kequapp/dist/built-in/helpers/static-directory.js

A minimal, zero-magic Node web framework built on native APIs

import fs from 'node:fs';
import path from 'node:path';
import { createAction } from "../../router/modules.js";
import guessContentType from "../../util/guess-content-type.js";
import { validateArray, validateExists, validateObject, validatePathname, } from "../../util/validate.js";
import Ex from "../tools/ex.js";
import sendFile from "./send-file.js";
export default function staticDirectory(options) {
    validateOptions(options);
    return createAction(async ({ req, res, params }) => {
        const location = await getLocation(options.location, params.wild, options.index);
        const contentType = guessContentType(location, options.contentTypes);
        await sendFile(req, res, location, contentType);
    });
}
function validateOptions(options) {
    validateExists(options, 'Static directory options');
    validateObject(options, 'Static directory options');
    validateExists(options.location, 'Static directory options.location');
    validatePathname(options.location, 'Static directory options.location');
    validateArray(options.index, 'Static directory options.index', 'string');
    validateObject(options.contentTypes, 'Static directory options.contentTypes', 'string');
}
async function getLocation(location, wild = '', index = []) {
    const absolute = path.join(process.cwd(), location, wild);
    try {
        const stats = await fs.promises.stat(absolute);
        if (stats.isDirectory() && index.length > 0) {
            const files = await fs.promises.readdir(absolute);
            for (const file of index) {
                if (files.includes(file))
                    return path.join(location, wild, file);
            }
        }
        if (stats.isFile())
            return path.join(location, wild);
    }
    catch (_error) {
        // fail
    }
    throw Ex.NotFound(undefined, { absolute, index });
}