4 * Created on Oct 19, 2006
6 * API for MediaWiki 1.8+
8 * Copyright © 2006 Yuri Astrakhan <Firstname><Lastname>@gmail.com
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.
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.
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 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
23 * http://www.gnu.org/copyleft/gpl.html
26 if ( !defined( 'MEDIAWIKI' ) ) {
27 // Eclipse helper - will be ignored in production
28 require_once( 'ApiQueryBase.php' );
32 * A query action to enumerate the recent changes that were done to the wiki.
33 * Various filters are supported.
37 class ApiQueryRecentChanges
extends ApiQueryBase
{
39 public function __construct( $query, $moduleName ) {
40 parent
::__construct( $query, $moduleName, 'rc' );
43 private $fld_comment = false, $fld_parsedcomment = false, $fld_user = false, $fld_flags = false,
44 $fld_timestamp = false, $fld_title = false, $fld_ids = false,
47 * Get an array mapping token names to their handler functions.
48 * The prototype for a token function is func($pageid, $title, $rc)
49 * it should return a token or false (permission denied)
50 * @return array(tokenname => function)
52 protected function getTokenFunctions() {
53 // Don't call the hooks twice
54 if ( isset( $this->tokenFunctions
) ) {
55 return $this->tokenFunctions
;
58 // If we're in JSON callback mode, no tokens can be obtained
59 if ( !is_null( $this->getMain()->getRequest()->getVal( 'callback' ) ) ) {
63 $this->tokenFunctions
= array(
64 'patrol' => array( 'ApiQueryRecentChanges', 'getPatrolToken' )
66 wfRunHooks( 'APIQueryRecentChangesTokens', array( &$this->tokenFunctions
) );
67 return $this->tokenFunctions
;
70 public static function getPatrolToken( $pageid, $title, $rc ) {
72 if ( !$wgUser->useRCPatrol() && ( !$wgUser->useNPPatrol() ||
73 $rc->getAttribute( 'rc_type' ) != RC_NEW
) )
78 // The patrol token is always the same, let's exploit that
79 static $cachedPatrolToken = null;
80 if ( !is_null( $cachedPatrolToken ) ) {
81 return $cachedPatrolToken;
84 $cachedPatrolToken = $wgUser->editToken();
85 return $cachedPatrolToken;
89 * Sets internal state to include the desired properties in the output.
90 * @param $prop associative array of properties, only keys are used here
92 public function initProperties( $prop ) {
93 $this->fld_comment
= isset( $prop['comment'] );
94 $this->fld_parsedcomment
= isset( $prop['parsedcomment'] );
95 $this->fld_user
= isset( $prop['user'] );
96 $this->fld_flags
= isset( $prop['flags'] );
97 $this->fld_timestamp
= isset( $prop['timestamp'] );
98 $this->fld_title
= isset( $prop['title'] );
99 $this->fld_ids
= isset( $prop['ids'] );
100 $this->fld_sizes
= isset( $prop['sizes'] );
101 $this->fld_redirect
= isset( $prop['redirect'] );
102 $this->fld_patrolled
= isset( $prop['patrolled'] );
103 $this->fld_loginfo
= isset( $prop['loginfo'] );
104 $this->fld_tags
= isset( $prop['tags'] );
108 * Generates and outputs the result of this query based upon the provided parameters.
