static void ExtractAttachments(TnefReader reader, BodyBuilder builder)
{
var filter = new BestEncodingFilter();
var prop = reader.TnefPropertyReader;
MimePart attachment = null;
int outIndex, outLength;
byte[] attachData;
string text;
do
{
if (reader.AttributeLevel != TnefAttributeLevel.Attachment)
{
break;
}
switch (reader.AttributeTag)
{
case TnefAttributeTag.AttachRenderData:
if (attachment != null)
{
builder.Attachments.Add(attachment);
}
attachment = new MimePart();
break;
case TnefAttributeTag.Attachment:
if (attachment == null)
{
break;
}
while (prop.ReadNextProperty())
{
switch (prop.PropertyTag.Id)
{
case TnefPropertyId.AttachLongFilename:
attachment.FileName = prop.ReadValueAsString();
break;
case TnefPropertyId.AttachFilename:
if (attachment.FileName == null)
{
attachment.FileName = prop.ReadValueAsString();
}
break;
case TnefPropertyId.AttachContentLocation:
text = prop.ReadValueAsString();
if (Uri.IsWellFormedUriString(text, UriKind.Absolute))
{
attachment.ContentLocation = new Uri(text, UriKind.Absolute);
}
else if (Uri.IsWellFormedUriString(text, UriKind.Relative))
{
attachment.ContentLocation = new Uri(text, UriKind.Relative);
}
break;
case TnefPropertyId.AttachContentBase:
text = prop.ReadValueAsString();
attachment.ContentBase = new Uri(text, UriKind.Absolute);
break;
case TnefPropertyId.AttachContentId:
attachment.ContentId = prop.ReadValueAsString();
break;
case TnefPropertyId.AttachDisposition:
text = prop.ReadValueAsString();
if (attachment.ContentDisposition == null)
{
attachment.ContentDisposition = new ContentDisposition(text);
}
else
{
attachment.ContentDisposition.Disposition = text;
}
break;
case TnefPropertyId.AttachData:
// TODO: implement this...
break;
}
}
break;
case TnefAttributeTag.AttachData:
if (attachment == null)
{
break;
}
attachData = prop.ReadValueAsBytes();
filter.Flush(attachData, 0, attachData.Length, out outIndex, out outLength);
attachment.ContentTransferEncoding = filter.GetBestEncoding(EncodingConstraint.EightBit);
attachment.ContentObject = new ContentObject(new MemoryStream(attachData, false), ContentEncoding.Default);
filter.Reset();
break;
}
if (attachment != null)
{
builder.Attachments.Add(attachment);
}
} while (reader.ReadNextAttribute());
}
static void ExtractAttachments(TnefReader reader, BodyBuilder builder)
{
var attachMethod = TnefAttachMethod.ByValue;
var filter = new BestEncodingFilter();
var prop = reader.TnefPropertyReader;
MimePart attachment = null;
int outIndex, outLength;
TnefAttachFlags flags;
string[] mimeType;
byte[] attachData;
string text;
do
{
if (reader.AttributeLevel != TnefAttributeLevel.Attachment)
{
break;
}
switch (reader.AttributeTag)
{
case TnefAttributeTag.AttachRenderData:
attachMethod = TnefAttachMethod.ByValue;
attachment = new MimePart();
break;
case TnefAttributeTag.Attachment:
if (attachment == null)
{
break;
}
attachData = null;
while (prop.ReadNextProperty())
{
switch (prop.PropertyTag.Id)
{
case TnefPropertyId.AttachLongFilename:
attachment.FileName = prop.ReadValueAsString();
break;
case TnefPropertyId.AttachFilename:
if (attachment.FileName == null)
{
attachment.FileName = prop.ReadValueAsString();
}
break;
case TnefPropertyId.AttachContentLocation:
attachment.ContentLocation = prop.ReadValueAsUri();
break;
case TnefPropertyId.AttachContentBase:
attachment.ContentBase = prop.ReadValueAsUri();
break;
case TnefPropertyId.AttachContentId:
text = prop.ReadValueAsString();
var buffer = CharsetUtils.UTF8.GetBytes(text);
int index = 0;
if (ParseUtils.TryParseMsgId(buffer, ref index, buffer.Length, false, false, out string msgid))
{
attachment.ContentId = msgid;
}
break;
case TnefPropertyId.AttachDisposition:
text = prop.ReadValueAsString();
if (ContentDisposition.TryParse(text, out ContentDisposition disposition))
{
attachment.ContentDisposition = disposition;
}
break;
case TnefPropertyId.AttachData:
attachData = prop.ReadValueAsBytes();
break;
case TnefPropertyId.AttachMethod:
attachMethod = (TnefAttachMethod)prop.ReadValueAsInt32();
break;
case TnefPropertyId.AttachMimeTag:
mimeType = prop.ReadValueAsString().Split('/');
if (mimeType.Length == 2)
{
attachment.ContentType.MediaType = mimeType[0].Trim();
attachment.ContentType.MediaSubtype = mimeType[1].Trim();
}
break;
case TnefPropertyId.AttachFlags:
flags = (TnefAttachFlags)prop.ReadValueAsInt32();
if ((flags & TnefAttachFlags.RenderedInBody) != 0)
{
if (attachment.ContentDisposition == null)
{
attachment.ContentDisposition = new ContentDisposition(ContentDisposition.Inline);
}
else
{
attachment.ContentDisposition.Disposition = ContentDisposition.Inline;
}
}
break;
case TnefPropertyId.AttachSize:
if (attachment.ContentDisposition == null)
{
attachment.ContentDisposition = new ContentDisposition();
}
attachment.ContentDisposition.Size = prop.ReadValueAsInt64();
break;
case TnefPropertyId.DisplayName:
attachment.ContentType.Name = prop.ReadValueAsString();
break;
}
}
if (attachData != null)
{
int count = attachData.Length;
int index = 0;
if (attachMethod == TnefAttachMethod.EmbeddedMessage)
{
attachment.ContentTransferEncoding = ContentEncoding.Base64;
attachment = PromoteToTnefPart(attachment);
count -= 16;
index = 16;
}
else
{
filter.Flush(attachData, index, count, out outIndex, out outLength);
attachment.ContentTransferEncoding = filter.GetBestEncoding(EncodingConstraint.SevenBit);
filter.Reset();
}
attachment.Content = new MimeContent(new MemoryStream(attachData, index, count, false));
builder.Attachments.Add(attachment);
}
break;
case TnefAttributeTag.AttachCreateDate:
if (attachment != null)
{
if (attachment.ContentDisposition == null)
{
attachment.ContentDisposition = new ContentDisposition();
}
attachment.ContentDisposition.CreationDate = prop.ReadValueAsDateTime();
}
break;
case TnefAttributeTag.AttachModifyDate:
if (attachment != null)
{
if (attachment.ContentDisposition == null)
{
attachment.ContentDisposition = new ContentDisposition();
}
attachment.ContentDisposition.ModificationDate = prop.ReadValueAsDateTime();
}
break;
case TnefAttributeTag.AttachTitle:
if (attachment != null && string.IsNullOrEmpty(attachment.FileName))
{
attachment.FileName = prop.ReadValueAsString();
}
break;
case TnefAttributeTag.AttachMetaFile:
if (attachment == null)
{
break;
}
// TODO: what to do with the meta data?
break;
case TnefAttributeTag.AttachData:
if (attachment == null || attachMethod != TnefAttachMethod.ByValue)
{
break;
}
attachData = prop.ReadValueAsBytes();
filter.Flush(attachData, 0, attachData.Length, out outIndex, out outLength);
attachment.ContentTransferEncoding = filter.GetBestEncoding(EncodingConstraint.SevenBit);
attachment.Content = new MimeContent(new MemoryStream(attachData, false));
filter.Reset();
builder.Attachments.Add(attachment);
break;
}
} while (reader.ReadNextAttribute());
}
public async Task<Message> OpenTnef(StorageFile datFile)
{
var message = new MimeMessage();
var bodyFile = default(StorageFile);
var targetFilesCollection = new List<FileInfo>();
using (var stream = await datFile.OpenStreamForReadAsync())
{
using (var tnefReader = new TnefReader(stream))
{
message = ExtractTnefMessage(tnefReader);
if (message.Sender == null)
{
message.Sender = new MailboxAddress(string.Empty, "Sender unknown");
}
foreach (MimePart mimePart in message.Attachments)
{
var isoFile = await LastExtractedFilesProvider.WriteFileToIsoStorage(mimePart.FileName, mimePart.ContentObject.Open());
var basicProperties = await isoFile.GetBasicPropertiesAsync();
var thumb = this.GetVectorThumbnailByType(isoFile.FileType);
var size = FileSizeString((double)basicProperties.Size);
targetFilesCollection.Add(new FileInfo(isoFile, thumb, size, datFile.DisplayName));
}
var body = Enumerable.FirstOrDefault<TextPart>(Enumerable.OfType<TextPart>(message.BodyParts));
if (body != null && !String.IsNullOrEmpty(body.Text))
{
string bodyFileName = "Message_Body.";
if (body.IsHtml)
{
bodyFileName += "html";
}
else if (body.IsPlain)
{
bodyFileName += "txt";
}
else if (body.IsRichText)
{
bodyFileName += "rtf";
}
bodyFile = await LastExtractedFilesProvider.WriteFileToIsoStorage(bodyFileName, body.Text);
}
}
}
var targetMessage = new Message(message.Subject, message.Sender.ToString(), string.Empty, message.Date.ToString(), bodyFile, targetFilesCollection);
return targetMessage;
}
internal TnefPropertyReader(TnefReader tnef)
{
propertyTag = TnefPropertyTag.Null;
propertyName = new TnefNameId ();
rawValueOffset = 0;
rawValueLength = 0;
propertyIndex = 0;
propertyCount = 0;
valueIndex = 0;
valueCount = 0;
rowIndex = 0;
rowCount = 0;
reader = tnef;
}
static MimeMessage ExtractTnefMessage(TnefReader reader)
{
var builder = new BodyBuilder();
var message = new MimeMessage();
while (reader.ReadNextAttribute())
{
if (reader.AttributeLevel == TnefAttributeLevel.Attachment)
{
break;
}
var prop = reader.TnefPropertyReader;
switch (reader.AttributeTag)
{
case TnefAttributeTag.RecipientTable:
ExtractRecipientTable(reader, message);
break;
case TnefAttributeTag.MapiProperties:
ExtractMapiProperties(reader, message, builder);
break;
case TnefAttributeTag.DateSent:
message.Date = prop.ReadValueAsDateTime();
break;
case TnefAttributeTag.Body:
builder.TextBody = prop.ReadValueAsString();
break;
}
}
if (reader.AttributeLevel == TnefAttributeLevel.Attachment)
{
ExtractAttachments(reader, builder);
}
message.Body = builder.ToMessageBody();
return(message);
}
static void ExtractRecipientTable (TnefReader reader, MimeMessage message)
{
var prop = reader.TnefPropertyReader;
// Note: The RecipientTable uses rows of properties...
