You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
80 lines
2.2 KiB
80 lines
2.2 KiB
2 years ago
|
'use strict'
|
||
|
|
|
||
|
|
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
|