1 files changed, 61 insertions, 0 deletions
diff --git a/object/store/loose/write_writer_accept.go b/object/store/loose/write_writer_accept.go
new file mode 100644
index 00000000..bf55966a
--- /dev/null
+++ b/object/store/loose/write_writer_accept.go
@@ -0,0 +1,61 @@
+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
+}