includes/api/ApiQueryUsers.php

   1 <?php
   2 /**
   3  *
   4  *
   5  * Created on July 30, 2007
   6  *
   7  * Copyright © 2007 Roan Kattouw <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 /**
  28  * Query module to get information about a list of users
  29  *
  30  * @ingroup API
  31  */
  32 class ApiQueryUsers extends ApiQueryBase {
  33
  34         private $tokenFunctions, $prop;
  35
  36         public function __construct( $query, $moduleName ) {
  37                 parent::__construct( $query, $moduleName, 'us' );
  38         }
  39
  40         /**
  41          * Get an array mapping token names to their handler functions.
  42          * The prototype for a token function is func($user)
  43          * it should return a token or false (permission denied)
  44          * @return Array tokenname => function
  45          */
  46         protected function getTokenFunctions() {
  47                 // Don't call the hooks twice
  48                 if ( isset( $this->tokenFunctions ) ) {
  49                         return $this->tokenFunctions;
  50                 }
  51
  52                 // If we're in JSON callback mode, no tokens can be obtained
  53                 if ( !is_null( $this->getMain()->getRequest()->getVal( 'callback' ) ) ) {
  54                         return array();
  55                 }
  56
  57                 $this->tokenFunctions = array(
  58                         'userrights' => array( 'ApiQueryUsers', 'getUserrightsToken' ),
  59                 );
  60                 wfRunHooks( 'APIQueryUsersTokens', array( &$this->tokenFunctions ) );
  61                 return $this->tokenFunctions;
  62         }
  63
  64          /**
  65           * @param $user User
  66           * @return String
  67           */
  68         public static function getUserrightsToken( $user ) {
  69                 global $wgUser;
  70                 // Since the permissions check for userrights is non-trivial,
  71                 // don't bother with it here
  72                 return $wgUser->getEditToken( $user->getName() );
  73         }
  74
  75         public function execute() {
  76                 $params = $this->extractRequestParams();
  77
  78                 if ( !is_null( $params['prop'] ) ) {
  79                         $this->prop = array_flip( $params['prop'] );
  80                 } else {
  81                         $this->prop = array();
  82                 }
  83
  84                 $users = (array)$params['users'];
  85                 $goodNames = $done = array();
  86                 $result = $this->getResult();
  87                 // Canonicalize user names
  88                 foreach ( $users as $u ) {
  89                         $n = User::getCanonicalName( $u );
  90                         if ( $n === false || $n === '' ) {
  91                                 $vals = array( 'name' => $u, 'invalid' => '' );
  92                                 $fit = $result->addValue( array( 'query', $this->getModuleName() ),
  93                                                 null, $vals );
  94                                 if ( !$fit ) {
  95                                         $this->setContinueEnumParameter( 'users',
  96                                                         implode( '|', array_diff( $users, $done ) ) );
  97                                         $goodNames = array();
  98                                         break;
  99                                 }
 100                                 $done[] = $u;
 101                         } else {
 102                                 $goodNames[] = $n;
 103                         }
 104                 }
 105
 106                 $result = $this->getResult();
 107
 108                 if ( count( $goodNames ) ) {
 109                         $this->addTables( 'user' );
 110                         $this->addFields( '*' );
 111                         $this->addWhereFld( 'user_name', $goodNames );
 112
 113                         if ( isset( $this->prop['groups'] ) || isset( $this->prop['rights'] ) ) {
 114                                 $this->addTables( 'user_groups' );
 115                                 $this->addJoinConds( array( 'user_groups' => array( 'LEFT JOIN', 'ug_user=user_id' ) ) );
 116                                 $this->addFields( 'ug_group' );
 117                         }
 118
 119                         $this->showHiddenUsersAddBlockInfo( isset( $this->prop['blockinfo'] ) );
 120
 121                         $data = array();
 122                         $res = $this->select( __METHOD__ );
 123
 124                         foreach ( $res as $row ) {
 125                                 $user = User::newFromRow( $row );
 126                                 $name = $user->getName();
 127
 128                                 $data[$name]['userid'] = $user->getId();
 129                                 $data[$name]['name'] = $name;
 130
 131                                 if ( isset( $this->prop['editcount'] ) ) {
 132                                         $data[$name]['editcount'] = intval( $user->getEditCount() );
 133                                 }
 134
 135                                 if ( isset( $this->prop['registration'] ) ) {
 136                                         $data[$name]['registration'] = wfTimestampOrNull( TS_ISO_8601, $user->getRegistration() );
 137                                 }
 138
 139                                 if ( isset( $this->prop['groups'] ) ) {
