mirror of
https://github.com/Feodor2/Mypal68.git
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408 lines
12 KiB
JavaScript
408 lines
12 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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/**
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* This script contains the minimum, skeleton content process code that we need
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* in order to lazily load other extension modules when they are first
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* necessary. Anything which is not likely to be needed immediately, or shortly
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* after startup, in *every* browser process live outside of this file.
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*/
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var EXPORTED_SYMBOLS = ["ExtensionProcessScript"];
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const { MessageChannel } = ChromeUtils.import(
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"resource://gre/modules/MessageChannel.jsm"
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);
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const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
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const { XPCOMUtils } = ChromeUtils.import(
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"resource://gre/modules/XPCOMUtils.jsm"
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);
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XPCOMUtils.defineLazyModuleGetters(this, {
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ExtensionChild: "resource://gre/modules/ExtensionChild.jsm",
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ExtensionCommon: "resource://gre/modules/ExtensionCommon.jsm",
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ExtensionContent: "resource://gre/modules/ExtensionContent.jsm",
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ExtensionPageChild: "resource://gre/modules/ExtensionPageChild.jsm",
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});
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const { ExtensionUtils } = ChromeUtils.import(
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"resource://gre/modules/ExtensionUtils.jsm"
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);
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XPCOMUtils.defineLazyGetter(this, "console", () =>
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ExtensionCommon.getConsole()
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);
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const { DefaultWeakMap, getInnerWindowID } = ExtensionUtils;
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const { sharedData } = Services.cpmm;
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function getData(extension, key = "") {
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return sharedData.get(`extension/${extension.id}/${key}`);
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}
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// We need to avoid touching Services.appinfo here in order to prevent
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// the wrong version from being cached during xpcshell test startup.
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// eslint-disable-next-line mozilla/use-services
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const appinfo = Cc["@mozilla.org/xre/app-info;1"].getService(Ci.nsIXULRuntime);
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const isContentProcess = appinfo.processType == appinfo.PROCESS_TYPE_CONTENT;
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var extensions = new DefaultWeakMap(policy => {
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return new ExtensionChild.BrowserExtensionContent(policy);
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});
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var pendingExtensions = new Map();
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var ExtensionManager;
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class ExtensionGlobal {
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constructor(global) {
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this.global = global;
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this.global.addMessageListener("Extension:SetFrameData", this);
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this.frameData = null;
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MessageChannel.addListener(global, "Extension:Capture", this);
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MessageChannel.addListener(global, "Extension:DetectLanguage", this);
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MessageChannel.addListener(global, "Extension:Execute", this);
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MessageChannel.addListener(global, "WebNavigation:GetFrame", this);
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MessageChannel.addListener(global, "WebNavigation:GetAllFrames", this);
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}
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get messageFilterStrict() {
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return {
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innerWindowID: getInnerWindowID(this.global.content),
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};
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}
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getFrameData(force = false) {
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if (!this.frameData && force) {
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this.frameData = this.global.sendSyncMessage(
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"Extension:GetTabAndWindowId"
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)[0];
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}
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return this.frameData;
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}
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receiveMessage({ target, messageName, recipient, data, name }) {
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switch (name) {
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case "Extension:SetFrameData":
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if (this.frameData) {
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Object.assign(this.frameData, data);
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} else {
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this.frameData = data;
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}
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if (data.viewType && WebExtensionPolicy.isExtensionProcess) {
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ExtensionPageChild.expectViewLoad(this.global, data.viewType);
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}
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return;
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}
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// SetFrameData does not have a recipient extension, or it would be
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// an extension process. Anything following this point must have
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// a recipient extension, so check access to the window.
