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