--- /dev/null
+/*
+ * jSite2 - FpcConnection.java -
+ * Copyright © 2008 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 2 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+package net.pterodactylus.fcp;
+
+import java.io.FilterInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.InetAddress;
+import java.net.Socket;
+import java.net.UnknownHostException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * An FCP connection to a Freenet node.
+ *
+ * @author David ‘Bombe’ Roden <bombe@freenetproject.org>
+ * @version $Id$
+ */
+public class FcpConnection {
+
+ /** The default port for FCP v2. */
+ public static final int DEFAULT_PORT = 9481;
+
+ /** The list of FCP listeners. */
+ private final List<FcpListener> fcpListeners = new ArrayList<FcpListener>();
+
+ /** The address of the node. */
+ private final InetAddress address;
+
+ /** The port number of the node’s FCP port. */
+ private final int port;
+
+ /** The remote socket. */
+ private Socket remoteSocket;
+
+ /** The input stream from the node. */
+ private InputStream remoteInputStream;
+
+ /** The output stream to the node. */
+ private OutputStream remoteOutputStream;
+
+ /** The connection handler. */
+ private FcpConnectionHandler connectionHandler;
+
+ /** Incoming message statistics. */
+ private Map<String, Integer> incomingMessageStatistics = Collections.synchronizedMap(new HashMap<String, Integer>());
+
+ /**
+ * Creates a new FCP connection to the freenet node running on localhost,
+ * using the default port.
+ *
+ * @throws UnknownHostException
+ * if the hostname can not be resolved
+ */
+ public FcpConnection() throws UnknownHostException {
+ this(InetAddress.getLocalHost());
+ }
+
+ /**
+ * Creates a new FCP connection to the Freenet node running on the given
+ * host, listening on the default port.
+ *
+ * @param host
+ * The hostname of the Freenet node
+ * @throws UnknownHostException
+ * if <code>host</code> can not be resolved
+ */
+ public FcpConnection(String host) throws UnknownHostException {
+ this(host, DEFAULT_PORT);
+ }
+
+ /**
+ * Creates a new FCP connection to the Freenet node running on the given
+ * host, listening on the given port.
+ *
+ * @param host
+ * The hostname of the Freenet node
+ * @param port
+ * The port number of the node’s FCP port
+ * @throws UnknownHostException
+ * if <code>host</code> can not be resolved
+ */
+ public FcpConnection(String host, int port) throws UnknownHostException {
+ this(InetAddress.getByName(host), port);
+ }
+
+ /**
+ * Creates a new FCP connection to the Freenet node running at the given
+ * address, listening on the default port.
+ *
+ * @param address
+ * The address of the Freenet node
+ */
+ public FcpConnection(InetAddress address) {
+ this(address, DEFAULT_PORT);
+ }
+
+ /**
+ * Creates a new FCP connection to the Freenet node running at the given
+ * address, listening on the given port.
+ *
+ * @param address
+ * The address of the Freenet node
+ * @param port
+ * The port number of the node’s FCP port
+ */
+ public FcpConnection(InetAddress address, int port) {
+ this.address = address;
+ this.port = port;
+ }
+
+ //
+ // LISTENER MANAGEMENT
+ //
+
+ /**
+ * Adds the given listener to the list of listeners.
+ *
+ * @param fcpListener
+ * The listener to add
+ */
+ public void addFcpListener(FcpListener fcpListener) {
+ fcpListeners.add(fcpListener);
+ }
+
+ /**
+ * Removes the given listener from the list of listeners.
+ *
+ * @param fcpListener
+ * The listener to remove
+ */
+ public void removeFcpListener(FcpListener fcpListener) {
+ fcpListeners.remove(fcpListener);
+ }
+
+ /**
+ * Notifies listeners that a “NodeHello” message was received.
+ *
+ * @see FcpListener#receivedNodeHello(FcpConnection, NodeHello)
+ * @param nodeHello
+ * The “NodeHello” message
+ */
+ private void fireReceivedNodeHello(NodeHello nodeHello) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedNodeHello(this, nodeHello);
+ }
+ }
+
+ /**
+ * Notifies listeners that a “CloseConnectionDuplicateClientName” message
+ * was received.
