Best example I have is a small public project for a Planet Aggregator:
http://github.com/padraic/ZFPlanet

This is a PHP app using the Zend Framework. It's not all simple since the 
Pubsubhubbub stuff may be embedded in different places but the callbacks are 
standalone mostly. Since the framework includes Zend_Feed_Pubsubhubbub (waiting 
for the 1.10.2 release - use trunk until then) it uses that primarily (so 
actual mentions of PuSH are very simple library calls). 
Subscriptions/Unsubscriptions are tied to adding and deleting blogs to be 
aggregated - there's no manual subscribing but it's easy to do. Callbacks have 
their own controller and use Zend_Feed_Reader to parse incoming feeds (the 
Pubsubhubbub classes do not parse feeds and only handle the PuSH protocol 
itself). The callback is a basic asynchronous setup. If a feed is detected, 
it's written to a temp file and a script called to process it in a new system 
process. This let's the original callback request be completed quickly.

Subscribing/Unsubscribing:
http://github.com/padraic/ZFPlanet/blob/master/application/modules/admin/controllers/BlogController.php

Handling Callbacks:
http://github.com/padraic/ZFPlanet/blob/master/application/modules/zfplanet/controllers/CallbackController.php

Zfplanet_Model_Subscription's DB Scheme (see towards end):
http://github.com/padraic/ZFPlanet/blob/master/application/data/doctrine/schema/schema.yml

Feel free to ping me with any questions. Alex Barth also has a non-Zend 
Pubsubhubbub library just released so he may also have a, er, simpler example 
around ;).

 Pádraic Brady

http://blog.astrumfutura.com
http://www.survivethedeepend.com
OpenID Europe Foundation Irish Representative





________________________________
From: Jeff Lindsay <[email protected]>
To: pubsubhubbub <[email protected]>
Sent: Tue, February 23, 2010 12:47:03 AM
Subject: [pubsubhubbub] Callback script examples

I'm giving a SXSW talk and I'm looking to show some real-world example code for 
handling PubSubHubbub callbacks. I just need snippets and a description. The 
simpler the better. The more interesting the better. I can easily give you and 
your app/code/company a shoutout while showing the example.

Thanks!

-- 
Jeff Lindsay
http://progrium.com

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