1422 lines
48 KiB
JavaScript
1422 lines
48 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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var {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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Cu.import("resource://gre/modules/Services.jsm");
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Cu.import("resource:///modules/ContentWebRTC.jsm");
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Cu.import("resource:///modules/ContentObservers.jsm");
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Cu.import("resource://gre/modules/InlineSpellChecker.jsm");
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Cu.import("resource://gre/modules/InlineSpellCheckerContent.jsm");
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Cu.import("resource://gre/modules/Task.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "E10SUtils",
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"resource:///modules/E10SUtils.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "BrowserUtils",
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"resource://gre/modules/BrowserUtils.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "ContentLinkHandler",
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"resource:///modules/ContentLinkHandler.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "LoginManagerContent",
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"resource://gre/modules/LoginManagerContent.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "LoginFormFactory",
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"resource://gre/modules/LoginManagerContent.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "InsecurePasswordUtils",
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"resource://gre/modules/InsecurePasswordUtils.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "PluginContent",
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"resource:///modules/PluginContent.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "PrivateBrowsingUtils",
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"resource://gre/modules/PrivateBrowsingUtils.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "FormSubmitObserver",
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"resource:///modules/FormSubmitObserver.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "PageMetadata",
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"resource://gre/modules/PageMetadata.jsm");
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XPCOMUtils.defineLazyModuleGetter(this, "PlacesUIUtils",
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"resource:///modules/PlacesUIUtils.jsm");
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XPCOMUtils.defineLazyGetter(this, "PageMenuChild", function() {
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let tmp = {};
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Cu.import("resource://gre/modules/PageMenu.jsm", tmp);
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return new tmp.PageMenuChild();
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});
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XPCOMUtils.defineLazyModuleGetter(this, "Feeds",
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"resource:///modules/Feeds.jsm");
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Cu.importGlobalProperties(["URL"]);
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// TabChildGlobal
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var global = this;
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// Load the form validation popup handler
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var formSubmitObserver = new FormSubmitObserver(content, this);
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addMessageListener("ContextMenu:DoCustomCommand", function(message) {
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E10SUtils.wrapHandlingUserInput(
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content, message.data.handlingUserInput,
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() => PageMenuChild.executeMenu(message.data.generatedItemId));
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});
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addMessageListener("RemoteLogins:fillForm", function(message) {
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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.target);
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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.target);
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InsecurePasswordUtils.reportInsecurePasswords(formLike);
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});
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addEventListener("pageshow", function(event) {
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LoginManagerContent.onPageShow(event, content);
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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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addEventListener("blur", function(event) {
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LoginManagerContent.onUsernameInput(event);
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});
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var handleContentContextMenu = function (event) {
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let defaultPrevented = event.defaultPrevented;
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if (!Services.prefs.getBoolPref("dom.event.contextmenu.enabled")) {
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let plugin = null;
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try {
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plugin = event.target.QueryInterface(Ci.nsIObjectLoadingContent);
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} catch (e) {}
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if (plugin && plugin.displayedType == Ci.nsIObjectLoadingContent.TYPE_PLUGIN) {
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// Don't open a context menu for plugins.
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return;
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}
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defaultPrevented = false;
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}
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if (defaultPrevented)
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return;
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let addonInfo = {};
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let subject = {
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event: event,
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addonInfo: addonInfo,
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};
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subject.wrappedJSObject = subject;
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Services.obs.notifyObservers(subject, "content-contextmenu", null);
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let doc = event.target.ownerDocument;
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let docLocation = doc.mozDocumentURIIfNotForErrorPages;
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docLocation = docLocation && docLocation.spec;
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let charSet = doc.characterSet;
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let baseURI = doc.baseURI;
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let referrer = doc.referrer;
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let referrerPolicy = doc.referrerPolicy;
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let frameOuterWindowID = doc.defaultView.QueryInterface(Ci.nsIInterfaceRequestor)
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.getInterface(Ci.nsIDOMWindowUtils)
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.outerWindowID;
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let loginFillInfo = LoginManagerContent.getFieldContext(event.target);
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// The same-origin check will be done in nsContextMenu.openLinkInTab.
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let parentAllowsMixedContent = !!docShell.mixedContentChannel;
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// get referrer attribute from clicked link and parse it
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// if per element referrer is enabled, the element referrer overrules
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// the document wide referrer
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if (Services.prefs.getBoolPref("network.http.enablePerElementReferrer")) {
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let referrerAttrValue = Services.netUtils.parseAttributePolicyString(event.target.
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getAttribute("referrerpolicy"));
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if (referrerAttrValue !== Ci.nsIHttpChannel.REFERRER_POLICY_UNSET) {
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referrerPolicy = referrerAttrValue;
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}
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}
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let disableSetDesktopBg = null;
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// Media related cache info parent needs for saving
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let contentType = null;
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let contentDisposition = null;
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if (event.target.nodeType == Ci.nsIDOMNode.ELEMENT_NODE &&
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event.target instanceof Ci.nsIImageLoadingContent &&
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event.target.currentURI) {
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disableSetDesktopBg = disableSetDesktopBackground(event.target);
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try {
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let imageCache =
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Cc["@mozilla.org/image/tools;1"].getService(Ci.imgITools)
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.getImgCacheForDocument(doc);
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let props =
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imageCache.findEntryProperties(event.target.currentURI, doc);
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try {
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contentType = props.get("type", Ci.nsISupportsCString).data;
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} catch (e) {}
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try {
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contentDisposition =
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props.get("content-disposition", Ci.nsISupportsCString).data;
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} catch (e) {}
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} catch (e) {}
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}
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let selectionInfo = BrowserUtils.getSelectionDetails(content);
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if (Services.appinfo.processType == Services.appinfo.PROCESS_TYPE_CONTENT) {
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let editFlags = SpellCheckHelper.isEditable(event.target, content);
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let spellInfo;
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if (editFlags &
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(SpellCheckHelper.EDITABLE | SpellCheckHelper.CONTENTEDITABLE)) {
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spellInfo =
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InlineSpellCheckerContent.initContextMenu(event, editFlags, this);
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}
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// Set the event target first as the copy image command needs it to
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// determine what was context-clicked on. Then, update the state of the
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// commands on the context menu.
