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 'interwikimap':
  61                                         $filteriw = isset( $params['filteriw'] ) ? $params['filteriw'] : false;
  62                                         $this->appendInterwikiMap( $p, $filteriw );
  63                                         break;
  64                                 case 'dbrepllag':
  65                                         $this->appendDbReplLagInfo( $p, $params['showalldb'] );
  66                                         break;
  67                                 case 'statistics':
  68                                         $this->appendStatistics( $p );
  69                                         break;
  70                                 case 'usergroups':
  71                                         $this->appendUserGroups( $p );
  72                                         break;
  73                                 default :
  74                                         ApiBase :: dieDebug( __METHOD__, "Unknown prop=$p" );
  75                         }
  76                 }
  77         }
  78
  79         protected function appendGeneralInfo( $property ) {
  80                 global $wgSitename, $wgVersion, $wgCapitalLinks, $wgRightsCode, $wgRightsText, $wgContLang;
  81                 global $wgLanguageCode, $IP, $wgEnableWriteAPI, $wgLang, $wgLocaltimezone, $wgLocalTZoffset;
  82
  83                 $data = array();
  84                 $mainPage = Title :: newFromText(wfMsgForContent('mainpage'));
  85                 $data['mainpage'] = $mainPage->getPrefixedText();
  86                 $data['base'] = $mainPage->getFullUrl();
  87                 $data['sitename'] = $wgSitename;
  88                 $data['generator'] = "MediaWiki $wgVersion";
  89
  90                 $svn = SpecialVersion::getSvnRevision( $IP );
  91                 if( $svn )
  92                         $data['rev'] = $svn;
  93
  94                 $data['case'] = $wgCapitalLinks ? 'first-letter' : 'case-sensitive'; // 'case-insensitive' option is reserved for future
  95
  96                 if( isset( $wgRightsCode ) )
  97                         $data['rightscode'] = $wgRightsCode;
  98                 $data['rights'] = $wgRightsText;
  99                 $data['lang'] = $wgLanguageCode;
 100                 if( $wgContLang->isRTL() )
 101                         $data['rtl'] = '';
 102                 $data['fallback8bitEncoding'] = $wgLang->fallback8bitEncoding();
 103
 104                 if( wfReadOnly() )
 105                         $data['readonly'] = '';
 106                 if( $wgEnableWriteAPI )
 107                         $data['writeapi'] = '';
 108
 109                 $tz = $wgLocaltimezone;
 110                 $offset = $wgLocalTZoffset;
 111                 if( is_null( $tz ) ) {
 112                         $tz = 'UTC';
 113                         $offset = 0;
 114                 } elseif( is_null( $offset ) ) {
 115                         $offset = 0;
 116                 }
 117                 $data['timezone'] = $tz;
 118                 $data['timeoffset'] = $offset;
 119
 120                 $this->getResult()->addValue( 'query', $property, $data );
 121         }
 122
 123         protected function appendNamespaces( $property ) {
 124                 global $wgContLang;
 125                 $data = array();
 126                 foreach( $wgContLang->getFormattedNamespaces() as $ns => $title )
 127                 {
 128                         $data[$ns] = array(
 129                                 'id' => $ns
 130                         );
 131                         ApiResult :: setContent( $data[$ns], $title );
 132                         if( MWNamespace::hasSubpages($ns) )
 133                                 $data[$ns]['subpages'] = '';
 134                 }
 135
 136                 $this->getResult()->setIndexedTagName( $data, 'ns' );
 137                 $this->getResult()->addValue( 'query', $property, $data );
 138         }
 139
 140         protected function appendNamespaceAliases( $property ) {
 141                 global $wgNamespaceAliases;
 142                 $data = array();
 143                 foreach( $wgNamespaceAliases as $title => $ns ) {
 144                         $item = array(
 145                                 'id' => $ns
 146                         );
 147                         ApiResult :: setContent( $item, strtr( $title, '_', ' ' ) );
 148                         $data[] = $item;
 149                 }
 150
 151                 $this->getResult()->setIndexedTagName( $data, 'ns' );
 152                 $this->getResult()->addValue( 'query', $property, $data );
 153         }
 154
 155         protected function appendSpecialPageAliases( $property ) {
 156                 global $wgLang;
 157                 $data = array();
 158                 foreach( $wgLang->getSpecialPageAliases() as $specialpage => $aliases )
 159                 {
 160                         $arr = array( 'realname' => $specialpage, 'aliases' => $aliases );
 161                         $this->getResult()->setIndexedTagName( $arr['aliases'], 'alias' );
 162                         $data[] = $arr;
 163                 }
 164                 $this->getResult()->setIndexedTagName( $data, 'specialpage' );
 165                 $this->getResult()->addValue( 'query', $property, $data );
 166         }
 167
 168         protected function appendInterwikiMap( $property, $filter ) {
 169                 $this->resetQueryParams();
 170                 $this->addTables( 'interwiki' );
 171                 $this->addFields( array( 'iw_prefix', 'iw_local', 'iw_url' ) );
 172
 173                 if( $filter === 'local' )
 174                         $this->addWhere( 'iw_local = 1' );
 175                 elseif( $filter === '!local' )
 176                         $this->addWhere( 'iw_local = 0' );
 177                 elseif( $filter !== false )
 178                         ApiBase :: dieDebug( __METHOD__, "Unknown filter=$filter" );
 179
 180                 $this->addOption( 'ORDER BY', 'iw_prefix' );
 181
 182                 $db = $this->getDB();
 183                 $res = $this->select( __METHOD__ );
 184
 185                 $data = array();
 186                 $langNames = Language::getLanguageNames();
 187                 while( $row = $db->fetchObject($res) )
 188                 {
 189                         $val = array();
 190                         $val['prefix'] = $row->iw_prefix;
 191                         if( $row->iw_local == '1' )
 192                                 $val['local'] = '';
 193 //                      $val['trans'] = intval($row->iw_trans); // should this be exposed?
