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External Libraries: Update Random_Compat from 1.2.1 to 2.0.11.

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Notably this fixes PHP7 parse errors of the files and removes the OpenSSL functionality.
Full Changes: https://github.com/paragonie/random_compat/compare/v1.2.1...v2.0.11

Props jrdelarosa.
See #42439.


git-svn-id: https://develop.svn.wordpress.org/trunk@42130 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Dion Hulse 2017-11-08 11:47:04 +00:00
parent e7d649e621
commit 56659638dc
11 changed files with 733 additions and 757 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
src/wp-includes/random_compat/byte_safe_strings.php
View File

@ -5,7 +5,7 @@
*
* The MIT License (MIT)
*
* Copyright (c) 2015 Paragon Initiative Enterprises
* Copyright (c) 2015 - 2017 Paragon Initiative Enterprises
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
@ -26,7 +26,7 @@
* SOFTWARE.
*/
if (!function_exists('RandomCompat_strlen')) {
if (!is_callable('RandomCompat_strlen')) {
if (
defined('MB_OVERLOAD_STRING') &&
ini_get('mbstring.func_overload') & MB_OVERLOAD_STRING
@ -51,7 +51,7 @@ if (!function_exists('RandomCompat_strlen')) {
);
}
return mb_strlen($binary_string, '8bit');
return (int) mb_strlen($binary_string, '8bit');
}
} else {
@ -73,12 +73,12 @@ if (!function_exists('RandomCompat_strlen')) {
'RandomCompat_strlen() expects a string'
);
}
return strlen($binary_string);
return (int) strlen($binary_string);
}
}
}
if (!function_exists('RandomCompat_substr')) {
if (!is_callable('RandomCompat_substr')) {
if (
defined('MB_OVERLOAD_STRING')
@ -118,14 +118,22 @@ if (!function_exists('RandomCompat_substr')) {
* mb_substr($str, 0, NULL, '8bit') returns an empty string on
* PHP 5.3, so we have to find the length ourselves.
*/
$length = RandomCompat_strlen($length) - $start;
$length = RandomCompat_strlen($binary_string) - $start;
} elseif (!is_int($length)) {
throw new TypeError(
'RandomCompat_substr(): Third argument should be an integer, or omitted'
);
}
return mb_substr($binary_string, $start, $length, '8bit');
// Consistency with PHP's behavior
if ($start === RandomCompat_strlen($binary_string) && $length === 0) {
return '';
}
if ($start > RandomCompat_strlen($binary_string)) {
return '';
}
return (string) mb_substr($binary_string, $start, $length, '8bit');
}
} else {
@ -164,10 +172,10 @@ if (!function_exists('RandomCompat_substr')) {
);
}
return substr($binary_string, $start, $length);
return (string) substr($binary_string, $start, $length);
}
return substr($binary_string, $start);
return (string) substr($binary_string, $start);
}
}
}

22
src/wp-includes/random_compat/cast_to_int.php
View File

@ -5,7 +5,7 @@
*
* The MIT License (MIT)
*
* Copyright (c) 2015 Paragon Initiative Enterprises
* Copyright (c) 2015 - 2017 Paragon Initiative Enterprises
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
@ -26,7 +26,7 @@
* SOFTWARE.
*/
if (!function_exists('RandomCompat_intval')) {
if (!is_callable('RandomCompat_intval')) {
/**
* Cast to an integer if we can, safely.
@ -38,15 +38,18 @@ if (!function_exists('RandomCompat_intval')) {
* through.
*
* @param int|float $number The number we want to convert to an int
* @param boolean $fail_open Set to true to not throw an exception
* @param bool $fail_open Set to true to not throw an exception
*
* @return int (or float if $fail_open)
* @return float|int
* @psalm-suppress InvalidReturnType
*
* @throws TypeError
*/
function RandomCompat_intval($number, $fail_open = false)
{
if (is_numeric($number)) {
if (is_int($number) || is_float($number)) {
$number += 0;
} elseif (is_numeric($number)) {
$number += 0;
}
@ -60,12 +63,13 @@ if (!function_exists('RandomCompat_intval')) {
$number = (int) $number;
}
if (is_int($number) || $fail_open) {
return $number;
}
if (is_int($number)) {
return (int) $number;
} elseif (!$fail_open) {
throw new TypeError(
'Expected an integer.'
);
}
return $number;
}
}

