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@@ -0,0 +1,113 @@
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+FindProxyForURL = (function () {
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+ var OmegaPac = require('omega-pac');
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+ var options = {};
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+ var state = {};
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+ var activeProfile = null;
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+ var fallbackResult = 'DIRECT';
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+ var pacCache = {};
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+
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+ init();
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+
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+ return FindProxyForURL;
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+
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+ function FindProxyForURL(url, host, details) {
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+ if (!activeProfile) {
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+ warn('Warning: Proxy script not initialized on handling: ' + url);
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+ return fallbackResult;
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+ }
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+ // Moz: Neither path or query is included url regardless of scheme for now.
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+ // This is even more strict than Chromium restricting HTTPS URLs.
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+ // Therefore, it leads to different behavior than the icon and badge.
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+ // https://bugzilla.mozilla.org/show_bug.cgi?id=1337001
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+ var request = OmegaPac.Conditions.requestFromUrl(url);
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+ var profile = activeProfile;
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+ var matchResult, next;
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+ while (profile) {
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+ matchResult = OmegaPac.Profiles.match(profile, request)
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+ if (!matchResult) {
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+ if (profile.profileType === 'DirectProfile') {
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+ return 'DIRECT';
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+ } else if (profile.pacScript) {
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+ return runPacProfile(profile.pacScript);
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+ } else {
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+ warn('Warning: Unsupported profile: ' + profile.profileType);
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+ return fallbackResult;
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+ }
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+ }
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+
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+ if (Array.isArray(matchResult)) {
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+ next = matchResult[0];
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+ // TODO: Maybe also return user/pass if Mozilla supports it or it ends
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+ // up standardized in WebExtensions in the future.
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+ // MOZ: Mozilla has a bug tracked for user/pass in PAC return value.
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+ // https://bugzilla.mozilla.org/show_bug.cgi?id=1319641
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+ if (next.charCodeAt(0) !== 43) {
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+ // MOZ: HTTPS proxies are supported under the prefix PROXY.
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+ // https://dxr.mozilla.org/mozilla-central/source/toolkit/components/extensions/ProxyScriptContext.jsm#180
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+ return next.replace(/HTTPS /g, 'PROXY ');
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+ }
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+ } else if (matchResult.profileName) {
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+ next = OmegaPac.Profiles.nameAsKey(matchResult.profileName)
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+ } else {
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+ return fallbackResult;
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+ }
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+ profile = OmegaPac.Profiles.byKey(next, options)
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+ }
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+ warn('Warning: Cannot find profile: ' + next);
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+ return fallbackResult;
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+ }
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+
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+ function runPacProfile(profile) {
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+ var cached = pacCache[profile.name];
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+ if (!cached || cached.revision !== profile.revision) {
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+ // https://github.com/FelisCatus/SwitchyOmega/issues/390
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+ var body = ';\n' + profile.pacScript + '\n\n/* End of PAC */;'
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+ body += 'return FindProxyForURL';
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+ var func = new Function(body).call(this);
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+
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+ if (typeof func !== 'function') {
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+ warn('Warning: Cannot compile pacScript: ' + profile.name);
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+ func = function() { return fallbackResult; };
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+ }
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+ cached = {func: func, revision: profile.revision}
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+ pacCache[cacheKey] = cached;
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+ }
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+ try {
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+ // Moz: Most scripts probably won't run without global PAC functions.
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+ // Example: dnsDomainIs, shExpMatch, isInNet.
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+ // https://bugzilla.mozilla.org/show_bug.cgi?id=1353510
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+ return cached.func.call(this);
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+ } catch (ex) {
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+ warn('Warning: Error occured in pacScript: ' + profile.name, ex);
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+ return fallbackResult;
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+ }
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+ }
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+
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+ function warn(message, error) {
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+ // We don't have console here and alert is not implemented.
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+ // Throwing and messaging seems to be the only ways to communicate.
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+ // MOZ: alert(): https://bugzilla.mozilla.org/show_bug.cgi?id=1353510
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+ browser.runtime.sendMessage({
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+ event: 'proxyScriptLog',
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+ message: message,
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+ error: error,
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+ level: 'warn',
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+ });
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+ }
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+
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+ function init() {
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+ browser.runtime.sendMessage({event: 'proxyScriptLoaded'});
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+ browser.runtime.onMessage.addListener(function(message) {
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+ if (message.event === 'proxyScriptStateChanged') {
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+ state = message.state;
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+ options = message.options;
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+ if (!state.currentProfileName) {
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+ activeProfile = state.tempProfile;
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+ } else {
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+ activeProfile = OmegaPac.Profiles.byName(state.currentProfileName,
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+ options);
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+ }
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+ }
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+ });
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+ }
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+})();
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FelisCatus