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+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
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+
+                            Preamble
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+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

README.md

@@ -0,0 +1,159 @@
+English | [简体中文](README_sc.md)
+# eu_ex
+
+eu_ex means EUserv_extend. A Python script which can help you renew your free EUserv IPv6 VPS.
+
+This Script can check the VPS amount in your account automatically and renew the VPS if it can be renewed.
+
+## How to Use
+
+1. Install Python3 and dependences, the following command is used in debian/ubuntu for example,
+
+   ```bash
+   #Install Python3
+   apt install python3 python3-pip -y
+   #Intstall dependences
+   pip install requests beautifulsoup4
+   ```
+
+2. It is not recommended to replace the `USERNAME` & `PASSWORD` parameters with yours in `main.py` Line 37-38 directly. Pass them in from environment variables.
+
+   Your can add multiple accounts with single space separated.
+
+3. Your can add multiple mailparser.io parsed data download URL id with single space separated. The download URL id is in `https://files.mailparser.io/d/<download_url_id>`.
+
+4. Pass the **Actions secrets** into the environment variable of your GitHub Action runtime environment. For example, the following environment variables are required.
+
+   ```
+   env:
+       USERNAME: ${{ secrets.USERNAME }}
+       PASSWORD: ${{ secrets.PASSWORD }}
+       # https://mailparser.io   
+       MAILPARSER_DOWNLOAD_URL_ID: ${{ secrets.MAILPARSER_DOWNLOAD_URL_ID }}
+   ```
+
+## Mail forwarding and mailparser settings
+### Mail forwarding
+
+Take gmail as an example, forward emails to [mailparser](https://mailparser.io). It is possible for non-gmail mailboxes to receive emails from euserv, provided that they can be received. Currently outlook/hotmail does not receive it.
+
+- ![gmail_filter_keys](./images/gmail_filter_keys.png)
+
+- ![gmail_filter_setting](./images/gmail_filter_setting.png)
+
+- ![gmail_forward_setting](./images/gmail_forward_setting.png)
+
+### Mailparser settings
+
+- Create new inbox firstly.
+- Create data parsing rules.
+  - mailparser_data_parsing_rules
+   ![mailparser_data_parsing_rules](./images/mailparser_data_parsing_rules.png)
+  - mailparser_data_parsing_rules_pin
+  ![mailparser_data_parsing_rules_pin](./images/mailparser_data_parsing_rules_pin.png)
+  - mailparser_data_parsing_rules_subject
+  ![mailparser_data_parsing_rules_subject](./images/mailparser_data_parsing_rules_subject.png)
+  - mailparser_data_parsing_rules_sender
+  ![mailparser_data_parsing_rules_sender](./images/mailparser_data_parsing_rules_sender.png)
+  - mailparser_data_parsing_rules_receiver
+  ![mailparser_data_parsing_rules_receiver](./images/mailparser_data_parsing_rules_receiver.png)
+- Create parsed data download url
+  - mailparser_parsed_data_downloads
+  ![mailparser_parsed_data_downloads](./images/mailparser_parsed_data_downloads.png)
+- mailparser_parsed_data_downloads_setting
+  ![mailparser_parsed_data_downloads_setting](./images/mailparser_parsed_data_downloads_setting.png)
+- Settings
+  - mailparser_inbox_setting_1
+  ![mailparser_inbox_setting_1](./images/mailparser_inbox_setting_1.png)
+  - mailparser_inbox_setting_2
+  ![mailparser_inbox_setting_2](./images/mailparser_inbox_setting_2.png)
+
+## Final result
+The effect is as shown,
+
+![mailparser_inbox_setting_2](./images/the_final_effect.png)
+
+## TODO
+
+- [x] ~~Validate the `receiver` field parsed by mailparser to reduce malicious email interference.~~ Won't do due to mailparser *Inbox Settings - Email Reception*.
+- [ ] Open pre-trained models to solve the problem of CAPTCHA recognition locally.
+- [ ] Log internationalization and localization.
+
+## Acknowledgement
+
+- Thanks EUserv provides us free IPv6 VPS for learning.
+- Thanks CokeMine & its repository contributors provides us the original *EUserv_extend* script .The internet never forgets, but people do.
+
+## Q&A
+
+1. **Q**: It can be non-gmail mailbox?
+
+   **A**: Can be a non-gmail mailbox，the prerequisite is to receive emails from euserv. Currently outlook/hotmail does not receive it.
+
+2. **Q**: Can n mailboxes use the same mailparser or do I need to apply for n mailparsers to correspond with one?
+
+   **A**: The mailparser free account can set up to 10 inboxes, and these 10 inboxes can correspond to 10 euserv accounts, and there are 10 mailparser parsed data download URLs(ids). So, it depends on whether you have n>10, or n<10. n<10, one mailparsed account is enough, and then the parsed data download URL ids correspond to the registered email accounts of euserv.
+
+3. **Q**: How eu_ex script works?
+
+   **A**: EUserv set the first threshold from the end of September 2021, that is, the login verification code (successful verification status maintained for 24 hours), so from now on, we use the API provided by TrueCaptcha (there is a free amount every day) to identify. Not long after, about the beginning of November 2021, EUserv set a second threshold, which is the email PIN verification when renewing, and here the solution is about two kinds: a. Login to the mailbox to get the email containing EUserv PIN. b. Convert the email into HTTP REST API to get it automatically. Option b is adopted here. It seems that only [Mailparser](https://mailparser.io) and [Zapier Emails Parser](https://parser.zapier.com/) are available in option b for free quota. Option b is clearly better than option a.
+
+## References
+
+### EUserv "PIN for the Confirmation of a Security Check" original mail
+
+```
+From：	     EUserv Support <[email protected]>
+To：	         [email protected]
+Subject：	 EUserv - PIN for the Confirmation of a Security Check
+Content-Type: text/plain; charset = utf-8
+Dear XYZ,
+
+you have just requested a PIN for confirmation of a security check at EUserv. If you have not requested the PIN then ignore this email.
+
+PIN:
+123456
+
+PLEASE NOTE: If you already have requested a new PIN for the same process this PIN is invalid. Also this PIN is only valid within the session in which it has been requested. This means the PIN is invalid if you for example change the browser or if you logout and perform a new login.
