/// <summary>
/// Constructs their DID doc in a pairwise relationship from a connection record.
/// </summary>
/// <param name="connection">Connectio record.</param>
/// <returns>DID Doc</returns>
public static DidDoc TheirDidDoc(this ConnectionRecord connection)
{
return(new DidDoc
{
Keys = new List <DidDocKey>
{
new DidDocKey
{
Id = $"{connection.MyDid}#keys-1",
Type = DefaultKeyType,
Controller = connection.TheirDid,
PublicKeyBase58 = connection.TheirVk
}
},
Services = new List <IDidDocServiceEndpoint>
{
new IndyAgentDidDocService
{
Id = $"{connection.MyDid};indy",
ServiceEndpoint = connection.Endpoint.Verkey,
RecipientKeys = connection.TheirVk != null ? new[] { connection.TheirVk } : new string[0],
RoutingKeys = connection.Endpoint?.Verkey != null ? new[] { connection.Endpoint.Verkey } : new string[0]
}
}
});
}
/// <summary>
/// Constructs my DID doc in a pairwise relationship from a connection record and the agents provisioning record.
/// </summary>
/// <param name="connection">Connection record.</param>
/// <param name="provisioningRecord">Provisioning record.</param>
/// <returns>DID Doc</returns>
public static DidDoc MyDidDoc(this ConnectionRecord connection, ProvisioningRecord provisioningRecord)
{
var doc = new DidDoc
{
Keys = new List <DidDocKey>
{
new DidDocKey
{
Id = $"{connection.MyDid}#keys-1",
Type = DefaultKeyType,
Controller = connection.MyDid,
PublicKeyBase58 = connection.MyVk
}
}
};
if (!string.IsNullOrEmpty(provisioningRecord.Endpoint.Uri))
{
doc.Services = new List <IDidDocServiceEndpoint>
{
new IndyAgentDidDocService
{
Id = $"{connection.MyDid};indy",
ServiceEndpoint = provisioningRecord.Endpoint.Uri,
RecipientKeys = connection.MyVk != null ? new[] { connection.MyVk } : new string[0],
RoutingKeys = provisioningRecord.Endpoint?.Verkey != null ? new[] { provisioningRecord.Endpoint.Verkey } : new string[0]
}
};
}
return(doc);
}
/// <inheritdoc />
public virtual async Task <(ConnectionInvitationMessage, ConnectionRecord)> CreateInvitationAsync(IAgentContext agentContext,
InviteConfiguration config = null)
{
var connectionId = !string.IsNullOrEmpty(config?.ConnectionId)
? config.ConnectionId
: Guid.NewGuid().ToString();
config = config ?? new InviteConfiguration();
Logger.LogInformation(LoggingEvents.CreateInvitation, "ConnectionId {0}", connectionId);
var connectionKey = await Crypto.CreateKeyAsync(agentContext.Wallet, "{}");
var connection = new ConnectionRecord {
Id = connectionId
};
connection.SetTag(TagConstants.ConnectionKey, connectionKey);
if (config.AutoAcceptConnection)
{
connection.SetTag(TagConstants.AutoAcceptConnection, "true");
}
connection.MultiPartyInvitation = config.MultiPartyInvitation;
if (!config.MultiPartyInvitation)
{
connection.Alias = config.TheirAlias;
if (!string.IsNullOrEmpty(config.TheirAlias.Name))
{
connection.SetTag(TagConstants.Alias, config.TheirAlias.Name);
}
}
foreach (var tag in config.Tags)
{
connection.SetTag(tag.Key, tag.Value);
}
var provisioning = await ProvisioningService.GetProvisioningAsync(agentContext.Wallet);
if (string.IsNullOrEmpty(provisioning.Endpoint.Uri))
{
throw new AriesFrameworkException(ErrorCode.RecordInInvalidState, "Provision record has no endpoint information specified");
}
await RecordService.AddAsync(agentContext.Wallet, connection);
return(new ConnectionInvitationMessage
{
ServiceEndpoint = provisioning.Endpoint.Uri,
RoutingKeys = provisioning.Endpoint.Verkey != null ? provisioning.Endpoint.Verkey : null,
RecipientKeys = new[] { connectionKey },
Label = config.MyAlias.Name ?? provisioning.Owner.Name,
ImageUrl = config.MyAlias.ImageUrl ?? provisioning.Owner.ImageUrl
}, connection);
}
/// <inheritdoc />
public virtual async Task <string> ProcessResponseAsync(IAgentContext agentContext, ConnectionResponseMessage response, ConnectionRecord connection)
{
Logger.LogTrace(LoggingEvents.AcceptConnectionResponse, "To {1}", connection.MyDid);
//TODO throw exception or a problem report if the connection request features a did doc that has no indy agent did doc convention featured
//i.e there is no way for this agent to respond to messages. And or no keys specified
var connectionObj = await SignatureUtils.UnpackAndVerifyAsync <Connection>(response.ConnectionSig);
await Did.StoreTheirDidAsync(agentContext.Wallet,
new { did = connectionObj.Did, verkey = connectionObj.DidDoc.Keys[0].PublicKeyBase58 }.ToJson());
connection.TheirDid = connectionObj.Did;
connection.TheirVk = connectionObj.DidDoc.Keys[0].PublicKeyBase58;
connection.SetTag(TagConstants.LastThreadId, response.GetThreadId());
if (connectionObj.DidDoc.Services[0] is IndyAgentDidDocService service)
{
