private void Parse(byte[] buffer)
{
int headerIndex = Util.IndexOfBuffer(buffer, Util.CrlfBuffer);
if (headerIndex > -1)
{
byte[] headerBuffer = new byte[headerIndex];
System.Array.Copy(buffer, 0, headerBuffer, 0, headerBuffer.Length);
ParseHeader(headerBuffer);
}
/////////////// This part of code is same in Message and BodyPart classes
if (buffer.Length > headerIndex + 4)
{
byte[] bodyBuffer = new byte[buffer.Length - headerIndex - 4];
System.Array.Copy(buffer, headerIndex + 4, bodyBuffer, 0, bodyBuffer.Length);
ContentType contentType = this.ContentType;
ContentDisposition contentDisposition = this.ContentDisposition;
ContentTransferEncoding contentTransferEncoding = this.ContentTransferEncoding;
if (contentType == null)
{
body = System.Text.Encoding.Default.GetString(bodyBuffer, 0, bodyBuffer.Length);
}
else if ((contentType.Type != null && contentType.Type.ToLower() == "text") ||
(contentType.Type != null && contentType.Type.ToLower() == "text" && contentDisposition != null && contentDisposition.Type == ContentDispositionType.Inline))
{
Parameter charsetParameter = contentType.Parameters["charset"];
if (charsetParameter != null && charsetParameter.Value != null)
{
Encoding encoding = Util.GetEncoding(charsetParameter.Value);
body = encoding.GetString(bodyBuffer, 0, bodyBuffer.Length);
if (contentTransferEncoding == ContentTransferEncoding.QuotedPrintable)
{
body = Util.DecodeQuotedPrintable(body, encoding);
}
else if (contentTransferEncoding == ContentTransferEncoding.Base64)
{
body = Util.DecodeBase64(body, encoding);
}
else
{
body = encoding.GetString(bodyBuffer, 0, bodyBuffer.Length);
}
}
else
{
body = System.Text.Encoding.Default.GetString(bodyBuffer, 0, bodyBuffer.Length);
if (contentTransferEncoding == ContentTransferEncoding.QuotedPrintable)
{
body = Util.DecodeQuotedPrintable(body, System.Text.Encoding.Default);
}
else if (contentTransferEncoding == ContentTransferEncoding.Base64)
{
body = Util.DecodeBase64(body, System.Text.Encoding.Default);
}
}
}
else if (contentType.Type != null && contentType.Type.ToLower() == "multipart")
{
Parameter boundaryParameter = contentType.Parameters["boundary"];
if (boundaryParameter != null && boundaryParameter.Value != null)
{
string boundary = boundaryParameter.Value;
IList <byte[]> bodyPartsBufferList = Util.GetBodyPartsBuffers(bodyBuffer, boundary);
for (int i = 0; i < bodyPartsBufferList.Count; i++)
{
byte[] bodyPartBuffer = bodyPartsBufferList[i];
BodyPart bodyPart = new BodyPart(bodyPartBuffer);
bodyParts.Add(bodyPart);
}
}
}
else if (contentType.Type != null && contentType.Type.ToLower() == "message")
{
if (contentType.SubType != null && contentType.SubType.ToLower() == "rfc822")
{
embeddedMessage = new Message(bodyBuffer);
}
else if (contentType.SubType != null && contentType.SubType.ToLower() == "delivery-status")
{
byte[] encodedBodyBuffer = new byte[0];
if (contentTransferEncoding == ContentTransferEncoding.Base64)
{
String base64String = System.Text.Encoding.Default.GetString(bodyBuffer, 0, bodyBuffer.Length);
if (base64String != null && base64String.Length > 0)
{
encodedBodyBuffer = Convert.FromBase64String(base64String);
}
}
if (encodedBodyBuffer.Length > 0)
{
try
{
embeddedMessage = new Message(encodedBodyBuffer);
embeddedMessage.Subject = contentType.Parameters["name"] != null ? contentType.Parameters["name"].Value : "ATT";
}
catch (MessageFormatException)
{
body = System.Text.Encoding.Default.GetString(bodyBuffer, 0, bodyBuffer.Length);
}
}
}
else if (contentType.SubType != null && contentType.SubType == "partial")
{
body = System.Text.Encoding.Default.GetString(bodyBuffer, 0, bodyBuffer.Length);
}
}
else //contentType = image, application, video, audio, ...