9
src/wp-includes/random_compat/error_polyfill.php
View File

@ -5,7 +5,7 @@
*
* The MIT License (MIT)
*
* Copyright (c) 2015 Paragon Initiative Enterprises
* Copyright (c) 2015 - 2017 Paragon Initiative Enterprises
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
@ -35,8 +35,15 @@ if (!class_exists('Error', false)) {
}
if (!class_exists('TypeError', false)) {
if (is_subclass_of('Error', 'Exception')) {
class TypeError extends Error
{
}
} else {
class TypeError extends Exception
{
}
}
}

140
src/wp-includes/random_compat/random.php
View File

@ -3,12 +3,12 @@
* Random_* Compatibility Library
* for using the new PHP 7 random_* API in PHP 5 projects
*
* @version 1.2.1
* @released 2016-02-29
* @version 2.0.10
* @released 2017-03-13
*
* The MIT License (MIT)
*
* Copyright (c) 2015 Paragon Initiative Enterprises
* Copyright (c) 2015 - 2017 Paragon Initiative Enterprises
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
@ -31,7 +31,7 @@
if (!defined('PHP_VERSION_ID')) {
// This constant was introduced in PHP 5.2.7
$RandomCompatversion = explode('.', PHP_VERSION);
$RandomCompatversion = array_map('intval', explode('.', PHP_VERSION));
define(
'PHP_VERSION_ID',
$RandomCompatversion[0] * 10000
@ -41,19 +41,24 @@ if (!defined('PHP_VERSION_ID')) {
$RandomCompatversion = null;
}
if (PHP_VERSION_ID < 70000) {
/**
* PHP 7.0.0 and newer have these functions natively.
*/
if (PHP_VERSION_ID >= 70000) {
return;
}
if (!defined('RANDOM_COMPAT_READ_BUFFER')) {
if (!defined('RANDOM_COMPAT_READ_BUFFER')) {
define('RANDOM_COMPAT_READ_BUFFER', 8);
}
}
$RandomCompatDIR = dirname(__FILE__);
$RandomCompatDIR = dirname(__FILE__);
require_once $RandomCompatDIR.'/byte_safe_strings.php';
require_once $RandomCompatDIR.'/cast_to_int.php';
require_once $RandomCompatDIR.'/error_polyfill.php';
require_once $RandomCompatDIR . '/byte_safe_strings.php';
require_once $RandomCompatDIR . '/cast_to_int.php';
require_once $RandomCompatDIR . '/error_polyfill.php';
if (!function_exists('random_bytes')) {
if (!is_callable('random_bytes')) {
/**
* PHP 5.2.0 - 5.6.x way to implement random_bytes()
*
@ -65,16 +70,15 @@ if (PHP_VERSION_ID < 70000) {
* 2. fread() /dev/urandom if available (never on Windows)
* 3. mcrypt_create_iv($bytes, MCRYPT_DEV_URANDOM)
* 4. COM('CAPICOM.Utilities.1')->GetRandom()
* 5. openssl_random_pseudo_bytes() (absolute last resort)
*
* See ERRATA.md for our reasoning behind this particular order
* See RATIONALE.md for our reasoning behind this particular order
*/
if (extension_loaded('libsodium')) {
// See random_bytes_libsodium.php
if (PHP_VERSION_ID >= 50300 && function_exists('\\Sodium\\randombytes_buf')) {
require_once $RandomCompatDIR.'/random_bytes_libsodium.php';
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';
require_once $RandomCompatDIR . '/random_bytes_libsodium_legacy.php';
}
}
@ -92,15 +96,15 @@ if (PHP_VERSION_ID < 70000) {
PATH_SEPARATOR,
strtolower($RandomCompat_basedir)
);
$RandomCompatUrandom = in_array(
'/dev',
$RandomCompatUrandom = (array() !== array_intersect(
array('/dev', '/dev/', '/dev/urandom'),
$RandomCompat_open_basedir
);
));
$RandomCompat_open_basedir = null;
}
if (
!function_exists('random_bytes')
!is_callable('random_bytes')
&&
$RandomCompatUrandom
&&
@ -113,36 +117,58 @@ if (PHP_VERSION_ID < 70000) {
// place, that is not helpful to us here.
// See random_bytes_dev_urandom.php
require_once $RandomCompatDIR.'/random_bytes_dev_urandom.php';
