includes/WebRequest.php

   1 <?php
   2 /**
   3  * Deal with importing all those nasssty globals and things
   4  */
   5
   6 # Copyright (C) 2003 Brion Vibber <brion@pobox.com>
   7 # http://www.mediawiki.org/
   8 #
   9 # This program is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation; either version 2 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # This program is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17 # GNU General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License along
  20 # with this program; if not, write to the Free Software Foundation, Inc.,
  21 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  22 # http://www.gnu.org/copyleft/gpl.html
  23
  24
  25 /**
  26  * Some entry points may use this file without first enabling the
  27  * autoloader.
  28  */
  29 if ( !function_exists( '__autoload' ) ) {
  30         require_once( dirname(__FILE__) . '/normal/UtfNormal.php' );
  31 }
  32
  33 /**
  34  * The WebRequest class encapsulates getting at data passed in the
  35  * URL or via a POSTed form, handling remove of "magic quotes" slashes,
  36  * stripping illegal input characters and normalizing Unicode sequences.
  37  *
  38  * Usually this is used via a global singleton, $wgRequest. You should
  39  * not create a second WebRequest object; make a FauxRequest object if
  40  * you want to pass arbitrary data to some function in place of the web
  41  * input.
  42  *
  43  * @ingroup HTTP
  44  */
  45 class WebRequest {
  46         var $data = array();
  47         var $headers;
  48         private $_response;
  49
  50         function __construct() {
  51                 /// @fixme This preemptive de-quoting can interfere with other web libraries
  52                 ///        and increases our memory footprint. It would be cleaner to do on
  53                 ///        demand; but currently we have no wrapper for $_SERVER etc.
  54                 $this->checkMagicQuotes();
  55
  56                 // POST overrides GET data
  57                 // We don't use $_REQUEST here to avoid interference from cookies...
  58                 $this->data = $_POST + $_GET;
  59         }
  60
  61         /**
  62          * Check for title, action, and/or variant data in the URL
  63          * and interpolate it into the GET variables.
  64          * This should only be run after $wgContLang is available,
  65          * as we may need the list of language variants to determine
  66          * available variant URLs.
  67          */
  68         function interpolateTitle() {
  69                 global $wgUsePathInfo;
  70                 if ( $wgUsePathInfo ) {
  71                         // PATH_INFO is mangled due to http://bugs.php.net/bug.php?id=31892
  72                         // And also by Apache 2.x, double slashes are converted to single slashes.
  73                         // So we will use REQUEST_URI if possible.
  74                         $matches = array();
  75                         if ( !empty( $_SERVER['REQUEST_URI'] ) ) {
  76                                 // Slurp out the path portion to examine...
  77                                 $url = $_SERVER['REQUEST_URI'];
  78                                 if ( !preg_match( '!^https?://!', $url ) ) {
  79                                         $url = 'http://unused' . $url;
  80                                 }
  81                                 $a = parse_url( $url );
  82                                 if( $a ) {
  83                                         $path = isset( $a['path'] ) ? $a['path'] : '';
  84
  85                                         global $wgScript;
  86                                         if( $path == $wgScript ) {
  87                                                 // Script inside a rewrite path?
  88                                                 // Abort to keep from breaking...
  89                                                 return;
  90                                         }
  91                                         // Raw PATH_INFO style
  92                                         $matches = $this->extractTitle( $path, "$wgScript/$1" );
  93
  94                                         global $wgArticlePath;
  95                                         if( !$matches && $wgArticlePath ) {
  96                                                 $matches = $this->extractTitle( $path, $wgArticlePath );
  97                                         }
  98
  99                                         global $wgActionPaths;
 100                                         if( !$matches && $wgActionPaths ) {
 101                                                 $matches = $this->extractTitle( $path, $wgActionPaths, 'action' );
 102                                         }
 103
 104                                         global $wgVariantArticlePath, $wgContLang;
 105                                         if( !$matches && $wgVariantArticlePath ) {
 106                                                 $variantPaths = array();
 107                                                 foreach( $wgContLang->getVariants() as $variant ) {
 108                                                         $variantPaths[$variant] =
 109                                                                 str_replace( '$2', $variant, $wgVariantArticlePath );
 110                                                 }
 111                                                 $matches = $this->extractTitle( $path, $variantPaths, 'variant' );
 112                                         }
 113                                 }
 114                         } elseif ( isset( $_SERVER['ORIG_PATH_INFO'] ) && $_SERVER['ORIG_PATH_INFO'] != '' ) {
 115                                 // Mangled PATH_INFO
 116                                 // http://bugs.php.net/bug.php?id=31892
 117                                 // Also reported when ini_get('cgi.fix_pathinfo')==false
 118                                 $matches['title'] = substr( $_SERVER['ORIG_PATH_INFO'], 1 );
 119
 120                         } elseif ( isset( $_SERVER['PATH_INFO'] ) && ($_SERVER['PATH_INFO'] != '') ) {
 121                                 // Regular old PATH_INFO yay
 122                                 $matches['title'] = substr( $_SERVER['PATH_INFO'], 1 );
 123                         }
 124                         foreach( $matches as $key => $val) {
 125                                 $this->data[$key] = $_GET[$key] = $_REQUEST[$key] = $val;
 126                         }
 127                 }
 128         }
 129
 130         /**
 131          * Internal URL rewriting function; tries to extract page title and,
 132          * optionally, one other fixed parameter value from a URL path.
