allow proxy in dial verb

lib/tasks/dial.js

@@ -83,6 +83,7 @@ class TaskDial extends Task {
     this.confirmHook = this.data.confirmHook;
     this.confirmMethod = this.data.confirmMethod;
     this.dtmfHook = this.data.dtmfHook;
+    this.proxy = this.data.proxy;
 
     if (this.dtmfHook) {
       const {parentDtmfCollector, childDtmfCollector} = parseDtmfOptions(logger, this.data.dtmfCapture || {});
@@ -245,7 +246,7 @@ class TaskDial extends Task {
     const {req, srf} = cs;
     const {getSBC} = srf.locals;
     const {lookupTeamsByAccount} = srf.locals.dbHelpers;
-    const sbcAddress = getSBC();
+    const sbcAddress = this.proxy || getSBC();
     const teamsInfo = {};
 
     if (!sbcAddress) throw new Error('no SBC found for outbound call');

lib/tasks/dialogflow/index.js

@@ -83,6 +83,9 @@ class Dialogflow extends Task {
       this.ep.removeCustomEventListener('dialogflow::end_of_utterance');
       this.ep.removeCustomEventListener('dialogflow::error');
 
+      this.performAction({dialogflowResult: 'caller hungup'})
+        .catch((err) => this.logger.error({err}, 'dialogflow - error w/ action webook'));
+
       await this.ep.api('uuid_break', this.ep.uuid).catch((err) => this.logger.info(err, 'Error killing audio'));
     }
     this.notifyTaskDone();
@@ -97,7 +100,8 @@ class Dialogflow extends Task {
       this.ep.addCustomEventListener('dialogflow::end_of_utterance', this._onEndOfUtterance.bind(this, ep, cs));
       this.ep.addCustomEventListener('dialogflow::error', this._onError.bind(this, ep, cs));
 
-      const creds = JSON.stringify(JSON.parse(this.credentials));
+      const obj = typeof this.credentials === 'string' ? JSON.parse(this.credentials) : this.credentials;
+      const creds = JSON.stringify(obj);
       await this.ep.set('GOOGLE_APPLICATION_CREDENTIALS', creds);
 
     } catch (err) {

lib/tasks/specs.json

@@ -112,6 +112,7 @@
       "target": ["#target"],
       "timeLimit": "number",
       "timeout": "number",
+      "proxy": "string",
       "transcribe": "#transcribe"
     },
     "required": [
@@ -120,7 +121,7 @@
   },
   "dialogflow": {
     "properties": {
-      "credentials": "string",
+      "credentials": "object|string",
       "project": "string",
       "lang": "string",
       "actionHook": "object|string",
@@ -188,6 +189,7 @@
       "from": "string",
       "speech_synthesis_vendor": "string",
       "speech_synthesis_voice": "string",
+      "speech_synthesis_language": "string",
       "speech_recognizer_vendor": "string",
       "speech_recognizer_language": "string",
       "tag": "object",