bugfix: regression - adding custom headers to refer caused preferred hostname on Refer-To to be lost

Snyk has created this PR to upgrade drachtio-srf from 4.5.0 to 4.5.1.

See this package in npm:
https://www.npmjs.com/package/drachtio-srf

See this project in Snyk:
https://app.snyk.io/org/davehorton/project/be6a10dd-83a0-4fef-a6b9-7dea4a956a5a?utm_source=github&utm_medium=referral&page=upgrade-pr

.eslintrc.json

@@ -8,7 +8,7 @@
       "jsx": false,
       "modules": false
     },
-    "ecmaVersion": 2018
+    "ecmaVersion": 2020
   },
   "plugins": ["promise"],
   "rules": {

Dockerfile

@@ -1,10 +1,23 @@
-FROM node:17.7.1-slim
+FROM --platform=linux/amd64 node:16.15.1-alpine as base
+
+RUN apk --update --no-cache add --virtual .builds-deps build-base python3
+
 WORKDIR /opt/app/
-COPY package.json ./
-RUN npm install
-RUN npm prune
-COPY . /opt/app
+
+FROM base as build
+
+COPY package.json package-lock.json ./
+
+RUN npm ci
+
+COPY . .
+
+FROM base
+
+COPY --from=build /opt/app /opt/app/
+
 ARG NODE_ENV
+
 ENV NODE_ENV $NODE_ENV
 
-CMD [ "npm", "start" ]
+CMD [ "node", "app.js" ]

app.js

@@ -14,6 +14,7 @@ const opts = Object.assign({
 }, {level: process.env.JAMBONES_LOGLEVEL || 'info'});
 const logger = require('pino')(opts);
 const {
+  writeCallCount,
   queryCdrs,
   writeCdrs,
   writeAlerts,
@@ -26,7 +27,7 @@ const {
 });
 const StatsCollector = require('@jambonz/stats-collector');
 const stats = new StatsCollector(logger);
-const {equalsIgnoreOrder} = require('./lib/utils');
+const {equalsIgnoreOrder, createHealthCheckApp, systemHealth} = require('./lib/utils');
 const {LifeCycleEvents} = require('./lib/constants');
 const setNameRtp = `${(process.env.JAMBONES_CLUSTER_ID || 'default')}:active-rtp`;
 const rtpServers = [];
@@ -34,6 +35,7 @@ const setName = `${(process.env.JAMBONES_CLUSTER_ID || 'default')}:active-sip`;
 
 const {
   pool,
+  ping,
   lookupAuthHook,
   lookupSipGatewayBySignalingAddress,
   addSbcAddress,
@@ -49,7 +51,14 @@ const {
   database: process.env.JAMBONES_MYSQL_DATABASE,
   connectionLimit: process.env.JAMBONES_MYSQL_CONNECTION_LIMIT || 10
 }, logger);
-const {createSet, retrieveSet, addToSet, removeFromSet, incrKey, decrKey} = require('@jambonz/realtimedb-helpers')({
+const {
+  client: redisClient,
+  createSet,
+  retrieveSet,
+  addToSet,
+  removeFromSet,
+  incrKey,
+  decrKey} = require('@jambonz/realtimedb-helpers')({
   host: process.env.JAMBONES_REDIS_HOST || 'localhost',
   port: process.env.JAMBONES_REDIS_PORT || 6379
 }, logger);
@@ -61,6 +70,7 @@ const {getRtpEngine, setRtpEngines} = require('@jambonz/rtpengine-utils')([], lo
 });
 srf.locals = {...srf.locals,
   stats,
+  writeCallCount,
   queryCdrs,
   writeCdrs,
   writeAlerts,
@@ -69,6 +79,7 @@ srf.locals = {...srf.locals,
   getRtpEngine,
   dbHelpers: {
     pool,
+    ping,
     lookupAuthHook,
     lookupSipGatewayBySignalingAddress,
     lookupAccountByPhoneNumber,
@@ -138,7 +149,9 @@ if (process.env.DRACHTIO_HOST && !process.env.K8S) {
   });
 }
 else {
-  logger.info(`listening in outbound mode on port ${process.env.DRACHTIO_PORT}`);
+  srf.on('listening', () => {
+    logger.info(`listening in outbound mode on port ${process.env.DRACHTIO_PORT}`);
+  });
   srf.listen({port: process.env.DRACHTIO_PORT, secret: process.env.DRACHTIO_SECRET});
 }
 if (process.env.NODE_ENV === 'test') {
@@ -171,11 +184,31 @@ srf.use((req, res, next, err) => {
   res.send(500);
 });
 
-if (process.env.K8S) {
+if (process.env.K8S || process.env.HTTP_PORT) {
   const PORT = process.env.HTTP_PORT || 3000;
-  const getCount = () => activeCallIds.size;
   const healthCheck = require('@jambonz/http-health-check');
-  healthCheck({port: PORT, logger, path: '/', fn: getCount});
+
+  const getCount = () => srf.locals.activeCallIds.size;
+
+  createHealthCheckApp(PORT, logger)
+    .then((app) => {
+      healthCheck({
+        app,
+        logger,
+        path: '/',
+        fn: getCount
+      });
+      healthCheck({
+        app,
+        logger,
+        path: '/system-health',
+        fn: systemHealth.bind(null, redisClient, ping, getCount)
+      });
+      return;
+    })
+    .catch((err) => {
+      logger.error({err}, 'Error creating health check server');
+    });
 }
 if ('test' !== process.env.NODE_ENV) {
   /* update call stats periodically */

