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+# Trigger a PagerDuty incident from a phone call
+
+This is not an officially supported PagerDuty product, and not covered by our SLA.  But I do work for PagerDuty, so feel free to [email me](mailto:dave@pagerduty.com) about it.
+
+# Requirements
+
+1. Set up a [PagerDuty account](http://www.pagerduty.com/pricing) if you don't already have one, and create a Generic API service.  We'll use the Service API key.
+2. You'll need to set up a Google App Engine account, and create an application.  We'll use the application identifier.
+3. Change the "application: pdtestthrough" line in app.yaml to your application identifier, and the SERVICE_KEY = "6f4d18600a9b012f6a9722000a9040cf" line in main.py to your service API key
+4. Deploy to [Google App Engine](https://appengine.google.com)
+5. Create a [Twilio](http://twilio.com) account, and set up an incoming phone number to point to http://[your-application-identifier].appspot.com/call
+6. Call that number and leave a message.
+
+# Walkthrough
+
+!(help/TwilioConfig.png)
+
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diff --git a/main.py b/main.py
index 7ece9e1..2d7a81b 100644
--- a/main.py
+++ b/main.py
@@ -1,13 +1,14 @@
-
+# PagerDuty incidents triggered by phone: 
 import logging
 from urllib2 import Request, urlopen, URLError, HTTPError
 import urllib
 from django.utils import simplejson as json
-
 from google.appengine.ext import webapp
 from google.appengine.ext.webapp import util
 
+SERVICE_KEY = "6f4d18600a9b012f6a9722000a9040cf"
 
+#Half of the code is just dedicated to URL shortening, so that we can fit the MP3's URL in an SMS:
 def shorten(url):
     gurl = 'http://goo.gl/api/url?url=%s' % urllib.unquote(url)
     req = Request(gurl, data='')
@@ -17,13 +18,14 @@ def shorten(url):
       res = urlopen(req)
       results = json.load(res)
       logging.info( res.code )
-    except HTTPError, e: #triggers on code 201
+    except HTTPError, e: #triggers on HTTP code 201
       logging.info( e.code )
       error_content = e.read() 
       results = json.JSONDecoder().decode(error_content)
       
     return results['short_url']
 
+# Outbput the TwilML to record a message and pass it to /record
 class CallHandler(webapp.RequestHandler):
   def get(self):
     response = ("<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
@@ -32,24 +34,22 @@ def get(self):
       "<Say>I did not receive a recording</Say></Response>")
     self.response.out.write(response)
     logging.info('Recieved CALL ' + self.request.query_string)
+
+# Shorten the URL and trigger a PD incident with it
 class RecordHandler(webapp.RequestHandler):
   def get(self):
     response = ("<?xml version=\"1.0\" encoding=\"UTF-8\"?><Response><Say>Thanks.  Directing your message to the agent on call.</Say></Response>")
     self.response.out.write(response)
-    logging.info('Recieved RECORDING0 ' + self.request.query_string)
+    logging.info('Recieved RECORDING: ' + self.request.query_string)
     recUrl = self.request.get("RecordingUrl")
     phonenumber = self.request.get("From")
-    
-    
-    logging.info('Recieved RECORDING1 ' + recUrl)
+
+    logging.info('Recieved RECORDING ' + recUrl)
     if(recUrl):
       logging.info('Found recording!')
     else:
       recUrl = "http%3A%2F%2Fwww.pagerduty.com%2F"
       phonenumber = ""
-
-    logging.info('Recieved RECORDING2 ' + recUrl)
-
     shrten = "Error"
     
     try:
@@ -64,21 +64,32 @@ def get(self):
     logging.info('Shortened to: ' + shrten)
   
     # Obviously use your own key:
-    incident = '{"service_key": "6f4d18600a9b012f6a9722000a9040cf","incident_key": "%s","event_type": "trigger","description": "%s %s"}'%(shrten,shrten,phonenumber)
+    incident = '{"service_key": "%s","incident_key": "%s","event_type": "trigger","description": "%s %s"}'%(SERVICE_KEY,shrten,shrten,phonenumber)
     try:
       r = Request("http://events.pagerduty.com/generic/2010-04-15/create_event.json", incident) #Note according to the API this should be retried on failure
       results = urlopen(r)
+      logging.info(incident)
       logging.info(results)
     except HTTPError, e:
       logging.warn( e.code )
     except URLError, e:
       logging.warn(e.reason)   
 
+class IndexHandler(webapp.RequestHandler):
+  def get(self):
+    response = ("<html><h1>Trigger a <a href='http://www.pagerduty.com'>PagerDuty</a> incident from a phone call</h1><ul>"
+      "<li><a href='http://blog.pagerduty.com/2012/02/23/triggering-an-alert-from-a-phone-call'>Docs</a>"
+      "<li><a href='https://github.com/eurica/PagerDutyCallDesk/'>GitHub page</a>"
+      "<li><a href='/call'>/call</a> (returns XML)"
+      "<li><a href='/record?RecordingUrl=http%3A%2F%2Fapi.twilio.com%2F2010-04-01%2FAccounts%2FACfdf710462c058abf3a987f393e8e9bc8%2FRecordings%2FRE6f523cd7734fa86e56e5ef0ea5ffd4cf'>/record</a> (test with 'Hey this is Jim...')"
+      "</ul>Remember to change the application identifier and the service API key, or else you'll just alert me :)</html>")
+    self.response.out.write(response)
 
 def main():
   application = webapp.WSGIApplication([
                                     ('/call', CallHandler),
-                                    ('/record', RecordHandler)],
+                                    ('/record', RecordHandler),
+                                    ('/', IndexHandler)],
                                        debug=True)
   util.run_wsgi_app(application)