Message receiver is working!

mirai-core/src/main/java/net/mamoe/mirai/network/RobotNetworkHandler.kt

@@ -229,6 +229,7 @@ class RobotNetworkHandler(val robot: Robot, val number: Int, private val passwor
 
 
             is ServerFriendMessageEventPacket -> {
+                println(packet.toString())
                 //friend message
             }
 

mirai-core/src/main/java/net/mamoe/mirai/network/packet/ClientPacket.kt

@@ -201,9 +201,9 @@ fun Int.toLByteArray(): ByteArray = byteArrayOf(
 @ExperimentalUnsignedTypes
 fun Int.toHexString(separator: String = " "): String = this.toByteArray().toUByteArray().toUHexString(separator);
 
-private fun md5(str: String): ByteArray = MessageDigest.getInstance("MD5").digest(str.toByteArray())
+internal fun md5(str: String): ByteArray = MessageDigest.getInstance("MD5").digest(str.toByteArray())
 
-private fun md5(byteArray: ByteArray): ByteArray = MessageDigest.getInstance("MD5").digest(byteArray)
+internal fun md5(byteArray: ByteArray): ByteArray = MessageDigest.getInstance("MD5").digest(byteArray)
 
 @ExperimentalUnsignedTypes
 @Throws(IOException::class)

mirai-core/src/main/java/net/mamoe/mirai/network/packet/MessageEvent.kt

@@ -11,7 +11,7 @@ import java.io.DataInputStream
  */
 @PacketId("")//随后写入
 @ExperimentalUnsignedTypes
-open class ClientMessageResponsePacket(
+class ClientMessageResponsePacket(
         private val qq: Int,
         private val packetIdFromServer: ByteArray,
         private val sessionKey: ByteArray,

mirai-core/src/main/java/net/mamoe/mirai/network/packet/ServerEvent.kt

@@ -1,6 +1,6 @@
 package net.mamoe.mirai.network.packet
 
-import net.mamoe.mirai.utils.MiraiLogger
+import net.mamoe.mirai.util.toUHexString
 import java.io.ByteArrayOutputStream
 import java.io.DataInputStream
 import java.util.zip.GZIPInputStream
@@ -136,9 +136,6 @@ class ServerGroupMessageEventPacket(input: DataInputStream, packetId: ByteArray,
                 }*/
             }
         }
-
-
-        MiraiLogger info this.toString()
     }
 }
 

mirai-core/src/main/java/net/mamoe/mirai/network/packet/message/ClientSendFriendMessagePacket.kt

@@ -0,0 +1,54 @@
+package net.mamoe.mirai.network.packet.message
+
+import net.mamoe.mirai.network.Protocol
+import net.mamoe.mirai.network.packet.*
+import net.mamoe.mirai.util.lazyEncode
+
+/**
+ * @author Him188moe
+ */
+@PacketId("00 CD")
+@ExperimentalUnsignedTypes
+class ClientSendFriendMessagePacket(
+        val qq: Int,
+        val sessionKey: ByteArray,
+        val message: String
+) : ClientPacket() {
+    override fun encode() {
+        this.writeRandom(2)//part of packet id
+        this.writeQQ(qq)
+        this.writeHex(Protocol._fixVer)
+
+        this.encryptAndWrite(sessionKey) {
+            it.writeQQ(qq)
+            it.writeQQ(qq)//that's correct
+            it.writeHex("00 00 00 08 00 01 00 04 00 00 00 00")
+            it.writeHex("37 0F")
+            it.writeQQ(qq)
+            it.write(md5(lazyEncode { md5Key -> md5Key.writeQQ(qq); md5Key.write(sessionKey) }))
+            it.writeHex("00 0B")
+            it.writeRandom(2)
+            it.writeInt(System.currentTimeMillis().toInt())
+            it.writeHex("00 00 00 00 00 00 01 00 00 00 01 4D 53 47 00 00 00 00 00")
+            it.writeInt(System.currentTimeMillis().toInt())
+            it.writeRandom(4)
+            it.writeHex("00 00 00 00 09 00 86 00 00 0C E5 BE AE E8 BD AF E9 9B 85 E9 BB 91")
+            it.writeZero(2)
+
+            if ("[face" in message
+                    || ".gif]" in message
+                    || ".jpg]" in message
+                    || ".png]" in message
+            ) {
+                TODO("复合消息构建")
+            } else {
+                //Plain text
+                this.writeByte(0x01)
+                this.writeInt(message.length + 3)
+                this.writeByte(0x01)
+                this.writeInt(message.length)
+                this.write(message.toByteArray())
+            }
+        }
+    }
+}

mirai-core/src/main/java/net/mamoe/mirai/network/packet/message/ClientSendGroupMessagePacket.kt

@@ -1,17 +1,26 @@
 package net.mamoe.mirai.network.packet.message
 
 import net.mamoe.mirai.network.packet.ClientPacket
+import net.mamoe.mirai.network.packet.PacketId
+import net.mamoe.mirai.network.packet.encryptAndWrite
 
 /**
  * @author Him188moe
  */
+@PacketId("00 CD")
 @ExperimentalUnsignedTypes
-class ClientFriendMessagePacket(
+class ClientSendGroupMessagePacket(
+        val group: Int,
         val qq: Int,
         val sessionKey: ByteArray,
         val message: String
 ) : ClientPacket() {
     override fun encode() {
+        TODO()
 
+        this.encryptAndWrite(sessionKey) {
+            // it.write()
+
+        }
     }
 }