Welcome!

Adobe Flex Authors: Matthew Lobas, PR.com Newswire, Shelly Palmer, Kevin Benedict

Related Topics: Adobe Flex, ColdFusion

Adobe Flex: Article

Building a Forum with Macromedia Dreamweaver From Adobe Part 2

User Authentication System

In Part 1 of this tutorial, we taught you how to pull information from a database in order to set up a forum front end and how to style it with CSS. In this article, you will see how easy it is to build a user authentication system for your forum.

Setting Up User Authentication
In the following sections of this tutorial, you will use ImpAKT to build a user authentication system for your forum. You need authentication to prevent pranksters from posting a load of garbage to your forum and getting away with it. If users want to post messages to the forum, they must register an account, activate it, and then log in. Only then will they be able to post messages to the forum.

To build the user authentication system, you will do the following:

  • Configure user login settings from the InterAKT Control Panel.
  • Create a user registration page.
  • Create the user login page.
  • Create a logout link.
  • Use conditional regions to control which content is public and which is private.
Configuring Login Settings
The InterAKT Control Panel (Figure 1) comes with your ImpAKT installation and is a central place for all configuration options for your site. The InterAKT Control Panel can be accessed from the MX Kollection tab of the Insert bar.

Alternatively, you can access the InterAKT Control Panel by clicking the Server Behaviors tab > MX Kollection submenu.

The InterAKT Control Panel offers a quick and convenient way to configure the most common settings for your development environment and for your site. Once configured, the settings will be remembered, thus saving you a lot of time.

Here are just a few of the settings you can configure with the InterAKT Control Panel:

  • Date formats: Change the date and time formats for the pages built with ImpAKT to match your specific regional settings (American, German, and so on).
  • Language settings: Change the language for form buttons, error messages, labels, and hints generated by ImpAKT. You can choose one of the predefined 11 languages.
  • Debugging mode: Configure the level of detail of error messages or set the error reporting method (errors can be sent by e-mail to the webmaster or logged to a file on the server).
  • Login settings: Configure the user authentication options.
  • E-mail settings: Configure the outgoing e-mail server, port, user name, and password.
  • CSS skins: Change the look of the entire site by selecting a different CSS skin.
  • User interface persistence and database caching: Enable these settings to speed up your work. If user interface persistence is enabled, all ImpAKT interfaces will remember the settings you entered the last time.
All ImpAKT interfaces feature contextual help - short instructions that guide you through configuring each setting.

In addition to these settings, you can also configure an image processing library, perform product upgrades, or update your site.

The Login Settings section is the place where you configure all user authentication options, including database information, password encryption, user levels, and redirect pages. Follow these steps to configure the login settings:

  • In the InterAKT Control Panel, click the Login Settings icon. This opens a dialog box showing four tabs: Options, Database, Session, and User Levels (Figure 2).
  • Configure the Options tab:
    For increased security, passwords will be encrypted in the database
    For this example, the forum will not use access levels, so set the restriction to use user name and password only
  • Leave the Auto Login Validity value at its default setting. Users will be able to automatically log in to the forum. They will be asked to authenticate again only if 30 days have passed since the last time they visited the forum.
  • In the Database tab, define which table stores the user information and what columns to use for authentication:
Select the database connection (connForum) and the table that stores user information (user_usr). The primary key is automatically detected and set to id_usr.
From the Username pop-up menu, select the name_usr column.
From the Password pop-up menu, select the password_usr column.
From the E-mail pop-up menu, select the email_usr column.
From the Active pop-up menu, select the active_usr column. If you specify a column that stores the account status (active/inactive), account activation will be available. When a user registers an account, an e-mail message will be sent containing an activation link. Unless the user clicks that link, the account cannot be used.

In the Random key pop-up menu, select the randomkey_usr column. A random key consists of a randomly generated set of alphanumeric characters used for improving website security. A random key is commonly used in user account activation, online purchases, or other activities that use URLs that ought to be difficult to guess. This prevents potentially malevolent users from accessing the URLs by directly entering them in the browser window in order to activate accounts for other users. ImpAKT automatically generates unique random keys for each user and stores them in the specified column.

  • In the Session tab, you can define which session variables to create upon login and what information to store in them. By default, two variables will be created: kt_login_id (stores the user's unique ID) and kt_login_user (stores the user name). You don't need additional session variables for this tutorial, so leave this tab as is.
  • Because the forum does not use access levels, you need to define on the User Levels tab only those pages to redirect the user to (Figure 3). You have to set the login page and the pages to be redirected to when authentication succeeds or fails. Use the login.php page from the site root for the Login Page and Default Redirect on Fail text boxes. When the login is successful, the user must be redirected to the forum home page.
  • Click OK to apply the changes and then click Close to exit the InterAKT Control Panel.
Because sending e-mail notifications for account activation is part of the user registration process, you will also need to configure the e-mail settings as explained in the following section.

