public void TestBase64Encode()
{
using (var original = new MemoryStream()) {
using (var file = File.OpenRead("../../TestData/encoders/photo.b64")) {
using (var filtered = new FilteredStream(original)) {
filtered.Add(new Dos2UnixFilter());
file.CopyTo(filtered, 4096);
filtered.Flush();
}
}
using (var encoded = new MemoryStream()) {
using (var filtered = new FilteredStream(encoded)) {
filtered.Add(EncoderFilter.Create(ContentEncoding.Base64));
using (var file = File.OpenRead("../../TestData/encoders/photo.jpg"))
file.CopyTo(filtered, 4096);
filtered.Flush();
}
var buf0 = original.GetBuffer();
var buf1 = encoded.GetBuffer();
int n = (int)original.Length;
Assert.AreEqual(original.Length, encoded.Length, "Encoded length is incorrect.");
for (int i = 0; i < n; i++)
{
Assert.AreEqual(buf0[i], buf1[i], "The byte at offset {0} does not match.", i);
}
}
}
}
void TestDecoder(ContentEncoding encoding, byte[] rawData, string encodedFile, int bufferSize)
{
int n;
using (var original = new MemoryStream(rawData, false)) {
using (var decoded = new MemoryStream()) {
using (var filtered = new FilteredStream(decoded)) {
filtered.Add(DecoderFilter.Create(encoding));
using (var file = File.OpenRead(Path.Combine(dataDir, encodedFile))) {
var buffer = new byte[bufferSize];
while ((n = file.Read(buffer, 0, bufferSize)) > 0)
{
filtered.Write(buffer, 0, n);
}
}
filtered.Flush();
}
var buf = decoded.GetBuffer();
n = rawData.Length;
Assert.AreEqual(rawData.Length, decoded.Length, "Decoded length is incorrect.");
for (int i = 0; i < n; i++)
{
Assert.AreEqual(rawData[i], buf[i], "The byte at offset {0} does not match.", i);
}
}
}
}
public void TestArmoredFromFilter()
{
const string text = "This text is meant to test that the filter will armor lines beginning with\nFrom (like mbox). And let's add another\nFrom line for good measure, shall we?\n";
const string expected = "This text is meant to test that the filter will armor lines beginning with\n=46rom (like mbox). And let's add another\n=46rom line for good measure, shall we?\n";
var filter = new ArmoredFromFilter();
TestArgumentExceptions(filter);
using (var stream = new MemoryStream()) {
using (var filtered = new FilteredStream(stream)) {
int fromIndex = text.IndexOf("\nFrom ", StringComparison.Ordinal);
var buffer = Encoding.UTF8.GetBytes(text);
filtered.Add(filter);
// write out a buffer where the end boundary falls in the middle of "From "
int endIndex = fromIndex + 3;
filtered.Write(buffer, 0, endIndex);
// write out the rest
filtered.Write(buffer, endIndex, buffer.Length - endIndex);
filtered.Flush();
var actual = Encoding.UTF8.GetString(stream.GetBuffer(), 0, (int)stream.Length);
Assert.AreEqual(expected, actual, "From armoring failed when end boundary falls in the middle of From.");
}
}
}
/// <summary>
/// Gets the decoded text content using the provided charset to override
/// the charset specified in the Content-Type parameters.
/// </summary>
/// <remarks>
/// Uses the provided charset encoding to convert the raw text content
/// into a unicode string, overriding any charset specified in the
/// Content-Type header.
/// </remarks>
/// <returns>The decoded text.</returns>
/// <param name="charset">The charset encoding to use.</param>
/// <exception cref="System.ArgumentNullException">
/// <paramref name="charset"/> is <c>null</c>.
