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diff --git a/testing/specialpowers/content/SpecialPowersChild.jsm b/testing/specialpowers/content/SpecialPowersChild.jsm
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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/. */
+/* This code is loaded in every child process that is started by mochitest.
+ */
+
+"use strict";
+
+var EXPORTED_SYMBOLS = ["SpecialPowersChild"];
+
+var { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
+
+const { ExtensionUtils } = ChromeUtils.import(
+ "resource://gre/modules/ExtensionUtils.jsm"
+);
+
+ChromeUtils.defineModuleGetter(
+ this,
+ "MockFilePicker",
+ "resource://specialpowers/MockFilePicker.jsm"
+);
+ChromeUtils.defineModuleGetter(
+ this,
+ "MockColorPicker",
+ "resource://specialpowers/MockColorPicker.jsm"
+);
+ChromeUtils.defineModuleGetter(
+ this,
+ "MockPermissionPrompt",
+ "resource://specialpowers/MockPermissionPrompt.jsm"
+);
+ChromeUtils.defineModuleGetter(
+ this,
+ "SpecialPowersSandbox",
+ "resource://specialpowers/SpecialPowersSandbox.jsm"
+);
+ChromeUtils.defineModuleGetter(
+ this,
+ "WrapPrivileged",
+ "resource://specialpowers/WrapPrivileged.jsm"
+);
+ChromeUtils.defineModuleGetter(
+ this,
+ "PrivateBrowsingUtils",
+ "resource://gre/modules/PrivateBrowsingUtils.jsm"
+);
+ChromeUtils.defineModuleGetter(
+ this,
+ "NetUtil",
+ "resource://gre/modules/NetUtil.jsm"
+);
+ChromeUtils.defineModuleGetter(
+ this,
+ "AppConstants",
+ "resource://gre/modules/AppConstants.jsm"
+);
+ChromeUtils.defineModuleGetter(
+ this,
+ "PerTestCoverageUtils",
+ "resource://testing-common/PerTestCoverageUtils.jsm"
+);
+ChromeUtils.defineModuleGetter(
+ this,
+ "ContentTaskUtils",
+ "resource://testing-common/ContentTaskUtils.jsm"
+);
+
+Cu.crashIfNotInAutomation();
+
+function bindDOMWindowUtils(aWindow) {
+ return aWindow && WrapPrivileged.wrap(aWindow.windowUtils, aWindow);
+}
+
+function defineSpecialPowers(sp) {
+ let window = sp.contentWindow;
+ window.SpecialPowers = sp;
+ if (window === window.wrappedJSObject) {
+ return;
+ }
+ // We can't use a generic |defineLazyGetter| because it does not
+ // allow customizing the re-definition behavior.
+ Object.defineProperty(window.wrappedJSObject, "SpecialPowers", {
+ get() {
+ let value = WrapPrivileged.wrap(sp, window);
+ // If we bind |window.wrappedJSObject| when defining the getter
+ // and use it here, it might become a dead wrapper.
+ // We have to retrieve |wrappedJSObject| again.
+ Object.defineProperty(window.wrappedJSObject, "SpecialPowers", {
+ configurable: true,
+ enumerable: true,
+ value,
+ writable: true,
+ });
+ return value;
+ },
+ configurable: true,
+ enumerable: true,
+ });
+}
+
+// SPConsoleListener reflects nsIConsoleMessage objects into JS in a
+// tidy, XPCOM-hiding way. Messages that are nsIScriptError objects
+// have their properties exposed in detail. It also auto-unregisters
+// itself when it receives a "sentinel" message.
+function SPConsoleListener(callback, contentWindow) {
+ this.callback = callback;
+ this.contentWindow = contentWindow;
+}
+
+SPConsoleListener.prototype = {
+ // Overload the observe method for both nsIConsoleListener and nsIObserver.
+ // The topic will be null for nsIConsoleListener.
+ observe(msg, topic) {
+ let m = {
+ message: msg.message,
+ errorMessage: null,
+ cssSelectors: null,
+ sourceName: null,
+ sourceLine: null,
+ lineNumber: null,
+ columnNumber: null,
+ category: null,
+ windowID: null,
+ isScriptError: false,
+ isConsoleEvent: false,
+ isWarning: false,
+ };
+ if (msg instanceof Ci.nsIScriptError) {
+ m.errorMessage = msg.errorMessage;
+ m.cssSelectors = msg.cssSelectors;
+ m.sourceName = msg.sourceName;
+ m.sourceLine = msg.sourceLine;
+ m.lineNumber = msg.lineNumber;
+ m.columnNumber = msg.columnNumber;
+ m.category = msg.category;
+ m.windowID = msg.outerWindowID;
+ m.innerWindowID = msg.innerWindowID;
+ m.isScriptError = true;
+ m.isWarning = (msg.flags & Ci.nsIScriptError.warningFlag) === 1;
+ } else if (topic === "console-api-log-event") {
+ // This is a dom/console event.
+ let unwrapped = msg.wrappedJSObject;
+ m.errorMessage = unwrapped.arguments[0];
+ m.sourceName = unwrapped.filename;
+ m.lineNumber = unwrapped.lineNumber;
+ m.columnNumber = unwrapped.columnNumber;
+ m.windowID = unwrapped.ID;
+ m.innerWindowID = unwrapped.innerID;
+ m.isConsoleEvent = true;
+ m.isWarning = unwrapped.level === "warning";
+ }
+
+ Object.freeze(m);
+
+ // Run in a separate runnable since console listeners aren't
+ // supposed to touch content and this one might.
+ Services.tm.dispatchToMainThread(() => {
+ this.callback.call(undefined, Cu.cloneInto(m, this.contentWindow));
+ });
+
+ if (!m.isScriptError && !m.isConsoleEvent && m.message === "SENTINEL") {
+ Services.obs.removeObserver(this, "console-api-log-event");
+ Services.console.unregisterListener(this);
+ }
+ },
+
+ QueryInterface: ChromeUtils.generateQI(["nsIConsoleListener", "nsIObserver"]),
+};
+
+class SpecialPowersChild extends JSWindowActorChild {
+ constructor() {
+ super();
+
+ this._windowID = null;
+
+ this._encounteredCrashDumpFiles = [];
+ this._unexpectedCrashDumpFiles = {};
+ this._crashDumpDir = null;
+ this._serviceWorkerRegistered = false;
+ this._serviceWorkerCleanUpRequests = new Map();
+ Object.defineProperty(this, "Components", {
+ configurable: true,
+ enumerable: true,
+ value: Components,
+ });
+ this._createFilesOnError = null;
+ this._createFilesOnSuccess = null;
+
+ this._messageListeners = new ExtensionUtils.DefaultMap(() => new Set());
+
+ this._consoleListeners = [];
+ this._spawnTaskImports = {};
+ this._encounteredCrashDumpFiles = [];
+ this._unexpectedCrashDumpFiles = {};
+ this._crashDumpDir = null;
+ this._mfl = null;
+ this._asyncObservers = new WeakMap();
+ this._xpcomabi = null;
+ this._os = null;
+ this._pu = null;
+
+ this._nextExtensionID = 0;
+ this._extensionListeners = null;
+
+ WrapPrivileged.disableAutoWrap(
+ this.unwrap,
+ this.isWrapper,
+ this.wrapCallback,
+ this.wrapCallbackObject,
+ this.setWrapped,
+ this.nondeterministicGetWeakMapKeys,
+ this.snapshotWindowWithOptions,
+ this.snapshotWindow,
+ this.snapshotRect,
+ this.getDOMRequestService
+ );
+ }
+
+ observe(aSubject, aTopic, aData) {
+ // Ignore the "{chrome/content}-document-global-created" event. It
+ // is only observed to force creation of the actor.
+ }
+
+ actorCreated() {
+ this.attachToWindow();
+ }
+
+ attachToWindow() {
+ let window = this.contentWindow;
+ // We should not invoke the getter.
+ if (!("SpecialPowers" in window.wrappedJSObject)) {
+ this._windowID = window.windowGlobalChild.innerWindowId;
+
+ defineSpecialPowers(this);
+ }
+ }
+
+ get window() {
+ return this.contentWindow;
+ }
+
+ // Hack around devtools sometimes trying to JSON stringify us.
