includes/api/ApiQueryInfo.php

   1 <?php
   2
   3 /*
   4  * Created on Sep 25, 2006
   5  *
   6  * API for MediaWiki 1.8+
   7  *
   8  * Copyright (C) 2006 Yuri Astrakhan <Firstname><Lastname>@gmail.com
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License along
  21  * with this program; if not, write to the Free Software Foundation, Inc.,
  22  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  23  * http://www.gnu.org/copyleft/gpl.html
  24  */
  25
  26 if (!defined('MEDIAWIKI')) {
  27         // Eclipse helper - will be ignored in production
  28         require_once ('ApiQueryBase.php');
  29 }
  30
  31 /**
  32  * A query module to show basic page information.
  33  *
  34  * @ingroup API
  35  */
  36 class ApiQueryInfo extends ApiQueryBase {
  37
  38         public function __construct($query, $moduleName) {
  39                 parent :: __construct($query, $moduleName, 'in');
  40         }
  41
  42         public function requestExtraData($pageSet) {
  43                 $pageSet->requestField('page_restrictions');
  44                 $pageSet->requestField('page_is_redirect');
  45                 $pageSet->requestField('page_is_new');
  46                 $pageSet->requestField('page_counter');
  47                 $pageSet->requestField('page_touched');
  48                 $pageSet->requestField('page_latest');
  49                 $pageSet->requestField('page_len');
  50         }
  51
  52         protected function getTokenFunctions() {
  53                 // tokenname => function
  54                 // function prototype is func($pageid, $title)
  55                 // should return token or false
  56
  57                 // Don't call the hooks twice
  58                 if(isset($this->tokenFunctions))
  59                         return $this->tokenFunctions;
  60
  61                 // If we're in JSON callback mode, no tokens can be obtained
  62                 if(!is_null($this->getMain()->getRequest()->getVal('callback')))
  63                         return array();
  64
  65                 $this->tokenFunctions = array(
  66                         'edit' => array( 'ApiQueryInfo', 'getEditToken' ),
  67                         'delete' => array( 'ApiQueryInfo', 'getDeleteToken' ),
  68                         'protect' => array( 'ApiQueryInfo', 'getProtectToken' ),
  69                         'move' => array( 'ApiQueryInfo', 'getMoveToken' ),
  70                         'block' => array( 'ApiQueryInfo', 'getBlockToken' ),
  71                         'unblock' => array( 'ApiQueryInfo', 'getUnblockToken' ),
  72                         'email' => array( 'ApiQueryInfo', 'getEmailToken' ),
  73                         'import' => array( 'ApiQueryInfo', 'getImportToken' ),
  74                 );
  75                 wfRunHooks('APIQueryInfoTokens', array(&$this->tokenFunctions));
  76                 return $this->tokenFunctions;
  77         }
  78
  79         public static function getEditToken($pageid, $title)
  80         {
  81                 // We could check for $title->userCan('edit') here,
  82                 // but that's too expensive for this purpose
  83                 global $wgUser;
  84                 if(!$wgUser->isAllowed('edit'))
  85                         return false;
  86
  87                 // The edit token is always the same, let's exploit that
  88                 static $cachedEditToken = null;
  89                 if(!is_null($cachedEditToken))
  90                         return $cachedEditToken;
  91
  92                 $cachedEditToken = $wgUser->editToken();
  93                 return $cachedEditToken;
  94         }
  95
  96         public static function getDeleteToken($pageid, $title)
  97         {
  98                 global $wgUser;
  99                 if(!$wgUser->isAllowed('delete'))
 100                         return false;
 101
 102                 static $cachedDeleteToken = null;
 103                 if(!is_null($cachedDeleteToken))
 104                         return $cachedDeleteToken;
 105
 106                 $cachedDeleteToken = $wgUser->editToken();
 107                 return $cachedDeleteToken;
 108         }
 109
 110         public static function getProtectToken($pageid, $title)
 111         {
 112                 global $wgUser;
 113                 if(!$wgUser->isAllowed('protect'))
 114                         return false;
 115
 116                 static $cachedProtectToken = null;
 117                 if(!is_null($cachedProtectToken))
 118                         return $cachedProtectToken;
 119
 120                 $cachedProtectToken = $wgUser->editToken();
 121                 return $cachedProtectToken;
 122         }
 123
 124         public static function getMoveToken($pageid, $title)
 125         {
 126                 global $wgUser;
 127                 if(!$wgUser->isAllowed('move'))
 128                         return false;
 129
 130                 static $cachedMoveToken = null;
 131                 if(!is_null($cachedMoveToken))
 132                         return $cachedMoveToken;
 133
 134                 $cachedMoveToken = $wgUser->editToken();
 135                 return $cachedMoveToken;
 136         }
 137
 138         public static function getBlockToken($pageid, $title)
 139         {
 140                 global $wgUser;
 141                 if(!$wgUser->isAllowed('block'))
 142                         return false;
 143
 144                 static $cachedBlockToken = null;
 145                 if(!is_null($cachedBlockToken))
 146                         return $cachedBlockToken;
 147
 148                 $cachedBlockToken = $wgUser->editToken();
