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Makes utility for webrtc capabilities

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perroned 2017-07-07 11:32:31 -04:00
parent c08f9d4d7b
commit f5650b1d16
2 changed files with 140 additions and 61 deletions
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91
bigbluebutton-client/src/org/bigbluebutton/modules/screenshare/managers/WebRTCDeskshareManager.as
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@ -39,6 +39,7 @@ package org.bigbluebutton.modules.screenshare.managers
import org.bigbluebutton.modules.screenshare.utils.BrowserCheck;
import org.bigbluebutton.modules.screenshare.events.DeskshareToolbarEvent;
import org.bigbluebutton.modules.screenshare.events.ShareStartedEvent;
import org.bigbluebutton.modules.screenshare.utils.WebRTCScreenshareUtility;
public class WebRTCDeskshareManager {
private static const LOGGER:ILogger = getClassLogger(WebRTCDeskshareManager);
@ -162,76 +163,44 @@ package org.bigbluebutton.modules.screenshare.managers
sharing = false;
}
private function canIUseVertoOnThisBrowser(newOnWebRTCBrokeFailure:Function = null, newOnNoWebRTCFailure:Function = null, newOnSuccess:Function = null):void {
LOGGER.debug("DeskshareManager::canIUseVertoOnThisBrowser");
var options:ScreenshareOptions = new ScreenshareOptions();
options.parseOptions();
var onNoWebRTCFailure:Function, onWebRTCBrokeFailure:Function, onSuccess:Function;
/* When WebRTC DS cannot be used. Marks usingWebRTC as false,
sends out fall back to java command
*/
private function cannotUseWebRTC (message:String):void {
LOGGER.debug("WebRTCDeskshareManager::handleStartSharingEvent - falling back to java");
usingWebRTC = false;
// send out event to fallback to Java
globalDispatcher.dispatchEvent(new UseJavaModeCommand());
};
onNoWebRTCFailure = (newOnNoWebRTCFailure != null) ? newOnNoWebRTCFailure : function(message:String):void {
usingWebRTC = false;
// send out event to fallback to Java
LOGGER.debug("WebRTCDeskshareManager::handleStartSharingEvent - falling back to java");
globalDispatcher.dispatchEvent(new UseJavaModeCommand());
return;
};
/* When WebRTC is supported in the browser, theres an extension key,
but not configured properly (no extension for example)
*/
private function webRTCWorksButNotConfigured (message:String):void {
publishWindowManager.openWindow();
globalDispatcher.dispatchEvent(new WebRTCPublishWindowChangeState(WebRTCPublishWindowChangeState.DISPLAY_INSTALL));
}
onWebRTCBrokeFailure = (newOnWebRTCBrokeFailure != null) ? newOnWebRTCBrokeFailure : function(message:String):void {
publishWindowManager.openWindow();
globalDispatcher.dispatchEvent(new WebRTCPublishWindowChangeState(WebRTCPublishWindowChangeState.DISPLAY_INSTALL));
};
onSuccess = (newOnSuccess != null) ? newOnSuccess : function(message:String):void {
LOGGER.debug("WebRTCDeskshareManager::handleStartSharingEvent onSuccess");
usingWebRTC = true;
startWebRTCDeskshare();
};
if (options.tryWebRTCFirst && BrowserCheck.isWebRTCSupported() && BrowserCheck.isHttps()) {
LOGGER.debug("WebRTCDeskshareManager::handleStartSharingEvent WebRTC Supported");
if (BrowserCheck.isFirefox()) {
onSuccess("Firefox, lets try");
} else {
if (chromeExtensionKey != null) {
LOGGER.debug("WebRTCDeskshareManager::handleStartSharingEvent chrome extension link exists - ");
if (ExternalInterface.available) {
var success2:Function = function(exists:Boolean):void {
ExternalInterface.addCallback("success2", null);
LOGGER.debug("WebRTCDeskshareManager::handleStartSharingEvent inside onSuccess2");
if (exists) {
LOGGER.debug("Chrome Extension exists");
onSuccess("worked");
} else {
onWebRTCBrokeFailure("No Chrome Extension");
LOGGER.debug("no chrome extension");
}
};
ExternalInterface.addCallback("success2", success2);
ExternalInterface.call("checkChromeExtInstalled", "success2", chromeExtensionKey);
}
} else {
onNoWebRTCFailure("No chromeExtensionKey in config.xml");
return;
}
}
} else {
onNoWebRTCFailure("Web browser doesn't support WebRTC");
return;
}
/* WebRTC is supported and everything is configured properly (extension exists),
attempt to share
*/
private function webRTCWorksAndConfigured (message:String):void {
LOGGER.debug("WebRTCDeskshareManager::webRTCWorksAndConfigured");
usingWebRTC = true;
startWebRTCDeskshare();
}
/*handle start sharing event*/
public function handleStartSharingEvent():void {
LOGGER.debug("WebRTCDeskshareManager::handleStartSharingEvent");
if (WebRTCAudioStatus.getInstance().getDidWebRTCAudioFail()) {
usingWebRTC = false;
globalDispatcher.dispatchEvent(new UseJavaModeCommand());
return;
usingWebRTC = false;
globalDispatcher.dispatchEvent(new UseJavaModeCommand());
return;
}
canIUseVertoOnThisBrowser();
WebRTCScreenshareUtility.canIUseVertoOnThisBrowser(cannotUseWebRTC, webRTCWorksButNotConfigured, webRTCWorksAndConfigured);
}
public function handleShareWindowCloseEvent():void {
@ -288,7 +257,7 @@ package org.bigbluebutton.modules.screenshare.managers
var dispatcher:Dispatcher = new Dispatcher();
dispatcher.dispatchEvent(new WebRTCViewStreamEvent(WebRTCViewStreamEvent.START));
}
/*public function handleIsSharingScreenEvent(event: IsSharingScreenEvent):void {*/
public function handleIsSharingScreenEvent():void {
if (UsersUtil.amIPresenter()) {

110
bigbluebutton-client/src/org/bigbluebutton/modules/screenshare/utils/WebRTCScreenshareUtility.as Normal file
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@ -0,0 +1,110 @@
/**
* BigBlueButton open source conferencing system - http://www.bigbluebutton.org/
*
* Copyright (c) 2017 BigBlueButton Inc. and by respective authors (see below).