110 public function execute() {
111 /* Get the parameters of the request. */
112 $params = $this->extractRequestParams();
114 /* Build our basic query. Namely, something along the lines of:
115 * SELECT * FROM recentchanges WHERE rc_timestamp > $start
116 * AND rc_timestamp < $end AND rc_namespace = $namespace
117 * AND rc_deleted = '0'
119 $this->addTables( 'recentchanges' );
120 $index = array( 'recentchanges' => 'rc_timestamp' ); // May change
121 $this->addWhereRange( 'rc_timestamp', $params['dir'], $params['start'], $params['end'] );
122 $this->addWhereFld( 'rc_namespace', $params['namespace'] );
123 $this->addWhereFld( 'rc_deleted', 0 );
125 if ( !is_null( $params['type'] ) ) {
126 $this->addWhereFld( 'rc_type', $this->parseRCType( $params['type'] ) );
129 if ( !is_null( $params['show'] ) ) {
130 $show = array_flip( $params['show'] );
132 /* Check for conflicting parameters. */
133 if ( ( isset( $show['minor'] ) && isset( $show['!minor'] ) )
134 ||
( isset( $show['bot'] ) && isset( $show['!bot'] ) )
135 ||
( isset( $show['anon'] ) && isset( $show['!anon'] ) )
136 ||
( isset( $show['redirect'] ) && isset( $show['!redirect'] ) )
137 ||
( isset( $show['patrolled'] ) && isset( $show['!patrolled'] ) )
140 $this->dieUsageMsg( array( 'show' ) );
145 if ( isset( $show['patrolled'] ) ||
isset( $show['!patrolled'] ) ) {
146 $this->getMain()->setVaryCookie();
147 if ( !$wgUser->useRCPatrol() && !$wgUser->useNPPatrol() ) {
148 $this->dieUsage( 'You need the patrol right to request the patrolled flag', 'permissiondenied' );
152 /* Add additional conditions to query depending upon parameters. */
153 $this->addWhereIf( 'rc_minor = 0', isset( $show['!minor'] ) );
154 $this->addWhereIf( 'rc_minor != 0', isset( $show['minor'] ) );
155 $this->addWhereIf( 'rc_bot = 0', isset( $show['!bot'] ) );
156 $this->addWhereIf( 'rc_bot != 0', isset( $show['bot'] ) );
157 $this->addWhereIf( 'rc_user = 0', isset( $show['anon'] ) );
158 $this->addWhereIf( 'rc_user != 0', isset( $show['!anon'] ) );
159 $this->addWhereIf( 'rc_patrolled = 0', isset( $show['!patrolled'] ) );
160 $this->addWhereIf( 'rc_patrolled != 0', isset( $show['patrolled'] ) );
161 $this->addWhereIf( 'page_is_redirect = 1', isset( $show['redirect'] ) );
163 // Don't throw log entries out the window here
164 $this->addWhereIf( 'page_is_redirect = 0 OR page_is_redirect IS NULL', isset( $show['!redirect'] ) );
167 if ( !is_null( $params['user'] ) && !is_null( $param['excludeuser'] ) ) {
168 $this->dieUsage( 'user and excludeuser cannot be used together', 'user-excludeuser' );
171 if ( !is_null( $params['user'] ) ) {
172 $this->addWhereFld( 'rc_user_text', $params['user'] );
173 $index['recentchanges'] = 'rc_user_text';
176 if ( !is_null( $params['excludeuser'] ) ) {
177 // We don't use the rc_user_text index here because
178 // * it would require us to sort by rc_user_text before rc_timestamp
179 // * the != condition doesn't throw out too many rows anyway
180 $this->addWhere( 'rc_user_text != ' . $this->getDB()->addQuotes( $params['excludeuser'] ) );
183 /* Add the fields we're concerned with to our query. */
184 $this->addFields( array(
194 /* Determine what properties we need to display. */
195 if ( !is_null( $params['prop'] ) ) {
196 $prop = array_flip( $params['prop'] );
198 /* Set up internal members based upon params. */
199 $this->initProperties( $prop );