/// </exception>
public string GetText(Encoding charset)
{
if (charset == null)
{
throw new ArgumentNullException("charset");
}
using (var memory = new MemoryStream()) {
using (var filtered = new FilteredStream(memory)) {
filtered.Add(new CharsetFilter(charset, Encoding.UTF8));
ContentObject.DecodeTo(filtered);
filtered.Flush();
#if PORTABLE
var buffer = memory.ToArray();
int length = buffer.Length;
#else
var buffer = memory.GetBuffer();
int length = (int)memory.Length;
#endif
return(Encoding.UTF8.GetString(buffer, 0, length));
}
}
}
static EncoderTests()
{
using (var memory = new MemoryStream()) {
using (var filtered = new FilteredStream(memory)) {
filtered.Add(new Dos2UnixFilter());
using (var file = File.OpenRead(Path.Combine(dataDir, "wikipedia.txt")))
file.CopyTo(filtered, 4096);
filtered.Flush();
}
wikipedia_unix = memory.ToArray();
}
using (var memory = new MemoryStream()) {
using (var filtered = new FilteredStream(memory)) {
filtered.Add(new Unix2DosFilter());
using (var file = File.OpenRead(Path.Combine(dataDir, "wikipedia.txt")))
file.CopyTo(filtered, 4096);
filtered.Flush();
}
wikipedia_dos = memory.ToArray();
}
photo = File.ReadAllBytes(Path.Combine(dataDir, "photo.jpg"));
}
public ImapReplayCommand(Encoding encoding, string tag, string command, string resource, bool compressed = false)
{
CommandBuffer = encoding.GetBytes(command);
Compressed = compressed;
Encoding = encoding;
Command = command;
using (var stream = GetType().Assembly.GetManifestResourceStream("UnitTests.Net.Imap.Resources." + resource)) {
using (var memory = new MemoryBlockStream()) {
using (Stream compress = new CompressedStream(memory)) {
using (var filtered = new FilteredStream(compressed ? compress : memory)) {
filtered.Add(new ImapReplayFilter("A########", tag));
filtered.Add(new Unix2DosFilter());
stream.CopyTo(filtered, 4096);
filtered.Flush();
}
Response = memory.ToArray();
}
}
}
if (compressed)
{
using (var memory = new MemoryStream()) {
using (var compress = new CompressedStream(memory)) {
compress.Write(CommandBuffer, 0, CommandBuffer.Length);
compress.Flush();
CommandBuffer = memory.ToArray();
}
}
}
}
/// <summary>
/// Creates a new <see cref="MultipartSigned"/>.
/// </summary>
/// <remarks>
/// Cryptographically signs the entity using the supplied signer in order
/// to generate a detached signature and then adds the entity along with
/// the detached signature data to a new multipart/signed part.
/// </remarks>
/// <returns>A new <see cref="MultipartSigned"/> instance.</returns>
/// <param name="ctx">The S/MIME context to use for signing.</param>
/// <param name="signer">The signer.</param>
/// <param name="entity">The entity to sign.</param>
/// <exception cref="System.ArgumentNullException">
/// <para><paramref name="ctx"/> is <c>null</c>.</para>
/// <para>-or-</para>
/// <para><paramref name="signer"/> is <c>null</c>.</para>
/// <para>-or-</para>
/// <para><paramref name="entity"/> is <c>null</c>.</para>
/// </exception>
/// <exception cref="Org.BouncyCastle.Cms.CmsException">
/// An error occurred in the cryptographic message syntax subsystem.
/// </exception>
public static MultipartSigned Create(SecureMimeContext ctx, CmsSigner signer, MimeEntity entity)
{
if (ctx == null)
{
throw new ArgumentNullException("ctx");
}
if (signer == null)
{
throw new ArgumentNullException("signer");
}
if (entity == null)
{
throw new ArgumentNullException("entity");
}
entity.Prepare(EncodingConstraint.SevenBit, 78);
using (var memory = new MemoryBlockStream()) {
using (var filtered = new FilteredStream(memory)) {
// Note: see rfc3156, section 3 - second note
filtered.Add(new ArmoredFromFilter());
// Note: see rfc3156, section 5.4 (this is the main difference between rfc2015 and rfc3156)
filtered.Add(new TrailingWhitespaceFilter());
// Note: see rfc2015 or rfc3156, section 5.1
filtered.Add(new Unix2DosFilter());
entity.WriteTo(filtered);
filtered.Flush();
}
memory.Position = 0;
// Note: we need to parse the modified entity structure to preserve any modifications
var parser = new MimeParser(memory, MimeFormat.Entity);
var parsed = parser.ParseEntity();
memory.Position = 0;
// sign the cleartext content
var micalg = ctx.GetDigestAlgorithmName(signer.DigestAlgorithm);
var signature = ctx.Sign(signer, memory);
var signed = new MultipartSigned();
// set the protocol and micalg Content-Type parameters
signed.ContentType.Parameters["protocol"] = ctx.SignatureProtocol;
signed.ContentType.Parameters["micalg"] = micalg;
// add the modified/parsed entity as our first part
signed.Add(parsed);
// add the detached signature as the second part
signed.Add(signature);
return(signed);
}
}
static void AssertJwzMboxResults(string actual, Stream output)
{
