/// <summary>
/// Upon the initial connection, we will be presented with a banner and status
/// </summary>
void OnChannelConnected(FtpChannel c)
{
if (this.SslMode == FtpSslMode.Implicit)
{
// The connection should already be encrypted
// so authenticate the connection and then
// try to read the initial greeting.
this.AuthenticateConnection();
}
if (!this.ReadResponse())
{
this.Disconnect();
throw new FtpCommandException(this);
}
if (this.SslMode == FtpSslMode.Explicit)
{
if (this.Execute("AUTH TLS") || this.Execute("AUTH SSL"))
{
this.AuthenticateConnection();
}
else if (this._secNotAvailable != null)
{
FtpSecurityNotAvailable secna = new FtpSecurityNotAvailable(this);
this._secNotAvailable(secna);
if (secna.Cancel)
{
throw new FtpCommandException(this);
}
}
}
if (this.SslEnabled && this.DataChannelEncryption)
{
if (!this.Execute("PBSZ 0"))
{
// do nothing? some severs don't even
// care if you execute PBSZ however rfc 4217
// says that PBSZ is required if you want
// data channel security.
//throw new FtpCommandException(this);
#if DEBUG
System.Diagnostics.Debug.WriteLine("PBSZ ERROR: " + this.ResponseMessage);
#endif
}
if (!this.Execute("PROT P")) // turn on data channel protection.
{
throw new FtpCommandException(this);
}
}
this.Capabilities = FtpCapability.EMPTY;
}
static void OnSecurityNotAvailable(FtpSecurityNotAvailable e)
{
// SSL/TLS could not be negotiated with the AUTH command.
// If you do not want login credentials to be sent in plain
// text set the e.Cancel property true to cancel the login.
// Doing so with trigger a FtpCommandException to be thrown
// for the failed AUTH command.
e.Cancel = false;
}
/// <summary>
/// Upon the initial connection, we will be presented with a banner and status
/// </summary>
void OnChannelConnected(FtpChannel c) {
if (this.SslMode == FtpSslMode.Implicit) {
// The connection should already be encrypted
// so authenticate the connection and then
// try to read the initial greeting.
this.AuthenticateConnection();
}
if (!this.ReadResponse()) {
this.Disconnect();
throw new FtpCommandException(this);
}
if (this.SslMode == FtpSslMode.Explicit) {
if (this.Execute("AUTH TLS") || this.Execute("AUTH SSL")) {
this.AuthenticateConnection();
}
else if (this._secNotAvailable != null) {
FtpSecurityNotAvailable secna = new FtpSecurityNotAvailable(this);
this._secNotAvailable(secna);
if (secna.Cancel) {
throw new FtpCommandException(this);
}
}
}
if (this.SslEnabled && this.DataChannelEncryption) {
if (!this.Execute("PBSZ 0")) {
// do nothing? some severs don't even
// care if you execute PBSZ however rfc 4217
// says that PBSZ is required if you want
// data channel security.
//throw new FtpCommandException(this);
#if DEBUG
System.Diagnostics.Debug.WriteLine("PBSZ ERROR: " + this.ResponseMessage);
#endif
}
if (!this.Execute("PROT P")) { // turn on data channel protection.
throw new FtpCommandException(this);
}
}
this.Capabilities = FtpCapability.EMPTY;
}