+
+
+Sincerely,
+Your customer support EUserv
+
+--
+Web ................: http://www.euserv.com
+Login control panel.: https://support.euserv.com
+FAQ ................: http://faq.euserv.com
+Help & Guides.......: http://wiki.euserv.com
+Community / Forum...: http://forum.euserv.com
+Mailing-Liste ......: http://www.euserv.com/en/?show_contact=mailinglist
+Twitter ............: http://twitter.com/euservhosting
+Facebook ...........: http://www.facebook.com/euservhosting
+--
+
+EUserv Internet
+is a division of
+ISPpro Internet KG
+
+Postal address:
+ISPpro Internet KG
+Division EUserv Internet
+P.O. Box 2224
+07622 Hermsdorf
+GERMANY
+
+Support-Phone: +49 (0) 3641 3101011 (English speaking)
+
+Administration:
+ISPpro Internet KG
+Neue Str. 4
+D-07639 Bad Klosterlausnitz
+GERMANY
+
+Management...............: Dirk Seidel
+Register.................: AG Jena, HRA 202638
+VAT Number...............: 162/156/36600
+Tax office ..............: Jena
+International VAT Number.: DE813856317
+```
+

README_sc.md

@@ -0,0 +1,159 @@
+[English](./README.md) | 简体中文
+# eu_ex
+
+eu_ex 是 EUserv_extend 的简写。一个 Python 脚本，可以帮你续期免费 EUserv IPv6 VPS。
+
+这个脚本可以自动检查你账户中的 VPS 数量，如果可以续期，就为 VPS 续期。
+
+## 如何使用
+
+1. 安装 Python3 和必要的依赖，以下命令在 debian/ubuntu 为例，
+
+   ```bash
+   #Install Python3
+   apt install python3 python3-pip -y
+   #Intstall dependences
+   pip install requests beautifulsoup4
+   ```
+
+2. 不建议在 `main.py` 文件第 37-38 行直接用你的真实值去替换`USERNAME`和`PASSWORD`。可以使用环境变量传入。
+
+   你可以添加多个账户，并以一个空格分隔。
+
+3. 你可以添加多个 mailparser.io 解析数据的下载 URL ID，并以一个空格分隔。下载的 URL ID 在`https://files.mailparser.io/d/<download_url_id>`。
+
+4. 将 **Actions secrets** 传入你的 GitHub Action 运行环境的环境变量。例如，以下环境变量是必需的。
+
+   ```
+   env:
+       USERNAME: ${{ secrets.USERNAME }}
+       PASSWORD: ${{ secrets.PASSWORD }}
+       # https://mailparser.io   
+       MAILPARSER_DOWNLOAD_URL_ID: ${{ secrets.MAILPARSER_DOWNLOAD_URL_ID }}
+   ```
+
+## 邮件转发和 mailparser 设置
+### 邮件转发
+
+以 gmail 为例, 转发邮件至 [mailparser](https://mailparser.io)。可以是非 gmail 邮箱，前提是可以收到 euserv 的邮件。目前 outlook/hotmail 是收不到的。
+
+- ![gmail_filter_keys](./images/gmail_filter_keys.png)
+
+- ![gmail_filter_setting](./images/gmail_filter_setting.png)
+
+- ![gmail_forward_setting](./images/gmail_forward_setting.png)
+
+### Mailparser 设置
+
+- 首先创建新的收件箱。
+- 创建数据解析规则。
+  - 数据解析规则，pin 为必需，其他可选。
+   ![mailparser_data_parsing_rules](./images/mailparser_data_parsing_rules.png)
+  - pin 的解析规则
+  ![mailparser_data_parsing_rules_pin](./images/mailparser_data_parsing_rules_pin.png)
+  - subject 的解析规则
+  ![mailparser_data_parsing_rules_subject](./images/mailparser_data_parsing_rules_subject.png)
+  - sender 的解析规则
+  ![mailparser_data_parsing_rules_sender](./images/mailparser_data_parsing_rules_sender.png)
+  - receiver 的解析规则
+  ![mailparser_data_parsing_rules_receiver](./images/mailparser_data_parsing_rules_receiver.png)
+- 创建解析数据下载 URL
+  - 解析数据下载 URL
+  ![mailparser_parsed_data_downloads](./images/mailparser_parsed_data_downloads.png)
+- 解析数据下载设置
+  ![mailparser_parsed_data_downloads_setting](./images/mailparser_parsed_data_downloads_setting.png)
+- mailparser 收件箱设置（可选，为减少收到 spam 邮件的风险，最好设置）
+  - mailparser 收件箱设置 1
+  ![mailparser_inbox_setting_1](./images/mailparser_inbox_setting_1.png)
+  - mailparser 收件箱设置 2
+  ![mailparser_inbox_setting_2](./images/mailparser_inbox_setting_2.png)
+
+## 最终效果
+效果如图,
+
+![mailparser_inbox_setting_2](./images/the_final_effect.png)
+
+## 待办事项
+
+- [x] ~~验证mailparser解析的`receiver'字段，以减少恶意邮件的干扰。~~ 由于 mailparser *Inbox Settings - Email Reception*，所以不做了。
+- [ ] 开放预训练的模型，在本地，不调用第三方接口就解决验证码识别的问题。
+- [ ] 日志国际化和本地化。
+
+## 鸣谢
+
+- 感谢 EUserv 提供免费的 IPv6 VPS 供我们学习。
+- 感谢 CokeMine 和其仓库贡献者为我们提供的最初 *EUserv_extend* 脚本。互联网永远不会忘记，但人们会。
+
+## Q&A
+
+1. **Q**: 可以非 gmail 邮箱吗?
+
+   **A**: 可以是非 gmail 邮箱，前提是可以收到 euserv 的邮件。目前 outlook/hotmail 是收不到的。
+
+2. **Q**: n 个邮箱能在用同一个 mailparser 还是需要申请 n 个 mailparser 与之一 一对应吗？
+
+   **A**: mailparser free 账号最多可以设置 10 个收件箱，这 10 个收件箱就可以对应 10 个 euserv 账号，也就有了 10 个  mailparser parsed data download URL(id)。所以，这得看你 n>10, 还是 n<10  了。n<10， 一个 mailparsed 账号即可，然后 parsed data download URL id 一 一对应  euserv 的注册邮箱账号。
+
+3. **Q**: 续期脚本是如何工作的？
+
+   **A**: EUserv 从 2021 年 9 月底开始，设置了第一道门槛，那就是登录出现验证码(成功验证状态维持 24 小时)，所以目前就用 TrueCaptcha 提供的 API(每天都有免费额度) 进行识别。没过多久，大概是 2021 年11月初，EUserv 又设置了第二道门槛，就是续期时的邮件 PIN 码验证，这里解决办法就大概两种：a. 登录邮箱获取含 EUserv PIN 的邮件。b. 将邮件转化为 HTTP REST API，自动获取。这里采取的是方案 b。方案 b 中可选的存在免费额度的，好像目前仅有 [Mailparser](https://mailparser.io) 和 [Zapier Emails Parser](https://parser.zapier.com/)。方案 b 明显要优于方案 a。
+
+## 参考信息
+
+### EUserv "PIN for the Confirmation of a Security Check" 原始邮件
+
+```
+From：	     EUserv Support <[email protected]>
+To：	         [email protected]
+Subject：	 EUserv - PIN for the Confirmation of a Security Check
+Content-Type: text/plain; charset = utf-8
+Dear XYZ,
+
+you have just requested a PIN for confirmation of a security check at EUserv. If you have not requested the PIN then ignore this email.
+
+PIN:
+123456
+
+PLEASE NOTE: If you already have requested a new PIN for the same process this PIN is invalid. Also this PIN is only valid within the session in which it has been requested. This means the PIN is invalid if you for example change the browser or if you logout and perform a new login.
