first commit of 2.0

laravel/routing/filter.php

@@ -0,0 +1,56 @@
+<?php namespace Laravel\Routing;
+
+class Filter {
+
+	/**
+	 * The loaded route filters.
+	 *
+	 * @var array
+	 */
+	private static $filters = array();
+
+	/**
+	 * Register a set of route filters.
+	 *
+	 * @param  array  $filters
+	 * @return void
+	 */
+	public static function register($filters)
+	{
+		static::$filters = array_merge(static::$filters, $filters);
+	}
+
+	/**
+	 * Clear all of the registered route filters.
+	 *
+	 * @return void
+	 */
+	public static function clear()
+	{
+		static::$filters = array();
+	}
+
+	/**
+	 * Call a set of route filters.
+	 *
+	 * @param  string  $filter
+	 * @param  array   $parameters
+	 * @param  bool    $override
+	 * @return mixed
+	 */
+	public static function call($filters, $parameters = array(), $override = false)
+	{
+		foreach (explode(', ', $filters) as $filter)
+		{
+			if ( ! isset(static::$filters[$filter])) continue;
+
+			$response = call_user_func_array(static::$filters[$filter], $parameters);
+
+			// "Before" filters may override the request cycle. For example, an authentication
+			// filter may redirect a user to a login view if they are not logged in. Because of
+			// this, we will return the first filter response if overriding is enabled.
+			if ( ! is_null($response) and $override) return $response;
+		}
+	}
+
+}