protected Task ValidateNonceRevelation(RawNonceRevelationContent revelation, RawBlock rawBlock)
{
if (revelation.Level % Protocol.BlocksPerCommitment != 0)
{
throw new ValidationException("invalid seed nonce revelation level");
}
if (revelation.Metadata.BalanceUpdates.Count != 1)
{
throw new ValidationException("invalid seed nonce revelation balance updates count");
}
if (!(revelation.Metadata.BalanceUpdates[0] is RewardsUpdate))
{
throw new ValidationException("invalid seed nonce revelation balance update type");
}
if (revelation.Metadata.BalanceUpdates[0].Change != Protocol.RevelationReward)
{
throw new ValidationException("invalid seed nonce revelation balance update amount");
}
if (!Cache.Accounts.DelegateExists(revelation.Metadata.BalanceUpdates[0].Target) ||
revelation.Metadata.BalanceUpdates[0].Target != rawBlock.Metadata.Baker)
{
throw new ValidationException("invalid seed nonce revelation baker");
}
return(Task.CompletedTask);
}
protected async Task ValidateOrigination(RawOriginationContent origination, RawBlock rawBlock)
{
if (!await Cache.Accounts.ExistsAsync(origination.Source))
{
throw new ValidationException("unknown source account");
}
if (origination.Metadata.Result.Status == "applied" && origination.Delegate != null)
{
if (!Cache.Accounts.DelegateExists(origination.Delegate))
{
throw new ValidationException("unknown delegate");
}
}
ValidateFeeBalanceUpdates(
origination.Metadata.BalanceUpdates,
rawBlock.Metadata.Baker,
origination.Source,
origination.Fee,
rawBlock.Metadata.LevelInfo.Cycle);
if (origination.Metadata.Result.BalanceUpdates != null)
{
ValidateTransferBalanceUpdates(
origination.Metadata.Result.BalanceUpdates,
origination.Source,
origination.Metadata.Result.OriginatedContracts[0],
origination.Balance,
origination.Metadata.Result.PaidStorageSizeDiff * Protocol.ByteCost,
Protocol.OriginationSize * Protocol.ByteCost);
}
}
protected async Task ValidateBallot(RawBallotContent ballot, RawBlock rawBlock)
{
var period = await Cache.Periods.CurrentAsync();
if (period.EndLevel == rawBlock.Level - 1)
{
return;
}
var proposal = await Cache.Proposals.GetAsync((period as ExplorationPeriod)?.ProposalId ?? (period as PromotionPeriod).ProposalId);
if (proposal.Hash != ballot.Proposal)
{
throw new ValidationException("invalid ballot proposal");
}
if (!Cache.Accounts.DelegateExists(ballot.Source))
{
throw new ValidationException("invalid proposal sender");
}
if (ballot.Period != rawBlock.Metadata.LevelInfo.VotingPeriod)
{
throw new ValidationException("invalid proposal voting period");
}
}
public Task Init(Block block, RawBlock rawBlock)
{
Block = block;
NextProtocol = rawBlock.Metadata.NextProtocol;
AppState = Cache.AppState.Get();
return(Task.CompletedTask);
}
public async Task Init(RawBlock rawBlock)
{
var protocol = await Cache.Protocols.GetAsync(rawBlock.Protocol);
var votingPeriod = await Cache.Periods.CurrentAsync();
var events = BlockEvents.None;
if (rawBlock.Level % protocol.BlocksPerCycle == 1)
{
events |= BlockEvents.CycleBegin;
}
else if (rawBlock.Level % protocol.BlocksPerCycle == 0)
{
events |= BlockEvents.CycleEnd;
}
if (protocol.FirstLevel == rawBlock.Level)
{
events |= BlockEvents.ProtocolBegin;
}
else if (rawBlock.Metadata.Protocol != rawBlock.Metadata.NextProtocol)
{
events |= BlockEvents.ProtocolEnd;
}
if (rawBlock.Level == votingPeriod.EndLevel)
{
events |= BlockEvents.VotingPeriodEnd;
}
else if (rawBlock.Level > votingPeriod.EndLevel)
{
events |= BlockEvents.VotingPeriodBegin;
}
if (rawBlock.Metadata.Deactivated.Count > 0)
{
events |= BlockEvents.Deactivations;
}
if (rawBlock.Level % protocol.BlocksPerSnapshot == 0)
{
events |= BlockEvents.Snapshot;
}
var validations = rawBlock.Operations[0].Sum(x => (x.Contents[0] as RawEndorsementContent).Metadata.Slots.Count);