+ *
+ * @see FcpListener#receivedCloseConnectionDuplicateClientName(FcpConnection,
+ * CloseConnectionDuplicateClientName)
+ * @param closeConnectionDuplicateClientName
+ * The “CloseConnectionDuplicateClientName” message
+ */
+ private void fireReceivedCloseConnectionDuplicateClientName(CloseConnectionDuplicateClientName closeConnectionDuplicateClientName) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedCloseConnectionDuplicateClientName(this, closeConnectionDuplicateClientName);
+ }
+ }
+
+ /**
+ * Notifies listeners that a “SSKKeypair” message was received.
+ *
+ * @see FcpListener#receivedSSKKeypair(FcpConnection, SSKKeypair)
+ * @param sskKeypair
+ * The “SSKKeypair” message
+ */
+ private void fireReceivedSSKKeypair(SSKKeypair sskKeypair) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedSSKKeypair(this, sskKeypair);
+ }
+ }
+
+ /**
+ * Notifies listeners that a “Peer” message was received.
+ *
+ * @see FcpListener#receivedPeer(FcpConnection, Peer)
+ * @param peer
+ * The “Peer” message
+ */
+ private void fireReceivedPeer(Peer peer) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedPeer(this, peer);
+ }
+ }
+
+ /**
+ * Notifies all listeners that an “EndListPeers” message was received.
+ *
+ * @see FcpListener#receivedEndListPeers(FcpConnection, EndListPeers)
+ * @param endListPeers
+ * The “EndListPeers” message
+ */
+ private void fireReceivedEndListPeers(EndListPeers endListPeers) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedEndListPeers(this, endListPeers);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “PeerNote” message was received.
+ *
+ * @see FcpListener#receivedPeerNote(FcpConnection, PeerNote)
+ * @param peerNote
+ */
+ private void fireReceivedPeerNote(PeerNote peerNote) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedPeerNote(this, peerNote);
+ }
+ }
+
+ /**
+ * Notifies all listeners that an “EndListPeerNotes” message was received.
+ *
+ * @see FcpListener#receivedEndListPeerNotes(FcpConnection,
+ * EndListPeerNotes)
+ * @param endListPeerNotes
+ * The “EndListPeerNotes” message
+ */
+ private void fireReceivedEndListPeerNotes(EndListPeerNotes endListPeerNotes) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedEndListPeerNotes(this, endListPeerNotes);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “PeerRemoved” message was received.
+ *
+ * @see FcpListener#receivedPeerRemoved(FcpConnection, PeerRemoved)
+ * @param peerRemoved
+ * The “PeerRemoved” message
+ */
+ private void fireReceivedPeerRemoved(PeerRemoved peerRemoved) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedPeerRemoved(this, peerRemoved);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “NodeData” message was received.
+ *
+ * @see FcpListener#receivedNodeData(FcpConnection, NodeData)
+ * @param nodeData
+ * The “NodeData” message
+ */
+ private void fireReceivedNodeData(NodeData nodeData) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedNodeData(this, nodeData);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “TestDDAReply” message was received.
+ *
+ * @see FcpListener#receivedTestDDAReply(FcpConnection, TestDDAReply)
+ * @param testDDAReply
+ * The “TestDDAReply” message
+ */
+ private void fireReceivedTestDDAReply(TestDDAReply testDDAReply) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedTestDDAReply(this, testDDAReply);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “TestDDAComplete” message was received.
+ *
+ * @see FcpListener#receivedTestDDAComplete(FcpConnection, TestDDAComplete)
+ * @param testDDAComplete
+ * The “TestDDAComplete” message
+ */
+ private void fireReceivedTestDDAComplete(TestDDAComplete testDDAComplete) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedTestDDAComplete(this, testDDAComplete);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “PersistentGet” message was received.
+ *
+ * @see FcpListener#receivedPersistentGet(FcpConnection, PersistentGet)
+ * @param persistentGet
+ * The “PersistentGet” message
+ */
+ private void fireReceivedPersistentGet(PersistentGet persistentGet) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedPersistentGet(this, persistentGet);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “PersistentPut” message was received.
+ *
+ * @see FcpListener#receivedPersistentPut(FcpConnection, PersistentPut)
+ * @param persistentPut
+ * The “PersistentPut” message
+ */
+ private void fireReceivedPersistentPut(PersistentPut persistentPut) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedPersistentPut(this, persistentPut);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “EndListPersistentRequests” message was
+ * received.
