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February 09, 2012, 10:34:34 AM

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Author Topic: .htaccess Redirection  (Read 1797 times)
Lachlan McDonald
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« on: January 18, 2009, 01:58:55 AM »
Evening lads,

I'm trying to do a .htaccess redirection were all attempts to load a directory which does not exist will be redirected to a PHP script. When a directory does exist, no redirection will occur. However, when I include the code below in public_html/.htaccess file, I get HTTP 500 error.

Code:
RewriteCond %{REQUEST_URI} !-d   [NC]
RewriteRule ^/(.*) /inc/test.php?id=$1    [NC,NE]

I've also tried to spell out the directories instead as shown below:

Code:
RewriteCond %{REQUEST_URI} !^/(img|imgs|about|contact|support)/    [NC]
RewriteRule ^/(.*) /inc/test.php?id=$1    [NC,NE]

But I still get a 500 error. It seems no matter what I write, if I try to negate the operation with a exclamation mark, I get thrown an error.

Any idea how to overcome this?

Cheers,

Lachlan
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MrPhil
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« Reply #1 on: January 18, 2009, 12:09:39 PM »
A couple of things to try:

1) use %{REQUEST_FILENAME} instead of %{REQUEST_URI}

2) the leading "/" is stripped off for you:  RewriteRule  ^(.*)$ ....
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Lachlan McDonald
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« Reply #2 on: January 18, 2009, 08:04:43 PM »
Thanks MrPhil, but unfortunately I'm still getting the 500 error.

Code:
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*) /inc/test.php?id=$1    [NE]
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MrPhil
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« Reply #3 on: January 19, 2009, 04:55:00 PM »
Have you tried it without the NE flag? What are you trying to keep from being escaped?
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Lachlan McDonald
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« Reply #4 on: January 19, 2009, 07:38:30 PM »
Ah, I didn't realise I left that in. I removed it, but I'm still getting the Internal Server Error. It seems if I remove the exclamation mark, Apache will match existing directories. So it seems trying to negate the expression with the exclamation mark is what is causing the error.
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MrPhil
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« Reply #5 on: January 19, 2009, 07:57:18 PM »
I don't know. You're using the standard ASCII or Latin-1 character set's exclamation point, and not something exotic? Unless someone else can spot something, all I can suggest is opening a support ticket. Sometimes there are server misconfigurations that only LP support can fix, that cause inexplicable internal server errors.
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Lachlan McDonald
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« Reply #6 on: January 19, 2009, 10:10:57 PM »
That's what I thought too, but I double checked everything and it all checked out. Looks like I will have to open a support ticket.
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Lachlan McDonald
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« Reply #7 on: January 26, 2009, 05:30:38 PM »
Whilst creating a test directory to show the error to the support staff, I discovered that the following works:

Code:
RewriteCond   %{REQUEST_URI}                           ^/[a-z][a-z0-9]+/$
RewriteCond   /home/radel3/public_html/%{REQUEST_URI}  !-d
RewriteRule   ^(.*)                                    profiles.php?id=$1&fn=%{REQUEST_URI} [L]

It seems that the the moment I use an exclamation mark and a forward-slash in the directive, things go bad. So long as the script I attempt to load is in the base directory, everything works as expected.
« Last Edit: January 26, 2009, 05:56:45 PM by Lachlan McDonald » Logged
daniels0xff
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« Reply #8 on: February 19, 2009, 11:17:57 AM »
Hi,

Try this.
It checks if the file/folder exists and if not it rewrites to script.php?id=

Code:
<IfModule mod_rewrite.c>
RewriteEngine On

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ /script.php?id=$1 [L]
</IfModule>
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