		key, err := ssh.ParsePrivateKey([]byte(testPrivateKey))
		if err != nil {
			return output, err
		}
		config.Auth = []ssh.AuthMethod{ssh.PublicKeys(key)}
	} else {
		config.Auth = []ssh.AuthMethod{ssh.Password(defaultPassword)}
	}
	conn, err := ssh.Dial("tcp", sftpServerAddr, config)
	if err != nil {
		return output, err
	}
	defer conn.Close()
	sshSession, err = conn.NewSession()
	if err != nil {
		return output, err
	}
	var stdout, stderr bytes.Buffer
	sshSession.Stdout = &stdout
	sshSession.Stderr = &stderr
	err = sshSession.Run(command)
	if err != nil {
		return nil, fmt.Errorf("failed to run command %v: %v", command, stderr.Bytes())
	}
	return stdout.Bytes(), err
}

func getSignerForUserCert(certBytes []byte) (ssh.Signer, error) {
	signer, err := ssh.ParsePrivateKey([]byte(testPrivateKey))
	if err != nil {
		return nil, err
	}
	cert, _, _, _, err := ssh.ParseAuthorizedKey(certBytes) //nolint:dogsled
	if err != nil {
		return nil, err
	}
	return ssh.NewCertSigner(cert.(*ssh.Certificate), signer)
}

func getSftpClientWithAddr(user dataprovider.User, usePubKey bool, addr string) (*ssh.Client, *sftp.Client, error) {
	var sftpClient *sftp.Client
	config := &ssh.ClientConfig{
		User: user.Username,
		HostKeyCallback: func(hostname string, remote net.Addr, key ssh.PublicKey) error {
			return nil
		},
	}
	if usePubKey {
		signer, err := ssh.ParsePrivateKey([]byte(testPrivateKey))
		if err != nil {
			return nil, nil, err
		}
		config.Auth = []ssh.AuthMethod{ssh.PublicKeys(signer)}
	} else {
		if user.Password != "" {
			if user.Password == "empty" {
				config.Auth = []ssh.AuthMethod{ssh.Password("")}
			} else {
				config.Auth = []ssh.AuthMethod{ssh.Password(user.Password)}
			}
		} else {
			config.Auth = []ssh.AuthMethod{ssh.Password(defaultPassword)}
		}
	}
	conn, err := ssh.Dial("tcp", addr, config)
	if err != nil {
		return conn, sftpClient, err
	}
	sftpClient, err = sftp.NewClient(conn)
	if err != nil {
		conn.Close()
	}
	return conn, sftpClient, err
}

func getSftpClient(user dataprovider.User, usePubKey bool) (*ssh.Client, *sftp.Client, error) {
	return getSftpClientWithAddr(user, usePubKey, sftpServerAddr)
}

func getKeyboardInteractiveSftpClient(user dataprovider.User, answers []string) (*ssh.Client, *sftp.Client, error) {
	var sftpClient *sftp.Client
	config := &ssh.ClientConfig{
		User: user.Username,
		HostKeyCallback: func(hostname string, remote net.Addr, key ssh.PublicKey) error {
			return nil
		},
		Auth: []ssh.AuthMethod{
			ssh.KeyboardInteractive(func(user, instruction string, questions []string, echos []bool) ([]string, error) {
				return answers, nil
			}),
		},
	}
	conn, err := ssh.Dial("tcp", sftpServerAddr, config)
	if err != nil {
		return nil, sftpClient, err
	}
	sftpClient, err = sftp.NewClient(conn)
	if err != nil {
		conn.Close()
	}
	return conn, sftpClient, err
}

func getCustomAuthSftpClient(user dataprovider.User, authMethods []ssh.AuthMethod, addr string) (*ssh.Client, *sftp.Client, error) {
	var sftpClient *sftp.Client
	config := &ssh.ClientConfig{
		User: user.Username,
		HostKeyCallback: func(hostname string, remote net.Addr, key ssh.PublicKey) error {
			return nil
		},
		Auth: authMethods,
	}
	var err error
	var conn *ssh.Client
	if len(addr) > 0 {
		conn, err = ssh.Dial("tcp", addr, config)
	} else {
		conn, err = ssh.Dial("tcp", sftpServerAddr, config)
	}
	if err != nil {
		return conn, sftpClient, err
	}
	sftpClient, err = sftp.NewClient(conn)
	if err != nil {
		conn.Close()
	}
	return conn, sftpClient, err
}

