Redirect for files matching a regular expression

[jb2009]

Hi,

I'm having one heck of a time trying to figure this out and would love any help that you can offer.

Basically, I need to use mod_rewrite to create a redirect for files beginning with "upl-". On top of that, I need users to have access to these files if a specific cookie is set.

I need this done in mod_rewrite for a number of reasons.

SUMMARY OF WHAT I'M TRYING TO DO:
If requested file name starts with "upl-" and cookie "x" has not been set, redirect to noaccess.php. If the cookie has been set, show the file.

Can anyone help me figure this out? I'm a beginner to mod_rewrite and am completely stumped. I'd be glad to help you with any PHP-related questions as I don't want to come off as a freeloader.

Thanks,
Jon

[richardk]

%{HTTP_COOKIE} contains all the cookies seperated by "; ", eg.

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one=two; three=four; five=six

The RewriteRule (in a .htaccess files) matches the part of the URL after the directory that the .htaccess file is in and up to the query string. For example if the .htaccess file is at /abc/.htaccess and the request is for /abc/def?ghi=jkl then the RewriteRule would match "def". So

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^upl-.+$

will match only upl-* files in the current directory. Is that what you want?

Try

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Options +FollowSymLinks

RewriteEngine on

RewriteCond %{HTTP_COOKIE} ^(.+;\ )?cookie_name=cookie_value(;\ .+)?$ [NC]
RewriteRule ^upl-.+$ /noaccess.php [QSA,L]

If you want the URL to change to /noaccess.php replace QSA with R.

[jb2009]

I'll give that a try. After much much research and experimentation (and obviously before I had a chance to read your reply) I came up with this solution:

RewriteCond %{REQUEST_URI} ^(.*)/upl-(.*) [NC]
RewriteCond %{HTTP_COOKIE} !(cookie_name)
RewriteRule ^(.*) http://www.mysite.com/noaccess.php [R,L]

Not sure if that's better of worse than your solution but it appears to be doing the trick.

Thanks again for your help!
Jon

[richardk]

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RewriteCond %{HTTP_COOKIE} !(cookie_name)

will match partial cookie names and cookie values.

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RewriteCond %{HTTP_COOKIE} ^(.+;\ )?cookie_name= [NC]

should just match exact (remove the NC flag for case sensitiveness) cookie names and ignore the value.

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RewriteCond %{REQUEST_URI} ^(.*)/upl-(.*) [NC]

Will match any case of upl-, not just lowercase. It will also match those files in any sub directory of the current directory (you didn't say if that is what you wanted or not).

You should be able to combine this condition with the RewriteRule

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RewriteRule ^(.+/)?upl-.+$ http://www.example.com/noaccess.php [R,L]

Add the NC flag for case insensitive.
Remove (.+/)? to only match files in the current directory.

Using

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/upl-(.*)

means it will match "upl-" (nothing after it)

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/upl-.+

will only match upl-something.

Did the mod_rewrite i posted not work?

[jb2009]

The reason I couldn't use your code is that I don't know what the cookie value is going to be (it is a random ID), so I wasn't able to work with this line:

RewriteCond %{HTTP_COOKIE} ^(.+;\ )?cookie_name=cookie_value(;\ .+)?$ [NC]

[richardk]

You can use

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RewriteCond %{HTTP_COOKIE} ^(.+;\ )?cookie_name= [NC]

[jb2009]

That clears that dilemma up.
Thanks for all your help with this