includes/api/ApiQueryAllUsers.php

   1 <?php
   2 /**
   3  *
   4  *
   5  * Created on July 7, 2007
   6  *
   7  * Copyright © 2007 Yuri Astrakhan "<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 enumerate all registered users.
  29  *
  30  * @ingroup API
  31  */
  32 class ApiQueryAllUsers extends ApiQueryBase {
  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
  53                 $prop = $params['prop'];
  54                 if ( !is_null( $prop ) ) {
  55                         $prop = array_flip( $prop );
  56                         $fld_blockinfo = isset( $prop['blockinfo'] );
  57                         $fld_editcount = isset( $prop['editcount'] );
  58                         $fld_groups = isset( $prop['groups'] );
  59                         $fld_rights = isset( $prop['rights'] );
  60                         $fld_registration = isset( $prop['registration'] );
  61                         $fld_implicitgroups = isset( $prop['implicitgroups'] );
  62                         $fld_centralids = isset( $prop['centralids'] );
  63                 } else {
  64                         $fld_blockinfo = $fld_editcount = $fld_groups = $fld_registration =
  65                                 $fld_rights = $fld_implicitgroups = $fld_centralids = false;
  66                 }
  67
  68                 $limit = $params['limit'];
  69
  70                 $this->addTables( 'user' );
  71
  72                 $dir = ( $params['dir'] == 'descending' ? 'older' : 'newer' );
  73                 $from = is_null( $params['from'] ) ? null : $this->getCanonicalUserName( $params['from'] );
  74                 $to = is_null( $params['to'] ) ? null : $this->getCanonicalUserName( $params['to'] );
  75
  76                 # MySQL can't figure out that 'user_name' and 'qcc_title' are the same
  77                 # despite the JOIN condition, so manually sort on the correct one.
  78                 $userFieldToSort = $params['activeusers'] ? 'qcc_title' : 'user_name';
  79
  80                 # Some of these subtable joins are going to give us duplicate rows, so
  81                 # calculate the maximum number of duplicates we might see.
  82                 $maxDuplicateRows = 1;
  83
  84                 $this->addWhereRange( $userFieldToSort, $dir, $from, $to );
  85
  86                 if ( !is_null( $params['prefix'] ) ) {
  87                         $this->addWhere( $userFieldToSort .
  88                                 $db->buildLike( $this->getCanonicalUserName( $params['prefix'] ), $db->anyString() ) );
  89                 }
  90
  91                 if ( !is_null( $params['rights'] ) && count( $params['rights'] ) ) {
  92                         $groups = [];
  93                         foreach ( $params['rights'] as $r ) {
  94                                 $groups = array_merge( $groups, User::getGroupsWithPermission( $r ) );
  95                         }
  96
  97                         // no group with the given right(s) exists, no need for a query
  98                         if ( !count( $groups ) ) {
  99                                 $this->getResult()->addIndexedTagName( [ 'query', $this->getModuleName() ], '' );
 100
 101                                 return;
 102                         }
 103
 104                         $groups = array_unique( $groups );
 105
 106                         if ( is_null( $params['group'] ) ) {
 107                                 $params['group'] = $groups;
 108                         } else {
 109                                 $params['group'] = array_unique( array_merge( $params['group'], $groups ) );
 110                         }
 111                 }
 112
 113                 $this->requireMaxOneParameter( $params, 'group', 'excludegroup' );
 114
 115                 if ( !is_null( $params['group'] ) && count( $params['group'] ) ) {
 116                         // Filter only users that belong to a given group. This might
 117                         // produce as many rows-per-user as there are groups being checked.