 194                         if( isset( $langNames[$row->iw_prefix] ) )
 195                                 $val['language'] = $langNames[$row->iw_prefix];
 196                         $val['url'] = $row->iw_url;
 197
 198                         $data[] = $val;
 199                 }
 200                 $db->freeResult( $res );
 201
 202                 $this->getResult()->setIndexedTagName( $data, 'iw' );
 203                 $this->getResult()->addValue( 'query', $property, $data );
 204         }
 205
 206         protected function appendDbReplLagInfo( $property, $includeAll ) {
 207                 global $wgShowHostnames;
 208                 $data = array();
 209                 if( $includeAll ) {
 210                         if ( !$wgShowHostnames )
 211                                 $this->dieUsage('Cannot view all servers info unless $wgShowHostnames is true', 'includeAllDenied');
 212
 213                         $lb = wfGetLB();
 214                         $lags = $lb->getLagTimes();
 215                         foreach( $lags as $i => $lag ) {
 216                                 $data[] = array(
 217                                         'host' => $lb->getServerName( $i ),
 218                                         'lag' => $lag
 219                                 );
 220                         }
 221                 } else {
 222                         list( $host, $lag ) = wfGetLB()->getMaxLag();
 223                         $data[] = array(
 224                                 'host' => $wgShowHostnames ? $host : '',
 225                                 'lag' => $lag
 226                         );
 227                 }
 228
 229                 $result = $this->getResult();
 230                 $result->setIndexedTagName( $data, 'db' );
 231                 $result->addValue( 'query', $property, $data );
 232         }
 233
 234         protected function appendStatistics( $property ) {
 235                 $data = array();
 236                 $data['pages'] = intval( SiteStats::pages() );
 237                 $data['articles'] = intval( SiteStats::articles() );
 238                 $data['views'] = intval( SiteStats::views() );
 239                 $data['edits'] = intval( SiteStats::edits() );
 240                 $data['images'] = intval( SiteStats::images() );
 241                 $data['users'] = intval( SiteStats::users() );
 242                 $data['admins'] = intval( SiteStats::numberingroup('sysop') );
 243                 $data['jobs'] = intval( SiteStats::jobs() );
 244                 $this->getResult()->addValue( 'query', $property, $data );
 245         }
 246
 247         protected function appendUserGroups( $property ) {
 248                 global $wgGroupPermissions;
 249                 $data = array();
 250                 foreach( $wgGroupPermissions as $group => $permissions ) {
 251                         $arr = array( 'name' => $group, 'rights' => array_keys( $permissions, true ) );
 252                         $this->getResult()->setIndexedTagName( $arr['rights'], 'permission' );
 253                         $data[] = $arr;
 254                 }
 255
 256                 $this->getResult()->setIndexedTagName( $data, 'group' );
 257                 $this->getResult()->addValue( 'query', $property, $data );
 258         }
 259
 260         public function getAllowedParams() {
 261                 return array(
 262                         'prop' => array(
 263                                 ApiBase :: PARAM_DFLT => 'general',
 264                                 ApiBase :: PARAM_ISMULTI => true,
 265                                 ApiBase :: PARAM_TYPE => array(
 266                                         'general',
 267                                         'namespaces',
 268                                         'namespacealiases',
 269                                         'specialpagealiases',
 270                                         'interwikimap',
 271                                         'dbrepllag',
 272                                         'statistics',
 273                                         'usergroups',
 274                                 )
 275                         ),
 276                         'filteriw' => array(
 277                                 ApiBase :: PARAM_TYPE => array(
 278                                         'local',
 279                                         '!local',
 280                                 )
 281                         ),
 282                         'showalldb' => false,
 283                 );
 284         }
 285
 286         public function getParamDescription() {
 287                 return array(
 288                         'prop' => array(
 289                                 'Which sysinfo properties to get:',
 290                                 ' "general"      - Overall system information',
 291                                 ' "namespaces"   - List of registered namespaces (localized)',
 292                                 ' "namespacealiases" - List of registered namespace aliases',
 293                                 ' "specialpagealiases" - List of special page aliases',
 294                                 ' "statistics"   - Returns site statistics',
 295                                 ' "interwikimap" - Returns interwiki map (optionally filtered)',
 296                                 ' "dbrepllag"    - Returns database server with the highest replication lag',
 297                                 ' "usergroups"   - Returns user groups and the associated permissions',
 298                         ),
 299                         'filteriw' =>  'Return only local or only nonlocal entries of the interwiki map',
 300                         'showalldb' => 'List all database servers, not just the one lagging the most',
 301                 );
 302         }
 303
 304         public function getDescription() {
 305                 return 'Return general information about the site.';
 306         }
 307
 308         protected function getExamples() {
 309                 return array(
 310                         'api.php?action=query&meta=siteinfo&siprop=general|namespaces|namespacealiases|statistics',
 311                         'api.php?action=query&meta=siteinfo&siprop=interwikimap&sifilteriw=local',
 312                         'api.php?action=query&meta=siteinfo&siprop=dbrepllag&sishowalldb',
 313                         );
 314         }
 315
 316         public function getVersion() {
 317                 return __CLASS__ . ': $Id$';
 318         }
 319 }