Add HTTP basic authentication for Node.

lib/adapters/http.js

@@ -46,6 +46,14 @@ module.exports = function httpAdapter(resolve, reject, config) {
     headers['Content-Length'] = data.length;
   }
 
+  // HTTP basic authentication
+  var auth = undefined;
+  if (config.auth) {
+    var username = config.auth.user || config.auth.username;
+    var password = config.auth.pass || config.auth.password;
+    auth = username + ':' + password;
+  }
+
   // Parse url
   var parsed = url.parse(config.url);
   var options = {
@@ -54,7 +62,8 @@ module.exports = function httpAdapter(resolve, reject, config) {
     path: buildURL(parsed.path, config.params, config.paramsSerializer).replace(/^\?/, ''),
     method: config.method,
     headers: headers,
-    agent: config.agent
+    agent: config.agent,
+    auth: auth
   };
 
   // Create the request