 118                         $this->addTables( 'user_groups', 'ug1' );
 119                         $this->addJoinConds( [
 120                                 'ug1' => [
 121                                         'INNER JOIN',
 122                                         [
 123                                                 'ug1.ug_user=user_id',
 124                                                 'ug1.ug_group' => $params['group'],
 125                                                 'ug1.ug_expiry IS NULL OR ug1.ug_expiry >= ' . $db->addQuotes( $db->timestamp() )
 126                                         ]
 127                                 ]
 128                         ] );
 129                         $maxDuplicateRows *= count( $params['group'] );
 130                 }
 131
 132                 if ( !is_null( $params['excludegroup'] ) && count( $params['excludegroup'] ) ) {
 133                         // Filter only users don't belong to a given group. This can only
 134                         // produce one row-per-user, because we only keep on "no match".
 135                         $this->addTables( 'user_groups', 'ug1' );
 136
 137                         if ( count( $params['excludegroup'] ) == 1 ) {
 138                                 $exclude = [ 'ug1.ug_group' => $params['excludegroup'][0] ];
 139                         } else {
 140                                 $exclude = [ $db->makeList(
 141                                         [ 'ug1.ug_group' => $params['excludegroup'] ],
 142                                         LIST_OR
 143                                 ) ];
 144                         }
 145                         $this->addJoinConds( [ 'ug1' => [ 'LEFT OUTER JOIN',
 146                                 array_merge( [
 147                                         'ug1.ug_user=user_id',
 148                                         'ug1.ug_expiry IS NULL OR ug1.ug_expiry >= ' . $db->addQuotes( $db->timestamp() )
 149                                 ], $exclude )
 150                         ] ] );
 151                         $this->addWhere( 'ug1.ug_user IS NULL' );
 152                 }
 153
 154                 if ( $params['witheditsonly'] ) {
 155                         $this->addWhere( 'user_editcount > 0' );
 156                 }
 157
 158                 $this->showHiddenUsersAddBlockInfo( $fld_blockinfo );
 159
 160                 if ( $fld_groups || $fld_rights ) {
 161                         $this->addFields( [ 'groups' =>
 162                                 $db->buildGroupConcatField( '|', 'user_groups', 'ug_group', [
 163                                         'ug_user=user_id',
 164                                         'ug_expiry IS NULL OR ug_expiry >= ' . $db->addQuotes( $db->timestamp() )
 165                                 ] )
 166                         ] );
 167                 }
 168
 169                 if ( $params['activeusers'] ) {
 170                         $activeUserSeconds = $activeUserDays * 86400;
 171
 172                         // Filter query to only include users in the active users cache.
 173                         // There shouldn't be any duplicate rows in querycachetwo here.
 174                         $this->addTables( 'querycachetwo' );
 175                         $this->addJoinConds( [ 'querycachetwo' => [
 176                                 'INNER JOIN', [
 177                                         'qcc_type' => 'activeusers',
 178                                         'qcc_namespace' => NS_USER,
 179                                         'qcc_title=user_name',
 180                                 ],
 181                         ] ] );
 182
 183                         // Actually count the actions using a subquery (T66505 and T66507)
 184                         $timestamp = $db->timestamp( wfTimestamp( TS_UNIX ) - $activeUserSeconds );
 185                         $this->addFields( [
 186                                 'recentactions' => '(' . $db->selectSQLText(
 187                                         'recentchanges',
 188                                         'COUNT(*)',
 189                                         [
 190                                                 'rc_user_text = user_name',
 191                                                 'rc_type != ' . $db->addQuotes( RC_EXTERNAL ), // no wikidata
 192                                                 'rc_log_type IS NULL OR rc_log_type != ' . $db->addQuotes( 'newusers' ),
 193                                                 'rc_timestamp >= ' . $db->addQuotes( $timestamp ),
 194                                         ]
 195                                 ) . ')'
 196                         ] );
 197                 }
 198
 199                 $sqlLimit = $limit + $maxDuplicateRows;
 200                 $this->addOption( 'LIMIT', $sqlLimit );
 201
 202                 $this->addFields( [
 203                         'user_name',
 204                         'user_id'
 205                 ] );
 206                 $this->addFieldsIf( 'user_editcount', $fld_editcount );
 207                 $this->addFieldsIf( 'user_registration', $fld_registration );
 208
 209                 $res = $this->select( __METHOD__ );
 210                 $count = 0;
 211                 $countDuplicates = 0;
 212                 $lastUser = false;
 213                 $result = $this->getResult();
 214                 foreach ( $res as $row ) {
 215                         $count++;
 216
 217                         if ( $lastUser === $row->user_name ) {
 218                                 // Duplicate row due to one of the needed subtable joins.
