Add a JWT-based LDAP/AD authenticator.

lib/util/requtil.js

@@ -0,0 +1,28 @@
+var util = require('util')
+
+var Promise = require('bluebird')
+
+function ValidationError(message, errors) {
+  Error.call(this, message)
+  this.name = 'ValidationError'
+  this.errors = errors
+  Error.captureStackTrace(this, ValidationError)
+}
+
+util.inherits(ValidationError, Error)
+
+module.exports.ValidationError = ValidationError
+
+module.exports.validate = function(req, rules) {
+  return new Promise(function(resolve, reject) {
+    rules()
+
+    var errors = req.validationErrors()
+    if (!errors) {
+      resolve()
+    }
+    else {
+      reject(new ValidationError('validation error', errors))
+    }
+  })
+}