forked from mirrors/gecko-dev
da381d04b7
Believe it or not, the memory these references hold alive is significant. Nulling them out saves 5-10K per process. MozReview-Commit-ID: JONjE48yE8I --HG-- extra : rebase_source : 49adc538070eecb9183e6e052e6e43db9c4c7a99 extra : histedit_source : 699f49fad1bfa69b8c511bf96187096e751c8606
396 lines
12 KiB
JavaScript
396 lines
12 KiB
JavaScript
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
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/* 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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/* This content script should work in any browser or iframe and should not
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* depend on the frame being contained in tabbrowser. */
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/* eslint-env mozilla/frame-script */
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/* eslint no-unused-vars: ["error", {args: "none"}] */
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ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
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ChromeUtils.import("resource://gre/modules/Services.jsm");
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// TabChildGlobal
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var global = this;
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XPCOMUtils.defineLazyModuleGetters(this, {
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BlockedSiteContent: "resource:///modules/BlockedSiteContent.jsm",
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ContentLinkHandler: "resource:///modules/ContentLinkHandler.jsm",
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ContentMetaHandler: "resource:///modules/ContentMetaHandler.jsm",
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ContentWebRTC: "resource:///modules/ContentWebRTC.jsm",
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LoginFormFactory: "resource://gre/modules/LoginManagerContent.jsm",
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InsecurePasswordUtils: "resource://gre/modules/InsecurePasswordUtils.jsm",
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PluginContent: "resource:///modules/PluginContent.jsm",
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FormSubmitObserver: "resource:///modules/FormSubmitObserver.jsm",
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NetErrorContent: "resource:///modules/NetErrorContent.jsm",
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PageMetadata: "resource://gre/modules/PageMetadata.jsm",
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WebNavigationFrames: "resource://gre/modules/WebNavigationFrames.jsm",
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ContextMenu: "resource:///modules/ContextMenu.jsm",
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});
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XPCOMUtils.defineLazyProxy(this, "contextMenu", () => {
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return new ContextMenu(global);
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});
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XPCOMUtils.defineLazyProxy(this, "ClickEventHandler", () => {
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let tmp = {};
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ChromeUtils.import("resource:///modules/ClickEventHandler.jsm", tmp);
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return new tmp.ClickEventHandler(global);
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});
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XPCOMUtils.defineLazyGetter(this, "LoginManagerContent", () => {
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let tmp = {};
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ChromeUtils.import("resource://gre/modules/LoginManagerContent.jsm", tmp);
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tmp.LoginManagerContent.setupEventListeners(global);
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return tmp.LoginManagerContent;
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});
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XPCOMUtils.defineLazyProxy(this, "formSubmitObserver", () => {
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return new FormSubmitObserver(content, this);
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}, {
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// stub QI
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QueryInterface: ChromeUtils.generateQI([Ci.nsIFormSubmitObserver, Ci.nsISupportsWeakReference])
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});
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XPCOMUtils.defineLazyProxy(this, "PageInfoListener",
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"resource:///modules/PageInfoListener.jsm");
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XPCOMUtils.defineLazyProxy(this, "LightWeightThemeWebInstallListener",
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"resource:///modules/LightWeightThemeWebInstallListener.jsm");
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Services.els.addSystemEventListener(global, "contextmenu", contextMenu, false);
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Services.obs.addObserver(formSubmitObserver, "invalidformsubmit", true);
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addMessageListener("PageInfo:getData", PageInfoListener);
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// NOTE: Much of this logic is duplicated in BrowserCLH.js for Android.
