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A .NET MIME creation and parser library with support for S/MIME, PGP, DKIM, TNEF and Unix mbox spools.

Home Page: http://www.mimekit.net

License: MIT License

C# 77.15% Shell 0.01% HTML 22.71% Batchfile 0.01% PowerShell 0.08% Rich Text Format 0.04% Dockerfile 0.01%

c-sharp email mime parser mime-parser mbox pgp smime dkim tnef

mimekit's People

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adminnz fogzot nachocove migueldeicaza sscctech princeoffoods anaselhajjaji abock vdaron muraad amudhauday09 daldegam erikporter mahet sir0x1 sergheim lewing richard2753 luiseduardohdbackup grufffta gphummer matty666 wushian incite bigsan zendbit jamisonwhite tfreitasleal dinowang madaleno felix-china baohaojun ahzf divyang4481 redth joshuahealy erinstone hugohallqvist xcom2000 knocte tablesmit pvanhoof zakibrahim fjnogueira cyberspaceru lakerfield jdasilva ruffin-- workwebresources angleafro yukine maxwe11 naeemkhedarun matt2005 divan-9 gitter-badger frostytear surekqomi aldeaalexandra andyhebear agamat cnzgray dcga vnexter shubhamkumarnayak gitjcy rene1018 jomarsupsup mwuerth dsbenghe killercodes pingmantools cybercircuits lisaj nangal one75 virus-x kalvotron nufyoot biohazard999 modulexcite duncansmart zone117x amesianx liquidboy dandude0 dudb mike-nelson smallkid jsdragon blinds52 popotans thorhalvor aggiekev02 manuel11g dusk0r clrsdream stantoxt jvitkauskas yeaicc

mimekit's Issues

Empty headers malformated when encoding

Hi there,

It appears that if the From or To headers don't have any entries, they are missing a line-feed after it is serialized. For example:

From: Test User <[email protected]>
To:Date: Thu, 26 Jun 2014 08:42:48 -0500
Subject: This is the subject
Message-Id: <aa9ab005-29e8-9ca2-0a0a-a1f3b8667d05@example>
Cc: Test User <[email protected]>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8

This is the body.

was generated by the code

MimeMessage message = new MimeMessage();
message.Date = DateTime.Now;
message.Subject = "This is the subject";
message.From.Add(new MailboxAddress("Test User", "[email protected]"));
message.Cc.Add(new MailboxAddress("Test User", "[email protected]"));

message.Body = new TextPart() { Text = "This is the body." };

using (MemoryStream ms = new MemoryStream())
{
    message.WriteTo(ms);

    string mimeEncoded = Encoding.ASCII.GetString(ms.ToArray());
    Console.WriteLine(mimeEncoded);
}

Parsing has been working great, though!

Issue decoding headers not properly rfc2047 encoded

Probably can't be considered a bug as such, but I wanted to hear your thoughts on it.

Consider an email with these headers:

Content-type: text/plain; charset=koi8-r
Subject: äÅÓÑÔËÁ áÎÅËÄÏÔÏ× äÎÑ

If subject is decoded using MimeKit, it's not "properly" decoded to: Десятка Анекдотов Дня. From what I understand this is because the subject header is not properly rfc2047 encoded. Decoding using koi8-r decodes it properly.

I'm thinking one could decode the subject (or other headers) using the content-type charset, if set, if the header doesn't explicitly say what charset it's using?
But I suppose that's more of an IMAP client issue (that I'm incidentally working on) than a MimeKit issue? :)

MimeMessage.Sender is an InternetAddressList, expected: InternetAddress

RFC-5322 section 3.6.2 defines the From and Sender headers. From is a list of authors, Sender is the transmitting author. Sender is required anytime From has more than one author.

In MimeKit, is Sender implemented as a list because it needs to support things that don't comply with RFC-5322?

Split crypto support into a separate assembly

Crypto support brings a lot of unnecessary bloat (BouncyCastle + Mono.Data.Sqlite) if you're not writing a full blown mail client or something. I'm using MimeKit to handle multipart/form-data messages over HTTP and have no need for crypto.

It would be very nice to have a layout like:

MimeKit.dll (contains all of MimeKit with crypto)
MimeKit.Crypto.dll (contains only the crypto parts and references MimeKit.dll)

Or:

MimeKit.dll (contains all of MimeKit including crypto)
MimeKitLite.dll (contains all of MimeKit without crypto)

Create MimeKit.Lite Nuget Package

I'm using MimeKit for Papercut (http://papercut.codeplex.com) because it's fast and excellent. No reason to reinvent the wheel with something superior and MIT licensed out there...

But I don't need the encryption stuff.

If you don't have any interest, I don't mind doing it.

Thanks for the excellent lib.

"References" header saved without < and >

If I do something like this:

reply.InReplyTo = msg.MessageId;
reply.References.Add(msg.MessageId);
reply.WriteTo(stream);

The resulting file has:

In-Reply-To: <[email protected]>
References: [email protected]

I.e. the References header is missing the < and > characters.

Provide MimeEntity.Load with a contentType parameter

When using MimeKit for parsing HTTP content, the Content-Type header will have been removed from the stream already as part of the HTTP header parsing, leaving only the request body data in the stream to consume (at least in all sane/popular frameworks).

This is problematic because MimeKit needs this particular header when parsing. While easy to work around (especially thanks to ChainedStream to avoid copying the entire request body into memory first), it is very non-obvious what the problem is when one might first decide to mix HTTP and MimeKit.

I suggest an API overload for MimeEntity.Load:

MimeEntity.Load (request.InputStream, contentType: request.ContentType)

As a workaround, I have done the following in my production code for now:

var contentType = String.Format ("Content-Type: {0}\r\n\r\n", request.ContentType);
var chainedStream = new ChainedStream ();
chainedStream.Add (new MemoryStream (Encoding.UTF8.GetBytes (contentType)));
chainedStream.Add (request.InputStream);

var multipart = MimeEntity.Load (chainedStream) as Multipart;
...

WriteTo writes 0 (NUL) values.

Hi again

I've just tested the changes with a "large" file (~11kb) - and it looks like that some values from the original stream/data are being replaced with 0 (NUL) when using the WriteTo method.

Below is a small test-project to reproduce the problem. I can't figure out where and why this happens...

