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116 lines
2.9 KiB
PHP
116 lines
2.9 KiB
PHP
<?php
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/**
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*
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* @package \phpbb\request\request
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* @copyright (c) 2010 phpBB Group
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* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
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*
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*/
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namespace phpbb\request;
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/**
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* Replacement for a superglobal (like $_GET or $_POST) which calls
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* trigger_error on all operations but isset, overloads the [] operator with SPL.
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*
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* @package \phpbb\request\request
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*/
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class deactivated_super_global implements \ArrayAccess, \Countable, \IteratorAggregate
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{
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/**
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* @var string Holds the name of the superglobal this is replacing.
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*/
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private $name;
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/**
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* @var \phpbb\request\request_interface::POST|GET|REQUEST|COOKIE Super global constant.
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*/
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private $super_global;
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/**
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* @var \phpbb\request\request_interface The request class instance holding the actual request data.
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*/
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private $request;
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/**
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* Constructor generates an error message fitting the super global to be used within the other functions.
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*
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* @param \phpbb\request\request_interface $request A request class instance holding the real super global data.
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* @param string $name Name of the super global this is a replacement for - e.g. '_GET'.
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* @param \phpbb\request\request_interface::POST|GET|REQUEST|COOKIE $super_global The variable's super global constant.
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*/
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public function __construct(\phpbb\request\request_interface $request, $name, $super_global)
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{
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$this->request = $request;
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$this->name = $name;
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$this->super_global = $super_global;
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}
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/**
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* Calls trigger_error with the file and line number the super global was used in.
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*/
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private function error()
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{
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$file = '';
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$line = 0;
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$message = 'Illegal use of $' . $this->name . '. You must use the request class or request_var() to access input data. Found in %s on line %d. This error message was generated by deactivated_super_global.';
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$backtrace = debug_backtrace();
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if (isset($backtrace[1]))
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{
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$file = $backtrace[1]['file'];
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$line = $backtrace[1]['line'];
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}
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trigger_error(sprintf($message, $file, $line), E_USER_ERROR);
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}
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/**
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* Redirects isset to the correct request class call.
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*
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* @param string $offset The key of the super global being accessed.
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*
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* @return bool Whether the key on the super global exists.
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*/
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public function offsetExists($offset)
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{
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return $this->request->is_set($offset, $this->super_global);
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}
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/**#@+
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* Part of the \ArrayAccess implementation, will always result in a FATAL error.
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*/
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public function offsetGet($offset)
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{
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$this->error();
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}
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public function offsetSet($offset, $value)
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{
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$this->error();
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}
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public function offsetUnset($offset)
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{
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$this->error();
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}
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/**#@-*/
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/**
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* Part of the \Countable implementation, will always result in a FATAL error
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*/
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public function count()
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{
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$this->error();
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}
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/**
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* Part of the Traversable/IteratorAggregate implementation, will always result in a FATAL error
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*/
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public function getIterator()
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{
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$this->error();
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}
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}
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