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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /toolkit/components/extensions/Extension.jsm
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+this.EXPORTED_SYMBOLS = ["Extension", "ExtensionData"];
+
+/* globals Extension ExtensionData */
+
+/*
+ * This file is the main entry point for extensions. When an extension
+ * loads, its bootstrap.js file creates a Extension instance
+ * and calls .startup() on it. It calls .shutdown() when the extension
+ * unloads. Extension manages any extension-specific state in
+ * the chrome process.
+ */
+
+const Ci = Components.interfaces;
+const Cc = Components.classes;
+const Cu = Components.utils;
+const Cr = Components.results;
+
+Cu.importGlobalProperties(["TextEncoder"]);
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource://gre/modules/Services.jsm");
+
+XPCOMUtils.defineLazyModuleGetter(this, "AddonManager",
+ "resource://gre/modules/AddonManager.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "AppConstants",
+ "resource://gre/modules/AppConstants.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "ExtensionAPIs",
+ "resource://gre/modules/ExtensionAPI.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "ExtensionStorage",
+ "resource://gre/modules/ExtensionStorage.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "ExtensionTestCommon",
+ "resource://testing-common/ExtensionTestCommon.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "Locale",
+ "resource://gre/modules/Locale.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "Log",
+ "resource://gre/modules/Log.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "MatchGlobs",
+ "resource://gre/modules/MatchPattern.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "MatchPattern",
+ "resource://gre/modules/MatchPattern.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "MessageChannel",
+ "resource://gre/modules/MessageChannel.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "NetUtil",
+ "resource://gre/modules/NetUtil.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "OS",
+ "resource://gre/modules/osfile.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "PrivateBrowsingUtils",
+ "resource://gre/modules/PrivateBrowsingUtils.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "Preferences",
+ "resource://gre/modules/Preferences.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "require",
+ "resource://devtools/shared/Loader.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "Schemas",
+ "resource://gre/modules/Schemas.jsm");
+XPCOMUtils.defineLazyModuleGetter(this, "Task",
+ "resource://gre/modules/Task.jsm");
+
+Cu.import("resource://gre/modules/ExtensionContent.jsm");
+Cu.import("resource://gre/modules/ExtensionManagement.jsm");
+Cu.import("resource://gre/modules/ExtensionParent.jsm");
+Cu.import("resource://gre/modules/ExtensionUtils.jsm");
+
+XPCOMUtils.defineLazyServiceGetter(this, "uuidGen",
+ "@mozilla.org/uuid-generator;1",
+ "nsIUUIDGenerator");
+
+var {
+ GlobalManager,
+ ParentAPIManager,
+ apiManager: Management,
+} = ExtensionParent;
+
+const {
+ EventEmitter,
+ LocaleData,
+ getUniqueId,
+} = ExtensionUtils;
+
+XPCOMUtils.defineLazyGetter(this, "console", ExtensionUtils.getConsole);
+
+const LOGGER_ID_BASE = "addons.webextension.";
+const UUID_MAP_PREF = "extensions.webextensions.uuids";
+const LEAVE_STORAGE_PREF = "extensions.webextensions.keepStorageOnUninstall";
+const LEAVE_UUID_PREF = "extensions.webextensions.keepUuidOnUninstall";
+
+const COMMENT_REGEXP = new RegExp(String.raw`
+ ^
+ (
+ (?:
+ [^"\n] |
+ " (?:[^"\\\n] | \\.)* "
+ )*?
+ )
+
+ //.*
+ `.replace(/\s+/g, ""), "gm");
+
+// All moz-extension URIs use a machine-specific UUID rather than the
+// extension's own ID in the host component. This makes it more
+// difficult for web pages to detect whether a user has a given add-on
+// installed (by trying to load a moz-extension URI referring to a
+// web_accessible_resource from the extension). UUIDMap.get()
+// returns the UUID for a given add-on ID.
