private async Task <CredentialRecord> UpdateValuesAsync(string credentialId, CredentialIssueMessage credentialIssue, IAgentContext agentContext)
{
var credentialAttachment = credentialIssue.Credentials.FirstOrDefault(x => x.Id == "libindy-cred-0")
?? throw new ArgumentException("Credential attachment not found");
var credentialJson = credentialAttachment.Data.Base64.GetBytesFromBase64().GetUTF8String();
var jcred = JObject.Parse(credentialJson);
var values = jcred["values"].ToObject <Dictionary <string, AttributeValue> >();
var credential = await _credentialService.GetAsync(agentContext, credentialId);
credential.CredentialAttributesValues = values.Select(x => new CredentialPreviewAttribute {
Name = x.Key, Value = x.Value.Raw, MimeType = CredentialMimeTypes.TextMimeType
}).ToList();
await _recordService.UpdateAsync(agentContext.Wallet, credential);
return(credential);
}
public async Task <(CredentialIssueMessage, CredentialRecord)> CreateCredentialAsync(IAgentContext agentContext, string credentialId, IEnumerable <CredentialPreviewAttribute> values)
{
var credential = await GetAsync(agentContext, credentialId);
if (credential.State != CredentialState.Requested)
{
throw new AgentFrameworkException(ErrorCode.RecordInInvalidState,
$"Credential state was invalid. Expected '{CredentialState.Requested}', found '{credential.State}'");
}
if (values != null && values.Any())
{
credential.CredentialAttributesValues = values;
}
var definitionRecord =
await SchemaService.GetCredentialDefinitionAsync(agentContext.Wallet, credential.CredentialDefinitionId);
var connection = await ConnectionService.GetAsync(agentContext, credential.ConnectionId);
var provisioning = await ProvisioningService.GetProvisioningAsync(agentContext.Wallet);
if (connection.State != ConnectionState.Connected)
{
throw new AgentFrameworkException(ErrorCode.RecordInInvalidState,
$"Connection state was invalid. Expected '{ConnectionState.Connected}', found '{connection.State}'");
}
string revocationRegistryId = null;
BlobStorageReader tailsReader = null;
if (definitionRecord.SupportsRevocation)
{
var revocationRecordSearch = await RecordService.SearchAsync <RevocationRegistryRecord>(
agentContext.Wallet, SearchQuery.Equal(nameof(RevocationRegistryRecord.CredentialDefinitionId), definitionRecord.Id), null, 5);
var revocationRecord = revocationRecordSearch.Single(); // TODO: Credential definition can have multiple revocation registries
revocationRegistryId = revocationRecord.Id;
tailsReader = await TailsService.OpenTailsAsync(revocationRecord.TailsFile);
}
var issuedCredential = await AnonCreds.IssuerCreateCredentialAsync(agentContext.Wallet, credential.OfferJson,
credential.RequestJson, CredentialUtils.FormatCredentialValues(credential.CredentialAttributesValues), revocationRegistryId, tailsReader);
if (definitionRecord.SupportsRevocation)
{
var paymentInfo = await PaymentService.GetTransactionCostAsync(agentContext, TransactionTypes.REVOC_REG_ENTRY);
await LedgerService.SendRevocationRegistryEntryAsync(
wallet : agentContext.Wallet,
pool : await agentContext.Pool,
issuerDid : provisioning.IssuerDid,
revocationRegistryDefinitionId : revocationRegistryId,
revocationDefinitionType : "CL_ACCUM",
value : issuedCredential.RevocRegDeltaJson,
paymentInfo : paymentInfo);
credential.CredentialRevocationId = issuedCredential.RevocId;
if (paymentInfo != null)
{
await RecordService.UpdateAsync(agentContext.Wallet, paymentInfo.PaymentAddress);
}
}
await credential.TriggerAsync(CredentialTrigger.Issue);
await RecordService.UpdateAsync(agentContext.Wallet, credential);
var threadId = credential.GetTag(TagConstants.LastThreadId);
var credentialMsg = new CredentialIssueMessage
{
Credentials = new []
{
new Attachment
{
Id = "libindy-cred-0",
MimeType = CredentialMimeTypes.ApplicationJsonMimeType,
Data = new AttachmentContent
{
Base64 = issuedCredential.CredentialJson
.GetUTF8Bytes()
.ToBase64String()
}
}
}
};
credentialMsg.ThreadFrom(threadId);
return(credentialMsg, credential);
}
public async Task <string> ProcessCredentialAsync(IAgentContext agentContext, CredentialIssueMessage credential, ConnectionRecord connection)
{
var credentialAttachment = credential.Credentials.FirstOrDefault(x => x.Id == "libindy-cred-0")
?? throw new ArgumentException("Credential attachment not found");
var credentialJson = credentialAttachment.Data.Base64.GetBytesFromBase64().GetUTF8String();
var credentialJobj = JObject.Parse(credentialJson);
var definitionId = credentialJobj["cred_def_id"].ToObject <string>();
var revRegId = credentialJobj["rev_reg_id"]?.ToObject <string>();
var credentialRecord = await this.GetByThreadIdAsync(agentContext, credential.GetThreadId());
if (credentialRecord.State != CredentialState.Requested)
{
throw new AgentFrameworkException(ErrorCode.RecordInInvalidState,
$"Credential state was invalid. Expected '{CredentialState.Requested}', found '{credentialRecord.State}'");
}
var credentialDefinition = await LedgerService.LookupDefinitionAsync(await agentContext.Pool, definitionId);
string revocationRegistryDefinitionJson = null;
if (!string.IsNullOrEmpty(revRegId))
{
// If credential supports revocation, lookup registry definition
var revocationRegistry =
await LedgerService.LookupRevocationRegistryDefinitionAsync(await agentContext.Pool, revRegId);
revocationRegistryDefinitionJson = revocationRegistry.ObjectJson;
}
var credentialId = await AnonCreds.ProverStoreCredentialAsync(
wallet : agentContext.Wallet,
credId : null,
credReqMetadataJson : credentialRecord.CredentialRequestMetadataJson,
credJson : credentialJson,
credDefJson : credentialDefinition.ObjectJson,
revRegDefJson : revocationRegistryDefinitionJson);
credentialRecord.CredentialId = credentialId;
credentialRecord.CredentialAttributesValues = null;
await credentialRecord.TriggerAsync(CredentialTrigger.Issue);
await RecordService.UpdateAsync(agentContext.Wallet, credentialRecord);
EventAggregator.Publish(new ServiceMessageProcessingEvent
{
RecordId = credentialRecord.Id,
MessageType = credential.Type,
ThreadId = credential.GetThreadId()
});
return(credentialRecord.Id);
}
