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132fd5d2c6
Waterfall/BungeeCord-Patches/0027-Improve-ServerKickEvent.patch
Shane Freeder 8fb8b6cd2c
Updated Upstream (BungeeCord) 
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

BungeeCord Changes:
a64c34d2 #2875: Add the MessageRaw channel
1d40b8a8 #2866: Add support for contents in Hover Event
2020-07-01 10:39:43 +01:00

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From 816a1028af26164e49617c2d532fcc7998dcf537 Mon Sep 17 00:00:00 2001
From: Nathan Poirier <nathan@poirier.io>
Date: Tue, 28 Jun 2016 23:00:49 -0500
Subject: [PATCH] Improve ServerKickEvent
ServerKickEvent traditionally will only fire if the server sends a kick packet. During a server shutdown, or server crash this event would not fire for most players. While ServerDisconnectEvent is fired it does not tell us if it was a kick/shutdown/server crash. This improvement fires the ServerKickEvent for server caused disconnections, and adds a Cause to the kick event.
diff --git a/api/src/main/java/net/md_5/bungee/api/event/ServerKickEvent.java b/api/src/main/java/net/md_5/bungee/api/event/ServerKickEvent.java
index 0e1ef5c4..ee63732d 100644
--- a/api/src/main/java/net/md_5/bungee/api/event/ServerKickEvent.java
+++ b/api/src/main/java/net/md_5/bungee/api/event/ServerKickEvent.java
@@ -44,6 +44,12 @@ public class ServerKickEvent extends Event implements Cancellable
* State in which the kick occured.
*/
private State state;
+ // Waterfall start
+ /**
+ * Circumstances which led to the kick.
+ */
+ private Cause cause;
+ // Waterfall end
public enum State
{
@@ -51,6 +57,14 @@ public class ServerKickEvent extends Event implements Cancellable
CONNECTING, CONNECTED, UNKNOWN;
}
+ // Waterfall start
+ public enum Cause
+ {
+
+ SERVER, LOST_CONNECTION, EXCEPTION, UNKNOWN;
+ }
+ // Waterfall end
+
@Deprecated
public ServerKickEvent(ProxiedPlayer player, BaseComponent[] kickReasonComponent, ServerInfo cancelServer)
{
@@ -63,14 +77,23 @@ public class ServerKickEvent extends Event implements Cancellable
this( player, player.getServer().getInfo(), kickReasonComponent, cancelServer, state );
}
+ // Waterfall start
+ @Deprecated
public ServerKickEvent(ProxiedPlayer player, ServerInfo kickedFrom, BaseComponent[] kickReasonComponent, ServerInfo cancelServer, State state)
+ {
+ this( player, kickedFrom, kickReasonComponent, cancelServer, state, Cause.UNKNOWN );
+ }
+
+ public ServerKickEvent(ProxiedPlayer player, ServerInfo kickedFrom, BaseComponent[] kickReasonComponent, ServerInfo cancelServer, State state, Cause cause)
{
this.player = player;
this.kickedFrom = kickedFrom;
this.kickReasonComponent = kickReasonComponent;
this.cancelServer = cancelServer;
this.state = state;
+ this.cause = cause;
}
+ // Waterfall end
@Deprecated
public String getKickReason()
diff --git a/proxy/src/main/java/net/md_5/bungee/ServerConnector.java b/proxy/src/main/java/net/md_5/bungee/ServerConnector.java
index 97b7f236..6ec13579 100644
--- a/proxy/src/main/java/net/md_5/bungee/ServerConnector.java
+++ b/proxy/src/main/java/net/md_5/bungee/ServerConnector.java
@@ -365,7 +365,7 @@ public class ServerConnector extends PacketHandler
public void handle(Kick kick) throws Exception
{
ServerInfo def = user.updateAndGetNextServer( target );
- ServerKickEvent event = new ServerKickEvent( user, target, ComponentSerializer.parse( kick.getMessage() ), def, ServerKickEvent.State.CONNECTING );
+ ServerKickEvent event = new ServerKickEvent( user, target, ComponentSerializer.parse( kick.getMessage() ), def, ServerKickEvent.State.CONNECTING, ServerKickEvent.Cause.SERVER ); // Waterfall
