由于工作需要,查阅了相关资料,利用VC2005实现了邮件发送,源程序如下:
//-------------------------------------------------------SmtpSendEmail.h------------------------------------
#pragma once
#include <list>
#include <string>
#include <fstream>
#include<WinSock2.h>
#pragma comment(lib, "ws2_32.lib")
using namespace std;
#ifndef _SMTPSENDEMAIL_H
#define _SMTPSENDEMAIL_H
//发送线程
DWORD WINAPI SendMailThread(LPVOID lpParam);
class SmtpSendEmail
{
public:
SmtpSendEmail(void);
virtual ~SmtpSendEmail(void);
public:
void SetPost( int nPost );
void SetHost( string strHost );
void SetAccount( string strAccount );
void SetPassword( string strPassword );
void SetMailFrom( string strMailFrom );
void SetSendTo( string strSendTo );
void SetSubject( string strSubject );
void SetDateTime( string strDateTime );
bool AddDataFromString( string strData );
bool AddDataFromBuffer( char* szData, int iLen );
bool AddDataFromFile( string strFileName );
bool AddAttachedFile( string strFilePath, string strFileName );
bool SandThread();
bool StarMailThread();
private:
int Base64EncodeLen( int nSrcLen );
bool Base64Encode( const BYTE* szSrcData, int nSrcLen, BYTE* szDestData, int* pnDestLen );
bool CheckResponse(int nResCode);
bool ConnectServ();
bool SendHelo();
bool SendEhlo();
bool AutoLogin();
bool EmailFrom();
bool EmailTo();
bool DataServ();
bool SendData();
bool SendAttachedFile();
bool QuitServ();
private:
static const char m_szBase64CodeTable[];
static const string MIMEMultipartMixedLogin;
static const string MIMETextPlainLogin;
static const string MyBoundary;
static const string CTCodeQP;
static const string CTCodeBase64;
static const string CTTextPlainCharCodeGB2312;
static const string CTAppOctetStreamName;
static const string CDAttachemntFileName;
struct SMTPSTRU
{
int nPost;
string strHost;
string strAccount;
string strPassword;
string strMailFrom;
string strSendTo;
string strSubject;
string strDateTime;
string strData;
};
struct FILEINFOSTRU
{
string strPath;
string strFile;
};
SOCKET m_hSocket;
SMTPSTRU m_smtpPro;
list<FILEINFOSTRU> m_listFileInfo;
};
#endif
//------------------------------------------------SmtpSendEmail.cpp------------------------------------------------------
#include "StdAfx.h"
#include "SmtpSendEmail.h"
//发送线程
DWORD WINAPI SendMailThread(LPVOID lpParam)
{
((SmtpSendEmail*)lpParam)->SandThread();
return 0;
}
const char SmtpSendEmail::m_szBase64CodeTable[] = { "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" };
const string SmtpSendEmail::MIMEMultipartMixedLogin = "X-Mailer: Gddsky mailer/r/n MIME-Version: 1.0/r/nContent-type: multipart/mixed;boundary=/"===_000_Gddsky_000_===/"/r/n/r/n";
const string SmtpSendEmail::MIMETextPlainLogin = "X-Mailer: Gddsky mailer/r/nMIME-Version: 1.0/r/nContent-type: text/plain;charset=/"GB2312/"/r/n Content-Transfer-Encoding: base64/r/n/r/n";
const string SmtpSendEmail::MyBoundary = "/r/n--===_000_Gddsky_000_===/r/n";
const string SmtpSendEmail::CTCodeQP = "Content-Transfer-Encoding: quoted-printable/r/n/r/n";
const string SmtpSendEmail::CTCodeBase64 = "Content-Transfer-Encoding: base64/r/n/r/n";
const string SmtpSendEmail::CTTextPlainCharCodeGB2312 = "Content-Type: text/plain;charset=/"GB2312/"/r/n";
