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 OPTION +ACTIVE");
324 connection.sendMessage(bot.name(), "XDCC SEND " + pack.id());
325 } catch (IOException ioe1) {
326 logger.warn("Could not send message to bot!", ioe1);
331 * Cancels the download of the given pack from the given bot.
334 * The bot the pack is being downloaded from
336 * The pack being downloaded
338 public void cancelDownload(Bot bot, Pack pack) {
339 Optional<Download> download = getDownload(pack, bot);
340 if (!download.isPresent()) {
344 /* stop the DCC receiver. */
345 if (download.get().dccReceiver() != null) {
346 download.get().dccReceiver().stop();
348 /* remove download if it hasn’t started yet. */
349 downloads.remove(pack.name(), download.get());
352 /* get connection. */
353 Connection connection = networkConnections.get(bot.network());
354 if (connection == null) {
355 /* request for unknown network? */
359 /* remove the request from the bot, too. */
361 connection.sendMessage(bot.name(), String.format("XDCC %s", (download.get().dccReceiver() != null) ? "CANCEL" : "REMOVE"));
362 } catch (IOException ioe1) {
363 logger.warn(String.format("Could not cancel DCC from %s (%s)!", bot.name(), bot.network().name()), ioe1);
368 * Closes the given connection.
371 * The connection to close
373 public void closeConnection(Connection connection) {
376 } catch (IOException ioe1) {
382 // ABSTRACTIDLESERVICE METHODS
386 protected void startUp() {
387 for (Channel channel : channels) {
388 logger.info(String.format("Connecting to Channel %s on Network %s…", channel.name(), channel.network().name()));
389 connectNetwork(channel.network());
392 /* notify listeners. */
393 eventBus.post(new CoreStarted(this));
397 protected void run() throws Exception {
398 while (isRunning()) {
400 Set<Channel> missingChannels = new HashSet<>();
401 for (Channel channel : channels) {
402 if (joinedChannels.contains(channel) || channelsBeingJoined.contains(channel)) {
405 if (channelBanManager.isBanned(channel)) {
408 if (!networkConnections.containsKey(channel.network()) || networkConnections.get(channel.network()).established()) {
409 missingChannels.add(channel);
412 Set<Network> missingNetworks = missingChannels.stream()
413 .map(Channel::network)
415 .filter((network) -> !networkConnections.containsKey(network))
418 if (missingNetworks.isEmpty()) {
419 if (!missingChannels.isEmpty()) {
420 for (Channel missingChannel : missingChannels) {
421 Network network = missingChannel.network();
422 eventBus.post(new GenericMessage(String.format("Trying to join %s on %s...", missingChannel.name(), network)));
424 channelsBeingJoined.add(missingChannel);
425 networkConnections.get(network).joinChannel(missingChannel.name());
426 } catch (IOException ioe1) {
427 logger.warn(String.format("Could not join %s on %s!", missingChannel.name(), network.name()), ioe1);
431 synchronized (syncObject) {
433 syncObject.wait(TimeUnit.MINUTES.toMillis(1));
434 } catch (InterruptedException ie1) {
442 Map<Long, Network> timesForNextConnects = new TreeMap<>(missingNetworks.stream()
443 .collect(Collectors.toMap(connectionBackoff::getConnectionTime, Function.identity(), (network, ignore) -> network)));
445 Optional<Entry<Long, Network>> firstNetwork = Optional.fromNullable(timesForNextConnects.entrySet().stream().findFirst().orElse(null));
446 if (!firstNetwork.isPresent()) {
449 if (firstNetwork.get().getKey() > System.currentTimeMillis()) {
450 eventBus.post(new GenericMessage(String.format("Will connect to %2$s at %1$tH:%1$tM...", firstNetwork.get().getKey(), firstNetwork.get().getValue().name())));
451 synchronized (syncObject) {
453 syncObject.wait(firstNetwork.get().getKey() - System.currentTimeMillis());
454 } catch (InterruptedException ie1) {
461 if (firstNetwork.get().getKey() > System.currentTimeMillis()) {
466 connectNetwork(firstNetwork.get().getValue());
471 protected void triggerShutdown() {
472 synchronized (syncObject) {
473 syncObject.notifyAll();
482 * Starts a new connection for the given network if no such connection exists
