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  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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;
 103
 104                 $data = array();
 105                 $mainPage = Title::newMainPage();
 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'] = $wgContLang->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 $wgContLang;
 213                 $data = array();
 214                 foreach ( $wgContLang->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                 $res = $this->select( __METHOD__ );
 256
 257                 $data = array();
 258                 $langNames = Language::getLanguageNames();
 259                 foreach ( $res as $row ) {
 260                         $val = array();
 261                         $val['prefix'] = $row->iw_prefix;
 262                         if ( $row->iw_local == '1' ) {
 263                                 $val['local'] = '';
 264                         }
 265                         // $val['trans'] = intval( $row->iw_trans ); // should this be exposed?
 266                         if ( isset( $langNames[$row->iw_prefix] ) ) {
 267                                 $val['language'] = $langNames[$row->iw_prefix];
 268                         }
 269                         $val['url'] = $row->iw_url;
 270
 271                         $data[] = $val;
 272                 }
 273
 274                 $this->getResult()->setIndexedTagName( $data, 'iw' );
 275                 return $this->getResult()->addValue( 'query', $property, $data );
 276         }
 277
 278         protected function appendDbReplLagInfo( $property, $includeAll ) {
 279                 global $wgShowHostnames;
 280                 $data = array();
 281                 if ( $includeAll ) {
 282                         if ( !$wgShowHostnames ) {
 283                                 $this->dieUsage( 'Cannot view all servers info unless $wgShowHostnames is true', 'includeAllDenied' );
 284                         }
 285
 286                         $lb = wfGetLB();
 287                         $lags = $lb->getLagTimes();
 288                         foreach ( $lags as $i => $lag ) {
 289                                 $data[] = array(
 290                                         'host' => $lb->getServerName( $i ),
 291                                         'lag' => $lag
 292                                 );
 293                         }
 294                 } else {
 295                         list( $host, $lag ) = wfGetLB()->getMaxLag();
 296                         $data[] = array(
 297                                 'host' => $wgShowHostnames ? $host : '',
 298                                 'lag' => intval( $lag )
 299                         );
 300                 }
 301
 302                 $result = $this->getResult();
 303                 $result->setIndexedTagName( $data, 'db' );
 304                 return $this->getResult()->addValue( 'query', $property, $data );
 305         }
 306
 307         protected function appendStatistics( $property ) {
 308                 global $wgDisableCounters;
 309                 $data = array();
 310                 $data['pages'] = intval( SiteStats::pages() );
 311                 $data['articles'] = intval( SiteStats::articles() );
 312                 if ( !$wgDisableCounters ) {
 313                         $data['views'] = intval( SiteStats::views() );
 314                 }
 315                 $data['edits'] = intval( SiteStats::edits() );
 316                 $data['images'] = intval( SiteStats::images() );
 317                 $data['users'] = intval( SiteStats::users() );
 318                 $data['activeusers'] = intval( SiteStats::activeUsers() );
 319                 $data['admins'] = intval( SiteStats::numberingroup( 'sysop' ) );
 320                 $data['jobs'] = intval( SiteStats::jobs() );
 321                 return $this->getResult()->addValue( 'query', $property, $data );
 322         }
 323
 324         protected function appendUserGroups( $property, $numberInGroup ) {
 325                 global $wgGroupPermissions, $wgAddGroups, $wgRemoveGroups, $wgGroupsAddToSelf, $wgGroupsRemoveFromSelf;
 326
 327                 $data = array();
 328                 foreach ( $wgGroupPermissions as $group => $permissions ) {
 329                         $arr = array(
 330                                 'name' => $group,
 331                                 'rights' => array_keys( $permissions, true ),
 332                         );
 333                         if ( $numberInGroup ) {
 334                                 $arr['number'] = SiteStats::numberInGroup( $group );
 335                         }
 336
 337                         $groupArr = array(
 338                                 'add' => $wgAddGroups,
 339                                 'remove' => $wgRemoveGroups,
 340                                 'add-self' => $wgGroupsAddToSelf,
 341                                 'remove-self' => $wgGroupsRemoveFromSelf
 342                         );
 343
