Verzeichnisstruktur phpBB-3.2.0
- Veröffentlicht
- 06.01.2017
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Bootup.php
001 <?php
002
003 /*
004 * Copyright (C) 2016 Nicolas Grekas - p@tchwork.com
005 *
006 * This library is free software; you can redistribute it and/or modify it
007 * under the terms of the (at your option):
008 * Apache License v2.0 (http://apache.org/licenses/LICENSE-2.0.txt), or
009 * GNU General Public License v2.0 (http://gnu.org/licenses/gpl-2.0.txt).
010 */
011
012 namespace Patchwork\Utf8;
013
014 use Normalizer as n;
015 use Patchwork\Utf8 as u;
016 use Patchwork\PHP\Shim as s;
017
018 class Bootup
019 {
020 public static function initAll()
021 {
022 ini_set('default_charset', 'UTF-8');
023
024 self::initUtf8Encode();
025 self::initIconv();
026 self::initMbstring();
027 self::initExif();
028 self::initIntl();
029 self::initLocale();
030 }
031
032 public static function initUtf8Encode()
033 {
034 function_exists('utf8_encode') or require __DIR__.'/Bootup/utf8_encode.php';
035 }
036
037 public static function initMbstring()
038 {
039 if (extension_loaded('mbstring')) {
040 if (((int) ini_get('mbstring.encoding_translation') || in_array(strtolower(ini_get('mbstring.encoding_translation')), array('on', 'yes', 'true')))
041 && !in_array(strtolower(ini_get('mbstring.http_input')), array('pass', '8bit', 'utf-8'))) {
042 user_error('php.ini settings: Please disable mbstring.encoding_translation or set mbstring.http_input to "pass"', E_USER_WARNING);
043 }
044
045 if (MB_OVERLOAD_STRING & (int) ini_get('mbstring.func_overload')) {
046 user_error('php.ini settings: Please disable mbstring.func_overload', E_USER_WARNING);
047 }
048
049 if (function_exists('mb_regex_encoding')) {
050 mb_regex_encoding('UTF-8');
051 }
052 ini_set('mbstring.script_encoding', 'pass');
053
054 if ('utf-8' !== strtolower(mb_internal_encoding())) {
055 mb_internal_encoding('UTF-8');
056 }
057
058 if ('none' !== strtolower(mb_substitute_character())) {
059 mb_substitute_character('none');
060 }
061
062 if (!in_array(strtolower(mb_http_output()), array('pass', '8bit'))) {
063 mb_http_output('pass');
064 }
065
066 if (!in_array(strtolower(mb_language()), array('uni', 'neutral'))) {
067 mb_language('uni');
068 }
069 } elseif (!function_exists('mb_strlen')) {
070 extension_loaded('iconv') or static::initIconv();
071
072 require __DIR__.'/Bootup/mbstring.php';
073 }
074 }
075
076 public static function initIconv()
077 {
078 if (extension_loaded('iconv')) {
079 if ('UTF-8' !== strtoupper(iconv_get_encoding('input_encoding'))) {
080 iconv_set_encoding('input_encoding', 'UTF-8');
081 }
082
083 if ('UTF-8' !== strtoupper(iconv_get_encoding('internal_encoding'))) {
084 iconv_set_encoding('internal_encoding', 'UTF-8');
085 }
086
087 if ('UTF-8' !== strtoupper(iconv_get_encoding('output_encoding'))) {
088 iconv_set_encoding('output_encoding', 'UTF-8');
089 }
090 } elseif (!function_exists('iconv')) {
091 require __DIR__.'/Bootup/iconv.php';
092 }
093 }
094
095 public static function initExif()
096 {
097 if (extension_loaded('exif')) {
098 if (ini_get('exif.encode_unicode') && 'UTF-8' !== strtoupper(ini_get('exif.encode_unicode'))) {
099 ini_set('exif.encode_unicode', 'UTF-8');
100 }
101
102 if (ini_get('exif.encode_jis') && 'UTF-8' !== strtoupper(ini_get('exif.encode_jis'))) {
103 ini_set('exif.encode_jis', 'UTF-8');
104 }
105 }
106 }
107
108 public static function initIntl()
109 {
110 if (defined('GRAPHEME_CLUSTER_RX')) {
111 return;
112 }
113
114 define('GRAPHEME_CLUSTER_RX', PCRE_VERSION >= '8.32' ? '\X' : s\Intl::GRAPHEME_CLUSTER_RX);
115
116 if (!function_exists('grapheme_strlen')) {
117 extension_loaded('iconv') or static::initIconv();
118 extension_loaded('mbstring') or static::initMbstring();
119
120 require __DIR__.'/Bootup/intl.php';
121 }
122 }
123
124 public static function initLocale()
125 {
126 // With non-UTF-8 locale, basename() bugs.