202 if ( $this->fld_patrolled
&& !$wgUser->useRCPatrol() && !$wgUser->useNPPatrol() )
204 $this->dieUsage( 'You need the patrol right to request the patrolled flag', 'permissiondenied' );
207 /* Add fields to our query if they are specified as a needed parameter. */
208 $this->addFieldsIf( 'rc_id', $this->fld_ids
);
209 $this->addFieldsIf( 'rc_this_oldid', $this->fld_ids
);
210 $this->addFieldsIf( 'rc_last_oldid', $this->fld_ids
);
211 $this->addFieldsIf( 'rc_comment', $this->fld_comment ||
$this->fld_parsedcomment
);
212 $this->addFieldsIf( 'rc_user', $this->fld_user
);
213 $this->addFieldsIf( 'rc_user_text', $this->fld_user
);
214 $this->addFieldsIf( 'rc_minor', $this->fld_flags
);
215 $this->addFieldsIf( 'rc_bot', $this->fld_flags
);
216 $this->addFieldsIf( 'rc_new', $this->fld_flags
);
217 $this->addFieldsIf( 'rc_old_len', $this->fld_sizes
);
218 $this->addFieldsIf( 'rc_new_len', $this->fld_sizes
);
219 $this->addFieldsIf( 'rc_patrolled', $this->fld_patrolled
);
220 $this->addFieldsIf( 'rc_logid', $this->fld_loginfo
);
221 $this->addFieldsIf( 'rc_log_type', $this->fld_loginfo
);
222 $this->addFieldsIf( 'rc_log_action', $this->fld_loginfo
);
223 $this->addFieldsIf( 'rc_params', $this->fld_loginfo
);
224 if ( $this->fld_redirect ||
isset( $show['redirect'] ) ||
isset( $show['!redirect'] ) )
226 $this->addTables( 'page' );
227 $this->addJoinConds( array( 'page' => array( 'LEFT JOIN', array( 'rc_namespace=page_namespace', 'rc_title=page_title' ) ) ) );
228 $this->addFields( 'page_is_redirect' );
232 if ( $this->fld_tags
) {
233 $this->addTables( 'tag_summary' );
234 $this->addJoinConds( array( 'tag_summary' => array( 'LEFT JOIN', array( 'rc_id=ts_rc_id' ) ) ) );
235 $this->addFields( 'ts_tags' );
238 if ( !is_null( $params['tag'] ) ) {
239 $this->addTables( 'change_tag' );
240 $this->addJoinConds( array( 'change_tag' => array( 'INNER JOIN', array( 'rc_id=ct_rc_id' ) ) ) );
241 $this->addWhereFld( 'ct_tag' , $params['tag'] );
242 global $wgOldChangeTagsIndex;
243 $index['change_tag'] = $wgOldChangeTagsIndex ?
'ct_tag' : 'change_tag_tag_id';
246 $this->token
= $params['token'];
247 $this->addOption( 'LIMIT', $params['limit'] +
1 );
248 $this->addOption( 'USE INDEX', $index );
251 /* Perform the actual query. */
252 $res = $this->select( __METHOD__
);
254 /* Iterate through the rows, adding data extracted from them to our query result. */
255 foreach ( $res as $row ) {
256 if ( ++
$count > $params['limit'] ) {
257 // We've reached the one extra which shows that there are additional pages to be had. Stop here...
258 $this->setContinueEnumParameter( 'start', wfTimestamp( TS_ISO_8601
, $row->rc_timestamp
) );
262 /* Extract the data from a single row. */
263 $vals = $this->extractRowInfo( $row );
265 /* Add that row's data to our final output. */
269 $fit = $this->getResult()->addValue( array( 'query', $this->getModuleName() ), null, $vals );
271 $this->setContinueEnumParameter( 'start', wfTimestamp( TS_ISO_8601
, $row->rc_timestamp
) );
276 /* Format the result */
277 $this->getResult()->setIndexedTagName_internal( array( 'query', $this->getModuleName() ), 'rc' );
281 * Extracts from a single sql row the data needed to describe one recent change.
283 * @param $row The row from which to extract the data.
284 * @return An array mapping strings (descriptors) to their respective string values.
