metrics

app.js

@@ -69,4 +69,32 @@ app.listen(PORT);
 
 logger.info(`listening for HTTP requests on port ${PORT}, serviceUrl is ${srf.locals.serviceUrl}`);
 
+const sessionTracker = require('./lib/session/session-tracker');
+setInterval(() => {
+  srf.locals.stats.gauge('fs.sip.calls.count', sessionTracker.count);
+}, 5000);
+
+// report freeswitch stats periodically
+const fsOpts = srf.locals.getFreeswitch();
+const mrf = srf.locals.mrf;
+
+async function pollFreeswitch(mrf) {
+  const stats = srf.locals.stats;
+  const ms = await mrf.connect(fsOpts);
+  logger.info({freeswitch: fsOpts}, 'connected to freeswitch for metrics monitoring');
+  setInterval(() => {
+    try {
+      stats.gauge('fs.media.channels.in_use', ms.currentSessions);
+      stats.gauge('fs.media.channels.free', ms.maxSessions - ms.currentSessions);
+      stats.gauge('fs.media.calls_per_second', ms.cps);
+      stats.gauge('fs.media.cpu_idle', ms.cpuIdle);
+    }
+    catch (err) {
+      logger.info(err, 'Error sending media server metrics');
+    }
+  }, 30000);
+}
+
+pollFreeswitch(mrf).catch((err) => logger.error(err, 'Error polling freeswitch'));
+
 module.exports = {srf, logger};

lib/session/call-session.js

@@ -172,6 +172,29 @@ class CallSession extends Emitter {
     sessionTracker.remove(this.callSid);
   }
 
+  normalizeUrl(url, method, auth) {
+    const hook = {
+      url,
+      method
+    };
+    if (auth && auth.username && auth.password) {
+      hook.auth = {
+        username: auth.username,
+        password: auth.password
+      };
+    }
+    if (typeof url === 'string' && url.startsWith('/')) {
+      const baseUrl = this.requestor.baseUrl;
+      hook.url = `${baseUrl}${url}`;
+      if (this.requestor.username && this.requestor.password) {
+        hook.auth = {
+          username: this.requestor.username,
+          password: this.requestor.password
+        };
+      }
+    }
+    return hook;
+  }
   /**
    * This is called when all tasks have completed.  It is not implemented in the superclass
    * but provided as a convenience for subclasses that need to do cleanup at the end of
@@ -536,7 +559,8 @@ class CallSession extends Emitter {
 
     // update calls db
     this.logger.debug(`updating redis with ${JSON.stringify(this.callInfo)}`);
-    this.updateCallStatus(this.callInfo, this.serviceUrl).catch((err) => this.logger.error(err, 'redis error'));
+    this.updateCallStatus(Object.assign({}, this.callInfo), this.serviceUrl)
+      .catch((err) => this.logger.error(err, 'redis error'));
   }
 }
 

lib/tasks/dial.js

@@ -71,7 +71,6 @@ class TaskDial extends Task {
     super(logger, opts);
     this.preconditions = TaskPreconditions.None;
 
-    this.actionHook = this.data.actionHook;
     this.earlyMedia = this.data.answerOnBridge === true;
     this.callerId = this.data.callerId;
     this.dialMusic = this.data.dialMusic;
@@ -128,7 +127,7 @@ class TaskDial extends Task {
       this._installDtmfDetection(cs, this.epOther, this.parentDtmfCollector);
       await this._attemptCalls(cs);
       await this.awaitTaskDone();
-      await this.performAction(Object.assign({}, cs.callInfo, this.results));
+      await this.performAction(this.results);
       this._removeDtmfDetection(cs, this.epOther);
       this._removeDtmfDetection(cs, this.ep);
     } catch (err) {
@@ -280,6 +279,12 @@ class TaskDial extends Task {
             }
           })
           .on('callStatusChange', (obj) => {
+            if (this.results.dialCallStatus !== CallStatus.Completed) {
+              Object.assign(this.results, {
+                dialCallStatus: obj.callStatus,
+                dialCallSid: sd.callSid,
+              });
+            }
             switch (obj.callStatus) {
               case CallStatus.Trying:
                 break;
@@ -303,12 +308,6 @@ class TaskDial extends Task {
                 }
                 break;
             }
-            if (this.results.dialCallStatus !== CallStatus.Completed) {
-              Object.assign(this.results, {
-                dialCallStatus: obj.callStatus,
-                dialCallSid: sd.callSid,
-              });
-            }
           })
           .on('accept', () => {
             this.logger.debug(`Dial:_attemptCalls - we have a winner: ${sd.callSid}`);

