/
content.go
46 lines (36 loc) · 927 Bytes
/
content.go
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// Copyright (c) 2018 Timo Savola. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package web
import (
"compress/gzip"
"context"
"io"
"net/http"
)
func mustDecodeContent(ctx context.Context, wr *requestResponseWriter, s *webserver) io.ReadCloser {
var encoding string
switch fields := wr.request.Header["Content-Encoding"]; len(fields) {
case 0:
// identity
case 1:
encoding = fields[0]
default:
goto bad
}
switch encoding {
case "", "identity":
return wr.request.Body
case "gzip":
decoder, err := gzip.NewReader(wr.request.Body)
if err != nil {
respondContentDecodeError(ctx, wr, s, err)
panic(responded)
}
return http.MaxBytesReader(wr.response, decoder, wr.request.ContentLength)
}
bad:
wr.response.Header().Set("Accept-Encoding", "gzip")
respondUnsupportedEncoding(ctx, wr, s)
panic(responded)
}