Book Image

Railo 3 Beginner's Guide

By : Mark Drew , Gert Franz, Paul Klinkenberg, Jordan Michaels
Book Image

Railo 3 Beginner's Guide

By: Mark Drew , Gert Franz, Paul Klinkenberg, Jordan Michaels

Overview of this book

<p>Railo Server is one of the quickest ways to start developing complex web applications online. Widely considered as the fastest CFML (ColdFusion Markup Language) engine, Railo allows you to create dynamic web pages that can change depending on user input, database lookups, or even the time of day.</p> <p>Railo 3 Beginner's Guide will show you how to get up and running with Railo, as well as developing your web applications with the greatest of ease. You will learn how to install Railo and the basics of CFML to allow you to gradually build up your knowledge, and your dynamic web applications, as the book progresses.</p> <p>Using Packt’s Beginner's Guide approach, this book will guide you, with step-by-step instructions, through installing the Railo Server on various environments. You will learn how to use caches, resources, Event Gateways and special scripting functions that will allow you to create webpages with limitless functionality. You will even explore methods of extending Railo by adding your own tags to the server and building custom extensions. Railo 3 Beginner's Guide is a must for anyone getting to grips with Railo Server.</p>
Table of Contents (16 chapters)
Railo 3
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface

Time for action - adding the secure tag


To add some security, we need to check if a user has logged in; we can do this by using a tag that can be added at the top of each file that we want to secure. Let's add a custom tag called <cf_secure> to our templates:

  1. 1. Create a template under the videoshare directory named secure.cfm and add the following code:

    <cfif session.userid NEQ 0>
    <cfinclude template="login.cfm">
    <cfabort>
    </cfif>
    
  2. 2. The tag is rather simple; it checks whether we have a session.userid set and makes sure it isn't equal to zero with the NEQ operator. If it is not set, it includes our login.cfm template and then aborts the rest of the rendering of the page. If there is a session.userid set, it will ignore this statement.

  3. 3. At the top of the upload.cfm file, let's call the <cf_secure> tag:

    <cf_secure>
    <cf_layout section="Upload Video">
    <cfparam name="FORM.title" default="">
    <cfoutput>
    <h1 id="upload_video">Upload...