/// <summary>
/// Send command to server and retrieve response
/// </summary>
/// <param name="command">Command to send Imap Server</param>
/// <param name="sResultArray">Imap Server response</param>
/// <returns>ImapResponseEnum type</returns>
protected ImapResponseEnum SendAndReceiveByNumLines(string command, ref ArrayList sResultArray, int nNumLines)
{
IMAP_COMMAND_VAL++;
int nLineCount = 0;
string sCommand = IMAP_COMMAND_IDENTIFIER + command;
ImapResponseEnum eImapResponse = ImapResponseEnum.IMAP_SUCCESS_RESPONSE;
Log(LogTypeEnum.IMAP, sCommand.TrimEnd(IMAP_COMMAND_EOL.ToCharArray()));
byte [] data = System.Text.Encoding.ASCII.GetBytes(sCommand.ToCharArray());
try
{
m_oNetStrm.Write(data, 0, data.Length);
bool bRead = true;
while (bRead)
{
string sResult = m_oRdStrm.ReadLine();
sResultArray.Add(sResult);
nLineCount++;
if (sResult.StartsWith(IMAP_SERVER_RESPONSE_OK) ||
nLineCount == nNumLines)
{
bRead = false;
Log(LogTypeEnum.IMAP, sResult);
eImapResponse = ImapResponseEnum.IMAP_SUCCESS_RESPONSE;
}
else if (sResult.StartsWith(IMAP_SERVER_RESPONSE_NO))
{
bRead = false;
Log(LogTypeEnum.IMAP, sResult);
eImapResponse = ImapResponseEnum.IMAP_FAILURE_RESPONSE;
}
else if (sResult.StartsWith(IMAP_SERVER_RESPONSE_BAD))
{
bRead = false;
Log(LogTypeEnum.IMAP, sResult);
eImapResponse = ImapResponseEnum.IMAP_FAILURE_RESPONSE;
}
else
{
Log(LogTypeEnum.IMAP, sResult);
}
}
}
catch (Exception e)
{
//LogOut();
throw new ImapException(ImapException.ImapErrorEnum.IMAP_ERR_SERIOUS, e.Message);
}
Log(LogTypeEnum.IMAP, "");
return(eImapResponse);
}
/// <summary>
/// IMAP Capability command
/// </summary>
public void Capability()
{
ArrayList sResultArray = new ArrayList();
string capabilityCommand = IMAP_CAPABILITY_COMMAND;
capabilityCommand += IMAP_COMMAND_EOL;
ImapResponseEnum eImapResponse = SendAndReceive(capabilityCommand, ref sResultArray);
if (eImapResponse != ImapResponseEnum.IMAP_SUCCESS_RESPONSE)
{
throw new ImapException(ImapException.ImapErrorEnum.IMAP_ERR_CAPABILITY);
}
}
/// <summary>
/// retrieve response
/// </summary>
/// <param name="command">Command to send Imap Server</param>
/// <param name="sResultArray">Imap Server response</param>
/// <returns>ImapResponseEnum type</returns>
protected ImapResponseEnum Receive(ref ArrayList sResultArray)
{
ImapResponseEnum eImapResponse = ImapResponseEnum.IMAP_SUCCESS_RESPONSE;
try
{
bool bRead = true;
while (bRead)
{
string sResult = m_oRdStrm.ReadLine();
sResultArray.Add(sResult);
if (sResult.StartsWith(IMAP_SERVER_RESPONSE_OK))
{
bRead = false;
Log(LogTypeEnum.IMAP, sResult);
eImapResponse = ImapResponseEnum.IMAP_SUCCESS_RESPONSE;
}
else if (sResult.StartsWith(IMAP_SERVER_RESPONSE_NO))
{
bRead = false;
Log(LogTypeEnum.IMAP, sResult);
eImapResponse = ImapResponseEnum.IMAP_FAILURE_RESPONSE;
}
else if (sResult.StartsWith(IMAP_SERVER_RESPONSE_BAD))
{
bRead = false;
Log(LogTypeEnum.IMAP, sResult);
eImapResponse = ImapResponseEnum.IMAP_FAILURE_RESPONSE;
}
else
{
Log(LogTypeEnum.IMAP, sResult);
}
}
}
catch (Exception e)
{
//LogOut();
throw new ImapException(ImapException.ImapErrorEnum.IMAP_ERR_SERIOUS, e.Message);
}
Log(LogTypeEnum.IMAP, "");
return(eImapResponse);
}
/// <summary>
/// Connect to specified host and port
/// </summary>
/// <param name="sHost">Imap host</param>
/// <param name="nPort">Imap port</param>
/// <param name="sslEnabled"> </param>
/// <returns>ImapResponseEnum type</returns>
protected ImapResponseEnum Connect(string sHost, ushort nPort, bool sslEnabled = false)
{
IMAP_COMMAND_VAL = 0;
ImapResponseEnum eImapResponse = ImapResponseEnum.IMAP_SUCCESS_RESPONSE;
ImapException e_connect = new ImapException(ImapException.ImapErrorEnum.IMAP_ERR_CONNECT, sHost);
try
{
m_oImapServ = new TcpClient(sHost, nPort);
if (sslEnabled)
{
var sslStrm = new SslStream(m_oImapServ.GetStream(), false, new RemoteCertificateValidationCallback(ValidateServerCertificate), null);
//m_SSLStream.ReadTimeout = 30000;
try
{
sslStrm.AuthenticateAsClient(sHost);
}
catch (AuthenticationException e)
{
Console.WriteLine("Exception: {0}", e.Message);
if (e.InnerException != null)
{
Console.WriteLine("Inner exception: {0}", e.InnerException.Message);
}
Console.WriteLine("Authentication failed - closing the connection.");
m_oImapServ.Close();
return(ImapResponseEnum.IMAP_FAILURE_RESPONSE);
}
m_oNetStrm = (Stream)sslStrm;
m_oRdStrm = new StreamReader(sslStrm);
}
else
{
m_oNetStrm = m_oImapServ.GetStream();
m_oRdStrm = new StreamReader(m_oImapServ.GetStream());
}
string sResult = m_oRdStrm.ReadLine();
if ((sResult.StartsWith(IMAP_OK_SERVER_RESPONSE) == true) || (sResult.StartsWith(IMAP_CAPABILITY_SERVER_RESPONSE) == true))
{
Log(LogTypeEnum.IMAP, sResult);
eImapResponse = ImapResponseEnum.IMAP_SUCCESS_RESPONSE;
Capability();
}
else
{
Log(LogTypeEnum.IMAP, sResult);
eImapResponse = ImapResponseEnum.IMAP_FAILURE_RESPONSE;
}
}
catch
{
throw e_connect;
}
m_sHost = sHost;
m_nPort = nPort;
m_bSSLEnabled = sslEnabled;
return(eImapResponse);
}
