зеркало из https://github.com/mozilla/gecko-dev.git
1386 строки
46 KiB
JavaScript
1386 строки
46 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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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var EXPORTED_SYMBOLS = ["WebRTCParent"];
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const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
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const { XPCOMUtils } = ChromeUtils.import(
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"resource://gre/modules/XPCOMUtils.jsm"
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);
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ChromeUtils.defineModuleGetter(
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this,
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"PluralForm",
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"resource://gre/modules/PluralForm.jsm"
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);
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ChromeUtils.defineModuleGetter(
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this,
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"PrivateBrowsingUtils",
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"resource://gre/modules/PrivateBrowsingUtils.jsm"
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);
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ChromeUtils.defineModuleGetter(
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this,
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"SitePermissions",
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"resource:///modules/SitePermissions.jsm"
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);
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ChromeUtils.defineModuleGetter(
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this,
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"webrtcUI",
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"resource:///modules/webrtcUI.jsm"
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);
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XPCOMUtils.defineLazyGetter(this, "gBrandBundle", function() {
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return Services.strings.createBundle(
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"chrome://branding/locale/brand.properties"
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);
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});
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XPCOMUtils.defineLazyServiceGetter(
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this,
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"OSPermissions",
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"@mozilla.org/ospermissionrequest;1",
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"nsIOSPermissionRequest"
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);
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// Keep in sync with defines at base_capturer_pipewire.cc
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// With PipeWire we can't select which system resource is shared so
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// we don't create a window/screen list. Instead we place these constants
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// as window name/id so frontend code can identify PipeWire backend
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// and does not try to create screen/window preview.
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const PIPEWIRE_PORTAL_NAME = "####_PIPEWIRE_PORTAL_####";
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const PIPEWIRE_ID = 0xaffffff;
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class WebRTCParent extends JSWindowActorParent {
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didDestroy() {
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// Media stream tracks end on unload, so call stopRecording() on them early
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// *before* we go away, to ensure we're working with the right principal.
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this.stopRecording(this.manager.outerWindowId);
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webrtcUI.forgetStreamsFromBrowserContext(this.browsingContext);
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// Must clear activePerms here to prevent them from being read by laggard
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// stopRecording() calls, which due to IPC, may come in *after* navigation.
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// This is to prevent granting temporary grace periods to the wrong page.
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webrtcUI.activePerms.delete(this.manager.outerWindowId);
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}
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getBrowser() {
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return this.browsingContext.top.embedderElement;
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}
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receiveMessage(aMessage) {
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switch (aMessage.name) {
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case "rtcpeer:Request": {
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let params = Object.freeze(
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Object.assign(
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{
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origin: this.manager.documentPrincipal.origin,
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},
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aMessage.data
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)
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);
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let blockers = Array.from(webrtcUI.peerConnectionBlockers);
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(async function() {
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for (let blocker of blockers) {
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try {
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let result = await blocker(params);
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if (result == "deny") {
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return false;
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}
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} catch (err) {
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Cu.reportError(`error in PeerConnection blocker: ${err.message}`);
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}
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}
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return true;
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})().then(decision => {
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let message;
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if (decision) {
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webrtcUI.emitter.emit("peer-request-allowed", params);
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message = "rtcpeer:Allow";
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} else {
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webrtcUI.emitter.emit("peer-request-blocked", params);
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message = "rtcpeer:Deny";
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}
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this.sendAsyncMessage(message, {
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callID: params.callID,
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windowID: params.windowID,
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});
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});
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break;
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}
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case "rtcpeer:CancelRequest": {
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let params = Object.freeze({
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origin: this.manager.documentPrincipal.origin,
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callID: aMessage.data,
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});
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webrtcUI.emitter.emit("peer-request-cancel", params);
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break;
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}
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case "webrtc:Request": {
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let data = aMessage.data;
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// Record third party origins for telemetry.
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let isThirdPartyOrigin =
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this.manager.documentPrincipal.origin !=
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this.manager.topWindowContext.documentPrincipal.origin;
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data.isThirdPartyOrigin = isThirdPartyOrigin;
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data.origin = data.shouldDelegatePermission
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? this.manager.topWindowContext.documentPrincipal.origin
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: this.manager.documentPrincipal.origin;
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let browser = this.getBrowser();
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if (browser.fxrPermissionPrompt) {
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// For Firefox Reality on Desktop, switch to a different mechanism to
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// prompt the user since fewer permissions are available and since many
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// UI dependencies are not available.
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browser.fxrPermissionPrompt(data);
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} else {
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prompt(this, this.getBrowser(), data);
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}
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break;
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}
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case "webrtc:StopRecording":
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this.stopRecording(
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aMessage.data.windowID,
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aMessage.data.mediaSource,
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aMessage.data.rawID
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);
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break;
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case "webrtc:CancelRequest": {
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let browser = this.getBrowser();
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// browser can be null when closing the window
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if (browser) {
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removePrompt(browser, aMessage.data);
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}
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break;
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}
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case "webrtc:UpdateIndicators": {
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let { data } = aMessage;
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data.documentURI = this.manager.documentURI?.spec;
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if (data.windowId) {
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if (!data.remove) {
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data.principal = this.manager.topWindowContext.documentPrincipal;
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}
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webrtcUI.streamAddedOrRemoved(this.browsingContext, data);
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}
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this.updateIndicators(data);
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break;
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}
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}
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}
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updateIndicators(aData) {
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let browsingContext = this.browsingContext;
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let state = webrtcUI.updateIndicators(browsingContext.top);
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let browser = this.getBrowser();
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if (!browser) {
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return;
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}
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state.browsingContext = browsingContext;
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state.windowId = aData.windowId;
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let tabbrowser = browser.ownerGlobal.gBrowser;
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if (tabbrowser) {
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tabbrowser.updateBrowserSharing(browser, {
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webRTC: state,
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});
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}
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}
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denyRequest(aRequest) {
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this.sendAsyncMessage("webrtc:Deny", {
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callID: aRequest.callID,
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windowID: aRequest.windowID,
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});
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}
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//
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// Deny the request because the browser does not have access to the
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// camera or microphone due to OS security restrictions. The user may
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// have granted camera/microphone access to the site, but not have
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// allowed the browser access in OS settings.
