includes/api/ApiQueryLogEvents.php

   1 <?php
   2 /**
   3  * API for MediaWiki 1.8+
   4  *
   5  * Created on Oct 16, 2006
   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  * Query action to List the log events, with optional filtering by various parameters.
  34  *
  35  * @ingroup API
  36  */
  37 class ApiQueryLogEvents extends ApiQueryBase {
  38
  39         public function __construct( $query, $moduleName ) {
  40                 parent::__construct( $query, $moduleName, 'le' );
  41         }
  42
  43         private $fld_ids = false, $fld_title = false, $fld_type = false,
  44                 $fld_action = false, $fld_user = false, $fld_userid = false,
  45                 $fld_timestamp = false, $fld_comment = false, $fld_parsedcomment = false,
  46                 $fld_details = false, $fld_tags = false;
  47
  48         public function execute() {
  49                 $params = $this->extractRequestParams();
  50                 $db = $this->getDB();
  51
  52                 $prop = array_flip( $params['prop'] );
  53
  54                 $this->fld_ids = isset( $prop['ids'] );
  55                 $this->fld_title = isset( $prop['title'] );
  56                 $this->fld_type = isset( $prop['type'] );
  57                 $this->fld_action = isset ( $prop['action'] );
  58                 $this->fld_user = isset( $prop['user'] );
  59                 $this->fld_userid = isset( $prop['userid'] );
  60                 $this->fld_timestamp = isset( $prop['timestamp'] );
  61                 $this->fld_comment = isset( $prop['comment'] );
  62                 $this->fld_parsedcomment = isset ( $prop['parsedcomment'] );
  63                 $this->fld_details = isset( $prop['details'] );
  64                 $this->fld_tags = isset( $prop['tags'] );
  65
  66                 $hideLogs = LogEventsList::getExcludeClause( $db );
  67                 if ( $hideLogs !== false ) {
  68                         $this->addWhere( $hideLogs );
  69                 }
  70
  71                 // Order is significant here
  72                 $this->addTables( array( 'logging', 'user', 'page' ) );
  73                 $this->addOption( 'STRAIGHT_JOIN' );
  74                 $this->addJoinConds( array(
  75                         'user' => array( 'JOIN',
  76                                 'user_id=log_user' ),
  77                         'page' => array( 'LEFT JOIN',
  78                                 array(  'log_namespace=page_namespace',
  79                                         'log_title=page_title' ) ) ) );
  80                 $index = array( 'logging' => 'times' ); // default, may change
  81
  82                 $this->addFields( array(
  83                         'log_type',
  84                         'log_action',
  85                         'log_timestamp',
  86                         'log_deleted',
  87                 ) );
  88
  89                 $this->addFieldsIf( 'log_id', $this->fld_ids );
  90                 $this->addFieldsIf( 'page_id', $this->fld_ids );
  91                 $this->addFieldsIf( 'log_user', $this->fld_user );
  92                 $this->addFieldsIf( 'user_name', $this->fld_user );
  93                 $this->addFieldsIf( 'user_id', $this->fld_userid );
  94                 $this->addFieldsIf( 'log_namespace', $this->fld_title || $this->fld_parsedcomment );
  95                 $this->addFieldsIf( 'log_title', $this->fld_title || $this->fld_parsedcomment );
  96                 $this->addFieldsIf( 'log_comment', $this->fld_comment || $this->fld_parsedcomment );
  97                 $this->addFieldsIf( 'log_params', $this->fld_details );
  98
  99                 if ( $this->fld_tags ) {
 100                         $this->addTables( 'tag_summary' );
 101                         $this->addJoinConds( array( 'tag_summary' => array( 'LEFT JOIN', 'log_id=ts_log_id' ) ) );
 102                         $this->addFields( 'ts_tags' );
 103                 }
 104
 105                 if ( !is_null( $params['tag'] ) ) {
 106                         $this->addTables( 'change_tag' );
 107                         $this->addJoinConds( array( 'change_tag' => array( 'INNER JOIN', array( 'log_id=ct_log_id' ) ) ) );
 108                         $this->addWhereFld( 'ct_tag', $params['tag'] );
 109                         global $wgOldChangeTagsIndex;
 110                         $index['change_tag'] = $wgOldChangeTagsIndex ? 'ct_tag' : 'change_tag_tag_id';
 111                 }
 112
 113                 if ( !is_null( $params['action'] ) ) {
 114                         list( $type, $action ) = explode( '/', $params['action'] );
 115                         $this->addWhereFld( 'log_type', $type );
 116                         $this->addWhereFld( 'log_action', $action );
 117                 }
 118                 else if ( !is_null( $params['type'] ) ) {
 119                         $this->addWhereFld( 'log_type', $params['type'] );
 120                         $index['logging'] = 'type_time';
 121                 }
 122
 123                 $this->addWhereRange( 'log_timestamp', $params['dir'], $params['start'], $params['end'] );
 124
 125                 $limit = $params['limit'];
 126                 $this->addOption( 'LIMIT', $limit + 1 );
 127
 128                 $user = $params['user'];
 129                 if ( !is_null( $user ) ) {