 149                 return $cachedBlockToken;
 150         }
 151
 152         public static function getUnblockToken($pageid, $title)
 153         {
 154                 // Currently, this is exactly the same as the block token
 155                 return self::getBlockToken($pageid, $title);
 156         }
 157
 158         public static function getEmailToken($pageid, $title)
 159         {
 160                 global $wgUser;
 161                 if(!$wgUser->canSendEmail() || $wgUser->isBlockedFromEmailUser())
 162                         return false;
 163
 164                 static $cachedEmailToken = null;
 165                 if(!is_null($cachedEmailToken))
 166                         return $cachedEmailToken;
 167
 168                 $cachedEmailToken = $wgUser->editToken();
 169                 return $cachedEmailToken;
 170         }
 171
 172         public static function getImportToken($pageid, $title)
 173         {
 174                 global $wgUser;
 175                 if(!$wgUser->isAllowed('import'))
 176                         return false;
 177
 178                 static $cachedImportToken = null;
 179                 if(!is_null($cachedImportToken))
 180                         return $cachedImportToken;
 181
 182                 $cachedImportToken = $wgUser->editToken();
 183                 return $cachedImportToken;
 184         }
 185
 186         public function execute() {
 187
 188                 global $wgUser;
 189
 190                 $params = $this->extractRequestParams();
 191                 $fld_protection = $fld_talkid = $fld_subjectid = $fld_url = $fld_readable = false;
 192                 if(!is_null($params['prop'])) {
 193                         $prop = array_flip($params['prop']);
 194                         $fld_protection = isset($prop['protection']);
 195                         $fld_talkid = isset($prop['talkid']);
 196                         $fld_subjectid = isset($prop['subjectid']);
 197                         $fld_url = isset($prop['url']);
 198                         $fld_readable = isset($prop['readable']);
 199                 }
 200
 201                 $pageSet = $this->getPageSet();
 202                 $titles = $pageSet->getGoodTitles();
 203                 $missing = $pageSet->getMissingTitles();
 204                 $result = $this->getResult();
 205
 206                 $pageRestrictions = $pageSet->getCustomField('page_restrictions');
 207                 $pageIsRedir = $pageSet->getCustomField('page_is_redirect');
 208                 $pageIsNew = $pageSet->getCustomField('page_is_new');
 209                 $pageCounter = $pageSet->getCustomField('page_counter');
 210                 $pageTouched = $pageSet->getCustomField('page_touched');
 211                 $pageLatest = $pageSet->getCustomField('page_latest');
 212                 $pageLength = $pageSet->getCustomField('page_len');
 213
 214                 $db = $this->getDB();
 215                 if ($fld_protection && count($titles)) {
 216                         $this->addTables('page_restrictions');
 217                         $this->addFields(array('pr_page', 'pr_type', 'pr_level', 'pr_expiry', 'pr_cascade'));
 218                         $this->addWhereFld('pr_page', array_keys($titles));
 219
 220                         $res = $this->select(__METHOD__);
 221                         while($row = $db->fetchObject($res)) {
 222                                 $a = array(
 223                                         'type' => $row->pr_type,
 224                                         'level' => $row->pr_level,
 225                                         'expiry' => Block::decodeExpiry( $row->pr_expiry, TS_ISO_8601 )
 226                                 );
 227                                 if($row->pr_cascade)
 228                                         $a['cascade'] = '';
 229                                 $protections[$row->pr_page][] = $a;
 230
 231                                 # Also check old restrictions
 232                                 if($pageRestrictions[$row->pr_page]) {
 233                                         foreach(explode(':', trim($pageRestrictions[$pageid])) as $restrict) {
 234                                                 $temp = explode('=', trim($restrict));
 235                                                 if(count($temp) == 1) {
 236                                                         // old old format should be treated as edit/move restriction
 237                                                         $restriction = trim( $temp[0] );
 238                                                         if($restriction == '')
 239                                                                 continue;
 240                                                         $protections[$row->pr_page][] = array(
 241                                                                 'type' => 'edit',
 242                                                                 'level' => $restriction,
 243                                                                 'expiry' => 'infinity',
 244                                                         );
 245                                                         $protections[$row->pr_page][] = array(
 246                                                                 'type' => 'move',
 247                                                                 'level' => $restriction,
 248                                                                 'expiry' => 'infinity',
 249                                                         );
