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<?php
declare(strict_types=1);
namespace authkit2\Http\Controllers;
use Illuminate\Http\Request;
/**
* Methods for handling user authentication operations
*/
class AuthenticationController extends Controller
{
protected $user_flow;
public function __construct(\authkit2\Oidc\Flows\UserFlow $user_flow)
{
$this->user_flow = $user_flow;
}
/**
* Start the login flow for a user
*
* Redirects the user to the SSO service
*
* @return mixed
*/
public function login()
{
// TODO: Pass in 'previous' URL from session so we can redirect back
// if we were redirected to login from a guard?
return redirect($this->user_flow->getRedirectUrl(config('authkit.authn.openid.redirect_uri'), config('authkit.authn.scopes')));
}
/**
* Handle the response from the SSO service
*
* Exchange the code for a token and fetches basic user information.
* Attempts to log the user into this app, and creates them if they
* don't exist. Then redirects the user to the configured post_login url.
*
* @TODO fix type hint on request \/
* @param $request
* @return mixed
*/
public function callback(Request $request)
{
// Get the user class from the Laravel auth config
$user_class = config('auth.providers.users.model');
// Verify the passed in state value
$this->user_flow->validateState($request->state);
// TODO: Check for error response
// Exchange the code for a token
$token = $this->user_flow->exchangeCodeForToken(config('authkit.authn.openid.redirect_uri'), $request->code);
$user_info = $token->getUserInfo();
// Try and use the token to find the local user
$user = \Auth::loginUsingId($token->getUserId());
// If that failed
if ($user === false)
{
// User doesn't exist, create them.
$user = new $user_class();
$id_field = $user->getAuthIdentifierName();
$user->{$id_field} = $token->getUserId();
$user->name = $user_info['name'];
$user->email = $user_info['email'];
if ($user instanceof \authkit2\Models\IAuthkitUser)
{
$user->{$user->getAccessTokenName()} = $token->getAccessToken();
$user->{$user->getRefreshTokenName()} = $token->getRefreshToken();
}
else
{
$user->authkit_access_token = $token->getAccessToken();
$user->authkit_refresh_token = $token->getRefreshToken();
}
$register_event_result = event(new \authkit2\Events\UserRegistration($user));
if (sizeof($register_event_result))
{
foreach ($register_event_result as $result)
{
if ($result instanceof $user_class)
{
$user = $result;
}
}
}
if (!$user->exists)
{
$user->save();
}
\Auth::login($user);
}
else
{
$user->name = $user_info['name'];
$user->email = $user_info['email'];
if ($user instanceof \authkit2\Models\IAuthkitUser)
{
$user->{$user->getAccessTokenName()} = $token->getAccessToken();
$user->{$user->getRefreshTokenName()} = $token->getRefreshToken();
}
else
{
$user->authkit_access_token = $token->getAccessToken();
$user->authkit_refresh_token = $token->getRefreshToken();
}
$user->save();
}
event(new \authkit2\Events\UserLogin($user));
return redirect(url(config('authkit.authn.urls.post_login')));
}
/**
* Explicitly log out of this application and the SSO service
*
* @return mixed
*/
public function logout()
{
event(new \authkit2\Events\UserLogout(\Auth::user()));
// Log out locally
\Auth::logout();
// Redirect to log out remotely as well
return redirect($this->user_flow->getLogoutUrl(url(config('authkit.authn.urls.post_logout'))));
}
}