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addMessageListener("RemoteLogins:fillForm", function(message) {
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// intercept if ContextMenu.jsm had sent a plain object for remote targets
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message.objects.inputElement = contextMenu.getTarget(message, "inputElement");
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LoginManagerContent.receiveMessage(message, content);
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});
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addEventListener("DOMFormHasPassword", function(event) {
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LoginManagerContent.onDOMFormHasPassword(event, content);
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let formLike = LoginFormFactory.createFromForm(event.originalTarget);
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InsecurePasswordUtils.reportInsecurePasswords(formLike);
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});
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addEventListener("DOMInputPasswordAdded", function(event) {
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LoginManagerContent.onDOMInputPasswordAdded(event, content);
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let formLike = LoginFormFactory.createFromField(event.originalTarget);
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InsecurePasswordUtils.reportInsecurePasswords(formLike);
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});
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addEventListener("DOMAutoComplete", function(event) {
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LoginManagerContent.onUsernameInput(event);
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});
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var AboutBlockedSiteListener = {
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init(chromeGlobal) {
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addMessageListener("DeceptiveBlockedDetails", this);
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chromeGlobal.addEventListener("AboutBlockedLoaded", this, false, true);
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this.init = null;
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},
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get isBlockedSite() {
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return content.document.documentURI.startsWith("about:blocked");
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},
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receiveMessage(msg) {
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if (!this.isBlockedSite) {
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return;
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}
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BlockedSiteContent.receiveMessage(global, msg);
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},
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handleEvent(aEvent) {
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if (!this.isBlockedSite) {
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return;
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}
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if (aEvent.type != "AboutBlockedLoaded") {
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return;
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}
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BlockedSiteContent.handleEvent(global, aEvent);
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},
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};
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AboutBlockedSiteListener.init(this);
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this.AboutNetAndCertErrorListener = {
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init(chromeGlobal) {
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addMessageListener("CertErrorDetails", this);
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addMessageListener("Browser:CaptivePortalFreed", this);
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chromeGlobal.addEventListener("AboutNetErrorLoad", this, false, true);
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chromeGlobal.addEventListener("AboutNetErrorOpenCaptivePortal", this, false, true);
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chromeGlobal.addEventListener("AboutNetErrorSetAutomatic", this, false, true);
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chromeGlobal.addEventListener("AboutNetErrorResetPreferences", this, false, true);
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this.init = null;
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},
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isAboutNetError(doc) {
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return doc.documentURI.startsWith("about:neterror");
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},
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isAboutCertError(doc) {
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return doc.documentURI.startsWith("about:certerror");
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},
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receiveMessage(msg) {
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if (msg.name == "CertErrorDetails") {
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let frameDocShell = WebNavigationFrames.findDocShell(msg.data.frameId, docShell);
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// We need nsIWebNavigation to access docShell.document.
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frameDocShell && frameDocShell.QueryInterface(Ci.nsIWebNavigation);
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if (!frameDocShell || !this.isAboutCertError(frameDocShell.document)) {
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return;
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}
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NetErrorContent.onCertErrorDetails(global, msg, frameDocShell);
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} else if (msg.name == "Browser:CaptivePortalFreed") {
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// TODO: This check is not correct for frames.
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if (!this.isAboutCertError(content.document)) {
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return;
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}
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this.onCaptivePortalFreed(msg);
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}
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},
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onCaptivePortalFreed(msg) {
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content.dispatchEvent(new content.CustomEvent("AboutNetErrorCaptivePortalFreed"));
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},
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handleEvent(aEvent) {
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// Documents have a null ownerDocument.
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let doc = aEvent.originalTarget.ownerDocument || aEvent.originalTarget;
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if (!this.isAboutNetError(doc) && !this.isAboutCertError(doc)) {
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return;
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}
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NetErrorContent.handleEvent(global, aEvent);
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},
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};
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AboutNetAndCertErrorListener.init(this);
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Services.els.addSystemEventListener(global, "click", ClickEventHandler, true);
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new ContentLinkHandler(this);
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ContentMetaHandler.init(this);
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var PluginContentStub = {
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EVENTS: [
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"PluginCrashed",
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"PluginOutdated",
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"PluginInstantiated",
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"PluginRemoved",
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"HiddenPlugin",
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],
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MESSAGES: [
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"BrowserPlugins:ActivatePlugins",
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"BrowserPlugins:NotificationShown",
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"BrowserPlugins:ContextMenuCommand",
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"BrowserPlugins:NPAPIPluginProcessCrashed",
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"BrowserPlugins:CrashReportSubmitted",
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"BrowserPlugins:Test:ClearCrashData",
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],
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_pluginContent: null,
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get pluginContent() {
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if (!this._pluginContent) {
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this._pluginContent = new PluginContent(global);
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}
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return this._pluginContent;
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},
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init() {
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addEventListener("unload", this);
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addEventListener("PluginBindingAttached", this, true, true);
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for (let event of this.EVENTS) {
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addEventListener(event, this, true);
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}
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for (let msg of this.MESSAGES) {
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addMessageListener(msg, this);
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}
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Services.obs.addObserver(this, "decoder-doctor-notification");
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this.init = null;
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},
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uninit() {
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Services.obs.removeObserver(this, "decoder-doctor-notification");
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},
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observe(subject, topic, data) {
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return this.pluginContent.observe(subject, topic, data);
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},
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handleEvent(event) {
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if (event.type === "unload") {
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return this.uninit();
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}
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return this.pluginContent.handleEvent(event);
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},
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receiveMessage(msg) {
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return this.pluginContent.receiveMessage(msg);
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},
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};
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PluginContentStub.init();
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// This is a temporary hack to prevent regressions (bug 1471327).
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void content;
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addEventListener("DOMWindowFocus", function(event) {
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sendAsyncMessage("DOMWindowFocus", {});
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}, false);
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// We use this shim so that ContentWebRTC.jsm will not be loaded until
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// it is actually needed.
