internal EmailMessageHash(EmailMessage emailMessage)
{
if (emailMessage == null)
{
throw new ArgumentNullException("emailMessage");
}
int num = 0;
if (emailMessage.Attachments != null)
{
num = emailMessage.Attachments.Count;
}
int capacity = 8 + 9 * num;
StringBuilder stringBuilder = new StringBuilder(capacity);
using (Stream contentReadStream = emailMessage.Body.GetContentReadStream())
{
stringBuilder.AppendFormat("{0:X8}", EmailMessageHash.ComputeCRC(contentReadStream));
}
if (num > 0)
{
foreach (Attachment attachment in emailMessage.Attachments)
{
using (Stream contentReadStream2 = attachment.GetContentReadStream())
{
stringBuilder.AppendFormat(",{0:X8}", EmailMessageHash.ComputeCRC(contentReadStream2));
}
}
}
this.cachedHashString = stringBuilder.ToString();
}
internal static bool TryGetFromHeader(HeaderList mimeHeader, out EmailMessageHash result)
{
result = null;
string property = XHeaderUtils.GetProperty(mimeHeader, "X-MS-Exchange-Forest-EmailMessageHash");
if (string.IsNullOrEmpty(property))
{
return(false);
}
result = new EmailMessageHash(property);
return(true);
}
public void OnPromotedMessageHandler(StoreDriverEventSource source, StoreDriverDeliveryEventArgs e)
{
StoreDriverDeliveryEventArgsImpl storeDriverDeliveryEventArgsImpl = (StoreDriverDeliveryEventArgsImpl)e;
Header header = storeDriverDeliveryEventArgsImpl.MailItem.Message.MimeDocument.RootPart.Headers.FindFirst("X-MS-Exchange-Organization-Network-Message-Id");
this.diagnosticsSession.TraceDebug <string>("Processing message {0}", (header != null) ? header.Value : "unknown");
if (this.mimeHeaders != null)
{
this.diagnosticsSession.TraceDebug("Already processed this message", new object[0]);
return;
}
this.mimeHeaders = storeDriverDeliveryEventArgsImpl.MailItem.Message.MimeDocument.RootPart.Headers;
string property = this.GetProperty("X-MS-Exchange-Forest-IndexAgent");
if (property == null || !XHeaderStream.IsVersionSupported(property))
{
this.diagnosticsSession.TraceDebug("X-header not present.", new object[0]);
return;
}
bool invalidAnnotationToken = false;
EmailMessageHash emailMessageHash;
if (EmailMessageHash.TryGetFromHeader(this.mimeHeaders, out emailMessageHash))
{
EmailMessageHash emailMessageHash2 = new EmailMessageHash(storeDriverDeliveryEventArgsImpl.MailItem.Message);
this.diagnosticsSession.TraceDebug <EmailMessageHash>("Computed hash value for current message: {0}.", emailMessageHash2);
if (!StringComparer.OrdinalIgnoreCase.Equals(emailMessageHash.ToString(), emailMessageHash2.ToString()))
{
this.diagnosticsSession.TraceDebug <EmailMessageHash, EmailMessageHash>("The current hash value ({0}) doesn't match the original({1})", emailMessageHash2, emailMessageHash);
invalidAnnotationToken = true;
}
}
try
{
using (XHeaderStream xheaderStream = new XHeaderStream(new Func <string, string>(this.GetProperty)))
{
this.PromoteProperties(xheaderStream, storeDriverDeliveryEventArgsImpl.ReplayItem, invalidAnnotationToken);
}
}
catch (Exception arg)
{
this.diagnosticsSession.TraceError <Exception>("Exception during PromoteProperties: {0}", arg);
}
}