+var UUIDMap = {
+ _read() {
+ let pref = Preferences.get(UUID_MAP_PREF, "{}");
+ try {
+ return JSON.parse(pref);
+ } catch (e) {
+ Cu.reportError(`Error parsing ${UUID_MAP_PREF}.`);
+ return {};
+ }
+ },
+
+ _write(map) {
+ Preferences.set(UUID_MAP_PREF, JSON.stringify(map));
+ },
+
+ get(id, create = true) {
+ let map = this._read();
+
+ if (id in map) {
+ return map[id];
+ }
+
+ let uuid = null;
+ if (create) {
+ uuid = uuidGen.generateUUID().number;
+ uuid = uuid.slice(1, -1); // Strip { and } off the UUID.
+
+ map[id] = uuid;
+ this._write(map);
+ }
+ return uuid;
+ },
+
+ remove(id) {
+ let map = this._read();
+ delete map[id];
+ this._write(map);
+ },
+};
+
+// This is the old interface that UUIDMap replaced, to be removed when
+// the references listed in bug 1291399 are updated.
+/* exported getExtensionUUID */
+function getExtensionUUID(id) {
+ return UUIDMap.get(id, true);
+}
+
+// For extensions that have called setUninstallURL(), send an event
+// so the browser can display the URL.
+var UninstallObserver = {
+ initialized: false,
+
+ init() {
+ if (!this.initialized) {
+ AddonManager.addAddonListener(this);
+ XPCOMUtils.defineLazyPreferenceGetter(this, "leaveStorage", LEAVE_STORAGE_PREF, false);
+ XPCOMUtils.defineLazyPreferenceGetter(this, "leaveUuid", LEAVE_UUID_PREF, false);
+ this.initialized = true;
+ }
+ },
+
+ onUninstalling(addon) {
+ let extension = GlobalManager.extensionMap.get(addon.id);
+ if (extension) {
+ // Let any other interested listeners respond
+ // (e.g., display the uninstall URL)
+ Management.emit("uninstall", extension);
+ }
+ },
+
+ onUninstalled(addon) {
+ let uuid = UUIDMap.get(addon.id, false);
+ if (!uuid) {
+ return;
+ }
+
+ if (!this.leaveStorage) {
+ // Clear browser.local.storage
+ ExtensionStorage.clear(addon.id);
+
+ // Clear any IndexedDB storage created by the extension
+ let baseURI = NetUtil.newURI(`moz-extension://${uuid}/`);
+ let principal = Services.scriptSecurityManager.createCodebasePrincipal(
+ baseURI, {addonId: addon.id}
+ );
+ Services.qms.clearStoragesForPrincipal(principal);
+
+ // Clear localStorage created by the extension
+ let attrs = JSON.stringify({addonId: addon.id});
+ Services.obs.notifyObservers(null, "clear-origin-attributes-data", attrs);
+ }
+
+ if (!this.leaveUuid) {
+ // Clear the entry in the UUID map
+ UUIDMap.remove(addon.id);
+ }
+ },
+};
+
+UninstallObserver.init();
+
+// Represents the data contained in an extension, contained either
+// in a directory or a zip file, which may or may not be installed.
+// This class implements the functionality of the Extension class,
+// primarily related to manifest parsing and localization, which is
+// useful prior to extension installation or initialization.
+//
+// No functionality of this class is guaranteed to work before
+// |readManifest| has been called, and completed.
+this.ExtensionData = class {
+ constructor(rootURI) {
+ this.rootURI = rootURI;
+
+ this.manifest = null;
+ this.id = null;
+ this.uuid = null;
+ this.localeData = null;
+ this._promiseLocales = null;
+
+ this.apiNames = new Set();
+ this.dependencies = new Set();
+ this.permissions = new Set();
+
+ this.errors = [];
+ }
+
+ get builtinMessages() {
+ return null;
+ }
+
+ get logger() {
+ let id = this.id || "<unknown>";
+ return Log.repository.getLogger(LOGGER_ID_BASE + id);
+ }
+
+ // Report an error about the extension's manifest file.
+ manifestError(message) {
+ this.packagingError(`Reading manifest: ${message}`);
+ }
+
+ // Report an error about the extension's general packaging.
