2 * XdccDownloader - Core.java - Copyright © 2013 David Roden
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 package net.pterodactylus.xdcc.core;
20 import static java.lang.String.format;
21 import static java.util.stream.Collectors.toSet;
22 import static net.pterodactylus.irc.event.ChannelNotJoined.Reason.banned;
23 import static net.pterodactylus.irc.event.ChannelNotJoined.Reason.inviteOnly;
24 import static net.pterodactylus.irc.event.ChannelNotJoined.Reason.registeredNicknamesOnly;
25 import static net.pterodactylus.irc.util.MessageCleaner.getDefaultInstance;
26 import static net.pterodactylus.xdcc.data.Download.FILTER_RUNNING;
29 import java.io.FileNotFoundException;
30 import java.io.FileOutputStream;
31 import java.io.IOException;
32 import java.io.OutputStream;
33 import java.time.Duration;
34 import java.time.Instant;
35 import java.util.Collection;
36 import java.util.Collections;
37 import java.util.HashSet;
38 import java.util.Iterator;
39 import java.util.List;
41 import java.util.Map.Entry;
42 import java.util.Objects;
44 import java.util.TreeMap;
45 import java.util.concurrent.TimeUnit;
46 import java.util.function.Function;
47 import java.util.stream.Collectors;
49 import net.pterodactylus.irc.Connection;
50 import net.pterodactylus.irc.ConnectionFactory;
51 import net.pterodactylus.irc.DccReceiver;
52 import net.pterodactylus.irc.DefaultConnection;
53 import net.pterodactylus.irc.event.ChannelJoined;
54 import net.pterodactylus.irc.event.ChannelLeft;
55 import net.pterodactylus.irc.event.ChannelMessageReceived;
56 import net.pterodactylus.irc.event.ChannelNotJoined;
57 import net.pterodactylus.irc.event.ClientQuit;
58 import net.pterodactylus.irc.event.ConnectionClosed;
59 import net.pterodactylus.irc.event.ConnectionEstablished;
60 import net.pterodactylus.irc.event.ConnectionFailed;
61 import net.pterodactylus.irc.event.DccAcceptReceived;
62 import net.pterodactylus.irc.event.DccDownloadFailed;
63 import net.pterodactylus.irc.event.DccDownloadFinished;
64 import net.pterodactylus.irc.event.DccSendReceived;
65 import net.pterodactylus.irc.event.KickedFromChannel;
66 import net.pterodactylus.irc.event.NicknameChanged;
67 import net.pterodactylus.irc.event.PrivateMessageReceived;
68 import net.pterodactylus.irc.event.PrivateNoticeReceived;
69 import net.pterodactylus.irc.event.ReplyReceived;
70 import net.pterodactylus.irc.util.RandomNickname;
71 import net.pterodactylus.xdcc.core.event.BotAdded;
72 import net.pterodactylus.xdcc.core.event.CoreStarted;
73 import net.pterodactylus.xdcc.core.event.DownloadFailed;
74 import net.pterodactylus.xdcc.core.event.DownloadFinished;
75 import net.pterodactylus.xdcc.core.event.DownloadStarted;
76 import net.pterodactylus.xdcc.core.event.GenericError;
77 import net.pterodactylus.xdcc.core.event.GenericMessage;
78 import net.pterodactylus.xdcc.core.event.MessageReceived;
79 import net.pterodactylus.xdcc.data.Bot;
80 import net.pterodactylus.xdcc.data.Channel;
81 import net.pterodactylus.xdcc.data.ConnectedNetwork;
82 import net.pterodactylus.xdcc.data.Download;
83 import net.pterodactylus.xdcc.data.Network;
84 import net.pterodactylus.xdcc.data.Pack;
85 import net.pterodactylus.xdcc.data.Server;
87 import com.google.common.base.Optional;
88 import com.google.common.base.Predicate;
89 import com.google.common.collect.FluentIterable;
90 import com.google.common.collect.HashBasedTable;
91 import com.google.common.collect.HashMultimap;
92 import com.google.common.collect.ImmutableList;
93 import com.google.common.collect.ImmutableSet;
94 import com.google.common.collect.Lists;
95 import com.google.common.collect.Maps;
96 import com.google.common.collect.Multimap;
97 import com.google.common.collect.Sets;
98 import com.google.common.collect.Table;
99 import com.google.common.eventbus.EventBus;
100 import com.google.common.eventbus.Subscribe;
101 import com.google.common.io.Closeables;
102 import com.google.common.util.concurrent.AbstractExecutionThreadService;
103 import com.google.inject.Inject;
104 import org.apache.log4j.Logger;
107 * The core of XDCC Downloader.
