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package loose
import (
"bytes"
"errors"
objectheader "codeberg.org/lindenii/furgit/object/header"
)
// acceptFull validates and accounts raw full-object input.
func (writer *streamWriter) acceptFull(src []byte) error {
if !writer.headerDone {
nul := bytes.IndexByte(src, 0)
if nul >= 0 {
headerChunkLen := nul + 1
writer.headerBuf = append(writer.headerBuf, src[:headerChunkLen]...)
_, size, _, ok := objectheader.Parse(writer.headerBuf)
if !ok {
return errors.New("objectstore/loose: malformed object header")
}
writer.headerDone = true
writer.expectedContentLeft = size
return writer.acceptContent(int64(len(src) - headerChunkLen))
}
writer.headerBuf = append(writer.headerBuf, src...)
return nil
}
return writer.acceptContent(int64(len(src)))
}
// acceptContent validates and accounts content byte counts.
func (writer *streamWriter) acceptContent(n int64) error {
if n > writer.expectedContentLeft {
return errors.New("objectstore/loose: object content exceeds declared size")
}
writer.expectedContentLeft -= n
return nil
}
// writeRawChunk forwards raw bytes to the hash and deflate pipeline.
func (writer *streamWriter) writeRawChunk(src []byte) error {
_, err := writer.hash.Write(src)
if err != nil {
return err
}
_, err = writer.zw.Write(src)
if err != nil {
return err
}
return nil
}
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