public IActionResult Call([FromBody] BuildCallContractTransactionRequest request)
{
if (!this.ModelState.IsValid)
{
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
BuildCallContractTransactionResponse response = this.smartContractTransactionService.BuildCallTx(request);
if (!response.Success)
{
return(BadRequest(Json(response)));
}
Transaction transaction = this.network.CreateTransaction(response.Hex);
this.walletManager.ProcessTransaction(transaction, null, null, false);
this.broadcasterManager.BroadcastTransactionAsync(transaction).GetAwaiter().GetResult();
return(Json(response));
}
public IActionResult ListAccounts([FromQuery] ListAccountsModel request)
{
Guard.NotNull(request, nameof(request));
// checks the request is valid
if (!this.ModelState.IsValid)
{
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
try
{
IEnumerable <HdAccount> result = this.walletManager.GetAccounts(request.WalletName);
return(this.Json(result.Select(a => a.Name)));
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
public IActionResult GetUnusedAddress([FromQuery] GetUnusedAddressModel request)
{
Guard.NotNull(request, nameof(request));
// checks the request is valid
if (!this.ModelState.IsValid)
{
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
try
{
HdAddress result = this.walletManager.GetUnusedAddress(new WalletAccountReference(request.WalletName, request.AccountName));
return(this.Json(result.Address));
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
private IActionResult VoteAddKickFedMember(HexPubKeyModel request, bool addMember)
{
Guard.NotNull(request, nameof(request));
if (!this.ModelState.IsValid)
{
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
if (!this.fedManager.IsFederationMember)
{
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, "Only federation members can vote", string.Empty));
}
try
{
var key = new PubKey(request.PubKeyHex);
if (IsMultisigMember(this.network, key))
{
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, "Multisig members can't be voted on", string.Empty));
}
IFederationMember federationMember = new FederationMember(key);
byte[] fedMemberBytes = (this.network.Consensus.ConsensusFactory as PoAConsensusFactory).SerializeFederationMember(federationMember);
this.votingManager.ScheduleVote(new VotingData()
{
Key = addMember ? VoteKey.AddFederationMember : VoteKey.KickFederationMember,
Data = fedMemberBytes
});
return(this.Ok());
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, "There was a problem executing a command.", e.ToString()));
}
}
public IActionResult GetReceipt([FromQuery] string txHash)
{
this.logger.LogTrace("(){0}:{1}", nameof(txHash), txHash);
if (!this.ModelState.IsValid)
{
this.logger.LogTrace("(-)[MODELSTATE_INVALID]");
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
uint256 txHashNum = new uint256(txHash);
SmartContractReceipt receipt = this.receiptStorage.GetReceipt(txHashNum);
if (receipt == null)
{
this.logger.LogTrace("(-)[RECEIPT_NOT_FOUND]");
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest,
"Receipt not found.",
"Could not find a stored transaction for this hash."));
}
return(Json(ReceiptModel.FromSmartContractReceipt(receipt, this.network)));
}
private IActionResult VoteAddKickFedMember(CollateralFederationMemberModel request, bool addMember)
{
Guard.NotNull(request, nameof(request));
// TODO remove this line when multisig recreation is implemented.
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, "Disabled in current version.", string.Empty));
if (!this.ModelState.IsValid)
{
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
if (!this.fedManager.IsFederationMember)
{
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, "Only federation members can vote", string.Empty));
}
try
{
var key = new PubKey(request.PubKeyHex);
IFederationMember federationMember = new CollateralFederationMember(key, new Money(request.CollateralAmountSatoshis), request.CollateralMainchainAddress);
byte[] fedMemberBytes = (this.network.Consensus.ConsensusFactory as PoAConsensusFactory).SerializeFederationMember(federationMember);
this.votingManager.ScheduleVote(new VotingData()
{
Key = addMember ? VoteKey.AddFederationMember : VoteKey.KickFederationMember,
Data = fedMemberBytes
});
return(this.Ok());
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, "There was a problem executing a command.", e.ToString()));
}
}
public IActionResult EstimateOfflineColdStakingSetupFee([FromBody] SetupOfflineColdStakingRequest request)
{
Guard.NotNull(request, nameof(request));
// Checks the request is valid.
if (!this.ModelState.IsValid)
{
this.logger.LogTrace("(-)[MODEL_STATE_INVALID]");
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
try
{
Money amount = Money.Parse(request.Amount);
Money estimatedFee = this.ColdStakingManager.EstimateSetupTransactionFee(
this.walletTransactionHandler,
request.ColdWalletAddress,
request.HotWalletAddress,
request.WalletName,
request.WalletAccount,
null,
amount,
request.SubtractFeeFromAmount,
true,
request.SegwitChangeAddress,
request.SplitCount);
this.logger.LogTrace("(-):'{0}'", estimatedFee);
return(this.Json(estimatedFee));
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
this.logger.LogTrace("(-)[ERROR]");
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
public IActionResult CreateColdStakingAccount([FromBody] CreateColdStakingAccountRequest request)
{
Guard.NotNull(request, nameof(request));
// Checks that the request is valid.
