package net.pterodactylus.xdcc.core;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
import java.io.IOException;
+import java.io.OutputStream;
import java.util.Collection;
import java.util.Collections;
+import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
+import java.util.concurrent.TimeUnit;
import java.util.logging.Level;
import java.util.logging.Logger;
import net.pterodactylus.irc.Connection;
import net.pterodactylus.irc.ConnectionBuilder;
+import net.pterodactylus.irc.DccReceiver;
+import net.pterodactylus.irc.event.ChannelJoined;
+import net.pterodactylus.irc.event.ChannelLeft;
import net.pterodactylus.irc.event.ChannelMessageReceived;
+import net.pterodactylus.irc.event.ClientQuit;
+import net.pterodactylus.irc.event.ConnectionClosed;
import net.pterodactylus.irc.event.ConnectionEstablished;
+import net.pterodactylus.irc.event.DccAcceptReceived;
+import net.pterodactylus.irc.event.DccDownloadFailed;
+import net.pterodactylus.irc.event.DccDownloadFinished;
+import net.pterodactylus.irc.event.DccSendReceived;
+import net.pterodactylus.irc.event.NicknameChanged;
+import net.pterodactylus.irc.event.PrivateNoticeReceived;
+import net.pterodactylus.irc.event.PrivateMessageReceived;
import net.pterodactylus.irc.util.MessageCleaner;
import net.pterodactylus.irc.util.RandomNickname;
+import net.pterodactylus.xdcc.core.event.BotAdded;
import net.pterodactylus.xdcc.core.event.CoreStarted;
+import net.pterodactylus.xdcc.core.event.DownloadFailed;
+import net.pterodactylus.xdcc.core.event.DownloadFinished;
+import net.pterodactylus.xdcc.core.event.DownloadStarted;
+import net.pterodactylus.xdcc.core.event.GenericError;
+import net.pterodactylus.xdcc.core.event.GenericMessage;
+import net.pterodactylus.xdcc.core.event.MessageReceived;
import net.pterodactylus.xdcc.data.Bot;
import net.pterodactylus.xdcc.data.Channel;
+import net.pterodactylus.xdcc.data.Download;
import net.pterodactylus.xdcc.data.Network;
import net.pterodactylus.xdcc.data.Pack;
import net.pterodactylus.xdcc.data.Server;
-import com.beust.jcommander.internal.Maps;
-import com.beust.jcommander.internal.Sets;
import com.google.common.base.Optional;
import com.google.common.collect.HashBasedTable;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Lists;
+import com.google.common.collect.Maps;
+import com.google.common.collect.Sets;
import com.google.common.collect.Table;
import com.google.common.eventbus.EventBus;
import com.google.common.eventbus.Subscribe;
-import com.google.common.util.concurrent.AbstractIdleService;
+import com.google.common.io.Closeables;
+import com.google.common.util.concurrent.AbstractExecutionThreadService;
import com.google.inject.Inject;
/**
*
* @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
*/
-public class Core extends AbstractIdleService {
+public class Core extends AbstractExecutionThreadService {
/** The logger. */
private static final Logger logger = Logger.getLogger(Core.class.getName());
/** The event bus. */
private final EventBus eventBus;
+ /** The temporary directory to download files to. */
+ private final String temporaryDirectory;
+
+ /** The directory to move finished downloads to. */
+ private final String finalDirectory;
+
/** The channels that should be monitored. */
private final Collection<Channel> channels = Sets.newHashSet();
+ /** The channels that are currentlymonitored. */
+ private final Collection<Channel> joinedChannels = Sets.newHashSet();
+
+ /** The channels that are joined but not configured. */
+ private final Collection<Channel> extraChannels = Sets.newHashSet();
+
/** The current network connections. */
private final Map<Network, Connection> networkConnections = Collections.synchronizedMap(Maps.<Network, Connection>newHashMap());
/** The currently known bots. */
private final Table<Network, String, Bot> networkBots = HashBasedTable.create();
+ /** The current downloads. */
+ private final Map<String, Download> downloads = Maps.newHashMap();
+
+ /** The current DCC receivers. */
+ private final Collection<DccReceiver> dccReceivers = Lists.newArrayList();
+
/**
* Creates a new core.
