How can you get a flash movie to accept parameters from the query string?
I have been using JWPlayer for a while to dynamically load videos into Facebook. Later versions of JWPlayer completely disable this ability because it can leave the player open to abuse from sites using your hosted player. How rude of them. Consequently I’ve been stuck on a quite an old version of JWPlayer just to retain this ability. However, this appears to have stopped working in Facebook recently and I need to re-implement this in a more recent version of JWPlayer.
I don’t know any ActionScript at all, but hunting through it appears to me that the config for setting up the player is here. In this case loading the config via Flash Vars passed to the movie via Javascript. So in theory I should optionally allow the config to be loaded from params around here.
private function loadExternal():void {
if (ExternalInterface.available) {
try {
var flashvars:Object = ExternalInterface.call("jwplayer.embed.flash.getVars", ExternalInterface.objectID);
if (flashvars !== null) {
for (var param:String in flashvars) {
setConfigParam(param, flashvars[param]);
}
dispatchEvent(new Event(Event.COMPLETE));
return;
}
} catch (e:Error) {}
}
if (Security.sandboxType == Security.LOCAL_WITH_FILE) {
dispatchEvent(new ErrorEvent(ErrorEvent.ERROR, false, false, "Error loading player: Offline playback not supported"));
} else {
dispatchEvent(new ErrorEvent(ErrorEvent.ERROR, false, false, "Error loading player: Could not load player configuration"));
}
}Ok, So it would appear there are copies of the JWPlayer Subversion repository floating around which show how configs are loaded in via RootReference. So in theory its just a question of putting this back in and rebuilding the player.swf. Might be nice to pull remote JSON instead of XML configs which would make things a bit more secure.
/**
* @return
* @throws Error if something bad happens.
*/
public function loadConfig():void {
loadCookies();
if (this.xmlConfig) {
loadXML(this.xmlConfig);
} else {
loadFlashvars(RootReference.root.loaderInfo.parameters);
}
}
/** Whether the "config" flashvar is set **/
public function get xmlConfig():String {
return RootReference.root.loaderInfo.parameters['config'];
}
/**
* Loads a config block from an XML file
* @param url The location of the config file. Can be absolute URL or path relative to the player SWF.
*/
public function loadXML(url:String):void {
var xmlLoader:URLLoader = new URLLoader();
xmlLoader.addEventListener(IOErrorEvent.IO_ERROR, xmlFail);
xmlLoader.addEventListener(SecurityErrorEvent.SECURITY_ERROR, xmlFail);
xmlLoader.addEventListener(Event.COMPLETE, loadComplete);
xmlLoader.load(new URLRequest(url));
}
/**
* Loads configuration flashvars
* @param params Hash map containing key/value pairs
*/
public function loadFlashvars(params:Object):void {
try {
for (var param:String in params) {
setConfigParam(param, params[param]);
}
dispatchEvent(new Event(Event.COMPLETE));
} catch (e:Error) {
dispatchEvent(new ErrorEvent(ErrorEvent.ERROR, false, false, e.message));
}
}