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docShell.contentViewer.QueryInterface(Ci.nsIContentViewerEdit)
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.setCommandNode(event.target);
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event.target.ownerGlobal.updateCommands("contentcontextmenu");
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let customMenuItems = PageMenuChild.build(event.target);
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let principal = doc.nodePrincipal;
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sendRpcMessage("contextmenu",
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{ editFlags, spellInfo, customMenuItems, addonInfo,
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principal, docLocation, charSet, baseURI, referrer,
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referrerPolicy, contentType, contentDisposition,
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frameOuterWindowID, selectionInfo, disableSetDesktopBg,
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loginFillInfo, parentAllowsMixedContent },
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{ event, popupNode: event.target });
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}
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else {
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// Break out to the parent window and pass the add-on info along
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let browser = docShell.chromeEventHandler;
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let mainWin = browser.ownerGlobal;
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mainWin.gContextMenuContentData = {
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isRemote: false,
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event: event,
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popupNode: event.target,
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browser: browser,
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addonInfo: addonInfo,
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documentURIObject: doc.documentURIObject,
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docLocation: docLocation,
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charSet: charSet,
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referrer: referrer,
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referrerPolicy: referrerPolicy,
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contentType: contentType,
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contentDisposition: contentDisposition,
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selectionInfo: selectionInfo,
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disableSetDesktopBackground: disableSetDesktopBg,
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loginFillInfo,
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parentAllowsMixedContent,
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};
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}
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}
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Cc["@mozilla.org/eventlistenerservice;1"]
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.getService(Ci.nsIEventListenerService)
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.addSystemEventListener(global, "contextmenu", handleContentContextMenu, false);
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// Values for telemtery bins: see TLS_ERROR_REPORT_UI in Histograms.json
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const TLS_ERROR_REPORT_TELEMETRY_UI_SHOWN = 0;
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const TLS_ERROR_REPORT_TELEMETRY_EXPANDED = 1;
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const TLS_ERROR_REPORT_TELEMETRY_SUCCESS = 6;
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const TLS_ERROR_REPORT_TELEMETRY_FAILURE = 7;
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const SEC_ERROR_BASE = Ci.nsINSSErrorsService.NSS_SEC_ERROR_BASE;
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const MOZILLA_PKIX_ERROR_BASE = Ci.nsINSSErrorsService.MOZILLA_PKIX_ERROR_BASE;
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const SEC_ERROR_EXPIRED_CERTIFICATE = SEC_ERROR_BASE + 11;
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const SEC_ERROR_UNKNOWN_ISSUER = SEC_ERROR_BASE + 13;
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const SEC_ERROR_EXPIRED_ISSUER_CERTIFICATE = SEC_ERROR_BASE + 30;
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const SEC_ERROR_OCSP_FUTURE_RESPONSE = SEC_ERROR_BASE + 131;
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const SEC_ERROR_OCSP_OLD_RESPONSE = SEC_ERROR_BASE + 132;
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const MOZILLA_PKIX_ERROR_NOT_YET_VALID_CERTIFICATE = MOZILLA_PKIX_ERROR_BASE + 5;
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const MOZILLA_PKIX_ERROR_NOT_YET_VALID_ISSUER_CERTIFICATE = MOZILLA_PKIX_ERROR_BASE + 6;
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const PREF_BLOCKLIST_CLOCK_SKEW_SECONDS = "services.blocklist.clock_skew_seconds";
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const PREF_SSL_IMPACT_ROOTS = ["security.tls.version.", "security.ssl3."];
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const PREF_SSL_IMPACT = PREF_SSL_IMPACT_ROOTS.reduce((prefs, root) => {
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return prefs.concat(Services.prefs.getChildList(root));
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}, []);
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function getSerializedSecurityInfo(docShell) {
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let serhelper = Cc["@mozilla.org/network/serialization-helper;1"]
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.getService(Ci.nsISerializationHelper);
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let securityInfo = docShell.failedChannel && docShell.failedChannel.securityInfo;
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if (!securityInfo) {
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return "";
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}
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securityInfo.QueryInterface(Ci.nsITransportSecurityInfo)
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.QueryInterface(Ci.nsISerializable);
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return serhelper.serializeToString(securityInfo);
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}
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var AboutNetAndCertErrorListener = {
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init: function(chromeGlobal) {
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addMessageListener("CertErrorDetails", this);
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chromeGlobal.addEventListener('AboutNetErrorLoad', this, false, true);
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chromeGlobal.addEventListener('AboutNetErrorSetAutomatic', this, false, true);
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chromeGlobal.addEventListener('AboutNetErrorOverride', this, false, true);
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chromeGlobal.addEventListener('AboutNetErrorResetPreferences', this, false, true);
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},
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get isAboutNetError() {
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return content.document.documentURI.startsWith("about:neterror");
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},
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get isAboutCertError() {
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return content.document.documentURI.startsWith("about:certerror");
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},
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receiveMessage: function(msg) {
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if (!this.isAboutCertError) {
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return;
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}
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switch (msg.name) {
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case "CertErrorDetails":
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this.onCertErrorDetails(msg);
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break;
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}
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},
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onCertErrorDetails(msg) {
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let div = content.document.getElementById("certificateErrorText");
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div.textContent = msg.data.info;
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let baseURL = Services.urlFormatter.formatURLPref("app.support.baseURL");
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switch (msg.data.code) {
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case SEC_ERROR_UNKNOWN_ISSUER:
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break;
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// in case the certificate expired we make sure the system clock
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// matches settings server (kinto) time
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case SEC_ERROR_EXPIRED_CERTIFICATE:
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case SEC_ERROR_EXPIRED_ISSUER_CERTIFICATE:
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case SEC_ERROR_OCSP_FUTURE_RESPONSE:
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case SEC_ERROR_OCSP_OLD_RESPONSE:
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case MOZILLA_PKIX_ERROR_NOT_YET_VALID_CERTIFICATE:
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case MOZILLA_PKIX_ERROR_NOT_YET_VALID_ISSUER_CERTIFICATE:
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let appBuildId = Services.appinfo.appBuildID;
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let year = parseInt(appBuildID.substr(0, 4), 10);
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let month = parseInt(appBuildID.substr(4, 2), 10) - 1;
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let day = parseInt(appBuildID.substr(6, 2), 10);
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let buildDate = new Date(year, month, day);
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let systemDate = new Date();
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// if the difference is more than a day
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if (buildDate > systemDate) {
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let formatter = new Intl.DateTimeFormat();
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content.document.getElementById("wrongSystemTime_URL")
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.textContent = content.document.location.hostname;
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content.document.getElementById("wrongSystemTime_systemDate")
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.textContent = formatter.format(systemDate);
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content.document.getElementById("errorShortDesc")
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.style.display = "none";
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content.document.getElementById("wrongSystemTimePanel")
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.style.display = "block";
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}
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break;
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}
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},
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handleEvent: function(aEvent) {
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if (!this.isAboutNetError && !this.isAboutCertError) {
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return;
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}
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switch (aEvent.type) {
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case "AboutNetErrorLoad":
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this.onPageLoad(aEvent);
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break;
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case "AboutNetErrorSetAutomatic":
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this.onSetAutomatic(aEvent);
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break;
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case "AboutNetErrorOverride":
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this.onOverride(aEvent);
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break;
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case "AboutNetErrorResetPreferences":
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this.onResetPreferences(aEvent);
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break;
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}
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},
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changedCertPrefs: function () {
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for (let prefName of PREF_SSL_IMPACT) {
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if (Services.prefs.prefHasUserValue(prefName)) {
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return true;
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}
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}
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return false;
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},
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onPageLoad: function(evt) {
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if (this.isAboutCertError) {
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let originalTarget = evt.originalTarget;
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let ownerDoc = originalTarget.ownerDocument;
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ClickEventHandler.onCertError(originalTarget, ownerDoc);
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}
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},
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onResetPreferences: function(evt) {
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sendAsyncMessage("Browser:ResetSSLPreferences");
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},
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onOverride: function(evt) {
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let {host, port} = content.document.mozDocumentURIIfNotForErrorPages;
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sendAsyncMessage("Browser:OverrideWeakCrypto", { uri: {host, port} });
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}
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}
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AboutNetAndCertErrorListener.init(this);
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var ClickEventHandler = {
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init: function init() {
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Cc["@mozilla.org/eventlistenerservice;1"]
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.getService(Ci.nsIEventListenerService)
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.addSystemEventListener(global, "click", this, true);
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},
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handleEvent: function(event) {
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if (!event.isTrusted || event.defaultPrevented || event.button == 2) {
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return;
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}
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let originalTarget = event.originalTarget;
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let ownerDoc = originalTarget.ownerDocument;
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if (!ownerDoc) {
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return;
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}
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// Handle click events from about pages
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if (ownerDoc.documentURI.startsWith("about:certerror")) {
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this.onCertError(originalTarget, ownerDoc);
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return;
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} else if (ownerDoc.documentURI.startsWith("about:blocked")) {
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this.onAboutBlocked(originalTarget, ownerDoc);
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return;
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} else if (ownerDoc.documentURI.startsWith("about:neterror")) {
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this.onAboutNetError(event, ownerDoc.documentURI);
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return;
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}
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let [href, node, principal] = this._hrefAndLinkNodeForClickEvent(event);
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// get referrer attribute from clicked link and parse it
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// if per element referrer is enabled, the element referrer overrules
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// the document wide referrer
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let referrerPolicy = ownerDoc.referrerPolicy;
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if (Services.prefs.getBoolPref("network.http.enablePerElementReferrer") &&
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node) {
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let referrerAttrValue = Services.netUtils.parseAttributePolicyString(node.
