Added URL parsing

Request.go

@@ -4,17 +4,26 @@ import "git.akyoto.dev/go/router"
 
 // Request is an interface for HTTP requests.
 type Request interface {
+	Host() string
 	Method() string
 	Path() string
+	Scheme() string
 }
 
 // request represents the HTTP request used in the given context.
 type request struct {
+	scheme string
+	host   string
 	method string
 	path   string
 	params []router.Parameter
 }
 
+// Host returns the requested host.
+func (req *request) Host() string {
+	return req.host
+}
+
 // Method returns the request method.
 func (req *request) Method() string {
 	return req.method
@@ -25,6 +34,11 @@ func (req *request) Path() string {
 	return req.path
 }
 
+// Scheme returns either `http`, `https` or an empty string.
+func (req request) Scheme() string {
+	return req.scheme
+}
+
 // addParameter adds a new parameter to the request.
 func (req *request) addParameter(key string, value string) {
 	req.params = append(req.params, router.Parameter{