public async Task HandleAsync()
{
try
{
var nodeKey = request.Keys;
ConnectData connectData = request.GetConnectData(nodeKey.SignPublicKey, NodeData.Instance.NodeKeys.Password, NodeData.Instance.NodeKeys.PrivateKey);
nodeConnection.Node = connectData.Node;
nodeConnection.Node.StartDay = nodeConnection.Node.StartDay.ToUniversalTime();
var nodeJson = ObjectSerializer.ObjectToJson(nodeConnection.Node);
bool isValid = Encryptor.CheckSign(
connectData.LicensorSign,
LicensorClient.Instance.GetSignPublicKey(),
Encoding.UTF8.GetBytes(nodeJson),
NodeData.Instance.NodeKeys.Password);
if (!isValid)
{
NodeWebSocketCommunicationManager.SendResponse(
new ResultNodeResponse(request.RequestId, ErrorCode.AuthorizationProblem, "Wrong sign for node data."), nodeConnection);
}
LicenseVm license = connectData.License;
long currentTime = DateTime.UtcNow.ToUnixTime();
if (!license.IsLicenseValid(currentTime, LicensorClient.Instance.GetSignPublicKey(), NodeData.Instance.NodeKeys.Password, out _))
{
var licenseFromLicensor = await LicensorClient.Instance.GetLicenseAsync(nodeConnection.Node.Id).ConfigureAwait(false);
if (!licenseFromLicensor.IsLicenseValid(currentTime, LicensorClient.Instance.GetSignPublicKey(), NodeData.Instance.NodeKeys.Password, out var errorMessage))
{
var isBlockchainLicenseValid = await BlockchainReadService.IsNodeLicenseValidAsync(nodeConnection.Node.Id, currentTime).ConfigureAwait(false);
if (!isBlockchainLicenseValid)
{
NodeWebSocketCommunicationManager.SendResponse(
new ResultNodeResponse(request.RequestId, ErrorCode.AuthorizationProblem, errorMessage), nodeConnection);
}
}
}
nodeConnection.Uri = new Uri($"wss://{nodeConnection.Node.Domains.FirstOrDefault()}:{nodeConnection.Node.NodesPort}");
ConnectData responseConnectData = new ConnectData
{
Node = NodeSettings.Configs.Node,
LicensorSign = NodeSettings.Configs.LicensorSign.Sign,
License = NodeSettings.Configs.License
};
byte[] encryptedData = Encryptor.SymmetricDataEncrypt(
ObjectSerializer.ObjectToByteArray(responseConnectData),
NodeData.Instance.NodeKeys.SignPrivateKey,
connectData.SymmetricKey,
MessageDataType.Binary,
NodeData.Instance.NodeKeys.Password);
await NodeWebSocketCommunicationManager.SendResponseAsync(new NodesInformationResponse(request.RequestId, encryptedData), nodeConnection).ConfigureAwait(false);
nodeConnection.PublicKey = nodeKey.PublicKey;
nodeConnection.SymmetricKey = connectData.SymmetricKey;
nodeConnection.Node.NodeKey.EncPublicKey = nodeKey.PublicKey;
nodeConnection.PublicKeyExpirationTime = nodeKey.ExpirationTime;
nodeConnection.PublicKeyId = nodeKey.KeyId;
nodeConnection.SignPublicKey = nodeKey.SignPublicKey;
nodesService.CreateOrUpdateNodeInformationAsync(nodeConnection.Node);
connectionsService.AddOrUpdateNodeConnection(nodeConnection.Node.Id, nodeConnection);
await Task.Delay(TimeSpan.FromSeconds(1)).ConfigureAwait(false);
await nodeNoticeService.SendPendingMessagesAsync(nodeConnection.Node.Id).ConfigureAwait(false);
}
catch (Exception ex)
{
Logger.WriteLog(ex);
NodeWebSocketCommunicationManager.SendResponse(new ResultNodeResponse(request.RequestId, ErrorCode.UnknownError, ex.Message), nodeConnection);
}
}
public async void SendConnectRequestAsync(NodeConnection nodeConnection)
{
NodeKeysDto publicKey = null;
try
{
if (nodeConnection.Node == null ||
nodeConnection.Node.NodeKey == null ||
nodeConnection.Node.NodeKey.EncPublicKey.IsNullOrEmpty() ||
nodeConnection.Node.NodeKey.SignPublicKey.IsNullOrEmpty() ||
nodeConnection.Node.NodeKey.ExpiredAt < DateTime.UtcNow.ToUnixTime())
{
publicKey = await GetNodePublicKeyAsync(nodeConnection).ConfigureAwait(false);
}
if (publicKey == null)
{
publicKey = new NodeKeysDto
{
ExpirationTime = nodeConnection.Node.NodeKey.ExpiredAt,
