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From "M.Zdila/EpiSoftware Slovakia Ltd." <m.zd...@episoftware.com>
Subject special proxying
Date Tue, 16 Sep 2003 10:55:04 GMT
Hi

I have a problem I need to solve, but I dont know if it is possible
using mod_proxy:

I'd like to create an elearning web portal which will group and mediate
other elearning resources and portals all over the internet I'll coose.
But all the requests for resources on the other portals have to be
mediated (proxied) by my portal for logging and accounting capabilities.
The problem is, that the "proxy" must in this case rewrite all the URLs
on webpages (I belive).

For example: resource#1 (some webpage) is on OTHERPORTAL server

CLIENT->MYPORTAL: REQUEST for resource#1
MYPORTAL->OTHERPORTAL: REQUEST for resource#1
OTHERPORTAL->MYPORTAL: RESPONSE resource#1
MYPORTAL rewrite all URLs in resource#1 (for example <a href="foo.html">
to <a href="myportal?url=otherportal/foo.html)
MYPORTAL->CLIENT: RESPONSE resource#1

I've already created a proxy program (in PHP) which rewrites all the
URLs in HTML pages ant it works good (forms, cookies, redirects - no
problem). But the problem are Javascript, Java and Flash, because in
theese resources I can't rewrite URLs (I think it is impossible).

Have anybody ANY idea how to solve this problem? Is mod_proxy capable of
this - and if yes - how? Some of my solution is that CLIENT will have to
setup himself proxyserver setting in his browser as my portal (so there
will be no need to rewrite URLs), but I don't want this, it should be
done with no explicit CLIENT's browser configuration.

Please, if you got any idea about this, tell me. Or if I am writing to
wrong mailing list, please tell me some I can write to.

Thanks
Martin



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