static void
event_cb (uv_udp_t *req, ssize_t nread, const uv_buf_t *buf,
const struct sockaddr *addr, unsigned flags)
{
Event *event = (Event *) req;
Server *server = SERVER_FROM_EVENT (event);
// Time timestamp = time_now ();
debug ("\"%.*s\"", (int) nread, buf->base);
if (nread == 0)
goto done;
if (nread < 0) {
// TODO: log error
uv_close ((uv_handle_t *) req, NULL);
goto reject;
}
// TODO: log ...
// char sender[17] = { 0 };
// uv_ip4_name((const struct sockaddr_in*) addr, sender, 16);
debug ("parsing json");
if (json_parse_src (event->json, buf->base, nread)
!= JSON_OK)
goto reject;
Status stat = G_OK;
JsonVal *val;
val = json_lookup (event->json, "event", 5);
if (val->type != JSON_STRING)
// reject for invalid event type
goto reject;
EventKey *e = map_get (event_map, val->as_string, val->size);
if (e) {
debug ("handling event: %.*s", (int) val->size, val->as_string);
e->handler (event);
}
done:
debug ("done");
// send Ack Response
goto finally;
reject:
debug ("reject");
// send Reject Response
goto finally;
finally:
event->base_alloc = false;
return;
}
int process_cmd(json_item *ijson, struct _cmd_process *pc, subuser **iuser, acetables *g_ape)
{
callback *cmdback, tmpback = {handle_bad_cmd, NEED_NOTHING};
json_item *rjson = json_lookup(ijson->jchild.child, "cmd"), *jchl;
subuser *sub = pc->sub;
unsigned int flag;
unsigned short int attach = 1;
if (rjson != NULL && rjson->jval.vu.str.value != NULL) {
callbackp cp;
cp.client = NULL;
cp.cmd = rjson->jval.vu.str.value;
cp.data = NULL;
cp.hlines = NULL;
json_item *jsid;
if ((cmdback = (callback *)hashtbl_seek(g_ape->hCallback, rjson->jval.vu.str.value)) == NULL) {
cmdback = &tmpback;
}
if ((pc->guser == NULL && (jsid = json_lookup(ijson->jchild.child, "sessid")) != NULL && jsid->jval.vu.str.value != NULL)) {
pc->guser = seek_user_id(jsid->jval.vu.str.value, g_ape);
}
if (cmdback->need != NEED_NOTHING || pc->guser != NULL) { // We process the connection like a "NEED_SESSID" if the user provide its key
if (pc->guser == NULL) {
RAW *newraw;
json_item *jlist = json_new_object();
json_set_property_strZ(jlist, "code", "004");
json_set_property_strZ(jlist, "value", "BAD_SESSID");
newraw = forge_raw(RAW_ERR, jlist);
send_raw_inline(pc->client, pc->transport, newraw, g_ape);
return (CONNECT_SHUTDOWN);
} else if (sub == NULL) {
sub = getsubuser(pc->guser, pc->host);
if (sub != NULL && sub->client->fd != pc->client->fd && sub->state == ALIVE) {
/* The user open a new connection while he already has one openned */
struct _transport_open_same_host_p retval = transport_open_same_host(sub, pc->client, pc->guser->transport);
if (retval.client_close != NULL) {
// Send CLOSE if no response has been sent yet
if (!sub->headers.sent) {
RAW *newraw;
json_item *jlist = json_new_object();
json_set_property_strZ(jlist, "value", "null");
newraw = forge_raw("CLOSE", jlist);
send_raw_inline((retval.client_close->fd == pc->client->fd ? pc->client : sub->client), pc->transport, newraw, g_ape);
}
// It's not safe to leave the subuser pointer in co->attach anymore
// since subuser could subsequently be deleted, leaving a pointer into free heap.
