C+첨부 파일 이 포 함 된 메 일 발송 기능 구현

11699 단어 C++메 일 발송
C++메 일 발송 프로그램 이 vs 2013 테스트 를 통 과 했 습 니 다.모두 3 개의 파일 이 있 습 니 다.메 일 을 보 내 는 프로그램 은 Csmtp 류 로 봉 인 됩 니 다.

1.테스트 용 주 함수

//
#include "Csmtp.h"
#pragma comment(lib, "Kernel32.lib") 

int main()
{ 

 Csmtp mail(
  25,
  "smtp.126.com",
  "[email protected]",//     
  "pwd",
  "[email protected]" //    
  );

 if (!mail.CReateSocket())
 {
  cout << "ReateSocket failed!" << endl;
  return -1;//
 }
 mail.setTitle("test mail");
 mail.setContent("this is content.");

 mail.addfile("test1.png"); //    
 mail.addfile("test2.png"); //    

 mail.SendMail(); //    

 return 0; 
} 
2.Csmtp 클래스 정의

#include <iostream> 
#include <string> 
#include <vector>
#include <fstream> 

#include <WinSock2.h> //     Windows

#pragma comment(lib, "ws2_32.lib") /*  ws2_32.lib     */ 
 // POP3   (  :110) Csmtp   (  :25) 
using namespace std;
class Csmtp 
{ 

 int port; 
 string domain; 
 string user; 
 string pass; 
 string target; 
 string title; //    
 string content; //    


 HOSTENT* pHostent;
 SOCKET sockClient; //       
 vector <string> filename; //        

public: 

 Csmtp( 
  int _port, //  25
  string _domain,  //  
  string _user,  //      
  string _pass,  //  
  string _target)  //    
 :port(_port),domain(_domain),user(_user),pass(_pass), target(_target){};//   
 bool CReateSocket();
 void setTitle(string tem){title = tem;}
 void setContent(string tem){content = tem;}

 int SendAttachment(SOCKET &sockClient);
 int SendMail();
 void addfile(string str){filename.push_back(str);}

}; 
3.Csmtp 류 의 실현

#include "Csmtp.h"
//#include <afx.h>//   
static const char base64Char[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; 
char* base64Encode(char const* origSigned, unsigned origLength) 
{ 
 unsigned char const* orig = (unsigned char const*)origSigned; // in case any input bytes have the MSB set 
 if (orig == NULL) return NULL; 

 unsigned const numOrig24BitValues = origLength / 3; 
 bool havePadding = origLength > numOrig24BitValues * 3; 
 bool havePadding2 = origLength == numOrig24BitValues * 3 + 2; 
 unsigned const numResultBytes = 4 * (numOrig24BitValues + havePadding); 
 char* result = new char[numResultBytes + 3]; // allow for trailing '/0' 

 // Map each full group of 3 input bytes into 4 output base-64 characters: 
 unsigned i; 
 for (i = 0; i < numOrig24BitValues; ++i) 
 { 
  result[4 * i + 0] = base64Char[(orig[3 * i] >> 2) & 0x3F]; 
  result[4 * i + 1] = base64Char[(((orig[3 * i] & 0x3) << 4) | (orig[3 * i + 1] >> 4)) & 0x3F]; 
  result[4 * i + 2] = base64Char[((orig[3 * i + 1] << 2) | (orig[3 * i + 2] >> 6)) & 0x3F]; 
  result[4 * i + 3] = base64Char[orig[3 * i + 2] & 0x3F]; 
 } 

 // Now, take padding into account. (Note: i == numOrig24BitValues) 
 if (havePadding) 
 { 
  result[4 * i + 0] = base64Char[(orig[3 * i] >> 2) & 0x3F]; 
  if (havePadding2) 
  { 
   result[4 * i + 1] = base64Char[(((orig[3 * i] & 0x3) << 4) | (orig[3 * i + 1] >> 4)) & 0x3F]; 
   result[4 * i + 2] = base64Char[(orig[3 * i + 1] << 2) & 0x3F]; 
  } 
  else 
  { 
   result[4 * i + 1] = base64Char[((orig[3 * i] & 0x3) << 4) & 0x3F]; 
   result[4 * i + 2] = '='; 
  } 
  result[4 * i + 3] = '='; 
 } 

 result[numResultBytes] = '\0'; 
 return result; 
} 


int Csmtp::SendAttachment(SOCKET &sockClient) /*    */ 
{ 
 for (std::vector<string>::iterator iter = filename.begin();iter != filename.end(); iter++) 
 { 
  cout << "Attachment is sending・・・ " << endl; 

  string path=*iter;
  ifstream ifs(path, ios::in | ios::binary); //'   2   ,   、     '
  if (false == ifs.is_open()) 
  { 
   cout<<"      !"<<endl;
   return 1; 
  } 