109 * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
111 public class Core extends AbstractExecutionThreadService {
114 private static final Logger logger = Logger.getLogger(Core.class.getName());
116 private final Instant startup = Instant.now();
117 private final Object syncObject = new Object();
118 /** The event bus. */
119 private final EventBus eventBus;
120 private final ConnectionFactory connectionFactory;
121 private final ChannelBanManager channelBanManager =
122 new ChannelBanManager();
123 private final ConnectionBackoff connectionBackoff = new ConnectionBackoff();
125 /** The temporary directory to download files to. */
126 private final String temporaryDirectory;
128 /** The directory to move finished downloads to. */
129 private final String finalDirectory;
131 /** The channels that should be monitored. */
132 private final Collection<Channel> channels = Sets.newHashSet();
134 /** The channels that are currentlymonitored. */
135 private final Collection<Channel> joinedChannels = Sets.newHashSet();
136 private final Set<Channel> channelsBeingJoined = new HashSet<>();
138 /** The channels that are joined but not configured. */
139 private final Collection<Channel> extraChannels = Sets.newHashSet();
141 /** The current network connections. */
142 private final Map<Network, Connection> networkConnections = Collections.synchronizedMap(Maps.<Network, Connection>newHashMap());
144 /** The currently known bots. */
145 private final Table<Network, String, Bot> networkBots = HashBasedTable.create();
147 /** The current downloads. */
148 private final Multimap<String, Download> downloads = HashMultimap.create();
150 /** The current DCC receivers. */
151 private final Collection<DccReceiver> dccReceivers = Lists.newArrayList();
154 * Creates a new core.
158 * @param temporaryDirectory
159 * The directory to download files to
160 * @param finalDirectory
161 * The directory to move finished files to
164 public Core(EventBus eventBus, ConnectionFactory connectionFactory, String temporaryDirectory, String finalDirectory) {
165 this.eventBus = eventBus;
166 this.connectionFactory = connectionFactory;
167 this.temporaryDirectory = temporaryDirectory;
168 this.finalDirectory = finalDirectory;
176 * Returns all currently known connections.
178 * @return All currently known connections
180 public Collection<Connection> connections() {
181 return networkConnections.values();
185 * Returns all defined networks.
187 * @return All defined networks
189 public Collection<Network> networks() {
190 return FluentIterable.from(channels).transform(Channel::network).toSet();
194 * Returns all connected networks.
196 * @return All connected networks
198 public Collection<ConnectedNetwork> connectedNetworks() {
199 return networkConnections.entrySet().stream().map((entry) -> {
200 Network network = entry.getKey();
201 Collection<Bot> bots = networkBots.row(network).values();
202 int packCount = bots.stream().mapToInt((bot) -> bot.packs().size()).reduce((a, b) -> a + b).orElse(0);
203 Connection connection = entry.getValue();
204 return new ConnectedNetwork(network, connection.hostname(),
206 connection.getUptime().orElse(Duration.ofSeconds(0)),
207 connection.nickname(),
209 .filter((channel) -> channel.network()
212 .collect(Collectors.<String>toList()),
213 extraChannels.stream()
214 .filter((channel) -> channel.network()
217 .collect(Collectors.<String>toList()),
218 bots.size(), packCount);
219 }).collect(Collectors.<ConnectedNetwork>toList());
223 * Returns all configured channels. Due to various circumstances, configured
224 * channels might not actually be joined.
226 * @return All configured channels
228 public Collection<Channel> channels() {
229 return ImmutableSet.copyOf(channels);
233 * Returns all currently joined channels.
235 * @return All currently joined channels
237 public Collection<Channel> joinedChannels() {
238 return ImmutableSet.copyOf(joinedChannels);
242 * Returns all currently joined channels that are not configured.
244 * @return All currently joined but not configured channels
246 public Collection<Channel> extraChannels() {
247 return ImmutableSet.copyOf(extraChannels);
251 * Returns all currently known bots.
253 * @return All currently known bots
255 public Collection<Bot> bots() {
256 return networkBots.values();
260 * Returns all currently running downloads.
262 * @return All currently running downloads
264 public Collection<Download> downloads() {
265 return downloads.values();
268 public Duration getUptime() {
269 return Duration.between(startup, Instant.now());
277 * Adds a channel to monitor.
280 * The channel to monitor
282 public void addChannel(Channel channel) {
283 channels.add(channel);
287 * Fetches the given pack from the given bot.
