sanitizer.go

// Copyright 2022 Paul Greenberg greenpau@outlook.com
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package util

import (
	"net/url"
	"regexp"
)

// SanitizeURL escapes some invalid characters than can allow for Cross Site Scripting
func SanitizeURL(s string) string {
	r := regexp.MustCompile("[&|<|>|\"|']")
	return r.ReplaceAllStringFunc(s, func(st string) string {
		return url.QueryEscape(st)
	})
}