среда, 19 августа 2009 г.

Unlocking and Approving User Accounts

Along with a username, password, and email, each user account has two status fields that dictate whether the user can log into the site: locked out and approved. A user is automatically locked out if they provide invalid credentials a specified number of times within a specified number of minutes (the default settings lock a user out after 5 invalid login attempts within 10 minutes). The approved status is useful in scenarios where some action must transpire before a new user is able to log on to the site. For example, a user might need to first verify their email address or be approved by an administrator before being able to login.

Because a locked out or unapproved user cannot login, it’s only natural to wonder how these statuses can be reset. ASP.NET does not include any built-in functionality or Web controls for managing users’ locked out and approved statuses, in part because these decisions need to be handled on a site-by-site basis. Some sites might automatically approve all new user accounts (the default behavior). Others have an administrator approve new accounts or do not approve users until they visit a link sent to the email address provided when they signed up. Likewise, some sites may lock out users until an administrator resets their status, while other sites send an email to the locked out user with a URL they can visit to unlock their account.

This tutorial shows how to build a web page for administrators to manage users’ locked out and approved statuses. We will also see how to approve new users only after they have verified their email address.

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