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getAttribute("referrerpolicy"));
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if (referrerAttrValue !== Ci.nsIHttpChannel.REFERRER_POLICY_UNSET) {
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referrerPolicy = referrerAttrValue;
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}
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}
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let json = { button: event.button, shiftKey: event.shiftKey,
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ctrlKey: event.ctrlKey, metaKey: event.metaKey,
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altKey: event.altKey, href: null, title: null,
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bookmark: false, referrerPolicy: referrerPolicy,
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triggeringPrincipal: principal,
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originAttributes: principal ? principal.originAttributes : {},
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isContentWindowPrivate: PrivateBrowsingUtils.isContentWindowPrivate(ownerDoc.defaultView)};
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if (href) {
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try {
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BrowserUtils.urlSecurityCheck(href, principal);
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} catch (e) {
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return;
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}
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json.href = href;
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if (node) {
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json.title = node.getAttribute("title");
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if (event.button == 0 && !event.ctrlKey && !event.shiftKey &&
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!event.altKey && !event.metaKey) {
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json.bookmark = node.getAttribute("rel") == "sidebar";
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if (json.bookmark) {
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event.preventDefault(); // Need to prevent the pageload.
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}
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}
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}
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json.noReferrer = BrowserUtils.linkHasNoReferrer(node)
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// Check if the link needs to be opened with mixed content allowed.
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// Only when the owner doc has |mixedContentChannel| and the same origin
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// should we allow mixed content.
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json.allowMixedContent = false;
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let docshell = ownerDoc.defaultView.QueryInterface(Ci.nsIInterfaceRequestor)
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.getInterface(Ci.nsIWebNavigation)
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.QueryInterface(Ci.nsIDocShell);
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if (docShell.mixedContentChannel) {
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const sm = Services.scriptSecurityManager;
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try {
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let targetURI = BrowserUtils.makeURI(href);
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sm.checkSameOriginURI(docshell.mixedContentChannel.URI, targetURI, false);
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json.allowMixedContent = true;
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} catch (e) {}
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}
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json.originPrincipal = ownerDoc.nodePrincipal;
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json.triggeringPrincipal = ownerDoc.nodePrincipal;
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sendAsyncMessage("Content:Click", json);
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return;
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}
|
|
|
|
// This might be middle mouse navigation.
|
|
if (event.button == 1) {
|
|
sendAsyncMessage("Content:Click", json);
|
|
}
|
|
},
|
|
|
|
onCertError: function (targetElement, ownerDoc) {
|
|
let docShell = ownerDoc.defaultView.QueryInterface(Ci.nsIInterfaceRequestor)
|
|
.getInterface(Ci.nsIWebNavigation)
|
|
.QueryInterface(Ci.nsIDocShell);
|
|
sendAsyncMessage("Browser:CertExceptionError", {
|
|
location: ownerDoc.location.href,
|
|
elementId: targetElement.getAttribute("id"),
|
|
isTopFrame: (ownerDoc.defaultView.parent === ownerDoc.defaultView),
|
|
securityInfoAsString: getSerializedSecurityInfo(docShell),
|
|
});
|
|
},
|
|
|
|
onAboutBlocked: function (targetElement, ownerDoc) {
|
|
var reason = 'phishing';
|
|
if (/e=malwareBlocked/.test(ownerDoc.documentURI)) {
|
|
reason = 'malware';
|
|
} else if (/e=unwantedBlocked/.test(ownerDoc.documentURI)) {
|
|
reason = 'unwanted';
|
|
}
|
|
sendAsyncMessage("Browser:SiteBlockedError", {
|
|
location: ownerDoc.location.href,
|
|
reason: reason,
|
|
elementId: targetElement.getAttribute("id"),
|
|
isTopFrame: (ownerDoc.defaultView.parent === ownerDoc.defaultView)
|
|
});
|
|
},
|
|
|
|
onAboutNetError: function (event, documentURI) {
|
|
let elmId = event.originalTarget.getAttribute("id");
|
|
if (elmId == "returnButton") {
|
|
sendAsyncMessage("Browser:SSLErrorGoBack", {});
|
|
return;
|
|
}
|
|
if (elmId != "errorTryAgain" || !/e=netOffline/.test(documentURI)) {
|
|
return;
|
|
}
|
|
// browser front end will handle clearing offline mode and refreshing
|
|
// the page *if* we're in offline mode now. Otherwise let the error page
|
|
// handle the click.
|
|
if (Services.io.offline) {
|
|
event.preventDefault();
|
|
sendAsyncMessage("Browser:EnableOnlineMode", {});
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Extracts linkNode and href for the current click target.
|
|
*
|
|
* @param event
|
|
* The click event.
|
|
* @return [href, linkNode, linkPrincipal].
|
|
*
|
|
* @note linkNode will be null if the click wasn't on an anchor
|
|
* element. This includes SVG links, because callers expect |node|
|
|
* to behave like an <a> element, which SVG links (XLink) don't.
|
|
*/
|
|
_hrefAndLinkNodeForClickEvent: function(event) {
|
|
function isHTMLLink(aNode) {
|
|
// Be consistent with what nsContextMenu.js does.
|
|
return ((aNode instanceof content.HTMLAnchorElement && aNode.href) ||
|
|
(aNode instanceof content.HTMLAreaElement && aNode.href) ||
|
|
aNode instanceof content.HTMLLinkElement);
|
|
}
|
|
|
|
let node = event.target;
|
|
while (node && !isHTMLLink(node)) {
|
|
node = node.parentNode;
|
|
}
|
|
|
|
if (node)
|
|
return [node.href, node, node.ownerDocument.nodePrincipal];
|
|
|
|
// If there is no linkNode, try simple XLink.