290 * The bot to fetch the pack from
294 public void fetch(Bot bot, Pack pack) {
295 Connection connection = networkConnections.get(bot.network());
296 if (connection == null) {
300 /* check if we are already downloading the file? */
301 if (downloads.containsKey(pack.name())) {
302 Collection<Download> packDownloads = downloads.get(pack.name());
303 Collection<Download> runningDownloads = FluentIterable.from(packDownloads).filter(FILTER_RUNNING).toSet();
304 if (!runningDownloads.isEmpty()) {
305 Download download = runningDownloads.iterator().next();
306 eventBus.post(new GenericMessage(String.format("File %s is already downloading from %s (%s).", pack.name(), download.bot().name(), download.bot().network().name())));
309 StringBuilder bots = new StringBuilder();
310 for (Download download : packDownloads) {
311 if (bots.length() > 0) {
314 bots.append(download.bot().name()).append(" (").append(download.bot().network().name()).append(')');
316 eventBus.post(new GenericMessage(String.format("File %s is already requested from %d bots (%s).", pack.name(), packDownloads.size(), bots.toString())));
319 Download download = new Download(bot, pack);
320 downloads.put(pack.name(), download);
323 connection.sendMessage(bot.name(), "XDCC SEND " + pack.id());
324 } catch (IOException ioe1) {
325 logger.warn("Could not send message to bot!", ioe1);
330 * Cancels the download of the given pack from the given bot.
333 * The bot the pack is being downloaded from
335 * The pack being downloaded
337 public void cancelDownload(Bot bot, Pack pack) {
338 Optional<Download> download = getDownload(pack, bot);
339 if (!download.isPresent()) {
343 /* stop the DCC receiver. */
344 if (download.get().dccReceiver() != null) {
345 download.get().dccReceiver().stop();
347 /* remove download if it hasn’t started yet. */
348 downloads.remove(pack.name(), download.get());
351 /* get connection. */
352 Connection connection = networkConnections.get(bot.network());
353 if (connection == null) {
354 /* request for unknown network? */
358 /* remove the request from the bot, too. */
360 connection.sendMessage(bot.name(), String.format("XDCC %s", (download.get().dccReceiver() != null) ? "CANCEL" : "REMOVE"));
361 } catch (IOException ioe1) {
362 logger.warn(String.format("Could not cancel DCC from %s (%s)!", bot.name(), bot.network().name()), ioe1);
367 * Closes the given connection.
370 * The connection to close
372 public void closeConnection(Connection connection) {
375 } catch (IOException ioe1) {
381 // ABSTRACTIDLESERVICE METHODS
385 protected void startUp() {
386 for (Channel channel : channels) {
387 logger.info(String.format("Connecting to Channel %s on Network %s…", channel.name(), channel.network().name()));
388 connectNetwork(channel.network());
391 /* notify listeners. */
392 eventBus.post(new CoreStarted(this));
396 protected void run() throws Exception {
397 while (isRunning()) {
399 Set<Channel> missingChannels = new HashSet<>();
400 for (Channel channel : channels) {
401 if (joinedChannels.contains(channel) || channelsBeingJoined.contains(channel)) {
404 if (channelBanManager.isBanned(channel)) {
407 if (!networkConnections.containsKey(channel.network()) || networkConnections.get(channel.network()).established()) {
408 missingChannels.add(channel);
411 Set<Network> missingNetworks = missingChannels.stream()
412 .map(Channel::network)
414 .filter((network) -> !networkConnections.containsKey(network))
417 if (missingNetworks.isEmpty()) {
418 if (!missingChannels.isEmpty()) {
419 for (Channel missingChannel : missingChannels) {
420 Network network = missingChannel.network();
421 eventBus.post(new GenericMessage(String.format("Trying to join %s on %s...", missingChannel.name(), network)));
423 channelsBeingJoined.add(missingChannel);
424 networkConnections.get(network).joinChannel(missingChannel.name());
425 } catch (IOException ioe1) {
426 logger.warn(String.format("Could not join %s on %s!", missingChannel.name(), network.name()), ioe1);
430 synchronized (syncObject) {
432 syncObject.wait(TimeUnit.MINUTES.toMillis(1));
433 } catch (InterruptedException ie1) {
441 Map<Long, Network> timesForNextConnects = new TreeMap<>(missingNetworks.stream()
442 .collect(Collectors.toMap(connectionBackoff::getConnectionTime, Function.identity(), (network, ignore) -> network)));
444 Optional<Entry<Long, Network>> firstNetwork = Optional.fromNullable(timesForNextConnects.entrySet().stream().findFirst().orElse(null));
445 if (!firstNetwork.isPresent()) {
448 if (firstNetwork.get().getKey() > System.currentTimeMillis()) {
449 eventBus.post(new GenericMessage(String.format("Will connect to %2$s at %1$tH:%1$tM...", firstNetwork.get().getKey(), firstNetwork.get().getValue().name())));
450 synchronized (syncObject) {
452 syncObject.wait(firstNetwork.get().getKey() - System.currentTimeMillis());
453 } catch (InterruptedException ie1) {
460 if (firstNetwork.get().getKey() > System.currentTimeMillis()) {
465 connectNetwork(firstNetwork.get().getValue());
470 protected void triggerShutdown() {
471 synchronized (syncObject) {
472 syncObject.notifyAll();
481 * Starts a new connection for the given network if no such connection exists
485 * The network to connect to
487 private void connectNetwork(Network network) {
488 if (!networkConnections.containsKey(network)) {
489 /* select a random server. */
490 List<Server> servers = Lists.newArrayList(network.servers());
491 if (servers.isEmpty()) {
492 eventBus.post(new GenericError(String.format("Network %s does not have any servers.", network.name())));
495 Server server = servers.get((int) (Math.random() * servers.size()));
496 eventBus.post(new GenericMessage(String.format("Connecting to %s on %s...", network.name(), server.hostname())));
497 Connection connection = connectionFactory.createConnection(server.hostname(),
498 server.unencryptedPorts().iterator().next());
499 connection.username(RandomNickname.get()).realName(RandomNickname.get());
500 networkConnections.put(network, connection);
506 * Removes the given connection and all its channels and bots.
