[tbnl-devel] Re: New version 0.4.0

[Bob Hutchison]

On Mar 15, 2005, at 7:39 AM, Edi Weitz wrote:

> On Tue, 15 Mar 2005 07:34:29 -0500, Bob Hutchison <hutch at recursive.ca> 
> wrote:
>
>> I changed get-apache-command to (unroll the first iteration of the
>> loop and so) read the first line and check to see if it contains a
>> space. If the line came from mod_lisp it will not have a space in
>> it. If it has a space, we know it wasn't mod_lisp so assume that
>> we've got a direct HTTP request. When handling HTTP, call the
>> read-request-from-stream/tbnl function (just above
>> get-apache-command in modlisp.lisp). This sets up the new
>> araneida::*standard-araneida* special variable (to nil) and calls
>> araneida::read-request-from-stream/guts which is a new entry point
>> in Araneida that I added by breaking up the previous function
>> (read-request-from-stream). It then adds a couple of headers (url,
>> content-stream, and server-ip-port) that TBNL seems to want. It then
>> calls process-apache-command and returns.
>
> So this should basically work without Araneida being there at all,
> right?  Or is Araneida involved in sending the reply back to the
> browser?
>

Other than it uses the daemon.lisp code from Araneida to parse headers 
on the way in, it does not need Araneida. I had considered writing an 
HTTP header parser specifically for TBNL but I thought that modifying 
the daemon.lisp code would be quicker. It isn't hard writing HTTP 
header parsers, you only have to watch for multi-line headers.

I had to modify TBNL to write HTTP headers on the way out in order to 
make it work with Araneida as a front end. So, saying this explicitly, 
TBNL is writing the HTTP response directly to the socket. (Though I 
have not tested this with redirect or require-authorization -- I had 
modified send-output and write-header-line to accomplish this).

I didn't do anything about logging for either the stand-alone or 
with-araneida versions.

The next logical step is to write an HTTP header parser for TBNL (or 
negotiate with the Araneida folks to use their code).

>
----
Bob Hutchison          -- blogs at <http://www.recursive.ca/hutch/>
Recursive Design Inc.  -- <http://www.recursive.ca/>