287 public function extractRowInfo( $row ) {
288 /* If page was moved somewhere, get the title of the move target. */
289 $movedToTitle = false;
290 if ( isset( $row->rc_moved_to_title
) && $row->rc_moved_to_title
!== '' )
292 $movedToTitle = Title
::makeTitle( $row->rc_moved_to_ns
, $row->rc_moved_to_title
);
295 /* Determine the title of the page that has been changed. */
296 $title = Title
::makeTitle( $row->rc_namespace
, $row->rc_title
);
298 /* Our output data. */
301 $type = intval( $row->rc_type
);
303 /* Determine what kind of change this was. */
306 $vals['type'] = 'edit';
309 $vals['type'] = 'new';
312 $vals['type'] = 'move';
315 $vals['type'] = 'log';
317 case RC_MOVE_OVER_REDIRECT
:
318 $vals['type'] = 'move over redirect';
321 $vals['type'] = $type;
324 /* Create a new entry in the result for the title. */
325 if ( $this->fld_title
) {
326 ApiQueryBase
::addTitleInfo( $vals, $title );
327 if ( $movedToTitle ) {
328 ApiQueryBase
::addTitleInfo( $vals, $movedToTitle, 'new_' );
332 /* Add ids, such as rcid, pageid, revid, and oldid to the change's info. */
333 if ( $this->fld_ids
) {
334 $vals['rcid'] = intval( $row->rc_id
);
335 $vals['pageid'] = intval( $row->rc_cur_id
);
336 $vals['revid'] = intval( $row->rc_this_oldid
);
337 $vals['old_revid'] = intval( $row->rc_last_oldid
);
340 /* Add user data and 'anon' flag, if use is anonymous. */
341 if ( $this->fld_user
) {
342 $vals['user'] = $row->rc_user_text
;
343 if ( !$row->rc_user
) {
348 /* Add flags, such as new, minor, bot. */
349 if ( $this->fld_flags
) {
350 if ( $row->rc_bot
) {
353 if ( $row->rc_new
) {
356 if ( $row->rc_minor
) {
361 /* Add sizes of each revision. (Only available on 1.10+) */
362 if ( $this->fld_sizes
) {
363 $vals['oldlen'] = intval( $row->rc_old_len
);
364 $vals['newlen'] = intval( $row->rc_new_len
);
367 /* Add the timestamp. */
368 if ( $this->fld_timestamp
) {
369 $vals['timestamp'] = wfTimestamp( TS_ISO_8601
, $row->rc_timestamp
);
372 /* Add edit summary / log summary. */
373 if ( $this->fld_comment
&& isset( $row->rc_comment
) ) {
374 $vals['comment'] = $row->rc_comment
;
377 if ( $this->fld_parsedcomment
&& isset( $row->rc_comment
) ) {
379 $this->getMain()->setVaryCookie();
380 $vals['parsedcomment'] = $wgUser->getSkin()->formatComment( $row->rc_comment
, $title );
383 if ( $this->fld_redirect
) {
384 if ( $row->page_is_redirect
) {
385 $vals['redirect'] = '';
389 /* Add the patrolled flag */
390 if ( $this->fld_patrolled
&& $row->rc_patrolled
== 1 ) {
391 $vals['patrolled'] = '';
394 if ( $this->fld_loginfo
&& $row->rc_type
== RC_LOG
) {
395 $vals['logid'] = intval( $row->rc_logid
);
396 $vals['logtype'] = $row->rc_log_type
;
397 $vals['logaction'] = $row->rc_log_action
;
398 ApiQueryLogEvents
::addLogParams(
400 $vals, $row->rc_params
,
401 $row->rc_log_type
, $row->rc_timestamp
405 if ( $this->fld_tags
) {
406 if ( $row->ts_tags
) {
407 $tags = explode( ',', $row->ts_tags
);
408 $this->getResult()->setIndexedTagName( $tags, 'tag' );
409 $vals['tags'] = $tags;
411 $vals['tags'] = array();
415 if ( !is_null( $this->token
) ) {
416 // Don't cache tokens
417 $this->getMain()->setCachePrivate();
419 $tokenFunctions = $this->getTokenFunctions();
420 foreach ( $this->token
as $t ) {
421 $val = call_user_func( $tokenFunctions[$t], $row->rc_cur_id
,