 133          *
 134          * @param $path string: the URL path given from the client
 135          * @param $bases array: one or more URLs, optionally with $1 at the end
 136          * @param $key string: if provided, the matching key in $bases will be
 137          *             passed on as the value of this URL parameter
 138          * @return array of URL variables to interpolate; empty if no match
 139          */
 140         private function extractTitle( $path, $bases, $key=false ) {
 141                 foreach( (array)$bases as $keyValue => $base ) {
 142                         // Find the part after $wgArticlePath
 143                         $base = str_replace( '$1', '', $base );
 144                         $baseLen = strlen( $base );
 145                         if( substr( $path, 0, $baseLen ) == $base ) {
 146                                 $raw = substr( $path, $baseLen );
 147                                 if( $raw !== '' ) {
 148                                         $matches = array( 'title' => rawurldecode( $raw ) );
 149                                         if( $key ) {
 150                                                 $matches[$key] = $keyValue;
 151                                         }
 152                                         return $matches;
 153                                 }
 154                         }
 155                 }
 156                 return array();
 157         }
 158
 159         /**
 160          * Recursively strips slashes from the given array;
 161          * used for undoing the evil that is magic_quotes_gpc.
 162          * @param $arr array: will be modified
 163          * @return array the original array
 164          * @private
 165          */
 166         function &fix_magic_quotes( &$arr ) {
 167                 foreach( $arr as $key => $val ) {
 168                         if( is_array( $val ) ) {
 169                                 $this->fix_magic_quotes( $arr[$key] );
 170                         } else {
 171                                 $arr[$key] = stripslashes( $val );
 172                         }
 173                 }
 174                 return $arr;
 175         }
 176
 177         /**
 178          * If magic_quotes_gpc option is on, run the global arrays
 179          * through fix_magic_quotes to strip out the stupid slashes.
 180          * WARNING: This should only be done once! Running a second
 181          * time could damage the values.
 182          * @private
 183          */
 184         function checkMagicQuotes() {
 185                 if ( function_exists( 'get_magic_quotes_gpc' ) && get_magic_quotes_gpc() ) {
 186                         $this->fix_magic_quotes( $_COOKIE );
 187                         $this->fix_magic_quotes( $_ENV );
 188                         $this->fix_magic_quotes( $_GET );
 189                         $this->fix_magic_quotes( $_POST );
 190                         $this->fix_magic_quotes( $_REQUEST );
 191                         $this->fix_magic_quotes( $_SERVER );
 192                 }
 193         }
 194
 195         /**
 196          * Recursively normalizes UTF-8 strings in the given array.
 197          * @param $data string or array
 198          * @return cleaned-up version of the given
 199          * @private
 200          */
 201         function normalizeUnicode( $data ) {
 202                 if( is_array( $data ) ) {
 203                         foreach( $data as $key => $val ) {
 204                                 $data[$key] = $this->normalizeUnicode( $val );
 205                         }
 206                 } else {
 207                         $data = UtfNormal::cleanUp( $data );
 208                 }
 209                 return $data;
 210         }
 211
 212         /**
 213          * Fetch a value from the given array or return $default if it's not set.
 214          *
 215          * @param $arr array
 216          * @param $name string
 217          * @param $default mixed
 218          * @return mixed
 219          * @private
 220          */
 221         function getGPCVal( $arr, $name, $default ) {
 222                 if( isset( $arr[$name] ) ) {
 223                         global $wgContLang;
 224                         $data = $arr[$name];
 225                         if( isset( $_GET[$name] ) && !is_array( $data ) ) {
 226                                 # Check for alternate/legacy character encoding.
