refreshFileHeaders.php

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<?php
require_once __DIR__ . '/Maintenance.php';

class RefreshFileHeaders extends Maintenance {
    function __construct() {
        parent::__construct();
        $this->addDescription( 'Script to update file HTTP headers' );
        $this->addOption( 'verbose', 'Output information about each file.', false, false, 'v' );
        $this->addOption( 'start', 'Name of file to start with', false, true );
        $this->addOption( 'end', 'Name of file to end with', false, true );
        $this->addOption( 'media_type', 'Media type to filter for', false, true );
        $this->addOption( 'major_mime', 'Major mime type to filter for', false, true );
        $this->addOption( 'minor_mime', 'Minor mime type to filter for', false, true );
        $this->addOption(
            'refreshContentType',
            'Set true to refresh file content type from mime data in db',
            false,
            false
        );
        $this->setBatchSize( 200 );
    }

    public function execute() {
        $repo = RepoGroup::singleton()->getLocalRepo();
        $start = str_replace( ' ', '_', $this->getOption( 'start', '' ) ); // page on img_name
        $end = str_replace( ' ', '_', $this->getOption( 'end', '' ) ); // page on img_name
         // filter by img_media_type
        $media_type = str_replace( ' ', '_', $this->getOption( 'media_type', '' ) );
         // filter by img_major_mime
        $major_mime = str_replace( ' ', '_', $this->getOption( 'major_mime', '' ) );
         // filter by img_minor_mime
        $minor_mime = str_replace( ' ', '_', $this->getOption( 'minor_mime', '' ) );

        $count = 0;
        $dbr = $this->getDB( DB_REPLICA );

        $fileQuery = LocalFile::getQueryInfo();

        do {
            $conds = [ "img_name > {$dbr->addQuotes( $start )}" ];

            if ( strlen( $end ) ) {
                $conds[] = "img_name <= {$dbr->addQuotes( $end )}";
            }

            if ( strlen( $media_type ) ) {
                $conds[] = "img_media_type = {$dbr->addQuotes( $media_type )}";
            }

            if ( strlen( $major_mime ) ) {
                $conds[] = "img_major_mime = {$dbr->addQuotes( $major_mime )}";
            }

            if ( strlen( $minor_mime ) ) {
                $conds[] = "img_minor_mime = {$dbr->addQuotes( $minor_mime )}";
            }

            $res = $dbr->select( $fileQuery['tables'],
                $fileQuery['fields'],
                $conds,
                __METHOD__,
                [
                    'LIMIT' => $this->getBatchSize(),
                    'ORDER BY' => 'img_name ASC'
                ],
                $fileQuery['joins']
            );

            if ( $res->numRows() > 0 ) {
                $row1 = $res->current();
                $this->output( "Processing next {$res->numRows()} row(s) starting with {$row1->img_name}.\n" );
                $res->rewind();
            }

            $backendOperations = [];

            foreach ( $res as $row ) {
                $file = $repo->newFileFromRow( $row );
                $headers = $file->getContentHeaders();
                if ( $this->getOption( 'refreshContentType', false ) ) {
                    $headers['Content-Type'] = $row->img_major_mime . '/' . $row->img_minor_mime;
                }

                if ( count( $headers ) ) {
                    $backendOperations[] = [
                        'op' => 'describe', 'src' => $file->getPath(), 'headers' => $headers
                    ];
                }

                // Do all of the older file versions...
                foreach ( $file->getHistory() as $oldFile ) {
                    $headers = $oldFile->getContentHeaders();
                    if ( count( $headers ) ) {
                        $backendOperations[] = [
                            'op' => 'describe', 'src' => $oldFile->getPath(), 'headers' => $headers
                        ];
                    }
                }

                if ( $this->hasOption( 'verbose' ) ) {
                    $this->output( "Queued headers update for file '{$row->img_name}'.\n" );
                }

                $start = $row->img_name; // advance
            }

            $backendOperationsCount = count( $backendOperations );
            $count += $backendOperationsCount;

            $this->output( "Updating headers for {$backendOperationsCount} file(s).\n" );
            $this->updateFileHeaders( $repo, $backendOperations );
        } while ( $res->numRows() === $this->getBatchSize() );

        $this->output( "Done. Updated headers for $count file(s).\n" );
    }

    protected function updateFileHeaders( $repo, $backendOperations ) {
        $status = $repo->getBackend()->doQuickOperations( $backendOperations );

        if ( !$status->isGood() ) {
            $this->error( "Encountered error: " . print_r( $status, true ) );
        }
    }
}

$maintClass = RefreshFileHeaders::class;
require_once RUN_MAINTENANCE_IF_MAIN;