    private static void TestCompleteMessage()
    {
        // Input for complete message
        var input = new byte[] { 67, 111, 110, 116, 101, 110, 116, 45, 84, 121, 112, 101, 58, 32, 109, 117, 108, 116, 105, 112, 97, 114, 116, 47, 115, 105, 103, 110, 101, 100, 59, 32, 112, 114, 111, 116, 111, 99, 111, 108, 61, 34, 97, 112, 112, 108, 105, 99, 97, 116, 105, 111, 110, 47, 112, 107, 99, 115, 55, 45, 115, 105, 103, 110, 97, 116, 117, 114, 101, 34, 59, 32, 109, 105, 99, 97, 108, 103, 61, 34, 115, 104, 97, 49, 34, 59, 13, 10, 32, 98, 111, 117, 110, 100, 97, 114, 121, 61, 34, 95, 53, 55, 54, 70, 67, 49, 49, 66, 45, 51, 52, 50, 57, 45, 52, 56, 67, 52, 45, 65, 51, 54, 57, 45, 56, 69, 51, 49, 67, 65, 50, 54, 57, 57, 53, 70, 95, 34, 13, 10, 13, 10, 45, 45, 95, 53, 55, 54, 70, 67, 49, 49, 66, 45, 51, 52, 50, 57, 45, 52, 56, 67, 52, 45, 65, 51, 54, 57, 45, 56, 69, 51, 49, 67, 65, 50, 54, 57, 57, 53, 70, 95, 13, 10, 67, 111, 110, 116, 101, 110, 116, 45, 84, 121, 112, 101, 58, 32, 97, 112, 112, 108, 105, 99, 97, 116, 105, 111, 110, 47, 101, 100, 105, 102, 97, 99, 116, 13, 10, 67, 111, 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45, 49, 55, 84, 48, 52, 58, 48, 48, 90, 34, 47, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 60, 68, 105, 114, 101, 99, 116, 105, 111, 110, 32, 118, 61, 34, 90, 48, 50, 34, 47, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 60, 81, 117, 97, 110, 116, 105, 116, 121, 32, 118, 61, 34, 48, 34, 47, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 60, 77, 101, 97, 115, 117, 114, 101, 85, 110, 105, 116, 32, 118, 61, 34, 75, 87, 49, 34, 47, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 60, 47, 80, 101, 114, 105, 111, 100, 62, 13, 10, 32, 32, 32, 32, 32, 32, 60, 47, 67, 111, 110, 110, 101, 99, 116, 105, 111, 110, 80, 111, 105, 110, 116, 73, 110, 102, 111, 114, 109, 97, 116, 105, 111, 110, 62, 13, 10, 32, 32, 32, 32, 32, 32, 60, 67, 111, 110, 110, 101, 99, 116, 105, 111, 110, 80, 111, 105, 110, 116, 73, 110, 102, 111, 114, 109, 97, 116, 105, 111, 110, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 60, 76, 105, 110, 101, 78, 117, 109, 98, 101, 114, 32, 118, 61, 34, 49, 54, 34, 47, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 60, 83, 116, 97, 116, 117, 115, 32, 118, 61, 34, 49, 52, 71, 34, 47, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 60, 67, 111, 110, 110, 101, 99, 116, 105, 111, 110, 80, 111, 105, 110, 116, 32, 99, 111, 100, 105, 110, 103, 83, 99, 104, 101, 109, 101, 61, 34, 51, 48, 53, 34, 32, 118, 61, 34, 50, 49, 90, 48, 48, 48, 48, 48, 48, 48, 48, 48, 50, 51, 56, 77, 34, 47, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 60, 69, 120, 116, 101, 114, 110, 97, 108, 83, 104, 105, 112, 112, 101, 114, 65, 99, 99, 111, 117, 110, 116, 32, 99, 111, 100, 105, 110, 103, 83, 99, 104, 101, 109, 101, 61, 34, 90, 83, 79, 34, 32, 118, 61, 34, 68, 83, 48, 48, 48, 48, 49, 53, 34, 47, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 60, 73, 110, 116, 101, 114, 110, 97, 108, 83, 104, 105, 112, 112, 101, 114, 65, 99, 99, 111, 117, 110, 116, 32, 99, 111, 100, 105, 110, 103, 83, 99, 104, 101, 109, 101, 61, 34, 90, 83, 79, 34, 32, 118, 61, 34, 76, 84, 48, 48, 48, 48, 48, 55, 34, 47, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 60, 80, 101, 114, 105, 111, 100, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 60, 84, 105, 109, 101, 73, 110, 116, 101, 114, 118, 97, 108, 32, 118, 61, 34, 50, 48, 49, 49, 45, 48, 56, 45, 49, 54, 84, 48, 52, 58, 48, 48, 90, 47, 50, 48, 49, 49, 45, 48, 56, 45, 49, 55, 84, 48, 52, 58, 48, 48, 90, 34, 47, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 60, 68, 105, 114, 101, 99, 116, 105, 111, 110, 32, 118, 61, 34, 90, 48, 50, 34, 47, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 60, 81, 117, 97, 110, 116, 105, 116, 121, 32, 118, 61, 34, 48, 34, 47, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 60, 77, 101, 97, 115, 117, 114, 101, 85, 110, 105, 116, 32, 118, 61, 34, 75, 87, 49, 34, 47, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 60, 47, 80, 101, 114, 105, 111, 100, 62, 13, 10, 32, 32, 32, 32, 32, 32, 60, 47, 67, 111, 110, 110, 101, 99, 116, 105, 111, 110, 80, 111, 105, 110, 116, 73, 110, 102, 111, 114, 109, 97, 116, 105, 111, 110, 62, 13, 10, 32, 32, 32, 32, 32, 32, 60, 67, 111, 110, 110, 101, 99, 116, 105, 111, 110, 80, 111, 105, 110, 116, 73, 110, 102, 111, 114, 109, 97, 116, 105, 111, 110, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 60, 76, 105, 110, 101, 78, 117, 109, 98, 101, 114, 32, 118, 61, 34, 49, 55, 34, 47, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 60, 83, 116, 97, 116, 117, 115, 32, 118, 61, 34, 49, 52, 71, 34, 47, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 60, 67, 111, 110, 110, 101, 99, 116, 105, 111, 110, 80, 111, 105, 110, 116, 32, 99, 111, 100, 105, 110, 103, 83, 99, 104, 101, 109, 101, 61, 34, 51, 48, 53, 34, 32, 118, 61, 34, 50, 49, 90, 48, 48, 48, 48, 48, 48, 48, 48, 48, 50, 51, 56, 77, 34, 47, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 60, 69, 120, 116, 101, 114, 110, 97, 108, 83, 104, 105, 112, 112, 101, 114, 65, 99, 99, 111, 117, 110, 116, 32, 99, 111, 100, 105, 110, 103, 83, 99, 104, 101, 109, 101, 61, 34, 90, 83, 79, 34, 32, 118, 61, 34, 68, 83, 48, 48, 48, 48, 48, 56, 34, 47, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 60, 73, 110, 116, 101, 114, 110, 97, 108, 83, 104, 105, 112, 112, 101, 114, 65, 99, 99, 111, 117, 110, 116, 32, 99, 111, 100, 105, 110, 103, 83, 99, 104, 101, 109, 101, 61, 34, 90, 83, 79, 34, 32, 118, 61, 34, 76, 84, 48, 48, 48, 48, 48, 52, 34, 47, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 60, 80, 101, 114, 105, 111, 100, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 60, 84, 105, 109, 101, 73, 110, 116, 101, 114, 118, 97, 108, 32, 118, 61, 34, 50, 48, 49, 49, 45, 48, 56, 45, 49, 54, 84, 48, 52, 58, 48, 48, 90, 47, 50, 48, 49, 49, 45, 48, 56, 45, 49, 55, 84, 48, 52, 58, 48, 48, 90, 34, 47, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 60, 68, 105, 114, 101, 99, 116, 105, 111, 110, 32, 118, 61, 34, 90, 48, 50, 34, 47, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 60, 81, 117, 97, 110, 116, 105, 116, 121, 32, 118, 61, 34, 48, 34, 47, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 60, 77, 101, 97, 115, 117, 114, 101, 85, 110, 105, 116, 32, 118, 61, 34, 75, 87, 49, 34, 47, 62, 13, 10, 32, 32, 32, 32, 32, 32, 32, 32, 60, 47, 80, 101, 114, 105, 111, 100, 62, 13, 10, 32, 32, 32, 32, 32, 32, 60, 47, 67, 111, 110, 110, 101, 99, 116, 105, 111, 110, 80, 111, 105, 110, 116, 73, 110, 102, 111, 114, 109, 97, 116, 105, 111, 110, 62, 13, 10, 32, 32, 32, 32, 60, 47, 68, 101, 108, 105, 118, 101, 114, 121, 79, 114, 100, 101, 114, 62, 13, 10, 32, 32, 60, 47, 98, 111, 100, 121, 62, 13, 10, 60, 47, 110, 115, 48, 58, 65, 83, 50, 95, 101, 110, 118, 101, 108, 111, 112, 101, 62, 13, 10, 13, 10, 45, 45, 95, 53, 55, 54, 70, 67, 49, 49, 66, 45, 51, 52, 50, 57, 45, 52, 56, 67, 52, 45, 65, 51, 54, 57, 45, 56, 69, 51, 49, 67, 65, 50, 54, 57, 57, 53, 70, 95, 13, 10, 67, 111, 110, 116, 101, 110, 116, 45, 116, 121, 112, 101, 58, 32, 97, 112, 112, 108, 105, 99, 97, 116, 105, 111, 110, 47, 112, 107, 99, 115, 55, 45, 115, 105, 103, 110, 97, 116, 117, 114, 101, 59, 32, 110, 97, 109, 101, 61, 34, 115, 109, 105, 109, 101, 46, 112, 55, 115, 34, 13, 10, 67, 111, 110, 116, 101, 110, 116, 45, 84, 114, 97, 110, 115, 102, 101, 114, 45, 