+ packagingError(message) {
+ this.errors.push(message);
+ this.logger.error(`Loading extension '${this.id}': ${message}`);
+ }
+
+ /**
+ * Returns the moz-extension: URL for the given path within this
+ * extension.
+ *
+ * Must not be called unless either the `id` or `uuid` property has
+ * already been set.
+ *
+ * @param {string} path The path portion of the URL.
+ * @returns {string}
+ */
+ getURL(path = "") {
+ if (!(this.id || this.uuid)) {
+ throw new Error("getURL may not be called before an `id` or `uuid` has been set");
+ }
+ if (!this.uuid) {
+ this.uuid = UUIDMap.get(this.id);
+ }
+ return `moz-extension://${this.uuid}/${path}`;
+ }
+
+ readDirectory(path) {
+ return Task.spawn(function* () {
+ if (this.rootURI instanceof Ci.nsIFileURL) {
+ let uri = NetUtil.newURI(this.rootURI.resolve("./" + path));
+ let fullPath = uri.QueryInterface(Ci.nsIFileURL).file.path;
+
+ let iter = new OS.File.DirectoryIterator(fullPath);
+ let results = [];
+
+ try {
+ yield iter.forEach(entry => {
+ results.push(entry);
+ });
+ } catch (e) {
+ // Always return a list, even if the directory does not exist (or is
+ // not a directory) for symmetry with the ZipReader behavior.
+ }
+ iter.close();
+
+ return results;
+ }
+
+ // FIXME: We need a way to do this without main thread IO.
+
+ let uri = this.rootURI.QueryInterface(Ci.nsIJARURI);
+
+ let file = uri.JARFile.QueryInterface(Ci.nsIFileURL).file;
+ let zipReader = Cc["@mozilla.org/libjar/zip-reader;1"].createInstance(Ci.nsIZipReader);
+ zipReader.open(file);
+ try {
+ let results = [];
+
+ // Normalize the directory path.
+ path = `${uri.JAREntry}/${path}`;
+ path = path.replace(/\/\/+/g, "/").replace(/^\/|\/$/g, "") + "/";
+
+ // Escape pattern metacharacters.
+ let pattern = path.replace(/[[\]()?*~|$\\]/g, "\\$&");
+
+ let enumerator = zipReader.findEntries(pattern + "*");
+ while (enumerator.hasMore()) {
+ let name = enumerator.getNext();
+ if (!name.startsWith(path)) {
+ throw new Error("Unexpected ZipReader entry");
+ }
+
+ // The enumerator returns the full path of all entries.
+ // Trim off the leading path, and filter out entries from
+ // subdirectories.
+ name = name.slice(path.length);
+ if (name && !/\/./.test(name)) {
+ results.push({
+ name: name.replace("/", ""),
+ isDir: name.endsWith("/"),
+ });
+ }
+ }
+
+ return results;
+ } finally {
+ zipReader.close();
+ }
+ }.bind(this));
+ }
+
+ readJSON(path) {
+ return new Promise((resolve, reject) => {
+ let uri = this.rootURI.resolve(`./${path}`);
+
+ NetUtil.asyncFetch({uri, loadUsingSystemPrincipal: true}, (inputStream, status) => {
+ if (!Components.isSuccessCode(status)) {
+ // Convert status code to a string
+ let e = Components.Exception("", status);
+ reject(new Error(`Error while loading '${uri}' (${e.name})`));
+ return;
+ }
+ try {
+ let text = NetUtil.readInputStreamToString(inputStream, inputStream.available(),
+ {charset: "utf-8"});
+
+ text = text.replace(COMMENT_REGEXP, "$1");
+
+ resolve(JSON.parse(text));
+ } catch (e) {
+ reject(e);
+ }
+ });
+ });
+ }
+
+ // Reads the extension's |manifest.json| file, and stores its
+ // parsed contents in |this.manifest|.
