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Configuration error
function formatHostname (hostname) { | |
// canonicalize the hostname, so that 'oogle.com' won't match 'google.com' | |
return hostname.replace(/^\.*/, '.').toLowerCase() | |
} | |
function parseNoProxyZone (zone) { | |
zone = zone.trim().toLowerCase() | |
var zoneParts = zone.split(':', 2) | |
var zoneHost = formatHostname(zoneParts[0]) | |
var zonePort = zoneParts[1] | |
var hasPort = zone.indexOf(':') > -1 | |
return {hostname: zoneHost, port: zonePort, hasPort: hasPort} | |
} | |
function uriInNoProxy (uri, noProxy) { | |
var port = uri.port || (uri.protocol === 'https:' ? '443' : '80') | |
var hostname = formatHostname(uri.hostname) | |
var noProxyList = noProxy.split(',') | |
// iterate through the noProxyList until it finds a match. | |
return noProxyList.map(parseNoProxyZone).some(function (noProxyZone) { | |
var isMatchedAt = hostname.indexOf(noProxyZone.hostname) | |
var hostnameMatched = ( | |
isMatchedAt > -1 && | |
(isMatchedAt === hostname.length - noProxyZone.hostname.length) | |
) | |
if (noProxyZone.hasPort) { | |
return (port === noProxyZone.port) && hostnameMatched | |
} | |
return hostnameMatched | |
}) | |
} | |
function getProxyFromURI (uri) { | |
// Decide the proper request proxy to use based on the request URI object and the | |
// environmental variables (NO_PROXY, HTTP_PROXY, etc.) | |
// respect NO_PROXY environment variables (see: https://lynx.invisible-island.net/lynx2.8.7/breakout/lynx_help/keystrokes/environments.html) | |
var noProxy = process.env.NO_PROXY || process.env.no_proxy || '' | |
// if the noProxy is a wildcard then return null | |
if (noProxy === '*') { | |
return null | |
} | |
// if the noProxy is not empty and the uri is found return null | |
if (noProxy !== '' && uriInNoProxy(uri, noProxy)) { | |
return null | |
} | |
// Check for HTTP or HTTPS Proxy in environment Else default to null | |
if (uri.protocol === 'http:') { | |
return process.env.HTTP_PROXY || | |
process.env.http_proxy || null | |
} | |
if (uri.protocol === 'https:') { | |
return process.env.HTTPS_PROXY || | |
process.env.https_proxy || | |
process.env.HTTP_PROXY || | |
process.env.http_proxy || null | |
} | |
// if none of that works, return null | |
// (What uri protocol are you using then?) | |
return null | |
} | |
module.exports = getProxyFromURI | |