Verzeichnisstruktur phpBB-3.2.0
- Veröffentlicht
- 06.01.2017
So funktioniert es
|
|
Auf das letzte Element klicken. Dies geht jeweils ein Schritt zurück |
Auf das Icon klicken, dies öffnet das Verzeichnis. Nochmal klicken schließt das Verzeichnis. |
|
|
(Beispiel Datei-Icons)
|
Auf das Icon klicken um den Quellcode anzuzeigen |
random.php
001 <?php
002 /**
003 * Random_* Compatibility Library
004 * for using the new PHP 7 random_* API in PHP 5 projects
005 *
006 * @version 1.4.1
007 * @released 2016-03-18
008 *
009 * The MIT License (MIT)
010 *
011 * Copyright (c) 2015 Paragon Initiative Enterprises
012 *
013 * Permission is hereby granted, free of charge, to any person obtaining a copy
014 * of this software and associated documentation files (the "Software"), to deal
015 * in the Software without restriction, including without limitation the rights
016 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
017 * copies of the Software, and to permit persons to whom the Software is
018 * furnished to do so, subject to the following conditions:
019 *
020 * The above copyright notice and this permission notice shall be included in
021 * all copies or substantial portions of the Software.
022 *
023 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
024 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
025 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
026 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
027 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
028 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
029 * SOFTWARE.
030 */
031
032 if (!defined('PHP_VERSION_ID')) {
033 // This constant was introduced in PHP 5.2.7
034 $RandomCompatversion = explode('.', PHP_VERSION);
035 define(
036 'PHP_VERSION_ID',
037 $RandomCompatversion[0] * 10000
038 + $RandomCompatversion[1] * 100
039 + $RandomCompatversion[2]
040 );
041 $RandomCompatversion = null;
042 }
043
044 if (PHP_VERSION_ID < 70000) {
045
046 if (!defined('RANDOM_COMPAT_READ_BUFFER')) {
047 define('RANDOM_COMPAT_READ_BUFFER', 8);
048 }
049
050 $RandomCompatDIR = dirname(__FILE__);
051
052 require_once $RandomCompatDIR.'/byte_safe_strings.php';
053 require_once $RandomCompatDIR.'/cast_to_int.php';
054 require_once $RandomCompatDIR.'/error_polyfill.php';
055
056 if (!function_exists('random_bytes')) {
057 /**
058 * PHP 5.2.0 - 5.6.x way to implement random_bytes()
059 *
060 * We use conditional statements here to define the function in accordance
061 * to the operating environment. It's a micro-optimization.
062 *
063 * In order of preference:
064 * 1. Use libsodium if available.
065 * 2. fread() /dev/urandom if available (never on Windows)
066 * 3. mcrypt_create_iv($bytes, MCRYPT_DEV_URANDOM)
067 * 4. COM('CAPICOM.Utilities.1')->GetRandom()
068 * 5. openssl_random_pseudo_bytes() (absolute last resort)
069 *
070 * See ERRATA.md for our reasoning behind this particular order
071 */
072 if (extension_loaded('libsodium')) {
073 // See random_bytes_libsodium.php
074 if (PHP_VERSION_ID >= 50300 && function_exists('\\Sodium\\randombytes_buf')) {
075 require_once $RandomCompatDIR.'/random_bytes_libsodium.php';
076 } elseif (method_exists('Sodium', 'randombytes_buf')) {
077 require_once $RandomCompatDIR.'/random_bytes_libsodium_legacy.php';
078 }
079 }
080
081 /**
082 * Reading directly from /dev/urandom:
083 */
084 if (DIRECTORY_SEPARATOR === '/') {
085 // DIRECTORY_SEPARATOR === '/' on Unix-like OSes -- this is a fast
086 // way to exclude Windows.
