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 /**
  28  * A query action to return meta information about the wiki site.
  29  *
  30  * @ingroup API
  31  */
  32 class ApiQuerySiteinfo extends ApiQueryBase {
  33
  34         public function __construct( ApiQuery $query, $moduleName ) {
  35                 parent::__construct( $query, $moduleName, 'si' );
  36         }
  37
  38         public function execute() {
  39                 $params = $this->extractRequestParams();
  40                 $done = array();
  41                 $fit = false;
  42                 foreach ( $params['prop'] as $p ) {
  43                         switch ( $p ) {
  44                                 case 'general':
  45                                         $fit = $this->appendGeneralInfo( $p );
  46                                         break;
  47                                 case 'namespaces':
  48                                         $fit = $this->appendNamespaces( $p );
  49                                         break;
  50                                 case 'namespacealiases':
  51                                         $fit = $this->appendNamespaceAliases( $p );
  52                                         break;
  53                                 case 'specialpagealiases':
  54                                         $fit = $this->appendSpecialPageAliases( $p );
  55                                         break;
  56                                 case 'magicwords':
  57                                         $fit = $this->appendMagicWords( $p );
  58                                         break;
  59                                 case 'interwikimap':
  60                                         $filteriw = isset( $params['filteriw'] ) ? $params['filteriw'] : false;
  61                                         $fit = $this->appendInterwikiMap( $p, $filteriw );
  62                                         break;
  63                                 case 'dbrepllag':
  64                                         $fit = $this->appendDbReplLagInfo( $p, $params['showalldb'] );
  65                                         break;
  66                                 case 'statistics':
  67                                         $fit = $this->appendStatistics( $p );
  68                                         break;
  69                                 case 'usergroups':
  70                                         $fit = $this->appendUserGroups( $p, $params['numberingroup'] );
  71                                         break;
  72                                 case 'libraries':
  73                                         $fit = $this->appendInstalledLibraries( $p );
  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 'restrictions':
  85                                         $fit = $this->appendRestrictions( $p );
  86                                         break;
  87                                 case 'languages':
  88                                         $fit = $this->appendLanguages( $p );
  89                                         break;
  90                                 case 'skins':
  91                                         $fit = $this->appendSkins( $p );
  92                                         break;
  93                                 case 'extensiontags':
  94                                         $fit = $this->appendExtensionTags( $p );
  95                                         break;
  96                                 case 'functionhooks':
  97                                         $fit = $this->appendFunctionHooks( $p );
  98                                         break;
  99                                 case 'showhooks':
 100                                         $fit = $this->appendSubscribedHooks( $p );
 101                                         break;
 102                                 case 'variables':
 103                                         $fit = $this->appendVariables( $p );
 104                                         break;
 105                                 case 'protocols':
 106                                         $fit = $this->appendProtocols( $p );
 107                                         break;
 108                                 case 'defaultoptions':
 109                                         $fit = $this->appendDefaultOptions( $p );
 110                                         break;
 111                                 default:
 112                                         ApiBase::dieDebug( __METHOD__, "Unknown prop=$p" );
 113                         }
 114                         if ( !$fit ) {
 115                                 // Abuse siprop as a query-continue parameter
 116                                 // and set it to all unprocessed props
 117                                 $this->setContinueEnumParameter( 'prop', implode( '|',
 118                                         array_diff( $params['prop'], $done ) ) );
 119                                 break;
 120                         }
 121                         $done[] = $p;
 122                 }
 123         }
 124
 125         protected function appendGeneralInfo( $property ) {
 126                 global $wgContLang;
 127
 128                 $config = $this->getConfig();
 129
 130                 $data = array();
 131                 $mainPage = Title::newMainPage();
 132                 $data['mainpage'] = $mainPage->getPrefixedText();
 133                 $data['base'] = wfExpandUrl( $mainPage->getFullURL(), PROTO_CURRENT );
