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 ());
}
/// <summary>
/// Calculates the most efficient content encoding given the specified constraint.
/// </summary>
/// <remarks>
/// If no <see cref="ContentObject"/> is set, <see cref="ContentEncoding.SevenBit"/> will be returned.
/// </remarks>
/// <returns>The most efficient content encoding.</returns>
/// <param name="constraint">The encoding constraint.</param>
/// <param name="maxLineLength">The maximum allowable length for a line (not counting the CRLF). Must be between <c>72</c> and <c>998</c> (inclusive).</param>
/// <param name="cancellationToken">A cancellation token.</param>
/// <exception cref="System.ArgumentOutOfRangeException">
/// <para><paramref name="maxLineLength"/> is not between <c>72</c> and <c>998</c> (inclusive).</para>
/// <para>-or-</para>
/// <para><paramref name="constraint"/> is not a valid value.</para>
/// </exception>
/// <exception cref="System.OperationCanceledException">
/// The operation was canceled via the cancellation token.
/// </exception>
/// <exception cref="System.IO.IOException">
/// An I/O error occurred.
/// </exception>
public ContentEncoding GetBestEncoding (EncodingConstraint constraint, int maxLineLength, CancellationToken cancellationToken = default (CancellationToken))
{
if (ContentObject == null)
return ContentEncoding.SevenBit;
using (var measure = new MeasuringStream ()) {
using (var filtered = new FilteredStream (measure)) {
var filter = new BestEncodingFilter ();
filtered.Add (filter);
ContentObject.DecodeTo (filtered, cancellationToken);
filtered.Flush ();
return filter.GetBestEncoding (constraint, maxLineLength);
}
}
}
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;
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 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 ());
}
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());
}
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;
}