 219                                 // Ignore it, but count the number of them to sanely handle
 220                                 // miscalculation of $maxDuplicateRows.
 221                                 $countDuplicates++;
 222                                 if ( $countDuplicates == $maxDuplicateRows ) {
 223                                         ApiBase::dieDebug( __METHOD__, 'Saw more duplicate rows than expected' );
 224                                 }
 225                                 continue;
 226                         }
 227
 228                         $countDuplicates = 0;
 229                         $lastUser = $row->user_name;
 230
 231                         if ( $count > $limit ) {
 232                                 // We've reached the one extra which shows that there are
 233                                 // additional pages to be had. Stop here...
 234                                 $this->setContinueEnumParameter( 'from', $row->user_name );
 235                                 break;
 236                         }
 237
 238                         if ( $count == $sqlLimit ) {
 239                                 // Should never hit this (either the $countDuplicates check or
 240                                 // the $count > $limit check should hit first), but check it
 241                                 // anyway just in case.
 242                                 ApiBase::dieDebug( __METHOD__, 'Saw more duplicate rows than expected' );
 243                         }
 244
 245                         if ( $params['activeusers'] && $row->recentactions === 0 ) {
 246                                 // activeusers cache was out of date
 247                                 continue;
 248                         }
 249
 250                         $data = [
 251                                 'userid' => (int)$row->user_id,
 252                                 'name' => $row->user_name,
 253                         ];
 254
 255                         if ( $fld_centralids ) {
 256                                 $data += ApiQueryUserInfo::getCentralUserInfo(
 257                                         $this->getConfig(), User::newFromId( $row->user_id ), $params['attachedwiki']
 258                                 );
 259                         }
 260
 261                         if ( $fld_blockinfo && !is_null( $row->ipb_by_text ) ) {
 262                                 $data['blockid'] = (int)$row->ipb_id;
 263                                 $data['blockedby'] = $row->ipb_by_text;
 264                                 $data['blockedbyid'] = (int)$row->ipb_by;
 265                                 $data['blockedtimestamp'] = wfTimestamp( TS_ISO_8601, $row->ipb_timestamp );
 266                                 $data['blockreason'] = $row->ipb_reason;
 267                                 $data['blockexpiry'] = $row->ipb_expiry;
 268                         }
 269                         if ( $row->ipb_deleted ) {
 270                                 $data['hidden'] = true;
 271                         }
 272                         if ( $fld_editcount ) {
 273                                 $data['editcount'] = intval( $row->user_editcount );
 274                         }
 275                         if ( $params['activeusers'] ) {
 276                                 $data['recentactions'] = intval( $row->recentactions );
 277                                 // @todo 'recenteditcount' is set for BC, remove in 1.25
 278                                 $data['recenteditcount'] = $data['recentactions'];
 279                         }
 280                         if ( $fld_registration ) {
 281                                 $data['registration'] = $row->user_registration ?