509 * The connection to remove
511 private void removeConnection(Connection connection) {
512 logger.debug(String.format("Removing Connection %s...", connection));
513 Optional<Network> network = getNetwork(connection);
514 if (!network.isPresent()) {
515 logger.debug(String.format("Connection %s did not belong to any network.", connection));
518 logger.debug(String.format("Connection %s belongs to network %s.", connection, network.get()));
519 networkConnections.remove(network.get());
521 /* find all channels that need to be removed. */
522 for (Collection<Channel> channels : ImmutableList.of(joinedChannels, extraChannels)) {
523 for (Iterator<Channel> channelIterator = channels.iterator(); channelIterator.hasNext(); ) {
524 Channel joinedChannel = channelIterator.next();
525 if (!joinedChannel.network().equals(network.get())) {
528 logger.debug(String.format("Channel %s will be removed.", joinedChannel));
529 channelIterator.remove();
533 /* now remove all bots for that network. */
534 Map<String, Bot> bots = networkBots.row(network.get());
535 int botCount = bots.size();
537 for (Bot bot : bots.values()) {
538 packCount += bot.packs().size();
541 eventBus.post(new GenericMessage(String.format("Network %s disconnected, %d bots removed, %d packs removed.", network.get().name(), botCount, packCount)));
549 * If a connection to a network has been established, the channels associated
550 * with this network are joined.
552 * @param connectionEstablished
553 * The connection established event
556 public void connectionEstablished(ConnectionEstablished connectionEstablished) {
558 /* get network for connection. */
559 Optional<Network> network = getNetwork(connectionEstablished.connection());
562 if (!network.isPresent()) {
563 eventBus.post(new GenericMessage(String.format("Connected to unknown network: %s", connectionEstablished.connection().hostname())));
567 connectionBackoff.connectionSuccessful(network.get());
568 eventBus.post(new GenericMessage(String.format("Connected to network %s.", network.get().name())));
570 /* join all channels on this network. */
571 for (Channel channel : channels) {
572 if (channel.network().equals(network.get())) {
574 eventBus.post(new GenericMessage(String.format("Trying to join %s on %s...", channel.name(), network.get().name())));
575 connectionEstablished.connection().joinChannel(channel.name());
576 } catch (IOException ioe1) {
577 logger.warn(String.format("Could not join %s on %s!", channel.name(), network.get().name()), ioe1);
584 * Remove all data stored for a network if the connection is closed.
586 * @param connectionClosed
587 * The connection closed event
590 public void connectionClosed(ConnectionClosed connectionClosed) {
591 connectionBackoff.connectionFailed(getNetwork(connectionClosed.connection()).get());
592 removeConnection(connectionClosed.connection());
593 synchronized (syncObject) {
594 syncObject.notifyAll();
596 eventBus.post(new GenericMessage(String.format("Connection closed by %s.", connectionClosed.connection().hostname())));
600 * Remove all data stored for a network if the connection fails.
602 * @param connectionFailed
603 * The connection failed event
606 public void connectionFailed(ConnectionFailed connectionFailed) {
607 connectionBackoff.connectionFailed(getNetwork(connectionFailed.connection()).get());
608 removeConnection(connectionFailed.connection());
609 synchronized (syncObject) {
610 syncObject.notifyAll();
612 eventBus.post(new GenericMessage(String.format("Could not connect to %s: %s.", connectionFailed.connection().hostname(), connectionFailed.cause())));
616 * Shows a message when a channel was joined by us.