lib/call-session.js

@@ -1,4 +1,5 @@
 const Emitter = require('events');
+const SrsClient = require('./srs-client');
 const {makeRtpEngineOpts, SdpWantsSrtp, makeCallCountKey} = require('./utils');
 const {forwardInDialogRequests} = require('drachtio-fn-b2b-sugar');
 const {parseUri, stringifyUri, SipError} = require('drachtio-srf');
@@ -62,7 +63,10 @@ class CallSession extends Emitter {
       blockDTMF,
       unblockDTMF,
       subscribeDTMF,
-      unsubscribeDTMF
+      unsubscribeDTMF,
+      subscribeRequest,
+      subscribeAnswer,
+      unsubscribe
     } = engine;
     this.offer = offer;
     this.answer = answer;
@@ -73,6 +77,9 @@ class CallSession extends Emitter {
     this.unblockDTMF = unblockDTMF;
     this.subscribeDTMF = subscribeDTMF;
     this.unsubscribeDTMF = unsubscribeDTMF;
+    this.subscribeRequest = subscribeRequest;
+    this.subscribeAnswer = subscribeAnswer;
+    this.unsubscribe = unsubscribe;
 
     const featureServer = await this.getFeatureServer();
     if (!featureServer) {
@@ -171,7 +178,7 @@ class CallSession extends Emitter {
           '-Session-Expires',
           '-X-Subspace-Forwarded-For'
         ],
-        proxyResponseHeaders: ['all'],
+        proxyResponseHeaders: ['all', '-X-Trace-ID'],
         localSdpB: response.sdp,
         localSdpA: async(sdp, res) => {
           this.rtpEngineOpts.uac.tag = res.getParsedHeader('To').params.tag;
@@ -224,6 +231,12 @@ class CallSession extends Emitter {
       this.rtpEngineResource.destroy().catch((err) => {});
       this.activeCallIds.delete(callId);
       if (dlg.other && dlg.other.connected) dlg.other.destroy().catch((e) => {});
+
+      if (this.srsClient) {
+        this.srsClient.stop();
+        this.srsClient = null;
+      }
+
       this.srf.endSession(this.req);
     });
 
@@ -241,22 +254,30 @@ class CallSession extends Emitter {
       this.req.locals.cdr = {
         ...this.req.locals.cdr,
         answered: true,
-        answered_at: callStart
+        answered_at: callStart,
+        trace_id: uac.res?.get('X-Trace-ID') || '00000000000000000000000000000000'
       };
     }
     this.uas = uas;
     this.uac = uac;
     [uas, uac].forEach((dlg) => {
-      dlg.on('destroy', () => {
-        this.logger.info('call ended with normal termination');
+      dlg.on('destroy', async() => {
+        const other = dlg.other;
         this.rtpEngineResource.destroy().catch((err) => {});
         this.activeCallIds.delete(this.req.get('Call-ID'));
-        dlg.other.destroy().catch((e) => {});
+        try {
+          await other.destroy();
+        } catch (err) {}
         this.unsubscribeDTMF(this.logger, this.req.get('Call-ID'), this.rtpEngineOpts.uas.tag);
-        if (process.env.JAMBONES_HOSTING) {
+        if (process.env.JAMBONES_HOSTING || process.env.JAMBONES_TRACK_ACCOUNT_CALLS) {
+          const {account_sid} = this.req.locals;
           this.decrKey(this.callCountKey)
-            .then((count) => this.logger.debug({key: this.callCountKey},
-              `after hangup there are ${count} active calls for this account`))
+            .then((count) => {
+              this.logger.info(
+                {key: this.callCountKey},
+                `after hangup there are ${count} active calls for this account`);
+              return this.req.srf.locals.writeCallCount({account_sid, calls_in_progress: count});
+            })
             .catch((err) => this.logger.error({err}, 'Error decrementing call count'));
         }
 
@@ -274,6 +295,18 @@ class CallSession extends Emitter {
             trunk
           }).catch((err) => this.logger.error({err}, 'Error writing cdr for completed call'));
         }
+        /* de-link the 2 Dialogs for GC */
+        dlg.removeAllListeners();
+        other.removeAllListeners();
+        dlg.other = null;
+        other.other = null;
+
+        if (this.srsClient) {
+          this.srsClient.stop();
+          this.srsClient = null;
+        }
+
+        this.logger.info(`call ended with normal termination, there are ${this.activeCallIds.size} active`);
         this.srf.endSession(this.req);
       });
     });
@@ -398,7 +431,6 @@ Duration=${payload.duration} `
         direction,
         sdp: req.body,
       };
-      //if (reason && opts.flags && !opts.flags.includes('reset')) opts.flags.push('reset');
 
       let response = await this.offer(opts);
       if ('ok' !== response.result) {
@@ -411,6 +443,7 @@ Duration=${payload.duration} `
       if (reason && dlg.type === 'uac' && ['release-media', 'anchor-media'].includes(reason)) {
         this.logger.info({response}, `got a reinvite from FS to ${reason}`);
         sdp = dlg.other.remote.sdp;
+        answerMedia.flags = ['asymmetric', 'port latching'];
       }
       else {
         sdp = await dlg.other.modify(response.sdp);
@@ -435,6 +468,7 @@ Duration=${payload.duration} `
 