+ readManifest() {
+ return Promise.all([
+ this.readJSON("manifest.json"),
+ Management.lazyInit(),
+ ]).then(([manifest]) => {
+ this.manifest = manifest;
+ this.rawManifest = manifest;
+
+ if (manifest && manifest.default_locale) {
+ return this.initLocale();
+ }
+ }).then(() => {
+ let context = {
+ url: this.baseURI && this.baseURI.spec,
+
+ principal: this.principal,
+
+ logError: error => {
+ this.logger.warn(`Loading extension '${this.id}': Reading manifest: ${error}`);
+ },
+
+ preprocessors: {},
+ };
+
+ if (this.localeData) {
+ context.preprocessors.localize = (value, context) => this.localize(value);
+ }
+
+ let normalized = Schemas.normalize(this.manifest, "manifest.WebExtensionManifest", context);
+ if (normalized.error) {
+ this.manifestError(normalized.error);
+ } else {
+ this.manifest = normalized.value;
+ }
+
+ try {
+ // Do not override the add-on id that has been already assigned.
+ if (!this.id && this.manifest.applications.gecko.id) {
+ this.id = this.manifest.applications.gecko.id;
+ }
+ } catch (e) {
+ // Errors are handled by the type checks above.
+ }
+
+ let permissions = this.manifest.permissions || [];
+
+ let whitelist = [];
+ for (let perm of permissions) {
+ this.permissions.add(perm);
+
+ let match = /^(\w+)(?:\.(\w+)(?:\.\w+)*)?$/.exec(perm);
+ if (!match) {
+ whitelist.push(perm);
+ } else if (match[1] == "experiments" && match[2]) {
+ this.apiNames.add(match[2]);
+ }
+ }
+ this.whiteListedHosts = new MatchPattern(whitelist);
+
+ for (let api of this.apiNames) {
+ this.dependencies.add(`${api}@experiments.addons.mozilla.org`);
+ }
+
+ return this.manifest;
+ });
+ }
+
+ localizeMessage(...args) {
+ return this.localeData.localizeMessage(...args);
+ }
+
+ localize(...args) {
+ return this.localeData.localize(...args);
+ }
+
+ // If a "default_locale" is specified in that manifest, returns it
+ // as a Gecko-compatible locale string. Otherwise, returns null.
+ get defaultLocale() {
+ if (this.manifest.default_locale != null) {
+ return this.normalizeLocaleCode(this.manifest.default_locale);
+ }
+
+ return null;
+ }
+
+ // Normalizes a Chrome-compatible locale code to the appropriate
+ // Gecko-compatible variant. Currently, this means simply
+ // replacing underscores with hyphens.
+ normalizeLocaleCode(locale) {
+ return String.replace(locale, /_/g, "-");
+ }
+
+ // Reads the locale file for the given Gecko-compatible locale code, and
+ // stores its parsed contents in |this.localeMessages.get(locale)|.
+ readLocaleFile(locale) {
+ return Task.spawn(function* () {
+ let locales = yield this.promiseLocales();
+ let dir = locales.get(locale) || locale;
+ let file = `_locales/${dir}/messages.json`;
+
+ try {
+ let messages = yield this.readJSON(file);
+ return this.localeData.addLocale(locale, messages, this);
+ } catch (e) {
+ this.packagingError(`Loading locale file ${file}: ${e}`);
+ return new Map();
+ }
+ }.bind(this));
+ }
+
+ // Reads the list of locales available in the extension, and returns a
+ // Promise which resolves to a Map upon completion.
+ // Each map key is a Gecko-compatible locale code, and each value is the
+ // "_locales" subdirectory containing that locale:
+ //
+ // Map(gecko-locale-code -> locale-directory-name)
+ promiseLocales() {
+ if (!this._promiseLocales) {
+ this._promiseLocales = Task.spawn(function* () {
+ let locales = new Map();
+
+ let entries = yield this.readDirectory("_locales");
+ for (let file of entries) {
+ if (file.isDir) {
+ let locale = this.normalizeLocaleCode(file.name);
+ locales.set(locale, file.name);
+ }
+ }
+
+ this.localeData = new LocaleData({
+ defaultLocale: this.defaultLocale,
+ locales,
+ builtinMessages: this.builtinMessages,
+ });
+
+ return locales;
+ }.bind(this));
+ }
+
+ return this._promiseLocales;
+ }
+
+ // Reads the locale messages for all locales, and returns a promise which
+ // resolves to a Map of locale messages upon completion. Each key in the map
+ // is a Gecko-compatible locale code, and each value is a locale data object
+ // as returned by |readLocaleFile|.
