forked from github/multus-cni
ac21a96804
gomodule is still in progress to migrate for now, hence multus team decide to keep vendor directory to support build without gomodule.
51 lines
1.4 KiB
Go
51 lines
1.4 KiB
Go
// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Package httpguts provides functions implementing various details
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// of the HTTP specification.
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//
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// This package is shared by the standard library (which vendors it)
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// and x/net/http2. It comes with no API stability promise.
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package httpguts
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import (
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"net/textproto"
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"strings"
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)
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// ValidTrailerHeader reports whether name is a valid header field name to appear
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// in trailers.
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// See RFC 7230, Section 4.1.2
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func ValidTrailerHeader(name string) bool {
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name = textproto.CanonicalMIMEHeaderKey(name)
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if strings.HasPrefix(name, "If-") || badTrailer[name] {
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return false
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}
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return true
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}
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var badTrailer = map[string]bool{
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"Authorization": true,
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"Cache-Control": true,
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"Connection": true,
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"Content-Encoding": true,
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"Content-Length": true,
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"Content-Range": true,
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"Content-Type": true,
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"Expect": true,
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"Host": true,
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"Keep-Alive": true,
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"Max-Forwards": true,
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"Pragma": true,
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"Proxy-Authenticate": true,
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"Proxy-Authorization": true,
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"Proxy-Connection": true,
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"Range": true,
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"Realm": true,
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"Te": true,
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"Trailer": true,
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"Transfer-Encoding": true,
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"Www-Authenticate": true,
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}
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