mirror of
https://github.com/alibaba/higress.git
synced 2026-02-22 19:51:03 +08:00
96 lines
2.6 KiB
Go
96 lines
2.6 KiB
Go
// Copyright (c) 2022 Alibaba Group Holding Ltd.
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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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package util
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import (
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"bufio"
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"fmt"
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"net/url"
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"os"
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"strconv"
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"strings"
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)
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// StripPrefix removes the given prefix from prefix.
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func StripPrefix(path, prefix string) string {
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pl := len(strings.Split(prefix, "/"))
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pv := strings.Split(path, "/")
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return strings.Join(pv[pl:], "/")
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}
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func SplitSetFlag(flag string) (string, string) {
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items := strings.Split(flag, "=")
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if len(items) != 2 {
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return flag, ""
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}
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return strings.TrimSpace(items[0]), strings.TrimSpace(items[1])
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}
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// IsFilePath reports whether the given URL is a local file path.
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func IsFilePath(path string) bool {
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return strings.Contains(path, "/") || strings.Contains(path, ".")
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}
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// IsHTTPURL checks whether the given URL is a HTTP URL.
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func IsHTTPURL(path string) (bool, error) {
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u, err := url.Parse(path)
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valid := err == nil && u.Host != "" && (u.Scheme == "http" || u.Scheme == "https")
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if strings.HasPrefix(path, "http") && !valid {
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return false, fmt.Errorf("%s starts with http but is not a valid URL: %s", path, err)
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}
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return valid, nil
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}
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// StringBoolMapToSlice creates and returns a slice of all the map keys with true.
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func StringBoolMapToSlice(m map[string]bool) []string {
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s := make([]string, 0, len(m))
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for k, v := range m {
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if v {
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s = append(s, k)
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}
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}
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return s
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}
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// ParseValue parses string into a value
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func ParseValue(valueStr string) any {
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var value any
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if v, err := strconv.Atoi(valueStr); err == nil {
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value = v
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} else if v, err := strconv.ParseFloat(valueStr, 64); err == nil {
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value = v
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} else if v, err := strconv.ParseBool(valueStr); err == nil {
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value = v
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} else {
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value = strings.ReplaceAll(valueStr, "\\,", ",")
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}
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return value
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}
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// WriteFileString write string content to file
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func WriteFileString(fileName string, content string, perm os.FileMode) error {
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file, err := os.OpenFile(fileName, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, perm)
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if err != nil {
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return err
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}
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defer file.Close()
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writer := bufio.NewWriter(file)
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if _, err := writer.WriteString(content); err != nil {
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return err
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}
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writer.Flush()
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return nil
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}
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