+ initAllLocales() {
+ return Task.spawn(function* () {
+ let locales = yield this.promiseLocales();
+
+ yield Promise.all(Array.from(locales.keys(),
+ locale => this.readLocaleFile(locale)));
+
+ let defaultLocale = this.defaultLocale;
+ if (defaultLocale) {
+ if (!locales.has(defaultLocale)) {
+ this.manifestError('Value for "default_locale" property must correspond to ' +
+ 'a directory in "_locales/". Not found: ' +
+ JSON.stringify(`_locales/${this.manifest.default_locale}/`));
+ }
+ } else if (locales.size) {
+ this.manifestError('The "default_locale" property is required when a ' +
+ '"_locales/" directory is present.');
+ }
+
+ return this.localeData.messages;
+ }.bind(this));
+ }
+
+ // Reads the locale file for the given Gecko-compatible locale code, or the
+ // default locale if no locale code is given, and sets it as the currently
+ // selected locale on success.
+ //
+ // Pre-loads the default locale for fallback message processing, regardless
+ // of the locale specified.
+ //
+ // If no locales are unavailable, resolves to |null|.
+ initLocale(locale = this.defaultLocale) {
+ return Task.spawn(function* () {
+ if (locale == null) {
+ return null;
+ }
+
+ let promises = [this.readLocaleFile(locale)];
+
+ let {defaultLocale} = this;
+ if (locale != defaultLocale && !this.localeData.has(defaultLocale)) {
+ promises.push(this.readLocaleFile(defaultLocale));
+ }
+
+ let results = yield Promise.all(promises);
+
+ this.localeData.selectedLocale = locale;
+ return results[0];
+ }.bind(this));
+ }
+};
+
+let _browserUpdated = false;
+
+const PROXIED_EVENTS = new Set(["test-harness-message"]);
+
+// We create one instance of this class per extension. |addonData|
+// comes directly from bootstrap.js when initializing.
+this.Extension = class extends ExtensionData {
+ constructor(addonData, startupReason) {
+ super(addonData.resourceURI);
+
+ this.uuid = UUIDMap.get(addonData.id);
+ this.instanceId = getUniqueId();
+
+ this.MESSAGE_EMIT_EVENT = `Extension:EmitEvent:${this.instanceId}`;
+ Services.ppmm.addMessageListener(this.MESSAGE_EMIT_EVENT, this);
+
+ if (addonData.cleanupFile) {
+ Services.obs.addObserver(this, "xpcom-shutdown", false);
+ this.cleanupFile = addonData.cleanupFile || null;
+ delete addonData.cleanupFile;
+ }
+
+ this.addonData = addonData;
+ this.startupReason = startupReason;
+
+ this.id = addonData.id;
+ this.baseURI = NetUtil.newURI(this.getURL("")).QueryInterface(Ci.nsIURL);
+ this.principal = this.createPrincipal();
+
+ this.onStartup = null;
+
+ this.hasShutdown = false;
+ this.onShutdown = new Set();
+
+ this.uninstallURL = null;
+
+ this.apis = [];
+ this.whiteListedHosts = null;
+ this.webAccessibleResources = null;
+
+ this.emitter = new EventEmitter();
+ }
+
+ static set browserUpdated(updated) {
+ _browserUpdated = updated;
+ }
+
+ static get browserUpdated() {
+ return _browserUpdated;
+ }
+
+ static generateXPI(data) {
+ return ExtensionTestCommon.generateXPI(data);
+ }
+
+ static generateZipFile(files, baseName = "generated-extension.xpi") {
+ return ExtensionTestCommon.generateZipFile(files, baseName);
+ }
+
+ static generate(data) {
+ return ExtensionTestCommon.generate(data);
+ }
+
+ on(hook, f) {
+ return this.emitter.on(hook, f);
+ }
+
+ off(hook, f) {
+ return this.emitter.off(hook, f);
+ }
+
+ emit(event, ...args) {
+ if (PROXIED_EVENTS.has(event)) {
+ Services.ppmm.broadcastAsyncMessage(this.MESSAGE_EMIT_EVENT, {event, args});
+ }
+
+ return this.emitter.emit(event, ...args);
+ }
+
+ receiveMessage({name, data}) {
+ if (name === this.MESSAGE_EMIT_EVENT) {
+ this.emitter.emit(data.event, ...data.args);
+ }
+ }
+
+ testMessage(...args) {
+ this.emit("test-harness-message", ...args);
+ }
+
+ createPrincipal(uri = this.baseURI) {
+ return Services.scriptSecurityManager.createCodebasePrincipal(
+ uri, {addonId: this.id});
+ }
+
+ // Checks that the given URL is a child of our baseURI.
