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TUsers Security Component
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The TUsers Security Component is a set of components especially designed to allow developers to easily implement User Authentication and User Rights Management in applications developed with the Delphi and C++ Builder. The component allows to control the access of the application through a login screen, where the user’s name and password are requested. The component verifies if the user is valid and loads their access configurations from the security database, applying the user settings in the application
The TUsers Security Component is a set of components especially designed to allow developers to easily implement User Authentication and User Rights Management in applications developed with the Delphi and C++ Builder.
The component allows to control the access of the application through a login screen, where the user’s name and password are requested. The component verifies if the user is valid and loads their access configurations from the security database, applying the user settings in the application.
TUsers Security Component helps Delphi Developers implementing User Authentication and User Permissions Management quickly in their Desktop Applications. Password protect menus, buttons, actions, dbgrids, datasets, fields and virtually any VCL component, even 3rd-party componentes, like DevExpress and JVCL. The built-in and user-friendly Admistration Module gives you powerfull and easy user rigths management. Assigning / revoking permssions to the options of your application only using the mouse is very, very easy and your customers will be very satisfieds and impressed in how your application manages users and permissions.
Tools&Comps is a small Software Development company devoted to Delphi Application development since 1996. Our product TUsers Security Component was first released in 2000.
Save literally thousands of dollars and infinite working hours if you need to add Users and Permissions Management to your Desktop Applications
Works with: Delphi, C++Builder, InterBase, VCL, FireDAC
In this article, I’ll focus on the security capabilities of WCF RIA Services. Security is one of the areas where RIA Services took something that is vitally important to an application and can be very complex when using WCF on its own, and gave us a simple to use approach that covers 80% of the cases with minimal code and confusion, while still covering most of the remaining 20% nicely with the extensibility hooks in RIA Services for security. Like many other aspects of RIA Services, you are insulated from the service level plumbing that needs to happen to secure your communications and calls and just lets you focus on putting the checks and balances in place to make sure that only things that are supposed to happen in your application are allowed.
There are three concerns to focus on with service security: authentication, authorization, and transfer security. Authentication is simply the act of identifying the caller and determining if you believe they are who they say they are. Authorization is determining what you are going to allow them to do once you know who they are. And transfer security has to do with protecting the messages when they hit the wire so that someone cannot view or tamper with the messages enroute. In addition, you have client side security concerns in that you may not want anyone to be able to run your Silverlight application, and when they do, you want to know who they are both so you can make the service calls and to authorize different functionality on the client side. RIA Services has built-in functionality to cover all of these based on proven and standardized protocols and based on the pre-existing infrastructure of .NET for security.
On important thing to understand is that the security model of the service calls from your Silverlight client to your domain services is a separate thing from the security provided by the hosting web application. When your Silverlight application launches initially in the browser, the host web page is first accessed from the site. Then your XAP is downloaded as a file and launched on the client side. After it launches, the application can make RIA Service calls to the back end, and those calls first manifest themselves on the server side as HTTP requests for an svc file to the web server. This process is shown in the figure below.
The security of those calls is determined by the configuration of the hosting web site, which may demand Windows or Forms authentication itself to restrict access to the files. You could choose to rely entirely on site level security, but often you need to have more explicit points of control inside your client and service code where you need to know who the user is and what you are going to allow them to do. This is where RIA Services security steps in and gives you the control you need, both server and client side.
WCF RIA Services security allows you to:
Leverage membership and role providers configured at the host site to do the authentication and authorization look ups (as well as tie into the Profile system if desired)
Use Windows or Username/password credentials out of the box, or other credentials using the extensibility hooks
Declaratively perform authentication and authorization checks on the server side
Have a client side security context for knowing if the user is authenticated, what their identity is, and what roles they are associated with
Perform custom authentication and authorization steps on client or server side through the extensibility hooks
Enforce protection of the messages through SSL
The really quick way to start an application to use WCF RIA Services security is to use the Silverlight Business Application project template. That template sets up all the all the configuration and services stuff that I am going to walk through in this article by default. But I don’t think you should use any capability without understanding what it is doing for you, especially with something as important as security. So I am going to walk through the mechanisms to set it up manually so you understand what you need and what the different pieces do for you.
What are the 3 types of software?
--Computers are managed by software. Software may be divided into three categories: system, utility, and application.
What is the difference between download and install?
--The act of "downloading" a file is distinct from "installing" it. Instructions to utilize the downloaded data to modify your computer are "installing" the file. The file does not alter or be updated if installation is not performed.
What is software used for?
--Software is a collection of instructions, data, or computer programs used to run machines and carry out certain activities. It is the antithesis of hardware which refers to a computer external components. A device running programs, scripts, and applications are collectively referred to as "software" in this context.