if (!this.ModelState.IsValid)
{
this.logger.LogTrace("(-)[MODEL_STATE_INVALID]");
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
try
{
ExtPubKey extPubKey = null;
try
{
extPubKey = ExtPubKey.Parse(request.ExtPubKey);
}
catch
{
}
var model = new CreateColdStakingAccountResponse
{
AccountName = this.ColdStakingManager.GetOrCreateColdStakingAccount(request.WalletName, request.IsColdWalletAccount, request.WalletPassword, extPubKey).Name
};
this.logger.LogTrace("(-):'{0}'", model);
return(this.Json(model));
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
this.logger.LogTrace("(-)[ERROR]");
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
public async Task <IActionResult> BuildAndSendCallSmartContractTransactionAsync([FromBody] BuildCallContractTransactionRequest request)
{
if (!this.ModelState.IsValid)
{
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
// Ignore this check if the node is running dev mode.
if (this.nodeSettings.DevMode == null && !this.connectionManager.ConnectedPeers.Any())
{
this.logger.LogTrace("(-)[NO_CONNECTED_PEERS]");
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.Forbidden, "Can't send transaction as the node requires at least one connection.", string.Empty));
}
BuildCallContractTransactionResponse response = this.smartContractTransactionService.BuildCallTx(request);
if (!response.Success)
{
return(this.Json(response));
}
Transaction transaction = this.network.CreateTransaction(response.Hex);
await this.broadcasterManager.BroadcastTransactionAsync(transaction);
// Check if transaction was actually added to a mempool.
TransactionBroadcastEntry transactionBroadCastEntry = this.broadcasterManager.GetTransaction(transaction.GetHash());
if (transactionBroadCastEntry?.TransactionBroadcastState == Features.Wallet.Broadcasting.TransactionBroadcastState.CantBroadcast)
{
this.logger.LogError("Exception occurred: {0}", transactionBroadCastEntry.ErrorMessage);
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, transactionBroadCastEntry.ErrorMessage, "Transaction Exception"));
}
response.Message = $"Your CALL method {request.MethodName} transaction was successfully built and sent. Check the receipt using the transaction ID once it has been included in a new block.";
return(this.Json(response));
}
public IActionResult GetXServerStats()
{
if (!this.ModelState.IsValid)
{
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
try
{
var serverStats = new GetXServerStatsResult()
{
Connected = this.xServerManager.ConnectedSeeds.Count,
Nodes = this.xServerManager.ConnectedSeeds
};
return(this.Json(serverStats));
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
public IActionResult GetBalance([FromQuery] WalletBalanceRequest request)
{
Guard.NotNull(request, nameof(request));
// checks the request is valid
if (!this.ModelState.IsValid)
{
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
try
{
var model = new WalletBalanceModel();
IEnumerable <AccountBalance> balances = this.walletManager.GetBalances(request.WalletName, request.AccountName);
foreach (AccountBalance balance in balances)
{
HdAccount account = balance.Account;
model.AccountsBalances.Add(new AccountBalanceModel
{
CoinType = this.coinType,
Name = account.Name,
HdPath = account.HdPath,
AmountConfirmed = balance.AmountConfirmed,
AmountUnconfirmed = balance.AmountUnconfirmed
});
}
return(this.Json(model));
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
public IActionResult GetColdStakingAddress([FromQuery] GetColdStakingAddressRequest request)
{
Guard.NotNull(request, nameof(request));
// Checks that the request is valid.
if (!this.ModelState.IsValid)
{
this.logger.LogTrace("(-)[MODEL_STATE_INVALID]");
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
try
{
var address =
this.ColdStakingManager.GetFirstUnusedColdStakingAddress(request.WalletName,
request.IsColdWalletAddress);
var model = new GetColdStakingAddressResponse
{
Address = request.Segwit ? address?.Bech32Address : address?.Address
};
if (model.Address == null)
{
throw new WalletException("The cold staking account does not exist.");
}
this.logger.LogTrace("(-):'{0}'", model);
return(Json(model));
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
this.logger.LogTrace("(-)[ERROR]");
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
public IActionResult ColdStakingWithdrawal([FromBody] ColdStakingWithdrawalRequest request)
{
Guard.NotNull(request, nameof(request));
this.logger.LogTrace("({0}:'{1}')", nameof(request), request);
// Checks the request is valid.
