includes/specials/SpecialUserrights.php

   1 <?php
   2 /**
   3  * Implements Special:Userrights
   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  * @ingroup SpecialPage
  22  */
  23
  24 /**
  25  * Special page to allow managing user group membership
  26  *
  27  * @ingroup SpecialPage
  28  */
  29 class UserrightsPage extends SpecialPage {
  30         /**
  31          * The target of the local right-adjuster's interest.  Can be gotten from
  32          * either a GET parameter or a subpage-style parameter, so have a member
  33          * variable for it.
  34          * @var null|string $mTarget
  35          */
  36         protected $mTarget;
  37         /*
  38          * @var null|User $mFetchedUser The user object of the target username or null.
  39          */
  40         protected $mFetchedUser = null;
  41         protected $isself = false;
  42
  43         public function __construct() {
  44                 parent::__construct( 'Userrights' );
  45         }
  46
  47         public function doesWrites() {
  48                 return true;
  49         }
  50
  51         /**
  52          * Check whether the current user (from context) can change the target user's rights.
  53          *
  54          * @param User $targetUser User whose rights are being changed
  55          * @param bool $checkIfSelf If false, assume that the current user can add/remove groups defined
  56          *   in $wgGroupsAddToSelf / $wgGroupsRemoveFromSelf, without checking if it's the same as target
  57          *   user
  58          * @return bool
  59          */
  60         public function userCanChangeRights( $targetUser, $checkIfSelf = true ) {
  61                 $isself = $this->getUser()->equals( $targetUser );
  62
  63                 $available = $this->changeableGroups();
  64                 if ( $targetUser->getId() == 0 ) {
  65                         return false;
  66                 }
  67
  68                 return !empty( $available['add'] )
  69                         || !empty( $available['remove'] )
  70                         || ( ( $isself || !$checkIfSelf ) &&
  71                                 ( !empty( $available['add-self'] )
  72                                         || !empty( $available['remove-self'] ) ) );
  73         }
  74
  75         /**
  76          * Manage forms to be shown according to posted data.
  77          * Depending on the submit button used, call a form or a save function.
  78          *
  79          * @param string|null $par String if any subpage provided, else null
  80          * @throws UserBlockedError|PermissionsError
  81          */
  82         public function execute( $par ) {
  83                 $user = $this->getUser();
  84                 $request = $this->getRequest();
  85                 $session = $request->getSession();
  86                 $out = $this->getOutput();
  87
  88                 $out->addModules( [ 'mediawiki.special.userrights' ] );
  89
  90                 if ( $par !== null ) {
  91                         $this->mTarget = $par;
  92                 } else {
  93                         $this->mTarget = $request->getVal( 'user' );
  94                 }
  95
  96                 if ( is_string( $this->mTarget ) ) {
  97                         $this->mTarget = trim( $this->mTarget );
  98                 }
  99
 100                 if ( $this->mTarget !== null && User::getCanonicalName( $this->mTarget ) === $user->getName() ) {
 101                         $this->isself = true;
 102                 }
 103
 104                 $fetchedStatus = $this->fetchUser( $this->mTarget, true );
 105                 if ( $fetchedStatus->isOK() ) {
 106                         $this->mFetchedUser = $fetchedStatus->value;
 107                         if ( $this->mFetchedUser instanceof User ) {
 108                                 // Set the 'relevant user' in the skin, so it displays links like Contributions,
 109                                 // User logs, UserRights, etc.
 110                                 $this->getSkin()->setRelevantUser( $this->mFetchedUser );
 111                         }
 112                 }
 113
 114                 // show a successbox, if the user rights was saved successfully
 115                 if (
 116                         $session->get( 'specialUserrightsSaveSuccess' ) &&
 117                         $this->mFetchedUser !== null
 118                 ) {
 119                         // Remove session data for the success message
 120                         $session->remove( 'specialUserrightsSaveSuccess' );
 121
 122                         $out->addModuleStyles( 'mediawiki.notification.convertmessagebox.styles' );
 123                         $out->addHTML(
 124                                 Html::rawElement(
 125                                         'div',
 126                                         [
 127                                                 'class' => 'mw-notify-success successbox',
 128                                                 'id' => 'mw-preferences-success',
 129                                                 'data-mw-autohide' => 'false',
 130                                         ],
 131                                         Html::element(
 132                                                 'p',
 133                                                 [],
 134                                                 $this->msg( 'savedrights', $this->mFetchedUser->getName() )->text()
 135                                         )
 136                                 )
 137                         );
 138                 }
 139
 140                 $this->setHeaders();
 141                 $this->outputHeader();
 142
 143                 $out->addModuleStyles( 'mediawiki.special' );
 144                 $this->addHelpLink( 'Help:Assigning permissions' );
 145
 146                 $this->switchForm();
 147
 148                 if (
 149                         $request->wasPosted() &&
 150                         $request->getCheck( 'saveusergroups' ) &&
 151                         $this->mTarget !== null &&
 152                         $user->matchEditToken( $request->getVal( 'wpEditToken' ), $this->mTarget )
 153                 ) {
 154                         /*
 155                         * If the user is blocked and they only have "partial" access
 156                         * (e.g. they don't have the userrights permission), then don't
 157                         * allow them to change any user rights.
