Before Login Action

  • brandonhansen

    (@brandonhansen)


    16 years, 7 months ago

    I am working on an plugin for wordpress that will check against an external database to see if the user is a member of that site. If they are, and they don’t have a wp login, then the plugin will need to create a login for them. I have everything working (at least in isolation/unit testing), but what I cannot figure out is how to hook into the login process.

    Basically what I need to happen is when the login form is submitted, I first need wp to call my function in my plugin. My plugin will then either create a new user (if needed), then I will let wp continue with login.

    How can I do that? Is there an action that I am missing?

Viewing 4 replies - 1 through 4 (of 4 total)
  • Eric Mann

    (@ericmann)

    16 years, 7 months ago

    When a user logs in, WordPress checks their credentials against its own database. If things check out, it creates a cookie with their username, and password and then redirects the user to whatever page they’re supposed to go to.

    Right before WP redirects the user, it does the action “wp_login” and passes the $user_login variable.

    You can hook into this action and check to see if this login is also in your external database …

    Thread Starter brandonhansen

    (@brandonhansen)

    16 years, 7 months ago

    Yeah, I know that I can do that, but the problem is that they won’t be a member if this is the first time that they have visited the wp site. The way I am hoping to do it is when they submit the form, then I would be able to check the external db. Then I check the wp db. If they are a member, continue, and let wp log them in. If not, then create a membership for them in wp (with the credentials that are sent from the external db). So is there a way to hook in BEFORE the attempted login not after?

    On second thought, does wp_login happen whether the login was a success or not? If it does, then what I might be able to do is to create the user if there is no user found, and then somehow trigger that login attempt again.

    Thread Starter brandonhansen

    (@brandonhansen)

    16 years, 7 months ago

    I ended up just hooking into the “failed_login” action. That worked perfectly.

    Eric Mann

    (@ericmann)

    16 years, 7 months ago

    In that case, I’d recommend hooking in to WordPress’ authentication system. The action name is ‘wp_authenticate’ and it passes an array (array(&$user_login, &$user_pass)) as the variable.

    But to answer your other question, the wp_login action is called when you have a successful login.

Viewing 4 replies - 1 through 4 (of 4 total)

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