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https://github.com/chrislusf/seaweedfs
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662915e691
LoadChunkManifest can uncompress buffer move compress.go from storage to operation because of import cycle MakeFile add cross complete command
60 lines
1.3 KiB
Go
60 lines
1.3 KiB
Go
package operation
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import (
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"bytes"
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"compress/flate"
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"compress/gzip"
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"io/ioutil"
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"strings"
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"github.com/chrislusf/seaweedfs/go/glog"
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)
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/*
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* Default more not to gzip since gzip can be done on client side.
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*/
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func IsGzippable(ext, mtype string) bool {
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if strings.HasPrefix(mtype, "text/") {
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return true
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}
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switch ext {
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case ".zip", ".rar", ".gz", ".bz2", ".xz":
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return false
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case ".pdf", ".txt", ".html", ".htm", ".css", ".js", ".json":
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return true
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}
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if strings.HasPrefix(mtype, "application/") {
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if strings.HasSuffix(mtype, "xml") {
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return true
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}
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if strings.HasSuffix(mtype, "script") {
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return true
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}
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}
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return false
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}
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func GzipData(input []byte) ([]byte, error) {
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buf := new(bytes.Buffer)
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w, _ := gzip.NewWriterLevel(buf, flate.BestCompression)
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if _, err := w.Write(input); err != nil {
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glog.V(2).Infoln("error compressing data:", err)
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return nil, err
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}
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if err := w.Close(); err != nil {
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glog.V(2).Infoln("error closing compressed data:", err)
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return nil, err
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}
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return buf.Bytes(), nil
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}
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func UnGzipData(input []byte) ([]byte, error) {
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buf := bytes.NewBuffer(input)
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r, _ := gzip.NewReader(buf)
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defer r.Close()
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output, err := ioutil.ReadAll(r)
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if err != nil {
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glog.V(2).Infoln("error uncompressing data:", err)
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}
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return output, err
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}
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