618 * @param channelJoined
619 * The channel joined event
622 public void channelJoined(ChannelJoined channelJoined) {
623 if (channelJoined.connection().isSource(channelJoined.client())) {
624 Optional<Network> network = getNetwork(channelJoined.connection());
625 if (!network.isPresent()) {
629 Optional<Channel> channel = getChannel(network.get(), channelJoined.channel());
630 if (!channel.isPresent()) {
631 /* it’s an extra channel. */
632 extraChannels.add(new Channel(network.get(), channelJoined.channel()));
633 logger.info(String.format("Joined extra Channel %s on %s.", channelJoined.channel(), network.get().name()));
637 channelBanManager.unban(channel.get());
638 joinedChannels.add(channel.get());
639 channelsBeingJoined.remove(channel.get());
640 logger.info(String.format("Joined Channel %s on %s.", channelJoined.channel(), network.get().name()));
645 public void channelNotJoined(ChannelNotJoined channelNotJoined) {
646 Optional<Network> network = getNetwork(channelNotJoined.connection());
647 if (!network.isPresent()) {
651 Optional<Channel> channel = getChannel(network.get(), channelNotJoined.channel());
652 synchronized (syncObject) {
653 syncObject.notifyAll();
655 if (!channel.isPresent()) {
656 eventBus.post(new GenericMessage(format("Could not join %s but didn’t try to join, either.", channelNotJoined.channel())));
659 channelsBeingJoined.remove(channel.get());
662 /* remove all bots for this channel, we might have been kicked. */
663 Collection<Bot> botsToRemove = networkBots.row(network.get())
665 .filter(bot -> bot.channel()
666 .equalsIgnoreCase(channel.get().name()))
668 botsToRemove.stream()
669 .forEach(bot -> networkBots.row(network.get())
670 .remove(bot.name()));
672 channelBanManager.ban(channel.get());
673 if (channelNotJoined.reason() == registeredNicknamesOnly) {
674 eventBus.post(new GenericMessage(
675 format("%s requires nickname registration, suspending join for a day.",
677 } else if (channelNotJoined.reason() == inviteOnly) {
678 eventBus.post(new GenericMessage(
679 format("%s is invite-only, suspending join for a day.",
681 } else if (channelNotJoined.reason() == banned) {
682 eventBus.post(new GenericMessage(
683 format("Banned from %s, suspending join for a day.",
686 eventBus.post(new GenericMessage(
687 format("Could not join %s: %s", channelNotJoined.channel(),
688 channelNotJoined.reason())));
693 * Removes bots that leave a channel, or channels when it’s us that’s leaving.
696 * The channel left event
699 public void channelLeft(ChannelLeft channelLeft) {
700 Optional<Network> network = getNetwork(channelLeft.connection());
701 if (!network.isPresent()) {
705 Bot bot = networkBots.get(network.get(), channelLeft.client().nick().get());
707 /* maybe it was us? */
708 if (channelLeft.connection().isSource(channelLeft.client())) {
709 Optional<Channel> channel = getChannel(network.get(), channelLeft.channel());
710 if (!channel.isPresent()) {
711 /* maybe it was an extra channel? */
712 channel = getExtraChannel(network.get(), channelLeft.channel());
713 if (!channel.isPresent()) {
714 /* okay, whatever. */
718 extraChannels.remove(channel);
720 channels.remove(channel.get());
722 synchronized (syncObject) {
723 syncObject.notifyAll();
726 eventBus.post(new GenericMessage(String.format("Left Channel %s on %s.", channel.get().name(), channel.get().network().name())));
732 networkBots.remove(network.get(), channelLeft.client().nick().get());
736 public void kickedFromChannel(KickedFromChannel kickedFromChannel) {
737 Optional<Network> network = getNetwork(kickedFromChannel.connection());
738 if (!network.isPresent()) {
742 /* have we been kicked? */
743 if (nicknameMatchesConnection(kickedFromChannel.connection(), kickedFromChannel.kickee())) {
744 Optional<Channel> channel = getChannel(network.get(), kickedFromChannel.channel());
745 if (!channel.isPresent()) {
746 /* maybe it was an extra channel? */
747 channel = getExtraChannel(network.get(), kickedFromChannel.channel());
748 if (!channel.isPresent()) {
749 /* okay, whatever. */
753 extraChannels.remove(channel.get());
755 joinedChannels.remove(channel.get());
757 synchronized (syncObject) {
758 syncObject.notifyAll();
760 eventBus.post(new GenericMessage(format(
761 "Kicked from %s by %s: %s",
762 kickedFromChannel.channel(),
763 kickedFromChannel.kicker(),
764 kickedFromChannel.reason().orElse("<unknown>")
769 private boolean nicknameMatchesConnection(Connection connection, String nickname) {
770 return connection.nickname().equalsIgnoreCase(nickname);
774 * Removes a client (which may be a bot) from the table of known bots.
