/// <summary>
/// Execute the step for a given <paramref name="messagingContext" />.
/// </summary>
/// <param name="messagingContext">Message used during the step execution.</param>
/// <returns></returns>
public async Task <StepResult> ExecuteAsync(MessagingContext messagingContext)
{
var pullRequest = messagingContext?.AS4Message?.FirstSignalMessage as PullRequest;
if (pullRequest == null)
{
throw new InvalidMessageException(
"The received message is not a PullRequest message, " +
"therefore no UserMessage can be selected to return to the sender");
}
(bool hasMatch, OutMessage match) = RetrieveUserMessageForPullRequest(pullRequest);
if (hasMatch)
{
// Retrieve the existing MessageBody and put that stream in the MessagingContext.
// The HttpReceiver processor will make sure that it gets serialized to the http response stream.
Stream messageBody = await match.RetrieveMessageBody(_messageBodyStore).ConfigureAwait(false);
messagingContext.ModifyContext(
new ReceivedMessage(messageBody, match.ContentType),
MessagingContextMode.Send);
messagingContext.SendingPMode = AS4XmlSerializer.FromString <SendingProcessingMode>(match.PMode);
return(StepResult.Success(messagingContext));
}
AS4Message pullRequestWarning = AS4Message.Create(Error.CreatePullRequestWarning(IdentifierFactory.Instance.Create()));
messagingContext.ModifyContext(pullRequestWarning);
return(StepResult.Success(messagingContext).AndStopExecution());
}
/// <summary>
/// Transform a given <see cref="ReceivedMessage"/> to a Canonical <see cref="MessagingContext"/> instance.
/// </summary>
/// <param name="message">Given message to transform.</param>
///
/// <returns></returns>
public async Task <MessagingContext> TransformAsync(ReceivedMessage message)
{
if (!(message is ReceivedEntityMessage))
{
throw new NotSupportedException(
$"Minder Deliver Transformer only supports transforming instances of type {typeof(ReceivedEntityMessage)}");
}
var as4Transformer = new AS4MessageTransformer();
MessagingContext context = await as4Transformer.TransformAsync(message);
var includeAttachments = true;
CollaborationInfo collaborationInfo = context.ReceivingPMode?.MessagePackaging?.CollaborationInfo;
if (collaborationInfo != null &&
(collaborationInfo.Action?.Equals("ACT_SIMPLE_ONEWAY_SIZE", StringComparison.OrdinalIgnoreCase) ?? false) &&
(collaborationInfo.Service?.Value?.Equals("SRV_SIMPLE_ONEWAY_SIZE", StringComparison.OrdinalIgnoreCase) ?? false))
{
includeAttachments = false;
}
DeliverMessageEnvelope deliverMessage = CreateDeliverMessageEnvelope(context.AS4Message, includeAttachments);
context.ModifyContext(deliverMessage);
return(context);
}
private async Task <MessagingContext> InsertReceivedAS4MessageAsync(MessagingContext messagingContext)
{
using (DatastoreContext context = _createDatastoreContext())
{
MessageExchangePattern messageExchangePattern =
messagingContext.Mode == MessagingContextMode.PullReceive
? MessageExchangePattern.Pull
: MessageExchangePattern.Push;
try
{
var service = new InMessageService(_config, new DatastoreRepository(context));
AS4Message as4Message = await service
.InsertAS4MessageAsync(
messagingContext.AS4Message,
messagingContext.ReceivedMessage,
messagingContext.SendingPMode,
messageExchangePattern,
_messageBodyStore)
.ConfigureAwait(false);
messagingContext.ModifyContext(as4Message);
await context.SaveChangesAsync().ConfigureAwait(false);
return(messagingContext);
}
catch (Exception ex)
{
return(new MessagingContext(ex));
}
}
}
/// <summary>
/// Send the <see cref="AS4Message" />
/// </summary>
/// <param name="messagingContext"></param>
/// <returns></returns>
public async Task <StepResult> ExecuteAsync(MessagingContext messagingContext)
{
if (messagingContext == null)
{