var summary = File.ReadAllText(Path.Combine(MboxDataDir, "jwz-summary.txt")).Replace("\r\n", "\n");
var original = new MemoryBlockStream();
var expected = new byte[4096];
var buffer = new byte[4096];
int nx, n;
// WORKAROUND: Mono's iso-2022-jp decoder breaks on this input in versions <= 3.2.3 but is fixed in 3.2.4+
string iso2022jp = Encoding.GetEncoding("iso-2022-jp").GetString(Convert.FromBase64String("GyRAOjRGI0stGyhK"));
if (iso2022jp != "佐藤豊")
{
actual = actual.Replace(iso2022jp, "佐藤豊");
}
Assert.AreEqual(summary, actual, "Summaries do not match for jwz.mbox");
using (var stream = File.OpenRead(Path.Combine(MboxDataDir, "jwz.mbox.txt"))) {
using (var filtered = new FilteredStream(original)) {
filtered.Add(new Dos2UnixFilter());
stream.CopyTo(filtered);
filtered.Flush();
}
}
original.Position = 0;
output.Position = 0;
Assert.AreEqual(original.Length, output.Length, "The length of the mbox did not match.");
do
{
var position = original.Position;
nx = original.Read(expected, 0, expected.Length);
n = output.Read(buffer, 0, buffer.Length);
if (nx == 0)
{
break;
}
for (int i = 0; i < nx; i++)
{
if (buffer[i] == expected[i])
{
continue;
}
var strExpected = CharsetUtils.Latin1.GetString(expected, 0, nx);
var strActual = CharsetUtils.Latin1.GetString(buffer, 0, n);
Assert.AreEqual(strExpected, strActual, "The mbox differs at position {0}", position + i);
}
} while (true);
}
/// <summary>
/// Writes the <see cref="MimeKit.MimePart"/> to the specified output stream.
/// </summary>
/// <param name="options">The formatting options.</param>
/// <param name="stream">The output stream.</param>
/// <param name="cancellationToken">A cancellation token.</param>
/// <exception cref="System.ArgumentNullException">
/// <para><paramref name="options"/> is <c>null</c>.</para>
/// <para>-or-</para>
/// <para><paramref name="stream"/> is <c>null</c>.</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 override void WriteTo(FormatOptions options, Stream stream, CancellationToken cancellationToken)
{
base.WriteTo(options, stream, cancellationToken);
if (ContentObject == null)
{
return;
}
if (ContentObject.Encoding != encoding)
{
if (encoding == ContentEncoding.UUEncode)
{
cancellationToken.ThrowIfCancellationRequested();
var begin = string.Format("begin 0644 {0}", FileName ?? "unknown");
var buffer = Encoding.UTF8.GetBytes(begin);
stream.Write(buffer, 0, buffer.Length);
stream.Write(options.NewLineBytes, 0, options.NewLineBytes.Length);
}
// transcode the content into the desired Content-Transfer-Encoding
using (var filtered = new FilteredStream(stream)) {
filtered.Add(EncoderFilter.Create(encoding));
if (encoding != ContentEncoding.Binary)
{
filtered.Add(options.CreateNewLineFilter());
}
ContentObject.DecodeTo(filtered, cancellationToken);
filtered.Flush();
}
if (encoding == ContentEncoding.UUEncode)
{
cancellationToken.ThrowIfCancellationRequested();
var buffer = Encoding.ASCII.GetBytes("end");
stream.Write(buffer, 0, buffer.Length);
stream.Write(options.NewLineBytes, 0, options.NewLineBytes.Length);
}
}
else if (encoding != ContentEncoding.Binary)
{
using (var filtered = new FilteredStream(stream)) {
filtered.Add(options.CreateNewLineFilter());
ContentObject.WriteTo(filtered, cancellationToken);
filtered.Flush();
}
}
else
{
ContentObject.WriteTo(stream, cancellationToken);
}
}
async Task <bool> VerifyArcSealAsync(FormatOptions options, ArcHeaderSet[] sets, int i, bool doAsync, CancellationToken cancellationToken)
{
DkimSignatureAlgorithm algorithm;
AsymmetricKeyParameter key;
string d, s, q, b;
ValidateArcSealParameters(sets[i].ArcSealParameters, out algorithm, out d, out s, out q, out b);
if (!IsEnabled(algorithm))
{
return(false);
}
if (doAsync)
{
key = await PublicKeyLocator.LocatePublicKeyAsync(q, d, s, cancellationToken).ConfigureAwait(false);
}
else
{
key = PublicKeyLocator.LocatePublicKey(q, d, s, cancellationToken);
}
if ((key is RsaKeyParameters rsa) && rsa.Modulus.BitLength < MinimumRsaKeyLength)
{
return(false);
}
options = options.Clone();
options.NewLineFormat = NewLineFormat.Dos;
using (var stream = new DkimSignatureStream(CreateVerifyContext(algorithm, key))) {
using (var filtered = new FilteredStream(stream)) {
filtered.Add(options.CreateNewLineFilter());
for (int j = 0; j < i; j++)
{
WriteHeaderRelaxed(options, filtered, sets[j].ArcAuthenticationResult, false);
WriteHeaderRelaxed(options, filtered, sets[j].ArcMessageSignature, false);
WriteHeaderRelaxed(options, filtered, sets[j].ArcSeal, false);
}
WriteHeaderRelaxed(options, filtered, sets[i].ArcAuthenticationResult, false);
WriteHeaderRelaxed(options, filtered, sets[i].ArcMessageSignature, false);
// now include the ARC-Seal header that we are verifying,
// but only after removing the "b=" signature value.
