(bug 19004) Added support for tags to the API. Patch by Matthew Britton.
[lhc/web/wiklou.git] / includes / api / ApiQueryLogEvents.php
index 0ae5384..ca91d92 100644 (file)
@@ -30,8 +30,8 @@ if (!defined('MEDIAWIKI')) {
 
 /**
  * Query action to List the log events, with optional filtering by various parameters.
- *  
- * @addtogroup API
+ *
+ * @ingroup API
  */
 class ApiQueryLogEvents extends ApiQueryBase {
 
@@ -40,128 +40,250 @@ class ApiQueryLogEvents extends ApiQueryBase {
        }
 
        public function execute() {
-               $limit = $type = $start = $end = $dir = $user = $title = null;
-               extract($this->extractRequestParams());
-
+               $params = $this->extractRequestParams();
                $db = $this->getDB();
 
+               $prop = $params['prop'];
+               $this->fld_ids = in_array('ids', $prop);
+               $this->fld_title = in_array('title', $prop);
+               $this->fld_type = in_array('type', $prop);
+               $this->fld_user = in_array('user', $prop);
+               $this->fld_timestamp = in_array('timestamp', $prop);
+               $this->fld_comment = in_array('comment', $prop);
+               $this->fld_details = in_array('details', $prop);
+               $this->fld_tags = in_array('tags', $prop);
+
                list($tbl_logging, $tbl_page, $tbl_user) = $db->tableNamesN('logging', 'page', 'user');
 
+               $hideLogs = LogEventsList::getExcludeClause($db);
+               if($hideLogs !== false)
+                       $this->addWhere($hideLogs);
+
+               // Order is significant here
+               $this->addTables(array('logging', 'user', 'page'));
                $this->addOption('STRAIGHT_JOIN');
-               $this->addTables("$tbl_logging LEFT OUTER JOIN $tbl_page ON " .
-               "log_namespace=page_namespace AND log_title=page_title " .
-               "INNER JOIN $tbl_user ON user_id=log_user");
+               $this->addJoinConds(array(
+                       'user' => array('JOIN',
+                               'user_id=log_user'),
+                       'page' => array('LEFT JOIN',
+                               array(  'log_namespace=page_namespace',
+                                       'log_title=page_title'))));
+               $index = 'times'; // default, may change
 
                $this->addFields(array (
                        'log_type',
                        'log_action',
                        'log_timestamp',
-                       'log_user',
-                       'user_name',
-                       'log_namespace',
-                       'log_title',
-                       'page_id',
-                       'log_comment',
-                       'log_params'
+                       'log_deleted',
                ));
 
-               $this->addWhereFld('log_type', $type);
-               $this->addWhereRange('log_timestamp', $dir, $start, $end);
+               $this->addFieldsIf('log_id', $this->fld_ids);
+               $this->addFieldsIf('page_id', $this->fld_ids);
+               $this->addFieldsIf('log_user', $this->fld_user);
+               $this->addFieldsIf('user_name', $this->fld_user);
+               $this->addFieldsIf('log_namespace', $this->fld_title);
+               $this->addFieldsIf('log_title', $this->fld_title);
+               $this->addFieldsIf('log_comment', $this->fld_comment);
+               $this->addFieldsIf('log_params', $this->fld_details);
+               
+               if($this->fld_tags || !is_null($params['tag'])) {
+                       $this->addTables('tag_summary');
+                       $this->addJoinConds(array('tag_summary' => array('LEFT JOIN', 'log_id=ts_log_id')));
+                       $this->addFields('ts_tags');
+               }
+               
+               if( !is_null($params['tag']) ) {
+                       $this->addWhereFld('ts_tags', $params['tag']);
+               }
+               
+               if( !is_null($params['type']) ) {
+                       $this->addWhereFld('log_type', $params['type']);
+                       $index = 'type_time';
+               }
+               
+               $this->addWhereRange('log_timestamp', $params['dir'], $params['start'], $params['end']);
+
+               $limit = $params['limit'];
                $this->addOption('LIMIT', $limit +1);
 
+               $user = $params['user'];
                if (!is_null($user)) {
-                       $userid = $db->selectField('user', 'user_id', array (
-                               'user_name' => $user
-                       ));
+                       $userid = User::idFromName($user);
                        if (!$userid)
                                $this->dieUsage("User name $user not found", 'param_user');
                        $this->addWhereFld('log_user', $userid);
+                       $index = 'user_time';
                }
 