while (prop.ReadNextRow ()) {
InternetAddressList list = null;
string name = null, addr = null;
while (prop.ReadNextProperty ()) {
switch (prop.PropertyTag.Id) {
case TnefPropertyId.RecipientType:
int recipientType = prop.ReadValueAsInt32 ();
switch (recipientType) {
case 1: list = message.To; break;
case 2: list = message.Cc; break;
case 3: list = message.Bcc; break;
}
break;
case TnefPropertyId.TransmitableDisplayName:
if (string.IsNullOrEmpty (name))
name = prop.ReadValueAsString ();
break;
case TnefPropertyId.DisplayName:
name = prop.ReadValueAsString ();
break;
case TnefPropertyId.EmailAddress:
if (string.IsNullOrEmpty (addr))
addr = prop.ReadValueAsString ();
break;
case TnefPropertyId.SmtpAddress:
// The SmtpAddress, if it exists, should take precedence over the EmailAddress
// (since the SmtpAddress is meant to be used in the RCPT TO command).
addr = prop.ReadValueAsString ();
break;
}
}
if (list != null && !string.IsNullOrEmpty (addr))
list.Add (new MailboxAddress (name, addr));
}
}
/// <summary>
/// Converts the TNEF content into a <see cref="MimeKit.MimeMessage"/>.
/// </summary>
/// <remarks>
/// TNEF data often contains properties that map to <see cref="MimeKit.MimeMessage"/>
/// headers. TNEF data also often contains file attachments which will be
/// mapped to MIME parts.
/// </remarks>
/// <returns>A message representing the TNEF data in MIME format.</returns>
/// <exception cref="System.InvalidOperationException">
/// The <see cref="MimeKit.MimePart.Content"/> property is <c>null</c>.
/// </exception>
public MimeMessage ConvertToMessage()
{
if (Content == null)
{
throw new InvalidOperationException("Cannot parse null TNEF data.");
}
int codepage = 0;
if (!string.IsNullOrEmpty(ContentType.Charset))
{
if ((codepage = CharsetUtils.GetCodePage(ContentType.Charset)) == -1)
{
codepage = 0;
}
}
using (var reader = new TnefReader(Content.Open(), codepage, TnefComplianceMode.Loose)) {
return(ExtractTnefMessage(reader));
}
}
/// <summary>
/// Initializes a new instance of the <see cref="MimeKit.Tnef.TnefReaderStream"/> class.
/// </summary>
/// <remarks>
/// Creates a stream for reading a raw value from the <see cref="TnefReader"/>.
/// </remarks>
/// <param name="tnefReader">The <see cref="TnefReader"/>.</param>
/// <param name="endOffset">The end offset.</param>
public TnefReaderStream(TnefReader tnefReader, int endOffset)
{
valueEndOffset = endOffset;
reader = tnefReader;
}
static void ExtractMapiProperties(TnefReader reader, MimeMessage message, BodyBuilder builder)
{
var prop = reader.TnefPropertyReader;
while (prop.ReadNextProperty())
{
switch (prop.PropertyTag.Id)
{
case TnefPropertyId.InternetMessageId:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode)
{
message.MessageId = prop.ReadValueAsString();
}
break;
case TnefPropertyId.Subject:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode)
{
message.Subject = prop.ReadValueAsString();
}
break;
case TnefPropertyId.RtfCompressed:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Binary)
{
var rtf = new TextPart("rtf");
rtf.ContentType.Name = "body.rtf";
rtf.Text = prop.ReadValueAsString();
builder.Attachments.Add(rtf);
}
break;
case TnefPropertyId.BodyHtml:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Binary)
{
var html = new TextPart("html");
html.ContentType.Name = "body.html";
html.Text = prop.ReadValueAsString();
builder.Attachments.Add(html);
}
break;
case TnefPropertyId.Body:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Binary)
{
var plain = new TextPart("plain");
plain.ContentType.Name = "body.txt";
plain.Text = prop.ReadValueAsString();
builder.Attachments.Add(plain);
}
break;
}
}
}
private void ExtractAttachments(TnefReader reader, BodyBuilder builder)
{
var tnefAttachMethod = TnefAttachMethod.ByValue;
var bestEncodingFilter = new BestEncodingFilter();
var tnefPropertyReader = reader.TnefPropertyReader;
MimePart mimePart = null;
do
{
int outputIndex;
int outputLength;
switch (reader.AttributeTag)
{
case TnefAttributeTag.AttachData:
if (mimePart != null && tnefAttachMethod == TnefAttachMethod.ByValue)
{
byte[] numArray = tnefPropertyReader.ReadValueAsBytes();
bestEncodingFilter.Flush(numArray, 0, numArray.Length, out outputIndex, out outputLength);
mimePart.ContentTransferEncoding = bestEncodingFilter.GetBestEncoding(EncodingConstraint.SevenBit, 78);
mimePart.ContentObject = new ContentObject(new MemoryStream(numArray, false), ContentEncoding.Default);
bestEncodingFilter.Reset();
builder.Attachments.Add(mimePart);
break;
}
break;
case TnefAttributeTag.AttachRenderData:
tnefAttachMethod = TnefAttachMethod.ByValue;
mimePart = new MimePart();
break;
case TnefAttributeTag.Attachment:
if (mimePart != null)
{
while (tnefPropertyReader.ReadNextProperty())
{
switch (tnefPropertyReader.PropertyTag.Id)
{
case TnefPropertyId.AttachData:
using (var rawValueReadStream = tnefPropertyReader.GetRawValueReadStream())
{
using (var memoryStream = new MemoryStream())
{
byte[] buffer = new byte[16];
if (tnefAttachMethod == TnefAttachMethod.EmbeddedMessage)
{
TnefPart tnefPart = new TnefPart();
foreach (Parameter parameter in mimePart.ContentType.Parameters)
{
tnefPart.ContentType.Parameters[parameter.Name] = parameter.Value;
}
if (mimePart.ContentDisposition != null)
{
tnefPart.ContentDisposition = mimePart.ContentDisposition;
}
mimePart = tnefPart;
}
rawValueReadStream.Read(buffer, 0, 16);
rawValueReadStream.CopyTo(memoryStream, 4096);
byte[] input = memoryStream.ToArray();
bestEncodingFilter.Flush(input, 0, (int)memoryStream.Length, out outputIndex, out outputLength);
mimePart.ContentTransferEncoding = bestEncodingFilter.GetBestEncoding(EncodingConstraint.SevenBit, 78);
mimePart.ContentObject = new ContentObject(memoryStream, ContentEncoding.Default);
bestEncodingFilter.Reset();
builder.Attachments.Add(mimePart);
}
}
continue;
case TnefPropertyId.AttachFilename:
if (String.IsNullOrEmpty(mimePart.FileName))
{
mimePart.FileName = tnefPropertyReader.ReadValueAsString();
continue;
}
continue;
case TnefPropertyId.AttachMethod:
tnefAttachMethod = (TnefAttachMethod)tnefPropertyReader.ReadValueAsInt32();
continue;
case TnefPropertyId.AttachLongFilename:
mimePart.FileName = tnefPropertyReader.ReadValueAsString();
continue;
case TnefPropertyId.AttachMimeTag:
string[] strArray = tnefPropertyReader.ReadValueAsString().Split('/');
if (strArray.Length == 2)
{
mimePart.ContentType.MediaType = strArray[0].Trim();
mimePart.ContentType.MediaSubtype = strArray[1].Trim();
continue;
}
continue;
case TnefPropertyId.AttachContentBase:
var uriString = tnefPropertyReader.ReadValueAsString();
mimePart.ContentBase = new Uri(uriString, UriKind.Absolute);
continue;
case TnefPropertyId.AttachContentId:
mimePart.ContentId = tnefPropertyReader.ReadValueAsString();
continue;
case TnefPropertyId.AttachContentLocation:
var uriString2 = tnefPropertyReader.ReadValueAsString();
if (Uri.IsWellFormedUriString(uriString2, UriKind.Absolute))
{
mimePart.ContentLocation = new Uri(uriString2, UriKind.Absolute);
continue;
}
if (Uri.IsWellFormedUriString(uriString2, UriKind.Relative))
{
mimePart.ContentLocation = new Uri(uriString2, UriKind.Relative);
continue;
}
continue;
case TnefPropertyId.AttachFlags:
if ((tnefPropertyReader.ReadValueAsInt32() & 4) != 0)
{
if (mimePart.ContentDisposition == null)
{
mimePart.ContentDisposition = new ContentDisposition("inline");
continue;
}
mimePart.ContentDisposition.Disposition = "inline";
continue;
}
continue;
case TnefPropertyId.AttachDisposition:
var disposition = tnefPropertyReader.ReadValueAsString();
if (mimePart.ContentDisposition == null)
{
mimePart.ContentDisposition = new ContentDisposition(disposition);
continue;
}
mimePart.ContentDisposition.Disposition = disposition;
continue;
case TnefPropertyId.AttachSize:
if (mimePart.ContentDisposition == null)
{
mimePart.ContentDisposition = new ContentDisposition();
}
mimePart.ContentDisposition.Size = new long?(tnefPropertyReader.ReadValueAsInt64());
continue;
case TnefPropertyId.DisplayName:
mimePart.ContentType.Name = tnefPropertyReader.ReadValueAsString();
continue;
default:
continue;
}
}
break;
}
break;
case TnefAttributeTag.AttachTitle:
var name = tnefPropertyReader.ReadValueAsString();
if (mimePart != null && String.IsNullOrEmpty(mimePart.FileName))