  string sendstring; 
  sendstring = "--@boundary@\r
Content-Type: application/octet-stream; name=\"1.jpg\"\r
"; sendstring += "Content-Disposition: attachment; filename=\"1.jpg\"\r
"; sendstring += "Content-Transfer-Encoding: base64\r
\r
"; send(sockClient, sendstring.c_str(), sendstring.length(), 0); //infile.read((char*)buffer,sizeof( )); // get length of file: ifs.seekg (0, ifs.end); int length = ifs.tellg(); ifs.seekg (0, ifs.beg); cout<<"length:"<<length<<endl; // allocate memory: char * buffer = new char [length]; // read data as a block: ifs.read (buffer,length); ifs.close(); char *pbase; pbase = base64Encode(buffer, length); delete[]buffer; string str(pbase); delete[]pbase; str+="\r
"; int err =send(sockClient, str.c_str(), strlen(str.c_str()), 0); if (err != strlen(str.c_str())) { cout << " !" << endl; return 1; } } return 0; } bool Csmtp::CReateSocket() { WSADATA wsaData; WORD wVersionRequested = MAKEWORD(2, 1); //WSAStarup, WSA(Windows SocKNDs Asynchronous,Windows ) int err = WSAStartup(wVersionRequested, &wsaData); cout<<"WSAStartup(0:successful):"<<err<<endl; char namebuf[128]; // string ip_list; if(0==gethostname(namebuf,128)) { struct hostent* pHost; // IP pHost=gethostbyname(namebuf); //pHost for (int i=0;pHost!=NULL&&pHost->h_addr_list[i]!=NULL;i++) { string tem = inet_ntoa(*(struct in_addr *)pHost->h_addr_list[i]); ip_list += tem; ip_list += "
"; } } else { cout<<" ..."<<endl ; } ////////////////////////////////////////////////////////////////////////// title=namebuf;// content=ip_list; // ip sockClient = socket(AF_INET, SOCK_STREAM, 0); // socket pHostent = gethostbyname(domain.c_str()); // if (pHostent == NULL) { printf( " , !
" ); return false; } return true; } int Csmtp::SendMail() { char *ecode; char buff[500]; //recv int err = 0; string message; // SOCKADDR_IN addrServer; // addrServer.sin_addr.S_un.S_addr = *((DWORD *)pHostent->h_addr_list[0]); // smtp ip addrServer.sin_family = AF_INET; addrServer.sin_port = htons(port); // 25 //int connect (SOCKET s , const struct sockaddr FAR *name , int namelen ); err = connect(sockClient, (SOCKADDR*)&addrServer, sizeof(SOCKADDR)); // cout<<"connect:"<<err<<endl; //telnet smtp.126.com 25 buff[recv(sockClient, buff, 500, 0)]='\0'; //cout<<"connect:"<<buff<<endl; message="ehlo 126.com\r
"; send(sockClient, message.c_str(), message.length(), 0); buff[recv(sockClient, buff, 500, 0)]='\0'; //cout<<"helo:"<<buff<<endl; message="auth login \r
"; send(sockClient, message.c_str(), message.length(), 0); buff[recv(sockClient, buff, 500, 0)]='\0'; //cout<<"auth login:"<<buff<<endl; // message=user; ecode = base64Encode(message.c_str(), strlen(message.c_str())); message = ecode; message += "\r
"; delete[]ecode; send(sockClient, message.c_str(), message.length(), 0); buff[recv(sockClient, buff, 500, 0)]='\0'; //cout<<"usrname:"<<buff<<endl; // message=pass; ecode = base64Encode(message.c_str(), strlen(message.c_str())); message = ecode; delete[]ecode; message += "\r
"; send(sockClient, message.c_str(), message.length(), 0); buff[recv(sockClient, buff, 500, 0)]='\0'; //cout<<"password:"<<buff<<endl; message="mail from:<"+user+">\r
rcpt to:<"+target+">\r
"; send(sockClient, message.c_str(), message.length(), 0); buff[recv(sockClient, buff, 500, 0)]='\0'; //cout<<"mail from: "<<buff<<endl; buff[recv(sockClient, buff, 500, 0)]='\0'; //cout<<"rcpt to: "<<buff<<endl; message="data\r
";//data send(sockClient, message.c_str(), message.length(), 0); buff[recv(sockClient, buff, 500, 0)]='\0'; //cout<<"data: "<<buff<<endl; ///-----------------------------------------DATA------------------------------------- // Csmtp , Csmtp , Content-type BOUNDARY , cout<<"-------------------DATA------------------------"<<endl; // message="from:"+user+"\r
to:"+target+"\r
subject:"+title+"\r
"; message += "MIME-Version: 1.0\r
"; message += "Content-Type: multipart/mixed;boundary=@boundary@\r
\r
"; send(sockClient, message.c_str(), message.length(), 0); // message = "--@boundary@\r
Content-Type: text/plain;charset=\"gb2312\"\r
\r
"+content+"\r
\r
"; send(sockClient, message.c_str(), message.length(), 0); //------------------------------------------------------------------------------------------------ // SendAttachment(sockClient); /* */ message = "--@boundary@--\r
.\r
"; send(sockClient, message.c_str(), message.length(), 0); buff[recv(sockClient, buff, 500, 0)]='\0'; //cout<<"end_qwertyuiop:"<<buff<<endl; message="QUIT\r
"; send(sockClient, message.c_str(), message.length(), 0); buff[recv(sockClient, buff, 500, 0)]='\0'; cout<<"Send mail is finish:"<<buff<<endl; return 0; }
이해 하기 쉬 운 간략화 판 클릭 가능->여기,이곳
이상 이 바로 본 고의 모든 내용 입 니 다.여러분 의 학습 에 도움 이 되 고 저 희 를 많이 응원 해 주 셨 으 면 좋 겠 습 니 다.

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