public byte[] SerializeMimeContent(MimeContent content)
{
MemoryStream ContentStream = new MemoryStream();
SerializeMimeContent(content, ContentStream);
return(ContentStream.ToArray());
}
public MimeContent DeserializeMimeContent(string httpContentType, byte[] binaryContent)
{
//
// First of all parse the http content type
//
string MimeType = null, MimeBoundary = null, MimeStart = null;
ParseHttpContentTypeHeader(httpContentType, ref MimeType, ref MimeBoundary, ref MimeStart);
//
// Create the mime-content
//
MimeContent Content = new MimeContent()
{
Boundary = MimeBoundary
};
//
// Start finding the parts in the mime message
// Note: in MIME RFC a "--" represents the end of something
//
int EndBoundaryHelperIdx = 0;
byte[] MimeBoundaryBytes = ParserEncoding.GetBytes("\r\n--" + MimeBoundary);
for (int i = 0; i < binaryContent.Length; i++)
{
if (AreArrayPartsForTextEqual(MimeBoundaryBytes, 0, binaryContent, i, MimeBoundaryBytes.Length))
{
EndBoundaryHelperIdx = i + MimeBoundaryBytes.Length;
if ((EndBoundaryHelperIdx + 1) < binaryContent.Length)
{
// The end of the MIME-message is the boundary followed by "--"
if (binaryContent[EndBoundaryHelperIdx] == '-' && binaryContent[EndBoundaryHelperIdx + 1] == '-')
{
break;
}
}
else
{
throw new ApplicationException("Invalid MIME content parsed, premature End-Of-File detected!");
}
// Start reading the mime part after the boundary
MimePart Part = ReadMimePart(binaryContent, ref i, MimeBoundaryBytes);
if (Part != null)
{
Content.Parts.Add(Part);
}
}
}
//
// Finally return the ready-to-use object model
//
return(Content);
}
public void SerializeMimeContent(MimeContent content, Stream contentStream)
{
byte[] WriteHelper;
byte[] CarriageReturnLineFeed = new byte[] { (byte)'\r', (byte)'\n' };
//
// Prepare some bytes written more than once
//
byte[] BoundaryBytes = ParserEncoding.GetBytes("--" + content.Boundary);
//
// Write every part into the stream
//
foreach (var item in content.Parts)
{
//
// First of all write the boundary
//
contentStream.Write(CarriageReturnLineFeed, 0, CarriageReturnLineFeed.Length);
contentStream.Write(BoundaryBytes, 0, BoundaryBytes.Length);
contentStream.Write(CarriageReturnLineFeed, 0, 2);
//
// Write the content-type for the current element
//
StringBuilder Builder = new StringBuilder();
Builder.Append(string.Format("Content-Type: {0}", item.ContentType));
if (!string.IsNullOrEmpty(item.CharSet))
{
Builder.Append(string.Format("; charset={0}", item.CharSet));
}
Builder.Append(new char[] { '\r', '\n' });
Builder.Append(string.Format("Content-Transfer-Encoding: {0}", item.TransferEncoding));
Builder.Append(new char[] { '\r', '\n' });
Builder.Append(string.Format("Content-Id: {0}", item.ContentId));
WriteHelper = ParserEncoding.GetBytes(Builder.ToString());
contentStream.Write(WriteHelper, 0, WriteHelper.Length);
contentStream.Write(CarriageReturnLineFeed, 0, CarriageReturnLineFeed.Length);
contentStream.Write(CarriageReturnLineFeed, 0, CarriageReturnLineFeed.Length);
//
// Write the actual content
//
contentStream.Write(item.Content, 0, item.Content.Length);
}
//
// Write one last content boundary
//
contentStream.Write(CarriageReturnLineFeed, 0, CarriageReturnLineFeed.Length);
contentStream.Write(BoundaryBytes, 0, BoundaryBytes.Length);
contentStream.Write(new byte[] { 45, 45 }, 0, 2);
contentStream.Write(CarriageReturnLineFeed, 0, CarriageReturnLineFeed.Length);
}
