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- /*
- * Copyright (c) 2006-2017 DMDirc Developers
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
- package com.dmdirc.parser.irc;
-
- import com.dmdirc.parser.common.BaseSocketAwareParser;
- import com.dmdirc.parser.common.ChannelJoinRequest;
- import com.dmdirc.parser.common.ChildImplementations;
- import com.dmdirc.parser.common.CompositionState;
- import com.dmdirc.parser.common.IgnoreList;
- import com.dmdirc.parser.common.MyInfo;
- import com.dmdirc.parser.common.ParserError;
- import com.dmdirc.parser.common.QueuePriority;
- import com.dmdirc.parser.common.SRVRecord;
- import com.dmdirc.parser.common.SystemEncoder;
- import com.dmdirc.parser.events.ConnectErrorEvent;
- import com.dmdirc.parser.events.DebugInfoEvent;
- import com.dmdirc.parser.events.ErrorInfoEvent;
- import com.dmdirc.parser.events.PingFailureEvent;
- import com.dmdirc.parser.events.PingSentEvent;
- import com.dmdirc.parser.events.PingSuccessEvent;
- import com.dmdirc.parser.events.ServerErrorEvent;
- import com.dmdirc.parser.events.ServerReadyEvent;
- import com.dmdirc.parser.events.SocketCloseEvent;
- import com.dmdirc.parser.interfaces.ChannelInfo;
- import com.dmdirc.parser.interfaces.Encoder;
- import com.dmdirc.parser.interfaces.EncodingParser;
- import com.dmdirc.parser.interfaces.SecureParser;
- import com.dmdirc.parser.irc.IRCReader.ReadLine;
- import com.dmdirc.parser.irc.events.IRCDataInEvent;
- import com.dmdirc.parser.irc.events.IRCDataOutEvent;
- import com.dmdirc.parser.irc.outputqueue.OutputQueue;
- import com.dmdirc.parser.irc.outputqueue.PriorityOutputQueue;
-
- import java.io.IOException;
- import java.net.InetAddress;
- import java.net.Socket;
- import java.net.URI;
- import java.net.URISyntaxException;
- import java.net.UnknownHostException;
- import java.security.KeyManagementException;
- import java.security.NoSuchAlgorithmException;
- import java.security.SecureRandom;
- import java.time.Instant;
- import java.time.LocalDateTime;
- import java.time.ZoneId;
- import java.time.format.DateTimeFormatter;
- import java.time.format.DateTimeParseException;
- import java.util.ArrayList;
- import java.util.Arrays;
- import java.util.Collection;
- import java.util.Collections;
- import java.util.HashMap;
- import java.util.LinkedList;
- import java.util.List;
- import java.util.Map;
- import java.util.Queue;
- import java.util.Timer;
- import java.util.concurrent.Semaphore;
- import java.util.concurrent.atomic.AtomicBoolean;
-
- import javax.net.ssl.KeyManager;
- import javax.net.ssl.SSLContext;
- import javax.net.ssl.SSLSocket;
- import javax.net.ssl.SSLSocketFactory;
- import javax.net.ssl.TrustManager;
-
- import dagger.ObjectGraph;
-
- import static com.google.common.base.Preconditions.checkNotNull;
-
- /**
- * IRC Parser.
- */
- @ChildImplementations({
- IRCChannelClientInfo.class,
- IRCChannelInfo.class,
- IRCClientInfo.class
- })
- public class IRCParser extends BaseSocketAwareParser implements SecureParser, EncodingParser {
-
- /** Max length an outgoing line should be (NOT including \r\n). */
- public static final int MAX_LINELENGTH = 510;
- /** General Debug Information. */
- public static final int DEBUG_INFO = 1;
- /** Socket Debug Information. */
- public static final int DEBUG_SOCKET = 2;
- /** Processing Manager Debug Information. */
- public static final int DEBUG_PROCESSOR = 4;
- /** List Mode Queue Debug Information. */
- public static final int DEBUG_LMQ = 8;
-
- /** Attempt to update user host all the time, not just on Who/Add/NickChange. */
- public static final boolean ALWAYS_UPDATECLIENT = true;
- /** Byte used to show that a non-boolean mode is a list (b). */
- public static final byte MODE_LIST = 1;
- /** Byte used to show that a non-boolean mode is not a list, and requires a parameter to set (lk). */
- static final byte MODE_SET = 2;
- /** Byte used to show that a non-boolean mode is not a list, and requires a parameter to unset (k). */
- public static final byte MODE_UNSET = 4;
-
- /**
- * Default channel prefixes if none are specified by the IRCd.
- *
- * <p>These are the RFC 2811 specified prefixes: '#', '&', '!' and '+'.
- */
- private static final String DEFAULT_CHAN_PREFIX = "#&!+";
-
- /**
- * This is what the user wants settings to be.
- * Nickname here is *not* always accurate.<br><br>
- * ClientInfo variable tParser.getMyself() should be used for accurate info.
- */
- private MyInfo me = new MyInfo();
- /** Should PINGs be sent to the server to check if its alive? */
- private boolean checkServerPing = true;
- /** Timer for server ping. */
- private Timer pingTimer;
- /** Semaphore for access to pingTimer. */
- private final Semaphore pingTimerSem = new Semaphore(1);
- /** Is a ping needed? */
- private final AtomicBoolean pingNeeded = new AtomicBoolean(false);
- /** Time last ping was sent at. */
- private long pingTime;
- /** Current Server Lag. */
- private long serverLag;
- /** Last value sent as a ping argument. */
- private String lastPingValue = "";
- /**
- * Count down to next ping.
- * The timer fires every 10 seconds, this value is decreased every time the
- * timer fires.<br>
- * Once it reaches 0, we send a ping, and reset it to 6, this means we ping
- * the server every minute.
- *
- * @see #setPingTimerInterval
- */
- private int pingCountDown;
-
- /** Network name. This is "" if no network name is provided */
- public String networkName;
- /** This is what we think the nickname should be. */
- public String thinkNickname;
- /** Have we received the 001. */
- public boolean got001;
- /** Have we fired post005? */
- boolean post005;
- /** Has the thread started execution yet, (Prevents run() being called multiple times). */
- boolean hasBegan;
- /** Manager used to handle prefix modes. */
- private final PrefixModeManager prefixModes = new PrefixModeManager();
- /** Manager used to handle user modes (owxis etc). */
- private final ModeManager userModes = new ModeManager();
- /**
- * Manager used to handle channel boolean modes.
- * <p>
- * Channel modes discovered but not listed in 005 are stored as boolean modes automatically (and a ERROR_WARNING Error is called)
- */
- private final ModeManager chanModesBool = new ModeManager();
- /**
- * Hashtable storing known non-boolean chan modes (klbeI etc).
- * Non Boolean Modes (for Channels) are stored together in this hashtable, the value param
- * is used to show the type of variable. (List (1), Param just for set (2), Param for Set and Unset (2+4=6))<br><br>
- * <br>
- * see MODE_LIST<br>
- * see MODE_SET<br>
- * see MODE_UNSET<br>
- */
- public final Map<Character, Byte> chanModesOther = new HashMap<>();
- /** The last line of input received from the server */
- private ReadLine lastLine;
- /** Should the lastline (where given) be appended to the "data" part of any onErrorInfo call? */
- private boolean addLastLine;
- /** Channel Prefixes (ie # + etc). */
- private String chanPrefix = DEFAULT_CHAN_PREFIX;
- /** Hashtable storing all known clients based on nickname (in lowercase). */
- private final Map<String, IRCClientInfo> clientList = new HashMap<>();
- /** Hashtable storing all known channels based on chanel name (inc prefix - in lowercase). */
- private final Map<String, IRCChannelInfo> channelList = new HashMap<>();
- /** Reference to the ClientInfo object that references ourself. */
- private IRCClientInfo myself;
- /** Hashtable storing all information gathered from 005. */
- public final Map<String, String> h005Info = new HashMap<>();
- /** difference in ms between our time and the servers time (used for timestampedIRC). */
- private long tsdiff;
- /** Reference to the Processing Manager. */
- private final ProcessingManager myProcessingManager;
- /** Should we automatically disconnect on fatal errors?. */
- private boolean disconnectOnFatal = true;
- /** Current Socket State. */
- protected SocketState currentSocketState = SocketState.NULL;
- /**
- * The underlying socket connected to the IRC server. For SSL connections this socket will be
- * wrapped, and should therefore not be used to send or receive data.
