Logged In: YES 
user_id=6757

Here's my current version of the patch; the main change is that errors now result in closing the connection.  A cleaner approach for HTTP 1.1 would be to use Chunked Transfer Encoding for this, so the connection could remain available.

I still get spurious IOErrors (due to SIGPIPEs) that result from clients closing connections.  I believe this is because a lot of clients aren't well-behaved; i.e. they read the HTTP/1.1 response line then close the connection immediately.  Using TCP_CORK on Linux for sockets might help there, but it's not a general solution.  Also, I'm not really sure if these exceptions should be caught here or just left to subclasses to deal with...