includes/api/ApiQueryAllUsers.php

   1 <?php
   2 /**
   3  * Copyright © 2007 Yuri Astrakhan "<Firstname><Lastname>@gmail.com"
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  */
  22
  23 use MediaWiki\Block\DatabaseBlock;
  24
  25 /**
  26  * Query module to enumerate all registered users.
  27  *
  28  * @ingroup API
  29  */
  30 class ApiQueryAllUsers extends ApiQueryBase {
  31         use ApiQueryBlockInfoTrait;
  32
  33         public function __construct( ApiQuery $query, $moduleName ) {
  34                 parent::__construct( $query, $moduleName, 'au' );
  35         }
  36
  37         /**
  38          * This function converts the user name to a canonical form
  39          * which is stored in the database.
  40          * @param string $name
  41          * @return string
  42          */
  43         private function getCanonicalUserName( $name ) {
  44                 return strtr( $name, '_', ' ' );
  45         }
  46
  47         public function execute() {
  48                 $params = $this->extractRequestParams();
  49                 $activeUserDays = $this->getConfig()->get( 'ActiveUserDays' );
  50
  51                 $db = $this->getDB();
  52                 $commentStore = CommentStore::getStore();
  53
  54                 $prop = $params['prop'];
  55                 if ( !is_null( $prop ) ) {
  56                         $prop = array_flip( $prop );
  57                         $fld_blockinfo = isset( $prop['blockinfo'] );
  58                         $fld_editcount = isset( $prop['editcount'] );
  59                         $fld_groups = isset( $prop['groups'] );
  60                         $fld_rights = isset( $prop['rights'] );
  61                         $fld_registration = isset( $prop['registration'] );
  62                         $fld_implicitgroups = isset( $prop['implicitgroups'] );
  63                         $fld_centralids = isset( $prop['centralids'] );
  64                 } else {
  65                         $fld_blockinfo = $fld_editcount = $fld_groups = $fld_registration =
  66                                 $fld_rights = $fld_implicitgroups = $fld_centralids = false;
  67                 }
  68
  69                 $limit = $params['limit'];
  70
  71                 $this->addTables( 'user' );
  72
  73                 $dir = ( $params['dir'] == 'descending' ? 'older' : 'newer' );
  74                 $from = is_null( $params['from'] ) ? null : $this->getCanonicalUserName( $params['from'] );
  75                 $to = is_null( $params['to'] ) ? null : $this->getCanonicalUserName( $params['to'] );
  76
  77                 # MySQL can't figure out that 'user_name' and 'qcc_title' are the same
  78                 # despite the JOIN condition, so manually sort on the correct one.
  79                 $userFieldToSort = $params['activeusers'] ? 'qcc_title' : 'user_name';
  80
  81                 # Some of these subtable joins are going to give us duplicate rows, so
  82                 # calculate the maximum number of duplicates we might see.
  83                 $maxDuplicateRows = 1;
  84
  85                 $this->addWhereRange( $userFieldToSort, $dir, $from, $to );
  86
  87                 if ( !is_null( $params['prefix'] ) ) {
  88                         $this->addWhere( $userFieldToSort .
  89                                 $db->buildLike( $this->getCanonicalUserName( $params['prefix'] ), $db->anyString() ) );
  90                 }
  91
  92                 if ( !is_null( $params['rights'] ) && count( $params['rights'] ) ) {
  93                         $groups = [];
  94                         foreach ( $params['rights'] as $r ) {
  95                                 $groups = array_merge( $groups, $this->getPermissionManager()
  96                                         ->getGroupsWithPermission( $r ) );
  97                         }
  98
  99                         // no group with the given right(s) exists, no need for a query
 100                         if ( $groups === [] ) {
 101                                 $this->getResult()->addIndexedTagName( [ 'query', $this->getModuleName() ], '' );
 102
 103                                 return;
 104                         }
 105
 106                         $groups = array_unique( $groups );
 107
 108                         if ( is_null( $params['group'] ) ) {
 109                                 $params['group'] = $groups;
 110                         } else {
 111                                 $params['group'] = array_unique( array_merge( $params['group'], $groups ) );
 112                         }
 113                 }
 114
 115                 $this->requireMaxOneParameter( $params, 'group', 'excludegroup' );
 116
 117                 if ( !is_null( $params['group'] ) && count( $params['group'] ) ) {
 118                         // Filter only users that belong to a given group. This might
 119                         // produce as many rows-per-user as there are groups being checked.