 158                         */
 159                         if ( $user->isBlocked() && !$user->isAllowed( 'userrights' ) ) {
 160                                 throw new UserBlockedError( $user->getBlock() );
 161                         }
 162
 163                         $this->checkReadOnly();
 164
 165                         // save settings
 166                         if ( !$fetchedStatus->isOK() ) {
 167                                 $this->getOutput()->addWikiText( $fetchedStatus->getWikiText() );
 168
 169                                 return;
 170                         }
 171
 172                         $targetUser = $this->mFetchedUser;
 173                         if ( $targetUser instanceof User ) { // UserRightsProxy doesn't have this method (T63252)
 174                                 $targetUser->clearInstanceCache(); // T40989
 175                         }
 176
 177                         if ( $request->getVal( 'conflictcheck-originalgroups' )
 178                                 !== implode( ',', $targetUser->getGroups() )
 179                         ) {
 180                                 $out->addWikiMsg( 'userrights-conflict' );
 181                         } else {
 182                                 $status = $this->saveUserGroups(
 183                                         $this->mTarget,
 184                                         $request->getVal( 'user-reason' ),
 185                                         $targetUser
 186                                 );
 187
 188                                 if ( $status->isOK() ) {
 189                                         // Set session data for the success message
 190                                         $session->set( 'specialUserrightsSaveSuccess', 1 );
 191
 192                                         $out->redirect( $this->getSuccessURL() );
 193                                         return;
 194                                 } else {
 195                                         // Print an error message and redisplay the form
 196                                         $out->addWikiText( '<div class="error">' . $status->getWikiText() . '</div>' );
 197                                 }
 198                         }
 199                 }
 200
 201                 // show some more forms
 202                 if ( $this->mTarget !== null ) {
 203                         $this->editUserGroupsForm( $this->mTarget );
 204                 }
 205         }
 206
 207         function getSuccessURL() {
 208                 return $this->getPageTitle( $this->mTarget )->getFullURL();
 209         }
 210
 211         /**
 212          * Returns true if this user rights form can set and change user group expiries.
 213          * Subclasses may wish to override this to return false.
 214          *
 215          * @return bool
 216          */
 217         public function canProcessExpiries() {
 218                 return !$this->getConfig()->get( 'DisableUserGroupExpiry' );
 219         }
 220
 221         /**
 222          * Converts a user group membership expiry string into a timestamp. Words like
 223          * 'existing' or 'other' should have been filtered out before calling this
 224          * function.
 225          *
 226          * @param string $expiry
 227          * @return string|null|false A string containing a valid timestamp, or null
 228          *   if the expiry is infinite, or false if the timestamp is not valid
 229          */
 230         public static function expiryToTimestamp( $expiry ) {
 231                 if ( wfIsInfinity( $expiry ) ) {
 232                         return null;
 233                 }
 234
 235                 $unix = strtotime( $expiry );
 236
 237                 if ( !$unix || $unix === -1 ) {
 238                         return false;
 239                 }
 240
 241                 // @todo FIXME: Non-qualified absolute times are not in users specified timezone
 242                 // and there isn't notice about it in the ui (see ProtectionForm::getExpiry)
 243                 return wfTimestamp( TS_MW, $unix );
 244         }
 245
 246         /**
 247          * Save user groups changes in the database.
 248          * Data comes from the editUserGroupsForm() form function
 249          *
 250          * @param string $username Username to apply changes to.
 251          * @param string $reason Reason for group change
 252          * @param User|UserRightsProxy $user Target user object.
 253          * @return Status
 254          */
 255         protected function saveUserGroups( $username, $reason, $user ) {
 256                 $allgroups = $this->getAllGroups();
 257                 $addgroup = [];
 258                 $groupExpiries = []; // associative array of (group name => expiry)
 259                 $removegroup = [];
 260                 $existingUGMs = $user->getGroupMemberships();
 261
 262                 // This could possibly create a highly unlikely race condition if permissions are changed between
 263                 //  when the form is loaded and when the form is saved. Ignoring it for the moment.
 264                 foreach ( $allgroups as $group ) {
 265                         // We'll tell it to remove all unchecked groups, and add all checked groups.
 266                         // Later on, this gets filtered for what can actually be removed
 267                         if ( $this->getRequest()->getCheck( "wpGroup-$group" ) ) {
 268                                 $addgroup[] = $group;
 269
 270                                 if ( $this->canProcessExpiries() ) {
 271                                         // read the expiry information from the request
 272                                         $expiryDropdown = $this->getRequest()->getVal( "wpExpiry-$group" );
 273                                         if ( $expiryDropdown === 'existing' ) {
 274                                                 continue;
 275                                         }
 276
 277                                         if ( $expiryDropdown === 'other' ) {
 278                                                 $expiryValue = $this->getRequest()->getVal( "wpExpiry-$group-other" );
 279                                         } else {
 280                                                 $expiryValue = $expiryDropdown;
 281                                         }
 282
 283                                         // validate the expiry
 284                                         $groupExpiries[$group] = self::expiryToTimestamp( $expiryValue );
 285
 286                                         if ( $groupExpiries[$group] === false ) {
 287                                                 return Status::newFatal( 'userrights-invalid-expiry', $group );
 288                                         }
 289
 290                                         // not allowed to have things expiring in the past
 291                                         if ( $groupExpiries[$group] && $groupExpiries[$group] < wfTimestampNow() ) {
 292                                                 return Status::newFatal( 'userrights-expiry-in-past', $group );
 293                                         }
 294
 295                                         // if the user can only add this group (not remove it), the expiry time
 296                                         // cannot be brought forward (T156784)
 297                                         if ( !$this->canRemove( $group ) &&
 298                                                 isset( $existingUGMs[$group] ) &&
 299                                                 ( $existingUGMs[$group]->getExpiry() ?: 'infinity' ) >
 300                                                         ( $groupExpiries[$group] ?: 'infinity' )
 301                                         ) {
 302                                                 return Status::newFatal( 'userrights-cannot-shorten-expiry', $group );
 303                                         }
 304                                 }
 305                         } else {
 306                                 $removegroup[] = $group;
 307                         }
 308                 }
 309
 310                 $this->doSaveUserGroups( $user, $addgroup, $removegroup, $reason, [], $groupExpiries );
 311
 312                 return Status::newGood();
 313         }
 314
 315         /**
 316          * Save user groups changes in the database. This function does not throw errors;
 317          * instead, it ignores groups that the performer does not have permission to set.
