public MimePart()
{
ContentDisposition = new ContentDisposition();
ContentType = new ContentType();
BinaryContent = new byte[0];
HeaderFields = new NameValueCollection();
HeaderFieldNames = new NameValueCollection();
SubParts = new MimePartCollection();
}
/// <summary>
/// Gets the type of the content.
/// </summary>
/// <param name="input">The input.</param>
/// <returns></returns>
private static ContentType GetContentType(string input)
{
ContentType field = new ContentType();
field.MimeType = Regex.Match(input, @"(?<=: ?)\S+?(?=([;\s]|\Z))").Value;
Match parammatch = Regex.Match(input, @"(?<=;\s+)[^;\s]*=[^;]*(?=(;|\Z))");
while (parammatch.Success)
{
field.Parameters.Add(FormatFieldName(parammatch.Value.Substring(0, parammatch.Value.IndexOf('='))).ToLower(), parammatch.Value.Substring(parammatch.Value.IndexOf('=') + 1).Replace("\"", "").Trim('\r', '\n'));
parammatch = parammatch.NextMatch();
}
return field;
}
private static void DispatchPart(MimePart part, ref Message message)
{
if (part.SubParts.Count > 0) // This is a container part.
{
_parentContentType = part.ContentType; // saveing right content-type of message
DispatchParts(part, ref message);
}
else // This is a leaf part.
{
// We will consider the highest-level text parts that are not attachments to be the intended for display.
// We know the highest-level parts will be set, because the parser first goes to the deepest level and returns top-level parts last.
if (part.ContentType.Type.ToLower().Equals("text") && !part.ContentDisposition.Disposition.ToLower().Equals("attachment"))
{
if (part.ContentType.SubType.ToLower().Equals("plain"))
{
message.BodyText.Charset = part.Charset;
message.BodyText.Text = part.TextContent;
}
else if (part.ContentType.SubType.ToLower().Equals("html"))
{
message.IsHtml = true;
message.BodyHtml.Charset = part.Charset;
message.BodyHtml.Text = part.TextContent;
}
if (_parentContentType != null)
message.ContentType = _parentContentType;
}
// If this part has to be displayed has an attachment, add it to the appropriate collection.
else if (part.ContentDisposition.Disposition.ToLower().Equals("attachment"))
{
message.Attachments.Add(part);
}
// If this part has to be displayed at the same time as the main body, add it to the appropriate collection.
else if (part.ContentDisposition.Disposition.ToLower().Equals("inline"))
{
message.EmbeddedObjects.Add(part);
}
// If we have image isn't marked as "Content-Disposition: inline", we will add it to EmbededObjects
else if (part.ContentType.Type.ToLower().Equals("image"))
{
message.EmbeddedObjects.Add(part);
}
// Parse message/rfc822 parts as Message objects and place them in the appropriate collection.
else if (part.ContentType.MimeType.ToLower().Equals("message/rfc822"))
{
var msg = part.TextContent;
message.SubMessages.Add(ParseMessage(ref msg)); //.BinaryContent));
}
else if (part.ContentType.MimeType.ToLower().Equals("application/pkcs7-signature")
|| part.ContentType.MimeType.ToLower().Equals("application/x-pkcs7-signature"))
{
var to_digest = part.Container.TextContent;
to_digest = Regex.Split(to_digest, "\r\n--" + part.Container.ContentType.Parameters["boundary"])[1];
to_digest = to_digest.TrimStart('\r', '\n');
//Match endDelimiter = Regex.Match(toDigest, "(?<=[^\r\n]\r\n)\r\n", RegexOptions.RightToLeft);
//int lastNonNewLine = Regex.Match(toDigest, "[^\r\n]", RegexOptions.RightToLeft).Index;
//if (endDelimiter.Index != -1 && endDelimiter.Index > lastNonNewLine) toDigest = toDigest.Remove(endDelimiter.Index);
//TODO: What should be done in PPC ?
#if !PocketPC
message.Signatures.Smime = new SignedCms(new ContentInfo(Encoding.ASCII.GetBytes(to_digest)), true);
message.Signatures.Smime.Decode(part.BinaryContent);
#endif
}
else if (message.IsMultipartReport && part.ContentType.MimeType.ToLower().Equals("message/delivery-status"))
{
message.BodyText.Text += String.Format("\r\nDelivery status:\r\n{0}", part.TextContent);
}
else
{
message.UnknownDispositionMimeParts.Add(part);
}
// Anyway, this is a leaf part of the message.
message.LeafMimeParts.Add(part);
}
}
/// <summary>
/// Gets the type of the content.