KeyId = nodeConnection.Node.NodeKey.KeyId,
PublicKey = nodeConnection.Node.NodeKey.EncPublicKey,
SignPublicKey = nodeConnection.Node.NodeKey.SignPublicKey
};
}
byte[] symmetricKey;
byte[] encryptedKey = null;
if (nodeConnection.IsEncryptedConnection)
{
symmetricKey = nodeConnection.SymmetricKey;
}
else
{
symmetricKey = Encryptor.GetSymmetricKey(256, RandomExtensions.NextInt64(), uint.MaxValue, NodeData.Instance.NodeKeys.Password);
}
encryptedKey = Encryptor.AsymmetricDataEncrypt(
symmetricKey,
publicKey.PublicKey,
NodeData.Instance.NodeKeys.SignPrivateKey,
NodeData.Instance.NodeKeys.Password);
ConnectData connectData = new ConnectData
{
License = NodeSettings.Configs.License,
LicensorSign = NodeSettings.Configs.LicensorSign.Sign,
Node = NodeSettings.Configs.Node,
SymmetricKey = symmetricKey
};
byte[] encryptedRequestData = Encryptor.SymmetricDataEncrypt(
ObjectSerializer.ObjectToByteArray(connectData),
NodeData.Instance.NodeKeys.SignPrivateKey,
symmetricKey,
MessageDataType.Binary,
NodeData.Instance.NodeKeys.Password);
NodeRequest request = new ConnectNodeRequest(encryptedKey, encryptedRequestData, NodeData.Instance.PublicKeys);
SendRequest(nodeConnection, request);
NodeResponse response = await GetResponseAsync(request, (int)TimeSpan.FromSeconds(30).TotalMilliseconds).ConfigureAwait(false);
if (response is NodesInformationResponse informationResponse)
{
ConnectData responseData = informationResponse.GetConnectData(symmetricKey, publicKey.SignPublicKey, NodeData.Instance.NodeKeys.Password);
responseData.Node.StartDay = responseData.Node.StartDay.ToUniversalTime();
var nodeJson = ObjectSerializer.ObjectToJson(responseData.Node);
var isValid = Encryptor.CheckSign(
responseData.LicensorSign,
LicensorClient.Instance.GetSignPublicKey(),
Encoding.UTF8.GetBytes(nodeJson),
NodeData.Instance.NodeKeys.Password);
if (!isValid)
{
return;
}
LicenseVm license = responseData.License;
long currentTime = DateTime.UtcNow.ToUnixTime();
if (license.ExpiredAt <= currentTime)
{
return;
}
foreach (LicenseSegmentVm segment in license.LicenseSegments)
{
if (segment.StartAt <= currentTime && segment.LicensorSign != null && segment.LicensorSign.Sign != null)
{
var jsonData = ObjectSerializer.ObjectToJson(segment.GetSignObject());
bool isSegmentValid = Encryptor.CheckSign(
segment.LicensorSign.Sign,
LicensorClient.Instance.GetSignPublicKey(),
Encoding.UTF8.GetBytes(jsonData),
NodeData.Instance.NodeKeys.Password);
if (!isSegmentValid)
{
return;
}
}
}
nodeConnection.Node = responseData.Node;
nodeConnection.Uri = new Uri($"wss://{responseData.Node.Domains.FirstOrDefault()}:{responseData.Node.NodesPort}");
nodeConnection.PublicKey = publicKey.PublicKey;
nodeConnection.SymmetricKey = symmetricKey;
nodeConnection.PublicKeyId = publicKey.KeyId;
nodeConnection.PublicKeyExpirationTime = publicKey.ExpirationTime;
nodeConnection.SignPublicKey = publicKey.SignPublicKey;
nodesService.CreateOrUpdateNodeInformationAsync(responseData.Node);
connectionsService.AddOrUpdateNodeConnection(nodeConnection.Node.Id, nodeConnection);
await nodeNoticeService.SendPendingMessagesAsync(nodeConnection.Node.Id).ConfigureAwait(false);
}
else if (response is ResultNodeResponse resultResponse)
{
if (nodeConnection?.Uri != null)
{
Console.WriteLine($"Node URI: {nodeConnection.Uri.AbsoluteUri} Message: {resultResponse.Message}");
}
else
{
Console.WriteLine(resultResponse.Message);
}
}
}
catch (Exception ex)
{
if (publicKey != null)
{
Console.WriteLine($"PublicKey Id:{publicKey.KeyId}, Expired at: {publicKey.ExpirationTime.ToDateTime().ToString()}, Generated at: {publicKey.GenerationTime.ToDateTime().ToString()}, NodeId:{publicKey.NodeId}");
}
Logger.WriteLog(ex);
nodeConnection.NodeWebSocket.Abort();
}
}