Block = new Block
{
Id = Cache.AppState.NextOperationId(),
Hash = rawBlock.Hash,
Level = rawBlock.Level,
Protocol = protocol,
Timestamp = rawBlock.Header.Timestamp,
Priority = rawBlock.Header.Priority,
Baker = Cache.Accounts.GetDelegate(rawBlock.Metadata.Baker),
Events = events,
Reward = protocol.BlockReward0 * (8 + 2 * validations / protocol.EndorsersPerBlock) / 10 / (rawBlock.Header.Priority + 1)
};
}
public static async Task <BlockCommit> Apply(ProtocolHandler proto, RawBlock rawBlock)
{
var commit = new BlockCommit(proto);
await commit.Init(rawBlock);
await commit.Apply();
return(commit);
}
protected Task ValidateDoubleEndorsing(RawDoubleEndorsingEvidenceContent de, RawBlock rawBlock)
{
if (de.Op1.Operations.Kind != "endorsement" || de.Op2.Operations.Kind != "endorsement")
{
throw new ValidationException("inconsistent double endorsing operations kind");
}
if (de.Op1.Operations.Level != de.Op2.Operations.Level)
{
throw new ValidationException("inconsistent double endorsing levels");
}
var rewardUpdate = de.Metadata.BalanceUpdates.FirstOrDefault(x => x.Change > 0) as RewardsUpdate
?? throw new ValidationException("double endorsing reward is missed");
if (rewardUpdate.Delegate != rawBlock.Metadata.Baker)
{
throw new ValidationException("invalid double endorsing reward recipient");
}
var lostDepositsUpdate = de.Metadata.BalanceUpdates.FirstOrDefault(x => x is DepositsUpdate && x.Change < 0) as DepositsUpdate;
var lostRewardsUpdate = de.Metadata.BalanceUpdates.FirstOrDefault(x => x is RewardsUpdate && x.Change < 0) as RewardsUpdate;
var lostFeesUpdate = de.Metadata.BalanceUpdates.FirstOrDefault(x => x is FeesUpdate && x.Change < 0) as FeesUpdate;
var offender = lostDepositsUpdate?.Delegate ?? lostRewardsUpdate?.Delegate ?? lostFeesUpdate?.Delegate;
if (!Cache.Accounts.DelegateExists(offender))
{
throw new ValidationException("invalid double endorsing offender");
}
if ((lostDepositsUpdate?.Delegate ?? offender) != offender ||
(lostRewardsUpdate?.Delegate ?? offender) != offender ||
(lostFeesUpdate?.Delegate ?? offender) != offender)
{
throw new ValidationException("invalid double endorsing offender updates");
}
if (rewardUpdate.Change != -((lostDepositsUpdate?.Change ?? 0) + (lostFeesUpdate?.Change ?? 0)) / 2)
{
throw new ValidationException("invalid double endorsing reward amount");
}
var accusedCycle = (de.Op1.Operations.Level - 1) / Protocol.BlocksPerCycle;
if ((lostDepositsUpdate?.Cycle ?? accusedCycle) != accusedCycle ||
(lostRewardsUpdate?.Cycle ?? accusedCycle) != accusedCycle ||
(lostFeesUpdate?.Cycle ?? accusedCycle) != accusedCycle)
{
throw new ValidationException("invalid double endorsing freezer level");
}
return(Task.CompletedTask);
}
public async Task Init(Block block, RawBlock rawBlock)
{
if (block.Events.HasFlag(BlockEvents.CycleEnd))
{
Protocol = await Cache.Protocols.GetAsync(rawBlock.Protocol);
var cycle = (rawBlock.Level - 1) / Protocol.BlocksPerCycle;
FreezerUpdates = rawBlock.Metadata.BalanceUpdates.Skip(Protocol.BlockReward0 > 0 ? 3 : 2)
.Where(x => x is FreezerUpdate fu && fu.Cycle == cycle - Protocol.PreservedCycles);
}
}
protected async Task ValidateEndorsement(RawEndorsementContent endorsement, RawBlock rawBlock)
{
var lastBlock = await Cache.Blocks.CurrentAsync();
if (endorsement.Level != lastBlock.Level)
{
throw new ValidationException("invalid endorsed block level");
}
if (!Cache.Accounts.DelegateExists(endorsement.Metadata.Delegate))
{
throw new ValidationException("invalid endorsement delegate");
}
if (endorsement.Metadata.BalanceUpdates.Count != 0 && endorsement.Metadata.BalanceUpdates.Count != (Protocol.BlockReward0 > 0 ? 3 : 2))
{
throw new ValidationException("invalid endorsement balance updates count");
