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#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include "ChatServer.hpp"
#include "UserInfo.hpp"
#include "ChatRoom.hpp"
const int qlen_for_listen = 6;
ChatServer::ChatServer(EventSelector *sel, DatabaseManager *db, int fd)
: FdHandler(fd), the_selector(sel), dbase(db), room(0)
{
the_selector->Add(this);
lobby = new ChatRoom(this, std_id_lobby, 0);
talkers = new StorageOfUsers();
}
ChatServer::~ChatServer()
{
// right delete this stuff?
if(room) {
for(int i = 0; i < room_len; i++)
DeleteRoom(i);
delete[] room;
}
the_selector->Remove(this);
while(talkers->Disconnect())
;
delete talkers;
}
ChatServer *ChatServer::Start(EventSelector *sel, DatabaseManager *db, int port)
{
int in_d = socket(AF_INET, SOCK_STREAM, 0);
if(in_d == -1)
return 0;
int opt = 1;
setsockopt(in_d, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
struct sockaddr_in addr;
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = htonl(INADDR_ANY);
addr.sin_port = htons(port);
int res = bind(in_d, (struct sockaddr*) &addr, sizeof(addr));
if(res == -1)
return 0;
res = listen(in_d, qlen_for_listen);
if(res == -1)
return 0;
return new ChatServer(sel, db, in_d);
}
int ChatServer::AddRoom(char *password)
{
if(!room) {
room_len = 16;
room = new ChatRoom*[room_len];
for(int i = 0; i < room_len; i++)
room[i] = 0;
}
int id = -1;
for(int i = 0; i < room_len; i++) {
if(room[i] == 0) {
id = i;
room[i] = new ChatRoom(this, id, password);
break;
}
}
if(id == -1) {
ChatRoom **tmp = new ChatRoom*[room_len+1];
for(int i = 0; i < room_len; i++)
tmp[i] = room[i];
id = room_len;
tmp[room_len] = new ChatRoom(this, id, password);
room_len += 1;
delete[] room;
room = tmp;
}
return id;
}
bool ChatServer::DeleteRoom(int id)
{
if(!room[id])
return false;
delete room[id];
room[id] = 0;
return true;
}
bool ChatServer::RoomExist(int id) const
{
if(!room[id])
return false;
return true;
}
void ChatServer::GotoLobby(ChatRoom *cur_room, UserInfo *u)
{
cur_room->RemoveSession(u);
lobby->AddSession(u);
u->SetRoom(lobby);
}
handle_room_enter ChatServer::ChangeSessionRoom(ChatRoom *cur_room,
UserInfo *u, int id, char *pass)
{
if(id < 0 || id >= room_len || !room[id])
return enter_noexist;
const char *secret_word = room[id]->GetSecretPass();
CONSOLE_LOG("right pass: %s; user enter pass: %s\n", secret_word, pass);
if(secret_word != 0) {
if(!pass)
return enter_private;
if(strcmp(secret_word, pass) != 0)
return enter_uncorrect_pass;
}
cur_room->RemoveSession(u);
room[id]->AddSession(u);
u->SetRoom(room[id]);
return enter_success;
}
void ChatServer::CloseConnection(UserInfo *u)
{
talkers->RemoveUser(u);
the_selector->Remove(u);
delete u;
}
void ChatServer::Handle(bool r, bool w)
{
if(!r)
return;
struct sockaddr_in addr;
socklen_t len = sizeof(addr);
int sd = accept(GetFd(), (struct sockaddr*) &addr, &len);
if(sd == -1)
return;
UserInfo *u = new UserInfo(lobby, sd);
talkers->AddUser(u);
lobby->AddSession(u);
the_selector->Add(u);
u->Send("Welcome to WantChat! What is your name?");
}
///////////////////////////////////////////////////////////////
StorageOfUsers::~StorageOfUsers()
{
while(first) {
item *tmp = first;
first = first->next;
delete tmp;
}
}
void StorageOfUsers::SendAllUsers(const char *msg, UserInfo *except,
const int spec_msg)
{
CONSOLE_LOG("Send message all: %s\n", msg);
item *p;
for(p = first; p; p = p->next)
if(p->u != except)
p->u->Send(msg, spec_msg);
}
UserInfo *StorageOfUsers::SearchUserByName(const char *name)
{
item *tmp = first;
while(tmp) {
const char *search = name;
const char *checking = tmp->u->GetName();
if(strcmp(search, checking) == 0)
return tmp->u;
tmp = tmp->next;
}
return 0;
}
void StorageOfUsers::AddUser(UserInfo *u)
{
item *p = new item;
p->next = first;
p->u = u;
first = p;
online++;
}
void StorageOfUsers::RemoveUser(UserInfo *u)
{
item **p;
for(p = &first; *p; p = &((*p)->next)) {
if( ((*p)->u) == u ) {
item *tmp = *p;
*p = tmp->next;
// not delete UserInfo!
online--;
delete tmp;
tmp = 0; // null for first
return;
}
}
}
UserInfo *StorageOfUsers::Disconnect()
{
if(first) {
item *tmp = first;
first = first->next;
UserInfo *rn = tmp->u;
online--;
delete tmp;
return rn;
}
first = 0;
return 0;
}
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