|
|
let href, baseURI;
|
|
node = event.target;
|
|
while (node && !href) {
|
|
if (node.nodeType == content.Node.ELEMENT_NODE &&
|
|
(node.localName == "a" ||
|
|
node.namespaceURI == "http://www.w3.org/1998/Math/MathML")) {
|
|
href = node.getAttribute("href") ||
|
|
node.getAttributeNS("http://www.w3.org/1999/xlink", "href");
|
|
if (href) {
|
|
baseURI = node.ownerDocument.baseURIObject;
|
|
break;
|
|
}
|
|
}
|
|
node = node.parentNode;
|
|
}
|
|
|
|
// In case of XLink, we don't return the node we got href from since
|
|
// callers expect <a>-like elements.
|
|
// Note: makeURI() will throw if aUri is not a valid URI.
|
|
return [href ? BrowserUtils.makeURI(href, null, baseURI).spec : null, null,
|
|
node && node.ownerDocument.nodePrincipal];
|
|
}
|
|
};
|
|
ClickEventHandler.init();
|
|
|
|
ContentLinkHandler.init(this);
|
|
|
|
// TODO: Load this lazily so the JSM is run only if a relevant event/message fires.
|
|
var pluginContent = new PluginContent(global);
|
|
|
|
addEventListener("DOMWebNotificationClicked", function(event) {
|
|
sendAsyncMessage("DOMWebNotificationClicked", {});
|
|
}, false);
|
|
|
|
addEventListener("DOMServiceWorkerFocusClient", function(event) {
|
|
sendAsyncMessage("DOMServiceWorkerFocusClient", {});
|
|
}, false);
|
|
|
|
ContentWebRTC.init();
|
|
addMessageListener("rtcpeer:Allow", ContentWebRTC);
|
|
addMessageListener("rtcpeer:Deny", ContentWebRTC);
|
|
addMessageListener("webrtc:Allow", ContentWebRTC);
|
|
addMessageListener("webrtc:Deny", ContentWebRTC);
|
|
addMessageListener("webrtc:StopSharing", ContentWebRTC);
|
|
addMessageListener("webrtc:StartBrowserSharing", () => {
|
|
let windowID = content.QueryInterface(Ci.nsIInterfaceRequestor)
|
|
.getInterface(Ci.nsIDOMWindowUtils).outerWindowID;
|
|
sendAsyncMessage("webrtc:response:StartBrowserSharing", {
|
|
windowID: windowID
|
|
});
|
|
});
|
|
|
|
addEventListener("pageshow", function(event) {
|
|
if (event.target == content.document) {
|
|
sendAsyncMessage("PageVisibility:Show", {
|
|
persisted: event.persisted,
|
|
});
|
|
}
|
|
});
|
|
addEventListener("pagehide", function(event) {
|
|
if (event.target == content.document) {
|
|
sendAsyncMessage("PageVisibility:Hide", {
|
|
persisted: event.persisted,
|
|
});
|
|
}
|
|
});
|
|
|
|
var PageMetadataMessenger = {
|
|
init() {
|
|
addMessageListener("PageMetadata:GetPageData", this);
|
|
addMessageListener("PageMetadata:GetMicroformats", this);
|
|
},
|
|
receiveMessage(message) {
|
|
switch (message.name) {
|
|
case "PageMetadata:GetPageData": {
|
|
let target = message.objects.target;
|
|
let result = PageMetadata.getData(content.document, target);
|
|
sendAsyncMessage("PageMetadata:PageDataResult", result);
|
|
break;
|
|
}
|
|
case "PageMetadata:GetMicroformats": {
|
|
let target = message.objects.target;
|
|
let result = PageMetadata.getMicroformats(content.document, target);
|
|
sendAsyncMessage("PageMetadata:MicroformatsResult", result);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
PageMetadataMessenger.init();
|
|
|
|
addMessageListener("ContextMenu:SaveVideoFrameAsImage", (message) => {
|
|
let video = message.objects.target;
|
|
let canvas = content.document.createElementNS("http://www.w3.org/1999/xhtml", "canvas");
|
|
canvas.width = video.videoWidth;
|
|
canvas.height = video.videoHeight;
|
|
|
|
let ctxDraw = canvas.getContext("2d");
|
|
ctxDraw.drawImage(video, 0, 0);
|
|
sendAsyncMessage("ContextMenu:SaveVideoFrameAsImage:Result", {
|
|
dataURL: canvas.toDataURL("image/jpeg", ""),
|
|
});
|
|
});
|
|
|
|
addMessageListener("ContextMenu:MediaCommand", (message) => {
|
|
E10SUtils.wrapHandlingUserInput(
|
|
content, message.data.handlingUserInput,
|
|
() => {
|
|
let media = message.objects.element;
|
|
switch (message.data.command) {
|
|
case "play":
|
|
media.play();
|
|
break;
|
|
case "pause":
|
|
media.pause();
|
|
break;
|
|
case "loop":
|
|
media.loop = !media.loop;
|
|
break;
|
|
case "mute":
|
|
media.muted = true;
|
|
break;
|
|
case "unmute":
|
|
media.muted = false;
|
|
break;
|
|
case "playbackRate":
|
|
media.playbackRate = message.data.data;
|
|
break;
|
|
case "hidecontrols":
|
|
media.removeAttribute("controls");
|
|
break;
|
|
case "showcontrols":
|
|
media.setAttribute("controls", "true");
|
|
break;
|
|
case "fullscreen":
|
|
if (content.document.fullscreenEnabled)
|
|
media.requestFullscreen();
|
|
break;
|
|
}
|
|
});
|
|
});
|
|
|
|
addMessageListener("ContextMenu:Canvas:ToBlobURL", (message) => {
|
|
message.objects.target.toBlob((blob) => {
|
|
let blobURL = URL.createObjectURL(blob);
|
|
sendAsyncMessage("ContextMenu:Canvas:ToBlobURL:Result", { blobURL });
|
|
});
|
|
});
|
|
|
|
addMessageListener("ContextMenu:ReloadFrame", (message) => {
|
|
message.objects.target.ownerDocument.location.reload();
|
|
});
|
|
|
|
addMessageListener("ContextMenu:ReloadImage", (message) => {
|
|
let image = message.objects.target;
|
|
if (image instanceof Ci.nsIImageLoadingContent)
|
|
image.forceReload();
|
|
});
|
|
|
|
addMessageListener("ContextMenu:BookmarkFrame", (message) => {
|
|
let frame = message.objects.target.ownerDocument;
|
|
sendAsyncMessage("ContextMenu:BookmarkFrame:Result",
|
|
{ title: frame.title,
|
|
description: PlacesUIUtils.getDescriptionFromDocument(frame) });
|
|
});
|
|
|
|
addMessageListener("ContextMenu:SearchFieldBookmarkData", (message) => {
|
|
let node = message.objects.target;
|
|
|
|
let charset = node.ownerDocument.characterSet;
|
|
|
|
let formBaseURI = BrowserUtils.makeURI(node.form.baseURI,
|
|
charset);
|
|
|
|
let formURI = BrowserUtils.makeURI(node.form.getAttribute("action"),
|
|
charset,
|
|
formBaseURI);
|
|
|
|
let spec = formURI.spec;
|
