screeley/proxy.py

## proxy.py
#!/usr/bin/env python
"""Proxy"""
import urllib
import json

import tornado.httpserver
import tornado.ioloop
import tornado.web
import tornado.wsgi
import tornado.httpclient

HTML = """
<!DOCTYPE html>
<html>
<head>
  <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script>
</head>
<body>
  <form method="GET">
    <input id="id_url" type="text" name="url" />
    <input id="id_submit" type="submit" value="Submit" />
  </form>
  <script>
    $(document).ready(function(){
      $('form').bind('submit', function(e){
        e.preventDefault();
        $.ajax({
          url: '/proxy',
          data: $(this).serialize(),
          success: function(data){
            alert('{\\n'+$.map(data, function(v,n){return '\\t'+n+' : '+v+','}).join('\\n')+'\\n}');
          },
          dataType: 'json'
        });
      });
    });
  </script>
</body>
</html>
"""
class MainHandler(tornado.web.RequestHandler):
    def get(self):
        self.write(HTML)

class ProxyHandler(tornado.web.RequestHandler):

    @tornado.web.asynchronous
    def get(self):
        #Get the url out of the request arguement
        url = self.get_argument('url')

        #create data
        data = {
            'key' : ':key', #your API key
            'maxwidth' : 500,
            'frame' : 'true',
            'secure' : 'true',
            'autoplay' : 'true',
            'url' : url
        }

        #Create the Fetch URL
        fetch_url = 'http://api.embed.ly/1/preview?%s' % urllib.urlencode(data)

        http = tornado.httpclient.AsyncHTTPClient()
        http.fetch(fetch_url, self._metadata_callback)

    def _metadata_callback(self, response):
        #Load the content as json
        data = json.loads(response.body)

        def clean(value):
            #Make sure there is no malicious values
            return value

        #Here is where you could clean values
        for name, value in data.items():
            data[name] = clean(value)

        self.write(json.dumps(data))
        self.finish();

url_mapping = [
    (r"/", MainHandler),
    (r"/proxy", ProxyHandler),
]

if __name__ == "__main__":
    application = tornado.web.Application(url_mapping, {'debug':True})
    http_server = tornado.httpserver.HTTPServer(application, xheaders=True)
    http_server.listen(8000)
    tornado.ioloop.IOLoop.instance().start()
	#!/usr/bin/env python
	"""Proxy"""
	import urllib
	import json

	import tornado.httpserver
	import tornado.ioloop
	import tornado.web
	import tornado.wsgi
	import tornado.httpclient

	HTML = """
	<!DOCTYPE html>
	<html>
	<head>
	<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script>
	</head>
	<body>
	<form method="GET">
	<input id="id_url" type="text" name="url" />
	<input id="id_submit" type="submit" value="Submit" />
	</form>
	<script>
	$(document).ready(function(){
	$('form').bind('submit', function(e){
	e.preventDefault();
	$.ajax({
	url: '/proxy',
	data: $(this).serialize(),
	success: function(data){
	alert('{\\n'+$.map(data, function(v,n){return '\\t'+n+' : '+v+','}).join('\\n')+'\\n}');
	},
	dataType: 'json'
	});
	});
	});
	</script>
	</body>
	</html>
	"""
	class MainHandler(tornado.web.RequestHandler):
	def get(self):
	self.write(HTML)

	class ProxyHandler(tornado.web.RequestHandler):

	@tornado.web.asynchronous
	def get(self):
	#Get the url out of the request arguement
	url = self.get_argument('url')

	#create data
	data = {
	'key' : ':key', #your API key
	'maxwidth' : 500,
	'frame' : 'true',
	'secure' : 'true',
	'autoplay' : 'true',
	'url' : url
	}

	#Create the Fetch URL
	fetch_url = 'http://api.embed.ly/1/preview?%s' % urllib.urlencode(data)

	http = tornado.httpclient.AsyncHTTPClient()
	http.fetch(fetch_url, self._metadata_callback)

	def _metadata_callback(self, response):
	#Load the content as json
	data = json.loads(response.body)

	def clean(value):
	#Make sure there is no malicious values
	return value

	#Here is where you could clean values
	for name, value in data.items():
	data[name] = clean(value)

	self.write(json.dumps(data))
	self.finish();

	url_mapping = [
	(r"/", MainHandler),
	(r"/proxy", ProxyHandler),
	]

	if __name__ == "__main__":
	application = tornado.web.Application(url_mapping, {'debug':True})
	http_server = tornado.httpserver.HTTPServer(application, xheaders=True)
	http_server.listen(8000)
	tornado.ioloop.IOLoop.instance().start()