if (!this.ModelState.IsValid)
{
this.logger.LogTrace("(-)[MODEL_STATE_INVALID]");
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
try
{
Money amount = Money.Parse(request.Amount);
Money feeAmount = Money.Parse(request.Fees);
Transaction transaction = this.ColdStakingManager.GetColdStakingWithdrawalTransaction(this.walletTransactionHandler,
request.ReceivingAddress, request.WalletName, request.WalletPassword, amount, feeAmount);
var model = new ColdStakingWithdrawalResponse
{
TransactionHex = transaction.ToHex()
};
this.logger.LogTrace("(-):'{0}'", model);
return(this.Json(model));
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
this.logger.LogTrace("(-)[ERROR]");
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
public async Task <IActionResult> GetTransactionAsync(string id)
{
if (!this.ModelState.IsValid)
{
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
if (string.IsNullOrWhiteSpace(id))
{
throw new ArgumentNullException("id", "id must be specified");
}
try
{
Transaction trx = this.blockRepository.GetTransactionById(new uint256(id));
var model = new TransactionVerboseModel(trx, this.network);
return(Json(model));
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
public IActionResult GetStorage([FromQuery] GetStorageRequest request)
{
if (!this.ModelState.IsValid)
{
this.logger.LogTrace("(-)[MODELSTATE_INVALID]");
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
var height = request.BlockHeight.HasValue ? request.BlockHeight.Value : (ulong)this.chainIndexer.Height;
ChainedHeader chainedHeader = this.chainIndexer.GetHeader((int)height);
var scHeader = chainedHeader?.Header as ISmartContractBlockHeader;
IStateRepositoryRoot stateAtHeight = this.stateRoot.GetSnapshotTo(scHeader.HashStateRoot.ToBytes());
uint160 addressNumeric = request.ContractAddress.ToUint160(this.network);
byte[] storageValue = stateAtHeight.GetStorageValue(addressNumeric, Encoding.UTF8.GetBytes(request.StorageKey));
if (storageValue == null)
{
return(this.NotFound(new
{
Message = string.Format("No data at storage with key {0}", request.StorageKey)
}));
}
// Interpret the storage bytes as an object of the given type
object interpretedStorageValue = this.InterpretStorageValue(request.DataType, storageValue);
// Use MethodParamStringSerializer to serialize the interpreted object to a string
string serialized = MethodParameterStringSerializer.Serialize(interpretedStorageValue, this.network);
return(this.Json(serialized));
}
public IActionResult ReplaceFederationMemberIp([FromBody] ReplaceFederationMemberIpModel model)
{
if (!this.ModelState.IsValid)
{
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
try
{
IPEndPoint endPointToReplace = model.EndPoint.ToIPEndPoint(this.fullNode.Network.DefaultPort);
IPEndPoint endPointToUse = model.EndPointToUse.ToIPEndPoint(this.fullNode.Network.DefaultPort);
if (!this.federatedPegSettings.FederationNodeIpEndPoints.Contains(endPointToReplace))
{
return(this.Json($"{endPointToReplace} does not exist in the federation."));
}
this.federatedPegSettings.FederationNodeIpEndPoints.Remove(endPointToReplace);
this.federatedPegSettings.FederationNodeIpAddresses.Remove(endPointToReplace.Address);
if (this.federatedPegSettings.FederationNodeIpEndPoints.Contains(endPointToUse))
{
return(this.Json($"{endPointToUse} already exists in the federation."));
}
this.federatedPegSettings.FederationNodeIpEndPoints.Add(endPointToUse);
this.federatedPegSettings.FederationNodeIpAddresses.Add(endPointToUse.Address);
return(this.Json($"{endPointToReplace} has been replaced with {endPointToUse}."));
}
catch (Exception e)
{
this.logger.Error("Exception thrown calling /api/FederationGateway/{0}: {1}.", FederationGatewayRouteEndPoint.FederationMemberIpReplace, e.Message);
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
protected async Task <IActionResult> Execute <TRequest>(TRequest request, CancellationToken token, Func <TRequest, CancellationToken, Task <IActionResult> > action, bool checkModelState = true)
{
if (checkModelState && !this.ModelState.IsValid)
{
Guard.NotNull(request, nameof(request));
this.Logger.LogTrace($"{nameof(request)}(-)[MODEL_STATE_INVALID]");
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
try
{
return(await action(request, token));
}
catch (FeatureException e)
{
this.Logger.LogError("Exception occurred: {0}", e.ToString());
return(e.MapToErrorResponse());
}
catch (Exception e)
{
this.Logger.LogError("Exception occurred: {0}", e.ToString());
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
public IActionResult Recover([FromBody] WalletRecoveryRequest request)
{
Guard.NotNull(request, nameof(request));
// checks the request is valid
if (!this.ModelState.IsValid)
{
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
try
{
Wallet wallet = this.walletManager.RecoverWallet(request.Password, request.Name, request.Mnemonic, request.CreationDate, passphrase: request.Passphrase);
this.SyncFromBestHeightForRecoveredWallets(request.CreationDate);
return(this.Ok());
}
catch (WalletException e)
{
// indicates that this wallet already exists
this.logger.LogError("Exception occurred: {0}", e.ToString());
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.Conflict, e.Message, e.ToString()));
}
catch (FileNotFoundException e)
{
// indicates that this wallet does not exist
this.logger.LogError("Exception occurred: {0}", e.ToString());
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.NotFound, "Wallet not found.", e.ToString()));
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
public IActionResult SetupColdStaking([FromBody] SetupColdStakingRequest request)
{
Guard.NotNull(request, nameof(request));
// Checks the request is valid.