*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free Software
* Foundation; either version 3.0 of the License, or (at your option) any later
* version.
*
* BigBlueButton is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along
* with BigBlueButton; if not, see <http://www.gnu.org/licenses/>.
*
*/
package org.bigbluebutton.modules.screenshare.utils
{
import flash.external.ExternalInterface;
import org.as3commons.logging.api.ILogger;
import org.as3commons.logging.api.getClassLogger;
import org.bigbluebutton.modules.screenshare.utils.BrowserCheck;
import org.bigbluebutton.modules.screenshare.model.ScreenshareOptions;
public class WebRTCScreenshareUtility {
private static const LOGGER:ILogger = getClassLogger(WebRTCScreenshareUtility);
public static var chromeExtensionKey:String = null;
public static var extensionLink:String = null;
public static function canIUseVertoOnThisBrowser (cannotUseWebRTC:Function, webRTCWorksButNotConfigured:Function, webRTCWorksAndConfigured:Function):void {
LOGGER.debug("WebRTCScreenshareUtility::canIUseVertoOnThisBrowser");
if (!ExternalInterface.available) {
cannotUseWebRTC("No ExternalInterface");
return;
}
// https is required for verto and for peripheral sharing
/*if (!BrowserCheck.isHttps()) {
cannotUseWebRTC("Requires Https");
return;
}*/
var options:ScreenshareOptions = new ScreenshareOptions();
options.parseOptions();
// fail if you dont want to try webrtc first
if (!options.tryWebRTCFirst) {
cannotUseWebRTC("not supposed to try WebRTC first (config.xml)");
return;
}
// webrtc isnt even supported
if (!BrowserCheck.isWebRTCSupported()) {
cannotUseWebRTC("Web browser doesn't support WebRTC");
return;
}
// if theres no extension link-- users cant download-- fail
if (options.chromeExtensionLink == null || options.chromeExtensionLink == "") {
cannotUseWebRTC("No extensionLink in config.xml");
return;
}
WebRTCScreenshareUtility.extensionLink = options.chromeExtensionLink;
// if its firefox go ahead and let verto handle it
if (BrowserCheck.isFirefox()) {
webRTCWorksAndConfigured("Firefox, lets try");
return;
// if its chrome we need to check for the extension
} else if (BrowserCheck.isChrome()) {
WebRTCScreenshareUtility.chromeExtensionKey = options.chromeExtensionKey;
// if theres no key we cannot connect to the extension-- fail
if (WebRTCScreenshareUtility.chromeExtensionKey == null || WebRTCScreenshareUtility.chromeExtensionKey == "") {
cannotUseWebRTC("No chromeExtensionKey in config.xml");
return;
}
// connect to the verto code to attempt a connection with the extension
var onSuccess:Function = function(exists:Boolean):void {
// clear the check callback
ExternalInterface.addCallback("onSuccess", null);
if (exists) {
LOGGER.debug("Chrome Extension exists");
webRTCWorksAndConfigured("worked");
} else {
webRTCWorksButNotConfigured("No Chrome Extension");
LOGGER.debug("no chrome extension");
}
};
// add the callback
ExternalInterface.addCallback("onSuccess", onSuccess);
// check if the extension exists
ExternalInterface.call("checkChromeExtInstalled", "onSuccess", WebRTCScreenshareUtility.chromeExtensionKey);
} else {
cannotUseWebRTC("Web browser doesn't support WebRTC");
return;
}
}
}
}