/// <summary> Parse content disposition.</summary>
/// <param name="header"> The header. </param>
private void ParseContentDisposition(MIMEheader header)
{
//From = header.Value.Trim();
var semSplit = new Regex("(?:^|;)(\"(?:[^\"]+|\"\")*\"|[^;]*)", RegexOptions.Compiled);
var first = true;
foreach (Match match in semSplit.Matches(header.Value))
{
if (first)
{
this.ContentDisposition = match.Value.Trim();
first = false;
}
else
{
var trimPart = match.Value.TrimStart(';').Trim();
var equalSeparator = new[]
{
'='
};
var partParts = trimPart.Split(equalSeparator, 2);
if (partParts.Count() == 2)
{
partParts[1] = partParts[1].Trim(' ', '\t', '\n', '\v', '\f', '\r', '"');
if (partParts[0].Equals("filename"))
{
this.ContentDispositionFileName = partParts[1];
}
}
}
}
}
/// <summary> Parse content transfer encoding.</summary>
/// <param name="header"> The header. </param>
private void ParseContentTransferEncoding(MIMEheader header)
{
switch (header.Value.Trim())
{
case "7bit":
this.ContentTransferEncoding = ContentTransferEncodingType.Bit7;
break;
case "8bit":
this.ContentTransferEncoding = ContentTransferEncodingType.Bit8;
break;
case "binary":
this.ContentTransferEncoding = ContentTransferEncodingType.Binary;
break;
case "quoted-printable":
this.ContentTransferEncoding = ContentTransferEncodingType.Quotedprintable;
break;
case "base64":
this.ContentTransferEncoding = ContentTransferEncodingType.Base64;
break;
case "ietf-token":
this.ContentTransferEncoding = ContentTransferEncodingType.Ietftoken;
break;
case "x-token":
this.ContentTransferEncoding = ContentTransferEncodingType.Xtoken;
break;
}
}
/// <summary> Parse date.</summary>
/// <param name="header"> The header. </param>
private void ParseDate(MIMEheader header)
{
var dateString = header.Value.Trim();
var parts = dateString.Split(' ');
if (parts.Count() > 6)
{
var partsList = new List <string>(parts);
partsList.RemoveRange(6, partsList.Count - 6);
dateString = string.Join(" ", partsList);
}
var myCultureInfo = new CultureInfo("en-US");
try
{
var partDateTime = DateTime.ParseExact(dateString, "ddd, dd MMM yyyy HH:mm:ss zzzz", CultureInfo.InvariantCulture);
this.Date = partDateTime.ToUniversalTime().ToString("yyyy-MM-dd hh.mm.ss.fffffff");
}
catch (FormatException ex)
{
// _log.Error("Sleuth FormatException", ex);
this._email.AddErrorReport(FcLogLevel.Warn, "MIME Part", "Unable to parse date", dateString, ex);
//Console.WriteLine("Unable to parse '{0}' '{1}'", dateString,ex.Message);
}
}
/// <summary> Parse content identifier.</summary>
/// <param name="header"> The header. </param>
private void ParseContentId(MIMEheader header)
{
var contentID = header.Value.Trim();
/* contentID = contentID.Remove(0, 1);
* contentID = contentID.Remove(contentID.Length-1, 1);
*/
this.ContentID = contentID;
}
/// <summary> Parse headers.</summary>
/// <param name="dataStream"> The data stream. </param>
/// <param name="currentPart"> The current part. </param>
/// <param name="parentPart"> The parent part. </param>
/// <param name="encoding"> The encoding. </param>
/// <param name="boundaryFound"> [out] The boundary found. </param>
public void ParseHeaders(LineReader dataStream, MIMEpart currentPart, MIMEpart parentPart, Encoding encoding, out bool boundaryFound)
{
var separator = new char[] { ':' };
var line = String.Empty;
MIMEheader currentHeader = null;
boundaryFound = false;
while (line != null)
{ // read line by line
//line = dataStream.ReadLine();)
line = dataStream.ReadLine(encoding);
if (line != null)
{
// break whene empty line (headers delimiter was found)
// or end of document was reached
if (line.Equals(String.Empty) || line.Length == 0)
{
break;
}
// check for parrent boundary line - in case of empty part conent
if (parentPart != null && parentPart.ContentBoundary != null)
{
if (line.Equals(parentPart.ContentBoundary) || line.Equals(parentPart.PartBoundary))
{ // content is empty - break
boundaryFound = true;
break;
}
}
// store line to raw headers string
currentPart.RawHeaders += line + Environment.NewLine;
// handle multiline headers :
if (char.IsWhiteSpace(line[0]))
{
// if header line begins with white character
// add its conent to previous header value
if (currentHeader != null)
{
currentHeader.Value += line.Trim();
}
}
else
{ // next header was detected :
if (currentHeader != null)