{
mimePart.FileName = name;
break;
}
break;
case TnefAttributeTag.AttachCreateDate:
var creationDateTime = tnefPropertyReader.ReadValueAsDateTime();
if (mimePart != null)
{
if (mimePart.ContentDisposition == null)
{
mimePart.ContentDisposition = new ContentDisposition();
}
mimePart.ContentDisposition.CreationDate = new DateTimeOffset(creationDateTime);
break;
}
break;
case TnefAttributeTag.AttachModifyDate:
var modifyDateTime = tnefPropertyReader.ReadValueAsDateTime();
if (mimePart != null)
{
if (mimePart.ContentDisposition == null)
{
mimePart.ContentDisposition = new ContentDisposition();
}
mimePart.ContentDisposition.ModificationDate = new DateTimeOffset(modifyDateTime);
break;
}
break;
}
}
while (reader.ReadNextAttribute());
}
static void ExtractAttachments(TnefReader reader, BodyBuilder builder)
{
var filter = new BestEncodingFilter ();
var prop = reader.TnefPropertyReader;
MimePart attachment = null;
int outIndex, outLength;
byte[] attachData;
string text;
Console.WriteLine ("Extracting attachments...");
do {
if (reader.AttributeLevel != TnefAttributeLevel.Attachment)
Assert.Fail ("Expected attachment attribute level: {0}", reader.AttributeLevel);
switch (reader.AttributeTag) {
case TnefAttributeTag.AttachRenderData:
attachment = new MimePart ();
builder.Attachments.Add (attachment);
break;
case TnefAttributeTag.Attachment:
if (attachment == null)
break;
while (prop.ReadNextProperty ()) {
switch (prop.PropertyTag.Id) {
case TnefPropertyId.AttachLongFilename:
attachment.FileName = prop.ReadValueAsString ();
Console.WriteLine ("Attachment Property: {0} = {1}", prop.PropertyTag.Id, attachment.FileName);
break;
case TnefPropertyId.AttachFilename:
if (attachment.FileName == null) {
attachment.FileName = prop.ReadValueAsString ();
Console.WriteLine ("Attachment Property: {0} = {1}", prop.PropertyTag.Id, attachment.FileName);
} else {
Console.WriteLine ("Attachment Property: {0} = {1}", prop.PropertyTag.Id, prop.ReadValueAsString ());
}
break;
case TnefPropertyId.AttachContentLocation:
text = prop.ReadValueAsString ();
if (Uri.IsWellFormedUriString (text, UriKind.Absolute))
attachment.ContentLocation = new Uri (text, UriKind.Absolute);
else if (Uri.IsWellFormedUriString (text, UriKind.Relative))
attachment.ContentLocation = new Uri (text, UriKind.Relative);
Console.WriteLine ("Attachment Property: {0} = {1}", prop.PropertyTag.Id, text);
break;
case TnefPropertyId.AttachContentBase:
text = prop.ReadValueAsString ();
attachment.ContentBase = new Uri (text, UriKind.Absolute);
Console.WriteLine ("Attachment Property: {0} = {1}", prop.PropertyTag.Id, text);
break;
case TnefPropertyId.AttachContentId:
attachment.ContentId = prop.ReadValueAsString ();
Console.WriteLine ("Attachment Property: {0} = {1}", prop.PropertyTag.Id, attachment.ContentId);
break;
case TnefPropertyId.AttachDisposition:
text = prop.ReadValueAsString ();
if (attachment.ContentDisposition == null)
attachment.ContentDisposition = new ContentDisposition (text);
else
attachment.ContentDisposition.Disposition = text;
Console.WriteLine ("Attachment Property: {0} = {1}", prop.PropertyTag.Id, text);
break;
case TnefPropertyId.AttachData:
if (prop.IsEmbeddedMessage) {
Console.WriteLine ("Attachment Property: {0} is an EmbeddedMessage", prop.PropertyTag.Id);
var stream = prop.GetRawValueReadStream ();
using (var tnef = new TnefReader (stream, reader.MessageCodepage, reader.ComplianceMode)) {
var embedded = ExtractTnefMessage (tnef);
Console.WriteLine ("embedded attachments = {0}", embedded.BodyParts.Count ());
foreach (var part in embedded.BodyParts)
builder.Attachments.Add (part);
}
} else {
Console.WriteLine ("Attachment Property: {0} is not an EmbeddedMessage", prop.PropertyTag.Id);
}
break;
default:
Console.WriteLine ("Attachment Property (unhandled): {0} = {1}", prop.PropertyTag.Id, prop.ReadValue ());
break;
}
}
break;
case TnefAttributeTag.AttachData:
if (attachment == null)
break;
attachData = prop.ReadValueAsBytes ();
filter.Flush (attachData, 0, attachData.Length, out outIndex, out outLength);
attachment.ContentTransferEncoding = filter.GetBestEncoding (EncodingConstraint.SevenBit);
attachment.ContentObject = new ContentObject (new MemoryStream (attachData, false));
filter.Reset ();
break;
default:
Console.WriteLine ("Attachment Attribute (unhandled): {0} = {1}", reader.AttributeTag, prop.ReadValue ());
break;
}
} while (reader.ReadNextAttribute ());
}
private void ExtractMapiProperties(TnefReader reader, MimeMessage message, BodyBuilder builder)
{
var tnefPropertyReader = reader.TnefPropertyReader;
while (tnefPropertyReader.ReadNextProperty())
{
switch (tnefPropertyReader.PropertyTag.Id)
{
case TnefPropertyId.RtfCompressed:
var memoryStream = new MemoryStream();
if (tnefPropertyReader.PropertyTag.ValueTnefType == TnefPropertyType.String8 || tnefPropertyReader.PropertyTag.ValueTnefType == TnefPropertyType.Unicode || tnefPropertyReader.PropertyTag.ValueTnefType == TnefPropertyType.Binary)
{
var textPart = new TextPart("rtf");
textPart.ContentType.Name = "body.rtf";
RtfCompressedToRtf rtfCompressedToRtf = new RtfCompressedToRtf();
//var memoryStream = new MemoryStream();
using (var filteredStream = new FilteredStream(memoryStream))
{
filteredStream.Add(rtfCompressedToRtf);
using (Stream rawValueReadStream = tnefPropertyReader.GetRawValueReadStream())
{
rawValueReadStream.CopyTo(filteredStream, 4096);
filteredStream.Flush();
}
}
textPart.ContentObject = new ContentObject(memoryStream, ContentEncoding.Default);
memoryStream.Position = 0L;
builder.Attachments.Add(textPart);
continue;
}
memoryStream.Dispose();
continue;
case TnefPropertyId.BodyHtml:
if (tnefPropertyReader.PropertyTag.ValueTnefType == TnefPropertyType.String8 || tnefPropertyReader.PropertyTag.ValueTnefType == TnefPropertyType.Unicode || tnefPropertyReader.PropertyTag.ValueTnefType == TnefPropertyType.Binary)
{
var textPart = new TextPart("html");
textPart.ContentType.Name = "body.html";
textPart.Text = tnefPropertyReader.ReadValueAsString();
builder.Attachments.Add(textPart);
continue;
}
continue;
case TnefPropertyId.InternetMessageId:
if (tnefPropertyReader.PropertyTag.ValueTnefType == TnefPropertyType.String8 || tnefPropertyReader.PropertyTag.ValueTnefType == TnefPropertyType.Unicode)
{
message.MessageId = tnefPropertyReader.ReadValueAsString();
continue;
}
continue;
case TnefPropertyId.Subject:
if (tnefPropertyReader.PropertyTag.ValueTnefType == TnefPropertyType.String8 || tnefPropertyReader.PropertyTag.ValueTnefType == TnefPropertyType.Unicode)
{
message.Subject = tnefPropertyReader.ReadValueAsString();
continue;
}
continue;
case TnefPropertyId.Body:
if (tnefPropertyReader.PropertyTag.ValueTnefType == TnefPropertyType.String8 || tnefPropertyReader.PropertyTag.ValueTnefType == TnefPropertyType.Unicode || tnefPropertyReader.PropertyTag.ValueTnefType == TnefPropertyType.Binary)
{
var textPart = new TextPart("plain");
textPart.ContentType.Name = "body.txt";
textPart.Text = tnefPropertyReader.ReadValueAsString();
builder.Attachments.Add(textPart);
continue;
}
continue;
case TnefPropertyId.ConversationTopic:
if (tnefPropertyReader.PropertyTag.ValueTnefType == TnefPropertyType.String8 || tnefPropertyReader.PropertyTag.ValueTnefType == TnefPropertyType.Unicode)
{
message.Subject = tnefPropertyReader.ReadValueAsString();
continue;
}
continue;
case TnefPropertyId.SenderName:
if (tnefPropertyReader.PropertyTag.ValueTnefType == TnefPropertyType.String8 || tnefPropertyReader.PropertyTag.ValueTnefType == TnefPropertyType.Unicode)
{
var sender = new MailboxAddress(string.Empty, tnefPropertyReader.ReadValueAsString());
message.Sender = sender;
}
continue;
case (TnefPropertyId)Mapi.ID.PR_PRIMARY_SEND_ACCOUNT:
if (tnefPropertyReader.PropertyTag.ValueTnefType == TnefPropertyType.String8 || tnefPropertyReader.PropertyTag.ValueTnefType == TnefPropertyType.Unicode)
{
var senderEmail = new MailboxAddress(string.Empty, tnefPropertyReader.ReadValueAsString());
message.Sender = senderEmail;
}
continue;
default:
try
{
tnefPropertyReader.ReadValue();
continue;
}
catch
{
continue;
}
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="MimeKit.Tnef.TnefReaderStream"/> class.
/// </summary>
/// <remarks>
/// Creates a stream for reading a raw value from the <see cref="TnefReader"/>.