}
if (endorsement.Metadata.BalanceUpdates.Count > 0)
{
var contractUpdate = endorsement.Metadata.BalanceUpdates.FirstOrDefault(x => x is ContractUpdate) as ContractUpdate
?? throw new ValidationException("invalid endorsement contract balance updates");
var depostisUpdate = endorsement.Metadata.BalanceUpdates.FirstOrDefault(x => x is DepositsUpdate) as DepositsUpdate
?? throw new ValidationException("invalid endorsement depostis balance updates");
if (contractUpdate.Contract != endorsement.Metadata.Delegate ||
contractUpdate.Change != -endorsement.Metadata.Slots.Count * Protocol.EndorsementDeposit)
{
throw new ValidationException("invalid endorsement contract update");
}
if (depostisUpdate.Delegate != endorsement.Metadata.Delegate ||
depostisUpdate.Change != endorsement.Metadata.Slots.Count * Protocol.EndorsementDeposit)
{
throw new ValidationException("invalid endorsement depostis update");
}
if (Cycle >= (Protocol.PreservedCycles + 2))
{
var rewardsUpdate = endorsement.Metadata.BalanceUpdates.FirstOrDefault(x => x is RewardsUpdate) as RewardsUpdate
?? throw new ValidationException("invalidendorsement rewards updates");
if (rewardsUpdate.Delegate != endorsement.Metadata.Delegate ||
rewardsUpdate.Change != GetEndorsementReward(endorsement.Metadata.Slots.Count, rawBlock.Header.Priority))
{
throw new ValidationException("invalid endorsement rewards update");
}
}
}
}
protected Task ValidateProposal(RawProposalContent proposal, RawBlock rawBlock)
{
if (!Cache.Accounts.DelegateExists(proposal.Source))
{
throw new ValidationException("invalid proposal sender");
}
if (proposal.Period != rawBlock.Metadata.LevelInfo.VotingPeriod)
{
throw new ValidationException("invalid proposal voting period");
}
return(Task.CompletedTask);
}
protected async Task ValidateReveal(RawRevealContent reveal, RawBlock rawBlock)
{
if (!await Cache.Accounts.ExistsAsync(reveal.Source))
{
throw new ValidationException("unknown source account");
}
ValidateFeeBalanceUpdates(
reveal.Metadata.BalanceUpdates,
rawBlock.Metadata.Baker,
reveal.Source,
reveal.Fee,
rawBlock.Metadata.LevelInfo.Cycle);
}
public async Task Init(Block block, RawBlock rawBlock)
{
if (block.Events.HasFlag(BlockEvents.Deactivations))
{
DeactivationLevel = rawBlock.Level;
Delegates = await Db.Delegates
.Include(x => x.DelegatedAccounts)
.Where(x => x.Staked && rawBlock.Metadata.Deactivated.Contains(x.Address))
.ToListAsync();
}
else if (block.Events.HasFlag(BlockEvents.CycleBegin))
{
DeactivationLevel = rawBlock.Level;
Delegates = await Db.Delegates
.Include(x => x.DelegatedAccounts)
.Where(x => x.Staked && x.DeactivationLevel == rawBlock.Level)
.ToListAsync();
}
}
protected async Task ValidateDelegation(RawDelegationContent delegation, RawBlock rawBlock)
{
if (!await Cache.Accounts.ExistsAsync(delegation.Source))
{
throw new ValidationException("unknown source account");
}
ValidateFeeBalanceUpdates(
delegation.Metadata.BalanceUpdates,
rawBlock.Metadata.Baker,
delegation.Source,
delegation.Fee,
rawBlock.Metadata.LevelInfo.Cycle);
if (delegation.Metadata.Result.Status == "applied" && delegation.Delegate != null)
{
if (delegation.Source != delegation.Delegate && !Cache.Accounts.DelegateExists(delegation.Delegate))
{
throw new ValidationException("unknown delegate account");
}
}
}
public async Task Init(Block block, RawBlock rawBlock)
{
if (block.Events.HasFlag(BlockEvents.CycleEnd))
{
var protocol = await Cache.Protocols.GetAsync(rawBlock.Protocol);
var cycle = (rawBlock.Level - 1) / protocol.BlocksPerCycle;
if (rawBlock.Metadata.BalanceUpdates.Skip(protocol.BlockReward0 > 0 ? 3 : 2)
.Any(x => x is FreezerUpdate fu && fu.Cycle != cycle - protocol.PreservedCycles))
{
RevelationPanlties = new List <RevelationPenaltyOperation>();
