如何避免在使用Youtube AS3 Player API时出现安全错误
如何避免在使用Youtube AS3 Player API时出现安全错误
提问于 2010-09-24 15:46:58
我正在使用Youtube Flash Player API在AS3项目中加载视频。当我加载播放器swf时，我得到了这个非常恼人的错误：
SecurityError: Error #2047: Security sandbox violation: parent: http://www.degoudenglimlach.be/main.swf cannot access http://www.youtube.com/[[IMPORT]]/s.ytimg.com/yt/swf/watch_as3-vflbgr4dW.swf.在加载swf之前，我尝试将以下代码添加到我的代码中，但没有任何区别：
Security.allowDomain("*");
Security.allowDomain("www.youtube.com");
Security.allowDomain("youtube.com");
Security.allowDomain("s.ytimg.com");
Security.allowDomain("i.ytimg.com");任何帮助都是最好的。
下面是我的完整包装器类：
package be.zap.media
{
import flash.display.Loader;
import flash.display.Sprite;
import flash.events.Event;
import flash.net.URLRequest;
import flash.system.Security;
import flash.system.System;
/**
* ...
* @author Yens Resmann
*/
public class ZapYoutubeVideo extends Sprite
{
private var ytPlayer : Object;
private var ldr : Loader
private static const YOUTUBE_EMBEDDED_PLAYER_URL : String = "http://www.youtube.com/v/VIDEO_ID?version=3";
public static const PLAYER_READY : String = "playerReady";
public static const QUALITY_SMALL : String = "small";
public static const QUALITY_MEDIUM : String = "medium";
public static const QUALITY_LARGE : String = "large";
public static const QUALITY_HD720 : String = "hd720";
public static const QUALITY_HD1080 : String = "hd1080";
public static const QUALITY_HIGHRES : String = "highres";
public static const QUALITY_DEFAULT : String = "default";
public function ZapYoutubeVideo()
{
Security.allowDomain("*");
Security.allowDomain("www.youtube.com");
Security.allowDomain("youtube.com");
Security.allowDomain("s.ytimg.com");
Security.allowDomain("i.ytimg.com");
ldr = new Loader();
ldr.contentLoaderInfo.addEventListener(Event.INIT, handleInitPlayer);
addEventListener(Event.REMOVED_FROM_STAGE, handleRemovedFromStage);
}
public function initPlayer(vidId : String)
{
var url : String = YOUTUBE_EMBEDDED_PLAYER_URL.split("VIDEO_ID").join(vidId);
ldr.load(new URLRequest(url));
}
private function handleInitPlayer(e:Event):void
{
addChild(ldr);
ldr.contentLoaderInfo.removeEventListener(Event.INIT, handleInitPlayer);
ldr.content.addEventListener("onReady", handlePlayerReady);
ldr.content.addEventListener("onError", handlePlayerError);
ldr.content.addEventListener("onStateChange", handlePlayerStageChange);
ldr.content.addEventListener("onPlaybackQualityChange", handlePlayerQualityChange);
}
private function handlePlayerReady(e:Event):void
{
ytPlayer = ldr.content;
dispatchEvent(new Event(PLAYER_READY));
}
public function queueVideoById(videoID : String, quality : String = QUALITY_DEFAULT):void
{
ytPlayer.cueVideoById(videoID, 0, quality);
}
public function loadVideoById(videoID : String, quality : String = QUALITY_DEFAULT):void
{
ytPlayer.loadVideoById(videoID, 0, quality);
}
public function queueVideoByUrl(url : String, quality : String = QUALITY_DEFAULT):void
{
ytPlayer.cueVideoByUrl(url, 0, quality);
}
public function loadVideoByUrl(url : String, quality : String = QUALITY_DEFAULT):void
{
ytPlayer.loadVideoByUrl(url, 0, quality);
}
public function setSize(w:int, h:int):void
{
ytPlayer.setSize(w, h);
}
private function handlePlayerError(e:Event):void
{
}
private function handlePlayerStageChange(e:Event):void
{
}
private function handlePlayerQualityChange(e:Event):void
{
}
private function handleRemovedFromStage(e:Event):void
{
removeEventListener(Event.REMOVED_FROM_STAGE, handleRemovedFromStage);
dispose();
}
public function dispose():void
{
ytPlayer.destroy();
if (ldr) {
if (contains(ldr)) {
removeChild(ldr);
}
ldr = null;
}
}
/**
* parse out the Youtube Video ID from the video URL
* @param url
* @return String
*/
public static function getIdFromURL(url:String):String
{
var parts : Array = [];
if (url.indexOf("watch?v=") != -1) {
parts = url.split("watch?v=");
} else if (url.indexOf("watch/v/") != -1) {
parts = url.split("watch/v/");
} else if (url.indexOf("youtu.be/") != -1) {
parts = url.split("youtu.be/");
}
return String(parts[1]).split("/").join("");
}
/**
* get the thumbnail of the video
* @param String youtube Video ID
* @return URLRequest
*/
public static function getThumbnail(videoId : String):URLRequest
{
return new URLRequest("http://img.youtube.com/vi/" + videoId + "/0.jpg");
}
}
}回答 3
Stack Overflow用户
回答已采纳
发布于 2010-09-24 17:07:18
我认为这是不可能的，看看错误消息，你会发现他们主要需要处理的事实是YouTube没有更新他们的跨域策略文件，也没有指定元策略。下面是他们的策略文件：
<!-- http://www.youtube.com/crossdomain.xml -->
<!DOCTYPE cross-domain-policy
SYSTEM "http://www.macromedia.com/xml/dtds/cross-domain-policy.dtd">
<cross-domain-policy>
<allow-access-from domain="*.youtube.com" />
<allow-access-from domain="s.ytimg.com" />
</cross-domain-policy> 他们需要像这样添加一行：
<site-control permitted-cross-domain-policies="all"/>Stack Overflow用户
发布于 2011-01-06 23:47:27
我正在使用这个函数
private function test():void
{
var ytLoader:SWFLoader = new SWFLoader();
ytLoader.addEventListener(Event.INIT, playerLoaderInitHandler);
ytLoader.loaderContext = new LoaderContext(true);
ytLoader.load("http://www.youtube.com/v/TXrc6BwGCXE?version=3");
}
private function playerLoaderInitHandler(event:Event):void
{
var loader:SWFLoader = event.currentTarget as SWFLoader;
addChild(loader);
}我使用的是SWFLoader而不是Loader。
Stack Overflow用户
发布于 2015-01-05 08:29:03
我也遇到了同样的问题，并且花了很多时间试图在不隐藏错误的情况下进行修复。所以我做出了一个非常疯狂的举动。根据我的错误，进一步的跟踪堆栈如下所示：
error before ....
cannot access https://s.ytimg.com/yts/swfbin/player-vflzYgZmb/watch_as3.swf.
at flash.display::DisplayObject/get parent()
at fl.managers::FocusManager/isTabVisible()
at fl.managers::FocusManager/tabEnabledChangeHandler()
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at com.google.youtube.ui::UIElement/onAddedToStage()所以我注意到，youtube播放器API正在检查是否启用了标签孩子，所以我只是删除了它，并在放置播放器的容器MC中添加了它：
this.tabChildren = false; 猜猜发生了什么--没有更多的错误！我还需要在将tabChildren设置为false后，当播放器准备就绪时添加到stage player。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/3785124
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