Disallowed Character Redirect

treeface

Posted: 10 July 2010 04:56 PM

[ Ignore ]

Grad Student

Total Posts: 57

Joined 03-29-2010

Hello all,

I was curious if there’s a simple method of redirecting a disallowed character URL to a 404 page. My current allowed characters regex is the CI default. Thanks

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Buso

Posted: 10 July 2010 05:10 PM

[ Ignore ] [ # 1 ]

Research Assistant

Total Posts: 303

Joined 10-18-2009

class MY_URI extends CI_Uri {
    
    public function __construct() {
      
        parent::CI_URI();
        
    }
    
    function _filter_uri($str) {
        
        if ($str != '' && $this->config->item('permitted_uri_chars') != '' && $this->config->item('enable_query_strings') == FALSE) {
            
            if ( ! preg_match("|^[".str_replace(array('\\-', '\-'), '-', preg_quote($this->config->item('permitted_uri_chars'), '-'))."]+$|i", $str)) {
                
                $str = 'non-existent-uri';
                
            }
            
        }
                            
        return $str;
        
    }
}

Basically you return a non-existent uri when you find disallowed characters. Then you let the Router class handle that as a 404.

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treeface

Posted: 10 July 2010 05:15 PM

[ Ignore ] [ # 2 ]

Grad Student

Total Posts: 57

Joined 03-29-2010

Just tested it…works perfectly. Thanks a lot!

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shofe

Posted: 13 August 2010 11:51 PM

[ Ignore ] [ # 3 ]

Summer Student

Total Posts: 1

Joined 08-13-2010

Hi,

I’m just wondering how this get’s called automatically. Because I have added this one and it’s not working it is still executing the original URI.

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