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ccd27f54 S |
1 | <?php |
2 | /** | |
3 | * Smarty Autoloader | |
4 | * | |
5 | * @package Smarty | |
6 | */ | |
7 | ||
8 | /** | |
9 | * Smarty Autoloader | |
10 | * | |
11 | * @package Smarty | |
12 | * @author Uwe Tews | |
13 | * Usage: | |
14 | * require_once '...path/Autoloader.php'; | |
15 | * Smarty_Autoloader::register(); | |
16 | * $smarty = new Smarty(); | |
17 | * Note: This autoloader is not needed if you use Composer. | |
18 | * Composer will automatically add the classes of the Smarty package to it common autoloader. | |
19 | */ | |
20 | class Smarty_Autoloader | |
21 | { | |
22 | /** | |
23 | * Filepath to Smarty root | |
24 | * | |
25 | * @var string | |
26 | */ | |
27 | public static $SMARTY_DIR = ''; | |
28 | /** | |
29 | * Filepath to Smarty internal plugins | |
30 | * | |
31 | * @var string | |
32 | */ | |
33 | public static $SMARTY_SYSPLUGINS_DIR = ''; | |
34 | /** | |
35 | * Array of not existing classes to avoid is_file calls for already tested classes | |
36 | * | |
37 | * @var array | |
38 | */ | |
39 | public static $unknown = array(); | |
40 | /** | |
41 | * Array with Smarty core classes and their filename | |
42 | * | |
43 | * @var array | |
44 | */ | |
45 | public static $rootClasses = array('Smarty' => 'Smarty.class.php', | |
46 | 'SmartyBC' => 'SmartyBC.class.php', | |
47 | ); | |
48 | ||
49 | private static $syspluginsClasses = array( | |
50 | 'smarty_config_source' => true, | |
51 | 'smarty_security' => true, | |
52 | 'smarty_cacheresource' => true, | |
53 | 'smarty_compiledresource' => true, | |
54 | 'smarty_cacheresource_custom' => true, | |
55 | 'smarty_cacheresource_keyvaluestore' => true, | |
56 | 'smarty_resource' => true, | |
57 | 'smarty_resource_custom' => true, | |
58 | 'smarty_resource_uncompiled' => true, | |
59 | 'smarty_resource_recompiled' => true, | |
60 | 'smarty_template_source' => true, | |
61 | 'smarty_template_compiled' => true, | |
62 | 'smarty_template_cached' => true, | |
74f18453 | 63 | 'smarty_template_config' => true, |
ccd27f54 S |
64 | 'smarty_data' => true, |
65 | 'smarty_variable' => true, | |
66 | 'smarty_undefined_variable' => true, | |
67 | 'smartyexception' => true, | |
68 | 'smartycompilerexception' => true, | |
69 | 'smarty_internal_data' => true, | |
70 | 'smarty_internal_template' => true, | |
71 | 'smarty_internal_templatebase' => true, | |
72 | 'smarty_internal_resource_file' => true, | |
73 | 'smarty_internal_resource_extends' => true, | |
74 | 'smarty_internal_resource_eval' => true, | |
75 | 'smarty_internal_resource_string' => true, | |
76 | 'smarty_internal_resource_registered' => true, | |
77 | 'smarty_internal_extension_codeframe' => true, | |
78 | 'smarty_internal_extension_config' => true, | |
79 | 'smarty_internal_filter_handler' => true, | |
80 | 'smarty_internal_function_call_handler' => true, | |
81 | 'smarty_internal_cacheresource_file' => true, | |
82 | 'smarty_internal_write_file' => true, | |
83 | ); | |
84 | ||
85 | /** | |
86 | * Registers Smarty_Autoloader backward compatible to older installations. | |
87 | * | |
88 | * @param bool $prepend Whether to prepend the autoloader or not. | |
89 | */ | |
90 | public static function registerBC($prepend = false) | |
91 | { | |
92 | /** | |
93 | * register the class autoloader | |
94 | */ | |
95 | if (!defined('SMARTY_SPL_AUTOLOAD')) { | |
96 | define('SMARTY_SPL_AUTOLOAD', 0); | |
97 | } | |
98 | if (SMARTY_SPL_AUTOLOAD && set_include_path(get_include_path() . PATH_SEPARATOR . SMARTY_SYSPLUGINS_DIR) !== false) { | |
99 | $registeredAutoLoadFunctions = spl_autoload_functions(); | |
100 | if (!isset($registeredAutoLoadFunctions['spl_autoload'])) { | |
101 | spl_autoload_register(); | |
102 | } | |
103 | } else { | |
104 | self::register($prepend); | |
105 | } | |
106 | } | |
107 | ||
108 | /** | |
109 | * Registers Smarty_Autoloader as an SPL autoloader. | |
110 | * | |
111 | * @param bool $prepend Whether to prepend the autoloader or not. | |
112 | */ | |
113 | public static function register($prepend = false) | |
114 | { | |
115 | self::$SMARTY_DIR = defined('SMARTY_DIR') ? SMARTY_DIR : dirname(__FILE__) . '/'; | |
116 | self::$SMARTY_SYSPLUGINS_DIR = defined('SMARTY_SYSPLUGINS_DIR') ? SMARTY_SYSPLUGINS_DIR : self::$SMARTY_DIR . 'sysplugins/'; | |
117 | if (version_compare(phpversion(), '5.3.0', '>=')) { | |
118 | spl_autoload_register(array(__CLASS__, 'autoload'), true, $prepend); | |
119 | } else { | |
120 | spl_autoload_register(array(__CLASS__, 'autoload')); | |
121 | } | |
122 | } | |
123 | ||
124 | /** | |
125 | * Handles autoloading of classes. | |
126 | * | |
127 | * @param string $class A class name. | |
128 | */ | |
129 | public static function autoload($class) | |
130 | { | |
131 | // Request for Smarty or already unknown class | |
132 | if (isset(self::$unknown[$class])) { | |
133 | return; | |
134 | } | |
135 | $_class = strtolower($class); | |
136 | if (isset(self::$syspluginsClasses[$_class])) { | |
137 | $_class = (self::$syspluginsClasses[$_class] === true) ? $_class : self::$syspluginsClasses[$_class]; | |
138 | $file = self::$SMARTY_SYSPLUGINS_DIR . $_class . '.php'; | |
139 | require_once $file; | |
140 | return; | |
141 | } elseif (0 !== strpos($_class, 'smarty_internal_')) { | |
142 | if (isset(self::$rootClasses[$class])) { | |
143 | $file = self::$SMARTY_DIR . self::$rootClasses[$class]; | |
144 | require_once $file; | |
145 | return; | |
146 | } | |
147 | self::$unknown[$class] = true; | |
148 | return; | |
149 | } | |
150 | $file = self::$SMARTY_SYSPLUGINS_DIR . $_class . '.php'; | |
151 | if (is_file($file)) { | |
152 | require_once $file; | |
153 | return; | |
154 | } | |
155 | self::$unknown[$class] = true; | |
156 | return; | |
157 | } | |
158 | } |