@spalger/kibana/src/ui/public/directives/validate_cidr_mask.js

Kibana is an open source (Apache Licensed), browser based analytics and search dashboard for Elasticsearch. Kibana is a snap to setup and start using. Kibana strives to be easy to get started with, while also being flexible and powerful, just like Elastic

define(function (require) {
  var _ = require('lodash');
  var CidrMask = require('ui/utils/CidrMask');

  require('ui/modules').get('kibana').directive('validateCidrMask', function () {
    return {
      restrict: 'A',
      require: 'ngModel',
      scope: {
        'ngModel': '='
      },
      link: function ($scope, elem, attr, ngModel) {
        ngModel.$parsers.unshift(validateCidrMask);
        ngModel.$formatters.unshift(validateCidrMask);

        function validateCidrMask(mask) {
          if (mask == null || mask === '') {
            ngModel.$setValidity('cidrMaskInput', true);
            return null;
          }

          try {
            mask = new CidrMask(mask);
            ngModel.$setValidity('cidrMaskInput', true);
            return mask.toString();
          } catch (e) {
            ngModel.$setValidity('cidrMaskInput', false);
          }
        }
      }
    };
  });
});