if (!this.ModelState.IsValid)
{
this.logger.LogTrace("(-)[MODEL_STATE_INVALID]");
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
try
{
var amount = Money.Parse(request.Amount);
var feeAmount = Money.Parse(request.Fees);
var transaction = this.ColdStakingManager.GetColdStakingSetupTransaction(
this.walletTransactionHandler, request.ColdWalletAddress, request.HotWalletAddress,
request.WalletName, request.WalletAccount, request.WalletPassword, amount, feeAmount,
request.SegwitChangeAddress, request.PayToScript);
var model = new SetupColdStakingResponse
{
TransactionHex = transaction.ToHex()
};
this.logger.LogTrace("(-):'{0}'", model);
return(Json(model));
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
this.logger.LogTrace("(-)[ERROR]");
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
public IActionResult SignWantedSystemMessageAsync([FromBody] SignWantedSystemMessageRequest request)
{
Guard.NotNull(request, nameof(request));
// checks the request is valid
if (!this.ModelState.IsValid)
{
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
try
{
// parse the transaction
Transaction tx = this.network.CreateTransaction(request.TransactionHex);
// check if we have the message transaction in our message store
WalletManager wm = this.walletManager as WalletManager;
if (!wm.WantedSystemMessages.Any(t => t.Key == tx.GetHash()))
{
throw new Exception($"The transcation with hash '{tx.GetHash()}' is not in the message store. You must upload it first by using the upload-wanted-system-message API.");
}
//WantedSystemMessageModel wantedMessage = wm.WantedSystemMessages.First(t => t.Key == tx.GetHash()).Value;
// get the signing keys
List <BitcoinExtKey> privateKeys = new List <BitcoinExtKey>();
if (!String.IsNullOrWhiteSpace(request.SigningKey))
{
// parse request.SigningKey into a Bitcoin Private Key
try
{
privateKeys.Add(new BitcoinExtKey(request.SigningKey));
}
catch
{
throw new Exception($"The signing key you provided is not in a valid format.");
}
}
else
{
throw new Exception($"You must provide a signing key in order to sign the message.");
// TODO: add our own private keys
}
// sign the transaction with the key
var reviewerAddress = wm.ReviewerAddresses[request.ReviewerAddress];
if (reviewerAddress == null)
{
throw new Exception($"The reviewer '{request.ReviewerAddress}' was not found in the address book.");
}
TransactionBuilder tb = new TransactionBuilder(this.network);
tb.AddCoins((this.walletTransactionHandler as WalletTransactionHandler).GetCoinsForReviewersAddress(reviewerAddress));
tb.AddCoins(tx);
Transaction signedTx = tb.AddKeys(privateKeys.ToArray()).SignTransaction(tx);
if (signedTx.GetHash() == tx.GetHash())
{
throw new Exception($"The signing key you provided is not associated with the message or it is already signed with that key.");
}
// return the (partially) signed transaction
SignWantedSystemMessageModel model = new SignWantedSystemMessageModel
{
TransactionHex = signedTx.ToHex(),
WasSigned = request.TransactionHex != signedTx.ToHex()
};
return(this.Json(model));
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
public IActionResult SendWantedSystemMessageAsync([FromBody] SendWantedSystemMessageRequest request)
{
Guard.NotNull(request, nameof(request));
// checks the request is valid
if (!this.ModelState.IsValid)
{
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
if (!this.connectionManager.ConnectedPeers.Any())
{
throw new WalletException("Can't send transaction: sending transaction requires at least one connection!");
}
try
{
Transaction transaction = this.network.CreateTransaction(request.Hex);
WalletSendTransactionModel model = new WalletSendTransactionModel
{
TransactionId = transaction.GetHash(),
Outputs = new List <TransactionOutputModel>()
};
foreach (var output in transaction.Outputs)
{
if (WantedSystemMessageTemplate.Instance.CheckScriptPubKey(output.ScriptPubKey))
{
model.Outputs.Add(new TransactionOutputModel
{
Address = $"N/A (Wanted System Message)",
Amount = output.Value
});
}
else
{
model.Outputs.Add(new TransactionOutputModel
{
Address = output.ScriptPubKey.GetDestinationAddress(this.network).ToString(),
Amount = output.Value
});
}
}
if (transaction.Inputs.All(tri => String.IsNullOrEmpty(tri.ScriptSig.ToString())))
{
throw new Exception("This transcation is not signed. In order to publish a transaction on the network, it must be fully signed first.");
}
if (transaction.Inputs.Any(tri => String.IsNullOrEmpty(tri.ScriptSig.ToString())))
{
throw new Exception("This transcation is only partially signed. In order to publish a transaction on the network, it must be fully signed first.");