require_once $RandomCompatDIR . '/random_bytes_dev_urandom.php';
}
// Unset variables after use
$RandomCompat_basedir = null;
$RandomCompatUrandom = null;
} else {
$RandomCompatUrandom = false;
}
/**
* mcrypt_create_iv()
*
* We only want to use mcypt_create_iv() if:
*
* - random_bytes() hasn't already been defined
* - the mcrypt extensions is loaded
* - One of these two conditions is true:
* - We're on Windows (DIRECTORY_SEPARATOR !== '/')
* - We're not on Windows and /dev/urandom is readabale
* (i.e. we're not in a chroot jail)
* - Special case:
* - If we're not on Windows, but the PHP version is between
* 5.6.10 and 5.6.12, we don't want to use mcrypt. It will
* hang indefinitely. This is bad.
* - If we're on Windows, we want to use PHP >= 5.3.7 or else
* we get insufficient entropy errors.
*/
if (
!function_exists('random_bytes')
!is_callable('random_bytes')
&&
PHP_VERSION_ID >= 50307
// Windows on PHP < 5.3.7 is broken, but non-Windows is not known to be.
(DIRECTORY_SEPARATOR === '/' || PHP_VERSION_ID >= 50307)
&&
// Prevent this code from hanging indefinitely on non-Windows;
// see https://bugs.php.net/bug.php?id=69833
(
DIRECTORY_SEPARATOR !== '/' ||
(PHP_VERSION_ID <= 50609 || PHP_VERSION_ID >= 50613)
)
&&
extension_loaded('mcrypt')
) {
// Prevent this code from hanging indefinitely on non-Windows;
// see https://bugs.php.net/bug.php?id=69833
if (
DIRECTORY_SEPARATOR !== '/' ||
(PHP_VERSION_ID <= 50609 || PHP_VERSION_ID >= 50613)
) {
// See random_bytes_mcrypt.php
require_once $RandomCompatDIR.'/random_bytes_mcrypt.php';
}
require_once $RandomCompatDIR . '/random_bytes_mcrypt.php';
}
$RandomCompatUrandom = null;
/**
* This is a Windows-specific fallback, for when the mcrypt extension
* isn't loaded.
*/
if (
!function_exists('random_bytes')
!is_callable('random_bytes')
&&
extension_loaded('com_dotnet')
&&
@ -158,7 +184,7 @@ if (PHP_VERSION_ID < 70000) {
$RandomCompatCOMtest = new COM('CAPICOM.Utilities.1');
if (method_exists($RandomCompatCOMtest, 'GetRandom')) {
// See random_bytes_com_dotnet.php
require_once $RandomCompatDIR.'/random_bytes_com_dotnet.php';
require_once $RandomCompatDIR . '/random_bytes_com_dotnet.php';
}
} catch (com_exception $e) {
// Don't try to use it.
@ -168,50 +194,30 @@ if (PHP_VERSION_ID < 70000) {
$RandomCompatCOMtest = null;
}
/**
* openssl_random_pseudo_bytes()
*/
if (
(
// Unix-like with PHP >= 5.3.0 or
(
DIRECTORY_SEPARATOR === '/'
&&
PHP_VERSION_ID >= 50300
)
||
// Windows with PHP >= 5.4.1
PHP_VERSION_ID >= 50401
)
&&
!function_exists('random_bytes')
&&
extension_loaded('openssl')
) {
// See random_bytes_openssl.php
require_once $RandomCompatDIR.'/random_bytes_openssl.php';
}
/**
* throw new Exception
*/
if (!function_exists('random_bytes')) {
if (!is_callable('random_bytes')) {
/**
* We don't have any more options, so let's throw an exception right now
* and hope the developer won't let it fail silently.
*
* @param mixed $length
* @return void
* @throws Exception
*/
function random_bytes($length)
{
unset($length); // Suppress "variable not used" warnings.
throw new Exception(
'There is no suitable CSPRNG installed on your system'
);
}
}
}
if (!function_exists('random_int')) {
require_once $RandomCompatDIR.'/random_int.php';
}
$RandomCompatDIR = null;
}
if (!is_callable('random_int')) {
require_once $RandomCompatDIR . '/random_int.php';
}
$RandomCompatDIR = null;

