Set MIME types explicitly

Fixes #61
Fixes #70

webdata_test.go

@@ -0,0 +1,42 @@
+/*
+ *    Copyright (c) 2024 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad 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 General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package main
+
+import (
+	"fmt"
+	"io/fs"
+	"path/filepath"
+	"testing"
+)
+
+func TestWebdataTypesCompleteness(t *testing.T) {
+	if err := fs.WalkDir(webdataFS, ".", func(_ string, d fs.DirEntry, err error) error {
+		if err != nil || d.IsDir() {
+			return err
+		}
+		ext := filepath.Ext(d.Name())
+		if _, haveType := webdataTypes[ext]; !haveType {
+			return fmt.Errorf("missing mime type for extension %#v", ext)
+		}
+		return nil
+	}); err != nil {
+		t.Fatal(err)
+	}
+}