 120                         $this->addTables( 'user_groups', 'ug1' );
 121                         $this->addJoinConds( [
 122                                 'ug1' => [
 123                                         'JOIN',
 124                                         [
 125                                                 'ug1.ug_user=user_id',
 126                                                 'ug1.ug_group' => $params['group'],
 127                                                 'ug1.ug_expiry IS NULL OR ug1.ug_expiry >= ' . $db->addQuotes( $db->timestamp() )
 128                                         ]
 129                                 ]
 130                         ] );
 131                         $maxDuplicateRows *= count( $params['group'] );
 132                 }
 133
 134                 if ( !is_null( $params['excludegroup'] ) && count( $params['excludegroup'] ) ) {
 135                         // Filter only users don't belong to a given group. This can only
 136                         // produce one row-per-user, because we only keep on "no match".
 137                         $this->addTables( 'user_groups', 'ug1' );
 138
 139                         if ( count( $params['excludegroup'] ) == 1 ) {
 140                                 $exclude = [ 'ug1.ug_group' => $params['excludegroup'][0] ];
 141                         } else {
 142                                 $exclude = [ $db->makeList(
 143                                         [ 'ug1.ug_group' => $params['excludegroup'] ],
 144                                         LIST_OR
 145                                 ) ];
 146                         }
 147                         $this->addJoinConds( [ 'ug1' => [ 'LEFT JOIN',
 148                                 array_merge( [
 149                                         'ug1.ug_user=user_id',
 150                                         'ug1.ug_expiry IS NULL OR ug1.ug_expiry >= ' . $db->addQuotes( $db->timestamp() )
 151                                 ], $exclude )
 152                         ] ] );
 153                         $this->addWhere( 'ug1.ug_user IS NULL' );
 154                 }
 155
 156                 if ( $params['witheditsonly'] ) {
 157                         $this->addWhere( 'user_editcount > 0' );
 158                 }
 159
 160                 $this->addBlockInfoToQuery( $fld_blockinfo );
 161
 162                 if ( $fld_groups || $fld_rights ) {
 163                         $this->addFields( [ 'groups' =>
 164                                 $db->buildGroupConcatField( '|', 'user_groups', 'ug_group', [
 165                                         'ug_user=user_id',
 166                                         'ug_expiry IS NULL OR ug_expiry >= ' . $db->addQuotes( $db->timestamp() )
 167                                 ] )
 168                         ] );
 169                 }
 170
 171                 if ( $params['activeusers'] ) {
 172                         $activeUserSeconds = $activeUserDays * 86400;
 173
 174                         // Filter query to only include users in the active users cache.
 175                         // There shouldn't be any duplicate rows in querycachetwo here.
