messages.js 15 KB

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  1. /**
  2. * 消息模型。
  3. */
  4. "use strict";
  5. let MessageRepo = require('../../repository/oracle/message.repo');
  6. let RedisModel = require('./../redis.model.js');
  7. let SessionRepo = require('../../repository/oracle/session.repo');
  8. let ParticipantRepo = require('../../repository/oracle/participant.repo');
  9. let RedisClient = require('../../repository/redis/redis.client.js');
  10. let ModelUtil = require('../../util/model.util');
  11. var ObjectUtil = require("../../util/object.util.js");
  12. let WechatClient = require("../client/wechat.client.js");
  13. let AppClient = require("../client/app.client.js");
  14. let mongoose = require('mongoose');
  15. let redis = RedisClient.redisClient().connection;
  16. let log = require('../../util/log.js');
  17. let configFile = require('../../include/commons').CONFIG_FILE;
  18. let config = require('../../resources/config/' + configFile);
  19. let logger = require('../../util/log');
  20. let pubSub = require("../redis/pubSub.js");
  21. let async = require("async");
  22. const REDIS_KEYS = require('../../include/commons').REDIS_KEYS;
  23. class Messages extends RedisModel {
  24. constructor() {
  25. super();
  26. }
  27. /**
  28. * 根据topicId获取对应的议题的信息列表
  29. * @param topicId
  30. */
  31. getMessagesByTopicId(topicId) {
  32. }
  33. /**
  34. * 分页
  35. * 根据topicId获取对应的议题的成员信息
  36. * @param topicId
  37. * @param page
  38. * @param pagesize
  39. */
  40. getMessagesByTopicIdForPage(topicId, page, pagesize) {
  41. }
  42. /**
  43. * 获取消息MySQL
  44. * @param sessionId
  45. * @param page
  46. * @param pagesize
  47. * @param handler
  48. */
  49. getMessageFromMySQL(sessionId, page, pagesize, messageType, handler) {
  50. MessageRepo.findBySessionId(sessionId, page, pagesize, messageType, handler);
  51. }
  52. /**
  53. * 获取消息MySQL
  54. * @param sessionId
  55. * @param page
  56. * @param pagesize
  57. * @param messageType
  58. */
  59. getMessageByType(sessionId, page, pagesize, messageType) {
  60. let self = this;
  61. page = parseInt(page);
  62. pagesize = parseInt(pagesize);
  63. MessageRepo.findBySessionId(sessionId, page, pagesize, messageType, function (err, res) {
  64. if (err) {
  65. ModelUtil.emitError(self.eventEmitter, {message: "Get message by session and type failed: " + err});
  66. } else {
  67. ModelUtil.emitOK(self.eventEmitter, {data: res});
  68. }
  69. });
  70. }
  71. /**
  72. * 获取单条消息
  73. *
  74. * @param messageId
  75. */
  76. getMessageById(messageId) {
  77. }
  78. /**
  79. * 将消息保存至REDIS,并更新会话的最后状态,清理会话的过期消息。
  80. *
  81. * PS:更新此处的消息缓存代码,记得更新Users.login()
  82. *
  83. * @param messageId
  84. * @param sessionId
  85. * @param sessionType
  86. * @param message
  87. */
  88. saveMessageToRedis(sessionId, sessionType, messageId, message) {
  89. let sessionKey = RedisModel.makeRedisKey(REDIS_KEYS.Session, sessionId);
  90. let messageKey = RedisModel.makeRedisKey(REDIS_KEYS.Messages, sessionId);
  91. let messageTimestampKey = RedisModel.makeRedisKey(REDIS_KEYS.MessagesByTimestamp, sessionId);
  92. log.info(" message.timestamp = " + message.timestamp);
  93. log.info(" message.sender_id = " + message.sender_id);
  94. log.info(" message.sender_name= " + message.sender_name);
  95. log.info(" message.timestamp.getTime() = " + message.timestamp.getTime());
  96. let msgJson = {
  97. id: message.id,
  98. sender_id: message.sender_id,
  99. sender_name: message.sender_name,
  100. timestamp: message.timestamp.getTime(),
  101. content_type: message.content_type,
  102. content: message.content,
  103. business_type:message.business_type||1
  104. };
  105. redis.multi()
  106. .hset(messageKey, messageId, JSON.stringify(msgJson)) // 保存消息
  107. .zadd(messageTimestampKey, message.timestamp.getTime(), messageId) // 保存消息时间
  108. .execAsync()
  109. .then(function (res) {
  110. Messages.updateLastContent(sessionKey, sessionType, null, message);
  111. SessionRepo.updateSessionLastStatus(message.sender_id,message.sender_name,message.timestamp,message.content,message.content_type,sessionId);
  112. Messages.cleanOutRangeMessage(sessionId); // clean out range messages
  113. })
  114. .catch(function (ex) {
  115. log.error("Save message to redis failed: ", ex);
  116. });
  117. }
  118. /**
  119. *创建session发送session成功
  120. * @param messageId