777 * The client quit event
780 public void clientQuit(ClientQuit clientQuit) {
781 Optional<Network> network = getNetwork(clientQuit.connection());
782 if (!network.isPresent()) {
786 networkBots.remove(network.get(), clientQuit.client().nick().get());
790 * If the nickname of a bit changes, remove it from the old name and store it
791 * under the new name.
793 * @param nicknameChanged
794 * The nickname changed event
797 public void nicknameChanged(NicknameChanged nicknameChanged) {
798 Optional<Network> network = getNetwork(nicknameChanged.connection());
799 if (!network.isPresent()) {
803 Bot bot = networkBots.remove(network.get(), nicknameChanged.client().nick().get());
808 networkBots.put(network.get(), nicknameChanged.newNickname(), bot);
812 * If a message on a channel is received, it is parsed for pack information
813 * with is then added to a bot.
815 * @param channelMessageReceived
816 * The channel message received event
819 public void channelMessageReceived(ChannelMessageReceived channelMessageReceived) {
820 String message = getDefaultInstance().clean(channelMessageReceived.message());
821 if (!message.startsWith("#")) {
822 /* most probably not a pack announcement. */
826 Optional<Network> network = getNetwork(channelMessageReceived.connection());
827 if (!network.isPresent()) {
828 /* message for unknown connection? */
832 /* parse pack information. */
833 Optional<Pack> pack = parsePack(message);
834 if (!pack.isPresent()) {
839 synchronized (networkBots) {
840 if (!networkBots.contains(network.get(), channelMessageReceived.source().nick().get())) {
841 bot = new Bot(network.get(), channelMessageReceived.channel(),
842 channelMessageReceived.source().nick().get());
843 networkBots.put(network.get(), channelMessageReceived.source().nick().get(), bot);
844 eventBus.post(new BotAdded(bot));
846 bot = networkBots.get(network.get(), channelMessageReceived.source().nick().get());
851 bot.addPack(pack.get());
852 logger.debug(String.format("Bot %s now has %d packs.", bot, bot.packs().size()));
856 * Forward all private messages to every console.
858 * @param privateMessageReceived
859 * The private message recevied event
862 public void privateMessageReceived(PrivateMessageReceived privateMessageReceived) {
863 eventBus.post(new MessageReceived(privateMessageReceived.source(), privateMessageReceived.message()));
867 * Sends a message to all console when a notice was received.
869 * @param privateNoticeReceived
870 * The notice received event
873 public void privateNoticeReceived(PrivateNoticeReceived privateNoticeReceived) {
874 Optional<Network> network = getNetwork(privateNoticeReceived.connection());
875 if (!network.isPresent()) {
879 eventBus.post(new GenericMessage(String.format("Notice from %s (%s): %s", privateNoticeReceived.source(), network.get(), privateNoticeReceived.text())));
883 * Starts a DCC download.
885 * @param dccSendReceived
889 public void dccSendReceived(final DccSendReceived dccSendReceived) {
890 final Optional<Network> network = getNetwork(dccSendReceived.connection());
891 eventBus.post(new GenericMessage(format("Got DCC Send from %s for %s.", dccSendReceived.source(), dccSendReceived.filename())));
892 if (!network.isPresent()) {
895 eventBus.post(new GenericMessage("a"));
897 Set<Download> openDownloads = downloads.values().stream()
898 .filter(download -> download.bot().name().equalsIgnoreCase(dccSendReceived.source().nick().orNull()))
899 .filter(download -> download.dccReceiver() == null)
901 eventBus.post(new GenericMessage("b"));
903 if (openDownloads.isEmpty()) {
904 /* I don't think we requested this. */
905 eventBus.post(new GenericMessage(format("Ignoring offer for %s, no open download from %s.", dccSendReceived.filename(), dccSendReceived.source())));
908 eventBus.post(new GenericMessage("c"));
910 /* check if it’s already downloading. */
911 if (downloads.values().stream().anyMatch(download -> Objects.equals(download.filename(), dccSendReceived.filename()) && download.dccReceiver() != null)) {
912 eventBus.post(new GenericMessage(format("Ignoring offer for %s, it’s already being downloaded.", dccSendReceived.filename())));
915 eventBus.post(new GenericMessage("d"));
917 Download download = openDownloads.stream()
918 .filter(it -> Objects.equals(it.filename(), dccSendReceived.filename()))
920 .orElse(openDownloads.iterator().next());
921 eventBus.post(new GenericMessage("e"));
922 eventBus.post(new GenericMessage(format("Downloading %s from %s as %s.", dccSendReceived.filename(), dccSendReceived.source(), download.pack().name())));
924 /* check if the file already exists. */
925 File outputFile = new File(temporaryDirectory, dccSendReceived.filename());
926 if (outputFile.exists()) {
927 long existingFileSize = outputFile.length();
929 /* file already complete? */
930 if ((dccSendReceived.filesize() > -1) && (existingFileSize >= dccSendReceived.filesize())) {
931 /* file is apparently already complete. just move it. */
932 if (outputFile.renameTo(new File(finalDirectory, download.pack().name()))) {
