void send_chan(puser users, pchan chans, char * buffer, int sender_fd,
int option) {
char * message = malloc(MAXLEN);
int k = 0;
int fd = -1;
// Search for the user's channel
int chan_nb = users[search_fd(users, sender_fd)].chan;
if (option == 1) { // Option = 1 if user sent message, and 0 if it is the server
// Get the sender's id to have his nickname when formatting
int u = search_fd(users, sender_fd);
// Format the message
sprintf(message, "{%s} : %s", users[u].nick, buffer);
}
else {
sprintf(message, "%s",buffer);
}
// Send to all users of the channel
while (k < BACKLOG) {
fd = chans[chan_nb].members[k];
if (fd != -1 && fd != sender_fd) {
do_write(fd, message);
}
k++;
}
free(message);
}
void chat_one(MES mes)
{
//私聊转发消息
int fd;
fd = search_fd(mes.to);
if(fd == 0) {
fd = search_fd(mes.from);
mes.resault = -1;
}
if(send(fd,&mes,sizeof(MES),0) < 0) {
my_err("send",__LINE__);
exit(0);
}
if(mes.resault != -1) {
add_one_message(mes);
}
//puts("保存一条记录");
}
void send_bc(puser users, char * buffer, int fd) {
int k = 0;
int user_id = search_fd(users, fd);
char * msg = malloc(MAXLEN);
memset(msg, '0', MAXLEN);
sscanf(buffer, "/msgall %250[^\n]", msg);
sprintf(buffer, "%s : %s \n", users[user_id].nick, msg);
for (k = 0; k < BACKLOG; k++) {
if (users[k].sock_nb != fd && users[k].sock_nb != -1)
do_write(users[k].sock_nb, buffer);
}
free(msg);
}
void send_user(puser users, char * buffer, int sender) {
char * temp = malloc(MAXLEN);
// Extracting the expected reciever's nickname from the buffer
sscanf(buffer, "/msg %s", temp);
// Search for the reciever's id by its name and search for the sender's id by its socket
int r = search_name(users, temp);
int s = search_fd(users, sender);
if (r == -1) {
sprintf(buffer, "[Server] : %s is not a logged on user \n", temp);
do_write(sender, buffer);
return;
}
// Extract the message from the buffer, we use a regex to have the spaces included in the message
sscanf(buffer, "/msg %*s %250[^\n]", temp);
// Format the message to be sent
sprintf(buffer, "[%s] : %s\n", users[s].nick, temp);
// Finally send the message to the user
do_write(users[r].sock_nb, buffer);
//
free(temp);
}
void chat_group(MES mes)
{
char sql[255];
int res;//执行sql语句后的返回标志
MYSQL_RES *res_ptr;//指向查询结果的指针
MYSQL_FIELD *field;//字段结构指针
MYSQL_ROW result_row;//按行返回查询信息
int row,column;//查询返回的行数和列数
MYSQL *conn;//一个数据库链接
//初始化连接句柄
conn = mysql_init(NULL);
if(conn == NULL) {
//如果返回NULL说明初始化失败
printf("mysql_init failed!\n");
return;// EXIT_FAILURE;
}
conn = mysql_real_connect(conn,HOSTNAME,USER,PASS,DATABASE,0,NULL,0);
if (!conn) {
printf("Connection failed!\n");
}
mysql_query(conn,"set names gbk");
//防止乱码。设置和数据库的编码一致就不会乱码
sprintf(sql,"SELECT * FROM group_%s;",mes.to);
//puts(sql);
res = mysql_query(conn,sql);//正确返回0
if(res) {
perror("my_query");
mysql_close(conn);
exit(0);
} else{
//把查询结果给res_ptr
res_ptr = mysql_store_result(conn);
if(res_ptr) {
int ro;
ro = mysql_num_rows(res_ptr);
int i;
for(i=1;i<ro+1;i++) {
//将群消息发给每个人
result_row = mysql_fetch_row(res_ptr);
//printf("打算发消息给%s\n",result_row[0]);
int dd;
if((dd=search_fd(result_row[0])) == 0) {
continue;
}
if(search_fd(result_row[0]) == search_fd(mes.from)) {
continue;
}
if(send(dd,&mes,sizeof(MES),0) < 0) {
my_err("send",__LINE__);
exit(0);
}
//printf("已经发消息给%s\n",result_row[0]);
}
add_group_message(mes);
//puts("添加一条群聊记录!");
}
}
mysql_close(conn);
}
