int route_to_user(struct hub_info* hub, struct hub_user* user, struct adc_message* msg)
{
#ifdef DEBUG_SENDQ
char* data = strndup(msg->cache, msg->length-1);
LOG_PROTO("send %s: \"%s\"", sid_to_string(user->id.sid), data);
free(data);
#endif
if (!user->connection)
return 0;
uhub_assert(msg->cache && *msg->cache);
if (ioq_send_is_empty(user->send_queue) && !user_flag_get(user, flag_pipeline))
{
/* Perform oportunistic write */
ioq_send_add(user->send_queue, msg);
handle_net_write(user);
}
else
{
if (check_send_queue(hub, user, msg) >= 0)
{
ioq_send_add(user->send_queue, msg);
if (!user_flag_get(user, flag_pipeline))
user_net_io_want_write(user);
}
}
return 1;
}
ssize_t net_con_ssl_accept(struct net_connection* con)
{
struct net_ssl_openssl* handle = get_handle(con);
handle->state = tls_st_accepting;
ssize_t ret;
ret = SSL_accept(handle->ssl);
LOG_PROTO("SSL_accept() ret=%d", ret);
if (ret > 0)
{
net_con_update(con, NET_EVENT_READ);
handle->state = tls_st_connected;
return ret;
}
return handle_openssl_error(con, ret, tls_st_accepting);
}
ssize_t net_ssl_send(struct net_connection* con, const void* buf, size_t len)
{
struct net_ssl_openssl* handle = get_handle(con);
uhub_assert(handle->state == tls_st_connected);
ERR_clear_error();
ssize_t ret = SSL_write(handle->ssl, buf, len);
add_io_stats(handle);
LOG_PROTO("SSL_write(con=%p, buf=%p, len=" PRINTF_SIZE_T ") => %d", con, buf, len, ret);
if (ret > 0)
handle->ssl_write_events = 0;
else
ret = handle_openssl_error(con, ret, 0);
net_ssl_update(con, handle->events); // Update backend only
return ret;
}
int hub_handle_message(struct hub_info* hub, struct hub_user* u, const char* line, size_t length)
{
int ret = 0;
struct adc_message* cmd = 0;
LOG_PROTO("recv %s: %s", sid_to_string(u->id.sid), line);
if (user_is_disconnecting(u))
return -1;
cmd = adc_msg_parse_verify(u, line, length);
if (cmd)
{
switch (cmd->cmd)
{
case ADC_CMD_HSUP:
CHECK_FLOOD(extras, 0);
ret = hub_handle_support(hub, u, cmd);
break;
case ADC_CMD_HPAS:
CHECK_FLOOD(extras, 0);
ret = hub_handle_password(hub, u, cmd);
break;
case ADC_CMD_BINF:
CHECK_FLOOD(update, 1);
ret = hub_handle_info(hub, u, cmd);
break;
case ADC_CMD_DINF:
case ADC_CMD_EINF:
case ADC_CMD_FINF:
case ADC_CMD_BQUI:
case ADC_CMD_DQUI:
case ADC_CMD_EQUI:
case ADC_CMD_FQUI:
/* these must never be allowed for security reasons, so we ignore them. */
CHECK_FLOOD(extras, 1);
break;
case ADC_CMD_EMSG:
case ADC_CMD_DMSG:
case ADC_CMD_BMSG:
case ADC_CMD_FMSG:
CHECK_FLOOD(chat, 1);
ret = hub_handle_chat_message(hub, u, cmd);
break;
case ADC_CMD_BSCH:
case ADC_CMD_DSCH:
case ADC_CMD_ESCH:
case ADC_CMD_FSCH:
cmd->priority = -1;
if (plugin_handle_search(hub, u, cmd->cache) == st_deny)
break;
CHECK_FLOOD(search, 1);
ROUTE_MSG;
case ADC_CMD_FRES: // spam
case ADC_CMD_BRES: // spam
case ADC_CMD_ERES: // pointless.
CHECK_FLOOD(extras, 1);
break;
case ADC_CMD_DRES:
cmd->priority = -1;
if (plugin_handle_search_result(hub, u, uman_get_user_by_sid(hub->users, cmd->target), cmd->cache) == st_deny)
break;
/* CHECK_FLOOD(search, 0); */
ROUTE_MSG;
case ADC_CMD_DRCM:
cmd->priority = -1;
if (plugin_handle_revconnect(hub, u, uman_get_user_by_sid(hub->users, cmd->target)) == st_deny)
break;
CHECK_FLOOD(connect, 1);
ROUTE_MSG;
case ADC_CMD_DCTM:
cmd->priority = -1;
if (plugin_handle_connect(hub, u, uman_get_user_by_sid(hub->users, cmd->target)) == st_deny)
break;
CHECK_FLOOD(connect, 1);
ROUTE_MSG;
case ADC_CMD_BCMD:
case ADC_CMD_DCMD:
case ADC_CMD_ECMD:
case ADC_CMD_FCMD:
case ADC_CMD_HCMD:
CHECK_FLOOD(extras, 1);
break;
default:
CHECK_FLOOD(extras, 1);
ROUTE_MSG;
}
adc_msg_free(cmd);
}
else
{
if (!user_is_logged_in(u))
{
ret = -1;
}
}
return ret;
}
int hub_handle_message(struct hub_info* hub, struct hub_user* u, const char* line, size_t length)
{
int ret = 0;
struct adc_message* cmd = 0;
LOG_PROTO("recv %s: %s", sid_to_string(u->id.sid), line);
if (user_is_disconnecting(u))
return -1;
cmd = adc_msg_parse_verify(u, line, length);
if (cmd)
{
switch (cmd->cmd)
{
case ADC_CMD_HSUP:
CHECK_FLOOD(extras, 0);
ret = hub_handle_support(hub, u, cmd);
break;
case ADC_CMD_HPAS:
CHECK_FLOOD(extras, 0);
ret = hub_handle_password(hub, u, cmd);
break;
case ADC_CMD_BINF:
CHECK_FLOOD(update, 1);
ret = hub_handle_info(hub, u, cmd);
break;
case ADC_CMD_DINF:
case ADC_CMD_EINF:
case ADC_CMD_FINF:
/* these must never be allowed for security reasons, so we ignore them. */
break;
case ADC_CMD_EMSG:
case ADC_CMD_DMSG:
case ADC_CMD_BMSG:
case ADC_CMD_FMSG:
CHECK_FLOOD(chat, 1);
ret = hub_handle_chat_message(hub, u, cmd);
break;
case ADC_CMD_BSCH:
case ADC_CMD_DSCH:
case ADC_CMD_ESCH:
case ADC_CMD_FSCH:
cmd->priority = -1;
CHECK_CHAT_ONLY;
CHECK_FLOOD(search, 1);
ROUTE_MSG;
case ADC_CMD_DRES:
cmd->priority = -1;
CHECK_CHAT_ONLY;
/* CHECK_FLOOD(search, 0); */
ROUTE_MSG;
case ADC_CMD_DRCM:
case ADC_CMD_DCTM:
cmd->priority = -1;
CHECK_CHAT_ONLY;
CHECK_FLOOD(connect, 1);
ROUTE_MSG;
default:
CHECK_FLOOD(extras, 1);
ROUTE_MSG;
}
adc_msg_free(cmd);
}
else
{
if (!user_is_logged_in(u))
{
ret = -1;
}
}
return ret;
}