/// </remarks>
/// <param name="tnefReader">The <see cref="TnefReader"/>.</param>
/// <param name="endOffset">The end offset.</param>
public TnefReaderStream (TnefReader tnefReader, int endOffset)
{
valueEndOffset = endOffset;
reader = tnefReader;
}
static void ExtractMapiProperties(TnefReader reader, MimeMessage message, BodyBuilder builder)
{
var prop = reader.TnefPropertyReader;
var recipient = new EmailAddress();
var sender = new EmailAddress();
string normalizedSubject = null;
string subjectPrefix = null;
MailboxAddress mailbox;
var msgid = false;
while (prop.ReadNextProperty())
{
switch (prop.PropertyTag.Id)
{
case TnefPropertyId.InternetMessageId:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode)
{
message.MessageId = prop.ReadValueAsString();
msgid = true;
}
break;
case TnefPropertyId.TnefCorrelationKey:
// According to MSDN, PidTagTnefCorrelationKey is a unique key that is
// meant to be used to tie the TNEF attachment to the encapsulating
// message. It can be a string or a binary blob. It seems that most
// implementations use the Message-Id string, so if this property
// value looks like a Message-Id, then us it as one (unless we get a
// InternetMessageId property, in which case we use that instead.
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Binary)
{
if (!msgid)
{
var value = prop.ReadValueAsString();
if (value.Length > 5 && value[0] == '<' && value[value.Length - 1] == '>' && value.IndexOf('@') != -1)
{
message.MessageId = value;
}
}
}
break;
case TnefPropertyId.Subject:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode)
{
message.Subject = prop.ReadValueAsString();
}
break;
case TnefPropertyId.SubjectPrefix:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode)
{
subjectPrefix = prop.ReadValueAsString();
}
break;
case TnefPropertyId.NormalizedSubject:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode)
{
normalizedSubject = prop.ReadValueAsString();
}
break;
case TnefPropertyId.SenderName:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode)
{
sender.Name = prop.ReadValueAsString();
}
break;
case TnefPropertyId.SenderEmailAddress:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode)
{
sender.Addr = prop.ReadValueAsString();
}
break;
case TnefPropertyId.SenderSearchKey:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Binary)
{
sender.SearchKey = prop.ReadValueAsString();
}
break;
case TnefPropertyId.SenderAddrtype:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode)
{
sender.AddrType = prop.ReadValueAsString();
}
break;
case TnefPropertyId.ReceivedByName:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode)
{
recipient.Name = prop.ReadValueAsString();
}
break;
case TnefPropertyId.ReceivedByEmailAddress:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode)
{
recipient.Addr = prop.ReadValueAsString();
}
break;
case TnefPropertyId.ReceivedBySearchKey:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Binary)
{
recipient.SearchKey = prop.ReadValueAsString();
}
break;
case TnefPropertyId.ReceivedByAddrtype:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode)
{
recipient.AddrType = prop.ReadValueAsString();
}
break;
case TnefPropertyId.RtfCompressed:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Binary)
{
var rtf = new TextPart("rtf");
var converter = new RtfCompressedToRtf();
var content = new MemoryBlockStream();
using (var filtered = new FilteredStream(content)) {
filtered.Add(converter);
using (var compressed = prop.GetRawValueReadStream()) {
compressed.CopyTo(filtered, 4096);
filtered.Flush();
}
}
rtf.Content = new MimeContent(content);
content.Position = 0;
builder.Attachments.Add(rtf);
}
break;
case TnefPropertyId.BodyHtml:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Binary)
{
var html = new TextPart("html");
Encoding encoding;
if (prop.PropertyTag.ValueTnefType != TnefPropertyType.Unicode)
{
encoding = Encoding.GetEncoding(reader.MessageCodepage);
}
else
{
encoding = CharsetUtils.UTF8;
}
html.SetText(encoding, prop.ReadValueAsString());
builder.Attachments.Add(html);
}
break;
case TnefPropertyId.Body:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Binary)
{
var plain = new TextPart("plain");
Encoding encoding;
if (prop.PropertyTag.ValueTnefType != TnefPropertyType.Unicode)
{
encoding = Encoding.GetEncoding(reader.MessageCodepage);
}
else
{
encoding = CharsetUtils.UTF8;
}
plain.SetText(encoding, prop.ReadValueAsString());
builder.Attachments.Add(plain);
}
break;
case TnefPropertyId.Importance:
// https://msdn.microsoft.com/en-us/library/ee237166(v=exchg.80).aspx
switch (prop.ReadValueAsInt32())
{
case 2: message.Importance = MessageImportance.High; break;
case 1: message.Importance = MessageImportance.Normal; break;
case 0: message.Importance = MessageImportance.Low; break;
}
break;
case TnefPropertyId.Priority:
// https://msdn.microsoft.com/en-us/library/ee159473(v=exchg.80).aspx
switch (prop.ReadValueAsInt32())
{
case 1: message.Priority = MessagePriority.Urgent; break;
case 0: message.Priority = MessagePriority.Normal; break;
case -1: message.Priority = MessagePriority.NonUrgent; break;
}
break;
case TnefPropertyId.Sensitivity:
// https://msdn.microsoft.com/en-us/library/ee217353(v=exchg.80).aspx
// https://tools.ietf.org/html/rfc2156#section-5.3.4
switch (prop.ReadValueAsInt32())
{
case 1: message.Headers[HeaderId.Sensitivity] = "Personal"; break;
case 2: message.Headers[HeaderId.Sensitivity] = "Private"; break;
case 3: message.Headers[HeaderId.Sensitivity] = "Company-Confidential"; break;
case 0: message.Headers.Remove(HeaderId.Sensitivity); break;
}
break;
}
}
if (string.IsNullOrEmpty(message.Subject) && !string.IsNullOrEmpty(normalizedSubject))
{
if (!string.IsNullOrEmpty(subjectPrefix))
{
message.Subject = subjectPrefix + normalizedSubject;
}
else
{
message.Subject = normalizedSubject;
}
}
if (sender.TryGetMailboxAddress(out mailbox))
{
message.From.Add(mailbox);
}
if (recipient.TryGetMailboxAddress(out mailbox))
{
message.To.Add(mailbox);
}
}
static void ExtractRecipientTable(TnefReader reader, MimeMessage message)
{
var prop = reader.TnefPropertyReader;
// Note: The RecipientTable uses rows of properties...
while (prop.ReadNextRow())
{
string transmitableDisplayName = null;
string recipientDisplayName = null;
string displayName = string.Empty;
InternetAddressList list = null;
string addr = null;
while (prop.ReadNextProperty())
{
switch (prop.PropertyTag.Id)
{
case TnefPropertyId.RecipientType:
int recipientType = prop.ReadValueAsInt32();
switch (recipientType)
{
case 1: list = message.To; break;
case 2: list = message.Cc; break;
case 3: list = message.Bcc; break;
}
break;
case TnefPropertyId.TransmitableDisplayName:
transmitableDisplayName = prop.ReadValueAsString();
break;
case TnefPropertyId.RecipientDisplayName:
recipientDisplayName = prop.ReadValueAsString();
break;
case TnefPropertyId.DisplayName:
displayName = prop.ReadValueAsString();
break;
case TnefPropertyId.EmailAddress:
if (string.IsNullOrEmpty(addr))
{
addr = prop.ReadValueAsString();
}
break;
case TnefPropertyId.SmtpAddress:
// The SmtpAddress, if it exists, should take precedence over the EmailAddress
// (since the SmtpAddress is meant to be used in the RCPT TO command).
addr = prop.ReadValueAsString();
break;
}
}
if (list != null && !string.IsNullOrEmpty(addr))
{
var name = recipientDisplayName ?? transmitableDisplayName ?? displayName;
list.Add(new MailboxAddress(name, addr));
}
}
}
private MimeMessage ExtractTnefMessage(TnefReader reader)
{
var tnefReader = reader.TnefPropertyReader;
var builder = new BodyBuilder();
var message = new MimeMessage();
while (reader.ReadNextAttribute() && reader.AttributeLevel == TnefAttributeLevel.Message)
{
switch (reader.AttributeTag)
{
case TnefAttributeTag.MapiProperties:
this.ExtractMapiProperties(reader, message, builder);
continue;
case TnefAttributeTag.DateReceived:
message.Date = tnefReader.ReadValueAsDateTime();
continue;
default:
continue;
}
}
if (reader.AttributeLevel == TnefAttributeLevel.Attachment)
{
ExtractAttachments(reader, builder);
}
message.Body = builder.ToMessageBody();
return message;
}
static MimeMessage ParseTnefMessage(string path, TnefComplianceStatus expected)
{
using (var reader = new TnefReader (File.OpenRead (path), 0, TnefComplianceMode.Loose)) {
var message = ExtractTnefMessage (reader);
Assert.AreEqual (expected, reader.ComplianceStatus, "Unexpected compliance status.");
return message;
}
}
static void ExtractMapiProperties (TnefReader reader, MimeMessage message, BodyBuilder builder)
{
var prop = reader.TnefPropertyReader;
while (prop.ReadNextProperty ()) {
switch (prop.PropertyTag.Id) {
case TnefPropertyId.InternetMessageId:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode) {
message.MessageId = prop.ReadValueAsString ();
}
break;
case TnefPropertyId.Subject:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode) {
message.Subject = prop.ReadValueAsString ();
}
break;
case TnefPropertyId.RtfCompressed:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Binary) {
var rtf = new TextPart ("rtf");
rtf.ContentType.Name = "body.rtf";
var converter = new RtfCompressedToRtf ();
var content = new MemoryStream ();
using (var filtered = new FilteredStream (content)) {
filtered.Add (converter);
using (var compressed = prop.GetRawValueReadStream ()) {
compressed.CopyTo (filtered, 4096);
filtered.Flush ();
}
}
rtf.ContentObject = new ContentObject (content);
content.Position = 0;
builder.Attachments.Add (rtf);
}
break;
case TnefPropertyId.BodyHtml:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Binary) {
var html = new TextPart ("html");
html.ContentType.Name = "body.html";
html.Text = prop.ReadValueAsString ();
builder.Attachments.Add (html);
}
break;
case TnefPropertyId.Body:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Binary) {
var plain = new TextPart ("plain");
plain.ContentType.Name = "body.txt";
plain.Text = prop.ReadValueAsString ();
builder.Attachments.Add (plain);
}
break;
}
}
}
static MimeMessage ExtractTnefMessage(TnefReader reader)
{
var builder = new BodyBuilder ();
var message = new MimeMessage ();
while (reader.ReadNextAttribute ()) {
if (reader.AttributeLevel == TnefAttributeLevel.Attachment)
break;
if (reader.AttributeLevel != TnefAttributeLevel.Message)
Assert.Fail ("Unknown attribute level.");
var prop = reader.TnefPropertyReader;
switch (reader.AttributeTag) {
case TnefAttributeTag.RecipientTable:
ExtractRecipientTable (reader, message);
break;
case TnefAttributeTag.MapiProperties:
ExtractMapiProperties (reader, message, builder);
break;
case TnefAttributeTag.DateSent:
message.Date = prop.ReadValueAsDateTime ();
Console.WriteLine ("Message Attribute: {0} = {1}", reader.AttributeTag, message.Date);
break;
case TnefAttributeTag.Body:
builder.TextBody = prop.ReadValueAsString ();
Console.WriteLine ("Message Attribute: {0} = {1}", reader.AttributeTag, builder.TextBody);
break;
case TnefAttributeTag.TnefVersion:
Console.WriteLine ("Message Attribute: {0} = {1}", reader.AttributeTag, prop.ReadValueAsInt32 ());
break;
case TnefAttributeTag.OemCodepage:
int codepage = prop.ReadValueAsInt32 ();
try {
var encoding = Encoding.GetEncoding (codepage);
Console.WriteLine ("Message Attribute: OemCodepage = {0}", encoding.HeaderName);
}
catch {
Console.WriteLine ("Message Attribute: OemCodepage = {0}", codepage);
}
break;
default:
Console.WriteLine ("Message Attribute (unhandled): {0} = {1}", reader.AttributeTag, prop.ReadValue ());
break;
}
}
if (reader.AttributeLevel == TnefAttributeLevel.Attachment) {
ExtractAttachments (reader, builder);
} else {
Console.WriteLine ("no attachments");
}
message.Body = builder.ToMessageBody ();
return message;
}
static void ExtractRecipientTable(TnefReader reader, MimeMessage message)
{
var prop = reader.TnefPropertyReader;
// Note: The RecipientTable uses rows of properties...
