Migrate to data class

mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/protocol/tim/TIMBotNetworkHandler.kt

@@ -357,31 +357,31 @@ internal class TIMBotNetworkHandler internal constructor(override inline val bot
 
         suspend fun onPacketReceived(packet: Any) {//complex function, but it doesn't matter
             when (packet) {
-                is TouchPacket.TouchResponse -> {
-                    if (packet.serverIP != null) {//redirection
-                        withContext(userContext) {
-                            socket.close()
-                            socket = BotSocketAdapter(packet.serverIP!!, socket.configuration)
-                            bot.logger.info("Redirecting to ${packet.serverIP}")
-                            loginResult.complete(socket.resendTouch())
-                        }
-                    } else {//password submission
-                        this.loginIP = packet.loginIP
-                        this.loginTime = packet.loginTime
-                        this.token0825 = packet.token0825
+                is TouchPacket.TouchResponse.OK -> {
+                    loginIP = packet.loginIP
+                    loginTime = packet.loginTime
+                    token0825 = packet.token0825
 
-                        socket.sendPacket(
-                            SubmitPasswordPacket(
-                                bot = bot.qqAccount,
-                                password = bot.account.password,
-                                loginTime = loginTime,
-                                loginIP = loginIP,
-                                privateKey = privateKey,
-                                token0825 = token0825,
-                                token00BA = null,
-                                randomDeviceName = socket.configuration.randomDeviceName
-                            )
+                    socket.sendPacket(
+                        SubmitPasswordPacket(
+                            bot = bot.qqAccount,
+                            password = bot.account.password,
+                            loginTime = loginTime,
+                            loginIP = loginIP,
+                            privateKey = privateKey,
+                            token0825 = token0825,
+                            token00BA = null,
+                            randomDeviceName = socket.configuration.randomDeviceName
                         )
+                    )
+                }
+
+                is TouchPacket.TouchResponse.Redirection -> {
+                    withContext(userContext) {
+                        socket.close()
+                        socket = BotSocketAdapter(packet.serverIP!!, socket.configuration)
+                        bot.logger.info("Redirecting to ${packet.serverIP}")
+                        loginResult.complete(socket.resendTouch())
                     }
                 }
 

mirai-core/src/commonMain/kotlin/net.mamoe.mirai/network/protocol/tim/packet/login/Touch.kt

@@ -44,31 +44,50 @@ object TouchPacket : PacketFactory<TouchPacket.TouchResponse, TouchKey>(TouchKey
         }
     }
 
-    class TouchResponse : Packet {
-        var serverIP: String? = null
-            internal set
-        var loginTime: Int = 0
-            internal set
+    sealed class TouchResponse : Packet {
+        data class OK(
+            var loginTime: Int,
+            val loginIP: String,
+            val token0825: ByteArray
+        ) : TouchResponse() {
+            override fun equals(other: Any?): Boolean {
+                if (this === other) return true
+                if (other !is OK) return false
 
-        lateinit var loginIP: String
-            internal set
-        lateinit var token0825: ByteArray
-            internal set
+                if (loginTime != other.loginTime) return false
+                if (loginIP != other.loginIP) return false
+                if (!token0825.contentEquals(other.token0825)) return false
+
+                return true
+            }
+
+            override fun hashCode(): Int {
+                var result = loginTime
+                result = 31 * result + loginIP.hashCode()
+                result = 31 * result + token0825.contentHashCode()
+                return result
+            }
+        }
+
+        data class Redirection(
+            val serverIP: String? = null
+        ) : TouchResponse()
     }
 
-    override suspend fun ByteReadPacket.decode(id: PacketId, sequenceId: UShort, handler: BotNetworkHandler<*>): TouchResponse = TouchResponse().apply {
+    override suspend fun ByteReadPacket.decode(id: PacketId, sequenceId: UShort, handler: BotNetworkHandler<*>): TouchResponse {
         when (val flag = readByte().toUByte().toInt()) {
             0xFE -> {
                 discardExact(94)
-                serverIP = readIP()
+                return TouchResponse.Redirection(readIP())
             }
             0x00 -> {
                 discardExact(4)
-                token0825 = readBytes(56)
+                val token0825 = readBytes(56)
                 discardExact(6)
 
-                loginTime = readInt()
-                loginIP = readIP()
+                val loginTime = readInt()
+                val loginIP = readIP()
+                return TouchResponse.OK(loginTime, loginIP, token0825)
             }
 
             else -> throw IllegalStateException(flag.toByte().toUHexString())