933 eventBus.post(new GenericMessage(String.format("File %s already downloaded.", download.pack().name())));
935 eventBus.post(new GenericMessage(String.format("File %s already downloaded but not moved to %s.", download.pack().name(), finalDirectory)));
938 /* remove download. */
939 downloads.removeAll(download.pack().name());
943 /* file not complete yet, DCC resume it. */
945 download.remoteAddress(dccSendReceived.inetAddress()).filesize(dccSendReceived.filesize());
946 dccSendReceived.connection().sendDccResume(dccSendReceived.source().nick().get(), dccSendReceived.filename(), dccSendReceived.port(), existingFileSize);
947 } catch (IOException ioe1) {
948 eventBus.post(new GenericError(String.format("Could not send DCC RESUME %s to %s (%s).", dccSendReceived.filename(), dccSendReceived.source().nick().get(), ioe1.getMessage())));
954 /* file does not exist, start the download. */
956 OutputStream fileOutputStream = new FileOutputStream(outputFile);
957 DccReceiver dccReceiver = new DccReceiver(eventBus, dccSendReceived.inetAddress(), dccSendReceived.port(), dccSendReceived.filename(), dccSendReceived.filesize(), fileOutputStream);
958 download.filename(outputFile.getPath()).outputStream(fileOutputStream).dccReceiver(dccReceiver);
959 dccReceivers.add(dccReceiver);
961 eventBus.post(new DownloadStarted(download));
962 } catch (FileNotFoundException fnfe1) {
963 eventBus.post(new GenericError(String.format("Could not start download of %s from %s (%s).", dccSendReceived.filename(), dccSendReceived.source().nick().get(), fnfe1.getMessage())));
968 public void dccAcceptReceived(final DccAcceptReceived dccAcceptReceived) {
969 final Optional<Network> network = getNetwork(dccAcceptReceived.connection());
970 if (!network.isPresent()) {
974 Collection<Download> packDownloads = downloads.get(dccAcceptReceived.filename());
975 if (packDownloads.isEmpty()) {
976 /* unknown download, ignore. */
980 /* check if it’s already downloading. */
981 Collection<Download> runningDownloads = FluentIterable.from(packDownloads).filter(FILTER_RUNNING).toSet();
982 if (!runningDownloads.isEmpty()) {
983 eventBus.post(new GenericMessage(String.format("Ignoring offer for %s, it’s already being downloaded.", dccAcceptReceived.filename())));
987 /* locate the correct download. */
988 Collection<Download> requestedDownload = FluentIterable.from(packDownloads).filter(new Predicate<Download>() {
991 public boolean apply(Download download) {
992 return download.bot().network().equals(network.get()) && download.bot().name().equalsIgnoreCase(dccAcceptReceived.source().nick().get());
996 /* we did not request this download. */
997 if (requestedDownload.isEmpty()) {
1001 Download download = requestedDownload.iterator().next();
1004 File outputFile = new File(temporaryDirectory, dccAcceptReceived.filename());
1005 if (outputFile.length() != dccAcceptReceived.position()) {
1006 eventBus.post(new GenericError(String.format("Download %s from %s does not start at the right position!")));
1007 logger.warn(String.format("Download %s from %s: have %d bytes but wants to resume from %d!", dccAcceptReceived.filename(), dccAcceptReceived.source(), outputFile.length(), dccAcceptReceived.position()));
1009 downloads.removeAll(download.pack().name());
1012 OutputStream outputStream = new FileOutputStream(outputFile, true);
1013 DccReceiver dccReceiver = new DccReceiver(eventBus, download.remoteAddress(), dccAcceptReceived.port(), dccAcceptReceived.filename(), dccAcceptReceived.position(), download.filesize(), outputStream);
1014 download.filename(outputFile.getPath()).outputStream(outputStream).dccReceiver(dccReceiver);
1015 dccReceivers.add(dccReceiver);
1016 dccReceiver.start();
1017 eventBus.post(new DownloadStarted(download));
1018 } catch (FileNotFoundException fnfe1) {
1023 * Closes the output stream of the download and moves the file to the final
1026 * @param dccDownloadFinished
1027 * The DCC download finished event
1030 public void dccDownloadFinished(DccDownloadFinished dccDownloadFinished) {
1032 /* locate the correct download. */
1033 Collection<Download> requestedDownload = FluentIterable.from(downloads.get(dccDownloadFinished.dccReceiver().filename())).filter(FILTER_RUNNING).toSet();
1034 if (requestedDownload.isEmpty()) {
1035 /* this seems wrong. */
1036 logger.warn("Download finished but could not be located.");
1039 Download download = requestedDownload.iterator().next();
1042 download.outputStream().close();
1043 File file = new File(download.filename());
1044 file.renameTo(new File(finalDirectory, download.pack().name()));
1045 eventBus.post(new DownloadFinished(download));
1046 dccReceivers.remove(dccDownloadFinished.dccReceiver());
1047 downloads.removeAll(download.pack().name());
1048 } catch (IOException ioe1) {
1049 /* TODO - handle all the errors. */
1050 logger.warn(String.format("Could not move file %s to directory %s.", download.filename(), finalDirectory), ioe1);
1055 * Closes the output stream and notifies all listeners of the failure.
