FM / PseudoRandomString

/home/wespack/public_html/admin/Facebook/PseudoRandomString/

/home/wespack/public_html/admin/Facebook/PseudoRandomString

Name	Size	Mode	Actions
McryptPseudoRandomStringGenerator.php	2314	0644	edit dl rm
OpenSslPseudoRandomStringGenerator.php	2595	0644	edit dl rm
PseudoRandomStringGeneratorFactory.php	4057	0644	edit dl rm
PseudoRandomStringGeneratorInterface.php	1643	0644	edit dl rm
PseudoRandomStringGeneratorTrait.php	2080	0644	edit dl rm
RandomBytesPseudoRandomStringGenerator.php	2038	0644	edit dl rm
UrandomPseudoRandomStringGenerator.php	2876	0644	edit dl rm

Edit: /home/wespack/public_html/admin/Facebook/PseudoRandomString/UrandomPseudoRandomStringGenerator.php (2876B)

<?php
/**
 * Copyright 2017 Facebook, Inc.
 *
 * You are hereby granted a non-exclusive, worldwide, royalty-free license to
 * use, copy, modify, and distribute this software in source code or binary
 * form for use in connection with the web services and APIs provided by
 * Facebook.
 *
 * As with any software that integrates with the Facebook platform, your use
 * of this software is subject to the Facebook Developer Principles and
 * Policies [http://developers.facebook.com/policy/]. This copyright notice
 * shall be included in all copies or substantial portions of the software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 */
namespace Facebook\PseudoRandomString;

use Facebook\Exceptions\FacebookSDKException;

class UrandomPseudoRandomStringGenerator implements PseudoRandomStringGeneratorInterface
{

use PseudoRandomStringGeneratorTrait;

/**
     * @const string The error message when generating the string fails.
     */
    const ERROR_MESSAGE = 'Unable to generate a cryptographically secure pseudo-random string from /dev/urandom. ';

/**
     * @throws FacebookSDKException
     */
    public function __construct()
    {
        if (ini_get('open_basedir')) {
            throw new FacebookSDKException(
                static::ERROR_MESSAGE .
                'There is an open_basedir constraint that prevents access to /dev/urandom.'
            );
        }

if (!is_readable('/dev/urandom')) {
            throw new FacebookSDKException(
                static::ERROR_MESSAGE .
                'Unable to read from /dev/urandom.'
            );
        }
    }

/**
     * @inheritdoc
     */
    public function getPseudoRandomString($length)
    {
        $this->validateLength($length);

$stream = fopen('/dev/urandom', 'rb');
        if (!is_resource($stream)) {
            throw new FacebookSDKException(
                static::ERROR_MESSAGE .
                'Unable to open stream to /dev/urandom.'
            );
        }

if (!defined('HHVM_VERSION')) {
            stream_set_read_buffer($stream, 0);
        }

$binaryString = fread($stream, $length);
        fclose($stream);

if (!$binaryString) {
            throw new FacebookSDKException(
                static::ERROR_MESSAGE .
                'Stream to /dev/urandom returned no data.'
            );
        }

return $this->binToHex($binaryString, $length);
    }
}

validateLength($length); $stream = fopen('/dev/urandom', 'rb'); if (!is_resource($stream)) { throw new FacebookSDKException( static::ERROR_MESSAGE . 'Unable to open stream to /dev/urandom.' ); } if (!defined('HHVM_VERSION')) { stream_set_read_buffer($stream, 0); } $binaryString = fread($stream, $length); fclose($stream); if (!$binaryString) { throw new FacebookSDKException( static::ERROR_MESSAGE . 'Stream to /dev/urandom returned no data.' ); } return $this->binToHex($binaryString, $length); } }