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//
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denyRequestNoPermission(aRequest) {
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this.sendAsyncMessage("webrtc:Deny", {
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callID: aRequest.callID,
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windowID: aRequest.windowID,
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noOSPermission: true,
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});
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}
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//
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// Check if we have permission to access the camera or screen-sharing and/or
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// microphone at the OS level. Triggers a request to access the device if access
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// is needed and the permission state has not yet been determined.
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//
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async checkOSPermission(camNeeded, micNeeded, scrNeeded) {
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// Don't trigger OS permission requests for fake devices. Fake devices don't
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// require OS permission and the dialogs are problematic in automated testing
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// (where fake devices are used) because they require user interaction.
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if (
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!scrNeeded &&
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Services.prefs.getBoolPref("media.navigator.streams.fake", false)
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) {
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return true;
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}
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let camStatus = {},
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micStatus = {};
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if (camNeeded || micNeeded) {
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OSPermissions.getMediaCapturePermissionState(camStatus, micStatus);
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}
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if (camNeeded) {
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let camPermission = camStatus.value;
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let camAccessible = await this.checkAndGetOSPermission(
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camPermission,
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OSPermissions.requestVideoCapturePermission
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);
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if (!camAccessible) {
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return false;
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}
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}
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if (micNeeded) {
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let micPermission = micStatus.value;
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let micAccessible = await this.checkAndGetOSPermission(
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micPermission,
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OSPermissions.requestAudioCapturePermission
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);
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if (!micAccessible) {
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return false;
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}
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}
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let scrStatus = {};
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if (scrNeeded) {
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OSPermissions.getScreenCapturePermissionState(scrStatus);
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if (scrStatus.value == OSPermissions.PERMISSION_STATE_DENIED) {
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OSPermissions.maybeRequestScreenCapturePermission();
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return false;
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}
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}
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return true;
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}
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//
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// Given a device's permission, return true if the device is accessible. If
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// the device's permission is not yet determined, request access to the device.
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// |requestPermissionFunc| must return a promise that resolves with true
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// if the device is accessible and false otherwise.
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//
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async checkAndGetOSPermission(devicePermission, requestPermissionFunc) {
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if (
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devicePermission == OSPermissions.PERMISSION_STATE_DENIED ||
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devicePermission == OSPermissions.PERMISSION_STATE_RESTRICTED
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) {
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return false;
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}
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if (devicePermission == OSPermissions.PERMISSION_STATE_NOTDETERMINED) {
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let deviceAllowed = await requestPermissionFunc();
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if (!deviceAllowed) {
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return false;
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}
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}
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return true;
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}
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stopRecording(aOuterWindowId, aMediaSource, aRawId) {
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for (let { browsingContext, state } of webrtcUI._streams) {
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if (browsingContext == this.browsingContext) {
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let { principal } = state;
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for (let { mediaSource, rawId } of state.devices) {
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if (aRawId && (aRawId != rawId || aMediaSource != mediaSource)) {
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continue;
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}
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// Deactivate this device (no aRawId means all devices).
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this.deactivateDevicePerm(
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aOuterWindowId,
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mediaSource,
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rawId,
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principal
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);
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}
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}
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}
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}
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/**
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* Add a device record to webrtcUI.activePerms, denoting a device as in use.
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* Important to call for permission grace periods to work correctly.
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*/
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activateDevicePerm(aOuterWindowId, aMediaSource, aId) {
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if (!webrtcUI.activePerms.has(this.manager.outerWindowId)) {
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webrtcUI.activePerms.set(this.manager.outerWindowId, new Set());
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}
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webrtcUI.activePerms
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.get(this.manager.outerWindowId)
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.add(aOuterWindowId + aMediaSource + aId);
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}
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/**
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* Remove a device record from webrtcUI.activePerms, denoting a device as
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* no longer in use by the site. Meaning: gUM requests for this device will
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* no longer be implicitly granted through the webrtcUI.activePerms mechanism.
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*
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* However, if webrtcUI.deviceGracePeriodTimeoutMs is defined, the implicit
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* grant is extended for an additional period of time through SitePermissions.
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*/
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deactivateDevicePerm(
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aOuterWindowId,
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aMediaSource,
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aId,
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aPermissionPrincipal
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) {
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// If we don't have active permissions for the given window anymore don't
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// set a grace period. This happens if there has been a user revoke and
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// webrtcUI clears the permissions.
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if (!webrtcUI.activePerms.has(this.manager.outerWindowId)) {
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return;
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}
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let set = webrtcUI.activePerms.get(this.manager.outerWindowId);
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set.delete(aOuterWindowId + aMediaSource + aId);
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// Add a permission grace period for camera and microphone only
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if (
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(aMediaSource != "camera" && aMediaSource != "microphone") ||
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!this.browsingContext.top.embedderElement
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) {
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return;
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}
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let gracePeriodMs = webrtcUI.deviceGracePeriodTimeoutMs;
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if (gracePeriodMs > 0) {
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// A grace period is extended (even past navigation) to this outer window
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// + origin + deviceId only. This avoids re-prompting without the user
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// having to persist permission to the site, in a common case of a web
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// conference asking them for the camera in a lobby page, before
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// navigating to the actual meeting room page. Does not survive tab close.
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//
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// Caution: since navigation causes deactivation, we may be in the middle
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// of one. We must pass in a principal & URI for SitePermissions to use
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// instead of browser.currentURI, because the latter may point to a new
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// page already, and we must not leak permission to unrelated pages.
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//
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let permissionName = [aMediaSource, aId].join("^");
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SitePermissions.setForPrincipal(
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aPermissionPrincipal,
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permissionName,
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SitePermissions.ALLOW,
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SitePermissions.SCOPE_TEMPORARY,
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this.browsingContext.top.embedderElement,
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gracePeriodMs,
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aPermissionPrincipal.URI
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);
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}
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}
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/**
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* Checks if the principal has sufficient permissions
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* to fulfill the given request. If the request can be
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* fulfilled, a message is sent to the child
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* signaling that WebRTC permissions were given and
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* this function will return true.
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*/
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checkRequestAllowed(aRequest, aPrincipal) {
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if (!aRequest.secure) {
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return false;
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}
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// Always prompt for screen sharing
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if (aRequest.sharingScreen) {
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return false;
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}
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if (aRequest.audioOutputDevices?.length) {
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return false;
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}
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let { perms } = Services;
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if (
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perms.testExactPermissionFromPrincipal(aPrincipal, "MediaManagerVideo")
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) {
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perms.removeFromPrincipal(aPrincipal, "MediaManagerVideo");
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}
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// Don't use persistent permissions from the top-level principal
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// if we're in a cross-origin iframe and permission delegation is not
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// allowed, or when we're handling a potentially insecure third party
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// through a wildcard ("*") allow attribute.