+
+
+Sincerely,
+Your customer support EUserv
+
+--
+Web ................: http://www.euserv.com
+Login control panel.: https://support.euserv.com
+FAQ ................: http://faq.euserv.com
+Help & Guides.......: http://wiki.euserv.com
+Community / Forum...: http://forum.euserv.com
+Mailing-Liste ......: http://www.euserv.com/en/?show_contact=mailinglist
+Twitter ............: http://twitter.com/euservhosting
+Facebook ...........: http://www.facebook.com/euservhosting
+--
+
+EUserv Internet
+is a division of
+ISPpro Internet KG
+
+Postal address:
+ISPpro Internet KG
+Division EUserv Internet
+P.O. Box 2224
+07622 Hermsdorf
+GERMANY
+
+Support-Phone: +49 (0) 3641 3101011 (English speaking)
+
+Administration:
+ISPpro Internet KG
+Neue Str. 4
+D-07639 Bad Klosterlausnitz
+GERMANY
+
+Management...............: Dirk Seidel
+Register.................: AG Jena, HRA 202638
+VAT Number...............: 162/156/36600
+Tax office ..............: Jena
+International VAT Number.: DE813856317
+```
+

main.py

@@ -0,0 +1,548 @@
+#!/usr/bin/env python3
+
+#
+# SPDX-FileCopyrightText: (c) 2020-2021 CokeMine & Its repository contributors
+# SPDX-FileCopyrightText: (c) 2021 A beam of light
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+
+"""
+euserv auto-renew script
+
+ChangeLog
+
+v2021.09.30
+- Captcha automatic recognition using TrueCaptcha API
+- Email notification
+- Add login failure retry mechanism
+- reformat log info
+
+v2021.11.06
+- Receive renew PIN(6-digits) using mailparser parsed data download url
+  workflow: auto-forward your EUserv PIN email to your mailparser inbox 
+  -> parsing PIN via mailparser -> get PIN from mailparser
+- Update kc2_security_password_get_token request
+
+v2021.11.26
+- Adjust TrueCaptcha constraint parameters for high availability.
+  Plus, the CAPTCHA of EUserv is currently case-insensitive, so the above adjustment works.
+
+"""
+
+import os
+import re
+import json
+import time
+import base64
+
+from email.mime.application import MIMEApplication
+from email.mime.multipart import MIMEMultipart
+from email.mime.text import MIMEText
+from smtplib import SMTP_SSL, SMTPDataError
+
+import requests
+from bs4 import BeautifulSoup
+
+# 多个账户请使用空格隔开
+USERNAME = os.environ["USERNAME"]  # 用户名或邮箱
+PASSWORD = os.environ["PASSWORD"]  # 密码
+
+# default value is TrueCaptcha demo credential,
+# you can use your own credential via set environment variables:
+# TRUECAPTCHA_USERID and TRUECAPTCHA_APIKEY
+# demo: https://apitruecaptcha.org/demo
+# demo2: https://apitruecaptcha.org/demo2
+# demo apikey also has a limit of 100 times per day
+# {
+# 'error': '101.0 above free usage limit 100 per day and no balance',
+# 'requestId': '7690c065-70e0-4757-839b-5fd8381e65c7'
+# }
+TRUECAPTCHA_USERID = os.environ.get("TRUECAPTCHA_USERID", "arun56")
+TRUECAPTCHA_APIKEY = os.environ.get("TRUECAPTCHA_APIKEY", "wMjXmBIcHcdYqO2RrsVN")
+
+# Extract key data from your emails, automatically. https://mailparser.io 
+# 30 Emails/Month, 10 inboxes and unlimited downloads for free.
+# 多个mailparser下载链接id请使用空格隔开, 顺序与 EUserv 账号/邮箱一一对应
+MAILPARSER_DOWNLOAD_URL_ID = os.environ["MAILPARSER_DOWNLOAD_URL_ID"]
+# mailparser.io parsed data download base url
+MAILPARSER_DOWNLOAD_BASE_URL = "https://files.mailparser.io/d/"
+
+# Telegram Bot Push https://core.telegram.org/bots/api#authorizing-your-bot
+TG_BOT_TOKEN = ""  # 通过 @BotFather 申请获得，示例：1077xxx4424:AAFjv0FcqxxxxxxgEMGfi22B4yh15R5uw
+TG_USER_ID = ""  # 用户、群组或频道 ID，示例：129xxx206
+TG_API_HOST = "https://api.telegram.org"  # 自建 API 反代地址，供网络环境无法访问时使用，网络正常则保持默认
+
+# Email notification
+RECEIVER_EMAIL = os.environ.get("RECEIVER_EMAIL", "")
+YD_EMAIL = os.environ.get("YD_EMAIL", "")
+YD_APP_PWD = os.environ.get("YD_APP_PWD", "")  # yandex mail 使用第三方 APP 授权码
+
+# Server 酱(ServerChan) https://sct.ftqq.com
+# 免费额度: 每天最多发送 5 条, 卡片仅显示标题, 每天 API 最大请求 1000 次, 每分钟最多发送 5 条.
+SERVER_CHAN_SENDKEY = os.environ.get("SERVER_CHAN_SENDKEY", "")  # Server 酱的 SENDKEY，无需推送可忽略
+
+# Magic internet access
+PROXIES = {"http": "http://127.0.0.1:10808", "https": "http://127.0.0.1:10808"}
+
+# Maximum number of login retry
+LOGIN_MAX_RETRY_COUNT = 5
+
+# Waiting time of receiving PIN, units are seconds.
+WAITING_TIME_OF_PIN = 15
+
+# options: True or False
+CHECK_CAPTCHA_SOLVER_USAGE = True
+
+user_agent = (
+    "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) "
+    "Chrome/95.0.4638.69 Safari/537.36"
+)
+
+desp = ""  # 空值
+
+
+def log(info: str):
+    print(info)
+    global desp
+    desp = desp + info + "\n\n"
+
+
+def login_retry(*args, **kwargs):
+    def wrapper(func):
+        def inner(username, password):
+            ret, ret_session = func(username, password)
+            max_retry = kwargs.get("max_retry")
+            # default retry 3 times
+            if not max_retry:
+                max_retry = 3
+            number = 0
+            if ret == "-1":
+                while number < max_retry:
+                    number += 1
+                    if number > 1:
+                        ordinal = lambda n: "{}{}".format(n,"tsnrhtdd"[(n/10%10!=1)*(n%10<4)*n%10::4])
+                        log(f"[EUserv] Login tried the {ordinal(number)} time.")
+                    sess_id, session = func(username, password)
+                    if sess_id != "-1":
+                        return sess_id, session
+                    else:
+                        if number == max_retry:
+                            return sess_id, session
+            else:
+                return ret, ret_session
+
+        return inner
+
+    return wrapper
+
+
+def captcha_solver(captcha_image_url: str, session: requests.session) -> dict:
+    """
+    TrueCaptcha API doc: https://apitruecaptcha.org/api
+    Free to use 100 requests per day.
+    -- response::
+    {
+        "result": "", ==> Or "result": 0
+        "conf": 0.85, 
+        "usage": 0, 
+        "requestId": "ed0006e5-69f0-4617-b698-97dc054f9022", 
+        "version": "dev2"
+    }
+    """
+    response = session.get(captcha_image_url)
+    encoded_string = base64.b64encode(response.content)
+    url = "https://api.apitruecaptcha.org/one/gettext"
+
+    # Since "case": "mixed", "mode": "human" 
+    # can sometimes cause internal errors in the truecaptcha server. 
