static int check_logged_in(struct hub_info* hub, struct hub_user* user, struct adc_message* cmd)
{
struct hub_user* lookup1 = uman_get_user_by_nick(hub->users, user->id.nick);
struct hub_user* lookup2 = uman_get_user_by_cid(hub->users, user->id.cid);
if (lookup1 == user)
{
return 0;
}
if (lookup1 || lookup2)
{
if (lookup1 == lookup2)
{
LOG_DEBUG("check_logged_in: exact same user is logged in: %s", user->id.nick);
hub_disconnect_user(hub, lookup1, quit_ghost_timeout);
return 0;
}
else
{
if (lookup1)
{
LOG_DEBUG("check_logged_in: nickname is in use: %s", user->id.nick);
return status_msg_inf_error_nick_taken;
}
else
{
LOG_DEBUG("check_logged_in: CID is in use: %s", user->id.cid);
return status_msg_inf_error_cid_taken;
}
}
}
return 0;
}
void net_event(struct net_connection* con, int event, void *arg)
{
struct hub_user* user = (struct hub_user*) arg;
int flag_close = 0;
#ifdef DEBUG_SENDQ
LOG_TRACE("net_event() : fd=%d, ev=%d, arg=%p", con->sd, (int) event, arg);
#endif
if (event == NET_EVENT_TIMEOUT)
{
if (user_is_connecting(user))
{
hub_disconnect_user(g_hub, user, quit_timeout);
}
return;
}
if (event & NET_EVENT_READ)
{
flag_close = handle_net_read(user);
if (flag_close)
{
hub_disconnect_user(g_hub, user, flag_close);
return;
}
}
if (event & NET_EVENT_WRITE)
{
flag_close = handle_net_write(user);
if (flag_close)
{
hub_disconnect_user(g_hub, user, flag_close);
return;
}
}
}
void on_update_failure(struct hub_info* hub, struct hub_user* u, enum status_message msg)
{
plugin_log_user_update_error(hub, u, hub_get_status_message_log(hub, msg));
hub_send_status(hub, u, msg, status_level_fatal);
hub_disconnect_user(hub, u, quit_update_error);
}
int hub_handle_support(struct hub_info* hub, struct hub_user* u, struct adc_message* cmd)
{
int ret = 0;
int index = 0;
int ok = 1;
char* arg = adc_msg_get_argument(cmd, index);
if (hub->status == hub_status_disabled && u->state == state_protocol)
{
on_login_failure(hub, u, status_msg_hub_disabled);
hub_free(arg);
return -1;
}
while (arg)
{
if (strlen(arg) == 6)
{
fourcc_t fourcc = FOURCC(arg[2], arg[3], arg[4], arg[5]);
if (strncmp(arg, ADC_SUP_FLAG_ADD, 2) == 0)
{
user_support_add(u, fourcc);
}
else if (strncmp(arg, ADC_SUP_FLAG_REMOVE, 2) == 0)
{
user_support_remove(u, fourcc);
}
else
{
ok = 0;
}
}
else
{
ok = 0;
}
index++;
hub_free(arg);
arg = adc_msg_get_argument(cmd, index);
}
if (u->state == state_protocol)
{
if (index == 0) ok = 0; /* Need to support *SOMETHING*, at least BASE */
if (!ok)
{
/* disconnect user. Do not send crap during initial handshake! */
hub_disconnect_user(hub, u, quit_logon_error);
return -1;
}
if (user_flag_get(u, feature_base))
{
/* User supports ADC/1.0 and a hash we know */
if (user_flag_get(u, feature_tiger))
{
hub_send_handshake(hub, u);
/* TODO: timeouts for mux users */
if (u->connection)
net_con_set_timeout(u->connection, TIMEOUT_HANDSHAKE);
}
else
{
// no common hash algorithm.
hub_send_status(hub, u, status_msg_proto_no_common_hash, status_level_fatal);
hub_disconnect_user(hub, u, quit_protocol_error);
}
}
else if (user_flag_get(u, feature_bas0))
{
if (hub->config->obsolete_clients)
{
hub_send_handshake(hub, u);
/* TODO: timeouts for mux users */
if (u->connection)
net_con_set_timeout(u->connection, TIMEOUT_HANDSHAKE);
}
else
{
/* disconnect user for using an obsolete client. */
char* tmp = adc_msg_escape(hub->config->msg_proto_obsolete_adc0);
struct adc_message* message = adc_msg_construct(ADC_CMD_IMSG, 6 + strlen(tmp));
adc_msg_add_argument(message, tmp);
hub_free(tmp);
route_to_user(hub, u, message);
adc_msg_free(message);
hub_disconnect_user(hub, u, quit_protocol_error);
}
}
else
{
/* Not speaking a compatible protocol - just disconnect. */
hub_disconnect_user(hub, u, quit_logon_error);
}
}
return ret;
}
