发送邮件vc类 容易使用

////////////////////////////////////////////////////////////////////// // 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_bCon = false; m_oError = CSMTP_NO_ERROR; m_iXPriority = XPRIORITY_NORMAL; m_pcLocalHostName = NULL; m_pcRemoteHostName = 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; RecvBuf = new char[BUFFER_SIZE]; SendBuf = new char[BUFFER_SIZE]; // 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_pcRemoteHostName) delete[] m_pcRemoteHostName; 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; delete[] SendBuf; delete[] RecvBuf; // Close connection if (m_bCon) Disconnect(); // 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) 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) 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) 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::Disconnect() { if (!m_bCon) return false; // QUIT <CRLF> strcpy(SendBuf,"QUIT\r\n"); if(!SendData()) return false; Sleep(DELAY_IN_MS); if(!ReceiveData()) return false; switch(SmtpXYZdigits()) { case 221: break; default: m_oError = CSMTP_COMMAND_QUIT; m_bCon = false; hSocket = NULL; return false; } m_bCon = false; hSocket = NULL; 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; // 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 ends with <CRLF> if(!SendData()) return false; // next goes attachments (if they are) FileBuf = new char[55]; FileName = new char[255]; TotalSize = 0; for(FileId=0;FileId<Attachments.size();FileId++) { strcpy(FileName,Attachments[FileId].c_str()); sprintf(SendBuf,"--%s\r\n",BOUNDARY_TEXT); strcat(SendBuf,"Content-Type: application/x-msdownload; name=\""); strcat(SendBuf,&FileName[Attachments[FileId].find_last_of("\\") + 1]); strcat(SendBuf,"\"\r\n"); strcat(SendBuf,"Content-Transfer-Encoding: base64\r\n"); strcat(SendBuf,"Content-Disposition: attachment; filename=\""); strcat(SendBuf,&FileName[Attachments[FileId].find_last_of("\\") + 1]); strcat(SendBuf,"\"\r\n"); strcat(SendBuf,"\r\n"); if(!SendData()) return false; // opening the file: hFile = fopen(FileName,"rb"); if(hFile == NULL) { m_oError = CSMTP_FILE_NOT_EXIST; break; } // checking file size: FileSize = 0; while(!feof(hFile)) FileSize += fread(FileBuf,sizeof(char),54,hFile); TotalSize += FileSize; // sending the file: if(TotalSize/1024 > MSG_SIZE_IN_MB*1024) m_oError = CSMTP_MSG_TOO_BIG; else { fseek (hFile,0,SEEK_SET); MsgPart = 0; for(i=0;i<FileSize/54+1;i++) { res = fread(FileBuf,sizeof(char),54,hFile); MsgPart ? strcat(SendBuf,base64_encode(reinterpret_cast<const unsigned char*>(FileBuf),res).c_str()) : strcpy(SendBuf,base64_encode(reinterpret_cast<const unsigned char*>(FileBuf),res).c_str()); strcat(SendBuf,"\r\n"); MsgPart += res + 2; if(MsgPart >= BUFFER_SIZE/2) { // sending part of the message MsgPart = 0; if(!SendData()) { delete[] FileBuf; delete[] FileName; fclose(hFile); return false; } } } if(MsgPart) { if(!SendData()) { delete[] FileBuf; delete[] FileName; fclose(hFile);