var seal = GetSignedSignatureHeader(sets[i].ArcSeal);
WriteHeaderRelaxed(options, filtered, seal, true);
filtered.Flush();
}
return(stream.VerifySignature(b));
}
}
void TestEncoder(ContentEncoding encoding, byte[] rawData, string encodedFile, int bufferSize)
{
int n;
using (var original = new MemoryStream()) {
using (var file = File.OpenRead(Path.Combine(dataDir, encodedFile))) {
using (var filtered = new FilteredStream(original)) {
filtered.Add(new Dos2UnixFilter());
file.CopyTo(filtered, 4096);
filtered.Flush();
}
}
using (var encoded = new MemoryStream()) {
if (encoding == ContentEncoding.UUEncode)
{
var begin = Encoding.ASCII.GetBytes("begin 644 photo.jpg\n");
encoded.Write(begin, 0, begin.Length);
}
using (var filtered = new FilteredStream(encoded)) {
filtered.Add(EncoderFilter.Create(encoding));
using (var memory = new MemoryStream(rawData, false)) {
var buffer = new byte[bufferSize];
while ((n = memory.Read(buffer, 0, bufferSize)) > 0)
{
filtered.Write(buffer, 0, n);
}
}
filtered.Flush();
}
if (encoding == ContentEncoding.UUEncode)
{
var end = Encoding.ASCII.GetBytes("end\n");
encoded.Write(end, 0, end.Length);
}
var buf0 = original.GetBuffer();
var buf1 = encoded.GetBuffer();
n = (int)original.Length;
Assert.AreEqual(original.Length, encoded.Length, "Encoded length is incorrect.");
for (int i = 0; i < n; i++)
{
Assert.AreEqual(buf0[i], buf1[i], "The byte at offset {0} does not match.", i);
}
}
}
}
Header GenerateArcMessageSignature(FormatOptions options, MimeMessage message, int instance, TimeSpan t, IList <string> headers)
{
if (message.MimeVersion == null && message.Body != null && message.Body.Headers.Count > 0)
{
message.MimeVersion = new Version(1, 0);
}
var value = CreateArcHeaderBuilder(instance);
byte[] signature, hash;
Header ams;
value.AppendFormat("; d={0}; s={1}", Domain, Selector);
value.AppendFormat("; c={0}/{1}",
HeaderCanonicalizationAlgorithm.ToString().ToLowerInvariant(),
BodyCanonicalizationAlgorithm.ToString().ToLowerInvariant());
value.AppendFormat("; t={0}", (long)t.TotalSeconds);
using (var stream = new DkimSignatureStream(CreateSigningContext())) {
using (var filtered = new FilteredStream(stream)) {
filtered.Add(options.CreateNewLineFilter());
// write the specified message headers
DkimVerifierBase.WriteHeaders(options, message, headers, HeaderCanonicalizationAlgorithm, filtered);
value.AppendFormat("; h={0}", string.Join(":", headers.ToArray()));
hash = message.HashBody(options, SignatureAlgorithm, BodyCanonicalizationAlgorithm, -1);
value.AppendFormat("; bh={0}", Convert.ToBase64String(hash));
value.Append("; b=");
ams = new Header(HeaderId.ArcMessageSignature, value.ToString());
switch (HeaderCanonicalizationAlgorithm)
{
case DkimCanonicalizationAlgorithm.Relaxed:
DkimVerifierBase.WriteHeaderRelaxed(options, filtered, ams, true);
break;
default:
DkimVerifierBase.WriteHeaderSimple(options, filtered, ams, true);
break;
}
filtered.Flush();
}
signature = stream.GenerateSignature();
ams.Value += Convert.ToBase64String(signature);
return(ams);
}
}
/// <summary>
/// Writes the message to the specified stream.