486 * The network to connect to
488 private void connectNetwork(Network network) {
489 if (!networkConnections.containsKey(network)) {
490 /* select a random server. */
491 List<Server> servers = Lists.newArrayList(network.servers());
492 if (servers.isEmpty()) {
493 eventBus.post(new GenericError(String.format("Network %s does not have any servers.", network.name())));
496 Server server = servers.get((int) (Math.random() * servers.size()));
497 eventBus.post(new GenericMessage(String.format("Connecting to %s on %s...", network.name(), server.hostname())));
498 Connection connection = connectionFactory.createConnection(server.hostname(),
499 server.unencryptedPorts().iterator().next());
500 connection.username(RandomNickname.get()).realName(RandomNickname.get());
501 networkConnections.put(network, connection);
507 * Removes the given connection and all its channels and bots.
510 * The connection to remove
512 private void removeConnection(Connection connection) {
513 logger.debug(String.format("Removing Connection %s...", connection));
514 Optional<Network> network = getNetwork(connection);
515 if (!network.isPresent()) {
516 logger.debug(String.format("Connection %s did not belong to any network.", connection));
519 logger.debug(String.format("Connection %s belongs to network %s.", connection, network.get()));
520 networkConnections.remove(network.get());
522 /* find all channels that need to be removed. */
523 for (Collection<Channel> channels : ImmutableList.of(joinedChannels, extraChannels)) {
524 for (Iterator<Channel> channelIterator = channels.iterator(); channelIterator.hasNext(); ) {
525 Channel joinedChannel = channelIterator.next();
526 if (!joinedChannel.network().equals(network.get())) {
529 logger.debug(String.format("Channel %s will be removed.", joinedChannel));
530 channelIterator.remove();
534 /* now remove all bots for that network. */
535 Map<String, Bot> bots = networkBots.row(network.get());
536 int botCount = bots.size();
538 for (Bot bot : bots.values()) {
539 packCount += bot.packs().size();
542 eventBus.post(new GenericMessage(String.format("Network %s disconnected, %d bots removed, %d packs removed.", network.get().name(), botCount, packCount)));
550 * If a connection to a network has been established, the channels associated
551 * with this network are joined.
553 * @param connectionEstablished
554 * The connection established event
557 public void connectionEstablished(ConnectionEstablished connectionEstablished) {
559 /* get network for connection. */
560 Optional<Network> network = getNetwork(connectionEstablished.connection());
563 if (!network.isPresent()) {
564 eventBus.post(new GenericMessage(String.format("Connected to unknown network: %s", connectionEstablished.connection().hostname())));
568 connectionBackoff.connectionSuccessful(network.get());
569 eventBus.post(new GenericMessage(String.format("Connected to network %s.", network.get().name())));
571 /* join all channels on this network. */
572 for (Channel channel : channels) {
573 if (channel.network().equals(network.get())) {
575 eventBus.post(new GenericMessage(String.format("Trying to join %s on %s...", channel.name(), network.get().name())));
576 connectionEstablished.connection().joinChannel(channel.name());
577 } catch (IOException ioe1) {
578 logger.warn(String.format("Could not join %s on %s!", channel.name(), network.get().name()), ioe1);
585 * Remove all data stored for a network if the connection is closed.
587 * @param connectionClosed
588 * The connection closed event
591 public void connectionClosed(ConnectionClosed connectionClosed) {
592 connectionBackoff.connectionFailed(getNetwork(connectionClosed.connection()).get());
593 removeConnection(connectionClosed.connection());
594 synchronized (syncObject) {
595 syncObject.notifyAll();
597 eventBus.post(new GenericMessage(String.format("Connection closed by %s.", connectionClosed.connection().hostname())));
601 * Remove all data stored for a network if the connection fails.