 318          *
 319          * @param User|UserRightsProxy $user
 320          * @param array $add Array of groups to add
 321          * @param array $remove Array of groups to remove
 322          * @param string $reason Reason for group change
 323          * @param array $tags Array of change tags to add to the log entry
 324          * @param array $groupExpiries Associative array of (group name => expiry),
 325          *   containing only those groups that are to have new expiry values set
 326          * @return array Tuple of added, then removed groups
 327          */
 328         function doSaveUserGroups( $user, $add, $remove, $reason = '', $tags = [],
 329                 $groupExpiries = [] ) {
 330
 331                 // Validate input set...
 332                 $isself = $user->getName() == $this->getUser()->getName();
 333                 $groups = $user->getGroups();
 334                 $ugms = $user->getGroupMemberships();
 335                 $changeable = $this->changeableGroups();
 336                 $addable = array_merge( $changeable['add'], $isself ? $changeable['add-self'] : [] );
 337                 $removable = array_merge( $changeable['remove'], $isself ? $changeable['remove-self'] : [] );
 338
 339                 $remove = array_unique(
 340                         array_intersect( (array)$remove, $removable, $groups ) );
 341                 $add = array_intersect( (array)$add, $addable );
 342
 343                 // add only groups that are not already present or that need their expiry updated,
 344                 // UNLESS the user can only add this group (not remove it) and the expiry time
 345                 // is being brought forward (T156784)
 346                 $add = array_filter( $add,
 347                         function( $group ) use ( $groups, $groupExpiries, $removable, $ugms ) {
 348                                 if ( isset( $groupExpiries[$group] ) &&
 349                                         !in_array( $group, $removable ) &&
 350                                         isset( $ugms[$group] ) &&
 351                                         ( $ugms[$group]->getExpiry() ?: 'infinity' ) >
 352                                                 ( $groupExpiries[$group] ?: 'infinity' )
 353                                 ) {
 354                                         return false;
 355                                 }
 356                                 return !in_array( $group, $groups ) || array_key_exists( $group, $groupExpiries );
 357                         } );
 358
 359                 Hooks::run( 'ChangeUserGroups', [ $this->getUser(), $user, &$add, &$remove ] );
 360
 361                 $oldGroups = $groups;
 362                 $oldUGMs = $user->getGroupMemberships();
 363                 $newGroups = $oldGroups;
 364
 365                 // Remove groups, then add new ones/update expiries of existing ones
 366                 if ( $remove ) {
 367                         foreach ( $remove as $index => $group ) {
 368                                 if ( !$user->removeGroup( $group ) ) {
 369                                         unset( $remove[$index] );
 370                                 }
 371                         }
 372                         $newGroups = array_diff( $newGroups, $remove );
 373                 }
 374                 if ( $add ) {
 375                         foreach ( $add as $index => $group ) {
 376                                 $expiry = isset( $groupExpiries[$group] ) ? $groupExpiries[$group] : null;
 377                                 if ( !$user->addGroup( $group, $expiry ) ) {
 378                                         unset( $add[$index] );
 379                                 }
 380                         }
 381                         $newGroups = array_merge( $newGroups, $add );
 382                 }
 383                 $newGroups = array_unique( $newGroups );
 384                 $newUGMs = $user->getGroupMemberships();
 385
 386                 // Ensure that caches are cleared
 387                 $user->invalidateCache();
 388
 389                 // update groups in external authentication database
 390                 Hooks::run( 'UserGroupsChanged', [ $user, $add, $remove, $this->getUser(), $reason ] );
 391                 MediaWiki\Auth\AuthManager::callLegacyAuthPlugin(
 392                         'updateExternalDBGroups', [ $user, $add, $remove ]
 393                 );
 394
 395                 wfDebug( 'oldGroups: ' . print_r( $oldGroups, true ) . "\n" );
 396                 wfDebug( 'newGroups: ' . print_r( $newGroups, true ) . "\n" );
 397                 wfDebug( 'oldUGMs: ' . print_r( $oldUGMs, true ) . "\n" );
 398                 wfDebug( 'newUGMs: ' . print_r( $newUGMs, true ) . "\n" );
 399                 // Deprecated in favor of UserGroupsChanged hook
 400                 Hooks::run( 'UserRights', [ &$user, $add, $remove ], '1.26' );
 401
 402                 // Only add a log entry if something actually changed
 403                 if ( $newGroups != $oldGroups || $newUGMs != $oldUGMs ) {
 404                         $this->addLogEntry( $user, $oldGroups, $newGroups, $reason, $tags, $oldUGMs, $newUGMs );
 405                 }
 406
 407                 return [ $add, $remove ];
 408         }
 409
 410         /**
 411          * Serialise a UserGroupMembership object for storage in the log_params section
 412          * of the logging table. Only keeps essential data, removing redundant fields.
