--- /dev/null
+/*
+ * XdccDownloader - Core.java - Copyright © 2013 David Roden
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package net.pterodactylus.xdcc.core;
+
+import java.io.IOException;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import net.pterodactylus.irc.Connection;
+import net.pterodactylus.irc.ConnectionBuilder;
+import net.pterodactylus.irc.event.ChannelMessageReceived;
+import net.pterodactylus.irc.event.ConnectionEstablished;
+import net.pterodactylus.irc.util.MessageCleaner;
+import net.pterodactylus.irc.util.RandomNickname;
+import net.pterodactylus.xdcc.data.Bot;
+import net.pterodactylus.xdcc.data.Channel;
+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.Lists;
+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.inject.Inject;
+
+/**
+ * The core of XDCC Downloader.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+public class Core extends AbstractIdleService {
+
+ /** The logger. */
+ private static final Logger logger = Logger.getLogger(Core.class.getName());
+
+ /** The event bus. */
+ private final EventBus eventBus;
+
+ /** The channels that should be monitored. */
+ private final Collection<Channel> channels = 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();
+
+ /**
+ * Creates a new core.
+ *
+ * @param eventBus
+ * The event bus
+ */
+ @Inject
+ public Core(EventBus eventBus) {
+ this.eventBus = eventBus;
+ }
+
+ //
+ // ACTIONS
+ //
+
+ /**
+ * Adds a channel to monitor.
+ *
+ * @param channel
+ * The channel to monitor
+ */
+ public void addChannel(Channel channel) {
+ channels.add(channel);
+ }
+
+ //
+ // ABSTRACTIDLESERVICE METHODS
+ //
+
+ @Override
+ 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();
+ }
+ }
+ }
+
+ @Override
+ protected void shutDown() {
+ }
+
+ //
+ // EVENT HANDLERS
+ //
+
+ /**
+ * If a connection to a network has been established, the channels associated
+ * with this network are joined.
+ *
+ * @param connectionEstablished
+ * The connection established event
+ */
+ @Subscribe
+ public void connectionEstablished(ConnectionEstablished connectionEstablished) {
+
+ /* get network for connection. */
+ Optional<Network> network = getNetwork(connectionEstablished.connection());
+
+ /* found network? */
+ if (!network.isPresent()) {
+ return;
+ }
+
+ /* join all channels on this network. */
+ for (Channel channel : channels) {
+ if (channel.network().equals(network)) {
+ try {
+ connectionEstablished.connection().joinChannel(channel.name());
+ } catch (IOException ioe1) {
+ logger.log(Level.WARNING, String.format("Could not join %s on %s!", channel.name(), network.get().name()), ioe1);
+ }
+ }
+ }
+ }
+
+ /**
+ * If a message on a channel is received, it is parsed for pack information
+ * with is then added to a bot.
+ *
+ * @param channelMessageReceived
+ * The channel message received event
+ */
+ @Subscribe
+ public void channelMessageReceived(ChannelMessageReceived channelMessageReceived) {
+ String message = MessageCleaner.getDefaultInstance().clean(channelMessageReceived.message());
+ if (!message.startsWith("#")) {
+ /* most probably not a pack announcement. */
+ return;
+ }
+
+ Optional<Network> network = getNetwork(channelMessageReceived.connection());
+ if (!network.isPresent()) {
+ /* message for unknown connection? */
+ 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;
+ }
+
+ /* add pack. */
+ bot.addPack(pack.get());
+ logger.fine(String.format("Bot %s now has %d packs.", bot, bot.packs().size()));
+ }
+
+ //
+ // PRIVATE METHODS
+ //
+
+ /**
+ * Searches all current connections for the given connection, returning the
+ * associated network.
+ *
+ * @param connection
+ * The connection to get the network for
+ * @return The network belonging to the connection, or {@link
+ * Optional#absent()}
+ */
+ private Optional<Network> getNetwork(Connection connection) {
+ for (Entry<Network, Connection> networkConnectionEntry : networkConnections.entrySet()) {
+ if (networkConnectionEntry.getValue().equals(connection)) {
+ return Optional.of(networkConnectionEntry.getKey());
+ }
+ }
+ return Optional.absent();
+ }
+
+ /**
+ * Parses {@link Pack} information from the given message.
+ *
+ * @param message
+ * The message to parse pack information from
+ * @return The parsed pack, or {@link Optional#absent()} if the message could
+ * not be parsed into a pack
+ */
+ private Optional<Pack> parsePack(String message) {
+ int squareOpen = message.indexOf('[');
+ int squareClose = message.indexOf(']', squareOpen);
+ if ((squareOpen == -1) && (squareClose == -1)) {
+ return Optional.absent();
+ }
+ String packSize = message.substring(squareOpen + 1, squareClose);
+ String packName = message.substring(message.lastIndexOf(' ') + 1);
+ String packIndex = message.substring(0, message.indexOf(' ')).substring(1);
+ return Optional.of(new Pack(packIndex, packSize, packName));
+ }
+
+}
projects / xudocci.git / commitdiff