 134                 $data['sitename'] = $config->get( 'Sitename' );
 135
 136                 // wgLogo can either be a relative or an absolute path
 137                 // make sure we always return an absolute path
 138                 $data['logo'] = wfExpandUrl( $config->get( 'Logo' ), PROTO_RELATIVE );
 139
 140                 $data['generator'] = "MediaWiki {$config->get( 'Version' )}";
 141
 142                 $data['phpversion'] = PHP_VERSION;
 143                 $data['phpsapi'] = PHP_SAPI;
 144                 if ( defined( 'HHVM_VERSION' ) ) {
 145                         $data['hhvmversion'] = HHVM_VERSION;
 146                 }
 147                 $data['dbtype'] = $config->get( 'DBtype' );
 148                 $data['dbversion'] = $this->getDB()->getServerVersion();
 149
 150                 $allowFrom = array( '' );
 151                 $allowException = true;
 152                 if ( !$config->get( 'AllowExternalImages' ) ) {
 153                         $data['imagewhitelistenabled'] = (bool)$config->get( 'EnableImageWhitelist' );
 154                         $allowFrom = $config->get( 'AllowExternalImagesFrom' );
 155                         $allowException = !empty( $allowFrom );
 156                 }
 157                 if ( $allowException ) {
 158                         $data['externalimages'] = (array)$allowFrom;
 159                         ApiResult::setIndexedTagName( $data['externalimages'], 'prefix' );
 160                 }
 161
 162                 $data['langconversion'] = !$config->get( 'DisableLangConversion' );
 163                 $data['titleconversion'] = !$config->get( 'DisableTitleConversion' );
 164
 165                 if ( $wgContLang->linkPrefixExtension() ) {
 166                         $linkPrefixCharset = $wgContLang->linkPrefixCharset();
 167                         $data['linkprefixcharset'] = $linkPrefixCharset;
 168                         // For backwards compatibility
 169                         $data['linkprefix'] = "/^((?>.*[^$linkPrefixCharset]|))(.+)$/sDu";
 170                 } else {
 171                         $data['linkprefixcharset'] = '';
 172                         $data['linkprefix'] = '';
 173                 }
 174
 175                 $linktrail = $wgContLang->linkTrail();
 176                 $data['linktrail'] = $linktrail ?: '';
 177
 178                 $data['legaltitlechars'] = Title::legalChars();
 179                 $data['invalidusernamechars'] = $config->get( 'InvalidUsernameCharacters' );
 180
 181                 global $IP;
 182                 $git = SpecialVersion::getGitHeadSha1( $IP );
 183                 if ( $git ) {
 184                         $data['git-hash'] = $git;
 185                         $data['git-branch'] =
 186                                 SpecialVersion::getGitCurrentBranch( $GLOBALS['IP'] );
 187                 }
 188
 189                 // 'case-insensitive' option is reserved for future
 190                 $data['case'] = $config->get( 'CapitalLinks' ) ? 'first-letter' : 'case-sensitive';
 191                 $data['lang'] = $config->get( 'LanguageCode' );
 192
 193                 $fallbacks = array();
 194                 foreach ( $wgContLang->getFallbackLanguages() as $code ) {
 195                         $fallbacks[] = array( 'code' => $code );
 196                 }
 197                 $data['fallback'] = $fallbacks;
 198                 ApiResult::setIndexedTagName( $data['fallback'], 'lang' );
 199
 200                 if ( $wgContLang->hasVariants() ) {
 201                         $variants = array();
 202                         foreach ( $wgContLang->getVariants() as $code ) {
 203                                 $variants[] = array(
 204                                         'code' => $code,
 205                                         'name' => $wgContLang->getVariantname( $code ),
 206                                 );
 207                         }
 208                         $data['variants'] = $variants;
 209                         ApiResult::setIndexedTagName( $data['variants'], 'lang' );
 210                 }
 211
 212                 $data['rtl'] = $wgContLang->isRTL();
 213                 $data['fallback8bitEncoding'] = $wgContLang->fallback8bitEncoding();
 214
 215                 $data['readonly'] = wfReadOnly();
 216                 if ( $data['readonly'] ) {
 217                         $data['readonlyreason'] = wfReadOnlyReason();
 218                 }
 219                 $data['writeapi'] = (bool)$config->get( 'EnableWriteAPI' );
 220
 221                 $tz = $config->get( 'Localtimezone' );
 222                 $offset = $config->get( 'LocalTZoffset' );
 223                 if ( is_null( $tz ) ) {
 224                         $tz = 'UTC';
 225                         $offset = 0;
 226                 } elseif ( is_null( $offset ) ) {
 227                         $offset = 0;
 228                 }
 229                 $data['timezone'] = $tz;
 230                 $data['timeoffset'] = intval( $offset );
 231                 $data['articlepath'] = $config->get( 'ArticlePath' );
 232                 $data['scriptpath'] = $config->get( 'ScriptPath' );
 233                 $data['script'] = $config->get( 'Script' );
 234                 $data['variantarticlepath'] = $config->get( 'VariantArticlePath' );
 235                 $data[ApiResult::META_BC_BOOLS][] = 'variantarticlepath';
 236                 $data['server'] = $config->get( 'Server' );
 237                 $data['servername'] = $config->get( 'ServerName' );
 238                 $data['wikiid'] = wfWikiID();