  121. * @param sessionId
  122. * @param sessionType
  123. * @param message
  124. */
  125. saveMessageToRedisFromCreateSession(sessionId, messageId, message) {
  126. let messageKey = RedisModel.makeRedisKey(REDIS_KEYS.Messages, sessionId);
  127. let messageTimestampKey = RedisModel.makeRedisKey(REDIS_KEYS.MessagesByTimestamp, sessionId);
  128. let msgJson = {
  129. id: message.id,
  130. sender_id: message.sender_id,
  131. sender_name: message.sender_name,
  132. timestamp: message.timestamp.getTime(),
  133. content_type: message.content_type,
  134. content: message.content,
  135. business_type:message.business_type||1
  136. };
  137. redis.multi()
  138. .hset(messageKey, messageId, JSON.stringify(msgJson)) // 保存消息
  139. .zadd(messageTimestampKey, message.timestamp.getTime(), messageId) // 保存消息时间
  140. .execAsync()
  141. .then(function (res) {
  142. Messages.cleanOutRangeMessage(sessionId); // clean out range messages
  143. })
  144. .catch(function (ex) {
  145. log.error("Save message to redis failed: ", ex);
  146. });
  147. }
  148. /**
  149. * 内外网通信。
  150. * 消息内容 存系统表
  151. * @param message
  152. */
  153. sendMessage(message) {
  154. let self = this;
  155. let messages = new Messages();
  156. let messageId = mongoose.Types.ObjectId().toString();
  157. let sessionType =0;
  158. message.id = messageId;
  159. message.session_id = "system";
  160. messages.saveMessageToMysql("system", sessionType, messageId, message, function (err, res) {
  161. if (err) {
  162. ModelUtil.emitError(self.eventEmitter, {message: "Failed to save message to mysql: " + err});
  163. } else {
  164. message.timestamp = message.timestamp.getTime();
  165. let targetUserId = message.sender_name;
  166. //告知医生新消息
  167. WechatClient.sendSocketMessageToDoctor(targetUserId,message);
  168. if(config.environment!='local'){//pc版不推送个推,通过redis的publish
  169. AppClient.sendNotification(targetUserId, message,sessionType,1);
  170. }
  171. //外网pcim通过socket推送
  172. WechatClient.sendPcImSocket(targetUserId,message,sessionType);
  173. //告知居民新消息
  174. WechatClient.sendSocketMessageToPatient(targetUserId,message,sessionType);
  175. //推送居民、居民PC、医生、医生PC外层推送
  176. WechatClient.sendSystemSocketMessage(targetUserId,message,sessionType);
  177. //推送托盘消息
  178. // WechatClient.sendMDTSystemSocketMessage(targetUserId,message,sessionType);
  179. //redis发布消息
  180. if(config.pubSubSwitch) {//接收订阅消息处理开关,本地运行和测试库单独运行时防止用户接收消息2次
  181. pubSub.publish(config.pubChannel,JSON.stringify(message));
  182. }
  183. ModelUtil.emitOK(self.eventEmitter, {status: 200});
  184. }
  185. });
  186. }
  187. /**
  188. * 保存Message 到mysql
  189. * @param message 消息对象
  190. * @param sessionType
  191. * @param messageId
  192. * @param sessionId
  193. * @param handler
  194. * @type type 会话类型,1表示MUC会话,2表示P2P,3表示群会话,4表示临时讨论组
  195. */
  196. saveMessageToMysql(sessionId, sessionType, messageId, message, handler) {
  197. MessageRepo.save(message, sessionType, messageId, sessionId, handler);
  198. }
  199. /**
  200. * 保存Message 到mysql
  201. * @param message 消息对象
  202. * @param sessionType
  203. * @param messageId
  204. * @param sessionId
  205. * @param handler
  206. * @type type 会话类型,1表示MUC会话,2表示P2P,3表示群会话,4表示临时讨论组
  207. */
  208. updateMsgContent(sessionType,sessionId, messageId, content,handler) {
  209. let self = this;
  210. async.waterfall( [
  211. function (callback) {
  212. MessageRepo.selectOneMessage(sessionType, messageId, function (err, res) {
  213. if (err) {
  214. ModelUtil.emitError(self.eventEmitter, {message: "this message not exist,id: " + messageId});
  215. } else {
  216. res[0].CONTENT = content;
  217. // log.info("res[0].timestamp="+res[0].timestamp.getTime());
  218. callback(null,res[0]);
  219. }
  220. })
  221. },
  222. function (messageObj) {
  223. // log.info(" 11messages.timestamp="+messageObj.timestamp.getTime());
  224. let messages = new Messages();
  225. messages.saveMessageToRedis(sessionId, sessionType, messageId, messageObj);
  226. MessageRepo.updateMsgContent(sessionType,sessionId, messageId, content, function (err, res) {
  227. if (err) {
  228. ModelUtil.emitError(self.eventEmitter, {message: "update message content failed: " + err});
  229. } else {
  230. ModelUtil.emitOK(self.eventEmitter, {status: 200,data: content});
  231. }
  232. })
  233. }
  234. ], function (err, res) {
  235. if (err) {