lib/tasks/listen.js

@@ -34,6 +34,7 @@ class TaskListen extends Task {
 
     try {
       this.hook = this.normalizeUrl(this.url, 'GET', this.wsAuth);
+      this.logger.debug({hook: this.hook}, 'prepared ws url');
       if (this.playBeep) await this._playBeep(ep);
       if (this.transcribeTask) {
         this.logger.debug('TaskListen:exec - starting nested transcribe task');
@@ -91,12 +92,12 @@ class TaskListen extends Task {
       {sampleRate: this.sampleRate, mixType: this.mixType},
       this.nested ? this.parentTask.sd.callInfo : cs.callInfo.toJSON(),
       this.metadata);
-    if (this.hook.username && this.hook.password) {
+    if (this.hook.auth) {
-      this.logger.debug({username: this.hook.username, password: this.hook.password},
+      this.logger.debug({username: this.hook.auth.username, password: this.hook.auth.password},
         'TaskListen:_startListening basic auth');
       await this.ep.set({
-        'MOD_AUDIO_BASIC_AUTH_USERNAME': this.hook.username,
+        'MOD_AUDIO_BASIC_AUTH_USERNAME': this.hook.auth.username,
-        'MOD_AUDIO_BASIC_AUTH_PASSWORD': this.hook.password
+        'MOD_AUDIO_BASIC_AUTH_PASSWORD': this.hook.auth.password
       });
     }
     await ep.forkAudioStart({

lib/tasks/tag.js

@@ -12,7 +12,7 @@ class TaskTag extends Task {
   async exec(cs) {
     super.exec(cs);
     cs.callInfo.customerData = this.data;
-    this.logger.debug({customerData: this.data}, 'TaskTag:exec set customer data');
+    this.logger.debug({callInfo: cs.callInfo.toJSON()}, 'TaskTag:exec set customer data in callInfo');
   }
 }
 

lib/tasks/task.js

@@ -3,7 +3,6 @@ const debug = require('debug')('jambonz:feature-server');
 const assert = require('assert');
 const {TaskPreconditions} = require('../utils/constants');
 const normalizeJamones = require('../utils/normalize-jamones');
-const makeTask = require('./make_task');
 const specs = new Map();
 const _specData = require('./specs');
 for (const key in _specData) {specs.set(key, _specData[key]);}
@@ -86,9 +85,10 @@ class Task extends Emitter {
 
   async performAction(results, expectResponse = true) {
     if (this.actionHook) {
-      const params = results ? Object.assign(results, this.cs.callInfo) : this.cs.callInfo;
+      const params = results ? Object.assign(results, this.cs.callInfo.toJSON()) : this.cs.callInfo.toJSON();
       const json = await this.cs.requestor.request(this.actionHook, params);
       if (expectResponse && json && Array.isArray(json)) {
+        const makeTask = require('./make_task');
         const tasks = normalizeJamones(this.logger, json).map((tdata) => makeTask(this.logger, tdata));
         if (tasks && tasks.length > 0) {
           this.logger.info({tasks: tasks}, `${this.name} replacing application with ${tasks.length} tasks`);

lib/utils/install-srf-locals.js

@@ -1,12 +1,12 @@
 const ip = require('ip');
 const localIp = ip.address();
 const PORT = process.env.HTTP_PORT || 3000;
+const assert = require('assert');
 
 function installSrfLocals(srf, logger) {
-  if (srf.locals.dbHelpers) return;
+  assert(!srf.locals.dbHelpers);
 
   const {getSBC, getSrf} = require('./sbc-pinger')(logger);
-
   const freeswitch = process.env.JAMBONES_FREESWITCH
     .split(',')
     .map((fs) => {
@@ -15,6 +15,9 @@ function installSrfLocals(srf, logger) {
     });
   logger.info({freeswitch}, 'freeswitch inventory');
 
