public static byte[] SerializeToBytes(TreeMessage instance)
{
using (MemoryStream ms = new MemoryStream()) {
Serialize(ms, instance);
return(ms.ToArray());
}
}
public static TreeMessage Deserialize(Stream stream)
{
TreeMessage instance = new TreeMessage();
Deserialize(stream, instance);
return(instance);
}
public static Message FromChunk(Chunk chunk, KeyStorage keyStorage)
{
if (chunk == null)
{
return(null);
}
using (MemoryStream ms = new MemoryStream(chunk.Data)) {
byte[] whisper = new byte[7];
if (ms.Read(whisper, 0, whisper.Length) != whisper.Length)
{
throw new InvalidDataException("Header not right length");
}
if (Encoding.ASCII.GetString(whisper) != "Whisper")
{
throw new InvalidDataException("Missing header");
}
MessageHeader header = MessageHeader.Deserialize(ProtocolParser.ReadBytes(ms));
byte[] messageBytes = ProtocolParser.ReadBytes(ms);
Message message;
switch (header.MessageId)
{
case 1:
message = TreeMessage.Deserialize(messageBytes);
break;
case 2:
message = RouteMessage.Deserialize(messageBytes);
break;
case 3:
message = ListMessage.Deserialize(messageBytes);
break;
default:
throw new NotImplementedException();
}
//Verify signature
if (header.Signature != null)
{
foreach (PublicKey key in keyStorage.PublicKeys)
{
if (key.Verify(messageBytes, header.Signature))
{
message.Signature = key;
break;
}
}
}
return(message);
}
}
public static void Main(string[] args, KeyStorage keyStorage)
{
//Usage
if (args.Length != 4)
throw new HelpException ("Missing arguments");
string sourcePath = args [1];
string repoPath = args [2];
string receipientName = args [3];
//Source
if (Directory.Exists (sourcePath) == false)
throw new HelpException ("Source directory not found: " + sourcePath);
//Repo
Repo repo = Repo.Create (repoPath);
//Sender and Recipient keys
PrivateKey senderKey = keyStorage.DefaultKey;
PublicKey recipientKey = keyStorage.GetPublic (receipientName);
//Prepare Route message recording of ChunkID
RouteRepo rr = new RouteRepo (repo);
//Prepare Encryption
EncryptedRepo er = new EncryptedRepo (rr, null);
er.AddKey (recipientKey);
Console.Write ("Generating Tree...");
//Send Tree
ChunkHash tree = TreeChunk.GenerateChunk (sourcePath, er);
//TreeMessage
TreeMessage tm = new TreeMessage (tree, Path.GetDirectoryName (sourcePath));
Chunk tmc = Message.ToChunk (tm, senderKey);
ChunkHash tmch = er.WriteChunk (tmc);
er.StoreMessage ("file", tmch);
//RouteMessage
RouteMessage rm = rr.RouteMessage;
rm.MessageChunkHash = tmch.bytes;
rm.To = receipientName;
//Store unencrypted RouteMessage
Chunk rmChunk = Message.ToChunk (rm);
repo.WriteChunk (rmChunk);
repo.StoreMessage ("route", rmChunk.ChunkHash);
Console.WriteLine ("RouteMessage Stored");
}
public static void Serialize(Stream stream, TreeMessage instance)
{
if (instance.Name == null)
{
throw new ArgumentNullException("Name", "Required by proto specification.");
}
ProtocolParser.WriteKey(stream, new ProtocolBuffers.Key(1, Wire.LengthDelimited));
ProtocolParser.WriteString(stream, instance.Name);
if (instance.TreeChunkHash == null)
{
throw new ArgumentNullException("TreeChunkHash", "Required by proto specification.");
}
ProtocolParser.WriteKey(stream, new ProtocolBuffers.Key(2, Wire.LengthDelimited));
ProtocolParser.WriteBytes(stream, instance.TreeChunkHash);
}
public static byte[] SerializeMessage(Message m)
{
if (m is TreeMessage)
{
return(TreeMessage.SerializeToBytes((TreeMessage)m));
}
if (m is RouteMessage)
{
return(RouteMessage.SerializeToBytes((RouteMessage)m));
}
if (m is ListMessage)
{
return(ListMessage.SerializeToBytes((ListMessage)m));
}
throw new NotImplementedException();
}
