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proxy-from-env - npm Package Compare versions

Comparing version
2.0.0
 to
2.1.0
+105
index.cjs
'use strict';
var DEFAULT_PORTS = {
ftp: 21,
gopher: 70,
http: 80,
https: 443,
ws: 80,
wss: 443,
};
function parseUrl(urlString) {
try {
return new URL(urlString);
} catch {
return null;
}
}
/**
* @param {string|object|URL} url - The URL as a string or URL instance, or a
* compatible object (such as the result from legacy url.parse).
* @return {string} The URL of the proxy that should handle the request to the
* given URL. If no proxy is set, this will be an empty string.
*/
function getProxyForUrl(url) {
var parsedUrl = (typeof url === 'string' ? parseUrl(url) : url) || {};
var proto = parsedUrl.protocol;
var hostname = parsedUrl.host;
var port = parsedUrl.port;
if (typeof hostname !== 'string' || !hostname || typeof proto !== 'string') {
return ''; // Don't proxy URLs without a valid scheme or host.
}
proto = proto.split(':', 1)[0];
// Stripping ports in this way instead of using parsedUrl.hostname to make
// sure that the brackets around IPv6 addresses are kept.
hostname = hostname.replace(/:\d*$/, '');
port = parseInt(port) || DEFAULT_PORTS[proto] || 0;
if (!shouldProxy(hostname, port)) {
return ''; // Don't proxy URLs that match NO_PROXY.
}
var proxy = getEnv(proto + '_proxy') || getEnv('all_proxy');
if (proxy && proxy.indexOf('://') === -1) {
// Missing scheme in proxy, default to the requested URL's scheme.
proxy = proto + '://' + proxy;
}
return proxy;
}
/**
* Determines whether a given URL should be proxied.
*
* @param {string} hostname - The host name of the URL.
* @param {number} port - The effective port of the URL.
* @returns {boolean} Whether the given URL should be proxied.
* @private
*/
function shouldProxy(hostname, port) {
var NO_PROXY = getEnv('no_proxy').toLowerCase();
if (!NO_PROXY) {
return true; // Always proxy if NO_PROXY is not set.
}
if (NO_PROXY === '*') {
return false; // Never proxy if wildcard is set.
}
return NO_PROXY.split(/[,\s]/).every(function(proxy) {
if (!proxy) {
return true; // Skip zero-length hosts.
}
var parsedProxy = proxy.match(/^(.+):(\d+)$/);
var parsedProxyHostname = parsedProxy ? parsedProxy[1] : proxy;
var parsedProxyPort = parsedProxy ? parseInt(parsedProxy[2]) : 0;
if (parsedProxyPort && parsedProxyPort !== port) {
return true; // Skip if ports don't match.
}
if (!/^[.*]/.test(parsedProxyHostname)) {
// No wildcards, so stop proxying if there is an exact match.
return hostname !== parsedProxyHostname;
}
if (parsedProxyHostname.charAt(0) === '*') {
// Remove leading wildcard.
parsedProxyHostname = parsedProxyHostname.slice(1);
}
// Stop proxying if the hostname ends with the no_proxy host.
return !hostname.endsWith(parsedProxyHostname);
});
}
/**
* Get the value for an environment variable.
*
* @param {string} key - The name of the environment variable.
* @return {string} The value of the environment variable.
* @private
*/
function getEnv(key) {
return process.env[key.toLowerCase()] || process.env[key.toUpperCase()] || '';
}
exports.getProxyForUrl = getProxyForUrl;
+12
-4
package.json
{
"name": "proxy-from-env",
"version": "2.0.0",
"version": "2.1.0",
"description": "Offers getProxyForUrl to get the proxy URL for a URL, respecting the *_PROXY (e.g. HTTP_PROXY) and NO_PROXY environment variables.",
"main": "index.js",
"exports": "./index.js",
"main": "index.cjs",
"exports": {
"import": "./index.js",
"require": "./index.cjs"
},
"files": ["index.js", "index.cjs"],
"scripts": {
"lint": "eslint *.js *.mjs",
"lint": "eslint *.js *.mjs *.cjs",
"test": "node --test ./test.js",
"test-require": "node ./test-require.cjs",
"test-coverage": "node --experimental-test-coverage --test-reporter=lcov --test-reporter-destination=lcov.info ./test.js",

@@ -34,3 +39,6 @@ "test-coverage-as-html": "npm run test-coverage && genhtml lcov.info -o coverage/"

"type": "module",
"engines": {
"node": ">=10"
},
"sideEffects": false
}
+11
-2
README.md

@@ -14,2 +14,11 @@ # proxy-from-env

If your application makes important (security) decisions based on the URL, be
consistent in the mechanism to parse and validate URLs, as differences in URL
parsing behavior can affect the outcome of proxy resolution.
