some tests and major cleanup

pkg/server/xsrf_test.go

@@ -0,0 +1,31 @@
+// Copyright (C) 2018 Marius Schellenberger
+
+package server
+
+import (
+	"testing"
+)
+
+func TestXsrf(t *testing.T) {
+	sec := genKey(keySize)
+	if len(sec) != keySize {
+		t.Fatal("len(sec) != keySize")
+	}
+	xsrf := newXsrf(sec)
+	if xsrf == "" {
+		t.Fatal("xsrf is empty")
+	}
+
+	if !checkXsrf(xsrf, sec) {
+		t.Fatal("valid xsrf check failed")
+	}
+
+	if checkXsrf("test", sec) {
+		t.Fatal("invalid xsrf check succeeded")
+	}
+
+	rnd := genKey(keySize)
+	if checkXsrf(xsrf, rnd) {
+		t.Fatal("invalid xsrf check succeeded")
+	}
+}