const string SmtpSendEmail::CTAppOctetStreamName = "Content-Type: application/octet-stream;name=";
const string SmtpSendEmail::CDAttachemntFileName = "Content-Disposition: attachment;filename=";
SmtpSendEmail::SmtpSendEmail(void)
{
WSADATA wsaData = {0};
WORD wVersionRequested = MAKEWORD( 2, 2 );
WSAStartup( wVersionRequested, &wsaData );
m_smtpPro.nPost = 25;
m_hSocket = 0;
}
SmtpSendEmail::~SmtpSendEmail(void)
{
m_listFileInfo.clear();
//关闭SOCK
closesocket(m_hSocket);
m_hSocket = 0;
WSACleanup();
}
int SmtpSendEmail::Base64EncodeLen( int nSrcLen )
{
int nRet = nSrcLen * 4 / 3 + nSrcLen % 3;
int nCRLFs = ( nRet / 76 + 1 ) * 2;
int nOnLastLine = nRet % 76;
nRet += nCRLFs;
if( nOnLastLine && nOnLastLine % 4 )
{
nRet += 4 - ( nOnLastLine % 4 );
}
return nRet;
}
bool SmtpSendEmail::Base64Encode( const BYTE* szSrcData, int nSrcLen, BYTE* szDestData, int* pnDestLen )
{
if( !( szSrcData && nSrcLen && szDestData && pnDestLen && *pnDestLen ) )
{
return false;
}
if( *pnDestLen < Base64EncodeLen( nSrcLen ) )
{
return false;
}
int nWritten = 0 ;
int nLen1 = ( nSrcLen / 3 ) * 4;
int nLen2 = nLen1 / 76;
int nLen3 = 19;
for( int i = 0; i <= nLen2; i++ )
{
if( i == nLen2 )
{
nLen3 = ( nLen1 % 76 ) / 4;
}
for( int j = 0; j < nLen3; j++ )
{
DWORD dwCurr = 0;
for( int n = 0; n < 3; n++ )
{
dwCurr |= *szSrcData++;
dwCurr <<= 8;
}
for( int k = 0; k < 4; k++ )
{
BYTE b = ( BYTE )( dwCurr >> 26 );
*szDestData++ = m_szBase64CodeTable[ b ];
dwCurr <<= 6;
}
}
nWritten += nLen3 * 4;
*szDestData++ = '/r';
*szDestData++ = '/n';
nWritten+= 2;
}
if( nWritten )
{
szDestData-= 2;
nWritten -= 2;
}
nLen2 = ( nSrcLen % 3 ) ? ( nSrcLen % 3 ) + 1 : 0;
if( nLen2 )
{
DWORD dwCurr = 0;
for( int n = 0; n < 3; n++ )
{
if( n < ( nSrcLen % 3 ) )
{
dwCurr |= *szSrcData++;
}
dwCurr <<= 8;
}
for( int k = 0; k < nLen2; k++ )
{
BYTE b = ( BYTE ) ( dwCurr >> 26 );
*szDestData++ = m_szBase64CodeTable[ b ];
dwCurr <<= 6;
}
nWritten += nLen2;
nLen3 = nLen2 ? 4 - nLen2 : 0;
for( int j = 0; j < nLen3; j++ )
{
*szDestData++ = '=';
}
nWritten += nLen3;
}
*pnDestLen = nWritten;
return true;
}
void SmtpSendEmail::SetPost( int nPost )
{
m_smtpPro.nPost = nPost;
}
void SmtpSendEmail::SetHost( string strHost )
{
m_smtpPro.strHost = strHost;
}
void SmtpSendEmail::SetAccount( string strAccount )
{
m_smtpPro.strAccount = strAccount;
}
void SmtpSendEmail::SetPassword( string strPassword )
{
m_smtpPro.strPassword = strPassword;
}
void SmtpSendEmail::SetMailFrom( string strMailFrom )
{
m_smtpPro.strMailFrom = strMailFrom;
}
void SmtpSendEmail::SetSendTo( string strSendTo )
{
m_smtpPro.strSendTo = strSendTo;
}
void SmtpSendEmail::SetSubject( string strSubject )
{
m_smtpPro.strSubject = strSubject;
}
void SmtpSendEmail::SetDateTime( string strDateTime )
{
m_smtpPro.strDateTime = strDateTime;
}
bool SmtpSendEmail::AddDataFromString( std::string strData )
{
m_smtpPro.strData.append( strData.c_str() );
return true;
}
bool SmtpSendEmail::AddDataFromBuffer( char* szData, int iLen )
{
if( NULL != szData && iLen > 0)
{
m_smtpPro.strData.append( szData, iLen );
return true;
}
return false;
}
bool SmtpSendEmail::AddDataFromFile( string strFileName )
{
ifstream InputFile;
InputFile.open( strFileName.c_str(), ios_base::binary | ios_base::in );
if( InputFile.fail() )
{
return false;
