includes/api/ApiQuerySiteinfo.php

   1 <?php
   2
   3 /**
   4  * Created on Sep 25, 2006
   5  *
   6  * API for MediaWiki 1.8+
   7  *
   8  * Copyright © 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 action to return meta information about the wiki site.
  33  *
  34  * @ingroup API
  35  */
  36 class ApiQuerySiteinfo extends ApiQueryBase {
  37
  38         public function __construct( $query, $moduleName ) {
  39                 parent::__construct( $query, $moduleName, 'si' );
  40         }
  41
  42         public function execute() {
  43                 $params = $this->extractRequestParams();
  44                 $done = array();
  45                 foreach ( $params['prop'] as $p ) {
  46                         switch ( $p ) {
  47                                 case 'general':
  48                                         $fit = $this->appendGeneralInfo( $p );
  49                                         break;
  50                                 case 'namespaces':
  51                                         $fit = $this->appendNamespaces( $p );
  52                                         break;
  53                                 case 'namespacealiases':
  54                                         $fit = $this->appendNamespaceAliases( $p );
  55                                         break;
  56                                 case 'specialpagealiases':
  57                                         $fit = $this->appendSpecialPageAliases( $p );
  58                                         break;
  59                                 case 'magicwords':
  60                                         $fit = $this->appendMagicWords( $p );
  61                                         break;
  62                                 case 'interwikimap':
  63                                         $filteriw = isset( $params['filteriw'] ) ? $params['filteriw'] : false;
  64                                         $fit = $this->appendInterwikiMap( $p, $filteriw );
  65                                         break;
  66                                 case 'dbrepllag':
  67                                         $fit = $this->appendDbReplLagInfo( $p, $params['showalldb'] );
  68                                         break;
  69                                 case 'statistics':
  70                                         $fit = $this->appendStatistics( $p );
  71                                         break;
  72                                 case 'usergroups':
  73                                         $fit = $this->appendUserGroups( $p, $params['numberingroup'] );
  74                                         break;
  75                                 case 'extensions':
  76                                         $fit = $this->appendExtensions( $p );
  77                                         break;
  78                                 case 'fileextensions':
  79                                         $fit = $this->appendFileExtensions( $p );
  80                                         break;
  81                                 case 'rightsinfo':
  82                                         $fit = $this->appendRightsInfo( $p );
  83                                         break;
  84                                 case 'languages':
  85                                         $fit = $this->appendLanguages( $p );
  86                                         break;
  87                                 default:
  88                                         ApiBase::dieDebug( __METHOD__, "Unknown prop=$p" );
  89                         }
  90                         if ( !$fit ) {
  91                                 // Abuse siprop as a query-continue parameter
  92                                 // and set it to all unprocessed props
  93                                 $this->setContinueEnumParameter( 'prop', implode( '|',
  94                                                 array_diff( $params['prop'], $done ) ) );
  95                                 break;
  96                         }
  97                         $done[] = $p;
  98                 }
  99         }
 100
 101         protected function appendGeneralInfo( $property ) {
 102                 global $wgContLang, $wgLang;
 103
 104                 $data = array();
 105                 $mainPage = Title::newFromText( wfMsgForContent( 'mainpage' ) );
 106                 $data['mainpage'] = $mainPage->getPrefixedText();
 107                 $data['base'] = $mainPage->getFullUrl();
 108                 $data['sitename'] = $GLOBALS['wgSitename'];
 109                 $data['generator'] = "MediaWiki {$GLOBALS['wgVersion']}";
 110                 $data['phpversion'] = phpversion();
