initial support for conference and queues

lib/session/call-session.js

@@ -204,6 +204,8 @@ class CallSession extends Emitter {
   }
 
   trackTmpFile(path) {
+    // TODO: don't add if its already in the list (should we make it a set?)
+    this.logger.debug(`adding tmp file to track ${path}`);
     this.tmpFiles.add(path);
   }
 
@@ -477,6 +479,7 @@ class CallSession extends Emitter {
       const ep = await this.ms.createEndpoint({remoteSdp: this.req.body});
       ep.cs = this;
       this.ep = ep;
+      await ep.set('hangup_after_bridge', false);
 
       this.logger.debug('allocated endpoint');
 
@@ -534,6 +537,8 @@ class CallSession extends Emitter {
       return;
     }
     this.ep = await this.ms.createEndpoint({remoteSdp: this.dlg.remote.sdp});
+    await this.ep.set('hangup_after_bridge', false);
+
     await this.dlg.modify(this.ep.local.sdp);
     this.logger.debug('CallSession:replaceEndpoint completed');
     return this.ep;
@@ -631,6 +636,7 @@ class CallSession extends Emitter {
     }
     if (!this.ep) {
       this.ep = await this.ms.createEndpoint({remoteSdp: this.req.body});
+      await this.ep.set('hangup_after_bridge', false);
     }
     return {ms: this.ms, ep: this.ep};
   }
@@ -639,12 +645,32 @@ class CallSession extends Emitter {
    * A conference that the current task is waiting on has just started
    * @param {*} opts
    */
-  notifyStartConference(opts) {
+  notifyConferenceEvent(opts) {
     if (this.currentTask && typeof this.currentTask.notifyStartConference === 'function') {
       this.currentTask.notifyStartConference(this, opts);
     }
   }
 
+  /**
+   * Notify a session in an Enqueue task of an event
+   * @param {*} opts
+   */
+  notifyEnqueueEvent(opts) {
+    if (this.currentTask && typeof this.currentTask.notifyQueueEvent === 'function') {
+      this.currentTask.notifyQueueEvent(this, opts);
+    }
+  }
+
+  /**
+   * Notify a session in a Dequeue task of an event
+   * @param {*} opts
+   */
+  notifyDequeueEvent(opts) {
+    if (this.currentTask && typeof this.currentTask.notifyQueueEvent === 'function') {
+      this.currentTask.notifyQueueEvent(this, opts);
+    }
+  }
+
   /**
    * Transfer the call to another feature server
    * @param {uri} sip uri to refer the call to
@@ -656,7 +682,8 @@ class CallSession extends Emitter {
       method: 'REFER',
       headers: {
         'Refer-To': referTo,
-        'Referred-By': `sip:${this.srf.locals.localSipAddress}`
+        'Referred-By': `sip:${this.srf.locals.localSipAddress}`,
+        'X-Retain-Call-Sid': this.callSid
       }
     });
     return [200, 202].includes(res.status);