 413          *
 414          * @param UserGroupMembership|null $ugm May be null if things get borked
 415          * @return array
 416          */
 417         protected static function serialiseUgmForLog( $ugm ) {
 418                 if ( !$ugm instanceof UserGroupMembership ) {
 419                         return null;
 420                 }
 421                 return [ 'expiry' => $ugm->getExpiry() ];
 422         }
 423
 424         /**
 425          * Add a rights log entry for an action.
 426          * @param User|UserRightsProxy $user
 427          * @param array $oldGroups
 428          * @param array $newGroups
 429          * @param array $reason
 430          * @param array $tags Change tags for the log entry
 431          * @param array $oldUGMs Associative array of (group name => UserGroupMembership)
 432          * @param array $newUGMs Associative array of (group name => UserGroupMembership)
 433          */
 434         protected function addLogEntry( $user, $oldGroups, $newGroups, $reason, $tags,
 435                 $oldUGMs, $newUGMs ) {
 436
 437                 // make sure $oldUGMs and $newUGMs are in the same order, and serialise
 438                 // each UGM object to a simplified array
 439                 $oldUGMs = array_map( function( $group ) use ( $oldUGMs ) {
 440                         return isset( $oldUGMs[$group] ) ?
 441                                 self::serialiseUgmForLog( $oldUGMs[$group] ) :
 442                                 null;
 443                 }, $oldGroups );
 444                 $newUGMs = array_map( function( $group ) use ( $newUGMs ) {
 445                         return isset( $newUGMs[$group] ) ?
 446                                 self::serialiseUgmForLog( $newUGMs[$group] ) :
 447                                 null;
 448                 }, $newGroups );
 449
 450                 $logEntry = new ManualLogEntry( 'rights', 'rights' );
 451                 $logEntry->setPerformer( $this->getUser() );
 452                 $logEntry->setTarget( $user->getUserPage() );
 453                 $logEntry->setComment( $reason );
 454                 $logEntry->setParameters( [
 455                         '4::oldgroups' => $oldGroups,
 456                         '5::newgroups' => $newGroups,
 457                         'oldmetadata' => $oldUGMs,
 458                         'newmetadata' => $newUGMs,
 459                 ] );
 460                 $logid = $logEntry->insert();
 461                 if ( count( $tags ) ) {
 462                         $logEntry->setTags( $tags );
 463                 }
 464                 $logEntry->publish( $logid );
 465         }
 466
 467         /**
 468          * Edit user groups membership
 469          * @param string $username Name of the user.
 470          */
 471         function editUserGroupsForm( $username ) {
 472                 $status = $this->fetchUser( $username, true );
 473                 if ( !$status->isOK() ) {
 474                         $this->getOutput()->addWikiText( $status->getWikiText() );
 475
 476                         return;
 477                 } else {
 478                         $user = $status->value;
 479                 }
 480
 481                 $groups = $user->getGroups();
 482                 $groupMemberships = $user->getGroupMemberships();
 483                 $this->showEditUserGroupsForm( $user, $groups, $groupMemberships );
 484
 485                 // This isn't really ideal logging behavior, but let's not hide the
 486                 // interwiki logs if we're using them as is.
 487                 $this->showLogFragment( $user, $this->getOutput() );
 488         }
 489
 490         /**
 491          * Normalize the input username, which may be local or remote, and
 492          * return a user (or proxy) object for manipulating it.
 493          *
 494          * Side effects: error output for invalid access
 495          * @param string $username
 496          * @param bool $writing
 497          * @return Status
 498          */
 499         public function fetchUser( $username, $writing = true ) {
 500                 $parts = explode( $this->getConfig()->get( 'UserrightsInterwikiDelimiter' ), $username );
 501                 if ( count( $parts ) < 2 ) {
 502                         $name = trim( $username );
 503                         $database = '';
 504                 } else {
 505                         list( $name, $database ) = array_map( 'trim', $parts );
 506
 507                         if ( $database == wfWikiID() ) {
 508                                 $database = '';
 509                         } else {
 510                                 if ( $writing && !$this->getUser()->isAllowed( 'userrights-interwiki' ) ) {
 511                                         return Status::newFatal( 'userrights-no-interwiki' );
 512                                 }
 513                                 if ( !UserRightsProxy::validDatabase( $database ) ) {
 514                                         return Status::newFatal( 'userrights-nodatabase', $database );
 515                                 }
 516                         }
 517                 }
 518
 519                 if ( $name === '' ) {
 520                         return Status::newFatal( 'nouserspecified' );
 521                 }
 522
 523                 if ( $name[0] == '#' ) {
 524                         // Numeric ID can be specified...
 525                         // We'll do a lookup for the name internally.