 250                                                 } else {
 251                                                         $restriction = trim( $temp[1] );
 252                                                         if($restriction == '')
 253                                                                 continue;
 254                                                         $protections[$row->pr_page][] = array(
 255                                                                 'type' => $temp[0],
 256                                                                 'level' => $restriction,
 257                                                                 'expiry' => 'infinity',
 258                                                         );
 259                                                 }
 260                                         }
 261                                 }
 262                         }
 263                         $db->freeResult($res);
 264
 265                         $imageIds = array();
 266                         foreach ($titles as $id => $title)
 267                                 if ($title->getNamespace() == NS_FILE)
 268                                         $imageIds[] = $id;
 269                         // To avoid code duplication
 270                         $cascadeTypes = array(
 271                                 array(
 272                                         'prefix' => 'tl',
 273                                         'table' => 'templatelinks',
 274                                         'ns' => 'tl_namespace',
 275                                         'title' => 'tl_title',
 276                                         'ids' => array_diff(array_keys($titles), $imageIds)
 277                                 ),
 278                                 array(
 279                                         'prefix' => 'il',
 280                                         'table' => 'imagelinks',
 281                                         'ns' => NS_FILE,
 282                                         'title' => 'il_to',
 283                                         'ids' => $imageIds
 284                                 )
 285                         );
 286
 287                         foreach ($cascadeTypes as $type)
 288                         {
 289                                 if (count($type['ids']) != 0) {
 290                                         $this->resetQueryParams();
 291                                         $this->addTables(array('page_restrictions', $type['table']));
 292                                         $this->addTables('page', 'page_source');
 293                                         $this->addTables('page', 'page_target');
 294                                         $this->addFields(array('pr_type', 'pr_level', 'pr_expiry',
 295                                                         'page_target.page_id AS page_target_id',
 296                                                         'page_source.page_namespace AS page_source_namespace',
 297                                                         'page_source.page_title AS page_source_title'));
 298                                         $this->addWhere(array("{$type['prefix']}_from = pr_page",
 299                                                         'page_target.page_namespace = '.$type['ns'],
 300                                                         'page_target.page_title = '.$type['title'],
 301                                                         'page_source.page_id = pr_page'
 302                                         ));
 303                                         $this->addWhereFld('pr_cascade', 1);
 304                                         $this->addWhereFld('page_target.page_id', $type['ids']);
 305
 306                                         $res = $this->select(__METHOD__);
 307                                         while($row = $db->fetchObject($res)) {
 308                                                 $source = Title::makeTitle($row->page_source_namespace, $row->page_source_title);
 309                                                 $a = array(
 310                                                         'type' => $row->pr_type,
 311                                                         'level' => $row->pr_level,
 312                                                         'expiry' => Block::decodeExpiry( $row->pr_expiry, TS_ISO_8601 ),
 313                                                         'source' => $source->getPrefixedText()
 314                                                 );
 315                                                 $protections[$row->page_target_id][] = $a;
 316                                         }
 317                                         $db->freeResult($res);
 318                                 }
 319                         }
 320                 }
 321
 322                 // We don't need to check for pt stuff if there are no nonexistent titles
 323                 if($fld_protection && count($missing))
 324                 {
 325                         $this->resetQueryParams();
 326                         // Construct a custom WHERE clause that matches all titles in $missing
 327                         $lb = new LinkBatch($missing);
 328                         $this->addTables('protected_titles');
 329                         $this->addFields(array('pt_title', 'pt_namespace', 'pt_create_perm', 'pt_expiry'));
 330                         $this->addWhere($lb->constructSet('pt', $db));
 331                         $res = $this->select(__METHOD__);
 332                         $prottitles = array();
