X-Git-Url: http://git.nikiroo.be/?p=fanfix.git;a=blobdiff_plain;f=src%2Fbe%2Fnikiroo%2Futils%2Fserial%2Fserver%2FServerBridge.java;fp=src%2Fbe%2Fnikiroo%2Futils%2Fserial%2Fserver%2FServerBridge.java;h=0000000000000000000000000000000000000000;hp=0b734c6bbd6ca105b852406b2a97ec64ee71b589;hb=46add0670fdee4bd936a13fe2448c5e20a7ffd0a;hpb=1b5197ed4ceec2025a9a40c417b37c646b756138 diff --git a/src/be/nikiroo/utils/serial/server/ServerBridge.java b/src/be/nikiroo/utils/serial/server/ServerBridge.java deleted file mode 100644 index 0b734c6..0000000 --- a/src/be/nikiroo/utils/serial/server/ServerBridge.java +++ /dev/null @@ -1,292 +0,0 @@ -package be.nikiroo.utils.serial.server; - -import java.io.ByteArrayInputStream; -import java.io.IOException; -import java.io.InputStream; -import java.lang.reflect.Array; -import java.net.Socket; -import java.net.UnknownHostException; - -import be.nikiroo.utils.StringUtils; -import be.nikiroo.utils.TraceHandler; -import be.nikiroo.utils.Version; -import be.nikiroo.utils.serial.Importer; - -/** - * This class implements a simple server that can bridge two other - * {@link Server}s. - *

- * It can, of course, inspect the data that goes through it (by default, it - * prints traces of the data). - *

- * Note: this {@link ServerBridge} has to be discarded after use (cannot be - * started twice). - * - * @author niki - */ -public class ServerBridge extends Server { - private final String forwardToHost; - private final int forwardToPort; - private final String forwardToKey; - - /** - * Create a new server that will start listening on the network when - * {@link ServerBridge#start()} is called. - * - * @param port - * the port to listen on, or 0 to assign any unallocated port - * found (which can later on be queried via - * {@link ServerBridge#getPort()} - * @param key - * an optional key to encrypt all the communications (if NULL, - * everything will be sent in clear text) - * @param forwardToHost - * the host server to forward the calls to - * @param forwardToPort - * the host port to forward the calls to - * @param forwardToKey - * an optional key to encrypt all the communications (if NULL, - * everything will be sent in clear text) - * - * @throws IOException - * in case of I/O error - * @throws UnknownHostException - * if the IP address of the host could not be determined - * @throws IllegalArgumentException - * if the port parameter is outside the specified range of valid - * port values, which is between 0 and 65535, inclusive - */ - public ServerBridge(int port, String key, String forwardToHost, - int forwardToPort, String forwardToKey) throws IOException { - super(port, key); - this.forwardToHost = forwardToHost; - this.forwardToPort = forwardToPort; - this.forwardToKey = forwardToKey; - } - - /** - * Create a new server that will start listening on the network when - * {@link ServerBridge#start()} is called. - * - * @param name - * the server name (only used for debug info and traces) - * @param port - * the port to listen on - * @param key - * an optional key to encrypt all the communications (if NULL, - * everything will be sent in clear text) - * @param forwardToHost - * the host server to forward the calls to - * @param forwardToPort - * the host port to forward the calls to - * @param forwardToKey - * an optional key to encrypt all the communications (if NULL, - * everything will be sent in clear text) use an SSL connection - * for the forward server or not - * - * @throws IOException - * in case of I/O error - * @throws UnknownHostException - * if the IP address of the host could not be determined - * @throws IllegalArgumentException - * if the port parameter is outside the specified range of valid - * port values, which is between 0 and 65535, inclusive - */ - public ServerBridge(String name, int port, String key, - String forwardToHost, int forwardToPort, String forwardToKey) - throws IOException { - super(name, port, key); - this.forwardToHost = forwardToHost; - this.forwardToPort = forwardToPort; - this.forwardToKey = forwardToKey; - } - - /** - * The traces handler for this {@link Server}. - *

