dragonfly/pkg/util/net/urlutils/url_utils.go

65 lines
1.4 KiB
Go

/*
* Copyright 2020 The Dragonfly Authors
*
* 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 urlutils
import (
"net/url"
"d7y.io/dragonfly/v2/pkg/util/stringutils"
)
// FilterURLParam excludes queries in url with filters.
func FilterURLParam(str string, filters []string) string {
if len(filters) == 0 || len(str) == 0 {
return str
}
u, err := url.Parse(str)
if err != nil {
return ""
}
var values = make(url.Values)
for k, v := range u.Query() {
if !stringutils.ContainsFold(filters, k) {
values[k] = v
}
}
u.RawQuery = values.Encode()
return u.String()
}
// IsValidURL returns whether the string url is a valid URL.
func IsValidURL(str string) bool {
u, err := url.Parse(str)
if err != nil {
return false
}
if stringutils.IsBlank(u.Scheme) {
return false
}
if stringutils.IsBlank(u.Host) {
return false
}
return true
}