+    # So a more relaxed constraint(lower/upper & default) is used here.
+    # Plus, the CAPTCHA of EUserv is currently case-insensitive, so the below adjustment works.
+    data = {
+        "userid": TRUECAPTCHA_USERID,
+        "apikey": TRUECAPTCHA_APIKEY,
+        # case sensitivity of text (upper | lower| mixed)
+        "case": "lower",
+        # use human or AI (human | default)
+        "mode": "default",
+        "data": str(encoded_string)[2:-1],
+    }
+    r = requests.post(url=url, json=data)
+    j = json.loads(r.text)
+    return j
+
+
+def handle_captcha_solved_result(solved: dict) -> str:
+    """Since CAPTCHA sometimes appears as a very simple binary arithmetic expression.
+    But since recognition sometimes doesn't show the result of the calculation directly,
+    that's what this function is for.
+    """
+    if "result" in solved:
+        solved_result = solved["result"]
+        if isinstance(solved_result, str):
+            if "RESULT  IS" in solved_result:
+                log("[Captcha Solver] You are using the demo apikey.")
+                print("There is no guarantee that demo apikey will work in the future!")
+                # because using demo apikey
+                text = re.findall(r"RESULT  IS . (.*) .", solved_result)[0]
+            else:
+                # using your own apikey
+                log("[Captcha Solver] You are using your own apikey.")
+                text = solved_result
+            operators = ["X", "x", "+", "-"]
+            if any(x in text for x in operators):
+                for operator in operators:
+                    operator_pos = text.find(operator)
+                    if operator == "x" or operator == "X":
+                        operator = "*"
+                    if operator_pos != -1:
+                        left_part = text[:operator_pos]
+                        right_part = text[operator_pos + 1 :]
+                        if left_part.isdigit() and right_part.isdigit():
+                            return eval(
+                                "{left} {operator} {right}".format(
+                                    left=left_part, operator=operator, right=right_part
+                                )
+                            )
+                        else:
+                            # Because these symbols("X", "x", "+", "-") do not appear at the same time,
+                            # it just contains an arithmetic symbol.
+                            return text
+            else:
+                return text
+        else:
+            print(f"[Captcha Solver] Returned JSON: {solved}")
+            log("[Captcha Solver] Service Exception!")
+            raise ValueError("[Captcha Solver] Service Exception!")
+    else:
+        print(f"[Captcha Solver] Returned JSON: {solved}")
+        log("[Captcha Solver] Failed to find parsed results!")
+        raise KeyError("[Captcha Solver] Failed to find parsed results!")
+
+
+def get_captcha_solver_usage() -> dict:
+    url = "https://api.apitruecaptcha.org/one/getusage"
+
+    params = {
+        "username": TRUECAPTCHA_USERID,
+        "apikey": TRUECAPTCHA_APIKEY,
+    }
+    r = requests.get(url=url, params=params)
+    j = json.loads(r.text)
+    return j
+
+
+def get_pin_from_mailparser(url_id: str) -> str:
+    """
+    response format:
+    [
+      {
+        "id": "83b95f50f6202fb03950afbe00975eab",
+        "received_at": "2021-11-06 02:30:07",  ==> up to mailparser account timezone setting, here is UTC 0000.
+        "processed_at": "2021-11-06 02:30:07",
+        "pin": "123456"
+      }
+    ]
+    """
+    response = requests.get(
+        f"{MAILPARSER_DOWNLOAD_BASE_URL}{url_id}",
+        # Mailparser parsed data download using Basic Authentication.
+        # auth=("<your mailparser username>", "<your mailparser password>")
+    )
+    pin = response.json()[0]["pin"]
+    return pin
+
+
+@login_retry(max_retry=LOGIN_MAX_RETRY_COUNT)
+def login(username: str, password: str) -> (str, requests.session):
+    headers = {"user-agent": user_agent, "origin": "https://www.euserv.com"}
+    url = "https://support.euserv.com/index.iphp"
+    captcha_image_url = "https://support.euserv.com/securimage_show.php"
+    session = requests.Session()
+
+    sess = session.get(url, headers=headers)
+    sess_id = re.findall("PHPSESSID=(\\w{10,100});", str(sess.headers))[0]
+    # visit png
+    logo_png_url = "https://support.euserv.com/pic/logo_small.png"
+    session.get(logo_png_url, headers=headers)
+
+    login_data = {
+        "email": username,
+        "password": password,
+        "form_selected_language": "en",
+        "Submit": "Login",
+        "subaction": "login",
+        "sess_id": sess_id,
+    }
+    f = session.post(url, headers=headers, data=login_data)
+    f.raise_for_status()
+
+    if (
+        f.text.find("Hello") == -1
+        and f.text.find("Confirm or change your customer data here") == -1
+    ):
+        if (
+            f.text.find(
+                "To finish the login process please solve the following captcha."
+            )
+            == -1
+        ):
+            return "-1", session
+        else:
+            log("[Captcha Solver] 进行验证码识别...")
+            solved_result = captcha_solver(captcha_image_url, session)
+            try:
+                captcha_code = handle_captcha_solved_result(solved_result)
+                log("[Captcha Solver] 识别的验证码是: {}".format(captcha_code))
+
+                if CHECK_CAPTCHA_SOLVER_USAGE:
+                    usage = get_captcha_solver_usage()
+                    log(
+                        "[Captcha Solver] current date {0} api usage count: {1}".format(
+                            usage[0]["date"], usage[0]["count"]
+                        )
+                    )
+
+                f2 = session.post(
+                    url,
+                    headers=headers,
+                    data={
+                        "subaction": "login",
+                        "sess_id": sess_id,
+                        "captcha_code": captcha_code,
+                    },
+                )
+                if (
+                    f2.text.find(
+                        "To finish the login process please solve the following captcha."
+                    )
+                    == -1
+                ):
+                    log("[Captcha Solver] 验证通过")
+                    return sess_id, session
+                else:
+                    log("[Captcha Solver] 验证失败")
+                    return "-1", session
+            except (KeyError, ValueError):
+                return "-1", session
+    else:
+        return sess_id, session
+
+
+def get_servers(sess_id: str, session: requests.session) -> {}:
+    d = {}
+    url = "https://support.euserv.com/index.iphp?sess_id=" + sess_id
+    headers = {"user-agent": user_agent, "origin": "https://www.euserv.com"}
+    f = session.get(url=url, headers=headers)
+    f.raise_for_status()
+    soup = BeautifulSoup(f.text, "html.parser")
+    for tr in soup.select(
+        "#kc2_order_customer_orders_tab_content_1 .kc2_order_table.kc2_content_table tr"
+    ):
+        server_id = tr.select(".td-z1-sp1-kc")
+        if not len(server_id) == 1:
+            continue
+        flag = (
+            True
+            if tr.select(".td-z1-sp2-kc .kc2_order_action_container")[0]
+            .get_text()
+            .find("Contract extension possible from")
+            == -1
+            else False
+        )
+        d[server_id[0].get_text()] = flag
+    return d
+
+
+def renew(
+    sess_id: str, session: requests.session, password: str, order_id: str, mailparser_dl_url_id: str
+) -> bool:
+    url = "https://support.euserv.com/index.iphp"
+    headers = {
+        "user-agent": user_agent,
+        "Host": "support.euserv.com",
+        "origin": "https://support.euserv.com",
+        "Referer": "https://support.euserv.com/index.iphp",
+    }
+    data = {
+        "Submit": "Extend contract",
+        "sess_id": sess_id,
+        "ord_no": order_id,
+        "subaction": "choose_order",
+        "choose_order_subaction": "show_contract_details",
+    }
+    session.post(url, headers=headers, data=data)
+
+    # pop up 'Security Check' window, it will trigger 'send PIN' automatically.
