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.
32 lines
786 B
32 lines
786 B
'use strict';
|
|
|
|
var debug = require('debug')('urllib:detect_proxy_agent');
|
|
var getProxyFromURI = require('./get_proxy_from_uri');
|
|
|
|
var proxyAgents = {};
|
|
|
|
function detectProxyAgent(uri, args) {
|
|
if (!args.enableProxy && !process.env.URLLIB_ENABLE_PROXY) {
|
|
return null;
|
|
}
|
|
var proxy = args.proxy || process.env.URLLIB_PROXY;
|
|
if (!proxy) {
|
|
proxy = getProxyFromURI(uri);
|
|
if (!proxy) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
var proxyAgent = proxyAgents[proxy];
|
|
if (!proxyAgent) {
|
|
debug('create new proxy %s', proxy);
|
|
// lazy require, only support node >= 4
|
|
proxyAgent = proxyAgents[proxy] = new (require('proxy-agent'))(proxy);
|
|
}
|
|
debug('get proxy: %s', proxy);
|
|
return proxyAgent;
|
|
}
|
|
|
|
module.exports = detectProxyAgent;
|
|
module.exports.proxyAgents = proxyAgents;
|