func createTestFile(path string, size int64) error {
	baseDir := filepath.Dir(path)
	if _, err := os.Stat(baseDir); errors.Is(err, fs.ErrNotExist) {
		err = os.MkdirAll(baseDir, os.ModePerm)
		if err != nil {
			return err
		}
	}
	content := make([]byte, size)
	_, err := rand.Read(content)
	if err != nil {
		return err
	}
	return os.WriteFile(path, content, os.ModePerm)
}

func appendToTestFile(path string, size int64) error {
	content := make([]byte, size)
	_, err := rand.Read(content)
	if err != nil {
		return err
	}
	f, err := os.OpenFile(path, os.O_APPEND|os.O_WRONLY, os.ModePerm)
	if err != nil {
		return err
	}
	defer f.Close()
	written, err := io.Copy(f, bytes.NewReader(content))
	if err != nil {
		return err
	}
	if written != size {
		return fmt.Errorf("write error, written: %v/%v", written, size)
	}
	return nil
}

func checkBasicSFTP(client *sftp.Client) error {
	_, err := client.Getwd()
	if err != nil {
		return err
	}
	_, err = client.ReadDir(".")
	return err
}

func writeSFTPFile(name string, size int64, client *sftp.Client) error {
	content := make([]byte, size)
	_, err := rand.Read(content)
	if err != nil {
		return err
	}
	f, err := client.Create(name)
	if err != nil {
		return err
	}
	_, err = io.Copy(f, bytes.NewBuffer(content))
	if err != nil {
		f.Close()
		return err
	}
	err = f.Close()
	if err != nil {
		return err
	}
	info, err := client.Stat(name)
	if err != nil {
		return err
	}
	if info.Size() != size {
		return fmt.Errorf("file size mismatch, wanted %v, actual %v", size, info.Size())
	}
	return nil
}

func sftpUploadFile(localSourcePath string, remoteDestPath string, expectedSize int64, client *sftp.Client) error {
	srcFile, err := os.Open(localSourcePath)
	if err != nil {
		return err
	}
	defer srcFile.Close()
	destFile, err := client.Create(remoteDestPath)
	if err != nil {
		return err
	}
	_, err = io.Copy(destFile, srcFile)
	if err != nil {
		destFile.Close()
		return err
	}
	// we need to close the file to trigger the server side close method
	// we cannot defer closing otherwise Stat will fail for upload atomic mode
	destFile.Close()
	if expectedSize > 0 {
		fi, err := client.Stat(remoteDestPath)
		if err != nil {
			return err
		}
		if fi.Size() != expectedSize {
			return fmt.Errorf("uploaded file size does not match, actual: %v, expected: %v", fi.Size(), expectedSize)
		}
	}
	return err
}

func sftpUploadResumeFile(localSourcePath string, remoteDestPath string, expectedSize int64, invalidOffset bool, //nolint:unparam
	client *sftp.Client) error {
	srcFile, err := os.Open(localSourcePath)
	if err != nil {
		return err
	}
	defer srcFile.Close()
	fi, err := client.Lstat(remoteDestPath)
	if err != nil {
		return err
	}
	if !invalidOffset {
		_, err = srcFile.Seek(fi.Size(), 0)
		if err != nil {
			return err
		}
	}
	destFile, err := client.OpenFile(remoteDestPath, os.O_WRONLY|os.O_APPEND)
	if err != nil {
		return err
	}
	if !invalidOffset {
		_, err = destFile.Seek(fi.Size(), 0)
		if err != nil {
			return err
		}
	}
	_, err = io.Copy(destFile, srcFile)
	if err != nil {
		destFile.Close()
		return err
	}
	// we need to close the file to trigger the server side close method
	// we cannot defer closing otherwise Stat will fail for upload atomic mode
	destFile.Close()
	if expectedSize > 0 {
		fi, err := client.Lstat(remoteDestPath)
		if err != nil {
			return err
		}
		if fi.Size() != expectedSize {
			return fmt.Errorf("uploaded file size does not match, actual: %v, expected: %v", fi.Size(), expectedSize)
		}
	}
	return err
}