 344                         foreach( $groupArr as $type => $rights ) {
 345                                 if( isset( $rights[$group] ) ) {
 346                                         $arr[$type] = $rights[$group];
 347                                         $this->getResult()->setIndexedTagName( $arr[$type], 'group' );
 348                                 }
 349                         }
 350
 351                         $this->getResult()->setIndexedTagName( $arr['rights'], 'permission' );
 352                         $data[] = $arr;
 353                 }
 354
 355                 $this->getResult()->setIndexedTagName( $data, 'group' );
 356                 return $this->getResult()->addValue( 'query', $property, $data );
 357         }
 358
 359         protected function appendFileExtensions( $property ) {
 360                 global $wgFileExtensions;
 361
 362                 $data = array();
 363                 foreach ( $wgFileExtensions as $ext ) {
 364                         $data[] = array( 'ext' => $ext );
 365                 }
 366                 $this->getResult()->setIndexedTagName( $data, 'fe' );
 367                 return $this->getResult()->addValue( 'query', $property, $data );
 368         }
 369
 370         protected function appendExtensions( $property ) {
 371                 global $wgExtensionCredits;
 372                 $data = array();
 373                 foreach ( $wgExtensionCredits as $type => $extensions ) {
 374                         foreach ( $extensions as $ext ) {
 375                                 $ret = array();
 376                                 $ret['type'] = $type;
 377                                 if ( isset( $ext['name'] ) ) {
 378                                         $ret['name'] = $ext['name'];
 379                                 }
 380                                 if ( isset( $ext['description'] ) ) {
 381                                         $ret['description'] = $ext['description'];
 382                                 }
 383                                 if ( isset( $ext['descriptionmsg'] ) ) {
 384                                         // Can be a string or array( key, param1, param2, ... )
 385                                         if ( is_array( $ext['descriptionmsg'] ) ) {
 386                                                 $ret['descriptionmsg'] = $ext['descriptionmsg'][0];
 387                                                 $ret['descriptionmsgparams'] = array_slice( $ext['descriptionmsg'], 1 );
 388                                                 $this->getResult()->setIndexedTagName( $ret['descriptionmsgparams'], 'param' );
 389                                         } else {
 390                                                 $ret['descriptionmsg'] = $ext['descriptionmsg'];
 391                                         }
 392                                 }
 393                                 if ( isset( $ext['author'] ) ) {
 394                                         $ret['author'] = is_array( $ext['author'] ) ?
 395                                                 implode( ', ', $ext['author' ] ) : $ext['author'];
 396                                 }
 397                                 if ( isset( $ext['url'] ) ) {
 398                                         $ret['url'] = $ext['url'];
 399                                 }
 400                                 if ( isset( $ext['version'] ) ) {
 401                                                 $ret['version'] = $ext['version'];
 402                                 } elseif ( isset( $ext['svn-revision'] ) &&
 403                                         preg_match( '/\$(?:Rev|LastChangedRevision|Revision): *(\d+)/',
 404                                                 $ext['svn-revision'], $m ) )
 405                                 {
 406                                                 $ret['version'] = 'r' . $m[1];
 407                                 }
 408                                 $data[] = $ret;
 409                         }
 410                 }
 411
 412                 $this->getResult()->setIndexedTagName( $data, 'ext' );
 413                 return $this->getResult()->addValue( 'query', $property, $data );
 414         }
 415
 416
 417         protected function appendRightsInfo( $property ) {
 418                 global $wgRightsPage, $wgRightsUrl, $wgRightsText;
 419                 $title = Title::newFromText( $wgRightsPage );
 420                 $url = $title ? $title->getFullURL() : $wgRightsUrl;
 421                 $text = $wgRightsText;
 422                 if ( !$text && $title ) {
 423                         $text = $title->getPrefixedText();
 424                 }
 425
 426                 $data = array(
 427                         'url' => $url ? $url : '',
 428                         'text' => $text ?  $text : ''
 429                 );
 430
 431                 return $this->getResult()->addValue( 'query', $property, $data );
 432         }
 433
 434         public function appendLanguages( $property ) {
 435                 $data = array();