69, 110, 99, 111, 100, 105, 110, 103, 58, 32, 98, 97, 115, 101, 54, 52, 13, 10, 13, 10, 77, 73, 65, 71, 67, 83, 113, 71, 83, 73, 98, 51, 68, 81, 69, 72, 65, 113, 67, 65, 77, 73, 65, 67, 65, 81, 69, 120, 67, 122, 65, 74, 66, 103, 85, 114, 68, 103, 77, 67, 71, 103, 85, 65, 77, 73, 65, 71, 67, 83, 113, 71, 83, 73, 98, 51, 68, 81, 69, 72, 65, 81, 65, 65, 111, 73, 73, 67, 56, 84, 67, 67, 65, 117, 48, 119, 13, 10, 103, 103, 74, 87, 111, 65, 77, 67, 65, 81, 73, 67, 69, 81, 67, 50, 70, 86, 118, 54, 89, 97, 115, 50, 52, 43, 74, 109, 122, 51, 90, 120, 48, 120, 70, 47, 77, 65, 48, 71, 67, 83, 113, 71, 83, 73, 98, 51, 68, 81, 69, 66, 66, 81, 85, 65, 77, 67, 103, 120, 69, 106, 65, 81, 66, 103, 78, 86, 66, 65, 77, 77, 67, 87, 86, 107, 13, 10, 97, 87, 78, 115, 97, 87, 86, 117, 100, 68, 69, 83, 77, 66, 65, 71, 65, 49, 85, 69, 67, 103, 119, 74, 90, 87, 82, 112, 89, 50, 120, 112, 90, 87, 53, 48, 77, 66, 52, 88, 68, 84, 69, 120, 77, 68, 89, 120, 78, 68, 69, 121, 78, 68, 107, 121, 77, 70, 111, 88, 68, 84, 73, 120, 77, 68, 89, 120, 78, 68, 69, 121, 78, 68, 107, 121, 13, 10, 77, 70, 111, 119, 97, 68, 69, 83, 77, 66, 65, 71, 65, 49, 85, 69, 65, 119, 119, 74, 90, 87, 82, 112, 89, 50, 120, 112, 90, 87, 53, 48, 77, 82, 73, 119, 69, 65, 89, 68, 86, 81, 81, 75, 68, 65, 108, 108, 90, 71, 108, 106, 98, 71, 108, 108, 98, 110, 81, 120, 68, 106, 65, 77, 66, 103, 78, 86, 66, 65, 99, 77, 66, 86, 90, 108, 13, 10, 97, 109, 120, 108, 77, 83, 69, 119, 72, 119, 89, 74, 75, 111, 90, 73, 104, 118, 99, 78, 65, 81, 107, 66, 70, 104, 74, 112, 98, 109, 90, 118, 81, 71, 82, 114, 76, 87, 100, 104, 100, 71, 86, 51, 89, 88, 107, 117, 90, 71, 115, 120, 67, 122, 65, 74, 66, 103, 78, 86, 66, 65, 89, 84, 65, 107, 82, 76, 77, 73, 73, 66, 73, 106, 65, 78, 13, 10, 66, 103, 107, 113, 104, 107, 105, 71, 57, 119, 48, 66, 65, 81, 69, 70, 65, 65, 79, 67, 65, 81, 56, 65, 77, 73, 73, 66, 67, 103, 75, 67, 65, 81, 69, 65, 108, 70, 118, 118, 87, 89, 104, 80, 110, 71, 57, 49, 69, 100, 79, 81, 109, 80, 49, 122, 107, 76, 122, 49, 53, 68, 56, 109, 117, 51, 104, 105, 71, 53, 68, 54, 105, 66, 109, 115, 13, 10, 89, 53, 85, 67, 73, 71, 109, 65, 117, 117, 80, 119, 118, 106, 73, 49, 106, 79, 104, 108, 104, 100, 83, 57, 108, 89, 81, 111, 115, 108, 78, 77, 114, 50, 115, 80, 75, 113, 66, 103, 109, 116, 50, 106, 105, 53, 78, 114, 109, 110, 67, 56, 72, 71, 51, 110, 100, 84, 51, 115, 100, 105, 116, 57, 97, 50, 102, 89, 105, 99, 121, 107, 90, 116, 88, 122, 13, 10, 66, 115, 52, 109, 104, 52, 105, 118, 111, 113, 100, 122, 86, 90, 79, 117, 71, 50, 74, 86, 106, 50, 57, 122, 99, 86, 57, 66, 99, 55, 73, 76, 81, 85, 73, 53, 111, 72, 50, 85, 106, 68, 120, 113, 111, 65, 106, 99, 90, 112, 57, 117, 122, 86, 107, 57, 98, 47, 99, 101, 116, 98, 112, 66, 77, 74, 48, 80, 90, 87, 117, 102, 75, 107, 121, 113, 13, 10, 80, 117, 48, 81, 100, 101, 52, 81, 52, 78, 43, 72, 105, 88, 67, 115, 77, 77, 71, 119, 83, 119, 78, 70, 56, 113, 108, 106, 82, 98, 47, 101, 115, 102, 70, 57, 112, 69, 120, 122, 78, 51, 116, 115, 67, 122, 65, 97, 77, 101, 73, 55, 51, 105, 70, 107, 53, 87, 73, 78, 66, 90, 76, 101, 100, 88, 104, 115, 122, 115, 89, 79, 71, 88, 115, 74, 13, 10, 103, 114, 75, 49, 82, 66, 89, 47, 56, 76, 90, 70, 65, 104, 82, 56, 74, 112, 72, 52, 87, 99, 98, 90, 102, 75, 120, 90, 52, 50, 122, 121, 84, 65, 117, 80, 81, 77, 85, 70, 118, 88, 79, 79, 118, 51, 79, 110, 87, 89, 53, 120, 103, 104, 81, 118, 100, 72, 103, 43, 99, 118, 65, 86, 116, 50, 77, 47, 47, 73, 74, 86, 98, 81, 73, 68, 13, 10, 65, 81, 65, 66, 111, 49, 77, 119, 85, 84, 65, 100, 66, 103, 78, 86, 72, 81, 52, 69, 70, 103, 81, 85, 114, 66, 117, 116, 87, 54, 43, 113, 86, 97, 69, 72, 107, 56, 78, 51, 109, 98, 102, 72, 57, 113, 67, 110, 71, 99, 107, 119, 68, 103, 89, 68, 86, 82, 48, 80, 65, 81, 72, 47, 66, 65, 81, 68, 65, 103, 83, 119, 77, 67, 65, 71, 13, 10, 65, 49, 85, 100, 74, 81, 69, 66, 47, 119, 81, 87, 77, 66, 81, 71, 67, 67, 115, 71, 65, 81, 85, 70, 66, 119, 77, 67, 66, 103, 103, 114, 66, 103, 69, 70, 66, 81, 99, 68, 66, 68, 65, 78, 66, 103, 107, 113, 104, 107, 105, 71, 57, 119, 48, 66, 65, 81, 85, 70, 65, 65, 79, 66, 103, 81, 66, 86, 67, 56, 110, 104, 110, 89, 69, 53, 13, 10, 48, 74, 86, 121, 79, 110, 56, 72, 90, 112, 52, 113, 101, 51, 101, 106, 83, 100, 97, 119, 108, 56, 74, 50, 43, 107, 67, 82, 120, 80, 51, 57, 106, 57, 108, 106, 111, 116, 98, 111, 84, 82, 84, 67, 78, 54, 48, 55, 69, 89, 72, 113, 82, 115, 66, 56, 106, 85, 104, 101, 70, 117, 98, 106, 104, 80, 120, 86, 81, 118, 114, 57, 90, 50, 55, 48, 13, 10, 69, 82, 73, 79, 50, 67, 89, 109, 47, 102, 80, 88, 113, 114, 55, 79, 49, 66, 103, 51, 88, 100, 50, 98, 55, 118, 120, 80, 51, 104, 72, 71, 88, 108, 115, 109, 56, 113, 51, 88, 120, 102, 74, 85, 74, 78, 108, 84, 89, 66, 81, 53, 83, 53, 108, 122, 55, 67, 74, 86, 102, 111, 73, 109, 120, 120, 67, 83, 52, 49, 101, 121, 50, 81, 54, 113, 13, 10, 109, 117, 80, 81, 56, 120, 49, 52, 107, 106, 71, 67, 65, 87, 81, 119, 103, 103, 70, 103, 65, 103, 69, 66, 77, 68, 48, 119, 75, 68, 69, 83, 77, 66, 65, 71, 65, 49, 85, 69, 65, 119, 119, 74, 90, 87, 82, 112, 89, 50, 120, 112, 90, 87, 53, 48, 77, 82, 73, 119, 69, 65, 89, 68, 86, 81, 81, 75, 68, 65, 108, 108, 90, 71, 108, 106, 13, 10, 98, 71, 108, 108, 98, 110, 81, 67, 69, 81, 67, 50, 70, 86, 118, 54, 89, 97, 115, 50, 52, 43, 74, 109, 122, 51, 90, 120, 48, 120, 70, 47, 77, 65, 107, 71, 66, 83, 115, 79, 65, 119, 73, 97, 66, 81, 65, 119, 68, 81, 89, 74, 75, 111, 90, 73, 104, 118, 99, 78, 65, 81, 69, 66, 66, 81, 65, 69, 103, 103, 69, 65, 80, 86, 85, 104, 13, 10, 50, 112, 77, 57, 55, 101, 115, 112, 50, 88, 87, 115, 105, 106, 90, 117, 57, 57, 99, 52, 115, 115, 76, 84, 43, 55, 102, 49, 111, 109, 80, 52, 104, 90, 55, 54, 53, 115, 110, 75, 74, 73, 69, 55, 79, 50, 107, 108, 57, 43, 88, 82, 102, 78, 75, 77, 116, 114, 73, 118, 102, 119, 104, 99, 77, 100, 52, 87, 52, 47, 43, 104, 103, 81, 115, 68, 13, 10, 65, 111, 108, 66, 80, 99, 52, 107, 69, 49, 116, 111, 122, 97, 68, 66, 120, 53, 87, 116, 48, 73, 82, 87, 110, 113, 120, 111, 70, 57, 78, 103, 71, 81, 54, 78, 105, 80, 118, 120, 51, 48, 54, 89, 102, 108, 47, 83, 109, 97, 105, 108, 52, 115, 97, 86, 76, 100, 104, 100, 120, 107, 54, 55, 43, 74, 75, 105, 71, 65, 50, 69, 55, 111, 90, 72, 13, 10, 53, 66, 69, 110, 66, 88, 56, 102, 83, 75, 48, 120, 84, 110, 47, 76, 87, 49, 73, 85, 104, 119, 48, 52, 69, 109, 51, 90, 117, 66, 90, 120, 79, 54, 79, 80, 69, 88, 66, 53, 43, 104, 110, 72, 88, 101, 102, 114, 80, 102, 50, 66, 87, 104, 81, 113, 73, 43, 112, 106, 109, 110, 82, 114, 115, 112, 108, 80, 68, 72, 84, 74, 120, 57, 56, 57, 13, 10, 113, 117, 69, 103, 109, 75, 55, 56, 82, 107, 112, 81, 48, 98, 78, 52, 104, 111, 114, 53, 99, 107, 57, 107, 114, 84, 55, 68, 83, 69, 115, 43, 89, 76, 99, 115, 50, 89, 77, 100, 65, 74, 78, 99, 69, 90, 104, 51, 66, 50, 104, 43, 90, 107, 70, 113, 107, 78, 103, 116, 51, 73, 49, 114, 48, 97, 104, 114, 80, 115, 104, 54, 102, 86, 86, 80, 13, 10, 75, 113, 113, 104, 71, 69, 70, 106, 87, 72, 89, 69, 51, 71, 81, 43, 82, 106, 110, 121, 114, 118, 120, 100, 86, 74, 67, 104, 116, 110, 122, 70, 81, 65, 65, 65, 65, 65, 65, 65, 65, 65, 61, 61, 13, 10, 13, 10, 45, 45, 95, 53, 55, 54, 70, 67, 49, 49, 66, 45, 51, 52, 50, 57, 45, 52, 56, 67, 52, 45, 65, 51, 54, 57, 45, 56, 69, 51, 49, 67, 65, 50, 54, 57, 57, 53, 70, 95, 45, 45, 13, 10 };
        int indexOfNULL = Array.IndexOf<byte>(input, 0);
        Console.WriteLine("Found NUL in input at index: " + indexOfNULL);
        var message = ParseMessage(input);