}
this.walletManager.ProcessTransaction(transaction, null, null, false);
this.broadcasterManager.BroadcastTransactionAsync(transaction).GetAwaiter().GetResult();
return(this.Json(model));
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
public IActionResult CreateReviewerAddressAsync([FromBody] CreateReviewerAddressRequest request)
{
Guard.NotNull(request, nameof(request));
// checks the request is valid
if (!this.ModelState.IsValid)
{
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
try
{
// calculate the Manager password hash
byte[] binaryPassword = System.Text.Encoding.ASCII.GetBytes(request.RsaPassword);
Org.BouncyCastle.Crypto.Digests.Sha512Digest sha = new Org.BouncyCastle.Crypto.Digests.Sha512Digest();
sha.BlockUpdate(binaryPassword, 0, binaryPassword.Length);
byte[] shaOutput = new byte[512 / 8];
sha.DoFinal(shaOutput, 0);
NBitcoin.DataEncoders.HexEncoder he = new NBitcoin.DataEncoders.HexEncoder();
string rsaPasswordHashHex = he.EncodeData(shaOutput);
// create the multisig address
PubKey[] groupMemberKeys = request.SignaturePubKeys.Select(pubKeyHex => new PubKey(pubKeyHex)).ToArray();
var scriptPubKey = PayToMultiSigTemplate
.Instance
.GenerateScriptPubKey(request.RequeiredSignatureCount, groupMemberKeys);
PublicReviewerAddressModel model = new PublicReviewerAddressModel
{
PublicApiUrl = request.PublicApiUrl
};
// check if the API is reachable and the address can be added to the watch list
Uri apiRequestUri = new Uri(new Uri(model.PublicApiUrl), $"/api/WatchOnlyWallet/watch?address={scriptPubKey.Hash.GetAddress(this.network).ToString()}");
try
{
HttpWebRequest apiRequest = (HttpWebRequest)WebRequest.Create(apiRequestUri);
ASCIIEncoding encoding = new ASCIIEncoding();
string postData = "";
byte[] data = encoding.GetBytes(postData);
apiRequest.Method = "POST";
apiRequest.ContentType = "application/x-www-form-urlencoded";
apiRequest.ContentLength = data.Length;
using (Stream stream = apiRequest.GetRequestStream())
{
stream.Write(data, 0, data.Length);
}
HttpWebResponse apiResponse = (HttpWebResponse)apiRequest.GetResponse();
string responseString = new StreamReader(apiResponse.GetResponseStream()).ReadToEnd();
if (apiResponse.StatusCode != HttpStatusCode.OK)
{
throw new Exception($"The API request '{apiRequestUri.ToString()}' returned the status code '{apiResponse.StatusCode}'.");
}
}
catch (Exception e)
{
throw new Exception($"The API request '{apiRequestUri.ToString()}' returned an error '{e.Message}'.");
}
// generate the RSA keypair for the address
AsymmetricCipherKeyPair rsaKeyPair = GetRSAKeyPairFromSeed(request.RsaPassword + scriptPubKey.Hash.GetAddress(this.network).ToString());
RsaKeyParameters rsaPublicKey = rsaKeyPair.Public as RsaKeyParameters;
RsaPublicKey pbk = new RsaPublicKey()
{
Exponent = rsaPublicKey.Exponent.ToByteArrayUnsigned(),
Modulus = rsaPublicKey.Modulus.ToByteArrayUnsigned()
};
RsaPrivateCrtKeyParameters rsaPrivateKey = rsaKeyPair.Private as RsaPrivateCrtKeyParameters;
RsaPrivateKey prk = new RsaPrivateKey()
{
DP = rsaPrivateKey.DP.ToByteArrayUnsigned(),
DQ = rsaPrivateKey.DQ.ToByteArrayUnsigned(),
Exponent = rsaPrivateKey.Exponent.ToByteArrayUnsigned(),
Modulus = rsaPrivateKey.Modulus.ToByteArrayUnsigned(),
P = rsaPrivateKey.P.ToByteArrayUnsigned(),
PublicExponent = rsaPrivateKey.PublicExponent.ToByteArrayUnsigned(),
Q = rsaPrivateKey.Q.ToByteArrayUnsigned(),
QInv = rsaPrivateKey.QInv.ToByteArrayUnsigned()
};
// return all the information we have
model = new PublicReviewerAddressModel
{
Network = this.network.ToString(),
Address = scriptPubKey.Hash.GetAddress(this.network).ToString(),
PublicName = request.PublicName,
GroupName = request.GroupName,
ValidFrom = request.ValidFrom.ToString("o"),
ValidUntil = request.ValidUntil.ToString("o"),
ScriptPubKeyHex = scriptPubKey.ToHex(),
RsaPublicKeyHex = pbk.ToHex(),
RsaPrivateKeyHex = prk.ToHex(),
RsaPasswordHashHex = rsaPasswordHashHex,
PublicApiUrl = request.PublicApiUrl
};
((WalletManager)this.walletManager).AddReviewerAddressToReviewerStore(model);
return(this.Json(model));
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
public IActionResult GetBlock([FromQuery] SearchByHashRequest query)
{
if (!this.ModelState.IsValid)
{
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
try
{
uint256 blockId = uint256.Parse(query.Hash);
ChainedHeader chainedHeader = this.chainIndexer.GetHeader(blockId);
if (chainedHeader == null)
{
return(this.Ok("Block not found"));
}
Block block = chainedHeader.Block ?? this.blockStore.GetBlock(blockId);
// In rare occasions a block that is found in the
// indexer may not have been pushed to the store yet.
