/************************************************************************
* 发送邮件模块
*可以发送文本和附件(支持多个附件一起发送)
*Date:2011-12-01
************************************************************************/
#include "StdAfx.h"
#include "fstream"
using namespace std;
#include "SendMail.h"
CSendMail::CSendMail(void)
{
file_buffer_ = NULL;
memset(send_buff_, 0, sizeof(send_buff_));
memset(receive_buff_, 0, sizeof(receive_buff_));
}
CSendMail::~CSendMail(void)
{
DeleteAllPath();
}
void CSendMail::Char2Base64(char* buff_64, char* src_buff, int length)
{
//1 1 1 1 1 1 1 1
// 分配给pBuff64 ↑ 分配给pBuff64+1
// point所在的位置
static char base_64_encode[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";//base64所映射的字符表
int point; // 每一个源字符拆分的位置,可取2,4,6;初始为2
point = 2;
int base_index; // base64字符的索引
char n = 0; // 上一个源字符的残留值
for(int index = 0; index < length; index++)
{
if(point == 2)
{
base_index = ((*src_buff) >> point) & 0x3f; // 取得pSrcBuff的高point位
}
else if (point == 4)
{
base_index = ((*src_buff) >> point) & 0xf; // 取得pSrcBuff的高point位
}
else if(point == 6)
{
base_index = ((*src_buff) >> point) & 0x3; // 取得pSrcBuff的高point位
}
base_index += n; // 与pSrcBuff-1的低point结合组成Base64的索引
*buff_64++ = base_64_encode[base_index]; // 由索引表得到pBuff64
n = ((*src_buff) << (6 - point)); // 计算源字符中的残留值
n = n & 0x3f; //确保n的最高两位为0
point += 2; //源字符的拆分位置上升2
if(point == 8) //如果拆分位置为8说明pSrcBuff有6位残留,可以组成一个完整的Base64字符,所以直接再组合一次
{
base_index = (*src_buff) & 0x3f; //提取低6位,这就是索引了
*buff_64++ =base_64_encode[base_index];
n = 0; // 残留值为0
point = 2; // 拆分位置设为2
}
src_buff++;
}
if(n != 0)
{
*buff_64++ = base_64_encode[n];
}
if(length % 3 == 2) // 如果源字符串长度不是3的倍数要用'='补全
{
*buff_64 = '=';
}
else if(length % 3 == 1)
{
*buff_64++ = '=';
*buff_64 = '=';
}
}
void CSendMail::AddFilePath(char * file_path) // 添加附件路径
{
if(file_path == NULL)
{
return;
}
int i;
char *temp;
for (int index = 0; index < file_path_list_.size(); index++)
{
temp = file_path_list_[index];
if(strcmp(file_path,temp) == 0) // 如果已经存在就不用再添加了
{
return;
}
}
file_path_list_.push_back(file_path);
}
void CSendMail::DeleteFilePath(char* file_path) // 删除附件路径
{
int i;
char* temp;
for (int index = 0; index < file_path_list_.size(); index++)
{
temp = file_path_list_[index];
if (strcmp(file_path, temp) == 0)
{
file_path_list_.erase(file_path_list_.begin() + index);
}
}
}
void CSendMail::DeleteAllPath(void)
{
vector<char *>().swap(file_path_list_); // 清除容器并最小化它的容量
}
int CSendMail::GetFileData(char* file_path)
{
file_buffer_ = NULL;
if(file_path == NULL)
{
return 0;
}
// 通过读取文件的大小,来开辟数组空间的大小
ifstream fin(file_path);
if (!fin.is_open())
{
return -1;
}
fin.seekg(0, ios::end);
int file_length = fin.tellg();
fin.seekg(0, ios::beg);
file_buffer_ = new char[file_length];
fin.read(file_buffer_, file_length);
fin.close();
return file_length;
}
void CSendMail::GetFileName(char* file_name,char* file_path)
{
if(file_path == NULL || file_name == NULL)
{
return;
}
for(int index = 0; index < (int)strlen(file_path); index++)
{
if(file_path[strlen(file_path) - 1 - index] == '\\')
{
memcpy(file_name, &file_path[strlen(file_path) - index], index);
return;
}
}
}
bool CSendMail::CReateSocket(SOCKET &sock)
{
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD( 2, 2 );
