Merge remote-tracking branch 'upstream/master'

mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/ContactImpl.kt

@@ -67,7 +67,8 @@ internal class QQImpl(bot: QQAndroidBot, override val coroutineContext: Coroutin
 
 internal class MemberImpl(
     qq: QQImpl,
-    override var groupCard: String,
+    initGroupCard: String,
+    initSpecialTitle: String,
     group: GroupImpl,
     override val coroutineContext: CoroutineContext,
     override val permission: MemberPermission
@@ -75,6 +76,42 @@ internal class MemberImpl(
     override val group: GroupImpl by group.unsafeWeakRef()
     val qq: QQImpl by qq.unsafeWeakRef()
 
+
+    override var groupCard: String by Delegates.observable(initGroupCard) { _, old, new ->
+        check(group.botPermission != MemberPermission.MEMBER) {
+            "Permission Denied when trying to edit group card for $this"
+        }
+        if (group.botPermission != MemberPermission.MEMBER && new != old) {
+
+            launch {
+                bot.network.run {
+                    TroopManagement.EditGroupNametag(
+                        bot.client,
+                        this@MemberImpl,
+                        new
+                    ).sendWithoutExpect()
+                }
+            }
+        }
+    }
+
+    override var specialTitle: String by Delegates.observable(initSpecialTitle) { _, old, new ->
+        check(group.botPermission == MemberPermission.OWNER) {
+            "Permission Denied when trying to edit special title for $this, need to be OWNER"
+        }
+        if (new != old) {
+            launch {
+                bot.network.run {
+                    TroopManagement.EditSpecialTitle(
+                        bot.client,
+                        this@MemberImpl,
+                        new
+                    ).sendWithoutExpect()
+                }
+            }
+        }
+    }
+
     override val bot: QQAndroidBot get() = qq.bot
 
     override suspend fun mute(durationSeconds: Int): Boolean {
@@ -139,7 +176,7 @@ internal class GroupImpl(
         if (this.botPermission != MemberPermission.MEMBER && oldValue != newValue) {
             this.bot.launch {
                 bot.network.run {
-                    TroopManagement.updateGroupInfo.name(
+                    TroopManagement.GroupOperation.name(
                         client = bot.client,
                         groupCode = id,
                         newName = newValue
@@ -153,7 +190,7 @@ internal class GroupImpl(
         if (this.botPermission != MemberPermission.MEMBER && oldValue != newValue) {
             this.bot.launch {
                 bot.network.run {
-                    TroopManagement.updateGroupInfo.memo(
+                    TroopManagement.GroupOperation.memo(
                         client = bot.client,
                         groupCode = id,
                         newMemo = newValue
@@ -168,7 +205,7 @@ internal class GroupImpl(
         if (this.botPermission != MemberPermission.MEMBER && oldValue != newValue) {
             this.bot.launch {
                 bot.network.run {
-                    TroopManagement.updateGroupInfo.allowMemberInvite(
+                    TroopManagement.GroupOperation.allowMemberInvite(
                         client = bot.client,
                         groupCode = id,
                         switch = newValue
@@ -190,7 +227,7 @@ internal class GroupImpl(
         if (this.botPermission != MemberPermission.MEMBER && oldValue != newValue) {
             this.bot.launch {
                 bot.network.run {
-                    TroopManagement.updateGroupInfo.confessTalk(
+                    TroopManagement.GroupOperation.confessTalk(
                         client = bot.client,
                         groupCode = id,
                         switch = newValue
@@ -205,7 +242,7 @@ internal class GroupImpl(
         if (this.botPermission != MemberPermission.MEMBER && oldValue != newValue) {
             this.bot.launch {
                 bot.network.run {
-                    TroopManagement.updateGroupInfo.muteAll(
+                    TroopManagement.GroupOperation.muteAll(
                         client = bot.client,
                         groupCode = id,
                         switch = newValue

mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/io/serialization/SerializationUtils.kt

