CODEWITHSUNDEEP
apache.htaccessmod-rewrite
Mars Robertson
Mars Robertson

Reputation: 13213

Case sensitive URLs - how to make them insensitive?

I'm struggling with mod_rewrite and .htaccess... All I need to do is make my URLs case in-sensitive. After couple of 500 internal server errors and a lot of googling a lot of stack overflowing I'm just looking for one working solution.

NOT working: Convert to lowercase in a mod_rewrite rule

RewriteMap tolower int:tolower
RewriteRule  ^([^/]+)/?$  somedir/${tolower:$1}

NOT working: Case Insensitive URLs with mod_rewrite

CheckSpelling on

All I need is simple not-case sensitive URLs :)

Upvotes: 14

Views: 33043

Answers (6)

Drizzit12
Drizzit12

Reputation: 189

The following should work:

<IfModule mod_rewrite.c>
    RewriteEngine on
    RewriteMap lowercase int:tolower
    RewriteCond $1 [A-Z]
    RewriteRule ^/(.*)$ /${lowercase:$1} [R=301,L] 
</IfModule>

If not, can you describe what's not working about the proposed solutions?

Upvotes: 5

Richard
Richard

Reputation: 11

A variation on one of the above from user2305090 which works for me:

First, add the following to your .htaccess file where /forwarding-site-nocase.php is my custom 404 page URL.

ErrorDocument 404 /forwarding-site-nocase.php

Then, at the very top of your custom 404 page, starting on line 1, add the following. If you have a blank line first, it fails.

<?php
$mydir=getdir("/",$_SERVER['REQUEST_URI']);
if($mydir!=false)
{
    $thedomain = 'https://' . $_SERVER['SERVER_NAME'];
    header("HTTP/1.1 301 Moved Permanently");
    header( 'Location: ' . $thedomain.$mydir );
}
function getdir($loc,$tfile)
{
    $startloc=$_SERVER['DOCUMENT_ROOT'];
    if (file_exists($startloc.$loc) && $handle = opendir($startloc.$loc)) 
    {
        while (false !== ($file = readdir($handle)))
        {
            if ($file != "." && $file != ".." && strncasecmp($loc.$file,$tfile,strlen($loc.$file))==0)
            {
            if(strncasecmp($loc.$file,$tfile,strlen($tfile))==0)
            {
                return $loc.$file;
                }
                else
                {
                    return getdir($loc.$file."/",$tfile);
                }
            }
        }
    closedir($handle);
    }
    return false;
}
?>

Now you can follow this with your standard HTML for your custom 404 page such as:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Language" content="en" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="description" content="Company information page - Page Not Found Error"/> 
<meta name="search" content="Company information page - About Us.  Manufacturer of rack mount rugged computer systems and rugged LCD displays for the military and industrial markets" />

and so forth for the rest of the page.

Note I changed the "http://" to "https://" and the error file explicitly to .php, since the original suggested version threw an error.

Upvotes: 1

Renjith Gopi
Renjith Gopi

Reputation: 11

using "vhosts.conf" folder. URL's can be made case in sensitive. location : /var/www/vhosts/domain.com/conf/vhosts.conf

RewriteEngine on
rewritemap lowercase int:tolower
RewriteCond $1 [A-Z]
RewriteRule ^/(.*)$ /${lowercase:$1} [R=301,L]

Upvotes: 0

user2624241
user2624241

Reputation:

(Translated by Google)

What would be the need to do recursive?
If you know the file path:
dirname ($ _SERVER ['REQUEST_URI'])

It only remains to identify the correct file name.