   async _onInfo(dlg, req, res) {
     const fromTag = dlg.type === 'uas' ? this.rtpEngineOpts.uas.tag : this.rtpEngineOpts.uac.tag;
+    const toTag = dlg.type === 'uas' ? this.rtpEngineOpts.uac.tag : this.rtpEngineOpts.uas.tag;
     try {
       if (dlg.type === 'uac' && req.has('X-Reason')) {
         const reason = req.get('X-Reason');
@@ -444,16 +478,100 @@ Duration=${payload.duration} `
           'from-tag': fromTag
         };
         this.logger.info(`_onInfo: got request ${reason}`);
-        res.send(200);
 
         if (reason.startsWith('mute')) {
           const response = Promise.all([this.blockMedia(opts), this.blockDTMF(opts)]);
+          res.send(200);
           this.logger.info({response}, `_onInfo: response to rtpengine command for ${reason}`);
         }
         else if (reason.startsWith('unmute')) {
           const response = Promise.all([this.unblockMedia(opts), this.unblockDTMF(opts)]);
+          res.send(200);
           this.logger.info({response}, `_onInfo: response to rtpengine command for ${reason}`);
         }
+        else if (reason.includes('CallRecording')) {
+          let succeeded = false;
+          if (reason === 'startCallRecording') {
+            const from = this.req.getParsedHeader('From');
+            const to = this.req.getParsedHeader('To');
+            const aorFrom = from.uri;
+            const aorTo = to.uri;
+            this.logger.info({to, from}, 'startCallRecording request for a call');
+
+            const srsUrl = req.get('X-Srs-Url');
+            const srsRecordingId = req.get('X-Srs-Recording-ID');
+            const callSid = req.get('X-Call-Sid');
+            const accountSid = req.get('X-Account-Sid');
+            const applicationSid = req.get('X-Application-Sid');
+            if (this.srsClient) {
+              res.send(400);
+              this.logger.info('discarding duplicate startCallRecording request for a call');
+              return;
+            }
+            if (!srsUrl) {
+              this.logger.info('startCallRecording request is missing X-Srs-Url header');
+              res.send(400);
+              return;
+            }
+            this.srsClient = new SrsClient(this.logger, {
+              srf: dlg.srf,
+              originalInvite: this.req,
+              callingNumber: this.req.callingNumber,
+              calledNumber: this.req.calledNumber,
+              srsUrl,
+              srsRecordingId,
+              callSid,
+              accountSid,
+              applicationSid,
+              rtpEngineOpts: this.rtpEngineOpts,
+              fromTag,
+              toTag,
+              aorFrom,
+              aorTo,
+              subscribeRequest: this.subscribeRequest,
+              subscribeAnswer: this.subscribeAnswer,
+              del: this.del,
+              blockMedia: this.blockMedia,
+              unblockMedia: this.unblockMedia,
+              unsubscribe: this.unsubscribe
+            });
+            try {
+              succeeded = await this.srsClient.start();
+            } catch (err) {
+              this.logger.error({err}, 'Error starting SipRec call recording');
+            }
+          }
+          else if (reason === 'stopCallRecording') {
+            if (!this.srsClient) {
+              res.send(400);
+              this.logger.info('discarding stopCallRecording request because we are not recording');
+              return;
+            }
+            try {
+              succeeded = await this.srsClient.stop();
+            } catch (err) {
+              this.logger.error({err}, 'Error stopping SipRec call recording');
+            }
+            this.srsClient = null;
+          }
+          else if (reason === 'pauseCallRecording') {
+            if (!this.srsClient || this.srsClient.paused) {
+              this.logger.info('discarding invalid pauseCallRecording request');
+              res.send(400);
+              return;
+            }
+            succeeded = await this.srsClient.pause();
+          }
+          else if (reason === 'resumeCallRecording') {
+            if (!this.srsClient || !this.srsClient.paused) {
+              res.send(400);
+              this.logger.info('discarding invalid resumeCallRecording request');
+              return;
+            }
+            succeeded = await this.srsClient.resume();
+          }
+          res.send(succeeded ? 200 : 503);
+        }
       }
       else {
         const immutableHdrs = ['via', 'from', 'to', 'call-id', 'cseq', 'max-forwards', 'content-length'];
@@ -469,6 +587,10 @@ Duration=${payload.duration} `
         res.send(response.status, {headers: responseHeaders, body: response.body});
       }
     } catch (err) {
+      if (this.srsClient) {
+        this.srsClient = null;
+      }
+      res.send(500);
       this.logger.info({err}, `Error handing INFO request on ${dlg.type} leg`);
     }
   }
@@ -505,11 +627,19 @@ Duration=${payload.duration} `
         if (e164 && !uri.user.startsWith('+')) {
           uri.user = `+${uri.user}`;
         }
+        // eslint-disable-next-line no-unused-vars
+        const {via, from, to, 'call-id':callid, cseq, 'max-forwards':maxforwards,
+          // eslint-disable-next-line no-unused-vars
+          'content-length':contentlength, 'refer-to':_referto, 'referred-by':_referredby,
+          ...customHeaders
+        } = req.headers;
+
         const response = await this.uas.request({
           method: 'REFER',
           headers: {
             'Refer-To': stringifyUri(uri),
-            'Referred-By': stringifyUri(u)
+            'Referred-By': stringifyUri(u),
+            ...customHeaders
           }
         });
         return res.send(response.status);

lib/db-utils.js

@@ -44,6 +44,10 @@ SELECT * FROM phone_numbers
 WHERE number = ? 
 AND voip_carrier_sid = ?`;
 
