How to stop accessibility of a PHP documents from various other websites

I read someplace concerning warm connecting of images. Protecting against photo warm connecting aids to stop transmission capacity burglary from your website. Would certainly it benefit a PHP documents?

In my instance, I am making use of a PHP documents to create thumbnails from a photo. I do not desire others to refer this PHP documents from their website.

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webdev
2019-05-13 02:11:41
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Answers: 1

One programmatic means is to examine the referrer to see to it the demand originated from your website: 

<?php
    $yoursite = "yoursite.com"; //Your site url without http://
    $yoursite2 = "www.yoursite.com"; //Type your domain with www. this time

    $referer = $_SERVER['HTTP_REFERER'];

    //Check if browser sends referrer url or not
    if ($referer == "") { //If not, set referrer as your domain
        $domain = $yoursite;
    } else {
        $domain = parse_url($referer); //If yes, parse referrer
    }

    if($domain['host'] == $yoursite || $domain['host'] == $yoursite2) {

        //Run your image generation code

    } else {

        //The referrer is not your site, we redirect to your home page
        header("Location: http://yoursite.com");
        exit(); //Stop running the script

    }    
?>

Source: http://www.knowledgesutra.com/forums/topic/40295-check-referrer-to-prevent-linking-yours-from-other-sites/

Edit
This article offers an alternative method making use of PHP sessions.

0
2019-05-17 10:35:26
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