cityssm/faster-web-helper

import { randomUUID } from 'node:crypto';
import fs from 'node:fs/promises';
import os from 'node:os';
import path from 'node:path';
import { Client } from 'basic-ftp';
import Debug from 'debug';
import { getConfigProperty } from './functions.config.js';
const debug = Debug('faster-web-helper:functions.sftp');
async function doesFileExist(filePath) {
    try {
        await fs.access(filePath, fs.constants.F_OK);
        return true;
    }
    catch {
        return false;
    }
}
export const tempFolderPath = path.join(os.tmpdir(), 'fasterWebHelper');
export async function ensureTempFolderExists() {
    if (!(await doesFileExist(tempFolderPath))) {
        // eslint-disable-next-line security/detect-non-literal-fs-filename
        await fs.mkdir(tempFolderPath);
    }
}
export async function downloadFilesToTemp(ftpPath) {
    await ensureTempFolderExists();
    const ftpClient = new Client();
    const downloadedFiles = [];
    try {
        await ftpClient.access(getConfigProperty('ftp'));
        if (ftpPath.directory !== '') {
            await ftpClient.cd(ftpPath.directory);
        }
        const filesAndDirectories = await ftpClient.list();
        for (const fileOrDirectory of filesAndDirectories) {
            if (fileOrDirectory.isFile &&
                fileOrDirectory.name.startsWith(ftpPath.filePrefix ?? '') &&
                fileOrDirectory.name.endsWith(ftpPath.fileSuffix ?? '')) {
                // Ensure file doesn't already exist
                let localFileName = fileOrDirectory.name;
                while (await doesFileExist(path.join(os.tmpdir(), localFileName))) {
                    localFileName = randomUUID().slice(0, 9) + fileOrDirectory.name;
                }
                const localPath = path.join(tempFolderPath, localFileName);
                debug(`Downloading ${fileOrDirectory.name} to ${localPath} ...`);
                await ftpClient.downloadTo(localPath, fileOrDirectory.name);
                downloadedFiles.push(localPath);
                if (ftpPath.doDelete ?? false) {
                    await ftpClient.remove(fileOrDirectory.name);
                }
            }
        }
    }
    finally {
        ftpClient.close();
    }
    return downloadedFiles;
}