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内容压缩支持对已压缩内容重新压缩

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GoEdgeLab
2021-10-18 16:50:06 +08:00
parent 91e82dde8e
commit 1a2681be03
9 changed files with 233 additions and 7 deletions
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18
internal/nodes/http_writer.go
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@@ -444,7 +444,8 @@ func (this *HTTPWriter) PrepareCompression(size int64) {
}
// 如果已经有编码则不处理
if len(this.writer.Header().Get("Content-Encoding")) > 0 {
var contentEncoding = this.writer.Header().Get("Content-Encoding")
if len(contentEncoding) > 0 && (!this.compressionConfig.DecompressData || !lists.ContainsString([]string{"gzip", "deflate", "br"}, contentEncoding)) {
return
}
@@ -458,6 +459,12 @@ func (this *HTTPWriter) PrepareCompression(size int64) {
if !ok {
return
}
// 压缩前后如果编码一致，则不处理
if compressionEncoding == contentEncoding {
return
}
this.compressionType = compressionType
// compression writer
@@ -468,6 +475,15 @@ func (this *HTTPWriter) PrepareCompression(size int64) {
return
}
// convert between encodings
if len(contentEncoding) > 0 {
this.compressionWriter, err = compressions.NewEncodingWriter(contentEncoding, this.compressionWriter)
if err != nil {
remotelogs.Error("HTTP_WRITER", err.Error())
return
}
}
// body copy
if this.bodyCopying {
this.compressionBodyBuffer = bytes.NewBuffer([]byte{})