        if (message.Body is Multipart)
        {
            var multipart = message.Body as Multipart;
            var firstMimePart = multipart.First() as MimePart;
            using (var msOut = new MemoryStream())
            {
                firstMimePart.ContentObject.WriteTo(msOut);
                var output = msOut.ToArray();
                var temp = String.Join(", ", output);
                indexOfNULL = Array.IndexOf<byte>(output, 0);
                Console.WriteLine("Found NUL in output at index: " + indexOfNULL);
            }
        }

        Console.ReadLine();
    }

    private static MimeMessage ParseMessage(byte[] data)
    {
        using (var ms = new MemoryStream(data))
        {
            Parser p = new Parser(ms);
            return p.ParseMessage();
        }
    }

Thanks!

/Mikkel

DateTime not parsing correctly

"Tue, 11 Feb 2014 22:27:10 +0100 (CET)" fails to parse, DateTimeOffset.TryParse returns false, and consequently the default DateTime.

Parameters with the same name

Sample:
https://gist.github.com/Gorily/37ad575258e1ad4a4896

Error: "A parameter of that name already exists."

Assigning the parsed "Content-Tranfer-Encoding" missing

Hello Jeffrey,

using your fine kit we have encountered a minor issue when decoding and writing streams out to disk. Thus we have changed the construction of MimePart in order to have a proper usage of ContentEncoding:

Your version:

public class MimePart : MimeEntity
{
static readonly string[] ContentTransferEncodings = new string[] {
null, "7bit", "8bit", "binary", "base64", "quoted-printable", "x-uuencode"
};
ContentEncoding encoding;
string content_md5;

    internal MimePart (ParserOptions options, ContentType type, IEnumerable<Header> headers, bool toplevel) : base (options, type, headers, toplevel)
    {
    }

Our changes:

public class MimePart : MimeEntity
{
private const string ENC_7BIT = "7bit";
private const string ENC_8BIT = "8bit";
private const string ENC_BINARY = "binary";
private const string ENC_BASE64 = "base64";
private const string ENC_QUOTED_PRINTABLE = "quoted-printable";
private const string ENC_UUENCODE = "x-uuencode";

    static readonly string[] ContentTransferEncodings = new string[] {
        null, ENC_7BIT, ENC_8BIT, ENC_BINARY, ENC_BASE64, ENC_QUOTED_PRINTABLE,ENC_UUENCODE
    };
    ContentEncoding encoding;
    string content_md5;

  ContentEncoding ParseEncoding(string enc_text)
  {
     ContentEncoding retval  =  ContentEncoding.Default;
     switch( enc_text.ToLowerInvariant() ){
        case ENC_7BIT:             retval = ContentEncoding.SevenBit;        break;
        case ENC_8BIT:             retval = ContentEncoding.EightBit;        break;
        case ENC_BINARY:           retval = ContentEncoding.Binary;          break;
        case ENC_BASE64:           retval = ContentEncoding.Base64;          break;
        case ENC_QUOTED_PRINTABLE: retval = ContentEncoding.QuotedPrintable; break;
        case ENC_UUENCODE:         retval = ContentEncoding.UUEncode;        break;
     }
     return retval;
  }

    internal MimePart (ParserOptions options, ContentType type, IEnumerable<Header> headers, bool toplevel) : base (options, type, headers, toplevel)
    {
     foreach(Header hd in Headers){
        if (String.Compare(hd.Field, "content-transfer-encoding", true) == 0){
           ContentTransferEncoding = ParseEncoding(hd.Value);
           break;
        }
     }
    }

Changing any construction has quite some impact, so we would like to ask you to take our changes for your code. That would make our maintenance easier, and you might even like our change.

Thanks in advance,
Cheers!

Unseal Header and HeaderList

Header and/or HeaderList (probably both) need not to be sealed. I want to extend from HeaderList (probably), possibly also Header, in order to extend convenience properties to my application. Thank you...

Allow multiple or pick the best alternate encoding for Content-Disposition parameters

Fixing issue #22 avoids crashing when parsing Content-Disposition headers sent by browsers when uploading content (e.g. multipart/form-data) but means that the first filename parameter is always chosen, which can be suboptimal.

Modern browsers will send a header like this:

Content-Disposition: ... filename=foo.txt; filename*=UTF-8''foo.txt; ...

The first parameter will be ASCII encoded, but the second may have a better encoding. Instead of blindly dropping subsequent parameters, they should either all be retained until parsing is complete and then pick the best one based on encoding, or replace previous parameters with subsequent ones.

At least in the case of browsers, the last option may work fine since they will always send the ASCII one first for compatibility.

It might be nice to retain everything though with the full name in the ParameterList and provide query logic to select by name or something.

I have a gist that fixed this specifically for the filename parameter before #22 was fixed:

https://gist.github.com/abock/91240f26ef40964fc388

See RFC 6266 Appendix D for recommended handling of filename parameters in Content-Disposition: http://tools.ietf.org/html/rfc6266#appendix-D

Date case sensitive

Don't parse this:

Date: FRI, 30 NOV 2012 02:09:10 +0100

X-Mailer: Oracle Email Server SDK 9.0.5

Add Importance flag to IMessageSummary

Hi,

Is it possible to add the Importance flag the the IMessageSummary.Envenlope? This is something you normally would like to retrieve before getting the complete message.

