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#ifndef SENDMAIL_H_INCLUDED
#define SENDMAIL_H_INCLUDED
#include <iostream>
#include <fstream>
#include <cstdlib>
#include <cstdio>
#include <string>
#include <windows.h>
#include <winbase.h>
#include <winsock2.h>
#include <ws2tcpip.h>
#include <winreg.h>
bool SendMail(std::string FromAddr, std::string Subject, std::string File)
{
int iProtocolPort = 0;
char SMTPServerName[] = "mail.server.com";///Mail Server Name
char ToAddr[] = "user.name@server.com";///Mail To Address
char Buffer[4096];
char Line[255];
char MsgLine[255];
SOCKET Server;
WSADATA wsaData;
LPHOSTENT lpHostEntry;
LPSERVENT lpServEntry;
SOCKADDR_IN SockAddr;
std::ifstream MsgFile(File.c_str());
if(WSAStartup(MAKEWORD(1, 1), &wsaData))
{
std::cout << "FAILED TO START WSA\n";
return false;
}
lpHostEntry = gethostbyname(SMTPServerName);
if(!lpHostEntry)
{
std::cout << "Could Not Reach Host: " << SMTPServerName << " " << WSAGetLastError() << std::endl;
return false;
}
Server = socket(PF_INET, SOCK_STREAM, 0);
if(!Server == INVALID_SOCKET)
{
std::cout << "Cannot Open Mail Server Socket: " << WSAGetLastError();
return false;
}
lpServEntry = getservbyname("mail", 0);
if(!lpServEntry)
{
iProtocolPort = htons(IPPORT_SMTP);
}
else
{
iProtocolPort = lpServEntry->s_port;
}
SockAddr.sin_family = AF_INET;
SockAddr.sin_port = iProtocolPort;
SockAddr.sin_addr = *((LPIN_ADDR)*lpHostEntry->h_addr_list);
if(connect(Server, (PSOCKADDR) &SockAddr, sizeof(SockAddr)))
{
std::cout << "Error Connecting To Server Socket: " << WSAGetLastError();
return false;
}
try
{
recv(Server, Buffer, sizeof(Buffer), 0);///Response From Server Should Be 220 'OK'
if(Buffer[0] != '2')
{
sprintf(MsgLine, "SERVER NOT READY:%s", Buffer);
throw Buffer;
}
sprintf(MsgLine, "HELO %s%s", SMTPServerName, CRLF);
send(Server, MsgLine, strlen(MsgLine), 0);
recv(Server, Buffer, sizeof(Buffer), 0);
if(Buffer[0] != '2')
{
sprintf(MsgLine, "%s:%s", MsgLine, Buffer);
throw MsgLine;
}
sprintf(MsgLine, "MAIL FROM: %s%s", FromAddr.c_str(), CRLF);
send(Server, MsgLine, strlen(MsgLine), 0);
recv(Server, Buffer, sizeof(Buffer), 0);
if(Buffer[0] != '2')
{
sprintf(MsgLine, "%s:%s", MsgLine, Buffer);
throw MsgLine;
}
sprintf(MsgLine, "RCPT TO: %s%s", ToAddr, CRLF);
send(Server, MsgLine, strlen(MsgLine), 0);
recv(Server, Buffer, sizeof(Buffer), 0);
if(Buffer[0] != '2')
{
sprintf(MsgLine, "%s:%s", MsgLine, Buffer);
throw MsgLine;
}
sprintf(MsgLine, "VRFY %s%s", ToAddr, CRLF);
send(Server, MsgLine, strlen(MsgLine), 0);
recv(Server, Buffer, sizeof(Buffer), 0);
if(Buffer[0] != '2')
{
sprintf(MsgLine, "%s:%s", MsgLine, Buffer);
throw MsgLine;
}
sprintf(MsgLine, "DATA%s", CRLF);
send(Server, MsgLine, strlen(MsgLine), 0);
recv(Server, Buffer, sizeof(Buffer), 0);///Mail Server Responds With Code: 354 Telling The Client To End 'DATA' Section With A '.'
sprintf(MsgLine, "Subject: %s%s", Subject.c_str(), CRLF);
send(Server, MsgLine, strlen(MsgLine), 0); ///The Mail Server Does Not Respond After DATA Is Sent Until It Sees '.' So No 'recv()'
MsgFile.getline(Line, sizeof(Line));
do
{
sprintf(MsgLine, "%s%s", Line, CRLF);
send(Server, MsgLine, strlen(MsgLine), 0);
MsgFile.getline(Line, sizeof(Line));
}while(MsgFile.good());
sprintf(MsgLine, "%s.%s", CRLF, CRLF);
send(Server, MsgLine, strlen(MsgLine), 0);
recv(Server, Buffer, sizeof(Buffer), 0);
if(Buffer[0] != '2')
{
throw Buffer;
}
sprintf(MsgLine, "QUIT%s", CRLF);
send(Server, MsgLine, strlen(MsgLine), 0);
recv(Server, Buffer, sizeof(Buffer), 0);
if(Buffer[0] != '2')
{
sprintf(MsgLine, "%s:%s", MsgLine, Buffer);
throw MsgLine;
}
std::cout << "Message Sent\n";
}
catch(char* Error)
{
std::cout << "\nEXCEPTION CAUGHT!\n";
std::cout << "Server Reply: " << Error << std::endl;
sprintf(MsgLine, "RSET%s", CRLF);
send(Server, MsgLine, strlen(MsgLine), 0);
recv(Server, Buffer, sizeof(Buffer), 0);
sprintf(MsgLine, "QUIT%s", CRLF);
send(Server, MsgLine, strlen(MsgLine), 0);
}
shutdown(Server, SD_BOTH);
closesocket(Server);
WSACleanup();
return true;
}
#endif // SENDMAIL_H_INCLUDED
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