includes/api/ApiQuerySiteinfo.php

   1 <?php
   2
   3 /*
   4  * Created on Sep 25, 2006
   5  *
   6  * API for MediaWiki 1.8+
   7  *
   8  * Copyright (C) 2006 Yuri Astrakhan <Firstname><Lastname>@gmail.com
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License along
  21  * with this program; if not, write to the Free Software Foundation, Inc.,
  22  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  23  * http://www.gnu.org/copyleft/gpl.html
  24  */
  25
  26 if( !defined('MEDIAWIKI') ) {
  27         // Eclipse helper - will be ignored in production
  28         require_once( 'ApiQueryBase.php' );
  29 }
  30
  31 /**
  32  * A query action to return meta information about the wiki site.
  33  *
  34  * @ingroup API
  35  */
  36 class ApiQuerySiteinfo extends ApiQueryBase {
  37
  38         public function __construct( $query, $moduleName ) {
  39                 parent :: __construct( $query, $moduleName, 'si' );
  40         }
  41
  42         public function execute() {
  43                 $params = $this->extractRequestParams();
  44                 foreach( $params['prop'] as $p )
  45                 {
  46                         switch ( $p )
  47                         {
  48                                 case 'general':
  49                                         $this->appendGeneralInfo( $p );
  50                                         break;
  51                                 case 'namespaces':
  52                                         $this->appendNamespaces( $p );
  53                                         break;
  54                                 case 'namespacealiases':
  55                                         $this->appendNamespaceAliases( $p );
  56                                         break;
  57                                 case 'specialpagealiases':
  58                                         $this->appendSpecialPageAliases( $p );
  59                                         break;
  60                                 case 'magicwords':
  61                                         $this->appendMagicWords( $p );
  62                                         break;
  63                                 case 'interwikimap':
  64                                         $filteriw = isset( $params['filteriw'] ) ? $params['filteriw'] : false;
  65                                         $this->appendInterwikiMap( $p, $filteriw );
  66                                         break;
  67                                 case 'dbrepllag':
  68                                         $this->appendDbReplLagInfo( $p, $params['showalldb'] );
  69                                         break;
  70                                 case 'statistics':
  71                                         $this->appendStatistics( $p );
  72                                         break;
  73                                 case 'usergroups':
  74                                         $this->appendUserGroups( $p );
  75                                         break;
  76                                 case 'extensions':
  77                                         $this->appendExtensions( $p );
  78                                         break;
  79                                 case 'fileextensions':
  80                                         $this->appendFileExtensions( $p );
  81                                         break;
  82                                 case 'configvars':
  83                                         $this->appendConfigvars( $p, $params['configvars'] );
  84                                         break;
  85                                 default :
  86                                         ApiBase :: dieDebug( __METHOD__, "Unknown prop=$p" );
  87                         }
  88                 }
  89         }
  90
  91         protected function appendGeneralInfo( $property ) {
  92                 global $wgSitename, $wgVersion, $wgCapitalLinks, $wgRightsCode, $wgRightsText, $wgContLang;
  93                 global $wgLanguageCode, $IP, $wgEnableWriteAPI, $wgLang, $wgLocaltimezone, $wgLocalTZoffset;
  94
  95                 $data = array();
  96                 $mainPage = Title :: newFromText(wfMsgForContent('mainpage'));
  97                 $data['mainpage'] = $mainPage->getPrefixedText();
  98                 $data['base'] = $mainPage->getFullUrl();
  99                 $data['sitename'] = $wgSitename;
 100                 $data['generator'] = "MediaWiki $wgVersion";
 101
 102                 $svn = SpecialVersion::getSvnRevision( $IP );
 103                 if( $svn )
 104                         $data['rev'] = $svn;
 105
 106                 $data['case'] = $wgCapitalLinks ? 'first-letter' : 'case-sensitive'; // 'case-insensitive' option is reserved for future
 107
 108                 if( isset( $wgRightsCode ) )
 109                         $data['rightscode'] = $wgRightsCode;
 110                 $data['rights'] = $wgRightsText;
 111                 $data['lang'] = $wgLanguageCode;
 112                 if( $wgContLang->isRTL() )
 113                         $data['rtl'] = '';
 114                 $data['fallback8bitEncoding'] = $wgLang->fallback8bitEncoding();
 115
 116                 if( wfReadOnly() )
 117                         $data['readonly'] = '';
