Added logPlayerConnections configuration option (#673)

proxy/src/main/java/com/velocitypowered/proxy/config/VelocityConfiguration.java

@@ -378,6 +378,10 @@ public class VelocityConfiguration implements ProxyConfig {
     return advanced.isLogCommandExecutions();
   }
 
+  public boolean isLogPlayerConnections() {
+    return advanced.isLogPlayerConnections();
+  }
+
   @Override
   public String toString() {
     return MoreObjects.toStringHelper(this)
@@ -640,6 +644,7 @@ public class VelocityConfiguration implements ProxyConfig {
     @Expose private boolean failoverOnUnexpectedServerDisconnect = true;
     @Expose private boolean announceProxyCommands = true;
     @Expose private boolean logCommandExecutions = false;
+    @Expose private boolean logPlayerConnections = true;
 
     private Advanced() {
     }
@@ -663,6 +668,7 @@ public class VelocityConfiguration implements ProxyConfig {
             .getOrElse("failover-on-unexpected-server-disconnect", true);
         this.announceProxyCommands = config.getOrElse("announce-proxy-commands", true);
         this.logCommandExecutions = config.getOrElse("log-command-executions", false);
+        this.logPlayerConnections = config.getOrElse("log-player-connections", true);
       }
     }
 
@@ -714,6 +720,10 @@ public class VelocityConfiguration implements ProxyConfig {
       return logCommandExecutions;
     }
 
+    public boolean isLogPlayerConnections() {
+      return logPlayerConnections;
+    }
+
     @Override
     public String toString() {
       return "Advanced{"
@@ -729,6 +739,7 @@ public class VelocityConfiguration implements ProxyConfig {
           + ", failoverOnUnexpectedServerDisconnect=" + failoverOnUnexpectedServerDisconnect
           + ", announceProxyCommands=" + announceProxyCommands
           + ", logCommandExecutions=" + logCommandExecutions
+          + ", logPlayerConnections=" + logPlayerConnections
           + '}';
     }
   }

proxy/src/main/java/com/velocitypowered/proxy/connection/MinecraftConnection.java

@@ -82,7 +82,7 @@ public class MinecraftConnection extends ChannelInboundHandlerAdapter {
   private @Nullable MinecraftSessionHandler sessionHandler;
   private ProtocolVersion protocolVersion;
   private @Nullable MinecraftConnectionAssociation association;
-  private final VelocityServer server;
+  public final VelocityServer server;
   private ConnectionType connectionType = ConnectionTypes.UNDETERMINED;
   private boolean knownDisconnect = false;
 
@@ -104,7 +104,7 @@ public class MinecraftConnection extends ChannelInboundHandlerAdapter {
       sessionHandler.connected();
     }
 
-    if (association != null) {
+    if (association != null && server.getConfiguration().isLogPlayerConnections()) {
       logger.info("{} has connected", association);
     }
   }
@@ -116,7 +116,8 @@ public class MinecraftConnection extends ChannelInboundHandlerAdapter {
     }
 
     if (association != null && !knownDisconnect
-        && !(sessionHandler instanceof StatusSessionHandler)) {
+        && !(sessionHandler instanceof StatusSessionHandler)
+        && server.getConfiguration().isLogPlayerConnections()) {
       logger.info("{} has disconnected", association);
     }
   }

proxy/src/main/java/com/velocitypowered/proxy/connection/client/ConnectedPlayer.java

@@ -520,8 +520,10 @@ public class ConnectedPlayer implements MinecraftConnectionAssociation, Player {
   public void disconnect0(Component reason, boolean duringLogin) {
     Component translated = this.translateMessage(reason);
 
+    if (server.getConfiguration().isLogPlayerConnections()) {
       logger.info("{} has disconnected: {}", this,
           LegacyComponentSerializer.legacySection().serialize(translated));
+    }
     connection.closeWith(Disconnect.create(translated, this.getProtocolVersion()));
   }
 

proxy/src/main/java/com/velocitypowered/proxy/connection/client/InitialInboundConnection.java

@@ -85,9 +85,10 @@ public final class InitialInboundConnection implements InboundConnection,
   public void disconnect(Component reason) {
     Component translated = GlobalTranslator.render(reason, ClosestLocaleMatcher.INSTANCE
         .lookupClosest(Locale.getDefault()));
-
+    if (connection.server.getConfiguration().isLogPlayerConnections()) {
       logger.info("{} has disconnected: {}", this,
           LegacyComponentSerializer.legacySection().serialize(translated));
+    }
     connection.closeWith(Disconnect.create(translated, getProtocolVersion()));
   }
 

proxy/src/main/resources/default-velocity.toml

@@ -133,6 +133,10 @@ announce-proxy-commands = true
 # Enables the logging of commands
 log-command-executions = false
 
+# Enables logging of player connections when connecting to the proxy, switching servers
+# and disconnecting from the proxy.
+log-player-connections = true
+
 [query]
 # Whether to enable responding to GameSpy 4 query responses or not.
 enabled = false