+    session.post(
+        url,
+        headers=headers,
+        data={
+            "sess_id": sess_id,
+            "subaction": "show_kc2_security_password_dialog",
+            "prefix": "kc2_customer_contract_details_extend_contract_",
+            "type": "1",
+        },
+    )
+
+    # # trigger 'Send new PIN to your Email-Address' (optional),
+    # new_pin = session.post(url, headers=headers, data={
+    #     "sess_id": sess_id,
+    #     "subaction": "kc2_security_password_send_pin",
+    #     "ident": f"kc2_customer_contract_details_extend_contract_{order_id}"
+    # })
+    # if not json.loads(new_pin.text)["rc"] == "100":
+    #     print("new PIN Not Sended")
+    #     return False
+
+    # sleep WAITING_TIME_OF_PIN seconds waiting for mailparser email parsed PIN
+    time.sleep(WAITING_TIME_OF_PIN)
+    pin = get_pin_from_mailparser(mailparser_dl_url_id)
+    log(f"[MailParser] PIN: {pin}")
+
+    # using PIN instead of password to get token
+    data = {
+        "auth": pin,
+        "sess_id": sess_id,
+        "subaction": "kc2_security_password_get_token",
+        "prefix": "kc2_customer_contract_details_extend_contract_",
+        "type": 1,
+        "ident": f"kc2_customer_contract_details_extend_contract_{order_id}",
+    }
+    f = session.post(url, headers=headers, data=data)
+    f.raise_for_status()
+    if not json.loads(f.text)["rs"] == "success":
+        return False
+    token = json.loads(f.text)["token"]["value"]
+    data = {
+        "sess_id": sess_id,
+        "ord_id": order_id,
+        "subaction": "kc2_customer_contract_details_extend_contract_term",
+        "token": token,
+    }
+    session.post(url, headers=headers, data=data)
+    time.sleep(5)
+    return True
+
+
+def check(sess_id: str, session: requests.session):
+    print("Checking.......")
+    d = get_servers(sess_id, session)
+    flag = True
+    for key, val in d.items():
+        if val:
+            flag = False
+            log("[EUserv] ServerID: %s Renew Failed!" % key)
+
+    if flag:
+        log("[EUserv] ALL Work Done! Enjoy~")
+
+
+# Telegram Bot Push https://core.telegram.org/bots/api#authorizing-your-bot
+def telegram():
+    data = (("chat_id", TG_USER_ID), ("text", "EUserv续费日志\n\n" + desp))
+    response = requests.post(
+        TG_API_HOST + "/bot" + TG_BOT_TOKEN + "/sendMessage", data=data
+    )
+    if response.status_code != 200:
+        print("Telegram Bot 推送失败")
+    else:
+        print("Telegram Bot 推送成功")
+
+
+# Yandex mail notification
+def send_mail_by_yandex(
+    to_email, from_email, subject, text, files, sender_email, sender_password
+):
+    msg = MIMEMultipart()
+    msg["Subject"] = subject
+    msg["From"] = from_email
+    msg["To"] = to_email
+    msg.attach(MIMEText(text, _charset="utf-8"))
+    if files is not None:
+        for file in files:
+            file_name, file_content = file
+            # print(file_name)
+            part = MIMEApplication(file_content)
+            part.add_header(
+                "Content-Disposition", "attachment", filename=("gb18030", "", file_name)
+            )
+            msg.attach(part)
+    s = SMTP_SSL("smtp.yandex.ru", 465)
+    s.login(sender_email, sender_password)
+    try:
+        s.sendmail(msg["From"], msg["To"], msg.as_string())
+    except SMTPDataError as e:
+        raise e
+    finally:
+        s.close()
+
+
+# eMail push
+def email():
+    msg = "EUserv 续费日志\n\n" + desp
+    try:
+        send_mail_by_yandex(
+            RECEIVER_EMAIL, YD_EMAIL, "EUserv 续费日志", msg, None, YD_EMAIL, YD_APP_PWD
+        )
+        print("eMail 推送成功")
+    except requests.exceptions.RequestException as e:
+        print(str(e))
+        print("eMail 推送失败")
+    except SMTPDataError as e1:
+        print(str(e1))
+        print("eMail 推送失败")
+
+
+# Server酱 https://sct.ftqq.com
+def server_chan():
+    data = {
+        "title": "EUserv 续费日志",
+        "desp": desp
+    }
+    response = requests.post(f"https://sctapi.ftqq.com/{SERVER_CHAN_SENDKEY}.send", data=data)
+    if response.status_code != 200:
+        print('Server 酱推送失败')
+    else:
+        print('Server 酱推送成功')
+
+
+if __name__ == "__main__":
+    if not USERNAME or not PASSWORD:
+        log("[EUserv] 你没有添加任何账户")
+        exit(1)
+    user_list = USERNAME.strip().split()
+    passwd_list = PASSWORD.strip().split()
+    mailparser_dl_url_id_list = MAILPARSER_DOWNLOAD_URL_ID.strip().split()
+    if len(user_list) != len(passwd_list):
+        log("[EUserv] The number of usernames and passwords do not match!")
+        exit(1)
+    if len(mailparser_dl_url_id_list) != len(user_list):
+        log("[Mailparser] The number of mailparser_dl_url_ids and usernames do not match!")
+        exit(1)
+    for i in range(len(user_list)):
+        print("*" * 30)
+        log("[EUserv] 正在续费第 %d 个账号" % (i + 1))
+        sessid, s = login(user_list[i], passwd_list[i])
+        if sessid == "-1":
+            log("[EUserv] 第 %d 个账号登陆失败，请检查登录信息" % (i + 1))
+            continue
+        SERVERS = get_servers(sessid, s)
+        log("[EUserv] 检测到第 {} 个账号有 {} 台 VPS，正在尝试续期".format(i + 1, len(SERVERS)))
+        for k, v in SERVERS.items():
+            if v:
+                if not renew(sessid, s, passwd_list[i], k, mailparser_dl_url_id_list[i]):
+                    log("[EUserv] ServerID: %s Renew Error!" % k)
+                else:
+                    log("[EUserv] ServerID: %s has been successfully renewed!" % k)
+            else:
+                log("[EUserv] ServerID: %s does not need to be renewed" % k)
+        time.sleep(15)
+        check(sessid, s)
+        time.sleep(5)
+
+    TG_BOT_TOKEN and TG_USER_ID and TG_API_HOST and telegram()
+    RECEIVER_EMAIL and YD_EMAIL and YD_APP_PWD and email()
+    SERVER_CHAN_SENDKEY and server_chan()
+
+    print("*" * 30)

serverless_function/README.md

@@ -0,0 +1,4 @@
+## Variant for serverless function 
+
+The entry is `main_handler`, and these two dependencies `requests` and `beautifulsoup4` need to be packaged (Compress into .zip file) together with the source code `main.py`, then deploy.
