Files
hetty/pkg/proxy/gzip.go
2022-03-23 14:31:27 +01:00

36 lines
708 B
Go

package proxy
import (
"bytes"
"compress/gzip"
"fmt"
"io"
"net/http"
)
func gunzipResponseBody(res *http.Response) error {
if res.Header.Get("Content-Encoding") != "gzip" {
return nil
}
gzipReader, err := gzip.NewReader(res.Body)
if err != nil {
return fmt.Errorf("proxy: could not create gzip reader: %w", err)
}
defer gzipReader.Close()
buf := &bytes.Buffer{}
//nolint:gosec
if _, err := io.Copy(buf, gzipReader); err != nil {
return fmt.Errorf("proxy: could not read gzipped response body: %w", err)
}
res.Body = io.NopCloser(buf)
res.Header.Del("Content-Encoding")
res.Header.Set("Content-Length", fmt.Sprint(buf.Len()))
res.ContentLength = int64(buf.Len())
return nil
}