{ // if this is not the first one - store previous header
currentPart.AddHeader(currentHeader);
currentHeader = null;
}
// split first part of header to type and value parts :
var parts = line.Split(separator, 2);
if (parts.Count() == 2)
{
currentHeader = new MIMEheader();
currentHeader.Type = parts[0].Trim();
currentHeader.Value = parts[1].Trim();
}
}
}
}
// store last found header before exit
if (currentHeader != null)
{
currentPart.AddHeader(currentHeader);
}
}
/// <summary> Parse content type.</summary>
/// <param name="header"> The header. </param>
private void ParseContentType(MIMEheader header)
{
var semSplit = new Regex("(?:^|;)(\"(?:[^\"]+|\"\")*\"|[^;]*)", RegexOptions.Compiled);
var first = true;
foreach (Match match in semSplit.Matches(header.Value))
{
if (first)
{
var slashSeparator = new[]
{
'/'
};
var typeParts = match.Value.Split(slashSeparator);
if (typeParts.Count() != 2)
{
return;
}
this.ContentType = typeParts[0].Trim();
this.ContentSubtype = typeParts[1].Trim();
if (this.ContentType.Equals("multipart"))
{
this.IsMultiPart = true;
}
first = false;
}
else
{
var trimPart = match.Value.TrimStart(';').Trim();
var equalSeparator = new[]
{
'='
};
var partParts = trimPart.Split(equalSeparator, 2);
if (partParts.Count() == 2)
{
partParts[1] = partParts[1].Trim(' ', '\t', '\n', '\v', '\f', '\r', '"');
if (partParts[0].Equals("boundary"))
{
this._boundary = partParts[1];
}
else if (partParts[0].Equals("name"))
{
this.ContentTypeName = partParts[1];
}
else if (partParts[0].Equals("charset"))
{
this.ContentTypeCharset = partParts[1];
try
{
this.Encoding = Encoding.GetEncoding(this.ContentTypeCharset);
;
}
catch (Exception ex) {
this._email.AddErrorReport(FcLogLevel.Warn, "MIME Part", "Unable to determine ConentType-Chartset", this.ContentTypeCharset, ex);
}
}
}
}
}
}
/// <summary> Parse in reply to.</summary>
/// <param name="header"> The header. </param>
private void ParseInReplyTo(MIMEheader header)
{
this.InReplyTo = header.Value.Trim();
}
/// <summary> Parse message identifier.</summary>
/// <param name="header"> The header. </param>
private void ParseMessageID(MIMEheader header)
{
var messageID = header.Value.Trim();
this.MessageID = messageID;
}
/// <summary> Parse Bcc.</summary>
/// <param name="header"> The header. </param>
private void ParseBcc(MIMEheader header)
{
this.Bcc = header.Value.Trim();
}
/// <summary> Parse Cc.</summary>
/// <param name="header"> The header. </param>
private void ParseCc(MIMEheader header)
{
this.Cc = header.Value.Trim();
}
/// <summary> Parse to.</summary>
/// <param name="header"> The header. </param>
private void ParseTo(MIMEheader header)
{
this.To = header.Value.Trim();
}
/// <summary> Parse subject.</summary>
/// <param name="header"> The header. </param>
private void ParseSubject(MIMEheader header)
{
this.Subject = header.Value.Trim();
}
/// <summary> Parse from.</summary>
/// <param name="header"> The header. </param>
private void ParseFrom(MIMEheader header)
{
this.From = header.Value.Trim();
}
/// <summary>
/// Add preparsed header to the part. Important headers are analyzed and mirrored in part
/// properties.
/// </summary>
/// <param name="header"> The header. </param>
public void AddHeader(MIMEheader header)
{
if (header == null)
{
return;
}
this._headers.Add(header);
if (header.Type.Equals("MIME-Version") && header.Value.Trim().Equals("1.0"))
{
this.IsMIMEpart = true;
}
else if (header.Type.Equals("Content-Type"))
{
this.ParseContentType(header);
}
else if (header.Type.Equals("Content-ID"))
{
this.ParseContentId(header);
}
else if (header.Type.Equals("Content-Transfer-Encoding"))
{
this.ParseContentTransferEncoding(header);
}
else if (header.Type.Equals("Message-ID"))
{
this.ParseMessageID(header);
}
else if (header.Type.Equals("In-Reply-To"))
{
this.ParseInReplyTo(header);
}
else if (header.Type.Equals("From"))
{
this.ParseFrom(header);
}
else if (header.Type.Equals("To"))
{
this.ParseTo(header);
}
else if (header.Type.Equals("Date"))
{
this.ParseDate(header);
}
else if (header.Type.Equals("Content-Disposition"))
{
this.ParseContentDisposition(header);
}
else if (header.Type.Equals("Cc"))
{
this.ParseCc(header);
}
else if (header.Type.Equals("Bcc"))
{
this.ParseBcc(header);
}
else if (header.Type.Equals("Subject"))
{
this.ParseSubject(header);
}
}