if (block == null)
{
return(this.Ok("Block not found"));
}
if (!query.OutputJson)
{
return(this.Json(block));
}
BlockModel blockModel = query.ShowTransactionDetails
? new BlockTransactionDetailsModel(block, chainedHeader, this.chainIndexer.Tip, this.network)
: new BlockModel(block, chainedHeader, this.chainIndexer.Tip, this.network);
if (this.network.Consensus.IsProofOfStake)
{
var posBlock = block as PosBlock;
blockModel.PosBlockSignature = posBlock.BlockSignature.ToHex(this.network.Consensus.ConsensusFactory);
blockModel.PosBlockTrust = new Target(chainedHeader.GetBlockTarget()).ToUInt256().ToString();
blockModel.PosChainTrust = chainedHeader.ChainWork.ToString(); // this should be similar to ChainWork
if (this.stakeChain != null)
{
BlockStake blockStake = this.stakeChain.Get(blockId);
blockModel.PosModifierv2 = blockStake?.StakeModifierV2.ToString();
blockModel.PosFlags = blockStake?.Flags == BlockFlag.BLOCK_PROOF_OF_STAKE ? "proof-of-stake" : "proof-of-work";
blockModel.PosHashProof = blockStake?.HashProof.ToString();
}
}
return(this.Json(blockModel));
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
public IActionResult UploadWantedSystemMessageAsync([FromBody] UploadWantedSystemMessageRequest request)
{
Guard.NotNull(request, nameof(request));
// checks the request is valid
if (!this.ModelState.IsValid)
{
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
try
{
Transaction transaction = this.network.CreateTransaction(request.TransactionHex);
var wantedMessageOuts = transaction.Outputs.Where(txOut => WantedSystemMessageTemplate.Instance.CheckScriptPubKey(txOut.ScriptPubKey));
if (wantedMessageOuts.Count() == 0)
{
throw new Exception("The transaction you provided doesn't contain any Wanted System Messages.");
}
var wm = this.walletManager as WalletManager;
WantedSystemMessageModel wsmm = null;
// let's make sure that the transaction is put into the message store
wsmm = wm.AddWantedSystemMessageToMessageStore(transaction);
// add the partially signed transaction to the message store
// TODO: do not limit this check to the first input
if (transaction.Inputs[0].ScriptSig.Length > 0)
{
wsmm = wm.AddPartiallySignedTxToMessageStore(transaction);
}
// get the reviewer's address details
var reviewerAddress = wm.ReviewerAddresses[request.ReviewerAddress];
if (reviewerAddress == null)
{
throw new Exception($"The reviewer '{request.ReviewerAddress}' was not found in the address book.");
}
var multiSigParams = PayToMultiSigTemplate.Instance.ExtractScriptPubKeyParameters(reviewerAddress.ScriptPubKey);
// try to combine the partially signed signatures
TransactionBuilder tb = new TransactionBuilder(this.network);
tb.AddCoins((this.walletTransactionHandler as WalletTransactionHandler).GetCoinsForReviewersAddress(reviewerAddress));
var fullySignedTx = tb.CombineSignatures(wsmm.PartiallySignedTransactions.Select(stx => this.network.CreateTransaction(stx.TransactionHex)).ToArray());
if (fullySignedTx != null)
{
var checkResults = fullySignedTx.Check();
// TODO: do not limit this check to the first input
string[] signatures = fullySignedTx.Inputs[0].ScriptSig.ToString().Split(' ');
int signatureCount = signatures.Count(s => s != "0");
if ((checkResults != TransactionCheckResult.Success) || (signatureCount < multiSigParams.SignatureCount))
{
fullySignedTx = null;
}
}
// return the fully signed transaction if available
UploadWantedSystemMessageModel model = new UploadWantedSystemMessageModel
{
WantedSystemMessage = wsmm,
FullySignedTransactionHex = fullySignedTx == null ? "" : fullySignedTx.ToHex()
};
return(this.Json(model));
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
public IActionResult SetupOfflineColdStaking([FromBody] SetupOfflineColdStakingRequest request)
{
Guard.NotNull(request, nameof(request));
// Checks the request is valid.
if (!this.ModelState.IsValid)
{
this.logger.LogTrace("(-)[MODEL_STATE_INVALID]");
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
try
{
Money amount = Money.Parse(request.Amount);
Money feeAmount = Money.Parse(request.Fees);
(Transaction transaction, TransactionBuildContext context) = this.ColdStakingManager.GetColdStakingSetupTransaction(
this.walletTransactionHandler,
request.ColdWalletAddress,
request.HotWalletAddress,
request.WalletName,
request.WalletAccount,
null,
amount,
feeAmount,
request.SubtractFeeFromAmount,
true,
request.SplitCount,
request.SegwitChangeAddress);
// TODO: We use the same code in the regular wallet for offline signing request construction, perhaps it should be moved to a common method
// Need to be able to look up the keypath for the UTXOs that were used.
IEnumerable <UnspentOutputReference> spendableTransactions = this.ColdStakingManager.GetSpendableTransactionsInAccount(
new WalletAccountReference(request.WalletName, request.WalletAccount)).ToList();
var utxos = new List <UtxoDescriptor>();
var addresses = new List <AddressDescriptor>();
foreach (ICoin coin in context.TransactionBuilder.FindSpentCoins(transaction))
{
utxos.Add(new UtxoDescriptor()
{
Amount = coin.TxOut.Value.ToUnit(MoneyUnit.BTC).ToString(),
TransactionId = coin.Outpoint.Hash.ToString(),
Index = coin.Outpoint.N.ToString(),
ScriptPubKey = coin.TxOut.ScriptPubKey.ToHex()
});
UnspentOutputReference outputReference = spendableTransactions.FirstOrDefault(u => u.Transaction.Id == coin.Outpoint.Hash && u.Transaction.Index == coin.Outpoint.N);
if (outputReference != null)
{
bool segwit = outputReference.Transaction.ScriptPubKey.IsScriptType(ScriptType.P2WPKH);
addresses.Add(new AddressDescriptor()
{
Address = segwit ? outputReference.Address.Bech32Address : outputReference.Address.Address, AddressType = segwit ? "p2wpkh" : "p2pkh", KeyPath = outputReference.Address.HdPath
});
}
}
// Return transaction hex, UTXO list, address list. The offline signer will infer from the transaction structure that a cold staking setup is being made.
