private TcpMessage HandleUniqueItemQuery(TcpConnectedHost host, TcpMessage message)
{
if (!message.HasType(TcpRequestType.UniqueItemQuery))
{
return(null);
}
if (!IsAuthenticated(host))
{
throw AuthException.NotLoggedIn();
}
var request = new ParamTcpMessage(message);
var response = new ObjectTcpMessage <DbItem>(TcpRequestType.List);
if (request.HasParam("id"))
{
var id = request.GetParamAsNullableInt("id");
if (id != null)
{
var item = _dataService.GetItem(id.Value);
response.Add(item);
return(response);
}
}
return(TcpMessage.Error("Missing or badly formatted query parameters"));
}
private TcpMessage HandleInsertItem(TcpConnectedHost host, TcpMessage message)
{
if (!message.HasType(TcpRequestType.InsertItem))
{
return(null);
}
if (!IsAuthenticated(host))
{
throw AuthException.NotLoggedIn();
}
var request = new ObjectTcpMessage <DbItem>(message);
var response = new ObjectTcpMessage <DbItem>(TcpRequestType.List);
var item = request.Item;
if (item != null)
{
_dataService.Insert(item);
response.Add(item); // Send the item back to report assigned Id
}
return(response);
}
private TcpMessage HandleMultiRelationQuery(TcpConnectedHost host, TcpMessage message)
{
if (!message.HasType(TcpRequestType.MultiRelationQuery))
{
return(null);
}
if (!IsAuthenticated(host))
{
throw AuthException.NotLoggedIn();
}
var request = new ParamTcpMessage(message);
var response = new ObjectTcpMessage <DbRelation>(TcpRequestType.List);
if (request.HasParam("from_id"))
{
var fromId = request.GetParamAsNullableInt("from_id");
var items = _dataService.GetRelations(fromId);
response.Add(items);
return(response);
}
return(TcpMessage.Error("Missing or badly formatted query parameters"));
}
private TcpMessage HandleLoginRequest(TcpConnectedHost host, TcpMessage message)
{
if (!message.HasType("loginbasic"))
{
return(null);
}
var request = new ParamTcpMessage(message);
var username = request.GetParam("username");
var password = request.GetParam("password");
if (!string.IsNullOrEmpty(username) && !string.IsNullOrEmpty(password))
{
var userItem = _dataService.GetItemByRelation(UsersParentId, username);
if (userItem == null)
{
if (!AutoRegisterUsers)
{
return(TcpMessage.Error("User not found. Automatic registering of users is currently disabled."));
}
// Register
userItem = new DbItem(username);
_dataService.Insert(userItem);
_dataService.Insert(new DbRelation(UsersParentId, username, userItem.Id));
var saltItem = new DbItem(HashHelper.CreateSaltString(10));
_dataService.Insert(saltItem);
_dataService.Insert(new DbRelation(userItem.Id, "salt", saltItem.Id));
var passwordItem = new DbItem(HashHelper.GenerateSaltedHash(password, saltItem.Value));
_dataService.Insert(passwordItem);
_dataService.Insert(new DbRelation(userItem.Id, "password", passwordItem.Id));
}
else
{
// Login
var saltItem = _dataService.GetItemByRelation(userItem.Id, "salt");
var passwordItem = _dataService.GetItemByRelation(userItem.Id, "password");
if (saltItem == null || saltItem.Value == null || passwordItem == null || passwordItem.Value == null || !HashHelper.ConfirmPassword(passwordItem.Value, password, saltItem.Value))
{
return(TcpMessage.Error("Login failed. Wrong password."));
}
}
_hostUsers[host] = userItem;
var response = new ObjectTcpMessage <DbItem>(TcpRequestType.Ok);
response.Add(userItem);
return(response);
}
return(TcpMessage.Error("Missing or badly formatted login parameters"));
}
private bool HandleRelationRemoved(TcpMessage request)
{
if (!request.HasType(TcpRequestType.DeleteRelation))
{
return(false);
}
var relation = new ObjectTcpMessage <DbRelation>(request).Item;
