sthnaqvi/node-etstatic

A simple static file server middleware

etstatic

A simple static file server middleware with custom error file. Use it with a raw http server, express/connect or on the CLI!

Examples:

express 4.x

'use strict';

const express = require('express');
const etstatic = require('../lib/etstatic');
const http = require('http');

const app = express();

app.use(etstatic({
  root: `${__dirname}/public`,
  showdir: true,
}));

http.createServer(app).listen(8080);

console.log('Listening on :8080');

stock http server

'use strict';

const http = require('http');

const etstatic = require('../lib/etstatic')({
  root: `${__dirname}/public`,
  showDir: true,
  autoIndex: true,
});

http.createServer(etstatic).listen(8080);

console.log('Listening on :8080');

fall through

To allow fall through to your custom routes:

etstatic({ root: __dirname + '/public', handleError: false })

CLI

etstatic ./public --port 8080

Install:

For using etstatic as a library, just npm install it into your project:

npm install --save etstatic

For using etstatic as a cli tool, either npm install it globally:

npm install etstatic -g

or install it locally and use npm runscripts to add it to your $PATH, or reference it directly with ./node_modules/.bin/etstatic.

API:

etstatic(opts);

$ etstatic [dir?] {options} --port PORT

In node, pass etstatic an options hash, and it will return your middleware!

const opts = {
  root: path.join(__dirname, 'public'),
  baseDir: '/',
  autoIndex: true,
  showDir: true,
  showDotfiles: true,
  humanReadable: true,
  hidePermissions: false,
  si: false,
  cache: 'max-age=3600',
  cors: false,
  gzip: true,
  defaultExt: 'html',
  handleError: true,
  errorFileName: 'index',
  serverHeader: true,
  contentType: 'application/octet-stream',
  weakEtags: true,
  weakCompare: true,
  handleOptionsMethod: false,
}

If opts is a string, the string is assigned to the root folder and all other options are set to their defaults.

When running in CLI mode, all options work as above, passed in optimist style. port defaults to 8000. If a dir or --root dir argument is not passed, ecsatic will serve the current dir. etstatic also respects the PORT environment variable.

opts.root

--root {root}

opts.root is the directory you want to serve up.

opts.port

--port {port}

In CLI mode, opts.port is the port you want etstatic to listen to. Defaults to 8000. This can be overridden with the --port flag or with the PORT environment variable.

opts.baseDir

--baseDir {dir}

opts.baseDir is / by default, but can be changed to allow your static files to be served off a specific route. For example, if opts.baseDir === "blog" and opts.root = "./public", requests for localhost:8080/blog/index.html will resolve to ./public/index.html.

opts.cache

--cache {value}

Customize cache control with opts.cache , if it is a number then it will set max-age in seconds. Other wise it will pass through directly to cache-control. Time defaults to 3600 s (ie, 1 hour).

If it is a function, it will be executed on every request, and passed the pathname. Whatever it returns, string or number, will be used as the cache control header like above.

opts.showDir

--no-showDir

Turn off directory listings with opts.showDir === false. Defaults to true.

opts.showDotfiles

--no-showDotfiles

Exclude dotfiles from directory listings with opts.showDotfiles === false. Defaults to true.

opts.humanReadable

--no-human-readable

If showDir is enabled, add human-readable file sizes. Defaults to true. Aliases are humanreadable and human-readable.

opts.hidePermissions

--hide-permissions

If hidePermissions is enabled, file permissions will not be displayed. Defaults to false. Aliases are hidepermissions and hide-permissions.

opts.headers

--H {HeaderA: valA} [--H {HeaderB: valB}]

Set headers on every response. opts.headers can be an object mapping string header names to string header values, a colon (:) separated string, or an array of colon separated strings.

opts.H and opts.header are aliased to opts.headers so that you can use -H and --header options to set headers on the command-line like curl:

$ etstatic ./public -p 5000 -H 'Access-Control-Allow-Origin: *'

opts.si

--si

If showDir and humanReadable are enabled, print file sizes with base 1000 instead of base 1024. Name is inferred from cli options for ls. Aliased to index, the equivalent option in Apache.

opts.autoIndex

--no-autoindex

Serve /path/index.html when /path/ is requested. Turn off autoIndexing with opts.autoIndex === false. Defaults to true.

opts.defaultExt

--defaultExt {ext}

Turn on default file extensions with opts.defaultExt. If opts.defaultExt is true, it will default to html. For example if you want a request to /a-file to resolve to ./public/a-file.html, set this to true. If you want /a-file to resolve to ./public/a-file.json instead, set opts.defaultExt to json.

opts.gzip

--no-gzip

By default, etstatic will serve ./public/some-file.js.gz in place of ./public/some-file.js when the gzipped version exists and etstatic determines that the behavior is appropriate. If ./public/some-file.js.gz is not valid gzip, this will fall back to ./public/some-file.js. You can turn this off with opts.gzip === false.

opts.serverHeader

--no-server-header

Set opts.serverHeader to false in order to turn off setting the Server header on all responses served by etstatic.

opts.contentType

--content-type {type}

Set opts.contentType in order to change default Content-Type header value. Defaults to application/octet-stream.

opts.mimeTypes

--mime-types {filename}

Add new or override one or more mime-types. This affects the HTTP Content-Type header. Can either be a path to a .types file or an object hash of type(s).

etstatic({ mimeType: { 'mime-type': ['file_extension', 'file_extension'] } })

opts.handleError

Turn off handleErrors to allow fall-through with opts.handleError === false, Defaults to true.

opts.errorFileName

Set opts.errorFileName = 'index' to set error file when handleErrors=true , Defaults errorFileName is 404.

opts.weakEtags

--no-weak-etags

Set opts.weakEtags to false in order to generate strong etags instead of weak etags. Defaults to true. See opts.weakCompare as well.

opts.weakCompare

--no-weak-compare

Turn off weakCompare to disable the weak comparison function for etag validation. Defaults to true. See https://www.ietf.org/rfc/rfc2616.txt Section 13.3.3 for more details.

opts.handleOptionsMethod

--handle-options-method

Set handleOptionsMethod to true in order to respond to 'OPTIONS' calls with any standard/set headers. Defaults to false. Useful for hacking up CORS support.

opts.cors

--cors

This is a convenience setting which turns on handleOptionsMethod and sets the headers Access-Control-Allow-Origin: * and Access-Control-Allow-Headers: Authorization, Content-Type, If-Match, If-Modified-Since, If-None-Match, If-Unmodified-Since. This should be enough to quickly make cross-origin resource sharing work between development APIs. More advanced usage can come either from overriding these headers with the headers argument, or by using the handleOptionsMethod flag and then setting headers "manually." Alternately, just do it in your app using separate middlewares/abstractions.

Defaults to false.

middleware(req, res, next);

This works more or less as you'd expect.

etstatic.showDir(folder);

This returns another middleware which will attempt to show a directory view. Turning on auto-indexing is roughly equivalent to adding this middleware after an etstatic middleware with autoindexing disabled.

Tests:

etstatic has a fairly extensive test suite. You can run it with:

$ npm test

Contribute:

Without outside contributions, etstatic would wither and die! Before contributing, take a quick look at the contributing guidelines in ./CONTRIBUTING.md . They're relatively painless, I promise.

License:

MIT. See LICENSE.txt. For contributors, see CONTRIBUTORS.md