+ *
+ * @see FcpListener#receivedEndListPersistentRequests(FcpConnection,
+ * EndListPersistentRequests)
+ * @param endListPersistentRequests
+ * The “EndListPersistentRequests” message
+ */
+ private void fireReceivedEndListPersistentRequests(EndListPersistentRequests endListPersistentRequests) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedEndListPersistentRequests(this, endListPersistentRequests);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “URIGenerated” message was received.
+ *
+ * @see FcpListener#receivedURIGenerated(FcpConnection, URIGenerated)
+ * @param uriGenerated
+ * The “URIGenerated” message
+ */
+ private void fireReceivedURIGenerated(URIGenerated uriGenerated) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedURIGenerated(this, uriGenerated);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “DataFound” message was received.
+ *
+ * @see FcpListener#receivedDataFound(FcpConnection, DataFound)
+ * @param dataFound
+ * The “DataFound” message
+ */
+ private void fireReceivedDataFound(DataFound dataFound) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedDataFound(this, dataFound);
+ }
+ }
+
+ /**
+ * Notifies all listeners that an “AllData” message was received.
+ *
+ * @see FcpListener#receivedAllData(FcpConnection, AllData)
+ * @param allData
+ * The “AllData” message
+ */
+ private void fireReceivedAllData(AllData allData) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedAllData(this, allData);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “SimpleProgress” message was received.
+ *
+ * @see FcpListener#receivedSimpleProgress(FcpConnection, SimpleProgress)
+ * @param simpleProgress
+ * The “SimpleProgress” message
+ */
+ private void fireReceivedSimpleProgress(SimpleProgress simpleProgress) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedSimpleProgress(this, simpleProgress);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “StartedCompression” message was received.
+ *
+ * @see FcpListener#receivedStartedCompression(FcpConnection,
+ * StartedCompression)
+ * @param startedCompression
+ * The “StartedCompression” message
+ */
+ private void fireReceivedStartedCompression(StartedCompression startedCompression) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedStartedCompression(this, startedCompression);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “FinishedCompression” message was received.
+ *
+ * @see FcpListener#receviedFinishedCompression(FcpConnection,
+ * FinishedCompression)
+ * @param finishedCompression
+ * The “FinishedCompression” message
+ */
+ private void fireReceivedFinishedCompression(FinishedCompression finishedCompression) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receviedFinishedCompression(this, finishedCompression);
+ }
+ }
+
+ /**
+ * Notifies all listeners that an “UnknownPeerNoteType” message was
+ * received.
+ *
+ * @see FcpListener#receivedUnknownPeerNoteType(FcpConnection,
+ * UnknownPeerNoteType)
+ * @param unknownPeerNoteType
+ * The “UnknownPeerNoteType” message
+ */
+ private void fireReceivedUnknownPeerNoteType(UnknownPeerNoteType unknownPeerNoteType) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedUnknownPeerNoteType(this, unknownPeerNoteType);
+ }
+ }
+
+ /**
+ * Notifies all listeners that an “UnknownNodeIdentifier” message was
+ * received.
+ *
+ * @see FcpListener#receivedUnknownNodeIdentifier(FcpConnection,
+ * UnknownNodeIdentifier)
+ * @param unknownNodeIdentifier
+ * The “UnknownNodeIdentifier” message
+ */
+ private void fireReceivedUnknownNodeIdentifier(UnknownNodeIdentifier unknownNodeIdentifier) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedUnknownNodeIdentifier(this, unknownNodeIdentifier);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “ConfigData” message was received.
+ *
+ * @see FcpListener#receivedConfigData(FcpConnection, ConfigData)
+ * @param configData
+ * The “ConfigData” message
+ */
+ private void fireReceivedConfigData(ConfigData configData) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedConfigData(this, configData);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “GetFailed” message was received.
+ *
+ * @see FcpListener#receivedGetFailed(FcpConnection, GetFailed)
+ * @param getFailed
+ * The “GetFailed” message
+ */
+ private void fireReceivedGetFailed(GetFailed getFailed) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedGetFailed(this, getFailed);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “PutFailed” message was received.