 140                                         if ( !isset( $data[$name]['groups'] ) ) {
 141                                                 $data[$name]['groups'] = self::getAutoGroups( $user );
 142                                         }
 143
 144                                         if ( !is_null( $row->ug_group ) ) {
 145                                                 // This row contains only one group, others will be added from other rows
 146                                                 $data[$name]['groups'][] = $row->ug_group;
 147                                         }
 148                                 }
 149
 150                                 if ( isset( $this->prop['implicitgroups'] ) && !isset( $data[$name]['implicitgroups'] ) ) {
 151                                         $data[$name]['implicitgroups'] =  self::getAutoGroups( $user );
 152                                 }
 153
 154                                 if ( isset( $this->prop['rights'] ) ) {
 155                                         if ( !isset( $data[$name]['rights'] ) ) {
 156                                                 $data[$name]['rights'] = User::getGroupPermissions( $user->getAutomaticGroups() );
 157                                         }
 158
 159                                         if ( !is_null( $row->ug_group ) ) {
 160                                                 $data[$name]['rights'] = array_unique( array_merge( $data[$name]['rights'],
 161                                                         User::getGroupPermissions( array( $row->ug_group ) ) ) );
 162                                         }
 163                                 }
 164                                 if ( $row->ipb_deleted ) {
 165                                         $data[$name]['hidden'] = '';
 166                                 }
 167                                 if ( isset( $this->prop['blockinfo'] ) && !is_null( $row->ipb_by_text ) ) {
 168                                         $data[$name]['blockedby'] = $row->ipb_by_text;
 169                                         $data[$name]['blockreason'] = $row->ipb_reason;
 170                                         $data[$name]['blockexpiry'] = $row->ipb_expiry;
 171                                 }
 172
 173                                 if ( isset( $this->prop['emailable'] ) && $user->canReceiveEmail() ) {
 174                                         $data[$name]['emailable'] = '';
 175                                 }
 176
 177                                 if ( isset( $this->prop['gender'] ) ) {
 178                                         $gender = $user->getOption( 'gender' );
 179                                         if ( strval( $gender ) === '' ) {
 180                                                 $gender = 'unknown';
 181                                         }
 182                                         $data[$name]['gender'] = $gender;
 183                                 }
 184
 185                                 if ( !is_null( $params['token'] ) ) {
 186                                         $tokenFunctions = $this->getTokenFunctions();
 187                                         foreach ( $params['token'] as $t ) {
 188                                                 $val = call_user_func( $tokenFunctions[$t], $user );
 189                                                 if ( $val === false ) {
 190                                                         $this->setWarning( "Action '$t' is not allowed for the current user" );
 191                                                 } else {
 192                                                         $data[$name][$t . 'token'] = $val;
 193                                                 }
 194                                         }
 195                                 }
 196                         }
 197                 }
 198
 199                 // Second pass: add result data to $retval
 200                 foreach ( $goodNames as $u ) {
 201                         if ( !isset( $data[$u] ) ) {
 202                                 $data[$u] = array( 'name' => $u );
 203                                 $urPage = new UserrightsPage;
 204                                 $iwUser = $urPage->fetchUser( $u );
 205
 206                                 if ( $iwUser instanceof UserRightsProxy ) {
 207                                         $data[$u]['interwiki'] = '';
 208
 209                                         if ( !is_null( $params['token'] ) ) {
 210                                                 $tokenFunctions = $this->getTokenFunctions();
 211
 212                                                 foreach ( $params['token'] as $t ) {
 213                                                         $val = call_user_func( $tokenFunctions[$t], $iwUser );
 214                                                         if ( $val === false ) {
 215                                                                 $this->setWarning( "Action '$t' is not allowed for the current user" );
 216                                                         } else {
 217                                                                 $data[$u][$t . 'token'] = $val;
 218                                                         }
 219                                                 }
 220                                         }
 221                                 } else {
 222                                         $data[$u]['missing'] = '';
 223                                 }