 118                 if( $wgEnableWriteAPI )
 119                         $data['writeapi'] = '';
 120
 121                 $tz = $wgLocaltimezone;
 122                 $offset = $wgLocalTZoffset;
 123                 if( is_null( $tz ) ) {
 124                         $tz = 'UTC';
 125                         $offset = 0;
 126                 } elseif( is_null( $offset ) ) {
 127                         $offset = 0;
 128                 }
 129                 $data['timezone'] = $tz;
 130                 $data['timeoffset'] = $offset;
 131
 132                 $this->getResult()->addValue( 'query', $property, $data );
 133         }
 134
 135         protected function appendNamespaces( $property ) {
 136                 global $wgContLang;
 137                 $data = array();
 138                 foreach( $wgContLang->getFormattedNamespaces() as $ns => $title )
 139                 {
 140                         $data[$ns] = array(
 141                                 'id' => $ns
 142                         );
 143                         ApiResult :: setContent( $data[$ns], $title );
 144                         $canonical = MWNamespace::getCanonicalName( $ns );
 145
 146                         if( MWNamespace::hasSubpages( $ns ) )
 147                                 $data[$ns]['subpages'] = '';
 148
 149                         if( $canonical )
 150                                 $data[$ns]['canonical'] = strtr($canonical, '_', ' ');
 151                 }
 152
 153                 $this->getResult()->setIndexedTagName( $data, 'ns' );
 154                 $this->getResult()->addValue( 'query', $property, $data );
 155         }
 156
 157         protected function appendNamespaceAliases( $property ) {
 158                 global $wgNamespaceAliases, $wgContLang;
 159                 $wgContLang->load();
 160                 $aliases = array_merge($wgNamespaceAliases, $wgContLang->namespaceAliases);
 161                 $data = array();
 162                 foreach( $aliases as $title => $ns ) {
 163                         $item = array(
 164                                 'id' => $ns
 165                         );
 166                         ApiResult :: setContent( $item, strtr( $title, '_', ' ' ) );
 167                         $data[] = $item;
 168                 }
 169
 170                 $this->getResult()->setIndexedTagName( $data, 'ns' );
 171                 $this->getResult()->addValue( 'query', $property, $data );
 172         }
 173
 174         protected function appendSpecialPageAliases( $property ) {
 175                 global $wgLang;
 176                 $data = array();
 177                 foreach( $wgLang->getSpecialPageAliases() as $specialpage => $aliases )
 178                 {
 179                         $arr = array( 'realname' => $specialpage, 'aliases' => $aliases );
 180                         $this->getResult()->setIndexedTagName( $arr['aliases'], 'alias' );
 181                         $data[] = $arr;
 182                 }
 183                 $this->getResult()->setIndexedTagName( $data, 'specialpage' );
 184                 $this->getResult()->addValue( 'query', $property, $data );
 185         }
 186
 187         protected function appendMagicWords( $property ) {
 188                 global $wgContLang;
 189                 $data = array();
 190                 foreach($wgContLang->getMagicWords() as $magicword => $aliases)
 191                 {
 192                         $caseSensitive = array_shift($aliases);
 193                         $arr = array('name' => $magicword, 'aliases' => $aliases);
 194                         if($caseSensitive)
 195                                 $arr['case-sensitive'] = '';
 196                         $this->getResult()->setIndexedTagName($arr['aliases'], 'alias');
 197                         $data[] = $arr;
 198                 }
 199                 $this->getResult()->setIndexedTagName($data, 'magicword');
 200                 $this->getResult()->addValue('query', $property, $data);
 201         }
 202
 203         protected function appendInterwikiMap( $property, $filter ) {
 204                 $this->resetQueryParams();
 205                 $this->addTables( 'interwiki' );
 206                 $this->addFields( array( 'iw_prefix', 'iw_local', 'iw_url' ) );
 207
 208                 if( $filter === 'local' )
 209                         $this->addWhere( 'iw_local = 1' );
 210                 elseif( $filter === '!local' )
 211                         $this->addWhere( 'iw_local = 0' );
 212                 elseif( $filter )
 213                         ApiBase :: dieDebug( __METHOD__, "Unknown filter=$filter" );
 214
 215                 $this->addOption( 'ORDER BY', 'iw_prefix' );
 216
 217                 $db = $this->getDB();
 218                 $res = $this->select( __METHOD__ );
 219
 220                 $data = array();
 221                 $langNames = Language::getLanguageNames();
 222                 while( $row = $db->fetchObject($res) )
 223                 {
 224                         $val = array();
 225                         $val['prefix'] = $row->iw_prefix;
 226                         if( $row->iw_local == '1' )
 227                                 $val['local'] = '';
 228 //                      $val['trans'] = intval($row->iw_trans); // should this be exposed?