+ *
+ * @see FcpListener#receivedPutFailed(FcpConnection, PutFailed)
+ * @param putFailed
+ * The “PutFailed” message
+ */
+ private void fireReceivedPutFailed(PutFailed putFailed) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedPutFailed(this, putFailed);
+ }
+ }
+
+ /**
+ * Notifies all listeners that an “IdentifierCollision” message was
+ * received.
+ *
+ * @see FcpListener#receivedIdentifierCollision(FcpConnection,
+ * IdentifierCollision)
+ * @param identifierCollision
+ * The “IdentifierCollision” message
+ */
+ private void fireReceivedIdentifierCollision(IdentifierCollision identifierCollision) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedIdentifierCollision(this, identifierCollision);
+ }
+ }
+
+ /**
+ * Notifies all listeners that an “PersistentPutDir” message was received.
+ *
+ * @see FcpListener#receivedPersistentPutDir(FcpConnection,
+ * PersistentPutDir)
+ * @param persistentPutDir
+ * The “PersistentPutDir” message
+ */
+ private void fireReceivedPersistentPutDir(PersistentPutDir persistentPutDir) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedPersistentPutDir(this, persistentPutDir);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “PersistentRequestRemoved” message was
+ * received.
+ *
+ * @see FcpListener#receivedPersistentRequestRemoved(FcpConnection,
+ * PersistentRequestRemoved)
+ * @param persistentRequestRemoved
+ * The “PersistentRequestRemoved” message
+ */
+ private void fireReceivedPersistentRequestRemoved(PersistentRequestRemoved persistentRequestRemoved) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedPersistentRequestRemoved(this, persistentRequestRemoved);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “SubscribedUSKUpdate” message was received.
+ *
+ * @see FcpListener#receivedSubscribedUSKUpdate(FcpConnection,
+ * SubscribedUSKUpdate)
+ * @param subscribedUSKUpdate
+ * The “SubscribedUSKUpdate” message
+ */
+ private void fireReceivedSubscribedUSKUpdate(SubscribedUSKUpdate subscribedUSKUpdate) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedSubscribedUSKUpdate(this, subscribedUSKUpdate);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “PluginInfo” message was received.
+ *
+ * @see FcpListener#receivedPluginInfo(FcpConnection, PluginInfo)
+ * @param pluginInfo
+ * The “PluginInfo” message
+ */
+ private void fireReceivedPluginInfo(PluginInfo pluginInfo) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedPluginInfo(this, pluginInfo);
+ }
+ }
+
+ /**
+ * Notifies all listeners that an “FCPPluginReply” message was received.
+ *
+ * @see FcpListener#receivedFCPPluginReply(FcpConnection, FCPPluginReply)
+ * @param fcpPluginReply
+ * The “FCPPluginReply” message
+ */
+ private void fireReceivedFCPPluginReply(FCPPluginReply fcpPluginReply) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedFCPPluginReply(this, fcpPluginReply);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “PersistentRequestModified” message was
+ * received.
+ *
+ * @see FcpListener#receivedPersistentRequestModified(FcpConnection,
+ * PersistentRequestModified)
+ * @param persistentRequestModified
+ * The “PersistentRequestModified” message
+ */
+ private void fireReceivedPersistentRequestModified(PersistentRequestModified persistentRequestModified) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedPersistentRequestModified(this, persistentRequestModified);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “PutSuccessful” message was received.
+ *
+ * @see FcpListener#receivedPutSuccessful(FcpConnection, PutSuccessful)
+ * @param putSuccessful
+ * The “PutSuccessful” message
+ */
+ private void fireReceivedPutSuccessful(PutSuccessful putSuccessful) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedPutSuccessful(this, putSuccessful);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “PutFetchable” message was received.
+ *
+ * @see FcpListener#receivedPutFetchable(FcpConnection, PutFetchable)
+ * @param putFetchable
+ * The “PutFetchable” message
+ */
+ private void fireReceivedPutFetchable(PutFetchable putFetchable) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedPutFetchable(this, putFetchable);
+ }
+ }
+
+ /**
+ * Notifies all listeners that a “ProtocolError” message was received.
+ *
+ * @see FcpListener#receivedProtocolError(FcpConnection, ProtocolError)
+ * @param protocolError
+ * The “ProtocolError” message
+ */
+ private void fireReceivedProtocolError(ProtocolError protocolError) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedProtocolError(this, protocolError);
+ }
+ }
+
+ /**
+ * Notifies all registered listeners that a message has been received.
