[YouTube] Update DASH manifest creation clients' handling

- Use POST requests with the same body as official clients do;
- Update methods checking the client streaming URLs come from:
  - Replace TVHTML5_SIMPLY_EMBEDDED_PLAYER by TVHTML5;
  - Add WEB_EMBEDDED_PLAYER.

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeParsingHelper.java

@@ -180,8 +180,10 @@ public final class YoutubeParsingHelper {
             "https://www.youtube.com/feeds/videos.xml?channel_id=";
     private static final String FEED_BASE_USER = "https://www.youtube.com/feeds/videos.xml?user=";
     private static final Pattern C_WEB_PATTERN = Pattern.compile("&c=WEB");
-    private static final Pattern C_TVHTML5_SIMPLY_EMBEDDED_PLAYER_PATTERN =
+    private static final Pattern C_WEB_EMBEDDED_PLAYER_PATTERN =
-            Pattern.compile("&c=TVHTML5_SIMPLY_EMBEDDED_PLAYER");
+            Pattern.compile("&c=WEB_EMBEDDED_PLAYER");
+    private static final Pattern C_TVHTML5_PLAYER_PATTERN =
+            Pattern.compile("&c=TVHTML5");
     private static final Pattern C_ANDROID_PATTERN = Pattern.compile("&c=ANDROID");
     private static final Pattern C_IOS_PATTERN = Pattern.compile("&c=IOS");
 
@@ -1394,15 +1396,24 @@ public final class YoutubeParsingHelper {
     }
 
     /**
-     * Check if the streaming URL is a URL from the YouTube {@code TVHTML5_SIMPLY_EMBEDDED_PLAYER}
+     * Check if the streaming URL is from the YouTube {@code WEB_EMBEDDED_PLAYER} client.
-     * client.
      *
-     * @param url the streaming URL on which check if it's a {@code TVHTML5_SIMPLY_EMBEDDED_PLAYER}
+     * @param url the streaming URL to be checked.
-     *            streaming URL.
+     * @return true if it's a {@code WEB_EMBEDDED_PLAYER} streaming URL, false otherwise
-     * @return true if it's a {@code TVHTML5_SIMPLY_EMBEDDED_PLAYER} streaming URL, false otherwise
      */
-    public static boolean isTvHtml5SimplyEmbeddedPlayerStreamingUrl(@Nonnull final String url) {
+    public static boolean isWebEmbeddedPlayerStreamingUrl(@Nonnull final String url) {
-        return Parser.isMatch(C_TVHTML5_SIMPLY_EMBEDDED_PLAYER_PATTERN, url);
+        return Parser.isMatch(C_WEB_EMBEDDED_PLAYER_PATTERN, url);
+    }
+
+    /**
+     * Check if the streaming URL is a URL from the YouTube {@code TVHTML5} client.
+     *
+     * @param url the streaming URL on which check if it's a {@code TVHTML5}
+     *            streaming URL.
+     * @return true if it's a {@code TVHTML5} streaming URL, false otherwise
+     */
+    public static boolean isTvHtml5StreamingUrl(@Nonnull final String url) {
+        return Parser.isMatch(C_TVHTML5_PLAYER_PATTERN, url);
     }
 
     /**

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/dashmanifestcreators/YoutubeDashManifestCreatorsUtils.java

@@ -5,8 +5,9 @@ import static org.schabi.newpipe.extractor.services.youtube.YoutubeParsingHelper
 import static org.schabi.newpipe.extractor.services.youtube.YoutubeParsingHelper.getIosUserAgent;
 import static org.schabi.newpipe.extractor.services.youtube.YoutubeParsingHelper.isAndroidStreamingUrl;
 import static org.schabi.newpipe.extractor.services.youtube.YoutubeParsingHelper.isIosStreamingUrl;
-import static org.schabi.newpipe.extractor.services.youtube.YoutubeParsingHelper.isTvHtml5SimplyEmbeddedPlayerStreamingUrl;
+import static org.schabi.newpipe.extractor.services.youtube.YoutubeParsingHelper.isTvHtml5StreamingUrl;
 import static org.schabi.newpipe.extractor.services.youtube.YoutubeParsingHelper.isWebStreamingUrl;
+import static org.schabi.newpipe.extractor.services.youtube.YoutubeParsingHelper.isWebEmbeddedPlayerStreamingUrl;
 import static org.schabi.newpipe.extractor.utils.Utils.isNullOrEmpty;
 
 import org.schabi.newpipe.extractor.MediaFormat;
@@ -582,8 +583,8 @@ public final class YoutubeDashManifestCreatorsUtils {
      * This method fetches, for OTF streams and for post-live-DVR streams:
      *     <ul>
      *         <li>the base URL of the stream, to which are appended {@link #SQ_0} and
-     *         {@link #RN_0} parameters, with a {@code GET} request for streaming URLs from HTML5
+     *         {@link #RN_0} parameters, with a {@code POS} request for streaming URLs from
-     *         clients and a {@code POST} request for the ones from the {@code ANDROID} and the
+     *         {@code WEB}, {@code TVHTML5}, {@code WEB_EMBEDDED_PLAYER}, {@code ANDROID} and
      *         {@code IOS} clients;</li>
      *         <li>for streaming URLs from HTML5 clients, the {@link #ALR_YES} param is also added.
      *         </li>
@@ -602,7 +603,8 @@ public final class YoutubeDashManifestCreatorsUtils {
                                                      final DeliveryType deliveryType)
             throws CreationException {
         final boolean isHtml5StreamingUrl = isWebStreamingUrl(baseStreamingUrl)
-                || isTvHtml5SimplyEmbeddedPlayerStreamingUrl(baseStreamingUrl);
+                || isTvHtml5StreamingUrl(baseStreamingUrl)
+                || isWebEmbeddedPlayerStreamingUrl(baseStreamingUrl);
         final boolean isAndroidStreamingUrl = isAndroidStreamingUrl(baseStreamingUrl);
         final boolean isIosStreamingUrl = isIosStreamingUrl(baseStreamingUrl);
         if (isHtml5StreamingUrl) {
@@ -748,7 +750,8 @@ public final class YoutubeDashManifestCreatorsUtils {
             int redirectsCount = 0;
             while (!responseMimeType.equals(responseMimeTypeExpected)
                     && redirectsCount < MAXIMUM_REDIRECT_COUNT) {
-                final Response response = downloader.get(streamingUrl, headers);
+                final byte[] html5Body = new byte[] {0x78, 0};
+                final Response response = downloader.post(streamingUrl, headers, html5Body);
 
                 final int responseCode = response.responseCode();
                 if (responseCode != 200) {