+               $title = $params['title'];
                if (!is_null($title)) {
                        $titleObj = Title :: newFromText($title);
                        if (is_null($titleObj))
                                $this->dieUsage("Bad title value '$title'", 'param_title');
                        $this->addWhereFld('log_namespace', $titleObj->getNamespace());
                        $this->addWhereFld('log_title', $titleObj->getDBkey());
+
+                       // Use the title index in preference to the user index if there is a conflict
+                       $index = is_null($user) ? 'page_time' : array('page_time','user_time');
+               }
+
+               $this->addOption( 'USE INDEX', array( 'logging' => $index ) );
+
+               // Paranoia: avoid brute force searches (bug 17342)
+               if (!is_null($title)) {
+                       $this->addWhere($db->bitAnd('log_deleted', LogPage::DELETED_ACTION) . ' = 0');
+               }
+               if (!is_null($user)) {
+                       $this->addWhere($db->bitAnd('log_deleted', LogPage::DELETED_USER) . ' = 0');
                }
 
-               $data = array ();
                $count = 0;
                $res = $this->select(__METHOD__);
                while ($row = $db->fetchObject($res)) {
                        if (++ $count > $limit) {
                                // We've reached the one extra which shows that there are additional pages to be had. Stop here...
-                               $this->setContinueEnumParameter('start', $row->log_timestamp);
+                               $this->setContinueEnumParameter('start', wfTimestamp(TS_ISO_8601, $row->log_timestamp));
                                break;
                        }
 
                        $vals = $this->extractRowInfo($row);
-                       if($vals)
-                               $data[] = $vals;
+                       if(!$vals)
+                               continue;
+                       $fit = $this->getResult()->addValue(array('query', $this->getModuleName()), null, $vals);
+                       if(!$fit)
+                       {
+                               $this->setContinueEnumParameter('start', wfTimestamp(TS_ISO_8601, $row->log_timestamp));
+                               break;
+                       }
                }
                $db->freeResult($res);
 
-               $this->getResult()->setIndexedTagName($data, 'item');
-               $this->getResult()->addValue('query', $this->getModuleName(), $data);
+               $this->getResult()->setIndexedTagName_internal(array('query', $this->getModuleName()), 'item');
+       }
+       
+       public static function addLogParams($result, &$vals, $params, $type, $ts) {
+               $params = explode("\n", $params);
+               switch ($type) {
+                       case 'move':
+                               if (isset ($params[0])) {
+                                       $title = Title :: newFromText($params[0]);
+                                       if ($title) {
+                                               $vals2 = array();
+                                               ApiQueryBase :: addTitleInfo($vals2, $title, "new_");
+                                               $vals[$type] = $vals2;
+                                       }
+                               }
+                               if (isset ($params[1]) && $params[1]) {
+                                       $vals[$type]['suppressedredirect'] = '';
+                               } 
+                               $params = null;
+                               break;
+                       case 'patrol':
+                               $vals2 = array();
+                               list( $vals2['cur'], $vals2['prev'], $vals2['auto'] ) = $params;
+                               $vals[$type] = $vals2;
+                               $params = null;
+                               break;
+                       case 'rights':
+                               $vals2 = array();
+                               list( $vals2['old'], $vals2['new'] ) = $params;
+                               $vals[$type] = $vals2;
+                               $params = null;
+                               break;
+                       case 'block':
+                               $vals2 = array();
+                               list( $vals2['duration'], $vals2['flags'] ) = $params;
+                               $vals2['expiry'] = wfTimestamp(TS_ISO_8601,
+                                               strtotime($params[0], wfTimestamp(TS_UNIX, $ts)));
+                               $vals[$type] = $vals2;
+                               $params = null;
+                               break;
+               }
+               if (!is_null($params)) {
+                       $result->setIndexedTagName($params, 'param');
+                       $vals = array_merge($vals, $params);
+               }
+               return $vals;
        }
 
        private function extractRowInfo($row) {
-               $title = Title :: makeTitle($row->log_namespace, $row->log_title);
-               if (!$title->userCanRead())
-                       return false;
-
                $vals = array();
 
