public void AfterReceiveReply(ref System.ServiceModel.Channels.Message reply, object correlationState)
{
MessageBuffer msgBuffer = reply.CreateBufferedCopy(int.MaxValue);
Message msg = msgBuffer.CreateMessage();
soapMessages.SoapResponse = ConvertMessageToString(msg);
reply = msgBuffer.CreateMessage();
msgBuffer.Close();
// Verify signature on soap response
try
{
soapMessages.SoapResponseSignatureStatus = SoapSignatureUtility.VerifyXML(soapMessages.SoapResponse);
}
catch (Exception ex)
{
}
}
public object BeforeSendRequest(ref System.ServiceModel.Channels.Message request, System.ServiceModel.IClientChannel channel)
{
string startInfo = "application/soap+xml";
string boundary = string.Format("uuid:{0}+id=1", Guid.NewGuid());
string startUri = "http://tempuri.org/0";
// Set message ID
UniqueId messageId = new UniqueId();
soapMessages.SoapRequestMessageId = messageId.ToString();
// Modify MessageId and From headers
request.Headers.MessageId = messageId;
request.Headers.From = new EndpointAddress("http://www.w3.org/2005/08/addressing/anonymous");
request.Headers.To = new Uri("http://www.w3.org/2005/08/addressing/anonymous");
// Create message buffer (Message needs to be recreated multiple times)
MessageBuffer msgBuffer = request.CreateBufferedCopy(int.MaxValue);
// Get assembled soap request and sign
var messageToSign = msgBuffer.CreateMessage();
var bigXml = ConvertMessageToString(messageToSign);
var signedBigXml = Encoding.UTF8.GetString(SoapSignatureUtility.SignBodyAndAddressingHeaders(Encoding.UTF8.GetBytes(bigXml), signingCertificate));
soapMessages.SoapRequest = signedBigXml;
// Encoding message into MTOM format using MTOM writer
request = msgBuffer.CreateMessage();
var initialMs = new MemoryStream();
var initialWriter = XmlDictionaryWriter.CreateMtomWriter(initialMs, Encoding.UTF8, int.MaxValue, startInfo, boundary, startUri, true, true);
request.WriteMessage(initialWriter);
initialWriter.Flush();
var originalMessageSize = (int)initialMs.Length;
// Copy MTOM message into buffer
byte[] bufferUnsigned = new byte[originalMessageSize];
Array.Copy(initialMs.GetBuffer(), 0, bufferUnsigned, 0, (int)initialMs.Position);
string mtomString = Encoding.UTF8.GetString(bufferUnsigned);
// Get SOAP XML from MTOM message, with start and end index
int startSoapIndex;
var unsignedXml = GetSoapFromString(mtomString, out startSoapIndex);
int endSoapIndex = startSoapIndex + unsignedXml.Length;
// If binary MIME parts are found in MTOM message, then replace out base64 content with MTOM include statement
string signedFinalXml = signedBigXml;
var partHeaderMatches = Regex.Matches(mtomString, @"((Content-ID: <.*>\s+)|(Content-Transfer-Encoding: binary\s+)|(Content-Type: application/octet-stream\s+)){3}", RegexOptions.IgnoreCase);
if (partHeaderMatches.Count > 0)
{
for (int x = 0; x < partHeaderMatches.Count; x++)
{
var contentId = Regex.Match(partHeaderMatches[x].Value, "Content-ID: <(.*?)>");
var encodedContentId = HttpUtility.UrlEncode(contentId.Groups[1].Value).Replace(".", @"\.");
var unencodedContentId = contentId.Groups[1].Value.Replace(".", @"\.");
// var xopIncludeMatch = Regex.Match(unsignedXml, "(<[^>]+?>)(<([^>]+?:)?Include href=\"cid:(" + encodedContentId + ")\"[^>]*?/>)(</[^>]+?>)", RegexOptions.IgnoreCase);
var xopIncludeMatch = Regex.Match(unsignedXml, "(<[^>]+?>)(<([^>]+?:)?Include href=\"cid:(" + encodedContentId + "|" + unencodedContentId + ")\"[^>]*?/>)(</[^>]+?>)", RegexOptions.IgnoreCase);
signedFinalXml = Regex.Replace(signedFinalXml,
xopIncludeMatch.Groups[1] + "[^<]*?" + xopIncludeMatch.Groups[5],
xopIncludeMatch.Groups[0].Value);
}
}
else
{
signedFinalXml = signedBigXml;
}
// Get difference in message length between unsigned and signed SOAP messages
int diff = Encoding.UTF8.GetBytes(signedFinalXml).Length - Encoding.UTF8.GetBytes(unsignedXml).Length;
// Create buffer large enough to contain MTOM message with signed SOAP XML
byte[] bufferSigned = new byte[bufferUnsigned.Length + diff];
// Copy MIME start content (everything before SOAP XML) from unsigned buffer to signed buffer
Array.Copy(bufferUnsigned, bufferSigned, startSoapIndex);
// Copy signed SOAP XML into signed buffer after MIME start content
var signedXmlArray = Encoding.UTF8.GetBytes(signedFinalXml);
Array.Copy(signedXmlArray, 0, bufferSigned, startSoapIndex, signedXmlArray.Length);
// Copy MIME end content to after signed SOAP XML
Array.Copy(bufferUnsigned, endSoapIndex, bufferSigned, startSoapIndex + signedXmlArray.Length, bufferUnsigned.Length - (endSoapIndex + 1));
var mimeContent = new ArraySegment <byte>(bufferSigned, 0, originalMessageSize + diff).Array;
soapMessages.MtomRequest = mimeContent;
// Recreate request (Message) using MTOM reader
var outputReader = XmlDictionaryReader.CreateMtomReader(mimeContent, 0, mimeContent.Length, Encoding.UTF8, new XmlDictionaryReaderQuotas());
request = Message.CreateMessage(outputReader, int.MaxValue, request.Version);
// Dispose things
msgBuffer.Close();
return(null);
}