 526                         $id = intval( substr( $name, 1 ) );
 527
 528                         if ( $database == '' ) {
 529                                 $name = User::whoIs( $id );
 530                         } else {
 531                                 $name = UserRightsProxy::whoIs( $database, $id );
 532                         }
 533
 534                         if ( !$name ) {
 535                                 return Status::newFatal( 'noname' );
 536                         }
 537                 } else {
 538                         $name = User::getCanonicalName( $name );
 539                         if ( $name === false ) {
 540                                 // invalid name
 541                                 return Status::newFatal( 'nosuchusershort', $username );
 542                         }
 543                 }
 544
 545                 if ( $database == '' ) {
 546                         $user = User::newFromName( $name );
 547                 } else {
 548                         $user = UserRightsProxy::newFromName( $database, $name );
 549                 }
 550
 551                 if ( !$user || $user->isAnon() ) {
 552                         return Status::newFatal( 'nosuchusershort', $username );
 553                 }
 554
 555                 return Status::newGood( $user );
 556         }
 557
 558         /**
 559          * @since 1.15
 560          *
 561          * @param array $ids
 562          *
 563          * @return string
 564          */
 565         public function makeGroupNameList( $ids ) {
 566                 if ( empty( $ids ) ) {
 567                         return $this->msg( 'rightsnone' )->inContentLanguage()->text();
 568                 } else {
 569                         return implode( ', ', $ids );
 570                 }
 571         }
 572
 573         /**
 574          * Output a form to allow searching for a user
 575          */
 576         function switchForm() {
 577                 $this->getOutput()->addModules( 'mediawiki.userSuggest' );
 578
 579                 $this->getOutput()->addHTML(
 580                         Html::openElement(
 581                                 'form',
 582                                 [
 583                                         'method' => 'get',
 584                                         'action' => wfScript(),
 585                                         'name' => 'uluser',
 586                                         'id' => 'mw-userrights-form1'
 587                                 ]
 588                         ) .
 589                         Html::hidden( 'title', $this->getPageTitle()->getPrefixedText() ) .
 590                         Xml::fieldset( $this->msg( 'userrights-lookup-user' )->text() ) .
 591                         Xml::inputLabel(
 592                                 $this->msg( 'userrights-user-editname' )->text(),
 593                                 'user',
 594                                 'username',
 595                                 30,
 596                                 str_replace( '_', ' ', $this->mTarget ),
 597                                 [
 598                                         'class' => 'mw-autocomplete-user', // used by mediawiki.userSuggest
 599                                 ] + (
 600                                         // Set autofocus on blank input and error input
 601                                         $this->mFetchedUser === null ? [ 'autofocus' => '' ] : []
 602                                 )
 603                         ) . ' ' .
 604                         Xml::submitButton(
 605                                 $this->msg( 'editusergroup' )->text()
 606                         ) .
 607                         Html::closeElement( 'fieldset' ) .
 608                         Html::closeElement( 'form' ) . "\n"
 609                 );
 610         }
 611
 612         /**
 613          * Show the form to edit group memberships.
 614          *
 615          * @param User|UserRightsProxy $user User or UserRightsProxy you're editing
 616          * @param array $groups Array of groups the user is in. Not used by this implementation
 617          *   anymore, but kept for backward compatibility with subclasses
 618          * @param array $groupMemberships Associative array of (group name => UserGroupMembership
 619          *   object) containing the groups the user is in
 620          */
 621         protected function showEditUserGroupsForm( $user, $groups, $groupMemberships ) {
 622                 $list = $membersList = $tempList = $tempMembersList = [];
 623                 foreach ( $groupMemberships as $ugm ) {
 624                         $linkG = UserGroupMembership::getLink( $ugm, $this->getContext(), 'html' );
 625                         $linkM = UserGroupMembership::getLink( $ugm, $this->getContext(), 'html',
 626                                 $user->getName() );
 627                         if ( $ugm->getExpiry() ) {
 628                                 $tempList[] = $linkG;
 629                                 $tempMembersList[] = $linkM;
 630                         } else {
 631                                 $list[] = $linkG;
 632                                 $membersList[] = $linkM;
 633
 634                         }
 635                 }
 636
 637                 $autoList = [];
 638                 $autoMembersList = [];
 639                 if ( $user instanceof User ) {
 640                         foreach ( Autopromote::getAutopromoteGroups( $user ) as $group ) {
 641                                 $autoList[] = UserGroupMembership::getLink( $group, $this->getContext(), 'html' );
 642                                 $autoMembersList[] = UserGroupMembership::getLink( $group, $this->getContext(),
 643                                         'html', $user->getName() );
 644                         }
 645                 }
 646
 647                 $language = $this->getLanguage();
 648                 $displayedList = $this->msg( 'userrights-groupsmember-type' )
 649                         ->rawParams(
 650                                 $language->commaList( array_merge( $tempList, $list ) ),
 651                                 $language->commaList( array_merge( $tempMembersList, $membersList ) )
 652                         )->escaped();
 653                 $displayedAutolist = $this->msg( 'userrights-groupsmember-type' )
 654                         ->rawParams(
 655                                 $language->commaList( $autoList ),
 656                                 $language->commaList( $autoMembersList )
 657                         )->escaped();
 658
 659                 $grouplist = '';
 660                 $count = count( $list );
 661                 if ( $count > 0 ) {
 662                         $grouplist = $this->msg( 'userrights-groupsmember' )
 663                                 ->numParams( $count )
 664                                 ->params( $user->getName() )
 665                                 ->parse();
 666                         $grouplist = '<p>' . $grouplist . ' ' . $displayedList . "</p>\n";
 667                 }
 668
 669                 $count = count( $autoList );
 670                 if ( $count > 0 ) {
 671                         $autogrouplistintro = $this->msg( 'userrights-groupsmember-auto' )
 672                                 ->numParams( $count )
 673                                 ->params( $user->getName() )
 674                                 ->parse();
 675                         $grouplist .= '<p>' . $autogrouplistintro . ' ' . $displayedAutolist . "</p>\n";
 676                 }
 677
 678                 $userToolLinks = Linker::userToolLinks(
 679                         $user->getId(),
 680                         $user->getName(),
 681                         false, /* default for redContribsWhenNoEdits */
 682                         Linker::TOOL_LINKS_EMAIL /* Add "send e-mail" link */
 683                 );
 684
 685                 list( $groupCheckboxes, $canChangeAny ) =
 686                         $this->groupCheckboxes( $groupMemberships, $user );
 687                 $this->getOutput()->addHTML(
 688                         Xml::openElement(
 689                                 'form',
 690                                 [
 691                                         'method' => 'post',
 692                                         'action' => $this->getPageTitle()->getLocalURL(),
 693                                         'name' => 'editGroup',
 694                                         'id' => 'mw-userrights-form2'
 695                                 ]
 696                         ) .