087 $RandomCompatUrandom = true;
088 $RandomCompat_basedir = ini_get('open_basedir');
089
090 if (!empty($RandomCompat_basedir)) {
091 $RandomCompat_open_basedir = explode(
092 PATH_SEPARATOR,
093 strtolower($RandomCompat_basedir)
094 );
095 $RandomCompatUrandom = (array() !== array_intersect(
096 array('/dev', '/dev/', '/dev/urandom'),
097 $RandomCompat_open_basedir
098 ));
099 $RandomCompat_open_basedir = null;
100 }
101
102 if (
103 !function_exists('random_bytes')
104 &&
105 $RandomCompatUrandom
106 &&
107 @is_readable('/dev/urandom')
108 ) {
109 // Error suppression on is_readable() in case of an open_basedir
110 // or safe_mode failure. All we care about is whether or not we
111 // can read it at this point. If the PHP environment is going to
112 // panic over trying to see if the file can be read in the first
113 // place, that is not helpful to us here.
114
115 // See random_bytes_dev_urandom.php
116 require_once $RandomCompatDIR.'/random_bytes_dev_urandom.php';
117 }
118 // Unset variables after use
119 $RandomCompat_basedir = null;
120 } else {
121 $RandomCompatUrandom = false;
122 }
123
124 /**
125 * mcrypt_create_iv()
126 */
127 if (
128 !function_exists('random_bytes')
129 &&
130 PHP_VERSION_ID >= 50307
131 &&
132 extension_loaded('mcrypt')
133 &&
134 (DIRECTORY_SEPARATOR !== '/' || $RandomCompatUrandom)
135 ) {
136 // Prevent this code from hanging indefinitely on non-Windows;
137 // see https://bugs.php.net/bug.php?id=69833
138 if (
139 DIRECTORY_SEPARATOR !== '/' ||
140 (PHP_VERSION_ID <= 50609 || PHP_VERSION_ID >= 50613)
141 ) {
142 // See random_bytes_mcrypt.php
143 require_once $RandomCompatDIR.'/random_bytes_mcrypt.php';
144 }
145 }
146 $RandomCompatUrandom = null;
147
148 if (
149 !function_exists('random_bytes')
150 &&
151 extension_loaded('com_dotnet')
152 &&
153 class_exists('COM')
154 ) {
155 $RandomCompat_disabled_classes = preg_split(
156 '#\s*,\s*#',
157 strtolower(ini_get('disable_classes'))
158 );
159
160 if (!in_array('com', $RandomCompat_disabled_classes)) {
161 try {
162 $RandomCompatCOMtest = new COM('CAPICOM.Utilities.1');
163 if (method_exists($RandomCompatCOMtest, 'GetRandom')) {
164 // See random_bytes_com_dotnet.php
165 require_once $RandomCompatDIR.'/random_bytes_com_dotnet.php';
166 }
167 } catch (com_exception $e) {
168 // Don't try to use it.
169 }
170 }
171 $RandomCompat_disabled_classes = null;
172 $RandomCompatCOMtest = null;
173 }
174
175 /**
176 * openssl_random_pseudo_bytes()
177 */
178 if (
179 (
180 // Unix-like with PHP >= 5.3.0 or
181 (
182 DIRECTORY_SEPARATOR === '/'
183 &&
184 PHP_VERSION_ID >= 50300
185 )
186 ||
187 // Windows with PHP >= 5.4.1
188 PHP_VERSION_ID >= 50401
189 )
190 &&
191 !function_exists('random_bytes')
192 &&
193 extension_loaded('openssl')
194 ) {
195 // See random_bytes_openssl.php
196 require_once $RandomCompatDIR.'/random_bytes_openssl.php';
197 }
198
199 /**
200 * throw new Exception
201 */
202 if (!function_exists('random_bytes')) {
203 /**
204 * We don't have any more options, so let's throw an exception right now
205 * and hope the developer won't let it fail silently.
206 */
207 function random_bytes($length)
208 {
209 throw new Exception(
210 'There is no suitable CSPRNG installed on your system'
211 );
212 }
213 }
214 }
215
216 if (!function_exists('random_int')) {
217 require_once $RandomCompatDIR.'/random_int.php';
218 }
219
220 $RandomCompatDIR = null;
221 }
222