SQLite dependency causes version problems

The SQLite dependency causes problems for us because of versioning issues. Please place the SQLite stuff in a separate library (e.g. MimeKit.CertStore.SQLite.dll) and just use an interface in the core library (e.g. MimeKit.dll, ICertStore). This would have the nice side effect to allow custom certificate stores.

SaslException when using nonTLS SMTP

I'm trying to use SMTP the old way (with the password in plain text et-al... :-/ ), and it gives me this exception:

[SaslException: Invalid SASL challenge from the server: Username:]
   MailKit.Security.DigestChallenge.Parse(String token) +1319
   MailKit.Security.SaslMechanismDigestMd5.Challenge(Byte[] token, Int32 startIndex, Int32 length) +276
   MailKit.Security.SaslMechanism.Challenge(String token) +54
   MailKit.Net.Smtp.SmtpClient.Authenticate(ICredentials credentials, CancellationToken cancellationToken) +604
   FsWeb.Controllers.BackOfficeController.SendEmail(MimeMessage msg) in C:\Users\knocte\documents\visual studio 2012\Projects\FSolar\src\ConclaveSolarWebWebAppApi\BackOfficeController.fs:38

I've verified like a thousand times that my username is correct, but MailKit insists in sending this error.

The code I'm using (F#) is:

            use client = new SmtpClient()
            let credentials =
                new NetworkCredential(ConfigurationManager.AppSettings.["SmtpUsername"],
                                      ConfigurationManager.AppSettings.["SmtpPassword"])
            let uri = new Uri (ConfigurationManager.AppSettings.["SmtpHost"])
            let cancelToken = new CancellationTokenSource()
            client.Connect(uri, cancelToken.Token)

            // Note: since we don't have an OAuth2 token, disable
            // the XOAUTH2 authentication mechanism.
            ignore(client.AuthenticationMechanisms.Remove ("XOAUTH2"))

            // Note: only needed if the SMTP server requires authentication
            client.Authenticate (credentials, cancelToken.Token);

            client.Send (msg, cancelToken.Token);
            client.Disconnect (true, cancelToken.Token);

This works well with a smtps:// host URI (like gmail), but not with a smtp:// one...

InternetAddressList is missing ", " separator when encoded

When adding several addresses to an InternetAddressList the final output is not correctly separated.

Code:

        MimeMessage mm = new MimeMessage ();
        mm.Cc.Add(new MailboxAddress("Bob", "[email protected]"));
        mm.Cc.Add(new MailboxAddress("Bob", "[email protected]"));
        mm.Cc.Add(new MailboxAddress("Bob", "[email protected]"));
        mm.Cc.Add(new MailboxAddress("Bob", "[email protected]"));
        mm.Cc.Add(new MailboxAddress("Bob", "[email protected]"));
        mm.Cc.Add(new MailboxAddress("Bob", "[email protected]"));
        mm.Cc.Add(new MailboxAddress("Bob", "[email protected]"));
        mm.WriteTo (Console.OpenStandardOutput());

After decrypting I still get an ApplicationPkcs7Mime entity

Hi.

When I receive an email then I decrypt it using the TemporarySecureMimeContext like this:

private SecureMimeContext CreateSecureMimeContext(string certificateFilename, string certificatePassword)
        {
            var secureMimeContext = new TemporarySecureMimeContext();

            using (var stream = File.OpenRead(certificateFilename))
                secureMimeContext.Import(stream, certificatePassword);

            return secureMimeContext;
        }

var primarySecureMimeContext = CreateSecureMimeContext(certificateInfo.PrimaryCertificate,
                                                                       certificateInfo.PrimaryPassword);
                var primaryDecryptedEntity = entity.Decrypt(primarySecureMimeContext);
                EmailDistributer(primaryDecryptedEntity);

However the entity that is returned to EmailDistributer in this case is still an ApplicationPkcs7Mime even though it was decrypted correct. Am I missing a foreach here or something like that? Do you have any ideas?

It works for most mails, but a specific one is failing, which outlook can handle.

Argument out of range

Hi,

When I use the code below on an empty inbox I get the error Argument out of range on the line:
var result = client.Inbox.Fetch(0, -1, items);

    public IList<IMessageSummary> ListMessages
    {
        get
        {
            using (var client = new ImapClient())
            {
                client.Connect(Server, 993, true);
                client.AuthenticationMechanisms.Remove("XOAUTH");
                client.Authenticate(User, Password);
                client.Inbox.Open(FolderAccess.ReadOnly);

                const MessageSummaryItems items =
                    MessageSummaryItems.UniqueId | 
                    MessageSummaryItems.Envelope | 
                    MessageSummaryItems.MessageSize;

                var result = client.Inbox.Fetch(0, -1, items);
                client.Disconnect(true);
                return result;
            }
        }
    }

Don't parse "from" with two emails

Example input data:
From: Username [[email protected]] [email protected]

In "MimeMessage.Headers" everything ok:
Field: "From"
Value: "Username [[email protected]] [email protected]"

But "MimeMessage.From" and "MimeMessage.From.Mailboxes" is empty.

Porable Class Library on NuGet

I've seen a Portable csproject in this repository. Is there any reason, why there ins't any portable version of this project on NuGet?

Question: Does verification of signerinfo check root?

Hi.

When I invoke Verify on a signature e.g.:

private void HandleMultipartSignedMail(MultipartSigned entity)
{
            foreach (var signature in entity.Verify())
            {
                try
                {
                    signature.Verify();
                }...

is it then verified that the root certificate, which the certificate used for signing is based on, is trusted?

I hope you are able to answer this :)

Cheers

sqllite.dll badimageformat

Hi jstedfast.

I do not really know whether this is an issue or a suggestion.
I have some trouble with switching between x64 and x86 because of the sqllite.dll. I have to run x86 on some projects in the solution, x64 on others and my unittest project has to cover them all. It is an issue, because it causes system.badimageformatexception quite often because of the sqllite.dll.
When I run it as x86 it works fine.

Is there any clever workaround?

System.BadImageFormatException : An attempt was made to load a program with an incorrect format. (Exception from HRESULT: 0x8007000B)
[18:46:59][Execute utest] at Mono.Data.Sqlite.UnsafeNativeMethods.sqlite3_open_v2(Byte[] utf8Filename, IntPtr& db, Int32 flags, IntPtr vfs)
[18:46:59][Execute utest] at Mono.Data.Sqlite.SQLite3.Open(String strFilename, SQLiteOpenFlagsEnum flags, Int32 maxPoolSize, Boolean usePool)
[18:46:59][Execute utest] at Mono.Data.Sqlite.SqliteConnection.Open()
[18:46:59][Execute utest] at MimeKit.Cryptography.DefaultSecureMimeContext..ctor(String fileName, String password)
[18:46:59][Execute utest] at MimeKit.Cryptography.CryptographyContext.Create(String protocol)
[18:46:59][Execute utest] at MimeKit.Cryptography.MultipartSigned.Verify()

Message ID is added automatically to message in WriteTo

When I call MimeMessage.WriteTo, a Message ID header is added automatically, even if I do not add such header.

MultipartSigned forces body ContentTransferEncoding for non-binary content

Part of my project (NHIN Direct) involves sending signed and encrypted MultipartReport content (RFC 3462). I am having some trouble with the ContentTransferEncoding of the parts within the MultipartReport after sending.

RFC 3462 says that 7-bit encoding should be sufficient, and so I'm trying to use 7-bit, but MultipartSigned.PrepareEntityForSigning is forcing it to either Base64 or QuotedPrintable.

I don't understand the motivation behind using those two encodings when signing, but I don't think that QuotedPrintable is required if the source content is not binary.

TNEF encoding / winmail.dat

Hello Jeff,

Is there any chance that support for decoding TNEF encoded messages will be added in the future or is this completely out of the scope of MimeKit?

Problem with Header - From encoding

Hi,
first of all, thanks for your great work!
With version 1.41.0.0 there seems to be a problem with header encoding of the From-field (With the Subject-Field this works). E.g. From= "a ... a [email protected]" you would expect you get something like:
"a ... a\r\n [email protected]" but you get:
"a ... a\r\n\[email protected]". So if you decode it, you get a different result: "a ... a\[email protected]"
In the previos version 1.38.0.0 this worked.

