feat: add getServerIp to SurfBukkitNmsCommonBridge for retrieving server IP address

- Introduced `getServerIp` method in `SurfBukkitNmsCommonBridge` and its implementation.
- Added `ServerConnectionListenerProxy` for accessing server connection listener channels via reflection.

Author: twisti-dev

.idea/modules.xml

@@ -7,6 +7,6 @@ org.jetbrains.dokka.experimental.gradle.pluginMode=V2Enabled
 javaVersion=21
 mcVersion=1.21.7
 group=dev.slne.surf
-version=1.21.7-2.29.4
+version=1.21.7-2.30.0
 relocationPrefix=dev.slne.surf.surfapi.libs
 snapshot=false

gradle.properties

@@ -1663,6 +1663,7 @@ public abstract interface class dev/slne/surf/surfapi/bukkit/api/nms/bridges/Sur
 	public abstract fun clearDialogs (Lorg/bukkit/entity/Player;Z)V
 	public static synthetic fun clearDialogs$default (Ldev/slne/surf/surfapi/bukkit/api/nms/bridges/SurfBukkitNmsCommonBridge;Lorg/bukkit/entity/Player;ZILjava/lang/Object;)V
 	public abstract fun generateNextInventoryId (Lorg/bukkit/entity/Player;)I
+	public abstract fun getServerIp ()Ljava/net/InetSocketAddress;
 	public abstract fun getStateId (Lorg/bukkit/Material;)I
 	public abstract fun getStateId (Lorg/bukkit/block/data/BlockData;)I
 	public abstract fun getVelocitySecret ()Ljava/lang/String;

surf-api-bukkit/surf-api-bukkit-api/api/surf-api-bukkit-api.api

@@ -5,6 +5,7 @@ import dev.slne.surf.surfapi.core.api.util.requiredService
 import org.bukkit.Material
 import org.bukkit.block.data.BlockData
 import org.bukkit.entity.Player
+import java.net.InetSocketAddress
 
 @NmsUseWithCaution
 interface SurfBukkitNmsCommonBridge {
@@ -28,6 +29,8 @@ interface SurfBukkitNmsCommonBridge {
 
     fun clearDialogs(player: Player, showEmptyDialogBefore: Boolean = false)
 
+    fun getServerIp(): InetSocketAddress
+
     companion object {
         val instance = requiredService<SurfBukkitNmsCommonBridge>()
         val nextEntityId get() = instance.nextEntityId()

surf-api-bukkit/surf-api-bukkit-api/src/main/kotlin/dev/slne/surf/surfapi/bukkit/api/nms/bridges/SurfBukkitNmsCommonBridge.kt

@@ -7,6 +7,7 @@ import dev.slne.surf.surfapi.bukkit.api.nms.bridges.SurfBukkitNmsCommonBridge
 import dev.slne.surf.surfapi.bukkit.server.nms.toNms
 import dev.slne.surf.surfapi.bukkit.server.nms.toNmsBlock
 import dev.slne.surf.surfapi.bukkit.server.nms.toNmsItem
+import dev.slne.surf.surfapi.bukkit.server.reflection.Reflection
 import dev.slne.surf.surfapi.core.api.util.checkInstantiationByServiceLoader
 import io.papermc.paper.configuration.GlobalConfiguration
 import net.kyori.adventure.text.Component
@@ -19,6 +20,7 @@ import org.bukkit.Bukkit
 import org.bukkit.Material
 import org.bukkit.block.data.BlockData
 import org.bukkit.entity.Player
+import java.net.InetSocketAddress
 
 @AutoService(SurfBukkitNmsCommonBridge::class)
 @NmsUseWithCaution
@@ -83,4 +85,14 @@ class SurfBukkitNmsCommonBridgeImpl : SurfBukkitNmsCommonBridge {
 
         player.toNms().connection.send(ClientboundClearDialogPacket.INSTANCE)
     }
+
+    override fun getServerIp(): InetSocketAddress {
+        val channels =
+            Reflection.SERVER_CONNECTION_LISTENER_PROXY.getChannels(MinecraftServer.getServer().connection)
+        val channel =
+            channels.firstOrNull() ?: error("No channels found in server connection listener proxy")
+
+        return channel.channel().remoteAddress() as? InetSocketAddress
+            ?: error("Remote address is not an instance of InetSocketAddress")
+    }
 }

surf-api-bukkit/surf-api-bukkit-server/src/main/kotlin/dev/slne/surf/surfapi/bukkit/server/impl/nms/bridges/SurfBukkitNmsCommonBridgeImpl.kt

@@ -10,6 +10,7 @@ object Reflection {
     val SERVER_STATS_COUNTER_PROXY: ServerStatsCounterProxy
     val ITEM_PROXY: ItemProxy
     val ENTITY_PROXY: EntityProxy
+    val SERVER_CONNECTION_LISTENER_PROXY: ServerConnectionListenerProxy
 
     init {
         val remapper = ReflectionRemapper.forReobfMappingsInPaperJar()
@@ -19,6 +20,7 @@ object Reflection {
         SERVER_STATS_COUNTER_PROXY = proxyFactory.reflectionProxy<ServerStatsCounterProxy>()
         ITEM_PROXY = surfReflection.createProxy<ItemProxy>()
         ENTITY_PROXY = proxyFactory.reflectionProxy<EntityProxy>()
+        SERVER_CONNECTION_LISTENER_PROXY = proxyFactory.reflectionProxy<ServerConnectionListenerProxy>()
 
         // gc the remapper
         System.gc()

surf-api-bukkit/surf-api-bukkit-server/src/main/kotlin/dev/slne/surf/surfapi/bukkit/server/reflection/Reflection.kt

@@ -0,0 +1,12 @@
+package dev.slne.surf.surfapi.bukkit.server.reflection
+
+import io.netty.channel.ChannelFuture
+import net.minecraft.server.network.ServerConnectionListener
+import xyz.jpenilla.reflectionremapper.proxy.annotation.FieldGetter
+import xyz.jpenilla.reflectionremapper.proxy.annotation.Proxies
+
+@Proxies(ServerConnectionListener::class)
+interface ServerConnectionListenerProxy {
+    @FieldGetter("channels")
+    fun getChannels(instance: ServerConnectionListener): List<ChannelFuture>
+}