err = WSAStartup(wVersionRequested, &wsaData);
if (err != 0)
{
return false;
}
if (LOBYTE(wsaData.wVersion) != 2 ||
HIBYTE(wsaData.wVersion) != 2 )
{
WSACleanup();
return false;
}
sock = socket(AF_INET, SOCK_STREAM, IPPROTO_IP);
if (sock == INVALID_SOCKET)
{
return false;
}
sockaddr_in server_addr;
memset(&server_addr, 0, sizeof(sockaddr_in));
server_addr.sin_family = AF_INET;
server_addr.sin_port = htons(25); // 发邮件一般都是25端口,SSL的是465端口
if(mail_info_.mail_server_name == "")
{
server_addr.sin_addr.s_addr = inet_addr(mail_info_.mail_server_ip_addr); // 直接使用IP地址
}
else
{
struct hostent *hp = gethostbyname(mail_info_.mail_server_name); // 使用名称
server_addr.sin_addr.s_addr = *(int*)(*hp->h_addr_list);
char* ip = inet_ntoa(server_addr.sin_addr);
strcpy(mail_info_.mail_server_ip_addr, ip);
}
int ret = connect(sock, (sockaddr*)&server_addr, sizeof(server_addr)); // 建立连接
if (ret == SOCKET_ERROR)
{
return false;
}
return true;
}
bool CSendMail::Logon(SOCKET &sock)
{
recv(sock, receive_buff_, 1024, 0);
memset(send_buff_, 0, sizeof(send_buff_));
sprintf_s(send_buff_, "HELO %s\r\n", mail_info_.mail_server_ip_addr);
send(sock,send_buff_, strlen(send_buff_), 0); // 开始会话
memset(receive_buff_, 0, sizeof(receive_buff_));
recv(sock,receive_buff_, 1024, 0);
if(receive_buff_[0] != '2' || receive_buff_[1] != '5' || receive_buff_[2] != '0')
{
return false;
}
memset(send_buff_, 0, sizeof(send_buff_));
sprintf_s(send_buff_, "AUTH LOGIN\r\n");
send(sock,send_buff_, strlen(send_buff_),0); // 请求登录
recv(sock,receive_buff_, 1024, 0);
if(receive_buff_[0] != '3' || receive_buff_[1] != '3' || receive_buff_[2] != '4')
{
return false;
}
memset(send_buff_, 0, sizeof(send_buff_));
Char2Base64(send_buff_, mail_info_.mailbox_user_name, strlen(mail_info_.mailbox_user_name));
send_buff_[strlen(send_buff_)] = '\r';
send_buff_[strlen(send_buff_)] = '\n';
send(sock,send_buff_, strlen(send_buff_), 0); // 发送用户名
recv(sock,receive_buff_, 1024, 0);
if(receive_buff_[0] != '3' || receive_buff_[1] != '3' || receive_buff_[2] != '4')
{
return false;
}
memset(send_buff_, 0, sizeof(send_buff_));
Char2Base64(send_buff_, mail_info_.mailbox_user_pwd, strlen(mail_info_.mailbox_user_pwd));
send_buff_[strlen(send_buff_)] = '\r';
send_buff_[strlen(send_buff_)] = '\n';
send(sock, send_buff_, strlen(send_buff_), 0); // 发送用户密码
recv(sock, receive_buff_, 1024, 0);
if(receive_buff_[0] != '2' || receive_buff_[1] != '3' || receive_buff_[2] != '5')
{
return false;
}
return true; // 登录成功
}
bool CSendMail::SendHead(SOCKET &sock)
{
int rt;
memset(send_buff_, 0, sizeof(send_buff_));
sprintf_s(send_buff_, "MAIL FROM:<%s>\r\n", mail_info_.mailbox_sender);
rt = send(sock,send_buff_, strlen(send_buff_), 0);
if(rt != strlen(send_buff_))
{
return false;
}
recv(sock, receive_buff_, 1024, 0);
memset(send_buff_, 0, sizeof(send_buff_));
sprintf_s(send_buff_, "RCPT TO:<%s>\r\n", mail_info_.mailbox_receiver);
rt = send(sock,send_buff_, strlen(send_buff_),0);
if(rt != strlen(send_buff_))
{
return false;
}
recv(sock, receive_buff_, 1024, 0);
memset(send_buff_, 0, sizeof(send_buff_));
memcpy(send_buff_, "DATA\r\n", strlen("DATA\r\n"));
rt = send(sock, send_buff_, strlen(send_buff_),0);