Strings are parsed with the standard `URL` API, as of `proxy-from-env@2.0.0`.
Older versions relied on the (now deprecated) `url.parse` method instead.
Invalid values in environment variables are not handled by the library
([#41](https://github.com/Rob--W/proxy-from-env/issues/41)).
It is your responsibility to actually proxy the request using the given URL.

@@ -94,4 +103,4 @@

## Environment variables
The environment variables can be specified in lowercase or uppercase, with the
lowercase name having precedence over the uppercase variant. A variable that is
The environment variables can be specified in all lowercase or all uppercase,
with lowercase taking precedence over the uppercase variant. A variable that is
not set has the same meaning as a variable that is set but has no value.

@@ -98,0 +107,0 @@ 

-66
.github/workflows/run-tests.yaml
on: [ push, pull_request, workflow_dispatch ]
name: Tests
jobs:
lint:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v6
- uses: actions/setup-node@v6
- run: npm install # install eslint
- run: npm run lint
test-node:
runs-on: ubuntu-latest
strategy:
matrix:
node_version:
# The oldest Node.js version that we can still test.
# Node v20.11.0+ required for --test-reporter=lcov (test-coverage)
# Node v20.19.0 required for require(esm) require("proxy-from-env")
- 20
# Other Node.js versions that have not reached End-of-life status per
# https://nodejs.org/en/about/previous-releases
- 24
- 22
- 25
# ^ latest version may be an unstable (odd) version when the latest
# (even) version is not yet available.
steps:
- uses: actions/checkout@v6
- name: Use Node.js ${{ matrix.node_version }}
uses: actions/setup-node@v6
with:
node-version: ${{ matrix.node_version }}
# Note: no npm ci / npm install:
# The package has no non-dev dependencies.
# We rely on Node.js's built-in test module and reporter,
# and do not require any dev dependencies either.
# test-coverage will also run the tests, but does not print helpful output upon test failure.
# So we also run the tests separately.
- run: npm test
# note: --experimental-test-coverage requires Node v18.15.0+
# note: --test-reporter=lcov requires Node v20.11.0+ (https://github.com/nodejs/node/pull/50018)
- run: npm run test-coverage
- name: Send coverage for Node ${{ matrix.node_version }} to Coveralls
uses: coverallsapp/github-action@v2
with:
parallel: true
file: lcov.info
flag-name: coverage-node-${{ matrix.node_version }}
coveralls:
name: Report to Coveralls
needs: [ test-node ]
if: ${{ github.repository == 'Rob--W/proxy-from-env' }}
runs-on: ubuntu-latest
steps:
- uses: coverallsapp/github-action@v2
with:
parallel-finished: true
-54
eslint.config.mjs
import {defineConfig, globalIgnores} from 'eslint/config';
// These rules are from node-style-guide@1.0.0 to ensure some consistent style.
// Many of these rules are depecated and will be removed in eslint@11. At that
// point we should consider migration to @stylistic/eslint-plugin or prettier.
const rules = {
'array-bracket-spacing': [2, 'never'],
'block-scoped-var': 2,
'brace-style': [2, '1tbs'],
'camelcase': 1,
'computed-property-spacing': [2, 'never'],
'curly': 2,
'eol-last': 2,
'eqeqeq': [2, 'smart'],
'max-depth': [1, 3],
'max-len': [1, 80],
'max-statements': [1, 15],
'new-cap': 1,
'no-extend-native': 2,
'no-mixed-spaces-and-tabs': 2,
'no-trailing-spaces': 2,
'no-unused-vars': 1,
'no-use-before-define': [2, 'nofunc'],
'object-curly-spacing': [2, 'never'],
'quotes': [2, 'single', 'avoid-escape'],
'semi': [2, 'always'],
'keyword-spacing': [2, {'before': true, 'after': true}],
'space-unary-ops': 2
};
export default defineConfig([
globalIgnores([
'coverage/', // Generated by: npm run test-coverage-as-html
]),
{
languageOptions: {
globals: {
// Minimum set of globals, supported in Node.