{
if (contentTransferEncoding == ContentTransferEncoding.QuotedPrintable)
{
body = System.Text.Encoding.Default.GetString(bodyBuffer, 0, bodyBuffer.Length);
body = body.Replace("=09", "\t");
body = body.Replace("=0D", "\r");
body = body.Replace("=0A", "\n");
body = body.Replace("=20", " ");
body = body.Replace("=\r\n", String.Empty);
}
else if (contentTransferEncoding == ContentTransferEncoding.Base64)
{
bodyBuffer = Util.RemoveCRLF(bodyBuffer);
body = System.Text.Encoding.Default.GetString(bodyBuffer, 0, bodyBuffer.Length);
}
else
{
body = System.Text.Encoding.Default.GetString(bodyBuffer, 0, bodyBuffer.Length);
}
}
}
///////////////////////////////////////////////////////////////////////////////////////
}
/// <summary>
/// Initializes a new instance of the <see cref="BodyPart"/> class.
/// </summary>
/// <param name="attachment">The attachment.</param>
public BodyPart(Attachment attachment)
{
if (attachment != null)
{
if (attachment.ContentType != null)
{
this.ContentType = attachment.ContentType;
}
this.ContentID = attachment.ContentID;
this.ContentLocation = attachment.ContentLocation;
this.ContentTransferEncoding = ContentTransferEncoding.Base64;
if (attachment.ContentDisposition != null)
{
ContentDisposition contentDisposition = attachment.ContentDisposition;
if (attachment.ContentID != null)
{
contentDisposition = new ContentDisposition(ContentDispositionType.Inline);
}
if (attachment.Name != null)
{
Parameter nameParameter = new Parameter("filename", "\"" + attachment.Name + "\"");
contentDisposition.Parameters.Add(nameParameter);
}
this.ContentDisposition = contentDisposition;
}
else
{
ContentDisposition contentDisposition = new ContentDisposition(ContentDispositionType.Attachment);
if (attachment.ContentID != null)
{
contentDisposition = new ContentDisposition(ContentDispositionType.Inline);
}
if (attachment.Name != null)
{
Parameter nameParameter = new Parameter("filename", "\"" + attachment.Name + "\"");
contentDisposition.Parameters.Add(nameParameter);
}
this.ContentDisposition = contentDisposition;
}
byte[] attachmentBuffer = attachment.GetBytes();
if (attachmentBuffer != null && this.ContentType != null && this.ContentType.Type == "text")
{
System.Text.Encoding encoding = Util.GetEncoding(this.ContentType.CharSet);
body = encoding.GetString(attachmentBuffer, 0, attachmentBuffer.Length);
}
else if (attachmentBuffer != null)
{
body = Convert.ToBase64String(attachmentBuffer, 0, attachmentBuffer.Length);
body = Util.SplitBase64Body(body);
}
}
}
internal Attachment[] GetAttachments(bool includeEmbedded)
{
IList <Attachment> attachmentList = new List <Attachment>();
if (embeddedMessage != null)
{
string attachmentName = null;
string charset = null;
if (embeddedMessage.ContentType != null)
{
Parameter nameParameter = embeddedMessage.ContentType.Parameters["name"];
if (nameParameter != null && nameParameter.Value != null)
{
attachmentName = nameParameter.Value;
}
Parameter charsetParameter = embeddedMessage.ContentType.Parameters["charset"];
if (charsetParameter != null)
{
charset = charsetParameter.Value;
}
}
if (attachmentName == null && embeddedMessage.ContentDisposition != null)
{
Parameter filenameParameter = embeddedMessage.ContentDisposition.Parameters["filename"];
if (filenameParameter != null && filenameParameter.Value != null)
{
attachmentName = filenameParameter.Value;
}
}
if (attachmentName == null)
{
attachmentName = embeddedMessage.Subject + ".eml";
}
Encoding encoding = Util.GetEncoding(charset);
byte[] attachmentBuffer = encoding.GetBytes(embeddedMessage.ToString());
Attachment attachment = new Attachment(attachmentBuffer, attachmentName);
attachment.ContentID = this.ContentID;
attachment.ContentLocation = this.ContentLocation;
attachment.ContentDisposition = this.ContentDisposition;
attachment.ContentDescription = this.ContentDescription;
attachmentList.Add(attachment);
}