if(rt != strlen(send_buff_))
{
return false;
}
recv(sock, receive_buff_, 1024, 0);
memset(send_buff_, 0, sizeof(send_buff_));
sprintf_s(send_buff_, "From:\"%s\"<%s>\r\n", mail_info_.mailbox_sender_show_name, mail_info_.mailbox_sender);
sprintf_s(&send_buff_[strlen(send_buff_)], 150, "To:\"INVT.COM.CN\"<%s>\r\n", mail_info_.mailbox_receiver);
sprintf_s(&send_buff_[strlen(send_buff_)], 150, "Subject:%s\r\nMime-Version: 1.0\r\nContent-Type: multipart/mixed; boundary=\"INVT\"\r\n\r\n", mail_info_.mail_title);
rt = send(sock, send_buff_, strlen(send_buff_), 0);
if(rt != strlen(send_buff_))
{
return false;
}
return true;
}
bool CSendMail::SendTextBody(SOCKET &sock)
{
int rt;
memset(send_buff_, 0, sizeof(send_buff_));
sprintf_s(send_buff_, "--INVT\r\nContent-Type: text/plain;\r\n charset=\"gb2312\"\r\n\r\n%s\r\n\r\n", mail_info_.mail_body);
rt = send(sock, send_buff_, strlen(send_buff_), 0);
if(rt != strlen(send_buff_))
{
return false;
}
else
{
return true;
}
}
bool CSendMail::SendFileBody(SOCKET &sock)
{
char* file_path;
int rt;
int len;
char file_name[128];
int pt = 0;
int dest_length = 0;
for(int index = 0; index < file_path_list_.size(); index++)
{
pt = 0;
memset(file_name, 0, 128);
file_path = file_path_list_[index];
len = GetFileData(file_path);
GetFileName(file_name,file_path);
sprintf_s(send_buff_, "--INVT\r\nContent-Type: application/octet-stream;\r\n name=\"%s\"\r\nContent-Transfer-Encoding: base64\r\nContent-Disposition: attachment;\r\n filename=\"%s\"\r\n\r\n", file_name, file_name);
send(sock,send_buff_, strlen(send_buff_), 0);
while (pt < len)
{
memset(send_buff_,0,sizeof(send_buff_));
// 760为1024的最大整数,(760/4)*3=570
dest_length = 4096;
Base64Encode((BYTE*)file_buffer_ + pt, min(len-pt,570), send_buff_, &dest_length);
int len1 = strlen(send_buff_);
pt += min(len-pt, 570);
if(pt == len)
{
send_buff_[len1 ] = '\r';
send_buff_[len1+1] = '\n';
send_buff_[len1+2] = '\0';
}
else
send_buff_[len1 ] = '\0';
rt = send(sock,send_buff_, strlen(send_buff_), 0);
if(rt != strlen(send_buff_))
{
return false;
}
}
if(len!=0)
{
delete[] file_buffer_;
}
}
return true;
}
bool CSendMail::SendEnd(SOCKET &sock)
{
sprintf_s(send_buff_, "--INVT--\r\n.\r\n");
send(sock,send_buff_, strlen(send_buff_), 0);
sprintf_s(send_buff_, "QUIT\r\n");
send(sock,send_buff_, strlen(send_buff_), 0);
closesocket(sock);
WSACleanup();
return true;
}
bool CSendMail::BeginSendMail(sMailInfo &smail_info)
{
memcpy(&mail_info_, &smail_info, sizeof(smail_info));
if(mail_info_.mail_body == NULL
|| mail_info_.mail_server_ip_addr == NULL
|| mail_info_.mail_server_name == NULL
|| mail_info_.mailbox_receiver == NULL
|| mail_info_.mailbox_sender == NULL
|| mail_info_.mailbox_sender_show_name == NULL
|| mail_info_.mail_title == NULL
|| mail_info_.mailbox_user_name == NULL
|| mail_info_.mailbox_user_pwd == NULL)
{
return false;
}
SOCKET sock;
if(!CReateSocket(sock)) // 建立连接
{
return false;
}
if(!Logon(sock)) // 登录邮箱
{
return false;
}
if(!SendHead(sock)) // 发送邮件头
{
return false;
}
if(!SendTextBody(sock)) // 发送邮件文本部分
{
return false;
}
if(!SendFileBody(sock)) // 发送附件
{
return false;
}
if(!SendEnd(sock)) // 结束邮件,并关闭sock
{
return false;
}
return true;
}