includes/WebResponse.php

   1 <?php
   2 /**
   3  * Classes used to send headers and cookies back to the user
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  */
  22
  23 /**
  24  * Allow programs to request this object from WebRequest::response()
  25  * and handle all outputting (or lack of outputting) via it.
  26  * @ingroup HTTP
  27  */
  28 class WebResponse {
  29
  30         /**
  31          * Output a HTTP header, wrapper for PHP's
  32          * header()
  33          * @param string $string header to output
  34          * @param bool $replace replace current similar header
  35          * @param $http_response_code null|int Forces the HTTP response code to the specified value.
  36          */
  37         public function header( $string, $replace = true, $http_response_code = null ) {
  38                 header( $string, $replace, $http_response_code );
  39         }
  40
  41         /**
  42          * Set the browser cookie
  43          * @param string $name name of cookie
  44          * @param string $value value to give cookie
  45          * @param int $expire Unix timestamp (in seconds) when the cookie should expire.
  46          *        0 (the default) causes it to expire $wgCookieExpiration seconds from now.
  47          * @param string $prefix Prefix to use, if not $wgCookiePrefix (use '' for no prefix)
  48          * @param string $domain Cookie domain to use, if not $wgCookieDomain
  49          * @param $forceSecure Bool:
  50          *   true: force the cookie to be set with the secure attribute
  51          *   false: force the cookie to be set without the secure attribute
  52          *   null: use the value from $wgCookieSecure
  53          */
  54         public function setcookie( $name, $value, $expire = 0, $prefix = null, $domain = null, $forceSecure = null ) {
  55                 global $wgCookiePath, $wgCookiePrefix, $wgCookieDomain;
  56                 global $wgCookieSecure, $wgCookieExpiration, $wgCookieHttpOnly;
  57                 if ( $expire == 0 ) {
  58                         $expire = time() + $wgCookieExpiration;
  59                 }
  60                 if ( $prefix === null ) {
  61                         $prefix = $wgCookiePrefix;
  62                 }
  63                 if ( $domain === null ) {
  64                         $domain = $wgCookieDomain;
  65                 }
  66
  67                 if ( is_null( $forceSecure ) ) {
  68                         $secureCookie = $wgCookieSecure;
  69                 } else {
  70                         $secureCookie = $forceSecure;
  71                 }
  72
  73                 // Mark the cookie as httpOnly if $wgCookieHttpOnly is true,
  74                 // unless the requesting user-agent is known to have trouble with
  75                 // httpOnly cookies.
  76                 $httpOnlySafe = $wgCookieHttpOnly && wfHttpOnlySafe();
  77
  78                 wfDebugLog( 'cookie',
  79                         'setcookie: "' . implode( '", "',
  80                                 array(
  81                                         $prefix . $name,
  82                                         $value,
  83                                         $expire,
  84                                         $wgCookiePath,
  85                                         $domain,
  86                                         $secureCookie,
  87                                         $httpOnlySafe ) ) . '"' );
  88                 setcookie( $prefix . $name,
  89                         $value,
  90                         $expire,
  91                         $wgCookiePath,
  92                         $domain,
  93                         $secureCookie,
  94                         $httpOnlySafe );
  95         }
  96 }
  97
  98 /**
  99  * @ingroup HTTP
 100  */
 101 class FauxResponse extends WebResponse {
 102         private $headers;
 103         private $cookies;
 104         private $code;
 105
 106         /**
 107          * Stores a HTTP header
 108          * @param string $string header to output
 109          * @param bool $replace replace current similar header
 110          * @param $http_response_code null|int Forces the HTTP response code to the specified value.
 111          */
 112         public function header( $string, $replace = true, $http_response_code = null ) {
 113                 if ( substr( $string, 0, 5 ) == 'HTTP/' ) {
 114                         $parts = explode( ' ', $string, 3 );
 115                         $this->code = intval( $parts[1] );
 116                 } else {
 117                         list( $key, $val ) = array_map( 'trim', explode( ":", $string, 2 ) );
 118
 119                         $key = strtoupper( $key );
 120
 121                         if ( $replace || !isset( $this->headers[$key] ) ) {
 122                                 $this->headers[$key] = $val;
 123                         }
 124                 }
 125
 126                 if ( $http_response_code !== null ) {
 127                         $this->code = intval( $http_response_code );
 128                 }
 129         }
 130
 131         /**
 132          * @param string $key The name of the header to get (case insensitive).
 133          * @return string
 134          */
 135         public function getheader( $key ) {
 136                 $key = strtoupper( $key );
 137
 138                 if ( isset( $this->headers[$key] ) ) {
 139                         return $this->headers[$key];
 140                 }
 141                 return null;
 142         }
 143
 144         /**
 145          * Get the HTTP response code, null if not set
 146          *
 147          * @return Int or null
 148          */
 149         public function getStatusCode() {
 150                 return $this->code;
 151         }
 152
 153         /**
 154          * @todo document. It just ignore optional parameters.
 155          *
 156          * @param string $name name of cookie
 157          * @param string $value value to give cookie
 158          * @param int $expire number of seconds til cookie expires (Default: 0)
 159          * @param $prefix TODO DOCUMENT (Default: null)
 160          * @param $domain TODO DOCUMENT (Default: null)
 161          * @param $forceSecure TODO DOCUMENT (Default: null)
 162          */
 163         public function setcookie( $name, $value, $expire = 0, $prefix = null, $domain = null, $forceSecure = null ) {
 164                 $this->cookies[$name] = $value;
 165         }
 166
 167         /**
 168          * @param $name string
 169          * @return string
 170          */
 171         public function getcookie( $name ) {
 172                 if ( isset( $this->cookies[$name] ) ) {
 173                         return $this->cookies[$name];
 174                 }
 175                 return null;
 176         }
 177 }