connection.Endpoint = new AgentEndpoint(service.ServiceEndpoint, null, service.RoutingKeys != null && service.RoutingKeys.Count > 0 ? service.RoutingKeys.ToArray() : null);
}
await connection.TriggerAsync(ConnectionTrigger.Response);
await RecordService.UpdateAsync(agentContext.Wallet, connection);
EventAggregator.Publish(new ServiceMessageProcessingEvent
{
RecordId = connection.Id,
MessageType = response.Type,
ThreadId = response.GetThreadId()
});
return(connection.Id);
}
/// <inheritdoc />
public virtual async Task <string> ProcessRequestAsync(IAgentContext agentContext, ConnectionRequestMessage request, ConnectionRecord connection)
{
Logger.LogInformation(LoggingEvents.ProcessConnectionRequest, "Did {0}", request.Connection.Did);
var my = await Did.CreateAndStoreMyDidAsync(agentContext.Wallet, "{}");
//TODO throw exception or a problem report if the connection request features a did doc that has no indy agent did doc convention featured
//i.e there is no way for this agent to respond to messages. And or no keys specified
await Did.StoreTheirDidAsync(agentContext.Wallet, new { did = request.Connection.Did, verkey = request.Connection.DidDoc.Keys[0].PublicKeyBase58 }.ToJson());
if (request.Connection.DidDoc.Services != null &&
request.Connection.DidDoc.Services.Count > 0 &&
request.Connection.DidDoc.Services[0] is IndyAgentDidDocService service)
{
connection.Endpoint = new AgentEndpoint(service.ServiceEndpoint, null, service.RoutingKeys != null && service.RoutingKeys.Count > 0 ? service.RoutingKeys.ToArray() : null);
}
connection.TheirDid = request.Connection.Did;
connection.TheirVk = request.Connection.DidDoc.Keys[0].PublicKeyBase58;
connection.MyDid = my.Did;
connection.MyVk = my.VerKey;
connection.SetTag(TagConstants.LastThreadId, request.Id);
if (connection.Alias == null)
{
connection.Alias = new ConnectionAlias();
}
if (!string.IsNullOrEmpty(request.Label) && string.IsNullOrEmpty(connection.Alias.Name))
{
connection.Alias.Name = request.Label;
}
if (!string.IsNullOrEmpty(request.ImageUrl) && string.IsNullOrEmpty(connection.Alias.ImageUrl))
{
connection.Alias.ImageUrl = request.ImageUrl;
}
if (!connection.MultiPartyInvitation)
{
await connection.TriggerAsync(ConnectionTrigger.InvitationAccept);
await RecordService.UpdateAsync(agentContext.Wallet, connection);
EventAggregator.Publish(new ServiceMessageProcessingEvent
{
RecordId = connection.Id,
MessageType = request.Type,
ThreadId = request.GetThreadId()
});
return(connection.Id);
}
var newConnection = connection.DeepCopy();
newConnection.Id = Guid.NewGuid().ToString();
newConnection.MultiPartyInvitation = false;
await newConnection.TriggerAsync(ConnectionTrigger.InvitationAccept);
await RecordService.AddAsync(agentContext.Wallet, newConnection);
EventAggregator.Publish(new ServiceMessageProcessingEvent
{
RecordId = newConnection.Id,
MessageType = request.Type,
ThreadId = request.GetThreadId()
});
return(newConnection.Id);
}
/// <inheritdoc />
public virtual async Task <(ConnectionRequestMessage, ConnectionRecord)> CreateRequestAsync(IAgentContext agentContext, ConnectionInvitationMessage invitation)
{
Logger.LogInformation(LoggingEvents.AcceptInvitation, "Key {0}, Endpoint {1}",
invitation.RecipientKeys[0], invitation.ServiceEndpoint);
var my = await Did.CreateAndStoreMyDidAsync(agentContext.Wallet, "{}");
var connection = new ConnectionRecord
{
Endpoint = new AgentEndpoint(invitation.ServiceEndpoint, null, invitation.RoutingKeys != null && invitation.RoutingKeys.Count != 0 ? invitation.RoutingKeys.ToArray() : null),
MyDid = my.Did,
MyVk = my.VerKey,
Id = Guid.NewGuid().ToString().ToLowerInvariant()
};
connection.SetTag("InvitationKey", invitation.RecipientKeys.First());
if (!string.IsNullOrEmpty(invitation.Label) || !string.IsNullOrEmpty(invitation.ImageUrl))
{
connection.Alias = new ConnectionAlias
{
Name = invitation.Label,
ImageUrl = invitation.ImageUrl
};
if (string.IsNullOrEmpty(invitation.Label))
{
connection.SetTag(TagConstants.Alias, invitation.Label);
}
}
await connection.TriggerAsync(ConnectionTrigger.InvitationAccept);
var provisioning = await ProvisioningService.GetProvisioningAsync(agentContext.Wallet);
var request = new ConnectionRequestMessage
{
Connection = new Connection
{
Did = connection.MyDid,
DidDoc = connection.MyDidDoc(provisioning)
},
Label = provisioning.Owner?.Name,
ImageUrl = provisioning.Owner?.ImageUrl
};
// also set image as attachment
if (provisioning.Owner?.ImageUrl != null)
{
request.AddAttachment(new Attachment
{
Nickname = "profile-image",
Data = new AttachmentContent {
Links = new[] { provisioning.Owner.ImageUrl }
}
});
}
await RecordService.AddAsync(agentContext.Wallet, connection);
return(request, connection);
}