 333                         while($row = $db->fetchObject($res)) {
 334                                 $prottitles[$row->pt_namespace][$row->pt_title][] = array(
 335                                         'type' => 'create',
 336                                         'level' => $row->pt_create_perm,
 337                                         'expiry' => Block::decodeExpiry($row->pt_expiry, TS_ISO_8601)
 338                                 );
 339                         }
 340                         $db->freeResult($res);
 341
 342                         $images = array();
 343                         $others = array();
 344                         foreach ($missing as $title)
 345                                 if ($title->getNamespace() == NS_FILE)
 346                                         $images[] = $title->getDBKey();
 347                                 else
 348                                         $others[] = $title;
 349
 350                         if (count($others) != 0) {
 351                                 $lb = new LinkBatch($others);
 352                                 $this->resetQueryParams();
 353                                 $this->addTables(array('page_restrictions', 'page', 'templatelinks'));
 354                                 $this->addFields(array('pr_type', 'pr_level', 'pr_expiry',
 355                                                 'page_title', 'page_namespace',
 356                                                 'tl_title', 'tl_namespace'));
 357                                 $this->addWhere($lb->constructSet('tl', $db));
 358                                 $this->addWhere('pr_page = page_id');
 359                                 $this->addWhere('pr_page = tl_from');
 360                                 $this->addWhereFld('pr_cascade', 1);
 361
 362                                 $res = $this->select(__METHOD__);
 363                                 while($row = $db->fetchObject($res)) {
 364                                         $source = Title::makeTitle($row->page_namespace, $row->page_title);
 365                                         $a = array(
 366                                                 'type' => $row->pr_type,
 367                                                 'level' => $row->pr_level,
 368                                                 'expiry' => Block::decodeExpiry( $row->pr_expiry, TS_ISO_8601 ),
 369                                                 'source' => $source->getPrefixedText()
 370                                         );
 371                                         $prottitles[$row->tl_namespace][$row->tl_title][] = $a;
 372                                 }
 373                                 $db->freeResult($res);
 374                         }
 375
 376                         if (count($images) != 0) {
 377                                 $this->resetQueryParams();
 378                                 $this->addTables(array('page_restrictions', 'page', 'imagelinks'));
 379                                 $this->addFields(array('pr_type', 'pr_level', 'pr_expiry',
 380                                                 'page_title', 'page_namespace', 'il_to'));
 381                                 $this->addWhere('pr_page = page_id');
 382                                 $this->addWhere('pr_page = il_from');
 383                                 $this->addWhereFld('pr_cascade', 1);
 384                                 $this->addWhereFld('il_to', $images);
 385
 386                                 $res = $this->select(__METHOD__);
 387                                 while($row = $db->fetchObject($res)) {
 388                                         $source = Title::makeTitle($row->page_namespace, $row->page_title);
 389                                         $a = array(
 390                                                 'type' => $row->pr_type,
 391                                                 'level' => $row->pr_level,
 392                                                 'expiry' => Block::decodeExpiry( $row->pr_expiry, TS_ISO_8601 ),
 393                                                 'source' => $source->getPrefixedText()
 394                                         );
 395                                         $prottitles[NS_FILE][$row->il_to][] = $a;
 396                                 }
 397                                 $db->freeResult($res);
 398                         }
 399                 }
 400
 401                 // Run the talkid/subjectid query
 402                 if($fld_talkid || $fld_subjectid)
 403                 {
 404                         $talktitles = $subjecttitles =
 405                                 $talkids = $subjectids = array();
 406                         $everything = array_merge($titles, $missing);
 407                         foreach($everything as $t)
 408                         {
 409                                 if(MWNamespace::isTalk($t->getNamespace()))
 410                                 {
 411                                         if($fld_subjectid)
 412                                                 $subjecttitles[] = $t->getSubjectPage();
 413                                 }
 414                                 else if($fld_talkid)
 415                                         $talktitles[] = $t->getTalkPage();
 416                         }
 417                         if(count($talktitles) || count($subjecttitles))
 418                         {
 419                                 // Construct a custom WHERE clause that matches
 420                                 // all titles in $talktitles and $subjecttitles