@@ -90,7 +90,10 @@ fun <T : ProtoBuf> ByteArray.loadAs(deserializer: DeserializationStrategy<T>): T
 /**
  * load
  */
-fun <T : ProtoBuf> ByteReadPacket.readProtoBuf(serializer: DeserializationStrategy<T>, length: Int = this.remaining.toInt()): T {
+fun <T : ProtoBuf> ByteReadPacket.readProtoBuf(
+    serializer: DeserializationStrategy<T>,
+    length: Int = this.remaining.toInt()
+): T {
     return ProtoBufWithNullableSupport.load(serializer, this.readBytes(length))
 }
 
@@ -98,11 +101,20 @@ fun <T : ProtoBuf> ByteReadPacket.readProtoBuf(serializer: DeserializationStrate
  * 构造 [RequestPacket] 的 [RequestPacket.sBuffer]
  */
 fun <T : JceStruct> jceRequestSBuffer(name: String, serializer: SerializationStrategy<T>, jceStruct: T): ByteArray {
+    return jceRequestSBuffer(name, serializer, jceStruct, JceCharset.GBK)
+}
+
+fun <T : JceStruct> jceRequestSBuffer(
+    name: String,
+    serializer: SerializationStrategy<T>,
+    jceStruct: T,
+    charset: JceCharset
+): ByteArray {
     return RequestDataVersion3(
         mapOf(
             name to JCE_STRUCT_HEAD_OF_TAG_0 + jceStruct.toByteArray(serializer) + JCE_STRUCT_TAIL_OF_TAG_0
         )
-    ).toByteArray(RequestDataVersion3.serializer())
+    ).toByteArray(RequestDataVersion3.serializer(), charset)
 }
 
 private val JCE_STRUCT_HEAD_OF_TAG_0 = byteArrayOf(0x0A)

mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/QQAndroidBotNetworkHandler.kt

@@ -161,6 +161,20 @@ internal class QQAndroidBotNetworkHandler(bot: QQAndroidBot) : BotNetworkHandler
             val toGet: MutableMap<GroupImpl, ContactList<Member>> = mutableMapOf()
             troopData.groups.forEach {
                 val contactList = ContactList(LockFreeLinkedList<Member>())
+                val groupInfoResponse = try {
+                    TroopManagement.GetGroupOperationInfo(
+                        client = bot.client,
+                        groupCode = it.groupCode
+                    ).sendAndExpect<TroopManagement.GetGroupOperationInfo.Response>()
+                } catch (e: Exception) {
+                    bot.logger.info("获取" + it.groupCode + "的群设置失败")
+                    TroopManagement.GetGroupOperationInfo.Response(
+                        allowAnonymousChat = false,
+                        allowMemberInvite = false,
+                        autoApprove = false,
+                        confessTalk = false
+                    )
+                }
                 val group =
                     GroupImpl(
                         bot = bot,
@@ -169,39 +183,25 @@ internal class QQAndroidBotNetworkHandler(bot: QQAndroidBot) : BotNetworkHandler
                         uin = it.groupUin,
                         initName = it.groupName,
                         initAnnouncement = it.groupMemo,
-                        initAllowMemberInvite = false,
-                        initConfessTalk = false,
-                        initMuteAll = false,
-                        initAutoApprove = false,
-                        initAnonymousChat = false,
+                        initAllowMemberInvite = groupInfoResponse.allowMemberInvite,
+                        initConfessTalk = groupInfoResponse.confessTalk,
+                        initMuteAll = false,//todo
+                        initAutoApprove = groupInfoResponse.autoApprove,
+                        initAnonymousChat = groupInfoResponse.allowAnonymousChat,
                         members = contactList
                     )
-                group.owner =
-                    MemberImpl(
-                        qq = bot.QQ(it.dwGroupOwnerUin) as QQImpl,
-                        groupCard = "",//unknown now
-                        group = group,
-                        coroutineContext = group.coroutineContext,
-                        permission = MemberPermission.OWNER
-                    )
-                if (it.dwGroupOwnerUin == bot.uin) {
-                    group.botPermission = MemberPermission.OWNER
-                }
                 toGet[group] = contactList
                 bot.groups.delegate.addLast(group)
-            }
-            coroutineScope {
-                toGet.forEach {
-                    launch {
-                        try {
-                            getTroopMemberList(it.key, it.value, it.key.owner.id)
-                            groupInfo[it.key.id] = it.value.size
-                        } catch (e: Exception) {
-                            groupInfo[it.key.id] = -1
-                            bot.logger.info("群${it.key.uin}的列表拉取失败, 将采用动态加入")
-                        }
+                launch {
+                    try {
+                        getTroopMemberList(group, contactList, it.dwGroupOwnerUin)
+                        groupInfo[it.groupCode] = contactList.size
+                    } catch (e: Exception) {
+                        groupInfo[it.groupCode] = -1
+                        bot.logger.info("群${it.groupCode}的列表拉取失败, 将采用动态加入")
+                        println(e.message)
+                        println(e.logStacktrace())
                     }
-                    //delay(200)
                 }
             }
             bot.logger.info("群组列表与群成员加载完成, 共 ${troopData.groups.size}个")
@@ -243,12 +243,6 @@ internal class QQAndroidBotNetworkHandler(bot: QQAndroidBot) : BotNetworkHandler
         MessageSvc.PbGetMsg(bot.client, MsgSvc.SyncFlag.START, currentTimeSeconds).sendWithoutExpect()
     }
 
