internal MimeMessage(ParserOptions options, IEnumerable <Header> headers)
{
addresses = new Dictionary <string, InternetAddressList> (icase);
Headers = new HeaderList(options);
// initialize our address lists
foreach (var name in StandardAddressHeaders)
{
var list = new InternetAddressList();
list.Changed += InternetAddressListChanged;
addresses.Add(name, list);
}
references = new MessageIdList();
references.Changed += ReferencesChanged;
inreplyto = null;
Headers.Changed += HeadersChanged;
// add all of our message headers...
foreach (var header in headers)
{
if (header.Field.StartsWith("Content-", StringComparison.OrdinalIgnoreCase))
{
continue;
}
Headers.Add(header);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="MimeKit.MimeEntity"/> class.
/// </summary>
/// <param name="entity">Information used by the constructor.</param>
/// <remarks>
/// Custom <see cref="MimeEntity"/> subclasses MUST implement this constructor
/// in order to register it using <see cref="MimeEntity.Register"/>.
/// </remarks>
protected MimeEntity(MimeEntityConstructorInfo entity)
{
if (entity == null)
{
throw new ArgumentNullException("entity");
}
Headers = new HeaderList(entity.ParserOptions);
ContentType = entity.ContentType;
ContentType.Changed += ContentTypeChanged;
Headers.Changed += HeadersChanged;
IsInitializing = true;
foreach (var header in entity.Headers)
{
if (entity.IsTopLevel && !header.Field.StartsWith("Content-", StringComparison.OrdinalIgnoreCase))
{
continue;
}
Headers.Add(header);
}
IsInitializing = false;
}
/// <summary>
/// Initializes a new instance of the <see cref="MimeKit.MimeEntity"/> class.
/// </summary>
/// <param name="mediaType">The media type.</param>
/// <param name="mediaSubtype">The media subtype.</param>
/// <exception cref="System.ArgumentNullException">
/// <para><paramref name="mediaType"/> is <c>null</c>.</para>
/// <para>-or-</para>
/// <para><paramref name="mediaSubtype"/> is <c>null</c>.</para>
/// </exception>
protected MimeEntity(string mediaType, string mediaSubtype)
{
ContentType = new ContentType(mediaType, mediaSubtype);
Headers = new HeaderList();
ContentType.Changed += ContentTypeChanged;
Headers.Changed += HeadersChanged;
SerializeContentType();
}
/// <summary>
/// Initializes a new instance of the <see cref="MimeKit.MimeEntity"/> class.
/// </summary>
/// <remarks>
/// Initializes the <see cref="ContentType"/> to the one provided.
/// </remarks>
/// <param name="contentType">The content type.</param>
/// <exception cref="System.ArgumentNullException">
/// <paramref name="contentType"/> is <c>null</c>.
/// </exception>
protected MimeEntity(ContentType contentType)
{
if (contentType == null)
{
throw new ArgumentNullException("contentType");
}
Headers = new HeaderList();
ContentType = contentType;
ContentType.Changed += ContentTypeChanged;
Headers.Changed += HeadersChanged;
SerializeContentType();
}
/// <summary>
/// Asynchronously parses a list of headers from the stream.
/// </summary>
/// <remarks>
/// Parses a list of headers from the stream.
/// </remarks>
/// <returns>The parsed list of headers.</returns>
/// <param name="cancellationToken">The cancellation token.</param>
/// <exception cref="System.OperationCanceledException">
/// The operation was canceled via the cancellation token.
/// </exception>
/// <exception cref="System.FormatException">
/// There was an error parsing the headers.
/// </exception>
/// <exception cref="System.IO.IOException">
/// An I/O error occurred.
/// </exception>
public async Task <HeaderList> ParseHeadersAsync(CancellationToken cancellationToken = default(CancellationToken))
{
state = MimeParserState.Headers;
if (await StepAsync(cancellationToken).ConfigureAwait(false) == MimeParserState.Error)
{
throw new FormatException("Failed to parse headers.");
}
state = eos ? MimeParserState.Eos : MimeParserState.Complete;
var parsed = new HeaderList(options);
foreach (var header in headers)
{
parsed.Add(header);
}
return(parsed);
}
internal MimeMessage(ParserOptions options)
{
addresses = new Dictionary <string, InternetAddressList> (icase);
Headers = new HeaderList(options);
// initialize our address lists
foreach (var name in StandardAddressHeaders)
{
var list = new InternetAddressList();
list.Changed += InternetAddressListChanged;
addresses.Add(name, list);
}
references = new MessageIdList();
references.Changed += ReferencesChanged;
inreplyto = null;
Headers.Changed += HeadersChanged;
}
/// <summary>
/// Initializes a new instance of the <see cref="MimeKit.MimeEntity"/> class
/// based on the <see cref="MimeEntityConstructorArgs"/>.
/// </summary>
/// <remarks>
/// Custom <see cref="MimeEntity"/> subclasses MUST implement this constructor
/// in order to register it using <see cref="ParserOptions.RegisterMimeType"/>.
/// </remarks>
/// <param name="args">Information used by the constructor.</param>
/// <exception cref="System.ArgumentNullException">
/// <paramref name="args"/> is <c>null</c>.