+ toJSON() {
+ return {};
+ }
+
+ toString() {
+ return "[SpecialPowers]";
+ }
+ sanityCheck() {
+ return "foo";
+ }
+
+ _addMessageListener(msgname, listener) {
+ this._messageListeners.get(msgname).add(listener);
+ }
+
+ _removeMessageListener(msgname, listener) {
+ this._messageListeners.get(msgname).delete(listener);
+ }
+
+ receiveMessage(message) {
+ if (this._messageListeners.has(message.name)) {
+ for (let listener of this._messageListeners.get(message.name)) {
+ try {
+ if (typeof listener === "function") {
+ listener(message);
+ } else {
+ listener.receiveMessage(message);
+ }
+ } catch (e) {
+ Cu.reportError(e);
+ }
+ }
+ }
+
+ switch (message.name) {
+ case "SPProcessCrashService":
+ if (message.json.type == "crash-observed") {
+ for (let e of message.json.dumpIDs) {
+ this._encounteredCrashDumpFiles.push(e.id + "." + e.extension);
+ }
+ }
+ break;
+
+ case "SPServiceWorkerRegistered":
+ this._serviceWorkerRegistered = message.data.registered;
+ break;
+
+ case "SpecialPowers.FilesCreated":
+ var createdHandler = this._createFilesOnSuccess;
+ this._createFilesOnSuccess = null;
+ this._createFilesOnError = null;
+ if (createdHandler) {
+ createdHandler(Cu.cloneInto(message.data, this.contentWindow));
+ }
+ break;
+
+ case "SpecialPowers.FilesError":
+ var errorHandler = this._createFilesOnError;
+ this._createFilesOnSuccess = null;
+ this._createFilesOnError = null;
+ if (errorHandler) {
+ errorHandler(message.data);
+ }
+ break;
+
+ case "Spawn":
+ let { task, args, caller, taskId, imports } = message.data;
+ return this._spawnTask(task, args, caller, taskId, imports);
+
+ case "Assert":
+ {
+ if ("info" in message.data) {
+ this.SimpleTest.info(message.data.info);
+ break;
+ }
+
+ // An assertion has been done in a mochitest chrome script
+ let { name, passed, stack, diag, expectFail } = message.data;
+
+ let { SimpleTest } = this;
+ if (SimpleTest) {
+ let expected = expectFail ? "fail" : "pass";
+ SimpleTest.record(passed, name, diag, stack, expected);
+ } else {
+ // Well, this is unexpected.
+ dump(name + "\n");
+ }
+ }
+ break;
+ }
+ return undefined;
+ }
+
+ registerProcessCrashObservers() {
+ this.sendAsyncMessage("SPProcessCrashService", { op: "register-observer" });
+ }
+
+ unregisterProcessCrashObservers() {
+ this.sendAsyncMessage("SPProcessCrashService", {
+ op: "unregister-observer",
+ });
+ }
+
+ /*
+ * Privileged object wrapping API
+ *
+ * Usage:
+ * var wrapper = SpecialPowers.wrap(obj);
+ * wrapper.privilegedMethod(); wrapper.privilegedProperty;
+ * obj === SpecialPowers.unwrap(wrapper);
+ *
+ * These functions provide transparent access to privileged objects using
+ * various pieces of deep SpiderMagic. Conceptually, a wrapper is just an
+ * object containing a reference to the underlying object, where all method
+ * calls and property accesses are transparently performed with the System
+ * Principal. Moreover, objects obtained from the wrapper (including properties
+ * and method return values) are wrapped automatically. Thus, after a single
+ * call to SpecialPowers.wrap(), the wrapper layer is transitively maintained.
+ *
+ * Known Issues:
+ *
+ * - The wrapping function does not preserve identity, so
+ * SpecialPowers.wrap(foo) !== SpecialPowers.wrap(foo). See bug 718543.
+ *
+ * - The wrapper cannot see expando properties on unprivileged DOM objects.
+ * That is to say, the wrapper uses Xray delegation.
+ *
+ * - The wrapper sometimes guesses certain ES5 attributes for returned
+ * properties. This is explained in a comment in the wrapper code above,
+ * and shouldn't be a problem.
+ */
+ wrap(obj) {
+ return obj;
+ }
+ unwrap(obj) {
+ return WrapPrivileged.unwrap(obj);
+ }
+ isWrapper(val) {
+ return WrapPrivileged.isWrapper(val);
+ }
+
+ /*
+ * Wrap objects on a specified global.
+ */
+ wrapFor(obj, win) {
+ return WrapPrivileged.wrap(obj, win);
+ }
+
+ /*
+ * When content needs to pass a callback or a callback object to an API
+ * accessed over SpecialPowers, that API may sometimes receive arguments for
+ * whom it is forbidden to create a wrapper in content scopes. As such, we
+ * need a layer to wrap the values in SpecialPowers wrappers before they ever
+ * reach content.
+ */
+ wrapCallback(func) {
+ return WrapPrivileged.wrapCallback(func, this.contentWindow);
+ }
+ wrapCallbackObject(obj) {
+ return WrapPrivileged.wrapCallbackObject(obj, this.contentWindow);
+ }
+
+ /*
+ * Used for assigning a property to a SpecialPowers wrapper, without unwrapping
+ * the value that is assigned.
+ */
+ setWrapped(obj, prop, val) {
+ if (!WrapPrivileged.isWrapper(obj)) {
+ throw new Error(
+ "You only need to use this for SpecialPowers wrapped objects"
+ );
+ }
+
+ obj = WrapPrivileged.unwrap(obj);
+ return Reflect.set(obj, prop, val);
+ }
+
+ /*
+ * Create blank privileged objects to use as out-params for privileged functions.
+ */
+ createBlankObject() {
+ return {};
+ }
+
+ /*
+ * Because SpecialPowers wrappers don't preserve identity, comparing with ==
+ * can be hazardous. Sometimes we can just unwrap to compare, but sometimes
+ * wrapping the underlying object into a content scope is forbidden. This
+ * function strips any wrappers if they exist and compare the underlying
+ * values.
+ */
+ compare(a, b) {
+ return WrapPrivileged.unwrap(a) === WrapPrivileged.unwrap(b);
+ }
+
+ get MockFilePicker() {
+ return MockFilePicker;
+ }
+
+ get MockColorPicker() {
+ return MockColorPicker;
+ }
+
+ get MockPermissionPrompt() {
+ return MockPermissionPrompt;
+ }
+
+ quit() {
+ this.sendAsyncMessage("SpecialPowers.Quit", {});
+ }
+
+ // fileRequests is an array of file requests. Each file request is an object.
+ // A request must have a field |name|, which gives the base of the name of the
+ // file to be created in the profile directory. If the request has a |data| field
+ // then that data will be written to the file.
+ createFiles(fileRequests, onCreation, onError) {
+ return this.sendQuery("SpecialPowers.CreateFiles", fileRequests).then(
+ files => onCreation(Cu.cloneInto(files, this.contentWindow)),
+ onError
+ );
+ }
+
+ // Remove the files that were created using |SpecialPowers.createFiles()|.
+ // This will be automatically called by |SimpleTest.finish()|.
+ removeFiles() {
+ this.sendAsyncMessage("SpecialPowers.RemoveFiles", {});
+ }
+
+ executeAfterFlushingMessageQueue(aCallback) {
+ return this.sendQuery("Ping").then(aCallback);
+ }
+
+ async registeredServiceWorkers() {
+ // For the time being, if parent_intercept is false, we can assume that
+ // ServiceWorkers registered by the current test are all known to the SWM in
+ // this process.
+ if (
+ !Services.prefs.getBoolPref("dom.serviceWorkers.parent_intercept", false)
+ ) {
+ let swm = Cc["@mozilla.org/serviceworkers/manager;1"].getService(
+ Ci.nsIServiceWorkerManager
+ );
+ let regs = swm.getAllRegistrations();
+
+ // XXX This is shared with SpecialPowersAPIParent.jsm
+ let workers = new Array(regs.length);
+ for (let i = 0; i < workers.length; ++i) {
+ let { scope, scriptSpec } = regs.queryElementAt(
+ i,
+ Ci.nsIServiceWorkerRegistrationInfo
+ );
+ workers[i] = { scope, scriptSpec };
+ }
+
+ return workers;
+ }
+
+ // Please see the comment in SpecialPowersObserver.jsm above
+ // this._serviceWorkerListener's assignment for what this returns.
+ if (this._serviceWorkerRegistered) {
+ // This test registered at least one service worker. Send a synchronous
+ // call to the parent to make sure that it called unregister on all of its
+ // service workers.
+ let { workers } = await this.sendQuery("SPCheckServiceWorkers");
+ return workers;
+ }
+
+ return [];
+ }
+
+ /*
+ * Load a privileged script that runs same-process. This is different from
+ * |loadChromeScript|, which will run in the parent process in e10s mode.
+ */
+ loadPrivilegedScript(aFunction) {
+ var str = "(" + aFunction.toString() + ")();";
+ let gGlobalObject = Cu.getGlobalForObject(this);
+ let sb = Cu.Sandbox(gGlobalObject);
+ var window = this.contentWindow;
+ var mc = new window.MessageChannel();
+ sb.port = mc.port1;
+ let blob = new Blob([str], { type: "application/javascript" });
+ let blobUrl = URL.createObjectURL(blob);
+ Services.scriptloader.loadSubScript(blobUrl, sb);
+
+ return mc.port2;
+ }
+
+ _readUrlAsString(aUrl) {
+ // Fetch script content as we can't use scriptloader's loadSubScript
+ // to evaluate http:// urls...