- */
- private Socket rawSocket;
- /** The socket connected to the IRC server, used for sending or receiving data. */
- private Socket socket;
- /** Used for writing to the server. */
- private OutputQueue out;
- /** The encoder to use to encode incoming lines. */
- private Encoder encoder = new SystemEncoder();
- /** Used for reading from the server. */
- private IRCReader in;
- /** This is the default TrustManager for SSL Sockets, it trusts all ssl certs. */
- private final TrustManager[] trustAllCerts = {new TrustingTrustManager()};
- /** Should channels automatically request list modes? */
- private boolean autoListMode = true;
- /** Should part/quit/kick callbacks be fired before removing the user internally? */
- private boolean removeAfterCallback = true;
- /** This is the TrustManager used for SSL Sockets. */
- private TrustManager[] myTrustManager = trustAllCerts;
- /** The KeyManagers used for client certificates for SSL sockets. */
- private KeyManager[] myKeyManagers;
- /** This is list containing 001 - 005 inclusive. */
- private final List<String> serverInformationLines = new LinkedList<>();
- /** Map of capabilities and their state. */
- private final Map<String, CapabilityState> capabilities = new HashMap<>();
- /** Handler for whois responses. */
- private final WhoisResponseHandler whoisHandler;
- /** Used to synchronize calls to resetState. */
- private final Object resetStateSync = new Object();
-
- /**
- * Default constructor, ServerInfo and MyInfo need to be added separately (using IRC.me and IRC.server).
- */
- public IRCParser() {
- this((MyInfo) null);
- }
-
- /**
- * Constructor with ServerInfo, MyInfo needs to be added separately (using IRC.me).
- *
- * @param uri The URI to connect to
- */
- public IRCParser(final URI uri) {
- this(null, uri);
- }
-
- /**
- * Constructor with MyInfo, ServerInfo needs to be added separately (using IRC.server).
- *
- * @param myDetails Client information.
- */
- public IRCParser(final MyInfo myDetails) {
- this(myDetails, null);
- }
-
- /**
- * Creates a new IRCParser with the specified client details which will
- * connect to the specified URI.
- *
- * @since 0.6.3
- * @param myDetails The client details to use
- * @param uri The URI to connect to
- */
- public IRCParser(final MyInfo myDetails, final URI uri) {
- super(uri);
- setCallbackManager(new IRCParserCallbackManager(this::handleCallbackError));
-
- // TODO: There should be a factory or builder for parsers that can construct the graph
- final ObjectGraph graph = ObjectGraph.create(new IRCParserModule(this, prefixModes,
- userModes, chanModesBool));
- myProcessingManager = graph.get(ProcessingManager.class);
- myself = new IRCClientInfo(this, userModes, "myself").setFake(true);
-
- out = new PriorityOutputQueue();
- if (myDetails != null) {
- this.me = myDetails;
- }
-
- this.whoisHandler = new WhoisResponseHandler(this, getCallbackManager());
-
- setIgnoreList(new IgnoreList());
- setPingTimerInterval(10000);
- setPingTimerFraction(6);
- resetState();
-
- }
-
- /**
- * Get the current OutputQueue
- *
- * @return the current OutputQueue
- */
- public OutputQueue getOutputQueue() {
- return out;
- }
-
- /**
- * Sets the output queue that this parser will use.
- *
- * <p>Any existing items in the queue will be removed.
- *
- * @param queue The queue to be added.
- */
- public void setOutputQueue(final OutputQueue queue) throws IOException {
- checkNotNull(queue);
- out.clearQueue();
-
- if (socket != null) {
- queue.setOutputStream(socket.getOutputStream());
- }
-
- out = queue;
- }
-
- @Override
- public boolean compareURI(final URI uri) {
- // Get the old URI.
- final URI oldURI = getURI();
-
- // Check that protocol, host and port are the same.
- // Anything else won't change the server we connect to just what we
- // would do after connecting, so is not relevent.
- return uri.getScheme().equalsIgnoreCase(oldURI.getScheme())
- && uri.getHost().equalsIgnoreCase(oldURI.getHost())
- && (uri.getUserInfo() == null || uri.getUserInfo().isEmpty()
- || uri.getUserInfo().equalsIgnoreCase(oldURI.getUserInfo() == null ? "" : oldURI.getUserInfo()))
- && uri.getPort() == oldURI.getPort();
- }
-
- /**
- * From the given URI, get a URI to actually connect to.
- * This function will check for DNS SRV records for the given URI and use
- * those if found.
- * If no SRV records exist, then fallback to using the URI as-is but with
- * a default port specified if none is given.
- *
- * @param uri Requested URI.
- * @return A connectable version of the given URI.
- */
- private URI getConnectURI(final URI uri) {
- if (uri == null) { return null; }
-
- final boolean isSSL = uri.getScheme().endsWith("s");
- final int defaultPort = isSSL ? IrcConstants.DEFAULT_SSL_PORT : IrcConstants.DEFAULT_PORT;
-
- // Default to what the URI has already..
- int port = uri.getPort();
- String host = uri.getHost();
-
- // Look for SRV records if no port is specified.
- if (port == -1) {
- List<SRVRecord> recordList = new ArrayList<>();
- if (isSSL) {
- // There are a few possibilities for ssl...
- final String[] protocols = {"_ircs._tcp.", "_irc._tls."};
- for (final String protocol : protocols) {
- recordList = SRVRecord.getRecords(protocol + host);
- if (!recordList.isEmpty()) {
- break;
- }
- }
- } else {
- recordList = SRVRecord.getRecords("_irc._tcp." + host);
- }
- if (!recordList.isEmpty()) {
- host = recordList.get(0).getHost();
- port = recordList.get(0).getPort();
- }
- }
-
- // Fix the port if required.
- if (port == -1) { port = defaultPort; }
-
- // Return the URI to connect to based on the above.
- try {
- return new URI(uri.getScheme(), uri.getUserInfo(), host, port, uri.getPath(), uri.getQuery(), uri.getFragment());
- } catch (URISyntaxException ex) {
- // Shouldn't happen - but return the URI as-is if it does.
- return uri;
- }
- }
-
- @Override
- public Collection<? extends ChannelJoinRequest> extractChannels(final URI uri) {
- if (uri == null) {
- return Collections.<ChannelJoinRequest>emptyList();
- }
-
- String channelString = uri.getPath();
- if (uri.getRawQuery() != null && !uri.getRawQuery().isEmpty()) {
- channelString += '?' + uri.getRawQuery();
- }
-
- if (uri.getRawFragment() != null && !uri.getRawFragment().isEmpty()) {
- channelString += '#' + uri.getRawFragment();
- }
-
- if (!channelString.isEmpty() && channelString.charAt(0) == '/') {
- channelString = channelString.substring(1);
- }
-
- return extractChannels(channelString);
- }
-
- /**
- * Extracts a set of channels and optional keys from the specified String.
- * Channels are separated by commas, and keys are separated from their
- * channels by a space.
- *
- * @since 0.6.4
- * @param channels The string of channels to parse
- * @return A corresponding collection of join request objects
- */
- protected Collection<? extends ChannelJoinRequest> extractChannels(final String channels) {
- final Collection<ChannelJoinRequest> res = new ArrayList<>();
-
- for (String channel : channels.split(",")) {
- final String[] parts = channel.split(" ", 2);
-
- if (parts.length == 2) {
- res.add(new ChannelJoinRequest(parts[0], parts[1]));
- } else {
- res.add(new ChannelJoinRequest(parts[0]));
- }
- }
-
- return res;
- }
-
- /**
- * Get the current Value of autoListMode.
- *
- * @return Value of autoListMode (true if channels automatically ask for list modes on join, else false)
- */
- public boolean getAutoListMode() {
- return autoListMode;
- }
-
- /**
- * Set the current Value of autoListMode.
- *
- * @param newValue New value to set autoListMode
- */
- public void setAutoListMode(final boolean newValue) {
- autoListMode = newValue;
- }
-
- /**
- * Get the current Value of removeAfterCallback.
- *
- * @return Value of removeAfterCallback (true if kick/part/quit callbacks are fired before internal removal)
- */
- public boolean getRemoveAfterCallback() {
- return removeAfterCallback;
- }
-
- /**
- * Get the current Value of removeAfterCallback.
- *
- * @param newValue New value to set removeAfterCallback
- */
- public void setRemoveAfterCallback(final boolean newValue) {
- removeAfterCallback = newValue;
- }
-
- /**
- * Get the current Value of addLastLine.
- *
- * @return Value of addLastLine (true if lastLine info will be automatically
- * added to the errorInfo data line). This should be true if lastLine
- * isn't handled any other way.
- */
- public boolean getAddLastLine() {
- return addLastLine;
- }
-
- /**
- * Get the current Value of addLastLine.
