00001 <?php
00030 class Zend_Loader
00031 {
00052 public static function loadClass($class, $dirs = null)
00053 {
00054 if (class_exists($class, false) || interface_exists($class, false)) {
00055 return;
00056 }
00057
00058 if ((null !== $dirs) && !is_string($dirs) && !is_array($dirs)) {
00059 require_once 'Zend/Exception.php';
00060 throw new Zend_Exception('Directory argument must be a string or an array');
00061 }
00062
00063
00064 $file = str_replace('_', DIRECTORY_SEPARATOR, $class) . '.php';
00065 if (!empty($dirs)) {
00066
00067 $dirPath = dirname($file);
00068 if (is_string($dirs)) {
00069 $dirs = explode(PATH_SEPARATOR, $dirs);
00070 }
00071 foreach ($dirs as $key => $dir) {
00072 if ($dir == '.') {
00073 $dirs[$key] = $dirPath;
00074 } else {
00075 $dir = rtrim($dir, '\\/');
00076 $dirs[$key] = $dir . DIRECTORY_SEPARATOR . $dirPath;
00077 }
00078 }
00079 $file = basename($file);
00080 self::loadFile($file, $dirs, true);
00081 } else {
00082 self::loadFile($file);
00083 }
00084
00085 if (!class_exists($class, false) && !interface_exists($class, false)) {
00086 require_once 'Zend/Exception.php';
00087 throw new Zend_Exception("File \"$file\" does not exist or class \"$class\" was not found in the file");
00088 }
00089 }
00090
00114 public static function loadFile($filename, $dirs = null, $once = false)
00115 {
00116 self::_securityCheck($filename);
00117
00121 $incPath = false;
00122 if (!empty($dirs) && (is_array($dirs) || is_string($dirs))) {
00123 if (is_array($dirs)) {
00124 $dirs = implode(PATH_SEPARATOR, $dirs);
00125 }
00126 $incPath = get_include_path();
00127 set_include_path($dirs . PATH_SEPARATOR . $incPath);
00128 }
00129
00133 if ($once) {
00134 include_once $filename;
00135 } else {
00136 include $filename;
00137 }
00138
00142 if ($incPath) {
00143 set_include_path($incPath);
00144 }
00145
00146 return true;
00147 }
00148
00162 public static function isReadable($filename)
00163 {
00164 if (!$fh = @fopen($filename, 'r', true)) {
00165 return false;
00166 }
00167 @fclose($fh);
00168 return true;
00169 }
00170
00183 public static function autoload($class)
00184 {
00185 trigger_error(__CLASS__ . '::' . __METHOD__ . ' is deprecated as of 1.8.0 and will be removed with 2.0.0; use Zend_Loader_Autoloader instead', E_USER_NOTICE);
00186 try {
00187 @self::loadClass($class);
00188 return $class;
00189 } catch (Exception $e) {
00190 return false;
00191 }
00192 }
00193
00204 public static function registerAutoload($class = 'Zend_Loader', $enabled = true)
00205 {
00206 trigger_error(__CLASS__ . '::' . __METHOD__ . ' is deprecated as of 1.8.0 and will be removed with 2.0.0; use Zend_Loader_Autoloader instead', E_USER_NOTICE);
00207 require_once 'Zend/Loader/Autoloader.php';
00208 $autoloader = Zend_Loader_Autoloader::getInstance();
00209 $autoloader->setFallbackAutoloader(true);
00210
00211 if ('Zend_Loader' != $class) {
00212 self::loadClass($class);
00213 $methods = get_class_methods($class);
00214 if (!in_array('autoload', (array) $methods)) {
00215 require_once 'Zend/Exception.php';
00216 throw new Zend_Exception("The class \"$class\" does not have an autoload() method");
00217 }
00218
00219 $callback = array($class, 'autoload');
00220
00221 if ($enabled) {
00222 $autoloader->pushAutoloader($callback);
00223 } else {
00224 $autoloader->removeAutoloader($callback);
00225 }
00226 }
00227 }
00228
00236 protected static function _securityCheck($filename)
00237 {
00241 if (preg_match('/[^a-z0-9\\/\\\\_.:-]/i', $filename)) {
00242 require_once 'Zend/Exception.php';
00243 throw new Zend_Exception('Security check: Illegal character in filename');
00244 }
00245 }
00246
00261 protected static function _includeFile($filespec, $once = false)
00262 {
00263 if ($once) {
00264 return include_once $filespec;
00265 } else {
00266 return include $filespec ;
00267 }
00268 }
00269 }