Waterfall/BungeeCord-Patches/0014-Allow-removing-servers-or-changing-addresses-on-relo.patch
Shane Freeder ae319ce090 Reuse existing ServerInfo object when reloading config
Prior to this command, greload would replace the ServerInfo stored in
bungee, this leads to the /glist counters being out of sync, but also
potentially highlights futher complications in replacing live server
objects, in that code doesn't generally expect/account for it to occur.

This behavior is not as ideal as being able to use the new server info,
which will have updated settings such as the motd, however, this change
offers better expected behavior.

We may wish to revisit this in the future, e.g. system property to force
using the new objects at the risk of breaking the player count on
reload?
2019-03-26 04:03:01 +00:00

84 lines
4.5 KiB
Diff

From 0bab27125230a455e4ca9f5664ac7ce02f15feb6 Mon Sep 17 00:00:00 2001
From: Techcable <Techcable@outlook.com>
Date: Thu, 28 Jan 2016 15:13:29 -0700
Subject: [PATCH] Allow removing servers or changing addresses on reload
Moves all players on the removed server to the default server.
Address changes also move the players to the default server.
Kicks players on failure to move.
Original Issue: https://github.com/WaterfallMC/Waterfall-Old/issues/17
diff --git a/proxy/src/main/java/net/md_5/bungee/conf/Configuration.java b/proxy/src/main/java/net/md_5/bungee/conf/Configuration.java
index 886f3b4c..193d8bce 100644
--- a/proxy/src/main/java/net/md_5/bungee/conf/Configuration.java
+++ b/proxy/src/main/java/net/md_5/bungee/conf/Configuration.java
@@ -11,12 +11,15 @@ import java.util.UUID;
import java.util.logging.Level;
import javax.imageio.ImageIO;
import lombok.Getter;
+
+import net.md_5.bungee.BungeeCord;
import net.md_5.bungee.api.Favicon;
import net.md_5.bungee.api.ProxyConfig;
import net.md_5.bungee.api.ProxyServer;
import net.md_5.bungee.api.config.ConfigurationAdapter;
import net.md_5.bungee.api.config.ListenerInfo;
import net.md_5.bungee.api.config.ServerInfo;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
import net.md_5.bungee.util.CaseInsensitiveMap;
import net.md_5.bungee.util.CaseInsensitiveSet;
@@ -105,20 +108,38 @@ public abstract class Configuration implements ProxyConfig
servers = new CaseInsensitiveMap<>( newServers );
} else
{
- for ( ServerInfo oldServer : servers.values() )
- {
- // Don't allow servers to be removed
- Preconditions.checkArgument( newServers.containsKey( oldServer.getName() ), "Server %s removed on reload!", oldServer.getName() );
- }
+ Map<String, ServerInfo> oldServers = this.servers;
- // Add new servers
- for ( Map.Entry<String, ServerInfo> newServer : newServers.entrySet() )
+ for ( ServerInfo oldServer : oldServers.values() )
{
- if ( !servers.containsValue( newServer.getValue() ) )
- {
- servers.put( newServer.getKey(), newServer.getValue() );
+ ServerInfo newServer = newServers.get(oldServer.getName());
+ if ((newServer == null || !oldServer.getAddress().equals(newServer.getAddress())) && !oldServer.getPlayers().isEmpty()) {
+ BungeeCord.getInstance().getLogger().info("Moving players off of server: " + oldServer.getName());
+ // The server is being removed, or having it's address changed
+ for (ProxiedPlayer player : oldServer.getPlayers()) {
+ ListenerInfo listener = player.getPendingConnection().getListener();
+ String destinationName = newServers.get(listener.getDefaultServer()) == null ? listener.getDefaultServer() : listener.getFallbackServer();
+ ServerInfo destination = newServers.get(destinationName);
+ if (destination == null) {
+ BungeeCord.getInstance().getLogger().severe("Couldn't find server " + listener.getDefaultServer() + " or " + listener.getFallbackServer() + " to put player " + player.getName() + " on");
+ player.disconnect(BungeeCord.getInstance().getTranslation("fallback_kick", "Not found on reload"));
+ continue;
+ }
+ player.connect(destination, (success, cause) -> {
+ if (!success) {
+ BungeeCord.getInstance().getLogger().log(Level.WARNING, "Failed to connect " + player.getName() + " to " + destination.getName(), cause);
+ player.disconnect(BungeeCord.getInstance().getTranslation("fallback_kick", cause.getCause().getClass().getName()));
+ }
+ });
+ }
+ } else {
+ // This server isn't new or removed, we'll use bungees behavior of just ignoring
+ // any changes to info outside of the address, this is not ideal, but the alternative
+ // requires resetting multiple objects of which have no proper identity
+ newServers.put(oldServer.getName(), oldServer);
}
}
+ this.servers = new CaseInsensitiveMap<>(newServers);
}
for ( ListenerInfo listener : listeners )
--
2.21.0