- *
- * @param newValue New value to set addLastLine
- */
- public void setAddLastLine(final boolean newValue) {
- addLastLine = newValue;
- }
-
- /**
- * Get the current socket State.
- *
- * @since 0.6.3m1
- * @return Current {@link SocketState}
- */
- public SocketState getSocketState() {
- return currentSocketState;
- }
-
- /**
- * Get a reference to the Processing Manager.
- *
- * @return Reference to the CallbackManager
- */
- public ProcessingManager getProcessingManager() {
- return myProcessingManager;
- }
-
- /**
- * Get a reference to the default TrustManager for SSL Sockets.
- *
- * @return a reference to trustAllCerts
- */
- public TrustManager[] getDefaultTrustManager() {
- return Arrays.copyOf(trustAllCerts, trustAllCerts.length);
- }
-
- /**
- * Get a reference to the current TrustManager for SSL Sockets.
- *
- * @return a reference to myTrustManager;
- */
- public TrustManager[] getTrustManager() {
- return Arrays.copyOf(myTrustManager, myTrustManager.length);
- }
-
- @Override
- public void setTrustManagers(final TrustManager... managers) {
- myTrustManager = managers == null ? null : Arrays.copyOf(managers, managers.length);
- }
-
- @Override
- public void setKeyManagers(final KeyManager... managers) {
- myKeyManagers = managers == null ? null : Arrays.copyOf(managers, managers.length);
- }
-
- //---------------------------------------------------------------------------
- // Start Callbacks
- //---------------------------------------------------------------------------
-
- /**
- * Callback to all objects implementing the ServerError Callback.
- *
- * @param message The error message
- */
- protected void callServerError(final String message) {
- getCallbackManager().publish(new ServerErrorEvent(this, LocalDateTime.now(), message));
- }
-
- /**
- * Callback to all objects implementing the DataIn Callback.
- *
- * @param line Incoming Line.
- */
- protected void callDataIn(final ReadLine line) {
- getCallbackManager().publish(new IRCDataInEvent(this, LocalDateTime.now(), line));
- }
-
- /**
- * Callback to all objects implementing the DataOut Callback.
- *
- * @param data Outgoing Data
- * @param fromParser True if parser sent the data, false if sent using .sendLine
- */
- protected void callDataOut(final String data, final boolean fromParser) {
- getCallbackManager().publish(new IRCDataOutEvent(this, LocalDateTime.now(), data));
- }
-
- /**
- * Callback to all objects implementing the DebugInfo Callback.
- *
- * @param level Debugging Level (DEBUG_INFO, DEBUG_SOCKET etc)
- * @param data Debugging Information as a format string
- * @param args Formatting String Options
- */
- public void callDebugInfo(final int level, final String data, final Object... args) {
- callDebugInfo(level, String.format(data, args));
- }
-
- /**
- * Callback to all objects implementing the DebugInfo Callback.
- *
- * @param level Debugging Level (DEBUG_INFO, DEBUG_SOCKET etc)
- * @param data Debugging Information
- */
- protected void callDebugInfo(final int level, final String data) {
- getCallbackManager().publish(new DebugInfoEvent(this, LocalDateTime.now(), level, data));
- }
-
- /**
- * Callback to all objects implementing the IErrorInfo Interface.
- *
- * @param errorInfo ParserError object representing the error.
- */
- public void callErrorInfo(final ParserError errorInfo) {
- getCallbackManager().publish(new ErrorInfoEvent(this, LocalDateTime.now(), errorInfo));
- }
-
- /**
- * Callback to all objects implementing the IConnectError Interface.
- *
- * @param errorInfo ParserError object representing the error.
- */
- protected void callConnectError(final ParserError errorInfo) {
- getCallbackManager().publish(new ConnectErrorEvent(this, LocalDateTime.now(), errorInfo));
- }
-
- /**
- * Callback to all objects implementing the SocketClosed Callback.
- */
- protected void callSocketClosed() {
- // Don't allow state resetting whilst there may be handlers requiring
- // state.
- synchronized (resetStateSync) {
- getCallbackManager().publish(new SocketCloseEvent(this, LocalDateTime.now()));
- }
- }
-
- /**
- * Callback to all objects implementing the PingFailed Callback.
- */
- protected void callPingFailed() {
- getCallbackManager().publish(new PingFailureEvent(this, LocalDateTime.now()));
- }
-
- /**
- * Callback to all objects implementing the PingSent Callback.
- */
- protected void callPingSent() {
- getCallbackManager().publish(new PingSentEvent(this, LocalDateTime.now()));
- }
-
- /**
- * Callback to all objects implementing the PingSuccess Callback.
- */
- protected void callPingSuccess() {
- getCallbackManager().publish(new PingSuccessEvent(this, LocalDateTime.now()));
- }
-
- /**
- * Callback to all objects implementing the Post005 Callback.
- */
- protected synchronized void callPost005() {
- if (post005) {
- return;
- }
-
- post005 = true;
-
- if (!h005Info.containsKey(IrcConstants.ISUPPORT_CHANNEL_USER_PREFIXES)) {
- parsePrefixModes();
- }
- if (!h005Info.containsKey(IrcConstants.ISUPPORT_USER_MODES)) {
- parseUserModes();
- }
- if (!h005Info.containsKey(IrcConstants.ISUPPORT_CHANNEL_MODES)) {
- parseChanModes();
- }
-
- whoisHandler.start();
- getCallbackManager().publish(new ServerReadyEvent(this, LocalDateTime.now()));
- }
-
- //---------------------------------------------------------------------------
- // End Callbacks
- //---------------------------------------------------------------------------
- /** Reset internal state (use before doConnect). */
- private void resetState() {
- synchronized (resetStateSync) {
- // Reset General State info
- got001 = false;
- post005 = false;
- // Clear the hash tables
- channelList.clear();
- clientList.clear();
- h005Info.clear();
- prefixModes.clear();
- chanModesOther.clear();
- chanModesBool.clear();
- userModes.clear();
- chanPrefix = DEFAULT_CHAN_PREFIX;
- // Clear output queue.
- out.clearQueue();
- setServerName("");
- networkName = "";
- lastLine = null;
- myself = new IRCClientInfo(this, userModes, "myself").setFake(true);
-
- synchronized (serverInformationLines) {
- serverInformationLines.clear();
- }
- stopPingTimer();
-
- currentSocketState = SocketState.CLOSED;
- setEncoding(IRCEncoding.RFC1459);
-
- whoisHandler.stop();
- }
- }
-
- /**
- * Called after other error callbacks.
- * CallbackOnErrorInfo automatically calls this *AFTER* any registered callbacks
- * for it are called.
- *
- * @param errorInfo ParserError object representing the error.
- * @param called True/False depending on the the success of other callbacks.
- */
- public void onPostErrorInfo(final ParserError errorInfo, final boolean called) {
- if (errorInfo.isFatal() && disconnectOnFatal) {
- disconnect("Fatal Parser Error");
- }
- }
-
- /**
- * Get the current Value of disconnectOnFatal.
- *
- * @return Value of disconnectOnFatal (true if the parser automatically disconnects on fatal errors, else false)
- */
- public boolean getDisconnectOnFatal() {
- return disconnectOnFatal;
- }
-
- /**
- * Set the current Value of disconnectOnFatal.
- *
- * @param newValue New value to set disconnectOnFatal
- */
- public void setDisconnectOnFatal(final boolean newValue) {
- disconnectOnFatal = newValue;
- }
-
- /**
- * Connect to IRC.
- *
- * @throws IOException if the socket can not be connected
- * @throws NoSuchAlgorithmException if SSL is not available
- * @throws KeyManagementException if the trustManager is invalid
- */
- private void doConnect() throws IOException, NoSuchAlgorithmException, KeyManagementException {
- if (getURI() == null || getURI().getHost() == null) {
- throw new UnknownHostException("Unspecified host.");
- }
-
- resetState();
- callDebugInfo(DEBUG_SOCKET, "Connecting to " + getURI().getHost() + ':' + getURI().getPort());
-
- currentSocketState = SocketState.OPENING;
-
- final URI connectUri = getConnectURI(getURI());
-
- rawSocket = getSocketFactory().createSocket(connectUri.getHost(), connectUri.getPort());
-
- if (getURI().getScheme().endsWith("s")) {
- callDebugInfo(DEBUG_SOCKET, "Server is SSL.");
-
- if (myTrustManager == null) {
- myTrustManager = trustAllCerts;
- }
-
- final SSLContext sc = SSLContext.getInstance("SSL");
- sc.init(myKeyManagers, myTrustManager, new SecureRandom());
-
- final SSLSocketFactory socketFactory = sc.getSocketFactory();
- socket = socketFactory.createSocket(rawSocket, getURI().getHost(), getURI()
- .getPort(), false);
-
- // Manually start a handshake so we get proper SSL errors here,
- // and so that we can control the connection timeout
- final int timeout = socket.getSoTimeout();
- socket.setSoTimeout(10000);
- ((SSLSocket) socket).startHandshake();
- socket.setSoTimeout(timeout);
-
- currentSocketState = SocketState.OPENING;
- } else {
- socket = rawSocket;
- }
-
- callDebugInfo(DEBUG_SOCKET, "\t-> Opening socket output stream PrintWriter");
- out.setOutputStream(socket.getOutputStream());
- out.setQueueEnabled(true);
- currentSocketState = SocketState.OPEN;
- callDebugInfo(DEBUG_SOCKET, "\t-> Opening socket input stream BufferedReader");
- in = new IRCReader(socket.getInputStream(), encoder);
- callDebugInfo(DEBUG_SOCKET, "\t-> Socket Opened");
- }
-
- /**
- * Send server connection strings (NICK/USER/PASS).
