includes/api/ApiQuerySiteinfo.php

   1 <?php
   2 /**
   3  *
   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                                 case 'skins':
  89                                         $fit = $this->appendSkins( $p );
  90                                         break;
  91                                 default:
  92                                         ApiBase::dieDebug( __METHOD__, "Unknown prop=$p" );
  93                         }
  94                         if ( !$fit ) {
  95                                 // Abuse siprop as a query-continue parameter
  96                                 // and set it to all unprocessed props
  97                                 $this->setContinueEnumParameter( 'prop', implode( '|',
  98                                                 array_diff( $params['prop'], $done ) ) );
  99                                 break;
 100                         }
 101                         $done[] = $p;
 102                 }
 103         }
 104
 105         protected function appendGeneralInfo( $property ) {
 106                 global $wgContLang;
 107
 108                 $data = array();
 109                 $mainPage = Title::newMainPage();
 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
 124                 // 'case-insensitive' option is reserved for future
 125                 $data['case'] = $GLOBALS['wgCapitalLinks'] ? 'first-letter' : 'case-sensitive';
 126
 127                 if ( isset( $GLOBALS['wgRightsCode'] ) ) {
 128                         $data['rightscode'] = $GLOBALS['wgRightsCode'];
 129                 }
 130                 $data['rights'] = $GLOBALS['wgRightsText'];
 131                 $data['lang'] = $GLOBALS['wgLanguageCode'];
 132                 if ( $wgContLang->isRTL() ) {
 133                         $data['rtl'] = '';
 134                 }
 135                 $data['fallback8bitEncoding'] = $wgContLang->fallback8bitEncoding();
 136
 137                 if ( wfReadOnly() ) {
 138                         $data['readonly'] = '';
 139                         $data['readonlyreason'] = wfReadOnlyReason();
 140                 }
 141                 if ( $GLOBALS['wgEnableWriteAPI'] ) {
 142                         $data['writeapi'] = '';
 143                 }
 144
 145                 $tz = $GLOBALS['wgLocaltimezone'];
 146                 $offset = $GLOBALS['wgLocalTZoffset'];
 147                 if ( is_null( $tz ) ) {
 148                         $tz = 'UTC';
 149                         $offset = 0;
 150                 } elseif ( is_null( $offset ) ) {
 151                         $offset = 0;
 152                 }
 153                 $data['timezone'] = $tz;
 154                 $data['timeoffset'] = intval( $offset );
 155                 $data['articlepath'] = $GLOBALS['wgArticlePath'];
 156                 $data['scriptpath'] = $GLOBALS['wgScriptPath'];
 157                 $data['script'] = $GLOBALS['wgScript'];
 158                 $data['variantarticlepath'] = $GLOBALS['wgVariantArticlePath'];
 159                 $data['server'] = $GLOBALS['wgServer'];
 160                 $data['wikiid'] = wfWikiID();
 161                 $data['time'] = wfTimestamp( TS_ISO_8601, time() );
 162
 163                 wfRunHooks( 'APIQuerySiteInfoGeneralInfo', array( $this, &$data ) );
 164
 165                 return $this->getResult()->addValue( 'query', $property, $data );
 166         }
 167
 168         protected function appendNamespaces( $property ) {
 169                 global $wgContLang;
 170                 $data = array();
 171                 foreach ( $wgContLang->getFormattedNamespaces() as $ns => $title ) {
 172                         $data[$ns] = array(
 173                                 'id' => intval( $ns ),
 174                                 'case' => MWNamespace::isCapitalized( $ns ) ? 'first-letter' : 'case-sensitive',
 175                         );
 176                         ApiResult::setContent( $data[$ns], $title );
 177                         $canonical = MWNamespace::getCanonicalName( $ns );
 178
 179                         if ( MWNamespace::hasSubpages( $ns ) ) {
 180                                 $data[$ns]['subpages'] = '';
 181                         }
 182
 183                         if ( $canonical ) {
 184                                 $data[$ns]['canonical'] = strtr( $canonical, '_', ' ' );
