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1 | <?php |
2 | /** |
3 | * |
4 | * This file is part of the phpBB Forum Software package. |
5 | * |
6 | * @copyright (c) phpBB Limited <https://www.phpbb.com> |
7 | * @license GNU General Public License, version 2 (GPL-2.0) |
8 | * |
9 | * For full copyright and license information, please see |
10 | * the docs/CREDITS.txt file. |
11 | * |
12 | */ |
13 | |
14 | namespace phpbb\request; |
15 | |
16 | /** |
17 | * An interface through which all application input can be accessed. |
18 | */ |
19 | interface request_interface |
20 | { |
21 | /**#@+ |
22 | * Constant identifying the super global with the same name. |
23 | */ |
24 | const POST = 0; |
25 | const GET = 1; |
26 | const REQUEST = 2; |
27 | const COOKIE = 3; |
28 | const SERVER = 4; |
29 | const FILES = 5; |
30 | /**#@-*/ |
31 | |
32 | /** |
33 | * This function allows overwriting or setting a value in one of the super global arrays. |
34 | * |
35 | * Changes which are performed on the super globals directly will not have any effect on the results of |
36 | * other methods this class provides. Using this function should be avoided if possible! It will |
37 | * consume twice the the amount of memory of the value |
38 | * |
39 | * @param string $var_name The name of the variable that shall be overwritten |
40 | * @param mixed $value The value which the variable shall contain. |
41 | * If this is null the variable will be unset. |
42 | * @param int $super_global (\phpbb\request\request_interface::POST|GET|REQUEST|COOKIE) |
43 | * Specifies which super global shall be changed |
44 | */ |
45 | public function overwrite($var_name, $value, $super_global = request_interface::REQUEST); |
46 | |
47 | /** |
48 | * Central type safe input handling function. |
49 | * All variables in GET or POST requests should be retrieved through this function to maximise security. |
50 | * |
51 | * @param string|array $var_name The form variable's name from which data shall be retrieved. |
52 | * If the value is an array this may be an array of indizes which will give |
53 | * direct access to a value at any depth. E.g. if the value of "var" is array(1 => "a") |
54 | * then specifying array("var", 1) as the name will return "a". |
55 | * @param mixed $default A default value that is returned if the variable was not set. |
56 | * This function will always return a value of the same type as the default. |
57 | * @param bool $multibyte If $default is a string this parameter has to be true if the variable may contain any UTF-8 characters |
58 | * Default is false, causing all bytes outside the ASCII range (0-127) to be replaced with question marks |
59 | * @param int $super_global (\phpbb\request\request_interface::POST|GET|REQUEST|COOKIE) |
60 | * Specifies which super global shall be changed |
61 | * |
62 | * @return mixed The value of $_REQUEST[$var_name] run through {@link type_cast_helper_interface::set_var} to ensure that the type is the |
63 | * the same as that of $default. If the variable is not set $default is returned. |
64 | */ |
65 | public function variable($var_name, $default, $multibyte = false, $super_global = request_interface::REQUEST); |
66 | |
67 | /** |
68 | * Get a variable without trimming strings and without escaping. |
69 | * This method MUST NOT be used with queries. |
70 | * Same functionality as variable(), except does not run trim() on strings |
71 | * and does not escape input. |
72 | * This method should only be used when the raw input is needed without |
73 | * any escaping, i.e. for database password during the installation. |
74 | * |
75 | * @param string|array $var_name The form variable's name from which data shall be retrieved. |
76 | * If the value is an array this may be an array of indizes which will give |
77 | * direct access to a value at any depth. E.g. if the value of "var" is array(1 => "a") |
78 | * then specifying array("var", 1) as the name will return "a". |
79 | * @param mixed $default A default value that is returned if the variable was not set. |
80 | * This function will always return a value of the same type as the default. |
81 | * @param int $super_global (\phpbb\request\request_interface::POST|GET|REQUEST|COOKIE) |
82 | * Specifies which super global shall be changed |
83 | * |
84 | * @return mixed The value of $_REQUEST[$var_name] run through {@link type_cast_helper_interface::set_var} to ensure that the type is the |
85 | * the same as that of $default. If the variable is not set $default is returned. |
86 | */ |
87 | public function raw_variable($var_name, $default, $super_global = request_interface::REQUEST); |
88 | |
89 | /** |
90 | * Shortcut method to retrieve SERVER variables. |
91 | * |
92 | * @param string|array $var_name See \phpbb\request\request_interface::variable |
93 | * @param mixed $default See \phpbb\request\request_interface::variable |
94 | * |
95 | * @return mixed The server variable value. |
96 | */ |
97 | public function server($var_name, $default = ''); |
98 | |
99 | /** |
100 | * Shortcut method to retrieve the value of client HTTP headers. |
101 | * |
102 | * @param string|array $header_name The name of the header to retrieve. |
103 | * @param mixed $default See \phpbb\request\request_interface::variable |
104 | * |
105 | * @return mixed The header value. |
106 | */ |
107 | public function header($header_name, $default = ''); |
108 | |
109 | /** |
110 | * Checks whether a certain variable was sent via POST. |
111 | * To make sure that a request was sent using POST you should call this function |
112 | * on at least one variable. |
113 | * |
114 | * @param string $name The name of the form variable which should have a |
115 | * _p suffix to indicate the check in the code that creates the form too. |
116 | * |
117 | * @return bool True if the variable was set in a POST request, false otherwise. |
118 | */ |
119 | public function is_set_post($name); |
120 | |
121 | /** |
122 | * Checks whether a certain variable is set in one of the super global |
123 | * arrays. |
124 | * |
125 | * @param string $var Name of the variable |
126 | * @param int $super_global (\phpbb\request\request_interface::POST|GET|REQUEST|COOKIE) |
127 | * Specifies which super global shall be changed |
128 | * |
129 | * @return bool True if the variable was sent as input |
130 | */ |
131 | public function is_set($var, $super_global = request_interface::REQUEST); |
132 | |
133 | /** |
134 | * Checks whether the current request is an AJAX request (XMLHttpRequest) |
135 | * |
136 | * @return bool True if the current request is an ajax request |
137 | */ |
138 | public function is_ajax(); |
139 | |
140 | /** |
141 | * Checks if the current request is happening over HTTPS. |
142 | * |
143 | * @return bool True if the request is secure. |
144 | */ |
145 | public function is_secure(); |
146 | |
147 | /** |
148 | * Returns all variable names for a given super global |
149 | * |
150 | * @param int $super_global (\phpbb\request\request_interface::POST|GET|REQUEST|COOKIE) |
151 | * The super global from which names shall be taken |
152 | * |
153 | * @return array All variable names that are set for the super global. |
154 | * Pay attention when using these, they are unsanitised! |
155 | */ |
156 | public function variable_names($super_global = request_interface::REQUEST); |
157 | |
158 | /** |
159 | * Returns the original array of the requested super global |
160 | * |
161 | * @param int $super_global (\phpbb\request\request_interface::POST|GET|REQUEST|COOKIE) |
162 | * The super global which will be returned |
163 | * |
164 | * @return array The original array of the requested super global. |
165 | */ |
166 | public function get_super_global($super_global = request_interface::REQUEST); |
167 | |
168 | /** |
169 | * Escape a string variable. |
170 | * |
171 | * @param mixed $value The contents to fill with |
172 | * @param bool $multibyte Indicates whether string values may contain UTF-8 characters. |
173 | * Default is false, causing all bytes outside the ASCII range (0-127) to be replaced with question marks. |
174 | * @return string|array |
175 | */ |
176 | public function escape($value, $multibyte); |
177 | } |