зеркало из https://github.com/mozilla/gecko-dev.git
107 строки
2.9 KiB
JavaScript
107 строки
2.9 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* eslint-env mozilla/frame-script */
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var {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
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Cu.import("resource://gre/modules/Services.jsm");
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const PREF_TEST_WHITELIST = "browser.uitour.testingOrigins";
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const UITOUR_PERMISSION = "uitour";
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var UITourListener = {
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handleEvent(event) {
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if (!Services.prefs.getBoolPref("browser.uitour.enabled")) {
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return;
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}
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if (!this.ensureTrustedOrigin()) {
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return;
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}
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addMessageListener("UITour:SendPageCallback", this);
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addMessageListener("UITour:SendPageNotification", this);
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sendAsyncMessage("UITour:onPageEvent", {
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detail: event.detail,
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type: event.type,
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pageVisibilityState: content.document.visibilityState,
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});
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},
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isTestingOrigin(aURI) {
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if (Services.prefs.getPrefType(PREF_TEST_WHITELIST) != Services.prefs.PREF_STRING) {
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return false;
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}
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// Add any testing origins (comma-seperated) to the whitelist for the session.
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for (let origin of Services.prefs.getCharPref(PREF_TEST_WHITELIST).split(",")) {
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try {
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let testingURI = Services.io.newURI(origin);
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if (aURI.prePath == testingURI.prePath) {
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return true;
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}
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} catch (ex) {
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Cu.reportError(ex);
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}
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}
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return false;
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},
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// This function is copied from UITour.jsm.
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isSafeScheme(aURI) {
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let allowedSchemes = new Set(["https", "about"]);
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if (!Services.prefs.getBoolPref("browser.uitour.requireSecure"))
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allowedSchemes.add("http");
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if (!allowedSchemes.has(aURI.scheme))
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return false;
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return true;
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},
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ensureTrustedOrigin() {
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if (content.top != content)
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return false;
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let uri = content.document.documentURIObject;
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if (uri.schemeIs("chrome"))
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return true;
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if (!this.isSafeScheme(uri))
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return false;
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let permission = Services.perms.testPermission(uri, UITOUR_PERMISSION);
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if (permission == Services.perms.ALLOW_ACTION)
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return true;
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return this.isTestingOrigin(uri);
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},
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receiveMessage(aMessage) {
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switch (aMessage.name) {
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case "UITour:SendPageCallback":
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this.sendPageEvent("Response", aMessage.data);
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break;
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case "UITour:SendPageNotification":
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this.sendPageEvent("Notification", aMessage.data);
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break;
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}
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},
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sendPageEvent(type, detail) {
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if (!this.ensureTrustedOrigin()) {
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return;
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}
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let doc = content.document;
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let eventName = "mozUITour" + type;
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let event = new doc.defaultView.CustomEvent(eventName, {
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bubbles: true,
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detail: Cu.cloneInto(detail, doc.defaultView)
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});
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doc.dispatchEvent(event);
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}
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};
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addEventListener("mozUITour", UITourListener, false, true);
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