support SetGroupAnonymous (#312)

client/builders.go

@@ -1196,3 +1196,18 @@ func (c *QQClient) buildUpdateProfileDetailPacket(profileRecord map[uint16][]byt
 	cl()
 	return c.uniPacket("OidbSvc.0x4ff_9_IMCore", payload)
 }
+
+// OidbSvc.0x568_22
+func (c *QQClient) buildSetGroupAnonymous(groupCode int64, enable bool) (uint16, []byte) {
+	var t byte = 0
+	if enable {
+		t = 1
+	}
+	b, cl := binary.OpenWriterF(func(w *binary.Writer) {
+		w.WriteUInt32(uint32(groupCode))
+		w.WriteByte(t)
+	})
+	payload := c.packOIDBPackage(1384, 22, b)
+	cl()
+	return c.uniPacket("OidbSvc.0x568_22", payload)
+}

client/client.go

@@ -790,6 +790,10 @@ func (g *GroupInfo) removeMember(uin int64) {
 	})
 }
 
+func (c *QQClient) setGroupAnonymous(groupCode int64, enable bool) {
+	_, _ = c.sendAndWait(c.buildSetGroupAnonymous(groupCode, enable))
+}
+
 // UpdateProfile 修改个人资料
 func (c *QQClient) UpdateProfile(profile ProfileDetailUpdate) {
 	_, _ = c.sendAndWait(c.buildUpdateProfileDetailPacket(profile))

client/group_info.go

@@ -408,6 +408,12 @@ func (m *GroupMemberInfo) Mute(time uint32) error {
 	}
 }
 
+func (g *GroupInfo) SetAnonymous(enable bool) {
+	if g.AdministratorOrOwner() {
+		g.client.setGroupAnonymous(g.Code, enable)
+	}
+}
+
 func (m *GroupMemberInfo) Manageable() bool {
 	if m.Uin == m.Group.client.Uin {
 		return true