<?php
if (!defined('PHP_VERSION_ID')) {
$RandomCompatversion = array_map('intval', explode('.', PHP_VERSION));
define('PHP_VERSION_ID', $RandomCompatversion[0] * 10000 + $RandomCompatversion[1] * 100 + $RandomCompatversion[2]);
$RandomCompatversion = null;
}
if (PHP_VERSION_ID >= 70000) {
return;
}
if (!defined('RANDOM_COMPAT_READ_BUFFER')) {
define('RANDOM_COMPAT_READ_BUFFER', 8);
}
$RandomCompatDIR = dirname(__FILE__);
require_once $RandomCompatDIR . '/byte_safe_strings.php';
require_once $RandomCompatDIR . '/cast_to_int.php';
require_once $RandomCompatDIR . '/error_polyfill.php';
if (!is_callable('random_bytes')) {
if (extension_loaded('libsodium')) {
if (PHP_VERSION_ID >= 50300 && is_callable('\\Sodium\\randombytes_buf')) {
require_once $RandomCompatDIR . '/random_bytes_libsodium.php';
} elseif (method_exists('Sodium', 'randombytes_buf')) {
require_once $RandomCompatDIR . '/random_bytes_libsodium_legacy.php';
}
}
if (DIRECTORY_SEPARATOR === '/') {
$RandomCompatUrandom = true;
$RandomCompat_basedir = ini_get('open_basedir');
if (!empty($RandomCompat_basedir)) {
$RandomCompat_open_basedir = explode(PATH_SEPARATOR, strtolower($RandomCompat_basedir));
$RandomCompatUrandom = array() !== array_intersect(array('/dev', '/dev/', '/dev/urandom'), $RandomCompat_open_basedir);
$RandomCompat_open_basedir = null;
}
if (!is_callable('random_bytes') && $RandomCompatUrandom && @is_readable('/dev/urandom')) {
require_once $RandomCompatDIR . '/random_bytes_dev_urandom.php';
}
$RandomCompat_basedir = null;
} else {
$RandomCompatUrandom = false;
}
if (!is_callable('random_bytes') && (DIRECTORY_SEPARATOR === '/' || PHP_VERSION_ID >= 50307) && (DIRECTORY_SEPARATOR !== '/' || (PHP_VERSION_ID <= 50609 || PHP_VERSION_ID >= 50613)) && extension_loaded('mcrypt')) {
require_once $RandomCompatDIR . '/random_bytes_mcrypt.php';
}
$RandomCompatUrandom = null;
if (!is_callable('random_bytes') && extension_loaded('com_dotnet') && class_exists('COM')) {
$RandomCompat_disabled_classes = preg_split('#\\s*,\\s*#', strtolower(ini_get('disable_classes')));
if (!in_array('com', $RandomCompat_disabled_classes)) {
try {
$RandomCompatCOMtest = new COM('CAPICOM.Utilities.1');
if (method_exists($RandomCompatCOMtest, 'GetRandom')) {
require_once $RandomCompatDIR . '/random_bytes_com_dotnet.php';
}
} catch (com_exception $e) {
}
}
$RandomCompat_disabled_classes = null;
$RandomCompatCOMtest = null;
}
if (!is_callable('random_bytes')) {
function random_bytes($length)
{
unset($length);
throw new Exception('There is no suitable CSPRNG installed on your system');
}
}
}
if (!is_callable('random_int')) {
require_once $RandomCompatDIR . '/random_int.php';
}
$RandomCompatDIR = null;