*
* @param eventBus
* The event bus
+ * @param temporaryDirectory
+ * The directory to download files to
+ * @param finalDirectory
+ * The directory to move finished files to
*/
@Inject
- public Core(EventBus eventBus) {
+ public Core(EventBus eventBus, String temporaryDirectory, String finalDirectory) {
this.eventBus = eventBus;
+ this.temporaryDirectory = temporaryDirectory;
+ this.finalDirectory = finalDirectory;
+ }
+
+ //
+ // ACCESSORS
+ //
+
+ /**
+ * Returns all configured channels. Due to various circumstances, configured
+ * channels might not actually be joined.
+ *
+ * @return All configured channels
+ */
+ public Collection<Channel> channels() {
+ return ImmutableSet.copyOf(channels);
+ }
+
+ /**
+ * Returns all currently joined channels.
+ *
+ * @return All currently joined channels
+ */
+ public Collection<Channel> joinedChannels() {
+ return ImmutableSet.copyOf(joinedChannels);
+ }
+
+ /**
+ * Returns all currently joined channels that are not configured.
+ *
+ * @return All currently joined but not configured channels
+ */
+ public Collection<Channel> extraChannels() {
+ return ImmutableSet.copyOf(extraChannels);
+ }
+
+ /**
+ * Returns all currently known bots.
+ *
+ * @return All currently known bots
+ */
+ public Collection<Bot> bots() {
+ return networkBots.values();
+ }
+
+ /**
+ * Returns the currently active DCC receivers.
+ *
+ * @return The currently active DCC receivers
+ */
+ public Collection<DccReceiver> dccReceivers() {
+ return dccReceivers;
}
//
channels.add(channel);
}
+ /**
+ * Fetches the given pack from the given bot.
+ *
+ * @param bot
+ * The bot to fetch the pack from
+ * @param pack
+ * The pack to fetch
+ */
+ public void fetch(Bot bot, Pack pack) {
+ Connection connection = networkConnections.get(bot.network());
+ if (connection == null) {
+ return;
+ }
+
+ Download download = new Download(bot, pack);
+ downloads.put(pack.name(), download);
+
+ try {
+ connection.sendMessage(bot.name(), "XDCC SEND " + pack.id());
+ } catch (IOException ioe1) {
+ logger.log(Level.WARNING, "Could not send message to bot!", ioe1);
+ }
+ }
+
//
// ABSTRACTIDLESERVICE METHODS
//
protected void startUp() {
for (Channel channel : channels) {
logger.info(String.format("Connecting to Channel %s on Network %s…", channel.name(), channel.network().name()));
- if (!networkConnections.containsKey(channel.network())) {
- /* select a random server. */
- List<Server> servers = Lists.newArrayList(channel.network().servers());
- Server server = servers.get((int) (Math.random() * servers.size()));
- Connection connection = new ConnectionBuilder(eventBus).connect(server.hostname()).port(server.unencryptedPorts().iterator().next()).build();
- connection.username(RandomNickname.get()).realName(RandomNickname.get());
- networkConnections.put(channel.network(), connection);
- connection.start();
- }
+ connectNetwork(channel.network());
}
/* notify listeners. */
}
@Override
+ protected void run() throws Exception {
+ while (isRunning()) {
+ try {
+ Thread.sleep(TimeUnit.MINUTES.toMillis(1));
+ } catch (InterruptedException ie1) {
+ /* ignore. */
+ }
+
+ /* find channels that should be monitored but are not. */
+ for (Channel channel : channels) {
+ if (joinedChannels.contains(channel)) {
+ continue;
+ }
+
+ connectNetwork(channel.network());
+ Connection connection = networkConnections.get(channel.network());
+ if (connection.established()) {
+ eventBus.post(new GenericMessage(String.format("Trying to join %s on %s.", channel.name(), channel.network().name())));
+ connection.joinChannel(channel.name());
+ }
+ }
+ }
+ }
+
+ @Override
protected void shutDown() {
}
//
+ // PRIVATE METHODS
+ //
+
+ /**
+ * Starts a new connection for the given network if no such connection exists
+ * already.