1057 * @param dccDownloadFailed
1058 * The DCC download failed event
1061 public void dccDownloadFailed(DccDownloadFailed dccDownloadFailed) {
1063 /* locate the correct download. */
1064 Collection<Download> requestedDownload = FluentIterable.from(downloads.get(dccDownloadFailed.dccReceiver().filename())).filter(FILTER_RUNNING).toSet();
1065 if (requestedDownload.isEmpty()) {
1066 /* this seems wrong. */
1067 logger.warn("Download finished but could not be located.");
1070 Download download = requestedDownload.iterator().next();
1073 Closeables.close(download.outputStream(), true);
1074 eventBus.post(new DownloadFailed(download));
1075 dccReceivers.remove(dccDownloadFailed.dccReceiver());
1076 downloads.removeAll(download.pack().name());
1077 } catch (IOException ioe1) {
1078 /* swallow silently. */
1083 public void replyReceived(ReplyReceived replyReceived) {
1084 logger.trace(String.format("%s: %s", replyReceived.connection().hostname(), replyReceived.reply()));
1092 * Returns the download of the given pack from the given bot.
1095 * The pack being downloaded
1097 * The bot the pack is being downloaded from
1098 * @return The download, or {@link Optional#absent()} if the download could not
1101 private Optional<Download> getDownload(Pack pack, Bot bot) {
1102 if (!downloads.containsKey(pack.name())) {
1103 return Optional.absent();
1105 for (Download download : Lists.newArrayList(downloads.get(pack.name()))) {
1106 if (download.bot().equals(bot)) {
1107 return Optional.of(download);
1110 return Optional.absent();
1114 * Searches all current connections for the given connection, returning the
1115 * associated network.
1118 * The connection to get the network for
1119 * @return The network belonging to the connection, or {@link
1120 * Optional#absent()}
1122 private Optional<Network> getNetwork(Connection connection) {
1123 for (Entry<Network, Connection> networkConnectionEntry : networkConnections.entrySet()) {
1124 if (networkConnectionEntry.getValue().equals(connection)) {
1125 return Optional.of(networkConnectionEntry.getKey());
1128 return Optional.absent();
1132 * Returns the configured channel for the given network and name.
1135 * The network the channel is located on
1136 * @param channelName
1137 * The name of the channel
1138 * @return The configured channel, or {@link Optional#absent()} if no
1139 * configured channel matching the given network and name was found
1141 public Optional<Channel> getChannel(Network network, String channelName) {
1142 for (Channel channel : channels) {
1143 if (channel.network().equals(network) && (channel.name().equalsIgnoreCase(channelName))) {
1144 return Optional.of(channel);
1147 return Optional.absent();
1151 * Returns the extra channel for the given network and name.
1154 * The network the channel is located on
1155 * @param channelName
1156 * The name of the channel
1157 * @return The extra channel, or {@link Optional#absent()} if no extra channel
1158 * matching the given network and name was found
1160 public Optional<Channel> getExtraChannel(Network network, String channelName) {
1161 for (Channel channel : extraChannels) {
1162 if (channel.network().equals(network) && (channel.name().equalsIgnoreCase(channelName))) {
1163 return Optional.of(channel);
1166 return Optional.absent();
1170 * Parses {@link Pack} information from the given message.
1173 * The message to parse pack information from
1174 * @return The parsed pack, or {@link Optional#absent()} if the message could
1175 * not be parsed into a pack
1177 private Optional<Pack> parsePack(String message) {
1178 int squareOpen = message.indexOf('[');
1179 int squareClose = message.indexOf(']', squareOpen);
1180 if ((squareOpen == -1) && (squareClose == -1)) {
1181 return Optional.absent();
1183 String packSize = message.substring(squareOpen + 1, squareClose);
1184 String packName = message.substring(message.lastIndexOf(' ') + 1);
1185 String packIndex = message.substring(0, message.indexOf(' ')).substring(1);
1186 return Optional.of(new Pack(packIndex, packSize, packName));