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let policy = WebExtensionPolicy.getByID(recipient.extensionId);
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if (!policy.canAccessWindow(this.global.content)) {
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throw new Error("Extension cannot access window");
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}
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return ExtensionContent.receiveMessage(
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this.global,
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messageName,
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target,
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data,
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recipient
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);
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}
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}
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ExtensionManager = {
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// WeakMap<WebExtensionPolicy, Map<string, WebExtensionContentScript>>
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registeredContentScripts: new DefaultWeakMap(policy => new Map()),
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globals: new WeakMap(),
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init() {
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MessageChannel.setupMessageManagers([Services.cpmm]);
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Services.cpmm.addMessageListener("Extension:Startup", this);
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Services.cpmm.addMessageListener("Extension:Shutdown", this);
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Services.cpmm.addMessageListener("Extension:FlushJarCache", this);
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Services.cpmm.addMessageListener("Extension:RegisterContentScript", this);
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Services.cpmm.addMessageListener(
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"Extension:UnregisterContentScripts",
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this
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);
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// eslint-disable-next-line mozilla/balanced-listeners
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Services.obs.addObserver(
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global => this.globals.set(global, new ExtensionGlobal(global)),
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"tab-content-frameloader-created"
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);
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this.updateStubExtensions();
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for (let id of sharedData.get("extensions/activeIDs") || []) {
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this.initExtension(getData({ id }));
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}
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},
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initStubPolicy(id, data) {
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let resolveReadyPromise;
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let readyPromise = new Promise(resolve => {
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resolveReadyPromise = resolve;
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});
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let policy = new WebExtensionPolicy({
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id,
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localizeCallback() {},
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readyPromise,
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allowedOrigins: new MatchPatternSet([]),
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...data,
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});
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try {
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policy.active = true;
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pendingExtensions.set(id, { policy, resolveReadyPromise });
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} catch (e) {
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Cu.reportError(e);
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}
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},
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updateStubExtensions() {
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for (let [id, data] of sharedData.get("extensions/pending") || []) {
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if (!pendingExtensions.has(id)) {
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this.initStubPolicy(id, data);
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}
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}
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},
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initExtensionPolicy(extension) {
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let policy = WebExtensionPolicy.getByID(extension.id);
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if (!policy || pendingExtensions.has(extension.id)) {
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let localizeCallback;
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if (extension.localize) {
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// We have a real Extension object.
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localizeCallback = extension.localize.bind(extension);
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} else {
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// We have serialized extension data;
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localizeCallback = str => extensions.get(policy).localize(str);
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}
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let { backgroundScripts } = extension;
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if (!backgroundScripts && WebExtensionPolicy.isExtensionProcess) {
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({ backgroundScripts } = getData(extension, "extendedData") || {});
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}
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policy = new WebExtensionPolicy({
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id: extension.id,
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mozExtensionHostname: extension.uuid,
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name: extension.name,
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baseURL: extension.resourceURL,
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isPrivileged: extension.isPrivileged,
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permissions: extension.permissions,
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allowedOrigins: extension.whiteListedHosts,
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webAccessibleResources: extension.webAccessibleResources,
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extensionPageCSP: extension.extensionPageCSP,
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contentScriptCSP: extension.contentScriptCSP,
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localizeCallback,
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backgroundScripts,
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contentScripts: extension.contentScripts,
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});
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policy.debugName = `${JSON.stringify(policy.name)} (ID: ${
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policy.id
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}, ${policy.getURL()})`;
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// Register any existent dynamically registered content script for the extension
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// when a content process is started for the first time (which also cover
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// a content process that crashed and it has been recreated).
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const registeredContentScripts = this.registeredContentScripts.get(
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policy
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);
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for (let [scriptId, options] of getData(extension, "contentScripts") ||
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[]) {
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const script = new WebExtensionContentScript(policy, options);
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// If the script is a userScript, add the additional userScriptOptions
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// property to the WebExtensionContentScript instance.