+ *
+ * @param network
+ * The network to connect to
+ */
+ private void connectNetwork(Network network) {
+ if (!networkConnections.containsKey(network)) {
+ /* select a random server. */
+ List<Server> servers = Lists.newArrayList(network.servers());
+ if (servers.isEmpty()) {
+ eventBus.post(new GenericError(String.format("Network %s does not have any servers.", network.name())));
+ return;
+ }
+ Server server = servers.get((int) (Math.random() * servers.size()));
+ Connection connection = new ConnectionBuilder(eventBus).connect(server.hostname()).port(server.unencryptedPorts().iterator().next()).build();
+ connection.username(RandomNickname.get()).realName(RandomNickname.get());
+ networkConnections.put(network, connection);
+ connection.start();
+ }
+ }
+
+ //
// EVENT HANDLERS
//
}
/**
+ * Remove all data stored for a network if the connection is closed.
+ *
+ * @param connectionClosed
+ * The connection closed event
+ */
+ @Subscribe
+ public void connectionClosed(ConnectionClosed connectionClosed) {
+ Optional<Network> network = getNetwork(connectionClosed.connection());
+ if (!network.isPresent()) {
+ return;
+ }
+
+ /* find all channels that need to be removed. */
+ for (Collection channels : ImmutableList.of(joinedChannels, extraChannels)) {
+ for (Iterator<Channel> channelIterator = channels.iterator(); channelIterator.hasNext(); ) {
+ Channel joinedChannel = channelIterator.next();
+ if (!joinedChannel.network().equals(network.get())) {
+ continue;
+ }
+
+ channelIterator.remove();
+ }
+ }
+
+ /* now remove all bots for that network. */
+ Map<String, Bot> bots = networkBots.row(network.get());
+ int botCount = bots.size();
+ int packCount = 0;
+ for (Bot bot : bots.values()) {
+ packCount += bot.packs().size();
+ }
+ bots.clear();
+ eventBus.post(new GenericMessage(String.format("Network %s disconnected, %d bots removed, %d packs removed.", network.get().name(), botCount, packCount)));
+
+ /* now remove the network. */
+ networkConnections.remove(network.get());
+ }
+
+ /**
+ * Shows a message when a channel was joined by us.
+ *
+ * @param channelJoined
+ * The channel joined event
+ */
+ @Subscribe
+ public void channelJoined(ChannelJoined channelJoined) {
+ if (channelJoined.connection().isSource(channelJoined.client())) {
+ Optional<Network> network = getNetwork(channelJoined.connection());
+ if (!network.isPresent()) {
+ return;
+ }
+
+ Optional<Channel> channel = getChannel(network.get(), channelJoined.channel());
+ if (!channel.isPresent()) {
+ /* it’s an extra channel. */
+ extraChannels.add(new Channel(network.get(), channelJoined.channel()));
+ logger.info(String.format("Joined extra Channel %s on %s.", channelJoined.channel(), network.get().name()));
+ return;
+ }
+
+ joinedChannels.add(channel.get());
+ logger.info(String.format("Joined Channel %s on %s.", channelJoined.channel(), network.get().name()));
+ }
+ }
+
+ /**
+ * Removes bots that leave a channel, or channels when it’s us that’s leaving.