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let limited =
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(aRequest.isThirdPartyOrigin && !aRequest.shouldDelegatePermission) ||
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aRequest.secondOrigin;
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let set = webrtcUI.activePerms.get(this.manager.outerWindowId);
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let { callID, windowID } = aRequest;
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// We consider a camera active if it is active or was active within a
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// grace period of milliseconds ago.
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const isAllowed = ({ mediaSource, id }, permissionID) =>
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set?.has(windowID + mediaSource + id) ||
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(!limited &&
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(SitePermissions.getForPrincipal(aPrincipal, permissionID).state ==
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SitePermissions.ALLOW ||
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SitePermissions.getForPrincipal(
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aPrincipal,
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[mediaSource, id].join("^"),
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this.getBrowser()
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).state == SitePermissions.ALLOW));
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let {
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audioInputDevices: [microphone],
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videoInputDevices: [camera],
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} = aRequest;
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if (microphone && !isAllowed(microphone, "microphone")) {
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return false;
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}
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if (camera && !isAllowed(camera, "camera")) {
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return false;
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}
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let devices = [];
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if (camera) {
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perms.addFromPrincipal(
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aPrincipal,
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"MediaManagerVideo",
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perms.ALLOW_ACTION,
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perms.EXPIRE_SESSION
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);
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devices.push(camera.deviceIndex);
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this.activateDevicePerm(windowID, camera.mediaSource, camera.id);
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}
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if (microphone) {
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devices.push(microphone.deviceIndex);
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this.activateDevicePerm(windowID, microphone.mediaSource, microphone.id);
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}
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this.checkOSPermission(!!camera, !!microphone, false).then(
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havePermission => {
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if (havePermission) {
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this.sendAsyncMessage("webrtc:Allow", { callID, windowID, devices });
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} else {
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this.denyRequestNoPermission(aRequest);
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}
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}
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);
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return true;
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}
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}
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function prompt(aActor, aBrowser, aRequest) {
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let {
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audioInputDevices,
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videoInputDevices,
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audioOutputDevices,
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sharingScreen,
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sharingAudio,
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requestTypes,
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} = aRequest;
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let principal = Services.scriptSecurityManager.createContentPrincipalFromOrigin(
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aRequest.origin
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);
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// For add-on principals, we immediately check for permission instead
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// of waiting for the notification to focus. This allows for supporting
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// cases such as browserAction popups where no prompt is shown.
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if (principal.addonPolicy) {
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let isPopup = false;
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let isBackground = false;
|
|
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for (let view of principal.addonPolicy.extension.views) {
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if (view.viewType == "popup" && view.xulBrowser == aBrowser) {
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isPopup = true;
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}
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if (view.viewType == "background" && view.xulBrowser == aBrowser) {
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isBackground = true;
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}
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}
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// Recording from background pages is considered too sensitive and will
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// always be denied.
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if (isBackground) {
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aActor.denyRequest(aRequest);
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return;
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}
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// If the request comes from a popup, we don't want to show the prompt,
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// but we do want to allow the request if the user previously gave permission.
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if (isPopup) {
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if (!aActor.checkRequestAllowed(aRequest, principal, aBrowser)) {
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aActor.denyRequest(aRequest);
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}
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return;
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}
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}
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|
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// If the user has already denied access once in this tab,
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// deny again without even showing the notification icon.
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|
for (const type of requestTypes) {
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const permissionID =
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type == "AudioCapture" ? "microphone" : type.toLowerCase();
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if (
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SitePermissions.getForPrincipal(principal, permissionID, aBrowser)
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.state == SitePermissions.BLOCK
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) {
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aActor.denyRequest(aRequest);
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return;
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}
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}
|
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|
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let chromeDoc = aBrowser.ownerDocument;
|
|
let stringBundle = chromeDoc.defaultView.gNavigatorBundle;
|
|
let localization = new Localization(
|
|
["branding/brand.ftl", "browser/browser.ftl"],
|
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true
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);
|
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|
|
// Mind the order, because for simplicity we're iterating over the list using
|
|
// "includes()". This allows the rotation of string identifiers. We list the
|
|
// full identifiers here so they can be cross-referenced more easily.
|
|
let joinedRequestTypes = requestTypes.join("And");
|
|
let requestMessages;
|
|
if (aRequest.secondOrigin) {
|
|
requestMessages = [
|
|
// Individual request types first.
|
|
"getUserMedia.shareCameraUnsafeDelegation2.message",
|
|
"getUserMedia.shareMicrophoneUnsafeDelegations2.message",
|
|
"getUserMedia.shareScreenUnsafeDelegation2.message",
|
|
"getUserMedia.shareAudioCaptureUnsafeDelegation2.message",
|
|
"selectAudioOutput.shareSpeakerUnsafeDelegation.message",
|
|
// Combinations of the above request types last.
|
|
"getUserMedia.shareCameraAndMicrophoneUnsafeDelegation2.message",
|
|
"getUserMedia.shareCameraAndAudioCaptureUnsafeDelegation2.message",
|
|
"getUserMedia.shareScreenAndMicrophoneUnsafeDelegation2.message",
|
|
"getUserMedia.shareScreenAndAudioCaptureUnsafeDelegation2.message",
|
|
];
|
|
} else {
|
|
requestMessages = [
|
|
// Individual request types first.
|
|
"getUserMedia.shareCamera3.message",
|
|
"getUserMedia.shareMicrophone3.message",
|
|
"getUserMedia.shareScreen4.message",
|
|
"getUserMedia.shareAudioCapture3.message",
|
|
"selectAudioOutput.shareSpeaker.message",
|
|
// Combinations of the above request types last.
|
|
"getUserMedia.shareCameraAndMicrophone3.message",
|
|
"getUserMedia.shareCameraAndAudioCapture3.message",
|
|
"getUserMedia.shareScreenAndMicrophone4.message",
|
|
"getUserMedia.shareScreenAndAudioCapture4.message",
|
|
];
|
|
}
|
|
|
|
let stringId = requestMessages.find(id => id.includes(joinedRequestTypes));
|
|
let message = aRequest.secondOrigin
|
|
? stringBundle.getFormattedString(stringId, ["<>", "{}"])
|
|
: stringBundle.getFormattedString(stringId, ["<>"]);
|
|
|
|
let notification; // Used by action callbacks.