 436                 foreach ( Language::getLanguageNames() as $code => $name ) {
 437                         $lang = array( 'code' => $code );
 438                         ApiResult::setContent( $lang, $name );
 439                         $data[] = $lang;
 440                 }
 441                 $this->getResult()->setIndexedTagName( $data, 'lang' );
 442                 return $this->getResult()->addValue( 'query', $property, $data );
 443         }
 444
 445         public function getCacheMode( $params ) {
 446                 return 'public';
 447         }
 448
 449         public function getAllowedParams() {
 450                 return array(
 451                         'prop' => array(
 452                                 ApiBase::PARAM_DFLT => 'general',
 453                                 ApiBase::PARAM_ISMULTI => true,
 454                                 ApiBase::PARAM_TYPE => array(
 455                                         'general',
 456                                         'namespaces',
 457                                         'namespacealiases',
 458                                         'specialpagealiases',
 459                                         'magicwords',
 460                                         'interwikimap',
 461                                         'dbrepllag',
 462                                         'statistics',
 463                                         'usergroups',
 464                                         'extensions',
 465                                         'fileextensions',
 466                                         'rightsinfo',
 467                                         'languages',
 468                                 )
 469                         ),
 470                         'filteriw' => array(
 471                                 ApiBase::PARAM_TYPE => array(
 472                                         'local',
 473                                         '!local',
 474                                 )
 475                         ),
 476                         'showalldb' => false,
 477                         'numberingroup' => false,
 478                 );
 479         }
 480
 481         public function getParamDescription() {
 482                 return array(
 483                         'prop' => array(
 484                                 'Which sysinfo properties to get:',
 485                                 ' general      - Overall system information',
 486                                 ' namespaces   - List of registered namespaces and their canonical names',
 487                                 ' namespacealiases - List of registered namespace aliases',
 488                                 ' specialpagealiases - List of special page aliases',
 489                                 ' magicwords   - List of magic words and their aliases',
 490                                 ' statistics   - Returns site statistics',
 491                                 ' interwikimap - Returns interwiki map (optionally filtered)',
 492                                 ' dbrepllag    - Returns database server with the highest replication lag',
 493                                 ' usergroups   - Returns user groups and the associated permissions',
 494                                 ' extensions   - Returns extensions installed on the wiki',
 495                                 ' fileextensions - Returns list of file extensions allowed to be uploaded',
 496                                 ' rightsinfo   - Returns wiki rights (license) information if available',
 497                                 ' languages    - Returns a list of languages MediaWiki supports',
 498                         ),
 499                         'filteriw' =>  'Return only local or only nonlocal entries of the interwiki map',
 500                         'showalldb' => 'List all database servers, not just the one lagging the most',
 501                         'numberingroup' => 'Lists the number of users in user groups',
 502                 );
 503         }
 504
 505         public function getDescription() {
 506                 return 'Return general information about the site';
 507         }
 508
 509         public function getPossibleErrors() {
 510                 return array_merge( parent::getPossibleErrors(), array(
 511                         array( 'code' => 'includeAllDenied', 'info' => 'Cannot view all servers info unless $wgShowHostnames is true' ),
 512                 ) );
 513         }
 514
 515         protected function getExamples() {
 516                 return array(
 517                         'api.php?action=query&meta=siteinfo&siprop=general|namespaces|namespacealiases|statistics',
 518                         'api.php?action=query&meta=siteinfo&siprop=interwikimap&sifilteriw=local',
 519                         'api.php?action=query&meta=siteinfo&siprop=dbrepllag&sishowalldb',
 520                 );
 521         }
 522
 523         public function getVersion() {
 524                 return __CLASS__ . ': $Id$';
 525         }
 526 }