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<?php
/**
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
*/
namespace MediaWiki\Block;
use MediaWiki\ChangeTags\ChangeTags;
use MediaWiki\HookContainer\HookContainer;
use MediaWiki\HookContainer\HookRunner;
use MediaWiki\Logging\ManualLogEntry;
use MediaWiki\Message\Message;
use MediaWiki\Permissions\Authority;
use MediaWiki\Status\Status;
use MediaWiki\User\UserFactory;
use MediaWiki\User\UserIdentity;
use RevisionDeleteUser;
/**
* Backend class for unblocking users
*
* @since 1.36
*/
class UnblockUser {
private BlockPermissionChecker $blockPermissionChecker;
private DatabaseBlockStore $blockStore;
private BlockTargetFactory $blockTargetFactory;
private UserFactory $userFactory;
private HookRunner $hookRunner;
/** @var BlockTarget|null */
private $target;
private ?DatabaseBlock $block;
private ?DatabaseBlock $blockToRemove = null;
/** @var Authority */
private $performer;
/** @var string */
private $reason;
/** @var array */
private $tags = [];
/**
* @param BlockPermissionCheckerFactory $blockPermissionCheckerFactory
* @param DatabaseBlockStore $blockStore
* @param BlockTargetFactory $blockTargetFactory
* @param UserFactory $userFactory
* @param HookContainer $hookContainer
* @param DatabaseBlock|null $blockToRemove
* @param UserIdentity|string|null $target
* @param Authority $performer
* @param string $reason
* @param string[] $tags
*/
public function __construct(
BlockPermissionCheckerFactory $blockPermissionCheckerFactory,
DatabaseBlockStore $blockStore,
BlockTargetFactory $blockTargetFactory,
UserFactory $userFactory,
HookContainer $hookContainer,
?DatabaseBlock $blockToRemove,
$target,
Authority $performer,
string $reason,
array $tags = []
) {
// Process dependencies
$this->blockStore = $blockStore;
$this->blockTargetFactory = $blockTargetFactory;
$this->userFactory = $userFactory;
$this->hookRunner = new HookRunner( $hookContainer );
// Process params
if ( $blockToRemove !== null ) {
$this->blockToRemove = $blockToRemove;
$this->target = $blockToRemove->getTarget();
} elseif ( $target instanceof BlockTarget ) {
$this->target = $target;
} else {
// TODO: deprecate (T382106)
$this->target = $this->blockTargetFactory->newFromLegacyUnion( $target );
}
$this->blockPermissionChecker = $blockPermissionCheckerFactory
->newChecker(
$performer
);
$this->performer = $performer;
$this->reason = $reason;
$this->tags = $tags;
}
/**
* Unblock user
*/
public function unblock(): Status {
$status = Status::newGood();
$this->block = $this->getBlockToRemove( $status );
if ( !$status->isOK() ) {
return $status;
}
$blockPermissionCheckResult = $this->blockPermissionChecker->checkBlockPermissions( $this->target );
if ( $blockPermissionCheckResult !== true ) {
return $status->fatal( $blockPermissionCheckResult );
}
$basePermissionCheckResult = $this->blockPermissionChecker->checkBasePermissions(
$this->block instanceof DatabaseBlock && $this->block->getHideName()
);
if ( $basePermissionCheckResult !== true ) {
return $status->fatal( $basePermissionCheckResult );
}
if ( count( $this->tags ) !== 0 ) {
$status->merge(
ChangeTags::canAddTagsAccompanyingChange(
$this->tags,
$this->performer
)
);
}
if ( !$status->isOK() ) {
return $status;
}
return $this->unblockUnsafe();
}
/**
* Unblock user without any sort of permission checks
*
* @internal This is public to be called in a maintenance script.
* @return Status
*/
public function unblockUnsafe(): Status {
$status = Status::newGood();
$this->block ??= $this->getBlockToRemove( $status );
if ( !$status->isOK() ) {
return $status;
}
if ( $this->block === null ) {
return $status->fatal( 'ipb_cant_unblock', $this->target );
}
if (
$this->block->getType() === AbstractBlock::TYPE_RANGE &&
$this->target->getType() === AbstractBlock::TYPE_IP
) {
return $status->fatal( 'ipb_blocked_as_range', $this->target, $this->block->getTargetName() );
}
$denyReason = [ 'hookaborted' ];
$legacyUser = $this->userFactory->newFromAuthority( $this->performer );
if ( !$this->hookRunner->onUnblockUser( $this->block, $legacyUser, $denyReason ) ) {
foreach ( $denyReason as $key ) {
$status->fatal( $key );
}
return $status;
}
$deleteBlockStatus = $this->blockStore->deleteBlock( $this->block );
if ( !$deleteBlockStatus ) {
return $status->fatal( 'ipb_cant_unblock', $this->block->getTargetName() );
}
$this->hookRunner->onUnblockUserComplete( $this->block, $legacyUser );
// Unset _deleted fields as needed
$user = $this->block->getTargetUserIdentity();
if ( $this->block->getHideName() && $user ) {
$id = $user->getId();
RevisionDeleteUser::unsuppressUserName( $user->getName(), $id );
}
$this->log();
$status->setResult( $status->isOK(), $this->block );
return $status;
}
/**
* Log the unblock to Special:Log/block
*/
private function log() {
$page = $this->block->getRedactedTarget()->getLogPage();
$logEntry = new ManualLogEntry( 'block', 'unblock' );
$logEntry->setTarget( $page );
$logEntry->setComment( $this->reason );
$logEntry->setPerformer( $this->performer->getUser() );
$logEntry->addTags( $this->tags );
$logEntry->setRelations( [ 'ipb_id' => $this->block->getId() ] );
// Save the ID to log_params, since MW 1.44
$logEntry->addParameter( 'blockId', $this->block->getId() );
$logId = $logEntry->insert();
$logEntry->publish( $logId );
}
private function getBlockToRemove( Status $status ): ?DatabaseBlock {
if ( $this->blockToRemove !== null ) {
return $this->blockToRemove;
}
$activeBlocks = $this->blockStore->newListFromTarget(
$this->target, null, false, DatabaseBlockStore::AUTO_SPECIFIED );
if ( !$activeBlocks ) {
$status->fatal( 'ipb_cant_unblock', $this->target );
return null;
}
if ( count( $activeBlocks ) > 1 ) {
$status->fatal( 'ipb_cant_unblock_multiple_blocks',
count( $activeBlocks ), Message::listParam(
array_map(
static function ( $block ) {
return $block->getId();
}, $activeBlocks )
)
);
}
return $activeBlocks[0];
}
}