本文整理汇总了C#中MimeEntity.Prepare方法的典型用法代码示例。如果您正苦于以下问题：C# MimeEntity.Prepare方法的具体用法？C# MimeEntity.Prepare怎么用？C# MimeEntity.Prepare使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类MimeEntity的用法示例。
在下文中一共展示了MimeEntity.Prepare方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Create
/// <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;
}
}