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Diffstat (limited to 'library/vendor/Zend/Loader.php')
| -rw-r--r-- | library/vendor/Zend/Loader.php | 338 |
1 files changed, 338 insertions, 0 deletions
diff --git a/library/vendor/Zend/Loader.php b/library/vendor/Zend/Loader.php new file mode 100644 index 0000000..2952e81 --- /dev/null +++ b/library/vendor/Zend/Loader.php @@ -0,0 +1,338 @@ +<?php +/** + * Zend Framework + * + * LICENSE + * + * This source file is subject to the new BSD license that is bundled + * with this package in the file LICENSE.txt. + * It is also available through the world-wide-web at this URL: + * http://framework.zend.com/license/new-bsd + * If you did not receive a copy of the license and are unable to + * obtain it through the world-wide-web, please send an email + * to license@zend.com so we can send you a copy immediately. + * + * @category Zend + * @package Zend_Loader + * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com) + * @license http://framework.zend.com/license/new-bsd New BSD License + * @version $Id$ + */ + +/** + * Static methods for loading classes and files. + * + * @category Zend + * @package Zend_Loader + * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com) + * @license http://framework.zend.com/license/new-bsd New BSD License + */ +class Zend_Loader +{ + /** + * Loads a class from a PHP file. The filename must be formatted + * as "$class.php". + * + * If $dirs is a string or an array, it will search the directories + * in the order supplied, and attempt to load the first matching file. + * + * If $dirs is null, it will split the class name at underscores to + * generate a path hierarchy (e.g., "Zend_Example_Class" will map + * to "Zend/Example/Class.php"). + * + * If the file was not found in the $dirs, or if no $dirs were specified, + * it will attempt to load it from PHP's include_path. + * + * @param string $class - The full class name of a Zend component. + * @param string|array $dirs - OPTIONAL Either a path or an array of paths + * to search. + * @return void + * @throws Zend_Exception + */ + public static function loadClass($class, $dirs = null) + { + if (class_exists($class, false) || interface_exists($class, false)) { + return; + } + + if ((null !== $dirs) && !is_string($dirs) && !is_array($dirs)) { + throw new Zend_Exception('Directory argument must be a string or an array'); + } + + $file = self::standardiseFile($class); + + if (!empty($dirs)) { + // use the autodiscovered path + $dirPath = dirname($file); + if (is_string($dirs)) { + $dirs = explode(PATH_SEPARATOR, $dirs); + } + foreach ($dirs as $key => $dir) { + if ($dir == '.') { + $dirs[$key] = $dirPath; + } else { + $dir = rtrim($dir, '\\/'); + $dirs[$key] = $dir . DIRECTORY_SEPARATOR . $dirPath; + } + } + $file = basename($file); + self::loadFile($file, $dirs, true); + } else { + self::loadFile($file, null, true); + } + + if (!class_exists($class, false) && !interface_exists($class, false)) { + throw new Zend_Exception("File \"$file\" does not exist or class \"$class\" was not found in the file"); + } + } + + /** + * Loads a PHP file. This is a wrapper for PHP's include() function. + * + * $filename must be the complete filename, including any + * extension such as ".php". Note that a security check is performed that + * does not permit extended characters in the filename. This method is + * intended for loading Zend Framework files. + * + * If $dirs is a string or an array, it will search the directories + * in the order supplied, and attempt to load the first matching file. + * + * If the file was not found in the $dirs, or if no $dirs were specified, + * it will attempt to load it from PHP's include_path. + * + * If $once is TRUE, it will use include_once() instead of include(). + * + * @param string $filename + * @param string|array $dirs - OPTIONAL either a path or array of paths + * to search. + * @param boolean $once + * @return boolean + * @throws Zend_Exception + */ + public static function loadFile($filename, $dirs = null, $once = false) + { + self::_securityCheck($filename); + + /** + * Search in provided directories, as well as include_path + */ + $incPath = false; + if (!empty($dirs) && (is_array($dirs) || is_string($dirs))) { + if (is_array($dirs)) { + $dirs = implode(PATH_SEPARATOR, $dirs); + } + $incPath = get_include_path(); + set_include_path($dirs . PATH_SEPARATOR . $incPath); + } + + /** + * Try finding for the plain filename in the include_path. + */ + if ($once) { + include_once $filename; + } else { + include $filename; + } + + /** + * If searching in directories, reset include_path + */ + if ($incPath) { + set_include_path($incPath); + } + + return true; + } + + /** + * Returns TRUE if the $filename is readable, or FALSE otherwise. + * This function uses the PHP include_path, where PHP's is_readable() + * does not. + * + * Note from ZF-2900: + * If