/// </summary>
/// <param name="input">The input.</param>
/// <returns></returns>
public static ContentType GetContentType(string input)
{
var field = new ContentType {MimeType = _regxMimeType.Match(input).Value};
var parammatch = _regxMimeTypeParams.Match(input);
while (parammatch.Success)
{
field.Parameters.Add(
FormatFieldName(
parammatch.Value.Substring(0, parammatch.Value.IndexOf('='))).ToLower(),
parammatch.Value.Substring(parammatch.Value.IndexOf('=') + 1).Replace("\"", "").Trim('\r', '\n'));
parammatch = parammatch.NextMatch();
}
return field;
}
/// <summary>
/// The MIME representation of the header.
/// </summary>
/// <param name="removeBlindCopies">if set to <c>true</c> remove blind copies (BCC).</param>
/// <param name="forceBase64Encoding">if set to <c>true</c> forces inner elements to be base64 encoded</param>
/// <returns></returns>
public string ToHeaderString(bool removeBlindCopies, bool forceBase64Encoding = false)
{
System.Text.StringBuilder sb = new System.Text.StringBuilder();
/*foreach (TraceInfo trace in this.Trace) sb.AppendLine("Received: " + trace.ToString());
* if (!this.From.Email.Equals(string.Empty)) sb.AppendLine("From: " + this.From.Merged);
* if (!this.Sender.Email.Equals(string.Empty)) sb.AppendLine("Sender: " + this.Sender.Merged);
* if (this.To.Count > 0) sb.AppendLine("To: " + this.To.Merged);
* if (this.Cc.Count > 0) sb.AppendLine("Cc: " + this.Cc.Merged);
* if (this.Bcc.Count > 0) sb.AppendLine("Bcc: " + this.Bcc.Merged);
* if (!this.ReplyTo.Email.Equals(string.Empty)) sb.AppendLine("Reply-to: " + this.ReplyTo.Merged);*/
foreach (TraceInfo trace in Trace)
{
AddHeaderField("Received", trace.ToString());
}
if (!From.Email.Equals(string.Empty))
{
AddHeaderField("From", From.Merged);
}
if (!Sender.Email.Equals(string.Empty))
{
AddHeaderField("Sender", Sender.Merged);
}
if (To.Count > 0)
{
AddHeaderField("To", To.Merged);
}
if (Cc.Count > 0)
{
AddHeaderField("Cc", Cc.Merged);
}
if (Bcc.Count > 0 && !removeBlindCopies)
{
AddHeaderField("Bcc", Bcc.Merged);
}
if (!ReplyTo.Email.Equals(string.Empty))
{
AddHeaderField("Reply-To", ReplyTo.Merged);
}
if (Date.Equals(DateTime.MinValue))
{
Date = DateTime.Now;
}
if (string.IsNullOrEmpty(MessageId))
{
MessageId = "<AU" + Codec.GetUniqueString() + "@" + System.Net.Dns.GetHostName() + ">";
}
if (ContentType.MimeType.Length > 0)
{
string contentType = ContentType.ToString();
contentType = contentType.Substring(contentType.IndexOf(":") + 1).TrimStart(' ');
AddHeaderField("Content-Type", contentType);
}
if (ContentDisposition.Disposition.Length > 0)
{
string contentDisposition = ContentDisposition.ToString();
contentDisposition = contentDisposition.Substring(contentDisposition.IndexOf(":") + 1).TrimStart(' ');
AddHeaderField("Content-Disposition", contentDisposition);
}
if (forceBase64Encoding)
{
AddHeaderField("Content-Transfer-Encoding", "base64");
}
else if (ContentType.Type.Equals("text"))
{
AddHeaderField("Content-Transfer-Encoding", "quoted-printable");
}
System.Reflection.Assembly asm = System.Reflection.Assembly.GetExecutingAssembly();
Version v = asm.GetName().Version;
AddHeaderField("X-Mailer", "ActiveUp.MailSystem " + v.Major + "." + v.Minor + "." + v.Build + " www.activeup.com");
foreach (string key in HeaderFields.AllKeys)
{
for (int i = 0; i < HeaderFields.GetValues(key).Length; i++)
{
sb.Append(HeaderFieldNames.GetValues(key)[i] + ": " + HeaderFields.GetValues(key)[i] + "\r\n");
}
}
return(sb.ToString().TrimEnd('\r', '\n'));
}