 227                                 if( isset( $wgContLang ) ) {
 228                                         $data = $wgContLang->checkTitleEncoding( $data );
 229                                 }
 230                         }
 231                         $data = $this->normalizeUnicode( $data );
 232                         return $data;
 233                 } else {
 234                         taint( $default );
 235                         return $default;
 236                 }
 237         }
 238
 239         /**
 240          * Fetch a scalar from the input or return $default if it's not set.
 241          * Returns a string. Arrays are discarded. Useful for
 242          * non-freeform text inputs (e.g. predefined internal text keys
 243          * selected by a drop-down menu). For freeform input, see getText().
 244          *
 245          * @param $name string
 246          * @param $default string: optional default (or NULL)
 247          * @return string
 248          */
 249         function getVal( $name, $default = NULL ) {
 250                 $val = $this->getGPCVal( $this->data, $name, $default );
 251                 if( is_array( $val ) ) {
 252                         $val = $default;
 253                 }
 254                 if( is_null( $val ) ) {
 255                         return $val;
 256                 } else {
 257                         return (string)$val;
 258                 }
 259         }
 260
 261         /**
 262          * Set an aribtrary value into our get/post data.
 263          * @param $key string Key name to use
 264          * @param $value mixed Value to set
 265          * @return mixed old value if one was present, null otherwise
 266          */
 267         function setVal( $key, $value ) {
 268                 $ret = isset( $this->data[$key] ) ? $this->data[$key] : null;
 269                 $this->data[$key] = $value;
 270                 return $ret;
 271         }
 272
 273         /**
 274          * Fetch an array from the input or return $default if it's not set.
 275          * If source was scalar, will return an array with a single element.
 276          * If no source and no default, returns NULL.
 277          *
 278          * @param $name string
 279          * @param $default array: optional default (or NULL)
 280          * @return array
 281          */
 282         function getArray( $name, $default = NULL ) {
 283                 $val = $this->getGPCVal( $this->data, $name, $default );
 284                 if( is_null( $val ) ) {
 285                         return null;
 286                 } else {
 287                         return (array)$val;
 288                 }
 289         }
 290
 291         /**
 292          * Fetch an array of integers, or return $default if it's not set.
 293          * If source was scalar, will return an array with a single element.
 294          * If no source and no default, returns NULL.
 295          * If an array is returned, contents are guaranteed to be integers.
 296          *
 297          * @param $name string
 298          * @param $default array: option default (or NULL)
 299          * @return array of ints
 300          */
 301         function getIntArray( $name, $default = NULL ) {
 302                 $val = $this->getArray( $name, $default );
 303                 if( is_array( $val ) ) {
 304                         $val = array_map( 'intval', $val );
 305                 }
 306                 return $val;
 307         }
 308
 309         /**
 310          * Fetch an integer value from the input or return $default if not set.
 311          * Guaranteed to return an integer; non-numeric input will typically
 312          * return 0.
 313          * @param $name string
 314          * @param $default int
 315          * @return int
 316          */
 317         function getInt( $name, $default = 0 ) {
 318                 return intval( $this->getVal( $name, $default ) );
 319         }
 320
 321         /**
 322          * Fetch an integer value from the input or return null if empty.
 323          * Guaranteed to return an integer or null; non-numeric input will
 324          * typically return null.
 325          * @param $name string
 326          * @return int
 327          */
 328         function getIntOrNull( $name ) {
 329                 $val = $this->getVal( $name );
 330                 return is_numeric( $val )
 331                         ? intval( $val )
 332                         : null;
 333         }
 334
 335         /**
 336          * Fetch a boolean value from the input or return $default if not set.
 337          * Guaranteed to return true or false, with normal PHP semantics for
 338          * boolean interpretation of strings.
 339          * @param $name string
 340          * @param $default bool
 341          * @return bool
 342          */
 343         function getBool( $name, $default = false ) {
 344                 return $this->getVal( $name, $default ) ? true : false;
 345         }
 346
 347         /**
 348          * Return true if the named value is set in the input, whatever that
 349          * value is (even "0"). Return false if the named value is not set.
 350          * Example use is checking for the presence of check boxes in forms.
