/// <summary>
/// Выполняет отправку ip и port на почтовый сервер
/// </summary>
/// <param name="hostname"></param>
/// <param name="port"></param>
/// <param name="login"></param>
/// <param name="pass"></param>
/// <param name="data"></param>
/// <returns></returns>
public static bool SendServerIpPortToMail(string hostname, int port, string login, string pass, IpPortData data)
{
bool res = true;
TcpClient tc = null;
SslStream ssl = null;
try
{
LogWriter.SendLog($"Передача данных о сервере на {login}");
tc = new TcpClient();
tc.Connect(hostname, port);
ssl = new SslStream(tc.GetStream());
ssl.AuthenticateAsClient(hostname);
ssl.ReadTimeout = 2000;
ssl.Write(toByte($"EHLO A01\r\nAUTH LOGIN {toBase64(login)}\r\n{toBase64(pass)}\r\nMAIL FROM: <{login}>\r\nrcpt to: <{login}>\r\nDATA\r\nSubject: RC\r\n\n"));
ssl.Write(codeBuf(Protocol.ObjectToBuffer(data)));
ssl.Write(toByte("\n.\r\n"));
string reply = readData(ssl);
if (reply.Contains("Username and Password not accepted"))
{
throw new Exception("Username and Password not accepted");
}
LogWriter.SendLog($"Передача данных выполнена: {data.Ip}:{data.Port}");
}
catch (Exception e)
{
LogWriter.SendLog(e.Message, ConsoleColor.Red);
res = false;
}
finally
{
if (ssl != null)
{
ssl.Close();
}
Protocol.ProtectedCloseSocket(tc.Client);
}
return(res);
}
/// <summary>
/// Возвращает ip и port хранящиеся на почте либо null
/// </summary>
/// <param name="hostname"></param>
/// <param name="port"></param>
/// <param name="login"></param>
/// <param name="pass"></param>
/// <returns></returns>
public static IpPortData ReadServerIpPortFromMail(string hostname, int port, string login, string pass)
{
IpPortData res = null;
LogWriter.SendLog($"Чтение данных о сервере {login}");
TcpClient tc = null;
SslStream ssl = null;
try
{
tc = new TcpClient();
tc.Connect(hostname, port);
ssl = new SslStream(tc.GetStream());
ssl.AuthenticateAsClient(hostname);
ssl.ReadTimeout = 2000;
ssl.Write(toByte($"A01 LOGIN {login} {pass}\r\nA02 SELECT INBOX\r\n"));
string reply = readData(ssl);
if (reply.Contains("[AUTHENTICATIONFAILED]"))
{
throw new Exception("AUTHENTICATIONFAILED");
}
string mailcount = string.Empty;
string countstring = string.Empty;
try
{
countstring = reply.Split('\n').First(x => x.Contains("EXISTS"));
}
catch
{
throw new Exception($"Получен не верный ответ от почтового сервера\n{reply}");
}
for (int i = 0; i < countstring.Length; i += 1)
{
if (int.TryParse(countstring[i].ToString(), out _))
{
mailcount += countstring[i];
}
}
if (mailcount.Length > 0 && int.Parse(mailcount) == 0)
{
throw new Exception("Нет сохраненных сообщений");
}
ssl.Write(toByte($"A03 FETCH {mailcount} rfc822.text\r\n"));
byte[] data = readDataBuf(ssl);
byte[] r = new byte[24];
bool okr = false;
for (int i = 0; i < data.Length; i += 1)
{
if (data[i] == 60 && i + 26 < data.Length && data[i + 25] == 62)
{
Array.Copy(data, i + 1, r, 0, 24);
okr = true;
for (int ii = 0; ii < 24; ii += 1)
{
if (r[ii] > 58 || r[ii] < 48)
{
okr = false;
break;
}
}
if (okr)
{
break;
}
}
}
if (!okr)
{
throw new Exception("Последнее сообщение не содержит полезного контента");
}
res = Protocol.BufferToObject <IpPortData>(decodeBuf(r));
LogWriter.SendLog($"Чтение данных выполнено: {res.Ip}:{res.Port}");
}
catch (Exception e)
{
LogWriter.SendLog(e.Message, ConsoleColor.Red);
}
finally
{
if (ssl != null)
{
ssl.Close();
}
Protocol.ProtectedCloseSocket(tc.Client);
}
return(res);
}
