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Feature/queue webhooks (#34)

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* initial changes for queue webhooks

* send queue leave webhook when dequeued

* bugfix: if enqeue task is killed because it is being replaced with new app supplied by LCC, ignore any app returned from the actionHook as LCC takes precedence

* remove leftover merge brackets
This commit is contained in:
Dave Horton
2021-07-31 13:32:40 -04:00
committed by GitHub
parent 02f5efba48
commit 1a2aaf9845
6 changed files with 131 additions and 37 deletions
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52
lib/session/call-session.js
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@@ -1,15 +1,22 @@
const Emitter = require('events');
const fs = require('fs');
const {CallDirection, TaskPreconditions, CallStatus, TaskName} = require('../utils/constants');
const {CallDirection, TaskPreconditions, CallStatus, TaskName, KillReason} = require('../utils/constants');
const moment = require('moment');
const assert = require('assert');
const sessionTracker = require('./session-tracker');
const makeTask = require('../tasks/make_task');
const normalizeJambones = require('../utils/normalize-jambones');
const listTaskNames = require('../utils/summarize-tasks');
const Requestor = require('../utils/requestor');
const BADPRECONDITIONS = 'preconditions not met';
const CALLER_CANCELLED_ERR_MSG = 'Response not sent due to unknown transaction';
const sqlRetrieveQueueEventHook = `SELECT * FROM webhooks
WHERE webhook_sid =
(
SELECT queue_event_hook_sid FROM accounts where account_sid = ?
)`;
/**
* @classdesc Represents the execution context for a call.
* It holds the resources, such as the sip dialog and media server endpoint
@@ -49,6 +56,8 @@ class CallSession extends Emitter {
if (!this.isConfirmCallSession && !this.isSmsCallSession && !this.isAdultingCallSession) {
sessionTracker.add(this.callSid, this);
}
this._pool = srf.locals.dbHelpers.pool;
}
/**
@@ -393,7 +402,7 @@ class CallSession extends Emitter {
}
else {
/* we started a new app on the child leg, but nothing given for parent so hang him up */
this.currentTask.kill();
this.currentTask.kill(this);
}
}
@@ -530,7 +539,7 @@ class CallSession extends Emitter {
this.logger.info({tasks: listTaskNames(tasks)},
`CallSession:replaceApplication reset with ${tasks.length} new tasks, stack depth is ${this.stackIdx}`);
if (this.currentTask) {
this.currentTask.kill();
this.currentTask.kill(this, KillReason.Replaced);
this.currentTask = null;
}
}
@@ -539,7 +548,7 @@ class CallSession extends Emitter {
if (this.isConfirmCallSession) this.logger.debug('CallSession:kill (ConfirmSession)');
else this.logger.info('CallSession:kill');
if (this.currentTask) {
this.currentTask.kill();
this.currentTask.kill(this);
this.currentTask = null;
}
this.tasks = [];
@@ -759,6 +768,41 @@ class CallSession extends Emitter {
return {ms: this.ms, ep: this.ep};
}
/**
* If account was queue event webhook, send notification
* @param {*} obj - data to notify
*/
async performQueueWebhook(obj) {
if (typeof this.queueEventHookRequestor === 'undefined') {
const pp = this._pool.promise();
try {
this.logger.info({accountSid: this.accountSid}, 'performQueueWebhook: looking up account');
const [r] = await pp.query(sqlRetrieveQueueEventHook, this.accountSid);
if (0 === r.length) {
this.logger.info({accountSid: this.accountSid}, 'performQueueWebhook: no webhook provisioned');
this.queueEventHookRequestor = null;
}
else {
this.logger.info({accountSid: this.accountSid, webhook: r[0]}, 'performQueueWebhook: webhook found');
this.queueEventHookRequestor = new Requestor(this.logger, r[0]);
this.queueEventHook = r[0];
}
} catch (err) {
this.logger.error({err, accountSid: this.accountSid}, 'Error retrieving event hook');
this.queueEventHookRequestor = null;
}
}
if (null === this.queueEventHookRequestor) return;
/* send webhook */
const params = {...obj, ...this.callInfo.toJSON()};
this.logger.info({accountSid: this.accountSid, params}, 'performQueueWebhook: sending webhook');
this.queueEventHookRequestor.request(this.queueEventHook, params)
.catch((err) => {
this.logger.info({err, accountSid: this.accountSid, obj}, 'Error sending queue notification event');
});
}
/**
* A conference that the current task is waiting on has just started
* @param {*} opts