 421                                 $lb = new LinkBatch(array_merge($talktitles, $subjecttitles));
 422                                 $this->resetQueryParams();
 423                                 $this->addTables('page');
 424                                 $this->addFields(array('page_title', 'page_namespace', 'page_id'));
 425                                 $this->addWhere($lb->constructSet('page', $db));
 426                                 $res = $this->select(__METHOD__);
 427                                 while($row = $db->fetchObject($res))
 428                                 {
 429                                         if(MWNamespace::isTalk($row->page_namespace))
 430                                                 $talkids[MWNamespace::getSubject($row->page_namespace)][$row->page_title] = $row->page_id;
 431                                         else
 432                                                 $subjectids[MWNamespace::getTalk($row->page_namespace)][$row->page_title] = $row->page_id;
 433                                 }
 434                         }
 435                 }
 436
 437                 $count = 0;
 438                 $fit = true;
 439                 ksort($titles); // Ensure they're always in the same order
 440                 foreach ( $titles as $pageid => $title ) {
 441                         $count++;
 442                         if(!is_null($params['continue']))
 443                                 if($count < $params['continue'])
 444                                         continue;
 445                         $pageInfo = array (
 446                                 'touched' => wfTimestamp(TS_ISO_8601, $pageTouched[$pageid]),
 447                                 'lastrevid' => intval($pageLatest[$pageid]),
 448                                 'counter' => intval($pageCounter[$pageid]),
 449                                 'length' => intval($pageLength[$pageid]),
 450                         );
 451
 452                         if ($pageIsRedir[$pageid])
 453                                 $pageInfo['redirect'] = '';
 454
 455                         if ($pageIsNew[$pageid])
 456                                 $pageInfo['new'] = '';
 457
 458                         if (!is_null($params['token'])) {
 459                                 $tokenFunctions = $this->getTokenFunctions();
 460                                 $pageInfo['starttimestamp'] = wfTimestamp(TS_ISO_8601, time());
 461                                 foreach($params['token'] as $t)
 462                                 {
 463                                         $val = call_user_func($tokenFunctions[$t], $pageid, $title);
 464                                         if($val === false)
 465                                                 $this->setWarning("Action '$t' is not allowed for the current user");
 466                                         else
 467                                                 $pageInfo[$t . 'token'] = $val;
 468                                 }
 469                         }
 470
 471                         if($fld_protection) {
 472                                 $pageInfo['protection'] = array();
 473                                 if (isset($protections[$pageid])) {
 474                                         $pageInfo['protection'] = $protections[$pageid];
 475                                         $result->setIndexedTagName($pageInfo['protection'], 'pr');
 476                                 }
 477                         }
 478                         if($fld_talkid && isset($talkids[$title->getNamespace()][$title->getDBKey()]))
 479                                 $pageInfo['talkid'] = $talkids[$title->getNamespace()][$title->getDBKey()];
 480                         if($fld_subjectid && isset($subjectids[$title->getNamespace()][$title->getDBKey()]))
 481                                 $pageInfo['subjectid'] = $subjectids[$title->getNamespace()][$title->getDBKey()];
 482                         if($fld_url) {
 483                                 $pageInfo['fullurl'] = $title->getFullURL();
 484                                 $pageInfo['editurl'] = $title->getFullURL('action=edit');
 485                         }
 486                         if($fld_readable)
 487                                 if($title->userCanRead())
 488                                         $pageInfo['readable'] = '';
 489
 490                         $fit = $result->addValue(array (
 491                                 'query',
 492                                 'pages'
 493                         ), $pageid, $pageInfo);
 494                         if(!$fit)
 495                         {
 496                                 $this->setContinueEnumParameter('continue', $count);
 497                                 break;
 498                         }
 499                 }
 500
 501                 // Get properties for missing titles if requested
 502                 if($fit && (!is_null($params['token']) || $fld_protection ||
 503                                 $fld_talkid || $fld_subjectid || $fld_url ||
 504                                 $fld_readable))
 505                 {
 506                         foreach($missing as $pageid => $title) {
 507                                 $count++;
 508                                 if(!is_null($params['continue']))
 509                                         if($count < $params['continue'])
 510                                                 continue;
 511                                 $r = array();
 512                                 if(!is_null($params['token']))