if (relation != null)
{
OnRelationRemoved(relation);
}
return(true);
}
private TcpMessage HandleAESKeyExchangeRequest(TcpConnectedHost host, TcpMessage message)
{
if (!message.HasType("aeskey"))
{
return(null);
}
var client = GetClient(host);
client.AESHandler.GenerateKey();
return(new TcpMessage("aeskey")
{
Content = client.AESHandler.KeyAsString
});
}
private bool HandleItemChanged(TcpMessage request)
{
if (!request.HasType(TcpRequestType.List))
{
return(false);
}
var items = new ObjectTcpMessage <ItemChangeEvent>(request).Items;
if (items != null)
{
OnItemsChanged(items.Select(i => i.Id).ToList());
}
return(true);
}
private TcpMessage HandleAESInitializationVectorExchangeRequest(TcpConnectedHost host, TcpMessage message)
{
if (!message.HasType("aesiv"))
{
return(null);
}
var client = GetClient(host);
client.AESHandler.GenerateInitializationVector();
client.EncryptNextMessageSync = false;
return(new TcpMessage("aesiv")
{
Content = client.AESHandler.InitializationVectorAsString
});
}
private TcpMessage HandleRSAKeyExchangeRequest(TcpConnectedHost host, TcpMessage message)
{
if (!message.HasType("rsakey"))
{
return(null);
}
var client = GetClient(host);
client.RSAHandler.PublicKey = message.Content;
client.EncryptNextMessageAsync = false;
return(new TcpMessage("rsakey")
{
Content = _serverCryptographyHandler.PublicKey
});
}
private TcpMessage HandleDeleteItem(TcpConnectedHost host, TcpMessage message)
{
if (!message.HasType(TcpRequestType.DeleteItem))
return null;
if (!IsAuthenticated(host))
throw AuthException.NotLoggedIn();
var request = new ObjectTcpMessage<DbItem>(message);
var item = request.Item;
if (item != null)
{
_dataService.Delete(item);
}
return new TcpMessage(TcpRequestType.Ok);
}
private TcpMessage HandleDeleteItem(TcpConnectedHost host, TcpMessage message)
{
if (!message.HasType(TcpRequestType.DeleteItem))
{
return(null);
}
if (!IsAuthenticated(host))
{
throw AuthException.NotLoggedIn();
}
var request = new ObjectTcpMessage <DbItem>(message);
var item = request.Item;
if (item != null)
{
_dataService.Delete(item);
}
return(new TcpMessage(TcpRequestType.Ok));
}
private TcpMessage HandleLoginRequest(TcpConnectedHost host, TcpMessage message)
{
if (!message.HasType("loginbasic"))
return null;
var request = new ParamTcpMessage(message);
var username = request.GetParam("username");
var password = request.GetParam("password");
if (!string.IsNullOrEmpty(username) && !string.IsNullOrEmpty(password))
{
var userItem = _dataService.GetItemByRelation(UsersParentId, username);
if (userItem == null)
{
if (!AutoRegisterUsers)
return TcpMessage.Error("User not found. Automatic registering of users is currently disabled.");
// Register
userItem = new DbItem(username);
_dataService.Insert(userItem);
_dataService.Insert(new DbRelation(UsersParentId, username, userItem.Id));
var saltItem = new DbItem(HashHelper.CreateSaltString(10));
_dataService.Insert(saltItem);
_dataService.Insert(new DbRelation(userItem.Id, "salt", saltItem.Id));
var passwordItem = new DbItem(HashHelper.GenerateSaltedHash(password, saltItem.Value));
_dataService.Insert(passwordItem);
_dataService.Insert(new DbRelation(userItem.Id, "password", passwordItem.Id));
}
else
{
// Login
var saltItem = _dataService.GetItemByRelation(userItem.Id, "salt");
var passwordItem = _dataService.GetItemByRelation(userItem.Id, "password");
if (saltItem == null || saltItem.Value == null || passwordItem == null || passwordItem.Value == null || !HashHelper.ConfirmPassword(passwordItem.Value, password, saltItem.Value))
