<pedrocorreia.net ⁄>

<Page Refresh Detection Using HttpModule ⁄ >

clicks: 3555 3555 2009-02-24 2009-02-24 goto programacao myNews programacao  Bookmark This Bookmark This

Critical operations done by web pages (e.g. writing stuff to databases, creating users, or deletion of stuff) should be secured from various actions. These actions are, for example, unauthorized access or multiple execution by simply refreshing the page. When I got into the situation (and also the project) that the refreshing issue came up, the project was already way too big (200+ pages, different kinds of users, etc.) to do anything on a per-page basis.

My colleagues already tried to convince our customer to not use F5 or the Refresh button of their browsers. They agreed, but users make mistakes as everyone knows, so from time to time, they do a page refresh. Since our logging is quite extensive, we were able to detect the error that occurred due to the refresh, but it is not satisfying to discuss with the customer over and over again about this issue.

However, I decided to write an HttpModule that covers this topic somehow. So, I read articles about page refreshing detections on MSDN, and this one: Using an HttpModule to detect page refresh, for instance. But they all required additional work on the web pages. In my case, it was totally OK to redirect refreshed pages, so I decided to take the basic idea on refreshing detection and put it in my own module.

este é só um excerto do artigo, para aceder ao artigo completo, clique no link em baixo:
this is just a small excerpt from the article, to access the full article please click in the link below:


Subscribe News RSS  Subscribe News Updates by E-mail

myNews <myNews show="rand" cat="programacao" ⁄>

RouterJs: easy routing for your ajax Web applications new ...

RouterJs is a simple router for your ajax web apps. It's build upon History.js which means that Rout (...)

clicks: 16711 16711 2012-05-14 2012-05-14 goto url (new window) haithembelhaj.g... goto myNews programacao

Backbone computed properties new ...

This gist shows one way to implement read- and write-enabled computed properties on a Backbone Model (...)

clicks: 16539 16539 2012-05-13 2012-05-13 goto url (new window) https://gist.gi... goto myNews programacao

Create Instagram Filters With PHP new ...

In this tutorial, I'll demonstrate how to create vintage (just like Instagram does) photos with PHP (...)

clicks: 16311 16311 2012-05-12 2012-05-12 goto url (new window) net.tutsplus.co... goto myNews programacao

Android Query new ...

Android-Query (AQuery) is a light-weight library for doing asynchronous tasks and manipulating UI el (...)

clicks: 16739 16739 2012-05-12 2012-05-12 goto url (new window) code.google.com... goto myNews programacao

HTML5 jQuery Paint Plugin new ...

Websanova Paint is a HTML5 canvas based jQuery plugin. It allows you to free paint on a canvas area (...)

clicks: 27382 27382 2012-05-12 2012-05-12 goto url (new window) websanova.com/t... goto myNews programacao

Sass vs. LESS vs. Stylus: Preprocessor Shootout new ...

CSS3 preprocessors are languages written for the sole purpose of adding cool, inventive features to (...)

clicks: 15967 15967 2012-05-11 2012-05-11 goto url (new window) net.tutsplus.co... goto myNews programacao

Real-time Applications With Node.js and Socket.IO new ...

Hey everyone! Sorry about the long pause since the last blog post, life has been quite hectic for th (...)

clicks: 16680 16680 2012-05-11 2012-05-11 goto url (new window) codingcookies.c... goto myNews programacao

Gettings to know Backbone.ks new ...

In this series, we're going to learn how to build a fully functional contacts manager using Backbone (...)

clicks: 15485 15485 2012-05-10 2012-05-10 goto url (new window) net.tutsplus.co... goto myNews programacao