Package se.despotify.client.protocol.channel

Examples of se.despotify.client.protocol.channel.Channel

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   * with AES key provided and a static IV, incremented for
   * each 16 byte data processed.
   */
  public void sendSubstreamRequest(ChannelListener listener, Track track, int offset, int length) throws DespotifyException {
    /* Create channel and buffer. */
    Channel    channel = new Channel("Substream-Channel", Channel.Type.TYPE_SUBSTREAM, listener);
    ByteBuffer buffer  = ByteBuffer.allocate(2 + 2 + 2 + 2 + 2 + 2 + 4 + 20 + 4 + 4);

    /* Append channel id. */
    buffer.putShort((short)channel.getId());

    /* Unknown 10 bytes. */
    buffer.putShort((short)0x0800);
    buffer.putShort((short)0x0000);
    buffer.putShort((short)0x0000);
 
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  /* Change playlist. The response comes as plain XML. */
  public void sendChangePlaylist(ChannelListener listener, Playlist playlist, String xml, String packetDescription) throws DespotifyException {
    /* Create channel and buffer. */
    Channel    channel  = new Channel("Change-Playlist-Channel", Channel.Type.TYPE_PLAYLIST, listener);
    byte[]     xmlBytes = xml.getBytes();
    ByteBuffer buffer   = ByteBuffer.allocate(2 + 17 + 4 + 4 + 4 + 1 + 1 + xmlBytes.length);

    /* Append channel id, playlist id and some bytes... */
    buffer.putShort((short)channel.getId());
    buffer.put(playlist.getUUID()); /* 16 bytes */
    buffer.put((byte)0x00); // 0x00 for adding tracks, 0x02 for the rest?
    buffer.putInt(playlist.getRevision().intValue());
    buffer.putInt(playlist.getTracks().size());
    buffer.putInt(playlist.getChecksum().intValue()); /* -1: Create playlist. */
 
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    ChannelCallback callback = new ChannelCallback();

    /* Send browse request. */

    /* Create channel and buffer. */
    Channel channel = new Channel("Browse-Channel", Channel.Type.TYPE_BROWSE, callback);
    ByteBuffer buffer = ByteBuffer.allocate(2 + 1 + 16 + 4);


    buffer.putShort((short) channel.getId());
    buffer.put((byte) BrowseType.artist.getValue());
    buffer.put(artist.getByteUUID());
    buffer.putInt(0); // unknown


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    ChannelCallback callback = new ChannelCallback();

    /* Send browse request. */

    /* Create channel and buffer. */
    Channel channel = new Channel("Browse-Channel", Channel.Type.TYPE_BROWSE, callback);
    ByteBuffer buffer = ByteBuffer.allocate(2 + 1 + 16 + 4);


    buffer.putShort((short) channel.getId());
    buffer.put((byte) BrowseType.album.getValue());
    buffer.put(album.getByteUUID());
    buffer.putInt(0); // unknown


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    ChannelCallback callback = new ChannelCallback();

    byte[] utf8Bytes = query.getBytes(Charset.forName("UTF8"));

    /* Create channel and buffer. */
    Channel channel = new Channel("Search-Channel", Channel.Type.TYPE_SEARCH, callback);
    ByteBuffer buffer = ByteBuffer.allocate(2 + 4 + 4 + 2 + 1 + utf8Bytes.length);

    /* Check offset and limit. */
    if (offset < 0) {
      throw new IllegalArgumentException("Offset needs to be >= 0");
    }
//    else if ((maxResults < 0 && maxResults != -1) || maxResults == 0) {
//      throw new IllegalArgumentException("Limit needs to be either -1 for no limit or > 0");
//    }

    /* Append channel id, some values, query length and query. */
    buffer.putShort((short) channel.getId());
    buffer.putInt(offset); /* Result offset. */
    buffer.putInt(maxResults); /* Reply limit. */
    buffer.putShort((short) 0x0000);
    buffer.put((byte) utf8Bytes.length);
    buffer.put(utf8Bytes);
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    ChannelCallback callback = new ChannelCallback();

    /* Send browse request. */

    /* Create channel and buffer. */
    Channel channel = new Channel("Browse-Channel", Channel.Type.TYPE_BROWSE, callback);
    ByteBuffer buffer = ByteBuffer.allocate(2 + 1 + tracks.length * 16); //+ ((type == BrowseType.artist || type == BrowseType.album)?4:0));

//    if(ids.size() > 1 && type != BrowseType.track){
//      throw new IllegalArgumentException("Only BrowserType.track accepts multiple ids.");
//    }

    /* Append channel id and type. */
    buffer.putShort((short) channel.getId());
    buffer.put((byte)BrowseType.track.getValue());

    /* Append (16 byte) ids. */
    for (Track track : tracks) {
      buffer.put(Arrays.copyOfRange(track.getByteUUID(), 0, 16));
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  @Override
  public Boolean send(Connection connection) throws DespotifyException {

    ChannelCallback callback = new ChannelCallback();

