Joomla后端登录组件

Question

I'm currently trying to get a custom component working to log a user into the backend given their username and password. I realize the inherent security problems this may present, but I would really like an answer to this problem I've been struggling with. Here is the code in my controller.php:

function execute() {
    $credentials = array( 'username' => $this->username, 
        'password' => $this->password );
    $options = array();
    $options['group'] = 'Public Backend';
    $options['autoregister'] = false;
    $options['action'] = 'core.login.admin';
    $app =& JFactory::getApplication('administrator');
    $result = $app->login($credentials, $options);
    echo $result;
}

All the documentation that I've read says that this should work (even though it is not exactly kosher to perform admin tasks--like logging into the backend--from a non-admin context). Any idea on what I'm not getting?

EDIT: I forgot to mention which Joomla version I'm using: 2.5.14

Answer 1

I think you need to pay attention to the Joomla authentication/login/authorization flow and user flow which are managed via user and authentication plugins. From what you say it sounds like you will still be using the Joomla user table, is that right? So in that case the Joomla user plugin should work.

Assuming that is true you want to make an authentication plugin. This plugin will be checked along with the joomla authentication plugin and any other authentication plugins you may have running (eg remember me/cookie login).

I don't totally understand what you are trying to do (and you haven't said what version of Joomla you are on, which makes a difference in this case), for example do you really want to login to the full back end or do you just want to show some screens the way the insert image plugin does? If on Joomla 3 you might want to look at the Google Summer of Code project for bringing some admin to the front end (called com_services for now). That student also has an http login plugin you could look at. https://github.com/Buddhima/Joomla-HttpLogin-plugin