127 // Be aware that setlocale() can be slow.
128 // You'd better properly configure your LANG environment variable to an UTF-8 locale.
129
130 if ('' === basename('§')) {
131 setlocale(LC_ALL, 'C.UTF-8', 'C');
132 setlocale(LC_CTYPE, 'en_US.UTF-8', 'fr_FR.UTF-8', 'es_ES.UTF-8', 'de_DE.UTF-8', 'ru_RU.UTF-8', 'pt_BR.UTF-8', 'it_IT.UTF-8', 'ja_JP.UTF-8', 'zh_CN.UTF-8', '0');
133 }
134 }
135
136 public static function filterRequestUri($uri = null, $exit = true)
137 {
138 if (!isset($uri)) {
139 if (!isset($_SERVER['REQUEST_URI'])) {
140 return;
141 } else {
142 $uri = $_SERVER['REQUEST_URI'];
143 }
144 }
145
146 // Ensures the URL is well formed UTF-8
147 // When not, assumes Windows-1252 and redirects to the corresponding UTF-8 encoded URL
148
149 if (!preg_match('//u', urldecode($uri))) {
150 $uri = preg_replace_callback(
151 '/[\x80-\xFF]+/',
152 function ($m) {return urlencode($m[0]);},
153 $uri
154 );
155
156 $uri = preg_replace_callback(
157 '/(?:%[89A-F][0-9A-F])+/i',
158 function ($m) {return urlencode(u::utf8_encode(urldecode($m[0])));},
159 $uri
160 );
161
162 if ($exit) {
163 header('HTTP/1.1 301 Moved Permanently');
164 header('Location: '.$uri);
165
166 exit; // TODO: remove this in 1.2 (BC)
167 }
168 }
169
170 return $uri;
171 }
172
173 public static function filterRequestInputs($normalization_form = 4 /* n::NFC */, $leading_combining = '◌')
174 {
175 // Ensures inputs are well formed UTF-8
176 // When not, assumes Windows-1252 and converts to UTF-8
177 // Tests only values, not keys
178
179 $a = array(&$_FILES, &$_ENV, &$_GET, &$_POST, &$_COOKIE, &$_SERVER, &$_REQUEST);
180
181 foreach ($a[0] as &$r) {
182 $a[] = array(&$r['name'], &$r['type']);
183 }
184 unset($a[0]);
185
186 $len = count($a) + 1;
187 for ($i = 1; $i < $len; ++$i) {
188 foreach ($a[$i] as &$r) {
189 $s = $r; // $r is a ref, $s a copy
190 if (is_array($s)) {
191 $a[$len++] = &$r;
192 } else {
193 $r = static::filterString($s, $normalization_form, $leading_combining);
194 }
195 }
196
197 unset($a[$i]);
198 }
199 }
200
201 public static function filterString($s, $normalization_form = 4 /* n::NFC */, $leading_combining = '◌')
202 {
203 if (false !== strpos($s, "\r")) {
204 // Workaround https://bugs.php.net/65732
205 $s = str_replace("\r\n", "\n", $s);
206 $s = strtr($s, "\r", "\n");
207 }
208
209 if (preg_match('/[\x80-\xFF]/', $s)) {
210 if (n::isNormalized($s, $normalization_form)) {
211 $n = '-';
212 } else {
213 $n = n::normalize($s, $normalization_form);
214 if (isset($n[0])) {
215 $s = $n;
216 } else {
217 $s = u::utf8_encode($s);
218 }
219 }
220
221 if ($s[0] >= "\x80" && isset($n[0], $leading_combining[0]) && preg_match('/^\p{Mn}/u', $s)) {
222 // Prevent leading combining chars
223 // for NFC-safe concatenations.
224 $s = $leading_combining.$s;
225 }
226 }
227
228 return $s;
229 }
230 }
231