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authorNicolas LÅ“uillet <nicolas@loeuillet.org>2014-02-21 15:57:10 +0100
committerNicolas LÅ“uillet <nicolas@loeuillet.org>2014-02-21 15:57:10 +0100
commit99679d06884120c57f43b44e55e03595f1f87bed (patch)
treea3f2a1aa1afdaeca1386d0c6e8a75344fd2241fb /inc/3rdparty/htmlpurifier/HTMLPurifier/Bootstrap.php
parent655214ab30ee84884dc408488b85586f36263fcb (diff)
parentd3b47e94705e17b3ba3529cbb1dc6efe69c5d2b7 (diff)
downloadwallabag-99679d06884120c57f43b44e55e03595f1f87bed.tar.gz
wallabag-99679d06884120c57f43b44e55e03595f1f87bed.tar.zst
wallabag-99679d06884120c57f43b44e55e03595f1f87bed.zip
Merge pull request #481 from wallabag/dev1.5.2
1.5.2
Diffstat (limited to 'inc/3rdparty/htmlpurifier/HTMLPurifier/Bootstrap.php')
-rw-r--r--inc/3rdparty/htmlpurifier/HTMLPurifier/Bootstrap.php124
1 files changed, 124 insertions, 0 deletions
diff --git a/inc/3rdparty/htmlpurifier/HTMLPurifier/Bootstrap.php b/inc/3rdparty/htmlpurifier/HTMLPurifier/Bootstrap.php
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1<?php
2
3// constants are slow, so we use as few as possible
4if (!defined('HTMLPURIFIER_PREFIX')) {
5 define('HTMLPURIFIER_PREFIX', realpath(dirname(__FILE__) . '/..'));
6}
7
8// accomodations for versions earlier than 5.0.2
9// borrowed from PHP_Compat, LGPL licensed, by Aidan Lister <aidan@php.net>
10if (!defined('PHP_EOL')) {
11 switch (strtoupper(substr(PHP_OS, 0, 3))) {
12 case 'WIN':
13 define('PHP_EOL', "\r\n");
14 break;
15 case 'DAR':
16 define('PHP_EOL', "\r");
17 break;
18 default:
19 define('PHP_EOL', "\n");
20 }
21}
22
23/**
24 * Bootstrap class that contains meta-functionality for HTML Purifier such as
25 * the autoload function.
26 *
27 * @note
28 * This class may be used without any other files from HTML Purifier.
29 */
30class HTMLPurifier_Bootstrap
31{
32
33 /**
34 * Autoload function for HTML Purifier
35 * @param string $class Class to load
36 * @return bool
37 */
38 public static function autoload($class)
39 {
40 $file = HTMLPurifier_Bootstrap::getPath($class);
41 if (!$file) {
42 return false;
43 }
44 // Technically speaking, it should be ok and more efficient to
45 // just do 'require', but Antonio Parraga reports that with
46 // Zend extensions such as Zend debugger and APC, this invariant
47 // may be broken. Since we have efficient alternatives, pay
48 // the cost here and avoid the bug.
49 require_once HTMLPURIFIER_PREFIX . '/' . $file;
50 return true;
51 }
52
53 /**
54 * Returns the path for a specific class.
55 * @param string $class Class path to get
56 * @return string
57 */
58 public static function getPath($class)
59 {
60 if (strncmp('HTMLPurifier', $class, 12) !== 0) {
61 return false;
62 }
63 // Custom implementations
64 if (strncmp('HTMLPurifier_Language_', $class, 22) === 0) {
65 $code = str_replace('_', '-', substr($class, 22));
66 $file = 'HTMLPurifier/Language/classes/' . $code . '.php';
67 } else {
68 $file = str_replace('_', '/', $class) . '.php';
69 }
70 if (!file_exists(HTMLPURIFIER_PREFIX . '/' . $file)) {
71 return false;
72 }
73 return $file;
74 }
75
76 /**
77 * "Pre-registers" our autoloader on the SPL stack.
78 */
79 public static function registerAutoload()
80 {
81 $autoload = array('HTMLPurifier_Bootstrap', 'autoload');
82 if (($funcs = spl_autoload_functions()) === false) {
83 spl_autoload_register($autoload);
84 } elseif (function_exists('spl_autoload_unregister')) {
85 if (version_compare(PHP_VERSION, '5.3.0', '>=')) {
86 // prepend flag exists, no need for shenanigans
87 spl_autoload_register($autoload, true, true);
88 } else {
89 $buggy = version_compare(PHP_VERSION, '5.2.11', '<');
90 $compat = version_compare(PHP_VERSION, '5.1.2', '<=') &&
91 version_compare(PHP_VERSION, '5.1.0', '>=');
92 foreach ($funcs as $func) {
93 if ($buggy && is_array($func)) {
94 // :TRICKY: There are some compatibility issues and some
95 // places where we need to error out
96 $reflector = new ReflectionMethod($func[0], $func[1]);
97 if (!$reflector->isStatic()) {
98 throw new Exception(
99 'HTML Purifier autoloader registrar is not compatible
100 with non-static object methods due to PHP Bug #44144;
101 Please do not use HTMLPurifier.autoload.php (or any
102 file that includes this file); instead, place the code:
103 spl_autoload_register(array(\'HTMLPurifier_Bootstrap\', \'autoload\'))
104 after your own autoloaders.'
105 );
106 }
107 // Suprisingly, spl_autoload_register supports the
108 // Class::staticMethod callback format, although call_user_func doesn't
109 if ($compat) {
110 $func = implode('::', $func);
111 }
112 }
113 spl_autoload_unregister($func);
114 }
115 spl_autoload_register($autoload);
116 foreach ($funcs as $func) {
117 spl_autoload_register($func);
118 }
119 }
120 }
121 }
122}
123
124// vim: et sw=4 sts=4