45 lines
970 B
Go
45 lines
970 B
Go
/*
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* SPDX-FileCopyrightText: 2023 jordi fita mas <jfita@peritasoft.com>
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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package http
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import (
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"net"
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"net/http"
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"path"
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"strings"
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)
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func RemoteAddr(r *http.Request) string {
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address, _, _ := net.SplitHostPort(r.RemoteAddr)
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if address != "localhost" && address != "127.0.0.1" && address != "::1" {
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return address
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}
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forwarded := r.Header.Get("X-Forwarded-For")
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if forwarded == "" {
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return address
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}
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ips := strings.Split(forwarded, ", ")
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forwarded = ips[0]
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if forwarded == "" {
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return address
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}
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return forwarded
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}
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func ShiftPath(p string) (head, tail string) {
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p = path.Clean("/" + p)
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if i := strings.IndexByte(p[1:], '/') + 1; i <= 0 {
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return p[1:], "/"
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} else {
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return p[1:i], p[i:]
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}
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}
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func MethodNotAllowed(w http.ResponseWriter, _ *http.Request, allowed ...string) {
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w.Header().Set("Allow", strings.Join(allowed, ", "))
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http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
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}
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