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  * @addtogroup 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 = $this->getDB();
  61
  62
  63                 if(isset($this->params['userprefix']))
  64                 {
  65                         $this->prefixMode = true;
  66                         $this->userprefix = $this->params['userprefix'];
  67                 }
  68                 else
  69                 {
  70                         $this->usernames = array();
  71                         if(!is_array($this->params['user']))
  72                                 $this->params['user'] = array($this->params['user']);
  73                         foreach($this->params['user'] as $u)
  74                                 $this->prepareUsername($u);
  75                         $this->prefixMode = false;
  76                 }
  77                 $this->prepareQuery();
  78
  79                 //Do the actual query.
  80                 $res = $this->select( __METHOD__ );
  81
  82                 //Initialise some variables
  83                 $data = array ();
  84                 $count = 0;
  85                 $limit = $this->params['limit'];
  86
  87                 //Fetch each row
  88                 while ( $row = $db->fetchObject( $res ) ) {
  89                         if (++ $count > $limit) {
  90                                 // We've reached the one extra which shows that there are additional pages to be had. Stop here...
  91                                 $this->setContinueEnumParameter('start', wfTimestamp(TS_ISO_8601, $row->rev_timestamp));
  92                                 break;
  93                         }
  94
  95                         $vals = $this->extractRowInfo($row);
  96                         if ($vals)
  97                                 $data[] = $vals;
  98                 }
  99
 100                 //Free the database record so the connection can get on with other stuff
 101                 $db->freeResult($res);
 102
 103                 //And send the whole shebang out as output.
 104                 $this->getResult()->setIndexedTagName($data, 'item');
 105                 $this->getResult()->addValue('query', $this->getModuleName(), $data);
 106         }
 107
 108         /**
 109          * Validate the 'user' parameter and set the value to compare
 110          * against `revision`.`rev_user_text`
 111          */
 112         private function prepareUsername($user) {
 113                 if( $user ) {
 114                         $name = User::isIP( $user )
 115                                 ? $user
 116                                 : User::getCanonicalName( $user, 'valid' );
 117                         if( $name === false ) {
 118                                 $this->dieUsage( "User name {$user} is not valid", 'param_user' );
 119                         } else {
 120                                 $this->usernames[] = $name;
 121                         }
 122                 } else {
 123                         $this->dieUsage( 'User parameter may not be empty', 'param_user' );
 124                 }
 125         }
 126
 127         /**
 128          * Prepares the query and returns the limit of rows requested
 129          */
 130         private function prepareQuery() {
 131
 132                 //We're after the revision table, and the corresponding page row for
 133                 //anything we retrieve.
 134                 list ($tbl_page, $tbl_revision) = $this->getDB()->tableNamesN('page', 'revision');
 135                 $this->addTables("$tbl_revision LEFT OUTER JOIN $tbl_page ON page_id=rev_page");
 136
 137                 $this->addWhereFld('rev_deleted', 0);
 138                 // We only want pages by the specified users.
 139                 if($this->prefixMode)
 140                         $this->addWhere("rev_user_text LIKE '" . $this->getDb()->escapeLike($this->userprefix) . "%'");
 141                 else
 142                         $this->addWhereFld( 'rev_user_text', $this->usernames );
 143                 // ... and in the specified timeframe.
