发起和结束咨询的消息由系统发出，发送者ID记录操作人！

src/server/endpoints/v2/session.endpoint.js

@@ -253,7 +253,7 @@ router.post(APIv2.Sessions.Messages, function (req, res) {
    }
    // 消息的发送时间由服务端决定
    payload.timestamp = new Date((new Date().getTime() + 1000));
    payload.timestamp = new Date((new Date().getTime()));
    let sessions = new Sessions();
    ControllerUtil.regModelEventHandler(sessions, res);
@@ -269,7 +269,7 @@ router.post(APIv2.Sessions.TopicMessages, function (req, res) {
    }
    let sessions = new Sessions();
    ControllerUtil.regModelEventHandler(sessions, res);
    payload.timestamp = new Date((new Date().getTime() + 1000));
    payload.timestamp = new Date((new Date().getTime()));
    sessions.sendTopicMessages(req.params.topic_id, payload);
})

src/server/models/sessions/topics.js

@@ -231,7 +231,7 @@ class Topics extends RedisModel {
            msg.sender_name = messages.sender_name;
            msg.content_type = 6;
            msg.content = messages.description;
            msg.timestamp = new Date(new Date().getTime()+1000);
            msg.timestamp = new Date(new Date().getTime());
            sessions.saveMessageByTopic(msg, sessionId, function (err, msgId) {
                if (messages.img) {
                    setTimeout(function(){
@@ -252,7 +252,7 @@ class Topics extends RedisModel {
                msgimg.sender_name = messages.sender_name;
                msgimg.content_type = 2;
                msgimg.content = imgs[j];
                msgimg.timestamp = new Date(new Date().getTime()+1000);
                msgimg.timestamp = new Date(new Date().getTime());
                sessions.saveMessageByTopic(msgimg, sessionId, function (err, msgId) {
                    if (err) {
                        log.info("send create img error " + imgs[j]);