throw new ArgumentNullException(nameof(messagingContext));
}
if (messagingContext.ReceivedMessage == null && messagingContext.AS4Message == null)
{
throw new InvalidOperationException(
$"{nameof(SendAS4MessageStep)} requires a MessagingContext with a ReceivedStream or an AS4Message to correctly send the message");
}
if (messagingContext.ReceivedMessage == null && messagingContext.AS4Message.IsPullRequest == false)
{
throw new InvalidOperationException(
$"{nameof(SendAS4MessageStep)} expects a PullRequest AS4Message when the MessagingContext does not contain a ReceivedStream");
}
PushConfiguration pushConfig = GetPushConfiguration(messagingContext.SendingPMode, messagingContext.ReceivingPMode);
if (pushConfig?.Protocol?.Url == null)
{
throw new ConfigurationErrorsException(
"Message cannot be send because neither the Sending or Receiving PMode has a Protocol.Url child in a <PushConfiguration/> or <ResponseConfiguration/> element");
}
AS4Message as4Message = await DeserializeUnderlyingStreamIfPresentAsync(
messagingContext.ReceivedMessage,
otherwise : messagingContext.AS4Message);
try
{
string contentType = messagingContext.ReceivedMessage?.ContentType ?? messagingContext.AS4Message.ContentType;
HttpWebRequest request = CreateWebRequest(pushConfig, contentType.Replace("charset=\"utf-8\"", ""));
await WriteToHttpRequestStreamAsync(request, messagingContext).ConfigureAwait(false);
messagingContext.ModifyContext(as4Message);
return(await HandleHttpResponseAsync(request, messagingContext).ConfigureAwait(false));
}
catch
{
await UpdateRetryStatusForMessageAsync(messagingContext, SendResult.RetryableFail);
return(StepResult.Failed(messagingContext).AndStopExecution());
}
}
/// <summary>
/// It is only executed when the external message (received) is an AS4 UserMessage
/// </summary>
/// <param name="messagingContext"></param>
public async Task <StepResult> ExecuteAsync(MessagingContext messagingContext)
{
if (messagingContext == null)
{
throw new ArgumentNullException(nameof(messagingContext));
}
if (messagingContext.AS4Message == null)
{
throw new InvalidOperationException(
$"{nameof(CreateAS4ReceiptStep)} requires an AS4Message to create ebMS Receipts but no AS4Message is present in the MessagingContext");
}
bool receiptSigning = messagingContext.ReceivingPMode?.ReplyHandling?.ResponseSigning?.IsEnabled ?? false;
bool useNRRFormat = messagingContext.ReceivingPMode?.ReplyHandling?.ReceiptHandling?.UseNRRFormat ?? false;
if (!receiptSigning && useNRRFormat)
{
Logger.Error(
"Cannot create Non-Repudiation Receipts that aren\'t signed, please change either the "
+ $"ReceivingPMode {messagingContext.ReceivingPMode.Id} ReplyHandling.ReceiptHandling.UseNRRFormat or the ReplyHandling.ResponseSigning");
messagingContext.ErrorResult = new ErrorResult(
"Cannot create Non-Repudiation Receipts that aren't signed",
ErrorAlias.InvalidReceipt);
return(StepResult.Failed(messagingContext));
}
AS4Message receivedMessage = messagingContext.AS4Message;
AS4Message receiptMessage = AS4Message.Empty;
receiptMessage.SigningId = receivedMessage.SigningId;
foreach (UserMessage userMessage in receivedMessage.UserMessages)
{
Receipt receipt = CreateReferencedReceipt(userMessage, receivedMessage, messagingContext.ReceivingPMode);
receiptMessage.AddMessageUnit(receipt);
}
if (Logger.IsInfoEnabled && receiptMessage.MessageUnits.Any())
{
Logger.Info($"{messagingContext.LogTag} {receiptMessage.MessageUnits.Count()} Receipt message(s) has been created for received AS4 UserMessages");
}
messagingContext.ModifyContext(receiptMessage);
return(await StepResult.SuccessAsync(messagingContext));
}
/// <summary>
/// Transform a given <see cref="ReceivedMessage" /> to a Canonical <see cref="MessagingContext" /> instance.