}
InputFile.seekg( 0, ios_base::end );
int iLen = InputFile.tellg();
InputFile.seekg( 0, ios_base::beg );
char* pszFileData = new char[iLen + 1];
memset(pszFileData, 0, iLen + 1);
InputFile.read( pszFileData, iLen );
m_smtpPro.strData.append( pszFileData );
delete pszFileData;
return true;
}
bool SmtpSendEmail::AddAttachedFile(string strFilePath, string strFileName)
{
FILEINFOSTRU fileInfo;
fileInfo.strPath = strFilePath;
fileInfo.strFile = strFileName;
m_listFileInfo.push_back(fileInfo);
return true;
}
bool SmtpSendEmail::StarMailThread()
{
DWORD threadID;
HANDLE threadHandle = CreateThread(0, 0, SendMailThread, this, 0, &threadID);
return true;
}
// 发送邮件
bool SmtpSendEmail::SandThread()
{
//创建SOCK,连接服务器
if (!ConnectServ())
{
return false;
}
//HELO CMD
if(!SendHelo())
{
return false;
}
//EHLO CMD
if (SendEhlo())
{
if (!AutoLogin())
{
return false;
}
}
//MAIL FORM CMD
if (!EmailFrom())
{
return false;
}
//RCPT TO CMD
if (!EmailTo())
{
return false;
}
//DATA CMD
if (!DataServ())
{
return false;
}
// 邮件内容
if (m_listFileInfo.size() > 0)
{
if (!SendAttachedFile())
{
return false;
}
}
else
{
if (!SendData())
{
return false;
}
}
// 发送结束
if (!QuitServ())
{
return false;
}
//关闭SOCK
closesocket(m_hSocket);
m_hSocket = 0;
return true;
}
bool SmtpSendEmail::ConnectServ()
{
//创建SOCK
m_hSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
//超时
struct timeval timeoutRecv = {0};
timeoutRecv.tv_sec = 30000;
setsockopt(m_hSocket, SOL_SOCKET, SO_RCVTIMEO, (const char *)&timeoutRecv, sizeof(timeoutRecv));
//连接
LPHOSTENT pHost = gethostbyname(m_smtpPro.strHost.c_str());
struct sockaddr_in servAddr;
servAddr.sin_family = AF_INET;
servAddr.sin_addr.s_addr = *(ULONG *)pHost->h_addr_list[0];
servAddr.sin_port = htons(25);
if (connect(m_hSocket, (const struct sockaddr *)&servAddr, sizeof(struct sockaddr_in)) == SOCKET_ERROR)
{
closesocket(m_hSocket);
m_hSocket = 0;
return false;
}
return CheckResponse(220);
}
bool SmtpSendEmail::CheckResponse(int nResCode)
{
char szRecvBuf[1024] = {0};
char szTemp[20] = {0};
_itoa_s(nResCode, szTemp, 20, 10);
//接收回复
int nRecvLen = recv(m_hSocket, szRecvBuf, 1024, 0);
if (nRecvLen <= 0)
{
closesocket(m_hSocket);
m_hSocket = 0;
return false;
}
if (nRecvLen >= (int)strlen(szTemp))
{
if (strstr(szRecvBuf, szTemp) != NULL)
{
return true;
}
}
return false;
}
bool SmtpSendEmail::SendHelo()
{
string strSendBuf;
strSendBuf.append( "HELO " );
strSendBuf.append(m_smtpPro.strHost.c_str());
strSendBuf.append("/r/n");
//发送
int nSendLen = send(m_hSocket, strSendBuf.c_str(), (int)strSendBuf.size(), 0);
if (nSendLen != (int)strSendBuf.size())
{
closesocket(m_hSocket);
m_hSocket = 0;
return false;
}
//回复
return CheckResponse(250);
}
bool SmtpSendEmail::SendEhlo()
{
string strSendBuf;
strSendBuf.append( "EHLO 126.com /r/n" );
//strSendBuf.append(m_smtpPro.Host.c_str());
//strSendBuf.append("/r/n");
//发送
int nSendLen = send(m_hSocket, strSendBuf.c_str(), (int)strSendBuf.size(), 0);
if (nSendLen != (int)strSendBuf.size())
{
closesocket(m_hSocket);
m_hSocket = 0;
return false;
}
//回复
return CheckResponse(250);
}
bool SmtpSendEmail::AutoLogin()
{
int nTemp = 1024;
char szBaseBuf[1024] = {0};
string strSendBuf;
strSendBuf.append( "AUTH LOGIN/r/n" );
//发送