|
|
|
let isURLEncoded =
|
|
(node.form.method.toUpperCase() == "POST"
|
|
&& (node.form.enctype == "application/x-www-form-urlencoded" ||
|
|
node.form.enctype == ""));
|
|
|
|
let title = node.ownerDocument.title;
|
|
let description = PlacesUIUtils.getDescriptionFromDocument(node.ownerDocument);
|
|
|
|
let formData = [];
|
|
|
|
function escapeNameValuePair(aName, aValue, aIsFormUrlEncoded) {
|
|
if (aIsFormUrlEncoded) {
|
|
return escape(aName + "=" + aValue);
|
|
}
|
|
return escape(aName) + "=" + escape(aValue);
|
|
}
|
|
|
|
for (let el of node.form.elements) {
|
|
if (!el.type) // happens with fieldsets
|
|
continue;
|
|
|
|
if (el == node) {
|
|
formData.push((isURLEncoded) ? escapeNameValuePair(el.name, "%s", true) :
|
|
// Don't escape "%s", just append
|
|
escapeNameValuePair(el.name, "", false) + "%s");
|
|
continue;
|
|
}
|
|
|
|
let type = el.type.toLowerCase();
|
|
|
|
if (((el instanceof content.HTMLInputElement && el.mozIsTextField(true)) ||
|
|
type == "hidden" || type == "textarea") ||
|
|
((type == "checkbox" || type == "radio") && el.checked)) {
|
|
formData.push(escapeNameValuePair(el.name, el.value, isURLEncoded));
|
|
} else if (el instanceof content.HTMLSelectElement && el.selectedIndex >= 0) {
|
|
for (let j=0; j < el.options.length; j++) {
|
|
if (el.options[j].selected)
|
|
formData.push(escapeNameValuePair(el.name, el.options[j].value,
|
|
isURLEncoded));
|
|
}
|
|
}
|
|
}
|
|
|
|
let postData;
|
|
|
|
if (isURLEncoded)
|
|
postData = formData.join("&");
|
|
else {
|
|
let separator = spec.includes("?") ? "&" : "?";
|
|
spec += separator + formData.join("&");
|
|
}
|
|
|
|
sendAsyncMessage("ContextMenu:SearchFieldBookmarkData:Result",
|
|
{ spec, title, description, postData, charset });
|
|
});
|
|
|
|
addMessageListener("Bookmarks:GetPageDetails", (message) => {
|
|
let doc = content.document;
|
|
let isErrorPage = /^about:(neterror|certerror|blocked)/.test(doc.documentURI);
|
|
sendAsyncMessage("Bookmarks:GetPageDetails:Result",
|
|
{ isErrorPage: isErrorPage,
|
|
description: PlacesUIUtils.getDescriptionFromDocument(doc) });
|
|
});
|
|
|
|
var LightWeightThemeWebInstallListener = {
|
|
_previewWindow: null,
|
|
|
|
init: function() {
|
|
addEventListener("InstallBrowserTheme", this, false, true);
|
|
addEventListener("PreviewBrowserTheme", this, false, true);
|
|
addEventListener("ResetBrowserThemePreview", this, false, true);
|
|
},
|
|
|
|
handleEvent: function (event) {
|
|
switch (event.type) {
|
|
case "InstallBrowserTheme": {
|
|
sendAsyncMessage("LightWeightThemeWebInstaller:Install", {
|
|
baseURI: event.target.baseURI,
|
|
principal: event.target.nodePrincipal,
|
|
themeData: event.target.getAttribute("data-browsertheme"),
|
|
});
|
|
break;
|
|
}
|
|
case "PreviewBrowserTheme": {
|
|
sendAsyncMessage("LightWeightThemeWebInstaller:Preview", {
|
|
baseURI: event.target.baseURI,
|
|
principal: event.target.nodePrincipal,
|
|
themeData: event.target.getAttribute("data-browsertheme"),
|
|
});
|
|
this._previewWindow = event.target.ownerGlobal;
|
|
this._previewWindow.addEventListener("pagehide", this, true);
|
|
break;
|
|
}
|
|
case "pagehide": {
|
|
sendAsyncMessage("LightWeightThemeWebInstaller:ResetPreview");
|
|
this._resetPreviewWindow();
|
|
break;
|
|
}
|
|
case "ResetBrowserThemePreview": {
|
|
if (this._previewWindow) {
|
|
sendAsyncMessage("LightWeightThemeWebInstaller:ResetPreview",
|
|
{principal: event.target.nodePrincipal});
|
|
this._resetPreviewWindow();
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
},
|
|
|
|
_resetPreviewWindow: function () {
|
|
this._previewWindow.removeEventListener("pagehide", this, true);
|
|
this._previewWindow = null;
|
|
}
|
|
};
|
|
|
|
LightWeightThemeWebInstallListener.init();
|
|
|
|
function disableSetDesktopBackground(aTarget) {
|
|
// Disable the Set as Desktop Background menu item if we're still trying
|
|
// to load the image or the load failed.
|
|
if (!(aTarget instanceof Ci.nsIImageLoadingContent))
|
|
return true;
|
|
|
|
if (("complete" in aTarget) && !aTarget.complete)
|
|
return true;
|
|
|
|
if (aTarget.currentURI.schemeIs("javascript"))
|
|
return true;
|
|
|
|
let request = aTarget.QueryInterface(Ci.nsIImageLoadingContent)
|
|
.getRequest(Ci.nsIImageLoadingContent.CURRENT_REQUEST);
|
|
if (!request)
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
addMessageListener("ContextMenu:SetAsDesktopBackground", (message) => {
|
|
let target = message.objects.target;
|
|
|
|
// Paranoia: check disableSetDesktopBackground again, in case the
|
|
// image changed since the context menu was initiated.
|
|
let disable = disableSetDesktopBackground(target);
|
|
|
|
if (!disable) {
|
|
try {
|
|
BrowserUtils.urlSecurityCheck(target.currentURI.spec, target.ownerDocument.nodePrincipal);
|
|
let canvas = content.document.createElement("canvas");
|
|
canvas.width = target.naturalWidth;
|
|
canvas.height = target.naturalHeight;
|
|
let ctx = canvas.getContext("2d");
|
|
ctx.drawImage(target, 0, 0);
|
|
let dataUrl = canvas.toDataURL();
|
|
sendAsyncMessage("ContextMenu:SetAsDesktopBackground:Result",
|
|
{ dataUrl });
|
|
}
|
|
catch (e) {
|
|
Cu.reportError(e);
|
|
disable = true;
|
|
}
|
|
}
|
|
|
|
if (disable)
|
|
sendAsyncMessage("ContextMenu:SetAsDesktopBackground:Result", { disable });
|
|
});
|
|
|
|
var PageInfoListener = {
|
|
|
|
init: function() {
|
|
addMessageListener("PageInfo:getData", this);
|
|
},
|
|
|
|
receiveMessage: function(message) {
|
|
let strings = message.data.strings;
|
|
let window;
|
|
let document;
|
|
|
|
let frameOuterWindowID = message.data.frameOuterWindowID;
|
|
|
|
// If inside frame then get the frame's window and document.
