package net.pterodactylus.irc;
import static com.google.common.base.Preconditions.checkState;
+import static java.util.concurrent.TimeUnit.SECONDS;
import java.io.BufferedReader;
import java.io.Closeable;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
+import java.net.InetAddress;
import java.net.Socket;
+import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Set;
-import java.util.logging.Level;
-import java.util.logging.Logger;
+import java.util.concurrent.TimeUnit;
import javax.net.SocketFactory;
import net.pterodactylus.irc.event.ChannelJoined;
+import net.pterodactylus.irc.event.ChannelLeft;
import net.pterodactylus.irc.event.ChannelMessageReceived;
import net.pterodactylus.irc.event.ChannelNicknames;
import net.pterodactylus.irc.event.ChannelNotJoined;
import net.pterodactylus.irc.event.ChannelNotJoined.Reason;
+import net.pterodactylus.irc.event.ChannelNoticeReceived;
import net.pterodactylus.irc.event.ChannelTopic;
+import net.pterodactylus.irc.event.ClientQuit;
+import net.pterodactylus.irc.event.ConnectionClosed;
import net.pterodactylus.irc.event.ConnectionEstablished;
import net.pterodactylus.irc.event.ConnectionFailed;
+import net.pterodactylus.irc.event.DccAcceptReceived;
+import net.pterodactylus.irc.event.DccSendReceived;
+import net.pterodactylus.irc.event.KickedFromChannel;
import net.pterodactylus.irc.event.MotdReceived;
+import net.pterodactylus.irc.event.NicknameChanged;
import net.pterodactylus.irc.event.NicknameInUseReceived;
import net.pterodactylus.irc.event.NoNicknameGivenReceived;
import net.pterodactylus.irc.event.PrivateMessageReceived;
+import net.pterodactylus.irc.event.PrivateNoticeReceived;
+import net.pterodactylus.irc.event.ReplyReceived;
import net.pterodactylus.irc.event.UnknownReplyReceived;
import net.pterodactylus.irc.util.RandomNickname;
+import net.pterodactylus.xdcc.util.io.BandwidthCountingInputStream;
+import net.pterodactylus.xdcc.util.io.BandwidthCountingOutputStream;
import com.google.common.base.Optional;
import com.google.common.collect.Maps;
import com.google.common.collect.Sets;
import com.google.common.eventbus.EventBus;
import com.google.common.io.Closeables;
+import com.google.common.primitives.Ints;
+import com.google.common.primitives.Longs;
import com.google.common.util.concurrent.AbstractExecutionThreadService;
import com.google.common.util.concurrent.Service;
+import org.apache.log4j.Logger;
/**
* A connection to an IRC server.
/** The connection handler. */
private ConnectionHandler connectionHandler;
+ /** Whether the connection has already been established. */
+ private boolean established;
+
/**
* Creates a new connection.
*
//
/**
+ * Returns the hostname of the remote end of the connection.
+ *
+ * @return The remote’s hostname
+ */
+ public String hostname() {
+ return hostname;
+ }
+
+ /**
+ * Returns the port number of the remote end of the connection.
+ *
+ * @return The remote’s port number
+ */
+ public int port() {
+ return port;
+ }
+
+ /**
+ * Returns whether this connection has already been established.
+ *
+ * @return {@code true} as long as this connection is established, {@code
+ * false} otherwise
+ */
+ public boolean established() {
+ return established;
+ }
+
+ /**
* Returns the nickname that is currently in use by this connection. The
* nickname is only available once the connection has been {@link #start()}ed.
*
//
/**
+ * Returns the current rate of the connection’s incoming side.
+ *
+ * @return The current input rate (in bytes per second)
+ */
+ public long getInputRate() {
+ return (connectionHandler != null) ? connectionHandler.getInputRate() : 0;
+ }
+
+ /**
+ * Returns the current rate of the connection’s outgoing side.
+ *
+ * @return The current output rate (in bytes per second)
+ */
+ public long getOutputRate() {
+ return (connectionHandler != null) ? connectionHandler.getOutputRate() : 0;
+ }
+
+ /**
+ * Checks whether the given source is the client represented by this
+ * connection.
+ *
+ * @param source
+ * The source to check
+ * @return {@code true} if this connection represents the given source, {@code
+ * false} otherwise
+ */
+ public boolean isSource(Source source) {
+ return source.nick().isPresent() && source.nick().get().equals(nickname);
+ }
+
+ /**
* Joins the given channel.
*
* @param channel
connectionHandler.sendCommand("PRIVMSG", recipient, message);
}
+ /**
+ * Sends a DCC RESUME request to the given recipient.