+ isExtensionURL(url) {
+ let uri = Services.io.newURI(url, null, null);
+
+ let common = this.baseURI.getCommonBaseSpec(uri);
+ return common == this.baseURI.spec;
+ }
+
+ readManifest() {
+ return super.readManifest().then(manifest => {
+ if (AppConstants.RELEASE_OR_BETA) {
+ return manifest;
+ }
+
+ // Load Experiments APIs that this extension depends on.
+ return Promise.all(
+ Array.from(this.apiNames, api => ExtensionAPIs.load(api))
+ ).then(apis => {
+ for (let API of apis) {
+ this.apis.push(new API(this));
+ }
+
+ return manifest;
+ });
+ });
+ }
+
+ // Representation of the extension to send to content
+ // processes. This should include anything the content process might
+ // need.
+ serialize() {
+ return {
+ id: this.id,
+ uuid: this.uuid,
+ instanceId: this.instanceId,
+ manifest: this.manifest,
+ resourceURL: this.addonData.resourceURI.spec,
+ baseURL: this.baseURI.spec,
+ content_scripts: this.manifest.content_scripts || [], // eslint-disable-line camelcase
+ webAccessibleResources: this.webAccessibleResources.serialize(),
+ whiteListedHosts: this.whiteListedHosts.serialize(),
+ localeData: this.localeData.serialize(),
+ permissions: this.permissions,
+ principal: this.principal,
+ };
+ }
+
+ broadcast(msg, data) {
+ return new Promise(resolve => {
+ let count = Services.ppmm.childCount;
+ Services.ppmm.addMessageListener(msg + "Complete", function listener() {
+ count--;
+ if (count == 0) {
+ Services.ppmm.removeMessageListener(msg + "Complete", listener);
+ resolve();
+ }
+ });
+ Services.ppmm.broadcastAsyncMessage(msg, data);
+ });
+ }
+
+ runManifest(manifest) {
+ // Strip leading slashes from web_accessible_resources.
+ let strippedWebAccessibleResources = [];
+ if (manifest.web_accessible_resources) {
+ strippedWebAccessibleResources = manifest.web_accessible_resources.map(path => path.replace(/^\/+/, ""));
+ }
+
+ this.webAccessibleResources = new MatchGlobs(strippedWebAccessibleResources);
+
+ let promises = [];
+ for (let directive in manifest) {
+ if (manifest[directive] !== null) {
+ promises.push(Management.emit(`manifest_${directive}`, directive, this, manifest));
+ }
+ }
+
+ let data = Services.ppmm.initialProcessData;
+ if (!data["Extension:Extensions"]) {
+ data["Extension:Extensions"] = [];
+ }
+ let serial = this.serialize();
+ data["Extension:Extensions"].push(serial);
+
+ return this.broadcast("Extension:Startup", serial).then(() => {
+ return Promise.all(promises);
+ });
+ }
+
+ callOnClose(obj) {
+ this.onShutdown.add(obj);
+ }
+
+ forgetOnClose(obj) {
+ this.onShutdown.delete(obj);
+ }
+
+ get builtinMessages() {
+ return new Map([
+ ["@@extension_id", this.uuid],
+ ]);
+ }
+
+ // Reads the locale file for the given Gecko-compatible locale code, or if
+ // no locale is given, the available locale closest to the UI locale.
