Using Google App Engine for quick visitor tracking via XMPP

app.yaml

application: <APPID>
version: 1
runtime: python
api_version: 1

handlers:
- url: /qt.js
  static_files: qt.js
  upload: qt.js

- url: /qt.*
  script: qt.py

COPYING

Files in this Gist are written by Yu-Jie Lin and placed in Public Domain.

qt.js

// Written by Yu-Jie Lin

$(function(){
  var data = {
    url: location.href,
    referrer: document.referrer
    };

  var qs = '';
  $.each(data, function(k, v){
    qs += '&' + encodeURIComponent(k) + '=' + encodeURIComponent(v);
    });
  
  $.getJSON('http://<APPID>.appspot.com/qt.json?callback=?' + qs, function(data){
    // nothing returned, nothing to do;
    });
  });

qt.py

# Written by Yu-Jie Lin

import logging

from google.appengine.api import xmpp
from google.appengine.ext import webapp
from google.appengine.ext.webapp.util import run_wsgi_app

EMAIL = '<EMAIL ADDRESS>'

class QuickTrackJSON(webapp.RequestHandler):

  def get(self):

    user_address = EMAIL
    chat_message_sent = False
    
    kv = [('ip', self.request.remote_addr)]

    keys = ('url', 'referrer')
    kv += map(lambda key: (key, self.request.get(key)), keys)

    keys = ('X-AppEngine-Country', 'X-AppEngine-Region', 'X-AppEngine-City')
    kv += [('Geo', '/'.join(list(self.request.headers.get(key, '') for key in keys)))]

    kv = map(lambda pair: '%s = %s' % pair, kv)
    msg = ', '.join(kv)

    if xmpp.send_message(user_address, msg) != xmpp.NO_ERROR:
      logging.error('XMPP message cannot be sent')

    self.response.headers.add_header('Content-Type', 'application/javascript')
    self.response.out.write(self.request.get('callback') + '({});')


class QuickTrackInvitePage(webapp.RequestHandler):

  def get(self):

    xmpp.send_invite(EMAIL)

    self.response.headers.add_header('Content-Type', 'text/plain')
    self.response.out.write('invite sent')


application = webapp.WSGIApplication([
    ('/qt.json', QuickTrackJSON),
    ('/qt-invite', QuickTrackInvitePage),
    ],
    debug=True)
    

def main():
  run_wsgi_app(application)


if __name__ == "__main__":
  main()