 176                         $this->addTables( 'querycachetwo' );
 177                         $this->addJoinConds( [ 'querycachetwo' => [
 178                                 'JOIN', [
 179                                         'qcc_type' => 'activeusers',
 180                                         'qcc_namespace' => NS_USER,
 181                                         'qcc_title=user_name',
 182                                 ],
 183                         ] ] );
 184
 185                         // Actually count the actions using a subquery (T66505 and T66507)
 186                         $tables = [ 'recentchanges', 'actor' ];
 187                         $joins = [
 188                                 'actor' => [ 'JOIN', 'rc_actor = actor_id' ],
 189                         ];
 190                         $timestamp = $db->timestamp( wfTimestamp( TS_UNIX ) - $activeUserSeconds );
 191                         $this->addFields( [
 192                                 'recentactions' => '(' . $db->selectSQLText(
 193                                         $tables,
 194                                         'COUNT(*)',
 195                                         [
 196                                                 'actor_user = user_id',
 197                                                 'rc_type != ' . $db->addQuotes( RC_EXTERNAL ), // no wikidata
 198                                                 'rc_log_type IS NULL OR rc_log_type != ' . $db->addQuotes( 'newusers' ),
 199                                                 'rc_timestamp >= ' . $db->addQuotes( $timestamp ),
 200                                         ],
 201                                         __METHOD__,
 202                                         [],
 203                                         $joins
 204                                 ) . ')'
 205                         ] );
 206                 }
 207
 208                 $sqlLimit = $limit + $maxDuplicateRows;
 209                 $this->addOption( 'LIMIT', $sqlLimit );
 210
 211                 $this->addFields( [
 212                         'user_name',
 213                         'user_id'
 214                 ] );
 215                 $this->addFieldsIf( 'user_editcount', $fld_editcount );
 216                 $this->addFieldsIf( 'user_registration', $fld_registration );
 217
 218                 $res = $this->select( __METHOD__ );
 219                 $count = 0;
 220                 $countDuplicates = 0;
 221                 $lastUser = false;
 222                 $result = $this->getResult();
 223                 foreach ( $res as $row ) {
 224                         $count++;
 225
 226                         if ( $lastUser === $row->user_name ) {
 227                                 // Duplicate row due to one of the needed subtable joins.
 228                                 // Ignore it, but count the number of them to sanely handle
 229                                 // miscalculation of $maxDuplicateRows.
 230                                 $countDuplicates++;
 231                                 if ( $countDuplicates == $maxDuplicateRows ) {
 232                                         ApiBase::dieDebug( __METHOD__, 'Saw more duplicate rows than expected' );
 233                                 }
 234                                 continue;
 235                         }
 236
 237                         $countDuplicates = 0;
 238                         $lastUser = $row->user_name;
 239
 240                         if ( $count > $limit ) {
 241                                 // We've reached the one extra which shows that there are
 242                                 // additional pages to be had. Stop here...
 243                                 $this->setContinueEnumParameter( 'from', $row->user_name );
 244                                 break;
 245                         }
 246
 247                         if ( $count == $sqlLimit ) {
 248                                 // Should never hit this (either the $countDuplicates check or
 249                                 // the $count > $limit check should hit first), but check it
 250                                 // anyway just in case.
 251                                 ApiBase::dieDebug( __METHOD__, 'Saw more duplicate rows than expected' );
 252                         }
 253
 254                         if ( $params['activeusers'] && $row->recentactions === 0 ) {
 255                                 // activeusers cache was out of date
 256                                 continue;
 257                         }
 258
 259                         $data = [
 260                                 'userid' => (int)$row->user_id,
 261                                 'name' => $row->user_name,
 262                         ];
 263
 264                         if ( $fld_centralids ) {
 265                                 $data += ApiQueryUserInfo::getCentralUserInfo(
 266                                         $this->getConfig(), User::newFromId( $row->user_id ), $params['attachedwiki']
 267                                 );
 268                         }
 269
 270                         if ( $fld_blockinfo && !is_null( $row->ipb_id ) ) {
 271                                 $data += $this->getBlockDetails( DatabaseBlock::newFromRow( $row ) );
 272                         }
 273                         if ( $row->ipb_deleted ) {
 274                                 $data['hidden'] = true;
 275                         }
 276                         if ( $fld_editcount ) {
 277                                 $data['editcount'] = (int)$row->user_editcount;
 278                         }
 279                         if ( $params['activeusers'] ) {
 280                                 $data['recentactions'] = (int)$row->recentactions;
 281                         }
 282                         if ( $fld_registration ) {
 283                                 $data['registration'] = $row->user_registration ?
