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@@ -0,0 +1,192 @@
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+<?php
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+
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+class Router
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+{
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+ /**
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+ * @var array
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+ */
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+ private static $routes = array();
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+
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+
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+ /**
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+ * @var array
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+ */
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+ private static $errorPages = array(
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+ 404 => 'include/php/pages/404.php',
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+ 403 => 'include/php/pages/not-allowed.php'
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+ );
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+
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+
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+ private function __construct()
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+ {
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+ }
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+
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+ private function __clone()
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+ {
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+ }
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+
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+
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+ /**
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+ * @param string|array $methods
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+ * @param string $pattern
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+ * @param callable|array|string $routeConfig
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+ * @param array $permission
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+ */
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+ public static function addRoute($methods, $pattern, $routeConfig, $permission = null)
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+ {
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+ if(!is_array($methods)){
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+ $methods = array($methods);
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+ }
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+
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+ $config = array(
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+ 'pattern' => $pattern,
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+ 'config' => $routeConfig,
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+ 'permission' => $permission,
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+ );
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+
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+ foreach($methods as $method){
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+ $method = strtoupper($method);
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+
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+ if(!isset(static::$routes[$method])){
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+ static::$routes[$method] = array();
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+ }
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+
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+ static::$routes[$method][] = $config;
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+ }
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+ }
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+
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+
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+ /**
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+ * @param string $pattern
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+ * @param callable|array|string $routeConfig
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+ * @param array $permission
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+ */
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+ public static function addGet($pattern, $routeConfig, $permission = null)
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+ {
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+ static::addRoute('GET', $pattern, $routeConfig, $permission);
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+ }
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+
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+
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+ /**
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+ * @param string $pattern
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+ * @param callable|array|string $routeConfig
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+ * @param array $permission
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+ */
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+ public static function addPost($pattern, $routeConfig, $permission = null)
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+ {
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+ static::addRoute('POST', $pattern, $routeConfig, $permission);
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+ }
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+
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+
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+ /**
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+ * @param string $pattern
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+ * @param callable|array|string $routeConfig
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+ * @param array $permission
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+ */
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+ public static function addMixed($pattern, $routeConfig, $permission = null)
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+ {
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+ static::addRoute(array('GET', 'POST'), $pattern, $routeConfig, $permission);
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+ }
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+
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+
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+ /**
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+ * @param string $url
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+ * @param string $method
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+ *
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+ * @return string
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+ */
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+ public static function execute($url, $method = 'GET')
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+ {
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+ $method = strtoupper($method);
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+
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+ if(!in_array($method, array('GET', 'POST')) && !isset(self::$routes[$method])){
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+ return 'Unsupported HTTP method.';
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+ }
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+
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+ foreach(self::$routes[$method] as $route){
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+ if(rtrim($route['pattern'], '/') === rtrim($url, '/')){
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+ if(!is_null($route['permission'])){
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+ if(!Auth::isLoggedIn() || !Auth::hasPermission($route['permission'])){
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+ return static::loadAndBufferOutput(static::$errorPages[403]);
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+ }
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+ }
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+
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+ return static::resolveRouteConfig($route['config']);
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+ }
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+ }
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+
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+ return static::loadAndBufferOutput(static::$errorPages[404]);
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+ }
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+
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+ /**
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+ * @return string
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+ */
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+ public static function executeCurrentRequest()
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+ {
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+ return static::execute(
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+ static::getCurrentUrlPath(),
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+ isset($_SERVER['REQUEST_METHOD']) ? $_SERVER['REQUEST_METHOD'] : 'GET'
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+ );
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+ }
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+
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+
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+ /**
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+ * @param bool $removeGetParameters
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+ *
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+ * @return string
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+ */
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+ public static function getCurrentUrlPath($removeGetParameters = true)
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+ {
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+ $baseUrl = parse_url(FRONTEND_BASE_PATH);
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+ $basePath = isset($baseUrl['path']) ? rtrim($baseUrl['path'], '/') : '';
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+
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+ $url = $_SERVER['REQUEST_URI'];
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+
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+ if($removeGetParameters){
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+ $url = preg_replace('/\?.*/', '', $url); // Trim GET Parameters
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+ }
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+
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+ // Trim all leading slashes
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+ $url = rtrim($url, '/');
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+
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+ if(!empty($basePath) && ($basePathPos = strpos($url, $basePath)) === 0){
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+ $url = substr($url, strlen($basePath));
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+ }
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+
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+ return $url;
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+ }
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+
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+
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+ /**
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+ * @param array $config
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+ *
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+ * @return string
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+ */
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+ public static function resolveRouteConfig($config)
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+ {
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+ if(is_string($config)){
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+ if(file_exists($config)){
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+ return static::loadAndBufferOutput($config);
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+ }
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+ }
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+
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+ return static::loadAndBufferOutput(static::$errorPages[404]);
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+ }
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+
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+ /**
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+ * @param string $file
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+ * @param array $variables
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+ *
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+ * @return string
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+ */
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+ public static function loadAndBufferOutput($file, $variables = array())
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+ {
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+ ob_start();
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+
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+ extract($variables);
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+
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+ require $file;
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+
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+ return ob_get_clean();
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+ }
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+}
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ohartl