+

serverless_function/main.py

@@ -0,0 +1,553 @@
+#!/usr/bin/env python3
+
+#
+# SPDX-FileCopyrightText: (c) 2020-2021 CokeMine & Its repository contributors
+# SPDX-FileCopyrightText: (c) 2021 A beam of light
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+
+"""
+euserv auto-renew script
+
+ChangeLog
+
+v2021.09.30
+- Captcha automatic recognition using TrueCaptcha API
+- Email notification
+- Add login failure retry mechanism
+- reformat log info
+
+v2021.11.06
+- Receive renew PIN(6-digits) using mailparser parsed data download url
+  workflow: auto-forward your EUserv PIN email to your mailparser inbox 
+  -> parsing PIN via mailparser -> get PIN from mailparser
+- Update kc2_security_password_get_token request
+
+v2021.11.26
+- Adjust TrueCaptcha constraint parameters for high availability.
+  Plus, the CAPTCHA of EUserv is currently case-insensitive, so the above adjustment works.
+
+"""
+
+import os
+import re
+import json
+import time
+import base64
+
+from email.mime.application import MIMEApplication
+from email.mime.multipart import MIMEMultipart
+from email.mime.text import MIMEText
+from smtplib import SMTP_SSL, SMTPDataError
+
+import requests
+from bs4 import BeautifulSoup
+
+# 多个账户请使用空格隔开
+USERNAME = os.environ["USERNAME"]  # 用户名或邮箱
+PASSWORD = os.environ["PASSWORD"]  # 密码
+
+# default value is TrueCaptcha demo credential,
+# you can use your own credential via set environment variables:
+# TRUECAPTCHA_USERID and TRUECAPTCHA_APIKEY
+# demo: https://apitruecaptcha.org/demo
+# demo2: https://apitruecaptcha.org/demo2
+# demo apikey also has a limit of 100 times per day
+# {
+# 'error': '101.0 above free usage limit 100 per day and no balance',
+# 'requestId': '7690c065-70e0-4757-839b-5fd8381e65c7'
+# }
+TRUECAPTCHA_USERID = os.environ.get("TRUECAPTCHA_USERID", "arun56")
+TRUECAPTCHA_APIKEY = os.environ.get("TRUECAPTCHA_APIKEY", "wMjXmBIcHcdYqO2RrsVN")
+
+# Extract key data from your emails, automatically. https://mailparser.io 
+# 30 Emails/Month, 10 inboxes and unlimited downloads for free.
+# 多个mailparser下载链接id请使用空格隔开, 顺序与 EUserv 账号/邮箱一一对应
+MAILPARSER_DOWNLOAD_URL_ID = os.environ["MAILPARSER_DOWNLOAD_URL_ID"]
+# mailparser.io parsed data download base url
+MAILPARSER_DOWNLOAD_BASE_URL = "https://files.mailparser.io/d/"
+
+# Telegram Bot Push https://core.telegram.org/bots/api#authorizing-your-bot
+TG_BOT_TOKEN = ""  # 通过 @BotFather 申请获得，示例：1077xxx4424:AAFjv0FcqxxxxxxgEMGfi22B4yh15R5uw
+TG_USER_ID = ""  # 用户、群组或频道 ID，示例：129xxx206
+TG_API_HOST = "https://api.telegram.org"  # 自建 API 反代地址，供网络环境无法访问时使用，网络正常则保持默认
+
+# Email notification
+RECEIVER_EMAIL = os.environ.get("RECEIVER_EMAIL", "")
+YD_EMAIL = os.environ.get("YD_EMAIL", "")
+YD_APP_PWD = os.environ.get("YD_APP_PWD", "")  # yandex mail 使用第三方 APP 授权码
+
+# Server 酱(ServerChan) https://sct.ftqq.com
+# 免费额度: 每天最多发送 5 条, 卡片仅显示标题, 每天 API 最大请求 1000 次, 每分钟最多发送 5 条.
+SERVER_CHAN_SENDKEY = os.environ.get("SERVER_CHAN_SENDKEY", "")  # Server 酱的 SENDKEY，无需推送可忽略
+
+# Magic internet access
+PROXIES = {"http": "http://127.0.0.1:10808", "https": "http://127.0.0.1:10808"}
+
+# Maximum number of login retry
+LOGIN_MAX_RETRY_COUNT = 5
+
+# Waiting time of receiving PIN, units are seconds.
+WAITING_TIME_OF_PIN = 15
+
+# options: True or False
+CHECK_CAPTCHA_SOLVER_USAGE = True
+
+user_agent = (
+    "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) "
+    "Chrome/95.0.4638.69 Safari/537.36"
+)
+
+desp = ""  # 空值
+
+
+def log(info: str):
+    print(info)
+    global desp
+    desp = desp + info + "\n\n"
+
+
+def login_retry(*args, **kwargs):
+    def wrapper(func):
+        def inner(username, password):
+            ret, ret_session = func(username, password)
+            max_retry = kwargs.get("max_retry")
+            # default retry 3 times
+            if not max_retry:
+                max_retry = 3
+            number = 0
+            if ret == "-1":
+                while number < max_retry:
+                    number += 1
+                    if number > 1:
+                        ordinal = lambda n: "{}{}".format(n,"tsnrhtdd"[(n/10%10!=1)*(n%10<4)*n%10::4])
+                        log(f"[EUserv] Login tried the {ordinal(number)} time.")
+                    sess_id, session = func(username, password)
+                    if sess_id != "-1":
+                        return sess_id, session
+                    else:
+                        if number == max_retry:
+                            return sess_id, session
+            else:
+                return ret, ret_session
+
+        return inner
+
+    return wrapper
+
+
+def captcha_solver(captcha_image_url: str, session: requests.session) -> dict:
+    """
+    TrueCaptcha API doc: https://apitruecaptcha.org/api
+    Free to use 100 requests per day.
+    -- response::
+    {
+        "result": "", ==> Or "result": 0
+        "conf": 0.85, 
+        "usage": 0, 
+        "requestId": "ed0006e5-69f0-4617-b698-97dc054f9022", 
+        "version": "dev2"
+    }
+    """
+    response = session.get(captcha_image_url)
+    encoded_string = base64.b64encode(response.content)
+    url = "https://api.apitruecaptcha.org/one/gettext"
+
+    # Since "case": "mixed", "mode": "human" 
+    # can sometimes cause internal errors in the truecaptcha server. 
+    # So a more relaxed constraint(lower/upper & default) is used here.
+    # Plus, the CAPTCHA of EUserv is currently case-insensitive, so the below adjustment works.