- */
- protected void sendConnectionStrings() {
- sendString("CAP LS");
- if (getURI().getUserInfo() != null && !getURI().getUserInfo().isEmpty()) {
- sendString("PASS " + getURI().getUserInfo());
- }
- sendString("NICK " + me.getNickname());
- thinkNickname = me.getNickname();
- String localhost;
- try {
- localhost = InetAddress.getLocalHost().getHostAddress();
- } catch (UnknownHostException uhe) {
- localhost = "*";
- }
- sendString("USER " + me.getUsername() + ' ' + localhost + ' ' + getURI().getHost() + " :" + me.getRealname());
- }
-
- /**
- * Handle an onConnect error.
- *
- * @param e Exception to handle
- * @param isUserError Is this a user error?
- */
- private void handleConnectException(final Exception e, final boolean isUserError) {
- callDebugInfo(DEBUG_SOCKET, "Error Connecting (" + e.getMessage() + "), Aborted");
- final ParserError ei = new ParserError(
- ParserError.ERROR_ERROR + (isUserError ? ParserError.ERROR_USER : 0),
- "Exception with server socket", getLastLine());
- ei.setException(e);
- callConnectError(ei);
-
- if (currentSocketState != SocketState.CLOSED) {
- currentSocketState = SocketState.CLOSED;
- callSocketClosed();
- }
- resetState();
- }
-
- /**
- * Begin execution.
- * Connect to server, and start parsing incoming lines
- */
- @Override
- public void run() {
- callDebugInfo(DEBUG_INFO, "Begin Thread Execution");
- if (hasBegan) {
- return;
- } else {
- hasBegan = true;
- }
- try {
- doConnect();
- } catch (IOException e) {
- handleConnectException(e, true);
- return;
- } catch (NoSuchAlgorithmException | KeyManagementException e) {
- handleConnectException(e, false);
- return;
- }
-
- callDebugInfo(DEBUG_SOCKET, "Socket Connected");
-
- sendConnectionStrings();
-
- while (true) {
- try {
- lastLine = in.readLine(); // Blocking :/
- if (lastLine == null) {
- if (currentSocketState != SocketState.CLOSED) {
- currentSocketState = SocketState.CLOSED;
- callSocketClosed();
- }
- resetState();
- break;
- } else if (currentSocketState != SocketState.CLOSING) {
- processLine(lastLine);
- }
- } catch (IOException e) {
- callDebugInfo(DEBUG_SOCKET, "Exception in main loop (" + e.getMessage() + "), Aborted");
-
- if (currentSocketState != SocketState.CLOSED) {
- currentSocketState = SocketState.CLOSED;
- callSocketClosed();
- }
- resetState();
- break;
- }
- }
- callDebugInfo(DEBUG_INFO, "End Thread Execution");
- }
-
- @Override
- public void shutdown() {
- try {
- // See note at disconnect() method for why we close rawSocket.
- if (rawSocket != null) {
- rawSocket.close();
- socket = null;
- rawSocket = null;
- }
- } catch (IOException e) {
- callDebugInfo(DEBUG_SOCKET, "Could not close socket");
- }
- super.shutdown();
- }
-
- /**
- * Get the trailing parameter for a line.
- * The parameter is everything after the first occurrence of " :" to the last token in the line after a space.
- *
- * @param line Line to get parameter for
- * @return Parameter of the line
- */
- public static String getParam(final String line) {
- final String[] params = line.split(" :", 2);
- return params[params.length - 1];
- }
-
- /**
- * Tokenise a line.
- * splits by " " up to the first " :" everything after this is a single token
- *
- * @param line Line to tokenise
- * @return Array of tokens
- */
- public static String[] tokeniseLine(final String line) {
- if (line == null || line.isEmpty()) {
- return new String[]{""};
- }
-
- int lastarg = line.indexOf(" :");
- String[] tokens;
-
- // Check for IRC Tags.
- if (line.charAt(0) == '@') {
- // We have tags.
- boolean hasIRCv3Tags = true;
- tokens = line.split(" ", 2);
- final int tsEnd = tokens[0].indexOf('@', 1);
- if (tsEnd > -1) {
- try {
- final long ts = Long.parseLong(tokens[0].substring(1, tsEnd));
-
- // We might have both IRCv3 tags and TSIRC, with TSIRC first, eg:
- // @123@@tag=value :test ing
- hasIRCv3Tags = tokens[0].length() > tsEnd && tokens[0].charAt(tsEnd) == '@';
- } catch (final NumberFormatException nfe) { /* Not a timestamp. */ }
- }
-
- if (hasIRCv3Tags) {
- // IRCv3 Tags, last arg is actually the second " :"
- lastarg = line.indexOf(" :", lastarg+1);
- }
- }
-
- if (lastarg > -1) {
- final String[] temp = line.substring(0, lastarg).split(" ");
- tokens = new String[temp.length + 1];
- System.arraycopy(temp, 0, tokens, 0, temp.length);
- tokens[temp.length] = line.substring(lastarg + 2);
- } else {
- tokens = line.split(" ");
- }
-
- if (tokens.length < 1) {
- tokens = new String[]{""};
- }
-
- return tokens;
- }
-
- @Override
- public IRCClientInfo getClient(final String details) {
- final String sWho = getStringConverter().toLowerCase(IRCClientInfo.parseHost(details));
-
- if (clientList.containsKey(sWho)) {
- return clientList.get(sWho);
- } else {
- return new IRCClientInfo(this, userModes, details).setFake(true);
- }
- }
-
- public boolean isKnownClient(final String host) {
- final String sWho = getStringConverter().toLowerCase(IRCClientInfo.parseHost(host));
- return clientList.containsKey(sWho);
- }
-
- @Override
- public IRCChannelInfo getChannel(final String channel) {
- synchronized (channelList) {
- return channelList.get(getStringConverter().toLowerCase(channel));
- }
- }
-
- @Override
- public void sendInvite(final String channel, final String user) {
- sendRawMessage("INVITE " + user + ' ' + channel);
- }
-
- @Override
- public void sendWhois(final String nickname) {
- sendRawMessage("WHOIS " + nickname);
- }
-
- @Override
- public void sendRawMessage(final String message) {
- sendString(message, QueuePriority.NORMAL, false);
- }
-
- @Override
- public void sendRawMessage(final String message, final QueuePriority priority) {
- sendString(message, priority, false);
- }
-
- /**
- * Send a line to the server and add proper line ending.
- *
- * @param line Line to send (\r\n termination is added automatically)
- * @return True if line was sent, else false.
- */
- public boolean sendString(final String line) {
- return sendString(line, QueuePriority.NORMAL, true);
- }
-
- /**
- * Send a line to the server and add proper line ending.
- * If a non-empty argument is given, it is appended as a trailing argument
- * (i.e., separated by " :"); otherwise, the line is sent as-is.
- *
- * @param line Line to send
- * @param argument Trailing argument for the command, if any
- * @return True if line was sent, else false.
- */
- protected boolean sendString(final String line, final String argument) {
- return sendString(argument.isEmpty() ? line : line + " :" + argument);
- }
-
- /**
- * Send a line to the server and add proper line ending.
- *
- * @param line Line to send (\r\n termination is added automatically)
- * @param priority Priority of this line.
- * @return True if line was sent, else false.
- */
- public boolean sendString(final String line, final QueuePriority priority) {
- return sendString(line, priority, true);
- }
-
- /**
- * Send a line to the server and add proper line ending.
- *
- * @param line Line to send (\r\n termination is added automatically)
- * @param priority Priority of this line.