+ *
+ * @param channelLeft
+ * The channel left event
+ */
+ @Subscribe
+ public void channelLeft(ChannelLeft channelLeft) {
+ Optional<Network> network = getNetwork(channelLeft.connection());
+ if (!network.isPresent()) {
+ return;
+ }
+
+ Bot bot = networkBots.get(network.get(), channelLeft.client().nick().get());
+ if (bot == null) {
+ /* maybe it was us? */
+ if (channelLeft.connection().isSource(channelLeft.client())) {
+ Optional<Channel> channel = getChannel(network.get(), channelLeft.channel());
+ if (!channel.isPresent()) {
+ /* maybe it was an extra channel? */
+ channel = getExtraChannel(network.get(), channelLeft.channel());
+ if (!channel.isPresent()) {
+ /* okay, whatever. */
+ return;
+ }
+
+ extraChannels.remove(channel);
+ } else {
+ channels.remove(channel.get());
+ }
+
+ eventBus.post(new GenericMessage(String.format("Left Channel %s on %s.", channel.get().name(), channel.get().network().name())));
+ }
+
+ return;
+ }
+
+ Bot removedBot = networkBots.remove(network.get(), channelLeft.client().nick().get());
+ if (removedBot != null) {
+ eventBus.post(new GenericMessage(String.format("Bot %s (%s) was removed, %d packs removed.", removedBot.name(), removedBot.network().name(), removedBot.packs().size())));
+ }
+ }
+
+ /**
+ * Removes a client (which may be a bot) from the table of known bots.
+ *
+ * @param clientQuit
+ * The client quit event
+ */
+ @Subscribe
+ public void clientQuit(ClientQuit clientQuit) {
+ Optional<Network> network = getNetwork(clientQuit.connection());
+ if (!network.isPresent()) {
+ return;
+ }
+
+ Bot removedBot = networkBots.remove(network.get(), clientQuit.client().nick().get());
+ if (removedBot != null) {
+ eventBus.post(new GenericMessage(String.format("Bot %s (%s) was removed, %d packs removed.", removedBot.name(), removedBot.network().name(), removedBot.packs().size())));
+ }
+ }
+
+ /**
+ * If the nickname of a bit changes, remove it from the old name and store it
+ * under the new name.
+ *
+ * @param nicknameChanged
+ * The nickname changed event
+ */
+ @Subscribe
+ public void nicknameChanged(NicknameChanged nicknameChanged) {
+ Optional<Network> network = getNetwork(nicknameChanged.connection());
+ if (!network.isPresent()) {
+ return;
+ }
+
+ Bot bot = networkBots.remove(network.get(), nicknameChanged.client().nick().get());
+ if (bot == null) {
+ return;
+ }
+
+ networkBots.put(network.get(), nicknameChanged.newNickname(), bot);
+ }
+
+ /**
* If a message on a channel is received, it is parsed for pack information
* with is then added to a bot.
*
return;
}
- Bot bot;
- synchronized (networkBots) {
- if (!networkBots.contains(network.get(), channelMessageReceived.source().nick().get())) {
- networkBots.put(network.get(), channelMessageReceived.source().nick().get(), new Bot(network.get()).name(channelMessageReceived.source().nick().get()));
- }
- bot = networkBots.get(network.get(), channelMessageReceived.source().nick().get());
- }
-
/* parse pack information. */
Optional<Pack> pack = parsePack(message);
if (!pack.isPresent()) {
return;
}
+ Bot bot;
+ synchronized (networkBots) {
+ if (!networkBots.contains(network.get(), channelMessageReceived.source().nick().get())) {
+ bot = new Bot(network.get()).name(channelMessageReceived.source().nick().get());
+ networkBots.put(network.get(), channelMessageReceived.source().nick().get(), bot);
+ eventBus.post(new BotAdded(bot));
+ } else {
+ bot = networkBots.get(network.get(), channelMessageReceived.source().nick().get());
+ }
+ }
+
/* add pack. */
bot.addPack(pack.get());
logger.fine(String.format("Bot %s now has %d packs.", bot, bot.packs().size()));
}
+ /**
+ * Forward all private messages to every console.
+ *
+ * @param privateMessageReceived
+ * The private message recevied event
+ */
+ @Subscribe
+ public void privateMessageReceived(PrivateMessageReceived privateMessageReceived) {
+ eventBus.post(new MessageReceived(privateMessageReceived.source(), privateMessageReceived.message()));
+ }
+
+ /**
+ * Sends a message to all console when a notice was received.