+ var scriptableStream = Cc[
+ "@mozilla.org/scriptableinputstream;1"
+ ].getService(Ci.nsIScriptableInputStream);
+
+ var channel = NetUtil.newChannel({
+ uri: aUrl,
+ loadUsingSystemPrincipal: true,
+ });
+ var input = channel.open();
+ scriptableStream.init(input);
+
+ var str;
+ var buffer = [];
+
+ while ((str = scriptableStream.read(4096))) {
+ buffer.push(str);
+ }
+
+ var output = buffer.join("");
+
+ scriptableStream.close();
+ input.close();
+
+ var status;
+ if (channel instanceof Ci.nsIHttpChannel) {
+ status = channel.responseStatus;
+ }
+
+ if (status == 404) {
+ throw new Error(
+ `Error while executing chrome script '${aUrl}':\n` +
+ "The script doesn't exist. Ensure you have registered it in " +
+ "'support-files' in your mochitest.ini."
+ );
+ }
+
+ return output;
+ }
+
+ loadChromeScript(urlOrFunction, sandboxOptions) {
+ // Create a unique id for this chrome script
+ let uuidGenerator = Cc["@mozilla.org/uuid-generator;1"].getService(
+ Ci.nsIUUIDGenerator
+ );
+ let id = uuidGenerator.generateUUID().toString();
+
+ // Tells chrome code to evaluate this chrome script
+ let scriptArgs = { id, sandboxOptions };
+ if (typeof urlOrFunction == "function") {
+ scriptArgs.function = {
+ body: "(" + urlOrFunction.toString() + ")();",
+ name: urlOrFunction.name,
+ };
+ } else {
+ // Note: We need to do this in the child since, even though
+ // `_readUrlAsString` pretends to be synchronous, its channel
+ // winds up spinning the event loop when loading HTTP URLs. That
+ // leads to unexpected out-of-order operations if the child sends
+ // a message immediately after loading the script.
+ scriptArgs.function = {
+ body: this._readUrlAsString(urlOrFunction),
+ };
+ scriptArgs.url = urlOrFunction;
+ }
+ this.sendAsyncMessage("SPLoadChromeScript", scriptArgs);
+
+ // Returns a MessageManager like API in order to be
+ // able to communicate with this chrome script
+ let listeners = [];
+ let chromeScript = {
+ addMessageListener: (name, listener) => {
+ listeners.push({ name, listener });
+ },
+
+ promiseOneMessage: name =>
+ new Promise(resolve => {
+ chromeScript.addMessageListener(name, function listener(message) {
+ chromeScript.removeMessageListener(name, listener);
+ resolve(message);
+ });
+ }),
+
+ removeMessageListener: (name, listener) => {
+ listeners = listeners.filter(
+ o => o.name != name || o.listener != listener
+ );
+ },
+
+ sendAsyncMessage: (name, message) => {
+ this.sendAsyncMessage("SPChromeScriptMessage", { id, name, message });
+ },
+
+ sendQuery: (name, message) => {
+ return this.sendQuery("SPChromeScriptMessage", { id, name, message });
+ },
+
+ destroy: () => {
+ listeners = [];
+ this._removeMessageListener("SPChromeScriptMessage", chromeScript);
+ },
+
+ receiveMessage: aMessage => {
+ let messageId = aMessage.json.id;
+ let name = aMessage.json.name;
+ let message = aMessage.json.message;
+ if (this.contentWindow) {
+ message = new StructuredCloneHolder(message).deserialize(
+ this.contentWindow
+ );
+ }
+ // Ignore message from other chrome script
+ if (messageId != id) {
+ return null;
+ }
+
+ let result;
+ if (aMessage.name == "SPChromeScriptMessage") {
+ for (let listener of listeners.filter(o => o.name == name)) {
+ result = listener.listener(message);
+ }
+ }
+ return result;
+ },
+ };
+ this._addMessageListener("SPChromeScriptMessage", chromeScript);
+
+ return chromeScript;
+ }
+
+ async importInMainProcess(importString) {
+ var message = await this.sendQuery("SPImportInMainProcess", importString);
+ if (message.hadError) {
+ throw new Error(
+ "SpecialPowers.importInMainProcess failed with error " +
+ message.errorMessage
+ );
+ }
+ }
+
+ get Services() {
+ return Services;
+ }
+
+ /*
+ * Convenient shortcuts to the standard Components abbreviations.
+ */
+ get Cc() {
+ return Cc;
+ }
+ get Ci() {
+ return Ci;
+ }
+ get Cu() {
+ return Cu;
+ }
+ get Cr() {
+ return Cr;
+ }
+
+ get addProfilerMarker() {
+ return ChromeUtils.addProfilerMarker;
+ }
+
+ get DOMWindowUtils() {
+ return this.contentWindow.windowUtils;
+ }
+
+ getDOMWindowUtils(aWindow) {
+ if (aWindow == this.contentWindow) {
+ return aWindow.windowUtils;
+ }
+
+ return bindDOMWindowUtils(Cu.unwaiveXrays(aWindow));
+ }
+
+ async toggleMuteState(aMuted, aWindow) {
+ let actor = aWindow
+ ? aWindow.windowGlobalChild.getActor("SpecialPowers")
+ : this;
+ return actor.sendQuery("SPToggleMuteAudio", { mute: aMuted });
+ }
+
+ /*
+ * A method to get a DOMParser that can't parse XUL.
+ */
+ getNoXULDOMParser() {
+ // If we create it with a system subject principal (so it gets a
+ // nullprincipal), it won't be able to parse XUL by default.
+ return new DOMParser();
+ }
+
+ get InspectorUtils() {
+ return InspectorUtils;
+ }
+
+ get PromiseDebugging() {
+ return PromiseDebugging;
+ }
+
+ async waitForCrashes(aExpectingProcessCrash) {
+ if (!aExpectingProcessCrash) {
+ return;
+ }
+
+ var crashIds = this._encounteredCrashDumpFiles
+ .filter(filename => {
+ return filename.length === 40 && filename.endsWith(".dmp");
+ })
+ .map(id => {
+ return id.slice(0, -4); // Strip the .dmp extension to get the ID
+ });
+
+ await this.sendQuery("SPProcessCrashManagerWait", {
+ crashIds,
+ });
+ }
+
+ async removeExpectedCrashDumpFiles(aExpectingProcessCrash) {
+ var success = true;
+ if (aExpectingProcessCrash) {
+ var message = {
+ op: "delete-crash-dump-files",
+ filenames: this._encounteredCrashDumpFiles,
+ };
+ if (!(await this.sendQuery("SPProcessCrashService", message))) {
+ success = false;
+ }
+ }
+ this._encounteredCrashDumpFiles.length = 0;
+ return success;
+ }
+
+ async findUnexpectedCrashDumpFiles() {
+ var self = this;
+ var message = {
+ op: "find-crash-dump-files",
+ crashDumpFilesToIgnore: this._unexpectedCrashDumpFiles,
+ };
+ var crashDumpFiles = await this.sendQuery("SPProcessCrashService", message);
+ crashDumpFiles.forEach(function(aFilename) {
+ self._unexpectedCrashDumpFiles[aFilename] = true;
+ });
+ return crashDumpFiles;
+ }
+
+ removePendingCrashDumpFiles() {
+ var message = {
+ op: "delete-pending-crash-dump-files",
+ };
+ return this.sendQuery("SPProcessCrashService", message);
+ }
+
+ _setTimeout(callback, delay = 0) {
+ // for mochitest-browser
+ if (typeof this.chromeWindow != "undefined") {
+ this.chromeWindow.setTimeout(callback, delay);
+ }
+ // for mochitest-plain
+ else {
+ this.contentWindow.setTimeout(callback, delay);
+ }
+ }
+
+ promiseTimeout(delay) {
+ return new Promise(resolve => {
+ this._setTimeout(resolve, delay);
+ });
+ }
+
+ _delayCallbackTwice(callback) {
+ let delayedCallback = () => {
+ let delayAgain = aCallback => {
+ // Using this._setTimeout doesn't work here
+ // It causes failures in mochtests that use
+ // multiple pushPrefEnv calls
+ // For chrome/browser-chrome mochitests
+ this._setTimeout(aCallback);
+ };
+ delayAgain(delayAgain.bind(this, callback));
+ };
+ return delayedCallback;
+ }
+
+ /* apply permissions to the system and when the test case is finished (SimpleTest.finish())
+ we will revert the permission back to the original.