var model = new BuildOfflineSignResponse()
{
WalletName = request.WalletName,
WalletAccount = request.WalletAccount,
Fee = context.TransactionFee.ToUnit(MoneyUnit.BTC).ToString(),
UnsignedTransaction = transaction.ToHex(),
Utxos = utxos,
Addresses = addresses
};
this.logger.LogTrace("(-):'{0}'", model);
return(this.Json(model));
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
this.logger.LogTrace("(-)[ERROR]");
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
public IActionResult ListSpendableTransactionOuts([FromBody] ListSpendableTransactionOutsRequest request)
{
Guard.NotNull(request, nameof(request));
// checks the request is valid
if (!this.ModelState.IsValid)
{
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
try
{
string requestWalletName = null;
string requestAccountName = null;
if (String.IsNullOrWhiteSpace(request.WalletName) || String.IsNullOrWhiteSpace(request.AccountName))
{
// let's find the proper wallet and account first
foreach (var walletName in this.walletManager.GetWalletsNames())
{
HdAddress address = null;
foreach (var hdAccount in this.walletManager.GetWallet(walletName).GetAccountsByCoinType(this.coinType))
{
address = hdAccount.ExternalAddresses.FirstOrDefault(hdAddress => hdAddress.Address.ToString() == request.Address);
if (address == null)
{
address = hdAccount.InternalAddresses.FirstOrDefault(hdAddress => hdAddress.Address.ToString() == request.Address);
}
if (address != null)
{
requestAccountName = hdAccount.Name;
break;
}
}
if (requestAccountName != null)
{
requestWalletName = walletName;
break;
}
}
if ((requestWalletName == null) || (requestAccountName == null))
{
throw new Exception("The address you requested is not in this wallet.");
}
}
else
{
requestWalletName = request.WalletName;
requestAccountName = request.AccountName;
}
WalletAccountReference account = new WalletAccountReference(requestWalletName, requestAccountName);
List <DetailedSpendableTransactionModel> transactionList = new List <DetailedSpendableTransactionModel>();
foreach (var spendableOutput in this.walletManager.GetSpendableTransactionsInAccount(account, request.MinConfirmations).OrderByDescending(a => a.Transaction.Amount))
{
if (spendableOutput.Transaction.Amount == 0)
{
continue;
}
if (!String.IsNullOrWhiteSpace(request.Address) && (spendableOutput.Address.Address.ToString() != request.Address))
{
continue;
}
transactionList.Add(new DetailedSpendableTransactionModel()
{
Address = spendableOutput.Address.Address.ToString(),
TransactionHash = spendableOutput.Transaction.Id,
Index = spendableOutput.Transaction.Index,
Amount = spendableOutput.Transaction.Amount.Satoshi,
ScriptPubKey = spendableOutput.Transaction.ScriptPubKey.ToHex()
});
}
ListSpendableTransactionsModel model = new ListSpendableTransactionsModel
{
Network = this.network.ToString(),
WalletName = account.WalletName,
AccountName = account.AccountName,
SpendableTransactions = transactionList
};
return(this.Json(model));
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
public IActionResult GetHistory([FromQuery] WalletHistoryRequest request)
{
Guard.NotNull(request, nameof(request));
if (!this.ModelState.IsValid)
{
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
try
{
var model = new WalletHistoryModel();
// Get a list of all the transactions found in an account (or in a wallet if no account is specified), with the addresses associated with them.
IEnumerable <AccountHistory> accountsHistory = this.walletManager.GetHistory(request.WalletName, request.AccountName);
foreach (AccountHistory accountHistory in accountsHistory)
{
var transactionItems = new List <TransactionItemModel>();
List <FlatHistory> items = accountHistory.History.OrderByDescending(o => o.Transaction.CreationTime).Take(200).ToList();
// Represents a sublist containing only the transactions that have already been spent.
List <FlatHistory> spendingDetails = items.Where(t => t.Transaction.SpendingDetails != null).ToList();
// Represents a sublist of transactions associated with receive addresses + a sublist of already spent transactions associated with change addresses.
// In effect, we filter out 'change' transactions that are not spent, as we don't want to show these in the history.
List <FlatHistory> history = items.Where(t => !t.Address.IsChangeAddress() || (t.Address.IsChangeAddress() && !t.Transaction.IsSpendable())).ToList();
// Represents a sublist of 'change' transactions.
List <FlatHistory> allchange = items.Where(t => t.Address.IsChangeAddress()).ToList();
foreach (FlatHistory item in history)
{
TransactionData transaction = item.Transaction;
HdAddress address = item.Address;
// We don't show in history transactions that are outputs of staking transactions.
if (transaction.IsCoinStake != null && transaction.IsCoinStake.Value && transaction.SpendingDetails == null)
{
continue;
}
// First we look for staking transaction as they require special attention.
// A staking transaction spends one of our inputs into 2 outputs, paid to the same address.
if (transaction.SpendingDetails?.IsCoinStake != null && transaction.SpendingDetails.IsCoinStake.Value)
{
// We look for the 2 outputs related to our spending input.