/// </summary>
/// <param name="message">Given message to transform.</param>
/// <returns></returns>
public async Task <MessagingContext> TransformAsync(ReceivedMessage message)
{
if (message == null)
{
throw new ArgumentNullException(nameof(message));
}
if (!(message is ReceivedEntityMessage entityMessage) ||
!(entityMessage.Entity is MessageEntity me))
{
throw new InvalidDataException(
$"The message that must be transformed should be of type {nameof(ReceivedEntityMessage)} with a {nameof(MessageEntity)} as Entity");
}
MessagingContext context = await AS4MessageTransformer.TransformAsync(entityMessage);
AS4Message as4Message = context.AS4Message;
UserMessage toBeDeliveredUserMessage =
as4Message.UserMessages.FirstOrDefault(u => u.MessageId == me.EbmsMessageId);
if (toBeDeliveredUserMessage == null)
{
throw new InvalidOperationException(
$"No UserMessage {me.EbmsMessageId} can be found in stored record for delivering");
}
IEnumerable <Attachment> toBeUploadedAttachments =
as4Message.Attachments
.Where(a => a.MatchesAny(toBeDeliveredUserMessage.PayloadInfo))
.ToArray();
DeliverMessage deliverMessage =
CreateDeliverMessage(
toBeDeliveredUserMessage,
toBeUploadedAttachments,
context.ReceivingPMode);
Logger.Info($"(Deliver) Created DeliverMessage from (first) UserMessage {as4Message.FirstUserMessage.MessageId}");
var envelope = new DeliverMessageEnvelope(
message: deliverMessage,
contentType: "application/xml",
attachments: toBeUploadedAttachments);
context.ModifyContext(envelope);
return(context);
}
public void OverrideMessageWithAS4Message()
{
// Arrange
var context = new MessagingContext(AS4MessageWithEbmsMessageId(), MessagingContextMode.Unknown)
{
ReceivingPMode = new ReceivingProcessingMode(),
SendingPMode = new SendingProcessingMode()
};
// Act
context.ModifyContext(AS4MessageWithoutEbmsMessageId());
// Assert
Assert.Equal(AS4MessageWithoutEbmsMessageId(), context.AS4Message);
Assert.NotNull(context.SendingPMode);
Assert.NotNull(context.ReceivingPMode);
}
/// <summary>
/// Transform a given <see cref="ReceivedMessage"/> to a Canonical <see cref="MessagingContext"/> instance.
/// </summary>
/// <param name="message">Given message to transform.</param>
/// <returns></returns>
public async Task <MessagingContext> TransformAsync(ReceivedMessage message)
{
if (message == null)
{
throw new ArgumentNullException(nameof(message));
}
if (!(message is ReceivedEntityMessage receivedMessage))
{
throw new NotSupportedException(
$"Incoming message stream from {message.Origin} that must be transformed should be of type {nameof(ReceivedEntityMessage)}");
}
if (receivedMessage.Entity is ExceptionEntity ex)
{
string ebmsMessageId = IdentifierFactory.Instance.Create();
Error error = Error.FromErrorResult(
ebmsMessageId,
ex.EbmsRefToMessageId,
new ErrorResult(ex.Exception, ErrorAlias.Other));
NotifyMessageEnvelope notifyEnvelope =
await CreateNotifyMessageEnvelopeAsync(AS4Message.Create(error), ebmsMessageId, ex.GetType());
return(new MessagingContext(notifyEnvelope, receivedMessage));
}
if (receivedMessage.Entity is MessageEntity me)
{
var as4Transformer = new AS4MessageTransformer();
MessagingContext ctx = await as4Transformer.TransformAsync(receivedMessage);
// Normally the message shouldn't have any attachments
// but to be sure we should dispose them since we don't need attachments for notifying.
ctx.AS4Message.CloseAttachments();
NotifyMessageEnvelope notifyEnvelope =
await CreateNotifyMessageEnvelopeAsync(ctx.AS4Message, me.EbmsMessageId, me.GetType());
ctx.ModifyContext(notifyEnvelope, receivedMessage.Entity.Id);
return(ctx);
}
throw new InvalidOperationException();
}
/// <summary>
/// Start creating <see cref="Error"/>
/// </summary>
/// <param name="messagingContext"></param>
/// <returns></returns>
/// <exception cref="System.Exception">A delegate callback throws an exception.</exception>
public async Task <StepResult> ExecuteAsync(MessagingContext messagingContext)
{
if (messagingContext == null)
{
throw new ArgumentNullException(nameof(messagingContext));
}
if (messagingContext.AS4Message == null)
{
throw new InvalidOperationException(
$"{nameof(CreateAS4ErrorStep)} requires an AS4Message to create an Error but no AS4Message is present in the MessagingContext");
}
if (messagingContext.AS4Message.IsEmpty && messagingContext?.ErrorResult == null)
{
Logger.Warn("Skip creating AS4 Error because AS4Message and ErrorResult is empty in the MessagingContext");
return(await StepResult.SuccessAsync(messagingContext));
}
ErrorResult errorResult = messagingContext.ErrorResult;
AS4Message errorMessage = CreateAS4ErrorWithPossibleMultihop(received: messagingContext.AS4Message,
occurredError: errorResult);
if (errorResult != null)
{
Logger.Error($"AS4 Error(s) created with {errorResult.Code.GetString()} {errorResult.Alias}, {errorResult.Description}");
await InsertInExceptionsForNowExceptionedInMessageAsync(
messagingContext.AS4Message.SignalMessages,
messagingContext.ErrorResult,
messagingContext.ReceivingPMode);
}
messagingContext.ModifyContext(errorMessage);
if (Logger.IsInfoEnabled && errorMessage.MessageUnits.Any())
{
Logger.Info(
$"{messagingContext.LogTag} {errorMessage.MessageUnits.Count()} Error(s) has been created for received AS4 UserMessages");
}
return(await StepResult.SuccessAsync(messagingContext));
}
/// <summary>
/// Handle the given <paramref name="response" />, but delegate to the next handler if you can't.