+const sqlQueryAllDidsForCarrier = `
+SELECT * FROM phone_numbers 
+WHERE voip_carrier_sid = ?`;
+
 const sqlSelectOutboundGatewayForCarrier = `
 SELECT ipv4, port, e164_leading_plus  
 FROM sip_gateways sg, voip_carriers vc 
@@ -81,9 +85,18 @@ module.exports = (srf, logger) => {
     const did = normalizeDID(req.calledNumber);
 
     try {
+      /* straight DID match */
       const [r] = await pp.query(sqlQueryApplicationByDid, [did, voip_carrier_sid]);
-      if (0 === r.length) return null;
-      return r[0].application_sid;
+      if (r.length) return r[0].application_sid;
+
+      /* wildcard / regex match */
+      const [r2] = await pp.query(sqlQueryAllDidsForCarrier, [voip_carrier_sid]);
+      const match = r2
+        .filter((o) => o.number.match(/\D/))                  // look at anything with non-digit characters
+        .sort((a, b) => b.number.length - a.number.length)    // prefer longest match
+        .find((o) => did.match(new RegExp(o.number.endsWith('*') ? `${o.number.slice(0, -1)}\\d*` : o.number)));
+      if (match) return match.application_sid;
+      return null;
     } catch (err) {
       logger.error({err}, 'getApplicationForDidAndCarrier');
     }

lib/middleware.js

@@ -220,11 +220,11 @@ module.exports = function(srf, logger) {
   };
 
   const checkLimits = async(req, res, next) => {
-    if (!process.env.JAMBONES_HOSTING) return next(); // skip
+    if (!process.env.JAMBONES_HOSTING && !process.env.JAMBONES_TRACK_ACCOUNT_CALLS) return next(); // skip
 
     const {incrKey, decrKey} = req.srf.locals.realtimeDbHelpers;
     const {logger, account_sid} = req.locals;
-    const {writeAlerts, AlertType} = req.srf.locals;
+    const {writeCallCount, writeAlerts, AlertType} = req.srf.locals;
     assert(account_sid);
     const key = makeCallCountKey(account_sid);
 
@@ -233,10 +233,11 @@ module.exports = function(srf, logger) {
       if (status > 200) {
         decrKey(key)
           .then((count) => {
-            logger.debug({key}, `after rejection there are ${count} active calls for this account`);
+            logger.info({key}, `after rejection there are ${count} active calls for this account`);
             debug({key}, `after rejection there are ${count} active calls for this account`);
-            return;
+            return count;
           })
+          .then((count) => writeCallCount({account_sid, calls_in_progress: count}))
           .catch((err) => logger.error({err}, 'checkLimits: decrKey err'));
       }
     });
@@ -244,6 +245,10 @@ module.exports = function(srf, logger) {
     try {
       /* increment the call count */
       const calls = await incrKey(key);
+      writeCallCount({account_sid, calls_in_progress: calls})
+        .then(() => logger.info(`checkLimits: after incrementing there are ${calls} active calls for this account`))
+        .catch((err) => logger.error({err}, 'checkLimits: error writing call count'));
+      if (!process.env.JAMBONES_HOSTING) return next();
 
       /* compare to account's limit, though avoid db hit when call count is low */
       const minLimit = process.env.MIN_CALL_LIMIT ?