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var ContentWebRTCShim = message => ContentWebRTC.receiveMessage(message);
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addMessageListener("rtcpeer:Allow", ContentWebRTCShim);
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addMessageListener("rtcpeer:Deny", ContentWebRTCShim);
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addMessageListener("webrtc:Allow", ContentWebRTCShim);
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addMessageListener("webrtc:Deny", ContentWebRTCShim);
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addMessageListener("webrtc:StopSharing", ContentWebRTCShim);
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var PageMetadataMessenger = {
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init() {
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addMessageListener("PageMetadata:GetPageData", this);
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addMessageListener("PageMetadata:GetMicroformats", this);
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this.init = null;
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},
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receiveMessage(message) {
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switch (message.name) {
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case "PageMetadata:GetPageData": {
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let target = contextMenu.getTarget(message);
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let result = PageMetadata.getData(content.document, target);
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sendAsyncMessage("PageMetadata:PageDataResult", result);
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break;
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}
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case "PageMetadata:GetMicroformats": {
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let target = contextMenu.getTarget(message);
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let result = PageMetadata.getMicroformats(content.document, target);
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sendAsyncMessage("PageMetadata:MicroformatsResult", result);
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break;
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}
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}
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}
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};
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PageMetadataMessenger.init();
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addEventListener("InstallBrowserTheme", LightWeightThemeWebInstallListener, false, true);
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addEventListener("PreviewBrowserTheme", LightWeightThemeWebInstallListener, false, true);
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addEventListener("ResetBrowserThemePreview", LightWeightThemeWebInstallListener, false, true);
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let OfflineApps = {
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_docId: 0,
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_docIdMap: new Map(),
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_docManifestSet: new Set(),
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_observerAdded: false,
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registerWindow(aWindow) {
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if (!this._observerAdded) {
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this._observerAdded = true;
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Services.obs.addObserver(this, "offline-cache-update-completed", true);
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}
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let manifestURI = this._getManifestURI(aWindow);
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this._docManifestSet.add(manifestURI.spec);
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},
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handleEvent(event) {
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if (event.type == "MozApplicationManifest") {
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this.offlineAppRequested(event.originalTarget.defaultView);
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}
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},
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_getManifestURI(aWindow) {
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if (!aWindow.document.documentElement)
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return null;
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var attr = aWindow.document.documentElement.getAttribute("manifest");
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if (!attr)
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return null;
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try {
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return Services.io.newURI(attr, aWindow.document.characterSet,
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Services.io.newURI(aWindow.location.href));
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} catch (e) {
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return null;
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}
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},
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offlineAppRequested(aContentWindow) {
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this.registerWindow(aContentWindow);
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if (!Services.prefs.getBoolPref("browser.offline-apps.notify")) {
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return;
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}
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let currentURI = aContentWindow.document.documentURIObject;
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// don't bother showing UI if the user has already made a decision
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if (Services.perms.testExactPermission(currentURI, "offline-app") != Services.perms.UNKNOWN_ACTION)
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return;
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try {
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if (Services.prefs.getBoolPref("offline-apps.allow_by_default")) {
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// all pages can use offline capabilities, no need to ask the user
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return;
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}
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} catch (e) {
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// this pref isn't set by default, ignore failures
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}
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let docId = ++this._docId;
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this._docIdMap.set(docId, Cu.getWeakReference(aContentWindow.document));
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sendAsyncMessage("OfflineApps:RequestPermission", {
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uri: currentURI.spec,
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docId,
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});
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},
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_startFetching(aDocument) {
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if (!aDocument.documentElement)
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return;
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let manifestURI = this._getManifestURI(aDocument.defaultView);
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if (!manifestURI)
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return;
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var updateService = Cc["@mozilla.org/offlinecacheupdate-service;1"].
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getService(Ci.nsIOfflineCacheUpdateService);
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updateService.scheduleUpdate(manifestURI, aDocument.documentURIObject,
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aDocument.nodePrincipal, aDocument.defaultView);
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},
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receiveMessage(aMessage) {
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if (aMessage.name == "OfflineApps:StartFetching") {
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let doc = this._docIdMap.get(aMessage.data.docId);
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doc = doc && doc.get();
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if (doc) {
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this._startFetching(doc);
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}
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this._docIdMap.delete(aMessage.data.docId);
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}
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},
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observe(aSubject, aTopic, aState) {
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if (aTopic == "offline-cache-update-completed") {
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let cacheUpdate = aSubject.QueryInterface(Ci.nsIOfflineCacheUpdate);
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let uri = cacheUpdate.manifestURI;
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if (uri && this._docManifestSet.has(uri.spec)) {
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sendAsyncMessage("OfflineApps:CheckUsage", {uri: uri.spec});
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}
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}
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},
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QueryInterface: ChromeUtils.generateQI([Ci.nsIObserver,
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Ci.nsISupportsWeakReference]),
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};
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addEventListener("MozApplicationManifest", OfflineApps, false);
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addMessageListener("OfflineApps:StartFetching", OfflineApps);
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