xref: /webtrees/app/Http/RequestHandlers/ModuleAction.php (revision d812eb6b3dd6c33a96d07cd964cb4c3b88cec447) 
1<?php
2
3/**
4 * webtrees: online genealogy
5 * Copyright (C) 2019 webtrees development team
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17declare(strict_types=1);
18
19namespace Fisharebest\Webtrees\Http\RequestHandlers;
20
21use Fisharebest\Webtrees\Auth;
22use Fisharebest\Webtrees\Contracts\UserInterface;
23use Fisharebest\Webtrees\Services\ModuleService;
24use Psr\Http\Message\ResponseInterface;
25use Psr\Http\Message\ServerRequestInterface;
26use Psr\Http\Server\RequestHandlerInterface;
27use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;
28use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
29
30use function method_exists;
31use function strpos;
32use function strtolower;
33
34/**
35 * Controller for module actions.
36 */
37class ModuleAction implements RequestHandlerInterface
38{
39    /** @var ModuleService */
40    private $module_service;
41
42    /** @var UserInterface */
43    private $user;
44
45    /**
46     * ModuleController constructor.
47     *
48     * @param ModuleService $module_service
49     * @param UserInterface $user
50     */
51    public function __construct(ModuleService $module_service, UserInterface $user)
52    {
53        $this->module_service = $module_service;
54        $this->user           = $user;
55    }
56
57    /**
58     * Perform an HTTP action for one of the modules.
59     *
60     * @param ServerRequestInterface $request
61     *
62     * @return ResponseInterface
63     */
64    public function handle(ServerRequestInterface $request): ResponseInterface
65    {
66        $module_name = $request->getAttribute('module');
67        $action      = $request->getAttribute('action');
68
69        // Check that the module is enabled.
70        // The module itself will need to check any tree-level access,
71        // which may be different for each component (tab, menu, etc.) of the module.
72        $module = $this->module_service->findByName($module_name);
73
74        if ($module === null) {
75            throw new NotFoundHttpException('Module ' . $module_name . ' does not exist');
76        }
77
78        // We'll call a function such as Module::getFooBarAction()
79        $verb   = strtolower($request->getMethod());
80        $method = $verb . $action . 'Action';
81
82        // Actions with "Admin" in the name are for administrators only.
83        if (strpos($action, 'Admin') !== false && !Auth::isAdmin($this->user)) {
84            throw new AccessDeniedHttpException('Admin only action');
85        }
86
87        if (!method_exists($module, $method)) {
88            throw new NotFoundHttpException('Method ' . $method . '() not found in ' . $module_name);
89        }
90
91        return $module->$method($request);
92    }
93}
94