Add OSRS INIT_JS5REMOTE_CONNECTION codec

Signed-off-by: Graham <gpe@openrs2.org>

archive/src/main/kotlin/org/openrs2/archive/cache/OsrsJs5ChannelHandler.kt

@@ -3,7 +3,9 @@ package org.openrs2.archive.cache
 import io.netty.bootstrap.Bootstrap
 import io.netty.channel.ChannelHandlerContext
 import io.netty.channel.ChannelPipeline
+import org.openrs2.archive.cache.osrs.InitJs5RemoteConnection
 import org.openrs2.cache.MasterIndexFormat
+import org.openrs2.crypto.SymmetricKey
 import org.openrs2.protocol.Rs2Decoder
 import org.openrs2.protocol.Rs2Encoder
 import org.openrs2.protocol.js5.downstream.Js5LoginResponse
@@ -12,7 +14,6 @@ import org.openrs2.protocol.js5.downstream.Js5ResponseDecoder
 import org.openrs2.protocol.js5.downstream.XorDecoder
 import org.openrs2.protocol.js5.upstream.Js5Request
 import org.openrs2.protocol.js5.upstream.Js5RequestEncoder
-import org.openrs2.protocol.login.upstream.LoginRequest
 import kotlin.coroutines.Continuation
 
 public class OsrsJs5ChannelHandler(
@@ -40,7 +41,7 @@ public class OsrsJs5ChannelHandler(
     maxInFlightRequests = 200
 ) {
     override fun createInitMessage(): Any {
-        return LoginRequest.InitJs5RemoteConnection(buildMajor)
+        return InitJs5RemoteConnection(buildMajor, SymmetricKey.ZERO)
     }
 
     override fun createRequestMessage(prefetch: Boolean, archive: Int, group: Int): Any {

archive/src/main/kotlin/org/openrs2/archive/cache/OsrsJs5ChannelInitializer.kt

@@ -3,18 +3,18 @@ package org.openrs2.archive.cache
 import io.netty.channel.Channel
 import io.netty.channel.ChannelInitializer
 import io.netty.handler.timeout.ReadTimeoutHandler
+import org.openrs2.archive.cache.osrs.InitJs5RemoteConnectionCodec
 import org.openrs2.protocol.Protocol
 import org.openrs2.protocol.Rs2Decoder
 import org.openrs2.protocol.Rs2Encoder
 import org.openrs2.protocol.js5.downstream.Js5ClientOutOfDateCodec
 import org.openrs2.protocol.js5.downstream.Js5OkCodec
-import org.openrs2.protocol.login.upstream.InitJs5RemoteConnectionCodec
 
 public class OsrsJs5ChannelInitializer(private val handler: OsrsJs5ChannelHandler) : ChannelInitializer<Channel>() {
     override fun initChannel(ch: Channel) {
         ch.pipeline().addLast(
             ReadTimeoutHandler(30),
-            Rs2Encoder(Protocol(InitJs5RemoteConnectionCodec())),
+            Rs2Encoder(Protocol(InitJs5RemoteConnectionCodec)),
             Rs2Decoder(Protocol(Js5OkCodec(), Js5ClientOutOfDateCodec()))
         )
         ch.pipeline().addLast("handler", handler)

archive/src/main/kotlin/org/openrs2/archive/cache/osrs/InitJs5RemoteConnection.kt

@@ -0,0 +1,9 @@
+package org.openrs2.archive.cache.osrs
+
+import org.openrs2.crypto.SymmetricKey
+import org.openrs2.protocol.Packet
+
+public data class InitJs5RemoteConnection(
+    public val build: Int,
+    public val key: SymmetricKey,
+) : Packet

archive/src/main/kotlin/org/openrs2/archive/cache/osrs/InitJs5RemoteConnectionCodec.kt

@@ -0,0 +1,29 @@
+package org.openrs2.archive.cache.osrs
+
+import io.netty.buffer.ByteBuf
+import org.openrs2.crypto.StreamCipher
+import org.openrs2.crypto.SymmetricKey
+import org.openrs2.protocol.FixedPacketCodec
+
+public object InitJs5RemoteConnectionCodec : FixedPacketCodec<InitJs5RemoteConnection>(
+    type = InitJs5RemoteConnection::class.java,
+    opcode = 15,
+    length = 20
+) {
+    override fun decode(input: ByteBuf, cipher: StreamCipher): InitJs5RemoteConnection {
+        val build = input.readInt()
+        val k0 = input.readInt()
+        val k1 = input.readInt()
+        val k2 = input.readInt()
+        val k3 = input.readInt()
+        return InitJs5RemoteConnection(build, SymmetricKey(k0, k1, k2, k3))
+    }
+
+    override fun encode(input: InitJs5RemoteConnection, output: ByteBuf, cipher: StreamCipher) {
+        output.writeInt(input.build)
+        output.writeInt(input.key.k0)
+        output.writeInt(input.key.k1)
+        output.writeInt(input.key.k2)
+        output.writeInt(input.key.k3)
+    }
+}