/// <inheritdoc />
public virtual async Task <string> AcceptInvitationAsync(Wallet wallet, ConnectionInvitationMessage invitation)
{
Logger.LogInformation(LoggingEvents.AcceptInvitation, "Key {0}, Endpoint {1}",
invitation.ConnectionKey, invitation.Endpoint.Uri);
var my = await Did.CreateAndStoreMyDidAsync(wallet, "{}");
var connection = new ConnectionRecord
{
Endpoint = invitation.Endpoint,
MyDid = my.Did,
MyVk = my.VerKey,
ConnectionId = Guid.NewGuid().ToString().ToLowerInvariant()
};
connection.Tags.Add(TagConstants.MyDid, my.Did);
if (!string.IsNullOrEmpty(invitation.Name) || !string.IsNullOrEmpty(invitation.ImageUrl))
{
connection.Alias = new ConnectionAlias
{
Name = invitation.Name,
ImageUrl = invitation.ImageUrl
};
if (string.IsNullOrEmpty(invitation.Name))
{
connection.Tags.Add(TagConstants.Alias, invitation.Name);
}
}
await connection.TriggerAsync(ConnectionTrigger.InvitationAccept);
await RecordService.AddAsync(wallet, connection);
var provisioning = await ProvisioningService.GetProvisioningAsync(wallet);
var connectionDetails = new ConnectionDetails
{
Did = my.Did,
Verkey = my.VerKey,
Endpoint = provisioning.Endpoint
};
var request = await MessageSerializer.PackSealedAsync <ConnectionRequestMessage>(connectionDetails, wallet,
my.VerKey, invitation.ConnectionKey);
request.Key = invitation.ConnectionKey;
request.Type = MessageUtils.FormatKeyMessageType(invitation.ConnectionKey, MessageTypes.ConnectionRequest);
var forwardMessage = new ForwardToKeyEnvelopeMessage
{
Type = MessageUtils.FormatKeyMessageType(invitation.ConnectionKey, MessageTypes.ForwardToKey),
Content = request.ToJson()
};
await RouterService.ForwardAsync(forwardMessage, invitation.Endpoint);
return(connection.GetId());
}
public async Task AnonPrepareMessageRoutingAsync()
{
var message = new ConnectionInvitationMessage {
RecipientKeys = new[] { "123" }
};
var recipient = await Did.CreateAndStoreMyDidAsync(_wallet, "{}");
var routingRecipient = await Did.CreateAndStoreMyDidAsync(_wallet, "{}");
var encrypted = await _messagingService.PrepareAsync(_wallet, message, recipient.VerKey, new [] { routingRecipient.VerKey });
var unpackRes = await CryptoUtils.UnpackAsync(_wallet, encrypted);
var unpackMsg = JsonConvert.DeserializeObject <ForwardMessage>(unpackRes.Message);
Assert.NotNull(unpackMsg);
Assert.True(string.IsNullOrEmpty(unpackRes.SenderVerkey));
Assert.True(unpackRes.RecipientVerkey == routingRecipient.VerKey);
Assert.Equal(recipient.VerKey, unpackMsg.To);
var unpackRes1 = await CryptoUtils.UnpackAsync(_wallet, unpackMsg.Message.GetUTF8Bytes());
var unpackMsg1 = JsonConvert.DeserializeObject <ConnectionInvitationMessage>(unpackRes1.Message);
Assert.NotNull(unpackMsg1);
Assert.True(string.IsNullOrEmpty(unpackRes1.SenderVerkey));
Assert.True(unpackRes1.RecipientVerkey == recipient.VerKey);
Assert.Equal("123", unpackMsg1.RecipientKeys[0]);
}
private async Task CreateConnection(IAgentContext context, ConnectionInvitationMessage invite)
{
var logger = App.Container.Resolve <ILogger <AcceptInviteViewModel> >();
var fmt = new JsonSerializerSettings {
Formatting = Formatting.Indented
};
logger.LogTrace($"context = {context.ToJson(fmt)}");
logger.LogTrace($"_invite = {_invite.ToJson(fmt)}");
var provisioningRecord = await _provisioningService.GetProvisioningAsync(context.Wallet);
logger.LogTrace($"provisioningRecord = {provisioningRecord.ToJson(new JsonSerializerSettings{Formatting = Formatting.Indented})}");