- * @param fromParser is this line from the parser? (used for callDataOut)
- * @return True if line was sent, else false.
- */
- protected boolean sendString(final String line, final QueuePriority priority, final boolean fromParser) {
- if (getSocketState() != SocketState.OPEN) {
- return false;
- }
- callDataOut(line, fromParser);
- out.sendLine(line, priority);
- parseOutgoingLine(line);
-
- return true;
- }
-
- /**
- * Parses a line that has been sent to the server in order to track state.
- *
- * @param line The line to be parsed.
- */
- private void parseOutgoingLine(final String line) {
- final String[] newLine = tokeniseLine(line);
- if ("away".equalsIgnoreCase(newLine[0]) && newLine.length > 1) {
- myself.setAwayReason(newLine[newLine.length - 1]);
- } else if ("mode".equalsIgnoreCase(newLine[0]) && newLine.length == 3) {
- final IRCChannelInfo channel = getChannel(newLine[1]);
- if (channel != null) {
- // This makes sure we don't add the same item to the LMQ twice,
- // even if its requested twice, as the ircd will only reply once
- final Queue<Character> foundModes = new LinkedList<>();
- final Queue<Character> listModeQueue = channel.getListModeQueue();
- for (int i = 0; i < newLine[2].length(); ++i) {
- final Character mode = newLine[2].charAt(i);
- callDebugInfo(DEBUG_LMQ, "Intercepted mode request for " + channel + " for mode " + mode);
- if (chanModesOther.containsKey(mode) && chanModesOther.get(mode) == MODE_LIST) {
- if (foundModes.contains(mode)) {
- callDebugInfo(DEBUG_LMQ, "Already added to LMQ");
- } else {
- listModeQueue.offer(mode);
- foundModes.offer(mode);
- callDebugInfo(DEBUG_LMQ, "Added to LMQ");
- }
- }
- }
- }
- }
- }
-
- @Override
- public String getNetworkName() {
- return networkName;
- }
-
- @Override
- public String getLastLine() {
- return lastLine == null ? "" : lastLine.getLine();
- }
-
- @Override
- public List<String> getServerInformationLines() {
- synchronized (serverInformationLines) {
- return new LinkedList<>(serverInformationLines);
- }
- }
-
- /**
- * Process a line and call relevant methods for handling.
- *
- * @param line Line read from the IRC server
- */
- @SuppressWarnings("fallthrough")
- protected void processLine(final ReadLine line) {
- callDataIn(line);
- final String[] token = line.getTokens();
- LocalDateTime lineTS = LocalDateTime.now();
-
- if (line.getTags().containsKey("tsirc date")) {
- try {
- final long ts = Long.parseLong(line.getTags().get("tsirc date")) - tsdiff;
- lineTS = LocalDateTime.ofInstant(Instant.ofEpochSecond(ts / 1000L, (int) (ts % 1000L)),
- ZoneId.systemDefault());
- } catch (final NumberFormatException nfe) { /* Do nothing. */ }
- } else if (line.getTags().containsKey("time")) {
- try {
- lineTS = LocalDateTime.parse(line.getTags().get("time"),
- DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'"));
- } catch (final DateTimeParseException pe) { /* Do nothing. */ }
- }
-
- setPingNeeded(false);
-
- if (token.length < 2) {
- return;
- }
-
- try {
- final String sParam = token[1];
- if ("PING".equalsIgnoreCase(token[0]) || "PING".equalsIgnoreCase(token[1])) {
- sendString("PONG :" + sParam, QueuePriority.HIGH);
- } else if ("PONG".equalsIgnoreCase(token[0]) || "PONG".equalsIgnoreCase(token[1])) {
- if (!lastPingValue.isEmpty() && lastPingValue.equals(token[token.length - 1])) {
- lastPingValue = "";
- serverLag = System.currentTimeMillis() - pingTime;
- callPingSuccess();
- }
- } else if ("ERROR".equalsIgnoreCase(token[0])) {
- final StringBuilder errorMessage = new StringBuilder();
- for (int i = 1; i < token.length; ++i) {
- errorMessage.append(token[i]);
- }
- callServerError(errorMessage.toString());
- } else if ("TSIRC".equalsIgnoreCase(token[1]) && token.length > 3) {
- if ("1".equals(token[2])) {
- try {
- final long ts = Long.parseLong(token[3]);
- tsdiff = ts - System.currentTimeMillis();
- } catch (final NumberFormatException nfe) { /* Do nothing. */ }
- }
- } else {
- int nParam;
- if (got001) {
- // Freenode sends a random notice in a stupid place, others might do aswell
- // These shouldn't cause post005 to be fired, so handle them here.
- if ("NOTICE".equalsIgnoreCase(token[0]) ||
- token.length > 2 && "NOTICE".equalsIgnoreCase(token[2])) {
- try {
- myProcessingManager.process(lineTS, "Notice Auth", token);
- } catch (ProcessorNotFoundException e) {
- // ???
- }
-
- return;
- }
-
- if (!post005) {
- try {
- nParam = Integer.parseInt(token[1]);
- } catch (NumberFormatException e) {
- nParam = -1;
- }
-
- if (nParam < 0 || nParam > 5) {
- callPost005();
- } else {
- // Store 001 - 005 for informational purposes.
- synchronized (serverInformationLines) {
- serverInformationLines.add(line.getLine());
- }
- }
- }
- // After 001 we potentially care about everything!
- try {
- myProcessingManager.process(lineTS, sParam, token);
- } catch (ProcessorNotFoundException e) {
- // ???
- }
- } else {
- // Before 001 we don't care about much.
- try {
- nParam = Integer.parseInt(token[1]);
- } catch (NumberFormatException e) {
- nParam = -1;
- }
- switch (nParam) {
- case 1: // 001 - Welcome to IRC
- synchronized (serverInformationLines) {
- serverInformationLines.add(line.getLine());
- }
- // Fallthrough
- case IrcConstants.NUMERIC_ERROR_PASSWORD_MISMATCH:
- case IrcConstants.NUMERIC_ERROR_NICKNAME_IN_USE:
- try {
- myProcessingManager.process(lineTS, sParam, token);
- } catch (ProcessorNotFoundException e) {
- }
- break;
- default: // Unknown - Send to Notice Auth
- // Some networks send a CTCP during the auth process, handle it
- if (token.length > 3 && !token[3].isEmpty() && token[3].charAt(0) == (char) 1 && token[3].charAt(token[3].length() - 1) == (char) 1) {
- try {
- myProcessingManager.process(lineTS, sParam, token);
- } catch (ProcessorNotFoundException e) {
- }
- break;
- }
- // Some networks may send a NICK message if you nick change before 001
- // Eat it up so that it isn't treated as a notice auth.
- if ("NICK".equalsIgnoreCase(token[1])) {
- break;
- }
-
- // CAP also happens here, so try that.
- if ("CAP".equalsIgnoreCase(token[1])) {
- myProcessingManager.process(lineTS, sParam, token);
- break;
- }
-
- // Otherwise, send to Notice Auth
- try {
- myProcessingManager.process(lineTS, "Notice Auth", token);
- } catch (ProcessorNotFoundException e) {
- }
- break;
- }
- }
- }
- } catch (Exception e) {
- final ParserError ei = new ParserError(ParserError.ERROR_FATAL, "Fatal Exception in Parser.", getLastLine());
- ei.setException(e);
- callErrorInfo(ei);
- }
- }
-
- /** The IRCStringConverter for this parser */
- private IRCStringConverter stringConverter;
-
- @Override
- public IRCStringConverter getStringConverter() {
- if (stringConverter == null) {
- stringConverter = new IRCStringConverter(IRCEncoding.RFC1459);
- }
- return stringConverter;
- }
-
- /**
- * Sets the encoding that this parser's string converter should use.
- *
- * @param encoding The encoding to use
- */
- public void setEncoding(final IRCEncoding encoding) {
- stringConverter = new IRCStringConverter(encoding);
- }
-
- /**
- * Check the state of the requested capability.
- *
- * @param capability The capability to check the state of.
- * @return State of the requested capability.
- */
- public CapabilityState getCapabilityState(final String capability) {
- synchronized (capabilities) {
- if (capabilities.containsKey(capability.toLowerCase())) {
- return capabilities.get(capability.toLowerCase());
- } else {
- return CapabilityState.INVALID;
- }
- }
- }
-
- /**
- * Set the state of the requested capability.
- *
- * @param capability Requested capability
- * @param state State to set for capability
- */
- public void setCapabilityState(final String capability, final CapabilityState state) {
- synchronized (capabilities) {
- if (capabilities.containsKey(capability.toLowerCase())) {
- capabilities.put(capability.toLowerCase(), state);
- }
- }
- }
-
- /**
- * Add the given capability as a supported capability by the server.