603 * @param connectionFailed
604 * The connection failed event
607 public void connectionFailed(ConnectionFailed connectionFailed) {
608 connectionBackoff.connectionFailed(getNetwork(connectionFailed.connection()).get());
609 removeConnection(connectionFailed.connection());
610 synchronized (syncObject) {
611 syncObject.notifyAll();
613 eventBus.post(new GenericMessage(String.format("Could not connect to %s: %s.", connectionFailed.connection().hostname(), connectionFailed.cause())));
617 * Shows a message when a channel was joined by us.
619 * @param channelJoined
620 * The channel joined event
623 public void channelJoined(ChannelJoined channelJoined) {
624 if (channelJoined.connection().isSource(channelJoined.client())) {
625 Optional<Network> network = getNetwork(channelJoined.connection());
626 if (!network.isPresent()) {
630 Optional<Channel> channel = getChannel(network.get(), channelJoined.channel());
631 if (!channel.isPresent()) {
632 /* it’s an extra channel. */
633 extraChannels.add(new Channel(network.get(), channelJoined.channel()));
634 logger.info(String.format("Joined extra Channel %s on %s.", channelJoined.channel(), network.get().name()));
638 channelBanManager.unban(channel.get());
639 joinedChannels.add(channel.get());
640 channelsBeingJoined.remove(channel.get());
641 logger.info(String.format("Joined Channel %s on %s.", channelJoined.channel(), network.get().name()));
646 public void channelNotJoined(ChannelNotJoined channelNotJoined) {
647 Optional<Network> network = getNetwork(channelNotJoined.connection());
648 if (!network.isPresent()) {
652 Optional<Channel> channel = getChannel(network.get(), channelNotJoined.channel());
653 synchronized (syncObject) {
654 syncObject.notifyAll();
656 if (!channel.isPresent()) {
657 eventBus.post(new GenericMessage(format("Could not join %s but didn’t try to join, either.", channelNotJoined.channel())));
660 channelsBeingJoined.remove(channel.get());
663 /* remove all bots for this channel, we might have been kicked. */
664 Collection<Bot> botsToRemove = networkBots.row(network.get())
666 .filter(bot -> bot.channel()
667 .equalsIgnoreCase(channel.get().name()))
669 botsToRemove.stream()
670 .forEach(bot -> networkBots.row(network.get())
671 .remove(bot.name()));
673 channelBanManager.ban(channel.get());
674 if (channelNotJoined.reason() == registeredNicknamesOnly) {
675 eventBus.post(new GenericMessage(
676 format("%s requires nickname registration, suspending join for a day.",
678 } else if (channelNotJoined.reason() == inviteOnly) {
679 eventBus.post(new GenericMessage(
680 format("%s is invite-only, suspending join for a day.",
682 } else if (channelNotJoined.reason() == banned) {
683 eventBus.post(new GenericMessage(
684 format("Banned from %s, suspending join for a day.",
687 eventBus.post(new GenericMessage(
688 format("Could not join %s: %s", channelNotJoined.channel(),
689 channelNotJoined.reason())));
694 * Removes bots that leave a channel, or channels when it’s us that’s leaving.