/// </summary>
/// <param name="response"></param>
/// <returns></returns>
public async Task <StepResult> HandleResponse(IAS4Response response)
{
if (response == null)
{
throw new ArgumentNullException(nameof(response));
}
MessagingContext request = response.OriginalRequest;
if (request?.AS4Message?.IsPullRequest == true)
{
bool pullRequestWasPiggyBacked =
request.AS4Message.SignalMessages.Any(s => !(s is PullRequest));
if (pullRequestWasPiggyBacked)
{
using (DatastoreContext ctx = _createContext())
{
SendResult result =
response.StatusCode == HttpStatusCode.Accepted ||
response.StatusCode == HttpStatusCode.OK
? SendResult.Success
: SendResult.RetryableFail;
var service = new PiggyBackingService(ctx);
service.ResetSignalMessagesToBePiggyBacked(request.AS4Message.SignalMessages, result);
await ctx.SaveChangesAsync().ConfigureAwait(false);
}
}
bool isEmptyChannelWarning =
(response.ReceivedAS4Message?.FirstSignalMessage as Error)?.IsPullRequestWarning == true;
if (isEmptyChannelWarning)
{
request.ModifyContext(response.ReceivedAS4Message, MessagingContextMode.Send);
return(StepResult.Success(response.OriginalRequest).AndStopExecution());
}
}
return(await _nextHandler.HandleResponse(response));
}
private static MessagingContext CreateNotifyMessage <T>(string ebmsMessageId, Entity entity)
{
var envelope = new NotifyMessageEnvelope(
new MessageInfo
{
MessageId = ebmsMessageId,
RefToMessageId = ebmsMessageId
},
Status.Delivered,
new byte[0],
"content-type",
typeof(T));
var ctx = new MessagingContext(
new ReceivedEntityMessage(entity),
MessagingContextMode.Notify)
{
SendingPMode = new SendingProcessingMode
{
ReceiptHandling =
{
NotifyMethod = new Method {
Type = "FILE"
}
},
ErrorHandling =
{
NotifyMethod = new Method {
Type = "FILE"
}
},
ExceptionHandling =
{
NotifyMethod = new Method {
Type = "FILE"
}
}
}
};
ctx.ModifyContext(envelope);
return(ctx);
}
public void OverrideMessageWithDeliverMessage()
{
// Arrange
var filledNotify = new DeliverMessageEnvelope(new MessageInfo(), new byte[0], "type");
var context = new MessagingContext(filledNotify)
{
SendingPMode = new SendingProcessingMode(),
ReceivingPMode = new ReceivingProcessingMode()
};
var anonymousDeliver = new DeliverMessageEnvelope(new MessageInfo(), new byte[0], "type");
// Act
context.ModifyContext(anonymousDeliver);
// Assert
Assert.Equal(anonymousDeliver, context.DeliverMessage);
Assert.NotNull(context.SendingPMode);
Assert.NotNull(context.ReceivingPMode);
}
public void OverrideMessageWithNotifyMessage()
{
// Arrange
var filledNotify = new NotifyMessageEnvelope(new AS4.Model.Notify.MessageInfo(), Status.Delivered, new byte[0], "type", typeof(InMessage));
var context = new MessagingContext(filledNotify)
{
SendingPMode = new SendingProcessingMode(),
ReceivingPMode = new ReceivingProcessingMode()
};
var anonymousNotify = new NotifyMessageEnvelope(null, default(Status), null, null, typeof(InMessage));
// Act
context.ModifyContext(anonymousNotify);
// Assert
Assert.Equal(anonymousNotify, context.NotifyMessage);
Assert.NotNull(context.SendingPMode);
Assert.NotNull(context.ReceivingPMode);
}
protected MessagingContext CreateReceivedMessagingContext(AS4Message as4Message, ReceivingProcessingMode receivingPMode)
{
var stream = new MemoryStream();
SerializerProvider
.Default
.Get(as4Message.ContentType)
.Serialize(as4Message, stream);
stream.Position = 0;
var ctx = new MessagingContext(
new ReceivedMessage(stream, as4Message.ContentType),
MessagingContextMode.Receive)
{
ReceivingPMode = receivingPMode
};
ctx.ModifyContext(as4Message);
return(ctx);
}
/// <summary>
/// Execute the step for a given <paramref name="messagingContext"/>.