 111                 $data['phpsapi'] = php_sapi_name();
 112                 $data['dbtype'] = $GLOBALS['wgDBtype'];
 113                 $data['dbversion'] = $this->getDB()->getServerVersion();
 114
 115                 $svn = SpecialVersion::getSvnRevision( $GLOBALS['IP'] );
 116                 if ( $svn ) {
 117                         $data['rev'] = $svn;
 118                 }
 119
 120                 // 'case-insensitive' option is reserved for future
 121                 $data['case'] = $GLOBALS['wgCapitalLinks'] ? 'first-letter' : 'case-sensitive';
 122
 123                 if ( isset( $GLOBALS['wgRightsCode'] ) ) {
 124                         $data['rightscode'] = $GLOBALS['wgRightsCode'];
 125                 }
 126                 $data['rights'] = $GLOBALS['wgRightsText'];
 127                 $data['lang'] = $GLOBALS['wgLanguageCode'];
 128                 if ( $wgContLang->isRTL() ) {
 129                         $data['rtl'] = '';
 130                 }
 131                 $data['fallback8bitEncoding'] = $wgLang->fallback8bitEncoding();
 132
 133                 if ( wfReadOnly() ) {
 134                         $data['readonly'] = '';
 135                         $data['readonlyreason'] = wfReadOnlyReason();
 136                 }
 137                 if ( $GLOBALS['wgEnableWriteAPI'] ) {
 138                         $data['writeapi'] = '';
 139                 }
 140
 141                 $tz = $GLOBALS['wgLocaltimezone'];
 142                 $offset = $GLOBALS['wgLocalTZoffset'];
 143                 if ( is_null( $tz ) ) {
 144                         $tz = 'UTC';
 145                         $offset = 0;
 146                 } elseif ( is_null( $offset ) ) {
 147                         $offset = 0;
 148                 }
 149                 $data['timezone'] = $tz;
 150                 $data['timeoffset'] = intval( $offset );
 151                 $data['articlepath'] = $GLOBALS['wgArticlePath'];
 152                 $data['scriptpath'] = $GLOBALS['wgScriptPath'];
 153                 $data['script'] = $GLOBALS['wgScript'];
 154                 $data['variantarticlepath'] = $GLOBALS['wgVariantArticlePath'];
 155                 $data['server'] = $GLOBALS['wgServer'];
 156                 $data['wikiid'] = wfWikiID();
 157                 $data['time'] = wfTimestamp( TS_ISO_8601, time() );
 158
 159                 return $this->getResult()->addValue( 'query', $property, $data );
 160         }
 161
 162         protected function appendNamespaces( $property ) {
 163                 global $wgContLang;
 164                 $data = array();
 165                 foreach ( $wgContLang->getFormattedNamespaces() as $ns => $title ) {
 166                         $data[$ns] = array(
 167                                 'id' => intval( $ns ),
 168                                 'case' => MWNamespace::isCapitalized( $ns ) ? 'first-letter' : 'case-sensitive',
 169                         );
 170                         ApiResult::setContent( $data[$ns], $title );
 171                         $canonical = MWNamespace::getCanonicalName( $ns );
 172
 173                         if ( MWNamespace::hasSubpages( $ns ) ) {
 174                                 $data[$ns]['subpages'] = '';
 175                         }
 176
 177                         if ( $canonical ) {
 178                                 $data[$ns]['canonical'] = strtr( $canonical, '_', ' ' );
 179                         }
 180
 181                         if ( MWNamespace::isContent( $ns ) ) {
 182                                 $data[$ns]['content'] = '';
 183                         }
 184                 }
 185
 186                 $this->getResult()->setIndexedTagName( $data, 'ns' );
 187                 return $this->getResult()->addValue( 'query', $property, $data );
 188         }
 189
 190         protected function appendNamespaceAliases( $property ) {
 191                 global $wgNamespaceAliases, $wgContLang;
 192                 $aliases = array_merge( $wgNamespaceAliases, $wgContLang->getNamespaceAliases() );
 193                 $namespaces = $wgContLang->getNamespaces();
 194                 $data = array();
 195                 foreach ( $aliases as $title => $ns ) {
 196                         if ( $namespaces[$ns] == $title ) {
 197                                 // Don't list duplicates
 198                                 continue;
 199                         }
 200                         $item = array(
 201                                 'id' => intval( $ns )
 202                         );
 203                         ApiResult::setContent( $item, strtr( $title, '_', ' ' ) );
 204                         $data[] = $item;