|
|
let mainAction = {
|
|
label: stringBundle.getString("getUserMedia.allow.label"),
|
|
accessKey: stringBundle.getString("getUserMedia.allow.accesskey"),
|
|
// The real callback will be set during the "showing" event. The
|
|
// empty function here is so that PopupNotifications.show doesn't
|
|
// reject the action.
|
|
callback() {},
|
|
};
|
|
|
|
let notificationSilencingEnabled = Services.prefs.getBoolPref(
|
|
"privacy.webrtc.allowSilencingNotifications"
|
|
);
|
|
|
|
let secondaryActions = [];
|
|
if (notificationSilencingEnabled && sharingScreen) {
|
|
// We want to free up the checkbox at the bottom of the permission
|
|
// panel for the notification silencing option, so we use a
|
|
// different configuration for the permissions panel when
|
|
// notification silencing is enabled.
|
|
|
|
// The formatMessagesSync method returns an array of results
|
|
// for each message that was requested, and for the ones with
|
|
// attributes, returns an attributes array with objects like:
|
|
//
|
|
// { name: "someName", value: "somevalue" }
|
|
//
|
|
// For these strings, which use .label and .accesskey attributes,
|
|
// this convertAttributesToObjects function looks at the attributes
|
|
// property of each message, and returns back an array of objects,
|
|
// where each object property is one of the attribute names, and
|
|
// the property value is the attribute value.
|
|
//
|
|
// So, the above example would be converted into:
|
|
//
|
|
// { someName: "someValue" }
|
|
//
|
|
// which is much easier to access and pass along to other things.
|
|
let convertAttributesToObjects = messages => {
|
|
return messages.map(msg => {
|
|
return msg.attributes.reduce((acc, attribute) => {
|
|
acc[attribute.name] = attribute.value;
|
|
return acc;
|
|
}, {});
|
|
});
|
|
};
|
|
|
|
let [block, alwaysBlock] = convertAttributesToObjects(
|
|
localization.formatMessagesSync([
|
|
{ id: "popup-screen-sharing-block" },
|
|
{ id: "popup-screen-sharing-always-block" },
|
|
])
|
|
);
|
|
|
|
secondaryActions = [
|
|
{
|
|
label: block.label,
|
|
accessKey: block.accesskey,
|
|
callback(aState) {
|
|
aActor.denyRequest(aRequest);
|
|
SitePermissions.setForPrincipal(
|
|
principal,
|
|
"screen",
|
|
SitePermissions.BLOCK,
|
|
SitePermissions.SCOPE_TEMPORARY,
|
|
notification.browser
|
|
);
|
|
},
|
|
},
|
|
{
|
|
label: alwaysBlock.label,
|
|
accessKey: alwaysBlock.accesskey,
|
|
callback(aState) {
|
|
aActor.denyRequest(aRequest);
|
|
SitePermissions.setForPrincipal(
|
|
principal,
|
|
"screen",
|
|
SitePermissions.BLOCK,
|
|
SitePermissions.SCOPE_PERSISTENT,
|
|
notification.browser
|
|
);
|
|
},
|
|
},
|
|
];
|
|
} else {
|
|
secondaryActions = [
|
|
{
|
|
label: stringBundle.getString("getUserMedia.block.label"),
|
|
accessKey: stringBundle.getString("getUserMedia.block.accesskey"),
|
|
callback(aState) {
|
|
aActor.denyRequest(aRequest);
|
|
|
|
// Denying a camera / microphone prompt means we set a temporary or
|
|
// persistent permission block. There may still be active grace period
|
|
// permissions at this point. We need to remove them.
|
|
clearTemporaryGrants(
|
|
notification.browser,
|
|
videoInputDevices.length && !sharingScreen,
|
|
audioInputDevices.length
|
|
);
|
|
|
|
let scope = SitePermissions.SCOPE_TEMPORARY;
|
|
if (aState && aState.checkboxChecked) {
|
|
scope = SitePermissions.SCOPE_PERSISTENT;
|
|
}
|
|
if (audioInputDevices.length) {
|
|
SitePermissions.setForPrincipal(
|
|
principal,
|
|
"microphone",
|
|
SitePermissions.BLOCK,
|
|
scope,
|
|
notification.browser
|
|
);
|
|
}
|
|
if (videoInputDevices.length) {
|
|
SitePermissions.setForPrincipal(
|
|
principal,
|
|
sharingScreen ? "screen" : "camera",
|
|
SitePermissions.BLOCK,
|
|
scope,
|
|
notification.browser
|
|
);
|
|
}
|
|
},
|
|
},
|
|
];
|
|
}
|
|
|
|
let productName = gBrandBundle.GetStringFromName("brandShortName");
|
|
|
|
let options = {
|
|
name: webrtcUI.getHostOrExtensionName(principal.URI),
|
|
persistent: true,
|
|
hideClose: true,
|
|
eventCallback(aTopic, aNewBrowser, isCancel) {
|
|
if (aTopic == "swapping") {
|
|
return true;
|
|
}
|
|
|
|
let doc = this.browser.ownerDocument;
|
|
|
|
// Clean-up video streams of screensharing previews.
|
|
if (
|
|
((aTopic == "dismissed" || aTopic == "removed") &&
|
|
requestTypes.includes("Screen")) ||
|
|
!requestTypes.includes("Screen")
|
|
) {
|
|
let video = doc.getElementById("webRTC-previewVideo");
|
|
if (video.stream) {
|
|
video.stream.getTracks().forEach(t => t.stop());
|
|
video.stream = null;
|
|
video.src = null;
|
|
doc.getElementById("webRTC-preview").hidden = true;
|
|
}
|
|
let menupopup = doc.getElementById("webRTC-selectWindow-menupopup");
|
|
if (menupopup._commandEventListener) {
|
|
menupopup.removeEventListener(
|
|
"command",
|
|
menupopup._commandEventListener
|
|
);
|
|
menupopup._commandEventListener = null;
|
|
}
|
|
}
|
|
|
|
// If the notification has been cancelled (e.g. due to entering full-screen), also cancel the webRTC request
|
|
if (aTopic == "removed" && notification && isCancel) {
|
|
aActor.denyRequest(aRequest);
|
|
}
|
|
|
|
if (aTopic != "showing") {
|
|
return false;
|
|
}
|
|
|
|
// BLOCK is handled immediately by MediaManager if it has been set
|
|
// persistently in the permission manager. If it has been set on the tab,
|
|
// it is handled synchronously before we add the notification.