 697                         Html::hidden( 'user', $this->mTarget ) .
 698                         Html::hidden( 'wpEditToken', $this->getUser()->getEditToken( $this->mTarget ) ) .
 699                         Html::hidden(
 700                                 'conflictcheck-originalgroups',
 701                                 implode( ',', $user->getGroups() )
 702                         ) . // Conflict detection
 703                         Xml::openElement( 'fieldset' ) .
 704                         Xml::element(
 705                                 'legend',
 706                                 [],
 707                                 $this->msg(
 708                                         $canChangeAny ? 'userrights-editusergroup' : 'userrights-viewusergroup',
 709                                         $user->getName()
 710                                 )->text()
 711                         ) .
 712                         $this->msg(
 713                                 $canChangeAny ? 'editinguser' : 'viewinguserrights'
 714                         )->params( wfEscapeWikiText( $user->getName() ) )
 715                                 ->rawParams( $userToolLinks )->parse()
 716                 );
 717                 if ( $canChangeAny ) {
 718                         $this->getOutput()->addHTML(
 719                                 $this->msg( 'userrights-groups-help', $user->getName() )->parse() .
 720                                 $grouplist .
 721                                 $groupCheckboxes .
 722                                 Xml::openElement( 'table', [ 'id' => 'mw-userrights-table-outer' ] ) .
 723                                         "<tr>
 724                                                 <td class='mw-label'>" .
 725                                                         Xml::label( $this->msg( 'userrights-reason' )->text(), 'wpReason' ) .
 726                                                 "</td>
 727                                                 <td class='mw-input'>" .
 728                                                         Xml::input( 'user-reason', 60, $this->getRequest()->getVal( 'user-reason', false ),
 729                                                                 [ 'id' => 'wpReason', 'maxlength' => 255 ] ) .
 730                                                 "</td>
 731                                         </tr>
 732                                         <tr>
 733                                                 <td></td>
 734                                                 <td class='mw-submit'>" .
 735                                                         Xml::submitButton( $this->msg( 'saveusergroups', $user->getName() )->text(),
 736                                                                 [ 'name' => 'saveusergroups' ] +
 737                                                                         Linker::tooltipAndAccesskeyAttribs( 'userrights-set' )
 738                                                         ) .
 739                                                 "</td>
 740                                         </tr>" .
 741                                 Xml::closeElement( 'table' ) . "\n"
 742                         );
 743                 } else {
 744                         $this->getOutput()->addHTML( $grouplist );
 745                 }
 746                 $this->getOutput()->addHTML(
 747                         Xml::closeElement( 'fieldset' ) .
 748                         Xml::closeElement( 'form' ) . "\n"
 749                 );
 750         }
 751
 752         /**
 753          * Returns an array of all groups that may be edited
 754          * @return array Array of groups that may be edited.
 755          */
 756         protected static function getAllGroups() {
 757                 return User::getAllGroups();
 758         }
 759
 760         /**
 761          * Adds a table with checkboxes where you can select what groups to add/remove
 762          *
 763          * @param array $usergroups Associative array of (group name as string =>
 764          *   UserGroupMembership object) for groups the user belongs to
 765          * @param User $user
 766          * @return Array with 2 elements: the XHTML table element with checkxboes, and
 767          * whether any groups are changeable
 768          */
 769         private function groupCheckboxes( $usergroups, $user ) {
 770                 $allgroups = $this->getAllGroups();
 771                 $ret = '';
 772
 773                 // Get the list of preset expiry times from the system message
 774                 $expiryOptionsMsg = $this->msg( 'userrights-expiry-options' )->inContentLanguage();
 775                 $expiryOptions = $expiryOptionsMsg->isDisabled() ?
 776                         [] :
 777                         explode( ',', $expiryOptionsMsg->text() );
 778
 779                 // Put all column info into an associative array so that extensions can
 780                 // more easily manage it.
 781                 $columns = [ 'unchangeable' => [], 'changeable' => [] ];
 782
 783                 foreach ( $allgroups as $group ) {
 784                         $set = isset( $usergroups[$group] );
 785                         // Users who can add the group, but not remove it, can only lengthen
 786                         // expiries, not shorten them. So they should only see the expiry
 787                         // dropdown if the group currently has a finite expiry
 788                         $canOnlyLengthenExpiry = ( $set && $this->canAdd( $group ) &&
 789                                  !$this->canRemove( $group ) && $usergroups[$group]->getExpiry() );
 790                         // Should the checkbox be disabled?
