filestore.php

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<?php
use Elgg\Project\Paths;
use Symfony\Component\HttpFoundation\File\UploadedFile;

function elgg_save_resized_image(string $source, ?string $destination = null, array $params = []): bool {
    return _elgg_services()->imageService->resize($source, $destination, $params);
}

function elgg_delete_directory(string $directory, bool $leave_base_directory = false): bool {
    $directory = Paths::sanitize($directory);
    if (!file_exists($directory)) {
        return true;
    }
    
    if (!is_dir($directory)) {
        return false;
    }
    
    $dh = new \DirectoryIterator($directory);
    /* @var $file_info \DirectoryIterator */
    foreach ($dh as $file_info) {
        if ($file_info->isDot()) {
            continue;
        }
        
        if ($file_info->isDir()) {
            // recurse down through directory
            if (!elgg_delete_directory($directory . $file_info->getFilename())) {
                return false;
            }
        } elseif ($file_info->isFile()) {
            unlink($file_info->getPathname());
        }
    }
    
    if ($leave_base_directory) {
        return true;
    }
    
    // remove empty directory
    return rmdir($directory);
}

function elgg_get_download_url(\ElggFile $file, bool $use_cookie = true, string $expires = '+2 hours'): ?string {
    return $file->getDownloadURL($use_cookie, $expires);
}

function elgg_get_inline_url(\ElggFile $file, bool $use_cookie = false, string $expires = ''): ?string {
    return $file->getInlineURL($use_cookie, $expires);
}

function elgg_get_embed_url(\ElggEntity $entity, string $size): string {
    return elgg_generate_url('serve-icon', [
        'guid' => $entity->guid,
        'size' => $size,
    ]);
}

function elgg_get_uploaded_files(string $input_name): array {
    return _elgg_services()->uploads->getFiles($input_name);
}

function elgg_get_uploaded_file(string $input_name, bool $check_for_validity = true): ?UploadedFile {
    return _elgg_services()->uploads->getFile($input_name, $check_for_validity);
}

function elgg_get_temp_file(): \ElggTempFile {
    return new ElggTempFile();
}