while (prop.ReadNextRow ()) {
InternetAddressList list = null;
string name = null, addr = null;
while (prop.ReadNextProperty ()) {
switch (prop.PropertyTag.Id) {
case TnefPropertyId.RecipientType:
int recipientType = prop.ReadValueAsInt32 ();
switch (recipientType) {
case 1: list = message.To; break;
case 2: list = message.Cc; break;
case 3: list = message.Bcc; break;
default:
Assert.Fail ("Invalid recipient type.");
break;
}
Console.WriteLine ("RecipientTable Property: {0} = {1}", prop.PropertyTag.Id, recipientType);
break;
case TnefPropertyId.TransmitableDisplayName:
if (string.IsNullOrEmpty (name)) {
name = prop.ReadValueAsString ();
Console.WriteLine ("RecipientTable Property: {0} = {1}", prop.PropertyTag.Id, name);
} else {
Console.WriteLine ("RecipientTable Property: {0} = {1}", prop.PropertyTag.Id, prop.ReadValueAsString ());
}
break;
case TnefPropertyId.DisplayName:
name = prop.ReadValueAsString ();
Console.WriteLine ("RecipientTable Property: {0} = {1}", prop.PropertyTag.Id, name);
break;
case TnefPropertyId.EmailAddress:
if (string.IsNullOrEmpty (addr)) {
addr = prop.ReadValueAsString ();
Console.WriteLine ("RecipientTable Property: {0} = {1}", prop.PropertyTag.Id, addr);
} else {
Console.WriteLine ("RecipientTable Property: {0} = {1}", prop.PropertyTag.Id, prop.ReadValueAsString ());
}
break;
case TnefPropertyId.SmtpAddress:
// The SmtpAddress, if it exists, should take precedence over the EmailAddress
// (since the SmtpAddress is meant to be used in the RCPT TO command).
addr = prop.ReadValueAsString ();
Console.WriteLine ("RecipientTable Property: {0} = {1}", prop.PropertyTag.Id, addr);
break;
default:
Console.WriteLine ("RecipientTable Property (unhandled): {0} = {1}", prop.PropertyTag.Id, prop.ReadValue ());
break;
}
}
Assert.IsNotNull (list, "The recipient type was never specified.");
Assert.IsNotNull (addr, "The address was never specified.");
if (list != null)
list.Add (new MailboxAddress (name, addr));
}
}
static void ExtractMapiProperties(TnefReader reader, MimeMessage message, BodyBuilder builder)
{
var prop = reader.TnefPropertyReader;
while (prop.ReadNextProperty ()) {
switch (prop.PropertyTag.Id) {
case TnefPropertyId.InternetMessageId:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode) {
message.MessageId = prop.ReadValueAsString ();
Console.WriteLine ("Message Property: {0} = {1}", prop.PropertyTag.Id, message.MessageId);
} else {
Assert.Fail ("Unknown property type for Message-Id: {0}", prop.PropertyTag.ValueTnefType);
}
break;
case TnefPropertyId.Subject:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode) {
message.Subject = prop.ReadValueAsString ();
Console.WriteLine ("Message Property: {0} = {1}", prop.PropertyTag.Id, message.Subject);
} else {
Assert.Fail ("Unknown property type for Subject: {0}", prop.PropertyTag.ValueTnefType);
}
break;
case TnefPropertyId.RtfCompressed:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Binary) {
var rtf = new TextPart ("rtf");
rtf.ContentType.Name = "body.rtf";
var converter = new RtfCompressedToRtf ();
var content = new MemoryStream ();
using (var filtered = new FilteredStream (content)) {
filtered.Add (converter);
using (var compressed = prop.GetRawValueReadStream ()) {
compressed.CopyTo (filtered, 4096);
filtered.Flush ();
}
}
rtf.ContentObject = new ContentObject (content);
content.Position = 0;
builder.Attachments.Add (rtf);
Console.WriteLine ("Message Property: {0} = <compressed rtf data>", prop.PropertyTag.Id);
} else {
Assert.Fail ("Unknown property type for {0}: {1}", prop.PropertyTag.Id, prop.PropertyTag.ValueTnefType);
}
break;
case TnefPropertyId.BodyHtml:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Binary) {
var html = new TextPart ("html");
html.ContentType.Name = "body.html";
html.Text = prop.ReadValueAsString ();
builder.Attachments.Add (html);
Console.WriteLine ("Message Property: {0} = {1}", prop.PropertyTag.Id, html.Text);
} else {
Assert.Fail ("Unknown property type for {0}: {1}", prop.PropertyTag.Id, prop.PropertyTag.ValueTnefType);
}
break;
case TnefPropertyId.Body:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Binary) {
var plain = new TextPart ("plain");
plain.ContentType.Name = "body.txt";
plain.Text = prop.ReadValueAsString ();
builder.Attachments.Add (plain);
Console.WriteLine ("Message Property: {0} = {1}", prop.PropertyTag.Id, plain.Text);
} else {
Assert.Fail ("Unknown property type for {0}: {1}", prop.PropertyTag.Id, prop.PropertyTag.ValueTnefType);
}
break;
default:
Console.WriteLine ("Message Property (unhandled): {0} = {1}", prop.PropertyTag.Id, prop.ReadValue ());
break;
}
}
}
static void ExtractMapiProperties(TnefReader reader, MimeMessage message, BodyBuilder builder)
{
var prop = reader.TnefPropertyReader;
while (prop.ReadNextProperty())
{
switch (prop.PropertyTag.Id)
{
case TnefPropertyId.InternetMessageId:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode)
{
message.MessageId = prop.ReadValueAsString();
}
break;
case TnefPropertyId.Subject:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode)
{
message.Subject = prop.ReadValueAsString();
}
break;
case TnefPropertyId.RtfCompressed:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Binary)
{
var rtf = new TextPart("rtf");
var converter = new RtfCompressedToRtf();
var content = new MemoryBlockStream();
using (var filtered = new FilteredStream(content)) {
filtered.Add(converter);
using (var compressed = prop.GetRawValueReadStream()) {
compressed.CopyTo(filtered, 4096);
filtered.Flush();
}
}
rtf.Content = new MimeContent(content);
content.Position = 0;
builder.Attachments.Add(rtf);
}
break;
case TnefPropertyId.BodyHtml:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Binary)
{
var html = new TextPart("html");
Encoding encoding;
if (prop.PropertyTag.ValueTnefType != TnefPropertyType.Unicode)
{
encoding = Encoding.GetEncoding(reader.MessageCodepage);
}
else
{
encoding = CharsetUtils.UTF8;
}
html.SetText(encoding, prop.ReadValueAsString());
builder.Attachments.Add(html);
}
break;
case TnefPropertyId.Body:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Binary)
{
var plain = new TextPart("plain");
Encoding encoding;
if (prop.PropertyTag.ValueTnefType != TnefPropertyType.Unicode)
{
encoding = Encoding.GetEncoding(reader.MessageCodepage);
}
else
{
encoding = CharsetUtils.UTF8;
}
plain.SetText(encoding, prop.ReadValueAsString());
builder.Attachments.Add(plain);
}
break;
case TnefPropertyId.Importance:
switch (prop.ReadValueAsInt32())
{
case 2: message.Importance = MessageImportance.High; break;
case 0: message.Importance = MessageImportance.Low; break;
}
break;
case TnefPropertyId.Priority:
switch (prop.ReadValueAsInt32())
{
case 2: message.Priority = MessagePriority.Urgent; break;
case 0: message.Priority = MessagePriority.NonUrgent; break;
}
break;
}
}
}
/// <summary>
/// Converts the TNEF content into a <see cref="MimeKit.MimeMessage"/>.
/// </summary>
/// <remarks>
/// TNEF data often contains properties that map to <see cref="MimeKit.MimeMessage"/>
/// headers. TNEF data also often contains file attachments which will be
/// mapped to MIME parts.