 229                         if( isset( $langNames[$row->iw_prefix] ) )
 230                                 $val['language'] = $langNames[$row->iw_prefix];
 231                         $val['url'] = $row->iw_url;
 232
 233                         $data[] = $val;
 234                 }
 235                 $db->freeResult( $res );
 236
 237                 $this->getResult()->setIndexedTagName( $data, 'iw' );
 238                 $this->getResult()->addValue( 'query', $property, $data );
 239         }
 240
 241         protected function appendDbReplLagInfo( $property, $includeAll ) {
 242                 global $wgShowHostnames;
 243                 $data = array();
 244                 if( $includeAll ) {
 245                         if ( !$wgShowHostnames )
 246                                 $this->dieUsage('Cannot view all servers info unless $wgShowHostnames is true', 'includeAllDenied');
 247
 248                         $lb = wfGetLB();
 249                         $lags = $lb->getLagTimes();
 250                         foreach( $lags as $i => $lag ) {
 251                                 $data[] = array(
 252                                         'host' => $lb->getServerName( $i ),
 253                                         'lag' => $lag
 254                                 );
 255                         }
 256                 } else {
 257                         list( $host, $lag ) = wfGetLB()->getMaxLag();
 258                         $data[] = array(
 259                                 'host' => $wgShowHostnames ? $host : '',
 260                                 'lag' => $lag
 261                         );
 262                 }
 263
 264                 $result = $this->getResult();
 265                 $result->setIndexedTagName( $data, 'db' );
 266                 $result->addValue( 'query', $property, $data );
 267         }
 268
 269         protected function appendStatistics( $property ) {
 270                 $data = array();
 271                 $data['pages'] = intval( SiteStats::pages() );
 272                 $data['articles'] = intval( SiteStats::articles() );
 273                 $data['views'] = intval( SiteStats::views() );
 274                 $data['edits'] = intval( SiteStats::edits() );
 275                 $data['images'] = intval( SiteStats::images() );
 276                 $data['users'] = intval( SiteStats::users() );
 277                 $data['activeusers'] = intval( SiteStats::activeUsers() );
 278                 $data['admins'] = intval( SiteStats::numberingroup('sysop') );
 279                 $data['jobs'] = intval( SiteStats::jobs() );
 280                 $this->getResult()->addValue( 'query', $property, $data );
 281         }
 282
 283         protected function appendUserGroups( $property ) {
 284                 global $wgGroupPermissions;
 285                 $data = array();
 286                 foreach( $wgGroupPermissions as $group => $permissions ) {
 287                         $arr = array( 'name' => $group, 'rights' => array_keys( $permissions, true ) );
 288                         $this->getResult()->setIndexedTagName( $arr['rights'], 'permission' );
 289                         $data[] = $arr;
 290                 }
 291
 292                 $this->getResult()->setIndexedTagName( $data, 'group' );
 293                 $this->getResult()->addValue( 'query', $property, $data );
 294         }
 295
 296         protected function appendFileExtensions( $property ) {
 297                 global $wgFileExtensions;
 298
 299                 $data = array();
 300                 foreach( $wgFileExtensions as $ext ) {
 301                         $data[] = array( 'ext' => $ext );
 302                 }
 303                 $this->getResult()->setIndexedTagName( $data, 'fe' );
 304                 $this->getResult()->addValue( 'query', $property, $data );
 305         }
 306
 307         protected function appendExtensions( $property ) {
 308                 global $wgExtensionCredits;
 309                 $data = array();
 310                 foreach ( $wgExtensionCredits as $type => $extensions ) {
 311                         foreach ( $extensions as $ext ) {
 312                                 $ret = array();
 313                                 $ret['type'] = $type;
 314                                 if ( isset( $ext['name'] ) )
 315                                         $ret['name'] = $ext['name'];
 316                                 if ( isset( $ext['description'] ) )
 317                                         $ret['description'] = $ext['description'];
 318                                 if ( isset( $ext['descriptionmsg'] ) )
 319                                         $ret['descriptionmsg'] = $ext['descriptionmsg'];
 320                                 if ( isset( $ext['author'] ) ) {
 321                                         $ret['author'] = is_array( $ext['author'] ) ?