/// </summary>
/// <param name="options">The formatting options.</param>
/// <param name="stream">The stream.</param>
/// <exception cref="System.ArgumentNullException">
/// <para><paramref name="options"/> is <c>null</c>.</para>
/// <para>-or-</para>
/// <para><paramref name="stream"/> is <c>null</c>.</para>
/// </exception>
public void WriteTo(FormatOptions options, Stream stream)
{
if (options == null)
{
throw new ArgumentNullException("options");
}
if (stream == null)
{
throw new ArgumentNullException("stream");
}
if (!Headers.Contains("Date"))
{
Date = DateTimeOffset.Now;
}
if (messageId == null)
{
MessageId = MimeUtils.GenerateMessageId();
}
if (version == null && Body != null && Body.Headers.Count > 0)
{
MimeVersion = new Version(1, 0);
}
if (Body == null)
{
Headers.WriteTo(stream);
stream.Write(options.NewLineBytes, 0, options.NewLineBytes.Length);
}
else
{
using (var filtered = new FilteredStream(stream)) {
filtered.Add(options.CreateNewLineFilter());
foreach (var header in MergeHeaders())
{
var name = Encoding.ASCII.GetBytes(header.Field);
filtered.Write(name, 0, name.Length);
filtered.WriteByte((byte)':');
filtered.Write(header.RawValue, 0, header.RawValue.Length);
}
filtered.Flush();
}
options.WriteHeaders = false;
Body.WriteTo(options, stream);
}
}
/// <summary>
/// Decodes the content stream into another stream.
/// </summary>
/// <remarks>
/// Uses the <see cref="Encoding"/> to decode the content stream to the output stream.
/// </remarks>
/// <param name="stream">The output stream.</param>
/// <param name="cancellationToken">A cancellation token.</param>
/// <exception cref="System.ArgumentNullException">
/// <paramref name="stream"/> is <c>null</c>.
/// </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 void DecodeTo(Stream stream, CancellationToken cancellationToken = default(CancellationToken))
{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
using (var filtered = new FilteredStream(stream)) {
filtered.Add(DecoderFilter.Create(Encoding));
WriteTo(filtered, cancellationToken);
filtered.Flush(cancellationToken);
}
}
/// <summary>
/// Decodes the content stream into another stream.
/// </summary>
/// <param name="stream">The output stream.</param>
/// <exception cref="System.ArgumentNullException">
/// <paramref name="stream"/> is <c>null</c>.
/// </exception>
public void DecodeTo(Stream stream)
{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
using (var filtered = new FilteredStream(stream)) {
filtered.Add(DecoderFilter.Create(Encoding));
WriteTo(filtered);
filtered.Flush();
}
}
public static void SaveToPickupDirectory (MimeMessage message, string pickupDirectory)
{
do {
// Generate a random file name to save the message to.
var path = Path.Combine (pickupDirectory, Guid.NewGuid ().ToString () + ".eml");
Stream stream;
try {
// Attempt to create the new file.
stream = File.Open (path, FileMode.CreateNew);
} catch (IOException) {
// If the file already exists, try again with a new Guid.
if (File.Exists (path))
continue;
// Otherwise, fail immediately since it probably means that there is
// no graceful way to recover from this error.
throw;
}
try {
using (stream) {
// IIS pickup directories expect the message to be "byte-stuffed"
// which means that lines beginning with "." need to be escaped
// by adding an extra "." to the beginning of the line.
//
// Use an SmtpDataFilter "byte-stuff" the message as it is written
// to the file stream. This is the same process that an SmtpClient
// would use when sending the message in a `DATA` command.
using (var filtered = new FilteredStream (stream)) {
filtered.Add (new SmtpDataFilter ());
// Make sure to write the message in DOS (<CR><LF>) format.
var options = FormatOptions.Default.Clone ();
options.NewLineFormat = NewLineFormat.Dos;
message.WriteTo (options, filtered);
filtered.Flush ();
return;
}
}
} catch {
// An exception here probably means that the disk is full.
//
// Delete the file that was created above so that incomplete files are not
// left behind for IIS to send accidentally.