422 $title, RecentChange
::newFromRow( $row ) );
423 if ( $val === false ) {
424 $this->setWarning( "Action '$t' is not allowed for the current user" );
426 $vals[$t . 'token'] = $val;
434 private function parseRCType( $type ) {
435 if ( is_array( $type ) ) {
437 foreach ( $type as $t ) {
438 $retval[] = $this->parseRCType( $t );
452 public function getAllowedParams() {
455 ApiBase
::PARAM_TYPE
=> 'timestamp'
458 ApiBase
::PARAM_TYPE
=> 'timestamp'
461 ApiBase
::PARAM_DFLT
=> 'older',
462 ApiBase
::PARAM_TYPE
=> array(
467 'namespace' => array(
468 ApiBase
::PARAM_ISMULTI
=> true,
469 ApiBase
::PARAM_TYPE
=> 'namespace'
472 ApiBase
::PARAM_TYPE
=> 'user'
474 'excludeuser' => array(
475 ApiBase
::PARAM_TYPE
=> 'user'
479 ApiBase
::PARAM_ISMULTI
=> true,
480 ApiBase
::PARAM_DFLT
=> 'title|timestamp|ids',
481 ApiBase
::PARAM_TYPE
=> array(
497 ApiBase
::PARAM_TYPE
=> array_keys( $this->getTokenFunctions() ),
498 ApiBase
::PARAM_ISMULTI
=> true
501 ApiBase
::PARAM_ISMULTI
=> true,
502 ApiBase
::PARAM_TYPE
=> array(
516 ApiBase
::PARAM_DFLT
=> 10,
517 ApiBase
::PARAM_TYPE
=> 'limit',
518 ApiBase
::PARAM_MIN
=> 1,
519 ApiBase
::PARAM_MAX
=> ApiBase
::LIMIT_BIG1
,
520 ApiBase
::PARAM_MAX2
=> ApiBase
::LIMIT_BIG2
523 ApiBase
::PARAM_ISMULTI
=> true,
524 ApiBase
::PARAM_TYPE
=> array(
533 public function getParamDescription() {
535 'start' => 'The timestamp to start enumerating from',
536 'end' => 'The timestamp to end enumerating',
537 'dir' => 'In which direction to enumerate',
538 'namespace' => 'Filter log entries to only this namespace(s)',
539 'user' => 'Only list changes by this user',
540 'excludeuser' => 'Don\'t list changes by this user',
542 'Include additional pieces of information',
543 ' user - Adds the user responsible for the edit and tags if they are an IP',
544 ' comment - Adds the comment for the edit',
545 ' parsedcomment - Adds the parsed comment for the edit',
546 ' flags - Adds flags for the edit',
547 ' timestamp - Adds timestamp of the edit',
548 ' title - Adds the page title of the edit',
549 ' ids - Adds the page id, recent changes id and the new and old revision id',
550 ' sizes - Adds the new and old page length in bytes',
551 ' redirect - Tags edit if page is a redirect',
552 ' patrolled - Tags edits have have been patrolled',
553 ' loginfo - Adds log information (logid, logtype, etc) to log entries',
554 ' tags - Lists tags for the entry',
556 'token' => 'Which tokens to obtain for each change',
558 'Show only items that meet this criteria.',
559 "For example, to see only minor edits done by logged-in users, set {$this->getModulePrefix()}show=minor|!anon"
561 'type' => 'Which types of changes to show',
562 'limit' => 'How many total changes to return',
563 'tag' => 'Only list changes tagged with this tag',
567 public function getDescription() {
568 return 'Enumerate recent changes';
571 public function getPossibleErrors() {
572 return array_merge( parent
::getPossibleErrors(), array(
574 array( 'code' => 'permissiondenied', 'info' => 'You need the patrol right to request the patrolled flag' ),
575 array( 'code' => 'user-excludeuser', 'info' => 'user and excludeuser cannot be used together' ),
579 protected function getExamples() {
581 'api.php?action=query&list=recentchanges'
585 public function getVersion() {
586 return __CLASS__
. ': $Id$';