/// <inheritdoc/>
public override void CheckTransaction(MempoolValidationContext context)
{
if (context.Transaction.IsCoinBase || context.Transaction.IsCoinStake)
{
return;
}
// This will raise a consensus error if there is a voting request and it can't be decoded.
JoinFederationRequest request = JoinFederationRequestBuilder.Deconstruct(context.Transaction, this.encoder);
if (request == null)
{
return;
}
if (FederationVotingController.IsMultisigMember(this.network, request.PubKey))
{
this.logger.LogTrace("(-)[INVALID_MULTISIG_VOTING]");
context.State.Fail(MempoolErrors.VotingRequestInvalidMultisig, $"{context.Transaction.GetHash()} has an invalid voting request for a multisig member.").Throw();
}
// Check collateral amount?
if (request.CollateralAmount.ToDecimal(MoneyUnit.BTC) != CollateralPoAMiner.MinerCollateralAmount)
{
this.logger.LogTrace("(-)[INVALID_COLLATERAL_REQUIREMENT]");
context.State.Fail(MempoolErrors.InvalidCollateralRequirement, $"{context.Transaction.GetHash()} has a voting request with an invalid colateral requirement.").Throw();
}
if (!(this.federationManager is CollateralFederationManager federationManager))
{
return;
}
// Prohibit re-use of collateral addresses.
Script script = PayToPubkeyHashTemplate.Instance.GenerateScriptPubKey(request.CollateralMainchainAddress);
string collateralAddress = script.GetDestinationAddress(this.network).ToString();
CollateralFederationMember owner = federationManager.CollateralAddressOwner(this.votingManager, VoteKey.AddFederationMember, collateralAddress);
if (owner != null && owner.PubKey != request.PubKey)
{
this.logger.LogTrace("(-)[INVALID_COLLATERAL_REUSE]");
context.State.Fail(MempoolErrors.VotingRequestInvalidCollateralReuse, $"{context.Transaction.GetHash()} has a voting request that's re-using collateral.").Throw();
}
}
private IActionResult VoteAddKickFedMember(CollateralFederationMemberModel 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 (FederationVotingController.IsMultisigMember(this.network, key))
{
return(ErrorHelpers.BuildErrorResponse(HttpStatusCode.BadRequest, "Multisig members can't be voted on", string.Empty));
}
IFederationMember federationMember = new CollateralFederationMember(key, false, 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()));
}
}
protected override List <IFederationMember> LoadFederation()
{
List <CollateralFederationMemberModel> fedMemberModels = this.keyValueRepo.LoadValueJson <List <CollateralFederationMemberModel> >(federationMembersDbKey);
if (fedMemberModels == null)
{
this.logger.LogTrace("(-)[NOT_FOUND]:null");
return(null);
}
var federation = new List <IFederationMember>(fedMemberModels.Count);
foreach (CollateralFederationMemberModel fedMemberModel in fedMemberModels)
{
PubKey pubKey = new PubKey(fedMemberModel.PubKeyHex);
bool isMultisigMember = FederationVotingController.IsMultisigMember(this.network, pubKey);
federation.Add(new CollateralFederationMember(pubKey, isMultisigMember, new Money(fedMemberModel.CollateralAmountSatoshis),
fedMemberModel.CollateralMainchainAddress));
}
return(federation);
}