+
+ inPermissions is an array of objects where each object has a type, action, context, ex:
+ [{'type': 'SystemXHR', 'allow': 1, 'context': document},
+ {'type': 'SystemXHR', 'allow': Ci.nsIPermissionManager.PROMPT_ACTION, 'context': document}]
+
+ Allow can be a boolean value of true/false or ALLOW_ACTION/DENY_ACTION/PROMPT_ACTION/UNKNOWN_ACTION
+ */
+ async pushPermissions(inPermissions, callback) {
+ let permissions = [];
+ for (let perm of inPermissions) {
+ let principal = this._getPrincipalFromArg(perm.context);
+ permissions.push({
+ ...perm,
+ context: null,
+ principal,
+ });
+ }
+
+ await this.sendQuery("PushPermissions", permissions).then(callback);
+ await this.promiseTimeout(0);
+ }
+
+ async popPermissions(callback = null) {
+ await this.sendQuery("PopPermissions").then(callback);
+ await this.promiseTimeout(0);
+ }
+
+ async flushPermissions(callback = null) {
+ await this.sendQuery("FlushPermissions").then(callback);
+ await this.promiseTimeout(0);
+ }
+
+ /*
+ * This function should be used when specialpowers is in content process but
+ * it want to get the notification from chrome space.
+ *
+ * This function will call Services.obs.addObserver in SpecialPowersObserver
+ * (that is in chrome process) and forward the data received to SpecialPowers
+ * via messageManager.
+ * You can use this._addMessageListener("specialpowers-YOUR_TOPIC") to fire
+ * the callback.
+ *
+ * To get the expected data, you should modify
+ * SpecialPowersObserver.prototype._registerObservers.observe. Or the message
+ * you received from messageManager will only contain 'aData' from Service.obs.
+ */
+ registerObservers(topic) {
+ var msg = {
+ op: "add",
+ observerTopic: topic,
+ };
+ return this.sendQuery("SPObserverService", msg);
+ }
+
+ setTestPluginEnabledState(newEnabledState, pluginName) {
+ return this.sendQuery("SPSetTestPluginEnabledState", {
+ newEnabledState,
+ pluginName,
+ });
+ }
+
+ async pushPrefEnv(inPrefs, callback = null) {
+ await this.sendQuery("PushPrefEnv", inPrefs).then(callback);
+ await this.promiseTimeout(0);
+ }
+
+ async popPrefEnv(callback = null) {
+ await this.sendQuery("PopPrefEnv").then(callback);
+ await this.promiseTimeout(0);
+ }
+
+ async flushPrefEnv(callback = null) {
+ await this.sendQuery("FlushPrefEnv").then(callback);
+ await this.promiseTimeout(0);
+ }
+
+ _addObserverProxy(notification) {
+ if (notification in this._proxiedObservers) {
+ this._addMessageListener(
+ notification,
+ this._proxiedObservers[notification]
+ );
+ }
+ }
+ _removeObserverProxy(notification) {
+ if (notification in this._proxiedObservers) {
+ this._removeMessageListener(
+ notification,
+ this._proxiedObservers[notification]
+ );
+ }
+ }
+
+ addObserver(obs, notification, weak) {
+ // Make sure the parent side exists, or we won't get any notifications.
+ this.sendAsyncMessage("Wakeup");
+
+ this._addObserverProxy(notification);
+ obs = Cu.waiveXrays(obs);
+ if (
+ typeof obs == "object" &&
+ obs.observe.name != "SpecialPowersCallbackWrapper"
+ ) {
+ obs.observe = WrapPrivileged.wrapCallback(
+ Cu.unwaiveXrays(obs.observe),
+ this.contentWindow
+ );
+ }
+ Services.obs.addObserver(obs, notification, weak);
+ }
+ removeObserver(obs, notification) {
+ this._removeObserverProxy(notification);
+ Services.obs.removeObserver(Cu.waiveXrays(obs), notification);
+ }
+ notifyObservers(subject, topic, data) {
+ Services.obs.notifyObservers(subject, topic, data);
+ }
+
+ /**
+ * An async observer is useful if you're listening for a
+ * notification that normally is only used by C++ code or chrome
+ * code (so it runs in the SystemGroup), but we need to know about
+ * it for a test (which runs as web content). If we used
+ * addObserver, we would assert when trying to enter web content
+ * from a runnabled labeled by the SystemGroup. An async observer
+ * avoids this problem.
+ */
+ addAsyncObserver(obs, notification, weak) {
+ obs = Cu.waiveXrays(obs);
+ if (
+ typeof obs == "object" &&
+ obs.observe.name != "SpecialPowersCallbackWrapper"
+ ) {
+ obs.observe = WrapPrivileged.wrapCallback(
+ Cu.unwaiveXrays(obs.observe),
+ this.contentWindow
+ );
+ }
+ let asyncObs = (...args) => {
+ Services.tm.dispatchToMainThread(() => {
+ if (typeof obs == "function") {
+ obs(...args);
+ } else {
+ obs.observe.call(undefined, ...args);
+ }
+ });
+ };
+ this._asyncObservers.set(obs, asyncObs);
+ Services.obs.addObserver(asyncObs, notification, weak);
+ }
+ removeAsyncObserver(obs, notification) {
+ let asyncObs = this._asyncObservers.get(Cu.waiveXrays(obs));
+ Services.obs.removeObserver(asyncObs, notification);
+ }
+
+ can_QI(obj) {
+ return obj.QueryInterface !== undefined;
+ }
+ do_QueryInterface(obj, iface) {
+ return obj.QueryInterface(Ci[iface]);
+ }
+
+ call_Instanceof(obj1, obj2) {
+ obj1 = WrapPrivileged.unwrap(obj1);
+ obj2 = WrapPrivileged.unwrap(obj2);
+ return obj1 instanceof obj2;
+ }
+
+ // Returns a privileged getter from an object. GetOwnPropertyDescriptor does
+ // not work here because xray wrappers don't properly implement it.
+ //
+ // This terribleness is used by dom/base/test/test_object.html because
+ // <object> and <embed> tags will spawn plugins if their prototype is touched,
+ // so we need to get and cache the getter of |hasRunningPlugin| if we want to
+ // call it without paradoxically spawning the plugin.
+ do_lookupGetter(obj, name) {
+ return Object.prototype.__lookupGetter__.call(obj, name);
+ }
+
+ // Mimic the get*Pref API
+ getBoolPref(...args) {
+ return Services.prefs.getBoolPref(...args);
+ }
+ getIntPref(...args) {
+ return Services.prefs.getIntPref(...args);
+ }
+ getCharPref(...args) {
+ return Services.prefs.getCharPref(...args);
+ }
+ getComplexValue(prefName, iid) {
+ return Services.prefs.getComplexValue(prefName, iid);
+ }
+
+ getParentBoolPref(prefName, defaultValue) {
+ return this._getParentPref(prefName, "BOOL", { defaultValue });
+ }
+ getParentIntPref(prefName, defaultValue) {
+ return this._getParentPref(prefName, "INT", { defaultValue });
+ }
+ getParentCharPref(prefName, defaultValue) {
+ return this._getParentPref(prefName, "CHAR", { defaultValue });
+ }
+
+ // Mimic the set*Pref API
+ setBoolPref(prefName, value) {
+ return this._setPref(prefName, "BOOL", value);
+ }
+ setIntPref(prefName, value) {
+ return this._setPref(prefName, "INT", value);
+ }
+ setCharPref(prefName, value) {
+ return this._setPref(prefName, "CHAR", value);
+ }
+ setComplexValue(prefName, iid, value) {
+ return this._setPref(prefName, "COMPLEX", value, iid);
+ }
+
+ // Mimic the clearUserPref API
+ clearUserPref(prefName) {
+ let msg = {
+ op: "clear",
+ prefName,
+ prefType: "",
+ };
+ return this.sendQuery("SPPrefService", msg);
+ }
+
+ // Private pref functions to communicate to chrome
+ async _getParentPref(prefName, prefType, { defaultValue, iid }) {
+ let msg = {
+ op: "get",
+ prefName,
+ prefType,
+ iid, // Only used with complex prefs
+ defaultValue, // Optional default value
+ };
+ let val = await this.sendQuery("SPPrefService", msg);
+ if (val == null) {
+ throw new Error(`Error getting pref '${prefName}'`);
+ }
+ return val;
+ }
+ _getPref(prefName, prefType, { defaultValue }) {
+ switch (prefType) {
+ case "BOOL":
+ return Services.prefs.getBoolPref(prefName);
+ case "INT":
+ return Services.prefs.getIntPref(prefName);
+ case "CHAR":
+ return Services.prefs.getCharPref(prefName);
+ }
+ return undefined;
+ }
+ _setPref(prefName, prefType, prefValue, iid) {
+ let msg = {
+ op: "set",
+ prefName,
+ prefType,
+ iid, // Only used with complex prefs
+ prefValue,
+ };
+ return this.sendQuery("SPPrefService", msg);
+ }
+
+ _getMUDV(window) {
+ return window.docShell.contentViewer;
+ }
+ // XXX: these APIs really ought to be removed, they're not e10s-safe.
