Sorry for late or redundant response


Look into Apache rewrite module, you can get fairly fine tooth control there, I 
use it to disallow web based access to mount points that have to be served from 
within the server accessible tree….



edward



From: Lathan Bidwell [mailto:lat...@andrews.edu]
Sent: Monday, March 23, 2015 10:05 PM
To: Phillip Hellewell
Cc: rand...@modperl.pl; mod_perl list; Randolf Richardson
Subject: Re: Disallow path info



Out of curiosity, Are there links that actually point to 
/myscript.pl/path/info/.<http://myscript.pl/path/info/>.. ?



Because if you are trying to block them, then it sounds like you don't want to 
link to them either. Would it be possible to find how they are reaching that 
page and change the links?



Another perspective: If you change the links, then if they somehow get 
there...then they get a broken page....



On Mon, Mar 23, 2015 at 6:16 PM, Phillip Hellewell 
<ssh...@gmail.com<mailto:ssh...@gmail.com>> wrote:

On Mon, Mar 23, 2015 at 3:08 PM, Randolf Richardson 
<rand...@modperl.pl<mailto:rand...@modperl.pl>> wrote:
>         Can you provide some additional detail about what you're doing?

I'm just trying to secure my website, and one problem right now is if
someone enters http://mysite.example.com/myscript.pl/path/info , not
only does it work (which I don't want), but the page is formatted all
wrong because it can't find the css, because my HTML uses a relative
path, like this:

<link rel="stylesheet" type="text/css" href="css/default.css">

and because of the path of the URL, the web browser looks here for it:
    http://mysite.example.com/myscript.pl/path/info/css/default.css
instead of here where it's actually at:
    http://mysite.example.com/css/default.css

And worst of all, that really long crazy path also works, and returns
HTML from my script, and it is not CSS.

This affects some js files that I include from my HTML too.  What's
scary is the fact that this means the browser tries to interpret the
HTML that gets returned as both css and javascript.

And yes, I already know I can make this work probably by using
absolute paths for (but actually I can't, because in my real use case
there is a parent folder in the path that comes before the script, on
some servers but not others).

But I don't want to do a bunch of workarounds to "make it work".  I
want the user to get a 404.

>         As far as I understand it, with "AcceptPathInfo Off" in efffect, the
> "/path/info" portion should cause a 404 error.  Of course, if this
> doesn't work on your system, one possible work-around would be to

Yes, and it does work on my system when using the default cgi handler.
It only does not work when I am using ModPerl handler.

> check that $r->path_info is empty and do the following if it isn't:
>
>                 $r->status(Apache2::Const::HTTP_NOT_FOUND);
>                 return Apache2::Const::HTTP_NOT_FOUND;

What is $r and where does it come from?  I know I can check the
PATH_INFO env var from my perl script, but my goal is to *not* have to
modify all my .pl scripts to do extra checking.

Thanks,
Phillip

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