// So, let this socket finish up on its own and pretend its already finished.
sub->state = ADIED;
sub->headers.sent = 0;
http_headers_free(sub->headers.content);
sub->headers.content = NULL;
sub->burn_after_writing = 0;
g_ape->co[retval.client_close->fd]->attach = NULL;
safe_shutdown(retval.client_close->fd, g_ape);
}
sub->client = cp.client = retval.client_listener;
sub->state = retval.substate;
attach = retval.attach;
} else if (sub == NULL) {
sub = addsubuser(pc->client, pc->host, pc->guser, g_ape);
if (sub != NULL) {
subuser_restor(sub, g_ape);
}
} else if (sub != NULL) {
sub->client = pc->client;
}
pc->guser->idle = (long int)time(NULL); // update user idle
sub->idle = pc->guser->idle; // Update subuser idle
}
}
if (pc->guser != NULL && sub != NULL && (jchl = json_lookup(ijson->jchild.child, "chl")) != NULL /*&& jchl->jval.vu.integer_value > sub->current_chl*/) {
sub->current_chl = jchl->jval.vu.integer_value;
}
#if 0
else if (pc->guser != NULL && sub != NULL) {
/* if a bad challenge is detected, we are stoping walking on cmds */
send_error(pc->guser, "BAD_CHL", "250", g_ape);
sub->state = ALIVE;
return (CONNECT_KEEPALIVE);
}
#endif
cp.param = json_lookup(ijson->jchild.child, "params");
cp.client = (cp.client != NULL ? cp.client : pc->client);
cp.call_user = pc->guser;
cp.call_subuser = sub;
cp.g_ape = g_ape;
cp.host = pc->host;
cp.ip = pc->ip;
cp.chl = (sub != NULL ? sub->current_chl : 0);
cp.transport = pc->transport;
cp.hlines = pc->hlines;
/* Little hack to access user object on connect hook callback (preallocate an user) */
if (strncasecmp(cp.cmd, "CONNECT", 7) == 0 && cp.cmd[7] == '\0') {
pc->guser = cp.call_user = adduser(cp.client, cp.host, cp.ip, NULL, g_ape);
pc->guser->transport = pc->transport;
sub = cp.call_subuser = cp.call_user->subuser;
}
if ((flag = call_cmd_hook(cp.cmd, &cp, g_ape)) == RETURN_CONTINUE) {
flag = cmdback->func(&cp);
}
if (flag & RETURN_NULL) {
pc->guser = NULL;
} else if (flag & RETURN_BAD_PARAMS) {
RAW *newraw;
json_item *jlist = json_new_object();
if (cp.chl) {
json_set_property_intN(jlist, "chl", 3, cp.chl);
}
json_set_property_strZ(jlist, "code", "001");
json_set_property_strZ(jlist, "value", "BAD_PARAMS");
newraw = forge_raw(RAW_ERR, jlist);
if (cp.call_user != NULL) {
//cp.call_user->istmp = 0;
if (sub == NULL) {
sub = getsubuser(pc->guser, pc->host);
}
post_raw_sub(newraw, sub, g_ape);
} else {
send_raw_inline(pc->client, pc->transport, newraw, g_ape);
}
//guser = NULL;
} else if (flag & RETURN_BAD_CMD) {
RAW *newraw;
json_item *jlist = json_new_object();
if (cp.chl) {
json_set_property_intN(jlist, "chl", 3, cp.chl);
}
json_set_property_strZ(jlist, "code", "003");
json_set_property_strZ(jlist, "value", "BAD_CMD");
newraw = forge_raw(RAW_ERR, jlist);
if (cp.call_user != NULL) {
if (sub == NULL) {
sub = getsubuser(pc->guser, pc->host);
}
post_raw_sub(newraw, sub, g_ape);
} else {
send_raw_inline(pc->client, pc->transport, newraw, g_ape);
}
}
if (pc->guser != NULL) {
if (sub == NULL) {
sub = getsubuser(pc->guser, pc->host);
}
if (iuser != NULL) {
*iuser = (attach ? sub : NULL);
}
/* If tmpfd is set, we do not have any reasons to change its state */
sub->state = ALIVE;
if (flag & RETURN_HANG || flag & RETURN_BAD_PARAMS) {
return (CONNECT_KEEPALIVE);
}
} else if (flag & RETURN_HANG) {
/* Doesn't need sessid */
return (CONNECT_KEEPALIVE);
} else {
return (CONNECT_SHUTDOWN);
}
} else {
RAW *newraw;
json_item *jlist = json_new_object();
json_set_property_strZ(jlist, "code", "003");
json_set_property_strZ(jlist, "value", "NO_CMD");
newraw = forge_raw(RAW_ERR, jlist);
send_raw_inline(pc->client, pc->transport, newraw, g_ape);
//printf("Cant find %s\n", rjson->jval.vu.str.value);
return (CONNECT_SHUTDOWN);
}
return -1;
}
