public function handleLoginCallback($socialDriver)
{
$driver = $this->validateDriver($socialDriver);
// Get user details from social driver
$socialUser = $this->socialite->driver($driver)->user();
$socialId = $socialUser->getId();
// Get any attached social accounts or users
$socialAccount = $this->socialAccount->where('driver_id', '=', $socialId)->first();
$user = $this->userRepo->getByEmail($socialUser->getEmail());
$isLoggedIn = auth()->check();
$currentUser = user();
// When a user is not logged in and a matching SocialAccount exists,
// Simply log the user into the application.
if (!$isLoggedIn && $socialAccount !== null) {
return $this->logUserIn($socialAccount->user);
}
// When a user is logged in but the social account does not exist,
// Create the social account and attach it to the user & redirect to the profile page.
if ($isLoggedIn && $socialAccount === null) {
$this->fillSocialAccount($socialDriver, $socialUser);
$currentUser->socialAccounts()->save($this->socialAccount);
session()->flash('success', title_case($socialDriver) . ' account was successfully attached to your profile.');
return redirect($currentUser->getEditUrl());
}
// When a user is logged in and the social account exists and is already linked to the current user.
if ($isLoggedIn && $socialAccount !== null && $socialAccount->user->id === $currentUser->id) {
session()->flash('error', 'This ' . title_case($socialDriver) . ' account is already attached to your profile.');
return redirect($currentUser->getEditUrl());
}
// When a user is logged in, A social account exists but the users do not match.
// Change the user that the social account is assigned to.
if ($isLoggedIn && $socialAccount !== null && $socialAccount->user->id != $currentUser->id) {
session()->flash('success', 'This ' . title_case($socialDriver) . ' account is already used by another user.');
return redirect($currentUser->getEditUrl());
}
// Otherwise let the user know this social account is not used by anyone.
$message = 'This ' . $socialDriver . ' account is not linked to any users. Please attach it in your profile settings';
if (setting('registration-enabled')) {
$message .= ' or, If you do not yet have an account, You can register an account using the ' . $socialDriver . ' option';
}
throw new SocialSignInException($message . '.', '/login');
}