 185                         }
 186
 187                         if ( MWNamespace::isContent( $ns ) ) {
 188                                 $data[$ns]['content'] = '';
 189                         }
 190                 }
 191
 192                 $this->getResult()->setIndexedTagName( $data, 'ns' );
 193                 return $this->getResult()->addValue( 'query', $property, $data );
 194         }
 195
 196         protected function appendNamespaceAliases( $property ) {
 197                 global $wgNamespaceAliases, $wgContLang;
 198                 $aliases = array_merge( $wgNamespaceAliases, $wgContLang->getNamespaceAliases() );
 199                 $namespaces = $wgContLang->getNamespaces();
 200                 $data = array();
 201                 foreach ( $aliases as $title => $ns ) {
 202                         if ( $namespaces[$ns] == $title ) {
 203                                 // Don't list duplicates
 204                                 continue;
 205                         }
 206                         $item = array(
 207                                 'id' => intval( $ns )
 208                         );
 209                         ApiResult::setContent( $item, strtr( $title, '_', ' ' ) );
 210                         $data[] = $item;
 211                 }
 212
 213                 $this->getResult()->setIndexedTagName( $data, 'ns' );
 214                 return $this->getResult()->addValue( 'query', $property, $data );
 215         }
 216
 217         protected function appendSpecialPageAliases( $property ) {
 218                 global $wgContLang;
 219                 $data = array();
 220                 foreach ( $wgContLang->getSpecialPageAliases() as $specialpage => $aliases )
 221                 {
 222                         $arr = array( 'realname' => $specialpage, 'aliases' => $aliases );
 223                         $this->getResult()->setIndexedTagName( $arr['aliases'], 'alias' );
 224                         $data[] = $arr;
 225                 }
 226                 $this->getResult()->setIndexedTagName( $data, 'specialpage' );
 227                 return $this->getResult()->addValue( 'query', $property, $data );
 228         }
 229
 230         protected function appendMagicWords( $property ) {
 231                 global $wgContLang;
 232                 $data = array();
 233                 foreach ( $wgContLang->getMagicWords() as $magicword => $aliases ) {
 234                         $caseSensitive = array_shift( $aliases );
 235                         $arr = array( 'name' => $magicword, 'aliases' => $aliases );
 236                         if ( $caseSensitive ) {
 237                                 $arr['case-sensitive'] = '';
 238                         }
 239                         $this->getResult()->setIndexedTagName( $arr['aliases'], 'alias' );
 240                         $data[] = $arr;
 241                 }
 242                 $this->getResult()->setIndexedTagName( $data, 'magicword' );
 243                 return $this->getResult()->addValue( 'query', $property, $data );
 244         }
 245
 246         protected function appendInterwikiMap( $property, $filter ) {
 247                 $this->resetQueryParams();
 248                 $this->addTables( 'interwiki' );
 249                 $this->addFields( array( 'iw_prefix', 'iw_local', 'iw_url' ) );
 250
 251                 if ( $filter === 'local' ) {
 252                         $this->addWhere( 'iw_local = 1' );
 253                 } elseif ( $filter === '!local' ) {
 254                         $this->addWhere( 'iw_local = 0' );
 255                 } elseif ( $filter ) {
 256                         ApiBase::dieDebug( __METHOD__, "Unknown filter=$filter" );
 257                 }
 258
 259                 $this->addOption( 'ORDER BY', 'iw_prefix' );
 260
 261                 $res = $this->select( __METHOD__ );
 262
 263                 $data = array();
 264                 $langNames = Language::getLanguageNames();
 265                 foreach ( $res as $row ) {
 266                         $val = array();
 267                         $val['prefix'] = $row->iw_prefix;
 268                         if ( $row->iw_local == '1' ) {
 269                                 $val['local'] = '';
 270                         }
 271                         // $val['trans'] = intval( $row->iw_trans ); // should this be exposed?
