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nagios4/base/notifications.c

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Imported Upstream version 3.5.1.dfsg
2017-05-19 22:22:40 +02:00
/*****************************************************************************
*
* NOTIFICATIONS.C - Service and host notification functions for Nagios
*
* Copyright (c) 2009-2010 Nagios Core Development Team and Community Contributors
* Copyright (c) 1999-2008 Ethan Galstad (egalstad@nagios.org)
* Last Modified: 08-04-2010
*
* License:
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*****************************************************************************/
#include "../include/config.h"
#include "../include/common.h"
#include "../include/objects.h"
#include "../include/statusdata.h"
#include "../include/macros.h"
#include "../include/nagios.h"
#include "../include/broker.h"
#include "../include/neberrors.h"
extern notification *notification_list;
extern contact *contact_list;
extern serviceescalation *serviceescalation_list;
extern hostescalation *hostescalation_list;
extern time_t program_start;
extern int interval_length;
extern int log_notifications;
extern int enable_notifications;
extern int notification_timeout;
extern unsigned long next_notification_id;
extern char *generic_summary;
/******************************************************************/
/***************** SERVICE NOTIFICATION FUNCTIONS *****************/
/******************************************************************/
/* notify contacts about a service problem or recovery */
int service_notification(service *svc, int type, char *not_author, char *not_data, int options) {
host *temp_host = NULL;
notification *temp_notification = NULL;
contact *temp_contact = NULL;
time_t current_time;
struct timeval start_time;
struct timeval end_time;
int escalated = FALSE;
int result = OK;
int contacts_notified = 0;
int increment_notification_number = FALSE;
nagios_macros mac;
int neb_result;
log_debug_info(DEBUGL_FUNCTIONS, 0, "service_notification()\n");
/* get the current time */
time(&current_time);
gettimeofday(&start_time, NULL);
log_debug_info(DEBUGL_NOTIFICATIONS, 0, "** Service Notification Attempt ** Host: '%s', Service: '%s', Type: %d, Options: %d, Current State: %d, Last Notification: %s", svc->host_name, svc->description, type, options, svc->current_state, ctime(&svc->last_notification));
/* if we couldn't find the host, return an error */
if((temp_host = svc->host_ptr) == NULL) {
log_debug_info(DEBUGL_NOTIFICATIONS, 0, "Couldn't find the host associated with this service, so we won't send a notification!\n");
return ERROR;
}
/* check the viability of sending out a service notification */
if(check_service_notification_viability(svc, type, options) == ERROR) {
log_debug_info(DEBUGL_NOTIFICATIONS, 0, "Notification viability test failed. No notification will be sent out.\n");
return OK;
}
log_debug_info(DEBUGL_NOTIFICATIONS, 0, "Notification viability test passed.\n");
/* should the notification number be increased? */
if(type == NOTIFICATION_NORMAL || (options & NOTIFICATION_OPTION_INCREMENT)) {
svc->current_notification_number++;
increment_notification_number = TRUE;
}
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Current notification number: %d (%s)\n", svc->current_notification_number, (increment_notification_number == TRUE) ? "incremented" : "unchanged");
/* save and increase the current notification id */
svc->current_notification_id = next_notification_id;
next_notification_id++;
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Creating list of contacts to be notified.\n");
#ifdef USE_EVENT_BROKER
/* send data to event broker */
end_time.tv_sec = 0L;
end_time.tv_usec = 0L;
neb_result = broker_notification_data(NEBTYPE_NOTIFICATION_START, NEBFLAG_NONE, NEBATTR_NONE, SERVICE_NOTIFICATION, type, start_time, end_time, (void *)svc, not_author, not_data, escalated, 0, NULL);
if(NEBERROR_CALLBACKCANCEL == neb_result) {
free_notification_list();
return ERROR;
}
else if(NEBERROR_CALLBACKOVERRIDE == neb_result) {
free_notification_list();
return OK;
}
#endif
/* allocate memory for macros */
memset(&mac, 0, sizeof(mac));
/* create the contact notification list for this service */
/* 2011-11-01 MF:
check viability before adding a contact
to the notification list, requires type
this prevents us from running through all
the steps until notify_contact_of_host|service
is reached. furthermore the $NOTIFICATIONRECIPIENTS$
macro only gets populated with actual recipients,
not all contacts assigned to that host|service.
note: checks against timeperiod will happen now(),
and not when the notification is actually being sent.