|
|
if (frameOuterWindowID) {
|
|
window = Services.wm.getOuterWindowWithId(frameOuterWindowID);
|
|
document = window.document;
|
|
}
|
|
else {
|
|
window = content.window;
|
|
document = content.document;
|
|
}
|
|
|
|
let imageElement = message.objects.imageElement;
|
|
|
|
let pageInfoData = {metaViewRows: this.getMetaInfo(document),
|
|
docInfo: this.getDocumentInfo(document),
|
|
feeds: this.getFeedsInfo(document, strings),
|
|
windowInfo: this.getWindowInfo(window),
|
|
imageInfo: this.getImageInfo(imageElement)};
|
|
|
|
sendAsyncMessage("PageInfo:data", pageInfoData);
|
|
|
|
// Separate step so page info dialog isn't blank while waiting for this to finish.
|
|
this.getMediaInfo(document, window, strings);
|
|
},
|
|
|
|
getImageInfo: function(imageElement) {
|
|
let imageInfo = null;
|
|
if (imageElement) {
|
|
imageInfo = {
|
|
currentSrc: imageElement.currentSrc,
|
|
width: imageElement.width,
|
|
height: imageElement.height,
|
|
imageText: imageElement.title || imageElement.alt
|
|
};
|
|
}
|
|
return imageInfo;
|
|
},
|
|
|
|
getMetaInfo: function(document) {
|
|
let metaViewRows = [];
|
|
|
|
// Get the meta tags from the page.
|
|
let metaNodes = document.getElementsByTagName("meta");
|
|
|
|
for (let metaNode of metaNodes) {
|
|
metaViewRows.push([metaNode.name || metaNode.httpEquiv || metaNode.getAttribute("property"),
|
|
metaNode.content]);
|
|
}
|
|
|
|
return metaViewRows;
|
|
},
|
|
|
|
getWindowInfo: function(window) {
|
|
let windowInfo = {};
|
|
windowInfo.isTopWindow = window == window.top;
|
|
|
|
let hostName = null;
|
|
try {
|
|
hostName = window.location.host;
|
|
}
|
|
catch (exception) { }
|
|
|
|
windowInfo.hostName = hostName;
|
|
return windowInfo;
|
|
},
|
|
|
|
getDocumentInfo: function(document) {
|
|
let docInfo = {};
|
|
docInfo.title = document.title;
|
|
docInfo.location = document.location.toString();
|
|
docInfo.referrer = document.referrer;
|
|
docInfo.compatMode = document.compatMode;
|
|
docInfo.contentType = document.contentType;
|
|
docInfo.characterSet = document.characterSet;
|
|
docInfo.lastModified = document.lastModified;
|
|
docInfo.principal = document.nodePrincipal;
|
|
|
|
let documentURIObject = {};
|
|
documentURIObject.spec = document.documentURIObject.spec;
|
|
documentURIObject.originCharset = document.documentURIObject.originCharset;
|
|
docInfo.documentURIObject = documentURIObject;
|
|
|
|
docInfo.isContentWindowPrivate = PrivateBrowsingUtils.isContentWindowPrivate(content);
|
|
|
|
return docInfo;
|
|
},
|
|
|
|
getFeedsInfo: function(document, strings) {
|
|
let feeds = [];
|
|
// Get the feeds from the page.
|
|
let linkNodes = document.getElementsByTagName("link");
|
|
let length = linkNodes.length;
|
|
for (let i = 0; i < length; i++) {
|
|
let link = linkNodes[i];
|
|
if (!link.href) {
|
|
continue;
|
|
}
|
|
let rel = link.rel && link.rel.toLowerCase();
|
|
let rels = {};
|
|
|
|
if (rel) {
|
|
for (let relVal of rel.split(/\s+/)) {
|
|
rels[relVal] = true;
|
|
}
|
|
}
|
|
|
|
if (rels.feed || (link.type && rels.alternate && !rels.stylesheet)) {
|
|
let type = Feeds.isValidFeed(link, document.nodePrincipal, "feed" in rels);
|
|
if (type) {
|
|
type = strings[type] || strings["application/rss+xml"];
|
|
feeds.push([link.title, type, link.href]);
|
|
}
|
|
}
|
|
}
|
|
return feeds;
|
|
},
|
|
|
|
// Only called once to get the media tab's media elements from the content page.
|
|
getMediaInfo: function(document, window, strings)
|
|
{
|
|
let frameList = this.goThroughFrames(document, window);
|
|
Task.spawn(() => this.processFrames(document, frameList, strings));
|
|
},
|
|
|
|
goThroughFrames: function(document, window)
|
|
{
|
|
let frameList = [document];
|
|
if (window && window.frames.length > 0) {
|
|
let num = window.frames.length;
|
|
for (let i = 0; i < num; i++) {
|
|
// Recurse through the frames.
|
|
frameList.concat(this.goThroughFrames(window.frames[i].document,
|
|
window.frames[i]));
|
|
}
|
|
}
|
|
return frameList;
|
|
},
|
|
|
|
processFrames: function*(document, frameList, strings)
|
|
{
|
|
let nodeCount = 0;
|
|
for (let doc of frameList) {
|
|
let iterator = doc.createTreeWalker(doc, content.NodeFilter.SHOW_ELEMENT);
|
|
|
|
// Goes through all the elements on the doc. imageViewRows takes only the media elements.
|
|
while (iterator.nextNode()) {
|
|
let mediaItems = this.getMediaItems(document, strings, iterator.currentNode);
|
|
|
|
if (mediaItems.length) {
|
|
sendAsyncMessage("PageInfo:mediaData",
|
|
{mediaItems, isComplete: false});
|
|
}
|
|
|
|
if (++nodeCount % 500 == 0) {
|
|
// setTimeout every 500 elements so we don't keep blocking the content process.
|
|
yield new Promise(resolve => setTimeout(resolve, 10));
|
|
}
|
|
}
|
|
}
|
|
// Send that page info media fetching has finished.
|
|
sendAsyncMessage("PageInfo:mediaData", {isComplete: true});
|
|
},
|
|
|
|
getMediaItems: function(document, strings, elem)
|
|
{
|
|
// Check for images defined in CSS (e.g. background, borders)
|
|
let computedStyle = elem.ownerGlobal.getComputedStyle(elem);
|
|
// A node can have multiple media items associated with it - for example,
|
|
// multiple background images.