 205                 }
 206
 207                 $this->getResult()->setIndexedTagName( $data, 'ns' );
 208                 return $this->getResult()->addValue( 'query', $property, $data );
 209         }
 210
 211         protected function appendSpecialPageAliases( $property ) {
 212                 global $wgLang;
 213                 $data = array();
 214                 foreach ( $wgLang->getSpecialPageAliases() as $specialpage => $aliases )
 215                 {
 216                         $arr = array( 'realname' => $specialpage, 'aliases' => $aliases );
 217                         $this->getResult()->setIndexedTagName( $arr['aliases'], 'alias' );
 218                         $data[] = $arr;
 219                 }
 220                 $this->getResult()->setIndexedTagName( $data, 'specialpage' );
 221                 return $this->getResult()->addValue( 'query', $property, $data );
 222         }
 223
 224         protected function appendMagicWords( $property ) {
 225                 global $wgContLang;
 226                 $data = array();
 227                 foreach ( $wgContLang->getMagicWords() as $magicword => $aliases ) {
 228                         $caseSensitive = array_shift( $aliases );
 229                         $arr = array( 'name' => $magicword, 'aliases' => $aliases );
 230                         if ( $caseSensitive ) {
 231                                 $arr['case-sensitive'] = '';
 232                         }
 233                         $this->getResult()->setIndexedTagName( $arr['aliases'], 'alias' );
 234                         $data[] = $arr;
 235                 }
 236                 $this->getResult()->setIndexedTagName( $data, 'magicword' );
 237                 return $this->getResult()->addValue( 'query', $property, $data );
 238         }
 239
 240         protected function appendInterwikiMap( $property, $filter ) {
 241                 $this->resetQueryParams();
 242                 $this->addTables( 'interwiki' );
 243                 $this->addFields( array( 'iw_prefix', 'iw_local', 'iw_url' ) );
 244
 245                 if ( $filter === 'local' ) {
 246                         $this->addWhere( 'iw_local = 1' );
 247                 } elseif ( $filter === '!local' ) {
 248                         $this->addWhere( 'iw_local = 0' );
 249                 } elseif ( $filter ) {
 250                         ApiBase::dieDebug( __METHOD__, "Unknown filter=$filter" );
 251                 }
 252
 253                 $this->addOption( 'ORDER BY', 'iw_prefix' );
 254
 255                 $db = $this->getDB();
 256                 $res = $this->select( __METHOD__ );
 257
 258                 $data = array();
 259                 $langNames = Language::getLanguageNames();
 260                 while ( $row = $db->fetchObject( $res ) ) {
 261                         $val = array();
 262                         $val['prefix'] = $row->iw_prefix;
 263                         if ( $row->iw_local == '1' ) {
 264                                 $val['local'] = '';
 265                         }
 266 //                      $val['trans'] = intval( $row->iw_trans ); // should this be exposed?
 267                         if ( isset( $langNames[$row->iw_prefix] ) ) {
 268                                 $val['language'] = $langNames[$row->iw_prefix];
 269                         }
 270                         $val['url'] = $row->iw_url;
 271
 272                         $data[] = $val;
 273                 }
 274                 $db->freeResult( $res );
 275
 276                 $this->getResult()->setIndexedTagName( $data, 'iw' );
 277                 return $this->getResult()->addValue( 'query', $property, $data );
 278         }
 279
 280         protected function appendDbReplLagInfo( $property, $includeAll ) {
 281                 global $wgShowHostnames;
 282                 $data = array();
 283                 if ( $includeAll ) {
 284                         if ( !$wgShowHostnames ) {
 285                                 $this->dieUsage( 'Cannot view all servers info unless $wgShowHostnames is true', 'includeAllDenied' );
 286                         }
 287
 288                         $lb = wfGetLB();
 289                         $lags = $lb->getLagTimes();
 290                         foreach ( $lags as $i => $lag ) {
 291                                 $data[] = array(
 292                                         'host' => $lb->getServerName( $i ),
 293                                         'lag' => $lag
 294                                 );
 295                         }
 296                 } else {
 297                         list( $host, $lag ) = wfGetLB()->getMaxLag();
 298                         $data[] = array(
