includes/api/ApiQueryUserContributions.php

   1 <?php
   2
   3 /*
   4  * Created on Oct 16, 2006
   5  *
   6  * API for MediaWiki 1.8+
   7  *
   8  * Copyright (C) 2006 Yuri Astrakhan <Firstname><Lastname>@gmail.com
   9  *
  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.
  14  *
  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.
  19  *
  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  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  23  * http://www.gnu.org/copyleft/gpl.html
  24  */
  25
  26 if (!defined('MEDIAWIKI')) {
  27         // Eclipse helper - will be ignored in production
  28         require_once ('ApiQueryBase.php');
  29 }
  30
  31 /**
  32  * This query action adds a list of a specified user's contributions to the output.
  33  *
  34  * @ingroup API
  35  */
  36 class ApiQueryContributions extends ApiQueryBase {
  37
  38         public function __construct($query, $moduleName) {
  39                 parent :: __construct($query, $moduleName, 'uc');
  40         }
  41
  42         private $params, $username;
  43         private $fld_ids = false, $fld_title = false, $fld_timestamp = false,
  44                         $fld_comment = false, $fld_flags = false;
  45
  46         public function execute() {
  47
  48                 // Parse some parameters
  49                 $this->params = $this->extractRequestParams();
  50
  51                 $prop = array_flip($this->params['prop']);
  52                 $this->fld_ids = isset($prop['ids']);
  53                 $this->fld_title = isset($prop['title']);
  54                 $this->fld_comment = isset($prop['comment']);
  55                 $this->fld_flags = isset($prop['flags']);
  56                 $this->fld_timestamp = isset($prop['timestamp']);
  57
  58                 // TODO: if the query is going only against the revision table, should this be done?
  59                 $this->selectNamedDB('contributions', DB_SLAVE, 'contributions');
  60                 $db = $this->getDB();
  61
  62                 if(isset($this->params['userprefix']))
  63                 {
  64                         $this->prefixMode = true;
  65                         $this->userprefix = $this->params['userprefix'];
  66                 }
  67                 else
  68                 {
  69                         $this->usernames = array();
  70                         if(!is_array($this->params['user']))
  71                                 $this->params['user'] = array($this->params['user']);
  72                         foreach($this->params['user'] as $u)
  73                                 $this->prepareUsername($u);
  74                         $this->prefixMode = false;
  75                 }
  76                 $this->prepareQuery();
  77
  78                 //Do the actual query.
  79                 $res = $this->select( __METHOD__ );
  80
  81                 //Initialise some variables
  82                 $data = array ();
  83                 $count = 0;
  84                 $limit = $this->params['limit'];
  85
  86                 //Fetch each row
  87                 while ( $row = $db->fetchObject( $res ) ) {
  88                         if (++ $count > $limit) {
  89                                 // We've reached the one extra which shows that there are additional pages to be had. Stop here...
  90                                 $this->setContinueEnumParameter('start', wfTimestamp(TS_ISO_8601, $row->rev_timestamp));
  91                                 break;
  92                         }
  93
  94                         $vals = $this->extractRowInfo($row);
  95                         if ($vals)
  96                                 $data[] = $vals;
  97                 }
  98
  99                 //Free the database record so the connection can get on with other stuff
 100                 $db->freeResult($res);
 101
 102                 //And send the whole shebang out as output.
 103                 $this->getResult()->setIndexedTagName($data, 'item');
 104                 $this->getResult()->addValue('query', $this->getModuleName(), $data);
 105         }
 106
 107         /**
 108          * Validate the 'user' parameter and set the value to compare
 109          * against `revision`.`rev_user_text`
 110          */
 111         private function prepareUsername($user) {
 112                 if( $user ) {
 113                         $name = User::isIP( $user )
 114                                 ? $user
 115                                 : User::getCanonicalName( $user, 'valid' );
 116                         if( $name === false ) {
 117                                 $this->dieUsage( "User name {$user} is not valid", 'param_user' );
 118                         } else {
 119                                 $this->usernames[] = $name;
 120                         }
 121                 } else {
 122                         $this->dieUsage( 'User parameter may not be empty', 'param_user' );
 123                 }
 124         }
 125
 126         /**
 127          * Prepares the query and returns the limit of rows requested
 128          */
 129         private function prepareQuery() {
 130
 131                 //We're after the revision table, and the corresponding page row for
 132                 //anything we retrieve.
 133                 $this->addTables(array('revision', 'page'));
 134                 $this->addWhere('page_id=rev_page');
 135
 136                 $this->addWhereFld('rev_deleted', 0);
 137                 // We only want pages by the specified users.
 138                 if($this->prefixMode)
 139                         $this->addWhere("rev_user_text LIKE '" . $this->getDb()->escapeLike($this->userprefix) . "%'");
 140                 else
 141                         $this->addWhereFld( 'rev_user_text', $this->usernames );
 142                 // ... and in the specified timeframe.