+ *
+ * @param privateNoticeReceived
+ * The notice received event
+ */
+ @Subscribe
+ public void privateNoticeReceived(PrivateNoticeReceived privateNoticeReceived) {
+ Optional<Network> network = getNetwork(privateNoticeReceived.connection());
+ if (!network.isPresent()) {
+ return;
+ }
+
+ eventBus.post(new GenericMessage(String.format("Notice from %s (%s): %s", privateNoticeReceived.reply().source(), network.get(), privateNoticeReceived.text())));
+ }
+
+ /**
+ * Starts a DCC download.
+ *
+ * @param dccSendReceived
+ * The DCC SEND event
+ */
+ @Subscribe
+ public void dccSendReceived(DccSendReceived dccSendReceived) {
+ Optional<Network> network = getNetwork(dccSendReceived.connection());
+ if (!network.isPresent()) {
+ return;
+ }
+
+ Download download = downloads.get(dccSendReceived.filename());
+ if (download == null) {
+ /* unknown download, ignore. */
+ return;
+ }
+
+ /* check if the file already exists. */
+ File outputFile = new File(temporaryDirectory, dccSendReceived.filename());
+ if (outputFile.exists()) {
+ long existingFileSize = outputFile.length();
+
+ /* file already complete? */
+ if ((dccSendReceived.filesize() > -1) && (existingFileSize >= dccSendReceived.filesize())) {
+ /* file is apparently already complete. just move it. */
+ if (outputFile.renameTo(new File(finalDirectory, download.pack().name()))) {
+ eventBus.post(new GenericMessage(String.format("File %s already downloaded.", download.pack().name())));
+ } else {
+ eventBus.post(new GenericMessage(String.format("File %s already downloaded but not moved to %s.", download.pack().name(), finalDirectory)));
+ }
+
+ /* remove download. */
+ downloads.remove(download.pack().name());
+ return;
+ }
+
+ /* file not complete yet, DCC resume it. */
+ try {
+ download.remoteAddress(dccSendReceived.inetAddress()).filesize(dccSendReceived.filesize());
+ dccSendReceived.connection().sendDccResume(dccSendReceived.source().nick().get(), dccSendReceived.filename(), dccSendReceived.port(), existingFileSize);
+ } catch (IOException ioe1) {
+ eventBus.post(new GenericError(String.format("Could not send DCC RESUME %s to %s (%s).", dccSendReceived.filename(), dccSendReceived.source().nick().get(), ioe1.getMessage())));
+ }
+
+ return;
+ }
+
+ /* file does not exist, start the download. */
+ try {
+ OutputStream fileOutputStream = new FileOutputStream(outputFile);
+ DccReceiver dccReceiver = new DccReceiver(eventBus, dccSendReceived.inetAddress(), dccSendReceived.port(), dccSendReceived.filename(), dccSendReceived.filesize(), fileOutputStream);
+ download.filename(outputFile.getPath()).outputStream(fileOutputStream).dccReceiver(dccReceiver);
+ dccReceivers.add(dccReceiver);
+ dccReceiver.start();
+ eventBus.post(new DownloadStarted(download));
+ } catch (FileNotFoundException fnfe1) {
+ eventBus.post(new GenericError(String.format("Could not start download of %s from %s (%s).", dccSendReceived.filename(), dccSendReceived.source().nick().get(), fnfe1.getMessage())));
+ }
+ }
+
+ @Subscribe
+ public void dccAcceptReceived(DccAcceptReceived dccAcceptReceived) {
+ Optional<Network> network = getNetwork(dccAcceptReceived.connection());
+ if (!network.isPresent()) {
+ return;
+ }
+
+ Download download = downloads.get(dccAcceptReceived.filename());
+ if (download == null) {
+ /* unknown download, ignore. */
+ return;
+ }
+
+ try {
+ File outputFile = new File(temporaryDirectory, dccAcceptReceived.filename());
+ if (outputFile.length() != dccAcceptReceived.position()) {
+ eventBus.post(new GenericError(String.format("Download %s from %s does not start at the right position!")));
+ logger.log(Level.WARNING, String.format("Download %s from %s: have %d bytes but wants to resume from %d!", dccAcceptReceived.filename(), dccAcceptReceived.source(), outputFile.length(), dccAcceptReceived.position()));
+
+ downloads.remove(download.pack().name());
+ return;
+ }
+ OutputStream outputStream = new FileOutputStream(outputFile, true);
+ DccReceiver dccReceiver = new DccReceiver(eventBus, download.remoteAddress(), dccAcceptReceived.port(), dccAcceptReceived.filename(), dccAcceptReceived.position(), download.filesize(), outputStream);
+ download.filename(outputFile.getPath()).outputStream(outputStream).dccReceiver(dccReceiver);
+ dccReceivers.add(dccReceiver);
+ dccReceiver.start();
+ eventBus.post(new DownloadStarted(download));
+ } catch (FileNotFoundException fnfe1) {
+ }
+ }
+
+ /**
+ * Closes the output stream of the download and moves the file to the final
+ * location.