List <FlatHistory> relatedOutputs = items.Where(h => h.Transaction.Id == transaction.SpendingDetails.TransactionId && h.Transaction.IsCoinStake != null && h.Transaction.IsCoinStake.Value).ToList();
if (relatedOutputs.Any())
{
// Add staking transaction details.
// The staked amount is calculated as the difference between the sum of the outputs and the input and should normally be equal to 1.
var stakingItem = new TransactionItemModel
{
Type = TransactionItemType.Staked,
ToAddress = address.Address,
Amount = relatedOutputs.Sum(o => o.Transaction.Amount) - transaction.Amount,
Id = transaction.SpendingDetails.TransactionId,
Timestamp = transaction.SpendingDetails.CreationTime,
ConfirmedInBlock = transaction.SpendingDetails.BlockHeight
};
transactionItems.Add(stakingItem);
}
// No need for further processing if the transaction itself is the output of a staking transaction.
if (transaction.IsCoinStake != null)
{
continue;
}
}
// Create a record for a 'receive' transaction.
if (!address.IsChangeAddress())
{
// Add incoming fund transaction details.
var receivedItem = new TransactionItemModel
{
Type = TransactionItemType.Received,
ToAddress = address.Address,
Amount = transaction.Amount,
Id = transaction.Id,
Timestamp = transaction.CreationTime,
ConfirmedInBlock = transaction.BlockHeight
};
transactionItems.Add(receivedItem);
}
// If this is a normal transaction (not staking) that has been spent, add outgoing fund transaction details.
if (transaction.SpendingDetails != null && transaction.SpendingDetails.IsCoinStake == null)
{
// Create a record for a 'send' transaction.
uint256 spendingTransactionId = transaction.SpendingDetails.TransactionId;
var sentItem = new TransactionItemModel
{
Type = TransactionItemType.Send,
Id = spendingTransactionId,
Timestamp = transaction.SpendingDetails.CreationTime,
ConfirmedInBlock = transaction.SpendingDetails.BlockHeight,
Amount = Money.Zero
};
// If this 'send' transaction has made some external payments, i.e the funds were not sent to another address in the wallet.
if (transaction.SpendingDetails.Payments != null)
{
sentItem.Payments = new List <PaymentDetailModel>();
foreach (PaymentDetails payment in transaction.SpendingDetails.Payments)
{
sentItem.Payments.Add(new PaymentDetailModel
{
DestinationAddress = payment.DestinationAddress,
Amount = payment.Amount
});
sentItem.Amount += payment.Amount;
}
}
// Get the change address for this spending transaction.
FlatHistory changeAddress = allchange.FirstOrDefault(a => a.Transaction.Id == spendingTransactionId);
// Find all the spending details containing the spending transaction id and aggregate the sums.
// This is our best shot at finding the total value of inputs for this transaction.
var inputsAmount = new Money(spendingDetails.Where(t => t.Transaction.SpendingDetails.TransactionId == spendingTransactionId).Sum(t => t.Transaction.Amount));
// The fee is calculated as follows: funds in utxo - amount spent - amount sent as change.
sentItem.Fee = inputsAmount - sentItem.Amount - (changeAddress == null ? 0 : changeAddress.Transaction.Amount);
// Mined/staked coins add more coins to the total out.
// That makes the fee negative. If that's the case ignore the fee.
if (sentItem.Fee < 0)
{
sentItem.Fee = 0;
}
if (!transactionItems.Contains(sentItem, new SentTransactionItemModelComparer()))
{
transactionItems.Add(sentItem);
}
}
}
model.AccountsHistoryModel.Add(new AccountHistoryModel
{
TransactionsHistory = transactionItems.OrderByDescending(t => t.Timestamp).ToList(),
Name = accountHistory.Account.Name,
CoinType = this.coinType,
HdPath = accountHistory.Account.HdPath
});
}
return(this.Json(model));
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
//[ProducesResponseType(typeof(void), 401)]
public IActionResult GetBlockAsync(string id, [FromQuery] BlockQueryRequest query)
{
if (!this.ModelState.IsValid)
{
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
ChainedHeader chainHeader = null;
if (string.IsNullOrWhiteSpace(id))
{
throw new ArgumentNullException("id", "id must be block hash or block height");
}
// If the id is more than 50 characters, it is likely hash and not height.
if (id.Length < 50)
{
chainHeader = this.chain.GetHeader(int.Parse(id));
}
else
{
chainHeader = this.chain.GetHeader(new uint256(id));
}
if (chainHeader == null)
{
return(new NotFoundObjectResult("Block not found"));
}
try
{
Block block = this.blockStoreCache.GetBlock(chainHeader.Header.GetHash());
if (block == null)
{
return(new NotFoundObjectResult("Block not found"));
}
PosBlockModel blockModel = new PosBlockModel(block, this.chain);
if (this.stakeChain != null)
{
BlockStake blockStake = this.stakeChain.Get(chainHeader.HashBlock);
if (blockStake != null)
{
blockModel.StakeTime = blockStake.StakeTime;
blockModel.StakeModifierV2 = blockStake.StakeModifierV2;
blockModel.HashProof = blockStake.HashProof;
}
}
return(Json(blockModel));
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
