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