 239                 $data['time'] = wfTimestamp( TS_ISO_8601, time() );
 240
 241                 $data['misermode'] = (bool)$config->get( 'MiserMode' );
 242
 243                 $data['uploadsenabled'] = UploadBase::isEnabled();
 244                 $data['maxuploadsize'] = UploadBase::getMaxUploadSize();
 245                 $data['minuploadchunksize'] = (int)$this->getConfig()->get( 'MinUploadChunkSize' );
 246
 247                 $data['thumblimits'] = $config->get( 'ThumbLimits' );
 248                 ApiResult::setArrayType( $data['thumblimits'], 'BCassoc' );
 249                 ApiResult::setIndexedTagName( $data['thumblimits'], 'limit' );
 250                 $data['imagelimits'] = array();
 251                 ApiResult::setArrayType( $data['imagelimits'], 'BCassoc' );
 252                 ApiResult::setIndexedTagName( $data['imagelimits'], 'limit' );
 253                 foreach ( $config->get( 'ImageLimits' ) as $k => $limit ) {
 254                         $data['imagelimits'][$k] = array( 'width' => $limit[0], 'height' => $limit[1] );
 255                 }
 256
 257                 $favicon = $config->get( 'Favicon' );
 258                 if ( !empty( $favicon ) ) {
 259                         // wgFavicon can either be a relative or an absolute path
 260                         // make sure we always return an absolute path
 261                         $data['favicon'] = wfExpandUrl( $favicon, PROTO_RELATIVE );
 262                 }
 263
 264                 $data['centralidlookupprovider'] = $this->getConfig()->get( 'CentralIdLookupProvider' );
 265                 $providerIds = array_keys( $this->getConfig()->get( 'CentralIdLookupProviders' ) );
 266                 $data['allcentralidlookupproviders'] = $providerIds;
 267
 268                 Hooks::run( 'APIQuerySiteInfoGeneralInfo', array( $this, &$data ) );
 269
 270                 return $this->getResult()->addValue( 'query', $property, $data );
 271         }
 272
 273         protected function appendNamespaces( $property ) {
 274                 global $wgContLang;
 275                 $data = array(
 276                         ApiResult::META_TYPE => 'assoc',
 277                 );
 278                 foreach ( $wgContLang->getFormattedNamespaces() as $ns => $title ) {
 279                         $data[$ns] = array(
 280                                 'id' => intval( $ns ),
 281                                 'case' => MWNamespace::isCapitalized( $ns ) ? 'first-letter' : 'case-sensitive',
 282                         );
 283                         ApiResult::setContentValue( $data[$ns], 'name', $title );
 284                         $canonical = MWNamespace::getCanonicalName( $ns );
 285
 286                         $data[$ns]['subpages'] = MWNamespace::hasSubpages( $ns );
 287
 288                         if ( $canonical ) {
 289                                 $data[$ns]['canonical'] = strtr( $canonical, '_', ' ' );
 290                         }
 291
 292                         $data[$ns]['content'] = MWNamespace::isContent( $ns );
 293                         $data[$ns]['nonincludable'] = MWNamespace::isNonincludable( $ns );
 294
 295                         $contentmodel = MWNamespace::getNamespaceContentModel( $ns );
 296                         if ( $contentmodel ) {
 297                                 $data[$ns]['defaultcontentmodel'] = $contentmodel;
 298                         }
 299                 }
 300
 301                 ApiResult::setArrayType( $data, 'assoc' );
 302                 ApiResult::setIndexedTagName( $data, 'ns' );
 303
 304                 return $this->getResult()->addValue( 'query', $property, $data );
 305         }
 306
 307         protected function appendNamespaceAliases( $property ) {
 308                 global $wgContLang;
 309                 $aliases = array_merge( $this->getConfig()->get( 'NamespaceAliases' ),
 310                         $wgContLang->getNamespaceAliases() );
 311                 $namespaces = $wgContLang->getNamespaces();
 312                 $data = array();
 313                 foreach ( $aliases as $title => $ns ) {
 314                         if ( $namespaces[$ns] == $title ) {
 315                                 // Don't list duplicates
 316                                 continue;
 317                         }
 318                         $item = array(
 319                                 'id' => intval( $ns )
 320                         );
 321                         ApiResult::setContentValue( $item, 'alias', strtr( $title, '_', ' ' ) );
 322                         $data[] = $item;
 323                 }
 324
 325                 sort( $data );
 326
 327                 ApiResult::setIndexedTagName( $data, 'ns' );
 328
 329                 return $this->getResult()->addValue( 'query', $property, $data );
 330         }
 331
 332         protected function appendSpecialPageAliases( $property ) {
 333                 global $wgContLang;
 334                 $data = array();
 335                 $aliases = $wgContLang->getSpecialPageAliases();
 336                 foreach ( SpecialPageFactory::getNames() as $specialpage ) {
 337                         if ( isset( $aliases[$specialpage] ) ) {
 338                                 $arr = array( 'realname' => $specialpage, 'aliases' => $aliases[$specialpage] );
 339                                 ApiResult::setIndexedTagName( $arr['aliases'], 'alias' );
 340                                 $data[] = $arr;
 341                         }
 342                 }
 343                 ApiResult::setIndexedTagName( $data, 'specialpage' );
