fix: switch to using the originally stored message since we need everything to do message verification

protocol/storage_location.go

@@ -18,7 +18,6 @@ import (
 var _ base.IncomingMessageTyped = (*StorageLocation)(nil)
 
 type StorageLocation struct {
-	raw       []byte
 	hash      *encoding.Multihash
 	kind      int
 	expiry    int64
@@ -35,51 +34,48 @@ func NewStorageLocation() *StorageLocation {
 }
 
 func (s *StorageLocation) DecodeMessage(dec *msgpack.Decoder) error {
-	data, err := dec.DecodeRaw()
-
-	if err != nil {
-		return err
-	}
-
-	s.raw = data
-
+	// nop, we use the incoming message -> original already stored
 	return nil
 }
 func (s *StorageLocation) HandleMessage(node interfaces.Node, peer net.Peer, verifyId bool) error {
-	hash := encoding.NewMultihash(s.raw[1:34]) // Replace NewMultihash with appropriate function
+	msg := s.IncomingMessage().Original()
+
+	hash := encoding.NewMultihash(msg[1:34]) // Replace NewMultihash with appropriate function
 	fmt.Println("Hash:", hash)
 
-	typeOfData := s.raw[34]
+	typeOfData := msg[34]
 
-	expiry := utils.DecodeEndian(s.raw[35:39])
+	expiry := utils.DecodeEndian(msg[35:39])
 
-	partCount := s.raw[39]
+	partCount := msg[39]
 
 	parts := []string{}
 	cursor := 40
 	for i := 0; i < int(partCount); i++ {
-		length := utils.DecodeEndian(s.raw[cursor : cursor+2])
+		length := utils.DecodeEndian(msg[cursor : cursor+2])
 		cursor += 2
-		part := string(s.raw[cursor : cursor+int(length)])
+		part := string(msg[cursor : cursor+int(length)])
 		parts = append(parts, part)
 		cursor += int(length)
 	}
 
-	publicKey := s.raw[cursor : cursor+33]
-	signature := s.raw[cursor+33:]
+	cursor++
+
+	publicKey := msg[cursor : cursor+33]
+	signature := msg[cursor+33:]
 
 	if types.HashType(publicKey[0]) != types.HashTypeEd25519 { // Replace CID_HASH_TYPES_ED25519 with actual constant
 		return fmt.Errorf("Unsupported public key type %d", publicKey[0])
 	}
 
-	if !ed25519.Verify(publicKey[1:], s.raw[:cursor], signature) {
+	if !ed25519.Verify(publicKey[1:], msg[:cursor], signature) {
 		return fmt.Errorf("Signature verification failed")
 	}
 
 	nodeId := encoding.NewNodeId(publicKey)
 
 	// Assuming `node` is an instance of your NodeImpl structure
-	err := node.AddStorageLocation(hash, nodeId, storage.NewStorageLocation(int(typeOfData), parts, int64(expiry)), s.raw, node.Config()) // Implement AddStorageLocation
+	err := node.AddStorageLocation(hash, nodeId, storage.NewStorageLocation(int(typeOfData), parts, int64(expiry)), msg, node.Config()) // Implement AddStorageLocation
 
 	if err != nil {
 		return fmt.Errorf("Failed to add storage location: %s", err)
@@ -110,7 +106,7 @@ func (s *StorageLocation) HandleMessage(node interfaces.Node, peer net.Peer, ver
 		}
 		if peerVal, ok := node.Services().P2P().Peers().Get(peerIdStr); ok {
 			foundPeer := peerVal.(net.Peer)
-			err := foundPeer.SendMessage(s.raw)
+			err := foundPeer.SendMessage(msg)
 			if err != nil {
 				node.Logger().Error("Failed to send message", zap.Error(err))
 				continue