includes/api/ApiQuerySiteinfo.php

   1 <?php
   2 /**
   3  * API for MediaWiki 1.8+
   4  *
   5  * Created on Sep 25, 2006
   6  *
   7  * Copyright © 2006 Yuri Astrakhan <Firstname><Lastname>@gmail.com
   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  * @file
  25  */
  26
  27 if ( !defined( 'MEDIAWIKI' ) ) {
  28         // Eclipse helper - will be ignored in production
  29         require_once( 'ApiQueryBase.php' );
  30 }
  31
  32 /**
  33  * A query action to return meta information about the wiki site.
  34  *
  35  * @ingroup API
  36  */
  37 class ApiQuerySiteinfo extends ApiQueryBase {
  38
  39         public function __construct( $query, $moduleName ) {
  40                 parent::__construct( $query, $moduleName, 'si' );
  41         }
  42
  43         public function execute() {
  44                 $params = $this->extractRequestParams();
  45                 $done = array();
  46                 foreach ( $params['prop'] as $p ) {
  47                         switch ( $p ) {
  48                                 case 'general':
  49                                         $fit = $this->appendGeneralInfo( $p );
  50                                         break;
  51                                 case 'namespaces':
  52                                         $fit = $this->appendNamespaces( $p );
  53                                         break;
  54                                 case 'namespacealiases':
  55                                         $fit = $this->appendNamespaceAliases( $p );
  56                                         break;
  57                                 case 'specialpagealiases':
  58                                         $fit = $this->appendSpecialPageAliases( $p );
  59                                         break;
  60                                 case 'magicwords':
  61                                         $fit = $this->appendMagicWords( $p );
  62                                         break;
  63                                 case 'interwikimap':
  64                                         $filteriw = isset( $params['filteriw'] ) ? $params['filteriw'] : false;
  65                                         $fit = $this->appendInterwikiMap( $p, $filteriw );
  66                                         break;
  67                                 case 'dbrepllag':
  68                                         $fit = $this->appendDbReplLagInfo( $p, $params['showalldb'] );
  69                                         break;
  70                                 case 'statistics':
  71                                         $fit = $this->appendStatistics( $p );
  72                                         break;
  73                                 case 'usergroups':
  74                                         $fit = $this->appendUserGroups( $p, $params['numberingroup'] );
  75                                         break;
  76                                 case 'extensions':
  77                                         $fit = $this->appendExtensions( $p );
  78                                         break;
  79                                 case 'fileextensions':
  80                                         $fit = $this->appendFileExtensions( $p );
  81                                         break;
  82                                 case 'rightsinfo':
  83                                         $fit = $this->appendRightsInfo( $p );
  84                                         break;
  85                                 case 'languages':
  86                                         $fit = $this->appendLanguages( $p );
  87                                         break;
  88                                 default:
  89                                         ApiBase::dieDebug( __METHOD__, "Unknown prop=$p" );
  90                         }
  91                         if ( !$fit ) {
  92                                 // Abuse siprop as a query-continue parameter
  93                                 // and set it to all unprocessed props
  94                                 $this->setContinueEnumParameter( 'prop', implode( '|',
  95                                                 array_diff( $params['prop'], $done ) ) );
  96                                 break;
  97                         }
  98                         $done[] = $p;
  99                 }
 100         }
 101
 102         protected function appendGeneralInfo( $property ) {
 103                 global $wgContLang;
 104
 105                 $data = array();
 106                 $mainPage = Title::newMainPage();
 107                 $data['mainpage'] = $mainPage->getPrefixedText();
 108                 $data['base'] = $mainPage->getFullUrl();
 109                 $data['sitename'] = $GLOBALS['wgSitename'];
 110                 $data['generator'] = "MediaWiki {$GLOBALS['wgVersion']}";
