On Sun, 10 Jun 2007 17:32:47 +0200, Markus Schiltknecht <[EMAIL PROTECTED]>
wrote:
Hi,
Colin Alston wrote:
What is the basis for using Varnish as opposed to just serving up with
Twisted directly?
Uh.. server side caching, reverse proxying... Why does that need more
explanation? Why should I do that with twisted, if varnish is better at
being a reverse proxy (assuming that twisted also offers a caching module,
which I'm guessing)?
Besides, varnish does a very good job with virtual hosts and multiple
backends (web servers), given that I'm not exclusively running twisted, but
other web servers as well. (And running one twisted instance per virtual
website.)
Perhaps you should point out just exactly where and when you're
experiencing problems with URL rewrites. I've never experienced any of
these problems deploying either with a simple reverse proxy or the
VHostMonstorResource. It used to be a problem specifically with Guard but
these issues seem to have dissolved over the current versions.
Maybe I'm just missing an example...
What I want is pretty simple: I want twisted to serve the URL which I
requested in the HTTP requests top line, no matter what the Host: header
says, i.e. the following two requests:
GET /sample.html HTTP/1.0
Host: localhost:8080
and:
GET /sample.html HTTP/1.0
Host: www.postgres-r.org
..should both deliver the same sample.html file. And *not* a redirect to
whatever twisted thinks is it's hostname and port.
If twisted could simply ignore the 'Host' field, that would be fine. If I
could tell it, what Hosts it should accept (instead of only accepting
'localhost:8080') and what not (i.e. it should probably redirect
'postgres-r.org' to 'www.postgres-r.org'), that would be extra super!
Maybe, someone could simply point me to the python file where twisted does
the hostname and port checking and the redirection? That would already
help...
You're going about this wrong, unfortunately. "Twisted" won't issue a
redirect based on the Host header. Even "twisted.web" won't do that.
Some resource provided by twisted.web (or nevow, I forget what you're
using) might, but only if you put it into your resource hierarchy. Perhaps
you could elaborate on how and of what your Site is constructed? A minimal
code example would be ideal, since it communicates exactly the problem
you're having, instead of relying on the imperfect ability of other people
to translate a prose description of a program back into the same program.
Jean-Paul
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