  236. ModelUtil.emitError(self.eventEmitter, "update message content failed:" + err);
  237. }
  238. });
  239. }
  240. /**
  241. * 更新会话最后一条消息
  242. *
  243. * @param sessionKey rediskey
  244. * @param sessionType
  245. * @param name 议题名称
  246. * @param message
  247. * @param businessType
  248. * @returns {*}
  249. */
  250. static updateLastContent(sessionKey, sessionType, name, message) {
  251. redis.hmsetAsync(sessionKey,
  252. "create_date", message.timestamp.getTime(),
  253. "last_content", message.content,
  254. "last_content_type", message.content_type,
  255. "last_sender_id", message.sender_id,
  256. "last_sender_name", message.sender_name
  257. );
  258. /**
  259. * mysql操作分离
  260. */
  261. // let sessionid = sessionKey.replace("sessions:", "");
  262. // SessionRepo.updateSessionLastStatus(message.sender_id,
  263. // message.sender_name,
  264. // message.timestamp,
  265. // message.content,
  266. // message.content_type,
  267. // sessionid, function (err, res) {
  268. // if (err) logger.error("Update session last status failed: ", err);
  269. // });
  270. if (name != null) redis.hsetAsync(sessionKey, "name", name);
  271. if (sessionType != null) redis.hsetAsync(sessionKey, "type", sessionType);
  272. }
  273. /**
  274. * 清理会话中超出范围的消息。
  275. *
  276. * 目前只实现超出1000条数据清理的逻辑,7天前的消息清除逻辑暂不实现。
  277. *
  278. * @param sessionId
  279. */
  280. static cleanOutRangeMessage(sessionId) {
  281. let maxMessageCacheCount = config.sessionConfig.maxMessageCount;
  282. let messageById = this.makeRedisKey(REDIS_KEYS.Messages, sessionId);
  283. let messagesByTimestampKey = this.makeRedisKey(REDIS_KEYS.MessagesByTimestamp, sessionId);
  284. redis.zcardAsync(messagesByTimestampKey).then(function (count) {
  285. if (count > maxMessageCacheCount) {
  286. redis.zrevrangeAsync(messagesByTimestampKey, maxMessageCacheCount, count - maxMessageCacheCount).then(function (idList) {
  287. redis.zremAsync(messagesByTimestampKey, idList).then(function (res) {
  288. redis.hdel(messageById, idList);
  289. })
  290. });
  291. }
  292. });
  293. }
  294. /**
  295. *
  296. * 清洗数据
  297. * @param message
  298. */
  299. dataMessage(sessionId) {
  300. let self = this;
  301. let messagesKey = RedisModel.makeRedisKey(REDIS_KEYS.Messages, sessionId);
  302. let message_timestamp_key = RedisModel.makeRedisKey(REDIS_KEYS.MessagesByTimestamp, sessionId);
  303. MessageRepo.findBySessionId(sessionId, 0, config.sessionConfig.maxMessageCount, null, function (err, messages) {
  304. if (err) {
  305. ModelUtil.emitError(self.eventEmitter, {status: -1, message: "没有找到对应sessionId的聊天记录----"+sessionId});
  306. return;
  307. }
  308. let multi = redis.multi();
  309. if(messages){
  310. messages.forEach(function (message) {
  311. let msgJson = {
  312. id: message.id,
  313. sender_id: message.sender_id,
  314. sender_name: message.sender_name,
  315. timestamp: ObjectUtil.timestampToLong(message.timestamp),
  316. content_type: message.content_type,
  317. content: message.content
  318. };
  319. multi = multi.hset(messagesKey, message.id, JSON.stringify(msgJson))
  320. .zadd(message_timestamp_key, ObjectUtil.timestampToLong(message.timestamp), message.id);
  321. });
  322. }
  323. multi.execAsync()
  324. .then(function (res) {
  325. ModelUtil.emitOK(self.eventEmitter, {status:200,message:"存入redis成功!"});
  326. })
  327. .catch(function (ex) {
  328. log.error("Login failed while caching messages: ", ex);
  329. ModelUtil.emitOK(self.eventEmitter, res);
  330. return;
  331. });
  332. });
  333. }
  334. cleanMessageLastFetchTime(sessionId,userId) {
  335. let self = this;
  336. ParticipantRepo.findLastFetchTime(sessionId,userId,function(err,res){
  337. if (err) {
  338. logger.error(err);
  339. return;
  340. } else {
  341. let last_fetch_time = new Date(res[0].last_fetch_time).getTime();
  342. last_fetch_time = last_fetch_time + 1;
  343. let participantsKey = RedisModel.makeRedisKey(REDIS_KEYS.SessionParticipants, sessionId);
  344. redis.zaddAsync(participantsKey, last_fetch_time, userId)
  345. .then(function (res) {
  346. ModelUtil.emitOK(self.eventEmitter, {status:200,message:"存入redis成功!"});
  347. })
  348. .catch(function (err) {
  349. logger.error("Update participant last fetch time failed: ", err);
  350. ModelUtil.emitOK(self.eventEmitter, res);
  351. return;
  352. });
  353. }
  354. });
  355. }
  356. }
  357. // Expose class
  358. module.exports = Messages;