Re: [Chicken-users] Hang problem with the http egg.

[Robin Lee Powell]

On Wed, Mar 12, 2008 at 08:50:55AM -0700, Robin Lee Powell wrote:
> On Wed, Mar 12, 2008 at 11:32:37AM -0400, Graham Fawcett wrote:
> > On Wed, Mar 12, 2008 at 11:22 AM, Robin Lee Powell
> > <address@hidden> wrote:
> > 
> > >  > Could it be that the body is the string "OK,585562" with no
> > >  > terminating newline, and read-line hangs on it?
> > >
> > >  Possible. If that's really the issue, you could try using
> > >  read-lines or read-all. But if so, it's still an http egg
> > >  bug, because http:GET hangs on it too.
> > 
> > The blocking makes sense: if you ask a port to read an
> > indeterminately long string, it will eventually block until the
> > connection is closed.
> > 
> > Perhaps get the Content-Length header from the response, and
> > (read-string n) where n is the Content-Length?
> 
> There isn't one.
> 
> Oh, wait, there *IS*.  How did I miss that?  Yeesh.

The answer is that the http egg eats it somehow; here's the headers
output from http:

headers: ((content-type . text/plain) (expires . Thu, 01 Jan 1970
00:00:00 GMT) (pragma . no-cache) (cache-control . no-cache)
(connection . close) (server . Jetty/5.1.x (Windows XP/5.1 x86
java/1.5.0_06) (date . Wed, 12 Mar 2008 15:41:57 GMT)).

I'm looking at the http egg code, and I don't see how that's
happening, but my *guess* is that it's dropping whatever the last
header is on the floor, because curl says that header is last:

The other possibility is that that header is failing the regex, but
a quick test with egrep shows that that doesn't seem to be the case.

HTTP/1.1 200 OK
Date: Wed, 12 Mar 2008 15:57:16 GMT
Server: Jetty/5.1.x (Windows XP/5.1 x86 java/1.5.0_06
Cache-Control: no-cache
Pragma: no-cache
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Content-Type: text/plain
Content-Length: 9

OK,436390%

And unfortunately, I have to stop working on this for today.

-Robin

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