- *
- * @param capability Requested capability
- */
- public void addCapability(final String capability) {
- synchronized (capabilities) {
- capabilities.put(capability.toLowerCase(), CapabilityState.DISABLED);
- }
- }
-
- /**
- * Get the server capabilities and their current state.
- *
- * @return Server capabilities and their current state.
- */
- public Map<String, CapabilityState> getCapabilities() {
- synchronized (capabilities) {
- return new HashMap<>(capabilities);
- }
- }
-
- /**
- * Process CHANMODES from 005.
- */
- public void parseChanModes() {
- final StringBuilder sDefaultModes = new StringBuilder("b,k,l,");
- String modeStr;
- if (h005Info.containsKey(IrcConstants.ISUPPORT_USER_CHANNEL_MODES)) {
- if (getServerType() == ServerType.DANCER) {
- sDefaultModes.insert(0, "dqeI");
- } else if (getServerType() == ServerType.AUSTIRC) {
- sDefaultModes.insert(0, 'e');
- }
- modeStr = h005Info.get(IrcConstants.ISUPPORT_USER_CHANNEL_MODES);
- for (int i = 0; i < modeStr.length(); ++i) {
- final char mode = modeStr.charAt(i);
- if (!prefixModes.isPrefixMode(mode)
- && sDefaultModes.indexOf(Character.toString(mode)) < 0) {
- sDefaultModes.append(mode);
- }
- }
- } else {
- sDefaultModes.append("imnpstrc");
- }
- if (h005Info.containsKey(IrcConstants.ISUPPORT_CHANNEL_MODES)) {
- modeStr = h005Info.get(IrcConstants.ISUPPORT_CHANNEL_MODES);
- } else {
- modeStr = sDefaultModes.toString();
- h005Info.put(IrcConstants.ISUPPORT_CHANNEL_MODES, modeStr);
- }
- String[] bits = modeStr.split(",", 5);
- if (bits.length < 4) {
- modeStr = sDefaultModes.toString();
- callErrorInfo(new ParserError(ParserError.ERROR_ERROR, "CHANMODES String not valid. " +
- "Using default string of \"" + modeStr + '"', getLastLine()));
- h005Info.put(IrcConstants.ISUPPORT_CHANNEL_MODES, modeStr);
- bits = modeStr.split(",", 5);
- }
-
- // resetState
- chanModesOther.clear();
-
- // List modes.
- for (int i = 0; i < bits[0].length(); ++i) {
- final Character cMode = bits[0].charAt(i);
- callDebugInfo(DEBUG_INFO, "Found List Mode: %c", cMode);
- if (!chanModesOther.containsKey(cMode)) {
- chanModesOther.put(cMode, MODE_LIST);
- }
- }
-
- // Param for Set and Unset.
- final Byte nBoth = MODE_SET + MODE_UNSET;
- for (int i = 0; i < bits[1].length(); ++i) {
- final Character cMode = bits[1].charAt(i);
- callDebugInfo(DEBUG_INFO, "Found Set/Unset Mode: %c", cMode);
- if (!chanModesOther.containsKey(cMode)) {
- chanModesOther.put(cMode, nBoth);
- }
- }
-
- // Param just for Set
- for (int i = 0; i < bits[2].length(); ++i) {
- final Character cMode = bits[2].charAt(i);
- callDebugInfo(DEBUG_INFO, "Found Set Only Mode: %c", cMode);
- if (!chanModesOther.containsKey(cMode)) {
- chanModesOther.put(cMode, MODE_SET);
- }
- }
-
- // Boolean Mode
- chanModesBool.set(bits[3]);
- callDebugInfo(DEBUG_INFO, "Found boolean modes: %s", bits[3]);
- }
-
- @Override
- public String getChannelUserModes() {
- return prefixModes.getPrefixes();
- }
-
- @Override
- public String getBooleanChannelModes() {
- return chanModesBool.getModes();
- }
-
- @Override
- public String getListChannelModes() {
- return getOtherModeString(MODE_LIST);
- }
-
- @Override
- public String getParameterChannelModes() {
- return getOtherModeString(MODE_SET);
- }
-
- @Override
- public String getDoubleParameterChannelModes() {
- return getOtherModeString((byte) (MODE_SET + MODE_UNSET));
- }
-
- @Override
- public String getChannelPrefixes() {
- return chanPrefix;
- }
-
- /**
- * Get modes from hChanModesOther that have a specific value.
- * Modes are returned in alphabetical order
- *
- * @param value Value mode must have to be included
- * @return All the currently known Set-Unset modes
- */
- protected String getOtherModeString(final byte value) {
- final char[] modes = new char[chanModesOther.size()];
- int i = 0;
- for (char cTemp : chanModesOther.keySet()) {
- final Byte nTemp = chanModesOther.get(cTemp);
- if (nTemp == value) {
- modes[i] = cTemp;
- i++;
- }
- }
- // Alphabetically sort the array
- Arrays.sort(modes);
- return new String(modes).trim();
- }
-
- @Override
- public String getUserModes() {
- if (h005Info.containsKey(IrcConstants.ISUPPORT_USER_MODES)) {
- return h005Info.get(IrcConstants.ISUPPORT_USER_MODES);
- } else {
- return "";
- }
- }
-
- /**
- * Process USERMODES from 004.
- */
- public void parseUserModes() {
- final String modeStr;
- if (h005Info.containsKey(IrcConstants.ISUPPORT_USER_MODES)) {
- modeStr = h005Info.get(IrcConstants.ISUPPORT_USER_MODES);
- } else {
- final String sDefaultModes = "nwdoi";
- modeStr = sDefaultModes;
- h005Info.put(IrcConstants.ISUPPORT_USER_MODES, sDefaultModes);
- }
-
- userModes.set(modeStr);
- }
-
- /**
- * Resets the channel prefix property to the default, RFC specified value.
- */
- public void resetChanPrefix() {
- chanPrefix = DEFAULT_CHAN_PREFIX;
- }
-
- /**
- * Sets the set of possible channel prefixes to those in the given value.
- *
- * @param value The new set of channel prefixes.
- */
- public void setChanPrefix(final String value) {
- chanPrefix = value;
- }
-
- /**
- * Process PREFIX from 005.
- */
- public void parsePrefixModes() {
- final String sDefaultModes = "(ohv)@%+";
- String modeStr;
- if (h005Info.containsKey(IrcConstants.ISUPPORT_CHANNEL_USER_PREFIXES)) {
- modeStr = h005Info.get(IrcConstants.ISUPPORT_CHANNEL_USER_PREFIXES);
- } else {
- modeStr = sDefaultModes;
- }
- if ("(".equals(modeStr.substring(0, 1))) {
- modeStr = modeStr.substring(1);
- } else {
- modeStr = sDefaultModes.substring(1);
- h005Info.put(IrcConstants.ISUPPORT_CHANNEL_USER_PREFIXES, sDefaultModes);
- }
-
- int closingIndex = modeStr.indexOf(')');
- if (closingIndex * 2 + 1 != modeStr.length()) {
- callErrorInfo(new ParserError(ParserError.ERROR_ERROR,
- "PREFIX String not valid. Using default string of \"" + modeStr +
- '"', getLastLine()));
- h005Info.put(IrcConstants.ISUPPORT_CHANNEL_USER_PREFIXES, sDefaultModes);
- modeStr = sDefaultModes.substring(1);
- closingIndex = modeStr.indexOf(')');
- }
-
- // The modes passed from the server are in descending order of importance, we want to
- // store them in ascending, so reverse them:
- final String reversedModes = new StringBuilder(modeStr).reverse().toString();
-
- prefixModes.setModes(reversedModes.substring(closingIndex + 1),
- reversedModes.substring(0, closingIndex));
- }
-
- @Override
- public void joinChannels(final ChannelJoinRequest... channels) {
- // We store a map from key->channels to allow intelligent joining of
- // channels using as few JOIN commands as needed.
- final Map<String, StringBuffer> joinMap = new HashMap<>();
-
- for (ChannelJoinRequest channel : channels) {
- // Make sure we have a list to put stuff in.
- StringBuffer list = joinMap.computeIfAbsent(channel.getPassword(), k -> new StringBuffer());
-
- // Add the channel to the list. If the name is invalid and
- // autoprefix is off we will just skip this channel.
- if (!channel.getName().isEmpty()) {
- if (list.length() > 0) {
- list.append(',');
- }
- if (!isValidChannelName(channel.getName())) {
- if (chanPrefix.isEmpty()) {
- // TODO: This is wrong - empty chan prefix means the
- // IRCd supports no channels.
