firefly-iii/app/Support/Authentication/RemoteUserGuard.php
2021-04-06 18:36:37 +02:00

146 lines
3.9 KiB
PHP

<?php
/**
* RemoteUserGuard.php
* Copyright (c) 2020 james@firefly-iii.org
*
* This file is part of Firefly III (https://github.com/firefly-iii).
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
declare(strict_types=1);
namespace FireflyIII\Support\Authentication;
use FireflyIII\Exceptions\FireflyException;
use FireflyIII\User;
use Illuminate\Contracts\Auth\Authenticatable;
use Illuminate\Contracts\Auth\Guard;
use Illuminate\Contracts\Auth\UserProvider;
use Illuminate\Contracts\Foundation\Application;
use Log;
/**
* Class RemoteUserGuard
*/
class RemoteUserGuard implements Guard
{
protected Application $application;
protected $provider;
protected $user;
/**
* Create a new authentication guard.
*
* @param UserProvider $provider
*
* @return void
*/
// @phpstan-ignore-next-line
public function __construct(UserProvider $provider, Application $app) // @phpstan-ignore-line
{
$this->application = $app;
$this->provider = $provider;
$this->user = null;
}
/**
*
*/
public function authenticate(): void
{
Log::debug(sprintf('Now at %s', __METHOD__));
if (!is_null($this->user)) {
Log::debug('No user found.');
return;
}
// Get the user identifier from $_SERVER or apache filtered headers
$header = config('auth.guard_header', 'REMOTE_USER');
$userID = request()->server($header) ?? apache_request_headers()[$header] ?? null;
if (null === $userID) {
Log::error(sprintf('No user in header "%s".', $header));
throw new FireflyException('The guard header was unexpectedly empty. See the logs.');
}
/** @var User $retrievedUser */
$retrievedUser = $this->provider->retrieveById($userID);
// store email address if present in header and not already set.
$header = config('auth.guard_email');
if (null !== $header) {
$emailAddress = (string)(request()->server($header) ?? null);
$preference = app('preferences')->getForUser($retrievedUser, 'remote_guard_alt_email', null);
if (null !== $emailAddress && null === $preference && $emailAddress !== $userID) {
app('preferences')->setForUser($retrievedUser, 'remote_guard_alt_email', $emailAddress);
}
}
Log::debug(sprintf('Result of getting user from provider: %s', $retrievedUser->email));
$this->user = $retrievedUser;
}
/**
* @inheritDoc
*/
public function check(): bool
{
$result = !is_null($this->user());
return $result;
}
/**
* @inheritDoc
*/
public function guest(): bool
{
return !$this->check();
}
/**
* @inheritDoc
*/
public function id(): ?User
{
return $this->user;
}
/**
* @inheritDoc
*/
public function setUser(Authenticatable $user)
{
$this->user = $user;
}
/**
* @inheritDoc
*/
public function user(): ?User
{
return $this->user;
}
/**
* @inheritDoc
*/
public function validate(array $credentials = [])
{
throw new FireflyException('Did not implement RemoteUserGuard::validate()');
}
}