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PATH: usr / local / jetapps / var / lib / 3rdparty / dropbox / src / Security

<?php
namespace Kunnu\Dropbox\Security;

use Kunnu\Dropbox\Exceptions\DropboxClientException;

/**
 * @inheritdoc
 */
class McryptRandomStringGenerator implements RandomStringGeneratorInterface
{
    use RandomStringGeneratorTrait;

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

/**
     * Create a new McryptRandomStringGenerator instance
     *
     * @throws \Kunnu\Dropbox\Exceptions\DropboxClientException
     */
    public function __construct()
    {
        if (!function_exists('mcrypt_create_iv')) {
            throw new DropboxClientException(
                static::ERROR_MESSAGE .
                'The function mcrypt_create_iv() does not exist.'
                );
        }
    }

/**
     * Get a randomly generated secure token
     *
     * @param  int $length Length of the string to return
     *
     * @throws \Kunnu\Dropbox\Exceptions\DropboxClientException
     *
     * @return string
     */
    public function generateString($length)
    {
        //Create Binary String
        $binaryString = mcrypt_create_iv($length, MCRYPT_DEV_URANDOM);

//Unable to create binary string
        if ($binaryString === false) {
            throw new DropboxClientException(
                static::ERROR_MESSAGE .
                'mcrypt_create_iv() returned an error.'
                );
        }

//Convert binary to hex
        return $this->binToHex($binaryString, $length);
    }
}

[-] McryptRandomStringGenerator.php [edit]
[+] ..
[-] RandomStringGeneratorFactory.php [edit]
[-] RandomStringGeneratorTrait.php [edit]
[-] RandomStringGeneratorInterface.php [edit]
[-] OpenSslRandomStringGenerator.php [edit]