/// </remarks>
/// <returns>A message representing the TNEF data in MIME format.</returns>
/// <exception cref="System.InvalidOperationException">
/// The <see cref="MimeKit.MimePart.ContentObject"/> property is <c>null</c>.
/// </exception>
public MimeMessage ConvertToMessage ()
{
if (ContentObject == null)
throw new InvalidOperationException ("Cannot parse TNEF data without a ContentObject.");
int codepage = 0;
if (!string.IsNullOrEmpty (ContentType.Charset)) {
if ((codepage = CharsetUtils.GetCodePage (ContentType.Charset)) == -1)
codepage = 0;
}
using (var reader = new TnefReader (ContentObject.Open (), codepage, TnefComplianceMode.Loose)) {
return ExtractTnefMessage (reader);
}
}
static void ExtractAttachments(TnefReader reader, BodyBuilder builder)
{
var attachMethod = TnefAttachMethod.ByValue;
var filter = new BestEncodingFilter();
var prop = reader.TnefPropertyReader;
MimePart attachment = null;
int outIndex, outLength;
TnefAttachFlags flags;
string[] mimeType;
byte[] attachData;
string text;
do
{
if (reader.AttributeLevel != TnefAttributeLevel.Attachment)
{
break;
}
switch (reader.AttributeTag)
{
case TnefAttributeTag.AttachRenderData:
attachMethod = TnefAttachMethod.ByValue;
attachment = new MimePart();
break;
case TnefAttributeTag.Attachment:
if (attachment == null)
{
break;
}
while (prop.ReadNextProperty())
{
switch (prop.PropertyTag.Id)
{
case TnefPropertyId.AttachLongFilename:
attachment.FileName = prop.ReadValueAsString();
break;
case TnefPropertyId.AttachFilename:
if (attachment.FileName == null)
{
attachment.FileName = prop.ReadValueAsString();
}
break;
case TnefPropertyId.AttachContentLocation:
text = prop.ReadValueAsString();
if (Uri.IsWellFormedUriString(text, UriKind.Absolute))
{
attachment.ContentLocation = new Uri(text, UriKind.Absolute);
}
else if (Uri.IsWellFormedUriString(text, UriKind.Relative))
{
attachment.ContentLocation = new Uri(text, UriKind.Relative);
}
break;
case TnefPropertyId.AttachContentBase:
text = prop.ReadValueAsString();
attachment.ContentBase = new Uri(text, UriKind.Absolute);
break;
case TnefPropertyId.AttachContentId:
attachment.ContentId = prop.ReadValueAsString();
break;
case TnefPropertyId.AttachDisposition:
text = prop.ReadValueAsString();
if (attachment.ContentDisposition == null)
{
attachment.ContentDisposition = new ContentDisposition(text);
}
else
{
attachment.ContentDisposition.Disposition = text;
}
break;
case TnefPropertyId.AttachData:
var stream = prop.GetRawValueReadStream();
var content = new MemoryStream();
var guid = new byte[16];
if (attachMethod == TnefAttachMethod.EmbeddedMessage)
{
var tnef = new TnefPart();
foreach (var param in attachment.ContentType.Parameters)
{
tnef.ContentType.Parameters[param.Name] = param.Value;
}
if (attachment.ContentDisposition != null)
{
tnef.ContentDisposition = attachment.ContentDisposition;
}
attachment = tnef;
}
// read the GUID
stream.Read(guid, 0, 16);
// the rest is content
using (var filtered = new FilteredStream(content)) {
filtered.Add(filter);
stream.CopyTo(filtered, 4096);
filtered.Flush();
}
content.Position = 0;
attachment.ContentTransferEncoding = filter.GetBestEncoding(EncodingConstraint.SevenBit);
attachment.Content = new MimeContent(content);
filter.Reset();
builder.Attachments.Add(attachment);
break;
case TnefPropertyId.AttachMethod:
attachMethod = (TnefAttachMethod)prop.ReadValueAsInt32();
break;
case TnefPropertyId.AttachMimeTag:
mimeType = prop.ReadValueAsString().Split('/');
if (mimeType.Length == 2)
{
attachment.ContentType.MediaType = mimeType[0].Trim();
attachment.ContentType.MediaSubtype = mimeType[1].Trim();
}
break;
case TnefPropertyId.AttachFlags:
flags = (TnefAttachFlags)prop.ReadValueAsInt32();
if ((flags & TnefAttachFlags.RenderedInBody) != 0)
{
if (attachment.ContentDisposition == null)
{
attachment.ContentDisposition = new ContentDisposition(ContentDisposition.Inline);
}
else
{
attachment.ContentDisposition.Disposition = ContentDisposition.Inline;
}
}
break;
case TnefPropertyId.AttachSize:
if (attachment.ContentDisposition == null)
{
attachment.ContentDisposition = new ContentDisposition();
}
attachment.ContentDisposition.Size = prop.ReadValueAsInt64();
break;
case TnefPropertyId.DisplayName:
attachment.ContentType.Name = prop.ReadValueAsString();
break;
}
}
break;
case TnefAttributeTag.AttachCreateDate:
if (attachment != null)
{
if (attachment.ContentDisposition == null)
{
attachment.ContentDisposition = new ContentDisposition();
}
attachment.ContentDisposition.CreationDate = prop.ReadValueAsDateTime();
}
break;
case TnefAttributeTag.AttachModifyDate:
if (attachment != null)
{
if (attachment.ContentDisposition == null)
{
attachment.ContentDisposition = new ContentDisposition();
}
attachment.ContentDisposition.ModificationDate = prop.ReadValueAsDateTime();
}
break;
case TnefAttributeTag.AttachTitle:
if (attachment != null && string.IsNullOrEmpty(attachment.FileName))
{
attachment.FileName = prop.ReadValueAsString();
}
break;
case TnefAttributeTag.AttachMetaFile:
if (attachment == null)
{
break;
}
// TODO: what to do with the meta data?
break;
case TnefAttributeTag.AttachData:
if (attachment == null || attachMethod != TnefAttachMethod.ByValue)
{
break;
}
attachData = prop.ReadValueAsBytes();
filter.Flush(attachData, 0, attachData.Length, out outIndex, out outLength);
attachment.ContentTransferEncoding = filter.GetBestEncoding(EncodingConstraint.EightBit);
attachment.Content = new MimeContent(new MemoryStream(attachData, false));
filter.Reset();
builder.Attachments.Add(attachment);
break;
}
} while (reader.ReadNextAttribute());
}
static void ExtractAttachments (TnefReader reader, BodyBuilder builder)
{
var attachMethod = TnefAttachMethod.ByValue;
var filter = new BestEncodingFilter ();
var prop = reader.TnefPropertyReader;
MimePart attachment = null;
int outIndex, outLength;
TnefAttachFlags flags;
string[] mimeType;
byte[] attachData;
string text;
do {
if (reader.AttributeLevel != TnefAttributeLevel.Attachment)
break;
switch (reader.AttributeTag) {
case TnefAttributeTag.AttachRenderData:
attachMethod = TnefAttachMethod.ByValue;
attachment = new MimePart ();
break;
case TnefAttributeTag.Attachment:
if (attachment == null)
break;
while (prop.ReadNextProperty ()) {
switch (prop.PropertyTag.Id) {
case TnefPropertyId.AttachLongFilename:
attachment.FileName = prop.ReadValueAsString ();
break;
case TnefPropertyId.AttachFilename:
if (attachment.FileName == null)
attachment.FileName = prop.ReadValueAsString ();
break;
case TnefPropertyId.AttachContentLocation:
text = prop.ReadValueAsString ();
if (Uri.IsWellFormedUriString (text, UriKind.Absolute))
attachment.ContentLocation = new Uri (text, UriKind.Absolute);
else if (Uri.IsWellFormedUriString (text, UriKind.Relative))
attachment.ContentLocation = new Uri (text, UriKind.Relative);
break;
case TnefPropertyId.AttachContentBase:
text = prop.ReadValueAsString ();
attachment.ContentBase = new Uri (text, UriKind.Absolute);
break;
case TnefPropertyId.AttachContentId:
attachment.ContentId = prop.ReadValueAsString ();
break;
case TnefPropertyId.AttachDisposition:
text = prop.ReadValueAsString ();
if (attachment.ContentDisposition == null)
attachment.ContentDisposition = new ContentDisposition (text);
else
attachment.ContentDisposition.Disposition = text;
break;
case TnefPropertyId.AttachData:
var stream = prop.GetRawValueReadStream ();
var content = new MemoryStream ();
var guid = new byte[16];
if (attachMethod == TnefAttachMethod.EmbeddedMessage) {
var tnef = new TnefPart ();
foreach (var param in attachment.ContentType.Parameters)
tnef.ContentType.Parameters[param.Name] = param.Value;
if (attachment.ContentDisposition != null)
tnef.ContentDisposition = attachment.ContentDisposition;
attachment = tnef;
}
// read the GUID
stream.Read (guid, 0, 16);
// the rest is content
using (var filtered = new FilteredStream (content)) {
filtered.Add (filter);
stream.CopyTo (filtered, 4096);
filtered.Flush ();
}
content.Position = 0;
attachment.ContentTransferEncoding = filter.GetBestEncoding (EncodingConstraint.SevenBit);
attachment.ContentObject = new ContentObject (content);
filter.Reset ();
builder.Attachments.Add (attachment);
break;
case TnefPropertyId.AttachMethod:
attachMethod = (TnefAttachMethod) prop.ReadValueAsInt32 ();
break;
case TnefPropertyId.AttachMimeTag:
mimeType = prop.ReadValueAsString ().Split ('/');
if (mimeType.Length == 2) {
attachment.ContentType.MediaType = mimeType[0].Trim ();
attachment.ContentType.MediaSubtype = mimeType[1].Trim ();
}
break;
case TnefPropertyId.AttachFlags:
flags = (TnefAttachFlags) prop.ReadValueAsInt32 ();
if ((flags & TnefAttachFlags.RenderedInBody) != 0) {
if (attachment.ContentDisposition == null)
attachment.ContentDisposition = new ContentDisposition (ContentDisposition.Inline);
else
attachment.ContentDisposition.Disposition = ContentDisposition.Inline;
}
break;
case TnefPropertyId.AttachSize:
if (attachment.ContentDisposition == null)
attachment.ContentDisposition = new ContentDisposition ();
attachment.ContentDisposition.Size = prop.ReadValueAsInt64 ();
break;
case TnefPropertyId.DisplayName:
attachment.ContentType.Name = prop.ReadValueAsString ();
break;
}
}
break;
case TnefAttributeTag.AttachCreateDate:
if (attachment != null) {
if (attachment.ContentDisposition == null)
attachment.ContentDisposition = new ContentDisposition ();
attachment.ContentDisposition.CreationDate = prop.ReadValueAsDateTime ();
}
break;
case TnefAttributeTag.AttachModifyDate:
if (attachment != null) {
if (attachment.ContentDisposition == null)
attachment.ContentDisposition = new ContentDisposition ();
attachment.ContentDisposition.ModificationDate = prop.ReadValueAsDateTime ();
}
break;
case TnefAttributeTag.AttachTitle:
if (attachment != null && string.IsNullOrEmpty (attachment.FileName))
attachment.FileName = prop.ReadValueAsString ();
break;
case TnefAttributeTag.AttachMetaFile:
if (attachment == null)
break;
// TODO: what to do with the meta data?