- * The trace levels are handled as follow: - *

- * - * @param tracer - * the new traces handler - */ - @Override - public void setTraceHandler(TraceHandler tracer) { - super.setTraceHandler(tracer); - } - - @Override - protected ConnectActionServer createConnectActionServer(Socket s) { - // Bad impl, not up to date (should work, but not efficient) - return new ConnectActionServerString(s, key) { - @Override - public void action(Version clientVersion) throws Exception { - onClientContact(clientVersion); - final ConnectActionServerString bridge = this; - - try { - new ConnectActionClientString(forwardToHost, forwardToPort, - forwardToKey) { - @Override - public void action(Version serverVersion) - throws Exception { - onServerContact(serverVersion); - - for (String fromClient = bridge.rec(); fromClient != null; fromClient = bridge - .rec()) { - onRec(fromClient); - String fromServer = send(fromClient); - onSend(fromServer); - bridge.send(fromServer); - } - - getTraceHandler().trace("=== DONE", 1); - getTraceHandler().trace("", 1); - } - - @Override - protected void onError(Exception e) { - ServerBridge.this.onError(e); - } - }.connect(); - } catch (Exception e) { - ServerBridge.this.onError(e); - } - } - }; - } - - /** - * This is the method that is called each time a client contact us. - */ - protected void onClientContact(Version clientVersion) { - getTraceHandler().trace(">>> CLIENT " + clientVersion); - } - - /** - * This is the method that is called each time a client contact us. - */ - protected void onServerContact(Version serverVersion) { - getTraceHandler().trace("<<< SERVER " + serverVersion); - getTraceHandler().trace(""); - } - - /** - * This is the method that is called each time a client contact us. - * - * @param data - * the data sent by the client - */ - protected void onRec(String data) { - trace(">>> CLIENT", data); - } - - /** - * This is the method that is called each time the forwarded server contact - * us. - * - * @param data - * the data sent by the client - */ - protected void onSend(String data) { - trace("<<< SERVER", data); - } - - @Override - protected ConnectActionClient getConnectionToMe() - throws UnknownHostException, IOException { - return new ConnectActionClientString(new Socket((String) null, - getPort()), key); - } - - @Override - public void run() { - getTraceHandler().trace( - getName() + ": will forward to " + forwardToHost + ":" - + forwardToPort + " (" - + (forwardToKey != null ? "encrypted" : "plain text") - + ")"); - super.run(); - } - - /** - * Trace the data with the given prefix. - * - * @param prefix - * the prefix (client, server, version...) - * @param data - * the data to trace - */ - private void trace(String prefix, String data) { - int size = data == null ? 0 : data.length(); - String ssize = StringUtils.formatNumber(size) + "bytes"; - - getTraceHandler().trace(prefix + ": " + ssize, 1); - - if (getTraceHandler().getTraceLevel() >= 2) { - try { - while (data.startsWith("ZIP:") || data.startsWith("B64:")) { - if (data.startsWith("ZIP:")) { - data = StringUtils.unzip64s(data.substring(4)); - } else if (data.startsWith("B64:")) { - data = StringUtils.unzip64s(data.substring(4)); - } - } - - InputStream stream = new ByteArrayInputStream( - StringUtils.getBytes(data)); - try { - Object obj = new Importer().read(stream).getValue(); - if (obj == null) { - getTraceHandler().trace("NULL", 2); - getTraceHandler().trace("NULL", 3); - getTraceHandler().trace("NULL", 4); - } else { - if (obj.getClass().isArray()) { - getTraceHandler().trace( - "(" + obj.getClass() + ") with " - + Array.getLength(obj) - + "element(s)", 3); - } else { - getTraceHandler().trace("(" + obj.getClass() + ")", - 2); - } - getTraceHandler().trace("" + obj.toString(), 3); - getTraceHandler().trace(data, 4); - } - } finally { - stream.close(); - } - } catch (NoSuchMethodException e) { - getTraceHandler().trace("(not an object)", 2); - getTraceHandler().trace(data, 3); - getTraceHandler().trace("", 4); - } catch (NoSuchFieldException e) { - getTraceHandler().trace( - "(incompatible: " + e.getMessage() + ")", 2); - getTraceHandler().trace(data, 3); - getTraceHandler().trace("", 4); - } catch (ClassNotFoundException e) { - getTraceHandler().trace( - "(unknown object: " + e.getMessage() + ")", 2); - getTraceHandler().trace(data, 3); - getTraceHandler().trace("", 4); - } catch (Exception e) { - getTraceHandler().trace( - "(decode error: " + e.getMessage() + ")", 2); - getTraceHandler().trace(data, 3); - getTraceHandler().trace("", 4); - } - - getTraceHandler().trace("", 2); - } - } -}