-               $vals['pageid'] = intval($row->page_id);
-               ApiQueryBase :: addTitleInfo($vals, $title);
-               $vals['type'] = $row->log_type;
-               $vals['action'] = $row->log_action;
-
-               if ($row->log_params !== '') {
-                       $params = explode("\n", $row->log_params);
-                       switch ($row->log_type) {
-                               case 'move': 
-                                       if (isset ($params[0])) {
-                                               $title = Title :: newFromText($params[0]);
-                                               if ($title) {
-                                                       ApiQueryBase :: addTitleInfo($vals, $title, "new_");
-                                                       $params = null;
-                                               }
-                                       }
-                                       break;
-                               case 'patrol':
-                                       list( $cur, $prev, $auto ) = $params;
-                                       $vals['patrol_prev'] = $prev;
-                                       $vals['patrol_cur'] = $cur;
-                                       $vals['patrol_auto'] = $auto;
-                                       $params = null;
-                                       break;
+               if ($this->fld_ids) {
+                       $vals['logid'] = intval($row->log_id);
+                       $vals['pageid'] = intval($row->page_id);
+               }
+
+               if ($this->fld_title) {
+                       if (LogEventsList::isDeleted($row, LogPage::DELETED_ACTION)) {
+                               $vals['actionhidden'] = '';
+                       } else {
+                               $title = Title :: makeTitle($row->log_namespace, $row->log_title);
+                               ApiQueryBase :: addTitleInfo($vals, $title);
                        }
-                       
-                       if (!empty ($params)) {
-                               $this->getResult()->setIndexedTagName($params, 'param');
-                               $vals = array_merge($vals, $params);
+               }
+
+               if ($this->fld_type) {
+                       $vals['type'] = $row->log_type;
+                       $vals['action'] = $row->log_action;
+               }
+
+               if ($this->fld_details && $row->log_params !== '') {
+                       if (LogEventsList::isDeleted($row, LogPage::DELETED_ACTION)) {
+                               $vals['actionhidden'] = '';
+                       } else {
+                               self::addLogParams($this->getResult(), $vals,
+                                       $row->log_params, $row->log_type,
+                                       $row->log_timestamp);
                        }
                }
 
-               $vals['user'] = $row->user_name;
-               if(!$row->log_user)
-                       $vals['anon'] = '';
-               $vals['timestamp'] = wfTimestamp(TS_ISO_8601, $row->log_timestamp);
+               if ($this->fld_user) {
+                       if (LogEventsList::isDeleted($row, LogPage::DELETED_USER)) {
+                               $vals['userhidden'] = '';
+                       } else {
+                               $vals['user'] = $row->user_name;
+                               if(!$row->log_user)
+                                       $vals['anon'] = '';
+                       }
+               }
+               if ($this->fld_timestamp) {
+                       $vals['timestamp'] = wfTimestamp(TS_ISO_8601, $row->log_timestamp);
+               }
+               if ($this->fld_comment && isset($row->log_comment)) {
+                       if (LogEventsList::isDeleted($row, LogPage::DELETED_COMMENT)) {
+                               $vals['commenthidden'] = '';
+                       } else {
+                               $vals['comment'] = $row->log_comment;
+                       }
+               }
 
-               if (!empty ($row->log_comment))
-                       $vals['comment'] = $row->log_comment;
-                       
+               if ($this->fld_tags && isset($row->ts_tags)) {
+                       $vals['tags'] = $row->ts_tags;
+               }
+               
                return $vals;
        }
 
 
-       protected function getAllowedParams() {
+       public function getAllowedParams() {
                global $wgLogTypes;
                return array (
-                       'type' => array (
+                       'prop' => array (
                                ApiBase :: PARAM_ISMULTI => true,
+                               ApiBase :: PARAM_DFLT => 'ids|title|type|user|timestamp|comment|details',
+                               ApiBase :: PARAM_TYPE => array (
+                                       'ids',
+                                       'title',
+                                       'type',
+                                       'user',
+                                       'timestamp',
+                                       'comment',
+                                       'details',
+                                       'tags'
+                               )
+                       ),
+                       'type' => array (
                                ApiBase :: PARAM_TYPE => $wgLogTypes
                        ),
                        'start' => array (
@@ -179,6 +301,7 @@ class ApiQueryLogEvents extends ApiQueryBase {
                        ),
                        'user' => null,
                        'title' => null,
+                       'tag' => null,
                        'limit' => array (
                                ApiBase :: PARAM_DFLT => 10,
                                ApiBase :: PARAM_TYPE => 'limit',
@@ -189,19 +312,21 @@ class ApiQueryLogEvents extends ApiQueryBase {
                );
        }
 
-       protected function getParamDescription() {
+       public function getParamDescription() {
                return array (
+                       'prop' => 'Which properties to get',
                        'type' => 'Filter log entries to only this type(s)',
                        'start' => 'The timestamp to start enumerating from.',
                        'end' => 'The timestamp to end enumerating.',
                        'dir' => 'In which direction to enumerate.',
                        'user' => 'Filter entries to those made by the given user.',
                        'title' => 'Filter entries to those related to a page.',
+                       'tag' => 'Only list entries with this tag',
                        'limit' => 'How many total event entries to return.'
                );
        }
 
-       protected function getDescription() {
+       public function getDescription() {
                return 'Get events from logs.';
        }
 
@@ -215,4 +340,3 @@ class ApiQueryLogEvents extends ApiQueryBase {
                return __CLASS__ . ': $Id$';
        }
 }
-?>