 791                         $disabledCheckbox = !(
 792                                 ( $set && $this->canRemove( $group ) ) ||
 793                                 ( !$set && $this->canAdd( $group ) ) );
 794                         // Should the expiry elements be disabled?
 795                         $disabledExpiry = $disabledCheckbox && !$canOnlyLengthenExpiry;
 796                         // Do we need to point out that this action is irreversible?
 797                         $irreversible = !$disabledCheckbox && (
 798                                 ( $set && !$this->canAdd( $group ) ) ||
 799                                 ( !$set && !$this->canRemove( $group ) ) );
 800
 801                         $checkbox = [
 802                                 'set' => $set,
 803                                 'disabled' => $disabledCheckbox,
 804                                 'disabled-expiry' => $disabledExpiry,
 805                                 'irreversible' => $irreversible
 806                         ];
 807
 808                         if ( $disabledCheckbox && $disabledExpiry ) {
 809                                 $columns['unchangeable'][$group] = $checkbox;
 810                         } else {
 811                                 $columns['changeable'][$group] = $checkbox;
 812                         }
 813                 }
 814
 815                 // Build the HTML table
 816                 $ret .= Xml::openElement( 'table', [ 'class' => 'mw-userrights-groups' ] ) .
 817                         "<tr>\n";
 818                 foreach ( $columns as $name => $column ) {
 819                         if ( $column === [] ) {
 820                                 continue;
 821                         }
 822                         // Messages: userrights-changeable-col, userrights-unchangeable-col
 823                         $ret .= Xml::element(
 824                                 'th',
 825                                 null,
 826                                 $this->msg( 'userrights-' . $name . '-col', count( $column ) )->text()
 827                         );
 828                 }
 829
 830                 $ret .= "</tr>\n<tr>\n";
 831                 foreach ( $columns as $column ) {
 832                         if ( $column === [] ) {
 833                                 continue;
 834                         }
 835                         $ret .= "\t<td style='vertical-align:top;'>\n";
 836                         foreach ( $column as $group => $checkbox ) {
 837                                 $attr = $checkbox['disabled'] ? [ 'disabled' => 'disabled' ] : [];
 838
 839                                 $member = UserGroupMembership::getGroupMemberName( $group, $user->getName() );
 840                                 if ( $checkbox['irreversible'] ) {
 841                                         $text = $this->msg( 'userrights-irreversible-marker', $member )->text();
 842                                 } elseif ( $checkbox['disabled'] && !$checkbox['disabled-expiry'] ) {
 843                                         $text = $this->msg( 'userrights-no-shorten-expiry-marker', $member )->text();
 844                                 } else {
 845                                         $text = $member;
 846                                 }
 847                                 $checkboxHtml = Xml::checkLabel( $text, "wpGroup-" . $group,
 848                                         "wpGroup-" . $group, $checkbox['set'], $attr );
 849                                 $ret .= "\t\t" . ( ( $checkbox['disabled'] && $checkbox['disabled-expiry'] )
 850                                         ? Xml::tags( 'div', [ 'class' => 'mw-userrights-disabled' ], $checkboxHtml )
 851                                         : Xml::tags( 'div', [], $checkboxHtml )
 852                                 ) . "\n";
 853
 854                                 if ( $this->canProcessExpiries() ) {
 855                                         $uiUser = $this->getUser();
 856                                         $uiLanguage = $this->getLanguage();
 857
 858                                         $currentExpiry = isset( $usergroups[$group] ) ?
 859                                                 $usergroups[$group]->getExpiry() :
 860                                                 null;
 861
 862                                         // If the user can't modify the expiry, print the current expiry below
 863                                         // it in plain text. Otherwise provide UI to set/change the expiry
 864                                         if ( $checkbox['set'] &&
 865                                                 ( $checkbox['irreversible'] || $checkbox['disabled-expiry'] )
 866                                         ) {
 867                                                 if ( $currentExpiry ) {
 868                                                         $expiryFormatted = $uiLanguage->userTimeAndDate( $currentExpiry, $uiUser );
 869                                                         $expiryFormattedD = $uiLanguage->userDate( $currentExpiry, $uiUser );
 870                                                         $expiryFormattedT = $uiLanguage->userTime( $currentExpiry, $uiUser );
 871                                                         $expiryHtml = $this->msg( 'userrights-expiry-current' )->params(
 872                                                                 $expiryFormatted, $expiryFormattedD, $expiryFormattedT )->text();
 873                                                 } else {
 874                                                         $expiryHtml = $this->msg( 'userrights-expiry-none' )->text();
 875                                                 }
 876                                                 $expiryHtml .= "<br />\n";
 877                                         } else {
 878                                                 $expiryHtml = Xml::element( 'span', null,
 879                                                         $this->msg( 'userrights-expiry' )->text() );
 880                                                 $expiryHtml .= Xml::openElement( 'span' );
 881
 882                                                 // add a form element to set the expiry date
 883                                                 $expiryFormOptions = new XmlSelect(
 884                                                         "wpExpiry-$group",
 885                                                         "mw-input-wpExpiry-$group", // forward compatibility with HTMLForm
 886                                                         $currentExpiry ? 'existing' : 'infinite'
 887                                                 );
 888                                                 if ( $checkbox['disabled-expiry'] ) {
 889                                                         $expiryFormOptions->setAttribute( 'disabled', 'disabled' );
 890                                                 }
 891
 892                                                 if ( $currentExpiry ) {
 893                                                         $timestamp = $uiLanguage->userTimeAndDate( $currentExpiry, $uiUser );
