mirror of
https://github.com/proxiodev/RedisBungee.git
synced 2025-04-19 09:07:06 +00:00
233 lines
9.4 KiB
Java
233 lines
9.4 KiB
Java
package com.imaginarycode.minecraft.redisbungee;
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import com.google.common.cache.Cache;
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import com.google.common.cache.CacheBuilder;
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import com.google.common.net.InetAddresses;
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import com.google.common.util.concurrent.UncheckedExecutionException;
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import com.google.gson.JsonObject;
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import com.google.gson.JsonParser;
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import com.google.gson.reflect.TypeToken;
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import com.imaginarycode.minecraft.redisbungee.events.PlayerChangedServerNetworkEvent;
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import com.imaginarycode.minecraft.redisbungee.events.PlayerJoinedNetworkEvent;
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import com.imaginarycode.minecraft.redisbungee.events.PlayerLeftNetworkEvent;
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import com.imaginarycode.minecraft.redisbungee.events.PubSubMessageEvent;
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import lombok.Getter;
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import lombok.RequiredArgsConstructor;
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import net.md_5.bungee.api.connection.ProxiedPlayer;
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import net.md_5.bungee.api.event.PlayerDisconnectEvent;
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import net.md_5.bungee.api.event.PostLoginEvent;
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import net.md_5.bungee.api.plugin.Listener;
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import net.md_5.bungee.event.EventHandler;
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import redis.clients.jedis.Jedis;
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import java.net.InetAddress;
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import java.util.Objects;
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import java.util.UUID;
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import java.util.concurrent.Callable;
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import java.util.concurrent.ExecutionException;
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import java.util.concurrent.TimeUnit;
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import java.util.logging.Level;
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/**
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* This class manages all the data that RedisBungee fetches from Redis, along with updates to that data.
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*
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* @since 0.3.3
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*/
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@SuppressWarnings({"u", "deprecation"})
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public class DataManager implements Listener {
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private final RedisBungee plugin;
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private final Cache<UUID, String> serverCache = createCache();
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private final Cache<UUID, String> proxyCache = createCache();
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private final Cache<UUID, InetAddress> ipCache = createCache();
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private final Cache<UUID, Long> lastOnlineCache = createCache();
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public DataManager(RedisBungee plugin) {
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this.plugin = plugin;
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}
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private static <K, V> Cache<K, V> createCache() {
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// TODO: Allow customization via cache specification, ala ServerListPlus
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return CacheBuilder.newBuilder()
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.maximumSize(1000)
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.expireAfterWrite(1, TimeUnit.HOURS)
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.build();
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}
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private final JsonParser parser = new JsonParser();
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public String getServer(final UUID uuid) {
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ProxiedPlayer player = plugin.getProxy().getPlayer(uuid);
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if (player != null)
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return player.getServer() != null ? player.getServer().getInfo().getName() : null;
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try {
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return serverCache.get(uuid, () -> {
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try (Jedis tmpRsc = plugin.getPool().getResource()) {
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return Objects.requireNonNull(tmpRsc.hget("player:" + uuid, "server"), "user not found");
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}
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});
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} catch (ExecutionException | UncheckedExecutionException e) {
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if (e.getCause() instanceof NullPointerException && e.getCause().getMessage().equals("user not found"))
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return null; // HACK
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plugin.getLogger().log(Level.SEVERE, "Unable to get server", e);
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throw new RuntimeException("Unable to get server for " + uuid, e);
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}
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}
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public String getProxy(final UUID uuid) {
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ProxiedPlayer player = plugin.getProxy().getPlayer(uuid);
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if (player != null)
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return plugin.getConfiguration().getServerId();
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try {
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return proxyCache.get(uuid, () -> {
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try (Jedis tmpRsc = plugin.getPool().getResource()) {
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return Objects.requireNonNull(tmpRsc.hget("player:" + uuid, "proxy"), "user not found");
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}
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});
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} catch (ExecutionException | UncheckedExecutionException e) {
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if (e.getCause() instanceof NullPointerException && e.getCause().getMessage().equals("user not found"))
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return null; // HACK
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plugin.getLogger().log(Level.SEVERE, "Unable to get proxy", e);
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throw new RuntimeException("Unable to get proxy for " + uuid, e);
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}
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}
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public InetAddress getIp(final UUID uuid) {
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ProxiedPlayer player = plugin.getProxy().getPlayer(uuid);
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if (player != null)
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return player.getAddress().getAddress();
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try {
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return ipCache.get(uuid, () -> {
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try (Jedis tmpRsc = plugin.getPool().getResource()) {
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String result = tmpRsc.hget("player:" + uuid, "ip");
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if (result == null)
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throw new NullPointerException("user not found");
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return InetAddresses.forString(result);
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}
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});
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} catch (ExecutionException | UncheckedExecutionException e) {
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if (e.getCause() instanceof NullPointerException && e.getCause().getMessage().equals("user not found"))
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return null; // HACK
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plugin.getLogger().log(Level.SEVERE, "Unable to get IP", e);
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throw new RuntimeException("Unable to get IP for " + uuid, e);
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}
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}
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public long getLastOnline(final UUID uuid) {
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ProxiedPlayer player = plugin.getProxy().getPlayer(uuid);
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if (player != null)
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return 0;
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try {
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return lastOnlineCache.get(uuid, () -> {
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try (Jedis tmpRsc = plugin.getPool().getResource()) {
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String result = tmpRsc.hget("player:" + uuid, "online");
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return result == null ? -1 : Long.parseLong(result);
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}
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});
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} catch (ExecutionException e) {
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plugin.getLogger().log(Level.SEVERE, "Unable to get last time online", e);
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throw new RuntimeException("Unable to get last time online for " + uuid, e);
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}
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}
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private void invalidate(UUID uuid) {
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ipCache.invalidate(uuid);
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lastOnlineCache.invalidate(uuid);
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serverCache.invalidate(uuid);
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proxyCache.invalidate(uuid);
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}
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@EventHandler
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public void onPostLogin(PostLoginEvent event) {
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// Invalidate all entries related to this player, since they now lie.