 130                         $userid = User::idFromName( $user );
 131                         if ( !$userid ) {
 132                                 $this->dieUsage( "User name $user not found", 'param_user' );
 133                         }
 134                         $this->addWhereFld( 'log_user', $userid );
 135                         $index['logging'] = 'user_time';
 136                 }
 137
 138                 $title = $params['title'];
 139                 if ( !is_null( $title ) ) {
 140                         $titleObj = Title::newFromText( $title );
 141                         if ( is_null( $titleObj ) ) {
 142                                 $this->dieUsage( "Bad title value '$title'", 'param_title' );
 143                         }
 144                         $this->addWhereFld( 'log_namespace', $titleObj->getNamespace() );
 145                         $this->addWhereFld( 'log_title', $titleObj->getDBkey() );
 146
 147                         // Use the title index in preference to the user index if there is a conflict
 148                         $index['logging'] = is_null( $user ) ? 'page_time' : array( 'page_time', 'user_time' );
 149                 }
 150
 151                 $this->addOption( 'USE INDEX', $index );
 152
 153                 // Paranoia: avoid brute force searches (bug 17342)
 154                 if ( !is_null( $title ) ) {
 155                         $this->addWhere( $db->bitAnd( 'log_deleted', LogPage::DELETED_ACTION ) . ' = 0' );
 156                 }
 157                 if ( !is_null( $user ) ) {
 158                         $this->addWhere( $db->bitAnd( 'log_deleted', LogPage::DELETED_USER ) . ' = 0' );
 159                 }
 160
 161                 $count = 0;
 162                 $res = $this->select( __METHOD__ );
 163                 foreach ( $res as $row ) {
 164                         if ( ++ $count > $limit ) {
 165                                 // We've reached the one extra which shows that there are additional pages to be had. Stop here...
 166                                 $this->setContinueEnumParameter( 'start', wfTimestamp( TS_ISO_8601, $row->log_timestamp ) );
 167                                 break;
 168                         }
 169
 170                         $vals = $this->extractRowInfo( $row );
 171                         if ( !$vals ) {
 172                                 continue;
 173                         }
 174                         $fit = $this->getResult()->addValue( array( 'query', $this->getModuleName() ), null, $vals );
 175                         if ( !$fit ) {
 176                                 $this->setContinueEnumParameter( 'start', wfTimestamp( TS_ISO_8601, $row->log_timestamp ) );
 177                                 break;
 178                         }
 179                 }
 180                 $this->getResult()->setIndexedTagName_internal( array( 'query', $this->getModuleName() ), 'item' );
 181         }
 182
 183         /**
 184          * @static
 185          * @param $result ApiResult
 186          * @param $vals
 187          * @param $params
 188          * @param $type
 189          * @param $ts
 190          * @return array
 191          */
 192         public static function addLogParams( $result, &$vals, $params, $type, $ts ) {
 193                 $params = explode( "\n", $params );
 194                 switch ( $type ) {
 195                         case 'move':
 196                                 if ( isset( $params[0] ) ) {
 197                                         $title = Title::newFromText( $params[0] );
 198                                         if ( $title ) {
 199                                                 $vals2 = array();
 200                                                 ApiQueryBase::addTitleInfo( $vals2, $title, 'new_' );
 201                                                 $vals[$type] = $vals2;
 202                                         }
 203                                 }
 204                                 if ( isset( $params[1] ) && $params[1] ) {
 205                                         $vals[$type]['suppressedredirect'] = '';
 206                                 }
 207                                 $params = null;
 208                                 break;
 209                         case 'patrol':
 210                                 $vals2 = array();
 211                                 list( $vals2['cur'], $vals2['prev'], $vals2['auto'] ) = $params;
 212                                 $vals[$type] = $vals2;
 213                                 $params = null;
 214                                 break;
 215                         case 'rights':
 216                                 $vals2 = array();
 217                                 list( $vals2['old'], $vals2['new'] ) = $params;
 218                                 $vals[$type] = $vals2;
 219                                 $params = null;
 220                                 break;
 221                         case 'block':
 222                                 $vals2 = array();
 223                                 list( $vals2['duration'], $vals2['flags'] ) = $params;
 224
 225                                 // Indefinite blocks have no expiry time
 226                                 if ( Block::parseExpiryInput( $params[0] ) !== Block::infinity() ) {