 284                                         wfTimestamp( TS_ISO_8601, $row->user_registration ) : '';
 285                         }
 286
 287                         if ( $fld_implicitgroups || $fld_groups || $fld_rights ) {
 288                                 $implicitGroups = User::newFromId( $row->user_id )->getAutomaticGroups();
 289                                 if ( isset( $row->groups ) && $row->groups !== '' ) {
 290                                         $groups = array_merge( $implicitGroups, explode( '|', $row->groups ) );
 291                                 } else {
 292                                         $groups = $implicitGroups;
 293                                 }
 294
 295                                 if ( $fld_groups ) {
 296                                         $data['groups'] = $groups;
 297                                         ApiResult::setIndexedTagName( $data['groups'], 'g' );
 298                                         ApiResult::setArrayType( $data['groups'], 'array' );
 299                                 }
 300
 301                                 if ( $fld_implicitgroups ) {
 302                                         $data['implicitgroups'] = $implicitGroups;
 303                                         ApiResult::setIndexedTagName( $data['implicitgroups'], 'g' );
 304                                         ApiResult::setArrayType( $data['implicitgroups'], 'array' );
 305                                 }
 306
 307                                 if ( $fld_rights ) {
 308                                         $data['rights'] = $this->getPermissionManager()->getGroupPermissions( $groups );
 309                                         ApiResult::setIndexedTagName( $data['rights'], 'r' );
 310                                         ApiResult::setArrayType( $data['rights'], 'array' );
 311                                 }
 312                         }
 313
 314                         $fit = $result->addValue( [ 'query', $this->getModuleName() ], null, $data );
 315                         if ( !$fit ) {
 316                                 $this->setContinueEnumParameter( 'from', $data['name'] );
 317                                 break;
 318                         }
 319                 }
 320
 321                 $result->addIndexedTagName( [ 'query', $this->getModuleName() ], 'u' );
 322         }
 323
 324         public function getCacheMode( $params ) {
 325                 return 'anon-public-user-private';
 326         }
 327
 328         public function getAllowedParams() {
 329                 $userGroups = User::getAllGroups();
 330
 331                 return [
 332                         'from' => null,
 333                         'to' => null,
 334                         'prefix' => null,
 335                         'dir' => [
 336                                 ApiBase::PARAM_DFLT => 'ascending',
 337                                 ApiBase::PARAM_TYPE => [
 338                                         'ascending',
 339                                         'descending'
 340                                 ],
 341                         ],
 342                         'group' => [
 343                                 ApiBase::PARAM_TYPE => $userGroups,
 344                                 ApiBase::PARAM_ISMULTI => true,
 345                         ],
 346                         'excludegroup' => [
 347                                 ApiBase::PARAM_TYPE => $userGroups,
 348                                 ApiBase::PARAM_ISMULTI => true,
 349                         ],
 350                         'rights' => [
 351                                 ApiBase::PARAM_TYPE => $this->getPermissionManager()->getAllPermissions(),
 352                                 ApiBase::PARAM_ISMULTI => true,
 353                         ],
 354                         'prop' => [
 355                                 ApiBase::PARAM_ISMULTI => true,
 356                                 ApiBase::PARAM_TYPE => [
 357                                         'blockinfo',
 358                                         'groups',
 359                                         'implicitgroups',
 360                                         'rights',
 361                                         'editcount',
 362                                         'registration',
 363                                         'centralids',
 364                                 ],
 365                                 ApiBase::PARAM_HELP_MSG_PER_VALUE => [],
 366                         ],
 367                         'limit' => [
 368                                 ApiBase::PARAM_DFLT => 10,
 369                                 ApiBase::PARAM_TYPE => 'limit',
 370                                 ApiBase::PARAM_MIN => 1,
 371                                 ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
 372                                 ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2
 373                         ],
 374                         'witheditsonly' => false,
 375                         'activeusers' => [
 376                                 ApiBase::PARAM_DFLT => false,
 377                                 ApiBase::PARAM_HELP_MSG => [
 378                                         'apihelp-query+allusers-param-activeusers',
 379                                         $this->getConfig()->get( 'ActiveUserDays' )
 380                                 ],
 381                         ],
 382                         'attachedwiki' => null,
 383                 ];
 384         }
 385
 386         protected function getExamplesMessages() {
 387                 return [
 388                         'action=query&list=allusers&aufrom=Y'
 389                                 => 'apihelp-query+allusers-example-y',
 390                 ];
 391         }
 392
 393         public function getHelpUrls() {
 394                 return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Allusers';
 395         }
 396 }