ProtectedPagesPager.php

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<?php
use MediaWiki\Cache\LinkBatchFactory;
use MediaWiki\Linker\LinkRenderer;
use Wikimedia\Rdbms\ILoadBalancer;
 
class ProtectedPagesPager extends TablePager {
 
    public $mConds;
    private $type, $level, $namespace, $sizetype, $size, $indefonly, $cascadeonly, $noredirect;
 
    private $linkBatchFactory;
 
    private $commentStore;
 
    private $actorMigration;
 
    private $userCache;
 
    public function __construct(
        $form,
        $conds,
        $type,
        $level,
        $namespace,
        $sizetype,
        $size,
        $indefonly,
        $cascadeonly,
        $noredirect,
        LinkRenderer $linkRenderer,
        LinkBatchFactory $linkBatchFactory,
        ILoadBalancer $loadBalancer,
        CommentStore $commentStore,
        ActorMigration $actorMigration,
        UserCache $userCache
    ) {
        // Set database before parent constructor to avoid setting it there with wfGetDB
        $this->mDb = $loadBalancer->getConnectionRef( ILoadBalancer::DB_REPLICA );
        parent::__construct( $form->getContext(), $linkRenderer );
        $this->mConds = $conds;
        $this->type = $type ?: 'edit';
        $this->level = $level;
        $this->namespace = $namespace;
        $this->sizetype = $sizetype;
        $this->size = intval( $size );
        $this->indefonly = (bool)$indefonly;
        $this->cascadeonly = (bool)$cascadeonly;
        $this->noredirect = (bool)$noredirect;
        $this->linkBatchFactory = $linkBatchFactory;
        $this->commentStore = $commentStore;
        $this->actorMigration = $actorMigration;
        $this->userCache = $userCache;
    }
 
    public function preprocessResults( $result ) {
        # Do a link batch query
        $lb = $this->linkBatchFactory->newLinkBatch();
        $userids = [];
 
        foreach ( $result as $row ) {
            $lb->add( $row->page_namespace, $row->page_title );
            // field is nullable, maybe null on old protections
            if ( $row->log_user !== null ) {
                $userids[] = $row->log_user;
            }
        }
 
        // fill LinkBatch with user page and user talk
        if ( count( $userids ) ) {
            $this->userCache->doQuery( $userids, [], __METHOD__ );
            foreach ( $userids as $userid ) {
                $name = $this->userCache->getProp( $userid, 'name' );
                if ( $name !== false ) {
                    $lb->add( NS_USER, $name );
                    $lb->add( NS_USER_TALK, $name );
                }
            }
        }
 
        $lb->execute();
    }
 
    protected function getFieldNames() {
        static $headers = null;
 
        if ( $headers == [] ) {
            $headers = [
                'log_timestamp' => 'protectedpages-timestamp',
                'pr_page' => 'protectedpages-page',
                'pr_expiry' => 'protectedpages-expiry',
                'log_user' => 'protectedpages-performer',
                'pr_params' => 'protectedpages-params',
                'log_comment' => 'protectedpages-reason',
            ];
            foreach ( $headers as $key => $val ) {
                $headers[$key] = $this->msg( $val )->text();
            }
        }
 
        return $headers;
    }
 
    public function formatValue( $field, $value ) {
        $row = $this->mCurrentRow;
        $linkRenderer = $this->getLinkRenderer();
 
        switch ( $field ) {
            case 'log_timestamp':
                // when timestamp is null, this is a old protection row
                if ( $value === null ) {
                    $formatted = Html::rawElement(
                        'span',
                        [ 'class' => 'mw-protectedpages-unknown' ],
                        $this->msg( 'protectedpages-unknown-timestamp' )->escaped()
                    );
                } else {
                    $formatted = htmlspecialchars( $this->getLanguage()->userTimeAndDate(
                        $value, $this->getUser() ) );
                }
                break;
 
            case 'pr_page':
                $title = Title::makeTitleSafe( $row->page_namespace, $row->page_title );
                if ( !$title ) {
                    $formatted = Html::element(
                        'span',
                        [ 'class' => 'mw-invalidtitle' ],
                        Linker::getInvalidTitleDescription(
                            $this->getContext(),
                            $row->page_namespace,
                            $row->page_title
                        )
                    );
                } else {
                    $formatted = $linkRenderer->makeLink( $title );
                }
                if ( $row->page_len !== null ) {
                    $formatted .= $this->getLanguage()->getDirMark() .
                        ' ' . Html::rawElement(
                            'span',
                            [ 'class' => 'mw-protectedpages-length' ],
                            Linker::formatRevisionSize( $row->page_len )
                        );
                }
                break;
 
            case 'pr_expiry':
                $formatted = htmlspecialchars( $this->getLanguage()->formatExpiry(
                    $value, /* User preference timezone */true ) );
                $title = Title::makeTitleSafe( $row->page_namespace, $row->page_title );
                if ( $title && $this->getAuthority()->isAllowed( 'protect' ) ) {
                    $changeProtection = $linkRenderer->makeKnownLink(
                        $title,
                        $this->msg( 'protect_change' )->text(),
                        [],
                        [ 'action' => 'unprotect' ]
                    );
                    $formatted .= ' ' . Html::rawElement(
                            'span',
                            [ 'class' => 'mw-protectedpages-actions' ],
                            $this->msg( 'parentheses' )->rawParams( $changeProtection )->escaped()
                        );
                }
                break;
 