 344
 345                 return $this->getResult()->addValue( 'query', $property, $data );
 346         }
 347
 348         protected function appendMagicWords( $property ) {
 349                 global $wgContLang;
 350                 $data = array();
 351                 foreach ( $wgContLang->getMagicWords() as $magicword => $aliases ) {
 352                         $caseSensitive = array_shift( $aliases );
 353                         $arr = array( 'name' => $magicword, 'aliases' => $aliases );
 354                         $arr['case-sensitive'] = (bool)$caseSensitive;
 355                         ApiResult::setIndexedTagName( $arr['aliases'], 'alias' );
 356                         $data[] = $arr;
 357                 }
 358                 ApiResult::setIndexedTagName( $data, 'magicword' );
 359
 360                 return $this->getResult()->addValue( 'query', $property, $data );
 361         }
 362
 363         protected function appendInterwikiMap( $property, $filter ) {
 364                 $local = null;
 365                 if ( $filter === 'local' ) {
 366                         $local = 1;
 367                 } elseif ( $filter === '!local' ) {
 368                         $local = 0;
 369                 } elseif ( $filter ) {
 370                         ApiBase::dieDebug( __METHOD__, "Unknown filter=$filter" );
 371                 }
 372
 373                 $params = $this->extractRequestParams();
 374                 $langCode = isset( $params['inlanguagecode'] ) ? $params['inlanguagecode'] : '';
 375                 $langNames = Language::fetchLanguageNames( $langCode );
 376
 377                 $getPrefixes = Interwiki::getAllPrefixes( $local );
 378                 $extraLangPrefixes = $this->getConfig()->get( 'ExtraInterlanguageLinkPrefixes' );
 379                 $localInterwikis = $this->getConfig()->get( 'LocalInterwikis' );
 380                 $data = array();
 381
 382                 foreach ( $getPrefixes as $row ) {
 383                         $prefix = $row['iw_prefix'];
 384                         $val = array();
 385                         $val['prefix'] = $prefix;
 386                         if ( isset( $row['iw_local'] ) && $row['iw_local'] == '1' ) {
 387                                 $val['local'] = true;
 388                         }
 389                         if ( isset( $row['iw_trans'] ) && $row['iw_trans'] == '1' ) {
 390                                 $val['trans'] = true;
 391                         }
 392
 393                         if ( isset( $langNames[$prefix] ) ) {
 394                                 $val['language'] = $langNames[$prefix];
 395                         }
 396                         if ( in_array( $prefix, $localInterwikis ) ) {
 397                                 $val['localinterwiki'] = true;
 398                         }
 399                         if ( in_array( $prefix, $extraLangPrefixes ) ) {
 400                                 $val['extralanglink'] = true;
 401
 402                                 $linktext = wfMessage( "interlanguage-link-$prefix" );
 403                                 if ( !$linktext->isDisabled() ) {
 404                                         $val['linktext'] = $linktext->text();
 405                                 }
 406
 407                                 $sitename = wfMessage( "interlanguage-link-sitename-$prefix" );
 408                                 if ( !$sitename->isDisabled() ) {
 409                                         $val['sitename'] = $sitename->text();
 410                                 }
 411                         }
 412
 413                         $val['url'] = wfExpandUrl( $row['iw_url'], PROTO_CURRENT );
 414                         $val['protorel'] = substr( $row['iw_url'], 0, 2 ) == '//';
 415                         if ( isset( $row['iw_wikiid'] ) && $row['iw_wikiid'] !== '' ) {
 416                                 $val['wikiid'] = $row['iw_wikiid'];
 417                         }
 418                         if ( isset( $row['iw_api'] ) && $row['iw_api'] !== '' ) {
 419                                 $val['api'] = $row['iw_api'];
 420                         }
 421
 422                         $data[] = $val;
 423                 }
 424
 425                 ApiResult::setIndexedTagName( $data, 'iw' );
 426
 427                 return $this->getResult()->addValue( 'query', $property, $data );
 428         }
 429
 430         protected function appendDbReplLagInfo( $property, $includeAll ) {
 431                 $data = array();
 432                 $lb = wfGetLB();
 433                 $showHostnames = $this->getConfig()->get( 'ShowHostnames' );
 434                 if ( $includeAll ) {
 435                         if ( !$showHostnames ) {
 436                                 $this->dieUsage(
 437                                         'Cannot view all servers info unless $wgShowHostnames is true',
 438                                         'includeAllDenied'
 439                                 );
 440                         }
 441
 442                         $lags = $lb->getLagTimes();
 443                         foreach ( $lags as $i => $lag ) {
 444                                 $data[] = array(
 445                                         'host' => $lb->getServerName( $i ),
 446                                         'lag' => $lag
 447                                 );
 448                         }
 449                 } else {
 450                         list( , $lag, $index ) = $lb->getMaxLag();
 451                         $data[] = array(
