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/*!
* forwarded
* Copyright(c) 2014 Douglas Christopher Wilson
* MIT Licensed
*/
/**
* Module exports.
*/
module.exports = forwarded
/**
* Get all addresses in the request, using the `X-Forwarded-For` header.
*
* @param {Object} req
* @api public
*/
function forwarded(req) {
if (!req) {
throw new TypeError('argument req is required')
}
// simple header parsing
var proxyAddrs = (req.headers['x-forwarded-for'] || '')
.split(/ *, */)
.filter(Boolean)
.reverse()
var socketAddr = req.connection.remoteAddress
var addrs = [socketAddr].concat(proxyAddrs)
// return all addresses
return addrs
}
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