you use custom error handler, please check whether return value + * from error_reporting() is zero or not. + * At mark of fopen() can not suppress warning if the handler is used. + * + * @param string $filename + * @return boolean + */ + public static function isReadable($filename) + { + if (is_readable($filename)) { + // Return early if the filename is readable without needing the + // include_path + return true; + } + + if (strtoupper(substr(PHP_OS, 0, 3)) == 'WIN' + && preg_match('/^[a-z]:/i', $filename) + ) { + // If on windows, and path provided is clearly an absolute path, + // return false immediately + return false; + } + + foreach (self::explodeIncludePath() as $path) { + if ($path == '.') { + if (is_readable($filename)) { + return true; + } + continue; + } + $file = $path . '/' . $filename; + if (is_readable($file)) { + return true; + } + } + return false; + } + + /** + * Explode an include path into an array + * + * If no path provided, uses current include_path. Works around issues that + * occur when the path includes stream schemas. + * + * @param string|null $path + * @return array + */ + public static function explodeIncludePath($path = null) + { + if (null === $path) { + $path = get_include_path(); + } + + if (PATH_SEPARATOR == ':') { + // On *nix systems, include_paths which include paths with a stream + // schema cannot be safely explode'd, so we have to be a bit more + // intelligent in the approach. + $paths = preg_split('#:(?!//)#', $path); + } else { + $paths = explode(PATH_SEPARATOR, $path); + } + return $paths; + } + + /** + * spl_autoload() suitable implementation for supporting class autoloading. + * + * Attach to spl_autoload() using the following: + * <code> + * spl_autoload_register(array('Zend_Loader', 'autoload')); + * </code> + * + * @deprecated Since 1.8.0 + * @param string $class + * @return string|false Class name on success; false on failure + */ + public static function autoload($class) + { + 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); + try { + @self::loadClass($class); + return $class; + } catch (Exception $e) { + return false; + } + } + + /** + * Register {@link autoload()} with spl_autoload() + * + * @deprecated Since 1.8.0 + * @param string $class (optional) + * @param boolean $enabled (optional) + * @return void + * @throws Zend_Exception if spl_autoload() is not found + * or if the specified class does not have an autoload() method. + */ + public static function registerAutoload($class = 'Zend_Loader', $enabled = true) + { + 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); + $autoloader = Zend_Loader_Autoloader::getInstance(); + $autoloader->setFallbackAutoloader(true); + + if ('Zend_Loader' != $class) { + self::loadClass($class); + $methods = get_class_methods($class); + if (!in_array('autoload', (array) $methods)) { + throw new Zend_Exception("The class \"$class\" does not have an autoload() method"); + } + + $callback = array($class, 'autoload'); + + if ($enabled) { + $autoloader->pushAutoloader($callback); + } else { + $autoloader->removeAutoloader($callback); + } + } + } + + /** + * Ensure that filename does not contain exploits + * + * @param string $filename + * @return void + * @throws Zend_Exception + */ + protected static function _securityCheck($filename) + { + /** + * Security check + */ + if (preg_match('/[^a-z0-9\\/\\\\_.:-]/i', $filename)) { + throw new Zend_Exception('Security check: Illegal character in filename'); + } + } + + /** + * Attempt to include() the file. + * + * include() is not prefixed with the @ operator because if + * the file is loaded and contains a parse error, execution + * will halt silently and this is difficult to debug. + * + * Always set display_errors = Off on production servers! + * + * @param string $filespec + * @param boolean $once + * @return boolean + * @deprecated Since 1.5.0; use loadFile() instead + */ + protected static function _includeFile($filespec, $once = false) + { + if ($once) { + return include_once $filespec; + } else { + return include $filespec ; + } + } + + /** + * Standardise the filename. + * + * Convert the supplied filename into the namespace-aware standard, + * based on the Framework Interop Group reference implementation: + * http://groups.google.com/group/php-standards/web/psr-0-final-proposal + * + * The filename must be formatted as "$file.php". + * + * @param string $file - The file name to be loaded. + * @return string + */ + public static function standardiseFile($file) + { + $fileName = ltrim($file, '\\'); + $file = ''; + $namespace = ''; + if ($lastNsPos = strripos($fileName, '\\')) { + $namespace = substr($fileName, 0, $lastNsPos); + $fileName = substr($fileName, $lastNsPos + 1); + $file = str_replace('\\', DIRECTORY_SEPARATOR, $namespace) . DIRECTORY_SEPARATOR; + } + $file .= str_replace('_', DIRECTORY_SEPARATOR, $fileName) . '.php'; + return $file; + } +} |