C++程序发送邮件（可带附件）

////////////////////////////////////////////////////////////////////// // Original class CFastSmtp written by // christopher w. backen <immortal@cox.net> // More details at: http://www.codeproject.com/KB/IP/zsmtp.aspx // // Modifications: // 1. name of the class and some functions // 2. new functions added: SendData,ReceiveData and more // 3. authentication added // 4. attachments added // introduced by Jakub Piwowarczyk <podsaski@gmail.com> // More details at: http://www.codeproject.com/KB/mcpp/CSmtp.aspx ////////////////////////////////////////////////////////////////////// #include "CSmtp.h" #pragma warning(push) #pragma warning(disable:4786) ////////////////////////////////////////////////////////////////////// // Construction/Destruction ////////////////////////////////////////////////////////////////////// CSmtp::CSmtp() { // Initialize variables m_oError = CSMTP_NO_ERROR; m_iXPriority = XPRIORITY_NORMAL; m_iSMTPSrvPort = 0; m_pcLocalHostName = NULL; m_pcMailFrom = NULL; m_pcNameFrom = NULL; m_pcSubject = NULL; m_pcMsgBody = NULL; m_pcXMailer = NULL; m_pcReplyTo = NULL; m_pcLogin = NULL; m_pcPassword = NULL; m_pcSMTPSrvName = NULL; if((RecvBuf = new char[BUFFER_SIZE]) == NULL) { m_oError = CSMTP_LACK_OF_MEMORY; return; } if((SendBuf = new char[BUFFER_SIZE]) == NULL) { m_oError = CSMTP_LACK_OF_MEMORY; return; } // Initialize WinSock WORD wVer = MAKEWORD(2,2); if (WSAStartup(wVer,&wsaData) != NO_ERROR) { m_oError = CSMTP_WSA_STARTUP; return; } if (LOBYTE( wsaData.wVersion ) != 2 || HIBYTE( wsaData.wVersion ) != 2 ) { m_oError = CSMTP_WSA_VER; WSACleanup(); return; } } CSmtp::~CSmtp() { // Clear vectors Recipients.clear(); CCRecipients.clear(); BCCRecipients.clear(); Attachments.clear(); // Free memory if (m_pcLocalHostName) delete[] m_pcLocalHostName; if (m_pcMailFrom) delete[] m_pcMailFrom; if (m_pcNameFrom) delete[] m_pcNameFrom; if (m_pcSubject) delete[] m_pcSubject; if (m_pcMsgBody) delete[] m_pcMsgBody; if (m_pcXMailer) delete[] m_pcXMailer; if (m_pcReplyTo) delete[] m_pcReplyTo; if (m_pcLogin) delete[] m_pcLogin; if (m_pcPassword) delete[] m_pcPassword; if(SendBuf) delete[] SendBuf; if(RecvBuf) delete[] RecvBuf; // Cleanup WSACleanup(); } ////////////////////////////////////////////////////////////////////// // Methods ////////////////////////////////////////////////////////////////////// bool CSmtp::AddAttachment(const char *path) { std::string str(path); Attachments.insert(Attachments.end(),str); return true; } bool CSmtp::AddRecipient(const char *email, const char *name) { assert(email); if(!email) { m_oError = CSMTP_UNDEF_RECIPENT_MAIL; return false; } Recipent recipent; recipent.Mail.insert(0,email); name!=NULL ? recipent.Name.insert(0,name) : recipent.Name.insert(0,""); Recipients.insert(Recipients.end(), recipent); return true; } bool CSmtp::AddCCRecipient(const char *email, const char *name) { assert(email); if(!email) { m_oError = CSMTP_UNDEF_RECIPENT_MAIL; return false; } Recipent recipent; recipent.Mail.insert(0,email); name!=NULL ? recipent.Name.insert(0,name) : recipent.Name.insert(0,""); CCRecipients.insert(CCRecipients.end(), recipent); return true; } bool CSmtp::AddBCCRecipient(const char *email, const char *name) { assert(email); if(!email) { m_oError = CSMTP_UNDEF_RECIPENT_MAIL; return false; } Recipent recipent; recipent.Mail.insert(0,email); name!