 299                                 'host' => $wgShowHostnames ? $host : '',
 300                                 'lag' => intval( $lag )
 301                         );
 302                 }
 303
 304                 $result = $this->getResult();
 305                 $result->setIndexedTagName( $data, 'db' );
 306                 return $this->getResult()->addValue( 'query', $property, $data );
 307         }
 308
 309         protected function appendStatistics( $property ) {
 310                 global $wgDisableCounters;
 311                 $data = array();
 312                 $data['pages'] = intval( SiteStats::pages() );
 313                 $data['articles'] = intval( SiteStats::articles() );
 314                 if ( !$wgDisableCounters ) {
 315                         $data['views'] = intval( SiteStats::views() );
 316                 }
 317                 $data['edits'] = intval( SiteStats::edits() );
 318                 $data['images'] = intval( SiteStats::images() );
 319                 $data['users'] = intval( SiteStats::users() );
 320                 $data['activeusers'] = intval( SiteStats::activeUsers() );
 321                 $data['admins'] = intval( SiteStats::numberingroup( 'sysop' ) );
 322                 $data['jobs'] = intval( SiteStats::jobs() );
 323                 return $this->getResult()->addValue( 'query', $property, $data );
 324         }
 325
 326         protected function appendUserGroups( $property, $numberInGroup ) {
 327                 global $wgGroupPermissions;
 328                 $data = array();
 329                 foreach ( $wgGroupPermissions as $group => $permissions ) {
 330                         $arr = array(
 331                                 'name' => $group,
 332                                 'rights' => array_keys( $permissions, true ),
 333                         );
 334                         if ( $numberInGroup ) {
 335                                 $arr['number'] = SiteStats::numberInGroup( $group );
 336                         }
 337
 338                         $this->getResult()->setIndexedTagName( $arr['rights'], 'permission' );
 339                         $data[] = $arr;
 340                 }
 341
 342                 $this->getResult()->setIndexedTagName( $data, 'group' );
 343                 return $this->getResult()->addValue( 'query', $property, $data );
 344         }
 345
 346         protected function appendFileExtensions( $property ) {
 347                 global $wgFileExtensions;
 348
 349                 $data = array();
 350                 foreach ( $wgFileExtensions as $ext ) {
 351                         $data[] = array( 'ext' => $ext );
 352                 }
 353                 $this->getResult()->setIndexedTagName( $data, 'fe' );
 354                 return $this->getResult()->addValue( 'query', $property, $data );
 355         }
 356
 357         protected function appendExtensions( $property ) {
 358                 global $wgExtensionCredits;
 359                 $data = array();
 360                 foreach ( $wgExtensionCredits as $type => $extensions ) {
 361                         foreach ( $extensions as $ext ) {
 362                                 $ret = array();
 363                                 $ret['type'] = $type;
 364                                 if ( isset( $ext['name'] ) ) {
 365                                         $ret['name'] = $ext['name'];
 366                                 }
 367                                 if ( isset( $ext['description'] ) ) {
 368                                         $ret['description'] = $ext['description'];
 369                                 }
 370                                 if ( isset( $ext['descriptionmsg'] ) ) {
 371                                         // Can be a string or array( key, param1, param2, ... )
 372                                         if ( is_array( $ext['descriptionmsg'] ) ) {
 373                                                 $ret['descriptionmsg'] = $ext['descriptionmsg'][0];
 374                                                 $ret['descriptionmsgparams'] = array_slice( $ext['descriptionmsg'], 1 );
 375                                                 $this->getResult()->setIndexedTagName( $ret['descriptionmsgparams'], 'param' );
 376                                         } else {
 377                                                 $ret['descriptionmsg'] = $ext['descriptionmsg'];
 378                                         }
 379                                 }
 380                                 if ( isset( $ext['author'] ) ) {
 381                                         $ret['author'] = is_array( $ext['author'] ) ?
