From 9d5951765ffc8d4d5099cfa6f2523a626214884b Mon Sep 17 00:00:00 2001
From: David <david.satiricon@gmail.com>
Date: Wed, 8 Jun 2016 12:35:54 -0300
Subject: [PATCH] Fix for #310

---
 .../schabi/newpipe/extractor/StreamInfo.java  | 20 +++++++++++--------
 .../extractor/StreamPreviewInfoCollector.java |  2 +-
 .../youtube/YoutubeStreamUrlIdHandler.java    | 13 ++++++++++--
 3 files changed, 24 insertions(+), 11 deletions(-)

diff --git a/app/src/main/java/org/schabi/newpipe/extractor/StreamInfo.java b/app/src/main/java/org/schabi/newpipe/extractor/StreamInfo.java
index cd7a51741..cd79e463f 100644
--- a/app/src/main/java/org/schabi/newpipe/extractor/StreamInfo.java
+++ b/app/src/main/java/org/schabi/newpipe/extractor/StreamInfo.java
@@ -230,15 +230,19 @@ public class StreamInfo extends AbstractVideoInfo {
         }
         try {
             // get next video
-            System.out.println(extractor.getUrlIdHandler());
-            StreamPreviewInfoCollector c = new StreamPreviewInfoCollector(
-                    extractor.getUrlIdHandler(), extractor.getServiceId());
-            c.commit(extractor.getNextVideo());
-            if(c.getItemList().size() != 0) {
-                streamInfo.next_video = c.getItemList().get(0);
+            if(streamInfo.next_video != null)
+            {
+                StreamPreviewInfoCollector c = new StreamPreviewInfoCollector(
+                        extractor.getUrlIdHandler(), extractor.getServiceId());
+                StreamPreviewInfoExtractor nextVideo = extractor.getNextVideo();
+                c.commit(nextVideo);
+                if(c.getItemList().size() != 0) {
+                    streamInfo.next_video = c.getItemList().get(0);
+                }
+                streamInfo.errors.addAll(c.getErrors());
             }
-            streamInfo.errors.addAll(c.getErrors());
-        } catch(Exception e) {
+        }
+        catch(Exception e) {
             streamInfo.addException(e);
         }
         try {
diff --git a/app/src/main/java/org/schabi/newpipe/extractor/StreamPreviewInfoCollector.java b/app/src/main/java/org/schabi/newpipe/extractor/StreamPreviewInfoCollector.java
index 7e100960c..df7291f71 100644
--- a/app/src/main/java/org/schabi/newpipe/extractor/StreamPreviewInfoCollector.java
+++ b/app/src/main/java/org/schabi/newpipe/extractor/StreamPreviewInfoCollector.java
@@ -56,7 +56,7 @@ public class StreamPreviewInfoCollector {
             resultItem.webpage_url = extractor.getWebPageUrl();
             if (urlIdHandler == null) {
                 throw new ParsingException("Error: UrlIdHandler not set");
-            } else {
+            } else if(!resultItem.webpage_url.isEmpty()) {
                 resultItem.id = (new YoutubeStreamUrlIdHandler()).getVideoId(resultItem.webpage_url);
             }
             resultItem.title = extractor.getTitle();
diff --git a/app/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeStreamUrlIdHandler.java b/app/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeStreamUrlIdHandler.java
index 998e93a51..cc95aa401 100644
--- a/app/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeStreamUrlIdHandler.java
+++ b/app/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeStreamUrlIdHandler.java
@@ -36,7 +36,11 @@ public class YoutubeStreamUrlIdHandler implements StreamUrlIdHandler {
 
     @SuppressWarnings("WeakerAccess")
     @Override
-    public String getVideoId(String url) throws ParsingException {
+    public String getVideoId(String url) throws ParsingException, IllegalArgumentException {
+        if(url.isEmpty())
+        {
+            throw new IllegalArgumentException("The url parameter should not be empty");
+        }
         String id;
 
         if(url.contains("youtube")) {
@@ -48,7 +52,12 @@ public class YoutubeStreamUrlIdHandler implements StreamUrlIdHandler {
                 } catch(UnsupportedEncodingException uee) {
                     throw new ParsingException("Could not parse attribution_link", uee);
                 }
-            } else {
+            }
+            else if(url.contains("vnd.youtube"))
+            {
+                id = Parser.matchGroup1("vnd.youtube\\:([\\-a-zA-Z0-9_]{11}).*", url);
+            }
+            else {
                 id = Parser.matchGroup1("[?&]v=([\\-a-zA-Z0-9_]{11})", url);
             }
         }