mirror of
https://github.com/fatedier/frp.git
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103 lines
2.5 KiB
Go
103 lines
2.5 KiB
Go
// Copyright 2023 The frp 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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package http
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import (
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"encoding/base64"
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"net"
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"net/http"
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"strings"
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)
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func OkResponse() *http.Response {
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header := make(http.Header)
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res := &http.Response{
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Status: "OK",
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StatusCode: 200,
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Proto: "HTTP/1.1",
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ProtoMajor: 1,
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ProtoMinor: 1,
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Header: header,
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}
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return res
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}
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func ProxyUnauthorizedResponse() *http.Response {
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header := make(http.Header)
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header.Set("Proxy-Authenticate", `Basic realm="Restricted"`)
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res := &http.Response{
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Status: "Proxy Authentication Required",
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StatusCode: 407,
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Proto: "HTTP/1.1",
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ProtoMajor: 1,
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ProtoMinor: 1,
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Header: header,
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}
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return res
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}
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// canonicalHost strips port from host if present and returns the canonicalized
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// host name.
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func CanonicalHost(host string) (string, error) {
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var err error
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host = strings.ToLower(host)
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if hasPort(host) {
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host, _, err = net.SplitHostPort(host)
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if err != nil {
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return "", err
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}
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}
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// Strip trailing dot from fully qualified domain names.
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host = strings.TrimSuffix(host, ".")
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return host, nil
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}
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// hasPort reports whether host contains a port number. host may be a host
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// name, an IPv4 or an IPv6 address.
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func hasPort(host string) bool {
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colons := strings.Count(host, ":")
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if colons == 0 {
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return false
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}
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if colons == 1 {
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return true
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}
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return host[0] == '[' && strings.Contains(host, "]:")
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}
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func ParseBasicAuth(auth string) (username, password string, ok bool) {
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const prefix = "Basic "
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// Case insensitive prefix match. See Issue 22736.
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if len(auth) < len(prefix) || !strings.EqualFold(auth[:len(prefix)], prefix) {
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return
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}
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c, err := base64.StdEncoding.DecodeString(auth[len(prefix):])
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if err != nil {
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return
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}
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cs := string(c)
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s := strings.IndexByte(cs, ':')
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if s < 0 {
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return
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}
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return cs[:s], cs[s+1:], true
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}
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func BasicAuth(username, passwd string) string {
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auth := username + ":" + passwd
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return "Basic " + base64.StdEncoding.EncodeToString([]byte(auth))
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}
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