 111                 $data['phpversion'] = phpversion();
 112                 $data['phpsapi'] = php_sapi_name();
 113                 $data['dbtype'] = $GLOBALS['wgDBtype'];
 114                 $data['dbversion'] = $this->getDB()->getServerVersion();
 115
 116                 $svn = SpecialVersion::getSvnRevision( $GLOBALS['IP'] );
 117                 if ( $svn ) {
 118                         $data['rev'] = $svn;
 119                 }
 120
 121                 // 'case-insensitive' option is reserved for future
 122                 $data['case'] = $GLOBALS['wgCapitalLinks'] ? 'first-letter' : 'case-sensitive';
 123
 124                 if ( isset( $GLOBALS['wgRightsCode'] ) ) {
 125                         $data['rightscode'] = $GLOBALS['wgRightsCode'];
 126                 }
 127                 $data['rights'] = $GLOBALS['wgRightsText'];
 128                 $data['lang'] = $GLOBALS['wgLanguageCode'];
 129                 if ( $wgContLang->isRTL() ) {
 130                         $data['rtl'] = '';
 131                 }
 132                 $data['fallback8bitEncoding'] = $wgContLang->fallback8bitEncoding();
 133
 134                 if ( wfReadOnly() ) {
 135                         $data['readonly'] = '';
 136                         $data['readonlyreason'] = wfReadOnlyReason();
 137                 }
 138                 if ( $GLOBALS['wgEnableWriteAPI'] ) {
 139                         $data['writeapi'] = '';
 140                 }
 141
 142                 $tz = $GLOBALS['wgLocaltimezone'];
 143                 $offset = $GLOBALS['wgLocalTZoffset'];
 144                 if ( is_null( $tz ) ) {
 145                         $tz = 'UTC';
 146                         $offset = 0;
 147                 } elseif ( is_null( $offset ) ) {
 148                         $offset = 0;
 149                 }
 150                 $data['timezone'] = $tz;
 151                 $data['timeoffset'] = intval( $offset );
 152                 $data['articlepath'] = $GLOBALS['wgArticlePath'];
 153                 $data['scriptpath'] = $GLOBALS['wgScriptPath'];
 154                 $data['script'] = $GLOBALS['wgScript'];
 155                 $data['variantarticlepath'] = $GLOBALS['wgVariantArticlePath'];
 156                 $data['server'] = $GLOBALS['wgServer'];
 157                 $data['wikiid'] = wfWikiID();
 158                 $data['time'] = wfTimestamp( TS_ISO_8601, time() );
 159
 160                 return $this->getResult()->addValue( 'query', $property, $data );
 161         }
 162
 163         protected function appendNamespaces( $property ) {
 164                 global $wgContLang;
 165                 $data = array();
 166                 foreach ( $wgContLang->getFormattedNamespaces() as $ns => $title ) {
 167                         $data[$ns] = array(
 168                                 'id' => intval( $ns ),
 169                                 'case' => MWNamespace::isCapitalized( $ns ) ? 'first-letter' : 'case-sensitive',
 170                         );
 171                         ApiResult::setContent( $data[$ns], $title );
 172                         $canonical = MWNamespace::getCanonicalName( $ns );
 173
 174                         if ( MWNamespace::hasSubpages( $ns ) ) {
 175                                 $data[$ns]['subpages'] = '';
 176                         }
 177
 178                         if ( $canonical ) {
 179                                 $data[$ns]['canonical'] = strtr( $canonical, '_', ' ' );
 180                         }
 181
 182                         if ( MWNamespace::isContent( $ns ) ) {
 183                                 $data[$ns]['content'] = '';
 184                         }
 185                 }
 186
 187                 $this->getResult()->setIndexedTagName( $data, 'ns' );
 188                 return $this->getResult()->addValue( 'query', $property, $data );
 189         }
 190
 191         protected function appendNamespaceAliases( $property ) {
 192                 global $wgNamespaceAliases, $wgContLang;
 193                 $aliases = array_merge( $wgNamespaceAliases, $wgContLang->getNamespaceAliases() );
 194                 $namespaces = $wgContLang->getNamespaces();
 195                 $data = array();
 196                 foreach ( $aliases as $title => $ns ) {
 197                         if ( $namespaces[$ns] == $title ) {
 198                                 // Don't list duplicates
 199                                 continue;
 200                         }
 201                         $item = array(
 202                                 'id' => intval( $ns )
 203                         );
 204                         ApiResult::setContent( $item, strtr( $title, '_', ' ' ) );
 205                         $data[] = $item;
 206                 }
 207
 208                 $this->getResult()->setIndexedTagName( $data, 'ns' );
 209                 return $this->getResult()->addValue( 'query', $property, $data );