+ // Sets the currently selected locale on success.
+ initLocale(locale = undefined) {
+ // Ugh.
+ let super_ = super.initLocale.bind(this);
+
+ return Task.spawn(function* () {
+ if (locale === undefined) {
+ let locales = yield this.promiseLocales();
+
+ let localeList = Array.from(locales.keys(), locale => {
+ return {name: locale, locales: [locale]};
+ });
+
+ let match = Locale.findClosestLocale(localeList);
+ locale = match ? match.name : this.defaultLocale;
+ }
+
+ return super_(locale);
+ }.bind(this));
+ }
+
+ startup() {
+ let started = false;
+ return this.readManifest().then(() => {
+ ExtensionManagement.startupExtension(this.uuid, this.addonData.resourceURI, this);
+ started = true;
+
+ if (!this.hasShutdown) {
+ return this.initLocale();
+ }
+ }).then(() => {
+ if (this.errors.length) {
+ return Promise.reject({errors: this.errors});
+ }
+
+ if (this.hasShutdown) {
+ return;
+ }
+
+ GlobalManager.init(this);
+
+ // The "startup" Management event sent on the extension instance itself
+ // is emitted just before the Management "startup" event,
+ // and it is used to run code that needs to be executed before
+ // any of the "startup" listeners.
+ this.emit("startup", this);
+ Management.emit("startup", this);
+
+ return this.runManifest(this.manifest);
+ }).then(() => {
+ Management.emit("ready", this);
+ }).catch(e => {
+ dump(`Extension error: ${e.message} ${e.filename || e.fileName}:${e.lineNumber} :: ${e.stack || new Error().stack}\n`);
+ Cu.reportError(e);
+
+ if (started) {
+ ExtensionManagement.shutdownExtension(this.uuid);
+ }
+
+ this.cleanupGeneratedFile();
+
+ throw e;
+ });
+ }
+
+ cleanupGeneratedFile() {
+ if (!this.cleanupFile) {
+ return;
+ }
+
+ let file = this.cleanupFile;
+ this.cleanupFile = null;
+
+ Services.obs.removeObserver(this, "xpcom-shutdown");
+
+ this.broadcast("Extension:FlushJarCache", {path: file.path}).then(() => {
+ // We can't delete this file until everyone using it has
+ // closed it (because Windows is dumb). So we wait for all the
+ // child processes (including the parent) to flush their JAR
+ // caches. These caches may keep the file open.
+ file.remove(false);
+ });
+ }
+
+ shutdown() {
+ this.hasShutdown = true;
+
+ Services.ppmm.removeMessageListener(this.MESSAGE_EMIT_EVENT, this);
+
+ if (!this.manifest) {
+ ExtensionManagement.shutdownExtension(this.uuid);
+
+ this.cleanupGeneratedFile();
+ return;
+ }
+
+ GlobalManager.uninit(this);
+
+ for (let obj of this.onShutdown) {
+ obj.close();
+ }
+
+ for (let api of this.apis) {
+ api.destroy();
+ }
+
+ ParentAPIManager.shutdownExtension(this.id);
+
+ Management.emit("shutdown", this);
+
+ Services.ppmm.broadcastAsyncMessage("Extension:Shutdown", {id: this.id});
+
+ MessageChannel.abortResponses({extensionId: this.id});
+
+ ExtensionManagement.shutdownExtension(this.uuid);
+
+ this.cleanupGeneratedFile();
+ }
+
+ observe(subject, topic, data) {
+ if (topic == "xpcom-shutdown") {
+ this.cleanupGeneratedFile();
+ }
+ }
+
+ hasPermission(perm) {
+ let match = /^manifest:(.*)/.exec(perm);
+ if (match) {
+ return this.manifest[match[1]] != null;
+ }
+
+ return this.permissions.has(perm);
+ }
+
+ get name() {
+ return this.manifest.name;
+ }
+};