public IActionResult DecryptWantedSystemMessageAsync([FromBody] DecryptWantedSystemMessageRequest request)
{
Guard.NotNull(request, nameof(request));
// checks the request is valid
if (!this.ModelState.IsValid)
{
return(ModelStateErrors.BuildErrorResponse(this.ModelState));
}
try
{
Script scriptPubKey = this.network.CreateTransaction(request.TransactionHex).Outputs[request.MessageOutputIndex].ScriptPubKey;
RsaPrivateKey rsaPrivateKey = null;
if (!String.IsNullOrEmpty(request.RsaPrivateKeyHex))
{
try
{
rsaPrivateKey = RsaPrivateKey.FromHex(request.RsaPrivateKeyHex);
}
catch
{
throw new Exception("The RSA private key you provided was not in the correct form.");
}
}
NBitcoin.Messaging.WantedSystemMessage sm = WantedSystemMessageTemplate.Instance.GetWantedSystemMessage(scriptPubKey, rsaPrivateKey);
var model = new DecryptedWantedSystemMessageModel
{
Version = sm.Version,
Compression = sm.Compression.ToString(),
ChecksumType = sm.ChecksumType.ToString(),
Encryption = sm.Encryption.ToString(),
Metadata = sm.Metadata.ToString(),
Text = sm.Text
};
return(this.Json(model));
}
catch (Exception e)
{
this.logger.LogError("Exception occurred: {0}", e.ToString());
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, e.Message, e.ToString()));
}
}
private void AddMessage(TransactionBuildContext context)
{
if (context.Message == null)
{
return;
}
// load rsa keys from the address book
Wallet wallet = this.walletManager.GetWallet(context.AccountReference.WalletName);
WalletManager wm = (WalletManager)this.walletManager;
if (context.EncryptMessage)
{
if (!wm.ReviewerAddresses.ContainsKey(context.MessageRecipient))
{
throw new Exception($"The recipient '{context.MessageRecipient}' was not found in the address book.");
}
var reviewerAddress = wm.ReviewerAddresses[context.MessageRecipient];
if (String.IsNullOrEmpty(reviewerAddress.RsaPrivateKeyHex))
{
throw new Exception($"The reviewers' address '{reviewerAddress.Address}' was recognized, but its private key information was not received from the '{reviewerAddress.PublicApiUrl}' address. This is usually means that the current, requesting node has no access rights to it, so: (A) you must use a different address from your local node OR (B) call this method on the node where the address was originally created on.");
}
context.TransactionBuilder.SendMessage(context.Message, context.MessageRecipient, context.MessageReplyToAddress, context.MessageRewardAddress, RsaPublicKey.FromHex(reviewerAddress.RsaPublicKeyHex), RsaPrivateKey.FromHex(reviewerAddress.RsaPrivateKeyHex));
}
else
{
context.TransactionBuilder.SendMessage(context.Message, context.MessageRecipient, context.MessageReplyToAddress, context.MessageRewardAddress);
}
}