 224                         } else {
 225                                 if ( isset( $this->prop['groups'] ) && isset( $data[$u]['groups'] ) ) {
 226                                         $result->setIndexedTagName( $data[$u]['groups'], 'g' );
 227                                 }
 228                                 if ( isset( $this->prop['implicitgroups'] ) && isset( $data[$u]['implicitgroups'] ) ) {
 229                                         $result->setIndexedTagName( $data[$u]['implicitgroups'], 'g' );
 230                                 }
 231                                 if ( isset( $this->prop['rights'] ) && isset( $data[$u]['rights'] ) ) {
 232                                         $result->setIndexedTagName( $data[$u]['rights'], 'r' );
 233                                 }
 234                         }
 235
 236                         $fit = $result->addValue( array( 'query', $this->getModuleName() ),
 237                                         null, $data[$u] );
 238                         if ( !$fit ) {
 239                                 $this->setContinueEnumParameter( 'users',
 240                                                 implode( '|', array_diff( $users, $done ) ) );
 241                                 break;
 242                         }
 243                         $done[] = $u;
 244                 }
 245                 return $result->setIndexedTagName_internal( array( 'query', $this->getModuleName() ), 'user' );
 246         }
 247
 248         /**
 249         * Gets all the groups that a user is automatically a member of (implicit groups)
 250         * @param $user User
 251         * @return array
 252         */
 253         public static function getAutoGroups( $user ) {
 254                 $groups = array();
 255                 $groups[] = '*';
 256
 257                 if ( !$user->isAnon() ) {
 258                         $groups[] = 'user';
 259                 }
 260
 261                 return array_merge( $groups, Autopromote::getAutopromoteGroups( $user ) );
 262         }
 263
 264         public function getCacheMode( $params ) {
 265                 if ( isset( $params['token'] ) ) {
 266                         return 'private';
 267                 } else {
 268                         return 'anon-public-user-private';
 269                 }
 270         }
 271
 272         public function getAllowedParams() {
 273                 return array(
 274                         'prop' => array(
 275                                 ApiBase::PARAM_DFLT => null,
 276                                 ApiBase::PARAM_ISMULTI => true,
 277                                 ApiBase::PARAM_TYPE => array(
 278                                         'blockinfo',
 279                                         'groups',
 280                                         'implicitgroups',
 281                                         'rights',
 282                                         'editcount',
 283                                         'registration',
 284                                         'emailable',
 285                                         'gender',
 286                                 )
 287                         ),
 288                         'users' => array(
 289                                 ApiBase::PARAM_ISMULTI => true
 290                         ),
 291                         'token' => array(
 292                                 ApiBase::PARAM_TYPE => array_keys( $this->getTokenFunctions() ),
 293                                 ApiBase::PARAM_ISMULTI => true
 294                         ),
 295                 );
 296         }
 297
 298         public function getParamDescription() {
 299                 return array(
 300                         'prop' => array(
 301                                 'What pieces of information to include',
 302                                 '  blockinfo      - Tags if the user is blocked, by whom, and for what reason',
 303                                 '  groups         - Lists all the groups the user(s) belongs to',
 304                                 '  implicitgroups - Lists all the groups a user is automatically a member of',
 305                                 '  rights         - Lists all the rights the user(s) has',
 306                                 '  editcount      - Adds the user\'s edit count',
 307                                 '  registration   - Adds the user\'s registration timestamp',
 308                                 '  emailable      - Tags if the user can and wants to receive e-mail through [[Special:Emailuser]]',
 309                                 '  gender         - Tags the gender of the user. Returns "male", "female", or "unknown"',
 310                         ),
 311                         'users' => 'A list of users to obtain the same information for',
 312                         'token' => 'Which tokens to obtain for each user',
 313                 );
 314         }
 315
 316         public function getDescription() {
 317                 return 'Get information about a list of users';
 318         }
 319
 320         public function getExamples() {
 321                 return 'api.php?action=query&list=users&ususers=brion|TimStarling&usprop=groups|editcount|gender';
 322         }
 323
 324         public function getHelpUrls() {
 325                 return 'http://www.mediawiki.org/wiki/API:Users';
 326         }
 327
 328         public function getVersion() {
 329                 return __CLASS__ . ': $Id$';
 330         }
 331 }