var isEndpointUriAbsent = provisioningRecord.Endpoint.Uri == null;
var(msg, rec) = await _connectionService.CreateRequestAsync(context, _invite);
msg.Label = DeviceInfo.Name + " osma agent";
logger.LogTrace($"Connection Message (msg) being Sent = {msg.ToJson(fmt)}");
logger.LogTrace($"ConnectionRecord (rec) being saved = {rec.ToJson(fmt)}");
var rsp = await _messageService.SendAsync(context.Wallet, msg, rec, _invite.RecipientKeys.First(), isEndpointUriAbsent);
logger.LogTrace($"rsp = {rsp.ToJson(fmt)}");
if (isEndpointUriAbsent)
{
var response = rsp.GetMessage <ConnectionResponseMessage>();
logger.LogTrace($"response = {response.ToJson(fmt)}");
await _connectionService.ProcessResponseAsync(context, response, rec);
}
}
public async Task AuthPrepareMessageNoRoutingAsync()
{
var message = new ConnectionInvitationMessage {
RecipientKeys = new[] { "123" }
};
var recipient = await Did.CreateAndStoreMyDidAsync(_wallet, "{}");
var sender = await Did.CreateAndStoreMyDidAsync(_wallet, "{}");
var agentContext = new AgentContext()
{
Wallet = _wallet
};
var encrypted = await CryptoUtils.PrepareAsync(agentContext, message, recipient.VerKey, new string[0], sender.VerKey);
var unpackRes = await CryptoUtils.UnpackAsync(_wallet, encrypted);
var unpackMsg = JsonConvert.DeserializeObject <ConnectionInvitationMessage>(unpackRes.Message);
Assert.NotNull(unpackMsg);
Assert.True(unpackRes.SenderVerkey == sender.VerKey);
Assert.True(unpackRes.RecipientVerkey == recipient.VerKey);
Assert.Equal("123", unpackMsg.RecipientKeys[0]);
}
public async Task ScanInvite()
{
ConnectionInvitationMessage invitation = null;
bool isEmulated = false; //ONLY FOR TESTING
if (!isEmulated)
{
var expectedFormat = ZXing.BarcodeFormat.QR_CODE;
var opts = new ZXing.Mobile.MobileBarcodeScanningOptions
{
PossibleFormats = new List <ZXing.BarcodeFormat> {
expectedFormat
}
};
var scanner = new ZXing.Mobile.MobileBarcodeScanner();
var result = await scanner.Scan(opts);
if (result == null)
{
return;
}
try
{
invitation = await MessageDecoder.ParseMessageAsync(result.Text) as ConnectionInvitationMessage
?? throw new Exception("Unknown message type");
}
catch (Exception)
{
DialogService.Alert("Invalid invitation!");
return;
}
}
else
{
invitation = new ConnectionInvitationMessage()
{
Id = "453b0d8e-50d0-4a18-bf44-7d7369a0c31f",
Label = "Verifier",
Type = "did:sov:BzCbsNYhMrjHiqZDTUASHg;spec/connections/1.0/invitation",
ImageUrl = "",
RecipientKeys = new List <string>()
{
"DPqj1fdVajDYdVgeT36NUSoVghjkapaHpVUdwbL1z6ye"
},
RoutingKeys = new List <string>()
{
"9RUPb4jPtR2S1P9yVy85ugwiywqqzDfxRrDZnKCTQCtH"
},
ServiceEndpoint = "http://mylocalhost:5002"
};
}
Device.BeginInvokeOnMainThread(async() =>
{
await NavigationService.NavigateToAsync <AcceptInviteViewModel>(invitation, NavigationType.Modal);
});
}
public async Task PrepareMessageForMultipleRoutingHops()
{
var message = new ConnectionInvitationMessage {
RecipientKeys = new[] { "123" }
};
var json = message.ToJson();
var messageBack = json.ToObject <ConnectionInvitationMessage>();
var keys = new
{
Sender = await Did.CreateAndStoreMyDidAsync(_wallet, "{}"),
Recipient = await Did.CreateAndStoreMyDidAsync(_wallet, "{}"),
RoutingOne = await Did.CreateAndStoreMyDidAsync(_wallet, "{}"),
RoutingTwo = await Did.CreateAndStoreMyDidAsync(_wallet, "{}")
};
// Prepare the message for transport by packing the agent message with multiple forward messages