break;
case TnefAttributeTag.AttachData:
if (attachment == null || attachMethod != TnefAttachMethod.ByValue)
break;
attachData = prop.ReadValueAsBytes ();
filter.Flush (attachData, 0, attachData.Length, out outIndex, out outLength);
attachment.ContentTransferEncoding = filter.GetBestEncoding (EncodingConstraint.EightBit);
attachment.ContentObject = new ContentObject (new MemoryStream (attachData, false));
filter.Reset ();
builder.Attachments.Add (attachment);
break;
}
} while (reader.ReadNextAttribute ());
}
/// <summary>
/// Initialize a new instance of the <see cref="TnefReaderStream"/> class.
/// </summary>
/// <remarks>
/// Creates a stream for reading a raw value from the <see cref="TnefReader"/>.
/// </remarks>
/// <param name="tnefReader">The <see cref="TnefReader"/>.</param>
/// <param name="dataEndOffset">The end offset of the data.</param>
/// <param name="valueEndOffset">The end offset of the container value.</param>
public TnefReaderStream(TnefReader tnefReader, int dataEndOffset, int valueEndOffset)
{
this.valueEndOffset = valueEndOffset;
this.dataEndOffset = dataEndOffset;
reader = tnefReader;
}
static void ExtractMapiProperties(TnefReader reader, MimeMessage message, BodyBuilder builder)
{
var prop = reader.TnefPropertyReader;
while (prop.ReadNextProperty())
{
switch (prop.PropertyTag.Id)
{
case TnefPropertyId.InternetMessageId:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode)
{
message.MessageId = prop.ReadValueAsString();
}
break;
case TnefPropertyId.Subject:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode)
{
message.Subject = prop.ReadValueAsString();
}
break;
case TnefPropertyId.RtfCompressed:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Binary)
{
var rtf = new TextPart("rtf");
rtf.ContentType.Name = "body.rtf";
var converter = new RtfCompressedToRtf();
var content = new MemoryBlockStream();
using (var filtered = new FilteredStream(content)) {
filtered.Add(converter);
using (var compressed = prop.GetRawValueReadStream()) {
compressed.CopyTo(filtered, 4096);
filtered.Flush();
}
}
rtf.ContentObject = new ContentObject(content);
content.Position = 0;
builder.Attachments.Add(rtf);
}
break;
case TnefPropertyId.BodyHtml:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Binary)
{
var html = new TextPart("html");
html.ContentType.Name = "body.html";
html.Text = prop.ReadValueAsString();
builder.Attachments.Add(html);
}
break;
case TnefPropertyId.Body:
if (prop.PropertyTag.ValueTnefType == TnefPropertyType.String8 ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Unicode ||
prop.PropertyTag.ValueTnefType == TnefPropertyType.Binary)
{
var plain = new TextPart("plain");
plain.ContentType.Name = "body.txt";
plain.Text = prop.ReadValueAsString();
builder.Attachments.Add(plain);
}
break;
}
}
}
static void ExtractAttachments (TnefReader reader, BodyBuilder builder)
{
var filter = new BestEncodingFilter ();
var prop = reader.TnefPropertyReader;
MimePart attachment = null;
int outIndex, outLength;
byte[] attachData;
string text;
do {
if (reader.AttributeLevel != TnefAttributeLevel.Attachment)
break;
switch (reader.AttributeTag) {
case TnefAttributeTag.AttachRenderData:
attachment = new MimePart ();
builder.Attachments.Add (attachment);
break;
case TnefAttributeTag.Attachment:
if (attachment == null)
break;
while (prop.ReadNextProperty ()) {
switch (prop.PropertyTag.Id) {
case TnefPropertyId.AttachLongFilename:
attachment.FileName = prop.ReadValueAsString ();
break;
case TnefPropertyId.AttachFilename:
if (attachment.FileName == null)
attachment.FileName = prop.ReadValueAsString ();
break;
case TnefPropertyId.AttachContentLocation:
text = prop.ReadValueAsString ();
if (Uri.IsWellFormedUriString (text, UriKind.Absolute))
attachment.ContentLocation = new Uri (text, UriKind.Absolute);
else if (Uri.IsWellFormedUriString (text, UriKind.Relative))
attachment.ContentLocation = new Uri (text, UriKind.Relative);
break;
case TnefPropertyId.AttachContentBase:
text = prop.ReadValueAsString ();
attachment.ContentBase = new Uri (text, UriKind.Absolute);
break;
case TnefPropertyId.AttachContentId:
attachment.ContentId = prop.ReadValueAsString ();
break;
case TnefPropertyId.AttachDisposition:
text = prop.ReadValueAsString ();
if (attachment.ContentDisposition == null)
attachment.ContentDisposition = new ContentDisposition (text);
else
attachment.ContentDisposition.Disposition = text;
break;
case TnefPropertyId.AttachData:
// TODO: implement this...
break;
}
}
break;
case TnefAttributeTag.AttachData:
if (attachment == null)
break;
attachData = prop.ReadValueAsBytes ();
filter.Flush (attachData, 0, attachData.Length, out outIndex, out outLength);
attachment.ContentTransferEncoding = filter.GetBestEncoding (EncodingConstraint.EightBit);
attachment.ContentObject = new ContentObject (new MemoryStream (attachData, false));
filter.Reset ();
break;
}
} while (reader.ReadNextAttribute ());
}
static void ExtractAttachments (TnefReader reader, BodyBuilder builder)
{
var attachMethod = TnefAttachMethod.ByValue;
var filter = new BestEncodingFilter ();
var prop = reader.TnefPropertyReader;
MimePart attachment = null;
int outIndex, outLength;
TnefAttachFlags flags;
string[] mimeType;
byte[] attachData;
DateTime time;
string text;
Console.WriteLine ("Extracting attachments...");
do {
if (reader.AttributeLevel != TnefAttributeLevel.Attachment)
Assert.Fail ("Expected attachment attribute level: {0}", reader.AttributeLevel);
switch (reader.AttributeTag) {
case TnefAttributeTag.AttachRenderData:
Console.WriteLine ("Attachment Attribute: {0}", reader.AttributeTag);
attachMethod = TnefAttachMethod.ByValue;
attachment = new MimePart ();
break;
case TnefAttributeTag.Attachment:
Console.WriteLine ("Attachment Attribute: {0}", reader.AttributeTag);
if (attachment == null)
break;
while (prop.ReadNextProperty ()) {
switch (prop.PropertyTag.Id) {
case TnefPropertyId.AttachLongFilename:
attachment.FileName = prop.ReadValueAsString ();
Console.WriteLine ("Attachment Property: {0} = {1}", prop.PropertyTag.Id, attachment.FileName);
break;
case TnefPropertyId.AttachFilename:
if (attachment.FileName == null) {
attachment.FileName = prop.ReadValueAsString ();
Console.WriteLine ("Attachment Property: {0} = {1}", prop.PropertyTag.Id, attachment.FileName);
} else {
Console.WriteLine ("Attachment Property: {0} = {1}", prop.PropertyTag.Id, prop.ReadValueAsString ());
}
break;
case TnefPropertyId.AttachContentLocation:
text = prop.ReadValueAsString ();
if (Uri.IsWellFormedUriString (text, UriKind.Absolute))
attachment.ContentLocation = new Uri (text, UriKind.Absolute);
else if (Uri.IsWellFormedUriString (text, UriKind.Relative))
attachment.ContentLocation = new Uri (text, UriKind.Relative);
Console.WriteLine ("Attachment Property: {0} = {1}", prop.PropertyTag.Id, text);
break;
case TnefPropertyId.AttachContentBase:
text = prop.ReadValueAsString ();
attachment.ContentBase = new Uri (text, UriKind.Absolute);
Console.WriteLine ("Attachment Property: {0} = {1}", prop.PropertyTag.Id, text);
break;
case TnefPropertyId.AttachContentId:
attachment.ContentId = prop.ReadValueAsString ();
Console.WriteLine ("Attachment Property: {0} = {1}", prop.PropertyTag.Id, attachment.ContentId);
break;
case TnefPropertyId.AttachDisposition:
text = prop.ReadValueAsString ();
if (attachment.ContentDisposition == null)
attachment.ContentDisposition = new ContentDisposition (text);
else
attachment.ContentDisposition.Disposition = text;
Console.WriteLine ("Attachment Property: {0} = {1}", prop.PropertyTag.Id, text);
break;
case TnefPropertyId.AttachMethod:
attachMethod = (TnefAttachMethod) prop.ReadValueAsInt32 ();
Console.WriteLine ("Attachment Property: {0} = {1}", prop.PropertyTag.Id, attachMethod);
break;
case TnefPropertyId.AttachMimeTag:
text = prop.ReadValueAsString ();
mimeType = text.Split ('/');
if (mimeType.Length == 2) {
attachment.ContentType.MediaType = mimeType[0].Trim ();
attachment.ContentType.MediaSubtype = mimeType[1].Trim ();
}
Console.WriteLine ("Attachment Property: {0} = {1}", prop.PropertyTag.Id, text);
break;
case TnefPropertyId.AttachFlags:
flags = (TnefAttachFlags) prop.ReadValueAsInt32 ();
if ((flags & TnefAttachFlags.RenderedInBody) != 0) {
if (attachment.ContentDisposition == null)
attachment.ContentDisposition = new ContentDisposition (ContentDisposition.Inline);
else
attachment.ContentDisposition.Disposition = ContentDisposition.Inline;
}