+  const StatsCollector = require('jambonz-stats-collector');
+  const stats = srf.locals.stats = new StatsCollector(logger);
+
   const {
     lookupAppByPhoneNumber,
     lookupAppBySid,
@@ -51,8 +54,11 @@ function installSrfLocals(srf, logger) {
     serviceUrl: `http://${localIp}:${PORT}`,
     getSBC,
     getSrf,
-    getFreeswitch: () => freeswitch[0]
+    getFreeswitch: () => freeswitch[0],
+    stats: stats
   });
+
+  logger.debug({locals: srf.locals}, 'srf.locals installed');
 }
 
 module.exports = installSrfLocals;

lib/utils/place-outdial.js

@@ -153,7 +153,7 @@ class SingleDialer extends Emitter {
         status.sipStatus = err.status;
         if (err.status === 487) status.callStatus = CallStatus.NoAnswer;
         else if ([486, 600].includes(err.status)) status.callStatus = CallStatus.Busy;
-        this.logger.debug(`SingleDialer:exec outdial failure ${err.status}`);
+        this.logger.info(`SingleDialer:exec outdial failure ${err.status}`);
       }
       else {
         this.logger.error(err, 'SingleDialer:exec');

lib/utils/requestor.js

@@ -31,15 +31,22 @@ class Requestor {
 
     const u = parseUrl(this.url);
     const myPort = u.port ? `:${u.port}` : '';
-    const baseUrl = `${u.protocol}://${u.resource}${myPort}`;
+    const baseUrl = this._baseUrl = `${u.protocol}://${u.resource}${myPort}`;
 
     this.get = bent(baseUrl, 'GET', 'buffer', 200, 201);
     this.post = bent(baseUrl, 'POST', 'buffer', 200, 201);
 
+    this.username = hook.username;
+    this.password = hook.password;
+
     assert(isAbsoluteUrl(this.url));
     assert(['GET', 'POST'].includes(this.method));
   }
 
+  get baseUrl() {
+    return this._baseUrl;
+  }
+
   /**
    * Make an HTTP request.
    * All requests use json bodies.
@@ -61,11 +68,11 @@ class Requestor {
     assert.ok, (['GET', 'POST'].includes(method), `Requestor:request method must be 'GET' or 'POST' not ${method}`);
 
 
-    this.logger.debug({hook}, `Requestor:request ${method} ${url}`);
+    this.logger.debug({hook, params}, `Requestor:request ${method} ${url}`);
     const buf = isRelativeUrl(url) ?
       await this.post(url, params, this.authHeader) :
       await bent(method, 'buffer', 200, 201)(url, params, basicAuth(username, password));
-    //this.logger.debug({body: }, `Requestor:request ${method} ${url} succeeded`);
+    this.logger.debug(`Requestor:request ${method} ${url} succeeded`);
 
     if (buf && buf.toString().length > 0) {
       try {

package.json

@@ -30,25 +30,26 @@
     "debug": "^4.1.1",
     "drachtio-fn-b2b-sugar": "0.0.12",
     "drachtio-fsmrf": "^1.5.14",
-    "drachtio-srf": "^4.4.27",
+    "drachtio-srf": "^4.4.28",
     "express": "^4.17.1",
     "ip": "^1.1.5",
     "jambonz-db-helpers": "^0.3.2",
-    "jambonz-realtimedb-helpers": "0.1.7",
+    "jambonz-realtimedb-helpers": "^0.1.7",
+    "jambonz-stats-collector": "^0.0.3",
     "moment": "^2.24.0",
     "parse-url": "^5.0.1",
-    "pino": "^5.14.0"
+    "pino": "^5.16.0"
   },
   "devDependencies": {
     "blue-tape": "^1.0.0",
     "clear-module": "^4.0.0",
-    "eslint": "^6.7.2",
+    "eslint": "^6.8.0",
     "eslint-plugin-promise": "^4.2.1",
     "jsdoc": "^3.6.3",
     "nyc": "^14.1.1",
-    "tap": "^14.10.2",
+    "tap": "^14.10.6",
     "tap-dot": "^2.0.0",
     "tap-spec": "^5.0.0",
-    "tape": "^4.11.0"
+    "tape": "^4.13.0"
   }
 }