process: 'readonly',
}
},
rules,
},
{
files: ['test.js'],
languageOptions: {
globals: {
// Minimum set of globals, supported in Node.
process: 'readonly',
}
},
rules,
}
]);
-432
test.js
/* eslint max-statements:0 */
'use strict';
import {describe, it} from 'node:test';
import assert from 'node:assert';
import {parse as parseUrl} from 'node:url';
import {getProxyForUrl} from 'proxy-from-env';
// Runs the callback with process.env temporarily set to env.
function runWithEnv(env, callback) {
var originalEnv = process.env;
process.env = env;
try {
callback();
} finally {
process.env = originalEnv;
}
}
// Defines a test case that checks whether getProxyForUrl(input) === expected.
function testProxyUrl(env, expected, input) {
assert(typeof env === 'object' && env !== null);
// Copy object to make sure that the in param does not get modified between
// the call of this function and the use of it below.
env = JSON.parse(JSON.stringify(env));
var title = 'getProxyForUrl(' + JSON.stringify(input) + ')' +
' === ' + JSON.stringify(expected);
it(title, function() {
var actual;
runWithEnv(env, function() {
actual = getProxyForUrl(input);
});
assert.strictEqual(actual, expected);
});
}
describe('getProxyForUrl', function() {
describe('No proxy variables', function() {
var env = {};
testProxyUrl(env, '', 'http://example.com');
testProxyUrl(env, '', 'https://example.com');
testProxyUrl(env, '', 'ftp://example.com');
});
describe('Invalid URLs', function() {
var env = {};
env.ALL_PROXY = 'http://unexpected.proxy';
testProxyUrl(env, '', 'bogus');
testProxyUrl(env, '', '//example.com');
testProxyUrl(env, '', '://example.com');
testProxyUrl(env, '', '://');
testProxyUrl(env, '', '/path');
testProxyUrl(env, '', '');
testProxyUrl(env, '', 'http:');
testProxyUrl(env, '', 'http:/');
testProxyUrl(env, '', 'http://');
testProxyUrl(env, '', 'prototype://');
testProxyUrl(env, '', 'hasOwnProperty://');
testProxyUrl(env, '', '__proto__://');
testProxyUrl(env, '', 'http://abc\x00/');
testProxyUrl(env, '', undefined);
testProxyUrl(env, '', null);
testProxyUrl(env, '', {});
testProxyUrl(env, '', {host: 'x', protocol: 1});
testProxyUrl(env, '', {host: 1, protocol: 'x'});
describe('difference between url.parse and WHATWG URL', function() {
// Node 24 and later raise the following warning when url.parse is used:
//
// (node:11623) [DEP0169] DeprecationWarning: `url.parse()` behavior is
// not standardized and prone to errors that have security implications.
// Use the WHATWG URL API instead. CVEs are not issued for `url.parse()`
// vulnerabilities.
//
// The above refers to https://hackerone.com/reports/678487 which shows
// that a bare percentage sign is parsed inconsistently:
// - `url.parse` splits hosts.
// - WHATWG `URL` constructor raised an error.
//
// This test case shows the difference.
//
// For comparison:
// - curl (8.17.0) refuses to connect:
// $ http_proxy=http://localhost:1337 curl http://bad%
// curl:(3) URL rejected: Bad hostname
// - wget (GNU wget 1.25.0) passes "bad%" as Host header:
// $ http_proxy=http://localhost:1337 wget http://bad%
// (nc -l 1337 receives request with "bad% as Host header)
// - Python (3.13.11) passes "bad%" as Host header:
// $ http_proxy=http://localhost:1337 python3 -c \
// 'import urllib.request;urllib.request.urlopen("http://bad%")'
// (nc -l 1337 receives request with "bad% as Host header)
// A canonical URL does not have a single "%".
var badUrl = 'http://bad%';
// proxy-from-env@1.1.0 and earlier accepted bad URLs:
testProxyUrl(env, 'http://unexpected.proxy', parseUrl(badUrl));
// Sanity check: WHATWG URL constructor rejects badUrl.
assert(!URL.canParse(badUrl));
// Verify current proxy-from-env behavior. Should reject without throwing.
testProxyUrl(env, '', badUrl);
});
});
describe('http_proxy and HTTP_PROXY', function() {
var env = {};
env.HTTP_PROXY = 'http://http-proxy';
testProxyUrl(env, '', 'https://example');
testProxyUrl(env, 'http://http-proxy', 'http://example');
testProxyUrl(env, 'http://http-proxy', parseUrl('http://example'));
// eslint-disable-next-line camelcase
env.http_proxy = 'http://priority';
testProxyUrl(env, 'http://priority', 'http://example');
});
describe('http_proxy with non-sensical value', function() {
var env = {};
// Crazy values should be passed as-is. It is the responsibility of the
// one who launches the application that the value makes sense.