var transportMessage = await CryptoUtils.PrepareAsync(
wallet : _wallet,
message : message,
recipientKey : keys.Recipient.VerKey,
routingKeys : new[] { keys.RoutingOne.VerKey, keys.RoutingTwo.VerKey },
senderKey : keys.Sender.VerKey);
// Unpack and assert outter forward message
var outterResult = await CryptoUtils.UnpackAsync(_wallet, transportMessage);
var outterMessage = outterResult.Message.ToObject <ForwardMessage>();
Assert.Equal(keys.RoutingTwo.VerKey, outterResult.RecipientVerkey);
Assert.Null(outterResult.SenderVerkey);
Assert.NotNull(outterMessage);
Assert.Equal(outterMessage.To, keys.RoutingOne.VerKey);
// Unpack and test inner forward message
var innerResult = await CryptoUtils.UnpackAsync(_wallet, outterMessage.Message.ToJson().GetUTF8Bytes());
var innerMessage = innerResult.Message.ToObject <ForwardMessage>();
Assert.Equal(keys.RoutingOne.VerKey, innerResult.RecipientVerkey);
Assert.Null(innerResult.SenderVerkey);
Assert.NotNull(innerMessage);
Assert.Equal(innerMessage.To, keys.Recipient.VerKey);
// Unpack and test inner content message
var contentResult = await CryptoUtils.UnpackAsync(_wallet, innerMessage.Message.ToJson().GetUTF8Bytes());
var contentMessage = contentResult.Message.ToObject <ConnectionInvitationMessage>();
Assert.Equal(keys.Recipient.VerKey, contentResult.RecipientVerkey);
Assert.Equal(keys.Sender.VerKey, contentResult.SenderVerkey);
Assert.NotNull(contentMessage);
Assert.NotEmpty(contentMessage.RecipientKeys);
Assert.Single(contentMessage.RecipientKeys);
Assert.Equal("123", contentMessage.RecipientKeys.First());
}
public void CanEncodeMessageToUrl()
{
var message = new ConnectionInvitationMessage();
var exampleUrl = "http://example.com";
var encodedMessage = MessageUtils.EncodeMessageToUrlFormat(exampleUrl, message);
Uri.IsWellFormedUriString(encodedMessage, UriKind.Absolute);
}
public override Task InitializeAsync(object navigationData)
{
if (navigationData is ConnectionInvitationMessage invite)
{
InviteTitle = $"{invite.Label}";
InviterUrl = invite.ImageUrl;
InviteContents = AppResources.ConnectionInviteMessage;
_invite = invite;
}
return(base.InitializeAsync(navigationData));
}
public override Task InitializeAsync(object navigationData)
{
if (navigationData is ConnectionInvitationMessage invite)
{
InviteTitle = $"Trust {invite.Label}?";
InviterUrl = invite.ImageUrl;
InviteContents = $"{invite.Label} would like to establish a pairwise DID connection with you. This will allow secure communication between you and {invite.Label}.";
_invite = invite;
}
return(base.InitializeAsync(navigationData));
}
public CreateInvitationResponse
(
Guid aRequestId,
ConnectionInvitationMessage aConnectionInvitationMessage,
ConnectionRecord aConnectionRecord,
string aInvitationUrl
) : base(aRequestId)
{
ConnectionInvitationMessage = aConnectionInvitationMessage;
ConnectionRecord = aConnectionRecord;
InvitationUrl = aInvitationUrl;
}
public void CanConvertUnsecuredMessage()
{
var expected = new ConnectionInvitationMessage {
ConnectionKey = "123"
};
var json = JsonConvert.SerializeObject(expected);
var actual = JsonConvert.DeserializeObject <IUnsecuredMessage>(json);
Assert.IsType <ConnectionInvitationMessage>(actual);
Assert.Equal("123", ((ConnectionInvitationMessage)actual).ConnectionKey);
}
public override Task InitializeAsync(object navigationData)
{
if (navigationData is ConnectionInvitationMessage invitation)