File.Delete (path);
throw;
}
} while (true);
}
static byte[] ReadAllBytes(Stream stream, bool text)
{
using (var memory = new MemoryStream()) {
using (var filtered = new FilteredStream(memory)) {
if (text)
{
filtered.Add(new Dos2UnixFilter(true));
}
stream.CopyTo(filtered, 4096);
filtered.Flush();
return(memory.ToArray());
}
}
}
public void TestYDecodeStateTransitions()
{
using (var file = File.OpenRead(Path.Combine(DataDir, "state-changes.ntx"))) {
using (var decoded = new MemoryStream()) {
var ydec = new YDecoder();
using (var filtered = new FilteredStream(decoded)) {
filtered.Add(new DecoderFilter(ydec));
file.CopyTo(filtered, 1);
filtered.Flush();
}
Assert.AreEqual(584, decoded.Length, "The decoded size does not match.");
Assert.AreEqual(0xded29f4f, ydec.Checksum ^ 0xffffffff, "The decoded checksum does not match.");
}
}
}
public ImapReplayCommand(string tag, string command, string resource)
{
Command = command;
using (var stream = GetType().Assembly.GetManifestResourceStream("UnitTests.Net.Imap.Resources." + resource)) {
using (var memory = new MemoryBlockStream()) {
using (var filtered = new FilteredStream(memory)) {
filtered.Add(new ImapReplayFilter("A########", tag));
filtered.Add(new Unix2DosFilter());
stream.CopyTo(filtered, 4096);
filtered.Flush();
}
Response = memory.ToArray();
}
}
}
/// <summary>
/// Gets the decoded text content using the provided charset to override
/// the charset specified in the Content-Type parameters.
/// </summary>
/// <returns>The decoded text.</returns>
/// <param name="charset">The charset encoding to use.</param>
/// <exception cref="System.ArgumentNullException">
/// <paramref name="charset"/> is <c>null</c>.
/// </exception>
public string GetText(Encoding charset)
{
if (charset == null)
{
throw new ArgumentNullException("charset");
}
using (var memory = new MemoryStream()) {
using (var filtered = new FilteredStream(memory)) {
filtered.Add(new CharsetFilter(charset, Encoding.UTF8));
ContentObject.DecodeTo(filtered);
filtered.Flush();
return(Encoding.UTF8.GetString(memory.GetBuffer(), 0, (int)memory.Length));
}
}
}
/// <summary>
/// Converts the contents of <paramref name="source"/> from the <see cref="InputFormat"/> to the
/// <see cref="OutputFormat"/> and writes the resulting text to <paramref name="destination"/>.
/// </summary>
/// <remarks>
/// Converts the contents of <paramref name="source"/> from the <see cref="InputFormat"/> to the
/// <see cref="OutputFormat"/> and writes the resulting text to <paramref name="destination"/>.
/// </remarks>
/// <param name="source">The source stream.</param>
/// <param name="destination">The destination stream.</param>
/// <exception cref="System.ArgumentNullException">
/// <para><paramref name="source"/> is <c>null</c>.</para>
/// <para>-or-</para>
/// <para><paramref name="destination"/> is <c>null</c>.</para>
/// </exception>
public void Convert(Stream source, Stream destination)
{
if (source == null)
{
throw new ArgumentNullException("source");
}
if (destination == null)
{
throw new ArgumentNullException("destination");
}
using (var filtered = new FilteredStream(destination)) {
filtered.Add(this);
source.CopyTo(filtered, 4096);
filtered.Flush();
}
}
public ImapReplayCommand(string command, string resource, bool compressed = false)
{
string tag = null;
CommandBuffer = Latin1.GetBytes(command);
Compressed = compressed;
Command = command;
if (command.StartsWith("A00000", StringComparison.Ordinal))
{
tag = command.Substring(0, 9);
}
using (var stream = GetType().Assembly.GetManifestResourceStream("UnitTests.Net.Imap.Resources." + resource)) {
using (var memory = new MemoryBlockStream()) {
using (Stream compress = new CompressedStream(memory)) {
using (var filtered = new FilteredStream(compressed ? compress : memory)) {
if (tag != null)
{
filtered.Add(new ImapReplayFilter("A########", tag));
}
filtered.Add(new Unix2DosFilter());
stream.CopyTo(filtered, 4096);
filtered.Flush();
}
Response = memory.ToArray();
}
}
}
if (compressed)
{
using (var memory = new MemoryStream()) {
using (var compress = new CompressedStream(memory)) {
compress.Write(CommandBuffer, 0, CommandBuffer.Length);
compress.Flush();
CommandBuffer = memory.ToArray();
}
}
}
}
/// <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));
}
}
}
Header GenerateArcSeal(FormatOptions options, int instance, TimeSpan t, ArcHeaderSet[] sets, int count, Header aar, Header ams)
{
var value = CreateArcHeaderBuilder(instance);
byte[] signature;
Header seal;
// FIXME: where should this value come from?
