#41 fix the issue.

11.27.2020 by hhyeok1026

YoutubeExtractor/app/src/main/java/com/naveed/ytextractor/YoutubeStreamExtractor.java

@@ -34,7 +34,9 @@ public class YoutubeStreamExtractor extends AsyncTask<String,Void,Void>
 	String regexYtshortLink="(http|https)://(www\\.|)youtu.be/.*";
 	String regexPageLink = ("(http|https)://(www\\.|m.|)youtube\\.com/watch\\?v=(.+?)( |\\z|&)");
 	String regexFindReason="(?<=(class=\"message\">)).*?(?=<)";
-	String regexPlayerJson="(?<=ytplayer.config\\s=).*?((\\}(\n|)\\}(\n|))|(\\}))(?=;)";
+
+	String regexPlayerJson1="(?<=ytplayer.config\\s=).*?((\\}(\n|)\\}(\n|))|(\\}))(?=;)"; //original
+	String regexPlayerJson2="(?<=ytInitialPlayerResponse\\s=).*?(\\}(\\]|\\})\\})(?=;)";  //11.23.2020 After YouTube changes	
 	String PlayerBaseRegex="(?<=PLAYER_JS_URL\":\").*?(?=\")";
 	ExtractorListner listener;
 	private ExtractorException Ex;
@@ -43,10 +45,8 @@ public class YoutubeStreamExtractor extends AsyncTask<String,Void,Void>
 	private Response response;
 	private YoutubeMeta ytmeta;
 
-
-
-
-
+	PlayerResponse playerResponse;
+	private int selectedRegrexPlayerJson = 0; //Flag to check the selected regexPlayerJson variable
 
 	public YoutubeStreamExtractor(ExtractorListner EL)
 	{
@@ -122,9 +122,15 @@ protected Void doInBackground(String[] ids)
 			String body = HTTPUtility.downloadPageSource("https://www.youtube.com/watch?v=" + Videoid + "&has_verified=1&bpctr=9999999999", Headers);
 			jsonBody = parsePlayerConfig(body);
 
+			if(selectedRegrexPlayerJson == 1){
+				playerResponse = parseJson1(jsonBody);
+				playerResponse.setPlayerJs(RegexUtils.matchGroup(PlayerBaseRegex, body));
+			}else if(selectedRegrexPlayerJson == 2){
+				playerResponse = parseJson2(jsonBody);
+				playerResponse.setPlayerJs(RegexUtils.matchGroup(PlayerBaseRegex, body));
+			}//else - When the situation comes, parsePlayerConfig() already throws an error.
 
-			PlayerResponse playerResponse=parseJson(jsonBody);
-			response.setPlayerJs(RegexUtils.matchGroup(PlayerBaseRegex, body));
+
 			ytmeta = playerResponse.getVideoDetails();
 			subtitle = playerResponse.getCaptions() != null ? playerResponse .getCaptions().getPlayerCaptionsTracklistRenderer().getCaptionTracks(): null;
 			//Utils.copyToBoard(jsonBody);
@@ -155,13 +161,19 @@ protected Void doInBackground(String[] ids)
 	}
 
 	/*this function creates Json models using Gson*/
-	private PlayerResponse parseJson(String body) throws Exception
+	private PlayerResponse parseJson1(String body) throws Exception
 	{
 		JsonParser parser=new JsonParser();
 		response = new GsonBuilder().serializeNulls().create().fromJson(parser.parse(body), Response.class);
 		return new GsonBuilder().serializeNulls().create().fromJson(response.getArgs().getPlayerResponse(), PlayerResponse.class);
 	}
 
+	private PlayerResponse parseJson2(String body) throws Exception {
+		JsonParser parser=new JsonParser();
+
+
+		return new GsonBuilder().serializeNulls().create().fromJson(parser.parse(body), PlayerResponse.class);
+	}
 	/*This function is used to check if webpage contain steam data and then gets the Json part of from the page using regex*/
 	private String parsePlayerConfig(String body) throws ExtractorException
 	{
@@ -170,12 +182,16 @@ private String parsePlayerConfig(String body) throws ExtractorException
 		{
 			throw new ExtractorException(RegexUtils.matchGroup(regexFindReason, body));
 		}
-		if (body.contains("ytplayer.config"))
-		{
-			return RegexUtils.matchGroup(regexPlayerJson, body);
+		if(RegexUtils.matchGroup(regexPlayerJson1, body) != null){
+			selectedRegrexPlayerJson = 1;
+			return RegexUtils.matchGroup(regexPlayerJson1, body);
+		}else if(RegexUtils.matchGroup(regexPlayerJson2, body) != null){
+			selectedRegrexPlayerJson = 2;
+			return RegexUtils.matchGroup(regexPlayerJson2, body);
 		}
 		else
 		{
+			selectedRegrexPlayerJson = 3;
 			throw new ExtractorException("This Video is unavialable");
 		}
 	}
@@ -206,7 +222,7 @@ private List<YTMedia> parseUrls(YTMedia[] rawMedia)
 
 						if (partCipher.startsWith("s="))
 						{
-							decodedSig = CipherManager.dechiperSig(URLDecoder.decode(partCipher.replace("s=", "")), response.getPlayerJs());
+							decodedSig = CipherManager.dechiperSig(URLDecoder.decode(partCipher.replace("s=", "")), playerResponse.getPlayerJs());
 						}
 
 						if (partCipher.startsWith("url="))
@@ -217,7 +233,7 @@ private List<YTMedia> parseUrls(YTMedia[] rawMedia)
 							{
 								if (url_part.startsWith("s="))
 								{
-									decodedSig = CipherManager.dechiperSig(URLDecoder.decode(url_part.replace("s=", "")), response.getPlayerJs());
+									decodedSig = CipherManager.dechiperSig(URLDecoder.decode(partCipher.replace("s=", "")), playerResponse.getPlayerJs());
 								}
 							}
 						}

YoutubeExtractor/app/src/main/java/com/naveed/ytextractor/model/PlayerResponse.java

@@ -6,6 +6,20 @@ public class PlayerResponse {
 	private StreamingData streamingData;
 	private YoutubeMeta videoDetails;
 	private Captions captions;
+	private String playerJs;
+
+	public void setPlayerJs(String playerJs){
+		this.playerJs = playerJs;
+	}
+
+	public String getPlayerJs(){
+		if( playerJs.startsWith("http") && playerJs.contains("youtube.com") ){
+			return playerJs.replace("\\", "");
+		}
+		else{
+			return "https://www.youtube.com" + playerJs.replace("\\", "");
+		}
+	}
 
 	public void setCaptions(Captions captions) {
 		this.captions = captions;