 227                                         $vals2['expiry'] = wfTimestamp( TS_ISO_8601,
 228                                                 strtotime( $params[0], wfTimestamp( TS_UNIX, $ts ) ) );
 229                                 }
 230                                 $vals[$type] = $vals2;
 231                                 $params = null;
 232                                 break;
 233                 }
 234                 if ( !is_null( $params ) ) {
 235                         $result->setIndexedTagName( $params, 'param' );
 236                         $vals = array_merge( $vals, $params );
 237                 }
 238                 return $vals;
 239         }
 240
 241         private function extractRowInfo( $row ) {
 242                 $vals = array();
 243
 244                 if ( $this->fld_ids ) {
 245                         $vals['logid'] = intval( $row->log_id );
 246                         $vals['pageid'] = intval( $row->page_id );
 247                 }
 248
 249                 if ( $this->fld_title || $this->fld_parsedcomment ) {
 250                         $title = Title::makeTitle( $row->log_namespace, $row->log_title );
 251                 }
 252
 253                 if ( $this->fld_title ) {
 254                         if ( LogEventsList::isDeleted( $row, LogPage::DELETED_ACTION ) ) {
 255                                 $vals['actionhidden'] = '';
 256                         } else {
 257                                 ApiQueryBase::addTitleInfo( $vals, $title );
 258                         }
 259                 }
 260
 261                 if ( $this->fld_type || $this->fld_action ) {
 262                         $vals['type'] = $row->log_type;
 263                         $vals['action'] = $row->log_action;
 264                 }
 265
 266                 if ( $this->fld_details && $row->log_params !== '' ) {
 267                         if ( LogEventsList::isDeleted( $row, LogPage::DELETED_ACTION ) ) {
 268                                 $vals['actionhidden'] = '';
 269                         } else {
 270                                 self::addLogParams(
 271                                         $this->getResult(), $vals,
 272                                         $row->log_params, $row->log_type,
 273                                         $row->log_timestamp
 274                                 );
 275                         }
 276                 }
 277
 278                 if ( $this->fld_user || $this->fld_userid ) {
 279                         if ( LogEventsList::isDeleted( $row, LogPage::DELETED_USER ) ) {
 280                                 $vals['userhidden'] = '';
 281                         } else {
 282                                 if ( $this->fld_user ) {
 283                                         $vals['user'] = $row->user_name;
 284                                 }
 285                                 if ( $this->fld_userid ) {
 286                                         $vals['userid'] = $row->user_id;
 287                                 }
 288
 289                                 if ( !$row->log_user ) {
 290                                         $vals['anon'] = '';
 291                                 }
 292                         }
 293                 }
 294                 if ( $this->fld_timestamp ) {
 295                         $vals['timestamp'] = wfTimestamp( TS_ISO_8601, $row->log_timestamp );
 296                 }
 297
 298                 if ( ( $this->fld_comment || $this->fld_parsedcomment ) && isset( $row->log_comment ) ) {
 299                         if ( LogEventsList::isDeleted( $row, LogPage::DELETED_COMMENT ) ) {
 300                                 $vals['commenthidden'] = '';
 301                         } else {
 302                                 if ( $this->fld_comment ) {
 303                                         $vals['comment'] = $row->log_comment;
 304                                 }
 305
 306                                 if ( $this->fld_parsedcomment ) {
 307                                         global $wgUser;
 308                                         $vals['parsedcomment'] = $wgUser->getSkin()->formatComment( $row->log_comment, $title );
 309                                 }
 310                         }
 311                 }
 312
 313                 if ( $this->fld_tags ) {
 314                         if ( $row->ts_tags ) {
 315                                 $tags = explode( ',', $row->ts_tags );
 316                                 $this->getResult()->setIndexedTagName( $tags, 'tag' );
 317                                 $vals['tags'] = $tags;
 318                         } else {
 319                                 $vals['tags'] = array();
 320                         }
 321                 }
 322
 323                 return $vals;
 324         }
 325
 326         public function getCacheMode( $params ) {
 327                 if ( !is_null( $params['prop'] ) && in_array( 'parsedcomment', $params['prop'] ) ) {
 328                         // formatComment() calls wfMsg() among other things
 329                         return 'anon-public-user-private';
 330                 } else {
 331                         return 'public';
 332                 }
 333         }
 334
 335         public function getAllowedParams() {
 336                 global $wgLogTypes, $wgLogActions;