|
|
// Handling of ALLOW is delayed until the popupshowing event,
|
|
// to avoid granting permissions automatically to background tabs.
|
|
if (aActor.checkRequestAllowed(aRequest, principal, aBrowser)) {
|
|
this.remove();
|
|
return true;
|
|
}
|
|
|
|
function listDevices(menupopup, devices, labelID) {
|
|
while (menupopup.lastChild) {
|
|
menupopup.removeChild(menupopup.lastChild);
|
|
}
|
|
let menulist = menupopup.parentNode;
|
|
// Removing the child nodes of the menupopup doesn't clear the value
|
|
// attribute of the menulist. This can have unfortunate side effects
|
|
// when the list is rebuilt with a different content, so we remove
|
|
// the value attribute and unset the selectedItem explicitly.
|
|
menulist.removeAttribute("value");
|
|
menulist.selectedItem = null;
|
|
|
|
for (let device of devices) {
|
|
addDeviceToList(menupopup, device.name, device.deviceIndex);
|
|
}
|
|
|
|
let label = doc.getElementById(labelID);
|
|
if (devices.length == 1) {
|
|
label.value = devices[0].name;
|
|
label.hidden = false;
|
|
menulist.hidden = true;
|
|
} else {
|
|
label.hidden = true;
|
|
menulist.hidden = false;
|
|
}
|
|
}
|
|
|
|
let notificationElement = doc.getElementById(
|
|
"webRTC-shareDevices-notification"
|
|
);
|
|
|
|
function checkDisabledWindowMenuItem() {
|
|
let list = doc.getElementById("webRTC-selectWindow-menulist");
|
|
let item = list.selectedItem;
|
|
if (!item || item.hasAttribute("disabled")) {
|
|
notificationElement.setAttribute("invalidselection", "true");
|
|
} else {
|
|
notificationElement.removeAttribute("invalidselection");
|
|
}
|
|
}
|
|
|
|
function listScreenShareDevices(menupopup, devices) {
|
|
while (menupopup.lastChild) {
|
|
menupopup.removeChild(menupopup.lastChild);
|
|
}
|
|
|
|
// Removing the child nodes of the menupopup doesn't clear the value
|
|
// attribute of the menulist. This can have unfortunate side effects
|
|
// when the list is rebuilt with a different content, so we remove
|
|
// the value attribute and unset the selectedItem explicitly.
|
|
menupopup.parentNode.removeAttribute("value");
|
|
menupopup.parentNode.selectedItem = null;
|
|
|
|
let label = doc.getElementById("webRTC-selectWindow-label");
|
|
const gumStringId = "getUserMedia.selectWindowOrScreen2";
|
|
label.setAttribute(
|
|
"value",
|
|
stringBundle.getString(gumStringId + ".label")
|
|
);
|
|
label.setAttribute(
|
|
"accesskey",
|
|
stringBundle.getString(gumStringId + ".accesskey")
|
|
);
|
|
|
|
// "Select a Window or Screen" is the default because we can't and don't
|
|
// want to pick a 'default' window to share (Full screen is "scary").
|
|
addDeviceToList(
|
|
menupopup,
|
|
stringBundle.getString("getUserMedia.pickWindowOrScreen.label"),
|
|
"-1"
|
|
);
|
|
menupopup.appendChild(doc.createXULElement("menuseparator"));
|
|
|
|
let isPipeWire = false;
|
|
|
|
// Build the list of 'devices'.
|
|
let monitorIndex = 1;
|
|
for (let i = 0; i < devices.length; ++i) {
|
|
let device = devices[i];
|
|
let type = device.mediaSource;
|
|
let name;
|
|
// Building screen list from available screens.
|
|
if (type == "screen") {
|
|
if (device.name == "Primary Monitor") {
|
|
name = stringBundle.getString(
|
|
"getUserMedia.shareEntireScreen.label"
|
|
);
|
|
} else {
|
|
name = stringBundle.getFormattedString(
|
|
"getUserMedia.shareMonitor.label",
|
|
[monitorIndex]
|
|
);
|
|
++monitorIndex;
|
|
}
|
|
} else {
|
|
name = device.name;
|
|
// When we share content by PipeWire add only one item to the device
|
|
// list. When it's selected PipeWire portal dialog is opened and
|
|
// user confirms actual window/screen sharing there.
|
|
// Don't mark it as scary as there's an extra confirmation step by
|
|
// PipeWire portal dialog.
|
|
if (name == PIPEWIRE_PORTAL_NAME && device.id == PIPEWIRE_ID) {
|
|
isPipeWire = true;
|
|
let sawcStringId = "getUserMedia.sharePipeWirePortal.label";
|
|
let item = addDeviceToList(
|
|
menupopup,
|
|
stringBundle.getString(sawcStringId),
|
|
i,
|
|
type
|
|
);
|
|
item.deviceId = device.id;
|
|
item.mediaSource = type;
|
|
break;
|
|
}
|
|
if (type == "application") {
|
|
// The application names returned by the platform are of the form:
|
|
// <window count>\x1e<application name>
|
|
let sepIndex = name.indexOf("\x1e");
|
|
let count = name.slice(0, sepIndex);
|
|
let sawcStringId =
|
|
"getUserMedia.shareApplicationWindowCount.label";
|
|
name = PluralForm.get(
|
|
parseInt(count),
|
|
stringBundle.getString(sawcStringId)
|
|
)
|
|
.replace("#1", name.slice(sepIndex + 1))
|
|
.replace("#2", count);
|
|
}
|
|
}
|
|
let item = addDeviceToList(menupopup, name, i, type);
|
|
item.deviceId = device.id;
|
|
item.mediaSource = type;
|
|
if (device.scary) {
|
|
item.scary = true;
|
|
}
|
|
}
|
|
|
|
// Always re-select the "No <type>" item.