// TODO: Should we be stricter and perform validation?
env.HTTP_PROXY = 'Crazy \n!() { ::// }';
testProxyUrl(env, 'Crazy \n!() { ::// }', 'http://wow');
// The implementation assumes that the HTTP_PROXY environment variable is
// somewhat reasonable, and if the scheme is missing, it is added.
// Garbage in, garbage out some would say...
env.HTTP_PROXY = 'crazy without colon slash slash';
testProxyUrl(env, 'http://crazy without colon slash slash', 'http://wow');
});
describe('https_proxy and HTTPS_PROXY', function() {
var env = {};
// Assert that there is no fall back to http_proxy
env.HTTP_PROXY = 'http://unexpected.proxy';
testProxyUrl(env, '', 'https://example');
env.HTTPS_PROXY = 'http://https-proxy';
testProxyUrl(env, 'http://https-proxy', 'https://example');
// eslint-disable-next-line camelcase
env.https_proxy = 'http://priority';
testProxyUrl(env, 'http://priority', 'https://example');
});
describe('ftp_proxy', function() {
var env = {};
// Something else than http_proxy / https, as a sanity check.
env.FTP_PROXY = 'http://ftp-proxy';
testProxyUrl(env, 'http://ftp-proxy', 'ftp://example');
testProxyUrl(env, '', 'ftps://example');
});
describe('all_proxy', function() {
var env = {};
env.ALL_PROXY = 'http://catch-all';
testProxyUrl(env, 'http://catch-all', 'https://example');
// eslint-disable-next-line camelcase
env.all_proxy = 'http://priority';
testProxyUrl(env, 'http://priority', 'https://example');
});
describe('all_proxy without scheme', function() {
var env = {};
env.ALL_PROXY = 'noscheme';
testProxyUrl(env, 'http://noscheme', 'http://example');
testProxyUrl(env, 'https://noscheme', 'https://example');
// The module does not impose restrictions on the scheme.
testProxyUrl(env, 'bogus-scheme://noscheme', 'bogus-scheme://example');
// But the URL should still be valid.
testProxyUrl(env, '', 'bogus');
});
describe('no_proxy empty', function() {
var env = {};
env.HTTPS_PROXY = 'http://proxy';
// NO_PROXY set but empty.
env.NO_PROXY = '';
testProxyUrl(env, 'http://proxy', 'https://example');
// No entries in NO_PROXY (comma).
env.NO_PROXY = ',';
testProxyUrl(env, 'http://proxy', 'https://example');
// No entries in NO_PROXY (whitespace).
env.NO_PROXY = ' ';
testProxyUrl(env, 'http://proxy', 'https://example');
// No entries in NO_PROXY (multiple whitespace / commas).
env.NO_PROXY = ',\t,,,\n, ,\r';
testProxyUrl(env, 'http://proxy', 'https://example');
});
describe('no_proxy=example (single host)', function() {
var env = {};
env.HTTP_PROXY = 'http://proxy';
env.NO_PROXY = 'example';
testProxyUrl(env, '', 'http://example');
testProxyUrl(env, '', 'http://example:80');
testProxyUrl(env, '', 'http://example:0');
testProxyUrl(env, '', 'http://example:1337');
testProxyUrl(env, 'http://proxy', 'http://sub.example');
testProxyUrl(env, 'http://proxy', 'http://prefexample');
testProxyUrl(env, 'http://proxy', 'http://example.no');
testProxyUrl(env, 'http://proxy', 'http://a.b.example');
testProxyUrl(env, 'http://proxy', 'http://host/example');
});
describe('no_proxy=sub.example (subdomain)', function() {
var env = {};
env.HTTP_PROXY = 'http://proxy';
env.NO_PROXY = 'sub.example';
testProxyUrl(env, 'http://proxy', 'http://example');
testProxyUrl(env, 'http://proxy', 'http://example:80');
testProxyUrl(env, 'http://proxy', 'http://example:0');
testProxyUrl(env, 'http://proxy', 'http://example:1337');
testProxyUrl(env, '', 'http://sub.example');
