x.vweb: fix handling of static URL paths like /sub.folder/a_folder (#…

…20863)

vlib/x/vweb/tests/static_handler_test.v

@@ -96,9 +96,13 @@ fn test_scans_subdirs() {
 
 fn test_index_subdirs() {
 	x := http.get('${localserver}/sub_folder/')!
+	y := http.get('${localserver}/sub.folder/sub_folder')!
 
 	assert x.status() == .ok
 	assert x.body.trim_space() == 'OK'
+
+	assert y.status() == .ok
+	assert y.body.trim_space() == 'OK'
 }
 
 fn test_custom_mime_types() {

vlib/x/vweb/tests/testdata/sub.folder/sub_folder/index.htm

@@ -0,0 +1 @@
+OK

vlib/x/vweb/tests/testdata/sub.folder/sub_folder/sub.txt

@@ -0,0 +1 @@
+sub

vlib/x/vweb/vweb.v

@@ -934,7 +934,9 @@ fn route_matches(url_words []string, route_words []string) ?[]string {
 fn serve_if_static[A, X](app &A, mut user_context X, url urllib.URL, host string) bool {
 	// TODO: handle url parameters properly - for now, ignore them
 	mut asked_path := url.path
-	if !asked_path.contains('.') && !asked_path.ends_with('/') {
+	base_path := os.base(asked_path)
+
+	if !base_path.contains('.') && !asked_path.ends_with('/') {
 		asked_path += '/'
 	}