-    suspend fun getGroupInfo(uin: Long) {
-        val data = TroopManagement.getGroupInfo(
-            client = bot.client,
-            groupCode = uin
-        ).sendAndExpect<TroopManagement.getGroupInfo.Response>(timeoutMillis = 3000)
-    }
 
     suspend fun getTroopMemberList(group: GroupImpl, list: ContactList<Member>, owner: Long): ContactList<Member> {
         bot.logger.info("开始获取群[${group.uin}]成员列表")
@@ -262,29 +256,29 @@ internal class QQAndroidBotNetworkHandler(bot: QQAndroidBot) : BotNetworkHandler
                 nextUin = nextUin
             ).sendAndExpect<FriendList.GetTroopMemberList.Response>(timeoutMillis = 3000)
             data.members.forEach {
+                val member = MemberImpl(
+                    qq = bot.QQ(it.memberUin) as QQImpl,
+                    initGroupCard = it.autoRemark ?: it.nick,
+                    initSpecialTitle = it.sSpecialTitle ?: "",
+                    group = group,
+                    coroutineContext = group.coroutineContext,
+                    permission = when {
+                        it.memberUin == owner -> MemberPermission.OWNER
+                        it.dwFlag == 1L -> MemberPermission.ADMINISTRATOR
+                        else -> MemberPermission.MEMBER
+                    }
+                )
+                if (member.permission == MemberPermission.OWNER) {
+                    group.owner = member
+                }
                 if (it.memberUin != bot.uin) {
-                    list.delegate.addLast(
-                        MemberImpl(
-                            qq = bot.QQ(it.memberUin) as QQImpl,
-                            groupCard = it.autoRemark ?: it.nick,
-                            group = group,
-                            coroutineContext = group.coroutineContext,
-                            permission = when {
-                                it.memberUin == owner -> MemberPermission.OWNER
-                                it.dwFlag == 1L -> MemberPermission.ADMINISTRATOR
-                                else -> MemberPermission.MEMBER
-                            }
-                        )
-                    )
+                    list.delegate.addLast(member)
                 } else {
-                    group.owner.groupCard = it.autoRemark ?: it.nick
-                    if (it.dwFlag == 1L) {
-                        group.botPermission = MemberPermission.ADMINISTRATOR
-                    }
+                    group.botPermission = member.permission
                 }
+                size += data.members.size
+                nextUin = data.nextUin
             }
-            size += data.members.size
-            nextUin = data.nextUin
             if (nextUin == 0L) {
                 break
             }

mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/jce/FriendList.kt

@@ -4,6 +4,25 @@ import kotlinx.serialization.SerialId
 import kotlinx.serialization.Serializable
 import net.mamoe.mirai.qqandroid.io.JceStruct
 
