diff --git a/mycontext/context.go b/mycontext/context.go
index fb1ff05b64b28aa17b8fc3a6d7bffbb9852a1200..df722e722e8d715b374fa62960d6d9c65eb78c82 100644
--- a/mycontext/context.go
+++ b/mycontext/context.go
@@ -28,6 +28,9 @@ const (
 	METHOD        = "method"
 	IMEI          = "imei"
 	LANGUAGE      = "language"
+	TOKEN         = "token"
+	CARRIER       = "carrier"  // 运营商,460 开头是中国,如:46001,46007
+	TIMEZONE      = "timeZone" // 时区 GMT+8 / GMT+8:00
 )
 
 /**
diff --git a/rpc/user_center_func.go b/rpc/user_center_func.go
index a005bc6bd312592b8fb516499288c80e366ad4d4..1eb4a74f7e032ed09b2586805b39a0914e6e9a7e 100644
--- a/rpc/user_center_func.go
+++ b/rpc/user_center_func.go
@@ -131,3 +131,87 @@ func SendGlobalGameBanner(winUserId uint64, diamond uint64, avatar string, gameT
 	}
 	return nil
 }
+
+func SendJoinGroup(userId uint64, externalId string, groupId string) error {
+	msg := &userProxy.JoinGroup{GroupId: groupId, ExternalId: externalId}
+	if buffer, err := proto.Marshal(msg); err == nil {
+		userIds := []uint64{userId}
+		rspUids, err := multicast(userIds, MsgTypeJoinGroup, buffer)
+
+		//记录socket,注意闭包问题
+		go func(userIds []uint64, msg *userProxy.JoinGroup, rspUids []uint64, err error) {
+			buf, _ := json.Marshal(msg)
+			AddRpcLogs(MsgTypeJoinGroup, userIds, string(buf[:]), rspUids, err)
+		}(userIds, msg, rspUids, err)
+
+		if err != nil {
+			mylogrus.MyLog.Errorf("grpc SendJoinGroup send fail")
+			return err
+		} else {
+			mylogrus.MyLog.Info("grpc SendJoinGroup send success")
+		}
+	} else {
+		return err
+	}
+	return nil
+}
+
+func SendConfigChange(operUserId uint64, configType uint32) error {
+	msg := &userProxy.ConfigChange{
+		Type: configType,
+	}
+	if buffer, err := proto.Marshal(msg); err == nil {
+		rspUids, err := broadcast(MsgTypeConfigChange, buffer)
+
+		//记录socket,注意闭包问题
+		go func(configType uint32, msg *userProxy.ConfigChange, rspUids []uint64, err error) {
+			buf, _ := json.Marshal(msg)
+			AddRpcLog(MsgTypeConfigChange, operUserId, string(buf[:]), rspUids, err)
+		}(configType, msg, rspUids, err)
+
+		if err != nil {
+			mylogrus.MyLog.Errorf("grpc SendConfigChange send fail")
+			return err
+		} else {
+			mylogrus.MyLog.Info("grpc SendConfigChange send success")
+		}
+	} else {
+		return err
+	}
+	return nil
+}
+
+func SendGroupChatNotice(fromUserId uint64, userIds []uint64, senderExtId string, senderCode string, senderSex uint32, senderAvatar string,
+	text string, groupId, groupName, groupCode, groupAvatar string, userInNum uint32) error {
+	msg := &userProxy.GroupSendNotice{
+		SenderExtId:  senderExtId,
+		SenderCode:   senderCode,
+		SenderSex:    senderSex,
+		SenderAvatar: senderAvatar,
+		Text:         text,
+		GroupName:    groupName,
+		GroupCode:    groupCode,
+		GroupAvatar:  groupAvatar,
+		UserInNum:    userInNum,
+		GroupId:      groupId,
+	}
+	if buffer, err := proto.Marshal(msg); err == nil {
+		rspUids, err := multicast(userIds, MsgTypeGroupChatNotice, buffer)
+
+		//记录socket,注意闭包问题
+		go func(userId uint64, msg *userProxy.GroupSendNotice, rspUids []uint64, err error) {
+			buf, _ := json.Marshal(msg)
+			AddRpcLog(MsgTypeGroupChatNotice, userId, string(buf[:]), rspUids, err)
+		}(fromUserId, msg, rspUids, err)
+
+		if err != nil {
+			mylogrus.MyLog.Errorf("grpc SendGroupChatNotice send fail,userId:", fromUserId)
+			return err
+		} else {
+			mylogrus.MyLog.Info("grpc SendGroupChatNotice send success,userId:", fromUserId)
+		}
+	} else {
+		return err
+	}
+	return nil
+}
diff --git a/utils/utils.go b/utils/utils.go
index ed2d9f02ac9d36df4c5ab0a61c74105d41201887..bb8807c535c33f287767f81f99070bd002aefaa8 100644
--- a/utils/utils.go
+++ b/utils/utils.go
@@ -2,7 +2,9 @@ package utils
 
 import (
 	"encoding/json"
+	"git.hilo.cn/hilo-common/resource/config"
 	"git.hilo.cn/hilo-common/resource/mysql"
+	"strings"
 	"time"
 )
 
@@ -92,3 +94,12 @@ func IsInStringList(str string, list []string) bool {
 	}
 	return false
 }
+
+// 缩短url: 去掉AWS前缀，以便aws接口使用
+func StripAwsPrefix(url string) string {
+	if !strings.HasPrefix(url, config.GetConfigAws().AWS_CDN) {
+		return url
+	}
+	newUrl := url[len(config.GetConfigAws().AWS_CDN):]
+	return newUrl
+}