 272                         if ( isset( $langNames[$row->iw_prefix] ) ) {
 273                                 $val['language'] = $langNames[$row->iw_prefix];
 274                         }
 275                         $val['url'] = $row->iw_url;
 276
 277                         $data[] = $val;
 278                 }
 279
 280                 $this->getResult()->setIndexedTagName( $data, 'iw' );
 281                 return $this->getResult()->addValue( 'query', $property, $data );
 282         }
 283
 284         protected function appendDbReplLagInfo( $property, $includeAll ) {
 285                 global $wgShowHostnames;
 286                 $data = array();
 287                 if ( $includeAll ) {
 288                         if ( !$wgShowHostnames ) {
 289                                 $this->dieUsage( 'Cannot view all servers info unless $wgShowHostnames is true', 'includeAllDenied' );
 290                         }
 291
 292                         $lb = wfGetLB();
 293                         $lags = $lb->getLagTimes();
 294                         foreach ( $lags as $i => $lag ) {
 295                                 $data[] = array(
 296                                         'host' => $lb->getServerName( $i ),
 297                                         'lag' => $lag
 298                                 );
 299                         }
 300                 } else {
 301                         list( $host, $lag ) = wfGetLB()->getMaxLag();
 302                         $data[] = array(
 303                                 'host' => $wgShowHostnames ? $host : '',
 304                                 'lag' => intval( $lag )
 305                         );
 306                 }
 307
 308                 $result = $this->getResult();
 309                 $result->setIndexedTagName( $data, 'db' );
 310                 return $this->getResult()->addValue( 'query', $property, $data );
 311         }
 312
 313         protected function appendStatistics( $property ) {
 314                 global $wgDisableCounters;
 315                 $data = array();
 316                 $data['pages'] = intval( SiteStats::pages() );
 317                 $data['articles'] = intval( SiteStats::articles() );
 318                 if ( !$wgDisableCounters ) {
 319                         $data['views'] = intval( SiteStats::views() );
 320                 }
 321                 $data['edits'] = intval( SiteStats::edits() );
 322                 $data['images'] = intval( SiteStats::images() );
 323                 $data['users'] = intval( SiteStats::users() );
 324                 $data['activeusers'] = intval( SiteStats::activeUsers() );
 325                 $data['admins'] = intval( SiteStats::numberingroup( 'sysop' ) );
 326                 $data['jobs'] = intval( SiteStats::jobs() );
 327                 return $this->getResult()->addValue( 'query', $property, $data );
 328         }
 329
 330         protected function appendUserGroups( $property, $numberInGroup ) {
 331                 global $wgGroupPermissions, $wgAddGroups, $wgRemoveGroups, $wgGroupsAddToSelf, $wgGroupsRemoveFromSelf;
 332
 333                 $data = array();
 334                 foreach ( $wgGroupPermissions as $group => $permissions ) {
 335                         $arr = array(
 336                                 'name' => $group,
 337                                 'rights' => array_keys( $permissions, true ),
 338                         );
 339
 340                         if ( $numberInGroup ) {
 341                                 global $wgAutopromote;
 342
 343                                 if ( $group == 'user' ) {
 344                                         $arr['number'] = SiteStats::users();
 345
 346                                 // '*' and autopromote groups have no size
 347                                 } elseif ( $group !== '*' && !isset( $wgAutopromote[$group] ) ) {
 348                                         $arr['number'] = SiteStats::numberInGroup( $group );
 349                                 }
 350                         }
 351
 352                         $groupArr = array(
 353                                 'add' => $wgAddGroups,
 354                                 'remove' => $wgRemoveGroups,
 355                                 'add-self' => $wgGroupsAddToSelf,
 356                                 'remove-self' => $wgGroupsRemoveFromSelf
 357                         );
 358
 359                         foreach ( $groupArr as $type => $rights ) {
 360                                 if ( isset( $rights[$group] ) ) {
 361                                         $arr[$type] = $rights[$group];
 362                                         $this->getResult()->setIndexedTagName( $arr[$type], 'group' );
 363                                 }
 364                         }
 365
 366                         $this->getResult()->setIndexedTagName( $arr['rights'], 'permission' );
 367                         $data[] = $arr;
 368                 }
 369
 370                 $this->getResult()->setIndexedTagName( $data, 'group' );
 371                 return $this->getResult()->addValue( 'query', $property, $data );
