/// <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");
}
cancellationToken.ThrowIfCancellationRequested();
using (var filtered = new FilteredStream(stream)) {
filtered.Add(options.CreateNewLineFilter());
foreach (var header in headers)
{
cancellationToken.ThrowIfCancellationRequested();
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();
}
}
/// <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);
}
}
