/// <summary>
/// Creates a non-repudiation AS4 receipt that references a given <paramref name="includedUserMessage"/>.
/// </summary>
/// <param name="receiptMessageId"></param>
/// <param name="includedUserMessage">The <see cref="Core.UserMessage"/> for which this receipt is created.</param>
/// <param name="userMessageSecurityHeader">The security header to retrieve the signed references from to include in the receipt.</param>
/// <param name="userMessageSendViaMultiHop">
/// Whether or not the user message was send in a multi-hop fashion or not.
/// Setting this on <c>true</c> will result in a receipt with the referencing user message included in a RoutingInput element.
/// </param>
/// <exception cref="ArgumentNullException">The <paramref name="includedUserMessage"/> should not be <c>null</c>.</exception>
public static Receipt CreateFor(
string receiptMessageId,
UserMessage includedUserMessage,
SecurityHeader userMessageSecurityHeader,
bool userMessageSendViaMultiHop = false)
{
if (includedUserMessage == null)
{
throw new ArgumentNullException(nameof(includedUserMessage));
}
if (userMessageSecurityHeader != null)
{
IEnumerable <CryptoReference> signedReferences = userMessageSecurityHeader.GetReferences();
if (signedReferences.Any())
{
var nonRepudiation =
new NonRepudiationInformation(
signedReferences.Select(Reference.CreateFromReferenceElement));
return(userMessageSendViaMultiHop.ThenMaybe(UserMessageMap.ConvertToRouting(includedUserMessage))
.Select(routing => new Receipt(receiptMessageId, includedUserMessage?.MessageId, nonRepudiation, routing))
.GetOrElse(() => new Receipt(receiptMessageId, includedUserMessage?.MessageId, nonRepudiation, routedUserMessage: null)));
}
}
return(CreateFor(receiptMessageId, includedUserMessage, userMessageSendViaMultiHop));
}
/// <summary>
/// Prevents a default instance of the <see cref="AS4Message"/> class from being created.
/// </summary>
/// <param name="serializeAsMultiHop">if set to <c>true</c> [serialize as multi hop].</param>
private AS4Message(bool serializeAsMultiHop = false)
{
_serializeAsMultiHop = serializeAsMultiHop;
_attachmens = new List <Attachment>();
_messageUnits = new List <MessageUnit>();
ContentType = "application/soap+xml";
SigningId = new SigningId();
SecurityHeader = new SecurityHeader();
}
/// <summary>
/// Digitally signs the AS4Message using the given <paramref name="signatureConfiguration"/>
/// </summary>
/// <param name="signatureConfiguration"></param>
public void Sign(CalculateSignatureConfig signatureConfiguration)
{
if (signatureConfiguration == null)
{
throw new ArgumentNullException(nameof(signatureConfiguration));
}
SignStrategy signingStrategy = SignStrategy.ForAS4Message(this, signatureConfiguration);
SecurityHeader.Sign(signingStrategy);
}
/// <summary>
/// Decrypt the AS4 Message using the specified <paramref name="certificate"/>.
/// </summary>
/// <param name="certificate"></param>
public void Decrypt(X509Certificate2 certificate)
{
if (certificate == null)
{
throw new ArgumentNullException(nameof(certificate));
}
var decryptor =
DecryptionStrategyBuilder
.Create(this)
.WithCertificate(certificate)
.Build();
SecurityHeader.Decrypt(decryptor);
}
/// <summary>
/// Encrypts the AS4 Message using the specified <paramref name="keyEncryptionConfig"/>
/// and <paramref name="dataEncryptionConfig"/>
/// </summary>
/// <param name="keyEncryptionConfig"></param>
/// <param name="dataEncryptionConfig"></param>
public void Encrypt(KeyEncryptionConfiguration keyEncryptionConfig, DataEncryptionConfiguration dataEncryptionConfig)
{
if (keyEncryptionConfig == null)
{
throw new ArgumentNullException(nameof(keyEncryptionConfig));
}
if (dataEncryptionConfig == null)
{
throw new ArgumentNullException(nameof(dataEncryptionConfig));
}
var encryptor =
EncryptionStrategyBuilder
.Create(this, keyEncryptionConfig)
.WithDataEncryptionConfiguration(dataEncryptionConfig)
.Build();
SecurityHeader.Encrypt(encryptor);
}
/// <summary>
/// Creates message with a SOAP envelope.
/// </summary>
/// <param name="soapEnvelope">The SOAP envelope.</param>
/// <param name="contentType">Type of the content.</param>
/// <param name="securityHeader"></param>
/// <param name="messagingHeader"></param>
/// <param name="bodyElement"></param>
///<remarks>This method should only be used when creating an AS4 Message via deserialization.</remarks>
/// <returns></returns>
internal static async Task <AS4Message> CreateAsync(
XmlDocument soapEnvelope,
string contentType,
SecurityHeader securityHeader,
Xml.Messaging messagingHeader,
Xml.Body1 bodyElement)
{
if (soapEnvelope == null)
{
throw new ArgumentNullException(nameof(soapEnvelope));
}
if (String.IsNullOrWhiteSpace(contentType))
{
throw new ArgumentException(@"ContentType must be defined.", nameof(contentType));
}
if (securityHeader == null)
{
throw new ArgumentNullException(nameof(securityHeader));
}
if (messagingHeader == null)
{
throw new ArgumentNullException(nameof(messagingHeader));
}
if (bodyElement == null)
{
throw new ArgumentNullException(nameof(bodyElement));
}
var result = new AS4Message
{
EnvelopeDocument = soapEnvelope,
ContentType = contentType,
SecurityHeader = securityHeader
};
bool?IsMultihopAttributePresent()
{
const string messagingXPath = "/*[local-name()='Envelope']/*[local-name()='Header']/*[local-name()='Messaging']";
if (result.EnvelopeDocument?.SelectSingleNode(messagingXPath) is XmlElement messagingNode)
{
string role = messagingNode.GetAttribute("role", Constants.Namespaces.Soap12);
return(!string.IsNullOrWhiteSpace(role) && role.Equals(Constants.Namespaces.EbmsNextMsh));
}
return(null);
}
result.__hasMultiHopAttribute = IsMultihopAttributePresent();
string bodySecurityId = null;
if (bodyElement.AnyAttr != null)
{
bodySecurityId = bodyElement.AnyAttr.FirstOrDefault(a => a.LocalName == "Id")?.Value;
}
result.SigningId = new SigningId(messagingHeader.SecurityId, bodySecurityId);
result._messageUnits.AddRange(
await SoapEnvelopeSerializer.GetMessageUnitsFromMessagingHeader(soapEnvelope, messagingHeader));
return(result);
}