+ // (also they're pretty Firefox-specific)
+ _getTopChromeWindow(window) {
+ return window.browsingContext.topChromeWindow;
+ }
+ _getAutoCompletePopup(window) {
+ return this._getTopChromeWindow(window).document.getElementById(
+ "PopupAutoComplete"
+ );
+ }
+ addAutoCompletePopupEventListener(window, eventname, listener) {
+ this._getAutoCompletePopup(window).addEventListener(eventname, listener);
+ }
+ removeAutoCompletePopupEventListener(window, eventname, listener) {
+ this._getAutoCompletePopup(window).removeEventListener(eventname, listener);
+ }
+ get formHistory() {
+ let tmp = {};
+ ChromeUtils.import("resource://gre/modules/FormHistory.jsm", tmp);
+ return tmp.FormHistory;
+ }
+ getFormFillController(window) {
+ return Cc["@mozilla.org/satchel/form-fill-controller;1"].getService(
+ Ci.nsIFormFillController
+ );
+ }
+ attachFormFillControllerTo(window) {
+ this.getFormFillController().attachPopupElementToDocument(
+ window.document,
+ this._getAutoCompletePopup(window)
+ );
+ }
+ detachFormFillControllerFrom(window) {
+ this.getFormFillController().detachFromDocument(window.document);
+ }
+ isBackButtonEnabled(window) {
+ return !this._getTopChromeWindow(window)
+ .document.getElementById("Browser:Back")
+ .hasAttribute("disabled");
+ }
+ // XXX end of problematic APIs
+
+ addChromeEventListener(type, listener, capture, allowUntrusted) {
+ this.docShell.chromeEventHandler.addEventListener(
+ type,
+ listener,
+ capture,
+ allowUntrusted
+ );
+ }
+ removeChromeEventListener(type, listener, capture) {
+ this.docShell.chromeEventHandler.removeEventListener(
+ type,
+ listener,
+ capture
+ );
+ }
+
+ async generateMediaControlKeyTestEvent(event) {
+ await this.sendQuery("SPGenerateMediaControlKeyTestEvent", { event });
+ }
+
+ // Note: each call to registerConsoleListener MUST be paired with a
+ // call to postConsoleSentinel; when the callback receives the
+ // sentinel it will unregister itself (_after_ calling the
+ // callback). SimpleTest.expectConsoleMessages does this for you.
+ // If you register more than one console listener, a call to
+ // postConsoleSentinel will zap all of them.
+ registerConsoleListener(callback) {
+ let listener = new SPConsoleListener(callback, this.contentWindow);
+ Services.console.registerListener(listener);
+
+ // listen for dom/console events as well
+ Services.obs.addObserver(listener, "console-api-log-event");
+ }
+ postConsoleSentinel() {
+ Services.console.logStringMessage("SENTINEL");
+ }
+ resetConsole() {
+ Services.console.reset();
+ }
+
+ getFullZoom(window) {
+ return BrowsingContext.getFromWindow(window).fullZoom;
+ }
+
+ getDeviceFullZoom(window) {
+ return this._getMUDV(window).deviceFullZoomForTest;
+ }
+ setFullZoom(window, zoom) {
+ BrowsingContext.getFromWindow(window).fullZoom = zoom;
+ }
+ getTextZoom(window) {
+ return BrowsingContext.getFromWindow(window).textZoom;
+ }
+ setTextZoom(window, zoom) {
+ BrowsingContext.getFromWindow(window).textZoom = zoom;
+ }
+
+ getOverrideDPPX(window) {
+ return this._getMUDV(window).overrideDPPX;
+ }
+ setOverrideDPPX(window, dppx) {
+ this._getMUDV(window).overrideDPPX = dppx;
+ }
+
+ emulateMedium(window, mediaType) {
+ this._getMUDV(window).emulateMedium(mediaType);
+ }
+ stopEmulatingMedium(window) {
+ this._getMUDV(window).stopEmulatingMedium();
+ }
+
+ // Takes a snapshot of the given window and returns a <canvas>
+ // containing the image. When the window is same-process, the canvas
+ // is returned synchronously. When it is out-of-process (or when a
+ // BrowsingContext or FrameLoaderOwner is passed instead of a Window),
+ // a promise which resolves to such a canvas is returned instead.
+ snapshotWindowWithOptions(content, rect, bgcolor, options) {
+ function getImageData(rect, bgcolor, options) {
+ let el = content.document.createElementNS(
+ "http://www.w3.org/1999/xhtml",
+ "canvas"
+ );
+ if (rect === undefined) {
+ rect = {
+ top: content.scrollY,
+ left: content.scrollX,
+ width: content.innerWidth,
+ height: content.innerHeight,
+ };
+ }
+ if (bgcolor === undefined) {
+ bgcolor = "rgb(255,255,255)";
+ }
+ if (options === undefined) {
+ options = {};
+ }
+
+ el.width = rect.width;
+ el.height = rect.height;
+ let ctx = el.getContext("2d");
+
+ let flags = 0;
+ for (let option in options) {
+ flags |= options[option] && ctx[option];
+ }
+
+ ctx.drawWindow(
+ content,
+ rect.left,
+ rect.top,
+ rect.width,
+ rect.height,
+ bgcolor,
+ flags
+ );
+
+ return ctx.getImageData(0, 0, el.width, el.height);
+ }
+
+ let toCanvas = imageData => {
+ let el = this.document.createElementNS(
+ "http://www.w3.org/1999/xhtml",
+ "canvas"
+ );
+ el.width = imageData.width;
+ el.height = imageData.height;
+
+ if (ImageData.isInstance(imageData)) {
+ let ctx = el.getContext("2d");
+ ctx.putImageData(imageData, 0, 0);
+ }
+
+ return el;
+ };
+
+ if (Window.isInstance(content)) {
+ // Hack around tests that try to snapshot 0 width or height
+ // elements.
+ if (rect && !(rect.width && rect.height)) {
+ return toCanvas(rect);
+ }
+
+ // This is an in-process window. Snapshot it synchronously.
+ return toCanvas(getImageData(rect, bgcolor, options));
+ }
+
+ // This is a remote window or frame. Snapshot it asynchronously and
+ // return a promise for the result. Alas, consumers expect us to
+ // return a <canvas> element rather than an ImageData object, so we
+ // need to convert the result from the remote snapshot to a local
+ // canvas.
+ let promise = this.spawn(
+ content,
+ [rect, bgcolor, options],
+ getImageData
+ ).then(toCanvas);
+ if (Cu.isXrayWrapper(this.contentWindow)) {
+ return new this.contentWindow.Promise((resolve, reject) => {
+ promise.then(resolve, reject);
+ });
+ }
+ return promise;
+ }
+
+ snapshotWindow(win, withCaret, rect, bgcolor) {
+ return this.snapshotWindowWithOptions(win, rect, bgcolor, {
+ DRAWWINDOW_DRAW_CARET: withCaret,
+ });
+ }
+
+ snapshotRect(win, rect, bgcolor) {
+ return this.snapshotWindowWithOptions(win, rect, bgcolor);
+ }
+
+ gc() {
+ this.contentWindow.windowUtils.garbageCollect();
+ }
+
+ forceGC() {
+ Cu.forceGC();
+ }
+
+ forceShrinkingGC() {
+ Cu.forceShrinkingGC();
+ }
+
+ forceCC() {
+ Cu.forceCC();
+ }
+
+ finishCC() {
+ Cu.finishCC();
+ }
+
+ ccSlice(budget) {
+ Cu.ccSlice(budget);
+ }
+
+ // Due to various dependencies between JS objects and C++ objects, an ordinary
+ // forceGC doesn't necessarily clear all unused objects, thus the GC and CC
+ // needs to run several times and when no other JS is running.
+ // The current number of iterations has been determined according to massive
+ // cross platform testing.
+ exactGC(callback) {
+ let count = 0;
+
+ function genGCCallback(cb) {
+ return function() {
+ Cu.forceCC();
+ if (++count < 3) {
+ Cu.schedulePreciseGC(genGCCallback(cb));
+ } else if (cb) {
+ cb();
+ }
+ };
+ }
+
+ Cu.schedulePreciseGC(genGCCallback(callback));
+ }
+
+ nondeterministicGetWeakMapKeys(m) {
+ let keys = ChromeUtils.nondeterministicGetWeakMapKeys(m);
+ if (!keys) {
+ return undefined;
+ }
+ return this.contentWindow.Array.from(keys);
+ }
+
+ getMemoryReports() {
+ try {
+ Cc["@mozilla.org/memory-reporter-manager;1"]
+ .getService(Ci.nsIMemoryReporterManager)
+ .getReports(
+ () => {},
+ null,
+ () => {},
+ null,
+ false
+ );
+ } catch (e) {}
+ }
+
+ setGCZeal(zeal) {
+ Cu.setGCZeal(zeal);
+ }
+
+ isMainProcess() {
+ try {
+ return (
+ Services.appinfo.processType == Ci.nsIXULRuntime.PROCESS_TYPE_DEFAULT
+ );
+ } catch (e) {}
+ return true;
+ }
+
+ get XPCOMABI() {
+ if (this._xpcomabi != null) {
+ return this._xpcomabi;
+ }
+
+ var xulRuntime = Services.appinfo.QueryInterface(Ci.nsIXULRuntime);
+
+ this._xpcomabi = xulRuntime.XPCOMABI;
+ return this._xpcomabi;
+ }
+
+ // The optional aWin parameter allows the caller to specify a given window in
+ // whose scope the runnable should be dispatched. If aFun throws, the
+ // exception will be reported to aWin.
