// decodeMsg is the actual YAMN message decoder. It's output is always a
// pooled file, either in the Inbound or Outbound queue.
func decodeMsg(rawMsg []byte, secret *keymgr.Secring) (err error) {
// At this point, rawMsg should always be messageBytes in length
err = lenCheck(len(rawMsg), messageBytes)
if err != nil {
Error.Println(err)
return
}
d := newDecMessage(rawMsg)
// Extract the top header
header := newDecodeHeader(d.getHeader())
recipientKeyID := header.getRecipientKeyID()
recipientSK, err := secret.GetSK(recipientKeyID)
if err != nil {
Warn.Printf("Failed to ascertain Recipient SK: %s", err)
return
}
header.setRecipientSK(recipientSK)
slotDataBytes, packetVersion, err := header.decode()
if err != nil {
Warn.Printf("Header decode failed: %s", err)
return
}
switch packetVersion {
case 2:
err = decodeV2(d, slotDataBytes)
return
default:
err = fmt.Errorf(
"Cannot decode packet version %d",
packetVersion,
)
return
}
return
}