value.Append("; cv=pass");
value.AppendFormat("; d={0}; s={1}", Domain, Selector);
value.AppendFormat("; t={0}", (long)t.TotalSeconds);
using (var stream = new DkimSignatureStream(CreateSigningContext())) {
using (var filtered = new FilteredStream(stream)) {
filtered.Add(options.CreateNewLineFilter());
for (int i = 0; i < count; i++)
{
DkimVerifierBase.WriteHeaderRelaxed(options, filtered, sets[i].ArcAuthenticationResult, false);
DkimVerifierBase.WriteHeaderRelaxed(options, filtered, sets[i].ArcMessageSignature, false);
DkimVerifierBase.WriteHeaderRelaxed(options, filtered, sets[i].ArcSeal, false);
}
DkimVerifierBase.WriteHeaderRelaxed(options, filtered, aar, false);
DkimVerifierBase.WriteHeaderRelaxed(options, filtered, ams, false);
value.Append("; b=");
seal = new Header(HeaderId.ArcSeal, value.ToString());
DkimVerifierBase.WriteHeaderRelaxed(options, filtered, seal, true);
filtered.Flush();
}
signature = stream.GenerateSignature();
seal.Value += Convert.ToBase64String(signature);
return(seal);
}
}
public void TestUUEncode()
{
using (var original = new MemoryStream()) {
using (var file = File.OpenRead("../../TestData/encoders/photo.uu")) {
using (var filtered = new FilteredStream(original)) {
filtered.Add(new Dos2UnixFilter());
file.CopyTo(filtered, 4096);
filtered.Flush();
}
}
using (var encoded = new MemoryStream()) {
var begin = Encoding.ASCII.GetBytes("begin 644 photo.jpg\n");
var end = Encoding.ASCII.GetBytes("end\n");
encoded.Write(begin, 0, begin.Length);
using (var filtered = new FilteredStream(encoded)) {
filtered.Add(EncoderFilter.Create(ContentEncoding.UUEncode));
using (var file = File.OpenRead("../../TestData/encoders/photo.jpg"))
file.CopyTo(filtered, 4096);
filtered.Flush();
}
encoded.Write(end, 0, end.Length);
var buf0 = original.GetBuffer();
var buf1 = encoded.GetBuffer();
int n = (int)original.Length;
Assert.AreEqual(original.Length, encoded.Length, "Encoded length is incorrect.");
for (int i = 0; i < n; i++)
{
Assert.AreEqual(buf0[i], buf1[i], "The byte at offset {0} does not match.", i);
}
}
}
}
/// <summary>
/// Writes the <see cref="MimeKit.HeaderList"/> to the specified output stream.
/// </summary>
/// <remarks>
/// Writes all of the headers to the output stream.
/// </remarks>
/// <param name="options">The formatting options.</param>
/// <param name="stream">The output stream.</param>
/// <param name="cancellationToken">A cancellation token.</param>
/// <exception cref="System.ArgumentNullException">
/// <para><paramref name="options"/> is <c>null</c>.</para>
/// <para>-or-</para>
/// <para><paramref name="stream"/> is <c>null</c>.</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 void WriteTo(FormatOptions options, Stream stream, CancellationToken cancellationToken = default(CancellationToken))
{
if (options == null)
{
throw new ArgumentNullException("options");
}
if (stream == null)
{
throw new ArgumentNullException("stream");
}
using (var filtered = new FilteredStream(stream)) {
if (options.NewLineFormat != FormatOptions.Default.NewLineFormat)
{
filtered.Add(options.CreateNewLineFilter());
}
foreach (var header in headers)
{
var name = Encoding.ASCII.GetBytes(header.Field);
byte[] rawValue;
filtered.Write(name, 0, name.Length, cancellationToken);
filtered.Write(new [] { (byte)':' }, 0, 1, cancellationToken);
if (options.International)
{
rawValue = header.GetRawValue(options, Encoding.UTF8);
}
else
{
rawValue = header.RawValue;
}
filtered.Write(rawValue, 0, rawValue.Length, cancellationToken);
}
filtered.Flush(cancellationToken);
}
}
/// <summary>
/// Creates a new <see cref="MultipartEncrypted"/>.
/// </summary>
/// <remarks>
/// Encrypts the entity to the specified recipients, encapsulating the result in a
/// new multipart/encrypted part.