15
src/wp-includes/random_compat/random_bytes_com_dotnet.php
View File

@ -5,7 +5,7 @@
*
* The MIT License (MIT)
*
* Copyright (c) 2015 Paragon Initiative Enterprises
* Copyright (c) 2015 - 2017 Paragon Initiative Enterprises
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
@ -26,7 +26,8 @@
* SOFTWARE.
*/
/**
if (!is_callable('random_bytes')) {
/**
* Windows with PHP < 5.3.0 will not have the function
* openssl_random_pseudo_bytes() available, so let's use
* CAPICOM to work around this deficiency.
@ -37,8 +38,8 @@
*
* @return string
*/
function random_bytes($bytes)
{
function random_bytes($bytes)
{
try {
$bytes = RandomCompat_intval($bytes);
} catch (TypeError $ex) {
@ -54,6 +55,11 @@ function random_bytes($bytes)
}
$buf = '';
if (!class_exists('COM')) {
throw new Error(
'COM does not exist'
);
}
$util = new COM('CAPICOM.Utilities.1');
$execCount = 0;
@ -78,4 +84,5 @@ function random_bytes($bytes)
throw new Exception(
'Could not gather sufficient random data'
);
}
}

35
src/wp-includes/random_compat/random_bytes_dev_urandom.php
View File

@ -5,7 +5,7 @@
*
* The MIT License (MIT)
*
* Copyright (c) 2015 Paragon Initiative Enterprises
* Copyright (c) 2015 - 2017 Paragon Initiative Enterprises
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
@ -30,7 +30,8 @@ if (!defined('RANDOM_COMPAT_READ_BUFFER')) {
define('RANDOM_COMPAT_READ_BUFFER', 8);
}
/**
if (!is_callable('random_bytes')) {
/**
* Unless open_basedir is enabled, use /dev/urandom for
* random numbers in accordance with best practices
*
@ -43,8 +44,8 @@ if (!defined('RANDOM_COMPAT_READ_BUFFER')) {
*
* @return string
*/
function random_bytes($bytes)
{
function random_bytes($bytes)
{
static $fp = null;
/**
* This block should only be run once
@ -72,10 +73,10 @@ function random_bytes($bytes)
*
* stream_set_read_buffer returns 0 on success
*/
if (function_exists('stream_set_read_buffer')) {
if (is_callable('stream_set_read_buffer')) {
stream_set_read_buffer($fp, RANDOM_COMPAT_READ_BUFFER);
}
if (function_exists('stream_set_chunk_size')) {
if (is_callable('stream_set_chunk_size')) {
stream_set_chunk_size($fp, RANDOM_COMPAT_READ_BUFFER);
}
}
@ -103,33 +104,50 @@ function random_bytes($bytes)
* page load.
*/
if (!empty($fp)) {
/**
* @var int
*/
$remaining = $bytes;
/**
* @var string|bool
*/
$buf = '';
/**
* We use fread() in a loop to protect against partial reads
*/
do {
/**
* @var string|bool
*/
$read = fread($fp, $remaining);
if (!is_string($read)) {
if ($read === false) {
/**
* We cannot safely read from the file. Exit the
* do-while loop and trigger the exception condition
*
* @var string|bool
*/
$buf = false;
break;
}
}
/**
* Decrease the number of bytes returned from remaining
*/
$remaining -= RandomCompat_strlen($read);
$buf .= $read;
/**
* @var string|bool
*/
$buf = $buf . $read;
} while ($remaining > 0);
/**
* Is our result valid?
*/
if ($buf !== false) {
if (is_string($buf)) {
if (RandomCompat_strlen($buf) === $bytes) {
/**
* Return our random entropy buffer here:
@ -145,4 +163,5 @@ function random_bytes($bytes)
throw new Exception(
'Error reading from source device'
);
}
}