int nSendLen = send(m_hSocket, strSendBuf.c_str(), (int)strSendBuf.size(), 0);
if (nSendLen != (int)strSendBuf.size())
{
closesocket(m_hSocket);
m_hSocket = 0;
return false;
}
//回复
if (!CheckResponse(334))
{
return false;
}
//帐户
strSendBuf.clear();
Base64Encode( (const BYTE*)m_smtpPro.strAccount.c_str(), (int)m_smtpPro.strAccount.size(), (BYTE*)szBaseBuf, &nTemp );
strSendBuf.append( szBaseBuf );
//发送
nSendLen = send(m_hSocket, strSendBuf.c_str(), (int)strSendBuf.size(), 0);
if (nSendLen != (int)strSendBuf.size())
{
closesocket(m_hSocket);
m_hSocket = 0;
return false;
}
//回复
if (!CheckResponse(334))
{
return false;
}
//密码
strSendBuf.clear();
nTemp = 1024;
memset(szBaseBuf, 0, 1024 );
Base64Encode( (const BYTE*)m_smtpPro.strPassword.c_str(), (int)m_smtpPro.strPassword.size(), (BYTE*)szBaseBuf, &nTemp );
strSendBuf.append( szBaseBuf );
//发送
nSendLen = send(m_hSocket, strSendBuf.c_str(), (int)strSendBuf.size(), 0);
if (nSendLen != (int)strSendBuf.size())
{
closesocket(m_hSocket);
m_hSocket = 0;
return false;
}
//回复
return CheckResponse(235);
}
bool SmtpSendEmail::EmailFrom()
{
string strSendBuf;
strSendBuf.append( "MAIL FROM: <" );
strSendBuf.append( m_smtpPro.strMailFrom.c_str() );
strSendBuf.append( ">/r/n" );
//发送
int nSendLen = send(m_hSocket, strSendBuf.c_str(), (int)strSendBuf.size(), 0);
if (nSendLen != (int)strSendBuf.size())
{
closesocket(m_hSocket);
m_hSocket = 0;
return false;
}
//回复
return CheckResponse(250);
}
bool SmtpSendEmail::EmailTo()
{
string strSendBuf;
strSendBuf.append( "RCPT TO: <" );
strSendBuf.append( m_smtpPro.strSendTo.c_str() );
strSendBuf.append( ">/r/n" );
//发送
int nSendLen = send(m_hSocket, strSendBuf.c_str(), (int)strSendBuf.size(), 0);
if (nSendLen != (int)strSendBuf.size())
{
closesocket(m_hSocket);
m_hSocket = 0;
return false;
}
//回复
return CheckResponse(250);
}
bool SmtpSendEmail::DataServ()
{
string strSendBuf;
strSendBuf.append( "DATA/r/n" );
//发送
int nSendLen = send(m_hSocket, strSendBuf.c_str(), (int)strSendBuf.size(), 0);
if (nSendLen != (int)strSendBuf.size())
{
closesocket(m_hSocket);
m_hSocket = 0;
return false;
}
//回复
return CheckResponse(354);
}
bool SmtpSendEmail::SendData()
{
string strSendBuf;
strSendBuf.append( "From: <" );
strSendBuf.append( m_smtpPro.strMailFrom.c_str() );
strSendBuf.append( ">/r/n" );
strSendBuf.append( "To: <" );
strSendBuf.append( m_smtpPro.strSendTo.c_str() );
strSendBuf.append( ">/r/n" );
strSendBuf.append( "Date: " );
strSendBuf.append( m_smtpPro.strDateTime.c_str() );
strSendBuf.append( "/r/n" );
strSendBuf.append( "Subject: " );
strSendBuf.append( m_smtpPro.strSubject.c_str() );
strSendBuf.append( "/r/n" );
strSendBuf.append( MIMETextPlainLogin.c_str() );
//内容
strSendBuf.append(m_smtpPro.strData.c_str());
//结束符
strSendBuf.append("/r/n./r/n");
//发送
int nSendLen = send(m_hSocket, strSendBuf.c_str(), (int)strSendBuf.size(), 0);
if (nSendLen != (int)strSendBuf.size())
{
closesocket(m_hSocket);
m_hSocket = 0;
return false;
}
//回复
return CheckResponse(250);
}
bool SmtpSendEmail::SendAttachedFile()
{
string strSendBuf;
strSendBuf.append( "From: <" );
strSendBuf.append( m_smtpPro.strMailFrom.c_str() );
strSendBuf.append( ">/r/n" );
strSendBuf.append( "To: <" );
strSendBuf.append( m_smtpPro.strSendTo.c_str() );