+ *
+ * @see FcpListener#receivedMessage(FcpConnection, FcpMessage)
+ * @param fcpMessage
+ * The message that was received
+ */
+ private void fireMessageReceived(FcpMessage fcpMessage) {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.receivedMessage(this, fcpMessage);
+ }
+ }
+
+ /**
+ * Notifies all listeners that the connection to the node was closed.
+ *
+ * @see FcpListener#connectionClosed(FcpConnection)
+ */
+ private void fireConnectionClosed() {
+ for (FcpListener fcpListener: fcpListeners) {
+ fcpListener.connectionClosed(this);
+ }
+ }
+
+ //
+ // ACTIONS
+ //
+
+ /**
+ * Connects to the node.
+ *
+ * @throws IOException
+ * if an I/O error occurs
+ * @throws IllegalStateException
+ * if there is already a connection to the node
+ */
+ public synchronized void connect() throws IOException, IllegalStateException {
+ if (connectionHandler != null) {
+ throw new IllegalStateException("already connected, disconnect first");
+ }
+ remoteSocket = new Socket(address, port);
+ remoteInputStream = remoteSocket.getInputStream();
+ remoteOutputStream = remoteSocket.getOutputStream();
+ new Thread(connectionHandler = new FcpConnectionHandler(this, remoteInputStream)).start();
+ }
+
+ /**
+ * Disconnects from the node. If there is no connection to the node, this
+ * method does nothing.
+ */
+ public synchronized void disconnect() {
+ if (connectionHandler == null) {
+ return;
+ }
+ FcpUtils.close(remoteSocket);
+ connectionHandler.stop();
+ connectionHandler = null;
+ }
+
+ /**
+ * Sends the given FCP message.
+ *
+ * @param fcpMessage
+ * The FCP message to send
+ * @throws IOException
+ * if an I/O error occurs
+ */
+ public synchronized void sendMessage(FcpMessage fcpMessage) throws IOException {
+ System.out.println("sending message: " + fcpMessage.getName());
+ fcpMessage.write(remoteOutputStream);
+ }
+
+ //
+ // PACKAGE-PRIVATE METHODS
+ //
+
+ /**
+ * Handles the given message, notifying listeners. This message should only
+ * be called by {@link FcpConnectionHandler}.
+ *
+ * @param fcpMessage
+ * The received message
+ */
+ void handleMessage(FcpMessage fcpMessage) {
+ String messageName = fcpMessage.getName();
+ countMessage(messageName);
+ if ("SimpleProgress".equals(messageName)) {
+ fireReceivedSimpleProgress(new SimpleProgress(fcpMessage));
+ } else if ("ProtocolError".equals(messageName)) {
+ fireReceivedProtocolError(new ProtocolError(fcpMessage));
+ } else if ("PersistentGet".equals(messageName)) {
+ fireReceivedPersistentGet(new PersistentGet(fcpMessage));
+ } else if ("PersistentPut".equals(messageName)) {
+ fireReceivedPersistentPut(new PersistentPut(fcpMessage));
+ } else if ("PersistentPutDir".equals(messageName)) {
+ fireReceivedPersistentPutDir(new PersistentPutDir(fcpMessage));
+ } else if ("URIGenerated".equals(messageName)) {
+ fireReceivedURIGenerated(new URIGenerated(fcpMessage));
+ } else if ("EndListPersistentRequests".equals(messageName)) {
+ fireReceivedEndListPersistentRequests(new EndListPersistentRequests(fcpMessage));
+ } else if ("Peer".equals(messageName)) {
+ fireReceivedPeer(new Peer(fcpMessage));
+ } else if ("PeerNote".equals(messageName)) {
+ fireReceivedPeerNote(new PeerNote(fcpMessage));
+ } else if ("StartedCompression".equals(messageName)) {
+ fireReceivedStartedCompression(new StartedCompression(fcpMessage));
+ } else if ("FinishedCompression".equals(messageName)) {
+ fireReceivedFinishedCompression(new FinishedCompression(fcpMessage));
+ } else if ("GetFailed".equals(messageName)) {
+ fireReceivedGetFailed(new GetFailed(fcpMessage));
+ } else if ("PutFetchable".equals(messageName)) {