 210         }
 211
 212         protected function appendSpecialPageAliases( $property ) {
 213                 global $wgContLang;
 214                 $data = array();
 215                 foreach ( $wgContLang->getSpecialPageAliases() as $specialpage => $aliases )
 216                 {
 217                         $arr = array( 'realname' => $specialpage, 'aliases' => $aliases );
 218                         $this->getResult()->setIndexedTagName( $arr['aliases'], 'alias' );
 219                         $data[] = $arr;
 220                 }
 221                 $this->getResult()->setIndexedTagName( $data, 'specialpage' );
 222                 return $this->getResult()->addValue( 'query', $property, $data );
 223         }
 224
 225         protected function appendMagicWords( $property ) {
 226                 global $wgContLang;
 227                 $data = array();
 228                 foreach ( $wgContLang->getMagicWords() as $magicword => $aliases ) {
 229                         $caseSensitive = array_shift( $aliases );
 230                         $arr = array( 'name' => $magicword, 'aliases' => $aliases );
 231                         if ( $caseSensitive ) {
 232                                 $arr['case-sensitive'] = '';
 233                         }
 234                         $this->getResult()->setIndexedTagName( $arr['aliases'], 'alias' );
 235                         $data[] = $arr;
 236                 }
 237                 $this->getResult()->setIndexedTagName( $data, 'magicword' );
 238                 return $this->getResult()->addValue( 'query', $property, $data );
 239         }
 240
 241         protected function appendInterwikiMap( $property, $filter ) {
 242                 $this->resetQueryParams();
 243                 $this->addTables( 'interwiki' );
 244                 $this->addFields( array( 'iw_prefix', 'iw_local', 'iw_url' ) );
 245
 246                 if ( $filter === 'local' ) {
 247                         $this->addWhere( 'iw_local = 1' );
 248                 } elseif ( $filter === '!local' ) {
 249                         $this->addWhere( 'iw_local = 0' );
 250                 } elseif ( $filter ) {
 251                         ApiBase::dieDebug( __METHOD__, "Unknown filter=$filter" );
 252                 }
 253
 254                 $this->addOption( 'ORDER BY', 'iw_prefix' );
 255
 256                 $res = $this->select( __METHOD__ );
 257
 258                 $data = array();
 259                 $langNames = Language::getLanguageNames();
 260                 foreach ( $res as $row ) {
 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
 275                 $this->getResult()->setIndexedTagName( $data, 'iw' );
 276                 return $this->getResult()->addValue( 'query', $property, $data );
 277         }
 278
 279         protected function appendDbReplLagInfo( $property, $includeAll ) {
 280                 global $wgShowHostnames;
 281                 $data = array();
 282                 if ( $includeAll ) {
 283                         if ( !$wgShowHostnames ) {
 284                                 $this->dieUsage( 'Cannot view all servers info unless $wgShowHostnames is true', 'includeAllDenied' );
 285                         }
 286
 287                         $lb = wfGetLB();
 288                         $lags = $lb->getLagTimes();
 289                         foreach ( $lags as $i => $lag ) {
 290                                 $data[] = array(
 291                                         'host' => $lb->getServerName( $i ),
 292                                         'lag' => $lag
 293                                 );
 294                         }
 295                 } else {
 296                         list( $host, $lag ) = wfGetLB()->getMaxLag();
 297                         $data[] = array(
 298                                 'host' => $wgShowHostnames ? $host : '',
 299                                 'lag' => intval( $lag )
 300                         );
 301                 }
 302
 303                 $result = $this->getResult();
 304                 $result->setIndexedTagName( $data, 'db' );
 305                 return $this->getResult()->addValue( 'query', $property, $data );
 306         }
 307
 308         protected function appendStatistics( $property ) {
 309                 global $wgDisableCounters;
 310                 $data = array();
 311                 $data['pages'] = intval( SiteStats::pages() );
 312                 $data['articles'] = intval( SiteStats::articles() );
 313                 if ( !$wgDisableCounters ) {
 314                         $data['views'] = intval( SiteStats::views() );
 315                 }
 316                 $data['edits'] = intval( SiteStats::edits() );
 317                 $data['images'] = intval( SiteStats::images() );
 318                 $data['users'] = intval( SiteStats::users() );
