Created
September 12, 2012 17:51
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sockjs-tornado with tornado.gen interface.
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| # -*- coding: utf-8 -*- | |
| from tornado import ioloop, web, gen, httpclient | |
| from sockjs.tornado import SockJSConnection, SockJSRouter | |
| class IndexHandler(web.RequestHandler): | |
| """Regular HTTP handler to serve the ping page""" | |
| def get(self): | |
| self.render('index.html') | |
| # Out broadcast connection | |
| class GrabConnection(SockJSConnection): | |
| def on_message(self, msg): | |
| print '1 - Making request' | |
| self.handle_request(msg) | |
| print '2 - Returned from on_message' | |
| @gen.engine | |
| def handle_request(self, url): | |
| client = httpclient.AsyncHTTPClient() | |
| response = yield gen.Task(client.fetch, url) | |
| self.send(repr(response.headers)) | |
| print '3 - Sent data to client' | |
| GrabRouter = SockJSRouter(GrabConnection, '/grab') | |
| if __name__ == "__main__": | |
| import logging | |
| logging.getLogger().setLevel(logging.DEBUG) | |
| # Create application | |
| app = web.Application( | |
| [(r"/", IndexHandler)] + | |
| GrabRouter.urls | |
| ) | |
| app.listen(8080) | |
| print 'Listening on 0.0.0.0:8080' | |
| ioloop.IOLoop.instance().start() |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script> | |
| <script src="http://cdn.sockjs.org/sockjs-0.3.min.js"></script> | |
| <script> | |
| $(function() { | |
| var conn = new SockJS('http://localhost:8080/grab'); | |
| conn.onmessage = function(e) { | |
| $('<div/>').text(e.data).appendTo($('#msg')); | |
| $('#msg').append('<hr/>'); | |
| } | |
| $('#grab').click(function() { | |
| conn.send('http://www.google.com/'); | |
| return false; | |
| }); | |
| }); | |
| </script> | |
| </head> | |
| <body> | |
| <h3>Grab it!</h3> | |
| <div id="msg"></div> | |
| </body> | |
| <a id="grab" href="#">Grab!</a> | |
| </html> |
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