+ fireReceivedPutFetchable(new PutFetchable(fcpMessage));
+ } else if ("PutSuccessful".equals(messageName)) {
+ fireReceivedPutSuccessful(new PutSuccessful(fcpMessage));
+ } else if ("PutFailed".equals(messageName)) {
+ fireReceivedPutFailed(new PutFailed(fcpMessage));
+ } else if ("DataFound".equals(messageName)) {
+ fireReceivedDataFound(new DataFound(fcpMessage));
+ } else if ("SubscribedUSKUpdate".equals(messageName)) {
+ fireReceivedSubscribedUSKUpdate(new SubscribedUSKUpdate(fcpMessage));
+ } else if ("IdentifierCollision".equals(messageName)) {
+ fireReceivedIdentifierCollision(new IdentifierCollision(fcpMessage));
+ } else if ("AllData".equals(messageName)) {
+ LimitedInputStream payloadInputStream = getInputStream(FcpUtils.safeParseLong(fcpMessage.getField("DataLength")));
+ fireReceivedAllData(new AllData(fcpMessage, payloadInputStream));
+ try {
+ payloadInputStream.consume();
+ } catch (IOException ioe1) {
+ /* well, ignore. when the connection handler fails, all fails. */
+ }
+ } else if ("EndListPeerNotes".equals(messageName)) {
+ fireReceivedEndListPeerNotes(new EndListPeerNotes(fcpMessage));
+ } else if ("EndListPeers".equals(messageName)) {
+ fireReceivedEndListPeers(new EndListPeers(fcpMessage));
+ } else if ("SSKKeypair".equals(messageName)) {
+ fireReceivedSSKKeypair(new SSKKeypair(fcpMessage));
+ } else if ("PeerRemoved".equals(messageName)) {
+ fireReceivedPeerRemoved(new PeerRemoved(fcpMessage));
+ } else if ("PersistentRequestModified".equals(messageName)) {
+ fireReceivedPersistentRequestModified(new PersistentRequestModified(fcpMessage));
+ } else if ("PersistentRequestRemoved".equals(messageName)) {
+ fireReceivedPersistentRequestRemoved(new PersistentRequestRemoved(fcpMessage));
+ } else if ("UnknownPeerNoteType".equals(messageName)) {
+ fireReceivedUnknownPeerNoteType(new UnknownPeerNoteType(fcpMessage));
+ } else if ("UnknownNodeIdentifier".equals(messageName)) {
+ fireReceivedUnknownNodeIdentifier(new UnknownNodeIdentifier(fcpMessage));
+ } else if ("FCPPluginReply".equals(messageName)) {
+ LimitedInputStream payloadInputStream = getInputStream(FcpUtils.safeParseLong(fcpMessage.getField("DataLength")));
+ fireReceivedFCPPluginReply(new FCPPluginReply(fcpMessage, payloadInputStream));
+ try {
+ payloadInputStream.consume();
+ } catch (IOException ioe1) {
+ /* ignore. */
+ }
+ } else if ("PluginInfo".equals(messageName)) {
+ fireReceivedPluginInfo(new PluginInfo(fcpMessage));
+ } else if ("NodeData".equals(messageName)) {
+ fireReceivedNodeData(new NodeData(fcpMessage));
+ } else if ("TestDDAReply".equals(messageName)) {
+ fireReceivedTestDDAReply(new TestDDAReply(fcpMessage));
+ } else if ("TestDDAComplete".equals(messageName)) {
+ fireReceivedTestDDAComplete(new TestDDAComplete(fcpMessage));
+ } else if ("ConfigData".equals(messageName)) {
+ fireReceivedConfigData(new ConfigData(fcpMessage));
+ } else if ("NodeHello".equals(messageName)) {
+ fireReceivedNodeHello(new NodeHello(fcpMessage));
+ } else if ("CloseConnectionDuplicateClientName".equals(messageName)) {
+ fireReceivedCloseConnectionDuplicateClientName(new CloseConnectionDuplicateClientName(fcpMessage));
+ } else {
+ fireMessageReceived(fcpMessage);
+ }
+ }
+
+ /**
+ * Handles a disconnect from the node.
+ */
+ synchronized void handleDisconnect() {
+ FcpUtils.close(remoteInputStream);
+ FcpUtils.close(remoteOutputStream);
+ FcpUtils.close(remoteSocket);
+ connectionHandler = null;
+ fireConnectionClosed();
+ }
+
+ //
+ // PRIVATE METHODS
+ //
+
+ /**
+ * Incremets the counter in {@link #incomingMessageStatistics} by <cod>1</code>
+ * for the given message name.