Configuring E-mail Settings
Forum users will receive several automatic e-mail messages:

  • Account activation e-mail
  • Welcome message after activation
  • Password reminder e-mail
  • Topic reply notifications
This is why you need to set an outgoing e-mail server. You can configure e-mail settings from the InterAKT Control Panel by clicking the E-mail Settings section.

In the dialog box that opens, you can configure the following:

  • Outgoing server's name or IP address; if you are not sure about this, consult your network administrator
  • Port number (25 by default)
  • Username and password used to log in to the mail server (if required)
  • Default sender's e-mail address; this will appear in the From field in all message headers sent from the forum
Click OK to save the configuration, then click Close to exit the control panel. You have finished configuring user authentication for your site.

In the next section, you will build the user registration form.

More Stories By Marius Zaharia

Marius Zaharia is the documentation manager at InterAKT Online, a developer of professional tools for dynamic web development. When he's not writing articles and tutorials to guide web developers, he enjoys learning new things and exploring new technologies. His interests range from web development to politics and avantgarde electronic music.

More Stories By Cristian Ivascu

Cristian Ivascu is a technical writer with InterAKT Online. He is a strong supporter of open-source software and a fan of Japanese culture and rock music.

Comments (3)

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


IoT & Smart Cities Stories
Nicolas Fierro is CEO of MIMIR Blockchain Solutions. He is a programmer, technologist, and operations dev who has worked with Ethereum and blockchain since 2014. His knowledge in blockchain dates to when he performed dev ops services to the Ethereum Foundation as one the privileged few developers to work with the original core team in Switzerland.
René Bostic is the Technical VP of the IBM Cloud Unit in North America. Enjoying her career with IBM during the modern millennial technological era, she is an expert in cloud computing, DevOps and emerging cloud technologies such as Blockchain. Her strengths and core competencies include a proven record of accomplishments in consensus building at all levels to assess, plan, and implement enterprise and cloud computing solutions. René is a member of the Society of Women Engineers (SWE) and a m...
Andrew Keys is Co-Founder of ConsenSys Enterprise. He comes to ConsenSys Enterprise with capital markets, technology and entrepreneurial experience. Previously, he worked for UBS investment bank in equities analysis. Later, he was responsible for the creation and distribution of life settlement products to hedge funds and investment banks. After, he co-founded a revenue cycle management company where he learned about Bitcoin and eventually Ethereal. Andrew's role at ConsenSys Enterprise is a mul...
Whenever a new technology hits the high points of hype, everyone starts talking about it like it will solve all their business problems. Blockchain is one of those technologies. According to Gartner's latest report on the hype cycle of emerging technologies, blockchain has just passed the peak of their hype cycle curve. If you read the news articles about it, one would think it has taken over the technology world. No disruptive technology is without its challenges and potential impediments t...
If a machine can invent, does this mean the end of the patent system as we know it? The patent system, both in the US and Europe, allows companies to protect their inventions and helps foster innovation. However, Artificial Intelligence (AI) could be set to disrupt the patent system as we know it. This talk will examine how AI may change the patent landscape in the years to come. Furthermore, ways in which companies can best protect their AI related inventions will be examined from both a US and...
In his general session at 19th Cloud Expo, Manish Dixit, VP of Product and Engineering at Dice, discussed how Dice leverages data insights and tools to help both tech professionals and recruiters better understand how skills relate to each other and which skills are in high demand using interactive visualizations and salary indicator tools to maximize earning potential. Manish Dixit is VP of Product and Engineering at Dice. As the leader of the Product, Engineering and Data Sciences team at D...
Bill Schmarzo, Tech Chair of "Big Data | Analytics" of upcoming CloudEXPO | DXWorldEXPO New York (November 12-13, 2018, New York City) today announced the outline and schedule of the track. "The track has been designed in experience/degree order," said Schmarzo. "So, that folks who attend the entire track can leave the conference with some of the skills necessary to get their work done when they get back to their offices. It actually ties back to some work that I'm doing at the University of San...
When talking IoT we often focus on the devices, the sensors, the hardware itself. The new smart appliances, the new smart or self-driving cars (which are amalgamations of many ‘things'). When we are looking at the world of IoT, we should take a step back, look at the big picture. What value are these devices providing. IoT is not about the devices, its about the data consumed and generated. The devices are tools, mechanisms, conduits. This paper discusses the considerations when dealing with the...
Bill Schmarzo, author of "Big Data: Understanding How Data Powers Big Business" and "Big Data MBA: Driving Business Strategies with Data Science," is responsible for setting the strategy and defining the Big Data service offerings and capabilities for EMC Global Services Big Data Practice. As the CTO for the Big Data Practice, he is responsible for working with organizations to help them identify where and how to start their big data journeys. He's written several white papers, is an avid blogge...
Dynatrace is an application performance management software company with products for the information technology departments and digital business owners of medium and large businesses. Building the Future of Monitoring with Artificial Intelligence. Today we can collect lots and lots of performance data. We build beautiful dashboards and even have fancy query languages to access and transform the data. Still performance data is a secret language only a couple of people understand. The more busine...