 351          * @param $name string
 352          * @return bool
 353          */
 354         function getCheck( $name ) {
 355                 # Checkboxes and buttons are only present when clicked
 356                 # Presence connotes truth, abscense false
 357                 $val = $this->getVal( $name, NULL );
 358                 return isset( $val );
 359         }
 360
 361         /**
 362          * Fetch a text string from the given array or return $default if it's not
 363          * set. \r is stripped from the text, and with some language modules there
 364          * is an input transliteration applied. This should generally be used for
 365          * form <textarea> and <input> fields. Used for user-supplied freeform text
 366          * input (for which input transformations may be required - e.g. Esperanto
 367          * x-coding).
 368          *
 369          * @param $name string
 370          * @param $default string: optional
 371          * @return string
 372          */
 373         function getText( $name, $default = '' ) {
 374                 global $wgContLang;
 375                 $val = $this->getVal( $name, $default );
 376                 return str_replace( "\r\n", "\n",
 377                         $wgContLang->recodeInput( $val ) );
 378         }
 379
 380         /**
 381          * Extracts the given named values into an array.
 382          * If no arguments are given, returns all input values.
 383          * No transformation is performed on the values.
 384          */
 385         function getValues() {
 386                 $names = func_get_args();
 387                 if ( count( $names ) == 0 ) {
 388                         $names = array_keys( $this->data );
 389                 }
 390
 391                 $retVal = array();
 392                 foreach ( $names as $name ) {
 393                         $value = $this->getVal( $name );
 394                         if ( !is_null( $value ) ) {
 395                                 $retVal[$name] = $value;
 396                         }
 397                 }
 398                 return $retVal;
 399         }
 400
 401         /**
 402          * Returns true if the present request was reached by a POST operation,
 403          * false otherwise (GET, HEAD, or command-line).
 404          *
 405          * Note that values retrieved by the object may come from the
 406          * GET URL etc even on a POST request.
 407          *
 408          * @return bool
 409          */
 410         function wasPosted() {
 411                 return $_SERVER['REQUEST_METHOD'] == 'POST';
 412         }
 413
 414         /**
 415          * Returns true if there is a session cookie set.
 416          * This does not necessarily mean that the user is logged in!
 417          *
 418          * If you want to check for an open session, use session_id()
 419          * instead; that will also tell you if the session was opened
 420          * during the current request (in which case the cookie will
 421          * be sent back to the client at the end of the script run).
 422          *
 423          * @return bool
 424          */
 425         function checkSessionCookie() {
 426                 return isset( $_COOKIE[session_name()] );
 427         }
 428
 429         /**
 430          * Return the path portion of the request URI.
 431          * @return string
 432          */
 433         function getRequestURL() {
 434                 if( isset( $_SERVER['REQUEST_URI'] ) ) {
 435                         $base = $_SERVER['REQUEST_URI'];
 436                 } elseif( isset( $_SERVER['SCRIPT_NAME'] ) ) {
 437                         // Probably IIS; doesn't set REQUEST_URI
 438                         $base = $_SERVER['SCRIPT_NAME'];
 439                         if( isset( $_SERVER['QUERY_STRING'] ) && $_SERVER['QUERY_STRING'] != '' ) {
 440                                 $base .= '?' . $_SERVER['QUERY_STRING'];
 441                         }
 442                 } else {
 443                         // This shouldn't happen!
 444                         throw new MWException( "Web server doesn't provide either " .
 445                                 "REQUEST_URI or SCRIPT_NAME. Report details of your " .
 446                                 "web server configuration to http://bugzilla.wikimedia.org/" );
 447                 }
 448                 // User-agents should not send a fragment with the URI, but
 449                 // if they do, and the web server passes it on to us, we
 450                 // need to strip it or we get false-positive redirect loops
 451                 // or weird output URLs
 452                 $hash = strpos( $base, '#' );
 453                 if( $hash !== false ) {
 454                         $base = substr( $base, 0, $hash );
 455                 }
 456                 if( $base{0} == '/' ) {
 457                         return $base;
 458                 } else {
 459                         // We may get paths with a host prepended; strip it.
 460                         return preg_replace( '!^[^:]+://[^/]+/!', '/', $base );
 461                 }
 462         }
 463
 464         /**
 465          * Return the request URI with the canonical service and hostname.
 466          * @return string
 467          */
 468         function getFullRequestURL() {
 469                 global $wgServer;
 470                 return $wgServer . $this->getRequestURL();
 471         }
 472
 473         /**
 474          * Take an arbitrary query and rewrite the present URL to include it
 475          * @param $query String: query string fragment; do not include initial '?'