 452                                 'host' => $showHostnames
 453                                                 ? $lb->getServerName( $index )
 454                                                 : '',
 455                                 'lag' => intval( $lag )
 456                         );
 457                 }
 458
 459                 ApiResult::setIndexedTagName( $data, 'db' );
 460
 461                 return $this->getResult()->addValue( 'query', $property, $data );
 462         }
 463
 464         protected function appendStatistics( $property ) {
 465                 $data = array();
 466                 $data['pages'] = intval( SiteStats::pages() );
 467                 $data['articles'] = intval( SiteStats::articles() );
 468                 $data['edits'] = intval( SiteStats::edits() );
 469                 $data['images'] = intval( SiteStats::images() );
 470                 $data['users'] = intval( SiteStats::users() );
 471                 $data['activeusers'] = intval( SiteStats::activeUsers() );
 472                 $data['admins'] = intval( SiteStats::numberingroup( 'sysop' ) );
 473                 $data['jobs'] = intval( SiteStats::jobs() );
 474
 475                 Hooks::run( 'APIQuerySiteInfoStatisticsInfo', array( &$data ) );
 476
 477                 return $this->getResult()->addValue( 'query', $property, $data );
 478         }
 479
 480         protected function appendUserGroups( $property, $numberInGroup ) {
 481                 $config = $this->getConfig();
 482
 483                 $data = array();
 484                 $result = $this->getResult();
 485                 $allGroups = User::getAllGroups();
 486                 foreach ( $config->get( 'GroupPermissions' ) as $group => $permissions ) {
 487                         $arr = array(
 488                                 'name' => $group,
 489                                 'rights' => array_keys( $permissions, true ),
 490                         );
 491
 492                         if ( $numberInGroup ) {
 493                                 $autopromote = $config->get( 'Autopromote' );
 494
 495                                 if ( $group == 'user' ) {
 496                                         $arr['number'] = SiteStats::users();
 497                                 // '*' and autopromote groups have no size
 498                                 } elseif ( $group !== '*' && !isset( $autopromote[$group] ) ) {
 499                                         $arr['number'] = SiteStats::numberingroup( $group );
 500                                 }
 501                         }
 502
 503                         $groupArr = array(
 504                                 'add' => $config->get( 'AddGroups' ),
 505                                 'remove' => $config->get( 'RemoveGroups' ),
 506                                 'add-self' => $config->get( 'GroupsAddToSelf' ),
 507                                 'remove-self' => $config->get( 'GroupsRemoveFromSelf' )
 508                         );
 509
 510                         foreach ( $groupArr as $type => $rights ) {
 511                                 if ( isset( $rights[$group] ) ) {
 512                                         $groups = array_intersect( $rights[$group], $allGroups );
 513                                         if ( $groups ) {
 514                                                 $arr[$type] = $groups;
 515                                                 ApiResult::setArrayType( $arr[$type], 'BCarray' );
 516                                                 ApiResult::setIndexedTagName( $arr[$type], 'group' );
 517                                         }
 518                                 }
 519                         }
 520
 521                         ApiResult::setIndexedTagName( $arr['rights'], 'permission' );
 522                         $data[] = $arr;
 523                 }
 524
 525                 ApiResult::setIndexedTagName( $data, 'group' );
 526
 527                 return $result->addValue( 'query', $property, $data );
 528         }
 529
 530         protected function appendFileExtensions( $property ) {
 531                 $data = array();
 532                 foreach ( array_unique( $this->getConfig()->get( 'FileExtensions' ) ) as $ext ) {
 533                         $data[] = array( 'ext' => $ext );
 534                 }
 535                 ApiResult::setIndexedTagName( $data, 'fe' );
 536
 537                 return $this->getResult()->addValue( 'query', $property, $data );
 538         }
 539
 540         protected function appendInstalledLibraries( $property ) {
 541                 global $IP;
 542                 $path = "$IP/vendor/composer/installed.json";
 543                 if ( !file_exists( $path ) ) {
 544                         return true;
 545                 }
 546
 547                 $data = array();
 548                 $installed = new ComposerInstalled( $path );
 549                 foreach ( $installed->getInstalledDependencies() as $name => $info ) {
 550                         if ( strpos( $info['type'], 'mediawiki-' ) === 0 ) {
 551                                 // Skip any extensions or skins since they'll be listed
 552                                 // in their proper section
 553                                 continue;
 554                         }
 555                         $data[] = array(
 556                                 'name' => $name,
 557                                 'version' => $info['version'],
 558                         );
 559                 }
