/// <summary>
/// Is called when EHLO/HELO command has completed.
/// </summary>
/// <param name="op">Asynchronous operation.</param>
/// <exception cref="ArgumentNullException">Is raised when <b>op</b> is null reference.</exception>
private void ConnectCompleted(TCP_Client.ConnectAsyncOP op)
{
if(op == null){
throw new ArgumentNullException("op");
}
try{
// Connect failed.
if(op.Error != null){
try{
// Release IP usage.
m_pServer.RemoveIpUsage(m_pActiveTarget.Target.Address);
m_pActiveTarget = null;
// Connect failed, if there are more target IPs, try next one.
if(!this.IsDisposed && !this.IsConnected && m_pTargets.Count > 0){
BeginConnect();
}
else{
Dispose(op.Error);
}
}
catch(Exception x1){
Dispose(x1);
}
}
// Connect suceeded.
else{
// Do EHLO/HELO.
string hostName = string.IsNullOrEmpty(m_pLocalBindInfo.HostName) ? Dns.GetHostName() : m_pLocalBindInfo.HostName;
SMTP_Client.EhloHeloAsyncOP ehloOP = new SMTP_Client.EhloHeloAsyncOP(hostName);
ehloOP.CompletedAsync += delegate(object s,EventArgs<SMTP_Client.EhloHeloAsyncOP> e){
EhloCommandCompleted(ehloOP);
};
if(!m_pSmtpClient.EhloHeloAsync(ehloOP)){
EhloCommandCompleted(ehloOP);
}
}
}
catch(Exception x){
Dispose(x);
}
}
/// <summary>
/// Is called when STARTTLS command has completed.
/// </summary>
/// <param name="op">Asynchronous operation.</param>
/// <exception cref="ArgumentNullException">Is raised when <b>op</b> is null reference.</exception>
private void StartTlsCommandCompleted(SMTP_Client.StartTlsAsyncOP op)
{
if(op == null){
throw new ArgumentNullException("op");
}
try{
if(op.Error != null){
Dispose(op.Error);
}
else{
// Do EHLO/HELO.
string hostName = string.IsNullOrEmpty(m_pLocalBindInfo.HostName) ? Dns.GetHostName() : m_pLocalBindInfo.HostName;
SMTP_Client.EhloHeloAsyncOP ehloOP = new SMTP_Client.EhloHeloAsyncOP(hostName);
ehloOP.CompletedAsync += delegate(object s,EventArgs<SMTP_Client.EhloHeloAsyncOP> e){
EhloCommandCompleted(ehloOP);
};
if(!m_pSmtpClient.EhloHeloAsync(ehloOP)){
EhloCommandCompleted(ehloOP);
}
}
}
catch(Exception x){
Dispose(x);
}
}
/// <summary>
/// Is called when STARTTLS command has completed.
/// </summary>
/// <param name="op">Asynchronous operation.</param>
/// <exception cref="ArgumentNullException">Is raised when <b>op</b> is null reference.</exception>
private void StartTlsCommandCompleted(SMTP_Client.StartTlsAsyncOP op)
{
if(op == null){
throw new ArgumentNullException("op");
}
try{
if(op.Error != null){
Dispose(op.Error);
}
else{
// Do EHLO/HELO.
SMTP_Client.EhloHeloAsyncOP ehloOP = new SMTP_Client.EhloHeloAsyncOP(null);
ehloOP.CompletedAsync += delegate(object s,EventArgs<SMTP_Client.EhloHeloAsyncOP> e){
EhloCommandCompleted(ehloOP);
};
if(!m_pSmtpClient.EhloHeloAsync(ehloOP)){
EhloCommandCompleted(ehloOP);
}
}
}
catch(Exception x){
Dispose(x);
}
}
