mirror of
https://github.com/go-gitea/gitea
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51 lines
1.4 KiB
Go
51 lines
1.4 KiB
Go
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// 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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