|
|
let mediaItems = [];
|
|
|
|
let addImage = (url, type, alt, elem, isBg) => {
|
|
let element = this.serializeElementInfo(document, url, type, alt, elem, isBg);
|
|
mediaItems.push([url, type, alt, element, isBg]);
|
|
};
|
|
|
|
if (computedStyle) {
|
|
let addImgFunc = (label, val) => {
|
|
if (val.primitiveType == content.CSSPrimitiveValue.CSS_URI) {
|
|
addImage(val.getStringValue(), label, strings.notSet, elem, true);
|
|
}
|
|
else if (val.primitiveType == content.CSSPrimitiveValue.CSS_STRING) {
|
|
// This is for -moz-image-rect.
|
|
// TODO: Reimplement once bug 714757 is fixed.
|
|
let strVal = val.getStringValue();
|
|
if (strVal.search(/^.*url\(\"?/) > -1) {
|
|
let url = strVal.replace(/^.*url\(\"?/, "").replace(/\"?\).*$/, "");
|
|
addImage(url, label, strings.notSet, elem, true);
|
|
}
|
|
}
|
|
else if (val.cssValueType == content.CSSValue.CSS_VALUE_LIST) {
|
|
// Recursively resolve multiple nested CSS value lists.
|
|
for (let i = 0; i < val.length; i++) {
|
|
addImgFunc(label, val.item(i));
|
|
}
|
|
}
|
|
};
|
|
|
|
addImgFunc(strings.mediaBGImg, computedStyle.getPropertyCSSValue("background-image"));
|
|
addImgFunc(strings.mediaBorderImg, computedStyle.getPropertyCSSValue("border-image-source"));
|
|
addImgFunc(strings.mediaListImg, computedStyle.getPropertyCSSValue("list-style-image"));
|
|
addImgFunc(strings.mediaCursor, computedStyle.getPropertyCSSValue("cursor"));
|
|
}
|
|
|
|
// One swi^H^H^Hif-else to rule them all.
|
|
if (elem instanceof content.HTMLImageElement) {
|
|
addImage(elem.src, strings.mediaImg,
|
|
(elem.hasAttribute("alt")) ? elem.alt : strings.notSet, elem, false);
|
|
}
|
|
else if (elem instanceof content.SVGImageElement) {
|
|
try {
|
|
// Note: makeURLAbsolute will throw if either the baseURI is not a valid URI
|
|
// or the URI formed from the baseURI and the URL is not a valid URI.
|
|
if (elem.href.baseVal) {
|
|
let href = Services.io.newURI(elem.href.baseVal, null, Services.io.newURI(elem.baseURI)).spec;
|
|
addImage(href, strings.mediaImg, "", elem, false);
|
|
}
|
|
} catch (e) { }
|
|
}
|
|
else if (elem instanceof content.HTMLVideoElement) {
|
|
addImage(elem.currentSrc, strings.mediaVideo, "", elem, false);
|
|
}
|
|
else if (elem instanceof content.HTMLAudioElement) {
|
|
addImage(elem.currentSrc, strings.mediaAudio, "", elem, false);
|
|
}
|
|
else if (elem instanceof content.HTMLLinkElement) {
|
|
if (elem.rel && /\bicon\b/i.test(elem.rel)) {
|
|
addImage(elem.href, strings.mediaLink, "", elem, false);
|
|
}
|
|
}
|
|
else if (elem instanceof content.HTMLInputElement || elem instanceof content.HTMLButtonElement) {
|
|
if (elem.type.toLowerCase() == "image") {
|
|
addImage(elem.src, strings.mediaInput,
|
|
(elem.hasAttribute("alt")) ? elem.alt : strings.notSet, elem, false);
|
|
}
|
|
}
|
|
else if (elem instanceof content.HTMLObjectElement) {
|
|
addImage(elem.data, strings.mediaObject, this.getValueText(elem), elem, false);
|
|
}
|
|
else if (elem instanceof content.HTMLEmbedElement) {
|
|
addImage(elem.src, strings.mediaEmbed, "", elem, false);
|
|
}
|
|
|
|
return mediaItems;
|
|
},
|
|
|
|
/**
|
|
* Set up a JSON element object with all the instanceOf and other infomation that
|
|
* makePreview in pageInfo.js uses to figure out how to display the preview.
|
|
*/
|
|
|
|
serializeElementInfo: function(document, url, type, alt, item, isBG)
|
|
{
|
|
let result = {};
|
|
|
|
let imageText;
|
|
if (!isBG &&
|
|
!(item instanceof content.SVGImageElement) &&
|
|
!(document instanceof content.ImageDocument)) {
|
|
imageText = item.title || item.alt;
|
|
|
|
if (!imageText && !(item instanceof content.HTMLImageElement)) {
|
|
imageText = this.getValueText(item);
|
|
}
|
|
}
|
|
|
|
result.imageText = imageText;
|
|
result.longDesc = item.longDesc;
|
|
result.numFrames = 1;
|
|
|
|
if (item instanceof content.HTMLObjectElement ||
|
|
item instanceof content.HTMLEmbedElement ||
|
|
item instanceof content.HTMLLinkElement) {
|
|
result.mimeType = item.type;
|
|
}
|
|
|
|
if (!result.mimeType && !isBG && item instanceof Ci.nsIImageLoadingContent) {
|
|
// Interface for image loading content.
|
|
let imageRequest = item.getRequest(Ci.nsIImageLoadingContent.CURRENT_REQUEST);
|
|
if (imageRequest) {
|
|
result.mimeType = imageRequest.mimeType;
|
|
let image = !(imageRequest.imageStatus & imageRequest.STATUS_ERROR) && imageRequest.image;
|
|
if (image) {
|
|
result.numFrames = image.numFrames;
|
|
}
|
|
}
|
|
}
|
|
|
|
// If we have a data url, get the MIME type from the url.
|
|
if (!result.mimeType && url.startsWith("data:")) {
|
|
let dataMimeType = /^data:(image\/[^;,]+)/i.exec(url);
|
|
if (dataMimeType)
|
|
result.mimeType = dataMimeType[1].toLowerCase();
|
|
}
|
|
|
|
result.HTMLLinkElement = item instanceof content.HTMLLinkElement;
|
|
result.HTMLInputElement = item instanceof content.HTMLInputElement;
|
|
result.HTMLImageElement = item instanceof content.HTMLImageElement;
|
|
result.HTMLObjectElement = item instanceof content.HTMLObjectElement;
|
|
result.SVGImageElement = item instanceof content.SVGImageElement;
|
|
result.HTMLVideoElement = item instanceof content.HTMLVideoElement;
|
|
result.HTMLAudioElement = item instanceof content.HTMLAudioElement;
|
|
|
|
if (isBG) {
|
|
// Items that are showing this image as a background
|
|
// image might not necessarily have a width or height,
|
|
// so we'll dynamically generate an image and send up the
|
|
// natural dimensions.
|
|
let img = content.document.createElement("img");
|
|
img.src = url;
|
|
result.naturalWidth = img.naturalWidth;
|
|
result.naturalHeight = img.naturalHeight;
|
|
} else {
|
|
// Otherwise, we can use the current width and height
|
|
// of the image.
