server: Switch to custom mux

pkg/mux/path.go

@@ -0,0 +1,28 @@
+package mux
+
+import (
+	"path"
+)
+
+// normalizePath normalizes the provided path.
+// It ensures that there is both a leading and trailing slash.
+func normalizePath(value string) string {
+	value = path.Clean(value)
+	if value != "/" {
+		value = value + "/"
+	}
+	return value
+}
+
+// parentSegment returns the parent segment of the provided path
+// it assumes that normalizePath has been called on value.
+func parentSegment(value string) string {
+	if value == "" || value == "/" {
+		return "/"
+	}
+	parent := path.Dir(value[:len(value)-1])
+	if parent != "/" {
+		parent = parent + "/"
+	}
+	return parent
+}