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From Yang Zhang <yanghates...@gmail.com>
Subject Re: [users@httpd] How to prevent mod_proxy from rewriting redirects into absolute URLs?
Date Mon, 19 Nov 2012 01:38:59 GMT
On Sun, Nov 18, 2012 at 3:21 PM, Igor Cicimov <icicimov@gmail.com> wrote:
>
> On Mon, Nov 19, 2012 at 9:48 AM, Yang Zhang <yanghatespam@gmail.com> wrote:
>>
>> I have: nginx (port 80) reverse-proxying to apache2 (port 88)
>> reverse-proxying to a web app (port 5001).
>>
>> However, when the web app responds with a redirect like `Location:
>> /foo`, apache2 rewrites this into `Location:
>> http://host.com:88/sub/foo`,
>
>
> Yes that's what reverse proxy is all about, it rewrites the Location header
> using ProxyPassReverseso it doesn't get bypassed in case of backend server
> redirection.

nginx doesn't do the same rewrite from host.com:88 to host.com - I'd
also be fine with a solution where nginx does this rewrite as well.

>
>> even though port 88 is publicly
>> inaccessible. I'd like it to just redirect to the relative URL
>> `Location: /sub/foo`.
>
>
> So use a redirect then. Looks like reverse proxy is not applicable for your
> user case.

What specifically do you mean when you suggest to "use a redirect"?
Are you suggesting redirecting host.com:88 to host.com?  That's not
possible because port 88 is not (and should not be) publicly
reachable.

>
>>
>>
>> Any ideas?
>>
>> My apache config (using mod_proxy_http, mod_proxy_html, mod_substitute):
>>
>>       <Location /notes/>
>>         Allow from all
>>         ProxyPass http://127.0.0.1:5001/
>>         SetOutputFilter  proxy-html
>>         ProxyPassReverse /
>>         ProxyHTMLURLMap  /   /notes/
>>         RequestHeader unset Accept-Encoding
>>         AddOutputFilterByType SUBSTITUTE application/atom+xml
>>         Substitute "s|127.0.0.1:5001|host.com/notes|"
>>       </Location>
>>
>> Thanks.
>>
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>>
>



--
Yang Zhang
http://yz.mit.edu/

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