697 * The channel left event
700 public void channelLeft(ChannelLeft channelLeft) {
701 Optional<Network> network = getNetwork(channelLeft.connection());
702 if (!network.isPresent()) {
706 Bot bot = networkBots.get(network.get(), channelLeft.client().nick().get());
708 /* maybe it was us? */
709 if (channelLeft.connection().isSource(channelLeft.client())) {
710 Optional<Channel> channel = getChannel(network.get(), channelLeft.channel());
711 if (!channel.isPresent()) {
712 /* maybe it was an extra channel? */
713 channel = getExtraChannel(network.get(), channelLeft.channel());
714 if (!channel.isPresent()) {
715 /* okay, whatever. */
719 extraChannels.remove(channel);
721 channels.remove(channel.get());
723 synchronized (syncObject) {
724 syncObject.notifyAll();
727 eventBus.post(new GenericMessage(String.format("Left Channel %s on %s.", channel.get().name(), channel.get().network().name())));
733 networkBots.remove(network.get(), channelLeft.client().nick().get());
737 public void kickedFromChannel(KickedFromChannel kickedFromChannel) {
738 Optional<Network> network = getNetwork(kickedFromChannel.connection());
739 if (!network.isPresent()) {
743 /* have we been kicked? */
744 if (nicknameMatchesConnection(kickedFromChannel.connection(), kickedFromChannel.kickee())) {
745 Optional<Channel> channel = getChannel(network.get(), kickedFromChannel.channel());
746 if (!channel.isPresent()) {
747 /* maybe it was an extra channel? */
748 channel = getExtraChannel(network.get(), kickedFromChannel.channel());
749 if (!channel.isPresent()) {
750 /* okay, whatever. */
754 extraChannels.remove(channel.get());
756 joinedChannels.remove(channel.get());
758 synchronized (syncObject) {
759 syncObject.notifyAll();
761 eventBus.post(new GenericMessage(format(
762 "Kicked from %s by %s: %s",
763 kickedFromChannel.channel(),
764 kickedFromChannel.kicker(),
765 kickedFromChannel.reason().orElse("<unknown>")
770 private boolean nicknameMatchesConnection(Connection connection, String nickname) {
771 return connection.nickname().equalsIgnoreCase(nickname);
775 * Removes a client (which may be a bot) from the table of known bots.
778 * The client quit event
781 public void clientQuit(ClientQuit clientQuit) {
782 Optional<Network> network = getNetwork(clientQuit.connection());
783 if (!network.isPresent()) {
787 networkBots.remove(network.get(), clientQuit.client().nick().get());
791 * If the nickname of a bit changes, remove it from the old name and store it
792 * under the new name.
794 * @param nicknameChanged
795 * The nickname changed event
798 public void nicknameChanged(NicknameChanged nicknameChanged) {
799 Optional<Network> network = getNetwork(nicknameChanged.connection());
800 if (!network.isPresent()) {
804 Bot bot = networkBots.remove(network.get(), nicknameChanged.client().nick().get());
809 networkBots.put(network.get(), nicknameChanged.newNickname(), bot);
813 * If a message on a channel is received, it is parsed for pack information
814 * with is then added to a bot.
816 * @param channelMessageReceived
817 * The channel message received event
820 public void channelMessageReceived(ChannelMessageReceived channelMessageReceived) {
821 String message = getDefaultInstance().clean(channelMessageReceived.message());
822 if (!message.startsWith("#")) {
823 /* most probably not a pack announcement. */
827 Optional<Network> network = getNetwork(channelMessageReceived.connection());
828 if (!network.isPresent()) {
829 /* message for unknown connection? */
833 /* parse pack information. */
834 Optional<Pack> pack = parsePack(message);
835 if (!pack.isPresent()) {
840 synchronized (networkBots) {
841 if (!networkBots.contains(network.get(), channelMessageReceived.source().nick().get())) {
842 bot = new Bot(network.get(), channelMessageReceived.channel(),
843 channelMessageReceived.source().nick().get());
844 networkBots.put(network.get(), channelMessageReceived.source().nick().get(), bot);
845 eventBus.post(new BotAdded(bot));
847 bot = networkBots.get(network.get(), channelMessageReceived.source().nick().get());
852 bot.addPack(pack.get());
853 logger.debug(String.format("Bot %s now has %d packs.", bot, bot.packs().size()));
857 * Forward all private messages to every console.