+ executeSoon(aFun, aWin) {
+ // Create the runnable in the scope of aWin to avoid running into COWs.
+ var runnable = {};
+ if (aWin) {
+ runnable = Cu.createObjectIn(aWin);
+ }
+ runnable.run = aFun;
+ Cu.dispatch(runnable, aWin);
+ }
+
+ get OS() {
+ if (this._os != null) {
+ return this._os;
+ }
+
+ this._os = Services.appinfo.OS;
+ return this._os;
+ }
+
+ get useRemoteSubframes() {
+ return this.docShell.nsILoadContext.useRemoteSubframes;
+ }
+
+ addSystemEventListener(target, type, listener, useCapture) {
+ Services.els.addSystemEventListener(target, type, listener, useCapture);
+ }
+ removeSystemEventListener(target, type, listener, useCapture) {
+ Services.els.removeSystemEventListener(target, type, listener, useCapture);
+ }
+
+ // helper method to check if the event is consumed by either default group's
+ // event listener or system group's event listener.
+ defaultPreventedInAnyGroup(event) {
+ // FYI: Event.defaultPrevented returns false in content context if the
+ // event is consumed only by system group's event listeners.
+ return event.defaultPrevented;
+ }
+
+ getDOMRequestService() {
+ var serv = Services.DOMRequest;
+ var res = {};
+ var props = [
+ "createRequest",
+ "createCursor",
+ "fireError",
+ "fireSuccess",
+ "fireDone",
+ "fireDetailedError",
+ ];
+ for (var i in props) {
+ let prop = props[i];
+ res[prop] = function() {
+ return serv[prop].apply(serv, arguments);
+ };
+ }
+ return Cu.cloneInto(res, this.contentWindow, { cloneFunctions: true });
+ }
+
+ addCategoryEntry(category, entry, value, persists, replace) {
+ Services.catMan.addCategoryEntry(category, entry, value, persists, replace);
+ }
+
+ deleteCategoryEntry(category, entry, persists) {
+ Services.catMan.deleteCategoryEntry(category, entry, persists);
+ }
+ openDialog(win, args) {
+ return win.openDialog.apply(win, args);
+ }
+ // This is a blocking call which creates and spins a native event loop
+ spinEventLoop(win) {
+ // simply do a sync XHR back to our windows location.
+ var syncXHR = new win.XMLHttpRequest();
+ syncXHR.open("GET", win.location, false);
+ syncXHR.send();
+ }
+
+ // :jdm gets credit for this. ex: getPrivilegedProps(window, 'location.href');
+ getPrivilegedProps(obj, props) {
+ var parts = props.split(".");
+ for (var i = 0; i < parts.length; i++) {
+ var p = parts[i];
+ if (obj[p] != undefined) {
+ obj = obj[p];
+ } else {
+ return null;
+ }
+ }
+ return obj;
+ }
+
+ _browsingContextForTarget(target) {
+ if (BrowsingContext.isInstance(target)) {
+ return target;
+ }
+ if (Element.isInstance(target)) {
+ return target.browsingContext;
+ }
+
+ return BrowsingContext.getFromWindow(target);
+ }
+
+ getBrowsingContextID(target) {
+ return this._browsingContextForTarget(target).id;
+ }
+
+ *getGroupTopLevelWindows(target) {
+ let { group } = this._browsingContextForTarget(target);
+ for (let bc of group.getToplevels()) {
+ yield bc.window;
+ }
+ }
+
+ /**
+ * Runs a task in the context of the given frame, and returns a
+ * promise which resolves to the return value of that task.
+ *
+ * The given frame may be in-process or out-of-process. Either way,
+ * the task will run asynchronously, in a sandbox with access to the
+ * frame's content window via its `content` global. Any arguments
+ * passed will be copied via structured clone, as will its return
+ * value.
+ *
+ * The sandbox also has access to an Assert object, as provided by
+ * Assert.jsm. Any assertion methods called before the task resolves
+ * will be relayed back to the test environment of the caller.
+ *
+ * @param {BrowsingContext or FrameLoaderOwner or WindowProxy} target
+ * The target in which to run the task. This may be any element
+ * which implements the FrameLoaderOwner interface (including
+ * HTML <iframe> elements and XUL <browser> elements) or a
+ * WindowProxy (either in-process or remote).
+ * @param {Array<any>} args
+ * An array of arguments to pass to the task. All arguments
+ * must be structured clone compatible, and will be cloned
+ * before being passed to the task.
+ * @param {function} task
+ * The function to run in the context of the target. The
+ * function will be stringified and re-evaluated in the context
+ * of the target's content window. It may return any structured
+ * clone compatible value, or a Promise which resolves to the
+ * same, which will be returned to the caller.
+ *
+ * @returns {Promise<any>}
+ * A promise which resolves to the return value of the task, or
+ * which rejects if the task raises an exception. As this is
+ * being written, the rejection value will always be undefined
+ * in the cases where the task throws an error, though that may
+ * change in the future.
+ */
+ spawn(target, args, task) {
+ let browsingContext = this._browsingContextForTarget(target);
+
+ return this.sendQuery("Spawn", {
+ browsingContext,
+ args,
+ task: String(task),
+ caller: Cu.getFunctionSourceLocation(task),
+ hasHarness: typeof this.SimpleTest === "object",
+ imports: this._spawnTaskImports,
+ });
+ }
+
+ /**
+ * Like `spawn`, but spawns a chrome task in the parent process,
+ * instead. The task additionally has access to `windowGlobalParent`
+ * and `browsingContext` globals corresponding to the window from
+ * which the task was spawned.
+ */
+ spawnChrome(args, task) {
+ return this.sendQuery("SpawnChrome", {
+ args,
+ task: String(task),
+ caller: Cu.getFunctionSourceLocation(task),
+ imports: this._spawnTaskImports,
+ });
+ }
+
+ snapshotContext(target, rect, background) {
+ let browsingContext = this._browsingContextForTarget(target);
+
+ return this.sendQuery("Snapshot", {
+ browsingContext,
+ rect,
+ background,
+ }).then(imageData => {
+ return this.contentWindow.createImageBitmap(imageData);
+ });
+ }
+
+ getSecurityState(target) {
+ let browsingContext = this._browsingContextForTarget(target);
+
+ return this.sendQuery("SecurityState", {
+ browsingContext,
+ });
+ }
+
+ _spawnTask(task, args, caller, taskId, imports) {
+ let sb = new SpecialPowersSandbox(
+ null,
+ data => {
+ this.sendAsyncMessage("ProxiedAssert", { taskId, data });
+ },
+ { imports }
+ );
+
+ sb.sandbox.SpecialPowers = this;
+ sb.sandbox.ContentTaskUtils = ContentTaskUtils;
+ for (let [global, prop] of Object.entries({
+ content: "contentWindow",
+ docShell: "docShell",
+ })) {
+ Object.defineProperty(sb.sandbox, global, {
+ get: () => {
+ return this[prop];
+ },
+ enumerable: true,
+ });
+ }
+
+ return sb.execute(task, args, caller);
+ }
+
+ /**
+ * Automatically imports the given symbol from the given JSM for any
+ * task spawned by this SpecialPowers instance.
+ */
+ addTaskImport(symbol, url) {
+ this._spawnTaskImports[symbol] = url;
+ }
+
+ get SimpleTest() {
+ return this._SimpleTest || this.contentWindow.wrappedJSObject.SimpleTest;
+ }
+ set SimpleTest(val) {
+ this._SimpleTest = val;
+ }
+
+ /**
+ * Sets this actor as the default assertion result handler for tasks
+ * which originate in a window without a test harness.
