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1<?php
2/**
3*
4* This file is part of the phpBB Forum Software package.
5*
6* @copyright (c) phpBB Limited <https://www.phpbb.com>
7* @license GNU General Public License, version 2 (GPL-2.0)
8*
9* For full copyright and license information, please see
10* the docs/CREDITS.txt file.
11*
12*/
13
14namespace phpbb\controller;
15
16use Symfony\Component\HttpKernel\Controller\ControllerResolverInterface;
17use Symfony\Component\DependencyInjection\ContainerInterface;
18use Symfony\Component\HttpFoundation\Request;
19
20/**
21* Controller manager class
22*/
23class resolver implements ControllerResolverInterface
24{
25    /**
26    * ContainerInterface object
27    * @var ContainerInterface
28    */
29    protected $container;
30
31    /**
32    * phpbb\template\template object
33    * @var \phpbb\template\template|null
34    */
35    protected $template;
36
37    /**
38    * Request type cast helper object
39    * @var \phpbb\request\type_cast_helper
40    */
41    protected $type_cast_helper;
42
43    /**
44    * phpBB root path
45    * @var string
46    */
47    protected $phpbb_root_path;
48
49    /**
50    * Construct method
51    *
52    * @param ContainerInterface $container ContainerInterface object
53    * @param string $phpbb_root_path Relative path to phpBB root
54    * @param \phpbb\template\template|null $template
55    */
56    public function __construct(ContainerInterface $container, $phpbb_root_path, \phpbb\template\template $template = null)
57    {
58        $this->container = $container;
59        $this->template = $template;
60        $this->type_cast_helper = new \phpbb\request\type_cast_helper();
61        $this->phpbb_root_path = $phpbb_root_path;
62    }
63
64    /**
65    * Load a controller callable
66    *
67    * @param Request $request Symfony Request object
68    * @return callable|false Callable or false
69    * @throws \phpbb\controller\exception
70    */
71    public function getController(Request $request): callable|false
72    {
73        $controller = $request->attributes->get('_controller');
74
75        if (!$controller)
76        {
77            throw new \phpbb\controller\exception('CONTROLLER_NOT_SPECIFIED');
78        }
79
80        // Require a method name along with the service name
81        if (stripos($controller, ':') === false)
82        {
83            throw new \phpbb\controller\exception('CONTROLLER_METHOD_NOT_SPECIFIED');
84        }
85
86        list($service, $method) = explode(':', $controller);
87
88        if (!$this->container->has($service))
89        {
90            throw new \phpbb\controller\exception('CONTROLLER_SERVICE_UNDEFINED', array($service));
91        }
92
93        $controller_object = $this->container->get($service);
94
95        /*
96        * If this is an extension controller, we'll try to automatically set
97        * the style paths for the extension (the ext author can change them
98        * if necessary).
99        */
100        $controller_dir = explode('\\', get_class($controller_object));
101
102        // 0 vendor, 1 extension name, ...
103        if (!is_null($this->template) && isset($controller_dir[1]))
104        {
105            $controller_style_dir = 'ext/' . $controller_dir[0] . '/' . $controller_dir[1] . '/styles';
106
107            if (is_dir($this->phpbb_root_path . $controller_style_dir))
108            {
109                $this->template->set_style(array($controller_style_dir, 'styles'));
110            }
111        }
112
113        return array($controller_object, $method);
114    }
115
116    /**
117    * Dependencies should be specified in the service definition and can be
118    * then accessed in __construct(). Arguments are sent through the URL path
119    * and should match the parameters of the method you are using as your
120    * controller.
121    *
122    * @param Request $request Symfony Request object
123    * @param mixed $controller A callable (controller class, method)
124    * @return array An array of arguments to pass to the controller
125    * @throws \phpbb\controller\exception
126    */
127    public function getArguments(Request $request, $controller)
128    {
129        // At this point, $controller should be a callable
130        if (is_array($controller))
131        {
132            list($object, $method) = $controller;
133            $mirror = new \ReflectionMethod($object, $method);
134        }
135        else if (is_object($controller) && !$controller instanceof \Closure)
136        {
137            $mirror = new \ReflectionObject($controller);
138            $mirror = $mirror->getMethod('__invoke');
139        }
140        else
141        {
142            $mirror = new \ReflectionFunction($controller);
143        }
144
145        $arguments = array();
146        $parameters = $mirror->getParameters();
147        $attributes = $request->attributes->all();
148        foreach ($parameters as $param)
149        {
150            if (array_key_exists($param->name, $attributes))
151            {
152                if (is_string($attributes[$param->name]))
153                {
154                    $value = $attributes[$param->name];
155                    $this->type_cast_helper->set_var($value, $attributes[$param->name], 'string', true, false);
156                    $arguments[] = $value;
157                }
158                else
159                {
160                    $arguments[] = $attributes[$param->name];
161                }
162            }
163            else if ($param->getType() && $param->getType() instanceof $request)
164            {
165                $arguments[] = $request;
166            }
167            else if ($param->isDefaultValueAvailable())
168            {
169                $arguments[] = $param->getDefaultValue();
170            }
171            else
172            {
173                throw new \phpbb\controller\exception('CONTROLLER_ARGUMENT_VALUE_MISSING', array($param->getPosition() + 1, get_class($object) . ':' . $method, $param->name));
174            }
175        }
176
177        return $arguments;
178    }
179}