Book Image

Mastering ServiceNow - Second Edition

Book Image

Mastering ServiceNow - Second Edition

Overview of this book

ServiceNow is a SaaS application that provides workflow form-based applications. It is an ideal platform for creating enterprise-level applications giving requesters and fulfillers improved visibility and access to a process. ServiceNow-based applications often replace email by providing a better way to get work done. The book steps through the main aspects of the ServiceNow platform, from the ground up. It starts by exploring the core architecture of ServiceNow, including building the right data structure. To add business logic and control data, and interactivity to user interaction, you will be shown how to code on both server and the client. You will then learn more about the power of tasks, events and notifications. The book will then focus on using web services and other mechanisms to integrate ServiceNow with other systems. Furthermore, you will learn how to secure applications and data, and understand how ServiceNow performs logging and error reporting. You will then be shown how to package your applications and changes, so they can be installed elsewhere and ways to maintain them easily. If you wish to create an alternative simple interface, then explore ways to make ServiceNow beautiful using Service Portal. By the end of the book, you will know the fundamentals of the ServiceNow platform, helping you be a better ServiceNow System Administrator or developer.
Table of Contents (18 chapters)
Mastering ServiceNow Second Edition
Credits
Notice
About the Author
About the Reviewer
www.PacktPub.com
Preface

Taking control of the browser


Client-side code is executed by the browser. This means that, in many respects, it should be considered to be a polite request only! A technical user can easily undo the setting of a mandatory field that was achieved through a UI Policy or by GlideForm, as we'll see in this example:

  1. Open the Check-in form in a new window. Do this by typing x_hotel_check_in.FORM in the application navigator filter text and pressing enter.

    Tip

    You must do this in a new window to escape the frames that interfere with the script.

  2. Populate the fields as you wish, but ensure you set the Date field to a value in the past. This means the Comments field will be shown and made mandatory.

    Because of the UI Policy created earlier in the chapter, if you try to submit the form without a comment, the platform will notice and present an alert box. It won't let you send the data to the instance without filling in the comments.

    Now, pretend to be a malicious user. In the address bar of your browser...