{
InvitationTitle = $"Connect to {invitation.Label}?";
InvitationImageUrl = invitation.ImageUrl;
InvitationContents = $"{invitation.Label} has invited you to connect?";
InvitationLabel = invitation.Label;
_invitation = invitation;
}
return(base.InitializeAsync(navigationData));
}
internal static void ValidateReceiveInvitationResponse
(
ReceiveInvitationRequest aReceiveInvitationRequest,
ReceiveInvitationResponse aReceiveInvitationRespone
)
{
aReceiveInvitationRespone.CorrelationId.Should().Be(aReceiveInvitationRequest.CorrelationId);
ConnectionInvitationMessage connectionInvitationMessage = aReceiveInvitationRespone.ConnectionInvitationMessage;
connectionInvitationMessage.Should().NotBeNull();
// check Other properties here
}
public async Task PackAuth()
{
var message = new ConnectionInvitationMessage {
RecipientKeys = new[] { "123" }
}.ToByteArray();
var my = await Did.CreateAndStoreMyDidAsync(_wallet, "{}");
var anotherMy = await Did.CreateAndStoreMyDidAsync(_wallet, "{}");
var packed = await CryptoUtils.PackAsync(_wallet, anotherMy.VerKey, message, my.VerKey);
Assert.NotNull(packed);
}
/// <inheritdoc />
public (string sessionId, ConnectionInvitationMessage connectionInvitationMessage, bool awaitableConnection) ReadTransactionUrl(string invitationUrl)
{
string sessionId = null;
ConnectionInvitationMessage invitationMessage = null;
bool awaitableConnection = false;
Uri uri = null;
try
{
uri = new Uri(invitationUrl);
}
catch (Exception)
{
return(null, null, false);
}
try
{
if (uri.Query.StartsWith("?t_o="))
{
var arguments = uri.Query
.Substring(1) // Remove '?'
.Split('&')
.Select(q => q.Split('='))
.ToDictionary(q => q.FirstOrDefault(), q => q.Skip(1).FirstOrDefault());
sessionId = arguments["t_o"];
invitationMessage = arguments["c_i"].FromBase64().ToObject <ConnectionInvitationMessage>();
try
{
awaitableConnection = bool.Parse(arguments["wait"]);
}
catch (Exception)
{
awaitableConnection = false;
}
return(sessionId, invitationMessage, awaitableConnection);
}
}
catch (Exception e)
{
Debug.WriteLine(e);
}
return(sessionId, invitationMessage, awaitableConnection);
}
public async Task <ReceiveInvitationResponse> Handle
(
ReceiveInvitationRequest aReceiveInvitationRequest,
CancellationToken aCancellationToken
)
{
ConnectionInvitationMessage connectionInvitationMessage =
MessageUtils
.DecodeMessageFromUrlFormat <ConnectionInvitationMessage>(aReceiveInvitationRequest.InvitationDetails);
var response =
new ReceiveInvitationResponse(aReceiveInvitationRequest.CorrelationId, connectionInvitationMessage);
return(await Task.Run(() => response));
}
private async Task CreateConnection(IAgentContext context, ConnectionInvitationMessage invite)
{
var provisioningRecord = await _provisioningService.GetProvisioningAsync(context.Wallet);
var isEndpointUriAbsent = provisioningRecord.Endpoint.Uri == null;
var(msg, rec) = await _connectionService.CreateRequestAsync(context, _invitation);
var rsp = await _messageService.SendReceiveAsync <ConnectionResponseMessage>(context.Wallet, msg, rec);
if (isEndpointUriAbsent)
{
await _connectionService.ProcessResponseAsync(context, rsp, rec);
}
}
public async Task PackAnon()
{
var message = new ConnectionInvitationMessage()
{
ConnectionKey = "123"
}.ToByteArray();
var my = await Did.CreateAndStoreMyDidAsync(_wallet, "{}");
var anotherMy = await Did.CreateAndStoreMyDidAsync(_wallet, "{}");