 319                 $data['activeusers'] = intval( SiteStats::activeUsers() );
 320                 $data['admins'] = intval( SiteStats::numberingroup( 'sysop' ) );
 321                 $data['jobs'] = intval( SiteStats::jobs() );
 322                 return $this->getResult()->addValue( 'query', $property, $data );
 323         }
 324
 325         protected function appendUserGroups( $property, $numberInGroup ) {
 326                 global $wgGroupPermissions, $wgAddGroups, $wgRemoveGroups, $wgGroupsAddToSelf, $wgGroupsRemoveFromSelf;
 327
 328                 $data = array();
 329                 foreach ( $wgGroupPermissions as $group => $permissions ) {
 330                         $arr = array(
 331                                 'name' => $group,
 332                                 'rights' => array_keys( $permissions, true ),
 333                         );
 334
 335                         if ( $numberInGroup ) {
 336                                 global $wgAutopromote;
 337
 338                                 if ( $group == 'user' ) {
 339                                         $arr['number'] = SiteStats::users();
 340
 341                                 // '*' and autopromote groups have no size
 342                                 } elseif ( $group !== '*' && !isset( $wgAutopromote[$group] ) ) {
 343                                         $arr['number'] = SiteStats::numberInGroup( $group );
 344                                 }
 345                         }
 346
 347                         $groupArr = array(
 348                                 'add' => $wgAddGroups,
 349                                 'remove' => $wgRemoveGroups,
 350                                 'add-self' => $wgGroupsAddToSelf,
 351                                 'remove-self' => $wgGroupsRemoveFromSelf
 352                         );
 353
 354                         foreach( $groupArr as $type => $rights ) {
 355                                 if( isset( $rights[$group] ) ) {
 356                                         $arr[$type] = $rights[$group];
 357                                         $this->getResult()->setIndexedTagName( $arr[$type], 'group' );
 358                                 }
 359                         }
 360
 361                         $this->getResult()->setIndexedTagName( $arr['rights'], 'permission' );
 362                         $data[] = $arr;
 363                 }
 364
 365                 $this->getResult()->setIndexedTagName( $data, 'group' );
 366                 return $this->getResult()->addValue( 'query', $property, $data );
 367         }
 368
 369         protected function appendFileExtensions( $property ) {
 370                 global $wgFileExtensions;
 371
 372                 $data = array();
 373                 foreach ( $wgFileExtensions as $ext ) {
 374                         $data[] = array( 'ext' => $ext );
 375                 }
 376                 $this->getResult()->setIndexedTagName( $data, 'fe' );
 377                 return $this->getResult()->addValue( 'query', $property, $data );
 378         }
 379
 380         protected function appendExtensions( $property ) {
 381                 global $wgExtensionCredits;
 382                 $data = array();
 383                 foreach ( $wgExtensionCredits as $type => $extensions ) {
 384                         foreach ( $extensions as $ext ) {
 385                                 $ret = array();
 386                                 $ret['type'] = $type;
 387                                 if ( isset( $ext['name'] ) ) {
 388                                         $ret['name'] = $ext['name'];
 389                                 }
 390                                 if ( isset( $ext['description'] ) ) {
 391                                         $ret['description'] = $ext['description'];
 392                                 }
 393                                 if ( isset( $ext['descriptionmsg'] ) ) {
 394                                         // Can be a string or array( key, param1, param2, ... )
 395                                         if ( is_array( $ext['descriptionmsg'] ) ) {
 396                                                 $ret['descriptionmsg'] = $ext['descriptionmsg'][0];
 397                                                 $ret['descriptionmsgparams'] = array_slice( $ext['descriptionmsg'], 1 );
 398                                                 $this->getResult()->setIndexedTagName( $ret['descriptionmsgparams'], 'param' );
 399                                         } else {
 400                                                 $ret['descriptionmsg'] = $ext['descriptionmsg'];
 401                                         }
 402                                 }
 403                                 if ( isset( $ext['author'] ) ) {
 404                                         $ret['author'] = is_array( $ext['author'] ) ?
