55 lines
1.2 KiB
Go
55 lines
1.2 KiB
Go
package warewulfd
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import (
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"io"
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"bytes"
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"net/http"
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"os"
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"strconv"
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"github.com/hpcng/warewulf/internal/pkg/wwlog"
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"github.com/pkg/errors"
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)
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func sendFile(w http.ResponseWriter, filename string, sendto string) error {
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fd, err := os.Open(filename)
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if err != nil {
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w.WriteHeader(http.StatusInternalServerError)
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return err
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}
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defer fd.Close()
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FileHeader := make([]byte, 512)
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_, err = fd.Read(FileHeader)
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if err != nil {
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w.WriteHeader(http.StatusInternalServerError)
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return errors.Wrap(err, "failed to read header")
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}
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FileContentType := http.DetectContentType(FileHeader)
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FileStat, _ := fd.Stat()
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FileSize := strconv.FormatInt(FileStat.Size(), 10)
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_, err = fd.Seek(0, 0)
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if err != nil {
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w.WriteHeader(http.StatusInternalServerError)
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return errors.Wrap(err, "failed to seek")
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}
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var buf bytes.Buffer
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_, err = io.Copy(&buf, fd)
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if err != nil {
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w.WriteHeader(http.StatusInternalServerError)
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return errors.Wrap(err, "failed to copy")
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}
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w.Header().Set("Content-Disposition", "attachment; filename=kernel")
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w.Header().Set("Content-Type", FileContentType)
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w.Header().Set("Content-Length", FileSize)
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_, err = buf.WriteTo(w)
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wwlog.Send("%15s: %s", sendto, filename)
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return err
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}
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