Resolves RFC 7239 / Forwarded HTTP Extension, with fallback to all legacy & special Forward headers: `X-Forwarded-*`, `X-Real-*` and others
npm install forwarded-http> Resolves RFC 7239 (Forwarded HTTP Extension), with fallback to all legacy & special Forward headers: X-Forwarded-, X-Real-, Fastly-Client-IP, X-Cluster-Client-IP, and others.
Focuses on resolving to the RFC standard and providing a consistent access to HTTP Forwarded Parameters: by, for, host, proto.
Filter valid IPv4 or IPv6 IPs against glob pattern, array, string, regexp or matcher function.
Use as Express Middleware to populate req.forwarded object.
[![Build Status][travis-image]][travis-url]
[![Downloads][npm-downloads]][npm-url]
[![Code Climate][codeclimate-quality]][codeclimate-url]
[![Coverage Status][codeclimate-coverage]][codeclimate-url]
[![Dependencies][david-image]][david-url]
``sh`
npm install --save forwarded-http
`js
var forwarded = require('forwarded-http')
var params = forwarded(req)
// filter IP ranges
var filteredParams = forwarded(req, {
filter: ['1.0.?.', '2001:db8:']
})
// don't list private IPs
var filteredParams = forwarded(req, {
allowPrivate: false
})
`
The final proxied port before hitting this server
`js
var params = forwarded(req)
params.port // '8000'
`
Oject with IPs as key with matching port used as value (if applicable)
`js
var params = forwarded(req)
params.for // { '0.0.0.1': '8000', '0.0.0.2': '8001' }
`
The final proxied protocol before hitting this server
`js
var params = forwarded(req)
params.proto // 'https'
`
The proxied host
`js
var params = forwarded(req)
arams.host // 'foo.com'
`
Array of ports the client is connected through
`js
var params = forwarded(req)
params.ports // ['8000', '8001']
`
Array of IP addresses the client is connected through
`js
var params = forwarded(req)
params.ips // ['0.0.0.1', '0.0.0.2']
`
Use as Express Middleware to populate req.forwarded object.
`js
var express = require('express')
var forwarded = require('forwarded-http/lib/middleware')
var app = express()
// use with default options
app.use(forwarded())
// or with options
app.use(forwarded(req, {
filter: ['1.0.?.', '2001:db8:'],
allowPrivate: false
})
``
Donations are welcome to help support the continuous development of this project.
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[license-url]: https://github.com/ahmadnassri/forwarded-http/blob/master/LICENSE
[travis-url]: https://travis-ci.org/ahmadnassri/forwarded-http
[travis-image]: https://img.shields.io/travis/ahmadnassri/forwarded-http.svg?style=flat-square
[npm-url]: https://www.npmjs.com/package/forwarded-http
[npm-license]: https://img.shields.io/npm/l/forwarded-http.svg?style=flat-square
[npm-version]: https://img.shields.io/npm/v/forwarded-http.svg?style=flat-square
[npm-downloads]: https://img.shields.io/npm/dm/forwarded-http.svg?style=flat-square
[codeclimate-url]: https://codeclimate.com/github/ahmadnassri/forwarded-http
[codeclimate-quality]: https://img.shields.io/codeclimate/github/ahmadnassri/forwarded-http.svg?style=flat-square
[codeclimate-coverage]: https://img.shields.io/codeclimate/coverage/github/ahmadnassri/forwarded-http.svg?style=flat-square
[david-url]: https://david-dm.org/ahmadnassri/forwarded-http
[david-image]: https://img.shields.io/david/ahmadnassri/forwarded-http.svg?style=flat-square
[gratipay-url]: https://www.gratipay.com/ahmadnassri/
[gratipay-image]: https://img.shields.io/gratipay/ahmadnassri.svg?style=flat-square
[paypal-url]: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=UJ2B2BTK9VLRS&on0=project&os0=forwarded-http
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[flattr-url]: https://flattr.com/submit/auto?user_id=ahmadnassri&url=https://github.com/ahmadnassri/forwarded-http&title=forwarded-http&language=&tags=github&category=software
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[bitcoin-url]: https://www.coinbase.com/checkouts/ae383ae6bb931a2fa5ad11cec115191e?name=forwarded-http