else if (ContentType != null && ContentType.Type != null && ContentType.Type.ToLower() == "message" && ContentType.SubType != null && ContentType.SubType.ToLower() == "rfc822")
{
string attachmentName = null;
string charset = null;
if (this.ContentType != null)
{
Parameter nameParameter = this.ContentType.Parameters["name"];
if (nameParameter != null && nameParameter.Value != null)
{
attachmentName = nameParameter.Value;
}
Parameter charsetParameter = this.ContentType.Parameters["charset"];
if (charsetParameter != null)
{
charset = charsetParameter.Value;
}
}
if (attachmentName == null && this.ContentDisposition != null)
{
Parameter filenameParameter = this.ContentDisposition.Parameters["filename"];
if (filenameParameter != null && filenameParameter.Value != null)
{
attachmentName = filenameParameter.Value;
}
}
Encoding encoding = Util.GetEncoding(charset);
byte[] attachmentBuffer = encoding.GetBytes(this.ToString());
Attachment attachment = new Attachment(attachmentBuffer, attachmentName);
attachment.ContentID = this.ContentID;
attachment.ContentLocation = this.ContentLocation;
attachment.ContentDisposition = this.ContentDisposition;
attachment.ContentDescription = this.ContentDescription;
attachmentList.Add(attachment);
}
else if (body != null && ContentType != null && ContentType.Type != null && ContentType.Type.ToLower() != "text")
{
string attachmentName = null;
if (this.ContentType != null)
{
Parameter nameParameter = this.ContentType.Parameters["name"];
if (nameParameter != null && nameParameter.Value != null)
{
attachmentName = nameParameter.Value;
}
}
if (attachmentName == null && this.ContentDisposition != null)
{
Parameter filenameParameter = this.ContentDisposition.Parameters["filename"];
if (filenameParameter != null && filenameParameter.Value != null)
{
attachmentName = filenameParameter.Value;
}
}
if (this.ContentTransferEncoding == ContentTransferEncoding.Base64)
{
byte[] attachmentBuffer = Util.DecodeBase64Attachment(body);
Attachment attachment = new Attachment(attachmentBuffer, attachmentName);
attachment.ContentType = new ContentType(ContentType.Type, ContentType.SubType);
attachment.ContentID = this.ContentID;
attachment.ContentLocation = this.ContentLocation;
attachment.ContentDisposition = this.ContentDisposition;
attachment.ContentDescription = this.ContentDescription;
attachmentList.Add(attachment);
}
else
{
byte[] attachmentBuffer = System.Text.Encoding.Default.GetBytes(body);
Attachment attachment = new Attachment(attachmentBuffer, attachmentName);
attachment.ContentType = new ContentType(ContentType.Type, ContentType.SubType);
attachment.ContentID = this.ContentID;
attachment.ContentLocation = this.ContentLocation;
attachment.ContentDisposition = this.ContentDisposition;
attachment.ContentDescription = this.ContentDescription;
attachmentList.Add(attachment);
}
}
else if (body != null && ContentType != null && ContentType.Type != null && ContentType.Type.ToLower() == "text" && ContentType.Parameters["name"] != null)
{
string attachmentName = null;
if (this.ContentType != null)
{
Parameter nameParameter = this.ContentType.Parameters["name"];
if (nameParameter != null && nameParameter.Value != null)
{
attachmentName = nameParameter.Value;
}
}
if (attachmentName == null && this.ContentDisposition != null)
{
Parameter filenameParameter = this.ContentDisposition.Parameters["filename"];
if (filenameParameter != null && filenameParameter.Value != null)
{
attachmentName = filenameParameter.Value;
}
}
byte[] attachmentBuffer = System.Text.Encoding.Default.GetBytes(body);
Attachment attachment = new Attachment(attachmentBuffer, attachmentName);
attachment.ContentType = new ContentType(ContentType.Type, ContentType.SubType);
attachment.ContentID = this.ContentID;
attachment.ContentLocation = this.ContentLocation;
attachment.ContentDisposition = this.ContentDisposition;
attachment.ContentDescription = this.ContentDescription;
