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         /**
  37          * Properties whose contents does not depend on who is looking at them. If the usprops field
  38          * contains anything not listed here, the cache mode will never be public for logged-in users.
  39          * @var array
  40          */
  41         protected static $publicProps = [
  42                 // everything except 'blockinfo' which might show hidden records if the user
  43                 // making the request has the appropriate permissions
  44                 'groups',
  45                 'groupmemberships',
  46                 'implicitgroups',
  47                 'rights',
  48                 'editcount',
  49                 'registration',
  50                 'emailable',
  51                 'gender',
  52                 'centralids',
  53                 'cancreate',
  54         ];
  55
  56         public function __construct( ApiQuery $query, $moduleName ) {
  57                 parent::__construct( $query, $moduleName, 'us' );
  58         }
  59
  60         /**
  61          * Get an array mapping token names to their handler functions.
  62          * The prototype for a token function is func($user)
  63          * it should return a token or false (permission denied)
  64          * @deprecated since 1.24
  65          * @return array Array of tokenname => function
  66          */
  67         protected function getTokenFunctions() {
  68                 // Don't call the hooks twice
  69                 if ( isset( $this->tokenFunctions ) ) {
  70                         return $this->tokenFunctions;
  71                 }
  72
  73                 // If we're in a mode that breaks the same-origin policy, no tokens can
  74                 // be obtained
  75                 if ( $this->lacksSameOriginSecurity() ) {
  76                         return [];
  77                 }
  78
  79                 $this->tokenFunctions = [
  80                         'userrights' => [ 'ApiQueryUsers', 'getUserrightsToken' ],
  81                 ];
  82                 Hooks::run( 'APIQueryUsersTokens', [ &$this->tokenFunctions ] );
  83
  84                 return $this->tokenFunctions;
  85         }
  86
  87         /**
  88          * @deprecated since 1.24
  89          * @param User $user
  90          * @return string
  91          */
  92         public static function getUserrightsToken( $user ) {
  93                 global $wgUser;
  94
  95                 // Since the permissions check for userrights is non-trivial,
  96                 // don't bother with it here
  97                 return $wgUser->getEditToken( $user->getName() );
  98         }
  99
 100         public function execute() {
 101                 $db = $this->getDB();
 102
 103                 $params = $this->extractRequestParams();
 104                 $this->requireMaxOneParameter( $params, 'userids', 'users' );
 105
 106                 if ( !is_null( $params['prop'] ) ) {
 107                         $this->prop = array_flip( $params['prop'] );
 108                 } else {
 109                         $this->prop = [];
 110                 }
 111                 $useNames = !is_null( $params['users'] );
 112
 113                 $users = (array)$params['users'];
 114                 $userids = (array)$params['userids'];
 115
 116                 $goodNames = $done = [];
 117                 $result = $this->getResult();
 118                 // Canonicalize user names
 119                 foreach ( $users as $u ) {
 120                         $n = User::getCanonicalName( $u );
 121                         if ( $n === false || $n === '' ) {
 122                                 $vals = [ 'name' => $u, 'invalid' => true ];
 123                                 $fit = $result->addValue( [ 'query', $this->getModuleName() ],
 124                                         null, $vals );
 125                                 if ( !$fit ) {
 126                                         $this->setContinueEnumParameter( 'users',
 127                                                 implode( '|', array_diff( $users, $done ) ) );
 128                                         $goodNames = [];
 129                                         break;
 130                                 }
 131                                 $done[] = $u;
 132                         } else {
 133                                 $goodNames[] = $n;
 134                         }
 135                 }
 136
 137                 if ( $useNames ) {
 138                         $parameters = &$goodNames;
 139                 } else {
 140                         $parameters = &$userids;
 141                 }
 142
 143                 $result = $this->getResult();
 144
 145                 if ( count( $parameters ) ) {
 146                         $this->addTables( 'user' );
 147                         $this->addFields( User::selectFields() );
 148                         if ( $useNames ) {
 149                                 $this->addWhereFld( 'user_name', $goodNames );
 150                         } else {
 151                                 $this->addWhereFld( 'user_id', $userids );
 152                         }
 153
 154                         $this->showHiddenUsersAddBlockInfo( isset( $this->prop['blockinfo'] ) );