var packed = await CryptoUtils.PackAsync(_wallet, anotherMy.VerKey, null, message);
Assert.NotNull(packed);
}
public void ThreadFromThrowsExceptionOnAlreadyThreadedMessage()
{
var message = new ConnectionRequestMessage();
var threadId = Guid.NewGuid().ToString();
message.AddDecorator(new ThreadDecorator()
{
ThreadId = threadId
}, "thread");
var inboundMessage = new ConnectionInvitationMessage();
var ex = Assert.Throws <AriesFrameworkException>(() => message.ThreadFrom(inboundMessage));
Assert.True(ex.ErrorCode == ErrorCode.InvalidMessage);
}
public async Task UnpackToCustomType()
{
var message = new ConnectionInvitationMessage {
RecipientKeys = new [] { "123" }
};
var my = await Did.CreateAndStoreMyDidAsync(_wallet, "{}");
var anotherMy = await Did.CreateAndStoreMyDidAsync(_wallet, "{}");
var packed = await CryptoUtils.PackAsync(_wallet, anotherMy.VerKey, message, null);
var unpack = await CryptoUtils.UnpackAsync <ConnectionInvitationMessage>(_wallet, packed);
Assert.NotNull(unpack);
Assert.Equal("123", unpack.RecipientKeys[0]);
}
/// <inheritdoc />
public override object ReadJson(JsonReader reader, Type objectType, object existingValue,
JsonSerializer serializer)
{
IUnsecuredMessage message;
var item = JObject.Load(reader);
switch (item["@type"].ToObject <string>())
{
case MessageTypes.ConnectionInvitation:
message = new ConnectionInvitationMessage();
break;
default: throw new TypeLoadException("Unsupported serialization type.");
}
serializer.Populate(item.CreateReader(), message);
return(message);
}
public async Task PackAndUnpackAnon()
{
var message = new ConnectionInvitationMessage {
RecipientKeys = new[] { "123" }
};
var my = await Did.CreateAndStoreMyDidAsync(_wallet, "{}");
var anotherMy = await Did.CreateAndStoreMyDidAsync(_wallet, "{}");
var packed = await CryptoUtils.PackAsync(_wallet, anotherMy.VerKey, message, null);
var unpack = await CryptoUtils.UnpackAsync(_wallet, packed);
Assert.NotNull(unpack);
Assert.Null(unpack.SenderVerkey);
Assert.NotNull(unpack.RecipientVerkey);
Assert.Equal(unpack.RecipientVerkey, anotherMy.VerKey);
}
public async Task <AcceptInvitationResponse> Handle
(
AcceptInvitationRequest aAcceptInvitationRequest,
CancellationToken aCancellationToken
)
{
IAgentContext agentContext = await AgentProvider.GetContextAsync();
ConnectionInvitationMessage connectionInvitationMessage =
MessageUtils
.DecodeMessageFromUrlFormat <ConnectionInvitationMessage>(aAcceptInvitationRequest.InvitationDetails);
(ConnectionRequestMessage connectionRequestMessage, ConnectionRecord connectionRecord)
= await ConnectionService.CreateRequestAsync(agentContext, connectionInvitationMessage);
await MessageService.SendAsync(agentContext, connectionRequestMessage, connectionRecord);
var response = new AcceptInvitationResponse(aAcceptInvitationRequest.CorrelationId);
return(response);
}
public async Task PackAndUnpackAuth()
{
var message = new ConnectionInvitationMessage {
RecipientKeys = new[] { "123" }
}.ToByteArray();
var my = await Did.CreateAndStoreMyDidAsync(_wallet, "{}");
var anotherMy = await Did.CreateAndStoreMyDidAsync(_wallet, "{}");
var packed = await CryptoUtils.PackAsync(_wallet, anotherMy.VerKey, message, my.VerKey);
var unpack = await CryptoUtils.UnpackAsync(_wallet, packed);
var jObject = JObject.Parse(unpack.Message);
Assert.NotNull(unpack);
Assert.NotNull(unpack.SenderVerkey);
Assert.NotNull(unpack.RecipientVerkey);