 372         }
 373
 374         protected function appendFileExtensions( $property ) {
 375                 global $wgFileExtensions;
 376
 377                 $data = array();
 378                 foreach ( $wgFileExtensions as $ext ) {
 379                         $data[] = array( 'ext' => $ext );
 380                 }
 381                 $this->getResult()->setIndexedTagName( $data, 'fe' );
 382                 return $this->getResult()->addValue( 'query', $property, $data );
 383         }
 384
 385         protected function appendExtensions( $property ) {
 386                 global $wgExtensionCredits;
 387                 $data = array();
 388                 foreach ( $wgExtensionCredits as $type => $extensions ) {
 389                         foreach ( $extensions as $ext ) {
 390                                 $ret = array();
 391                                 $ret['type'] = $type;
 392                                 if ( isset( $ext['name'] ) ) {
 393                                         $ret['name'] = $ext['name'];
 394                                 }
 395                                 if ( isset( $ext['description'] ) ) {
 396                                         $ret['description'] = $ext['description'];
 397                                 }
 398                                 if ( isset( $ext['descriptionmsg'] ) ) {
 399                                         // Can be a string or array( key, param1, param2, ... )
 400                                         if ( is_array( $ext['descriptionmsg'] ) ) {
 401                                                 $ret['descriptionmsg'] = $ext['descriptionmsg'][0];
 402                                                 $ret['descriptionmsgparams'] = array_slice( $ext['descriptionmsg'], 1 );
 403                                                 $this->getResult()->setIndexedTagName( $ret['descriptionmsgparams'], 'param' );
 404                                         } else {
 405                                                 $ret['descriptionmsg'] = $ext['descriptionmsg'];
 406                                         }
 407                                 }
 408                                 if ( isset( $ext['author'] ) ) {
 409                                         $ret['author'] = is_array( $ext['author'] ) ?
 410                                                 implode( ', ', $ext['author' ] ) : $ext['author'];
 411                                 }
 412                                 if ( isset( $ext['url'] ) ) {
 413                                         $ret['url'] = $ext['url'];
 414                                 }
 415                                 if ( isset( $ext['version'] ) ) {
 416                                                 $ret['version'] = $ext['version'];
 417                                 } elseif ( isset( $ext['svn-revision'] ) &&
 418                                         preg_match( '/\$(?:Rev|LastChangedRevision|Revision): *(\d+)/',
 419                                                 $ext['svn-revision'], $m ) )
 420                                 {
 421                                                 $ret['version'] = 'r' . $m[1];
 422                                 }
 423                                 $data[] = $ret;
 424                         }
 425                 }
 426
 427                 $this->getResult()->setIndexedTagName( $data, 'ext' );
 428                 return $this->getResult()->addValue( 'query', $property, $data );
 429         }
 430
 431
 432         protected function appendRightsInfo( $property ) {
 433                 global $wgRightsPage, $wgRightsUrl, $wgRightsText;
 434                 $title = Title::newFromText( $wgRightsPage );
 435                 $url = $title ? $title->getFullURL() : $wgRightsUrl;
 436                 $text = $wgRightsText;
 437                 if ( !$text && $title ) {
 438                         $text = $title->getPrefixedText();
 439                 }
 440
 441                 $data = array(
 442                         'url' => $url ? $url : '',
 443                         'text' => $text ?  $text : ''
 444                 );
 445
 446                 return $this->getResult()->addValue( 'query', $property, $data );
 447         }
 448
 449         public function appendLanguages( $property ) {
 450                 $data = array();
 451                 foreach ( Language::getLanguageNames() as $code => $name ) {
 452                         $lang = array( 'code' => $code );
 453                         ApiResult::setContent( $lang, $name );
 454                         $data[] = $lang;
 455                 }
 456                 $this->getResult()->setIndexedTagName( $data, 'lang' );
 457                 return $this->getResult()->addValue( 'query', $property, $data );
 458         }
 459
 460         public function appendSkins( $property ) {
 461                 $data = array();
 462                 foreach ( Skin::getSkinNames() as $name => $displayName ) {
 463                         $skin = array( 'code' => $name );
 464                         ApiResult::setContent( $skin, $displayName );