859 * @param privateMessageReceived
860 * The private message recevied event
863 public void privateMessageReceived(PrivateMessageReceived privateMessageReceived) {
864 eventBus.post(new MessageReceived(privateMessageReceived.source(), privateMessageReceived.message()));
868 * Sends a message to all console when a notice was received.
870 * @param privateNoticeReceived
871 * The notice received event
874 public void privateNoticeReceived(PrivateNoticeReceived privateNoticeReceived) {
875 Optional<Network> network = getNetwork(privateNoticeReceived.connection());
876 if (!network.isPresent()) {
880 eventBus.post(new GenericMessage(String.format("Notice from %s (%s): %s", privateNoticeReceived.source(), network.get(), privateNoticeReceived.text())));
884 * Starts a DCC download.
886 * @param dccSendReceived
890 public void dccSendReceived(final DccSendReceived dccSendReceived) {
891 final Optional<Network> network = getNetwork(dccSendReceived.connection());
892 eventBus.post(new GenericMessage(format("Got DCC Send from %s for %s.", dccSendReceived.source(), dccSendReceived.filename())));
893 if (!network.isPresent()) {
897 Set<Download> openDownloads = downloads.values().stream()
898 .filter(download -> download.bot().name().equalsIgnoreCase(dccSendReceived.source().nick().orNull()))
899 .filter(download -> download.dccReceiver() == null)
902 if (openDownloads.isEmpty()) {
903 /* I don't think we requested this. */
904 eventBus.post(new GenericMessage(format("Ignoring offer for %s, no open download from %s.", dccSendReceived.filename(), dccSendReceived.source())));
908 /* check if it’s already downloading. */
909 if (downloads.values().stream().anyMatch(download -> Objects.equals(download.filename(), dccSendReceived.filename()) && download.dccReceiver() != null)) {
910 eventBus.post(new GenericMessage(format("Ignoring offer for %s, it’s already being downloaded.", dccSendReceived.filename())));
914 Download download = openDownloads.stream()
915 .filter(it -> Objects.equals(it.filename(), dccSendReceived.filename()))
917 .orElse(openDownloads.iterator().next());
918 eventBus.post(new GenericMessage(format("Downloading %s from %s as %s.", dccSendReceived.filename(), dccSendReceived.source(), download.pack().name())));
920 /* check if the file already exists. */
921 File outputFile = new File(temporaryDirectory, dccSendReceived.filename());
922 if (outputFile.exists()) {
923 long existingFileSize = outputFile.length();
925 /* file already complete? */
926 if ((dccSendReceived.filesize() > -1) && (existingFileSize >= dccSendReceived.filesize())) {
927 /* file is apparently already complete. just move it. */
928 if (outputFile.renameTo(new File(finalDirectory, download.pack().name()))) {
929 eventBus.post(new GenericMessage(String.format("File %s already downloaded.", download.pack().name())));
931 eventBus.post(new GenericMessage(String.format("File %s already downloaded but not moved to %s.", download.pack().name(), finalDirectory)));
934 /* remove download. */
935 downloads.removeAll(download.pack().name());
939 /* file not complete yet, DCC resume it. */
941 download.remoteAddress(dccSendReceived.inetAddress()).filesize(dccSendReceived.filesize());
942 dccSendReceived.connection().sendDccResume(dccSendReceived.source().nick().get(), dccSendReceived.filename(), dccSendReceived.port(), existingFileSize);
943 } catch (IOException ioe1) {
944 eventBus.post(new GenericError(String.format("Could not send DCC RESUME %s to %s (%s).", dccSendReceived.filename(), dccSendReceived.source().nick().get(), ioe1.getMessage())));
950 /* file does not exist, start the download. */
952 OutputStream fileOutputStream = new FileOutputStream(outputFile);
953 DccReceiver dccReceiver = new DccReceiver(eventBus, dccSendReceived.inetAddress(), dccSendReceived.port(), dccSendReceived.filename(), dccSendReceived.filesize(), fileOutputStream);