            case 'log_user':
                // when timestamp is null, this is a old protection row
                if ( $row->log_timestamp === null ) {
                    $formatted = Html::rawElement(
                        'span',
                        [ 'class' => 'mw-protectedpages-unknown' ],
                        $this->msg( 'protectedpages-unknown-performer' )->escaped()
                    );
                } else {
                    $username = $this->userCache->getProp( $value, 'name' );
                    if ( LogEventsList::userCanBitfield(
                        $row->log_deleted,
                        LogPage::DELETED_USER,
                        $this->getUser()
                    ) ) {
                        if ( $username === false ) {
                            $formatted = htmlspecialchars( $value );
                        } else {
                            $formatted = Linker::userLink( $value, $username )
                                . Linker::userToolLinks( $value, $username );
                        }
                    } else {
                        $formatted = $this->msg( 'rev-deleted-user' )->escaped();
                    }
                    if ( LogEventsList::isDeleted( $row, LogPage::DELETED_USER ) ) {
                        $formatted = '<span class="history-deleted">' . $formatted . '</span>';
                    }
                }
                break;
 
            case 'pr_params':
                $params = [];
                // Messages: restriction-level-sysop, restriction-level-autoconfirmed
                $params[] = $this->msg( 'restriction-level-' . $row->pr_level )->escaped();
                if ( $row->pr_cascade ) {
                    $params[] = $this->msg( 'protect-summary-cascade' )->escaped();
                }
                $formatted = $this->getLanguage()->commaList( $params );
                break;
 
            case 'log_comment':
                // when timestamp is null, this is an old protection row
                if ( $row->log_timestamp === null ) {
                    $formatted = Html::rawElement(
                        'span',
                        [ 'class' => 'mw-protectedpages-unknown' ],
                        $this->msg( 'protectedpages-unknown-reason' )->escaped()
                    );
                } else {
                    if ( LogEventsList::userCanBitfield(
                        $row->log_deleted,
                        LogPage::DELETED_COMMENT,
                        $this->getUser()
                    ) ) {
                        $value = $this->commentStore->getComment( 'log_comment', $row )->text;
                        $formatted = Linker::formatComment( $value ?? '' );
                    } else {
                        $formatted = $this->msg( 'rev-deleted-comment' )->escaped();
                    }
                    if ( LogEventsList::isDeleted( $row, LogPage::DELETED_COMMENT ) ) {
                        $formatted = '<span class="history-deleted">' . $formatted . '</span>';
                    }
                }
                break;
 
            default:
                throw new MWException( "Unknown field '$field'" );
        }
 
        return $formatted;
    }
 
    public function getQueryInfo() {
        $dbr = $this->getDatabase();
        $conds = $this->mConds;
        $conds[] = 'pr_expiry > ' . $dbr->addQuotes( $dbr->timestamp() ) .
            ' OR pr_expiry IS NULL';
        $conds[] = 'page_id=pr_page';
        $conds[] = 'pr_type=' . $dbr->addQuotes( $this->type );
 
        if ( $this->sizetype == 'min' ) {
            $conds[] = 'page_len>=' . $this->size;
        } elseif ( $this->sizetype == 'max' ) {
            $conds[] = 'page_len<=' . $this->size;
        }
 
        if ( $this->indefonly ) {
            $infinity = $dbr->addQuotes( $dbr->getInfinity() );
            $conds[] = "pr_expiry = $infinity OR pr_expiry IS NULL";
        }
        if ( $this->cascadeonly ) {
            $conds[] = 'pr_cascade = 1';
        }
        if ( $this->noredirect ) {
            $conds[] = 'page_is_redirect = 0';
        }
 
        if ( $this->level ) {
            $conds[] = 'pr_level=' . $dbr->addQuotes( $this->level );
        }
        if ( $this->namespace !== null ) {
            $conds[] = 'page_namespace=' . $dbr->addQuotes( $this->namespace );
        }
 
        $commentQuery = $this->commentStore->getJoin( 'log_comment' );
        $actorQuery = $this->actorMigration->getJoin( 'log_user' );
 
        return [
            'tables' => [
                'page', 'page_restrictions', 'log_search',
                'logparen' => [ 'logging' ] + $commentQuery['tables'] + $actorQuery['tables'],
            ],
            'fields' => [
                'pr_id',
                'page_namespace',
                'page_title',
                'page_len',
                'pr_type',
                'pr_level',
                'pr_expiry',
                'pr_cascade',
                'log_timestamp',
                'log_deleted',
            ] + $commentQuery['fields'] + $actorQuery['fields'],
            'conds' => $conds,
            'join_conds' => [
                'log_search' => [
                    'LEFT JOIN', [
                        'ls_field' => 'pr_id', 'ls_value = ' . $dbr->buildStringCast( 'pr_id' )
                    ]
                ],
                'logparen' => [
                    'LEFT JOIN', [
                        'ls_log_id = log_id'
                    ]
                ]
            ] + $commentQuery['joins'] + $actorQuery['joins']
        ];
    }
 
    protected function getTableClass() {
        return parent::getTableClass() . ' mw-protectedpages';
    }
 
    public function getIndexField() {
        return 'pr_id';
    }
 
    public function getDefaultSort() {
        return 'pr_id';
    }
 
    protected function isFieldSortable( $field ) {
        // no index for sorting exists
        return false;
    }
}