func sftpDownloadFile(remoteSourcePath string, localDestPath string, expectedSize int64, client *sftp.Client) error {
	downloadDest, err := os.Create(localDestPath)
	if err != nil {
		return err
	}
	defer downloadDest.Close()
	sftpSrcFile, err := client.Open(remoteSourcePath)
	if err != nil {
		return err
	}
	defer sftpSrcFile.Close()
	_, err = io.Copy(downloadDest, sftpSrcFile)
	if err != nil {
		return err
	}
	err = downloadDest.Sync()
	if err != nil {
		return err
	}
	if expectedSize > 0 {
		fi, err := downloadDest.Stat()
		if err != nil {
			return err
		}
		if fi.Size() != expectedSize {
			return fmt.Errorf("downloaded file size does not match, actual: %v, expected: %v", fi.Size(), expectedSize)
		}
	}
	return err
}

func sftpUploadNonBlocking(localSourcePath string, remoteDestPath string, expectedSize int64, client *sftp.Client) <-chan error {
	c := make(chan error, 1)
	go func() {
		c <- sftpUploadFile(localSourcePath, remoteDestPath, expectedSize, client)
	}()
	return c
}

func sftpDownloadNonBlocking(remoteSourcePath string, localDestPath string, expectedSize int64, client *sftp.Client) <-chan error {
	c := make(chan error, 1)
	go func() {
		c <- sftpDownloadFile(remoteSourcePath, localDestPath, expectedSize, client)
	}()
	return c
}

func scpUpload(localPath, remotePath string, preserveTime, remoteToRemote bool) error {
	cmd := getScpUploadCommand(localPath, remotePath, preserveTime, remoteToRemote)
	return cmd.Run()
}

func scpDownload(localPath, remotePath string, preserveTime, recursive bool) error {
	cmd := getScpDownloadCommand(localPath, remotePath, preserveTime, recursive)
	return cmd.Run()
}

func getScpDownloadCommand(localPath, remotePath string, preserveTime, recursive bool) *exec.Cmd {
	var args []string
	if preserveTime {
		args = append(args, "-p")
	}
	if recursive {
		args = append(args, "-r")
	}
	if scpForce {
		args = append(args, "-O")
	}
	args = append(args, "-P")
	args = append(args, "2022")
	args = append(args, "-o")
	args = append(args, "StrictHostKeyChecking=no")
	args = append(args, "-i")
	args = append(args, privateKeyPath)
	args = append(args, remotePath)
	args = append(args, localPath)
	return exec.Command(scpPath, args...)
}

func getScpUploadCommand(localPath, remotePath string, preserveTime, remoteToRemote bool) *exec.Cmd {
	var args []string
	if remoteToRemote {
		args = append(args, "-3")
	}
	if preserveTime {
		args = append(args, "-p")
	}
	fi, err := os.Stat(localPath)
	if err == nil {
		if fi.IsDir() {
			args = append(args, "-r")
		}
	}
	if scpForce {
		args = append(args, "-O")
	}
	args = append(args, "-P")
	args = append(args, "2022")
	args = append(args, "-o")
	args = append(args, "StrictHostKeyChecking=no")
	args = append(args, "-o")
	args = append(args, "HostKeyAlgorithms=+ssh-rsa")
	args = append(args, "-i")
	args = append(args, privateKeyPath)
	args = append(args, localPath)
	args = append(args, remotePath)
	return exec.Command(scpPath, args...)
}

