55 lines
1.3 KiB
Go
55 lines
1.3 KiB
Go
/*
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* Copyright 2022 The Dragonfly Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package url
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import (
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"net/url"
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)
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// FilterQueryParams filters the query params in the url.
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func FilterQueryParams(rawURL string, filteredQueryParams []string) (string, error) {
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if len(filteredQueryParams) == 0 {
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return rawURL, nil
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}
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u, err := url.Parse(rawURL)
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if err != nil {
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return "", err
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}
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hidden := make(map[string]struct{})
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for _, filter := range filteredQueryParams {
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hidden[filter] = struct{}{}
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}
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var values = make(url.Values)
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for k, v := range u.Query() {
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if _, ok := hidden[k]; !ok {
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values[k] = v
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}
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}
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u.RawQuery = values.Encode()
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return u.String(), nil
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}
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// IsValid returns whether the string url is a valid URL.
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func IsValid(str string) bool {
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u, err := url.Parse(str)
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return err == nil && u.Scheme != "" && u.Host != ""
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}
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