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());
}
static void LoadContent(MimePart attachment, Stream stream)
{
var content = new MemoryBlockStream();
if (attachment.ContentType.IsMimeType("text", "*"))
{
var filter = new BestEncodingFilter();
var buf = new byte[4096];
int index, length;
int nread;
while ((nread = stream.Read(buf, 0, buf.Length)) > 0)
{
filter.Filter(buf, 0, nread, out index, out length);
content.Write(buf, 0, nread);
}
filter.Flush(buf, 0, 0, out index, out length);
attachment.ContentTransferEncoding = filter.GetBestEncoding(EncodingConstraint.SevenBit);
}
else
{
attachment.ContentTransferEncoding = ContentEncoding.Base64;
stream.CopyTo(content, 4096);
}
content.Position = 0;
attachment.Content = new MimeContent(content);
}
void LoadContent(MimePart attachment, string fileName)
{
var content = new MemoryBlockStream();
var filter = new BestEncodingFilter();
using (var stream = File.OpenRead(fileName)) {
var buf = new byte[4096];
int index, length;
int nread;
while ((nread = stream.Read(buf, 0, buf.Length)) > 0)
{
filter.Filter(buf, 0, nread, out index, out length);
content.Write(buf, 0, nread);
}
filter.Flush(buf, 0, 0, out index, out length);
}
content.Position = 0;
if (linked)
{
attachment.ContentLocation = new Uri(Path.GetFileName(fileName), UriKind.Relative);
}
attachment.ContentTransferEncoding = filter.GetBestEncoding(EncodingConstraint.SevenBit);
attachment.ContentObject = new ContentObject(content, ContentEncoding.Default);
}
private bool StoreEntities(OutgoingEmail email, List <string> attachmentList)
{
foreach (string iter in attachmentList)
{
FileStream stream = File.OpenRead(iter);
if (!stream.CanRead)
{
return(false);
}
string mimeType = MimeTypes.GetMimeType(iter);
ContentType fileType = ContentType.Parse(mimeType);
MimePart attachment;
if (fileType.IsMimeType("text", "*"))
{
attachment = new TextPart(fileType.MediaSubtype);
foreach (var param in fileType.Parameters)
{
attachment.ContentType.Parameters.Add(param);
}
}
else
{
attachment = new MimePart(fileType);
}
attachment.FileName = Path.GetFileName(iter);
attachment.IsAttachment = true;
MemoryBlockStream memoryBlockStream = new MemoryBlockStream();
BestEncodingFilter encodingFilter = new BestEncodingFilter();
byte[] fileBuffer = new byte[4096];
int index, length, bytesRead;
while ((bytesRead = stream.Read(fileBuffer, 0, fileBuffer.Length)) > 0)
{
encodingFilter.Filter(fileBuffer, 0, bytesRead, out index, out length);
memoryBlockStream.Write(fileBuffer, 0, bytesRead);
}
encodingFilter.Flush(fileBuffer, 0, 0, out index, out length);
memoryBlockStream.Position = 0;
attachment.ContentTransferEncoding = encodingFilter.GetBestEncoding(EncodingConstraint.SevenBit);
attachment.ContentObject = new ContentObject(memoryBlockStream);
if (attachment != null)
{
email.AttachmentList.Add(attachment);
}
}
return(true);
}
void LoadContent(MimePart attachment, string fileName, byte[] data)
{
var content = new MemoryBlockStream();
var filter = new BestEncodingFilter();
int index, length;
filter.Flush(data, 0, data.Length, out index, out length);
content.Write(data, 0, data.Length);
content.Position = 0;
if (linked)
{
attachment.ContentLocation = new Uri(Path.GetFileName(fileName), UriKind.Relative);
}
attachment.ContentTransferEncoding = filter.GetBestEncoding(EncodingConstraint.SevenBit);
attachment.ContentObject = new ContentObject(content, ContentEncoding.Default);
}
static void LoadContent(MimePart attachment, Stream stream)
{
var content = new MemoryBlockStream();
var filter = new BestEncodingFilter();
var buf = new byte[4096];
int index, length;
int nread;
while ((nread = stream.Read(buf, 0, buf.Length)) > 0)
{
filter.Filter(buf, 0, nread, out index, out length);
content.Write(buf, 0, nread);
}
filter.Flush(buf, 0, 0, out index, out length);
content.Position = 0;
attachment.ContentTransferEncoding = filter.GetBestEncoding(EncodingConstraint.SevenBit);
attachment.ContentObject = new ContentObject(content);
}
static async Task LoadContentAsync(MimePart attachment, Stream stream, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
var content = new MemoryBlockStream();
if (attachment.ContentType.IsMimeType("text", "*"))
{
var buf = ArrayPool <byte> .Shared.Rent(BufferLength);
var filter = new BestEncodingFilter();
int index, length;
int nread;
try {
while ((nread = await stream.ReadAsync(buf, 0, BufferLength, cancellationToken).ConfigureAwait(false)) > 0)
{
cancellationToken.ThrowIfCancellationRequested();
filter.Filter(buf, 0, nread, out index, out length);
content.Write(buf, 0, nread);
}
filter.Flush(buf, 0, 0, out index, out length);
} finally {
ArrayPool <byte> .Shared.Return(buf);
}
attachment.ContentTransferEncoding = filter.GetBestEncoding(EncodingConstraint.SevenBit);
}
else
{
attachment.ContentTransferEncoding = ContentEncoding.Base64;
await stream.CopyToAsync(content, 4096, cancellationToken).ConfigureAwait(false);
}
content.Position = 0;
attachment.Content = new MimeContent(content);
}
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.Content = new MimeContent(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.Content = new MimeContent(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;
//case TnefAttributeTag.AttachMetaFile:
// break;
default:
var type = prop.ValueType;
var value = prop.ReadValue();
//Console.WriteLine ("Attachment Attribute (unhandled): {0} = {1}", reader.AttributeTag, value);
Assert.AreEqual(type, value.GetType(), "Unexpected value type for {0}: {1}", reader.AttributeTag, value.GetType().Name);
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.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 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());
}
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());
}
