Tons of Solutions Engineering work done today for the rest of the CS team! Headway, Howard Hanna, Engels, Brighton, etc. Also completed Datasnippers auth flow and worked on Anthology's script. Cloned Anthology's courses (900..) and will clone Full Story on Monday.

Scripts/node_modules/proxy-from-env/index.js

@@ -0,0 +1,108 @@
+'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;