/// </exception>
protected MimeEntity(MimeEntityConstructorArgs args)
{
if (args == null)
{
throw new ArgumentNullException("args");
}
Headers = new HeaderList(args.ParserOptions);
ContentType = args.ContentType;
ContentType.Changed += ContentTypeChanged;
Headers.Changed += HeadersChanged;
foreach (var header in args.Headers)
{
if (args.IsTopLevel && !header.Field.StartsWith("Content-", StringComparison.OrdinalIgnoreCase))
{
continue;
}
Headers.Add(header);
}
}
public ReadForm(MainForm main, Folder folder, string id)
{
InitializeComponent();
Main = main;
email_ref = main.emails.Find(em => em.id == main.curr_id);
this.id = id;
try
{
switch (folder)
{
case Folder.inbox:
Main.curr_client.Inbox.Open(MailKit.FolderAccess.ReadOnly);
message = Main.curr_client.Inbox.First(msg => msg.MessageId == id);
break;
case Folder.sent:
Main.curr_client.GetFolder(MailKit.SpecialFolder.Sent).Open(MailKit.FolderAccess.ReadOnly);
message = Main.curr_client.GetFolder(MailKit.SpecialFolder.Sent).First(msg => msg.MessageId == id);
break;
case Folder.junk:
Main.curr_client.GetFolder(MailKit.SpecialFolder.Junk).Open(MailKit.FolderAccess.ReadOnly);
message = Main.curr_client.GetFolder(MailKit.SpecialFolder.Junk).First(msg => msg.MessageId == id);
break;
case Folder.trash:
Main.curr_client.GetFolder(MailKit.SpecialFolder.Trash).Open(MailKit.FolderAccess.ReadOnly);
message = Main.curr_client.GetFolder(MailKit.SpecialFolder.Trash).First(msg => msg.MessageId == id);
break;
default:
break;
}
}
catch (Exception)
{
message = MimeMessage.Load("Saved/" + email_ref.Address + "/" + folder.ToString() + "/" + id);
}
tb_opentext.Text = message.TextBody;
tb_subject.Text = message.Subject;
tb_from.Text = message.From.Mailboxes.First().Address;
b_attach.Enabled = message.Attachments.Count() > 0;
MimeKit.HeaderList headers = new MimeKit.HeaderList();
if (message.Headers.Contains("keyswap"))
{
if (message.Headers["keyswap"] == "0")//Пришёл запрос
{
if (MessageBox.Show("Произвести обмен ключами шифрования?", "Подтверждение", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
Main.KeyHolders.AddReciever(email_ref.Address, message.From.Mailboxes.First().Address);
Main.KeyHolders.SetKey(email_ref.Address, message.From.Mailboxes.First().Address, message.Headers["keypub"], false);
using (RSACryptoServiceProvider rsa = new RSACryptoServiceProvider())
{
MailMessage replyMail = new MailMessage(new MailAddress(email_ref.Address, email_ref.Name), new MailAddress(message.From.Mailboxes.First().Address))
{
Subject = "ОТВЕТ НА ЗАПРОС ОБМЕНА КЛЮЧАМИ"
};
replyMail.Headers.Add("keyswap", "1");
replyMail.Headers.Add("keypub", rsa.ToXmlString(false));
SmtpClient smtp = new SmtpClient
{
Port = Main.snd_port,
Host = "smtp." + Main.host,
EnableSsl = true,
Timeout = 10000,
DeliveryMethod = SmtpDeliveryMethod.Network,
UseDefaultCredentials = false,
Credentials = new System.Net.NetworkCredential(email_ref.Address, email_ref.Password)
};
try
{
smtp.Send(replyMail);
}
catch (Exception ex)
{
MessageBox.Show("Не удалось отправить запрос\n" + ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
throw;
}
Main.KeyHolders.AddReciever(email_ref.Address, message.From.Mailboxes.First().Address);
Main.KeyHolders.SetKey(email_ref.Address, message.From.Mailboxes.First().Address, rsa.ToXmlString(true), true);
Main.SerializeKeyFile();
}
}
}
else //Пришёл ответ
{
Main.KeyHolders.SetKey(email_ref.Address, message.From.Mailboxes.First().Address, message.Headers["keypub"], false);
Main.SerializeKeyFile();
MessageBox.Show("Запрос подверждён. Теперь можно шифровать письма с данным пользователем", "Запрс подтверждён", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
Close();
}
else
{
if (message.Headers.Contains("crypt")) //Есть флаги-признаки шифрования => отправлено с этого клиента
{
byte cryptF = byte.Parse(message.Headers["crypt"]);
string str = (cryptF & 2) != 0 ? message.TextBody.Substring(0, message.TextBody.IndexOf("\r")) : message.TextBody;
if ((cryptF & 1) != 0)//Флаг подписи
{
byte[] sign = Convert.FromBase64String(message.Headers["dsasign"]);
string dsaKey = message.Headers["dsakey"];
if (Encryption.VerifySign(Encoding.Default.GetBytes(str), dsaKey, sign))
{
MessageBox.Show("Цифровая подпись прошла верификацию", "DSAGuardian", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
MessageBox.Show("Цифровая подпись не прошла верификацию. Данные могли быть повреждены", "DSAGuardian", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
if ((cryptF & 2) != 0)//Флаг шифрования
{
byte[] buff = Convert.FromBase64String(message.Headers["deskey"]);
byte[] Key;
using (RSACryptoServiceProvider rsa = new RSACryptoServiceProvider())
{
rsa.FromXmlString(Main.KeyHolders.GetKey(email_ref.Address, message.From.Mailboxes.First().Address, true));
Key = Encryption.DecRSA(buff, rsa.ExportParameters(true), true);
}
byte[] IV = Convert.FromBase64String(message.Headers["desiv"]);
tb_opentext.Text = Encryption.DecDES(Convert.FromBase64String(str), Key, IV);
}
}
}
}