func computeHashForFile(hasher hash.Hash, path string) (string, error) {
	hash := ""
	f, err := os.Open(path)
	if err != nil {
		return hash, err
	}
	defer f.Close()
	_, err = io.Copy(hasher, f)
	if err == nil {
		hash = fmt.Sprintf("%x", hasher.Sum(nil))
	}
	return hash, err
}

func waitForActiveTransfers(t *testing.T) {
	assert.Eventually(t, func() bool {
		for _, stat := range common.Connections.GetStats() {
			if len(stat.Transfers) > 0 {
				return true
			}
		}
		return false
	}, 1*time.Second, 50*time.Millisecond)
}

func checkSystemCommands() {
	var err error
	gitPath, err = exec.LookPath("git")
	if err != nil {
		logger.Warn(logSender, "", "unable to get git command. GIT tests will be skipped, err: %v", err)
		logger.WarnToConsole("unable to get git command. GIT tests will be skipped, err: %v", err)
		gitPath = ""
	}

	sshPath, err = exec.LookPath("ssh")
	if err != nil {
		logger.Warn(logSender, "", "unable to get ssh command. GIT tests will be skipped, err: %v", err)
		logger.WarnToConsole("unable to get ssh command. GIT tests will be skipped, err: %v", err)
		gitPath = ""
	}
	hookCmdPath, err = exec.LookPath("true")
	if err != nil {
		logger.Warn(logSender, "", "unable to get hook command: %v", err)
		logger.WarnToConsole("unable to get hook command: %v", err)
	}
	scpPath, err = exec.LookPath("scp")
	if err != nil {
		logger.Warn(logSender, "", "unable to get scp command. SCP tests will be skipped, err: %v", err)
		logger.WarnToConsole("unable to get scp command. SCP tests will be skipped, err: %v", err)
		scpPath = ""
	} else {
		ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
		defer cancel()
		cmd := exec.CommandContext(ctx, scpPath, "-O")
		out, _ := cmd.CombinedOutput()
		scpForce = !strings.Contains(string(out), "option -- O")
	}
}

func initGitRepo(path string) ([]byte, error) {
	err := os.MkdirAll(path, os.ModePerm)
	if err != nil {
		return nil, err
	}
	args := []string{"init", "--bare"}
	cmd := exec.Command(gitPath, args...)
	cmd.Dir = path
	return cmd.CombinedOutput()
}

func pushToGitRepo(repoPath string) ([]byte, error) {
	cmd := exec.Command(gitPath, "push")
	cmd.Dir = repoPath
	cmd.Env = append(os.Environ(),
		fmt.Sprintf("GIT_SSH=%v", gitWrapPath))
	return cmd.CombinedOutput()
}

func cloneGitRepo(basePath, remotePath, username string) ([]byte, error) {
	remoteURL := fmt.Sprintf("ssh://%[email protected]:2022%v", username, remotePath)
	args := []string{"clone", remoteURL}
	cmd := exec.Command(gitPath, args...)
	cmd.Dir = basePath
	cmd.Env = append(os.Environ(),
		fmt.Sprintf("GIT_SSH=%v", gitWrapPath))
	return cmd.CombinedOutput()
}

func addFileToGitRepo(repoPath string, fileSize int64) ([]byte, error) {
	path := filepath.Join(repoPath, "test")
	err := createTestFile(path, fileSize)
	if err != nil {
		return []byte(""), err
	}
	cmd := exec.Command(gitPath, "config", "user.email", "[email protected]")
	cmd.Dir = repoPath
	out, err := cmd.CombinedOutput()
	if err != nil {
		return out, err
	}
	cmd = exec.Command(gitPath, "config", "user.name", "testuser")
	cmd.Dir = repoPath
	out, err = cmd.CombinedOutput()
	if err != nil {
		return out, err
	}
	cmd = exec.Command(gitPath, "add", "test")
	cmd.Dir = repoPath
	out, err = cmd.CombinedOutput()
	if err != nil {
		return out, err
	}
	cmd = exec.Command(gitPath, "commit", "-am", "test")
	cmd.Dir = repoPath
	return cmd.CombinedOutput()
}