+@Serializable
+internal class ModifyGroupCardReq(
+    @SerialId(0) val dwZero: Long,
+    @SerialId(1) val dwGroupCode: Long,
+    @SerialId(2) val dwNewSeq: Long,
+    @SerialId(3) val vecUinInfo: List<stUinInfo>
+) : JceStruct
+
+@Serializable
+internal class stUinInfo(
+    @SerialId(0) val dwuin: Long,
+    @SerialId(1) val dwFlag: Long,
+    @SerialId(2) val sName: String = "",
+    @SerialId(3) val gender: Byte,
+    @SerialId(4) val sPhone: String = "",
+    @SerialId(5) val sEmail: String = "",
+    @SerialId(6) val sRemark: String = ""
+) : JceStruct
+
 @Serializable
 internal class GetFriendListReq(
     @SerialId(0) val reqtype: Int? = null,

mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/data/proto/OIDB.kt

@@ -5,6 +5,78 @@ import kotlinx.serialization.Serializable
 import net.mamoe.mirai.qqandroid.io.ProtoBuf
 import net.mamoe.mirai.qqandroid.network.protocol.packet.EMPTY_BYTE_ARRAY
 
+@Serializable
+class Oidb0x8fc : ProtoBuf {
+    @Serializable
+    class CardNameElem(
+        @SerialId(1) val enumCardType: Int /* enum */ = 1,
+        @SerialId(2) val value: ByteArray = EMPTY_BYTE_ARRAY
+    ) : ProtoBuf
+
+    @Serializable
+    class CommCardNameBuf(
+        @SerialId(1) val richCardName: List<Oidb0x8fc.RichCardNameElem>? = null
+    ) : ProtoBuf
+
+    @Serializable
+    class ReqBody(
+        @SerialId(1) val groupCode: Long = 0L,
+        @SerialId(2) val showFlag: Int = 0,
+        @SerialId(3) val memLevelInfo: List<Oidb0x8fc.MemberInfo>? = null,
+        @SerialId(4) val levelName: List<Oidb0x8fc.LevelName>? = null,
+        @SerialId(5) val updateTime: Int = 0,
+        @SerialId(6) val officeMode: Int = 0,
+        @SerialId(7) val groupOpenAppid: Int = 0,
+        @SerialId(8) val msgClientInfo: Oidb0x8fc.ClientInfo? = null,
+        @SerialId(9) val authKey: ByteArray = EMPTY_BYTE_ARRAY
+    ) : ProtoBuf
+
+    @Serializable
+    class MemberInfo(
+        @SerialId(1) val uin: Long = 0L,
+        @SerialId(2) val point: Int = 0,
+        @SerialId(3) val activeDay: Int = 0,
+        @SerialId(4) val level: Int = 0,
+        @SerialId(5) val specialTitle: ByteArray = EMPTY_BYTE_ARRAY,
+        @SerialId(6) val specialTitleExpireTime: Int = 0,
+        @SerialId(7) val uinName: ByteArray = EMPTY_BYTE_ARRAY,
+        @SerialId(8) val memberCardName: ByteArray = EMPTY_BYTE_ARRAY,
+        @SerialId(9) val phone: ByteArray = EMPTY_BYTE_ARRAY,
+        @SerialId(10) val email: ByteArray = EMPTY_BYTE_ARRAY,
+        @SerialId(11) val remark: ByteArray = EMPTY_BYTE_ARRAY,
+        @SerialId(12) val gender: Int = 0,
+        @SerialId(13) val job: ByteArray = EMPTY_BYTE_ARRAY,
+        @SerialId(14) val tribeLevel: Int = 0,
+        @SerialId(15) val tribePoint: Int = 0,
+        @SerialId(16) val richCardName: List<Oidb0x8fc.CardNameElem>? = null,
+        @SerialId(17) val commRichCardName: ByteArray = EMPTY_BYTE_ARRAY
+    ) : ProtoBuf
+
+    @Serializable
+    class RichCardNameElem(
+        @SerialId(1) val ctrl: ByteArray = EMPTY_BYTE_ARRAY,
+        @SerialId(2) val text: ByteArray = EMPTY_BYTE_ARRAY
+    ) : ProtoBuf
+
+    @Serializable
+    class RspBody(
+        @SerialId(1) val groupCode: Long = 0L,
+        @SerialId(2) val errInfo: String = ""
+    ) : ProtoBuf
+
+    @Serializable
+    class ClientInfo(
+        @SerialId(1) val implat: Int = 0,
+        @SerialId(2) val ingClientver: String = ""
+    ) : ProtoBuf
+
+    @Serializable
+    class LevelName(
+        @SerialId(1) val level: Int = 0,
+        @SerialId(2) val name: String = ""
+    ) : ProtoBuf
+}
+
 @Serializable
 class Oidb0x88d : ProtoBuf {
     @Serializable

mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/PacketFactory.kt

@@ -125,10 +125,11 @@ internal object KnownPacketFactories {
         ImgStore.GroupPicUp,
         ImageUpPacket,
         LongConn.OffPicDown,
-        TroopManagement.EditNametag,
+        TroopManagement.EditSpecialTitle,
         TroopManagement.Mute,
-        TroopManagement.updateGroupInfo,
-        TroopManagement.getGroupInfo
+        TroopManagement.GroupOperation,
+        TroopManagement.GetGroupOperationInfo,
+        TroopManagement.EditGroupNametag
     )
 
     object IncomingFactories : List<IncomingPacketFactory<*>> by mutableListOf(

mirai-core-qqandroid/src/commonMain/kotlin/net/mamoe/mirai/qqandroid/network/protocol/packet/chat/TroopManagement.kt

 package net.mamoe.mirai.qqandroid.network.protocol.packet.chat
 
-import kotlinx.io.core.ByteReadPacket
-import kotlinx.io.core.buildPacket
-import kotlinx.io.core.readBytes
-import kotlinx.io.core.toByteArray
+import kotlinx.io.charsets.Charset
+import kotlinx.io.charsets.encode
+import kotlinx.io.core.*
+import kotlinx.serialization.toUtf8Bytes
+import net.mamoe.mirai.contact.Member
 import net.mamoe.mirai.data.Packet
 import net.mamoe.mirai.qqandroid.QQAndroidBot
-import net.mamoe.mirai.qqandroid.io.serialization.toByteArray
-import net.mamoe.mirai.qqandroid.io.serialization.writeProtoBuf
+import net.mamoe.mirai.qqandroid.io.serialization.*
 import net.mamoe.mirai.qqandroid.network.QQAndroidClient
+import net.mamoe.mirai.qqandroid.network.protocol.data.jce.GetTroopListReqV2Simplify
+import net.mamoe.mirai.qqandroid.network.protocol.data.jce.ModifyGroupCardReq
+import net.mamoe.mirai.qqandroid.network.protocol.data.jce.RequestPacket
+import net.mamoe.mirai.qqandroid.network.protocol.data.jce.stUinInfo
 import net.mamoe.mirai.qqandroid.network.protocol.data.proto.Oidb0x88d
 import net.mamoe.mirai.qqandroid.network.protocol.data.proto.Oidb0x89a
+import net.mamoe.mirai.qqandroid.network.protocol.data.proto.Oidb0x8fc
 import net.mamoe.mirai.qqandroid.network.protocol.data.proto.OidbSso
 import net.mamoe.mirai.qqandroid.network.protocol.packet.EMPTY_BYTE_ARRAY
 import net.mamoe.mirai.qqandroid.network.protocol.packet.OutgoingPacket
 import net.mamoe.mirai.qqandroid.network.protocol.packet.OutgoingPacketFactory
 import net.mamoe.mirai.qqandroid.network.protocol.packet.buildOutgoingUniPacket
-import net.mamoe.mirai.qqandroid.network.protocol.packet.login.LoginPacket
 import net.mamoe.mirai.utils.daysToSeconds
-import net.mamoe.mirai.utils.io.debugPrintThis
+import net.mamoe.mirai.utils.io.encodeToGBKString
+import net.mamoe.mirai.utils.io.encodeToString
 
 internal object TroopManagement {
 
@@ -54,13 +59,25 @@ internal object TroopManagement {
             }
         }
 
-        object Response : Packet
+        object Response : Packet {
+            override fun toString(): String {
+                return "Response(Mute)"
+            }
+        }
     }
 