/// </summary>
/// <param name="messagingContext">Message used during the step execution.</param>
/// <returns></returns>
public async Task <StepResult> ExecuteAsync(MessagingContext messagingContext)
{
if (messagingContext?.AS4Message == null)
{
throw new InvalidOperationException(
$"{nameof(UpdateReceivedAS4MessageBodyStep)} requires an AS4Message to update but no AS4Message is present in the MessagingContext");
}
Logger.Trace("Updating the received message body...");
using (DatastoreContext datastoreContext = _createDatastoreContext())
{
var repository = new DatastoreRepository(datastoreContext);
var service = new InMessageService(_configuration, repository);
service.UpdateAS4MessageForMessageHandling(
messagingContext.AS4Message,
messagingContext.SendingPMode,
messagingContext.ReceivingPMode,
_messageBodyStore);
await datastoreContext.SaveChangesAsync().ConfigureAwait(false);
}
if (messagingContext.ReceivedMessageMustBeForwarded)
{
// When the Message has to be forwarded, the remaining Steps must not be executed.
// The MSH must answer with a HTTP Accepted status-code, so an empty context must be returned.
messagingContext.ModifyContext(AS4Message.Empty);
Logger.Info(
"Stops execution to return empty SOAP envelope to the orignal sender. " +
"This happens when the message must be forwarded");
return(StepResult.Success(messagingContext).AndStopExecution());
}
return(StepResult.Success(messagingContext));
}
/// <summary>
/// Transform a given <see cref="ReceivedMessage"/> to a Canonical <see cref="MessagingContext"/> instance.
/// </summary>
/// <param name="message">Given message to transform.</param>
/// <returns></returns>
public async Task <MessagingContext> TransformAsync(ReceivedMessage message)
{
var receivedEntityMessage = message as ReceivedEntityMessage;
if (receivedEntityMessage == null)
{
throw new NotSupportedException(
$"Minder Notify Transformer only supports transforming instances of type {typeof(ReceivedEntityMessage)}");
}
var as4Transformer = new AS4MessageTransformer();
MessagingContext context = await as4Transformer.TransformAsync(message);
NotifyMessageEnvelope notifyMessage =
await CreateNotifyMessageEnvelope(
context.AS4Message,
context.AS4Message.GetPrimaryMessageId(),
receivedEntityMessage.Entity.GetType());
context.ModifyContext(notifyMessage);
return(context);
}
/// <summary>
/// Start Mapping from a <see cref="SubmitMessage"/>
/// to an <see cref="AS4Message"/>
/// </summary>
/// <param name="messagingContext"></param>
/// <returns></returns>
public async Task <StepResult> ExecuteAsync(MessagingContext messagingContext)
{
if (messagingContext == null)
{
throw new ArgumentNullException(nameof(messagingContext));
}
SubmitMessage submitMessage = messagingContext.SubmitMessage;
if (submitMessage == null)
{
throw new InvalidOperationException(
$"{nameof(CreateAS4MessageStep)} requires a SubmitMessage to create an AS4Message from but no AS4Message is present in the MessagingContext");
}
if (messagingContext.SendingPMode == null)
{
Logger.Debug("No SendingPMode was found, only use information from SubmitMessage to create AS4 UserMessage");
}
ValidateSubmitMessage(submitMessage);
Logger.Trace("Create UserMessage for SubmitMessage");
UserMessage userMessage = SubmitMessageMap.CreateUserMessage(submitMessage, submitMessage.PMode);
Logger.Info($"{messagingContext.LogTag} UserMessage with Id \"{userMessage.MessageId}\" created from SubmitMessage");
AS4Message as4Message = AS4Message.Create(userMessage, messagingContext.SendingPMode);
IEnumerable <Attachment> attachments =
await RetrieveAttachmentsForAS4MessageAsync(submitMessage.Payloads)
.ConfigureAwait(false);
as4Message.AddAttachments(attachments);
messagingContext.ModifyContext(as4Message);
return(StepResult.Success(messagingContext));
}