- list.append('#');
- } else {
- list.append(chanPrefix.charAt(0));
- }
- }
- list.append(channel.getName());
- }
- }
-
- for (Map.Entry<String, StringBuffer> entrySet : joinMap.entrySet()) {
- final String thisKey = entrySet.getKey();
- final String channelString = entrySet.getValue().toString();
- if (!channelString.isEmpty()) {
- if (thisKey == null || thisKey.isEmpty()) {
- sendString("JOIN " + channelString);
- } else {
- sendString("JOIN " + channelString + ' ' + thisKey);
- }
- }
- }
- }
-
- /**
- * Leave a Channel.
- *
- * @param channel Name of channel to part
- * @param reason Reason for leaving (Nothing sent if sReason is "")
- */
- public void partChannel(final String channel, final String reason) {
- if (getChannel(channel) == null) {
- return;
- }
-
- sendString("PART " + channel, reason);
- }
-
- /**
- * Set Nickname.
- *
- * @param nickname New nickname wanted.
- */
- public void setNickname(final String nickname) {
- if (getSocketState() == SocketState.OPEN) {
- if (!myself.isFake() && myself.getRealNickname().equals(nickname)) {
- return;
- }
- sendString("NICK " + nickname);
- } else {
- me.setNickname(nickname);
- }
-
- thinkNickname = nickname;
- }
-
- @Override
- public int getMaxLength(final String type, final String target) {
- // If my host is "nick!user@host" and we are sending "#Channel"
- // a "PRIVMSG" this will find the length of ":nick!user@host PRIVMSG #channel :"
- // and subtract it from the MAX_LINELENGTH. This should be sufficient in most cases.
- // Lint = the 2 ":" at the start and end and the 3 separating " "s
- int length = 0;
- if (type != null) {
- length += type.length();
- }
- if (target != null) {
- length += target.length();
- }
- return getMaxLength(length);
- }
-
- /**
- * Get the max length a message can be.
- *
- * @param length Length of stuff. (Ie "PRIVMSG"+"#Channel")
- * @return Max Length message should be.
- */
- public int getMaxLength(final int length) {
- final int lineLint = 5;
- if (myself.isFake()) {
- callErrorInfo(new ParserError(ParserError.ERROR_ERROR + ParserError.ERROR_USER, "getMaxLength() called, but I don't know who I am?", getLastLine()));
- return MAX_LINELENGTH - length - lineLint;
- } else {
- return MAX_LINELENGTH - myself.toString().length() - length - lineLint;
- }
- }
-
- @Override
- public int getMaxListModes(final char mode) {
- // MAXLIST=bdeI:50
- // MAXLIST=b:60,e:60,I:60
- // MAXBANS=30
- callDebugInfo(DEBUG_INFO, "Looking for maxlistmodes for: " + mode);
- // Try in MAXLIST
- int result = -2;
- if (h005Info.get(IrcConstants.ISUPPORT_MAXIMUM_LIST_MODES) != null) {
- if (h005Info.get(IrcConstants.ISUPPORT_MAXIMUM_BANS) == null) {
- result = 0;
- }
- final String maxlist = h005Info.get(IrcConstants.ISUPPORT_MAXIMUM_LIST_MODES);
- callDebugInfo(DEBUG_INFO, "Found maxlist (" + maxlist + ')');
- final String[] bits = maxlist.split(",");
- for (String bit : bits) {
- final String[] parts = bit.split(":", 2);
- callDebugInfo(DEBUG_INFO, "Bit: " + bit + " | parts.length = " + parts.length + " ("
- + parts[0] + " -> " + parts[0].indexOf(mode) + ')');
- if (parts.length == 2 && parts[0].indexOf(mode) > -1) {
- callDebugInfo(DEBUG_INFO, "parts[0] = '" + parts[0] + "' | parts[1] = '"
- + parts[1] + '\'');
- try {
- result = Integer.parseInt(parts[1]);
- break;
- } catch (NumberFormatException nfe) {
- result = -1;
- }
- }
- }
- }
-
- // If not in max list, try MAXBANS
- if (result == -2 && h005Info.get(IrcConstants.ISUPPORT_MAXIMUM_BANS) != null) {
- callDebugInfo(DEBUG_INFO, "Trying max bans");
- try {
- result = Integer.parseInt(h005Info.get(IrcConstants.ISUPPORT_MAXIMUM_BANS));
- } catch (NumberFormatException nfe) {
- result = -1;
- }
- } else if (result == -2 && getServerType() == ServerType.WEIRCD) {
- result = 50;
- } else if (result == -2 && getServerType() == ServerType.OTHERNET) {
- result = 30;
- } else if (result == -2) {
- result = -1;
- callDebugInfo(DEBUG_INFO, "Failed");
- callErrorInfo(new ParserError(ParserError.ERROR_ERROR + ParserError.ERROR_USER, "Unable to discover max list modes.", getLastLine()));
- }
- callDebugInfo(DEBUG_INFO, "Result: " + result);
- return result;
- }
-
- @Override
- public void sendMessage(final String target, final String message) {
- if (target == null || message == null) {
- return;
- }
- if (target.isEmpty()) {
- return;
- }
-
- sendString("PRIVMSG " + target, message);
- }
-
- @Override
- public void sendNotice(final String target, final String message) {
- if (target == null || message == null) {
- return;
- }
- if (target.isEmpty()) {
- return;
- }
-
- sendString("NOTICE " + target, message);
- }
-
- @Override
- public void sendAction(final String target, final String message) {
- sendCTCP(target, "ACTION", message);
- }
-
- @Override
- public void sendCTCP(final String target, final String type, final String message) {
- if (target == null || message == null) {
- return;
- }
- if (target.isEmpty() || type.isEmpty()) {
- return;
- }
- final char char1 = (char) 1;
- sendString("PRIVMSG " + target, char1 + type.toUpperCase() + ' ' + message + char1);
- }
-
- @Override
- public void sendCTCPReply(final String target, final String type, final String message) {
- if (target == null || message == null) {
- return;
- }
- if (target.isEmpty() || type.isEmpty()) {
- return;
- }
- final char char1 = (char) 1;
- sendString("NOTICE " + target, char1 + type.toUpperCase() + ' ' + message + char1);
- }
-
- @Override
- public void requestGroupList(final String searchTerms) {
- sendString("LIST", searchTerms);
- }
-
- @Override
- public void quit(final String reason) {
- // Don't attempt to send anything further.
- getOutputQueue().clearQueue();
- final String output = (reason == null || reason.isEmpty()) ? "QUIT" : "QUIT :" + reason;
- sendString(output, QueuePriority.IMMEDIATE, true);
- // Don't bother queueing anything else.
- getOutputQueue().setDiscarding(true);
- }
-
- @Override
- public void disconnect(final String message) {
- super.disconnect(message);
- if (currentSocketState == SocketState.OPENING || currentSocketState == SocketState.OPEN) {
- if (got001) {
- quit(message);
- }
- currentSocketState = SocketState.CLOSING;
- }
-
- try {
- // SSLSockets try to close nicely and read data from the socket,
- // which seems to hang indefinitely in some circumstances. We don't
- // like indefinite hangs, so just close the underlying socket
- // direct.
- if (rawSocket != null) {
- rawSocket.close();
- }
- } catch (IOException e) {
- /* Do Nothing */
- } finally {
- if (currentSocketState != SocketState.CLOSED) {
- currentSocketState = SocketState.CLOSED;
- callSocketClosed();
- }
- resetState();
- }
- }
-
- /** {@inheritDoc}
- *
- * - Before channel prefixes are known (005/noMOTD/MOTDEnd), this checks
- * that the first character is either #, &, ! or +
- * - Assumes that any channel that is already known is valid, even if
- * 005 disagrees.
- */
- @Override
- public boolean isValidChannelName(final String name) {
- // Check sChannelName is not empty or null
- if (name == null || name.isEmpty()) {
- return false;
- }
- // Check its not ourself (PM recieved before 005)
- if (getStringConverter().equalsIgnoreCase(getMyNickname(), name)) {
- return false;
- }
- // Check if we are already on this channel
- if (getChannel(name) != null) {
- return true;
- }
- // Otherwise return true if:
- // Channel equals "0"
- // first character of the channel name is a valid channel prefix.
- return chanPrefix.indexOf(name.charAt(0)) >= 0 || "0".equals(name);
- }
-
- @Override
- public boolean isUserSettable(final char mode) {
- final String validmodes =
- h005Info.containsKey(IrcConstants.ISUPPORT_USER_CHANNEL_MODES)
- ? h005Info.get(IrcConstants.ISUPPORT_USER_CHANNEL_MODES)
- : "bklimnpstrc";
- return validmodes.indexOf(mode) > -1;
- }
-
- /**
- * Get the 005 info.