 143                 // Ensure the same sort order for rev_user_text and rev_timestamp
 144                 // so our query is indexed
 145                 $this->addWhereRange('rev_user_text', $this->params['dir'], null, null);
 146                 $this->addWhereRange('rev_timestamp',
 147                         $this->params['dir'], $this->params['start'], $this->params['end'] );
 148                 $this->addWhereFld('page_namespace', $this->params['namespace']);
 149
 150                 $show = $this->params['show'];
 151                 if (!is_null($show)) {
 152                         $show = array_flip($show);
 153                         if (isset ($show['minor']) && isset ($show['!minor']))
 154                                 $this->dieUsage("Incorrect parameter - mutually exclusive values may not be supplied", 'show');
 155
 156                         $this->addWhereIf('rev_minor_edit = 0', isset ($show['!minor']));
 157                         $this->addWhereIf('rev_minor_edit != 0', isset ($show['minor']));
 158                 }
 159                 $this->addOption('LIMIT', $this->params['limit'] + 1);
 160
 161                 // Mandatory fields: timestamp allows request continuation
 162                 // ns+title checks if the user has access rights for this page
 163                 // user_text is necessary if multiple users were specified
 164                 $this->addFields(array(
 165                         'rev_timestamp',
 166                         'page_namespace',
 167                         'page_title',
 168                         'rev_user_text',
 169                         ));
 170
 171                 $this->addFieldsIf('rev_page', $this->fld_ids);
 172                 $this->addFieldsIf('rev_id', $this->fld_ids || $this->fld_flags);
 173                 $this->addFieldsIf('page_latest', $this->fld_flags);
 174                 // $this->addFieldsIf('rev_text_id', $this->fld_ids); // Should this field be exposed?
 175                 $this->addFieldsIf('rev_comment', $this->fld_comment);
 176                 $this->addFieldsIf('rev_minor_edit', $this->fld_flags);
 177                 $this->addFieldsIf('page_is_new', $this->fld_flags);
 178         }
 179
 180         /**
 181          * Extract fields from the database row and append them to a result array
 182          */
 183         private function extractRowInfo($row) {
 184
 185                 $vals = array();
 186
 187                 $vals['user'] = $row->rev_user_text;
 188                 if ($this->fld_ids) {
 189                         $vals['pageid'] = intval($row->rev_page);
 190                         $vals['revid'] = intval($row->rev_id);
 191                         // $vals['textid'] = intval($row->rev_text_id); // todo: Should this field be exposed?
 192                 }
 193
 194                 if ($this->fld_title)
 195                         ApiQueryBase :: addTitleInfo($vals,
 196                                 Title :: makeTitle($row->page_namespace, $row->page_title));
 197
 198                 if ($this->fld_timestamp)
 199                         $vals['timestamp'] = wfTimestamp(TS_ISO_8601, $row->rev_timestamp);
 200
 201                 if ($this->fld_flags) {
 202                         if ($row->page_is_new)
 203                                 $vals['new'] = '';
 204                         if ($row->rev_minor_edit)
 205                                 $vals['minor'] = '';
 206                         if ($row->page_latest == $row->rev_id)
 207                                 $vals['top'] = '';
 208                 }
 209
 210                 if ($this->fld_comment && !empty ($row->rev_comment))
 211                         $vals['comment'] = $row->rev_comment;
 212
 213                 return $vals;
 214         }
 215
 216         public function getAllowedParams() {
 217                 return array (
 218                         'limit' => array (
 219                                 ApiBase :: PARAM_DFLT => 10,
 220                                 ApiBase :: PARAM_TYPE => 'limit',
 221                                 ApiBase :: PARAM_MIN => 1,
 222                                 ApiBase :: PARAM_MAX => ApiBase :: LIMIT_BIG1,
 223                                 ApiBase :: PARAM_MAX2 => ApiBase :: LIMIT_BIG2
 224                         ),
 225                         'start' => array (
 226                                 ApiBase :: PARAM_TYPE => 'timestamp'
 227                         ),
 228                         'end' => array (
 229                                 ApiBase :: PARAM_TYPE => 'timestamp'
 230                         ),
 231                         'user' => array (
 232                                 ApiBase :: PARAM_ISMULTI => true
 233                         ),
 234                         'userprefix' => null,
 235                         'dir' => array (
 236                                 ApiBase :: PARAM_DFLT => 'older',
 237                                 ApiBase :: PARAM_TYPE => array (
 238                                         'newer',
 239                                         'older'
 240                                 )
 241                         ),
 242                         'namespace' => array (
 243                                 ApiBase :: PARAM_ISMULTI => true,
 244                                 ApiBase :: PARAM_TYPE => 'namespace'
 245                         ),
 246                         'prop' => array (
 247                                 ApiBase :: PARAM_ISMULTI => true,
 248                                 ApiBase :: PARAM_DFLT => 'ids|title|timestamp|flags|comment',
 249                                 ApiBase :: PARAM_TYPE => array (
 250                                         'ids',
 251                                         'title',
 252                                         'timestamp',
 253                                         'comment',
 254                                         'flags'
 255                                 )
 256                         ),
 257                         'show' => array (
 258                                 ApiBase :: PARAM_ISMULTI => true,
 259                                 ApiBase :: PARAM_TYPE => array (
 260                                         'minor',
 261                                         '!minor',
 262                                 )
 263                         ),
 264                 );
 265         }
 266
 267         public function getParamDescription() {
 268                 return array (
 269                         'limit' => 'The maximum number of contributions to return.',
 270                         'start' => 'The start timestamp to return from.',
 271                         'end' => 'The end timestamp to return to.',
 272                         'user' => 'The user to retrieve contributions for.',
 273                         'userprefix' => 'Retrieve contibutions for all users whose names begin with this value. Overrides ucuser.',
 274                         'dir' => 'The direction to search (older or newer).',
 275                         'namespace' => 'Only list contributions in these namespaces',
 276                         'prop' => 'Include additional pieces of information',
 277                         'show' => 'Show only items that meet this criteria, e.g. non minor edits only: show=!minor',
 278                 );
 279         }
 280
 281         public function getDescription() {
 282                 return 'Get all edits by a user';
 283         }
 284
 285         protected function getExamples() {
 286                 return array (
 287                         'api.php?action=query&list=usercontribs&ucuser=YurikBot',
 288                         'api.php?action=query&list=usercontribs&ucuserprefix=217.121.114.',
 289                 );
 290         }
 291
 292         public function getVersion() {
 293                 return __CLASS__ . ': $Id$';
 294         }
 295 }