Assert.Equal(unpack.RecipientVerkey, anotherMy.VerKey);
Assert.Equal(unpack.SenderVerkey, my.VerKey);
Assert.Equal(MessageTypes.ConnectionInvitation, jObject["@type"].ToObject <string>());
}
private async Task <bool> CreateConnection(IAgentContext context, ConnectionInvitationMessage invite)
{
var provisioningRecord = await _provisioningService.GetProvisioningAsync(context.Wallet);
if (provisioningRecord.Endpoint.Uri != null)
{
try
{
var(msg, rec) = await _connectionService.CreateRequestAsync(context, _invite);
await _messageService.SendAsync(context.Wallet, msg, rec, _invite.RecipientKeys.First());
return(true);
}
catch (Exception) //TODO more granular error protection
{
return(false);
}
}
else
{
try
{
var(msg, rec) = await _connectionService.CreateRequestAsync(context, _invite);
var rsp = await _messageService.SendAsync(context.Wallet, msg, rec, _invite.RecipientKeys.First(), true);
await _connectionService.ProcessResponseAsync(context, rsp.GetMessage <ConnectionResponseMessage>(), rec);
return(true);
}
catch (Exception) //TODO more granular error protection
{
return(false);
}
}
}
private async Task CreateConnection(IAgentContext context, ConnectionInvitationMessage invite)
{
var provisioningRecord = await _provisioningService.GetProvisioningAsync(context.Wallet);
var isEndpointUriAbsent = provisioningRecord.Endpoint.Uri == null;
var(msg, connection) = await _connectionService.CreateRequestAsync(context, invite);
msg.Label = msg.Label == null ? "OsmaAgent" : msg.Label;
var recipientKey = invite.RecipientKeys.First()
?? connection.TheirVk
?? throw new AriesFrameworkException(
ErrorCode.A2AMessageTransmissionError, "Cannot find encryption key");
var routingKeys = connection.Endpoint?.Verkey != null ? new[] { connection.Endpoint.Verkey } : new string[0];
if (connection.Endpoint?.Uri == null)
{
throw new AriesFrameworkException(ErrorCode.A2AMessageTransmissionError, "Cannot send to connection that does not have endpoint information specified");
}
if (isEndpointUriAbsent)
{
var rsp = await _messageService.SendReceiveAsync(context.Wallet, msg, recipientKey, connection.Endpoint.Uri, routingKeys, connection.MyVk);
var unpackedRsp = (UnpackedMessageContext)rsp;
await _connectionService.ProcessResponseAsync(context, unpackedRsp.GetMessage <ConnectionResponseMessage>(), connection);
}
else
{
await _messageService.SendAsync(context.Wallet, msg, recipientKey, connection.Endpoint.Uri, routingKeys, connection.MyVk);
}
}
/// <summary>
/// Encodes the invitation to a base64 string which can be presented to the user as QR code or a deep link Url
/// </summary>
/// <returns>The invitation.</returns>
/// <param name="invitation">Invitation.</param>
public string EncodeInvitation(ConnectionInvitationMessage invitation)
{
return(Convert.ToBase64String(Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(invitation))));
}
public Task <(ConnectionRequestMessage, ConnectionRecord)> CreateRequestAsync(IAgentContext agentContext, ConnectionInvitationMessage offer)
{
throw new System.NotImplementedException();
}
public async Task <ConnectionRecord> ProcessInvitationAsync(IAgentContext agentContext, ConnectionInvitationMessage offer)
{
throw new System.NotImplementedException();
}
public ReceiveInvitationResponse(Guid aCorrelationId, ConnectionInvitationMessage aConnectionInvitationMessage)
: base(aCorrelationId)
{
ConnectionInvitationMessage = aConnectionInvitationMessage;
}