 
-    internal object getGroupInfo : OutgoingPacketFactory<getGroupInfo.Response>("OidbSvc.0x88d_7") {
-
-        class Response() : Packet
+    internal object GetGroupOperationInfo : OutgoingPacketFactory<GetGroupOperationInfo.Response>("OidbSvc.0x88d_7") {
+        class Response(
+            val allowAnonymousChat: Boolean,
+            val allowMemberInvite: Boolean,
+            val autoApprove: Boolean,
+            val confessTalk: Boolean
+        ) : Packet {
+            override fun toString(): String {
+                return "Response(GroupInfo)"
+            }
+        }
 
         operator fun invoke(
             client: QQAndroidClient,
@@ -104,12 +121,18 @@ internal object TroopManagement {
         }
 
         override suspend fun ByteReadPacket.decode(bot: QQAndroidBot): Response {
-            debugPrintThis()
-            return Response()
+            with(this.readBytes().loadAs(OidbSso.OIDBSSOPkg.serializer()).bodybuffer.loadAs(Oidb0x88d.RspBody.serializer()).stzrspgroupinfo!![0].stgroupinfo!!) {
+                return Response(
+                    allowMemberInvite = (this.groupFlagExt?.and(0x000000c0) != 0),
+                    allowAnonymousChat = (this.groupFlagExt?.and(0x40000000) == 0),
+                    autoApprove = (this.groupFlagext3?.and(0x00100000) == 0),
+                    confessTalk = (this.groupFlagext3?.and(0x00002000) == 0)
+                )
+            }
         }
     }
 
-    internal object updateGroupInfo : OutgoingPacketFactory<updateGroupInfo.Response>("OidbSvc.0x89a_0") {
+    internal object GroupOperation : OutgoingPacketFactory<GroupOperation.Response>("OidbSvc.0x89a_0") {
         override suspend fun ByteReadPacket.decode(bot: QQAndroidBot): Response {
             return Response
         }
@@ -262,10 +285,90 @@ internal object TroopManagement {
     }
 
 
-    internal object EditNametag : OutgoingPacketFactory<LoginPacket.LoginPacketResponse>("OidbSvc.0x8fc_2") {
-        override suspend fun ByteReadPacket.decode(bot: QQAndroidBot): LoginPacket.LoginPacketResponse {
-            TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
+    internal object EditSpecialTitle : OutgoingPacketFactory<EditSpecialTitle.Response>("OidbSvc.0x8fc_2") {
+        object Response : Packet
+
+        override suspend fun ByteReadPacket.decode(bot: QQAndroidBot): Response {
+            return Response
         }
+
+        operator fun invoke(
+            client: QQAndroidClient,
+            member: Member,
+            newName: String
+        ): OutgoingPacket {
+            return buildOutgoingUniPacket(client) {
+                writeProtoBuf(
+                    OidbSso.OIDBSSOPkg.serializer(),
+                    OidbSso.OIDBSSOPkg(
+                        command = 2300,
+                        serviceType = 2,
+                        bodybuffer = Oidb0x8fc.ReqBody(
+                            groupCode = member.group.id,
+                            memLevelInfo = listOf(
+                                Oidb0x8fc.MemberInfo(
+                                    uin = member.id,
+                                    uinName = newName.toByteArray(),
+                                    specialTitle = newName.toByteArray(),
+                                    specialTitleExpireTime = -1
+                                )
+                            )
+                        ).toByteArray(Oidb0x8fc.ReqBody.serializer())
+                    )
+                )
+            }
+        }
+    }
+
+    internal object EditGroupNametag :
+        OutgoingPacketFactory<EditGroupNametag.Response>("friendlist.ModifyGroupCardReq") {
+        object Response : Packet
+
+        override suspend fun ByteReadPacket.decode(bot: QQAndroidBot): EditGroupNametag.Response {
+            return Response
+        }
+
+        operator fun invoke(
+            client: QQAndroidClient,
+            member: Member,
+            newName: String
+        ): OutgoingPacket {
+            return buildOutgoingUniPacket(client) {
+                writeJceStruct(
+                    RequestPacket.serializer(),
+                    RequestPacket(
+                        sFuncName = "ModifyGroupCardReq",
+                        sServantName = "mqq.IMService.FriendListServiceServantObj",
+                        iVersion = 3,
+                        cPacketType = 0x00,
+                        iMessageType = 0x00000,
+                        iRequestId = client.nextRequestPacketRequestId(),
+                        sBuffer = jceRequestSBuffer(
+                            "MGCREQ",
+                            ModifyGroupCardReq.serializer(),
+                            ModifyGroupCardReq(
+                                dwZero = 0L,
+                                dwGroupCode = member.group.id,
+                                dwNewSeq = 0L,
+                                vecUinInfo = listOf(
+                                    stUinInfo(
+                                        gender = 0,
+                                        dwuin = member.id,
+                                        dwFlag = 31,
+                                        sName = newName.toUtf8Bytes().encodeToGBKString(),
+                                        sPhone = "",
+                                        sEmail = "",
+                                        sRemark = ""
+                                    )
+                                )
+                            ),
+                            JceCharset.GBK
+                        )
+                    )
+                )
+            }
+        }
+
     }
 