My simplified version of the script would be:

.htaccess (in root folder)
ErrorDocument 404 /notfound.php

notfound.php (in root folder)

<?php

$tdir=getdir($_SERVER['REQUEST_URI']);

if($tdir != false) {
  header("HTTP/1.1 301 Moved Permanently");
  header( 'Location: http://www.YOURDOMAIN.COM'.$tdir );

} else {
  die('YOUR PERSONAL MESSAGE FOR 404');

}

function getdir($tfile) {
  $startloc="/HOME/YOUR/PATH/TO/WWW".dirname($tfile);

  if (file_exists($startloc) && $handle = opendir($startloc)) {
    while (false !== ($file = readdir($handle))) {
      if ($file != "." && $file != ".." && strcasecmp($file,basename($tfile))==0) {            
        return dirname($tfile).DIRECTORY_SEPARATOR.$file;
      }
    }
    closedir($handle);
  }
  return false;
}
?>

Remember to change:
1. YOURDOMAIN.COM
2. YOUR PERSONAL MESSAGE FOR 404
3. /HOME/YOUR/PATH/TO/WWW

Upvotes: 0

user2305090
user2305090

Reputation: 11

The above doesn't work but the following does. Play with it at www.chassis-plans.com/off-the-shelf-industrial-pc.html. Change any of the case in the URL and the code will change it to the appropriate case and display the page. If you put in a URL that doesn't exist (www.chassis-plans.com/x), the custom 404 page displays.

First, add the following to your .htaccess file where /forwarding-site-nocase.html is my custom 404 page URL.

AddType application/x-httpd-php .html .htm
ErrorDocument 404 /forwarding-site-nocase.html

Then, at the very top of your custom 404 page, starting on line 1, add the following. If you have a blank line first, it fails.

<?php
$mydir=getdir("/",$_SERVER['REQUEST_URI']);
if($mydir!=false)
{
    $thedomain = 'http://' . $_SERVER['SERVER_NAME'];
    header("HTTP/1.1 301 Moved Permanently");
    header( 'Location: ' . $thedomain.$mydir );
}
function getdir($loc,$tfile)
{
    $startloc=$_SERVER['DOCUMENT_ROOT'];
    if (file_exists($startloc.$loc) && $handle = opendir($startloc.$loc)) 
    {
        while (false !== ($file = readdir($handle)))
        {
            if ($file != "." && $file != ".." && strncasecmp($loc.$file,$tfile,strlen($loc.$file))==0)
            {
                if(strncasecmp($loc.$file,$tfile,strlen($tfile))==0)
            {
                return $loc.$file;
                }
                else
                {
                    return getdir($loc.$file."/",$tfile);
                }
            }
        }
    closedir($handle);
    }
    return false;
}
?>

Now you can follow this with your standard HTML for your custom 404 page such as:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Language" content="en" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="description" content="Company information page - Page Not Found Error"/> 
<meta name="search" content="Company information page - About Us.  Manufacturer of rack mount rugged computer systems and rugged LCD displays for the military and industrial markets" />

and so forth for the rest of the page.

I had some trouble with IE, probably the cache, when developing and testing but it now seems to work OK.

Upvotes: 1

someone
someone

Reputation: 1468

Put this in your .htaccess file:

ErrorDocument 404 /notfound.html
AddType application/x-httpd-php .html

Put this in notfound.html:

<?php
$tdir=getdir("/",$_SERVER['REQUEST_URI']);
if($tdir!=false)
{
    header("HTTP/1.1 301 Moved Permanently");
    header( 'Location: http://yourdomain.com'.$tdir );
}
function getdir($loc,$tfile)
{
    $startloc="/path/to/root/dir";
    if (file_exists($startloc.$loc) && $handle = opendir($startloc.$loc)) 
    {
        while (false !== ($file = readdir($handle)))
        {
            if ($file != "." && $file != ".." && strncasecmp($loc.$file,$tfile,strlen($loc.$file))==0)
            {
                if(strncasecmp($loc.$file,$tfile,strlen($tfile))==0)
                {
                    return $loc.$file;
                }
                else
                {
                    return getdir($loc.$file."/",$tfile);
                }
            }
        }
        closedir($handle);
    }
    return false;
}
?>
404 Error, Page Not Found

Replace yourdomain.com with the url of your website. Replace /path/to/root/dir with the absolute path to your root directory to start searching from. Replace 404 Error, Page Not Found with a custom 404 error page.

This script should then recursively search your filesystem for pages with the same name but different capitalization and redirect the user if any are found.

Upvotes: 0

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