Files
2023-04-19 20:24:34 +02:00

86 lines
1.8 KiB
Go

/*
* Copyright 2017-2019 Kopano and its licensors
*
* 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 provider
import (
"fmt"
"net/http"
"net/url"
"time"
)
var (
farPastExpiryTime = time.Unix(0, 0)
)
func uniqueStrings(s []string) []string {
var res []string
m := make(map[string]bool)
for _, s := range s {
if _, ok := m[s]; ok {
continue
}
m[s] = true
res = append(res, s)
}
return res
}
func getRequestURL(req *http.Request, isTrustedSource bool) *url.URL {
u, _ := url.Parse(req.URL.String())
if isTrustedSource {
// Look at proxy injected values to rewrite URLs if trusted.
for {
prefix := req.Header.Get("X-Forwarded-Prefix")
if prefix != "" {
u.Path = fmt.Sprintf("%s%s", prefix, u.Path)
break
}
replaced := req.Header.Get("X-Replaced-Path")
if replaced != "" {
u.Path = replaced
break
}
break
}
}
return u
}
func addResponseHeaders(header http.Header) {
header.Set("Cache-Control", "no-cache, no-store, must-revalidate")
header.Set("Pragma", "no-cache")
header.Set("X-Content-Type-Options", "nosniff")
header.Set("Referrer-Policy", "origin")
}
func makeArrayFromBoolMap(m map[string]bool) []string {
result := []string{}
for k, v := range m {
if v {
result = append(result, k)
}
}
return result
}