init commit

utils/path.go

@@ -0,0 +1,37 @@
+// Copyright (c) 2019,CAOHONGJU All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package utils
+
+import (
+	"path"
+	"strings"
+)
+
+// CanonicalPath 获取合法的path
+func CanonicalPath(p string) string {
+	p = strings.ToLower(strings.TrimSpace(p))
+
+	if p == "" {
+		return "/"
+	}
+
+	if p[0] != '/' {
+		p = "/" + p
+	}
+
+	np := path.Clean(p)
+	// path.Clean removes trailing slash except for root;
+	// put the trailing slash back if necessary.
+	if p[len(p)-1] == '/' && np != "/" {
+		// Fast path for common case of p being the string we want:
+		if len(p) == len(np)+1 && strings.HasPrefix(p, np) {
+			np = p
+		} else {
+			np += "/"
+		}
+	}
+
+	return np
+}