+ */
+ setAsDefaultAssertHandler() {
+ this.sendAsyncMessage("SetAsDefaultAssertHandler");
+ }
+
+ getFocusedElementForWindow(targetWindow, aDeep) {
+ var outParam = {};
+ Services.focus.getFocusedElementForWindow(targetWindow, aDeep, outParam);
+ return outParam.value;
+ }
+
+ get focusManager() {
+ return Services.focus;
+ }
+
+ activeWindow() {
+ return Services.focus.activeWindow;
+ }
+
+ focusedWindow() {
+ return Services.focus.focusedWindow;
+ }
+
+ focus(aWindow) {
+ // This is called inside TestRunner._makeIframe without aWindow, because of assertions in oop mochitests
+ // With aWindow, it is called in SimpleTest.waitForFocus to allow popup window opener focus switching
+ if (aWindow) {
+ aWindow.focus();
+ }
+
+ try {
+ let actor = aWindow
+ ? aWindow.windowGlobalChild.getActor("SpecialPowers")
+ : this;
+ actor.sendAsyncMessage("SpecialPowers.Focus", {});
+ } catch (e) {
+ Cu.reportError(e);
+ }
+ }
+
+ getClipboardData(flavor, whichClipboard) {
+ if (whichClipboard === undefined) {
+ whichClipboard = Services.clipboard.kGlobalClipboard;
+ }
+
+ var xferable = Cc["@mozilla.org/widget/transferable;1"].createInstance(
+ Ci.nsITransferable
+ );
+ xferable.init(this.docShell);
+ xferable.addDataFlavor(flavor);
+ Services.clipboard.getData(xferable, whichClipboard);
+ var data = {};
+ try {
+ xferable.getTransferData(flavor, data);
+ } catch (e) {}
+ data = data.value || null;
+ if (data == null) {
+ return "";
+ }
+
+ return data.QueryInterface(Ci.nsISupportsString).data;
+ }
+
+ clipboardCopyString(str) {
+ Cc["@mozilla.org/widget/clipboardhelper;1"]
+ .getService(Ci.nsIClipboardHelper)
+ .copyString(str);
+ }
+
+ supportsSelectionClipboard() {
+ return Services.clipboard.supportsSelectionClipboard();
+ }
+
+ swapFactoryRegistration(cid, contractID, newFactory) {
+ newFactory = Cu.waiveXrays(newFactory);
+
+ var componentRegistrar = Components.manager.QueryInterface(
+ Ci.nsIComponentRegistrar
+ );
+
+ var currentCID = componentRegistrar.contractIDToCID(contractID);
+ var currentFactory = Components.manager.getClassObject(
+ Cc[contractID],
+ Ci.nsIFactory
+ );
+ if (cid) {
+ componentRegistrar.unregisterFactory(currentCID, currentFactory);
+ } else {
+ let uuidGenerator = Cc["@mozilla.org/uuid-generator;1"].getService(
+ Ci.nsIUUIDGenerator
+ );
+ cid = uuidGenerator.generateUUID();
+ }
+
+ // Restore the original factory.
+ componentRegistrar.registerFactory(cid, "", contractID, newFactory);
+ return { originalCID: currentCID };
+ }
+
+ _getElement(aWindow, id) {
+ return typeof id == "string" ? aWindow.document.getElementById(id) : id;
+ }
+
+ dispatchEvent(aWindow, target, event) {
+ var el = this._getElement(aWindow, target);
+ return el.dispatchEvent(event);
+ }
+
+ get isDebugBuild() {
+ return Cc["@mozilla.org/xpcom/debug;1"].getService(Ci.nsIDebug2)
+ .isDebugBuild;
+ }
+ assertionCount() {
+ var debugsvc = Cc["@mozilla.org/xpcom/debug;1"].getService(Ci.nsIDebug2);
+ return debugsvc.assertionCount;
+ }
+
+ /**
+ * @param arg one of the following:
+ * - A URI string.
+ * - A document node.
+ * - A dictionary including a URL (`url`) and origin attributes (`attr`).
+ */
+ _getPrincipalFromArg(arg) {
+ arg = WrapPrivileged.unwrap(Cu.unwaiveXrays(arg));
+
+ if (arg.nodePrincipal) {
+ // It's a document.
+ return arg.nodePrincipal;
+ }
+
+ let secMan = Services.scriptSecurityManager;
+ if (typeof arg == "string") {
+ // It's a URL.
+ let uri = Services.io.newURI(arg);
+ return secMan.createContentPrincipal(uri, {});
+ }
+
+ let uri = Services.io.newURI(arg.url);
+ let attrs = arg.originAttributes || {};
+ return secMan.createContentPrincipal(uri, attrs);
+ }
+
+ async addPermission(type, allow, arg, expireType, expireTime) {
+ let principal = this._getPrincipalFromArg(arg);
+ if (principal.isSystemPrincipal) {
+ return; // nothing to do
+ }
+
+ let permission = allow;
+ if (typeof permission === "boolean") {
+ permission =
+ Ci.nsIPermissionManager[allow ? "ALLOW_ACTION" : "DENY_ACTION"];
+ }
+
+ var msg = {
+ op: "add",
+ type,
+ permission,
+ principal,
+ expireType: typeof expireType === "number" ? expireType : 0,
+ expireTime: typeof expireTime === "number" ? expireTime : 0,
+ };
+
+ await this.sendQuery("SPPermissionManager", msg);
+ }
+
+ /**
+ * @param type see nsIPermissionsManager::testPermissionFromPrincipal.
+ * @param arg one of the following:
+ * - A URI string.
+ * - A document node.
+ * - A dictionary including a URL (`url`) and origin attributes (`attr`).
+ */
+ async removePermission(type, arg) {
+ let principal = this._getPrincipalFromArg(arg);
+ if (principal.isSystemPrincipal) {
+ return; // nothing to do
+ }
+
+ var msg = {
+ op: "remove",
+ type,
+ principal,
+ };
+
+ await this.sendQuery("SPPermissionManager", msg);
+ }
+
+ async hasPermission(type, arg) {
+ let principal = this._getPrincipalFromArg(arg);
+ if (principal.isSystemPrincipal) {
+ return true; // system principals have all permissions
+ }
+
+ var msg = {
+ op: "has",
+ type,
+ principal,
+ };
+
+ return this.sendQuery("SPPermissionManager", msg);
+ }
+
+ async testPermission(type, value, arg) {
+ let principal = this._getPrincipalFromArg(arg);
+ if (principal.isSystemPrincipal) {
+ return true; // system principals have all permissions
+ }
+
+ var msg = {
+ op: "test",
+ type,
+ value,
+ principal,
+ };
+ return this.sendQuery("SPPermissionManager", msg);
+ }
+
+ isContentWindowPrivate(win) {
+ return PrivateBrowsingUtils.isContentWindowPrivate(win);
+ }
+
+ async notifyObserversInParentProcess(subject, topic, data) {
+ if (subject) {
+ throw new Error("Can't send subject to another process!");
+ }
+ if (this.isMainProcess()) {
+ this.notifyObservers(subject, topic, data);
+ return;
+ }
+ var msg = {
+ op: "notify",
+ observerTopic: topic,
+ observerData: data,
+ };
+ await this.sendQuery("SPObserverService", msg);
+ }
+
+ removeAllServiceWorkerData() {
+ return this.sendQuery("SPRemoveAllServiceWorkers", {});
+ }
+
+ removeServiceWorkerDataForExampleDomain() {
+ return this.sendQuery("SPRemoveServiceWorkerDataForExampleDomain", {});
+ }
+
+ cleanUpSTSData(origin, flags) {
+ return this.sendQuery("SPCleanUpSTSData", { origin, flags: flags || 0 });
+ }
+
+ async requestDumpCoverageCounters(cb) {
+ // We want to avoid a roundtrip between child and parent.
+ if (!PerTestCoverageUtils.enabled) {
+ return;
+ }
+
+ await this.sendQuery("SPRequestDumpCoverageCounters", {});
+ }
+
+ async requestResetCoverageCounters(cb) {
+ // We want to avoid a roundtrip between child and parent.
+ if (!PerTestCoverageUtils.enabled) {
+ return;
+ }
+ await this.sendQuery("SPRequestResetCoverageCounters", {});
+ }
+
+ loadExtension(ext, handler) {
+ if (this._extensionListeners == null) {
+ this._extensionListeners = new Set();
+
+ this._addMessageListener("SPExtensionMessage", msg => {
+ for (let listener of this._extensionListeners) {
+ try {
+ listener(msg);
+ } catch (e) {
+ Cu.reportError(e);
+ }
+ }
+ });
+ }
+
+ // Note, this is not the addon is as used by the AddonManager etc,
+ // this is just an identifier used for specialpowers messaging
+ // between this content process and the chrome process.
