includes/api/ApiQueryAllmessages.php

   1 <?php
   2 /**
   3  * API for MediaWiki 1.8+
   4  *
   5  * Created on Dec 1, 2007
   6  *
   7  * Copyright © 2006 Yuri Astrakhan <Firstname><Lastname>@gmail.com
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  22  * http://www.gnu.org/copyleft/gpl.html
  23  *
  24  * @file
  25  */
  26
  27 if ( !defined( 'MEDIAWIKI' ) ) {
  28         // Eclipse helper - will be ignored in production
  29         require_once( 'ApiQueryBase.php' );
  30 }
  31
  32 /**
  33  * A query action to return messages from site message cache
  34  *
  35  * @ingroup API
  36  */
  37 class ApiQueryAllmessages extends ApiQueryBase {
  38
  39         public function __construct( $query, $moduleName ) {
  40                 parent::__construct( $query, $moduleName, 'am' );
  41         }
  42
  43         public function execute() {
  44                 $params = $this->extractRequestParams();
  45
  46                 global $wgLang;
  47
  48                 $oldLang = null;
  49                 if ( !is_null( $params['lang'] ) ) {
  50                         $oldLang = $wgLang; // Keep $wgLang for restore later
  51                         $wgLang = Language::factory( $params['lang'] );
  52                 }
  53
  54                 $prop = array_flip( (array)$params['prop'] );
  55
  56                 // Determine which messages should we print
  57                 if ( in_array( '*', $params['messages'] ) ) {
  58                         $message_names = array_keys( Language::getMessagesFor( 'en' ) );
  59                         sort( $message_names );
  60                         $messages_target = $message_names;
  61                 } else {
  62                         $messages_target = $params['messages'];
  63                 }
  64
  65                 // Filter messages
  66                 if ( isset( $params['filter'] ) ) {
  67                         $messages_filtered = array();
  68                         foreach ( $messages_target as $message ) {
  69                                 // !== is used because filter can be at the beginning of the string
  70                                 if ( strpos( $message, $params['filter'] ) !== false ) {
  71                                         $messages_filtered[] = $message;
  72                                 }
  73                         }
  74                         $messages_target = $messages_filtered;
  75                 }
  76
  77                 // Get all requested messages and print the result
  78                 $skip = !is_null( $params['from'] );
  79                 $useto = !is_null( $params['to'] );
  80                 $result = $this->getResult();
  81                 foreach ( $messages_target as $message ) {
  82                         // Skip all messages up to $params['from']
  83                         if ( $skip && $message === $params['from'] ) {
  84                                 $skip = false;
  85                         }
  86
  87                         if( $useto && $message > $params['to'] ) {
  88                                 break;
  89                         }
  90
  91                         if ( !$skip ) {
  92                                 $a = array( 'name' => $message );
  93                                 $args = null;
  94                                 if ( isset( $params['args'] ) && count( $params['args'] ) != 0 ) {
  95                                         $args = $params['args'];
  96                                 }
  97                                 // Check if the parser is enabled:
  98                                 if ( $params['enableparser'] ) {
  99                                         $msg = wfMsgExt( $message, array( 'parsemag' ), $args );
 100                                 } elseif ( $args ) {
 101                                         $msgString = wfMsgGetKey( $message, true, false, false );
 102                                         $msg = wfMsgReplaceArgs( $msgString, $args );
 103                                 } else {
 104                                         $msg = wfMsgGetKey( $message, true, false, false );
 105                                 }
 106
 107                                 if ( wfEmptyMsg( $message, $msg ) ) {
 108                                         $a['missing'] = '';
 109                                 } else {
 110                                         ApiResult::setContent( $a, $msg );
 111                                         if ( isset( $prop['default'] ) ) {
 112                                                 $default = wfMsgGetKey( $message, false, false, false );
 113                                                 if ( $default !== $msg ) {
 114                                                         if ( wfEmptyMsg( $message, $default ) ) {
 115                                                                 $a['defaultmissing'] = '';
 116                                                         } else {
 117                                                                 $a['default'] = $default;
 118                                                         }
 119                                                 }
 120                                         }
 121                                 }
 122                                 $fit = $result->addValue( array( 'query', $this->getModuleName() ), null, $a );
 123                                 if ( !$fit ) {
 124                                         $this->setContinueEnumParameter( 'from', $message );
 125                                         break;
 126                                 }
 127                         }
 128                 }
 129                 $result->setIndexedTagName_internal( array( 'query', $this->getModuleName() ), 'message' );
 130
 131                 if ( !is_null( $oldLang ) ) {
 132                         $wgLang = $oldLang; // Restore $oldLang
 133                 }
 134         }
 135
 136         public function getCacheMode( $params ) {
 137                 if ( is_null( $params['lang'] ) ) {
 138                         // Language not specified, will be fetched from preferences
 139                         return 'anon-public-user-private';
 140                 } elseif ( $params['enableparser'] ) {
 141                         // User-specific parser options will be used
 142                         return 'anon-public-user-private';
 143                 } else {
 144                         // OK to cache
 145                         return 'public';
 146                 }
 147         }
 148
 149         public function getAllowedParams() {
 150                 return array(
 151                         'messages' => array(
 152                                 ApiBase::PARAM_DFLT => '*',
 153                                 ApiBase::PARAM_ISMULTI => true,
 154                         ),
 155                         'prop' => array(
 156                                 ApiBase::PARAM_ISMULTI => true,
 157                                 ApiBase::PARAM_TYPE => array(
 158                                         'default'
 159                                 )
 160                         ),
 161                         'enableparser' => false,
 162                         'args' => array(
 163                                 ApiBase::PARAM_ISMULTI => true
 164                         ),
 165                         'filter' => array(),
 166                         'lang' => null,
 167                         'from' => null,
 168                         'to' => null,
 169                 );
 170         }
 171
 172         public function getParamDescription() {
 173                 return array(
 174                         'messages' => 'Which messages to output. "*" means all messages',
 175                         'prop' => 'Which properties to get',
 176                         'enableparser' => array( 'Set to enable parser, will preprocess the wikitext of message',
 177                                                           'Will substitute magic words, handle templates etc.' ),
 178                         'args' => 'Arguments to be substituted into message',
 179                         'filter' => 'Return only messages that contain this string',
 180                         'lang' => 'Return messages in this language',
 181                         'from' => 'Return messages starting at this message',
 182                         'to' => 'Return messages ending at this message',
 183                 );
 184         }
 185
 186         public function getDescription() {
 187                 return 'Return messages from this site';
 188         }
 189
 190         protected function getExamples() {
 191                 return array(
 192                         'api.php?action=query&meta=allmessages&amfilter=ipb-',
 193                         'api.php?action=query&meta=allmessages&ammessages=august|mainpage&amlang=de',
 194                 );
 195         }
 196
 197         public function getVersion() {
 198                 return __CLASS__ . ': $Id$';
 199         }
 200 }