 382                                                 implode( ', ', $ext['author' ] ) : $ext['author'];
 383                                 }
 384                                 if ( isset( $ext['url'] ) ) {
 385                                         $ret['url'] = $ext['url'];
 386                                 }
 387                                 if ( isset( $ext['version'] ) ) {
 388                                                 $ret['version'] = $ext['version'];
 389                                 } elseif ( isset( $ext['svn-revision'] ) &&
 390                                         preg_match( '/\$(?:Rev|LastChangedRevision|Revision): *(\d+)/',
 391                                                 $ext['svn-revision'], $m ) )
 392                                 {
 393                                                 $ret['version'] = 'r' . $m[1];
 394                                 }
 395                                 $data[] = $ret;
 396                         }
 397                 }
 398
 399                 $this->getResult()->setIndexedTagName( $data, 'ext' );
 400                 return $this->getResult()->addValue( 'query', $property, $data );
 401         }
 402
 403
 404         protected function appendRightsInfo( $property ) {
 405                 global $wgRightsPage, $wgRightsUrl, $wgRightsText;
 406                 $title = Title::newFromText( $wgRightsPage );
 407                 $url = $title ? $title->getFullURL() : $wgRightsUrl;
 408                 $text = $wgRightsText;
 409                 if ( !$text && $title ) {
 410                         $text = $title->getPrefixedText();
 411                 }
 412
 413                 $data = array(
 414                         'url' => $url ? $url : '',
 415                         'text' => $text ?  $text : ''
 416                 );
 417
 418                 return $this->getResult()->addValue( 'query', $property, $data );
 419         }
 420
 421         public function appendLanguages( $property ) {
 422                 $data = array();
 423                 foreach ( Language::getLanguageNames() as $code => $name ) {
 424                         $lang = array( 'code' => $code );
 425                         ApiResult::setContent( $lang, $name );
 426                         $data[] = $lang;
 427                 }
 428                 $this->getResult()->setIndexedTagName( $data, 'lang' );
 429                 return $this->getResult()->addValue( 'query', $property, $data );
 430         }
 431
 432         public function getAllowedParams() {
 433                 return array(
 434                         'prop' => array(
 435                                 ApiBase::PARAM_DFLT => 'general',
 436                                 ApiBase::PARAM_ISMULTI => true,
 437                                 ApiBase::PARAM_TYPE => array(
 438                                         'general',
 439                                         'namespaces',
 440                                         'namespacealiases',
 441                                         'specialpagealiases',
 442                                         'magicwords',
 443                                         'interwikimap',
 444                                         'dbrepllag',
 445                                         'statistics',
 446                                         'usergroups',
 447                                         'extensions',
 448                                         'fileextensions',
 449                                         'rightsinfo',
 450                                         'languages',
 451                                 )
 452                         ),
 453                         'filteriw' => array(
 454                                 ApiBase::PARAM_TYPE => array(
 455                                         'local',
 456                                         '!local',
 457                                 )
 458                         ),
 459                         'showalldb' => false,
 460                         'numberingroup' => false,
 461                 );
 462         }
 463
 464         public function getParamDescription() {
 465                 return array(
 466                         'prop' => array(
 467                                 'Which sysinfo properties to get:',
 468                                 ' general      - Overall system information',
 469                                 ' namespaces   - List of registered namespaces and their canonical names',
 470                                 ' namespacealiases - List of registered namespace aliases',
 471                                 ' specialpagealiases - List of special page aliases',
 472                                 ' magicwords   - List of magic words and their aliases',
 473                                 ' statistics   - Returns site statistics',
 474                                 ' interwikimap - Returns interwiki map (optionally filtered)',
 475                                 ' dbrepllag    - Returns database server with the highest replication lag',
 476                                 ' usergroups   - Returns user groups and the associated permissions',
 477                                 ' extensions   - Returns extensions installed on the wiki',
 478                                 ' fileextensions - Returns list of file extensions allowed to be uploaded',
 479                                 ' rightsinfo   - Returns wiki rights (license) information if available',
 480                                 ' languages    - Returns a list of languages MediaWiki supports',
 481                         ),
 482                         'filteriw' =>  'Return only local or only nonlocal entries of the interwiki map',
 483                         'showalldb' => 'List all database servers, not just the one lagging the most',
 484                         'numberingroup' => 'Lists the number of users in user groups',
 485                 );
 486         }
 487
 488         public function getDescription() {
 489                 return 'Return general information about the site.';
 490         }
 491
 492         public function getPossibleErrors() {
 493                 return array_merge( parent::getPossibleErrors(), array(
 494                         array( 'code' => 'includeAllDenied', 'info' => 'Cannot view all servers info unless $wgShowHostnames is true' ),
 495                 ) );
 496         }
 497
 498         protected function getExamples() {
 499                 return array(
 500                         'api.php?action=query&meta=siteinfo&siprop=general|namespaces|namespacealiases|statistics',
 501                         'api.php?action=query&meta=siteinfo&siprop=interwikimap&sifilteriw=local',
 502                         'api.php?action=query&meta=siteinfo&siprop=dbrepllag&sishowalldb',
 503                 );
 504         }
 505
 506         public function getVersion() {
 507                 return __CLASS__ . ': $Id$';
 508         }
 509 }