if ( event.getKickReason().toLowerCase( Locale.ROOT ).contains( "outdated" ) && def != null )
{
// Pre cancel the event if we are going to try another server
diff --git a/proxy/src/main/java/net/md_5/bungee/connection/DownstreamBridge.java b/proxy/src/main/java/net/md_5/bungee/connection/DownstreamBridge.java
index d9a52c88..b83903df 100644
--- a/proxy/src/main/java/net/md_5/bungee/connection/DownstreamBridge.java
+++ b/proxy/src/main/java/net/md_5/bungee/connection/DownstreamBridge.java
@@ -12,6 +12,7 @@ import com.mojang.brigadier.context.StringRange;
import com.mojang.brigadier.suggestion.Suggestion;
import com.mojang.brigadier.suggestion.Suggestions;
import com.mojang.brigadier.tree.LiteralCommandNode;
+import java.util.Objects; // Waterfall
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufAllocator;
import io.netty.buffer.Unpooled;
@@ -79,16 +80,19 @@ public class DownstreamBridge extends PacketHandler
return;
}
+ // Waterfall start
ServerInfo def = con.updateAndGetNextServer( server.getInfo() );
- if ( def != null )
+ ServerKickEvent event = bungee.getPluginManager().callEvent( new ServerKickEvent( con, server.getInfo(), TextComponent.fromLegacyText( bungee.getTranslation( "server_went_down" ) ), def, ServerKickEvent.State.CONNECTED, ServerKickEvent.Cause.EXCEPTION ) );
+ if ( event.isCancelled() && event.getCancelServer() != null )
{
server.setObsolete( true );
- con.connectNow( def, ServerConnectEvent.Reason.SERVER_DOWN_REDIRECT );
- con.sendMessage( bungee.getTranslation( "server_went_down" ) );
- } else
+ con.connectNow( event.getCancelServer(), ServerConnectEvent.Reason.SERVER_DOWN_REDIRECT );
+ }
+ else
{
- con.disconnect( Util.exception( t ) );
+ con.disconnect0( event.getKickReasonComponent() );
}
+ // Waterfall end
}
@Override
@@ -103,7 +107,19 @@ public class DownstreamBridge extends PacketHandler
if ( !server.isObsolete() )
{
- con.disconnect( bungee.getTranslation( "lost_connection" ) );
+ // Waterfall start
+ ServerInfo def = con.updateAndGetNextServer( server.getInfo() );
+ ServerKickEvent event = bungee.getPluginManager().callEvent( new ServerKickEvent( con, server.getInfo(), TextComponent.fromLegacyText( bungee.getTranslation( "lost_connection" ) ), def, ServerKickEvent.State.CONNECTED, ServerKickEvent.Cause.LOST_CONNECTION ) );
+ if ( event.isCancelled() && event.getCancelServer() != null )
+ {
+ server.setObsolete( true );
+ con.connectNow( event.getCancelServer() );
+ }
+ else
+ {
+ con.disconnect0( event.getKickReasonComponent() );
+ }
+ // Waterfall end
}
ServerDisconnectEvent serverDisconnectEvent = new ServerDisconnectEvent( con, server.getInfo() );
@@ -514,7 +530,11 @@ public class DownstreamBridge extends PacketHandler
public void handle(Kick kick) throws Exception
{
ServerInfo def = con.updateAndGetNextServer( server.getInfo() );
- ServerKickEvent event = bungee.getPluginManager().callEvent( new ServerKickEvent( con, server.getInfo(), ComponentSerializer.parse( kick.getMessage() ), def, ServerKickEvent.State.CONNECTED ) );
+ if ( Objects.equals( server.getInfo(), def ) )
+ {
+ def = null;
+ }
+ ServerKickEvent event = bungee.getPluginManager().callEvent( new ServerKickEvent( con, server.getInfo(), ComponentSerializer.parse( kick.getMessage() ), def, ServerKickEvent.State.CONNECTED, ServerKickEvent.Cause.SERVER ) ); // Waterfall
if ( event.isCancelled() && event.getCancelServer() != null )
{
con.connectNow( event.getCancelServer(), ServerConnectEvent.Reason.KICK_REDIRECT );
--
2.27.0
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