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if ("userScriptOptions" in options) {
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script.userScriptOptions = options.userScriptOptions;
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}
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policy.registerContentScript(script);
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registeredContentScripts.set(scriptId, script);
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}
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let stub = pendingExtensions.get(extension.id);
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if (stub) {
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pendingExtensions.delete(extension.id);
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stub.policy.active = false;
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stub.resolveReadyPromise(policy);
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}
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policy.active = true;
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policy.instanceId = extension.instanceId;
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policy.optionalPermissions = extension.optionalPermissions;
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}
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return policy;
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},
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initExtension(data) {
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if (typeof data === "string") {
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data = getData({ id: data });
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}
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let policy = this.initExtensionPolicy(data);
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policy.injectContentScripts();
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},
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handleEvent(event) {
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if (
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event.type === "change" &&
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event.changedKeys.includes("extensions/pending")
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) {
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this.updateStubExtensions();
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}
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},
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receiveMessage({ name, data }) {
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try {
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switch (name) {
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case "Extension:Startup":
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this.initExtension(data);
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break;
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case "Extension:Shutdown": {
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let policy = WebExtensionPolicy.getByID(data.id);
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if (policy) {
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if (extensions.has(policy)) {
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extensions.get(policy).shutdown();
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}
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if (isContentProcess) {
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policy.active = false;
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}
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}
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break;
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}
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case "Extension:FlushJarCache":
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ExtensionUtils.flushJarCache(data.path);
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break;
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case "Extension:RegisterContentScript": {
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let policy = WebExtensionPolicy.getByID(data.id);
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if (policy) {
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const registeredContentScripts = this.registeredContentScripts.get(
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policy
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);
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const type =
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"userScriptOptions" in data.options
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? "userScript"
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: "contentScript";
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if (registeredContentScripts.has(data.scriptId)) {
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Cu.reportError(
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new Error(
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`Registering ${type} ${data.scriptId} on ${
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data.id
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} more than once`
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)
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);
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} else {
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const script = new WebExtensionContentScript(
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policy,
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data.options
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);
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// If the script is a userScript, add the additional userScriptOptions
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// property to the WebExtensionContentScript instance.
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if (type === "userScript") {
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script.userScriptOptions = data.options.userScriptOptions;
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}
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policy.registerContentScript(script);
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registeredContentScripts.set(data.scriptId, script);
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}
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}
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break;
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}
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case "Extension:UnregisterContentScripts": {
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let policy = WebExtensionPolicy.getByID(data.id);
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if (policy) {
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const registeredContentScripts = this.registeredContentScripts.get(
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policy
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);
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for (const scriptId of data.scriptIds) {
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const script = registeredContentScripts.get(scriptId);
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if (script) {
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policy.unregisterContentScript(script);
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registeredContentScripts.delete(scriptId);
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}
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}
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}
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break;
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}
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}
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} catch (e) {
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Cu.reportError(e);
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}
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Services.cpmm.sendAsyncMessage(`${name}Complete`);
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},
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};
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var ExtensionProcessScript = {
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extensions,
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getFrameData(global, force) {
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let extGlobal = ExtensionManager.globals.get(global);
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return extGlobal && extGlobal.getFrameData(force);
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},
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initExtension(extension) {
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return ExtensionManager.initExtensionPolicy(extension);
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},
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initExtensionDocument(policy, doc, privileged) {
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let extension = extensions.get(policy);
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if (privileged) {
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ExtensionPageChild.initExtensionContext(extension, doc.defaultView);
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} else {
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ExtensionContent.initExtensionContext(extension, doc.defaultView);
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}
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},
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getExtensionChild(id) {
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let policy = WebExtensionPolicy.getByID(id);
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if (policy) {
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return extensions.get(policy);
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}
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},
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preloadContentScript(contentScript) {
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ExtensionContent.contentScripts.get(contentScript).preload();
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},
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loadContentScript(contentScript, window) {
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return ExtensionContent.contentScripts
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.get(contentScript)
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.injectInto(window);
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},
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};
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ExtensionManager.init();
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