Add Icecast2 sink.
authorDavid ‘Bombe’ Roden <bombe@pterodactylus.net>
Sat, 16 Mar 2013 11:33:28 +0000 (12:33 +0100)
committerDavid ‘Bombe’ Roden <bombe@pterodactylus.net>
Sat, 16 Mar 2013 11:33:28 +0000 (12:33 +0100)
src/main/java/net/pterodactylus/sonitus/data/sink/Icecast2Sink.java [new file with mode: 0644]

diff --git a/src/main/java/net/pterodactylus/sonitus/data/sink/Icecast2Sink.java b/src/main/java/net/pterodactylus/sonitus/data/sink/Icecast2Sink.java
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+/*
+ * Sonitus - Icecast2Sink.java - Copyright © 2013 David Roden
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package net.pterodactylus.sonitus.data.sink;
+
+import static com.google.common.base.Preconditions.*;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.UnsupportedEncodingException;
+import java.net.Socket;
+import java.util.logging.Logger;
+
+import net.pterodactylus.sonitus.data.ConnectException;
+import net.pterodactylus.sonitus.data.Connection;
+import net.pterodactylus.sonitus.data.Format;
+import net.pterodactylus.sonitus.data.Sink;
+import net.pterodactylus.sonitus.data.Source;
+import net.pterodactylus.sonitus.io.InputStreamDrainer;
+
+import com.google.common.io.BaseEncoding;
+import com.google.common.io.Closeables;
+
+/**
+ * {@link Sink} implementation that delivers all incoming data to an Icecast2
+ * server.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+public class Icecast2Sink implements Sink {
+
+       /** The logger. */
+       private static final Logger logger = Logger.getLogger(Icecast2Sink.class.getName());
+
+       /** The server name. */
+       private final String server;
+
+       /** The port number on the server. */
+       private final int port;
+
+       /** The source password. */
+       private final String password;
+
+       /** The stream mount point (without leading slash). */
+       private final String mountPoint;
+
+       /** The name of the server. */
+       private final String serverName;
+
+       /** The description of the server. */
+       private final String serverDescription;
+
+       /** The genre of the server. */
+       private final String genre;
+
+       /** Whether to publish the server. */
+       private final boolean publishServer;
+
+       /**
+        * Creates a new Icecast2 sink.
+        *
+        * @param server
+        *              The hostname of the server
+        * @param port
+        *              The port number of the server
+        * @param password
+        *              The source password
+        * @param mountPoint
+        *              The stream mount point
+        * @param serverName
+        *              The name of the server
+        * @param serverDescription
+        *              The description of the server
+        * @param genre
+        *              The genre of the server
+        * @param publishServer
+        *              {@code true} to publish the server in a public directory, {@code false} to
+        *              not publish it
+        */
+       public Icecast2Sink(String server, int port, String password, String mountPoint, String serverName, String serverDescription, String genre, boolean publishServer) {
+               this.server = server;
+               this.port = port;
+               this.password = password;
+               this.mountPoint = mountPoint;
+               this.serverName = serverName;
+               this.serverDescription = serverDescription;
+               this.genre = genre;
+               this.publishServer = publishServer;
+       }
+
+       //
+       // SINK METHODS
+       //
+
+       @Override
+       public void connect(Source source) throws ConnectException {
+               checkNotNull(source, "source must not be null");
+
+               try {
+                       logger.info(String.format("Icecast2Sink: Connecting to %s:%d...", server, port));
+                       final Socket socket = new Socket(server, port);
+                       logger.info("Icecast2Sink: Connected.");
+                       final OutputStream socketOutputStream = socket.getOutputStream();
+                       final InputStream socketInputStream = socket.getInputStream();
+
+                       sendLine(socketOutputStream, String.format("SOURCE /%s ICE/1.0", mountPoint));
+                       sendLine(socketOutputStream, String.format("Authorization: Basic %s", generatePassword(password)));
+                       sendLine(socketOutputStream, String.format("Content-Type: %s", getContentType(source.format())));
+                       sendLine(socketOutputStream, String.format("ICE-Name: %s", serverName));
+                       sendLine(socketOutputStream, String.format("ICE-Description: %s", serverDescription));
+                       sendLine(socketOutputStream, String.format("ICE-Genre: %s", genre));
+                       sendLine(socketOutputStream, String.format("ICE-Public: %d", publishServer ? 1 : 0));
+                       sendLine(socketOutputStream, "");
+                       socketOutputStream.flush();
+
+                       new Thread(new InputStreamDrainer(socketInputStream)).start();
+                       new Thread(new Connection(source) {
+
+                               private long counter;
+
+                               @Override
+                               protected int bufferSize() {
+                                       return 4096;
+                               }
+
+                               @Override
+                               protected void feed(byte[] buffer) throws IOException {
+                                       socketOutputStream.write(buffer);
+                                       socketOutputStream.flush();
+                                       counter += buffer.length;
+                                       logger.finest(String.format("Wrote %d Bytes.", counter));
+                               }
+
+                               @Override
+                               protected void finish() throws IOException {
+                                       Closeables.close(socketOutputStream, true);
+                                       Closeables.close(socket, true);
+                               }
+                       }).start();
+               } catch (IOException ioe1) {
+                       throw new ConnectException(ioe1);
+               }
+       }
+
+       //
+       // PRIVATE METHODS
+       //
+
+       /**
+        * Sends the given line, followed by CR+LF, to the given output stream,
+        * encoding the complete line as UTF-8.
+        *
+        * @param outputStream
+        *              The output stream to send the line to
+        * @param line
+        *              The line to send
+        * @throws IOException
+        *              if an I/O error occurs
+        */
+       private static void sendLine(OutputStream outputStream, String line) throws IOException {
+               outputStream.write((line + "\r\n").getBytes("UTF-8"));
+       }
+
+       /**
+        * Generates the Base64-encoded authorization information from the given
+        * password. A fixed username of “source” is used.
+        *
+        * @param password
+        *              The password to encode
+        * @return The encoded password
+        * @throws UnsupportedEncodingException
+        *              if the UTF-8 encoding is not supported (which can never happen)
+        */
+       private static String generatePassword(String password) throws UnsupportedEncodingException {
+               return BaseEncoding.base64().encode(("source:" + password).getBytes("UTF-8"));
+       }
+
+       /**
+        * Returns a MIME type for the given format. Currently only Vorbis, MP3, and
+        * PCM formats are recognized.
+        *
+        * @param format
+        *              The format to get a MIME type for
+        * @return The MIME type of the format
+        */
+       private static String getContentType(Format format) {
+               switch (format.encoding().toUpperCase()) {
+                       case "VORBIS":
+                               return "audio/ogg";
+                       case "MP3":
+                               return "audio/mpeg";
+                       case "PCM":
+                               return "audio/vnd.wave";
+                       default:
+                               return "application/octet-stream";
+               }
+       }
+
+}