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  * @addtogroup 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
  44                 $params = $this->extractRequestParams();
  45
  46                 foreach ($params['prop'] as $p) {
  47                         switch ($p) {
  48                                 default :
  49                                         ApiBase :: dieDebug(__METHOD__, "Unknown prop=$p");
  50                                 case 'general' :
  51                                         $this->appendGeneralInfo($p);
  52                                         break;
  53                                 case 'namespaces' :
  54                                         $this->appendNamespaces($p);
  55                                         break;
  56                                 case 'interwikimap' :
  57                                         $filteriw = isset($params['filteriw']) ? $params['filteriw'] : false;
  58                                         $this->appendInterwikiMap($p, $filteriw);
  59                                         break;
  60                                 case 'dbrepllag' :
  61                                         $this->appendDbReplLagInfo($p, $params['showalldb']);
  62                                         break;
  63                         }
  64                 }
  65         }
  66
  67         protected function appendGeneralInfo($property) {
  68                 global $wgSitename, $wgVersion, $wgCapitalLinks, $wgRightsCode, $wgRightsText, $wgLanguageCode;
  69
  70                 $data = array ();
  71                 $mainPage = Title :: newFromText(wfMsgForContent('mainpage'));
  72                 $data['mainpage'] = $mainPage->getText();
  73                 $data['base'] = $mainPage->getFullUrl();
  74                 $data['sitename'] = $wgSitename;
  75                 $data['generator'] = "MediaWiki $wgVersion";
  76                 $data['case'] = $wgCapitalLinks ? 'first-letter' : 'case-sensitive'; // 'case-insensitive' option is reserved for future
  77                 if (isset($wgRightsCode))
  78                         $data['rightscode'] = $wgRightsCode;
  79                 $data['rights'] = $wgRightsText;
  80                 $data['lang'] = $wgLanguageCode;
  81
  82                 $this->getResult()->addValue('query', $property, $data);
  83         }
  84
  85         protected function appendNamespaces($property) {
  86                 global $wgContLang;
  87
  88                 $data = array ();
  89                 foreach ($wgContLang->getFormattedNamespaces() as $ns => $title) {
  90                         $data[$ns] = array (
  91                                 'id' => $ns
  92                         );
  93                         ApiResult :: setContent($data[$ns], $title);
  94                 }
  95
  96                 $this->getResult()->setIndexedTagName($data, 'ns');
  97                 $this->getResult()->addValue('query', $property, $data);
  98         }
  99
 100         protected function appendInterwikiMap($property, $filter) {
 101
 102                 $this->addTables('interwiki');
 103                 $this->addFields(array('iw_prefix', 'iw_local', 'iw_url'));
 104
 105                 if($filter === 'local')
 106                         $this->addWhere('iw_local = 1');
 107                 else if($filter === '!local')
 108                         $this->addWhere('iw_local = 0');
 109                 else if($filter !== false)
 110                         ApiBase :: dieDebug(__METHOD__, "Unknown filter=$filter");
 111
 112                 $this->addOption('ORDER BY', 'iw_prefix');
 113
 114                 $db = $this->getDB();
 115                 $res = $this->select(__METHOD__);
 116
 117                 $data = array();
 118                 while($row = $db->fetchObject($res))
 119                 {
 120                         $val['prefix'] = $row->iw_prefix;
 121                         if ($row->iw_local == '1')
 122                                 $val['local'] = '';
 123 //                      $val['trans'] = intval($row->iw_trans); // should this be exposed?
 124                         $val['url'] = $row->iw_url;
 125
 126                         $data[] = $val;
 127                 }
 128                 $db->freeResult($res);
 129
 130                 $this->getResult()->setIndexedTagName($data, 'iw');
 131                 $this->getResult()->addValue('query', $property, $data);
 132         }
 133
 134         protected function appendDbReplLagInfo($property, $includeAll) {
 135                 global $wgLoadBalancer, $wgShowHostnames;
 136
 137                 $data = array();
 138
 139                 if ($includeAll) {
 140                         if (!$wgShowHostnames)
 141                                 $this->dieUsage('Cannot view all servers info unless $wgShowHostnames is true', 'includeAllDenied');
 142
 143                         global $wgDBservers;
 144                         $lags = $wgLoadBalancer->getLagTimes();
 145                         foreach( $lags as $i => $lag ) {
 146                                 $data[] = array (
 147                                         'host' => $wgDBservers[$i]['host'],
 148                                         'lag' => $lag);
 149                         }
 150                 } else {
 151                         list( $host, $lag ) = $wgLoadBalancer->getMaxLag();
 152                         $data[] = array (
 153                                 'host' => $wgShowHostnames ? $host : '',
 154                                 'lag' => $lag);
 155                 }
 156
 157                 $result = $this->getResult();
 158                 $result->setIndexedTagName($data, 'db');
 159                 $result->addValue('query', $property, $data);
 160         }
 161
 162         protected function getAllowedParams() {
 163                 return array (
 164
 165                         'prop' => array (
 166                                 ApiBase :: PARAM_DFLT => 'general',
 167                                 ApiBase :: PARAM_ISMULTI => true,
 168                                 ApiBase :: PARAM_TYPE => array (
 169                                         'general',
 170                                         'namespaces',
 171                                         'interwikimap',
 172                                         'dbrepllag',
 173                                 )),
 174
 175                         'filteriw' => array (
 176                                 ApiBase :: PARAM_TYPE => array (
 177                                         'local',
 178                                         '!local',
 179                                 )),
 180
 181                         'showalldb' => false,
 182                 );
 183         }
 184
 185         protected function getParamDescription() {
 186                 return array (
 187                         'prop' => array (
 188                                 'Which sysinfo properties to get:',
 189                                 ' "general"      - Overall system information',
 190                                 ' "namespaces"   - List of registered namespaces (localized)',
 191                                 ' "interwikimap" - Return interwiki map (optionally filtered)',
 192                                 ' "dbrepllag"    - Returns DB server with the highest replication lag',
 193                         ),
 194                         'filteriw' =>  'Return only local or only nonlocal entries of the interwiki map',
 195                         'showalldb' => 'List all DB servers, not just the one lagging the most',
 196                 );
 197         }
 198
 199         protected function getDescription() {
 200                 return 'Return general information about the site.';
 201         }
 202
 203         protected function getExamples() {
 204                 return array(
 205                         'api.php?action=query&meta=siteinfo&siprop=general|namespaces',
 206                         'api.php?action=query&meta=siteinfo&siprop=interwikimap&sifilteriw=local',
 207                         'api.php?action=query&meta=siteinfo&siprop=dbrepllag&sishowalldb',
 208                         );
 209         }
 210
 211         public function getVersion() {
 212                 return __CLASS__ . ': $Id$';
 213         }
 214 }
 215