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