 155
 156                         $data = [];
 157                         $res = $this->select( __METHOD__ );
 158                         $this->resetQueryParams();
 159
 160                         // get user groups if needed
 161                         if ( isset( $this->prop['groups'] ) || isset( $this->prop['rights'] ) ) {
 162                                 $userGroups = [];
 163
 164                                 $this->addTables( 'user' );
 165                                 if ( $useNames ) {
 166                                         $this->addWhereFld( 'user_name', $goodNames );
 167                                 } else {
 168                                         $this->addWhereFld( 'user_id', $userids );
 169                                 }
 170
 171                                 $this->addTables( 'user_groups' );
 172                                 $this->addJoinConds( [ 'user_groups' => [ 'INNER JOIN', 'ug_user=user_id' ] ] );
 173                                 $this->addFields( [ 'user_name' ] );
 174                                 $this->addFields( UserGroupMembership::selectFields() );
 175                                 if ( !$this->getConfig()->get( 'DisableUserGroupExpiry' ) ) {
 176                                         $this->addWhere( 'ug_expiry IS NULL OR ug_expiry >= ' .
 177                                                 $db->addQuotes( $db->timestamp() ) );
 178                                 }
 179                                 $userGroupsRes = $this->select( __METHOD__ );
 180
 181                                 foreach ( $userGroupsRes as $row ) {
 182                                         $userGroups[$row->user_name][] = $row;
 183                                 }
 184                         }
 185
 186                         foreach ( $res as $row ) {
 187
 188                                 // create user object and pass along $userGroups if set
 189                                 // that reduces the number of database queries needed in User dramatically
 190                                 if ( !isset( $userGroups ) ) {
 191                                         $user = User::newFromRow( $row );
 192                                 } else {
 193                                         if ( !isset( $userGroups[$row->user_name] ) || !is_array( $userGroups[$row->user_name] ) ) {
 194                                                 $userGroups[$row->user_name] = [];
 195                                         }
 196                                         $user = User::newFromRow( $row, [ 'user_groups' => $userGroups[$row->user_name] ] );
 197                                 }
 198                                 if ( $useNames ) {
 199                                         $key = $user->getName();
 200                                 } else {
 201                                         $key = $user->getId();
 202                                 }
 203                                 $data[$key]['userid'] = $user->getId();
 204                                 $data[$key]['name'] = $user->getName();
 205
 206                                 if ( isset( $this->prop['editcount'] ) ) {
 207                                         $data[$key]['editcount'] = $user->getEditCount();
 208                                 }
 209
 210                                 if ( isset( $this->prop['registration'] ) ) {
 211                                         $data[$key]['registration'] = wfTimestampOrNull( TS_ISO_8601, $user->getRegistration() );
 212                                 }
 213
 214                                 if ( isset( $this->prop['groups'] ) ) {
 215                                         $data[$key]['groups'] = $user->getEffectiveGroups();
 216                                 }
 217
 218                                 if ( isset( $this->prop['groupmemberships'] ) ) {
 219                                         $data[$key]['groupmemberships'] = array_map( function( $ugm ) {
 220                                                 return [
 221                                                         'group' => $ugm->getGroup(),
 222                                                         'expiry' => ApiResult::formatExpiry( $ugm->getExpiry() ),
 223                                                 ];
 224                                         }, $user->getGroupMemberships() );
 225                                 }
 226
 227                                 if ( isset( $this->prop['implicitgroups'] ) ) {
 228                                         $data[$key]['implicitgroups'] = $user->getAutomaticGroups();
 229                                 }
 230
 231                                 if ( isset( $this->prop['rights'] ) ) {
 232                                         $data[$key]['rights'] = $user->getRights();
 233                                 }
 234                                 if ( $row->ipb_deleted ) {
 235                                         $data[$key]['hidden'] = true;
 236                                 }
 237                                 if ( isset( $this->prop['blockinfo'] ) && !is_null( $row->ipb_by_text ) ) {
 238                                         $data[$key]['blockid'] = (int)$row->ipb_id;
 239                                         $data[$key]['blockedby'] = $row->ipb_by_text;