 476          * @return string
 477          */
 478         function appendQuery( $query ) {
 479                 global $wgTitle;
 480                 $basequery = '';
 481                 foreach( $_GET as $var => $val ) {
 482                         if ( $var == 'title' )
 483                                 continue;
 484                         if ( is_array( $val ) )
 485                                 /* This will happen given a request like
 486                                  * http://en.wikipedia.org/w/index.php?title[]=Special:Userlogin&returnto[]=Main_Page
 487                                  */
 488                                 continue;
 489                         $basequery .= '&' . urlencode( $var ) . '=' . urlencode( $val );
 490                 }
 491                 $basequery .= '&' . $query;
 492
 493                 # Trim the extra &
 494                 $basequery = substr( $basequery, 1 );
 495                 return $wgTitle->getLocalURL( $basequery );
 496         }
 497
 498         /**
 499          * HTML-safe version of appendQuery().
 500          * @param $query String: query string fragment; do not include initial '?'
 501          * @return string
 502          */
 503         function escapeAppendQuery( $query ) {
 504                 return htmlspecialchars( $this->appendQuery( $query ) );
 505         }
 506
 507         function appendQueryValue( $key, $value, $onlyquery = false ) {
 508                 return $this->appendQueryArray( array( $key => $value ), $onlyquery );
 509         }
 510
 511         /**
 512          * Appends or replaces value of query variables.
 513          * @param $array Array of values to replace/add to query
 514          * @param $onlyquery Bool: whether to only return the query string and not
 515          *                   the complete URL
 516          * @return string
 517          */
 518         function appendQueryArray( $array, $onlyquery = false ) {
 519                 global $wgTitle;
 520                 $newquery = $_GET;
 521                 unset( $newquery['title'] );
 522                 $newquery = array_merge( $newquery, $array );
 523                 $query = wfArrayToCGI( $newquery );
 524                 return $onlyquery ? $query : $wgTitle->getLocalURL( $query );
 525         }
 526
 527         /**
 528          * Check for limit and offset parameters on the input, and return sensible
 529          * defaults if not given. The limit must be positive and is capped at 5000.
 530          * Offset must be positive but is not capped.
 531          *
 532          * @param $deflimit Integer: limit to use if no input and the user hasn't set the option.
 533          * @param $optionname String: to specify an option other than rclimit to pull from.
 534          * @return array first element is limit, second is offset
 535          */
 536         function getLimitOffset( $deflimit = 50, $optionname = 'rclimit' ) {
 537                 global $wgUser;
 538
 539                 $limit = $this->getInt( 'limit', 0 );
 540                 if( $limit < 0 ) $limit = 0;
 541                 if( ( $limit == 0 ) && ( $optionname != '' ) ) {
 542                         $limit = (int)$wgUser->getOption( $optionname );
 543                 }
 544                 if( $limit <= 0 ) $limit = $deflimit;
 545                 if( $limit > 5000 ) $limit = 5000; # We have *some* limits...
 546
 547                 $offset = $this->getInt( 'offset', 0 );
 548                 if( $offset < 0 ) $offset = 0;
 549
 550                 return array( $limit, $offset );
 551         }
 552
 553         /**
 554          * Return the path to the temporary file where PHP has stored the upload.
 555          * @param $key String:
 556          * @return string or NULL if no such file.
 557          */
 558         function getFileTempname( $key ) {
 559                 if( !isset( $_FILES[$key] ) ) {
 560                         return NULL;
 561                 }
 562                 return $_FILES[$key]['tmp_name'];
 563         }
 564
 565         /**
 566          * Return the size of the upload, or 0.
 567          * @param $key String:
 568          * @return integer
 569          */
 570         function getFileSize( $key ) {
 571                 if( !isset( $_FILES[$key] ) ) {
 572                         return 0;
 573                 }
 574                 return $_FILES[$key]['size'];
 575         }
 576
 577         /**
 578          * Return the upload error or 0
 579          * @param $key String:
 580          * @return integer
 581          */
 582         function getUploadError( $key ) {
 583                 if( !isset( $_FILES[$key] ) || !isset( $_FILES[$key]['error'] ) ) {
 584                         return 0/*UPLOAD_ERR_OK*/;
 585                 }
 586                 return $_FILES[$key]['error'];
 587         }
 588
 589         /**
 590          * Return the original filename of the uploaded file, as reported by
 591          * the submitting user agent. HTML-style character entities are
 592          * interpreted and normalized to Unicode normalization form C, in part
 593          * to deal with weird input from Safari with non-ASCII filenames.
 594          *
 595          * Other than this the name is not verified for being a safe filename.
 596          *
 597          * @param $key String:
 598          * @return string or NULL if no such file.