 337                 return array(
 338                         'prop' => array(
 339                                 ApiBase::PARAM_ISMULTI => true,
 340                                 ApiBase::PARAM_DFLT => 'ids|title|type|user|timestamp|comment|details',
 341                                 ApiBase::PARAM_TYPE => array(
 342                                         'ids',
 343                                         'title',
 344                                         'type',
 345                                         'user',
 346                                         'userid',
 347                                         'timestamp',
 348                                         'comment',
 349                                         'parsedcomment',
 350                                         'details',
 351                                         'tags'
 352                                 )
 353                         ),
 354                         'type' => array(
 355                                 ApiBase::PARAM_TYPE => $wgLogTypes
 356                         ),
 357                         'action' => array(
 358                                 ApiBase::PARAM_TYPE => array_keys( $wgLogActions )
 359                         ),
 360                         'start' => array(
 361                                 ApiBase::PARAM_TYPE => 'timestamp'
 362                         ),
 363                         'end' => array(
 364                                 ApiBase::PARAM_TYPE => 'timestamp'
 365                         ),
 366                         'dir' => array(
 367                                 ApiBase::PARAM_DFLT => 'older',
 368                                 ApiBase::PARAM_TYPE => array(
 369                                         'newer',
 370                                         'older'
 371                                 )
 372                         ),
 373                         'user' => null,
 374                         'title' => null,
 375                         'tag' => null,
 376                         'limit' => array(
 377                                 ApiBase::PARAM_DFLT => 10,
 378                                 ApiBase::PARAM_TYPE => 'limit',
 379                                 ApiBase::PARAM_MIN => 1,
 380                                 ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
 381                                 ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2
 382                         )
 383                 );
 384         }
 385
 386         public function getParamDescription() {
 387                 return array(
 388                         'prop' => array(
 389                                 'Which properties to get',
 390                                 ' ids            - Adds the id of the log event',
 391                                 ' title          - Adds the title of the page for the log event',
 392                                 ' type           - Adds the type of log event',
 393                                 ' user           - Adds the user responsible for the log event',
 394                                 ' userid         - Adds the user id who was responsible for the log event',
 395                                 ' timestamp      - Adds the timestamp for the event',
 396                                 ' comment        - Adds the comment of the event',
 397                                 ' parsedcomment  - Adds the parsed comment of the event',
 398                                 ' details        - Lists addtional details about the event',
 399                                 ' tags           - Lists tags for the event',
 400                         ),
 401                         'type' => 'Filter log entries to only this type(s)',
 402                         'action' => "Filter log actions to only this type. Overrides {$this->getModulePrefix()}type",
 403                         'start' => 'The timestamp to start enumerating from',
 404                         'end' => 'The timestamp to end enumerating',
 405                         'dir' => 'In which direction to enumerate',
 406                         'user' => 'Filter entries to those made by the given user',
 407                         'title' => 'Filter entries to those related to a page',
 408                         'limit' => 'How many total event entries to return',
 409                         'tag' => 'Only list event entries tagged with this tag',
 410                 );
 411         }
 412
 413         public function getDescription() {
 414                 return 'Get events from logs';
 415         }
 416
 417         public function getPossibleErrors() {
 418                 return array_merge( parent::getPossibleErrors(), array(
 419                         array( 'code' => 'param_user', 'info' => 'User name $user not found' ),
 420                         array( 'code' => 'param_title', 'info' => 'Bad title value \'title\'' ),
 421                 ) );
 422         }
 423
 424         protected function getExamples() {
 425                 return array(
 426                         'api.php?action=query&list=logevents'
 427                 );
 428         }
 429
 430         public function getVersion() {
 431                 return __CLASS__ . ': $Id$';
 432         }
 433 }