func getKeyboardInteractiveScriptForBuiltinChecks(addPasscode bool, result int) []byte {
	content := []byte("#!/bin/sh\n\n")
	echos := []bool{false}
	q, _ := json.Marshal([]string{"Password: "})
	e, _ := json.Marshal(echos)
	content = append(content, []byte(fmt.Sprintf("echo '{\"questions\":%v,\"echos\":%v,\"check_password\":1}'\n", string(q), string(e)))...)
	content = append(content, []byte("read ANSWER\n\n")...)
	content = append(content, []byte("if test \"$ANSWER\" != \"OK\"; then\n")...)
	content = append(content, []byte("exit 1\n")...)
	content = append(content, []byte("fi\n\n")...)
	if addPasscode {
		q, _ := json.Marshal([]string{"Passcode: "})
		content = append(content, []byte(fmt.Sprintf("echo '{\"questions\":%v,\"echos\":%v,\"check_password\":2}'\n", string(q), string(e)))...)
		content = append(content, []byte("read ANSWER\n\n")...)
		content = append(content, []byte("if test \"$ANSWER\" != \"OK\"; then\n")...)
		content = append(content, []byte("exit 1\n")...)
		content = append(content, []byte("fi\n\n")...)
	}
	content = append(content, []byte(fmt.Sprintf("echo '{\"auth_result\":%v}'\n", result))...)
	return content
}

func getKeyboardInteractiveScriptContent(questions []string, sleepTime int, nonJSONResponse bool, result int) []byte {
	content := []byte("#!/bin/sh\n\n")
	q, _ := json.Marshal(questions)
	echos := []bool{}
	for index := range questions {
		echos = append(echos, index%2 == 0)
	}
	e, _ := json.Marshal(echos)
	if nonJSONResponse {
		content = append(content, []byte(fmt.Sprintf("echo 'questions: %v echos: %v\n", string(q), string(e)))...)
	} else {
		content = append(content, []byte(fmt.Sprintf("echo '{\"questions\":%v,\"echos\":%v}'\n", string(q), string(e)))...)
	}
	for index := range questions {
		content = append(content, []byte(fmt.Sprintf("read ANSWER%v\n", index))...)
	}
	if sleepTime > 0 {
		content = append(content, []byte(fmt.Sprintf("sleep %v\n", sleepTime))...)
	}
	content = append(content, []byte(fmt.Sprintf("echo '{\"auth_result\":%v}'\n", result))...)
	return content
}

func getExtAuthScriptContent(user dataprovider.User, nonJSONResponse, emptyResponse bool, username string) []byte {
	extAuthContent := []byte("#!/bin/sh\n\n")
	if emptyResponse {
		return extAuthContent
	}
	extAuthContent = append(extAuthContent, []byte(fmt.Sprintf("if test \"$SFTPGO_AUTHD_USERNAME\" = \"%v\"; then\n", user.Username))...)
	if len(username) > 0 {
		user.Username = username
	}
	u, _ := json.Marshal(user)
	if nonJSONResponse {
		extAuthContent = append(extAuthContent, []byte("echo 'text response'\n")...)
	} else {
		extAuthContent = append(extAuthContent, []byte(fmt.Sprintf("echo '%v'\n", string(u)))...)
	}
	extAuthContent = append(extAuthContent, []byte("else\n")...)
	if nonJSONResponse {
		extAuthContent = append(extAuthContent, []byte("echo 'text response'\n")...)
	} else {
		extAuthContent = append(extAuthContent, []byte("echo '{\"username\":\"\"}'\n")...)
	}
	extAuthContent = append(extAuthContent, []byte("fi\n")...)
	return extAuthContent
}

func getPreLoginScriptContent(user dataprovider.User, nonJSONResponse bool) []byte {
	content := []byte("#!/bin/sh\n\n")
	if nonJSONResponse {
		content = append(content, []byte("echo 'text response'\n")...)
		return content
	}
	if len(user.Username) > 0 {
		u, _ := json.Marshal(user)
		content = append(content, []byte(fmt.Sprintf("echo '%v'\n", string(u)))...)
	}
	return content
}

