static void substitute(Mail_T *m, Event_T e) {
char timestamp[STRLEN];
ASSERT(m && e);
Util_replaceString(&(*m)->from, "$HOST", Run.localhostname);
Util_replaceString(&(*m)->subject, "$HOST", Run.localhostname);
Util_replaceString(&(*m)->message, "$HOST", Run.localhostname);
Util_getRFC822Date((time_t *)&e->collected.tv_sec, timestamp, STRLEN);
Util_replaceString(&(*m)->subject, "$DATE", timestamp);
Util_replaceString(&(*m)->message, "$DATE", timestamp);
Util_replaceString(&(*m)->subject, "$SERVICE", Event_get_source_name(e));
Util_replaceString(&(*m)->message, "$SERVICE", Event_get_source_name(e));
Util_replaceString(&(*m)->subject, "$EVENT", Event_get_description(e));
Util_replaceString(&(*m)->message, "$EVENT", Event_get_description(e));
Util_replaceString(&(*m)->subject, "$DESCRIPTION", NVLSTR(Event_get_message(e)));
Util_replaceString(&(*m)->message, "$DESCRIPTION", NVLSTR(Event_get_message(e)));
Util_replaceString(&(*m)->subject, "$ACTION", Event_get_action_description(e));
Util_replaceString(&(*m)->message, "$ACTION", Event_get_action_description(e));
}
static void substitute(Mail_T m, Event_T e) {
char timestamp[STRLEN];
ASSERT(m && e);
Util_replaceString(&m->from, "$HOST", Run.system->name);
Util_replaceString(&m->subject, "$HOST", Run.system->name);
Util_replaceString(&m->message, "$HOST", Run.system->name);
Time_string(e->collected.tv_sec, timestamp);
Util_replaceString(&m->subject, "$DATE", timestamp);
Util_replaceString(&m->message, "$DATE", timestamp);
Util_replaceString(&m->subject, "$SERVICE", Event_get_source_name(e));
Util_replaceString(&m->message, "$SERVICE", Event_get_source_name(e));
Util_replaceString(&m->subject, "$EVENT", Event_get_description(e));
Util_replaceString(&m->message, "$EVENT", Event_get_description(e));
Util_replaceString(&m->subject, "$DESCRIPTION", NVLSTR(Event_get_message(e)));
Util_replaceString(&m->message, "$DESCRIPTION", NVLSTR(Event_get_message(e)));
Util_replaceString(&m->subject, "$ACTION", Event_get_action_description(e));
Util_replaceString(&m->message, "$ACTION", Event_get_action_description(e));
}
/*
* Setup the environment with special MONIT_xxx variables. The program
* executed may use such variable for various purposes.
*/
static void set_monit_environment(Service_T S, command_t C, Event_T E, const char *date) {
setenv("MONIT_DATE", date, 1);
setenv("MONIT_SERVICE", S->name, 1);
setenv("MONIT_HOST", Run.system->name, 1);
setenv("MONIT_EVENT", E ? Event_get_description(E) : C == S->start ? "Started" : C == S->stop ? "Stopped" : "No Event", 1);
setenv("MONIT_DESCRIPTION", E ? Event_get_message(E) : C == S->start ? "Started" : C == S->stop ? "Stopped" : "No Event", 1);
if (S->type == TYPE_PROCESS) {
putenv(Str_cat("MONIT_PROCESS_PID=%d", Util_isProcessRunning(S, FALSE)));
putenv(Str_cat("MONIT_PROCESS_MEMORY=%ld", S->inf->priv.process.mem_kbyte));
putenv(Str_cat("MONIT_PROCESS_CHILDREN=%d", S->inf->priv.process.children));
putenv(Str_cat("MONIT_PROCESS_CPU_PERCENT=%d", S->inf->priv.process.cpu_percent));
}
}
/*
* Setup the environment with special MONIT_xxx variables. The program
* executed may use such variable for various purposes.
*/
static void set_monit_environment(Service_T S, command_t C, Event_T E, const char *date) {
setenv("MONIT_DATE", date, 1);
setenv("MONIT_SERVICE", S->name, 1);
setenv("MONIT_HOST", Run.system->name, 1);
setenv("MONIT_EVENT", E ? Event_get_description(E) : C == S->start ? "Started" : C == S->stop ? "Stopped" : "No Event", 1);
setenv("MONIT_DESCRIPTION", E ? E->message : C == S->start ? "Started" : C == S->stop ? "Stopped" : "No Event", 1);
switch (S->type) {
case Service_Process:
putenv(Str_cat("MONIT_PROCESS_PID=%d", S->inf->priv.process.pid));
putenv(Str_cat("MONIT_PROCESS_MEMORY=%llu", (unsigned long long)((double)S->inf->priv.process.mem / 1024.)));
putenv(Str_cat("MONIT_PROCESS_CHILDREN=%d", S->inf->priv.process.children));
putenv(Str_cat("MONIT_PROCESS_CPU_PERCENT=%.1f", S->inf->priv.process.cpu_percent));
break;
case Service_Program:
putenv(Str_cat("MONIT_PROGRAM_STATUS=%d", S->program->exitStatus));
break;
default:
break;
}
}
/**
* Notify registred users about the event
* @param E An Event object
* @return If failed, return HANDLER_ALERT flag or HANDLER_SUCCEEDED if succeeded
*/
int handle_alert(Event_T E) {
Service_T s;
int rv = HANDLER_SUCCEEDED;
ASSERT(E);
s= Event_get_source(E);
if(!s) {
LogError("Aborting alert\n");
return rv;
}
if(s->maillist || Run.maillist) {
Mail_T m;
Mail_T n;
Mail_T list= NULL;
/*
* Build a mail-list with local recipients that has registered interest
* for this event.
*/
for(m= s->maillist; m; m= m->next) {
if(
/* particular event notification type is allowed for given recipient */
IS_EVENT_SET(m->events, Event_get_id(E)) &&
(
/* state change notification is sent always */
E->state_changed ||
/* in the case that the state is failed for more cycles we check
* whether we should send the reminder */
(E->state && m->reminder && E->count % m->reminder == 0)
)
)
{
Mail_T tmp= NULL;
NEW(tmp);
copy_mail(tmp, m);
substitute(&tmp, E);
replace_bare_linefeed(&tmp);
tmp->next= list;
list= tmp;
DEBUG("%s notification is sent to %s\n", Event_get_description(E), m->to);
}
}
/*
* Build a mail-list with global recipients that has registered interest
* for this event. Recipients which are defined in the service localy
* overrides the same recipient events which are registered globaly.
*/
for(m= Run.maillist; m; m= m->next) {
int skip= FALSE;
for(n= s->maillist; n; n= n->next) {
if(IS(m->to, n->to)) {
skip= TRUE;
break;
}
}
if(
/* the local service alert definition has not overrided the global one */
!skip &&
/* particular event notification type is allowed for given recipient */
IS_EVENT_SET(m->events, Event_get_id(E)) &&
(
/* state change notification is sent always */
E->state_changed ||
/* in the case that the state is failed for more cycles we check
* whether we should send the reminder */
(E->state && m->reminder && E->count % m->reminder == 0)
)
)
{
Mail_T tmp= NULL;
NEW(tmp);
copy_mail(tmp, m);
substitute(&tmp, E);
replace_bare_linefeed(&tmp);
tmp->next= list;
list= tmp;
DEBUG("%s notification is sent to %s\n", Event_get_description(E), m->to);
}
}
if(list) {
if(!sendmail(list))
rv = HANDLER_ALERT;
gc_mail_list(&list);
}
}
return rv;
}