|
|
doc
|
|
.getElementById("webRTC-selectWindow-menulist")
|
|
.removeAttribute("value");
|
|
doc.getElementById("webRTC-all-windows-shared").hidden = true;
|
|
|
|
menupopup._commandEventListener = event => {
|
|
checkDisabledWindowMenuItem();
|
|
let video = doc.getElementById("webRTC-previewVideo");
|
|
if (video.stream) {
|
|
video.stream.getTracks().forEach(t => t.stop());
|
|
video.stream = null;
|
|
}
|
|
|
|
let type = event.target.mediaSource;
|
|
let deviceId = event.target.deviceId;
|
|
if (deviceId == undefined) {
|
|
doc.getElementById("webRTC-preview").hidden = true;
|
|
video.src = null;
|
|
return;
|
|
}
|
|
|
|
let scary = event.target.scary;
|
|
let warning = doc.getElementById("webRTC-previewWarning");
|
|
let warningBox = doc.getElementById("webRTC-previewWarningBox");
|
|
warningBox.hidden = !scary;
|
|
let chromeWin = doc.defaultView;
|
|
if (scary) {
|
|
warningBox.hidden = false;
|
|
let string;
|
|
let bundle = chromeWin.gNavigatorBundle;
|
|
|
|
let learnMoreText = bundle.getString(
|
|
"getUserMedia.shareScreen.learnMoreLabel"
|
|
);
|
|
let baseURL = Services.urlFormatter.formatURLPref(
|
|
"app.support.baseURL"
|
|
);
|
|
|
|
if (type == "screen") {
|
|
string = bundle.getString(
|
|
"getUserMedia.shareScreenWarning2.message"
|
|
);
|
|
} else {
|
|
let brand = doc
|
|
.getElementById("bundle_brand")
|
|
.getString("brandShortName");
|
|
string = bundle.getFormattedString(
|
|
"getUserMedia.shareFirefoxWarning2.message",
|
|
[brand]
|
|
);
|
|
}
|
|
|
|
warning.textContent = string;
|
|
|
|
let learnMore = doc.getElementById(
|
|
"webRTC-previewWarning-learnMore"
|
|
);
|
|
learnMore.setAttribute("href", baseURL + "screenshare-safety");
|
|
learnMore.textContent = learnMoreText;
|
|
|
|
// On Catalina, we don't want to blow our chance to show the
|
|
// OS-level helper prompt to enable screen recording if the user
|
|
// intends to reject anyway. OTOH showing it when they click Allow
|
|
// is too late. A happy middle is to show it when the user makes a
|
|
// choice in the picker. This already happens implicitly if the
|
|
// user chooses "Entire desktop", as a side-effect of our preview,
|
|
// we just need to also do it if they choose "Firefox". These are
|
|
// the lone two options when permission is absent on Catalina.
|
|
// Ironically, these are the two sources marked "scary" from a
|
|
// web-sharing perspective, which is why this code resides here.
|
|
// A restart doesn't appear to be necessary in spite of OS wording.
|
|
let scrStatus = {};
|
|
OSPermissions.getScreenCapturePermissionState(scrStatus);
|
|
if (scrStatus.value == OSPermissions.PERMISSION_STATE_DENIED) {
|
|
OSPermissions.maybeRequestScreenCapturePermission();
|
|
}
|
|
}
|
|
|
|
let perms = Services.perms;
|
|
let chromePrincipal = Services.scriptSecurityManager.getSystemPrincipal();
|
|
perms.addFromPrincipal(
|
|
chromePrincipal,
|
|
"MediaManagerVideo",
|
|
perms.ALLOW_ACTION,
|
|
perms.EXPIRE_SESSION
|
|
);
|
|
|
|
if (!isPipeWire) {
|
|
video.deviceId = deviceId;
|
|
let constraints = {
|
|
video: { mediaSource: type, deviceId: { exact: deviceId } },
|
|
};
|
|
chromeWin.navigator.mediaDevices.getUserMedia(constraints).then(
|
|
stream => {
|
|
if (video.deviceId != deviceId) {
|
|
// The user has selected a different device or closed the panel
|
|
// before getUserMedia finished.
|
|
stream.getTracks().forEach(t => t.stop());
|
|
return;
|
|
}
|
|
video.srcObject = stream;
|
|
video.stream = stream;
|
|
doc.getElementById("webRTC-preview").hidden = false;
|
|
video.onloadedmetadata = function(e) {
|
|
video.play();
|
|
};
|
|
},
|
|
err => {
|
|
if (
|
|
err.name == "OverconstrainedError" &&
|
|
err.constraint == "deviceId"
|
|
) {
|
|
// Window has disappeared since enumeration, which can happen.
|
|
// No preview for you.
|
|
return;
|
|
}
|
|
Cu.reportError(
|
|
`error in preview: ${err.message} ${err.constraint}`
|
|
);
|
|
}
|
|
);
|
|
}
|
|
};
|
|
menupopup.addEventListener("command", menupopup._commandEventListener);
|
|
}
|
|
|
|
function addDeviceToList(menupopup, deviceName, deviceIndex, type) {
|
|
let menuitem = doc.createXULElement("menuitem");
|
|
menuitem.setAttribute("value", deviceIndex);
|
|
menuitem.setAttribute("label", deviceName);
|
|
menuitem.setAttribute("tooltiptext", deviceName);
|
|
if (type) {
|
|
menuitem.setAttribute("devicetype", type);
|
|
}
|
|
|
|
if (deviceIndex == "-1") {
|
|
menuitem.setAttribute("disabled", true);
|
|
}
|
|
|
|
menupopup.appendChild(menuitem);
|
|
return menuitem;
|
|
}
|
|
|
|
doc.getElementById("webRTC-selectCamera").hidden =
|
|
!videoInputDevices.length || sharingScreen;
|
|
doc.getElementById("webRTC-selectWindowOrScreen").hidden =
|
|
!sharingScreen || !videoInputDevices.length;
|
|
doc.getElementById("webRTC-selectMicrophone").hidden =
|
|
!audioInputDevices.length || sharingAudio;
|
|
doc.getElementById(
|
|
"webRTC-selectSpeaker"
|
|
).hidden = !audioOutputDevices.length;
|
|
|
|
let camMenupopup = doc.getElementById("webRTC-selectCamera-menupopup");
|
|
let windowMenupopup = doc.getElementById("webRTC-selectWindow-menupopup");
|
|
let micMenupopup = doc.getElementById(
|
|
"webRTC-selectMicrophone-menupopup"
|
|
);
|
|
let speakerMenupopup = doc.getElementById(
|
|
"webRTC-selectSpeaker-menupopup"
|
|
);
|
|
let describedByIDs = ["webRTC-shareDevices-notification-description"];
|
|
let describedBySuffix = "icon";
|
|
|
|
if (sharingScreen) {
|
|
listScreenShareDevices(windowMenupopup, videoInputDevices);
|
|
checkDisabledWindowMenuItem();
|
|
} else {
|
|
let labelID = "webRTC-selectCamera-single-device-label";
|
|
listDevices(camMenupopup, videoInputDevices, labelID);
|
|
notificationElement.removeAttribute("invalidselection");
|
|
if (videoInputDevices.length == 1) {
|
|
describedByIDs.push("webRTC-selectCamera-" + describedBySuffix);
|
|
describedByIDs.push(labelID);
|
|
}
|
|
}
|
|
|
|
if (!sharingAudio) {
|
|
let labelID = "webRTC-selectMicrophone-single-device-label";
|
|
listDevices(micMenupopup, audioInputDevices, labelID);
|
|
if (audioInputDevices.length == 1) {
|
|
describedByIDs.push("webRTC-selectMicrophone-" + describedBySuffix);
|
|
describedByIDs.push(labelID);
|
|
}
|
|
}
|
|
|
|
let labelID = "webRTC-selectSpeaker-single-device-label";
|
|
listDevices(speakerMenupopup, audioOutputDevices, labelID);
|
|
if (audioInputDevices.length == 1) {
|
|
describedByIDs.push("webRTC-selectSpeaker-icon");
|
|
describedByIDs.push(labelID);
|
|
}
|
|
|
|
// PopupNotifications knows to clear the aria-describedby attribute
|
|
// when hiding, so we don't have to worry about cleaning it up ourselves.