var missedBlocks = await Db.Blocks
.Include(x => x.Baker)
.Where(x => x.Level % protocol.BlocksPerCommitment == 0 &&
(x.Level - 1) / protocol.BlocksPerCycle == cycle - 1 &&
x.RevelationId == null)
.ToListAsync();
foreach (var missedBlock in missedBlocks)
{
Cache.Accounts.Add(missedBlock.Baker);
RevelationPanlties.Add(new RevelationPenaltyOperation
{
Id = Cache.AppState.NextOperationId(),
Baker = missedBlock.Baker,
Block = block,
Level = block.Level,
Timestamp = block.Timestamp,
MissedLevel = missedBlock.Level,
LostReward = missedBlock.Reward,
LostFees = missedBlock.Fees
});
}
}
}
}
public static async Task <RevelationPenaltyCommit> Apply(ProtocolHandler proto, Block block, RawBlock rawBlock)
{
var commit = new RevelationPenaltyCommit(proto);
await commit.Init(block, rawBlock);
await commit.Apply();
return(commit);
}
public async Task Init(Block block, RawBlock rawBlock)
{
if (block.Events.HasFlag(BlockEvents.VotingPeriodEnd))
{
Event = BlockEvents.VotingPeriodEnd;
Period = await Cache.Periods.CurrentAsync();
Period.Epoch ??= await Db.VotingEpoches.FirstOrDefaultAsync(x => x.Id == Period.EpochId);
}
else if (block.Events.HasFlag(BlockEvents.VotingPeriodBegin))
{
Event = BlockEvents.VotingPeriodBegin;
var protocol = await Cache.Protocols.GetAsync(rawBlock.Protocol);
var currentPeriod = await Cache.Periods.CurrentAsync();
var currentEpoch = await Db.VotingEpoches.FirstOrDefaultAsync(x => x.Id == currentPeriod.EpochId);
if (rawBlock.Metadata.VotingPeriod == "proposal")
{
#region start proposal period
Period = new ProposalPeriod
{
Code = currentPeriod.Code + 1,
Epoch = new VotingEpoch {
Level = rawBlock.Level
},
Kind = VotingPeriods.Proposal,
StartLevel = rawBlock.Level,
EndLevel = rawBlock.Level + protocol.BlocksPerVoting - 1
};
#endregion
}
else if (rawBlock.Metadata.VotingPeriod == "testing_vote")
{
#region start exploration period
var proposal = await Db.Proposals
.Where(x => x.ProposalPeriodId == currentPeriod.Id)
.OrderByDescending(x => x.Upvotes)
.FirstAsync();
Cache.Proposals.Add(proposal);
Period = new ExplorationPeriod
{
Code = currentPeriod.Code + 1,
Epoch = currentEpoch,
Kind = VotingPeriods.Exploration,
StartLevel = rawBlock.Level,
EndLevel = rawBlock.Level + protocol.BlocksPerVoting - 1,
Proposal = proposal,
ProposalId = proposal.Id
};
#endregion
}
else if (rawBlock.Metadata.VotingPeriod == "testing")
{
#region start testing period
Period = new TestingPeriod
{
Code = currentPeriod.Code + 1,
Epoch = currentEpoch,
Kind = VotingPeriods.Testing,
StartLevel = rawBlock.Level,
EndLevel = rawBlock.Level + protocol.BlocksPerVoting - 1,
Proposal = await Cache.Proposals.GetAsync((currentPeriod as ExplorationPeriod).ProposalId),
ProposalId = (currentPeriod as ExplorationPeriod).ProposalId
};
#endregion
}
else if (rawBlock.Metadata.VotingPeriod == "promotion_vote")
{
#region start promotion period
Period = new PromotionPeriod
{
Code = currentPeriod.Code + 1,
Epoch = currentEpoch,
Kind = VotingPeriods.Promotion,
StartLevel = rawBlock.Level,
EndLevel = rawBlock.Level + protocol.BlocksPerVoting - 1,
Proposal = await Cache.Proposals.GetAsync((currentPeriod as TestingPeriod).ProposalId),
ProposalId = (currentPeriod as TestingPeriod).ProposalId
};
#endregion
}
else
{
throw new Exception("invalid voting period");
}
if (!(Period is TestingPeriod))
{
var gracePeriod = GracePeriod.Init(block); // TODO: fix crutch
var delegates = await Db.Delegates
.AsNoTracking()
.Where(x => x.Staked && x.DeactivationLevel < gracePeriod && x.StakingBalance >= protocol.TokensPerRoll)
.ToListAsync();
var lastBlock = await Cache.Blocks.CurrentAsync();
lastBlock.Protocol ??= await Cache.Protocols.GetAsync(lastBlock.ProtoCode);
Rolls = new List <VotingSnapshot>(delegates.Count);