lib/srs-client.js

@@ -0,0 +1,249 @@
+const Emitter = require('events');
+const assert = require('assert');
+const transform = require('sdp-transform');
+const { v4: uuidv4 } = require('uuid');
+
+const createMultipartSdp = (sdp, {
+  originalInvite,
+  srsRecordingId,
+  callSid,
+  accountSid,
+  applicationSid,
+  sipCallId,
+  aorFrom,
+  aorTo,
+  callingNumber,
+  calledNumber
+}) => {
+  const sessionId = uuidv4();
+  const uuidStream1 = uuidv4();
+  const uuidStream2 = uuidv4();
+  const participant1 = uuidv4();
+  const participant2 = uuidv4();
+  const sipSessionId = originalInvite.get('Call-ID');
+  const {originator = 'unknown', carrier = 'unknown'} = originalInvite.locals;
+
+  const x = `--uniqueBoundary
+Content-Disposition: session;handling=required
+Content-Type: application/sdp
+
+--sdp-placeholder--
+--uniqueBoundary
+Content-Disposition: recording-session
+Content-Type: application/rs-metadata+xml
+
+<?xml version="1.0" encoding="UTF-8"?>
+<recording xmlns="urn:ietf:params:xml:ns:recording:1">
+  <datamode>complete</datamode>
+  <session session_id="${sessionId}">
+    <sipSessionID>${sipSessionId}</sipSessionID>
+  </session>
+  <extensiondata xmlns:jb="http://jambonz.org/siprec">
+    <jb:callsid>${callSid}</jb:callsid>
+    <jb:accountsid>${accountSid}</jb:accountsid>
+    <jb:applicationsid>${applicationSid}</jb:applicationsid>
+    <jb:recordingid>${srsRecordingId}</jb:recordingid>
+    <jb:originationsource>${originator}</jb:originationsource>
+    <jb:carrier>${carrier}</jb:carrier>
+  </extensiondata>
+  <participant participant_id="${participant1}">
+    <nameID aor="${aorFrom}">
+      <name>${callingNumber}</name>
+    </nameID>
+  </participant>
+  <participantsessionassoc participant_id="${participant1}" session_id="${sessionId}">
+  </participantsessionassoc>
+  <stream stream_id="${uuidStream1}" session_id="${sessionId}">
+    <label>1</label>
+  </stream>
+  <participant participant_id="${participant2}">
+    <nameID aor="${aorTo}">
+      <name>${calledNumber}</name>
+    </nameID>
+  </participant>
+  <participantsessionassoc participant_id="${participant2}" session_id="${sessionId}">
+  </participantsessionassoc>
+  <stream stream_id="${uuidStream2}" session_id="${sessionId}">
+    <label>2</label>
+  </stream>
+  <participantstreamassoc participant_id="${participant1}">
+    <send>${uuidStream1}</send>
+    <recv>${uuidStream2}</recv>
+  </participantstreamassoc>
+  <participantstreamassoc participant_id="${participant2}">
+    <send>${uuidStream2}</send>
+    <recv>${uuidStream1}</recv>
+  </participantstreamassoc>
+</recording>`
+    .replace(/\n/g, '\r\n')
+    .replace('--sdp-placeholder--', sdp);
+
+  return `${x}\r\n`;
+};
+
+class SrsClient extends Emitter {
+  constructor(logger, opts) {
+    super();
+    const {
+      srf,
+      originalInvite,
+      calledNumber,
+      callingNumber,
+      srsUrl,
+      srsRecordingId,
+      callSid,
+      accountSid,
+      applicationSid,
+      srsDestUserName,
+      rtpEngineOpts,
+      //fromTag,
+      toTag,
+      aorFrom,
+      aorTo,
+      subscribeRequest,
+      subscribeAnswer,
+      del,
+      blockMedia,
+      unblockMedia,
+      unsubscribe
+    } = opts;
+    this.logger = logger;
+    this.srf = srf;
+    this.originalInvite = originalInvite;
+    this.callingNumber = callingNumber;
+    this.calledNumber = calledNumber;
+    this.subscribeRequest = subscribeRequest;
+    this.subscribeAnswer = subscribeAnswer;
+    this.del = del;
+    this.blockMedia = blockMedia;
+    this.unblockMedia = unblockMedia;
+    this.unsubscribe = unsubscribe;
+    this.srsUrl = srsUrl;
+    this.srsRecordingId = srsRecordingId;
+    this.callSid = callSid;
+    this.accountSid = accountSid;
+    this.applicationSid = applicationSid;
+    this.srsDestUserName = srsDestUserName;
+    this.rtpEngineOpts = rtpEngineOpts;
+    this.sipRecFromTag = toTag;
+    this.aorFrom = aorFrom;
+    this.aorTo = aorTo;
+
+    /* state */
+    this.activated = false;
+    this.paused = false;
+  }
+
+  async start() {
+    assert(!this.activated);
+
+    const opts = {
+      'call-id': this.rtpEngineOpts.common['call-id'],
+      'from-tag': this.sipRecFromTag
+    };
+
+    let response = await this.subscribeRequest({...opts, label: '1', flags: ['all'], interface: 'public'});
+    if (response.result !== 'ok') {
+      this.logger.error({response}, 'SrsClient:start error calling subscribe request');
+      throw new Error('error calling subscribe request');
+    }
+    this.siprecToTag = response['to-tag'];
+
+    const parsed = transform.parse(response.sdp);
+    parsed.name = 'jambonz SRS';
+    parsed.media[0].label = '1';
+    parsed.media[1].label = '2';
+    this.sdpOffer = transform.write(parsed);
+    const sdp = createMultipartSdp(this.sdpOffer, {
+      originalInvite: this.originalInvite,
+      srsRecordingId: this.srsRecordingId,
+      callSid: this.callSid,
+      accountSid: this.accountSid,
+      applicationSid: this.applicationSid,
+      calledNumber: this.calledNumber,
+      callingNumber: this.callingNumber,
+      aorFrom: this.aorFrom,
+      aorTo: this.aorTo
+    });
+
+    this.logger.info({response}, `SrsClient: sending SDP ${sdp}`);
+
+    /* */
+    try {
+      this.uac = await this.srf.createUAC(this.srsUrl, {
+        headers: {
+          'Content-Type': 'multipart/mixed;boundary=uniqueBoundary',
+        },
+        localSdp: sdp
+      });
+    } catch (err) {
+      this.logger.info({err}, `Error sending SIPREC INVITE to ${this.srsUrl}`);
+      throw err;
+    }
+
+    this.logger.info({sdp: this.uac.remote.sdp}, `SrsClient:start - successfully connected to SRS ${this.srsUrl}`);
+    response = await this.subscribeAnswer({
+      ...opts,
+      sdp: this.uac.remote.sdp,
+      'to-tag': response['to-tag'],
+      label: '2'
+    });
+    if (response.result !== 'ok') {
+      this.logger.error({response}, 'SrsClient:start error calling subscribe answer');
+      throw new Error('error calling subscribe answer');
+    }
+
+    this.activated = true;
+    this.logger.info('successfully established siprec connection');
+    return true;
+  }
+
+  async stop() {
+    assert(this.activated);
+    const opts = {
+      'call-id': this.rtpEngineOpts.common['call-id'],
+      'from-tag': this.sipRecFromTag
+    };
+
+    this.del(opts)
+      //.then((response) => this.logger.debug({response}, 'Successfully stopped siprec media'))
+      .catch((err) => this.logger.info({err}, 'Error deleting siprec media session'));
+    this.uac.destroy().catch(() => {});
+    this.activated = false;
+    return true;
+  }
+
+  async pause() {
+    assert(!this.paused);
+    const opts = {
+      'call-id': this.rtpEngineOpts.common['call-id'],
+      'from-tag': this.sipRecFromTag
+    };
+    try {
+      await this.blockMedia(opts);
+      await this.uac.modify(this.sdpOffer.replace(/sendonly/g, 'inactive'));
+      this.paused = true;
+      return true;
+    } catch (err) {
+      this.logger.info({err}, 'Error pausing siprec media session');
+    }
+    return false;
+  }
+
+  async resume() {
+    assert(this.paused);
+    const opts = {
+      'call-id': this.rtpEngineOpts.common['call-id'],
+      'from-tag': this.sipRecFromTag
+    };
+    try {
+      await this.blockMedia(opts);
+      await this.uac.modify(this.sdpOffer);
+    } catch (err) {
+      this.logger.info({err}, 'Error resuming siprec media session');
+    }
+    return true;
+  }
+}
+
+module.exports = SrsClient;