    Channel channel = new Channel("Playlist-Channel", Channel.Type.TYPE_PLAYLIST, callback);
    ByteBuffer buffer  = ByteBuffer.allocate(2 + 16 + 1 + 4 + 4 + 4 + 1);

    buffer.putShort((short)channel.getId()); // channel id
    buffer.put(Hex.toBytes("00000000000000000000000000000000")); // uuid? not used
    buffer.put((byte)0x00); // unknown
    buffer.putInt(-1); // playlist history. -1: current. 0: changes since version 0, 1: since version 1, etc.
    buffer.putInt(0);  // unknown
    buffer.putInt(-1); // unknown
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    /* Create channel callback */
    ChannelCallback callback = new ChannelCallback();

    /* Create channel and buffer. */
    Channel channel = new Channel("Change-Playlist-Channel", Channel.Type.TYPE_PLAYLIST, callback);
    byte[] xmlBytes = xml.getBytes();
    ByteBuffer buffer = ByteBuffer.allocate(2 + 17 + 4 + 4 + 4 + 1 + 1 + xmlBytes.length);

    /* Append channel id, playlist id and some bytes... */
    buffer.putShort((short) channel.getId());
    buffer.put(playlist.getByteUUID()); /* 16 bytes */
    buffer.put((byte) 0x00); // 0x00 for adding tracks, 0x02 for the rest?
    buffer.putInt(playlist.getRevision().intValue());
    buffer.putInt(playlist.getTracks().size());
    buffer.putInt(playlist.getChecksum().intValue()); /* -1: Create playlist. */
 
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    /* Create channel callback */
    ChannelCallback callback = new ChannelCallback();

    /* Create channel and buffer. */
    Channel channel  = new Channel("Change-Playlist-Channel", Channel.Type.TYPE_PLAYLIST, callback);
    byte[]     xmlBytes = xml.getBytes();
    ByteBuffer buffer   = ByteBuffer.allocate(2 + 17 + 4 + 4 + 4 + 1 + 1 + xmlBytes.length);

    /* Append channel id, playlist id and some bytes... */
    buffer.putShort((short)channel.getId());
    buffer.put(playlist.getByteUUID()); /* 16 bytes */
    buffer.put((byte)0x00); // 0x00 for adding tracks, 0x02 for the rest?
    buffer.putInt(playlist.getRevision().intValue());
    buffer.putInt(playlist.getTracks().size());
    buffer.putInt(playlist.getChecksum().intValue()); /* -1: Create playlist. */
 
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    }

    ChannelCallback callback = new ChannelCallback();

    /* Create channel and buffer. */
    Channel channel = new Channel("Create-Playlist-Channel", Channel.Type.TYPE_PLAYLIST, callback);

    if (user.getPlaylists() == null) {
      log.warn("user playlists not loaded yet! should it be? loading..");
      new LoadUserPlaylists(store, user).send(connection);
    }
    PlaylistContainer playlists = user.getPlaylists();

    playlists.getItems().add(playlist);

    int position = playlists.getItems().size() - 1;

    String xml = String.format
        ("<change><ops><add><i>%s</i><items>%s</items></add></ops><time>%s</time><user>%s</user></change>" +
            "<version>%010d,%010d,%010d,%d</version>",
            // change
            position,
            Hex.toHex(playlist.getByteUUID()) + "02",
            new Date().getTime() / 1000,
            user.getId(),
            // version
            playlists.getRevision() + 1,         // new revision of user playlists
            playlists.getItems().size(),         // new size of user playlists
            playlists.calculateChecksum(),       // new checksum of user playlists
            playlist.isCollaborative() ? 1 : 0
        );

    byte[] xmlBytes = xml.getBytes();
    ByteBuffer buffer = ByteBuffer.allocate(2 + 16 + 1 + 4 + 4 + 4 + 1 + 1 + xmlBytes.length);

    buffer.putShort((short) channel.getId());
    buffer.put(Hex.toBytes("00000000000000000000000000000000")); // UUID? not used
    buffer.put((byte) 0x00); // type? not used
    buffer.putInt((int) playlists.getRevision()); // previous revision of user playlists
    buffer.putInt(position);
    buffer.putInt((int) playlists.getChecksum()); // previous checksum of user playlists
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Related Classes of se.despotify.client.protocol.channel.Channel

  • se.despotify.client.player.cache.SubstreamCache
  • se.despotify.client.protocol.command.LoadImage
  • se.despotify.client.protocol.command.media.LoadAlbum
  • se.despotify.client.protocol.command.media.LoadArtist
  • se.despotify.client.protocol.command.media.LoadTracks
  • se.despotify.client.protocol.command.media.playlist.AddTrackToPlaylist
  • se.despotify.client.protocol.command.media.playlist.CreatePlaylistWithReservedUUID
  • se.despotify.client.protocol.command.media.playlist.LoadPlaylist
  • se.despotify.client.protocol.command.media.playlist.LoadUserPlaylists
  • se.despotify.client.protocol.command.media.playlist.RemovePlaylistFromUser
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