 465                         $data[] = $skin;
 466                 }
 467                 $this->getResult()->setIndexedTagName( $data, 'skin' );
 468                 return $this->getResult()->addValue( 'query', $property, $data );
 469         }
 470
 471         public function getCacheMode( $params ) {
 472                 return 'public';
 473         }
 474
 475         public function getAllowedParams() {
 476                 return array(
 477                         'prop' => array(
 478                                 ApiBase::PARAM_DFLT => 'general',
 479                                 ApiBase::PARAM_ISMULTI => true,
 480                                 ApiBase::PARAM_TYPE => array(
 481                                         'general',
 482                                         'namespaces',
 483                                         'namespacealiases',
 484                                         'specialpagealiases',
 485                                         'magicwords',
 486                                         'interwikimap',
 487                                         'dbrepllag',
 488                                         'statistics',
 489                                         'usergroups',
 490                                         'extensions',
 491                                         'fileextensions',
 492                                         'rightsinfo',
 493                                         'languages',
 494                                         'skins',
 495                                 )
 496                         ),
 497                         'filteriw' => array(
 498                                 ApiBase::PARAM_TYPE => array(
 499                                         'local',
 500                                         '!local',
 501                                 )
 502                         ),
 503                         'showalldb' => false,
 504                         'numberingroup' => false,
 505                 );
 506         }
 507
 508         public function getParamDescription() {
 509                 return array(
 510                         'prop' => array(
 511                                 'Which sysinfo properties to get:',
 512                                 ' general               - Overall system information',
 513                                 ' namespaces            - List of registered namespaces and their canonical names',
 514                                 ' namespacealiases      - List of registered namespace aliases',
 515                                 ' specialpagealiases    - List of special page aliases',
 516                                 ' magicwords            - List of magic words and their aliases',
 517                                 ' statistics            - Returns site statistics',
 518                                 ' interwikimap          - Returns interwiki map (optionally filtered)',
 519                                 ' dbrepllag             - Returns database server with the highest replication lag',
 520                                 ' usergroups            - Returns user groups and the associated permissions',
 521                                 ' extensions            - Returns extensions installed on the wiki',
 522                                 ' fileextensions        - Returns list of file extensions allowed to be uploaded',
 523                                 ' rightsinfo            - Returns wiki rights (license) information if available',
 524                                 ' languages             - Returns a list of languages MediaWiki supports',
 525                                 ' skins                 - Returns a list of all enabled skins',
 526                         ),
 527                         'filteriw' =>  'Return only local or only nonlocal entries of the interwiki map',
 528                         'showalldb' => 'List all database servers, not just the one lagging the most',
 529                         'numberingroup' => 'Lists the number of users in user groups',
 530                 );
 531         }
 532
 533         public function getDescription() {
 534                 return 'Return general information about the site';
 535         }
 536
 537         public function getPossibleErrors() {
 538                 return array_merge( parent::getPossibleErrors(), array(
 539                         array( 'code' => 'includeAllDenied', 'info' => 'Cannot view all servers info unless $wgShowHostnames is true' ),
 540                 ) );
 541         }
 542
 543         protected function getExamples() {
 544                 return array(
 545                         'api.php?action=query&meta=siteinfo&siprop=general|namespaces|namespacealiases|statistics',
 546                         'api.php?action=query&meta=siteinfo&siprop=interwikimap&sifilteriw=local',
 547                         'api.php?action=query&meta=siteinfo&siprop=dbrepllag&sishowalldb=',
 548                 );
 549         }
 550
 551         public function getVersion() {
 552                 return __CLASS__ . ': $Id$';
 553         }
 554 }