954 download.filename(outputFile.getPath()).outputStream(fileOutputStream).dccReceiver(dccReceiver);
955 dccReceivers.add(dccReceiver);
957 eventBus.post(new DownloadStarted(download));
958 } catch (FileNotFoundException fnfe1) {
959 eventBus.post(new GenericError(String.format("Could not start download of %s from %s (%s).", dccSendReceived.filename(), dccSendReceived.source().nick().get(), fnfe1.getMessage())));
964 public void dccAcceptReceived(final DccAcceptReceived dccAcceptReceived) {
965 final Optional<Network> network = getNetwork(dccAcceptReceived.connection());
966 if (!network.isPresent()) {
970 Collection<Download> packDownloads = downloads.get(dccAcceptReceived.filename());
971 if (packDownloads.isEmpty()) {
972 /* unknown download, ignore. */
976 /* check if it’s already downloading. */
977 Collection<Download> runningDownloads = FluentIterable.from(packDownloads).filter(FILTER_RUNNING).toSet();
978 if (!runningDownloads.isEmpty()) {
979 eventBus.post(new GenericMessage(String.format("Ignoring offer for %s, it’s already being downloaded.", dccAcceptReceived.filename())));
983 /* locate the correct download. */
984 Collection<Download> requestedDownload = FluentIterable.from(packDownloads).filter(new Predicate<Download>() {
987 public boolean apply(Download download) {
988 return download.bot().network().equals(network.get()) && download.bot().name().equalsIgnoreCase(dccAcceptReceived.source().nick().get());
992 /* we did not request this download. */
993 if (requestedDownload.isEmpty()) {
997 Download download = requestedDownload.iterator().next();
1000 File outputFile = new File(temporaryDirectory, dccAcceptReceived.filename());
1001 if (outputFile.length() != dccAcceptReceived.position()) {
1002 eventBus.post(new GenericError(String.format("Download %s from %s does not start at the right position!")));
1003 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()));
1005 downloads.removeAll(download.pack().name());
1008 OutputStream outputStream = new FileOutputStream(outputFile, true);
1009 DccReceiver dccReceiver = new DccReceiver(eventBus, download.remoteAddress(), dccAcceptReceived.port(), dccAcceptReceived.filename(), dccAcceptReceived.position(), download.filesize(), outputStream);
1010 download.filename(outputFile.getPath()).outputStream(outputStream).dccReceiver(dccReceiver);
1011 dccReceivers.add(dccReceiver);
1012 dccReceiver.start();
1013 eventBus.post(new DownloadStarted(download));
1014 } catch (FileNotFoundException fnfe1) {
1019 * Closes the output stream of the download and moves the file to the final
1022 * @param dccDownloadFinished
1023 * The DCC download finished event
1026 public void dccDownloadFinished(DccDownloadFinished dccDownloadFinished) {
1028 /* locate the correct download. */
1029 Collection<Download> requestedDownload = FluentIterable.from(downloads.get(dccDownloadFinished.dccReceiver().filename())).filter(FILTER_RUNNING).toSet();
1030 if (requestedDownload.isEmpty()) {
1031 /* this seems wrong. */
1032 logger.warn("Download finished but could not be located.");
1035 Download download = requestedDownload.iterator().next();
1038 download.outputStream().close();
1039 File file = new File(download.filename());
1040 file.renameTo(new File(finalDirectory, download.pack().name()));
1041 eventBus.post(new DownloadFinished(download));
1042 dccReceivers.remove(dccDownloadFinished.dccReceiver());
1043 downloads.removeAll(download.pack().name());
1044 } catch (IOException ioe1) {
1045 /* TODO - handle all the errors. */
1046 logger.warn(String.format("Could not move file %s to directory %s.", download.filename(), finalDirectory), ioe1);
1051 * Closes the output stream and notifies all listeners of the failure.