testProxyUrl(env, 'http://proxy', 'http://no.sub.example');
testProxyUrl(env, 'http://proxy', 'http://sub-example');
testProxyUrl(env, 'http://proxy', 'http://example.sub');
});
describe('no_proxy=example:80 (host + port)', function() {
var env = {};
env.HTTP_PROXY = 'http://proxy';
env.NO_PROXY = 'example:80';
testProxyUrl(env, '', 'http://example');
testProxyUrl(env, '', 'http://example:80');
testProxyUrl(env, '', 'http://example:0');
testProxyUrl(env, 'http://proxy', 'http://example:1337');
testProxyUrl(env, 'http://proxy', 'http://sub.example');
testProxyUrl(env, 'http://proxy', 'http://prefexample');
testProxyUrl(env, 'http://proxy', 'http://example.no');
testProxyUrl(env, 'http://proxy', 'http://a.b.example');
});
describe('no_proxy=.example (host suffix)', function() {
var env = {};
env.HTTP_PROXY = 'http://proxy';
env.NO_PROXY = '.example';
testProxyUrl(env, 'http://proxy', 'http://example');
testProxyUrl(env, 'http://proxy', 'http://example:80');
testProxyUrl(env, 'http://proxy', 'http://example:1337');
testProxyUrl(env, '', 'http://sub.example');
testProxyUrl(env, '', 'http://sub.example:80');
testProxyUrl(env, '', 'http://sub.example:1337');
testProxyUrl(env, 'http://proxy', 'http://prefexample');
testProxyUrl(env, 'http://proxy', 'http://example.no');
testProxyUrl(env, '', 'http://a.b.example');
});
describe('no_proxy=*', function() {
var env = {};
env.HTTP_PROXY = 'http://proxy';
env.NO_PROXY = '*';
testProxyUrl(env, '', 'http://example.com');
});
describe('no_proxy=*.example (host suffix with *.)', function() {
var env = {};
env.HTTP_PROXY = 'http://proxy';
env.NO_PROXY = '*.example';
testProxyUrl(env, 'http://proxy', 'http://example');
testProxyUrl(env, 'http://proxy', 'http://example:80');
testProxyUrl(env, 'http://proxy', 'http://example:1337');
testProxyUrl(env, '', 'http://sub.example');
testProxyUrl(env, '', 'http://sub.example:80');
testProxyUrl(env, '', 'http://sub.example:1337');
testProxyUrl(env, 'http://proxy', 'http://prefexample');
testProxyUrl(env, 'http://proxy', 'http://example.no');
testProxyUrl(env, '', 'http://a.b.example');
});
describe('no_proxy=*example (substring suffix)', function() {
var env = {};
env.HTTP_PROXY = 'http://proxy';
env.NO_PROXY = '*example';
testProxyUrl(env, '', 'http://example');
testProxyUrl(env, '', 'http://example:80');
testProxyUrl(env, '', 'http://example:1337');
testProxyUrl(env, '', 'http://sub.example');
testProxyUrl(env, '', 'http://sub.example:80');
testProxyUrl(env, '', 'http://sub.example:1337');
testProxyUrl(env, '', 'http://prefexample');
testProxyUrl(env, '', 'http://a.b.example');
testProxyUrl(env, 'http://proxy', 'http://example.no');
testProxyUrl(env, 'http://proxy', 'http://host/example');
});
describe('no_proxy=.*example (arbitrary wildcards are NOT supported)',
function() {
var env = {};
env.HTTP_PROXY = 'http://proxy';
env.NO_PROXY = '.*example';
testProxyUrl(env, 'http://proxy', 'http://example');
testProxyUrl(env, 'http://proxy', 'http://sub.example');
testProxyUrl(env, 'http://proxy', 'http://sub.example');
testProxyUrl(env, 'http://proxy', 'http://prefexample');
testProxyUrl(env, 'http://proxy', 'http://x.prefexample');
testProxyUrl(env, 'http://proxy', 'http://a.b.example');
});
describe('no_proxy=[::1],[::2]:80,10.0.0.1,10.0.0.2:80 (IP addresses)',
function() {
var env = {};
env.HTTP_PROXY = 'http://proxy';
env.NO_PROXY = '[::1],[::2]:80,10.0.0.1,10.0.0.2:80';