+ *
+ * @param recipient
+ * The recipient of the request
+ * @param filename
+ * The name of the file to resume
+ * @param port
+ * The port number from the original DCC SEND request
+ * @param position
+ * The position at which to resume the transfer
+ * @throws IOException
+ * if an I/O error occurs
+ */
+ public void sendDccResume(String recipient, String filename, int port, long position) throws IOException {
+ connectionHandler.sendCommand("PRIVMSG", recipient, String.format("\u0001DCC RESUME %s %d %d\u0001", filename, port, position));
+ }
+
+ /**
+ * Closes this connection.
+ *
+ * @throws IOException
+ * if an I/O error occurs
+ */
+ public void close() throws IOException {
+ if (connectionHandler != null) {
+ connectionHandler.close();
+ }
+ }
+
//
// ABSTRACTEXECUTIONTHREADSERVICE METHODS
//
/* connect to remote socket. */
try {
Socket socket = socketFactory.createSocket(hostname, port);
+ socket.setSoTimeout((int) TimeUnit.MINUTES.toMillis(3));
connectionHandler = new ConnectionHandler(socket.getInputStream(), socket.getOutputStream());
/* register connection. */
while (connected) {
Reply reply = connectionHandler.readReply();
- logger.finest(String.format("<< %s", reply));
+ eventBus.post(new ReplyReceived(this, reply));
+ logger.trace(String.format("<< %s", reply));
String command = reply.command();
List<String> parameters = reply.parameters();
if (command.equalsIgnoreCase("PRIVMSG")) {
String recipient = parameters.get(0);
String message = parameters.get(1);
- if (!channelTypes.contains(recipient.charAt(0))) {
+ if (message.startsWith("\u0001") && message.endsWith("\u0001")) {
+ /* CTCP! */
+ handleCtcp(reply.source().get(), message);
+ } else if (!channelTypes.contains(recipient.charAt(0))) {
eventBus.post(new PrivateMessageReceived(this, reply.source().get(), message));
} else {
eventBus.post(new ChannelMessageReceived(this, recipient, reply.source().get(), message));
}
- /* replies 001-004 don’t hold information but they have to be sent on a successful connection. */
- } else if (command.equals("001")) {
- connectionStatus |= 0x01;
- } else if (command.equals("002")) {
- connectionStatus |= 0x02;
- } else if (command.equals("003")) {
- connectionStatus |= 0x04;
- } else if (command.equals("004")) {
- connectionStatus |= 0x08;
-
- /* 005 originally was a bounce message, now used to transmit useful information about the server. */
- } else if (command.equals("005")) {
- for (String parameter : parameters) {
- if (parameter.startsWith("PREFIX=")) {
- int openParen = parameter.indexOf('(');
- int closeParen = parameter.indexOf(')');
- if ((openParen != -1) && (closeParen != -1)) {
- for (int modeCharacterIndex = 1; modeCharacterIndex < (closeParen - openParen); ++modeCharacterIndex) {
- char modeCharacter = parameter.charAt(openParen + modeCharacterIndex);
- char modeSymbol = parameter.charAt(closeParen + modeCharacterIndex);
- nickPrefixes.put(String.valueOf(modeSymbol), String.valueOf(modeCharacter));
- }
- logger.fine(String.format("Parsed Prefixes: %s", nickPrefixes));
- }
- } else if (parameter.startsWith("CHANTYPES=")) {
- for (int typeIndex = 10; typeIndex < parameter.length(); ++typeIndex) {
- channelTypes.add(parameter.charAt(typeIndex));
- }
- logger.fine(String.format("Parsed Channel Types: %s", channelTypes));
- }
+ } else if (command.equalsIgnoreCase("NOTICE")) {
+ String recipient = parameters.get(0);
+ String message = parameters.get(1);
+ if (message.startsWith("\u0001") && message.endsWith("\u0001")) {
+ /* CTCP! */
+ handleCtcp(reply.source().get(), message);
+ } else if (!channelTypes.contains(recipient.charAt(0))) {
+ eventBus.post(new PrivateNoticeReceived(this, reply));
+ } else {
+ eventBus.post(new ChannelNoticeReceived(this, reply.source().get(), recipient, message));
}
- /* 375, 372, and 376 handle the server’s MOTD. */
- } else if (command.equals("375")) {
- /* MOTD starts. */
- motd.append(parameters.get(1)).append('\n');
- } else if (command.equals("372")) {
- motd.append(parameters.get(1)).append('\n');
- } else if (command.equals("376")) {
- motd.append(parameters.get(1)).append('\n');
- eventBus.post(new MotdReceived(this, motd.toString()));
- motd.setLength(0);
-
/* 43x replies are for nick change errors. */
