[Mongrel] Mongrel can't handle some URLs that IE6 sends

Eden Li eden.li at gmail.com
Sun Oct 15 19:07:25 EDT 2006

Hmm.  It looks like a plugin can't handle this.  The plugin I tested
never got its process method called.

Tracing through lib/mongrel.rb, the HttpParser#execute method throws
an HttpParserError before it has a chance to pass the request off to
the plugin.  Looks like this'll have to be patched in the Ragel or C

FWIW, the URI parsing libraries of both Perl and Python, which claim
to be RFC compliant, parse these out 'properly' without throwing an

Also, from rfc2396:

   The angle-bracket "<" and ">" and double-quote (") characters are
   excluded because they are often used as the delimiters around URI in
   text documents and protocol fields.

Which makes sense from the standards point of view, but if the request
has already gotten to your server, it shouldn't barf on it.

On 10/16/06, Rick Olson <technoweenie at gmail.com> wrote:
> On 10/15/06, philippe lachaise <philippe.lachaise at gmail.com> wrote:
> > >> You could probably write a mongrel handler to cuddle with the params.
> >
> > Aren't people likely to blame it on Mongrel, even if it is most unfair ?
> >
> > The usual conclusion is "this server can't handle that".
> >
> > My gut feeling is that a web server should handle gracefully ill-behaved
> > clients or complain explicitely.
> >
> > (But, since I'm not the one who can write the code, take my remark as a mere
> > whisper ;-)
> That's up to Zed I guess.  But, a plugin serves many purposes:
> - lets you get on with your life since you don't have to wait for a new release
> - lets others on older versions of mongrel easily upgrade
> - provides Zed with working code (hopefully) being used in production.
>  i'm sure that says a lot more than a feature request.
> As much as I dislike the notion, I too think Mongrel should handle this stuff.
> --
> Rick Olson
> http://weblog.techno-weenie.net
> http://mephistoblog.com
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