// --------------------------- constructor -----------------------
public Pop3Message(
Int64 InMailDropPosition,
SocketExchange InEx)
{
m_inboxPosition = InMailDropPosition;
mSockEx = InEx;
// object used to receive the mail message in a background thread.
mSockThreadState = new SockThreadState( );
mSockThreadState.SockEx = InEx;
mSockThreadState.sb = new StringBuilder( );
// load email ...
LoadEmail(InEx, InMailDropPosition);
// get body (if it exists) ...
IEnumerator multipartEnumerator = MultipartEnumerator;
while (multipartEnumerator.MoveNext())
{
Pop3Component multipart = (Pop3Component)
multipartEnumerator.Current;
if (multipart.IsBody)
{
m_body = multipart.Data;
break;
}
}
}
// ---------------------- LoadEmail ---------------------------
private void LoadEmail(SocketExchange InEx, Int64 InMailDropPosition)
{
// tell the server we want to read the message.
InEx.Send("retr " + InMailDropPosition + PopConstants.CrLf);
InEx.ExpectedResponseCodes =
new ExpectedResponseCodes(PopConstants.Ok, PopConstants.Error);
InEx.SendReceive("retr " + InMailDropPosition + PopConstants.CrLf);
InEx.ThrowIfUnexpectedResponse( );
// -ERR response. no such message number.
if (InEx.ResponseCode == PopConstants.Error)
{
}
else
{
// for now, receive SSL link messages in the same thread.
if (InEx.ConnectedSecureSocket != null)
{
StringBuilder mail = null;
mail = ReceiveMessage_SameThread(InEx);
InEx.LoadResponseMessage(mail.ToString( ));
}
// receive in a background thread.
else
{
StartReceive(InEx);
InEx.LoadResponseMessage(mSockThreadState.sb.ToString( ));
}
}
// parse email ...
mParts = MimeCommon.MessagePartSplitter(InEx.ResponseMessage);
string[] lines = MimeCommon.MessageLineSplitter(InEx.ResponseMessage);
mAttachments = null;
MimeAttachment attach = (MimeAttachment)Attachments.FirstAttachment( ).Current;
if (attach != null)
{
attach.SaveAs("c:\\apress\\attachment.txt");
}
// if (1 == 2)
// DumpHeader(InEx, InMailDropPosition);
for (int ix = 0; ix < lines.Length; ++ix)
{
InEx.Logger.AddMessage(NetworkRole.Server, lines[ix]);
}
ParseEmail(lines);
// remove reading pop3State ...
mSockThreadState = null;
}
// ------------------------- ReceiveCallback -------------------------
// receive MailMessage in background thread.
private void ReceiveCallback(IAsyncResult InResult)
{
try
{
// Retrieve the state object and the client socket
// from the asynchronous state object.
SockThreadState sockThreadState =
(SockThreadState)InResult.AsyncState;
SocketExchange sockEx = sockThreadState.SockEx;
Socket client = sockEx.ConnectedSocket;
Socket secureSock = sockEx.ConnectedSecureSocket;
int BufferSx = SockThreadState.BufferSize;
int LoopCx = 0;
while (true)
{
// a simple loop count. dont let it overflow.
++LoopCx;
if (LoopCx > 1000)
{
LoopCx = 2;
}
// receive from the socket.
int ReadCx;
if (LoopCx == 1)
{
if (client != null)
{
ReadCx = client.EndReceive(InResult);
}
else
{
ReadCx = secureSock.EndReceive(InResult);
}
}
else
{
if (client != null)
{
ReadCx = client.Receive(
sockThreadState.buffer, 0, BufferSx, SocketFlags.None);
}
else
{
ReadCx = secureSock.Receive(
sockThreadState.buffer, 0, BufferSx, SocketFlags.None);
}
}
// did not receive anything. probably should leave.
if (ReadCx == 0)
{
break;
}
// There might be more data,
// so store the data received so far.
string block = Encoding.ASCII.GetString(sockThreadState.buffer, 0, ReadCx);
sockThreadState.sb.Append(block);
// is this the end of the message
if (sockThreadState.sb.Tail(5) == "\r\n.\r\n")
{
break;
}
}
}
catch (Exception e)
{
throw new
Pop3ReceiveException(
"ReceiveCallback error" +
e.ToString( ));
}
finally
{
m_manualEvent.Set( );
}
}
// ---------------------- LoadEmail ---------------------------
private void LoadEmail(SocketExchange InEx, System.Int64 InMailDropPosition)
{
// tell the server we want to read the message.
InEx.Send("retr " + InMailDropPosition + PopConstants.CrLf);
InEx.ExpectedResponseCodes =
new ExpectedResponseCodes(PopConstants.Ok, PopConstants.Error);
InEx.SendReceive("retr " + InMailDropPosition + PopConstants.CrLf);
InEx.ThrowIfUnexpectedResponse( );
// -ERR response. no such message number.
if (InEx.ResponseCode == PopConstants.Error)
{
}
else
{
// for now, receive SSL link messages in the same thread.
if (InEx.ConnectedSecureSocket != null)
{
StringBuilder mail = null;
mail = ReceiveMessage_SameThread(InEx);
InEx.LoadResponseMessage(mail.ToString( ));
}
// receive in a background thread.
else
{
StartReceive(InEx);
InEx.LoadResponseMessage(mSockThreadState.sb.ToString( ));
}
}
// parse email ...
mParts = MimeCommon.MessagePartSplitter(InEx.ResponseMessage);
string[] lines = MimeCommon.MessageLineSplitter(InEx.ResponseMessage);
if (1 == 2)
{
mParts = MimeCommon.MessagePartSplitter(lines);
}
mAttachments = null;
MimeAttachment attach = (MimeAttachment)Attachments.FirstAttachment( ).Current;
if (attach != null)
{
attach.SaveAs("c:\\apress\\attachment.txt");
}
if (1 == 2)
{
// dump the header lines of the top part.
InEx.Logger.AddMessage(NetworkRole.Server, "--- start header line dump ---");
MimeTopPart topPart = ( MimeTopPart )mParts.GetTopPart( );
for (int Ix = 0; Ix < topPart.PropertyLines.Length; ++Ix)
{
InEx.Logger.AddMessage(NetworkRole.Server, topPart.PropertyLines[Ix]);
}
for (int Ix = 0; Ix < topPart.MessageLines.Length; ++Ix)
{
InEx.Logger.AddMessage(NetworkRole.Server, topPart.MessageLines[Ix]);
}
InEx.Logger.AddMessage(NetworkRole.Server, "--- end of header line dump ---");
// dump the lines of each part.
foreach (MimeMessagePart part in mParts)
{
InEx.Logger.AddMessage(NetworkRole.Server, "** message part **");
InEx.Logger.AddMessage(NetworkRole.Server, "** property lines **");
foreach (string line in part.PropertyLines)
{
InEx.Logger.AddMessage(NetworkRole.Server, line);
}
InEx.Logger.AddMessage(NetworkRole.Server, "** message lines **");
foreach (string line in part.MessageLines)
{
InEx.Logger.AddMessage(NetworkRole.Server, line);
}
}
InEx.Logger.AddMessage(NetworkRole.Server, "---- end of parts ----------");
}
for (int ix = 0; ix < lines.Length; ++ix)
{
InEx.Logger.AddMessage(NetworkRole.Server, lines[ix]);
}
ParseEmail(lines);
// remove reading pop3State ...
mSockThreadState = null;
}