 240                                         $data[$key]['blockedbyid'] = (int)$row->ipb_by;
 241                                         $data[$key]['blockedtimestamp'] = wfTimestamp( TS_ISO_8601, $row->ipb_timestamp );
 242                                         $data[$key]['blockreason'] = $row->ipb_reason;
 243                                         $data[$key]['blockexpiry'] = $row->ipb_expiry;
 244                                 }
 245
 246                                 if ( isset( $this->prop['emailable'] ) ) {
 247                                         $data[$key]['emailable'] = $user->canReceiveEmail();
 248                                 }
 249
 250                                 if ( isset( $this->prop['gender'] ) ) {
 251                                         $gender = $user->getOption( 'gender' );
 252                                         if ( strval( $gender ) === '' ) {
 253                                                 $gender = 'unknown';
 254                                         }
 255                                         $data[$key]['gender'] = $gender;
 256                                 }
 257
 258                                 if ( isset( $this->prop['centralids'] ) ) {
 259                                         $data[$key] += ApiQueryUserInfo::getCentralUserInfo(
 260                                                 $this->getConfig(), $user, $params['attachedwiki']
 261                                         );
 262                                 }
 263
 264                                 if ( !is_null( $params['token'] ) ) {
 265                                         $tokenFunctions = $this->getTokenFunctions();
 266                                         foreach ( $params['token'] as $t ) {
 267                                                 $val = call_user_func( $tokenFunctions[$t], $user );
 268                                                 if ( $val === false ) {
 269                                                         $this->addWarning( [ 'apiwarn-tokennotallowed', $t ] );
 270                                                 } else {
 271                                                         $data[$key][$t . 'token'] = $val;
 272                                                 }
 273                                         }
 274                                 }
 275                         }
 276                 }
 277
 278                 $context = $this->getContext();
 279                 // Second pass: add result data to $retval
 280                 foreach ( $parameters as $u ) {
 281                         if ( !isset( $data[$u] ) ) {
 282                                 if ( $useNames ) {
 283                                         $data[$u] = [ 'name' => $u ];
 284                                         $urPage = new UserrightsPage;
 285                                         $urPage->setContext( $context );
 286
 287                                         $iwUser = $urPage->fetchUser( $u );
 288
 289                                         if ( $iwUser instanceof UserRightsProxy ) {
 290                                                 $data[$u]['interwiki'] = true;
 291
 292                                                 if ( !is_null( $params['token'] ) ) {
 293                                                         $tokenFunctions = $this->getTokenFunctions();
 294
 295                                                         foreach ( $params['token'] as $t ) {
 296                                                                 $val = call_user_func( $tokenFunctions[$t], $iwUser );
 297                                                                 if ( $val === false ) {
 298                                                                         $this->addWarning( [ 'apiwarn-tokennotallowed', $t ] );
 299                                                                 } else {
 300                                                                         $data[$u][$t . 'token'] = $val;
 301                                                                 }
 302                                                         }
 303                                                 }
 304                                         } else {
 305                                                 $data[$u]['missing'] = true;
 306                                                 if ( isset( $this->prop['cancreate'] ) ) {
 307                                                         $status = MediaWiki\Auth\AuthManager::singleton()->canCreateAccount( $u );
 308                                                         $data[$u]['cancreate'] = $status->isGood();
 309                                                         if ( !$status->isGood() ) {
 310                                                                 $data[$u]['cancreateerror'] = $this->getErrorFormatter()->arrayFromStatus( $status );
 311                                                         }
 312                                                 }
 313                                         }
 314                                 } else {
 315                                         $data[$u] = [ 'userid' => $u, 'missing' => true ];
 316                                 }
 317
 318                         } else {