1053 * @param dccDownloadFailed
1054 * The DCC download failed event
1057 public void dccDownloadFailed(DccDownloadFailed dccDownloadFailed) {
1059 /* locate the correct download. */
1060 Collection<Download> requestedDownload = FluentIterable.from(downloads.get(dccDownloadFailed.dccReceiver().filename())).filter(FILTER_RUNNING).toSet();
1061 if (requestedDownload.isEmpty()) {
1062 /* this seems wrong. */
1063 logger.warn("Download finished but could not be located.");
1066 Download download = requestedDownload.iterator().next();
1069 Closeables.close(download.outputStream(), true);
1070 eventBus.post(new DownloadFailed(download));
1071 dccReceivers.remove(dccDownloadFailed.dccReceiver());
1072 downloads.removeAll(download.pack().name());
1073 } catch (IOException ioe1) {
1074 /* swallow silently. */
1079 public void replyReceived(ReplyReceived replyReceived) {
1080 logger.trace(String.format("%s: %s", replyReceived.connection().hostname(), replyReceived.reply()));
1088 * Returns the download of the given pack from the given bot.
1091 * The pack being downloaded
1093 * The bot the pack is being downloaded from
1094 * @return The download, or {@link Optional#absent()} if the download could not
1097 private Optional<Download> getDownload(Pack pack, Bot bot) {
1098 if (!downloads.containsKey(pack.name())) {
1099 return Optional.absent();
1101 for (Download download : Lists.newArrayList(downloads.get(pack.name()))) {
1102 if (download.bot().equals(bot)) {
1103 return Optional.of(download);
1106 return Optional.absent();
1110 * Searches all current connections for the given connection, returning the
1111 * associated network.
1114 * The connection to get the network for
1115 * @return The network belonging to the connection, or {@link
1116 * Optional#absent()}
1118 private Optional<Network> getNetwork(Connection connection) {
1119 for (Entry<Network, Connection> networkConnectionEntry : networkConnections.entrySet()) {
1120 if (networkConnectionEntry.getValue().equals(connection)) {
1121 return Optional.of(networkConnectionEntry.getKey());
1124 return Optional.absent();
1128 * Returns the configured channel for the given network and name.
1131 * The network the channel is located on
1132 * @param channelName
1133 * The name of the channel
1134 * @return The configured channel, or {@link Optional#absent()} if no
1135 * configured channel matching the given network and name was found
1137 public Optional<Channel> getChannel(Network network, String channelName) {
1138 for (Channel channel : channels) {
1139 if (channel.network().equals(network) && (channel.name().equalsIgnoreCase(channelName))) {
1140 return Optional.of(channel);
1143 return Optional.absent();
1147 * Returns the extra channel for the given network and name.
1150 * The network the channel is located on
1151 * @param channelName
1152 * The name of the channel
1153 * @return The extra channel, or {@link Optional#absent()} if no extra channel
1154 * matching the given network and name was found
1156 public Optional<Channel> getExtraChannel(Network network, String channelName) {
1157 for (Channel channel : extraChannels) {
1158 if (channel.network().equals(network) && (channel.name().equalsIgnoreCase(channelName))) {
1159 return Optional.of(channel);
1162 return Optional.absent();
1166 * Parses {@link Pack} information from the given message.
1169 * The message to parse pack information from
1170 * @return The parsed pack, or {@link Optional#absent()} if the message could
1171 * not be parsed into a pack
1173 private Optional<Pack> parsePack(String message) {
1174 int squareOpen = message.indexOf('[');
1175 int squareClose = message.indexOf(']', squareOpen);
1176 if ((squareOpen == -1) && (squareClose == -1)) {
1177 return Optional.absent();
1179 String packSize = message.substring(squareOpen + 1, squareClose);
1180 String packName = message.substring(message.lastIndexOf(' ') + 1);
1181 String packIndex = message.substring(0, message.indexOf(' ')).substring(1);
1182 return Optional.of(new Pack(packIndex, packSize, packName));