} else if (command.equals("431")) {
eventBus.post(new NoNicknameGivenReceived(this, reply));
eventBus.post(new NicknameInUseReceived(this, reply));
}
+ /* client stuff. */
+ } else if (command.equalsIgnoreCase("NICK")) {
+ eventBus.post(new NicknameChanged(this, reply.source().get(), parameters.get(0)));
+
/* channel stuff. */
} else if (command.equalsIgnoreCase("JOIN")) {
eventBus.post(new ChannelJoined(this, parameters.get(0), reply.source().get()));
} else if (command.equals("366")) {
eventBus.post(new ChannelNicknames(this, parameters.get(1), nicks));
nicks.clear();
+ } else if (command.equalsIgnoreCase("PART")) {
+ eventBus.post(new ChannelLeft(this, parameters.get(0), reply.source().get(), getOptional(parameters, 1)));
+ } else if (command.equalsIgnoreCase("QUIT")) {
+ eventBus.post(new ClientQuit(this, reply.source().get(), parameters.get(0)));
/* common channel join errors. */
} else if (command.equals("474")) {
eventBus.post(new ChannelNotJoined(this, parameters.get(1), Reason.inviteOnly));
} else if (command.equals("475")) {
eventBus.post(new ChannelNotJoined(this, parameters.get(1), Reason.badChannelKey));
+ } else if (command.equals("477")) {
+ eventBus.post(new ChannelNotJoined(this, parameters.get(1), Reason.registeredNicknamesOnly));
/* basic connection housekeeping. */
} else if (command.equalsIgnoreCase("PING")) {
connectionHandler.sendCommand("PONG", getOptional(parameters, 0), getOptional(parameters, 1));
+ /* replies 001-004 don’t hold information but they have to be sent on a successful connection. */
+ } else if (command.equals("001")) {
+ connectionStatus |= 0x01;
+ } else if (command.equals("002")) {
+ connectionStatus |= 0x02;
+ } else if (command.equals("003")) {
+ connectionStatus |= 0x04;
+ } else if (command.equals("004")) {
+ connectionStatus |= 0x08;
+
+ /* 005 originally was a bounce message, now used to transmit useful information about the server. */
+ } else if (command.equals("005")) {
+ for (String parameter : parameters) {
+ if (parameter.startsWith("PREFIX=")) {
+ int openParen = parameter.indexOf('(');
+ int closeParen = parameter.indexOf(')');
+ if ((openParen != -1) && (closeParen != -1)) {
+ for (int modeCharacterIndex = 1; modeCharacterIndex < (closeParen - openParen); ++modeCharacterIndex) {
+ char modeCharacter = parameter.charAt(openParen + modeCharacterIndex);
+ char modeSymbol = parameter.charAt(closeParen + modeCharacterIndex);
+ nickPrefixes.put(String.valueOf(modeSymbol), String.valueOf(modeCharacter));
+ }
+ logger.debug(String.format("Parsed Prefixes: %s", nickPrefixes));
+ }
+ } else if (parameter.startsWith("CHANTYPES=")) {
+ for (int typeIndex = 10; typeIndex < parameter.length(); ++typeIndex) {
+ channelTypes.add(parameter.charAt(typeIndex));
+ }
+ logger.debug(String.format("Parsed Channel Types: %s", channelTypes));
+ }
+ }
+
+ /* 375, 372, and 376 handle the server’s MOTD. */
+ } else if (command.equals("375")) {
+ /* MOTD starts. */
+ motd.append(parameters.get(1)).append('\n');
+ } else if (command.equals("372")) {
+ motd.append(parameters.get(1)).append('\n');
+ } else if (command.equals("376")) {
+ motd.append(parameters.get(1)).append('\n');
+ eventBus.post(new MotdReceived(this, motd.toString()));
+ motd.setLength(0);
+
+ } else if (command.equals("KICK")) {
+ eventBus.post(new KickedFromChannel(this, parameters.get(0), reply.source().get(), parameters.get(1), getOptional(parameters, 2)));
+
/* okay, everything else. */
} else {
eventBus.post(new UnknownReplyReceived(this, reply));
if ((connectionStatus == 0x0f) && (connectionStatus != oldConnectionStatus)) {
/* connection succeeded! */
+ established = true;
eventBus.post(new ConnectionEstablished(this));
}
oldConnectionStatus = connectionStatus;
}
+ eventBus.post(new ConnectionClosed(this));
} catch (IOException ioe1) {
- logger.log(Level.WARNING, "I/O error", ioe1);
+ logger.warn("I/O error", ioe1);
+ eventBus.post(new ConnectionClosed(this, ioe1));
+ } catch (RuntimeException re1) {
+ logger.error("Runtime error", re1);
+ eventBus.post(new ConnectionClosed(this, re1));
} finally {
+ established = false;
logger.info("Closing Connection.");
try {
Closeables.close(connectionHandler, true);
//
/**
+ * Handles a CTCP message.
