summaryrefslogtreecommitdiffstats
path: root/lib/appframework/routing/routeconfig.php
blob: 53ab11bf2f599770d0d8f2bce8a0a97400fb4d24 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
<?php
/**
 * ownCloud - App Framework
 *
 * @author Thomas Müller
 * @copyright 2013 Thomas Müller thomas.mueller@tmit.eu
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library 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 library.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

namespace OC\AppFramework\routing;

use OC\AppFramework\DependencyInjection\DIContainer;

/**
 * Class RouteConfig
 * @package OC\AppFramework\routing
 */
class RouteConfig {
	private $container;
	private $router;
	private $routes;
	private $appName;

	/**
	 * @param \OC\AppFramework\DependencyInjection\DIContainer $container
	 * @param \OC_Router $router
	 * @param string $pathToYml
	 * @internal param $appName
	 */
	public function __construct(DIContainer $container, \OC_Router $router, $routes) {
		$this->routes = $routes;
		$this->container = $container;
		$this->router = $router;
		$this->appName = $container['AppName'];
	}

	/**
	 * The routes and resource will be registered to the \OC_Router
	 */
	public function register() {

		// parse simple
		$this->processSimpleRoutes($this->routes);

		// parse resources
		$this->processResources($this->routes);
	}

	/**
	 * Creates one route base on the give configuration
	 * @param $routes
	 * @throws \UnexpectedValueException
	 */
	private function processSimpleRoutes($routes)
	{
		$simpleRoutes = isset($routes['routes']) ? $routes['routes'] : array();
		foreach ($simpleRoutes as $simpleRoute) {
			$name = $simpleRoute['name'];
			$url = $simpleRoute['url'];
			$verb = isset($simpleRoute['verb']) ? strtoupper($simpleRoute['verb']) : 'GET';

			$split = explode('#', $name, 2);
			if (count($split) != 2) {
				throw new \UnexpectedValueException('Invalid route name');
			}
			$controller = $split[0];
			$action = $split[1];

			$controllerName = $this->buildControllerName($controller);
			$actionName = $this->buildActionName($action);

			// register the route
			$handler = new RouteActionHandler($this->container, $controllerName, $actionName);
			$this->router->create($this->appName.'.'.$controller.'.'.$action, $url)->method($verb)->action($handler);
		}
	}

	/**
	 * For a given name and url restful routes are created:
	 *  - index
	 *  - show
	 *  - new
	 *  - create
	 *  - update
	 *  - destroy
	 *
	 * @param $routes
	 */
	private function processResources($routes)
	{
		// declaration of all restful actions
		$actions = array(
			array('name' => 'index', 'verb' => 'GET', 'on-collection' => true),
			array('name' => 'show', 'verb' => 'GET'),
			array('name' => 'create', 'verb' => 'POST', 'on-collection' => true),
			array('name' => 'update', 'verb' => 'PUT'),
			array('name' => 'destroy', 'verb' => 'DELETE'),
		);

		$resources = isset($routes['resources']) ? $routes['resources'] : array();
		foreach ($resources as $resource => $config) {

			// the url parameter used as id to the resource
			$resourceId = $this->buildResourceId($resource);
			foreach($actions as $action) {
				$url = $config['url'];
				$method = $action['name'];
				$verb = isset($action['verb']) ? strtoupper($action['verb']) : 'GET';
				$collectionAction = isset($action['on-collection']) ? $action['on-collection'] : false;
				if (!$collectionAction) {
					$url = $url . '/' . $resourceId;
				}
				if (isset($action['url-postfix'])) {
					$url = $url . '/' . $action['url-postfix'];
				}

				$controller = $resource;

				$controllerName = $this->buildControllerName($controller);
				$actionName = $this->buildActionName($method);

				$routeName = $this->appName . '.' . strtolower($resource) . '.' . strtolower($method);

				$this->router->create($routeName, $url)->method($verb)->action(
					new RouteActionHandler($this->container, $controllerName, $actionName)
				);
			}
		}
	}

	/**
	 * Based on a given route name the controller name is generated
	 * @param $controller
	 * @return string
	 */
	private function buildControllerName($controller)
	{
		return $this->underScoreToCamelCase(ucfirst($controller)) . 'Controller';
	}

	/**
	 * Based on the action part of the route name the controller method name is generated
	 * @param $action
	 * @return string
	 */
	private function buildActionName($action) {
		return $this->underScoreToCamelCase($action);
	}

	/**
	 * Generates the id used in the url part o the route url
	 * @param $resource
	 * @return string
	 */
	private function buildResourceId($resource) {
		return '{'.$this->underScoreToCamelCase(rtrim($resource, 's')).'Id}';
	}

	/**
	 * Underscored strings are converted to camel case strings
	 * @param $str string
	 * @return string
	 */
	private function underScoreToCamelCase($str) {
		$pattern = "/_[a-z]?/";
		return preg_replace_callback(
			$pattern,
			function ($matches) {
				return strtoupper(ltrim($matches[0], "_"));
			},
			$str);
	}
}