mirror of
https://gitee.com/la-vie/console-pro-free.git
synced 2024-12-26 11:49:14 +00:00
109 lines
3.3 KiB
JavaScript
109 lines
3.3 KiB
JavaScript
'use strict';
|
|
|
|
var parseUrl = require('url').parse;
|
|
|
|
var DEFAULT_PORTS = {
|
|
ftp: 21,
|
|
gopher: 70,
|
|
http: 80,
|
|
https: 443,
|
|
ws: 80,
|
|
wss: 443,
|
|
};
|
|
|
|
var stringEndsWith = String.prototype.endsWith || function(s) {
|
|
return s.length <= this.length &&
|
|
this.indexOf(s, this.length - s.length) !== -1;
|
|
};
|
|
|
|
/**
|
|
* @param {string|object} url - The URL, or the result from 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*$/, '');
|
|
port = parseInt(port) || DEFAULT_PORTS[proto] || 0;
|
|
if (!shouldProxy(hostname, port)) {
|
|
return ''; // Don't proxy URLs that match NO_PROXY.
|
|
}
|
|
|
|
var proxy =
|
|
getEnv('npm_config_' + proto + '_proxy') ||
|
|
getEnv(proto + '_proxy') ||
|
|
getEnv('npm_config_proxy') ||
|
|
getEnv('all_proxy');
|
|
if (proxy && proxy.indexOf('://') === -1) {
|
|
// Missing scheme in proxy, default to the requested URL's scheme.
|
|
proxy = proto + '://' + proxy;
|
|
}
|
|
return proxy;
|
|
}
|
|
|
|
/**
|
|
* Determines whether a given URL should be proxied.
|
|
*
|
|
* @param {string} hostname - The host name of the URL.
|
|
* @param {number} port - The effective port of the URL.
|
|
* @returns {boolean} Whether the given URL should be proxied.
|
|
* @private
|
|
*/
|
|
function shouldProxy(hostname, port) {
|
|
var NO_PROXY =
|
|
(getEnv('npm_config_no_proxy') || getEnv('no_proxy')).toLowerCase();
|
|
if (!NO_PROXY) {
|
|
return true; // Always proxy if NO_PROXY is not set.
|
|
}
|
|
if (NO_PROXY === '*') {
|
|
return false; // Never proxy if wildcard is set.
|
|
}
|
|
|
|
return NO_PROXY.split(/[,\s]/).every(function(proxy) {
|
|
if (!proxy) {
|
|
return true; // Skip zero-length hosts.
|
|
}
|
|
var parsedProxy = proxy.match(/^(.+):(\d+)$/);
|
|
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 !stringEndsWith.call(hostname, 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;
|