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invalidate(event.getPlayer().getUniqueId());
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}
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@EventHandler
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public void onPlayerDisconnect(PlayerDisconnectEvent event) {
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// Invalidate all entries related to this player, since they now lie.
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invalidate(event.getPlayer().getUniqueId());
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}
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@EventHandler
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public void onPubSubMessage(PubSubMessageEvent event) {
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if (!event.getChannel().equals("redisbungee-data"))
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return;
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// Partially deserialize the message so we can look at the action
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JsonObject jsonObject = parser.parse(event.getMessage()).getAsJsonObject();
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String source = jsonObject.get("source").getAsString();
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if (source.equals(plugin.getRedisBungeeAPI().getServerId()))
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return;
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DataManagerMessage.Action action = DataManagerMessage.Action.valueOf(jsonObject.get("action").getAsString());
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switch (action) {
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case JOIN:
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final DataManagerMessage<LoginPayload> message1 = RedisBungee.getGson().fromJson(jsonObject, new TypeToken<DataManagerMessage<LoginPayload>>() {
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}.getType());
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proxyCache.put(message1.getTarget(), message1.getSource());
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lastOnlineCache.put(message1.getTarget(), (long) 0);
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ipCache.put(message1.getTarget(), message1.getPayload().getAddress());
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plugin.getProxy().getScheduler().runAsync(plugin, () -> plugin.getProxy().getPluginManager().callEvent(new PlayerJoinedNetworkEvent(message1.getTarget())));
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break;
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case LEAVE:
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final DataManagerMessage<LogoutPayload> message2 = RedisBungee.getGson().fromJson(jsonObject, new TypeToken<DataManagerMessage<LogoutPayload>>() {
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}.getType());
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invalidate(message2.getTarget());
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lastOnlineCache.put(message2.getTarget(), message2.getPayload().getTimestamp());
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plugin.getProxy().getScheduler().runAsync(plugin, () -> plugin.getProxy().getPluginManager().callEvent(new PlayerLeftNetworkEvent(message2.getTarget())));
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break;
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case SERVER_CHANGE:
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final DataManagerMessage<ServerChangePayload> message3 = RedisBungee.getGson().fromJson(jsonObject, new TypeToken<DataManagerMessage<ServerChangePayload>>() {
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}.getType());
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serverCache.put(message3.getTarget(), message3.getPayload().getServer());
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plugin.getProxy().getScheduler().runAsync(plugin, () -> plugin.getProxy().getPluginManager().callEvent(new PlayerChangedServerNetworkEvent(message3.getTarget(), message3.getPayload().getOldServer(), message3.getPayload().getServer())));
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break;
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}
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}
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@Getter
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@RequiredArgsConstructor
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static class DataManagerMessage<T> {
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private final UUID target;
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private final String source = RedisBungee.getApi().getServerId();
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private final Action action; // for future use!
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private final T payload;
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enum Action {
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JOIN,
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LEAVE,
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SERVER_CHANGE
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}
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}
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@Getter
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@RequiredArgsConstructor
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static class LoginPayload {
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private final InetAddress address;
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}
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@Getter
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@RequiredArgsConstructor
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static class ServerChangePayload {
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private final String server;
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private final String oldServer;
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}
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@Getter
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@RequiredArgsConstructor
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static class LogoutPayload {
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private final long timestamp;
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}
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}
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