    [TestMethod]
    public void WordEncodingEncodeEncodeFromTest1()
    {
        string rowSubject = "Lukas Trötzmüller <[email protected]>";
        string content = WordEncoding.EncodeFrom(rowSubject,
           Encoding.GetEncoding("ISO-8859-15"));

        Assert.IsTrue(76 > content.IndexOf('\n'));
        Assert.AreEqual(content, "Lukas =?iso-8859-1?b?VHL2dHpt/GxsZXI=?=\n <[email protected]>");

        content = content.Replace("\n", ""); 

        string result = WordEncoding.Decode(content);
        Assert.IsTrue(rowSubject == result);
    }

    public static string EncodeFrom(string from, Encoding inputEncoding)
    {
        if (string.IsNullOrEmpty(from)) return string.Empty;

        string strEnc = inputEncoding.WebName.ToUpper();
        Header header = new Header(Portable.Text.Encoding.GetEncoding(strEnc),
            "From", from);

        string encoded = ByteArrayToString(header.RawValue);
        encoded = encoded.Replace("\r\n", "\n").Trim();

        return encoded;
    }

    private static string ByteArrayToString(byte[] text)
    {
        StringBuilder builder = new StringBuilder();

        for (int i = 0; i < text.Length; i++)
            builder.Append((char)text[i]);

        return builder.ToString();
    }

Two minor issues

Hi Jeffrey

Very nice work - elegant code and easy to use.

I'm using your framework to parse AS2 messages, and I've found two minor issues.

1) HeaderList.WriteTo
When calling WriteTo on the MimeEntity theres only one linebreak between the headers and the content - there should be two (an empty line). I've fixed this by adding an extra:
stream.Write(NewLine, 0, NewLine.Length);
in the WriteTo method of the MimeEntity class (so there is now two line-breaks)
I don't know if theres a better way or place to do this.

2) Wrong cut for the last boundary:
In line 784 of the Parser class you have:
// the last \r\n belongs to the boundary if (content.Length > 0) { if (input[inputIndex - 1] == (byte) '\r') content.SetLength (content.Length - 2); else content.SetLength (content.Length - 1); }
But input[inputIndex - 1] will never be \r
Instead I have done this:

// the last \r\n belongs to the boundary if (content.Length > 0) { if (input[inputIndex - 2] == (byte)'\r' && input[inputIndex - 1] == (byte)'\n') content.SetLength(content.Length - 2); }

I have found those issues because I have to create a checksum (MIC) of the content-part. Therefore it has to be 100% identical with the input-stream.

MimeKitLite (on NuGet) misses WP8 support

Thank you very much for this library. You've done a really good job by devloping framework. But I only need a very little subset of functionallity (stuff in Encoding and the Rfc2047 util, to encode MIME Headers) for my Windows Phone app.

While the NuGet package MimeKit supports Windows Universal packages, the MimeKitLite package doesn't. It would be great if you could fix that in the next release.

MimeKit hangs when parsing specific emails

I am using MimeKit/MailKit to process hundreds of email replies daily that come from marketing emails. It works perfectly 99% of the time, but I have encountered several emails that hang MimeKit when it tries to parse the message. I have tracked this down to the ParseMessage function in the MimeParser, but I have no idea what is causing these messages to hang the parser. I can provide several emails that cause the parser to hang.

Feature request: ability to prohibit automatic adding of Date header

I noticed that the Mimekit library adds the Date header automatically in the WriteTo method if such header does not exists. I would like to be able to force Mimekit not to add such header.

EnumerateMimeParts recursion / Streamable attachments

I'm concerned on a couple of points: EnumerateMimeParts is recursive. Remember in school when you were taught (I assume you were) that every recursive solution also has an iterative solution? If you weren't, trust me, it's true. I might suggest a more iterative solution first.

Second, I am concerned that EnumerateMimeParts occurs multiple times depending on the property(ies) that are called. It doesn't need to be calculated any more than once, regardless the caller requesting the parts. The parts aren't changing between calls, after all... It's only "two" properties, BodyParts and Attachments, but you get the idea.

Then... What's the point of Attachments if they aren't streamable? The parts still need to be assembled and presented through a memory stream?

Thanks...

CR is added at the end of MIME part if original file is exactly 3712 bytes long

Hi,
My collegue Mikkel is on vecation but I have found another issue with the MIME Component. If the original file (attached as mime part) was exactly 3712 bytes long a Carraige Return is added to the end. Could you possible fix this?

Best Regard
Paw

Bug In Rfc2047 Decoder

There's a bug handling base 64 encoded names, here's a test case to illustrate the problem:

namespace UnitTests
{
    [TestFixture]
    public class Rfc2047Tests
    {
        [Test]
        public void CheckQEncodedName()
        {
            var input = "=?iso-8859-1?q?hola?=";

            var actual = Rfc2047.DecodeText(Encoding.ASCII.GetBytes(input));

            Assert.AreEqual("hola", actual);
        }

        [Test]
        public void CheckBEncodedName()
        {
            var encoding = "iso-8859-1";

            var input = "=?" + encoding + "?B?"
                        + Convert.ToBase64String(Encoding.GetEncoding(encoding).GetBytes("hola"))
                        + "?=";
            var actual = Rfc2047.DecodeText(Encoding.ASCII.GetBytes(input));

            Assert.AreEqual("hola", actual);
        }
    }
}

It looks like IF statement around line 353 in Rfc2047 needs to be changed to this (change the >= to >):

    if (inptr + 2 > inend) {
        // didn't find an end marker...
        inptr = word + 2;
        ascii = true;

        goto non_rfc2047;
    }

Encoding of MimePart.FileName property

Hi Jeffrey, big thanks to all the work you are doing with Mime/MailKit, really nice piece of code. I have stumbled accross one (non-critical) issue. Upon receiving some messages via IMAP I'm saving attachments, but have localised filenames in MimePart.FileName, such as

"" ÈPP - ¾ádost o akce""ptaci .""doc"

which should actually look like something

Žádost o akceptaci.doc

instead. server is Exchange in this case. Could it be something with encoding of the filename? Or am I doing something wrong?

Thanks, Tomas

Cannot decrypt without adding certificate to personal store

Hi.

When I attempt to decrypt an email using the WindowsSecureMimeContext it throws the exception:

System.Security.Cryptography.CryptographicException: The enveloped-data message does not contain the specified recipient.

   at System.Security.Cryptography.Pkcs.EnvelopedCms.DecryptContent(RecipientInfoCollection recipientInfos, X509Certificate2Collection extraStore)
   at System.Security.Cryptography.Pkcs.EnvelopedCms.Decrypt()
   at MimeKit.Cryptography.WindowsSecureMimeContext.Decrypt(Stream encryptedData)
   at MimeKit.Cryptography.ApplicationPkcs7Mime.Decrypt(SecureMimeContext ctx)
   at DC.Communications.Counterparties.BelVis.MailRecv.MailHandlers.BelVisMailHandler.HandleEncryptedMail(ApplicationPkcs7Mime entity) in c:\source\projects\DC.BelVis\trunk\DC.Communications.Counterparties.BelVis\DC.Communications.Counterparties.BelVis.MailRecv\MailHandlers\BelVisMailHandler.cs:line 179
   at DC.Communications.Counterparties.BelVis.MailRecv.MailHandlers.BelVisMailHandler.EmailDistributer(MimeEntity entity) in c:\source\projects\DC.BelVis\trunk\DC.Communications.Counterparties.BelVis\DC.Communications.Counterparties.BelVis.MailRecv\MailHandlers\BelVisMailHandler.cs:line 90
   at DC.Communications.Counterparties.BelVis.MailRecv.MailHandlers.BelVisMailHandler.ParseMimeContent(Byte[] content) in c:\source\projects\DC.BelVis\trunk\DC.Communications.Counterparties.BelVis\DC.Communications.Counterparties.BelVis.MailRecv\MailHandlers\BelVisMailHandler.cs:line 78
   at DC.Communications.Counterparties.BelVis.MailRecv.MailHandlers.BelVisMailHandler.HandleNewMail(IBelVisEmailMessage belVisEmailMessage) in c:\source\projects\DC.BelVis\trunk\DC.Communications.Counterparties.BelVis\DC.Communications.Counterparties.BelVis.MailRecv\MailHandlers\BelVisMailHandler.cs:line 45}

Which basically means, that it cannot find the certificate to use.
However I have imported the certificate:

var secureMimeContext = new WindowsSecureMimeContext();
var certificate = new X509Certificate2(certificateFilename,
                                                   certificatePassword);
var stream = new MemoryStream(certificate.GetRawCertData());
secureMimeContext.Import(stream, certificatePassword);
return secureMimeContext;

And a different way of importing:

var secureMimeContext = new WindowsSecureMimeContext();
var certificate = new X509Certificate2(certificateFilename,
                                                   certificatePassword);
var bouncyX509Certificate = Org.BouncyCastle.Security.DotNetUtilities.FromX509Certificate(certificate);
                secureMimeContext.Import(bouncyX509Certificate);

return secureMimeContext;

However none of them works.