     /*

mirai-core-qqandroid/src/jvmTest/kotlin/test/ProtoBufDataClassGenerator.kt

@@ -6,7 +6,7 @@ import java.io.File
 
 fun main() {
     println(
-        File("""/Users/jiahua.liu/Desktop/QQAndroid-F/app/src/main/java/tencent/im/oidb/cmd0x88d/""")
+        File("""/Users/jiahua.liu/Desktop/QQAndroid-F/app/src/main/java/tencent/im/oidb/cmd0x8fc/""")
             .generateUnarrangedClasses().toMutableList().arrangeClasses().joinToString("\n\n")
     )
 }

mirai-core/src/commonMain/kotlin/net.mamoe.mirai/contact/Member.kt

@@ -22,10 +22,23 @@ interface Member : QQ, Contact {
     val permission: MemberPermission
 
     /**
-     * 群名片 (如果有) 或个人昵称. 动态更新.
+     * ====以下字段会在更新后异步更新到服务器====
+     */
+
+    /**
+     * 群名片
      */
     var groupCard: String
 
+    /**
+     * 群头衔
+     */
+    var specialTitle: String
+
+    /**
+     * ====以上字段会在更新后异步更新到服务器====
+     */
+
     /**
      * 禁言
      *

mirai-core/src/commonMain/kotlin/net.mamoe.mirai/utils/io/ByteArrayUtil.kt

@@ -2,6 +2,7 @@
 
 package net.mamoe.mirai.utils.io
 
+import kotlinx.io.charsets.Charset
 import kotlinx.io.core.ByteReadPacket
 import kotlinx.io.core.String
 import kotlinx.io.core.use
@@ -81,7 +82,11 @@ fun UByteArray.toUHexString(separator: String = " ", offset: Int = 0, length: In
 @Suppress("NOTHING_TO_INLINE")
 inline fun ByteArray.encodeToString(): String = String(this)
 
-fun ByteArray.toReadPacket(offset: Int = 0, length: Int = this.size - offset) = ByteReadPacket(this, offset = offset, length = length)
+fun ByteArray.encodeToGBKString(): String = String(this, 0, this.size, Charset.forName("GBK"))
+
+
+fun ByteArray.toReadPacket(offset: Int = 0, length: Int = this.size - offset) =
+    ByteReadPacket(this, offset = offset, length = length)
 
 @UseExperimental(ExperimentalContracts::class)
 inline fun <R> ByteArray.read(t: ByteReadPacket.() -> R): R {