/// </remarks>
/// <returns>A new <see cref="MimeKit.Cryptography.MultipartEncrypted"/> instance containing
/// the encrypted version of the specified entity.</returns>
/// <param name="ctx">The OpenPGP cryptography context to use for encrypting.</param>
/// <param name="recipients">The recipients for the encrypted entity.</param>
/// <param name="entity">The entity to sign and encrypt.</param>
/// <exception cref="System.ArgumentNullException">
/// <para><paramref name="ctx"/> is <c>null</c>.</para>
/// <para>-or-</para>
/// <para><paramref name="recipients"/> is <c>null</c>.</para>
/// <para>-or-</para>
/// <para><paramref name="entity"/> is <c>null</c>.</para>
/// </exception>
/// <exception cref="System.ArgumentException">
/// One or more of the recipient keys cannot be used for encrypting.
/// </exception>
public static MultipartEncrypted Create(OpenPgpContext ctx, IEnumerable <PgpPublicKey> recipients, MimeEntity entity)
{
if (ctx == null)
{
throw new ArgumentNullException("ctx");
}
if (recipients == null)
{
throw new ArgumentNullException("recipients");
}
if (entity == null)
{
throw new ArgumentNullException("entity");
}
using (var memory = new MemoryBlockStream()) {
using (var filtered = new FilteredStream(memory)) {
filtered.Add(new Unix2DosFilter());
PrepareEntityForEncrypting(entity);
entity.WriteTo(filtered);
filtered.Flush();
}
memory.Position = 0;
var encrypted = new MultipartEncrypted();
encrypted.ContentType.Parameters["protocol"] = ctx.EncryptionProtocol;
// add the protocol version part
encrypted.Add(new ApplicationPgpEncrypted());
// add the encrypted entity as the second part
encrypted.Add(ctx.Encrypt(recipients, memory));
return(encrypted);
}
}
public void TestYDecodeMultiPart()
{
var expected = File.ReadAllBytes(Path.Combine(DataDir, "joystick.jpg"));
using (var decoded = new MemoryStream()) {
using (var file = File.OpenRead(Path.Combine(DataDir, "00000020.ntx"))) {
var ydec = new YDecoder();
using (var filtered = new FilteredStream(decoded)) {
filtered.Add(new DecoderFilter(ydec));
file.CopyTo(filtered, 1);
filtered.Flush();
}
Assert.AreEqual(11250, decoded.Length, "The decoded size does not match (part 1).");
Assert.AreEqual(0xbfae5c0b, ydec.Checksum ^ 0xffffffff, "The decoded checksum does not match (part 1).");
}
using (var file = File.OpenRead(Path.Combine(DataDir, "00000021.ntx"))) {
var ydec = new YDecoder();
using (var filtered = new FilteredStream(decoded)) {
filtered.Add(new DecoderFilter(ydec));
file.CopyTo(filtered, 1);
filtered.Flush();
}
Assert.AreEqual(19338, decoded.Length, "The decoded size does not match (part 2).");
Assert.AreEqual(0xaca76043, ydec.Checksum ^ 0xffffffff, "The decoded checksum does not match (part 2).");
}
var actual = decoded.GetBuffer();
for (int i = 0; i < expected.Length; i++)
{
Assert.AreEqual(expected[i], actual[i], "different content at index {0}", i);
}
}
}
void Data(MimeMessage message, CancellationToken cancellationToken)
{
var response = SendCommand("DATA", cancellationToken);
if (response.StatusCode != SmtpStatusCode.StartMailInput)
{
throw new SmtpCommandException(SmtpErrorCode.UnexpectedStatusCode, response.StatusCode, response.Response);
}
var options = FormatOptions.Default.Clone();
options.NewLineFormat = NewLineFormat.Dos;
options.HiddenHeaders.Add(HeaderId.ContentLength);
options.HiddenHeaders.Add(HeaderId.ResentBcc);
options.HiddenHeaders.Add(HeaderId.Bcc);
using (var filtered = new FilteredStream(stream)) {
filtered.Add(new SmtpDataFilter());
message.WriteTo(options, filtered, cancellationToken);
filtered.Flush();
}
stream.Write(EndData, 0, EndData.Length);
response = ReadResponse(cancellationToken);
switch (response.StatusCode)
{
default:
throw new SmtpCommandException(SmtpErrorCode.MessageNotAccepted, response.StatusCode, response.Response);
case SmtpStatusCode.AuthenticationRequired:
throw new UnauthorizedAccessException(response.Response);
case SmtpStatusCode.Ok:
break;
}
}
Stream GetResponseStream(ImapReplayCommand command)
{
MemoryStream memory;
if (testUnixFormat)
{
memory = new MemoryStream();
using (var filtered = new FilteredStream(memory)) {
filtered.Add(new Dos2UnixFilter());
filtered.Write(command.Response, 0, command.Response.Length);
filtered.Flush();
}
memory.Position = 0;
}
else
{
memory = new MemoryStream(command.Response, false);
}
return(memory);
}