I have tried to decrypt myself, which works great.
I load the certificate like this:

var certificateCollection = new X509Certificate2Collection(certificate);
var envelopedCms = new EnvelopedCms();
envelopedCms.Decode(data);
envelopedCms.Decrypt(certificateCollection);
return envelopedCms.ContentInfo.Content;

So I believe it is an issue, that it is so dependent on the certificate store.
Can you provide a fix or an idea on how to circumvent this issue?

SecureMimeContext.Sign does not support chain of certificates

Hello.
I wrote piece of code using MimeKit for email signing/encryption. I used signing certificate issued by my organization based on specific certification path starting from root. In order to sign message content I used MultipartSigned class:
MultipartSigned mps = MultipartSigned.Create(context, signer, mpMain);
based on signer with second constructor with chain of certificates.
In some reason I don't get in return whole chain.
I checked MimeKit sources and found something to consider:
In MultipartSigned.cs in public static MultipartSigned Create (SecureMimeContext ctx, CmsSigner signer, MimeEntity entity) signing is performed by
var signature = ctx.Sign (signer, memory);
Next in SecureMimeContext.cs method
public ApplicationPkcs7Signature Sign (CmsSigner signer, Stream content)
performs private method:

Stream Sign (CmsSigner signer, Stream content, bool encapsulate)
{
    var signedData = new CmsSignedDataStreamGenerator ();
    signedData.AddSigner (signer.PrivateKey, signer.Certificate, GetDigestOid (signer.DigestAlgorithm), AddSecureMimeCapabilities (signer.SignedAttributes), signer.UnsignedAttributes);
    var memory = new MemoryStream ();
    using (var stream = signedData.Open (memory, encapsulate)) {
        content.CopyTo (stream, 4096);
    }
    memory.Position = 0;
    return memory;
}

You do not pass chain of certificates if exists to signedData instance.
It seems like passing chain of certificates (to signer object) can't affect.

Am I wrong?

Cheers.

Header versus HeaderList versus MimeMessage

Hello, need a bit of help understanding Header and HeaderList.

There doesn't seem to be any formal even "POCO" exposure of otherwise "simple" Header fields, until a full message is parsed into MimeMessage.

As long as HeaderList is going to be maintained as a List, I think it would go better as an IDictionary< string, Header > with string being the name of the field, followed by its Header. I suppose I could ToDictionary the HeaderList, but it seems like there should be more of an interface.

A public or even internal extension method could work with a Header Value and make the appropriate conversion(s), for instance.

public static TValue GetHeaderValue<TValue>(this HeaderList header, string field, Func<string, TValue> getter)
{
    var value = header.FirstOrDefault(hl => hl.Field.Equals(field));
    return value == null ? default(TValue) : getter(value.Value);
}

Or something like that. Follow up post to, er, follow...

Issues encountered while testing out MIME message creation

Hi jstedfast,

I'm looking at using MimeKit for raw message creation for use for AWS SES SendRaw and similar API calls that allow sending 'raw e-mail' from multiple senders (SES, Mandrill, Sendgrid, Mailgun etc.).

Having read through most of the code, I must say the code is beautiful.

Here's some of the issues I've encountered constructing raw messages:

1. HeaderList - WriteTo

(https://github.com/jstedfast/MimeKit/blob/master/MimeKit/HeaderList.cs)

According to the RFC, a header value should end with \r\n. Currently the HeaderList appends all headers on one line.

2. InternetAddressList tests

The two following tests fail due to the escaping of the expected output, which can be fixed by folding with \r\n:

TestEncodingMailboxWithArabicName

=?utf-8?b?2YfZhCDYqtiq2YPZhNmFINin2YTZhNi62Kk=?=\r\n =?utf-8?b?INin2YTYpdmG2KzZhNmK2LLZitip?=\n =?utf-8?b?IC/Yp9mE2LnYsdio2YrYqdif?= [email protected]

TestEncodingMailboxWithJapaneseName

=?utf-8?b?54uC44Gj44Gf44GT44Gu5LiW44Gn54uC44GG44Gq44KJ5rCX?=\r\n =?utf-8?b?44Gv56K644GL44Gg44CC?= [email protected]

3. Base64Encoder is failing due to not large enough buffer allocated

At Multipart - GenerateBoundary (at Base64Encoder - Flush -> ValidateArguments); 32 bits is allocated to the output buffer but the estimated buffer length required is 73 bytes. I take it the 73 bytes is case specific, but still requires handling.

4. ContentObject - ContentEncoding

It doesn't make sense to specify the Content Transfer Encoding on the MimePart (as it applies to the content/body) as well as on the ContentObject (as ContentEncoding). It'd make more sense if the ContentObject contained the content and the ContentType as to supply parameters such as charset for text/*. Perhaps I'm wrong, but thought it worth mentioning.

5. Enable NuGet package restore

It would be nice if you could enable NuGet package restore so the necessary dependencies (ea. NUnit for the tests project) can be downloaded when building for the first time.

Overall it's looking great. I'll keep you updated with any issues I find.

Kind regards,
Shelakel

FIXME: validate the OnePass signatures

It should go like this i think.
Thats the way im doing it in an own decryption function.

if (onepassList != null && signatureList != null) {

        // There should be at least one OnePassSignature;
        PgpOnePassSignature ops = onepassList[0];
        // ops.KeyId contains the id of the key this data was signed with. 
        //One can get a public key via this id.
        PgpPublicKey key = ....
        // Init signature verification with the (found) public key.
        ops.InitVerify(key);
        // Update the one pass signature with decrypted data inside the memory stream.
        ops.Update(memory.ToArray());

        // Get the signature that was created when data was encrypted.
        PgpSignature firstSig = signatureList[0];

        //Verify (one pass) signature over the decrypted data against the "original" signature.
        if (!ops.Verify(firstSig))
                throw new Exception("Signature verification failed!");
}

Malformed paths in GnuPGContext

On Windows, when GNUPGHOME is not defined, paths PublicKeyRing and SecretKeyRing are malformed. I get "Roaming" twice: C:\Users\xxxx\AppData\Roaming\Roaming\gnupg\....
Looks like Environment.SpecialFolder.ApplicationData already includes "Roaming".

SecureMimeContext uses incorrect OIDs for SHA Message Digest Algorithms

Sending signed content with SHA digests results in "unknown signature" errors on the clients I have tested with (Outlook, NIST S/MIME testing tools).

SecureMimeContext.GetDigestOid is using BouncyCastle's PkcsObjectIdentifiers.Sha256WithRsaEncryption.Id. That's a SignatureAlgorithm from RFC 3370 (Section 3), not a Digest Algorithm (those are in Section 2).

So the SHA-1 OID is there in RFC 3370 Section 2.1. It's 1.3.14.3.2.26. It can be found in BC's X509ObjectIdentifiers class.

    public static readonly DerObjectIdentifier IdSha1 = new DerObjectIdentifier("1.3.14.3.2.26");

The SHA-2 OIDs were defined in RFC 5754. They are in BC's NistObjectIdentifiers class.

    public static readonly DerObjectIdentifier IdSha256 = HashAlgs.Branch("1");
    public static readonly DerObjectIdentifier IdSha384 = HashAlgs.Branch("2");
    public static readonly DerObjectIdentifier IdSha512 = HashAlgs.Branch("3");
    public static readonly DerObjectIdentifier IdSha224 = HashAlgs.Branch("4");

NewLineFormat.Dos option converts all the '0A' of the attachment to '0D 0A'

I'm using MimeKit in my project. I'm using it to add support to SOAP wA, it means that I'm doing a HTTP POST of a multipart related MIME document so I'm sending a binary file (which is my attachment).
I'm using the option: NewLineFormat.Dos in my MultiPart message. After sending my request I noticed that the binary file is corrupted and this was because of the NewLineFormat.Dos that converts all the '0A' to '0D 0A' in hex.
I think the option must not affect the content of my binary. Do you have any solution?
thanks.

WriteTo issue on a text/csv attachment

Hi Jeffrey,

I was giving MimeKit another shot today and it looks like you've made some great progress.

