/// parses a new response object from a response string
public static SmtpResponse Parse(string line)
{
SmtpResponse response = new SmtpResponse();
if (line.Length < 4)
{
throw new SmtpException("Response is to short " +
line.Length + ".");
}
if ((line[3] != ' ') && (line[3] != '-'))
{
throw new SmtpException("Response format is wrong.(" +
line + ")");
}
// parse the response code
response.StatusCode = Int32.Parse(line.Substring(0, 3));
// set the rawsponse
response.RawResponse = line;
// set the response parts
response.Parts = line.Substring(0, 3).Split(';');
return(response);
}
// read a line from the server
public void ReadResponse( )
{
byte[] buffer = new byte [512];
int position = 0;
bool lastLine = false;
do
{
int readLength = stream.Read(buffer, position, buffer.Length - position);
if (readLength > 0)
{
int available = position + readLength - 1;
if (available > 4 && (buffer [available] == '\n' || buffer [available] == '\r'))
{
for (int index = available - 3; ; index--)
{
if (index < 0 || buffer [index] == '\n' || buffer [index] == '\r')
{
lastLine = buffer [index + 4] == ' ';
break;
}
}
}
// move position
position += readLength;
// check if buffer is full
if (position == buffer.Length)
{
byte [] newBuffer = new byte [buffer.Length * 2];
Array.Copy(buffer, 0, newBuffer, 0, buffer.Length);
buffer = newBuffer;
}
}
} while(!lastLine);
string line = encoding.GetString(buffer, 0, position - 1);
// parse the line to the lastResponse object
lastResponse = SmtpResponse.Parse(line);
Debug.WriteLine("smtp: {0}", line);
}
/// parses a new response object from a response string
public static SmtpResponse Parse( string line ) {
SmtpResponse response = new SmtpResponse();
if( line.Length < 4 )
throw new SmtpException( "Response is to short " +
line.Length + ".");
if( ( line[ 3 ] != ' ' ) && ( line[ 3 ] != '-' ) )
throw new SmtpException( "Response format is wrong.(" +
line + ")" );
// parse the response code
response.StatusCode = Int32.Parse( line.Substring( 0 , 3 ) );
// set the rawsponse
response.RawResponse = line;
// set the response parts
response.Parts = line.Substring( 0 , 3 ).Split( ';' );
return response;
}
private static bool CheckResponse( Socket socket, SmtpResponse response )
{
int byteCount = socket.Receive( m_Buffer, 0, m_Buffer.Length, SocketFlags.None );
if ( byteCount <= 2 )
{
Shutdown( socket );
return false;
}
int resp = (int)response;
byte dig1 = (byte)( '0' + ((resp / 100) % 10) );
byte dig2 = (byte)( '0' + ((resp / 10) % 10) );
byte dig3 = (byte)( '0' + ((resp / 1) % 10) );
bool valid = ( m_Buffer[0] == dig1 && m_Buffer[1] == dig2 && m_Buffer[2] == dig3 );
if ( !valid )
Shutdown( socket );
return valid;
}
// read a line from the server
public void ReadResponse( ) {
byte[] buffer = new byte [512];
int position = 0;
bool lastLine = false;
do {
int readLength = stream.Read (buffer , position , buffer.Length - position);
if (readLength > 0) {
int available = position + readLength - 1;
if (available > 4 && (buffer [available] == '\n' || buffer [available] == '\r'))
for (int index = available - 3; ; index--) {
if (index < 0 || buffer [index] == '\n' || buffer [index] == '\r') {
lastLine = buffer [index + 4] == ' ';
break;
}
}
// move position
position += readLength;
// check if buffer is full
if (position == buffer.Length) {
byte [] newBuffer = new byte [buffer.Length * 2];
Array.Copy (buffer, 0, newBuffer, 0, buffer.Length);
buffer = newBuffer;
}
}
} while(!lastLine);
string line = encoding.GetString (buffer , 0 , position - 1);
// parse the line to the lastResponse object
lastResponse = SmtpResponse.Parse (line);
Debug.WriteLine ("smtp: {0}", line);
}
private bool CheckResponse(SmtpResponse expected)
{
string sResponse = null;
int response = 0;
byte[] bytes = new byte[1024];
while (socket.Available == 0)
{
System.Threading.Thread.Sleep(100);
}
socket.Receive(bytes, 0, socket.Available, SocketFlags.None);
sResponse = Encoding.ASCII.GetString(bytes);
response = Convert.ToInt32(sResponse.Substring(0, 3));
if (response != (int)expected)
{
return false;
}
return true;
}
// read a line from the server
public void ReadResponse( ) {
string line = null;
byte[] buffer = new byte[ 4096 ];
int readLength = stream.Read( buffer , 0 , buffer.Length );
if( readLength > 0 ) {
line = encoding.GetString( buffer , 0 , readLength );
line = line.TrimEnd( new Char[] { '\r' , '\n' , ' ' } );
}
// parse the line to the lastResponse object
lastResponse = SmtpResponse.Parse( line );
#if DEBUG
DebugPrint( line );
#endif
}