+ let id = this._nextExtensionID++;
+
+ handler = Cu.waiveXrays(handler);
+ ext = Cu.waiveXrays(ext);
+
+ let sp = this;
+ let state = "uninitialized";
+ let extension = {
+ get state() {
+ return state;
+ },
+
+ startup() {
+ state = "pending";
+ return sp.sendQuery("SPStartupExtension", { id }).then(
+ () => {
+ state = "running";
+ },
+ () => {
+ state = "failed";
+ sp._extensionListeners.delete(listener);
+ return Promise.reject("startup failed");
+ }
+ );
+ },
+
+ unload() {
+ state = "unloading";
+ return sp.sendQuery("SPUnloadExtension", { id }).finally(() => {
+ sp._extensionListeners.delete(listener);
+ state = "unloaded";
+ });
+ },
+
+ sendMessage(...args) {
+ sp.sendAsyncMessage("SPExtensionMessage", { id, args });
+ },
+
+ grantActiveTab(tabId) {
+ sp.sendAsyncMessage("SPExtensionGrantActiveTab", { id, tabId });
+ },
+ };
+
+ this.sendAsyncMessage("SPLoadExtension", { ext, id });
+
+ let listener = msg => {
+ if (msg.data.id == id) {
+ if (msg.data.type == "extensionSetId") {
+ extension.id = msg.data.args[0];
+ extension.uuid = msg.data.args[1];
+ } else if (msg.data.type in handler) {
+ handler[msg.data.type](
+ ...Cu.cloneInto(msg.data.args, this.contentWindow)
+ );
+ } else {
+ dump(`Unexpected: ${msg.data.type}\n`);
+ }
+ }
+ };
+
+ this._extensionListeners.add(listener);
+ return extension;
+ }
+
+ invalidateExtensionStorageCache() {
+ this.notifyObserversInParentProcess(
+ null,
+ "extension-invalidate-storage-cache",
+ ""
+ );
+ }
+
+ allowMedia(window, enable) {
+ window.docShell.allowMedia = enable;
+ }
+
+ createChromeCache(name, url) {
+ let principal = this._getPrincipalFromArg(url);
+ return new this.contentWindow.CacheStorage(name, principal);
+ }
+
+ loadChannelAndReturnStatus(url, loadUsingSystemPrincipal) {
+ const BinaryInputStream = Components.Constructor(
+ "@mozilla.org/binaryinputstream;1",
+ "nsIBinaryInputStream",
+ "setInputStream"
+ );
+
+ return new Promise(function(resolve) {
+ let listener = {
+ httpStatus: 0,
+
+ onStartRequest(request) {
+ request.QueryInterface(Ci.nsIHttpChannel);
+ this.httpStatus = request.responseStatus;
+ },
+
+ onDataAvailable(request, stream, offset, count) {
+ new BinaryInputStream(stream).readByteArray(count);
+ },
+
+ onStopRequest(request, status) {
+ /* testing here that the redirect was not followed. If it was followed
+ we would see a http status of 200 and status of NS_OK */
+
+ let httpStatus = this.httpStatus;
+ resolve({ status, httpStatus });
+ },
+ };
+ let uri = NetUtil.newURI(url);
+ let channel = NetUtil.newChannel({ uri, loadUsingSystemPrincipal });
+
+ channel.loadFlags |= Ci.nsIChannel.LOAD_DOCUMENT_URI;
+ channel.QueryInterface(Ci.nsIHttpChannelInternal);
+ channel.documentURI = uri;
+ channel.asyncOpen(listener);
+ });
+ }
+
+ get ParserUtils() {
+ if (this._pu != null) {
+ return this._pu;
+ }
+
+ let pu = Cc["@mozilla.org/parserutils;1"].getService(Ci.nsIParserUtils);
+ // We need to create and return our own wrapper.
+ this._pu = {
+ sanitize(src, flags) {
+ return pu.sanitize(src, flags);
+ },
+ convertToPlainText(src, flags, wrapCol) {
+ return pu.convertToPlainText(src, flags, wrapCol);
+ },
+ parseFragment(fragment, flags, isXML, baseURL, element) {
+ let baseURI = baseURL ? NetUtil.newURI(baseURL) : null;
+ return pu.parseFragment(
+ WrapPrivileged.unwrap(fragment),
+ flags,
+ isXML,
+ baseURI,
+ WrapPrivileged.unwrap(element)
+ );
+ },
+ };
+ return this._pu;
+ }
+
+ createDOMWalker(node, showAnonymousContent) {
+ node = WrapPrivileged.unwrap(node);
+ let walker = Cc["@mozilla.org/inspector/deep-tree-walker;1"].createInstance(
+ Ci.inIDeepTreeWalker
+ );
+ walker.showAnonymousContent = showAnonymousContent;
+ walker.init(node.ownerDocument, NodeFilter.SHOW_ALL);
+ walker.currentNode = node;
+ let contentWindow = this.contentWindow;
+ return {
+ get firstChild() {
+ return WrapPrivileged.wrap(walker.firstChild(), contentWindow);
+ },
+ get lastChild() {
+ return WrapPrivileged.wrap(walker.lastChild(), contentWindow);
+ },
+ };
+ }
+
+ observeMutationEvents(mo, node, nativeAnonymousChildList, subtree) {
+ WrapPrivileged.unwrap(mo).observe(WrapPrivileged.unwrap(node), {
+ nativeAnonymousChildList,
+ subtree,
+ });
+ }
+
+ doCommand(window, cmd, param) {
+ switch (cmd) {
+ case "cmd_align":
+ case "cmd_backgroundColor":
+ case "cmd_fontColor":
+ case "cmd_fontFace":
+ case "cmd_fontSize":
+ case "cmd_highlight":
+ case "cmd_insertImageNoUI":
+ case "cmd_insertLinkNoUI":
+ case "cmd_paragraphState":
+ let params = Cu.createCommandParams();
+ params.setStringValue("state_attribute", param);
+ return window.docShell.doCommandWithParams(cmd, params);
+ default:
+ return window.docShell.doCommand(cmd);
+ }
+ }
+
+ isCommandEnabled(window, cmd) {
+ return window.docShell.isCommandEnabled(cmd);
+ }
+
+ setCommandNode(window, node) {
+ return window.docShell.contentViewer
+ .QueryInterface(Ci.nsIContentViewerEdit)
+ .setCommandNode(node);
+ }
+
+ /* Bug 1339006 Runnables of nsIURIClassifier.classify may be labeled by
+ * SystemGroup, but some test cases may run as web content. That would assert
+ * when trying to enter web content from a runnable labeled by the
+ * SystemGroup. To avoid that, we run classify from SpecialPowers which is
+ * chrome-privileged and allowed to run inside SystemGroup
+ */
+
+ doUrlClassify(principal, eventTarget, callback) {
+ let classifierService = Cc[
+ "@mozilla.org/url-classifier/dbservice;1"
+ ].getService(Ci.nsIURIClassifier);
+
+ let wrapCallback = (...args) => {
+ Services.tm.dispatchToMainThread(() => {
+ if (typeof callback == "function") {
+ callback(...args);
+ } else {
+ callback.onClassifyComplete.call(undefined, ...args);
+ }
+ });
+ };
+
+ return classifierService.classify(
+ WrapPrivileged.unwrap(principal),
+ eventTarget,
+ wrapCallback
+ );
+ }
+
+ // TODO: Bug 1353701 - Supports custom event target for labelling.
+ doUrlClassifyLocal(uri, tables, callback) {
+ let classifierService = Cc[
+ "@mozilla.org/url-classifier/dbservice;1"
+ ].getService(Ci.nsIURIClassifier);
+
+ let wrapCallback = results => {
+ Services.tm.dispatchToMainThread(() => {
+ if (typeof callback == "function") {
+ callback(WrapPrivileged.wrap(results, this.contentWindow));
+ } else {
+ callback.onClassifyComplete.call(
+ undefined,
+ WrapPrivileged.wrap(results, this.contentWindow)
+ );
+ }
+ });
+ };
+
+ let feature = classifierService.createFeatureWithTables(
+ "test",
+ tables.split(","),
+ []
+ );
+ return classifierService.asyncClassifyLocalWithFeatures(
+ WrapPrivileged.unwrap(uri),
+ [feature],
+ Ci.nsIUrlClassifierFeature.blocklist,
+ wrapCallback
+ );
+ }
+}
+
+SpecialPowersChild.prototype._proxiedObservers = {
+ "specialpowers-http-notify-request": function(aMessage) {
+ let uri = aMessage.json.uri;
+ Services.obs.notifyObservers(
+ null,
+ "specialpowers-http-notify-request",
+ uri
+ );
+ },
+
+ "specialpowers-service-worker-shutdown": function(aMessage) {
+ Services.obs.notifyObservers(null, "specialpowers-service-worker-shutdown");
+ },
+
+ "specialpowers-csp-on-violate-policy": function(aMessage) {
+ let subject = null;
+
+ try {
+ subject = Services.io.newURI(aMessage.data.subject);
+ } catch (ex) {
+ // if it's not a valid URI it must be an nsISupportsCString
+ subject = Cc["@mozilla.org/supports-cstring;1"].createInstance(
+ Ci.nsISupportsCString
+ );
+ subject.data = aMessage.data.subject;
+ }
+ Services.obs.notifyObservers(
+ subject,
+ "specialpowers-csp-on-violate-policy",
+ aMessage.data.data
+ );
+ },
+
+ "specialpowers-xfo-on-violate-policy": function(aMessage) {
+ let subject = Services.io.newURI(aMessage.data.subject);
+ Services.obs.notifyObservers(
+ subject,
+ "specialpowers-xfo-on-violate-policy",
+ aMessage.data.data
+ );
+ },
+};
+
+SpecialPowersChild.prototype.EARLY_BETA_OR_EARLIER =
+ AppConstants.EARLY_BETA_OR_EARLIER;