I was doing a small test run with a multipart/mixed containing a multipart/alternative (text/html & text/plain) and added a CSV file as attachment (text/csv). For some reason when I create the MimeMessage and use WriteTo, it discards the ContentDisposition set on the CSV file MimePart which also means the file won't be seen as an attachment. Only the ContentType is available in the headers when it's writing out the attachment.

When I changed the media/sub type to application/octet-stream then the ContentDisposition is included as expected.

Should all attachments media type be application/octet-stream? If not, I suspect the issue might be related to the 'text' media type.

Sorry I couldn't be of more help.

Kind regards,
Shelakel

More tolerant address parsing?

I received a few emails with a From header similar to this (missing closing bracket):

From: =?UTF-8?Q?r_f=C3=BCr_At?= <[email protected]

Does it make sense to make the parsing more tolerant or is this case too special?

media subtypes that contain a dot

I think there is a problem dealing with media sub types that contain a dot.

For example: application/vnd.visio is the media types for Visio files.

If I try to parse a message that contain a Visio file attachment, the resulting entity will have a content-type of application/octet-stream instead of application/vnd.visio.

Also, if I try to create a MimePart object with type application/vnd.visio, I will get an ArgumentException with message "Illegal characters in subtype".

Code:

MimeEntity entity = new MimePart("application", "vnd.visio") { IsAttachment = true, FileName = "file.vsd"};

MimeKit.InternetAddress.TryParseMailbox fails with unknown CodePage

The main imap sample for MailKit fails with my email account. The error seems to come from the System.Text.GetEncoding for CodePage 51936, which is the codepage for Chinese Simplified (EUC). I guess mono doesnt seem to ship with i18n module which may have caused this to fail. Here is a full trace on Mac OSX:

Unhandled Exception:
System.NotSupportedException: CodePage 51936 not supported
  at System.Text.Encoding.GetEncoding (Int32 codepage) [0x00000] in <filename unknown>:0 
  at MimeKit.InternetAddress.TryParseMailbox (MimeKit.ParserOptions options, System.Byte[] text, Int32 startIndex, System.Int32& index, Int32 endIndex, System.String name, Int32 codepage, Boolean throwOnError, MimeKit.InternetAddress& address) [0x00000] in <filename unknown>:0 
  at MimeKit.InternetAddress.TryParse (MimeKit.ParserOptions options, System.Byte[] text, System.Int32& index, Int32 endIndex, Boolean throwOnError, MimeKit.InternetAddress& address) [0x00000] in <filename unknown>:0 
  at MimeKit.InternetAddressList.TryParse (MimeKit.ParserOptions options, System.Byte[] text, System.Int32& index, Int32 endIndex, Boolean isGroup, Boolean throwOnError, System.Collections.Generic.List`1& addresses) [0x00000] in <filename unknown>:0 
  at MimeKit.MimeMessage.AddAddresses (MimeKit.Header header, MimeKit.InternetAddressList list) [0x00000] in <filename unknown>:0 
  at MimeKit.MimeMessage.HeadersChanged (System.Object o, MimeKit.HeaderListChangedEventArgs e) [0x00000] in <filename unknown>:0 
  at MimeKit.HeaderList.OnChanged (MimeKit.Header header, HeaderListChangedAction action) [0x00000] in <filename unknown>:0 
  at MimeKit.HeaderList.Add (MimeKit.Header header) [0x00000] in <filename unknown>:0 
  at MimeKit.MimeMessage..ctor (MimeKit.ParserOptions options, IEnumerable`1 headers) [0x00000] in <filename unknown>:0 
  at MimeKit.MimeParser.ParseMessage (System.Byte* inbuf) [0x00000] in <filename unknown>:0 
  at MimeKit.MimeParser.ParseMessage (CancellationToken cancellationToken) [0x00000] in <filename unknown>:0 
  at MimeKit.MimeMessage.Load (MimeKit.ParserOptions options, System.IO.Stream stream, CancellationToken cancellationToken) [0x00000] in <filename unknown>:0 
  at MimeKit.MimeMessage.Load (System.IO.Stream stream, CancellationToken cancellationToken) [0x00000] in <filename unknown>:0 
  at MailKit.Net.Imap.ImapFolder.GetMessage (Int32 index, CancellationToken cancellationToken) [0x00000] in <filename unknown>:0 
  at TestClient.Program.Main (System.String[] args) [0x00000] in <filename unknown>:0 
[ERROR] FATAL UNHANDLED EXCEPTION: System.NotSupportedException: CodePage 51936 not supported
  at System.Text.Encoding.GetEncoding (Int32 codepage) [0x00000] in <filename unknown>:0 
  at MimeKit.InternetAddress.TryParseMailbox (MimeKit.ParserOptions options, System.Byte[] text, Int32 startIndex, System.Int32& index, Int32 endIndex, System.String name, Int32 codepage, Boolean throwOnError, MimeKit.InternetAddress& address) [0x00000] in <filename unknown>:0 
  at MimeKit.InternetAddress.TryParse (MimeKit.ParserOptions options, System.Byte[] text, System.Int32& index, Int32 endIndex, Boolean throwOnError, MimeKit.InternetAddress& address) [0x00000] in <filename unknown>:0 
  at MimeKit.InternetAddressList.TryParse (MimeKit.ParserOptions options, System.Byte[] text, System.Int32& index, Int32 endIndex, Boolean isGroup, Boolean throwOnError, System.Collections.Generic.List`1& addresses) [0x00000] in <filename unknown>:0 
  at MimeKit.MimeMessage.AddAddresses (MimeKit.Header header, MimeKit.InternetAddressList list) [0x00000] in <filename unknown>:0 
  at MimeKit.MimeMessage.HeadersChanged (System.Object o, MimeKit.HeaderListChangedEventArgs e) [0x00000] in <filename unknown>:0 
  at MimeKit.HeaderList.OnChanged (MimeKit.Header header, HeaderListChangedAction action) [0x00000] in <filename unknown>:0 
  at MimeKit.HeaderList.Add (MimeKit.Header header) [0x00000] in <filename unknown>:0 
  at MimeKit.MimeMessage..ctor (MimeKit.ParserOptions options, IEnumerable`1 headers) [0x00000] in <filename unknown>:0 
  at MimeKit.MimeParser.ParseMessage (System.Byte* inbuf) [0x00000] in <filename unknown>:0 
  at MimeKit.MimeParser.ParseMessage (CancellationToken cancellationToken) [0x00000] in <filename unknown>:0 
  at MimeKit.MimeMessage.Load (MimeKit.ParserOptions options, System.IO.Stream stream, CancellationToken cancellationToken) [0x00000] in <filename unknown>:0 
  at MimeKit.MimeMessage.Load (System.IO.Stream stream, CancellationToken cancellationToken) [0x00000] in <filename unknown>:0 
  at MailKit.Net.Imap.ImapFolder.GetMessage (Int32 index, CancellationToken cancellationToken) [0x00000] in <filename unknown>:0 
  at TestClient.Program.Main (System.String[] args) [0x00000] in <filename unknown>:0

Parsing an empty multipart entity

I think that there is a bug in parsing empty multipart entities.

I have a mime message with the following structure:

multipart/signed
1.1 multipart/mixed
1.1.1 multipart/alternative (no children)
1.1.2 image/x-icon
1.2 application/x-pkcs-signature

When I parse this message with MimtKit I get the following structure:

multipart/signed
1.1 multipart/mixed
1.1.1 multipart/alternative
1.1.1.1 image/x-icon
1.2 application/x-pkcs-signature

The parser treats the icon attachment as a child of the multipart/alternative entity. While it should have treated it as its sibling.

I could not find a way to attach the mime file here. Let me know if you need it.

Sender is encoded without a line break

Example:
MimeMessage mm = new MimeMessage ();
mm.Sender = new MailboxAddress ("asd", "[email protected]");
mm.WriteTo (Console.OpenStandardOutput());

Output:

From: 
To: 
Date: Sat, 11 Jan 2014 19:32:04 +0100
Subject: 
Sender:asd <[email protected]>Message-Id: <635250658341716870.11868.0@purple>

My guess is that the issue is at the Sender property which does not add a newline to the RawValue.

mm.Headers[1].RawValue: 0x20 0x0A
mm.Headers[4].RawValue: ...... 0x62

The following appears to work(have not verified encoding)

mm.Headers[HeaderId.Sender] = new MailboxAddress ("aåäösd", "[email protected]").ToString();

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