+    data = {
+        "userid": TRUECAPTCHA_USERID,
+        "apikey": TRUECAPTCHA_APIKEY,
+        # case sensitivity of text (upper | lower| mixed)
+        "case": "lower",
+        # use human or AI (human | default)
+        "mode": "default",
+        "data": str(encoded_string)[2:-1],
+    }
+    r = requests.post(url=url, json=data)
+    j = json.loads(r.text)
+    return j
+
+
+def handle_captcha_solved_result(solved: dict) -> str:
+    """Since CAPTCHA sometimes appears as a very simple binary arithmetic expression.
+    But since recognition sometimes doesn't show the result of the calculation directly,
+    that's what this function is for.
+    """
+    if "result" in solved:
+        solved_result = solved["result"]
+        if isinstance(solved_result, str):
+            if "RESULT  IS" in solved_result:
+                log("[Captcha Solver] You are using the demo apikey.")
+                print("There is no guarantee that demo apikey will work in the future!")
+                # because using demo apikey
+                text = re.findall(r"RESULT  IS . (.*) .", solved_result)[0]
+            else:
+                # using your own apikey
+                log("[Captcha Solver] You are using your own apikey.")
+                text = solved_result
+            operators = ["X", "x", "+", "-"]
+            if any(x in text for x in operators):
+                for operator in operators:
+                    operator_pos = text.find(operator)
+                    if operator == "x" or operator == "X":
+                        operator = "*"
+                    if operator_pos != -1:
+                        left_part = text[:operator_pos]
+                        right_part = text[operator_pos + 1 :]
+                        if left_part.isdigit() and right_part.isdigit():
+                            return eval(
+                                "{left} {operator} {right}".format(
+                                    left=left_part, operator=operator, right=right_part
+                                )
+                            )
+                        else:
+                            # Because these symbols("X", "x", "+", "-") do not appear at the same time,
+                            # it just contains an arithmetic symbol.
+                            return text
+            else:
+                return text
+        else:
+            print(f"[Captcha Solver] Returned JSON: {solved}")
+            log("[Captcha Solver] Service Exception!")
+            raise ValueError("[Captcha Solver] Service Exception!")
+    else:
+        print(f"[Captcha Solver] Returned JSON: {solved}")
+        log("[Captcha Solver] Failed to find parsed results!")
+        raise KeyError("[Captcha Solver] Failed to find parsed results!")
+
+
+def get_captcha_solver_usage() -> dict:
+    url = "https://api.apitruecaptcha.org/one/getusage"
+
+    params = {
+        "username": TRUECAPTCHA_USERID,
+        "apikey": TRUECAPTCHA_APIKEY,
+    }
+    r = requests.get(url=url, params=params)
+    j = json.loads(r.text)
+    return j
+
+
+def get_pin_from_mailparser(url_id: str) -> str:
+    """
+    response format:
+    [
+      {
+        "id": "83b95f50f6202fb03950afbe00975eab",
+        "received_at": "2021-11-06 02:30:07",  ==> up to mailparser account timezone setting, here is UTC 0000.
+        "processed_at": "2021-11-06 02:30:07",
+        "pin": "123456"
+      }
+    ]
+    """
+    response = requests.get(
+        f"{MAILPARSER_DOWNLOAD_BASE_URL}{url_id}",
+        # Mailparser parsed data download using Basic Authentication.
+        # auth=("<your mailparser username>", "<your mailparser password>")
+    )
+    pin = response.json()[0]["pin"]
+    return pin
+
+
+@login_retry(max_retry=LOGIN_MAX_RETRY_COUNT)
+def login(username: str, password: str) -> (str, requests.session):
+    headers = {"user-agent": user_agent, "origin": "https://www.euserv.com"}
+    url = "https://support.euserv.com/index.iphp"
+    captcha_image_url = "https://support.euserv.com/securimage_show.php"
+    session = requests.Session()
+
+    sess = session.get(url, headers=headers)
+    sess_id = re.findall("PHPSESSID=(\\w{10,100});", str(sess.headers))[0]
+    # visit png
+    logo_png_url = "https://support.euserv.com/pic/logo_small.png"
+    session.get(logo_png_url, headers=headers)
+
+    login_data = {
+        "email": username,
+        "password": password,
+        "form_selected_language": "en",
+        "Submit": "Login",
+        "subaction": "login",
+        "sess_id": sess_id,
+    }
+    f = session.post(url, headers=headers, data=login_data)
+    f.raise_for_status()
+
+    if (
+        f.text.find("Hello") == -1
+        and f.text.find("Confirm or change your customer data here") == -1
+    ):
+        if (
+            f.text.find(
+                "To finish the login process please solve the following captcha."
+            )
+            == -1
+        ):
+            return "-1", session
+        else:
+            log("[Captcha Solver] 进行验证码识别...")
+            solved_result = captcha_solver(captcha_image_url, session)
+            try:
+                captcha_code = handle_captcha_solved_result(solved_result)
+                log("[Captcha Solver] 识别的验证码是: {}".format(captcha_code))
+
+                if CHECK_CAPTCHA_SOLVER_USAGE:
+                    usage = get_captcha_solver_usage()
+                    log(
+                        "[Captcha Solver] current date {0} api usage count: {1}".format(
+                            usage[0]["date"], usage[0]["count"]
+                        )
+                    )
+
+                f2 = session.post(
+                    url,
+                    headers=headers,
+                    data={
+                        "subaction": "login",
+                        "sess_id": sess_id,
+                        "captcha_code": captcha_code,
+                    },
+                )
+                if (
+                    f2.text.find(
+                        "To finish the login process please solve the following captcha."
+                    )
+                    == -1
+                ):
+                    log("[Captcha Solver] 验证通过")
+                    return sess_id, session
+                else:
+                    log("[Captcha Solver] 验证失败")
+                    return "-1", session
+            except (KeyError, ValueError):
+                return "-1", session
+    else:
+        return sess_id, session
+
+
+def get_servers(sess_id: str, session: requests.session) -> {}:
+    d = {}
+    url = "https://support.euserv.com/index.iphp?sess_id=" + sess_id
+    headers = {"user-agent": user_agent, "origin": "https://www.euserv.com"}
+    f = session.get(url=url, headers=headers)
+    f.raise_for_status()
+    soup = BeautifulSoup(f.text, "html.parser")
+    for tr in soup.select(
+        "#kc2_order_customer_orders_tab_content_1 .kc2_order_table.kc2_content_table tr"
+    ):
+        server_id = tr.select(".td-z1-sp1-kc")
+        if not len(server_id) == 1:
+            continue
+        flag = (
+            True
+            if tr.select(".td-z1-sp2-kc .kc2_order_action_container")[0]
+            .get_text()
+            .find("Contract extension possible from")
+            == -1
+            else False
+        )
+        d[server_id[0].get_text()] = flag
+    return d
+
+
+def renew(
+    sess_id: str, session: requests.session, password: str, order_id: str, mailparser_dl_url_id: str
+) -> bool:
+    url = "https://support.euserv.com/index.iphp"
+    headers = {
+        "user-agent": user_agent,
+        "Host": "support.euserv.com",
+        "origin": "https://support.euserv.com",
+        "Referer": "https://support.euserv.com/index.iphp",
+    }
+    data = {
+        "Submit": "Extend contract",
+        "sess_id": sess_id,
+        "ord_no": order_id,
+        "subaction": "choose_order",
+        "choose_order_subaction": "show_contract_details",
+    }
+    session.post(url, headers=headers, data=data)
+
+    # pop up 'Security Check' window, it will trigger 'send PIN' automatically.