- *
- * @return 005Info hashtable.
- */
- public Map<String, String> get005() {
- return Collections.unmodifiableMap(h005Info);
- }
-
- /**
- * Get the ServerType for this IRCD.
- *
- * @return The ServerType for this IRCD.
- */
- public ServerType getServerType() {
- return ServerType.findServerType(h005Info.get("004IRCD"), networkName, h005Info.get("003IRCD"), h005Info.get("002IRCD"));
- }
-
- @Override
- public String getServerSoftware() {
- final String version = h005Info.get("004IRCD");
- return version == null ? "" : version;
- }
-
- @Override
- public String getServerSoftwareType() {
- return getServerType().getType();
- }
-
- /**
- * Get the value of checkServerPing.
- *
- * @return value of checkServerPing.
- * @see #setCheckServerPing
- */
- public boolean getCheckServerPing() {
- return checkServerPing;
- }
-
- /**
- * Set the value of checkServerPing.
- *
- * @param newValue New value to use.
- */
- public void setCheckServerPing(final boolean newValue) {
- checkServerPing = newValue;
- if (checkServerPing) {
- startPingTimer();
- } else {
- stopPingTimer();
- }
- }
-
- @Override
- public void setEncoder(final Encoder encoder) {
- this.encoder = encoder;
- }
-
- @Override
- public void setPingTimerInterval(final long newValue) {
- super.setPingTimerInterval(newValue);
-
- startPingTimer();
- }
-
- /**
- * Start the pingTimer.
- */
- public void startPingTimer() {
- pingTimerSem.acquireUninterruptibly();
-
- try {
- setPingNeeded(false);
-
- if (pingTimer != null) {
- pingTimer.cancel();
- }
-
- pingTimer = new Timer("IRCParser pingTimer");
- pingTimer.schedule(new PingTimer(this, pingTimer), 0, getPingTimerInterval());
- pingCountDown = 1;
- } finally {
- pingTimerSem.release();
- }
- }
-
- /**
- * Stop the pingTimer.
- */
- protected void stopPingTimer() {
- pingTimerSem.acquireUninterruptibly();
- if (pingTimer != null) {
- pingTimer.cancel();
- pingTimer = null;
- }
- pingTimerSem.release();
- }
-
- /**
- * This is called when the ping Timer has been executed.
- * As the timer is restarted on every incomming message, this will only be
- * called when there has been no incomming line for 10 seconds.
- *
- * @param timer The timer that called this.
- */
- protected void pingTimerTask(final Timer timer) {
- // If user no longer wants server ping to be checked, or the socket is
- // closed then cancel the time and do nothing else.
- if (!getCheckServerPing() || getSocketState() != SocketState.OPEN) {
- pingTimerSem.acquireUninterruptibly();
- if (pingTimer != null && pingTimer.equals(timer)) {
- pingTimer.cancel();
- }
- pingTimerSem.release();
-
- return;
- }
-
- if (getPingNeeded()) {
- callPingFailed();
- } else {
- --pingCountDown;
- if (pingCountDown < 1) {
- pingTime = System.currentTimeMillis();
- setPingNeeded(true);
- pingCountDown = getPingTimerFraction();
- lastPingValue = String.valueOf(System.currentTimeMillis());
- if (sendString("PING " + lastPingValue, QueuePriority.HIGH)) {
- callPingSent();
- }
- }
- }
- }
-
- @Override
- public long getServerLatency() {
- return serverLag;
- }
-
- /**
- * Updates the name of the server that this parser is connected to.
- *
- * @param serverName The discovered server name
- */
- public void updateServerName(final String serverName) {
- setServerName(serverName);
- }
-
- /**
- * Get the current server lag.
- *
- * @param actualTime if True the value returned will be the actual time the ping was sent
- * else it will be the amount of time sinse the last ping was sent.
- * @return Time last ping was sent
- */
- public long getPingTime(final boolean actualTime) {
- if (actualTime) {
- return pingTime;
- } else {
- return System.currentTimeMillis() - pingTime;
- }
- }
-
- @Override
- public long getPingTime() {
- return getPingTime(false);
- }
-
- /**
- * Set if a ping is needed or not.
- *
- * @param newStatus new value to set pingNeeded to.
- */
- private void setPingNeeded(final boolean newStatus) {
- pingNeeded.set(newStatus);
- }
-
- /**
- * Get if a ping is needed or not.
- *
- * @return value of pingNeeded.
- */
- boolean getPingNeeded() {
- return pingNeeded.get();
- }
-
- @Override
- public IRCClientInfo getLocalClient() {
- return myself;
- }
-
- /**
- * Get the current nickname.
- * After 001 this returns the exact same as getLocalClient().getRealNickname();
- * Before 001 it returns the nickname that the parser Thinks it has.
- *
- * @return Current nickname.
- */
- public String getMyNickname() {
- if (myself.isFake()) {
- return thinkNickname;
- } else {
- return myself.getRealNickname();
- }
- }
-
- /**
- * Retrieves the local user information that this parser was configured
- * with.
- *
- * @return This parser's local user configuration
- */
- public MyInfo getMyInfo() {
- return me;
- }
-
- /**
- * Get the current username (Specified in MyInfo on construction).
- * Get the username given in MyInfo
- *
- * @return My username.
- */
- public String getMyUsername() {
- return me.getUsername();
- }
-
- /**
- * Add a client to the ClientList.
- *
- * @param client Client to add
- */
- public void addClient(final IRCClientInfo client) {
- clientList.put(getStringConverter().toLowerCase(client.getRealNickname()), client);
- }
-
- /**
- * Remove a client from the ClientList.
- * This WILL NOT allow cMyself to be removed from the list.
- *
- * @param client Client to remove
- */
- public void removeClient(final IRCClientInfo client) {
- if (client != myself) {
- forceRemoveClient(client);
- }
- }
-
- /**
- * Remove a client from the ClientList.
- * This WILL allow cMyself to be removed from the list
- *
- * @param client Client to remove
- */
- public void forceRemoveClient(final IRCClientInfo client) {
- clientList.remove(getStringConverter().toLowerCase(client.getRealNickname()));
- }
-
- /**
- * Get the number of known clients.
- *
- * @return Count of known clients
- */
- public int knownClients() {
- return clientList.size();
- }
-
- /**
- * Get the known clients as a collection.
- *
- * @return Known clients as a collection
- */
- public Collection<IRCClientInfo> getClients() {
- return clientList.values();
- }
-
- /**
- * Clear the client list.
- */
- public void clearClients() {
- clientList.clear();
- addClient(getLocalClient());
- }
-
- /**
- * Add a channel to the ChannelList.
- *
- * @param channel Channel to add
- */
- public void addChannel(final IRCChannelInfo channel) {
- synchronized (channelList) {
- channelList.put(getStringConverter().toLowerCase(channel.getName()), channel);
- }
- }
-
- /**
- * Remove a channel from the ChannelList.
- *
- * @param channel Channel to remove
- */
- public void removeChannel(final ChannelInfo channel) {
- synchronized (channelList) {
- channelList.remove(getStringConverter().toLowerCase(channel.getName()));
- }
- }
-
- /**
- * Get the number of known channel.
- *
- * @return Count of known channel
- */
- public int knownChannels() {
- synchronized (channelList) {
- return channelList.size();
- }
- }
-
- @Override
- public Collection<IRCChannelInfo> getChannels() {
- synchronized (channelList) {
- return channelList.values();
- }
- }
-
- /**
- * Clear the channel list.
- */
- public void clearChannels() {
- synchronized (channelList) {
- channelList.clear();
- }
- }
-
- @Override
- public String[] parseHostmask(final String hostmask) {
- return IRCClientInfo.parseHostFull(hostmask);
- }
-
- @Override
- public int getMaxTopicLength() {
- if (h005Info.containsKey(IrcConstants.ISUPPORT_TOPIC_LENGTH)) {
- try {
- return Integer.parseInt(h005Info.get(IrcConstants.ISUPPORT_TOPIC_LENGTH));
- } catch (NumberFormatException ex) {
- // Do nothing
- }
- }
-
- return 0;
- }
-
- @Override
- public int getMaxLength() {
- return MAX_LINELENGTH;
- }
-
- @Override
- public void setCompositionState(final String host, final CompositionState state) {
- // Do nothing
- }
-
- @Override
- protected void handleSocketDebug(final String message) {
- super.handleSocketDebug(message);
- callDebugInfo(DEBUG_SOCKET, message);
- }
- }
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