public async Task<List<Body>> GetBodies(IByteStreamReader streamReader, ContentTypeFieldValue contentType, string transportEncoding)
{
var reader = new BufferedByteReader(streamReader);
switch (contentType.Type)
{
case "multipart":
var bodyPartReader = new BodyReader(ContentType, Header.ContentTransferEncoding);
var bodies = await bodyPartReader.ReadBody(reader);
break;
case "text":
var textString = "";
using (var memstream = await streamReader.GetMemoryStreamAsync())
{
using (var unEncoded = await MailMethods.UnEncode(memstream, Header.ContentTransferEncoding))
{
using (var textReader = new StreamReader(unEncoded, Encoding.GetEncoding(Header.ContentType.Charset)))
{
textString = await textReader.ReadToEndAsync();
}
}
}
var textBody = new Body();
textBody.Content = (new MemoryStream(Encoding.Unicode.GetBytes(textString)));
break;
case "image":
case "audio":
case "video":
case "application":
var binaryBody = new Body();
binaryBody.Content = await streamReader.GetMemoryStreamAsync());
break;
}
}
public async Task ReadHeader(BufferedByteReader reader)
{
var fieldName = new HeaderFieldName();
var endType = FieldValue.EndType.None;
var ignore = new HeaderIgnoreFieldValue();
while (endType != FieldValue.EndType.EndOfHeader)
{
var name = await fieldName.ReadFieldName(reader);
switch (name)
{
case "From":
From = new AddressListFieldValue();
endType = await From.ReadFieldValue(reader);
break;
case "Sender":
var sender = new AddressListFieldValue();
endType = await sender.ReadFieldValue(reader);
Sender = sender.Adresses[0];
break;
case "Reply-To":
ReplyTo = new AddressListFieldValue();
endType = await ReplyTo.ReadFieldValue(reader);
break;
case "To":
To = new AddressListFieldValue();
endType = await To.ReadFieldValue(reader);
break;
case "CC":
Cc = new AddressListFieldValue();
endType = await Cc.ReadFieldValue(reader);
break;
case "Date":
var dateField = new DateFieldValue();
endType = await dateField.ReadFieldValue(reader);
OrigDate = dateField.Value;
break;
case "Message-ID":
var ids = new IdentificationFieldValue();
endType = await ids.ReadFieldValue(reader);
MessageId = ids.Identifiers[0];
break;
case "In-Reply-To":
InReplyTo = new IdentificationFieldValue();
endType = await InReplyTo.ReadFieldValue(reader);
break;
case "References":
References = new IdentificationFieldValue();
endType = await References.ReadFieldValue(reader);
break;
case "Subject":
var subject = new UnstructuredTextFieldValue();
endType = await subject.ReadFieldValue(reader);
Subject = subject.Value;
break;
case "Comments":
var comments = new UnstructuredTextFieldValue();
endType = await comments.ReadFieldValue(reader);
Subject = comments.Value;
break;
case "Content-type":
ContentType = new ContentTypeFieldValue();
endType = await ContentType.ReadFieldValue(reader);
break;
case "Content-transfer-encoding":
var contentTransferEncoding = new MimeFieldFieldValue();
ContentTransferEncoding = await contentTransferEncoding.ReadFieldValue(reader);
endType = contentTransferEncoding.TypOfEnd;
break;
case "Content-ID":
var newid = new IdentificationFieldValue();
endType = await newid.ReadFieldValue(reader).ConfigureAwait(false);
ContentId = newid.Identifiers[0];
break;
case "Content-description":
var description = new UnstructuredTextFieldValue();
endType = await description.ReadFieldValue(reader);
ContentDescription = description.Value;
break;
default:
endType = await ignore.ReadFieldValue(reader);
break;
}
}
}
private readonly byte[] _boundaryStart = new byte[4] { 13, 10, 45, 45 }; // "\r\n--"
internal BodyReader(ContentTypeFieldValue contentType, string encoding, List<byte[]> boundaries)
{
Boundaries = boundaries;
}
public async Task ReadHeader( BufferedByteReader reader)
{
var fieldName = new HeaderFieldName();
var endType = FieldValue.EndType.None;
var ignore = new HeaderIgnoreFieldValue();
while (endType != FieldValue.EndType.EndOfHeader)
{
var name = await fieldName.ReadFieldName(reader);
switch (name)
{
case "From":
From = new AddressListFieldValue();
endType = await From.ReadFieldValue(reader);
break;
case "Sender":
var sender = new AddressListFieldValue();
endType = await sender.ReadFieldValue(reader);
Sender = sender.Adresses[0];
break;
case "Reply-To":
ReplyTo = new AddressListFieldValue();
endType = await ReplyTo.ReadFieldValue(reader);
break;
case "To":
To = new AddressListFieldValue();
endType = await To.ReadFieldValue(reader);
break;
case "CC":
Cc = new AddressListFieldValue();
endType = await Cc.ReadFieldValue(reader);
break;
case "Date":
var dateField = new DateFieldValue();
endType = await dateField.ReadFieldValue(reader);
OrigDate = dateField.Value;
break;
case "Message-ID":
var ids = new IdentificationFieldValue();
endType = await ids.ReadFieldValue(reader);
MessageId = ids.Identifiers[0];
break;
case "In-Reply-To":
InReplyTo = new IdentificationFieldValue();
endType = await InReplyTo.ReadFieldValue(reader);
break;
case "References":
References = new IdentificationFieldValue();
endType = await References.ReadFieldValue(reader);
break;
case "Subject":
var subject = new UnstructuredTextFieldValue();
endType = await subject.ReadFieldValue(reader);
Subject = subject.Value;
break;
case "Comments":
var comments = new UnstructuredTextFieldValue();
endType = await comments.ReadFieldValue(reader);
Subject = comments.Value;
break;
case "Content-type":
ContentType = new ContentTypeFieldValue();
endType = await ContentType.ReadFieldValue(reader);
break;
case "Content-transfer-encoding":
var contentTransferEncoding = new MimeFieldFieldValue();
ContentTransferEncoding = await contentTransferEncoding.ReadFieldValue(reader);
endType = contentTransferEncoding.TypOfEnd;
break;
case "Content-ID":
var newid = new IdentificationFieldValue();
endType = await newid.ReadFieldValue(reader).ConfigureAwait(false);
ContentId = newid.Identifiers[0];
break;
case "Content-description":
var description = new UnstructuredTextFieldValue();
endType = await description.ReadFieldValue(reader);
ContentDescription = description.Value;
break;
default:
endType = await ignore.ReadFieldValue(reader);
break;
}
}
}