lib/utils.js

@@ -56,6 +56,26 @@ const equalsIgnoreOrder = (a, b) => {
   return true;
 };
 
+const  systemHealth = async(redisClient, ping, getCount) => {
+  await Promise.all([redisClient.ping(), ping()]);
+  return getCount();
+};
+
+const createHealthCheckApp = (port, logger) => {
+  const express = require('express');
+  const app = express();
+
+  app.use(express.urlencoded({ extended: true }));
+  app.use(express.json());
+
+  return new Promise((resolve) => {
+    app.listen(port, () => {
+      logger.info(`Health check server started at http://localhost:${port}`);
+      resolve(app);
+    });
+  });
+};
+
 module.exports = {
   isWSS,
   SdpWantsSrtp,
@@ -63,5 +83,7 @@ module.exports = {
   makeRtpEngineOpts,
   makeCallCountKey,
   normalizeDID,
-  equalsIgnoreOrder
+  equalsIgnoreOrder,
+  systemHealth,
+  createHealthCheckApp
 };

liveness.sh

@@ -0,0 +1,24 @@
+#!/bin/sh
+
+TCP_SERVER_PORT="${DRACHTIO_PORT:-4000}"
+nc -v -z localhost $TCP_SERVER_PORT
+
+# if last command exited with non zero
+if [ $? != 0 ]
+then
+    exit 1
+fi
+
+HTTP_SERVER_PORT="${HTTP_PORT:-3000}"
+
+printf 'GET /system-health HTTP/1.1\r\nHost: localhost\r\n\r\n' | nc -v localhost 3000 | grep calls
+
+# grep will automatically exit with 1 if string is not matched, however, will leave that call there in case 
+# we pivot to pipe to dev/null
+
+if [ $? != 0 ]
+then
+    exit 1
+fi
+
+exit 0

package.json

@@ -1,6 +1,6 @@
 {
   "name": "sbc-inbound",
-  "version": "v0.7.4",
+  "version": "v0.7.5",
   "main": "app.js",
   "engines": {
     "node": ">= 12.0.0"
@@ -20,36 +20,35 @@
   },
   "scripts": {
     "start": "node app",
-    "test": "NODE_ENV=test JAMBONES_NETWORK_CIDR='127.0.0.1/32' JAMBONES_HOSTING=1 SBC_ACCOUNT_SID=ed649e33-e771-403a-8c99-1780eabbc803 JAMBONES_TIME_SERIES_HOST=127.0.0.1 JAMBONES_MYSQL_HOST=127.0.0.1 JAMBONES_MYSQL_USER=jambones_test JAMBONES_MYSQL_PASSWORD=jambones_test JAMBONES_MYSQL_DATABASE=jambones_test JAMBONES_REDIS_HOST=localhost JAMBONES_REDIS_PORT=16379 JAMBONES_LOGLEVEL=error DRACHTIO_SECRET=cymru DRACHTIO_HOST=127.0.0.1 DRACHTIO_PORT=9060 JAMBONES_RTPENGINES=127.0.0.1:12222 JAMBONES_FEATURE_SERVERS=172.38.0.11 node test/ ",
+    "test": "NODE_ENV=test HTTP_PORT=3050 JAMBONES_NETWORK_CIDR='127.0.0.1/32' JAMBONES_HOSTING=1 SBC_ACCOUNT_SID=ed649e33-e771-403a-8c99-1780eabbc803 JAMBONES_TIME_SERIES_HOST=127.0.0.1 JAMBONES_MYSQL_HOST=127.0.0.1 JAMBONES_MYSQL_USER=jambones_test JAMBONES_MYSQL_PASSWORD=jambones_test JAMBONES_MYSQL_DATABASE=jambones_test JAMBONES_REDIS_HOST=localhost JAMBONES_REDIS_PORT=16379 JAMBONES_LOGLEVEL=info DRACHTIO_SECRET=cymru DRACHTIO_HOST=127.0.0.1 DRACHTIO_PORT=9060 JAMBONES_RTPENGINES=127.0.0.1:12222 JAMBONES_FEATURE_SERVERS=172.38.0.11 node test/ ",
     "coverage": "./node_modules/.bin/nyc --reporter html --report-dir ./coverage npm run test",
     "jslint": "eslint app.js lib"
   },
   "dependencies": {
-    "@jambonz/db-helpers": "^0.6.17",
-    "@jambonz/http-authenticator": "^0.2.0",
+    "@jambonz/db-helpers": "^0.6.18",
+    "@jambonz/http-authenticator": "^0.2.1",
     "@jambonz/http-health-check": "^0.0.1",
-    "@jambonz/realtimedb-helpers": "^0.4.24",
+    "@jambonz/realtimedb-helpers": "^0.4.29",
     "@jambonz/rtpengine-utils": "^0.3.1",
     "@jambonz/stats-collector": "^0.1.6",
-    "@jambonz/time-series": "^0.1.6",
-    "aws-sdk": "^2.1036.0",
+    "@jambonz/time-series": "^0.1.9",
+    "aws-sdk": "^2.1152.0",
     "bent": "^7.3.12",
     "cidr-matcher": "^2.1.1",
-    "debug": "^4.3.3",
+    "debug": "^4.3.4",
     "drachtio-fn-b2b-sugar": "0.0.12",
-    "drachtio-srf": "^4.4.59",
-    "express": "^4.17.1",
-    "husky": "^7.0.4",
-    "pino": "^7.4.1",
-    "rtpengine-client": "^0.2.0",
-    "verify-aws-sns-signature": "^0.0.6",
+    "drachtio-srf": "^4.5.1",
+    "express": "^4.18.1",
+    "pino": "^7.11.0",
+    "sdp-transform": "^2.14.1",
+    "uuid": "^8.3.2",
+    "verify-aws-sns-signature": "^0.0.7",
     "xml2js": "^0.4.23"
   },
   "devDependencies": {
-    "clear-module": "^4.1.1",
     "eslint": "^7.32.0",
     "eslint-plugin-promise": "^4.3.1",
     "nyc": "^15.1.0",
-    "tape": "^4.13.3"
+    "tape": "^4.15.1"
   }
 }