return TcpMessage.Error("Login failed. Wrong password.");
}
_hostUsers[host] = userItem;
var response = new ObjectTcpMessage<DbItem>(TcpRequestType.Ok);
response.Add(userItem);
return response;
}
return TcpMessage.Error("Missing or badly formatted login parameters");
}
private TcpMessage HandleAESKeyExchangeRequest(TcpConnectedHost host, TcpMessage message)
{
if (!message.HasType("aeskey"))
return null;
var client = GetClient(host);
client.AESHandler.GenerateKey();
return new TcpMessage("aeskey") { Content = client.AESHandler.KeyAsString };
}
private TcpMessage HandleRSAKeyExchangeRequest(TcpConnectedHost host, TcpMessage message)
{
if (!message.HasType("rsakey"))
return null;
var client = GetClient(host);
client.RSAHandler.PublicKey = message.Content;
client.EncryptNextMessageAsync = false;
return new TcpMessage("rsakey") { Content = _serverCryptographyHandler.PublicKey };
}
private TcpMessage HandleAESInitializationVectorExchangeRequest(TcpConnectedHost host, TcpMessage message)
{
if (!message.HasType("aesiv"))
return null;
var client = GetClient(host);
client.AESHandler.GenerateInitializationVector();
client.EncryptNextMessageSync = false;
return new TcpMessage("aesiv") { Content = client.AESHandler.InitializationVectorAsString };
}
private TcpMessage HandleInsertRelation(TcpConnectedHost host, TcpMessage message)
{
if (!message.HasType(TcpRequestType.InsertRelation))
return null;
if (!IsAuthenticated(host))
throw AuthException.NotLoggedIn();
var request = new ObjectTcpMessage<DbRelation>(message);
var response = new ObjectTcpMessage<DbRelation>(TcpRequestType.List);
var relation = request.Item;
if (relation != null)
{
_dataService.Insert(relation);
response.Add(relation); // Send the item back to report assigned Id
}
return response;
}
private bool HandleRelationRemoved(TcpMessage request)
{
if (!request.HasType(TcpRequestType.DeleteRelation))
return false;
var relation = new ObjectTcpMessage<DbRelation>(request).Item;
if (relation != null)
OnRelationRemoved(relation);
return true;
}
private bool HandleItemChanged(TcpMessage request)
{
if (!request.HasType(TcpRequestType.List))
return false;
var items = new ObjectTcpMessage<ItemChangeEvent>(request).Items;
if (items != null)
OnItemsChanged(items.Select(i => i.Id).ToList());
return true;
}
private TcpMessage HandleUniqueItemQuery(TcpConnectedHost host, TcpMessage message)
{
if (!message.HasType(TcpRequestType.UniqueItemQuery))
return null;
if (!IsAuthenticated(host))
throw AuthException.NotLoggedIn();
var request = new ParamTcpMessage(message);
var response = new ObjectTcpMessage<DbItem>(TcpRequestType.List);
if (request.HasParam("id"))
{
var id = request.GetParamAsNullableInt("id");
if (id != null)
{
var item = _dataService.GetItem(id.Value);
response.Add(item);
return response;
}
}
return TcpMessage.Error("Missing or badly formatted query parameters");
}
private TcpMessage HandleUniqueRelationQuery(TcpConnectedHost host, TcpMessage message)
{
if (!message.HasType(TcpRequestType.UniqueRelationQuery))
return null;
if (!IsAuthenticated(host))
throw AuthException.NotLoggedIn();
var request = new ParamTcpMessage(message);
var response = new ObjectTcpMessage<DbRelation>(TcpRequestType.List);
if (request.HasParam("from_id") && request.HasParam("identifier"))
{
var fromId = request.GetParamAsNullableInt("from_id");
var identifier = request.GetParam("identifier");
var relation = _dataService.GetRelation(fromId, identifier);
response.Add(relation);
return response;
}
return TcpMessage.Error("Missing or badly formatted query parameters");
}