fix: Re-invite sip rec does not update media (#300)

* fix: Re-invite sip rec does not update media

* fix: Re-invite sip rec does not update media

lib/http-routes/api/create-call.js

@@ -104,7 +104,7 @@ router.post('/', async(req, res) => {
       proxy: `sip:${sbcAddress}`,
       localSdp: ep.local.sdp
     });
-    if (target.auth) opts.auth = this.target.auth;
+    if (target.auth) opts.auth = target.auth;
 
 
     /**

lib/session/siprec-call-session.js

@@ -1,6 +1,7 @@
 const InboundCallSession = require('./inbound-call-session');
 const {createSipRecPayload} = require('../utils/siprec-utils');
 const {CallStatus} = require('../utils/constants');
+const {parseSiprecPayload} = require('../utils/siprec-utils');
 /**
  * @classdesc Subclass of InboundCallSession.  This represents a CallSession that is
  * established for an inbound SIPREC call.
@@ -16,6 +17,32 @@ class SipRecCallSession extends InboundCallSession {
     this.metadata = metadata;
   }
 
+  async _onReinvite(req, res) {
+    try {
+      this.logger.info(req.payload, 'SipRec Re-INVITE payload');
+      const {sdp1: reSdp1, sdp2: reSdp2, metadata: reMetadata} = await parseSiprecPayload(req, this.logger);
+      this.sdp1 = reSdp1;
+      this.sdp2 = reSdp2;
+      this.metadata = reMetadata;
+
+      if (this.ep && this.ep2) {
+        let remoteSdp = this.sdp1.replace(/sendonly/, 'sendrecv');
+        const newSdp1 = await this.ep.modify(remoteSdp);
+        remoteSdp = this.sdp2.replace(/sendonly/, 'sendrecv');
+        const newSdp2 = await this.ep2.modify(remoteSdp);
+        const combinedSdp = await createSipRecPayload(newSdp1, newSdp2, this.logger);
+        res.send(200, {body: combinedSdp});
+        this.logger.info({offer: req.body, answer: combinedSdp}, 'SipRec handling reINVITE');
+      }
+      else {
+        this.logger.info('got SipRec reINVITE but no endpoint and media has not been released');
+        res.send(488);
+      }
+    } catch (err) {
+      this.logger.error(err, 'Error handling reinvite');
+    }
+  }
+
   async answerSipRecCall() {
     try {
       this.ms = this.getMS();

lib/utils/siprec-utils.js

@@ -242,7 +242,8 @@ const createSipRecPayload = (sdp1, sdp2, logger) => {
     .replace(/a=sendonly\r\n/g, '')
     .replace(/a=direction:both\r\n/g, '');
   */
-  return combinedSdp;
+
+  return combinedSdp.replace(/sendrecv/g, 'recvonly');
 };
 
 module.exports = { parseSiprecPayload, createSipRecPayload } ;