 319                                 if ( isset( $this->prop['groups'] ) && isset( $data[$u]['groups'] ) ) {
 320                                         ApiResult::setArrayType( $data[$u]['groups'], 'array' );
 321                                         ApiResult::setIndexedTagName( $data[$u]['groups'], 'g' );
 322                                 }
 323                                 if ( isset( $this->prop['groupmemberships'] ) && isset( $data[$u]['groupmemberships'] ) ) {
 324                                         ApiResult::setArrayType( $data[$u]['groupmemberships'], 'array' );
 325                                         ApiResult::setIndexedTagName( $data[$u]['groupmemberships'], 'groupmembership' );
 326                                 }
 327                                 if ( isset( $this->prop['implicitgroups'] ) && isset( $data[$u]['implicitgroups'] ) ) {
 328                                         ApiResult::setArrayType( $data[$u]['implicitgroups'], 'array' );
 329                                         ApiResult::setIndexedTagName( $data[$u]['implicitgroups'], 'g' );
 330                                 }
 331                                 if ( isset( $this->prop['rights'] ) && isset( $data[$u]['rights'] ) ) {
 332                                         ApiResult::setArrayType( $data[$u]['rights'], 'array' );
 333                                         ApiResult::setIndexedTagName( $data[$u]['rights'], 'r' );
 334                                 }
 335                         }
 336
 337                         $fit = $result->addValue( [ 'query', $this->getModuleName() ],
 338                                 null, $data[$u] );
 339                         if ( !$fit ) {
 340                                 if ( $useNames ) {
 341                                         $this->setContinueEnumParameter( 'users',
 342                                                 implode( '|', array_diff( $users, $done ) ) );
 343                                 } else {
 344                                         $this->setContinueEnumParameter( 'userids',
 345                                                 implode( '|', array_diff( $userids, $done ) ) );
 346                                 }
 347                                 break;
 348                         }
 349                         $done[] = $u;
 350                 }
 351                 $result->addIndexedTagName( [ 'query', $this->getModuleName() ], 'user' );
 352         }
 353
 354         public function getCacheMode( $params ) {
 355                 if ( isset( $params['token'] ) ) {
 356                         return 'private';
 357                 } elseif ( array_diff( (array)$params['prop'], static::$publicProps ) ) {
 358                         return 'anon-public-user-private';
 359                 } else {
 360                         return 'public';
 361                 }
 362         }
 363
 364         public function getAllowedParams() {
 365                 return [
 366                         'prop' => [
 367                                 ApiBase::PARAM_ISMULTI => true,
 368                                 ApiBase::PARAM_TYPE => [
 369                                         'blockinfo',
 370                                         'groups',
 371                                         'groupmemberships',
 372                                         'implicitgroups',
 373                                         'rights',
 374                                         'editcount',
 375                                         'registration',
 376                                         'emailable',
 377                                         'gender',
 378                                         'centralids',
 379                                         'cancreate',
 380                                         // When adding a prop, consider whether it should be added
 381                                         // to self::$publicProps
 382                                 ],
 383                                 ApiBase::PARAM_HELP_MSG_PER_VALUE => [],
 384                         ],
 385                         'attachedwiki' => null,
 386                         'users' => [
 387                                 ApiBase::PARAM_ISMULTI => true
 388                         ],
 389                         'userids' => [
 390                                 ApiBase::PARAM_ISMULTI => true,
 391                                 ApiBase::PARAM_TYPE => 'integer'
 392                         ],
 393                         'token' => [
 394                                 ApiBase::PARAM_DEPRECATED => true,
 395                                 ApiBase::PARAM_TYPE => array_keys( $this->getTokenFunctions() ),
 396                                 ApiBase::PARAM_ISMULTI => true
 397                         ],
 398                 ];
 399         }
 400
 401         protected function getExamplesMessages() {
 402                 return [
 403                         'action=query&list=users&ususers=Example&usprop=groups|editcount|gender'
 404                                 => 'apihelp-query+users-example-simple',
 405                 ];
 406         }
 407
 408         public function getHelpUrls() {
 409                 return 'https://www.mediawiki.org/wiki/API:Users';
 410         }
 411 }