+ *
+ * @param name
+ * The name of the message to count
+ */
+ private void countMessage(String name) {
+ int oldValue = 0;
+ if (incomingMessageStatistics.containsKey(name)) {
+ oldValue = incomingMessageStatistics.get(name);
+ }
+ incomingMessageStatistics.put(name, oldValue + 1);
+ }
+
+ /**
+ * Returns a limited input stream from the node’s input stream.
+ *
+ * @param dataLength
+ * The length of the stream
+ * @return The limited input stream
+ */
+ private LimitedInputStream getInputStream(long dataLength) {
+ if (dataLength <= 0) {
+ return new LimitedInputStream(null, 0);
+ }
+ return new LimitedInputStream(remoteInputStream, dataLength);
+ }
+
+ /**
+ * A wrapper around an {@link InputStream} that only supplies a limit number
+ * of bytes from the underlying input stream.
+ *
+ * @author <a href="mailto:dr@ina-germany.de">David Roden</a>
+ * @version $Id$
+ */
+ private static class LimitedInputStream extends FilterInputStream {
+
+ /** The remaining number of bytes that can be read. */
+ private long remaining;
+
+ /**
+ * Creates a new LimitedInputStream that supplies at most
+ * <code>length</code> bytes from the given input stream.
+ *
+ * @param inputStream
+ * The input stream
+ * @param length
+ * The number of bytes to read
+ */
+ public LimitedInputStream(InputStream inputStream, long length) {
+ super(inputStream);
+ remaining = length;
+ }
+
+ /**
+ * @see java.io.FilterInputStream#available()
+ */
+ @Override
+ public synchronized int available() throws IOException {
+ if (remaining == 0) {
+ return 0;
+ }
+ return (int) Math.min(super.available(), Math.min(Integer.MAX_VALUE, remaining));
+ }
+
+ /**
+ * @see java.io.FilterInputStream#read()
+ */
+ @Override
+ public synchronized int read() throws IOException {
+ int read = -1;
+ if (remaining > 0) {
+ read = super.read();
+ remaining--;
+ }
+ return read;
+ }
+
+ /**
+ * @see java.io.FilterInputStream#read(byte[], int, int)
+ */
+ @Override
+ public synchronized int read(byte[] b, int off, int len) throws IOException {
+ if (remaining == 0) {
+ return -1;
+ }
+ int toCopy = (int) Math.min(len, Math.min(remaining, Integer.MAX_VALUE));
+ int read = super.read(b, off, toCopy);
+ remaining -= read;
+ return read;
+ }
+
+ /**
+ * @see java.io.FilterInputStream#skip(long)
+ */
+ @Override
+ public synchronized long skip(long n) throws IOException {
+ if ((n < 0) || (remaining == 0)) {
+ return 0;
+ }
+ long skipped = super.skip(Math.min(n, remaining));
+ remaining -= skipped;
+ return skipped;
+ }
+
+ /**
+ * {@inheritDoc} This method does nothing, as {@link #mark(int)} and
+ * {@link #reset()} are not supported.
+ *
+ * @see java.io.FilterInputStream#mark(int)
+ */
+ @Override
+ public void mark(int readlimit) {
+ /* do nothing. */
+ }
+
+ /**
+ * {@inheritDoc}
+ *
+ * @see java.io.FilterInputStream#markSupported()
+ * @return <code>false</code>
+ */
+ @Override
+ public boolean markSupported() {
+ return false;
+ }
+
+ /**
+ * {@inheritDoc} This method does nothing, as {@link #mark(int)} and
+ * {@link #reset()} are not supported.
+ *
+ * @see java.io.FilterInputStream#reset()
+ */
+ @Override
+ public void reset() throws IOException {
+ /* do nothing. */
+ }
+
+ /**
+ * Consumes the input stream, i.e. read all bytes until the limit is
+ * reached.
+ *
+ * @throws IOException
+ * if an I/O error occurs
+ */
+ public void consume() throws IOException {
+ while (remaining > 0) {
+ skip(remaining);
+ }
+ }
+
+ }
+
+}
projects / jFCPlib.git / blobdiff