 282                                         wfTimestamp( TS_ISO_8601, $row->user_registration ) : '';
 283                         }
 284
 285                         if ( $fld_implicitgroups || $fld_groups || $fld_rights ) {
 286                                 $implicitGroups = User::newFromId( $row->user_id )->getAutomaticGroups();
 287                                 if ( isset( $row->groups ) && $row->groups !== '' ) {
 288                                         $groups = array_merge( $implicitGroups, explode( '|', $row->groups ) );
 289                                 } else {
 290                                         $groups = $implicitGroups;
 291                                 }
 292
 293                                 if ( $fld_groups ) {
 294                                         $data['groups'] = $groups;
 295                                         ApiResult::setIndexedTagName( $data['groups'], 'g' );
 296                                         ApiResult::setArrayType( $data['groups'], 'array' );
 297                                 }
 298
 299                                 if ( $fld_implicitgroups ) {
 300                                         $data['implicitgroups'] = $implicitGroups;
 301                                         ApiResult::setIndexedTagName( $data['implicitgroups'], 'g' );
 302                                         ApiResult::setArrayType( $data['implicitgroups'], 'array' );
 303                                 }
 304
 305                                 if ( $fld_rights ) {
 306                                         $data['rights'] = User::getGroupPermissions( $groups );
 307                                         ApiResult::setIndexedTagName( $data['rights'], 'r' );
 308                                         ApiResult::setArrayType( $data['rights'], 'array' );
 309                                 }
 310                         }
 311
 312                         $fit = $result->addValue( [ 'query', $this->getModuleName() ], null, $data );
 313                         if ( !$fit ) {
 314                                 $this->setContinueEnumParameter( 'from', $data['name'] );
 315                                 break;
 316                         }
 317                 }
 318
 319                 $result->addIndexedTagName( [ 'query', $this->getModuleName() ], 'u' );
 320         }
 321
 322         public function getCacheMode( $params ) {
 323                 return 'anon-public-user-private';
 324         }
 325
 326         public function getAllowedParams() {
 327                 $userGroups = User::getAllGroups();
 328
 329                 return [
 330                         'from' => null,
 331                         'to' => null,
 332                         'prefix' => null,
 333                         'dir' => [
 334                                 ApiBase::PARAM_DFLT => 'ascending',
 335                                 ApiBase::PARAM_TYPE => [
 336                                         'ascending',
 337                                         'descending'
 338                                 ],
 339                         ],
 340                         'group' => [
 341                                 ApiBase::PARAM_TYPE => $userGroups,
 342                                 ApiBase::PARAM_ISMULTI => true,
 343                         ],
 344                         'excludegroup' => [
 345                                 ApiBase::PARAM_TYPE => $userGroups,
 346                                 ApiBase::PARAM_ISMULTI => true,
 347                         ],
 348                         'rights' => [
 349                                 ApiBase::PARAM_TYPE => User::getAllRights(),
 350                                 ApiBase::PARAM_ISMULTI => true,
 351                         ],
 352                         'prop' => [
 353                                 ApiBase::PARAM_ISMULTI => true,
 354                                 ApiBase::PARAM_TYPE => [
 355                                         'blockinfo',
 356                                         'groups',
 357                                         'implicitgroups',
 358                                         'rights',
 359                                         'editcount',
 360                                         'registration',
 361                                         'centralids',
 362                                 ],
 363                                 ApiBase::PARAM_HELP_MSG_PER_VALUE => [],
 364                         ],
 365                         'limit' => [
 366                                 ApiBase::PARAM_DFLT => 10,
 367                                 ApiBase::PARAM_TYPE => 'limit',
 368                                 ApiBase::PARAM_MIN => 1,
 369                                 ApiBase::PARAM_MAX => ApiBase::LIMIT_BIG1,
 370                                 ApiBase::PARAM_MAX2 => ApiBase::LIMIT_BIG2
 371                         ],
 372                         'witheditsonly' => false,
 373                         'activeusers' => [
 374                                 ApiBase::PARAM_DFLT => false,
 375                                 ApiBase::PARAM_HELP_MSG => [
 376                                         'apihelp-query+allusers-param-activeusers',
 377                                         $this->getConfig()->get( 'ActiveUserDays' )
 378                                 ],
 379                         ],
 380                         'attachedwiki' => null,
 381                 ];
 382         }
 383
 384         protected function getExamplesMessages() {
 385                 return [
 386                         'action=query&list=allusers&aufrom=Y'
 387                                 => 'apihelp-query+allusers-example-Y',
 388                 ];
 389         }
 390
 391         public function getHelpUrls() {
 392                 return 'https://www.mediawiki.org/wiki/Special:MyLanguage/API:Allusers';
 393         }
 394 }