main.cpp

pop3接收邮件通信程序

#include "stdafx.h"
#include "pop3.h"


class CApp : public CWinApp
{
protected:
  virtual BOOL InitInstance();
};

CApp theApp;


BOOL CApp::InitInstance()
{
  ///* //When you want to test the parsing without having to download an email
  CFile f2;
  CPop3Message message2;
  if(f2.Open(_T("c:\\message.dat"), CFile::modeRead | CFile::shareDenyWrite))
  {
    DWORD dwLength = f2.GetLength();
    message2.m_pszMessage = new char[dwLength];
    f2.Read(message2.m_pszMessage, dwLength);
  }
  else
  TRACE(_T("Failed to write message to file\n"));

  CString sHeader = message2.GetHeader();
  CString sTo = message2.GetHeaderItem(_T("To"));
  CString sBody = message2.GetBody();
	LPCSTR  lpszBody = message2.GetRawBody();
	CString sSubject = message2.GetSubject();
	CString sFrom = message2.GetFrom();
	CString sDate = message2.GetDate();
	CString sReplyTo = message2.GetReplyTo();
  CString sReceived1 = message2.GetHeaderItem("Received", 0);
  CString sReceived2 = message2.GetHeaderItem("Received", 1);
  CString sReceived3 = message2.GetHeaderItem("Received", 2);
  CString sReceived4 = message2.GetHeaderItem("Received", 3);
  CString sReceived5 = message2.GetHeaderItem("Received", 4);

  return FALSE;
  //*/

	//initialise sockets
	if (!AfxSocketInit())
  {
    TRACE(_T("Failed to initialise the Winsock stack\n"));
    return FALSE;
  }

	//try out the POP3 Client class
  CPop3Connection p3;

	//you should change the parameters address, name and password 
  //to connect to your own POP3 mailbox
	if (!p3.Connect(_T("mail.someisp.com"), _T("auser"), _T("apassword")))
  {
    DWORD dwError = GetLastError();
		CString sError = p3.GetLastCommandResponse();
    return FALSE;
  }

	if (!p3.Noop())
  {
    DWORD dwError = GetLastError();
		CString sError = p3.GetLastCommandResponse();
  }

	int nMails;
	int nSize;
  if (!p3.Statistics(nMails, nSize))
  {
    DWORD dwError = GetLastError();
		CString sError = p3.GetLastCommandResponse();
  }

  if (nMails)
  {
    CPop3Message message;
    DWORD dwSize;
    if (!p3.GetMessageSize(1, dwSize))
    {
      DWORD dwError = GetLastError();
			CString sError = p3.GetLastCommandResponse();
    }
    if (!p3.Retrieve(1, message))
    {
      DWORD dwError = GetLastError();
			CString sError = p3.GetLastCommandResponse();
    }
    else
    {
      //Same the mail to a file on disk
      CFile f;
      if (f.Open(_T("c:\\message.dat"), CFile::modeCreate | CFile::modeWrite | CFile::shareDenyWrite))
      {
        LPCSTR pszMessage = message.GetMessageText();
        f.Write(pszMessage, strlen(pszMessage));
      }
      else
        TRACE(_T("Failed to write message to file\n"));
    }

    for (int i=1; i<=nMails; i++)
    {
      CString sID;
      if (!p3.GetMessageID(i, sID))
      {
        DWORD dwError = GetLastError();
  			CString sError = p3.GetLastCommandResponse();
      }
    }

    if (!p3.Delete(1))
    {
      DWORD dwError = GetLastError();
			CString sError = p3.GetLastCommandResponse();
    }

    if (p3.Delete(nMails+1))
    {    
      DWORD dwError = GetLastError();
			CString sError = p3.GetLastCommandResponse();
      TRACE(_T("Succeeded in deleting a non-existance message ???\n"));
    }

    if (!p3.Reset())
    {
      DWORD dwError = GetLastError();
			CString sError = p3.GetLastCommandResponse();
    }
  }
  else
    TRACE(_T("No mails waiting for you at the POP3 server\n"));


  if (!p3.Disconnect())
  {
    DWORD dwError = GetLastError();
		CString sError = p3.GetLastCommandResponse();
  }

	return FALSE;
}