 894                                                         $d = $uiLanguage->userDate( $currentExpiry, $uiUser );
 895                                                         $t = $uiLanguage->userTime( $currentExpiry, $uiUser );
 896                                                         $existingExpiryMessage = $this->msg( 'userrights-expiry-existing',
 897                                                                 $timestamp, $d, $t );
 898                                                         $expiryFormOptions->addOption( $existingExpiryMessage->text(), 'existing' );
 899                                                 }
 900
 901                                                 $expiryFormOptions->addOption(
 902                                                         $this->msg( 'userrights-expiry-none' )->text(),
 903                                                         'infinite'
 904                                                 );
 905                                                 $expiryFormOptions->addOption(
 906                                                         $this->msg( 'userrights-expiry-othertime' )->text(),
 907                                                         'other'
 908                                                 );
 909                                                 foreach ( $expiryOptions as $option ) {
 910                                                         if ( strpos( $option, ":" ) === false ) {
 911                                                                 $displayText = $value = $option;
 912                                                         } else {
 913                                                                 list( $displayText, $value ) = explode( ":", $option );
 914                                                         }
 915                                                         $expiryFormOptions->addOption( $displayText, htmlspecialchars( $value ) );
 916                                                 }
 917
 918                                                 // Add expiry dropdown
 919                                                 $expiryHtml .= $expiryFormOptions->getHTML() . '<br />';
 920
 921                                                 // Add custom expiry field
 922                                                 $attribs = [ 'id' => "mw-input-wpExpiry-$group-other" ];
 923                                                 if ( $checkbox['disabled-expiry'] ) {
 924                                                         $attribs['disabled'] = 'disabled';
 925                                                 }
 926                                                 $expiryHtml .= Xml::input( "wpExpiry-$group-other", 30, '', $attribs );
 927
 928                                                 // If the user group is set but the checkbox is disabled, mimic a
 929                                                 // checked checkbox in the form submission
 930                                                 if ( $checkbox['set'] && $checkbox['disabled'] ) {
 931                                                         $expiryHtml .= Html::hidden( "wpGroup-$group", 1 );
 932                                                 }
 933
 934                                                 $expiryHtml .= Xml::closeElement( 'span' );
 935                                         }
 936
 937                                         $divAttribs = [
 938                                                 'id' => "mw-userrights-nested-wpGroup-$group",
 939                                                 'class' => 'mw-userrights-nested',
 940                                         ];
 941                                         $ret .= "\t\t\t" . Xml::tags( 'div', $divAttribs, $expiryHtml ) . "\n";
 942                                 }
 943                         }
 944                         $ret .= "\t</td>\n";
 945                 }
 946                 $ret .= Xml::closeElement( 'tr' ) . Xml::closeElement( 'table' );
 947
 948                 return [ $ret, (bool)$columns['changeable'] ];
 949         }
 950
 951         /**
 952          * @param string $group The name of the group to check
 953          * @return bool Can we remove the group?
 954          */
 955         private function canRemove( $group ) {
 956                 $groups = $this->changeableGroups();
 957
 958                 return in_array(
 959                         $group,
 960                         $groups['remove'] ) || ( $this->isself && in_array( $group, $groups['remove-self'] )
 961                 );
 962         }
 963
 964         /**
 965          * @param string $group The name of the group to check
 966          * @return bool Can we add the group?
 967          */
 968         private function canAdd( $group ) {
 969                 $groups = $this->changeableGroups();
 970
 971                 return in_array(
 972                         $group,
 973                         $groups['add'] ) || ( $this->isself && in_array( $group, $groups['add-self'] )
 974                 );
 975         }
 976
 977         /**
 978          * Returns $this->getUser()->changeableGroups()
 979          *
 980          * @return array Array(
 981          *   'add' => array( addablegroups ),
 982          *   'remove' => array( removablegroups ),
 983          *   'add-self' => array( addablegroups to self ),
 984          *   'remove-self' => array( removable groups from self )
 985          *  )
 986          */
 987         function changeableGroups() {
 988                 return $this->getUser()->changeableGroups();
 989         }
 990
 991         /**
 992          * Show a rights log fragment for the specified user
 993          *
 994          * @param User $user User to show log for
 995          * @param OutputPage $output OutputPage to use
 996          */
 997         protected function showLogFragment( $user, $output ) {
 998                 $rightsLogPage = new LogPage( 'rights' );
 999                 $output->addHTML( Xml::element( 'h2', null, $rightsLogPage->getName()->text() ) );
1000                 LogEventsList::showLogExtract( $output, 'rights', $user->getUserPage() );
1001         }
1002
1003         /**
1004          * Return an array of subpages beginning with $search that this special page will accept.
1005          *
1006          * @param string $search Prefix to search for
1007          * @param int $limit Maximum number of results to return (usually 10)
1008          * @param int $offset Number of results to skip (usually 0)
1009          * @return string[] Matching subpages
1010          */
1011         public function prefixSearchSubpages( $search, $limit, $offset ) {
1012                 $user = User::newFromName( $search );
1013                 if ( !$user ) {
1014                         // No prefix suggestion for invalid user
1015                         return [];
1016                 }
1017                 // Autocomplete subpage as user list - public to allow caching
1018                 return UserNamePrefixSearch::search( 'public', $search, $limit, $offset );
1019         }
1020
1021         protected function getGroupName() {
1022                 return 'users';
1023         }
1024 }