|
|
result.width = item.width;
|
|
result.height = item.height;
|
|
}
|
|
|
|
if (item instanceof content.SVGImageElement) {
|
|
result.SVGImageElementWidth = item.width.baseVal.value;
|
|
result.SVGImageElementHeight = item.height.baseVal.value;
|
|
}
|
|
|
|
result.baseURI = item.baseURI;
|
|
|
|
return result;
|
|
},
|
|
|
|
// Other Misc Stuff
|
|
// Modified from the Links Panel v2.3, http://segment7.net/mozilla/links/links.html
|
|
// parse a node to extract the contents of the node
|
|
getValueText: function(node)
|
|
{
|
|
|
|
let valueText = "";
|
|
|
|
// Form input elements don't generally contain information that is useful to our callers, so return nothing.
|
|
if (node instanceof content.HTMLInputElement ||
|
|
node instanceof content.HTMLSelectElement ||
|
|
node instanceof content.HTMLTextAreaElement) {
|
|
return valueText;
|
|
}
|
|
|
|
// Otherwise recurse for each child.
|
|
let length = node.childNodes.length;
|
|
|
|
for (let i = 0; i < length; i++) {
|
|
let childNode = node.childNodes[i];
|
|
let nodeType = childNode.nodeType;
|
|
|
|
// Text nodes are where the goods are.
|
|
if (nodeType == content.Node.TEXT_NODE) {
|
|
valueText += " " + childNode.nodeValue;
|
|
}
|
|
// And elements can have more text inside them.
|
|
else if (nodeType == content.Node.ELEMENT_NODE) {
|
|
// Images are special, we want to capture the alt text as if the image weren't there.
|
|
if (childNode instanceof content.HTMLImageElement) {
|
|
valueText += " " + this.getAltText(childNode);
|
|
}
|
|
else {
|
|
valueText += " " + this.getValueText(childNode);
|
|
}
|
|
}
|
|
}
|
|
|
|
return this.stripWS(valueText);
|
|
},
|
|
|
|
// Copied from the Links Panel v2.3, http://segment7.net/mozilla/links/links.html.
|
|
// Traverse the tree in search of an img or area element and grab its alt tag.
|
|
getAltText: function(node)
|
|
{
|
|
let altText = "";
|
|
|
|
if (node.alt) {
|
|
return node.alt;
|
|
}
|
|
let length = node.childNodes.length;
|
|
for (let i = 0; i < length; i++) {
|
|
if ((altText = this.getAltText(node.childNodes[i]) != undefined)) { // stupid js warning...
|
|
return altText;
|
|
}
|
|
}
|
|
return "";
|
|
},
|
|
|
|
// Copied from the Links Panel v2.3, http://segment7.net/mozilla/links/links.html.
|
|
// Strip leading and trailing whitespace, and replace multiple consecutive whitespace characters with a single space.
|
|
stripWS: function(text)
|
|
{
|
|
let middleRE = /\s+/g;
|
|
let endRE = /(^\s+)|(\s+$)/g;
|
|
|
|
text = text.replace(middleRE, " ");
|
|
return text.replace(endRE, "");
|
|
}
|
|
};
|
|
PageInfoListener.init();
|
|
|
|
let OfflineApps = {
|
|
_docId: 0,
|
|
_docIdMap: new Map(),
|
|
|
|
_docManifestSet: new Set(),
|
|
|
|
_observerAdded: false,
|
|
registerWindow(aWindow) {
|
|
if (!this._observerAdded) {
|
|
this._observerAdded = true;
|
|
Services.obs.addObserver(this, "offline-cache-update-completed", true);
|
|
}
|
|
let manifestURI = this._getManifestURI(aWindow);
|
|
this._docManifestSet.add(manifestURI.spec);
|
|
},
|
|
|
|
handleEvent(event) {
|
|
if (event.type == "MozApplicationManifest") {
|
|
this.offlineAppRequested(event.originalTarget.defaultView);
|
|
}
|
|
},
|
|
|
|
_getManifestURI(aWindow) {
|
|
if (!aWindow.document.documentElement)
|
|
return null;
|
|
|
|
var attr = aWindow.document.documentElement.getAttribute("manifest");
|
|
if (!attr)
|
|
return null;
|
|
|
|
try {
|
|
var contentURI = BrowserUtils.makeURI(aWindow.location.href, null, null);
|
|
return BrowserUtils.makeURI(attr, aWindow.document.characterSet, contentURI);
|
|
} catch (e) {
|
|
return null;
|
|
}
|
|
},
|
|
|
|
offlineAppRequested(aContentWindow) {
|
|
this.registerWindow(aContentWindow);
|
|
if (!Services.prefs.getBoolPref("browser.offline-apps.notify")) {
|
|
return;
|
|
}
|
|
|
|
let currentURI = aContentWindow.document.documentURIObject;
|
|
// don't bother showing UI if the user has already made a decision
|
|
if (Services.perms.testExactPermission(currentURI, "offline-app") != Services.perms.UNKNOWN_ACTION)
|
|
return;
|
|
|
|
try {
|
|
if (Services.prefs.getBoolPref("offline-apps.allow_by_default")) {
|
|
// all pages can use offline capabilities, no need to ask the user
|
|
return;
|
|
}
|
|
} catch (e) {
|
|
// this pref isn't set by default, ignore failures
|
|
}
|
|
let docId = ++this._docId;
|
|
this._docIdMap.set(docId, Cu.getWeakReference(aContentWindow.document));
|
|
sendAsyncMessage("OfflineApps:RequestPermission", {
|
|
uri: currentURI.spec,
|
|
docId,
|
|
});
|
|
},
|
|
|
|
_startFetching(aDocument) {
|
|
if (!aDocument.documentElement)
|
|
return;
|
|
|
|
let manifestURI = this._getManifestURI(aDocument.defaultView);
|
|
if (!manifestURI)
|
|
return;
|
|
|
|
var updateService = Cc["@mozilla.org/offlinecacheupdate-service;1"].
|
|
getService(Ci.nsIOfflineCacheUpdateService);
|
|
updateService.scheduleUpdate(manifestURI, aDocument.documentURIObject,
|
|
aDocument.nodePrincipal, aDocument.defaultView);
|
|
},
|
|
|
|
receiveMessage(aMessage) {
|
|
if (aMessage.name == "OfflineApps:StartFetching") {
|
|
let doc = this._docIdMap.get(aMessage.data.docId);
|
|
doc = doc && doc.get();
|
|
if (doc) {
|
|
this._startFetching(doc);
|
|
}
|
|
this._docIdMap.delete(aMessage.data.docId);
|
|
}
|
|
},
|
|
|
|
observe(aSubject, aTopic, aState) {
|
|
if (aTopic == "offline-cache-update-completed") {
|
|
let cacheUpdate = aSubject.QueryInterface(Ci.nsIOfflineCacheUpdate);
|
|
let uri = cacheUpdate.manifestURI;
|
|
if (uri && this._docManifestSet.has(uri.spec)) {
|
|
sendAsyncMessage("OfflineApps:CheckUsage", {uri: uri.spec});
|
|
}
|
|
}
|
|
},
|
|
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
|
|
Ci.nsISupportsWeakReference]),
|
|
};
|
|
|
|
addEventListener("MozApplicationManifest", OfflineApps, false);
|
|
addMessageListener("OfflineApps:StartFetching", OfflineApps);
|