brettlangdon
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tracking-server-examples
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Brett Langdon 13 years ago
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  1. +47
    -0
      1_simple/tracking_server.py
  2. +51
    -0
      2_search/tracking_server.py
  3. +66
    -0
      3_cookies/tracking_server.py
  4. +91
    -0
      4_cachebuster/tracking_server.py
  5. +31
    -0
      README.md

+ 47
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1_simple/tracking_server.py View File

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from wsgiref.simple_server import make_server
def tracking_server(environ, respond):
"""Function used to handle all requests made to
this tracking server
"""
if environ['PATH_INFO'] == '/track.js':
return track_user(environ, respond)
elif environ['PATH_INFO'] == '/favicon.ico':
respond('204 NO CONTENT', [])
return ['']
else:
return html_content(environ, respond)
def track_user(environ, respond):
"""Function used to handle the route: /track.js
This will print environ information about the user
to stdout and return back an empty string
"""
headers = [('Content-Type', 'application/javascript')]
respond('200 OK', headers)
prefixes = ['PATH_', 'HTTP', 'REQUEST', 'QUERY']
for key, value in environ.iteritems():
if any(key.startswith(prefix) for prefix in prefixes):
print '%s: %s' % (key, value)
return ['']
def html_content(environ, respond):
"""Function used to handle any route that is not /track.js
This will return to the user a very basic html page that has
a script that to call /track.js
"""
headers = [('Content-Type', 'text/html')]
respond('200 OK', headers)
return ['<html><head></head><body><h2>Welcome</h2><script src="/track.js"></script></body></html>\n']
if __name__ == '__main__':
try:
httpd = make_server('', 8000, tracking_server)
print 'Tracking Server Listening on Port 8000...'
httpd.serve_forever()
except KeyboardInterrupt:
print 'Exiting...'

+ 51
- 0
2_search/tracking_server.py View File

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from urllib import quote
from urlparse import parse_qs
from wsgiref.simple_server import make_server
def tracking_server(environ, respond):
"""Function used to handle all requests made to
this tracking server
"""
if environ['PATH_INFO'] == '/track.js':
return track_user(environ, respond)
elif environ['PATH_INFO'] == '/favicon.ico':
respond('204 NO CONTENT', [])
return ['']
else:
return html_content(environ, respond)
def track_user(environ, respond):
"""Function used to handle the route: /track.js
This will also print what the user searched for
to stdout
"""
query = parse_qs(environ['QUERY_STRING'])
search = query.get('s', [''])[0]
print 'User Searched For: %s' % search
headers = [('Content-Type', 'application/javascript')]
respond('200 OK', headers)
return ['']
def html_content(environ, respond):
"""Function used to handle any route that is not /track.js
This will return to the user a very basic html page that has
a script that to call /track.js?s=<SEARCH> with the content
of the ?search= parameter to this request.
"""
query = parse_qs(environ['QUERY_STRING'])
search = quote(query.get('search', [''])[0])
headers = [('Content-Type', 'text/html')]
respond('200 OK', headers)
return ['<html><head></head><body><h2>Welcome</h2><script src="/track.js?s=%s"></script></body></html>\n' % search]
if __name__ == '__main__':
try:
httpd = make_server('', 8000, tracking_server)
print 'Tracking Server Listening on Port 8000...'
httpd.serve_forever()
except KeyboardInterrupt:
print 'Exiting...'