foreach (var delegat in delegates)
{
Rolls.Add(new VotingSnapshot
{
Level = lastBlock.Level,
Period = Period,
DelegateId = delegat.Id,
Rolls = (int)(delegat.StakingBalance / lastBlock.Protocol.TokensPerRoll)
});
}
if (Period is ExplorationPeriod exploration)
{
exploration.TotalStake = Rolls.Sum(x => x.Rolls);
}
else if (Period is PromotionPeriod promotion)
{
promotion.TotalStake = Rolls.Sum(x => x.Rolls);
}
}
}
}
public static async Task <FreezerCommit> Apply(ProtocolHandler proto, Block block, RawBlock rawBlock)
{
var commit = new FreezerCommit(proto);
await commit.Init(block, rawBlock);
await commit.Apply();
return(commit);
}
protected async Task ValidateTransaction(RawTransactionContent transaction, RawBlock rawBlock)
{
if (!await Cache.Accounts.ExistsAsync(transaction.Source))
{
throw new ValidationException("unknown source account");
}
ValidateFeeBalanceUpdates(
transaction.Metadata.BalanceUpdates,
rawBlock.Metadata.Baker,
transaction.Source,
transaction.Fee,
rawBlock.Metadata.LevelInfo.Cycle);
if (transaction.Metadata.Result.BalanceUpdates != null)
{
ValidateTransferBalanceUpdates(
transaction.Metadata.Result.BalanceUpdates,
transaction.Source,
transaction.Destination,
transaction.Amount,
transaction.Metadata.Result.PaidStorageSizeDiff * Protocol.ByteCost,
transaction.Metadata.Result.AllocatedDestinationContract ? Protocol.OriginationSize * Protocol.ByteCost : 0);
}
if (transaction.Metadata.InternalResults?.Count > 0)
{
foreach (var internalContent in transaction.Metadata.InternalResults.Where(x => x is RawInternalTransactionResult))
{
var internalTransaction = internalContent as RawInternalTransactionResult;
if (!await Cache.Accounts.ExistsAsync(internalTransaction.Source, AccountType.Contract))
{
throw new ValidationException("unknown source contract");
}
if (internalTransaction.Result.BalanceUpdates != null)
{
ValidateTransferBalanceUpdates(
internalTransaction.Result.BalanceUpdates,
internalTransaction.Source,
internalTransaction.Destination,
internalTransaction.Amount,
internalTransaction.Result.PaidStorageSizeDiff * Protocol.ByteCost,
internalTransaction.Result.AllocatedDestinationContract ? Protocol.OriginationSize * Protocol.ByteCost : 0,
transaction.Source);
}
}
foreach (var internalContent in transaction.Metadata.InternalResults.Where(x => x is RawInternalDelegationResult))
{
var internalDelegation = internalContent as RawInternalDelegationResult;
if (!await Cache.Accounts.ExistsAsync(internalDelegation.Source, AccountType.Contract))
{
throw new ValidationException("unknown source contract");
}
if (internalDelegation.Result.Status == "applied" && internalDelegation.Delegate != null)
{
if (!Cache.Accounts.DelegateExists(internalDelegation.Delegate))
{
throw new ValidationException("unknown delegate account");
}
}
}
foreach (var internalContent in transaction.Metadata.InternalResults.Where(x => x is RawInternalOriginationResult))
{
var internalOrigination = internalContent as RawInternalOriginationResult;
if (!await Cache.Accounts.ExistsAsync(internalOrigination.Source, AccountType.Contract))
{
throw new ValidationException("unknown source contract");
}
if (internalOrigination.Result.Status == "applied" && internalOrigination.Delegate != null)
{
if (!Cache.Accounts.DelegateExists(internalOrigination.Delegate))
{
throw new ValidationException("unknown delegate account");
}
}
if (internalOrigination.Result.BalanceUpdates != null)
{
ValidateTransferBalanceUpdates(
internalOrigination.Result.BalanceUpdates,
internalOrigination.Source,
internalOrigination.Result.OriginatedContracts[0],
internalOrigination.Balance,
internalOrigination.Result.PaidStorageSizeDiff * Protocol.ByteCost,
Protocol.OriginationSize * Protocol.ByteCost,
transaction.Source);
}
}
}
}