41 lines
817 B
JavaScript
41 lines
817 B
JavaScript
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'use strict';
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const url = require('url');
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const tunnelAgent = require('tunnel-agent');
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const is = require('./is');
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const proxies = [
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'HTTPS_PROXY',
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'https_proxy',
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'HTTP_PROXY',
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'http_proxy',
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'npm_config_https_proxy',
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'npm_config_proxy'
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];
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function env (key) {
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return process.env[key];
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}
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module.exports = function () {
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try {
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const proxy = new url.URL(proxies.map(env).find(is.string));
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const tunnel = proxy.protocol === 'https:'
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? tunnelAgent.httpsOverHttps
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: tunnelAgent.httpsOverHttp;
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const proxyAuth = proxy.username && proxy.password
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? `${proxy.username}:${proxy.password}`
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: null;
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return tunnel({
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proxy: {
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port: Number(proxy.port),
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host: proxy.hostname,
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proxyAuth
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}
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});
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} catch (err) {
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return null;
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}
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};
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