#include "sm.h"
static mod_ret_t _offline_in_sess(mod_instance_t mi, sess_t sess, pkt_t pkt) {
st_ret_t ret;
os_t os;
os_object_t o;
nad_t nad;
pkt_t queued;
int ns, elem, attr;
char cttl[15], cstamp[18];
time_t ttl, stamp;
if(pkt->type == pkt_PRESENCE && pkt->to == NULL && sess->user->top == NULL) {
ret = storage_get(pkt->sm->st, "queue", jid_user(sess->jid), NULL, &os);
if(ret != st_SUCCESS) {
log_debug(ZONE, "storage_get returned %d", ret);
return mod_PASS;
}
if(os_iter_first(os))
do {
o = os_iter_object(os);
if(os_object_get_nad(os, o, "xml", &nad)) {
queued = pkt_new(pkt->sm, nad_copy(nad));
if(queued == NULL) {
log_debug(ZONE, "invalid queued packet, not delivering");
} else {
if((ns = nad_find_scoped_namespace(queued->nad, uri_EXPIRE, NULL)) >= 0 &&
(elem = nad_find_elem(queued->nad, 1, ns, "x", 1)) >= 0 &&
(attr = nad_find_attr(queued->nad, elem, -1, "seconds", NULL)) >= 0) {
snprintf(cttl, 15, "%.*s", NAD_AVAL_L(queued->nad, attr), NAD_AVAL(queued->nad, attr));
ttl = atoi(cttl);
if((ns = nad_find_scoped_namespace(queued->nad, uri_DELAY, NULL)) >= 0 &&
(elem = nad_find_elem(queued->nad, 1, ns, "x", 1)) >= 0 &&
(attr = nad_find_attr(queued->nad, elem, -1, "stamp", NULL)) >= 0) {
snprintf(cstamp, 18, "%.*s", NAD_AVAL_L(queued->nad, attr), NAD_AVAL(queued->nad, attr));
stamp = datetime_in(cstamp);
if(stamp + ttl <= time(NULL)) {
log_debug(ZONE, "queued packet has expired, dropping");
pkt_free(queued);
continue;
}
}
}
log_debug(ZONE, "delivering queued packet to %s", jid_full(sess->jid));
pkt_sess(queued, sess);
}
}
} while(os_iter_next(os));
os_free(os);
storage_delete(pkt->sm->st, "queue", jid_user(sess->jid), NULL);
}
return mod_PASS;
}
static mod_ret_t _offline_pkt_user(mod_instance_t mi, user_t user, pkt_t pkt) {
int ns, elem, attr;
os_t os;
os_object_t o;
pkt_t event;
if(user->top != NULL && (pkt->type & pkt_MESSAGE || pkt->type & pkt_S10N)) {
pkt_sess(pkt, user->top);
return mod_HANDLED;
}
if(pkt->type & pkt_MESSAGE || pkt->type & pkt_S10N) {
log_debug(ZONE, "saving message for later");
pkt_delay(pkt, time(NULL), user->sm->id);
os = os_new();
o = os_object_new(os);
os_object_put(o, "xml", pkt->nad, os_type_NAD);
switch(storage_put(user->sm->st, "queue", jid_user(user->jid), os)) {
case st_FAILED:
os_free(os);
return -stanza_err_INTERNAL_SERVER_ERROR;
case st_NOTIMPL:
os_free(os);
return -stanza_err_SERVICE_UNAVAILABLE;
default:
os_free(os);
if((ns = nad_find_scoped_namespace(pkt->nad, uri_EVENT, NULL)) >= 0 &&
(elem = nad_find_elem(pkt->nad, 1, ns, "x", 1)) >= 0 &&
nad_find_elem(pkt->nad, elem, ns, "offline", 1) >= 0 &&
nad_find_elem(pkt->nad, elem, ns, "id", 1) < 0) {
event = pkt_create(user->sm, "message", NULL, jid_full(pkt->from), jid_full(pkt->to));
attr = nad_find_attr(pkt->nad, 1, -1, "type", NULL);
if(attr >= 0)
nad_set_attr(event->nad, 1, -1, "type", NAD_AVAL(pkt->nad, attr), NAD_AVAL_L(pkt->nad, attr));
ns = nad_add_namespace(event->nad, uri_EVENT, NULL);
nad_append_elem(event->nad, ns, "x", 2);
nad_append_elem(event->nad, ns, "offline", 3);
nad_append_elem(event->nad, ns, "id", 3);
attr = nad_find_attr(pkt->nad, 1, -1, "id", NULL);
if(attr >= 0)
nad_append_cdata(event->nad, NAD_AVAL(pkt->nad, attr), NAD_AVAL_L(pkt->nad, attr), 4);
pkt_router(event);
}
pkt_free(pkt);
return mod_HANDLED;
}
}
return mod_PASS;
}
static void _offline_user_delete(mod_instance_t mi, jid_t jid) {
os_t os;
os_object_t o;
nad_t nad;
pkt_t queued;
int ns, elem, attr;
char cttl[15], cstamp[18];
time_t ttl, stamp;
log_debug(ZONE, "deleting queue for %s", jid_user(jid));
if(storage_get(mi->mod->mm->sm->st, "queue", jid_user(jid), NULL, &os) == st_SUCCESS) {
if(os_iter_first(os))
do {
o = os_iter_object(os);
if(os_object_get_nad(os, o, "xml", &nad)) {
queued = pkt_new(mi->mod->mm->sm, nad);
if(queued == NULL) {
log_debug(ZONE, "invalid queued packet, not delivering");
} else {
if((ns = nad_find_scoped_namespace(queued->nad, uri_EXPIRE, NULL)) >= 0 &&
(elem = nad_find_elem(queued->nad, 1, ns, "x", 1)) >= 0 &&
(attr = nad_find_attr(queued->nad, elem, -1, "seconds", NULL)) >= 0) {
snprintf(cttl, 15, "%.*s", NAD_AVAL_L(queued->nad, attr), NAD_AVAL(queued->nad, attr));
ttl = atoi(cttl);
if((ns = nad_find_scoped_namespace(queued->nad, uri_DELAY, NULL)) >= 0 &&
(elem = nad_find_elem(queued->nad, 1, ns, "x", 1)) >= 0 &&
(attr = nad_find_attr(queued->nad, elem, -1, "stamp", NULL)) >= 0) {
snprintf(cstamp, 18, "%.*s", NAD_AVAL_L(queued->nad, attr), NAD_AVAL(queued->nad, attr));
stamp = datetime_in(cstamp);
if(stamp + ttl <= time(NULL)) {
log_debug(ZONE, "queued packet has expired, dropping");
pkt_free(queued);
continue;
}
}
}
log_debug(ZONE, "bouncing queued packet from %s", jid_full(queued->from));
pkt_router(pkt_error(queued, stanza_err_ITEM_NOT_FOUND));
}
}
} while(os_iter_next(os));
os_free(os);
}
storage_delete(mi->sm->st, "queue", jid_user(jid), NULL);
}
int offline_init(mod_instance_t mi, char *arg) {
module_t mod = mi->mod;
if(mod->init) return 0;
mod->in_sess = _offline_in_sess;
mod->pkt_user = _offline_pkt_user;
mod->user_delete = _offline_user_delete;
return 0;
}