+ 66
- 0
3_cookies/tracking_server.py View File

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from Cookie import SimpleCookie
from urllib import quote
from urlparse import parse_qs
from uuid import uuid4
from wsgiref.simple_server import make_server
def tracking_server(environ, respond):
"""Function used to handle all requests made to
this tracking server
"""
if environ['PATH_INFO'] == '/track.js':
return track_user(environ, respond)
elif environ['PATH_INFO'] == '/favicon.ico':
respond('204 NO CONTENT', [])
return ['']
else:
return html_content(environ, respond)
def track_user(environ, respond):
"""Function used to handle the route: /track.js
This will check to make sure that the user
has a cookie id=<USER_ID>, if not then we will
generate a new uuid4 id for them and set the
cookie.
This will also print to stdout when we generate
a new cookie as well as what the user searched for.
"""
cookies = SimpleCookie()
cookies.load(environ.get('HTTP_COOKIE', ''))
user_id = cookies.get('id')
if not user_id:
user_id = uuid4()
print 'User did not have id, giving: %s' % user_id
query = parse_qs(environ['QUERY_STRING'])
search = query.get('s', [''])[0]
print 'User %s Searched For: %s' % (user_id, search)
headers = [('Content-Type', 'application/javascript'),
('Set-Cookie', 'id=%s' % user_id)]
respond('200 OK', headers)
return ['']
def html_content(environ, respond):
"""Function used to handle any route that is not /track.js
This will return to the user a very basic html page that has
a script that to call /track.js?s=<SEARCH> with the content
of the ?search= parameter to this request.
"""
query = parse_qs(environ['QUERY_STRING'])
search = quote(query.get('search', [''])[0])
headers = [('Content-Type', 'text/html')]
respond('200 OK', headers)
return ['<html><head></head><body><h2>Welcome</h2><script src="/track.js?s=%s"></script></body></html>\n' % search]
if __name__ == '__main__':
try:
httpd = make_server('', 8000, tracking_server)
print 'Tracking Server Listening on Port 8000...'
httpd.serve_forever()
except KeyboardInterrupt:
print 'Exiting...'

+ 91
- 0
4_cachebuster/tracking_server.py View File

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from Cookie import SimpleCookie
from urlparse import parse_qs
from uuid import uuid4
from wsgiref.simple_server import make_server
def tracking_server(environ, respond):
"""Function used to handle all requests made to
this tracking server
"""
if environ['PATH_INFO'] == '/track.js':
return track_user(environ, respond)
elif environ['PATH_INFO'] == '/buster.js':
return cache_buster(environ, respond)
elif environ['PATH_INFO'] == '/favicon.ico':
respond('204 NO CONTENT', [])
return ['']
else:
return html_content(environ, respond)
def track_user(environ, respond):
"""Function used to handle the route: /track.js
This will check to make sure that the user
has a cookie id=<USER_ID>, if not then we will
generate a new uuid4 id for them and set the
cookie.
This will also print to stdout when we generate
a new cookie as well as what the user searched for.
"""
cookies = SimpleCookie()
cookies.load(environ.get('HTTP_COOKIE', ''))
if not cookies.get('id'):
user_id = uuid4()
print 'User did not have id, giving: %s' % user_id
else:
user_id = cookies['id'].value
query = parse_qs(environ['QUERY_STRING'])
search = query.get('s', [''])[0]
print 'User %s Searched For: %s' % (user_id, search)
headers = [('Content-Type', 'application/javascript'),
('Set-Cookie', 'id=%s' % user_id)]
respond('200 OK', headers)
return ['']
def cache_buster(environ, respond):
"""Function used to handle the /buster.js route
This will simply return our cache buster javascript
to the user, which adds a script tag to call /track.js
"""
headers = [('Content-Type', 'application/javascript')]
respond('200 OK', headers)
cb_js = """
function getParameterByName(name){
name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
var regexS = "[\\?&]" + name + "=([^&#]*)";
var regex = new RegExp(regexS);
var results = regex.exec(window.location.search);
if(results == null)
return "";
else
return decodeURIComponent(results[1].replace(/\+/g, " "));
}
var now = new Date().getTime();
var random = Math.random() * 99999999999;
var search = getParameterByName('search');
document.write('<script src="/track.js?t=' + now + '&r=' + random + '&s=' + search + '"></script>');
"""
return [cb_js]
def html_content(environ, respond):
"""Function used to handle any route that is not /track.js
This will return to the user a very basic html page that has
a script that to call our /buster.js script
"""
headers = [('Content-Type', 'text/html')]
respond('200 OK', headers)
return ['<html><head></head><body><h2>Welcome</h2><script src="/buster.js"></script></body></html>\n']
if __name__ == '__main__':
try:
httpd = make_server('', 8000, tracking_server)
print 'Tracking Server Listening on Port 8000...'
httpd.serve_forever()
except KeyboardInterrupt:
print 'Exiting...'

+ 31
- 0
README.md View File

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Tracking Server Examples
========================
This repository contains the code examples to follow along with the blog post [Third Party Tracking Pixels](http://brett.is/writing/about/third-party-tracking-pixels)
by [Brett Langdon](http://brett.is).
Each example provided builds upon the previous examples code.
## License
The MIT License (MIT)
Copyright (c) 2013 Brett Langdon <brett@blangdon.com>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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