|
|
chromeDoc.defaultView.PopupNotifications.panel.setAttribute(
|
|
"aria-describedby",
|
|
describedByIDs.join(" ")
|
|
);
|
|
|
|
this.mainAction.callback = async function(aState) {
|
|
let remember = false;
|
|
let silenceNotifications = false;
|
|
|
|
if (notificationSilencingEnabled && sharingScreen) {
|
|
silenceNotifications = aState && aState.checkboxChecked;
|
|
} else {
|
|
remember = aState && aState.checkboxChecked;
|
|
}
|
|
|
|
let allowedDevices = [];
|
|
let perms = Services.perms;
|
|
if (videoInputDevices.length) {
|
|
let listId =
|
|
"webRTC-select" +
|
|
(sharingScreen ? "Window" : "Camera") +
|
|
"-menulist";
|
|
let videoDeviceIndex = doc.getElementById(listId).value;
|
|
let allowVideoDevice = videoDeviceIndex != "-1";
|
|
if (allowVideoDevice) {
|
|
allowedDevices.push(videoDeviceIndex);
|
|
// Session permission will be removed after use
|
|
// (it's really one-shot, not for the entire session)
|
|
perms.addFromPrincipal(
|
|
principal,
|
|
"MediaManagerVideo",
|
|
perms.ALLOW_ACTION,
|
|
perms.EXPIRE_SESSION
|
|
);
|
|
let { mediaSource, id } = videoInputDevices.find(
|
|
({ deviceIndex }) => deviceIndex == videoDeviceIndex
|
|
);
|
|
aActor.activateDevicePerm(aRequest.windowID, mediaSource, id);
|
|
if (remember) {
|
|
SitePermissions.setForPrincipal(
|
|
principal,
|
|
"camera",
|
|
SitePermissions.ALLOW
|
|
);
|
|
}
|
|
}
|
|
}
|
|
if (audioInputDevices.length) {
|
|
if (!sharingAudio) {
|
|
let audioDeviceIndex = doc.getElementById(
|
|
"webRTC-selectMicrophone-menulist"
|
|
).value;
|
|
let allowMic = audioDeviceIndex != "-1";
|
|
if (allowMic) {
|
|
allowedDevices.push(audioDeviceIndex);
|
|
let { mediaSource, id } = audioInputDevices.find(
|
|
({ deviceIndex }) => deviceIndex == audioDeviceIndex
|
|
);
|
|
aActor.activateDevicePerm(aRequest.windowID, mediaSource, id);
|
|
if (remember) {
|
|
SitePermissions.setForPrincipal(
|
|
principal,
|
|
"microphone",
|
|
SitePermissions.ALLOW
|
|
);
|
|
}
|
|
}
|
|
} else {
|
|
// Only one device possible for audio capture.
|
|
allowedDevices.push(0);
|
|
}
|
|
}
|
|
if (audioOutputDevices.length) {
|
|
let audioDeviceIndex = doc.getElementById(
|
|
"webRTC-selectSpeaker-menulist"
|
|
).value;
|
|
let allowSpeaker = audioDeviceIndex != "-1";
|
|
if (allowSpeaker) {
|
|
allowedDevices.push(audioDeviceIndex);
|
|
}
|
|
}
|
|
|
|
if (!allowedDevices.length) {
|
|
aActor.denyRequest(aRequest);
|
|
return;
|
|
}
|
|
|
|
let camNeeded = !!videoInputDevices.length && !sharingScreen;
|
|
let scrNeeded = !!videoInputDevices.length && sharingScreen;
|
|
let micNeeded = !!audioInputDevices.length;
|
|
let havePermission = await aActor.checkOSPermission(
|
|
camNeeded,
|
|
micNeeded,
|
|
scrNeeded
|
|
);
|
|
if (!havePermission) {
|
|
aActor.denyRequestNoPermission(aRequest);
|
|
return;
|
|
}
|
|
|
|
aActor.sendAsyncMessage("webrtc:Allow", {
|
|
callID: aRequest.callID,
|
|
windowID: aRequest.windowID,
|
|
devices: allowedDevices,
|
|
suppressNotifications: silenceNotifications,
|
|
});
|
|
};
|
|
|
|
// If we haven't handled the permission yet, we want to show the doorhanger.
