Verzeichnisstruktur phpBB-3.1.0
- Veröffentlicht
- 27.10.2014
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deactivated_super_global.php
001 <?php
002 /**
003 *
004 * This file is part of the phpBB Forum Software package.
005 *
006 * @copyright (c) phpBB Limited <https://www.phpbb.com>
007 * @license GNU General Public License, version 2 (GPL-2.0)
008 *
009 * For full copyright and license information, please see
010 * the docs/CREDITS.txt file.
011 *
012 */
013
014 namespace phpbb\request;
015
016 /**
017 * Replacement for a superglobal (like $_GET or $_POST) which calls
018 * trigger_error on all operations but isset, overloads the [] operator with SPL.
019 */
020 class deactivated_super_global implements \ArrayAccess, \Countable, \IteratorAggregate
021 {
022 /**
023 * @var string Holds the name of the superglobal this is replacing.
024 */
025 private $name;
026
027 /**
028 * @var \phpbb\request\request_interface::POST|GET|REQUEST|COOKIE Super global constant.
029 */
030 private $super_global;
031
032 /**
033 * @var \phpbb\request\request_interface The request class instance holding the actual request data.
034 */
035 private $request;
036
037 /**
038 * Constructor generates an error message fitting the super global to be used within the other functions.
039 *
040 * @param \phpbb\request\request_interface $request A request class instance holding the real super global data.
041 * @param string $name Name of the super global this is a replacement for - e.g. '_GET'.
042 * @param \phpbb\request\request_interface::POST|GET|REQUEST|COOKIE $super_global The variable's super global constant.
043 */
044 public function __construct(\phpbb\request\request_interface $request, $name, $super_global)
045 {
046 $this->request = $request;
047 $this->name = $name;
048 $this->super_global = $super_global;
049 }
050
051 /**
052 * Calls trigger_error with the file and line number the super global was used in.
053 */
054 private function error()
055 {
056 $file = '';
057 $line = 0;
058
059 $message = 'Illegal use of $' . $this->name . '. You must use the request class or request_var() to access input data. Found in %s on line %d. This error message was generated by deactivated_super_global.';
060
061 $backtrace = debug_backtrace();
062 if (isset($backtrace[1]))
063 {
064 $file = $backtrace[1]['file'];
065 $line = $backtrace[1]['line'];
066 }
067 trigger_error(sprintf($message, $file, $line), E_USER_ERROR);
068 }
069
070 /**
071 * Redirects isset to the correct request class call.
072 *
073 * @param string $offset The key of the super global being accessed.
074 *
075 * @return bool Whether the key on the super global exists.
076 */
077 public function offsetExists($offset)
078 {
079 return $this->request->is_set($offset, $this->super_global);
080 }
081
082 /**#@+
083 * Part of the \ArrayAccess implementation, will always result in a FATAL error.
084 */
085 public function offsetGet($offset)
086 {
087 $this->error();
088 }
089
090 public function offsetSet($offset, $value)
091 {
092 $this->error();
093 }
094
095 public function offsetUnset($offset)
096 {
097 $this->error();
098 }
099 /**#@-*/
100
101 /**
102 * Part of the \Countable implementation, will always result in a FATAL error
103 */
104 public function count()
105 {
106 $this->error();
107 }
108
109 /**
110 * Part of the Traversable/IteratorAggregate implementation, will always result in a FATAL error
111 */
112 public function getIterator()
113 {
114 $this->error();
115 }
116 }
117