caddy/vendor/golang.org/x/net/http/httpguts/guts.go
Marten Seemann dfbc2e81e3 update to quic-go v0.10.0 (#2288)
quic-go now vendors all of its dependencies, so we don't need to vendor
them here.

Created by running:
gvt delete github.com/lucas-clemente/quic-go
gvt delete github.com/bifurcation/mint
gvt delete github.com/lucas-clemente/aes12
gvt delete github.com/lucas-clemente/fnv128a
gvt delete github.com/lucas-clemente/quic-go-certificates
gvt delete github.com/aead/chacha20
gvt delete github.com/hashicorp/golang-lru
gvt fetch -tag v0.10.0-no-integrationtests github.com/lucas-clemente/quic-go
2018-09-02 15:18:54 -06:00

50 lines
1.4 KiB
Go

// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package httpguts provides functions implementing various details
// of the HTTP specification.
//
// This package is shared by the standard library (which vendors it)
// and x/net/http2. It comes with no API stability promise.
package httpguts
import (
"net/textproto"
"strings"
)
// ValidTrailerHeader reports whether name is a valid header field name to appear
// in trailers.
// See RFC 7230, Section 4.1.2
func ValidTrailerHeader(name string) bool {
name = textproto.CanonicalMIMEHeaderKey(name)
if strings.HasPrefix(name, "If-") || badTrailer[name] {
return false
}
return true
}
var badTrailer = map[string]bool{
"Authorization": true,
"Cache-Control": true,
"Connection": true,
"Content-Encoding": true,
"Content-Length": true,
"Content-Range": true,
"Content-Type": true,
"Expect": true,
"Host": true,
"Keep-Alive": true,
"Max-Forwards": true,
"Pragma": true,
"Proxy-Authenticate": true,
"Proxy-Authorization": true,
"Proxy-Connection": true,
"Range": true,
"Realm": true,
"Te": true,
"Trailer": true,
"Transfer-Encoding": true,
"Www-Authenticate": true,
}