 560                 ApiResult::setIndexedTagName( $data, 'library' );
 561
 562                 return $this->getResult()->addValue( 'query', $property, $data );
 563
 564         }
 565
 566         protected function appendExtensions( $property ) {
 567                 $data = array();
 568                 foreach ( $this->getConfig()->get( 'ExtensionCredits' ) as $type => $extensions ) {
 569                         foreach ( $extensions as $ext ) {
 570                                 $ret = array();
 571                                 $ret['type'] = $type;
 572                                 if ( isset( $ext['name'] ) ) {
 573                                         $ret['name'] = $ext['name'];
 574                                 }
 575                                 if ( isset( $ext['namemsg'] ) ) {
 576                                         $ret['namemsg'] = $ext['namemsg'];
 577                                 }
 578                                 if ( isset( $ext['description'] ) ) {
 579                                         $ret['description'] = $ext['description'];
 580                                 }
 581                                 if ( isset( $ext['descriptionmsg'] ) ) {
 582                                         // Can be a string or array( key, param1, param2, ... )
 583                                         if ( is_array( $ext['descriptionmsg'] ) ) {
 584                                                 $ret['descriptionmsg'] = $ext['descriptionmsg'][0];
 585                                                 $ret['descriptionmsgparams'] = array_slice( $ext['descriptionmsg'], 1 );
 586                                                 ApiResult::setIndexedTagName( $ret['descriptionmsgparams'], 'param' );
 587                                         } else {
 588                                                 $ret['descriptionmsg'] = $ext['descriptionmsg'];
 589                                         }
 590                                 }
 591                                 if ( isset( $ext['author'] ) ) {
 592                                         $ret['author'] = is_array( $ext['author'] ) ?
 593                                                 implode( ', ', $ext['author'] ) : $ext['author'];
 594                                 }
 595                                 if ( isset( $ext['url'] ) ) {
 596                                         $ret['url'] = $ext['url'];
 597                                 }
 598                                 if ( isset( $ext['version'] ) ) {
 599                                         $ret['version'] = $ext['version'];
 600                                 }
 601                                 if ( isset( $ext['path'] ) ) {
 602                                         $extensionPath = dirname( $ext['path'] );
 603                                         $gitInfo = new GitInfo( $extensionPath );
 604                                         $vcsVersion = $gitInfo->getHeadSHA1();
 605                                         if ( $vcsVersion !== false ) {
 606                                                 $ret['vcs-system'] = 'git';
 607                                                 $ret['vcs-version'] = $vcsVersion;
 608                                                 $ret['vcs-url'] = $gitInfo->getHeadViewUrl();
 609                                                 $vcsDate = $gitInfo->getHeadCommitDate();
 610                                                 if ( $vcsDate !== false ) {
 611                                                         $ret['vcs-date'] = wfTimestamp( TS_ISO_8601, $vcsDate );
 612                                                 }
 613                                         }
 614
 615                                         if ( SpecialVersion::getExtLicenseFileName( $extensionPath ) ) {
 616                                                 $ret['license-name'] = isset( $ext['license-name'] ) ? $ext['license-name'] : '';
 617                                                 $ret['license'] = SpecialPage::getTitleFor(
 618                                                         'Version',
 619                                                         "License/{$ext['name']}"
 620                                                 )->getLinkURL();
 621                                         }
 622
 623                                         if ( SpecialVersion::getExtAuthorsFileName( $extensionPath ) ) {
 624                                                 $ret['credits'] = SpecialPage::getTitleFor(
 625                                                         'Version',
 626                                                         "Credits/{$ext['name']}"
 627                                                 )->getLinkURL();
 628                                         }
 629                                 }
 630                                 $data[] = $ret;
 631                         }
 632                 }
 633
 634                 ApiResult::setIndexedTagName( $data, 'ext' );
 635
 636                 return $this->getResult()->addValue( 'query', $property, $data );
 637         }
 638
 639         protected function appendRightsInfo( $property ) {
 640                 $config = $this->getConfig();
 641                 $rightsPage = $config->get( 'RightsPage' );
 642                 if ( is_string( $rightsPage ) ) {
 643                         $title = Title::newFromText( $rightsPage );
 644                         $url = wfExpandUrl( $title, PROTO_CURRENT );
 645                 } else {
 646                         $title = false;
