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Zend Framework: Intercepting Filters Component Proposal

Table of Contents

1. Overview

Zend Framework lacks of intercepting filters that should be executed before a specified controllers or actions in order to make some validations, for example, check whether user is authenticated if not then redirect to a login page, the code can look something like this

For instance, we have PagesController that has four actions: viewAction(), addAction(), editAction(), removeAction(), the last three actions can be performed by autenticates users only, so we must check. Sure, we can put this logic to the action method or write Authenticated_Controller_Action, but what if we have to make some other validations.

Zend Framework has a plugin mechanism that is not documented now, I tried to make a plugin that extends Zend_Controller_Plugin_Abstract but it lacks of interaction with controllers and action, besides it can't stop the routing process.

If you have any ideas, please comment or e-mail me.

2. References

• Core J2EE Patterns - Intercepting Filter
• SitePoint threads

3. Component Requirements, Constraints, and Acceptance Criteria

4. Dependencies on Other Framework Components

5. Theory of Operation

6. Milestones / Tasks

7. Class Index

8. Use Cases

9. Class Skeletons