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Adding support for no_proxy env variable (#1693)

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* Adding support for no_proxy env variable

* Adds support for the no_proxy environment variable commonly available
  with programs supporting the http_proxy/https_proxy environment
  variables.
* Adds tests to test the no_proxy environment variable.

* Adding documentation for the proxy env variables

* Adds documentation to README.md for the supported, conventional
  http_proxy, https_proxy, and no_proxy environment variables.
This commit is contained in:
Chance Dickson
2018-08-07 12:52:04 -05:00
committed by Emily Morehouse
parent b9f68bdf00
commit 38de25257c
3 changed files with 119 additions and 10 deletions
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lib/adapters/http.js
+37 -9
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@@ -102,17 +102,45 @@ module.exports = function httpAdapter(config) {
var proxyUrl = process.env[proxyEnv] || process.env[proxyEnv.toUpperCase()];
if (proxyUrl) {
var parsedProxyUrl = url.parse(proxyUrl);
proxy = {
host: parsedProxyUrl.hostname,
port: parsedProxyUrl.port
};
var noProxyEnv = process.env.no_proxy || process.env.NO_PROXY;
var shouldProxy = true;
if (parsedProxyUrl.auth) {
var proxyUrlAuth = parsedProxyUrl.auth.split(':');
proxy.auth = {
username: proxyUrlAuth[0],
password: proxyUrlAuth[1]
if (noProxyEnv) {
var noProxy = noProxyEnv.split(',').map(function trim(s) {
return s.trim();
});
shouldProxy = !noProxy.some(function proxyMatch(proxyElement) {
if (!proxyElement) {
return false;
}
if (proxyElement === '*') {
return true;
}
if (proxyElement[0] === '.' &&
parsed.hostname.substr(parsed.hostname.length - proxyElement.length) === proxyElement &&
proxyElement.match(/\./g).length === parsed.hostname.match(/\./g).length) {
return true;
}
return parsed.hostname === proxyElement;
});
}
if (shouldProxy) {
proxy = {
host: parsedProxyUrl.hostname,
port: parsedProxyUrl.port
};
if (parsedProxyUrl.auth) {
var proxyUrlAuth = parsedProxyUrl.auth.split(':');
proxy.auth = {
username: proxyUrlAuth[0],
password: proxyUrlAuth[1]
};
}
}
}
}