includes/api/ApiQueryAllmessages.php

   1 <?php
   2 /**
   3  *
   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                 if ( is_null( $params['lang'] ) ) {
  47                         global $wgLang;
  48                         $langObj = $wgLang;
  49                 } else {
  50                         $langObj = Language::factory( $params['lang'] );
  51                 }
  52
  53                 if ( $params['enableparser'] ) {
  54                         if ( !is_null( $params['title'] ) ) {
  55                                 $title = Title::newFromText( $params['title'] );
  56                                 if ( !$title ) {
  57                                         $this->dieUsageMsg( array( 'invalidtitle', $params['title'] ) );
  58                                 }
  59                         } else {
  60                                 $title = Title::newFromText( 'API' );
  61                         }
  62                 }
  63
  64                 $prop = array_flip( (array)$params['prop'] );
  65
  66                 // Determine which messages should we print
  67                 if ( in_array( '*', $params['messages'] ) ) {
  68                         $message_names = Language::getMessageKeysFor( $langObj->getCode() );
  69                         if ( $params['includelocal'] ) {
  70                                 global $wgLanguageCode;
  71                                 $message_names = array_unique( array_merge(
  72                                         $message_names,
  73                                         // Pass in the content language code so we get local messages that have a
  74                                         // MediaWiki:msgkey page. We might theoretically miss messages that have no
  75                                         // MediaWiki:msgkey page but do have a MediaWiki:msgkey/lang page, but that's
  76                                         // just a stupid case.
  77                                         MessageCache::singleton()->getAllMessageKeys( $wgLanguageCode )
  78                                 ) );
  79                         }
  80                         sort( $message_names );
  81                         $messages_target = $message_names;
  82                 } else {
  83                         $messages_target = $params['messages'];
  84                 }
  85
  86                 // Filter messages that have the specified prefix
  87                 // Because we sorted the message array earlier, they will appear in a clump:
  88                 if ( isset( $params['prefix'] ) ) {
  89                         $skip = false;
  90                         $messages_filtered = array();
  91                         foreach ( $messages_target as $message ) {
  92                                 // === 0: must be at beginning of string (position 0)
  93                                 if ( strpos( $message, $params['prefix'] ) === 0 ) {
  94                                         if( !$skip ) {
  95                                                 $skip = true;
  96                                         }
  97                                         $messages_filtered[] = $message;
  98                                 } elseif ( $skip ) {
  99                                         break;
 100                                 }
 101                         }
 102                         $messages_target = $messages_filtered;
 103                 }
 104
 105                 // Filter messages that contain specified string
 106                 if ( isset( $params['filter'] ) ) {
 107                         $messages_filtered = array();
 108                         foreach ( $messages_target as $message ) {
 109                                 // !== is used because filter can be at the beginning of the string
 110                                 if ( strpos( $message, $params['filter'] ) !== false ) {
 111                                         $messages_filtered[] = $message;
 112                                 }
 113                         }
 114                         $messages_target = $messages_filtered;
 115                 }
 116
 117                 // Whether we have any sort of message customisation filtering
 118                 $customiseFilterEnabled = $params['customised'] !== 'all';
 119                 if ( $customiseFilterEnabled ) {
 120                         global $wgContLang;
 121                         $lang = $langObj->getCode();
 122
 123                         $customisedMessages = AllmessagesTablePager::getCustomisedStatuses(
 124                                 array_map( array( $langObj, 'ucfirst'), $messages_target ), $lang, $lang != $wgContLang->getCode() );
 125
 126                         $customised = $params['customised'] === 'modified';
 127                 }
 128
 129                 // Get all requested messages and print the result
 130                 $skip = !is_null( $params['from'] );
 131                 $useto = !is_null( $params['to'] );
 132                 $result = $this->getResult();
 133                 foreach ( $messages_target as $message ) {
 134                         // Skip all messages up to $params['from']
 135                         if ( $skip && $message === $params['from'] ) {
 136                                 $skip = false;
 137                         }
 138
 139                         if ( $useto && $message > $params['to'] ) {
 140                                 break;
 141                         }
 142
 143                         if ( !$skip ) {
 144                                 $a = array( 'name' => $message );
 145                                 $args = array();
 146                                 if ( isset( $params['args'] ) && count( $params['args'] ) != 0 ) {
 147                                         $args = $params['args'];
 148                                 }
 149
 150                                 if ( $customiseFilterEnabled ) {
 151                                         $messageIsCustomised = isset( $customisedMessages['pages'][ $langObj->ucfirst( $message ) ] );
 152                                         if ( $customised === $messageIsCustomised ) {
 153                                                 if ( $customised ) {
 154                                                         $a['customised'] = '';
 155                                                 }
 156                                         } else {
 157                                                 continue;
 158                                         }
 159                                 }
 160
 161                                 $msg = wfMessage( $message, $args )->inLanguage( $langObj );
 162
 163                                 if ( !$msg->exists() ) {