 405                                                 implode( ', ', $ext['author' ] ) : $ext['author'];
 406                                 }
 407                                 if ( isset( $ext['url'] ) ) {
 408                                         $ret['url'] = $ext['url'];
 409                                 }
 410                                 if ( isset( $ext['version'] ) ) {
 411                                                 $ret['version'] = $ext['version'];
 412                                 } elseif ( isset( $ext['svn-revision'] ) &&
 413                                         preg_match( '/\$(?:Rev|LastChangedRevision|Revision): *(\d+)/',
 414                                                 $ext['svn-revision'], $m ) )
 415                                 {
 416                                                 $ret['version'] = 'r' . $m[1];
 417                                 }
 418                                 $data[] = $ret;
 419                         }
 420                 }
 421
 422                 $this->getResult()->setIndexedTagName( $data, 'ext' );
 423                 return $this->getResult()->addValue( 'query', $property, $data );
 424         }
 425
 426
 427         protected function appendRightsInfo( $property ) {
 428                 global $wgRightsPage, $wgRightsUrl, $wgRightsText;
 429                 $title = Title::newFromText( $wgRightsPage );
 430                 $url = $title ? $title->getFullURL() : $wgRightsUrl;
 431                 $text = $wgRightsText;
 432                 if ( !$text && $title ) {
 433                         $text = $title->getPrefixedText();
 434                 }
 435
 436                 $data = array(
 437                         'url' => $url ? $url : '',
 438                         'text' => $text ?  $text : ''
 439                 );
 440
 441                 return $this->getResult()->addValue( 'query', $property, $data );
 442         }
 443
 444         public function appendLanguages( $property ) {
 445                 $data = array();
 446                 foreach ( Language::getLanguageNames() as $code => $name ) {
 447                         $lang = array( 'code' => $code );
 448                         ApiResult::setContent( $lang, $name );
 449                         $data[] = $lang;
 450                 }
 451                 $this->getResult()->setIndexedTagName( $data, 'lang' );
 452                 return $this->getResult()->addValue( 'query', $property, $data );
 453         }
 454
 455         public function getCacheMode( $params ) {
 456                 return 'public';
 457         }
 458
 459         public function getAllowedParams() {
 460                 return array(
 461                         'prop' => array(
 462                                 ApiBase::PARAM_DFLT => 'general',
 463                                 ApiBase::PARAM_ISMULTI => true,
 464                                 ApiBase::PARAM_TYPE => array(
 465                                         'general',
 466                                         'namespaces',
 467                                         'namespacealiases',
 468                                         'specialpagealiases',
 469                                         'magicwords',
 470                                         'interwikimap',
 471                                         'dbrepllag',
 472                                         'statistics',
 473                                         'usergroups',
 474                                         'extensions',
 475                                         'fileextensions',
 476                                         'rightsinfo',
 477                                         'languages',
 478                                 )
 479                         ),
 480                         'filteriw' => array(
 481                                 ApiBase::PARAM_TYPE => array(
 482                                         'local',
 483                                         '!local',
 484                                 )
 485                         ),
 486                         'showalldb' => false,
 487                         'numberingroup' => false,
 488                 );
 489         }
 490
 491         public function getParamDescription() {
 492                 return array(
 493                         'prop' => array(
 494                                 'Which sysinfo properties to get:',
 495                                 ' general      - Overall system information',
 496                                 ' namespaces   - List of registered namespaces and their canonical names',
 497                                 ' namespacealiases - List of registered namespace aliases',
 498                                 ' specialpagealiases - List of special page aliases',
 499                                 ' magicwords   - List of magic words and their aliases',
 500                                 ' statistics   - Returns site statistics',
 501                                 ' interwikimap - Returns interwiki map (optionally filtered)',
 502                                 ' dbrepllag    - Returns database server with the highest replication lag',
 503                                 ' usergroups   - Returns user groups and the associated permissions',
 504                                 ' extensions   - Returns extensions installed on the wiki',
 505                                 ' fileextensions - Returns list of file extensions allowed to be uploaded',
 506                                 ' rightsinfo   - Returns wiki rights (license) information if available',
 507                                 ' languages    - Returns a list of languages MediaWiki supports',
 508                         ),
 509                         'filteriw' =>  'Return only local or only nonlocal entries of the interwiki map',
 510                         'showalldb' => 'List all database servers, not just the one lagging the most',
 511                         'numberingroup' => 'Lists the number of users in user groups',
 512                 );
 513         }
 514
 515         public function getDescription() {
 516                 return 'Return general information about the site';
 517         }
 518
 519         public function getPossibleErrors() {
 520                 return array_merge( parent::getPossibleErrors(), array(
 521                         array( 'code' => 'includeAllDenied', 'info' => 'Cannot view all servers info unless $wgShowHostnames is true' ),
 522                 ) );
 523         }
 524
 525         protected function getExamples() {
 526                 return array(
 527                         'api.php?action=query&meta=siteinfo&siprop=general|namespaces|namespacealiases|statistics',
 528                         'api.php?action=query&meta=siteinfo&siprop=interwikimap&sifilteriw=local',
 529                         'api.php?action=query&meta=siteinfo&siprop=dbrepllag&sishowalldb',
 530                 );
 531         }
 532
 533         public function getVersion() {
 534                 return __CLASS__ . ': $Id$';
 535         }
 536 }