testProxyUrl(env, '', 'http://[::1]/');
testProxyUrl(env, '', 'http://[::1]:80/');
testProxyUrl(env, '', 'http://[::1]:1337/');
testProxyUrl(env, '', 'http://[::2]/');
testProxyUrl(env, '', 'http://[::2]:80/');
testProxyUrl(env, 'http://proxy', 'http://[::2]:1337/');
testProxyUrl(env, '', 'http://10.0.0.1/');
testProxyUrl(env, '', 'http://10.0.0.1:80/');
testProxyUrl(env, '', 'http://10.0.0.1:1337/');
testProxyUrl(env, '', 'http://10.0.0.2/');
testProxyUrl(env, '', 'http://10.0.0.2:80/');
testProxyUrl(env, 'http://proxy', 'http://10.0.0.2:1337/');
});
describe('no_proxy=127.0.0.1/32 (CIDR is NOT supported)', function() {
var env = {};
env.HTTP_PROXY = 'http://proxy';
env.NO_PROXY = '127.0.0.1/32';
testProxyUrl(env, 'http://proxy', 'http://127.0.0.1');
testProxyUrl(env, 'http://proxy', 'http://127.0.0.1/32');
});
describe('no_proxy=127.0.0.1 does NOT match localhost', function() {
var env = {};
env.HTTP_PROXY = 'http://proxy';
env.NO_PROXY = '127.0.0.1';
testProxyUrl(env, '', 'http://127.0.0.1');
// We're not performing DNS queries, so this shouldn't match.
testProxyUrl(env, 'http://proxy', 'http://localhost');
});
describe('no_proxy with protocols that have a default port', function() {
var env = {};
env.WS_PROXY = 'http://ws';
env.WSS_PROXY = 'http://wss';
env.HTTP_PROXY = 'http://http';
env.HTTPS_PROXY = 'http://https';
env.GOPHER_PROXY = 'http://gopher';
env.FTP_PROXY = 'http://ftp';
env.ALL_PROXY = 'http://all';
env.NO_PROXY = 'xxx:21,xxx:70,xxx:80,xxx:443';
testProxyUrl(env, '', 'http://xxx');
testProxyUrl(env, '', 'http://xxx:80');
testProxyUrl(env, 'http://http', 'http://xxx:1337');
testProxyUrl(env, '', 'ws://xxx');
testProxyUrl(env, '', 'ws://xxx:80');
testProxyUrl(env, 'http://ws', 'ws://xxx:1337');
testProxyUrl(env, '', 'https://xxx');
testProxyUrl(env, '', 'https://xxx:443');
testProxyUrl(env, 'http://https', 'https://xxx:1337');
testProxyUrl(env, '', 'wss://xxx');
testProxyUrl(env, '', 'wss://xxx:443');
testProxyUrl(env, 'http://wss', 'wss://xxx:1337');
testProxyUrl(env, '', 'gopher://xxx');
testProxyUrl(env, '', 'gopher://xxx:70');
testProxyUrl(env, 'http://gopher', 'gopher://xxx:1337');
testProxyUrl(env, '', 'ftp://xxx');
testProxyUrl(env, '', 'ftp://xxx:21');
testProxyUrl(env, 'http://ftp', 'ftp://xxx:1337');
});
describe('no_proxy should not be case-sensitive', function() {
var env = {};
env.HTTP_PROXY = 'http://proxy';
env.NO_PROXY = 'XXX,YYY,ZzZ';
testProxyUrl(env, '', 'http://xxx');
testProxyUrl(env, '', 'http://XXX');
testProxyUrl(env, '', 'http://yyy');
testProxyUrl(env, '', 'http://YYY');
testProxyUrl(env, '', 'http://ZzZ');
testProxyUrl(env, '', 'http://zZz');
});
// Up until proxy-from-env@1.1.0, proxy-from-env had undocumented support for
// specifying proxies through npm_config_ prefixes. The historical reasons
// for them are no longer relevant:
// https://github.com/Rob--W/proxy-from-env/issues/13#issuecomment-3150256653
describe('NPM proxy configuration', function() {
describe('npm_config_*_proxy variables are unsupported', function() {
var env = {};
// eslint-disable-next-line camelcase
env.npm_config_http_proxy = 'http://http-proxy';
// eslint-disable-next-line camelcase
env.npm_config_https_proxy = 'http://https-proxy';
// eslint-disable-next-line camelcase
env.npm_config_proxy = 'http://unexpected-proxy';
testProxyUrl(env, '', 'http://example');
testProxyUrl(env, '', 'https://example');
});
});
});