52 lines
1.5 KiB
Go
52 lines
1.5 KiB
Go
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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package thrift
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import (
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"compress/gzip"
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"io"
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"net/http"
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"strings"
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)
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// gz transparently compresses the HTTP response if the client supports it.
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func gz(handler http.HandlerFunc) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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if !strings.Contains(r.Header.Get("Accept-Encoding"), "gzip") {
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handler(w, r)
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return
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}
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w.Header().Set("Content-Encoding", "gzip")
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gz := gzip.NewWriter(w)
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defer gz.Close()
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gzw := gzipResponseWriter{Writer: gz, ResponseWriter: w}
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handler(gzw, r)
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}
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}
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type gzipResponseWriter struct {
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io.Writer
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http.ResponseWriter
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}
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func (w gzipResponseWriter) Write(b []byte) (int, error) {
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return w.Writer.Write(b)
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}
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