strSendBuf.append( ">/r/n" );
strSendBuf.append( "Date: " );
strSendBuf.append( m_smtpPro.strDateTime.c_str() );
strSendBuf.append( "/r/n" );
strSendBuf.append( "Subject: " );
strSendBuf.append( m_smtpPro.strSubject.c_str() );
strSendBuf.append( "/r/n" );
strSendBuf.append( MIMEMultipartMixedLogin.c_str() );
strSendBuf.append( MyBoundary.c_str() );
strSendBuf.append( CTTextPlainCharCodeGB2312.c_str() );
strSendBuf.append( CTCodeBase64.c_str() );
//内容加密
int nSize = Base64EncodeLen( (int)m_smtpPro.strData.size() );
BYTE *pszDataBuf = new BYTE[nSize+1];
memset(pszDataBuf, 0, nSize+1);
Base64Encode( (const BYTE*)m_smtpPro.strData.c_str(), (int)m_smtpPro.strData.size(), (BYTE*)pszDataBuf, &nSize );
strSendBuf.append((char*)pszDataBuf);
delete pszDataBuf;
//发送
int nSendLen = send(m_hSocket, strSendBuf.c_str(), (int)strSendBuf.size(), 0);
if (nSendLen != (int)strSendBuf.size())
{
closesocket(m_hSocket);
m_hSocket = 0;
return false;
}
//附件
for( list<FILEINFOSTRU>::iterator it = m_listFileInfo.begin(); it != m_listFileInfo.end(); it++ )
{
string strFile = ( *it ).strPath + ( *it ).strFile;
string strFileData;
// 读文件
ifstream InputFile;
InputFile.open( strFile.c_str(), ios_base::binary | ios_base::in );
if( InputFile.fail() )
{
continue;
}
InputFile.seekg( 0, ios_base::end );
int iLen = InputFile.tellg();
InputFile.seekg( 0, ios_base::beg );
strFileData.resize( iLen );
InputFile.read( (char*)strFileData.c_str(), iLen );
// 加入一个附件头
strSendBuf.clear();
strSendBuf.append( MyBoundary.c_str() );
strSendBuf.append( CTAppOctetStreamName.c_str() );
strSendBuf.append( ( *it ).strFile.c_str() );
strSendBuf.append( "/r/n" );
strSendBuf.append( CDAttachemntFileName.c_str() );
strSendBuf.append( ( *it ).strFile.c_str() );
strSendBuf.append( "/r/n" );
strSendBuf.append( CTCodeBase64.c_str() );
//内容加密
nSize = Base64EncodeLen( (int)strFileData.size() );
pszDataBuf = new BYTE[nSize+1];
memset(pszDataBuf, 0, nSize+1);
Base64Encode( (const BYTE*)strFileData.c_str(), (int)strFileData.size(), (BYTE*)pszDataBuf, &nSize );
strSendBuf.append((char*)pszDataBuf);
delete pszDataBuf;
//发送
nSendLen = send(m_hSocket, strSendBuf.c_str(), (int)strSendBuf.size(), 0);
if (nSendLen != (int)strSendBuf.size())
{
closesocket(m_hSocket);
m_hSocket = 0;
return false;
}
}
//结束符
strSendBuf.clear();
strSendBuf.append("/r/n./r/n");
//发送
nSendLen = send(m_hSocket, strSendBuf.c_str(), (int)strSendBuf.size(), 0);
if (nSendLen != (int)strSendBuf.size())
{
closesocket(m_hSocket);
m_hSocket = 0;
return false;
}
//回复
return CheckResponse(250);
}
bool SmtpSendEmail::QuitServ()
{
string strSendBuf = "QUIT/r/n";
int nSendLen = send(m_hSocket, strSendBuf.c_str(), (int)strSendBuf.size(), 0);
if (nSendLen != (int)strSendBuf.size())
{
closesocket(m_hSocket);
m_hSocket = 0;
return false;
}
//回复
return CheckResponse(221);
}
测试代码:
m_smtp.SetHost("smtp.126.com");
m_smtp.SetPost(25);
m_smtp.SetAccount("yefeng654321");
m_smtp.SetPassword("密码");
m_smtp.SetMailFrom("[email protected]");
m_smtp.SetSendTo("[email protected]");
m_smtp.SetSubject("测试");
m_smtp.SetDateTime("2008-12-29");
m_smtp.AddDataFromBuffer("123456789", 9);
m_smtp.AddAttachedFile("c://","1.txt");
m_smtp.StarMailThread();
发上源程序在VC2005下调试通过,希望对朋友们有用!