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composer/src/Composer/SelfUpdate/Keys.php

37 lines
874 B
PHP

<?php
/*
* This file is part of Composer.
*
* (c) Nils Adermann <naderman@naderman.de>
* Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Composer\SelfUpdate;
/**
* @author Jordi Boggiano <j.boggiano@seld.be>
*/
class Keys
{
public static function fingerprint($path)
{
$hash = strtoupper(hash('sha256', preg_replace('{\s}', '', file_get_contents($path))));
return implode(' ', array(
substr($hash, 0, 8),
substr($hash, 8, 8),
substr($hash, 16, 8),
substr($hash, 24, 8),
'', // Extra space
substr($hash, 32, 8),
substr($hash, 40, 8),
substr($hash, 48, 8),
substr($hash, 56, 8),
));
}
}