|
|
return false;
|
|
},
|
|
};
|
|
|
|
function shouldShowAlwaysRemember() {
|
|
// Don't offer "always remember" action in PB mode
|
|
if (PrivateBrowsingUtils.isBrowserPrivate(aBrowser)) {
|
|
return false;
|
|
}
|
|
|
|
// Don't offer "always remember" action in third party with no permission
|
|
// delegation
|
|
if (aRequest.isThirdPartyOrigin && !aRequest.shouldDelegatePermission) {
|
|
return false;
|
|
}
|
|
|
|
// Don't offer "always remember" action in maybe unsafe permission
|
|
// delegation
|
|
if (aRequest.shouldDelegatePermission && aRequest.secondOrigin) {
|
|
return false;
|
|
}
|
|
|
|
// "Always allow this speaker" not yet supported for
|
|
// selectAudioOutput(). Bug 1712892
|
|
if (audioOutputDevices.length) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
if (shouldShowAlwaysRemember()) {
|
|
// Disable the permanent 'Allow' action if the connection isn't secure, or for
|
|
// screen/audio sharing (because we can't guess which window the user wants to
|
|
// share without prompting). Note that we never enter this block for private
|
|
// browsing windows.
|
|
let reasonForNoPermanentAllow = "";
|
|
if (sharingScreen) {
|
|
reasonForNoPermanentAllow =
|
|
"getUserMedia.reasonForNoPermanentAllow.screen3";
|
|
} else if (sharingAudio) {
|
|
reasonForNoPermanentAllow =
|
|
"getUserMedia.reasonForNoPermanentAllow.audio";
|
|
} else if (!aRequest.secure) {
|
|
reasonForNoPermanentAllow =
|
|
"getUserMedia.reasonForNoPermanentAllow.insecure";
|
|
}
|
|
|
|
options.checkbox = {
|
|
label: stringBundle.getString("getUserMedia.remember"),
|
|
checked: principal.isAddonOrExpandedAddonPrincipal,
|
|
checkedState: reasonForNoPermanentAllow
|
|
? {
|
|
disableMainAction: true,
|
|
warningLabel: stringBundle.getFormattedString(
|
|
reasonForNoPermanentAllow,
|
|
[productName]
|
|
),
|
|
}
|
|
: undefined,
|
|
};
|
|
}
|
|
|
|
// If the notification silencing feature is enabled and we're sharing a
|
|
// screen, then the checkbox for the permission panel is what controls
|
|
// notification silencing.
|
|
if (notificationSilencingEnabled && sharingScreen) {
|
|
let [silenceNotifications] = localization.formatMessagesSync([
|
|
{ id: "popup-mute-notifications-checkbox" },
|
|
]);
|
|
|
|
options.checkbox = {
|
|
label: silenceNotifications.value,
|
|
checked: false,
|
|
checkedState: {
|
|
disableMainAction: false,
|
|
},
|
|
};
|
|
}
|
|
|
|
let iconType = "Devices";
|
|
if (requestTypes.length == 1) {
|
|
switch (requestTypes[0]) {
|
|
case "AudioCapture":
|
|
iconType = "Microphone";
|
|
break;
|
|
case "Microphone":
|
|
case "Speaker":
|
|
iconType = requestTypes[0];
|
|
break;
|
|
}
|
|
}
|
|
if (requestTypes.includes("Screen")) {
|
|
iconType = "Screen";
|
|
}
|
|
let anchorId = "webRTC-share" + iconType + "-notification-icon";
|
|
|
|
if (aRequest.secondOrigin) {
|
|
options.secondName = webrtcUI.getHostOrExtensionName(
|
|
null,
|
|
aRequest.secondOrigin
|
|
);
|
|
}
|
|
|
|
mainAction.disableHighlight = true;
|
|
|
|
notification = chromeDoc.defaultView.PopupNotifications.show(
|
|
aBrowser,
|
|
"webRTC-shareDevices",
|
|
message,
|
|
anchorId,
|
|
mainAction,
|
|
secondaryActions,
|
|
options
|
|
);
|
|
notification.callID = aRequest.callID;
|
|
|
|
let schemeHistogram = Services.telemetry.getKeyedHistogramById(
|
|
"PERMISSION_REQUEST_ORIGIN_SCHEME"
|
|
);
|
|
let userInputHistogram = Services.telemetry.getKeyedHistogramById(
|
|
"PERMISSION_REQUEST_HANDLING_USER_INPUT"
|
|
);
|
|
|
|
let docURI = aRequest.documentURI;
|
|
let scheme = 0;
|
|
if (docURI.startsWith("https")) {
|
|
scheme = 2;
|
|
} else if (docURI.startsWith("http")) {
|
|
scheme = 1;
|
|
}
|
|
|
|
for (let requestType of requestTypes) {
|
|
if (requestType == "AudioCapture") {
|
|
requestType = "Microphone";
|
|
}
|
|
requestType = requestType.toLowerCase();
|
|
|
|
schemeHistogram.add(requestType, scheme);
|
|
userInputHistogram.add(requestType, aRequest.isHandlingUserInput);
|
|
}
|
|
}
|
|
|
|
function removePrompt(aBrowser, aCallId) {
|
|
let chromeWin = aBrowser.ownerGlobal;
|
|
let notification = chromeWin.PopupNotifications.getNotification(
|
|
"webRTC-shareDevices",
|
|
aBrowser
|
|
);
|
|
if (notification && notification.callID == aCallId) {
|
|
notification.remove();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Clears temporary permission grants used for WebRTC device grace periods.
|
|
* @param browser - Browser element to clear permissions for.
|
|
* @param {boolean} clearCamera - Clear camera grants.
|
|
* @param {boolean} clearMicrophone - Clear microphone grants.
|
|
*/
|
|
function clearTemporaryGrants(browser, clearCamera, clearMicrophone) {
|
|
if (!clearCamera && !clearMicrophone) {
|
|
// Nothing to clear.
|
|
return;
|
|
}
|
|
let perms = SitePermissions.getAllForBrowser(browser);
|
|
perms
|
|
.filter(perm => {
|
|
let [id, key] = perm.id.split(SitePermissions.PERM_KEY_DELIMITER);
|
|
// We only want to clear WebRTC grace periods. These are temporary, device
|
|
// specifc (double-keyed) microphone or camera permissions.
|
|
return (
|
|
key &&
|
|
perm.state == SitePermissions.ALLOW &&
|
|
perm.scope == SitePermissions.SCOPE_TEMPORARY &&
|
|
((clearCamera && id == "camera") ||
|
|
(clearMicrophone && id == "microphone"))
|
|
);
|
|
})
|
|
.forEach(perm =>
|
|
SitePermissions.removeFromPrincipal(null, perm.id, browser)
|
|
);
|
|
}
|