public async Task <ProofRecord> ProcessProposalAsync(IAgentContext agentContext, ProposePresentationMessage proposePresentationMessage, ConnectionRecord connection)
{
// save in wallet
var proofProposal = new ProofProposal
{
Comment = proposePresentationMessage.Comment,
ProposedAttributes = proposePresentationMessage.PresentationPreviewMessage.ProposedAttributes.ToList <ProposedAttribute>(),
ProposedPredicates = proposePresentationMessage.PresentationPreviewMessage.ProposedPredicates.ToList <ProposedPredicate>()
};
var proofRecord = new ProofRecord
{
Id = Guid.NewGuid().ToString(),
ProposalJson = proofProposal.ToJson(),
ConnectionId = connection?.Id,
State = ProofState.Proposed
};
proofRecord.SetTag(TagConstants.LastThreadId, proposePresentationMessage.GetThreadId());
proofRecord.SetTag(TagConstants.Role, TagConstants.Requestor);
await RecordService.AddAsync(agentContext.Wallet, proofRecord);
EventAggregator.Publish(new ServiceMessageProcessingEvent
{
RecordId = proofRecord.Id,
MessageType = proposePresentationMessage.Type,
ThreadId = proposePresentationMessage.GetThreadId()
});
return(proofRecord);
}
private void CheckProofProposalParameters(ProofProposal proofProposal)
{
if (proofProposal.ProposedAttributes.Count > 1)
{
var attrList = proofProposal.ProposedAttributes;
var referents = new Dictionary <string, ProposedAttribute>();
// Check if all attributes that share referent have same requirements
for (int i = 0; i < attrList.Count; i++)
{
var attr = attrList[i];
if (referents.ContainsKey(attr.Referent))
{
if (referents[attr.Referent].IssuerDid != attr.IssuerDid ||
referents[attr.Referent].SchemaId != attr.SchemaId ||
referents[attr.Referent].CredentialDefinitionId != attr.CredentialDefinitionId)
{
throw new AriesFrameworkException(ErrorCode.InvalidParameterFormat, "All attributes that share a referent must have identical requirements");
}
else
{
continue;
}
}
else
{
referents.Add(attr.Referent, attr);
}
}
}
if (proofProposal.ProposedPredicates.Count > 1)
{
var predList = proofProposal.ProposedPredicates;
var referents = new Dictionary <string, ProposedPredicate>();
for (int i = 0; i < predList.Count; i++)
{
var pred = predList[i];
if (referents.ContainsKey(pred.Referent))
{
throw new AriesFrameworkException(ErrorCode.InvalidParameterFormat, "Proposed Predicates must all have unique referents");
}
else
{
referents.Add(pred.Referent, pred);
}
}
}
}
/// <inheritdoc />
public async Task <(ProposePresentationMessage, ProofRecord)> CreateProposalAsync(IAgentContext agentContext, ProofProposal proofProposal, string connectionId)
{
Logger.LogInformation(LoggingEvents.CreateProofRequest, "ConnectionId {0}", connectionId);
if (proofProposal == null)
{
throw new ArgumentNullException(nameof(proofProposal), "You must provide a presentation preview");;
}
if (connectionId != null)
{
var connection = await ConnectionService.GetAsync(agentContext, connectionId);
if (connection.State != ConnectionState.Connected)
{
throw new AriesFrameworkException(ErrorCode.RecordInInvalidState,
$"Connection state was invalid. Expected '{ConnectionState.Connected}', found '{connection.State}'");
}
}
this.CheckProofProposalParameters(proofProposal);
var threadId = Guid.NewGuid().ToString();
var proofRecord = new ProofRecord
{
Id = Guid.NewGuid().ToString(),
ConnectionId = connectionId,
ProposalJson = proofProposal.ToJson(),
State = ProofState.Proposed
};
proofRecord.SetTag(TagConstants.Role, TagConstants.Holder);
proofRecord.SetTag(TagConstants.LastThreadId, threadId);
await RecordService.AddAsync(agentContext.Wallet, proofRecord);
var message = new ProposePresentationMessage
{
Id = threadId,
Comment = proofProposal.Comment,
PresentationPreviewMessage = new PresentationPreviewMessage()
{
ProposedAttributes = proofProposal.ProposedAttributes.ToArray(),
ProposedPredicates = proofProposal.ProposedPredicates.ToArray()
}
};
message.ThreadFrom(threadId);
return(message, proofRecord);
}