 647                         $url = $config->get( 'RightsUrl' );
 648                 }
 649                 $text = $config->get( 'RightsText' );
 650                 if ( !$text && $title ) {
 651                         $text = $title->getPrefixedText();
 652                 }
 653
 654                 $data = array(
 655                         'url' => $url ? $url : '',
 656                         'text' => $text ? $text : ''
 657                 );
 658
 659                 return $this->getResult()->addValue( 'query', $property, $data );
 660         }
 661
 662         protected function appendRestrictions( $property ) {
 663                 $config = $this->getConfig();
 664                 $data = array(
 665                         'types' => $config->get( 'RestrictionTypes' ),
 666                         'levels' => $config->get( 'RestrictionLevels' ),
 667                         'cascadinglevels' => $config->get( 'CascadingRestrictionLevels' ),
 668                         'semiprotectedlevels' => $config->get( 'SemiprotectedRestrictionLevels' ),
 669                 );
 670
 671                 ApiResult::setArrayType( $data['types'], 'BCarray' );
 672                 ApiResult::setArrayType( $data['levels'], 'BCarray' );
 673                 ApiResult::setArrayType( $data['cascadinglevels'], 'BCarray' );
 674                 ApiResult::setArrayType( $data['semiprotectedlevels'], 'BCarray' );
 675
 676                 ApiResult::setIndexedTagName( $data['types'], 'type' );
 677                 ApiResult::setIndexedTagName( $data['levels'], 'level' );
 678                 ApiResult::setIndexedTagName( $data['cascadinglevels'], 'level' );
 679                 ApiResult::setIndexedTagName( $data['semiprotectedlevels'], 'level' );
 680
 681                 return $this->getResult()->addValue( 'query', $property, $data );
 682         }
 683
 684         public function appendLanguages( $property ) {
 685                 $params = $this->extractRequestParams();
 686                 $langCode = isset( $params['inlanguagecode'] ) ? $params['inlanguagecode'] : '';
 687                 $langNames = Language::fetchLanguageNames( $langCode );
 688
 689                 $data = array();
 690
 691                 foreach ( $langNames as $code => $name ) {
 692                         $lang = array( 'code' => $code );
 693                         ApiResult::setContentValue( $lang, 'name', $name );
 694                         $data[] = $lang;
 695                 }
 696                 ApiResult::setIndexedTagName( $data, 'lang' );
 697
 698                 return $this->getResult()->addValue( 'query', $property, $data );
 699         }
 700
 701         public function appendSkins( $property ) {
 702                 $data = array();
 703                 $allowed = Skin::getAllowedSkins();
 704                 $default = Skin::normalizeKey( 'default' );
 705                 foreach ( Skin::getSkinNames() as $name => $displayName ) {
 706                         $msg = $this->msg( "skinname-{$name}" );
 707                         $code = $this->getParameter( 'inlanguagecode' );
 708                         if ( $code && Language::isValidCode( $code ) ) {
 709                                 $msg->inLanguage( $code );
 710                         } else {
 711                                 $msg->inContentLanguage();
 712                         }
 713                         if ( $msg->exists() ) {
 714                                 $displayName = $msg->text();
 715                         }
 716                         $skin = array( 'code' => $name );
 717                         ApiResult::setContentValue( $skin, 'name', $displayName );
 718                         if ( !isset( $allowed[$name] ) ) {
 719                                 $skin['unusable'] = true;
 720                         }
 721                         if ( $name === $default ) {
 722                                 $skin['default'] = true;
 723                         }
 724                         $data[] = $skin;
 725                 }
 726                 ApiResult::setIndexedTagName( $data, 'skin' );
 727
 728                 return $this->getResult()->addValue( 'query', $property, $data );
 729         }
 730
 731         public function appendExtensionTags( $property ) {
 732                 global $wgParser;
 733                 $wgParser->firstCallInit();
 734                 $tags = array_map( array( $this, 'formatParserTags' ), $wgParser->getTags() );
 735                 ApiResult::setArrayType( $tags, 'BCarray' );
 736                 ApiResult::setIndexedTagName( $tags, 't' );
 737
 738                 return $this->getResult()->addValue( 'query', $property, $tags );
 739         }
 740
 741         public function appendFunctionHooks( $property ) {
 742                 global $wgParser;
 743                 $wgParser->firstCallInit();
 744                 $hooks = $wgParser->getFunctionHooks();
 745                 ApiResult::setArrayType( $hooks, 'BCarray' );
 746                 ApiResult::setIndexedTagName( $hooks, 'h' );
 747
 748                 return $this->getResult()->addValue( 'query', $property, $hooks );
 749         }
 750
 751         public function appendVariables( $property ) {
 752                 $variables = MagicWord::getVariableIDs();
 753                 ApiResult::setArrayType( $variables, 'BCarray' );
 754                 ApiResult::setIndexedTagName( $variables, 'v' );
 755
 756                 return $this->getResult()->addValue( 'query', $property, $variables );
 757         }
 758
 759         public function appendProtocols( $property ) {