+ *
+ * @param dccDownloadFinished
+ * The DCC download finished event
+ */
+ @Subscribe
+ public void dccDownloadFinished(DccDownloadFinished dccDownloadFinished) {
+ Download download = downloads.get(dccDownloadFinished.dccReceiver().filename());
+ if (download == null) {
+ /* probably shouldn’t happen. */
+ return;
+ }
+
+ try {
+ download.outputStream().close();
+ File file = new File(download.filename());
+ file.renameTo(new File(finalDirectory, download.pack().name()));
+ eventBus.post(new DownloadFinished(download));
+ dccReceivers.remove(dccDownloadFinished.dccReceiver());
+ downloads.remove(download.pack().name());
+ } catch (IOException ioe1) {
+ /* TODO - handle all the errors. */
+ logger.log(Level.WARNING, String.format("Could not move file %s to directory %s.", download.filename(), finalDirectory), ioe1);
+ }
+ }
+
+ /**
+ * Closes the output stream and notifies all listeners of the failure.
+ *
+ * @param dccDownloadFailed
+ * The DCC download failed event
+ */
+ @Subscribe
+ public void dccDownloadFailed(DccDownloadFailed dccDownloadFailed) {
+ Download download = downloads.get(dccDownloadFailed.dccReceiver().filename());
+ if (download == null) {
+ /* probably shouldn’t happen. */
+ return;
+ }
+
+ try {
+ Closeables.close(download.outputStream(), true);
+ eventBus.post(new DownloadFailed(download));
+ dccReceivers.remove(dccDownloadFailed.dccReceiver());
+ downloads.remove(download.pack().name());
+ } catch (IOException ioe1) {
+ /* swallow silently. */
+ }
+ }
+
//
// PRIVATE METHODS
//
}
/**
+ * Returns the configured channel for the given network and name.
+ *
+ * @param network
+ * The network the channel is located on
+ * @param channelName
+ * The name of the channel
+ * @return The configured channel, or {@link Optional#absent()} if no
+ * configured channel matching the given network and name was found
+ */
+ public Optional<Channel> getChannel(Network network, String channelName) {
+ for (Channel channel : channels) {
+ if (channel.network().equals(network) && (channel.name().equalsIgnoreCase(channelName))) {
+ return Optional.of(channel);
+ }
+ }
+ return Optional.absent();
+ }
+
+ /**
+ * Returns the extra channel for the given network and name.
+ *
+ * @param network
+ * The network the channel is located on
+ * @param channelName
+ * The name of the channel
+ * @return The extra channel, or {@link Optional#absent()} if no extra channel
+ * matching the given network and name was found
+ */
+ public Optional<Channel> getExtraChannel(Network network, String channelName) {
+ for (Channel channel : extraChannels) {
+ if (channel.network().equals(network) && (channel.name().equalsIgnoreCase(channelName))) {
+ return Optional.of(channel);
+ }
+ }
+ return Optional.absent();
+ }
+
+ /**
* Parses {@link Pack} information from the given message.
*
* @param message