=NULL ? recipent.Name.insert(0,name) : recipent.Name.insert(0,""); BCCRecipients.insert(BCCRecipients.end(), recipent); return true; } bool CSmtp::Send() { unsigned int i,rcpt_count,res,FileId; char *FileBuf = NULL, *FileName = NULL; FILE* hFile = NULL; unsigned long int FileSize,TotalSize,MsgPart; // ***** CONNECTING TO SMTP SERVER ***** assert(m_pcSMTPSrvName); // connecting to remote host: if( (hSocket = ConnectRemoteServer(m_pcSMTPSrvName, m_iSMTPSrvPort)) == INVALID_SOCKET ) { m_oError = CSMTP_WSA_INVALID_SOCKET; return false; } Sleep(DELAY_IN_MS); if(!ReceiveData()) return false; switch(SmtpXYZdigits()) { case 220: break; default: m_oError = CSMTP_SERVER_NOT_READY; return false; } // EHLO <SP> <domain> <CRLF> sprintf(SendBuf,"EHLO %s\r\n",GetLocalHostName()!=NULL ? m_pcLocalHostName : "domain"); if(!SendData()) return false; Sleep(DELAY_IN_MS); if(!ReceiveData()) return false; switch(SmtpXYZdigits()) { case 250: break; default: m_oError = CSMTP_COMMAND_EHLO; return false; } // AUTH <SP> LOGIN <CRLF> strcpy(SendBuf,"AUTH LOGIN\r\n"); if(!SendData()) return false; Sleep(DELAY_IN_MS); if(!ReceiveData()) return false; switch(SmtpXYZdigits()) { case 334: break; default: m_oError = CSMTP_COMMAND_AUTH_LOGIN; return false; } // send login: if(!m_pcLogin) { m_oError = CSMTP_UNDEF_LOGIN; return false; } std::string encoded_login = base64_encode(reinterpret_cast<const unsigned char*>(m_pcLogin),strlen(m_pcLogin)); sprintf(SendBuf,"%s\r\n",encoded_login.c_str()); if(!SendData()) return false; Sleep(DELAY_IN_MS); if(!ReceiveData()) return false; switch(SmtpXYZdigits()) { case 334: break; default: m_oError = CSMTP_UNDEF_XYZ_RESPOMSE; return false; } // send password: if(!m_pcPassword) { m_oError = CSMTP_UNDEF_PASSWORD; return false; } std::string encoded_password = base64_encode(reinterpret_cast<const unsigned char*>(m_pcPassword),strlen(m_pcPassword)); sprintf(SendBuf,"%s\r\n",encoded_password.c_str()); if(!SendData()) return false; Sleep(DELAY_IN_MS); if(!ReceiveData()) return false; switch(SmtpXYZdigits()) { case 235: break; case 535: m_oError = CSMTP_BAD_LOGIN_PASS; return false; default: m_oError = CSMTP_UNDEF_XYZ_RESPOMSE; return false; } // ***** SENDING E-MAIL ***** // MAIL <SP> FROM:<reverse-path> <CRLF> if(m_pcMailFrom == NULL) { m_oError = CSMTP_UNDEF_MAILFROM; return false; } sprintf(SendBuf,"MAIL FROM:<%s>\r\n",m_pcMailFrom); if(!SendData()) return false; Sleep(DELAY_IN_MS); if(!ReceiveData()) return false; switch(SmtpXYZdigits()) { case 250: break; default: m_oError = CSMTP_COMMAND_MAIL_FROM; return false; } // RCPT <SP> TO:<forward-path> <CRLF> rcpt_count = Recipients.size(); for(i=0;i<Recipients.size();i++) { sprintf(SendBuf,"RCPT TO:<%s>\r\n",(Recipients.at(i).Mail).c_str()); if(!SendData()) return false; Sleep(DELAY_IN_MS); if(!ReceiveData()) return false; switch(SmtpXYZdigits()) { case 250: break; default: m_oError = CSMTP_COMMAND_RCPT_TO; rcpt_count--; } } if(!rcpt_count) return false; for(i=0;i<CCRecipients.size();i++) { sprintf(SendBuf,"RCPT TO:<%s>\r\n",(CCRecipients.at(i).Mail).c_str()); if(!SendData()) return false; Sleep(DELAY_IN_MS); if(!ReceiveData()) return false; } for(i=0;i<BCCRecipients.size();i++) { sprintf(SendBuf,"RCPT TO:<%s>\r\n",(BCCRecipients.at(i).Mail).c_str()); if(!SendData()) return false; Sleep(DELAY_IN_MS); if(!ReceiveData()) return false; } // DATA <CRLF> strcpy(SendBuf,"DATA\r\n"); if(!SendData()) return false; Sleep(DELAY_IN_MS); if(!ReceiveData()) return false; switch(SmtpXYZdigits()) { case 354: break; default: m_oError = CSMTP_COMMAND_DATA; return false; } // send header(s) if(!FormatHeader(SendBuf)) { m_oError = CSMTP_UNDEF_MSG_HEADER; return false; } if(!SendData()) return false; // send text message sprintf(SendBuf,"%s\r\n",m_pcMsgBody); // NOTICE: each line e