 760                 // Make a copy of the global so we don't try to set the _element key of it - bug 45130
 761                 $protocols = array_values( $this->getConfig()->get( 'UrlProtocols' ) );
 762                 ApiResult::setArrayType( $protocols, 'BCarray' );
 763                 ApiResult::setIndexedTagName( $protocols, 'p' );
 764
 765                 return $this->getResult()->addValue( 'query', $property, $protocols );
 766         }
 767
 768         public function appendDefaultOptions( $property ) {
 769                 $options = User::getDefaultOptions();
 770                 $options[ApiResult::META_BC_BOOLS] = array_keys( $options );
 771                 return $this->getResult()->addValue( 'query', $property, $options );
 772         }
 773
 774         private function formatParserTags( $item ) {
 775                 return "<{$item}>";
 776         }
 777
 778         public function appendSubscribedHooks( $property ) {
 779                 $hooks = $this->getConfig()->get( 'Hooks' );
 780                 $myWgHooks = $hooks;
 781                 ksort( $myWgHooks );
 782
 783                 $data = array();
 784                 foreach ( $myWgHooks as $name => $subscribers ) {
 785                         $arr = array(
 786                                 'name' => $name,
 787                                 'subscribers' => array_map( array( 'SpecialVersion', 'arrayToString' ), $subscribers ),
 788                         );
 789
 790                         ApiResult::setArrayType( $arr['subscribers'], 'array' );
 791                         ApiResult::setIndexedTagName( $arr['subscribers'], 's' );
 792                         $data[] = $arr;
 793                 }
 794
 795                 ApiResult::setIndexedTagName( $data, 'hook' );
 796
 797                 return $this->getResult()->addValue( 'query', $property, $data );
 798         }
 799
 800         public function getCacheMode( $params ) {
 801                 // Messages for $wgExtraInterlanguageLinkPrefixes depend on user language
 802                 if (
 803                         count( $this->getConfig()->get( 'ExtraInterlanguageLinkPrefixes' ) ) &&
 804                         !is_null( $params['prop'] ) &&
 805                         in_array( 'interwikimap', $params['prop'] )
 806                 ) {
 807                         return 'anon-public-user-private';
 808                 }
 809
 810                 return 'public';
 811         }
 812
 813         public function getAllowedParams() {
 814                 return array(
 815                         'prop' => array(
 816                                 ApiBase::PARAM_DFLT => 'general',
 817                                 ApiBase::PARAM_ISMULTI => true,
 818                                 ApiBase::PARAM_TYPE => array(
 819                                         'general',
 820                                         'namespaces',
 821                                         'namespacealiases',
 822                                         'specialpagealiases',
 823                                         'magicwords',
 824                                         'interwikimap',
 825                                         'dbrepllag',
 826                                         'statistics',
 827                                         'usergroups',
 828                                         'libraries',
 829                                         'extensions',
 830                                         'fileextensions',
 831                                         'rightsinfo',
 832                                         'restrictions',
 833                                         'languages',
 834                                         'skins',
 835                                         'extensiontags',
 836                                         'functionhooks',
 837                                         'showhooks',
 838                                         'variables',
 839                                         'protocols',
 840                                         'defaultoptions',
 841                                 ),
 842                                 ApiBase::PARAM_HELP_MSG_PER_VALUE => array(),
 843                         ),
 844                         'filteriw' => array(
 845                                 ApiBase::PARAM_TYPE => array(
 846                                         'local',
 847                                         '!local',
 848                                 )
 849                         ),
 850                         'showalldb' => false,
 851                         'numberingroup' => false,
 852                         'inlanguagecode' => null,
 853                 );
 854         }
 855
 856         protected function getExamplesMessages() {
 857                 return array(
 858                         'action=query&meta=siteinfo&siprop=general|namespaces|namespacealiases|statistics'
 859                                 => 'apihelp-query+siteinfo-example-simple',
 860                         'action=query&meta=siteinfo&siprop=interwikimap&sifilteriw=local'
 861                                 => 'apihelp-query+siteinfo-example-interwiki',
 862                         'action=query&meta=siteinfo&siprop=dbrepllag&sishowalldb='
 863                                 => 'apihelp-query+siteinfo-example-replag',
 864                 );
 865         }
 866
 867         public function getHelpUrls() {
 868                 return 'https://www.mediawiki.org/wiki/API:Siteinfo';
 869         }
 870 }