+    session.post(
+        url,
+        headers=headers,
+        data={
+            "sess_id": sess_id,
+            "subaction": "show_kc2_security_password_dialog",
+            "prefix": "kc2_customer_contract_details_extend_contract_",
+            "type": "1",
+        },
+    )
+
+    # # trigger 'Send new PIN to your Email-Address' (optional),
+    # new_pin = session.post(url, headers=headers, data={
+    #     "sess_id": sess_id,
+    #     "subaction": "kc2_security_password_send_pin",
+    #     "ident": f"kc2_customer_contract_details_extend_contract_{order_id}"
+    # })
+    # if not json.loads(new_pin.text)["rc"] == "100":
+    #     print("new PIN Not Sended")
+    #     return False
+
+    # sleep WAITING_TIME_OF_PIN seconds waiting for mailparser email parsed PIN
+    time.sleep(WAITING_TIME_OF_PIN)
+    pin = get_pin_from_mailparser(mailparser_dl_url_id)
+    log(f"[MailParser] PIN: {pin}")
+
+    # using PIN instead of password to get token
+    data = {
+        "auth": pin,
+        "sess_id": sess_id,
+        "subaction": "kc2_security_password_get_token",
+        "prefix": "kc2_customer_contract_details_extend_contract_",
+        "type": 1,
+        "ident": f"kc2_customer_contract_details_extend_contract_{order_id}",
+    }
+    f = session.post(url, headers=headers, data=data)
+    f.raise_for_status()
+    if not json.loads(f.text)["rs"] == "success":
+        return False
+    token = json.loads(f.text)["token"]["value"]
+    data = {
+        "sess_id": sess_id,
+        "ord_id": order_id,
+        "subaction": "kc2_customer_contract_details_extend_contract_term",
+        "token": token,
+    }
+    session.post(url, headers=headers, data=data)
+    time.sleep(5)
+    return True
+
+
+def check(sess_id: str, session: requests.session):
+    print("Checking.......")
+    d = get_servers(sess_id, session)
+    flag = True
+    for key, val in d.items():
+        if val:
+            flag = False
+            log("[EUserv] ServerID: %s Renew Failed!" % key)
+
+    if flag:
+        log("[EUserv] ALL Work Done! Enjoy~")
+
+
+# Telegram Bot Push https://core.telegram.org/bots/api#authorizing-your-bot
+def telegram():
+    data = (("chat_id", TG_USER_ID), ("text", "EUserv续费日志\n\n" + desp))
+    response = requests.post(
+        TG_API_HOST + "/bot" + TG_BOT_TOKEN + "/sendMessage", data=data
+    )
+    if response.status_code != 200:
+        print("Telegram Bot 推送失败")
+    else:
+        print("Telegram Bot 推送成功")
+
+
+# Yandex mail notification
+def send_mail_by_yandex(
+    to_email, from_email, subject, text, files, sender_email, sender_password
+):
+    msg = MIMEMultipart()
+    msg["Subject"] = subject
+    msg["From"] = from_email
+    msg["To"] = to_email
+    msg.attach(MIMEText(text, _charset="utf-8"))
+    if files is not None:
+        for file in files:
+            file_name, file_content = file
+            # print(file_name)
+            part = MIMEApplication(file_content)
+            part.add_header(
+                "Content-Disposition", "attachment", filename=("gb18030", "", file_name)
+            )
+            msg.attach(part)
+    s = SMTP_SSL("smtp.yandex.ru", 465)
+    s.login(sender_email, sender_password)
+    try:
+        s.sendmail(msg["From"], msg["To"], msg.as_string())
+    except SMTPDataError as e:
+        raise e
+    finally:
+        s.close()
+
+
+# eMail push
+def email():
+    msg = "EUserv 续费日志\n\n" + desp
+    try:
+        send_mail_by_yandex(
+            RECEIVER_EMAIL, YD_EMAIL, "EUserv 续费日志", msg, None, YD_EMAIL, YD_APP_PWD
+        )
+        print("eMail 推送成功")
+    except requests.exceptions.RequestException as e:
+        print(str(e))
+        print("eMail 推送失败")
+    except SMTPDataError as e1:
+        print(str(e1))
+        print("eMail 推送失败")
+
+
+# Server酱 https://sct.ftqq.com
+def server_chan():
+    data = {
+        "title": "EUserv 续费日志",
+        "desp": desp
+    }
+    response = requests.post(f"https://sctapi.ftqq.com/{SERVER_CHAN_SENDKEY}.send", data=data)
+    if response.status_code != 200:
+        print('Server 酱推送失败')
+    else:
+        print('Server 酱推送成功')
+
+
+def main_handler(event, context):
+    if not USERNAME or not PASSWORD:
+        log("[EUserv] 你没有添加任何账户")
+        exit(1)
+    user_list = USERNAME.strip().split()
+    passwd_list = PASSWORD.strip().split()
+    mailparser_dl_url_id_list = MAILPARSER_DOWNLOAD_URL_ID.strip().split()
+    if len(user_list) != len(passwd_list):
+        log("[EUserv] The number of usernames and passwords do not match!")
+        exit(1)
+    if len(mailparser_dl_url_id_list) != len(user_list):
+        log("[Mailparser] The number of mailparser_dl_url_ids and usernames do not match!")
+        exit(1)
+    for i in range(len(user_list)):
+        print("*" * 30)
+        log("[EUserv] 正在续费第 %d 个账号" % (i + 1))
+        sessid, s = login(user_list[i], passwd_list[i])
+        if sessid == "-1":
+            log("[EUserv] 第 %d 个账号登陆失败，请检查登录信息" % (i + 1))
+            continue
+        SERVERS = get_servers(sessid, s)
+        log("[EUserv] 检测到第 {} 个账号有 {} 台 VPS，正在尝试续期".format(i + 1, len(SERVERS)))
+        for k, v in SERVERS.items():
+            if v:
+                if not renew(sessid, s, passwd_list[i], k, mailparser_dl_url_id_list[i]):
+                    log("[EUserv] ServerID: %s Renew Error!" % k)
+                else:
+                    log("[EUserv] ServerID: %s has been successfully renewed!" % k)
+            else:
+                log("[EUserv] ServerID: %s does not need to be renewed" % k)
+        time.sleep(15)
+        check(sessid, s)
+        time.sleep(5)
+
+    TG_BOT_TOKEN and TG_USER_ID and TG_API_HOST and telegram()
+    RECEIVER_EMAIL and YD_EMAIL and YD_APP_PWD and email()
+    SERVER_CHAN_SENDKEY and server_chan()
+
+    print("*" * 30)
+
+
+# only for debug
+# if __name__ == '__main__':
+#     main_handler(None, None)