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Sometimes you need to force a user to change their password after x number of days. This article describes how to implement this using a filter, ChangePasswordFilter.

CSRF é o acrônimo para Cross-site request forgery. CSRF é um ataque que forca o usuário a executar ações não desejadas numa aplicação Web na qual ele está autenticado.

CSRF is the acronymn for Cross-site request forgery. It is an attack which forces an end user to execute unwanted actions on a web application in which he/she is currently authenticated.

Starting with the blog tutorial, Yii developers are familiar with the notion of access rules defined in the controller, where the actions are allowed or denied depending on the user's name or role.

Authentication and Authorization is a good tutorial. Among other topics, it describes basic aspects of Yii's RBAC implementation. But however hard I read the tutorial, I couldn't understand how exactly the hierarchy works. I found how to define authorization hierarchy, how business rules are evaluated, how to configure authManager, but almost nothing about how I should build my hierarchy, in what sequence its nodes are checked, when the checking process stops and what would be the checking result.

PHPIDS is a well known project that can be found in php-ids.org.

PHPIDS é conhecido projeto que pode ser visto em php-ids.org.

Yii's by-default directory organization works well enough, but there are several steps one can take that improve the security and serviceability of the system, especially in the context of multiple Yii projects on the same machine (including multiple versions of the same project).