10
src/wp-includes/random_compat/random_bytes_libsodium.php
View File

@ -5,7 +5,7 @@
*
* The MIT License (MIT)
*
* Copyright (c) 2015 Paragon Initiative Enterprises
* Copyright (c) 2015 - 2017 Paragon Initiative Enterprises
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
@ -26,7 +26,8 @@
* SOFTWARE.
*/
/**
if (!is_callable('random_bytes')) {
/**
* If the libsodium PHP extension is loaded, we'll use it above any other
* solution.
*
@ -39,8 +40,8 @@
*
* @return string
*/
function random_bytes($bytes)
{
function random_bytes($bytes)
{
try {
$bytes = RandomCompat_intval($bytes);
} catch (TypeError $ex) {
@ -83,4 +84,5 @@ function random_bytes($bytes)
throw new Exception(
'Could not gather sufficient random data'
);
}
}

22
src/wp-includes/random_compat/random_bytes_libsodium_legacy.php
View File

@ -5,7 +5,7 @@
*
* The MIT License (MIT)
*
* Copyright (c) 2015 Paragon Initiative Enterprises
* Copyright (c) 2015 - 2017 Paragon Initiative Enterprises
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
@ -26,7 +26,8 @@
* SOFTWARE.
*/
/**
if (!is_callable('random_bytes')) {
/**
* If the libsodium PHP extension is loaded, we'll use it above any other
* solution.
*
@ -39,8 +40,8 @@
*
* @return string
*/
function random_bytes($bytes)
{
function random_bytes($bytes)
{
try {
$bytes = RandomCompat_intval($bytes);
} catch (TypeError $ex) {
@ -55,23 +56,27 @@ function random_bytes($bytes)
);
}
/**
* @var string
*/
$buf = '';
/**
* \Sodium\randombytes_buf() doesn't allow more than 2147483647 bytes to be
* generated in one invocation.
*/
if ($bytes > 2147483647) {
$buf = '';
for ($i = 0; $i < $bytes; $i += 1073741824) {
$n = ($bytes - $i) > 1073741824
? 1073741824
: $bytes - $i;
$buf .= Sodium::randombytes_buf($n);
$buf .= Sodium::randombytes_buf((int) $n);
}
} else {
$buf = Sodium::randombytes_buf($bytes);
$buf .= Sodium::randombytes_buf((int) $bytes);
}
if ($buf !== false) {
if (is_string($buf)) {
if (RandomCompat_strlen($buf) === $bytes) {
return $buf;
}
@ -83,4 +88,5 @@ function random_bytes($bytes)
throw new Exception(
'Could not gather sufficient random data'
);
}
}

