/// <summary>
/// Constructor expecting resources needed to perform transmission using AS2. All task required to be done once for
/// all requests using this instance is done here.
/// </summary>
public As2MessageSender(
X509Certificate certificate,
SMimeMessageFactory sMimeMessageFactory,
ITimestampProvider timestampProvider,
Func <HyperwaySecureMimeContext> secureMimeContext)
{
this.sMimeMessageFactory = sMimeMessageFactory;
this.timestampProvider = timestampProvider;
this.secureMimeContext = secureMimeContext;
// Establishes our AS2 System Identifier based upon the contents of the CN= field of the certificate
this.fromIdentifier = CertificateUtils.ExtractCommonName(certificate);
}
public void Persist(
ITransmissionRequest transmissionRequest,
ITransmissionResponse transmissionResponse,
Trace root)
{
Trace span = root.Child();
span.Record(Annotations.ServiceName("persist statistics"));
span.Record(Annotations.ClientSend());
try
{
RawStatisticsBuilder builder = new RawStatisticsBuilder()
.AccessPointIdentifier(this.ourAccessPointIdentifier).Direction(Direction.OUT)
.DocumentType(transmissionResponse.GetHeader().DocumentType)
.Sender(transmissionResponse.GetHeader().Sender)
.Receiver(transmissionResponse.GetHeader().Receiver)
.Profile(transmissionResponse.GetHeader().Process)
.Date(transmissionResponse.GetTimestamp()); // Time stamp of reception of the receipt
// If we know the CN name of the destination AP, supply that
// as the channel id otherwise use the protocol name
if (transmissionRequest.GetEndpoint().Certificate != null)
{
String accessPointIdentifierValue =
CertificateUtils.ExtractCommonName(transmissionRequest.GetEndpoint().Certificate);
builder.Channel(new ChannelId(accessPointIdentifierValue));
}
else
{
String protocolName = transmissionRequest.GetEndpoint().TransportProfile.Identifier;
builder.Channel(new ChannelId(protocolName));
}
DefaultRawStatistics rawStatistics = builder.Build();
this.rawStatisticsRepository.Persist(rawStatistics);
}
catch (Exception ex)
{
span.Record(Annotations.Tag("exception", ex.Message));
Logger.Error($"Persisting DefaultRawStatistics about oubound transmission failed : {ex.Message}", ex);
}
finally
{
span.Record(Annotations.ClientRecv());
}
}
protected HttpPost PrepareHttpRequest()
{
Trace span = this.root.Child();
span.Record(Annotations.ServiceName("request"));
span.Record(Annotations.ClientSend());
try
{
HttpPost httpPost;
// Create the body part of the MIME message containing our content to be transmitted.
MimeEntity mimeBodyPart = MimeMessageHelper.CreateMimeBodyPart(
this.transmissionRequest.GetPayload(),
"application/xml");
// Digest method to use.
SMimeDigestMethod digestMethod =
SMimeDigestMethod.FindByTransportProfile(
this.transmissionRequest.GetEndpoint().TransportProfile);
// Create a complete S/MIME message using the body part containing our content as the
// signed part of the S/MIME message.
MimeMessage signedMimeMessage =
this.sMimeMessageFactory.CreateSignedMimeMessage(mimeBodyPart, digestMethod);
var signedMultipart = (signedMimeMessage.Body as MultipartSigned);
Debug.Assert(signedMultipart != null, nameof(signedMultipart) + " != null");
this.outboundMic = MimeMessageHelper.CalculateMic(signedMultipart[0], digestMethod);
span.Record(Annotations.Tag("mic", this.outboundMic.ToString()));
span.Record(Annotations.Tag("endpoint url", this.transmissionRequest.GetEndpoint().Address.ToString()));
// Initiate POST request
httpPost = new HttpPost(this.transmissionRequest.GetEndpoint().Address);
foreach (var header in signedMimeMessage.Headers)
{
span.Record(Annotations.Tag(header.Field, header.Value));
httpPost.AddHeader(header.Field, header.Value.Replace("\r\n\t", string.Empty));
}
signedMimeMessage.Headers.Clear();
this.transmissionIdentifier = TransmissionIdentifier.FromHeader(httpPost.Headers[As2Header.MessageId]);
// Write content to OutputStream without headers.
using (var m = new MemoryStream())
{
signedMultipart.WriteTo(m);
httpPost.Entity = m.ToBuffer();
}
var contentType = signedMultipart.Headers[HeaderId.ContentType];
// Set all headers specific to AS2 (not MIME).
httpPost.Host = "skynet.sediva.it";
httpPost.Headers.Add("Content-Type", this.NormalizeHeaderValue(contentType));
httpPost.Headers.Add(As2Header.As2From, this.fromIdentifier);
httpPost.Headers.Add(
As2Header.As2To,
CertificateUtils.ExtractCommonName(this.transmissionRequest.GetEndpoint().Certificate));
httpPost.Headers.Add(As2Header.DispositionNotificationTo, "*****@*****.**");
httpPost.Headers.Add(
As2Header.DispositionNotificationOptions,
As2DispositionNotificationOptions.GetDefault(digestMethod).ToString());
httpPost.Headers.Add(As2Header.As2Version, As2Header.Version);
httpPost.Headers.Add(As2Header.Subject, "AS2 message from HYPERWAY");
httpPost.Headers.Add(As2Header.Date, As2DateUtil.Rfc822.GetFormat(DateTime.Now));
return(httpPost);
}
catch (Exception)
{
throw new HyperwayTransmissionException(
"Unable to stream S/MIME message into byte array output stream");
}
finally
{
span.Record(Annotations.ClientRecv());
}
}
public DefaultStatisticsService(IRawStatisticsRepository rawStatisticsRepository, X509Certificate certificate)
{
this.rawStatisticsRepository = rawStatisticsRepository;
this.ourAccessPointIdentifier = new AccessPointIdentifier(CertificateUtils.ExtractCommonName(certificate));
}