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Come realizzare un gestore di licenze con php

// make sure fopen is not disabled
if( !( ini_get(allow_url_fopen) ) ) exit(’Configuration Error: allow_url_fopen must be turned on for this script to work’);

//if kill file does not exist you will get an error (client can see url of kill file) so turn off errors
error_reporting(0);

//get kill file
$lines = file(’http://www.example.com/killer/clientname.txt’);

//if the word kill is in the text file then exit script and show license message
foreach ($lines as $line_num => $line) {
         $license = htmlspecialchars($line);

         if ((strcmp($license,"kill") == 0 )) {
                 exit ("<font color=red size=large><b>There is a problem with this php script’s license please contact support at www.mydomain.com</b></font>");
        
         }
 }

//turn error messages back on
error_reporting(E_ALL);

//this section used to check to see if this script is run in a particular domain
//get the domain name
preg_match("/^(http:\/\/)?([^\/]+)/i", $_SERVER['SERVER_NAME'], $matches);
$host = $matches[2];
// get last two segments of host name
preg_match("/[^\.\/]+\.[^\.\/]+$/", $host, $matches);
//echo "domain name is: {$matches[0]}\n";

$valid_domain = ‘clientdomain.com’;
$domain_name = $matches[0];
if ( $domain_name !== $valid_domain) {
    exit("<font color=red><b>The Script License for this script is valid for use on " . $valid_domain . " only </b></font>");
}

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April 11, 2008 | Scritto in php, tutorials  Letto:241 volte

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