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| <?php | |
| /** | |
| * | |
| * This file is part of the phpBB Forum Software package. | |
| * | |
| * @copyright (c) phpBB Limited <https://www.phpbb.com> | |
| * @license GNU General Public License, version 2 (GPL-2.0) | |
| * | |
| * For full copyright and license information, please see | |
| * the docs/CREDITS.txt file. | |
| * | |
| */ | |
| namespace phpbb\request; | |
| /** | |
| * Replacement for a superglobal (like $_GET or $_POST) which calls | |
| * trigger_error on all operations but isset, overloads the [] operator with SPL. | |
| */ | |
| class deactivated_super_global implements \ArrayAccess, \Countable, \IteratorAggregate | |
| { | |
| /** | |
| * @var string Holds the name of the superglobal this is replacing. | |
| */ | |
| private $name; | |
| /** | |
| * @var string (\phpbb\request\request_interface::POST|GET|REQUEST|COOKIE) Super global constant. | |
| */ | |
| private $super_global; | |
| /** | |
| * @var \phpbb\request\request_interface The request class instance holding the actual request data. | |
| */ | |
| private $request; | |
| /** | |
| * Constructor generates an error message fitting the super global to be used within the other functions. | |
| * | |
| * @param \phpbb\request\request_interface $request A request class instance holding the real super global data. | |
| * @param string $name Name of the super global this is a replacement for - e.g. '_GET'. | |
| * @param string $super_global The variable's super global constant (\phpbb\request\request_interface::POST|GET|REQUEST|COOKIE). | |
| */ | |
| public function __construct(\phpbb\request\request_interface $request, $name, $super_global) | |
| { | |
| $this->request = $request; | |
| $this->name = $name; | |
| $this->super_global = $super_global; | |
| } | |
| /** | |
| * Calls trigger_error with the file and line number the super global was used in. | |
| */ | |
| private function error() | |
| { | |
| $file = ''; | |
| $line = 0; | |
| $message = 'Illegal use of $' . $this->name . '. You must use the request class to access input data. Found in %s on line %d. This error message was generated by deactivated_super_global.'; | |
| $backtrace = debug_backtrace(); | |
| if (isset($backtrace[1])) | |
| { | |
| $file = $backtrace[1]['file']; | |
| $line = $backtrace[1]['line']; | |
| } | |
| trigger_error(sprintf($message, $file, $line), E_USER_ERROR); | |
| } | |
| /** | |
| * Redirects isset to the correct request class call. | |
| * | |
| * @param string $offset The key of the super global being accessed. | |
| * | |
| * @return bool Whether the key on the super global exists. | |
| */ | |
| public function offsetExists($offset) | |
| { | |
| return $this->request->is_set($offset, $this->super_global); | |
| } | |
| /**#@+ | |
| * Part of the \ArrayAccess implementation, will always result in a FATAL error. | |
| */ | |
| public function offsetGet($offset) | |
| { | |
| $this->error(); | |
| } | |
| public function offsetSet($offset, $value) | |
| { | |
| $this->error(); | |
| } | |
| public function offsetUnset($offset) | |
| { | |
| $this->error(); | |
| } | |
| /**#@-*/ | |
| /** | |
| * Part of the \Countable implementation, will always result in a FATAL error | |
| */ | |
| public function count() | |
| { | |
| $this->error(); | |
| } | |
| /** | |
| * Part of the Traversable/IteratorAggregate implementation, will always result in a FATAL error | |
| */ | |
| public function getIterator() | |
| { | |
| $this->error(); | |
| } | |
| } |