attachmentList.Add(attachment);
}
else if (body != null && ContentDisposition != null && ContentDisposition.ToString().ToLower() != "inline")
{
string attachmentName = null;
if (this.ContentType != null)
{
Parameter nameParameter = this.ContentType.Parameters["name"];
if (nameParameter != null && nameParameter.Value != null)
{
attachmentName = nameParameter.Value;
}
}
if (attachmentName == null && this.ContentDisposition != null)
{
Parameter filenameParameter = this.ContentDisposition.Parameters["filename"];
if (filenameParameter != null && filenameParameter.Value != null)
{
attachmentName = filenameParameter.Value;
}
}
if (this.ContentTransferEncoding == ContentTransferEncoding.Base64)
{
byte[] attachmentBuffer = Util.DecodeBase64Attachment(body);
Attachment attachment = new Attachment(attachmentBuffer, attachmentName);
attachment.ContentID = this.ContentID;
attachment.ContentLocation = this.ContentLocation;
attachment.ContentDisposition = this.ContentDisposition;
attachment.ContentDescription = this.ContentDescription;
attachmentList.Add(attachment);
}
else
{
byte[] attachmentBuffer = System.Text.Encoding.Default.GetBytes(body);
Attachment attachment = new Attachment(attachmentBuffer, attachmentName);
attachment.ContentID = this.ContentID;
attachment.ContentLocation = this.ContentLocation;
attachment.ContentDisposition = this.ContentDisposition;
attachment.ContentDescription = this.ContentDescription;
attachmentList.Add(attachment);
}
}
else if (bodyParts.Count > 0)
{
for (int i = 0; i < bodyParts.Count; i++)
{
if (bodyParts[i] != null && (includeEmbedded || bodyParts[i].ContentID == null) && bodyParts[i].ContentType != null && ContentType.Type.ToLower() != "text")
{
Attachment[] bodyPartAttachments = bodyParts[i].GetAttachments(includeEmbedded);
for (int j = 0; j < bodyPartAttachments.Length; j++)
{
attachmentList.Add(bodyPartAttachments[j]);
}
}
}
}
Attachment[] attachments = new Attachment[attachmentList.Count];
for (int i = 0; i < attachmentList.Count; i++)
{
attachments[i] = attachmentList[i];
}
return(attachments);
}
private void ParseHeader(byte[] headerBuffer)
{
string headerAsciiString = System.Text.Encoding.Default.GetString(headerBuffer, 0, headerBuffer.Length);
headerAsciiString = Util.Unfolding(headerAsciiString);
string[] lines = headerAsciiString.Split(Util.CrlfSeparator);
string currentHeaderName = null;
string currentHeaderValue = null;
for (int i = 0; i < lines.Length; i++)
{
if (lines[i].Length > 0)
{
if (!lines[i].StartsWith(" ") && !lines[i].StartsWith("\t"))
{
if (currentHeaderName != null && currentHeaderValue != null)
{
currentHeaderValue = currentHeaderValue.TrimStart();
currentHeaderValue = Util.DecodeHeader(currentHeaderValue, ref headerEncoding);
if (Util.IsStandardKey(currentHeaderName))
{
currentHeaderName = Util.GetCorrectedStandardKey(currentHeaderName);
}
Header header = new Header(currentHeaderName, currentHeaderValue);
headers.Add(header);
currentHeaderName = null;
currentHeaderValue = null;
}
int colonIndex = lines[i].IndexOf(":");
if (colonIndex > -1)
{
currentHeaderName = lines[i].Substring(0, colonIndex);
if (currentHeaderName.ToLower() == "content-disposition")
{
currentHeaderValue = lines[i].Substring(colonIndex + 1);
//parse Content-Disposition
ContentDisposition cd = new ContentDisposition(currentHeaderValue);
currentHeaderValue = cd.ToString();
}
else
{
currentHeaderValue = lines[i].Substring(colonIndex + 1);
}
}
}
else
{
lines[i] = lines[i].Replace("\t", " ");
currentHeaderValue += lines[i];
}
}
}
if (currentHeaderName != null && currentHeaderValue != null)
{
currentHeaderValue = currentHeaderValue.TrimStart();
currentHeaderValue = Util.DecodeHeader(currentHeaderValue, ref headerEncoding);
if (Util.IsStandardKey(currentHeaderName))
{
currentHeaderName = Util.GetCorrectedStandardKey(currentHeaderName);
}
Header header = new Header(currentHeaderName, currentHeaderValue);
headers.Add(header);
}
}