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Re: Allow internal redirect to URI x, but deny external request for x?

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J. Lewis Muir
August 30, 2019 06:00PM
On 08/30, Francis Daly wrote:
> On Fri, Aug 30, 2019 at 01:58:23PM -0500, J. Lewis Muir wrote:
>
> Hi there,
>
> > location ~ ^/my-app/(.*?[^/]\.php(?:/.*|$)) {
> > alias /srv/www/my-app/current/$1;
> > fastcgi_split_path_info ^(.+?\.php)(/.*)$;
> > return 200 "realpath_root: $realpath_root\nfastcgi_script_name: $fastcgi_script_name\nfastcgi_path_info: $fastcgi_path_info\n";
> > }
> >
> > which yields the following:
> >
> > $ curl http://localhost/my-app/
> > realpath_root: /srv/www/my-app/releases/1.0.2/index.php
> > fastcgi_script_name: /my-app/index.php
> > fastcgi_path_info:
> >
> > That doesn't seem right.
>
> Why not?
>
> http://nginx.org/r/$realpath_root says is it the current root or alias
> value, resolving symlinks.
>
> The request was /my-app/, the current request is /my-app/index.php,
> and you have alias'ed that to /srv/www/my-app/current/index.php

Yes, you're absolutely right. This is where I went wrong. I was
initially wishing to use the root directive

location ~ ^/my-app/(.*?[^/]\.php(?:/.*|$)) {
root /srv/www/my-app/current;
include php-fpm-realpath.conf;
}

but then the URI would be appended to that, so for a request of

/my-app/index.php

it would result in

/srv/www/my-app/current/my-app/index.php

which wasn't what I wanted; instead I wanted

/srv/www/my-app/current/index.php

I was wishing for a way to specify a new root but with a modified
request URI. So, I tried the alias directive, and I assumed that
$document_root and $realpath_root would refer to the aliased document
root, but obviously that can't be since nginx has no way of knowing what
the aliased document root should be when all it has is a location alias
which is the full path to the resource. Sorry for the trouble.

> http://nginx.org/r/$fastcgi_script_name (and what follows) describes
> the other variables.
>
> The request is /my-app/index.php and your fastcgi_split_path_info sets
> $fastcgi_script_name to "everything up to .php" and $fastcgi_path_info to
> "everything after .php", so long as .php is followed by / -- which it
> isn't, so both are unchanged from their defaults of "the uri" and "empty".
>
> (I'm somewhat guessing about the last part there; a test can probably
> demonstrate whether it is incorrect.)

Yep, I'm sure you're right here as well. Sorry for the trouble; I just
totally missed how this worked.

Thank you for your help!

Lewis
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Subject Author Posted

Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir August 30, 2019 01:34PM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir August 30, 2019 02:22PM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir August 30, 2019 02:38PM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir August 30, 2019 03:00PM

Re: Allow internal redirect to URI x, but deny external request for x?

Francis Daly August 30, 2019 04:56PM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir August 30, 2019 06:00PM

Re: Allow internal redirect to URI x, but deny external request for x?

Francis Daly August 30, 2019 07:22PM

Re: Allow internal redirect to URI x, but deny external request for x?

Francis Daly August 31, 2019 03:28AM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir August 31, 2019 11:06AM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir August 31, 2019 10:12AM

Re: Allow internal redirect to URI x, but deny external request for x?

Francis Daly August 31, 2019 04:52PM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir August 31, 2019 05:56PM

Re: Allow internal redirect to URI x, but deny external request for x?

Francis Daly September 02, 2019 05:04PM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir September 03, 2019 01:28PM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir September 03, 2019 05:32PM

Re: Allow internal redirect to URI x, but deny external request for x?

Ian Hobson August 30, 2019 03:02PM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir August 31, 2019 11:32AM

Re: Allow internal redirect to URI x, but deny external request for x?

Francis Daly August 30, 2019 04:34PM

Re: Allow internal redirect to URI x, but deny external request for x?

gariac August 30, 2019 05:24PM

Re: Allow internal redirect to URI x, but deny external request for x?

Ian Hobson August 31, 2019 10:42AM

Re: Allow internal redirect to URI x, but deny external request for x?

j94305 August 30, 2019 06:28PM

Re: Allow internal redirect to URI x, but deny external request for x?

gariac August 31, 2019 03:20PM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir September 03, 2019 11:30PM

Re: Allow internal redirect to URI x, but deny external request for x? Attachments

j94305 September 03, 2019 11:56PM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir September 04, 2019 11:30AM

Re: Allow internal redirect to URI x, but deny external request for x? Attachments

j94305 September 04, 2019 11:44AM

Re: Allow internal redirect to URI x, but deny external request for x?

J. Lewis Muir September 04, 2019 12:32PM

Re: Allow internal redirect to URI x, but deny external request for x?

j94305 September 10, 2019 02:46PM



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