 144                 // Ensure the same sort order for rev_user_text and rev_timestamp
 145                 // so our query is indexed
 146                 $this->addWhereRange('rev_user_text', $this->params['dir'], null, null);
 147                 $this->addWhereRange('rev_timestamp',
 148                         $this->params['dir'], $this->params['start'], $this->params['end'] );
 149                 $this->addWhereFld('page_namespace', $this->params['namespace']);
 150
 151                 $show = $this->params['show'];
 152                 if (!is_null($show)) {
 153                         $show = array_flip($show);
 154                         if (isset ($show['minor']) && isset ($show['!minor']))
 155                                 $this->dieUsage("Incorrect parameter - mutually exclusive values may not be supplied", 'show');
 156
 157                         $this->addWhereIf('rev_minor_edit = 0', isset ($show['!minor']));
 158                         $this->addWhereIf('rev_minor_edit != 0', isset ($show['minor']));
 159                 }
 160                 $this->addOption('LIMIT', $this->params['limit'] + 1);
 161
 162                 // Mandatory fields: timestamp allows request continuation
 163                 // ns+title checks if the user has access rights for this page
 164                 // user_text is necessary if multiple users were specified
 165                 $this->addFields(array(
 166                         'rev_timestamp',
 167                         'page_namespace',
 168                         'page_title',
 169                         'rev_user_text',
 170                         ));
 171
 172                 $this->addFieldsIf('rev_page', $this->fld_ids);
 173                 $this->addFieldsIf('rev_id', $this->fld_ids);
 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                                 $vals['minor'] = '';
 206                 }
 207
 208                 if ($this->fld_comment && !empty ($row->rev_comment))
 209                         $vals['comment'] = $row->rev_comment;
 210
 211                 return $vals;
 212         }
 213
 214         public function getAllowedParams() {
 215                 return array (
 216                         'limit' => array (
 217                                 ApiBase :: PARAM_DFLT => 10,
 218                                 ApiBase :: PARAM_TYPE => 'limit',
 219                                 ApiBase :: PARAM_MIN => 1,
 220                                 ApiBase :: PARAM_MAX => ApiBase :: LIMIT_BIG1,
 221                                 ApiBase :: PARAM_MAX2 => ApiBase :: LIMIT_BIG2
 222                         ),
 223                         'start' => array (
 224                                 ApiBase :: PARAM_TYPE => 'timestamp'
 225                         ),
 226                         'end' => array (
 227                                 ApiBase :: PARAM_TYPE => 'timestamp'
 228                         ),
 229                         'user' => array (
 230                                 ApiBase :: PARAM_ISMULTI => true
 231                         ),
 232                         'userprefix' => null,
 233                         'dir' => array (
 234                                 ApiBase :: PARAM_DFLT => 'older',
 235                                 ApiBase :: PARAM_TYPE => array (
 236                                         'newer',
 237                                         'older'
 238                                 )
 239                         ),
 240                         'namespace' => array (
 241                                 ApiBase :: PARAM_ISMULTI => true,
 242                                 ApiBase :: PARAM_TYPE => 'namespace'
 243                         ),
 244                         'prop' => array (
 245                                 ApiBase :: PARAM_ISMULTI => true,
 246                                 ApiBase :: PARAM_DFLT => 'ids|title|timestamp|flags|comment',
 247                                 ApiBase :: PARAM_TYPE => array (
 248                                         'ids',
 249                                         'title',
 250                                         'timestamp',
 251                                         'comment',
 252                                         'flags'
 253                                 )
 254                         ),
 255                         'show' => array (
 256                                 ApiBase :: PARAM_ISMULTI => true,
 257                                 ApiBase :: PARAM_TYPE => array (
 258                                         'minor',
 259                                         '!minor',
 260                                 )
 261                         ),
 262                 );
 263         }
 264
 265         public function getParamDescription() {
 266                 return array (
 267                         'limit' => 'The maximum number of contributions to return.',
 268                         'start' => 'The start timestamp to return from.',
 269                         'end' => 'The end timestamp to return to.',
 270                         'user' => 'The user to retrieve contributions for.',
 271                         'userprefix' => 'Retrieve contibutions for all users whose names begin with this value. Overrides ucuser.',
 272                         'dir' => 'The direction to search (older or newer).',
 273                         'namespace' => 'Only list contributions in these namespaces',
 274                         'prop' => 'Include additional pieces of information',
 275                         'show' => 'Show only items that meet this criteria, e.g. non minor edits only: show=!minor',
 276                 );
 277         }
 278
 279         public function getDescription() {
 280                 return 'Get all edits by a user';
 281         }
 282
 283         protected function getExamples() {
 284                 return array (
 285                         'api.php?action=query&list=usercontribs&ucuser=YurikBot',
 286                         'api.php?action=query&list=usercontribs&ucuserprefix=217.121.114.',
 287                 );
 288         }
 289
 290         public function getVersion() {
 291                 return __CLASS__ . ': $Id$';
 292         }
 293 }