test/db/populate-test-data.sql

@@ -56,5 +56,12 @@ values ('888a5339-c62c-4075-9e19-f4de70a96597', '999c1452-620d-4195-9f19-c9814ef
 insert into phone_numbers (phone_number_sid, number, voip_carrier_sid, account_sid)
 values ('999a5339-c62c-4075-9e19-f4de70a96597', '16173333456', '287c1452-620d-4195-9f19-c9814ef90d78', 'ed649e33-e771-403a-8c99-1780eabbc803');
 
+insert into phone_numbers (phone_number_sid, number, voip_carrier_sid, account_sid)
+values ('29543d4e-d959-4a25-836a-cde7161cd7d5', '1508222*', '287c1452-620d-4195-9f19-c9814ef90d78', 'ed649e33-e771-403a-8c99-1780eabbc803');
+insert into phone_numbers (phone_number_sid, number, voip_carrier_sid, account_sid)
+values ('dddd5c34-feae-4d70-98af-bb4d1f8dc965', '1508*', '287c1452-620d-4195-9f19-c9814ef90d78', 'ed649e33-e771-403a-8c99-1780eabbc803');
+insert into phone_numbers (phone_number_sid, number, voip_carrier_sid, account_sid)
+values ('d458bf7a-bcea-47b2-ac96-66dfc9c5c220', '150822233*', '287c1452-620d-4195-9f19-c9814ef90d78', 'ed649e33-e771-403a-8c99-1780eabbc803');
+
 insert into phone_numbers (phone_number_sid, number, voip_carrier_sid, account_sid)
 values ('f7ad205d-b92f-4363-8160-f8b5216b40d3', '15083871234', '287c1452-620d-4195-9f19-c9814ef90d78', 'd7cc37cb-d152-49ef-a51b-485f6e917089');