func getExitCodeScriptContent(exitCode int) []byte {
	content := []byte("#!/bin/sh\n\n")
	content = append(content, []byte(fmt.Sprintf("exit %v", exitCode))...)
	return content
}

func getCheckPwdScriptsContents(status int, toVerify string) []byte {
	content := []byte("#!/bin/sh\n\n")
	content = append(content, []byte(fmt.Sprintf("echo '{\"status\":%v,\"to_verify\":\"%v\"}'\n", status, toVerify))...)
	if status > 0 {
		content = append(content, []byte("exit 0")...)
	} else {
		content = append(content, []byte("exit 1")...)
	}
	return content
}

func printLatestLogs(maxNumberOfLines int) {
	var lines []string
	f, err := os.Open(logFilePath)
	if err != nil {
		return
	}
	defer f.Close()
	scanner := bufio.NewScanner(f)
	for scanner.Scan() {
		lines = append(lines, scanner.Text()+"\r\n")
		for len(lines) > maxNumberOfLines {
			lines = lines[1:]
		}
	}
	if scanner.Err() != nil {
		logger.WarnToConsole("Unable to print latest logs: %v", scanner.Err())
		return
	}
	for _, line := range lines {
		logger.DebugToConsole(line)
	}
}

func getHostKeyFingerprint(name string) (string, error) {
	privateBytes, err := os.ReadFile(name)
	if err != nil {
		return "", err
	}

	private, err := ssh.ParsePrivateKey(privateBytes)
	if err != nil {
		return "", err
	}
	return ssh.FingerprintSHA256(private.PublicKey()), nil
}

func getHostKeysFingerprints(hostKeys []string) {
	for _, k := range hostKeys {
		fp, err := getHostKeyFingerprint(filepath.Join(configDir, k))
		if err != nil {
			logger.ErrorToConsole("unable to get fingerprint for host key %#v: %v", k, err)
			os.Exit(1)
		}
		hostKeyFPs = append(hostKeyFPs, fp)
	}
}

func createInitialFiles(scriptArgs string) {
	pubKeyPath = filepath.Join(homeBasePath, "ssh_key.pub")
	privateKeyPath = filepath.Join(homeBasePath, "ssh_key")
	trustedCAUserKey = filepath.Join(homeBasePath, "ca_user_key")
	gitWrapPath = filepath.Join(homeBasePath, "gitwrap.sh")
	extAuthPath = filepath.Join(homeBasePath, "extauth.sh")
	preLoginPath = filepath.Join(homeBasePath, "prelogin.sh")
	postConnectPath = filepath.Join(homeBasePath, "postconnect.sh")
	checkPwdPath = filepath.Join(homeBasePath, "checkpwd.sh")
	preDownloadPath = filepath.Join(homeBasePath, "predownload.sh")
	preUploadPath = filepath.Join(homeBasePath, "preupload.sh")
	revokeUserCerts = filepath.Join(homeBasePath, "revoked_certs.json")
	err := os.WriteFile(pubKeyPath, []byte(testPubKey+"\n"), 0600)
	if err != nil {
		logger.WarnToConsole("unable to save public key to file: %v", err)
	}
	err = os.WriteFile(privateKeyPath, []byte(testPrivateKey+"\n"), 0600)
	if err != nil {
		logger.WarnToConsole("unable to save private key to file: %v", err)
	}
	err = os.WriteFile(gitWrapPath, []byte(fmt.Sprintf("%v -i %v -oStrictHostKeyChecking=no %v\n",
		sshPath, privateKeyPath, scriptArgs)), os.ModePerm)
	if err != nil {
		logger.WarnToConsole("unable to save gitwrap shell script: %v", err)
	}
	err = os.WriteFile(trustedCAUserKey, []byte(testCAUserKey), 0600)
	if err != nil {
		logger.WarnToConsole("unable to save trusted CA user key: %v", err)
	}
	err = os.WriteFile(revokeUserCerts, []byte(`[]`), 0644)
	if err != nil {
		logger.WarnToConsole("unable to save revoked user certs: %v", err)
	}
}