 322                                                 implode( ', ', $ext['author' ] ) : $ext['author'];
 323                                 }
 324                                 if ( isset( $ext['version'] ) ) {
 325                                                 $ret['version'] = $ext['version'];
 326                                 } elseif ( isset( $ext['svn-revision'] ) &&
 327                                         preg_match( '/\$(?:Rev|LastChangedRevision|Revision): *(\d+)/',
 328                                                 $ext['svn-revision'], $m ) )
 329                                 {
 330                                                 $ret['version'] = 'r' . $m[1];
 331                                 }
 332                                 $data[] = $ret;
 333                         }
 334                 }
 335
 336                 $this->getResult()->setIndexedTagName( $data, 'ext' );
 337                 $this->getResult()->addValue( 'query', $property, $data );
 338         }
 339
 340         protected function appendConfigvars( $property, $vars ) {
 341                 global $wgAPIReadableConfigVars;
 342                 if(empty($vars))
 343                         $vars = $wgAPIReadableConfigVars;
 344                 $data = array();
 345                 foreach((array)$vars as $var)
 346                 {
 347                         $value = $GLOBALS[$var];
 348                         $r = array();
 349                         $r['name'] = $var;
 350                         $r['type'] = gettype($value);
 351                         if(is_object($value))
 352                                 $r['class'] = get_class($value);
 353                         elseif(is_bool($value))
 354                                 $r['value'] = ($value ? 'true' : 'false');
 355                         elseif(!is_null($value))
 356                         {
 357                                 $r['value'] = $value;
 358                                 if(is_array($value))
 359                                 {
 360                                         $this->getResult()->setIndexedTagName($r['value'], 'elem');
 361                                         $this->getResult()->setIndexedTagName_recursive($r['value'], 'elem');
 362                                 }
 363                         }
 364                         $data[] = $r;
 365                 }
 366                 $this->getResult()->setIndexedTagName($data, 'config');
 367                 $this->getResult()->addValue('query', $property, $data);
 368         }
 369
 370         public function getAllowedParams() {
 371                 global $wgAPIReadableConfigVars;
 372                 return array(
 373                         'prop' => array(
 374                                 ApiBase :: PARAM_DFLT => 'general',
 375                                 ApiBase :: PARAM_ISMULTI => true,
 376                                 ApiBase :: PARAM_TYPE => array(
 377                                         'general',
 378                                         'namespaces',
 379                                         'namespacealiases',
 380                                         'specialpagealiases',
 381                                         'magicwords',
 382                                         'interwikimap',
 383                                         'dbrepllag',
 384                                         'statistics',
 385                                         'usergroups',
 386                                         'extensions',
 387                                         'fileextensions',
 388                                         'configvars',
 389                                 )
 390                         ),
 391                         'filteriw' => array(
 392                                 ApiBase :: PARAM_TYPE => array(
 393                                         'local',
 394                                         '!local',
 395                                 )
 396                         ),
 397                         'showalldb' => false,
 398                         'configvars' => array(
 399                                 ApiBase :: PARAM_ISMULTI => true,
 400                                 ApiBase :: PARAM_TYPE => $wgAPIReadableConfigVars,
 401                         ),
 402                 );
 403         }
 404
 405         public function getParamDescription() {
 406                 return array(
 407                         'prop' => array(
 408                                 'Which sysinfo properties to get:',
 409                                 ' "general"      - Overall system information',
 410                                 ' "namespaces"   - List of registered namespaces and their canonical names',
 411                                 ' "namespacealiases" - List of registered namespace aliases',
 412                                 ' "specialpagealiases" - List of special page aliases',
 413                                 ' "magicwords"   - List of magic words and their aliases',
 414                                 ' "statistics"   - Returns site statistics',
 415                                 ' "interwikimap" - Returns interwiki map (optionally filtered)',
 416                                 ' "dbrepllag"    - Returns database server with the highest replication lag',
 417                                 ' "usergroups"   - Returns user groups and the associated permissions',
 418                                 ' "extensions"   - Returns extensions installed on the wiki',
 419                                 ' "fileextensions" - Returns list of file extensions allowed to be uploaded',
 420                                 ' "configvars"   - Returns the value of certain configuration variables',
 421                         ),
 422                         'filteriw' =>  'Return only local or only nonlocal entries of the interwiki map',
 423                         'showalldb' => 'List all database servers, not just the one lagging the most',
 424                         'configvars' => 'Configuration variables to get. If empty, all configuration variables will be listed.',
 425                 );
 426         }
 427
 428         public function getDescription() {
 429                 return 'Return general information about the site.';
 430         }
 431
 432         protected function getExamples() {
 433                 return array(
 434                         'api.php?action=query&meta=siteinfo&siprop=general|namespaces|namespacealiases|statistics',
 435                         'api.php?action=query&meta=siteinfo&siprop=interwikimap&sifilteriw=local',
 436                         'api.php?action=query&meta=siteinfo&siprop=dbrepllag&sishowalldb',
 437                 );
 438         }
 439
 440         public function getVersion() {
 441                 return __CLASS__ . ': $Id$';
 442         }
 443 }