test/scenarios/uac-did-regex-match.xml

@@ -0,0 +1,118 @@
+<?xml version="1.0" encoding="ISO-8859-1" ?>
+<!DOCTYPE scenario SYSTEM "sipp.dtd">
+
+<!-- This program is free software; you can redistribute it and/or      -->
+<!-- modify it under the terms of the GNU General Public License as     -->
+<!-- published by the Free Software Foundation; either version 2 of the -->
+<!-- License, or (at your option) any later version.                    -->
+<!--                                                                    -->
+<!-- This program is distributed in the hope that it will be useful,    -->
+<!-- but WITHOUT ANY WARRANTY; without even the implied warranty of     -->
+<!-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the      -->
+<!-- GNU General Public License for more details.                       -->
+<!--                                                                    -->
+<!-- You should have received a copy of the GNU General Public License  -->
+<!-- along with this program; if not, write to the                      -->
+<!-- Free Software Foundation, Inc.,                                    -->
+<!-- 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA             -->
+<!--                                                                    -->
+<!--                 Sipp 'uac' scenario with pcap (rtp) play           -->
+<!--                                                                    -->
+
+<scenario name="UAC with media">
+  <!-- In client mode (sipp placing calls), the Call-ID MUST be         -->
+  <!-- generated by sipp. To do so, use [call_id] keyword.                -->
+  <send retrans="500">
+    <![CDATA[
+
+      INVITE sip:+15082223333@jambonz.org SIP/2.0
+      Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
+      From: sipp <sip:sipp@[local_ip]:[local_port]>;tag=[pid]SIPpTag09[call_number]
+      To: <sip:15082223333@jambonz.org>
+      Call-ID: [call_id]
+      CSeq: 1 INVITE
+      Contact: sip:sipp@[local_ip]:[local_port]
+      Max-Forwards: 70
+      Subject: uac-pcap-carrier-success
+      Content-Type: application/sdp
+      Content-Length: [len]
+
+      v=0
+      o=user1 53655765 2353687637 IN IP[local_ip_type] [local_ip]
+      s=-
+      c=IN IP[local_ip_type] [local_ip]
+      t=0 0
+      m=audio [auto_media_port] RTP/AVP 8 101
+      a=rtpmap:8 PCMA/8000
+      a=rtpmap:101 telephone-event/8000
+      a=fmtp:101 0-11,16
+
+    ]]>
+  </send>
+
+  <recv response="100" optional="true">
+  </recv>
+
+  <recv response="180" optional="true">
+  </recv>
+
+  <!-- By adding rrs="true" (Record Route Sets), the route sets         -->
+  <!-- are saved and used for following messages sent. Useful to test   -->
+  <!-- against stateful SIP proxies/B2BUAs.                             -->
+  <recv response="200" rtd="true" crlf="true">
+  </recv>
+
+  <!-- Packet lost can be simulated in any send/recv message by         -->
+  <!-- by adding the 'lost = "10"'. Value can be [1-100] percent.       -->
+  <send>
+    <![CDATA[
+
+      ACK sip:15082223333@jambonz.org SIP/2.0
+      Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
+      From: sipp <sip:sipp@[local_ip]:[local_port]>;tag=[pid]SIPpTag09[call_number]
+      To: <sip:15082223333@jambonz.org>[peer_tag_param]
+      Call-ID: [call_id]
+      CSeq: 1 ACK
+      Max-Forwards: 70
+      Subject: uac-pcap-carrier-success
+      Content-Length: 0
+
+    ]]>
+  </send>
+
+  <!-- Play a pre-recorded PCAP file (RTP stream)                       -->
+  <nop>
+    <action>
+      <exec play_pcap_audio="pcap/g711a.pcap"/>
+    </action>
+  </nop>
+
+  <!-- Pause briefly      -->
+  <pause milliseconds="3000"/>
+
+  <!-- The 'crlf' option inserts a blank line in the statistics report. -->
+  <send retrans="500">
+    <![CDATA[
+
+      BYE sip:15082223333@jambonz.org SIP/2.0
+      Via: SIP/2.0/[transport] [local_ip]:[local_port];branch=[branch]
+      From: sipp <sip:sipp@[local_ip]:[local_port]>;tag=[pid]SIPpTag09[call_number]
+      To: <sip:15082223333@jambonz.org>[peer_tag_param]
+      Call-ID: [call_id]
+      CSeq: 2 BYE
+      Subject: uac-pcap-carrier-success
+      Content-Length: 0
+
+    ]]>
+  </send>
+
+  <recv response="200" crlf="true">
+  </recv>
+
+  <!-- definition of the response time repartition table (unit is ms)   -->
+  <ResponseTimeRepartition value="10, 20, 30, 40, 50, 100, 150, 200"/>
+
+  <!-- definition of the call length repartition table (unit is ms)     -->
+  <CallLengthRepartition value="10, 50, 100, 500, 1000, 5000, 10000"/>
+
+</scenario>

test/scenarios/uas.xml

@@ -124,7 +124,24 @@
   ]]>
 </send>
 
+<recv request="BYE">
+</recv>
+
+<send next="2">
+  <![CDATA[
+
+    SIP/2.0 200 OK
+    [last_Via:]
+    [last_From:]
+    [last_To:]
+    [last_Call-ID:]
+    [last_CSeq:]
+    Contact: <sip:[local_ip]:[local_port];transport=[transport]>
+    Content-Length: 0
+
+  ]]>
+</send>
+
 <label id="2"/>
 
 </scenario>
-

test/sip-tests.js

@@ -1,8 +1,7 @@
 const test = require('tape');
-const { output, sippUac } = require('./sipp')('test_sbc-inbound');
-const debug = require('debug')('drachtio:sbc-inbound');
-const clearModule = require('clear-module');
-const consoleLogger = {error: console.error, info: console.log, debug: console.log};
+const { sippUac } = require('./sipp')('test_sbc-inbound');
+const bent = require('bent');
+const getJSON = bent('json');
 
 process.on('unhandledRejection', (reason, p) => {
   console.log('Unhandled Rejection at: Promise', p, 'reason:', reason);
@@ -28,12 +27,21 @@ test('incoming call tests', async(t) => {
   
   try {
     await connect(srf);
+
+    let obj = await getJSON('http://127.0.0.1:3050/');
+    t.ok(obj.calls === 0, 'HTTP GET / works (current call count)')
+    obj = await getJSON('http://127.0.0.1:3050/system-health');
+    t.ok(obj.calls === 0, 'HTTP GET /system-health works (health check)')
+
     await sippUac('uac-pcap-carrier-success.xml', '172.38.0.20');
     t.pass('incoming call from carrier completed successfully');
   
     await sippUac('uac-pcap-pbx-success.xml', '172.38.0.21');
     t.pass('incoming call from account-level carrier completed successfully');
   
+    await sippUac('uac-did-regex-match.xml', '172.38.0.20');
+    t.pass('incoming call matched by trailing wildcard *');
+  
     await sippUac('uac-pcap-device-success.xml', '172.38.0.30');
     t.pass('incoming call from authenticated device completed successfully');
   
@@ -55,7 +63,7 @@ test('incoming call tests', async(t) => {
     await waitFor(10);
     const res = await queryCdrs({account_sid: 'ed649e33-e771-403a-8c99-1780eabbc803'});
     console.log(`cdrs: ${JSON.stringify(res)}`);
-    t.ok(6 === res.total, 'successfully wrote 6 cdrs for calls');
+    t.ok(7 === res.total, 'successfully wrote 7 cdrs for calls');
 
     srf.disconnect();
     t.end();