 513                                 {
 514                                         $tokenFunctions = $this->getTokenFunctions();
 515                                         $res['query']['pages'][$pageid]['starttimestamp'] = wfTimestamp(TS_ISO_8601, time());
 516                                         foreach($params['token'] as $t)
 517                                         {
 518                                                 $val = call_user_func($tokenFunctions[$t], $pageid, $title);
 519                                                 if($val === false)
 520                                                         $this->setWarning("Action '$t' is not allowed for the current user");
 521                                                 else
 522                                                         $r[$t . 'token'] = $val;
 523                                         }
 524                                 }
 525                                 if($fld_protection)
 526                                 {
 527                                         // Apparently the XML formatting code doesn't like array(null)
 528                                         // This is painful to fix, so we'll just work around it
 529                                         if(isset($prottitles[$title->getNamespace()][$title->getDBkey()]))
 530                                                 $val = $prottitles[$title->getNamespace()][$title->getDBkey()];
 531                                         else
 532                                                 $val = array();
 533                                         $result->setIndexedTagName($val, 'pr');
 534                                         $r['protection'] = $val;
 535                                 }
 536                                 if($fld_talkid && isset($talkids[$title->getNamespace()][$title->getDbKey()]))
 537                                         $r['talkid'] = $talkids[$title->getNamespace()][$title->getDbKey()];
 538                                 if($fld_subjectid && isset($subjectids[$title->getNamespace()][$title->getDbKey()]))
 539                                         $r['subjectid'] = $subjectids[$title->getNamespace()][$title->getDbKey()];
 540                                 if($fld_url)
 541                                 {
 542                                         $r['fullurl'] = $title->getFullURL();
 543                                         $r['editurl'] = $title->getFullURL('action=edit');
 544                                 }
 545                                 if($fld_readable)
 546                                         if($title->userCanRead())
 547                                                 $r['readable'] = '';
 548                                 $fit = $result->addValue(array('query', 'pages'), $pageid, $r);
 549                                 if(!$fit)
 550                                 {
 551                                         $this->setContinueEnumParameter('continue', $count);
 552                                         break;
 553                                 }
 554                         }
 555                 }
 556         }
 557
 558         public function getAllowedParams() {
 559                 return array (
 560                         'prop' => array (
 561                                 ApiBase :: PARAM_DFLT => NULL,
 562                                 ApiBase :: PARAM_ISMULTI => true,
 563                                 ApiBase :: PARAM_TYPE => array (
 564                                         'protection',
 565                                         'talkid',
 566                                         'subjectid',
 567                                         'url',
 568                                         'readable',
 569                                 )),
 570                         'token' => array (
 571                                 ApiBase :: PARAM_DFLT => NULL,
 572                                 ApiBase :: PARAM_ISMULTI => true,
 573                                 ApiBase :: PARAM_TYPE => array_keys($this->getTokenFunctions())
 574                         ),
 575                         'continue' => null,
 576                 );
 577         }
 578
 579         public function getParamDescription() {
 580                 return array (
 581                         'prop' => array (
 582                                 'Which additional properties to get:',
 583                                 ' protection   - List the protection level of each page',
 584                                 ' talkid       - The page ID of the talk page for each non-talk page',
 585                                 ' subjectid     - The page ID of the parent page for each talk page'
 586                         ),
 587                         'token' => 'Request a token to perform a data-modifying action on a page',
 588                         'continue' => 'When more results are available, use this to continue',
 589                 );
 590         }
 591
 592
 593         public function getDescription() {
 594                 return 'Get basic page information such as namespace, title, last touched date, ...';
 595         }
 596
 597         protected function getExamples() {
 598                 return array (
 599                         'api.php?action=query&prop=info&titles=Main%20Page',
 600                         'api.php?action=query&prop=info&inprop=protection&titles=Main%20Page'
 601                 );
 602         }
 603
 604         public function getVersion() {
 605                 return __CLASS__ . ': $Id$';
 606         }
 607 }