+ *
+ * @param client
+ * The client sending the message
+ * @param message
+ * The message
+ */
+ private void handleCtcp(Source client, String message) {
+ String[] messageWords = message.substring(1, message.length() - 1).split(" +");
+ String ctcpCommand = messageWords[0];
+ if (ctcpCommand.equalsIgnoreCase("DCC")) {
+ if (messageWords[1].equalsIgnoreCase("SEND")) {
+ Optional<InetAddress> inetAddress = parseInetAddress(messageWords[3]);
+ Optional<Integer> port = Optional.fromNullable(Ints.tryParse(messageWords[4]));
+ long fileSize = Optional.fromNullable(Longs.tryParse(messageWords[5])).or(-1L);
+ if (inetAddress.isPresent() && port.isPresent()) {
+ eventBus.post(new DccSendReceived(this, client, messageWords[2], inetAddress.get(), port.get(), fileSize));
+ } else {
+ logger.warn(String.format("Received malformed DCC SEND: “%s”", message));
+ }
+ } else if (messageWords[1].equalsIgnoreCase("ACCEPT")) {
+ Optional<Integer> port = Optional.fromNullable(Ints.tryParse(messageWords[3]));
+ long position = (messageWords.length > 4) ? Optional.fromNullable(Longs.tryParse(messageWords[4])).or(-1L) : -1;
+ if (port.isPresent()) {
+ eventBus.post(new DccAcceptReceived(this, client, messageWords[2], port.get(), position));
+ } else {
+ logger.warn(String.format("Received malformed DCC ACCEPT: “%s”", message));
+ }
+ }
+ }
+ }
+
+ /**
* Returns an item from the list, or {@link Optional#absent()} if the list is
* shorter than required for the given index.
*
return Optional.absent();
}
+ /**
+ * Parses the given {@code ip} and returns an {@link InetAddress} from it.
+ *
+ * @param ip
+ * The IP to parse
+ * @return The parsed inet address, or {@link Optional#absent()} if no inet
+ * address could be parsed
+ */
+ private Optional<InetAddress> parseInetAddress(String ip) {
+ Long ipNumber = Longs.tryParse(ip);
+ if (ipNumber == null) {
+ return Optional.absent();
+ }
+
+ StringBuilder hostname = new StringBuilder(15);
+ hostname.append((ipNumber >>> 24) & 0xff).append('.');
+ hostname.append((ipNumber >>> 16) & 0xff).append('.');
+ hostname.append((ipNumber >>> 8) & 0xff).append('.');
+ hostname.append(ipNumber & 0xff);
+ try {
+ return Optional.of(InetAddress.getByName(hostname.toString()));
+ } catch (UnknownHostException uhe1) {
+ return Optional.absent();
+ }
+ }
+
/** Handles input and output for the connection. */
private class ConnectionHandler implements Closeable {
/** The output stream of the connection. */
- private final OutputStream outputStream;
+ private final BandwidthCountingOutputStream outputStream;
+
+ /** The input stream. */
+ private final BandwidthCountingInputStream inputStream;
/** The input stream of the connection. */
private final BufferedReader inputStreamReader;
* if the encoding (currently “UTF-8”) is not valid
*/
private ConnectionHandler(InputStream inputStream, OutputStream outputStream) throws UnsupportedEncodingException {
- this.outputStream = outputStream;
- inputStreamReader = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"));
+ this.outputStream = new BandwidthCountingOutputStream(outputStream, 5, SECONDS);
+ this.inputStream = new BandwidthCountingInputStream(inputStream, 5, SECONDS);
+ inputStreamReader = new BufferedReader(new InputStreamReader(this.inputStream, "UTF-8"));
}
//
//
/**
+ * Returns the current rate of the connection’s incoming side.
+ *
+ * @return The current input rate (in bytes per second)
+ */
+ public long getInputRate() {
+ return inputStream.getCurrentRate();
+ }
+
+ /**
+ * Returns the current rate of the connection’s outgoing side.
+ *
+ * @return The current output rate (in bytes per second)
+ */
+ public long getOutputRate() {
+ return outputStream.getCurrentRate();
+ }
+
+ /**
* Sends a command with the given parameters, skipping all {@link
* Optional#absent()} optionals.
*
commandBuilder.append(parameter);
}
- logger.finest(String.format(">> %s", commandBuilder));
+ logger.trace(String.format(">> %s", commandBuilder));
outputStream.write((commandBuilder.toString() + "\r\n").getBytes("UTF-8"));
outputStream.flush();
}
public void close() throws IOException {
Closeables.close(outputStream, true);
Closeables.close(inputStreamReader, true);
+ Closeables.close(inputStream, true);
}
}
projects / xudocci.git / blobdiff