Console.WriteLine ("Attachment Property: {0} = {1}", prop.PropertyTag.Id, flags);
break;
case TnefPropertyId.AttachData:
var stream = prop.GetRawValueReadStream ();
var content = new MemoryStream ();
var guid = new byte[16];
if (attachMethod == TnefAttachMethod.EmbeddedMessage) {
var tnef = new TnefPart ();
foreach (var param in attachment.ContentType.Parameters)
tnef.ContentType.Parameters[param.Name] = param.Value;
if (attachment.ContentDisposition != null)
tnef.ContentDisposition = attachment.ContentDisposition;
attachment = tnef;
}
stream.Read (guid, 0, 16);
stream.CopyTo (content, 4096);
var buffer = content.GetBuffer ();
filter.Flush (buffer, 0, (int) content.Length, out outIndex, out outLength);
attachment.ContentTransferEncoding = filter.GetBestEncoding (EncodingConstraint.SevenBit);
attachment.ContentObject = new ContentObject (content);
filter.Reset ();
Console.WriteLine ("Attachment Property: {0} has GUID {1}", prop.PropertyTag.Id, new Guid (guid));
builder.Attachments.Add (attachment);
break;
case TnefPropertyId.DisplayName:
attachment.ContentType.Name = prop.ReadValueAsString ();
Console.WriteLine ("Attachment Property: {0} = {1}", prop.PropertyTag.Id, attachment.ContentType.Name);
break;
case TnefPropertyId.AttachSize:
if (attachment.ContentDisposition == null)
attachment.ContentDisposition = new ContentDisposition ();
attachment.ContentDisposition.Size = prop.ReadValueAsInt64 ();
Console.WriteLine ("Attachment Property: {0} = {1}", prop.PropertyTag.Id, attachment.ContentDisposition.Size.Value);
break;
default:
Console.WriteLine ("Attachment Property (unhandled): {0} = {1}", prop.PropertyTag.Id, prop.ReadValue ());
break;
}
}
break;
case TnefAttributeTag.AttachData:
Console.WriteLine ("Attachment Attribute: {0}", reader.AttributeTag);
if (attachment == null || attachMethod != TnefAttachMethod.ByValue)
break;
attachData = prop.ReadValueAsBytes ();
filter.Flush (attachData, 0, attachData.Length, out outIndex, out outLength);
attachment.ContentTransferEncoding = filter.GetBestEncoding (EncodingConstraint.SevenBit);
attachment.ContentObject = new ContentObject (new MemoryStream (attachData, false));
filter.Reset ();
builder.Attachments.Add (attachment);
break;
case TnefAttributeTag.AttachCreateDate:
time = prop.ReadValueAsDateTime ();
if (attachment != null) {
if (attachment.ContentDisposition == null)
attachment.ContentDisposition = new ContentDisposition ();
attachment.ContentDisposition.CreationDate = time;
}
Console.WriteLine ("Attachment Attribute: {0} = {1}", reader.AttributeTag, time);
break;
case TnefAttributeTag.AttachModifyDate:
time = prop.ReadValueAsDateTime ();
if (attachment != null) {
if (attachment.ContentDisposition == null)
attachment.ContentDisposition = new ContentDisposition ();
attachment.ContentDisposition.ModificationDate = time;
}
Console.WriteLine ("Attachment Attribute: {0} = {1}", reader.AttributeTag, time);
break;
case TnefAttributeTag.AttachTitle:
text = prop.ReadValueAsString ();
if (attachment != null && string.IsNullOrEmpty (attachment.FileName))
attachment.FileName = text;
Console.WriteLine ("Attachment Attribute: {0} = {1}", reader.AttributeTag, text);
break;
default:
Console.WriteLine ("Attachment Attribute (unhandled): {0} = {1}", reader.AttributeTag, prop.ReadValue ());
break;
}
} while (reader.ReadNextAttribute ());
}
static MimeMessage ExtractTnefMessage (TnefReader reader)
{
var builder = new BodyBuilder ();
var message = new MimeMessage ();
while (reader.ReadNextAttribute ()) {
if (reader.AttributeLevel == TnefAttributeLevel.Attachment)
break;
var prop = reader.TnefPropertyReader;
switch (reader.AttributeTag) {
case TnefAttributeTag.RecipientTable:
ExtractRecipientTable (reader, message);
break;
case TnefAttributeTag.MapiProperties:
ExtractMapiProperties (reader, message, builder);
break;
case TnefAttributeTag.DateSent:
message.Date = prop.ReadValueAsDateTime ();
break;
case TnefAttributeTag.Body:
builder.TextBody = prop.ReadValueAsString ();
break;
}
}
if (reader.AttributeLevel == TnefAttributeLevel.Attachment)
ExtractAttachments (reader, builder);
message.Body = builder.ToMessageBody ();
return message;
}
static void ExtractAttachments(TnefReader reader, BodyBuilder builder)
{
var attachMethod = TnefAttachMethod.ByValue;
var filter = new BestEncodingFilter();
var prop = reader.TnefPropertyReader;
MimePart attachment = null;
int outIndex, outLength;
byte[] attachData;
string text;
do
{
if (reader.AttributeLevel != TnefAttributeLevel.Attachment)
{
break;
}
switch (reader.AttributeTag)
{
case TnefAttributeTag.AttachRenderData:
attachMethod = TnefAttachMethod.ByValue;
attachment = new MimePart();
break;
case TnefAttributeTag.Attachment:
if (attachment == null)
{
break;
}
while (prop.ReadNextProperty())
{
switch (prop.PropertyTag.Id)
{
case TnefPropertyId.AttachLongFilename:
attachment.FileName = prop.ReadValueAsString();
break;
case TnefPropertyId.AttachFilename:
if (attachment.FileName == null)
{
attachment.FileName = prop.ReadValueAsString();
}
break;
case TnefPropertyId.AttachContentLocation:
text = prop.ReadValueAsString();
if (Uri.IsWellFormedUriString(text, UriKind.Absolute))
{
attachment.ContentLocation = new Uri(text, UriKind.Absolute);
}
else if (Uri.IsWellFormedUriString(text, UriKind.Relative))
{
attachment.ContentLocation = new Uri(text, UriKind.Relative);
}
break;
case TnefPropertyId.AttachContentBase:
text = prop.ReadValueAsString();
attachment.ContentBase = new Uri(text, UriKind.Absolute);
break;
case TnefPropertyId.AttachContentId:
attachment.ContentId = prop.ReadValueAsString();
break;
case TnefPropertyId.AttachDisposition:
text = prop.ReadValueAsString();
if (attachment.ContentDisposition == null)
{
attachment.ContentDisposition = new ContentDisposition(text);
}
else
{
attachment.ContentDisposition.Disposition = text;
}
break;
case TnefPropertyId.AttachData:
var stream = prop.GetRawValueReadStream();
var content = new MemoryStream();
var guid = new byte[16];
if (attachMethod == TnefAttachMethod.EmbeddedMessage)
{
var tnef = new TnefPart();
foreach (var param in attachment.ContentType.Parameters)
{
tnef.ContentType.Parameters.Add(param.Name, param.Value);
}
if (attachment.ContentDisposition != null)
{
tnef.ContentDisposition = attachment.ContentDisposition;
}
attachment = tnef;
}
// read the GUID
stream.Read(guid, 0, 16);
// the rest is content
stream.CopyTo(content, 4096);
#if !PORTABLE
var buffer = content.GetBuffer();
#else
var buffer = content.ToArray();
#endif
filter.Flush(buffer, 0, (int)content.Length, out outIndex, out outLength);
attachment.ContentTransferEncoding = filter.GetBestEncoding(EncodingConstraint.SevenBit);
attachment.ContentObject = new ContentObject(content);
filter.Reset();
builder.Attachments.Add(attachment);
break;
case TnefPropertyId.AttachMethod:
attachMethod = (TnefAttachMethod)prop.ReadValueAsInt32();
break;
case TnefPropertyId.AttachSize:
if (attachment.ContentDisposition == null)
{
attachment.ContentDisposition = new ContentDisposition();
}
attachment.ContentDisposition.Size = prop.ReadValueAsInt64();
break;
case TnefPropertyId.DisplayName:
attachment.ContentType.Name = prop.ReadValueAsString();
break;
}
}
break;
case TnefAttributeTag.AttachCreateDate:
if (attachment != null)
{
if (attachment.ContentDisposition == null)
{
attachment.ContentDisposition = new ContentDisposition();
}
attachment.ContentDisposition.CreationDate = prop.ReadValueAsDateTime();
}
break;
case TnefAttributeTag.AttachModifyDate:
if (attachment != null)
{
if (attachment.ContentDisposition == null)
{
attachment.ContentDisposition = new ContentDisposition();
}
attachment.ContentDisposition.ModificationDate = prop.ReadValueAsDateTime();
}
break;
case TnefAttributeTag.AttachTitle:
if (attachment != null && string.IsNullOrEmpty(attachment.FileName))
{
attachment.FileName = prop.ReadValueAsString();
}
break;
case TnefAttributeTag.AttachMetaFile:
if (attachment == null)
{
break;
}
// TODO: what to do with the meta data?
break;
case TnefAttributeTag.AttachData:
if (attachment == null || attachMethod != TnefAttachMethod.ByValue)
{
break;
}
attachData = prop.ReadValueAsBytes();
filter.Flush(attachData, 0, attachData.Length, out outIndex, out outLength);
attachment.ContentTransferEncoding = filter.GetBestEncoding(EncodingConstraint.EightBit);
attachment.ContentObject = new ContentObject(new MemoryStream(attachData, false));
filter.Reset();
builder.Attachments.Add(attachment);
break;
}
} while (reader.ReadNextAttribute());
}