11
src/wp-includes/random_compat/random_bytes_mcrypt.php
View File

@ -5,7 +5,7 @@
*
* The MIT License (MIT)
*
* Copyright (c) 2015 Paragon Initiative Enterprises
* Copyright (c) 2015 - 2017 Paragon Initiative Enterprises
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
@ -26,8 +26,8 @@
* SOFTWARE.
*/
/**
if (!is_callable('random_bytes')) {
/**
* Powered by ext/mcrypt (and thankfully NOT libmcrypt)
*
* @ref https://bugs.php.net/bug.php?id=55169
@ -39,8 +39,8 @@
*
* @return string
*/
function random_bytes($bytes)
{
function random_bytes($bytes)
{
try {
$bytes = RandomCompat_intval($bytes);
} catch (TypeError $ex) {
@ -73,4 +73,5 @@ function random_bytes($bytes)
throw new Exception(
'Could not gather sufficient random data'
);
}
}

83
src/wp-includes/random_compat/random_bytes_openssl.php
View File

@ -1,83 +0,0 @@
<?php
/**
* Random_* Compatibility Library
* for using the new PHP 7 random_* API in PHP 5 projects
*
* The MIT License (MIT)
*
* Copyright (c) 2015 Paragon Initiative Enterprises
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission 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.
*/
/**
* Since openssl_random_pseudo_bytes() uses openssl's
* RAND_pseudo_bytes() API, which has been marked as deprecated by the
* OpenSSL team, this is our last resort before failure.
*
* @ref https://www.openssl.org/docs/crypto/RAND_bytes.html
*
* @param int $bytes
*
* @throws Exception
*
* @return string
*/
function random_bytes($bytes)
{
try {
$bytes = RandomCompat_intval($bytes);
} catch (TypeError $ex) {
throw new TypeError(
'random_bytes(): $bytes must be an integer'
);
}
if ($bytes < 1) {
throw new Error(
'Length must be greater than 0'
);
}
/**
* $secure is passed by reference. If it's set to false, fail. Note
* that this will only return false if this function fails to return
* any data.
*
* @ref https://github.com/paragonie/random_compat/issues/6#issuecomment-119564973
*/
$secure = true;
$buf = openssl_random_pseudo_bytes($bytes, $secure);
if (
$buf !== false
&&
$secure
&&
RandomCompat_strlen($buf) === $bytes
) {
return $buf;
}
/**
* If we reach here, PHP has failed us.
*/
throw new Exception(
'Could not gather sufficient random data'
);
}

23
src/wp-includes/random_compat/random_int.php
View File

@ -1,11 +1,13 @@
<?php
/**
if (!is_callable('random_int')) {
/**
* Random_* Compatibility Library
* for using the new PHP 7 random_* API in PHP 5 projects
*
* The MIT License (MIT)
*
* Copyright (c) 2015 Paragon Initiative Enterprises
* Copyright (c) 2015 - 2017 Paragon Initiative Enterprises
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
@ -26,7 +28,7 @@
* SOFTWARE.
*/
/**
/**
* Fetch a random integer between $min and $max inclusive
*
* @param int $min
@ -36,8 +38,8 @@
*
* @return int
*/
function random_int($min, $max)
{
function random_int($min, $max)
{
/**
* Type and input logic checks
*
@ -76,7 +78,7 @@ function random_int($min, $max)
}
if ($max === $min) {
return $min;
return (int) $min;
}
/**
@ -132,6 +134,7 @@ function random_int($min, $max)
$valueShift = $min;
}
$val = 0;
/**
* Now that we have our parameters set up, let's begin generating
* random integers until one falls between $min and $max
@ -151,11 +154,6 @@ function random_int($min, $max)
* Let's grab the necessary number of random bytes
*/
$randomByteString = random_bytes($bytes);
if ($randomByteString === false) {
throw new Exception(
'Random number generator failure'
);
}
/**
* Let's turn $randomByteString into an integer
@ -167,7 +165,7 @@ function random_int($min, $max)
* 159 + 27904 + 3276800 + 201326592 =>
* 204631455
*/
$val = 0;
$val &= 0;
for ($i = 0; $i < $bytes; ++$i) {
$val |= ord($randomByteString[$i]) << ($i * 8);
}
@ -188,4 +186,5 @@ function random_int($min, $max)
} while (!is_int($val) || $val > $max || $val < $min);
return (int) $val;
}
}