int route_message(struct hub_info* hub, struct hub_user* u, struct adc_message* msg)
{
struct hub_user* target = NULL;
switch (msg->cache[0])
{
case 'B': /* Broadcast to all logged in clients */
route_to_all(hub, msg);
break;
case 'D':
target = uman_get_user_by_sid(hub->users, msg->target);
if (target)
{
route_to_user(hub, target, msg);
}
break;
case 'E':
target = uman_get_user_by_sid(hub->users, msg->target);
if (target)
{
route_to_user(hub, target, msg);
route_to_user(hub, u, msg);
}
break;
case 'F':
route_to_subscribers(hub, msg);
break;
default:
/* Ignore the message */
break;
}
return 0;
}
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_chat_message(struct hub_info* hub, struct hub_user* u, struct adc_message* cmd)
{
char* message = adc_msg_get_argument(cmd, 0);
char* message_decoded = NULL;
int ret = 0;
int relay = 1;
int broadcast;
int private_msg;
int command;
int offset;
if (!message)
return 0;
message_decoded = adc_msg_unescape(message);
if (!message_decoded)
{
hub_free(message);
return 0;
}
if (!user_is_logged_in(u))
{
hub_free(message);
return 0;
}
broadcast = (cmd->cache[0] == 'B');
private_msg = (cmd->cache[0] == 'D' || cmd->cache[0] == 'E');
command = (message[0] == '!' || message[0] == '+');
if (broadcast && command)
{
/*
* A message such as "++message" is handled as "+message", by removing the first character.
* The first character is removed by memmoving the string one byte to the left.
*/
if (message[1] == message[0])
{
relay = 1;
offset = adc_msg_get_arg_offset(cmd);
memmove(cmd->cache+offset+1, cmd->cache+offset+2, cmd->length - offset);
cmd->length--;
}
else
{
relay = command_invoke(hub->commands, u, message_decoded);
}
}
/* FIXME: Plugin should do this! */
if (relay && (((hub->config->chat_is_privileged && !user_is_protected(u)) || (user_flag_get(u, flag_muted))) && broadcast))
{
relay = 0;
}
if (relay)
{
plugin_st status = st_default;
if (broadcast)
{
status = plugin_handle_chat_message(hub, u, message_decoded, 0);
}
else if (private_msg)
{
struct hub_user* target = uman_get_user_by_sid(hub->users, cmd->target);
if (target)
status = plugin_handle_private_message(hub, u, target, message_decoded, 0);
else
relay = 0;
}
if (status == st_deny)
relay = 0;
}
if (relay)
{
/* adc_msg_remove_named_argument(cmd, "PM"); */
if (broadcast)
{
plugin_log_chat_message(hub, u, message_decoded, 0);
}
ret = route_message(hub, u, cmd);
}
hub_free(message);
hub_free(message_decoded);
return ret;
}
