But this will basically duplicate ngx_http_parse_complex_uri's functionality in parse_unsafe_uri (at least part of it). Maybe just try to make it less "specific"? Why not have a single function for URI parsing?
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Maxim Dounin <mdounin@mdounin.ru> написал(а):

Hello!

On Wed, Feb 01, 2012 at 03:51:18AM +0400, vitalif@yourcmc.ru wrote:

> Hello!
>
> By now, nginx does not allow urlencoded X-Accel-Redirect URLs and
> totally fails to access files with '?' in name with it.
> The problem was also discussed at 'nginx' maillist:
> http://nginx.2469901.n2.nabble.com/Bug-X-Accel-Redirect-td5510716.html
>
> The patch suggested there just unescaped the url in
> ngx_http_parse_unsafe_uri(). As Maxim Dounin said, this is incorrect
> because also unescapes the query string.
> I want to suggest another solution - swap
> ngx_http_parse_unsafe_uri() to ngx_http_parse_complex_uri(). The
> patch is in attachment.
> What can you say about it?

> This is a patch for nginx 1.1.12 handling of X-Accel-Redirect URLs:
> run them through ngx_http_parse_complex_uri(), not ngx_http_parse_unsafe_uri().
> It allows to handle percent-encoded URLs and complex filenames in X-Accel-Redirect
> (for example, filenames which contain '?').

I don't think that swap with ngx_http_parse_complex_uri() is a
good idea. It's very specialized function to parse original
request uri, and in particular it modifies many private request
fields which shouldn't be modified by proxy.

I would rather like to see ngx_http_parse_unsafe_uri() changes
done right (i.e. unescape only uri, but not query string, and
preserve checks currently done).

Note that among standard modules the change of
ngx_http_parse_unsafe_uri() will also affect dav and ssi modules.
I think that in both cases effect will be similar to one with
X-Accel-Redirect, i.e. positive (though I haven't checked too
deep).

Maxim Dounin

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