 164                                         $a['missing'] = '';
 165                                 } else {
 166                                         // Check if the parser is enabled:
 167                                         if ( $params['enableparser'] ) {
 168                                                 $msgString = $msg->title( $title )->text();
 169                                         } else {
 170                                                 $msgString = $msg->plain();
 171                                         }
 172                                         if ( !$params['nocontent'] ) {
 173                                                 ApiResult::setContent( $a, $msgString );
 174                                         }
 175                                         if ( isset( $prop['default'] ) ) {
 176                                                 $default = wfMessage( $message )->inLanguage( $langObj )->useDatabase( false );
 177                                                 if ( !$default->exists() ) {
 178                                                         $a['defaultmissing'] = '';
 179                                                 } elseif ( $default->plain() != $msgString ) {
 180                                                         $a['default'] = $default->plain();
 181                                                 }
 182                                         }
 183                                 }
 184                                 $fit = $result->addValue( array( 'query', $this->getModuleName() ), null, $a );
 185                                 if ( !$fit ) {
 186                                         $this->setContinueEnumParameter( 'from', $message );
 187                                         break;
 188                                 }
 189                         }
 190                 }
 191                 $result->setIndexedTagName_internal( array( 'query', $this->getModuleName() ), 'message' );
 192         }
 193
 194         public function getCacheMode( $params ) {
 195                 if ( is_null( $params['lang'] ) ) {
 196                         // Language not specified, will be fetched from preferences
 197                         return 'anon-public-user-private';
 198                 } elseif ( $params['enableparser'] ) {
 199                         // User-specific parser options will be used
 200                         return 'anon-public-user-private';
 201                 } else {
 202                         // OK to cache
 203                         return 'public';
 204                 }
 205         }
 206
 207         public function getAllowedParams() {
 208                 return array(
 209                         'messages' => array(
 210                                 ApiBase::PARAM_DFLT => '*',
 211                                 ApiBase::PARAM_ISMULTI => true,
 212                         ),
 213                         'prop' => array(
 214                                 ApiBase::PARAM_ISMULTI => true,
 215                                 ApiBase::PARAM_TYPE => array(
 216                                         'default'
 217                                 )
 218                         ),
 219                         'enableparser' => false,
 220                         'nocontent' => false,
 221                         'includelocal' => false,
 222                         'args' => array(
 223                                 ApiBase::PARAM_ISMULTI => true,
 224                                 ApiBase::PARAM_ALLOW_DUPLICATES => true,
 225                         ),
 226                         'filter' => array(),
 227                         'customised' => array(
 228                                 ApiBase::PARAM_DFLT => 'all',
 229                                 ApiBase::PARAM_TYPE => array(
 230                                         'all',
 231                                         'modified',
 232                                         'unmodified'
 233                                 )
 234                         ),
 235                         'lang' => null,
 236                         'from' => null,
 237                         'to' => null,
 238                         'title' => null,
 239                         'prefix' => null,
 240                 );
 241         }
 242
 243         public function getParamDescription() {
 244                 return array(
 245                         'messages' => 'Which messages to output. "*" (default) means all messages',
 246                         'prop' => 'Which properties to get',
 247                         'enableparser' => array( 'Set to enable parser, will preprocess the wikitext of message',
 248                                                         'Will substitute magic words, handle templates etc.' ),
 249                         'nocontent' => 'If set, do not include the content of the messages in the output.',
 250                         'includelocal' => array( "Also include local messages, i.e. messages that don't exist in the software but do exist as a MediaWiki: page.",
 251                                                         "This lists all MediaWiki: pages, so it will also list those that aren't 'really' messages such as Common.js",
 252                         ),
 253                         'title' => 'Page name to use as context when parsing message (for enableparser option)',
 254                         'args' => 'Arguments to be substituted into message',
 255                         'prefix' => 'Return messages with this prefix',
 256                         'filter' => 'Return only messages with names that contain this string',
 257                         'customised' => 'Return only messages in this customisation state',
 258                         'lang' => 'Return messages in this language',
 259                         'from' => 'Return messages starting at this message',
 260                         'to' => 'Return messages ending at this message',
 261                 );
 262         }
 263
 264         public function getDescription() {
 265                 return 'Return messages from this site';
 266         }
 267
 268         public function getExamples() {
 269                 return array(
 270                         'api.php?action=query&meta=allmessages&amprefix=ipb-',
 271                         'api.php?action=query&meta=allmessages&ammessages=august|mainpage&amlang=de',
 272                 );
 273         }
 274
 275         public function getHelpUrls() {
 276                 return 'http://www.mediawiki.org/wiki/API:Meta#allmessages_.2F_am';
 277         }
 278
 279         public function getVersion() {
 280                 return __CLASS__ . ': $Id$';
 281         }
 282 }