My blog has been moved to ariya.ofilabs.com.

Saturday, April 10, 2010

cupertino

Tomorrow, we (a bunch of Qualcomm folks working on WebKit) will go up north. We'll be at Apple HQ in Cupertino for the WebKit contributors meeting. I look forward to meeting all the great WebKit hackers (again) face-to-face!

Monday, April 05, 2010

simple http proxy server in 100 lines

I guess a simple proxy server should have been an example in Qt Network module. What I mean of course a real proxy server based on Qt, not about using a proxy server via QNetworkProxy class. After all, there are other more complex examples like the torrent client and Google suggest (yeah, blame me for the latter). As a matter of fact, there are e.g. a gazillion proxy servers written in Python.

Look no more. I posted an example in the X2 repository, under the directory network/webproxy. The code is written for clarity and not for performance. In fact, fancy error handling is even omitted (minimalism rulez!). There is no support for pipelining, or in-memory cache, or per-connection thread, or even secure connection via https. I leave them as exercises for the curious readers.

If we focus on things which work, here they are: asynchronous socket handling, different request methods (GET/PUT/POST/HEAD), persistent connection aka keep alive, and even Flash and HTML 5 video streaming. Yes, you can still watch YouTube or Vimeo if you hook your browser into this little proxy. For a few hours of hacking and 92 lines of code (as reported by sloccount) and certain ways to abuse QObject, I could not be more happier.

There will be two other offspring examples based on this one. So stay tuned. Meanwhile let's just hope nobody would ask me for a colorful UML diagram for this snippet...

PS: Special thanks to Jan Erik for his feedback and review.