 599          */
 600         function getFileName( $key ) {
 601                 if( !isset( $_FILES[$key] ) ) {
 602                         return NULL;
 603                 }
 604                 $name = $_FILES[$key]['name'];
 605
 606                 # Safari sends filenames in HTML-encoded Unicode form D...
 607                 # Horrid and evil! Let's try to make some kind of sense of it.
 608                 $name = Sanitizer::decodeCharReferences( $name );
 609                 $name = UtfNormal::cleanUp( $name );
 610                 wfDebug( "WebRequest::getFileName() '" . $_FILES[$key]['name'] . "' normalized to '$name'\n" );
 611                 return $name;
 612         }
 613
 614         /**
 615          * Return a handle to WebResponse style object, for setting cookies,
 616          * headers and other stuff, for Request being worked on.
 617          */
 618         function response() {
 619                 /* Lazy initialization of response object for this request */
 620                 if (!is_object($this->_response)) {
 621                         $this->_response = new WebResponse;
 622                 }
 623                 return $this->_response;
 624         }
 625
 626         /**
 627          * Get a request header, or false if it isn't set
 628          * @param $name String: case-insensitive header name
 629          */
 630         function getHeader( $name ) {
 631                 $name = strtoupper( $name );
 632                 if ( function_exists( 'apache_request_headers' ) ) {
 633                         if ( !isset( $this->headers ) ) {
 634                                 $this->headers = array();
 635                                 foreach ( apache_request_headers() as $tempName => $tempValue ) {
 636                                         $this->headers[ strtoupper( $tempName ) ] = $tempValue;
 637                                 }
 638                         }
 639                         if ( isset( $this->headers[$name] ) ) {
 640                                 return $this->headers[$name];
 641                         } else {
 642                                 return false;
 643                         }
 644                 } else {
 645                         $name = 'HTTP_' . str_replace( '-', '_', $name );
 646                         if ( isset( $_SERVER[$name] ) ) {
 647                                 return $_SERVER[$name];
 648                         } else {
 649                                 return false;
 650                         }
 651                 }
 652         }
 653
 654         /*
 655          * Get data from $_SESSION
 656          */
 657         function getSessionData( $key ) {
 658                 if( !isset( $_SESSION[$key] ) )
 659                         return null;
 660                 return $_SESSION[$key];
 661         }
 662         function setSessionData( $key, $data ) {
 663                 $_SESSION[$key] = $data;
 664         }
 665 }
 666
 667 /**
 668  * WebRequest clone which takes values from a provided array.
 669  *
 670  * @ingroup HTTP
 671  */
 672 class FauxRequest extends WebRequest {
 673         var $wasPosted = false;
 674
 675         /**
 676          * @param $data Array of *non*-urlencoded key => value pairs, the
 677          *   fake GET/POST values
 678          * @param $wasPosted Bool: whether to treat the data as POST
 679          */
 680         function FauxRequest( $data, $wasPosted = false, $session = null ) {
 681                 if( is_array( $data ) ) {
 682                         $this->data = $data;
 683                 } else {
 684                         throw new MWException( "FauxRequest() got bogus data" );
 685                 }
 686                 $this->wasPosted = $wasPosted;
 687                 $this->headers = array();
 688                 $this->session = $session ? $session : array();
 689         }
 690
 691         function notImplemented( $method ) {
 692                 throw new MWException( "{$method}() not implemented" );
 693         }
 694
 695         function getText( $name, $default = '' ) {
 696                 # Override; don't recode since we're using internal data
 697                 return (string)$this->getVal( $name, $default );
 698         }
 699
 700         function getValues() {
 701                 return $this->data;
 702         }
 703
 704         function wasPosted() {
 705                 return $this->wasPosted;
 706         }
 707
 708         function checkSessionCookie() {
 709                 return false;
 710         }
 711
 712         function getRequestURL() {
 713                 $this->notImplemented( __METHOD__ );
 714         }
 715
 716         function appendQuery( $query ) {
 717                 $this->notImplemented( __METHOD__ );
 718         }
 719
 720         function getHeader( $name ) {
 721                 return isset( $this->headers[$name] ) ? $this->headers[$name] : false;
 722         }
 723
 724         function getSessionData( $key ) {
 725                 if( !isset( $this->session[$key] ) )
 726                         return null;
 727                 return $this->session[$key];
 728         }
 729         function setSessionData( $key, $data ) {
 730                 $this->notImplemented( __METHOD__ );
 731         }
 732
 733 }