在CakePHP中的LinkedIn Auth之后登录

Question

I received all of the standard data in the form of $this->data from Linkedin.

What do I save as a password to make $this->Auth->login() work?

Here is my code:

    public function opauth_complete() {
        $conditions = array(
    'User.email' => $this->data['auth']['info']['email']
);
if ($this->User->hasAny($conditions)){
    debug($this->data);
    $this->request->data['User']['username'] =  //what do I put here?
    $this->request->data['User']['password'] =  //what do I put here?
    //login stuff
    if ($this->Auth->login()) {
        $this->redirect('/');
    }
}
else {

     //register stuff
}

   }