original patch by Opsview Team
*/
create_notification_list_from_service(&mac, svc, options, &escalated, type);
/* XXX: crazy indent */
/* we have contacts to notify... */
if(notification_list != NULL) {
/* grab the macro variables */
grab_host_macros_r(&mac, temp_host);
grab_service_macros_r(&mac, svc);
/* if this notification has an author, attempt to lookup the associated contact */
if(not_author != NULL) {
/* see if we can find the contact - first by name, then by alias */
if((temp_contact = find_contact(not_author)) == NULL) {
for(temp_contact = contact_list; temp_contact != NULL; temp_contact = temp_contact->next) {
if(!strcmp(temp_contact->alias, not_author))
break;
}
}
}
/* get author and comment macros */
if(not_author)
mac.x[MACRO_NOTIFICATIONAUTHOR] = strdup(not_author);
if(temp_contact != NULL) {
mac.x[MACRO_NOTIFICATIONAUTHORNAME] = strdup(temp_contact->name);
mac.x[MACRO_NOTIFICATIONAUTHORALIAS] = strdup(temp_contact->alias);
}
if(not_data)
mac.x[MACRO_NOTIFICATIONCOMMENT] = strdup(not_data);
/* NOTE: these macros are deprecated and will likely disappear in Nagios 4.x */
/* if this is an acknowledgement, get author and comment macros */
if(type == NOTIFICATION_ACKNOWLEDGEMENT) {
if(not_author)
mac.x[MACRO_SERVICEACKAUTHOR] = strdup(not_author);
if(not_data)
mac.x[MACRO_SERVICEACKCOMMENT] = strdup(not_data);
if(temp_contact != NULL) {
mac.x[MACRO_SERVICEACKAUTHORNAME] = strdup(temp_contact->name);
mac.x[MACRO_SERVICEACKAUTHORALIAS] = strdup(temp_contact->alias);
}
}
/* set the notification type macro */
if(type == NOTIFICATION_ACKNOWLEDGEMENT)
mac.x[MACRO_NOTIFICATIONTYPE] = "ACKNOWLEDGEMENT";
else if(type == NOTIFICATION_FLAPPINGSTART)
mac.x[MACRO_NOTIFICATIONTYPE] = "FLAPPINGSTART";
else if(type == NOTIFICATION_FLAPPINGSTOP)
mac.x[MACRO_NOTIFICATIONTYPE] = "FLAPPINGSTOP";
else if(type == NOTIFICATION_FLAPPINGDISABLED)
mac.x[MACRO_NOTIFICATIONTYPE] = "FLAPPINGDISABLED";
else if(type == NOTIFICATION_DOWNTIMESTART)
mac.x[MACRO_NOTIFICATIONTYPE] = "DOWNTIMESTART";
else if(type == NOTIFICATION_DOWNTIMEEND)
mac.x[MACRO_NOTIFICATIONTYPE] = "DOWNTIMEEND";
else if(type == NOTIFICATION_DOWNTIMECANCELLED)
mac.x[MACRO_NOTIFICATIONTYPE] = "DOWNTIMECANCELLED";
else if(type == NOTIFICATION_CUSTOM)
mac.x[MACRO_NOTIFICATIONTYPE] = "CUSTOM";
else if(svc->current_state == STATE_OK)
mac.x[MACRO_NOTIFICATIONTYPE] = "RECOVERY";
else
mac.x[MACRO_NOTIFICATIONTYPE] = "PROBLEM";
mac.x[MACRO_NOTIFICATIONTYPE] = strdup(mac.x[MACRO_NOTIFICATIONTYPE]);
/* set the notification number macro */
asprintf(&mac.x[MACRO_SERVICENOTIFICATIONNUMBER], "%d", svc->current_notification_number);
/* the $NOTIFICATIONNUMBER$ macro is maintained for backward compatability */
mac.x[MACRO_NOTIFICATIONNUMBER] = strdup(mac.x[MACRO_SERVICENOTIFICATIONNUMBER]);
/* set the notification id macro */
asprintf(&mac.x[MACRO_SERVICENOTIFICATIONID], "%lu", svc->current_notification_id);
/* notify each contact (duplicates have been removed) */
for(temp_notification = notification_list; temp_notification != NULL; temp_notification = temp_notification->next) {
/* grab the macro variables for this contact */
grab_contact_macros_r(&mac, temp_notification->contact);
/* notify this contact */
result = notify_contact_of_service(&mac, temp_notification->contact, svc, type, not_author, not_data, options, escalated);
/* keep track of how many contacts were notified */
if(result == OK)
contacts_notified++;
}
/* free memory allocated to the notification list */
free_notification_list();
/* clear out all macros we created */
my_free(mac.x[MACRO_NOTIFICATIONNUMBER]);
my_free(mac.x[MACRO_SERVICENOTIFICATIONNUMBER]);
my_free(mac.x[MACRO_SERVICENOTIFICATIONID]);
my_free(mac.x[MACRO_NOTIFICATIONCOMMENT]);
my_free(mac.x[MACRO_NOTIFICATIONTYPE]);
my_free(mac.x[MACRO_NOTIFICATIONAUTHOR]);
my_free(mac.x[MACRO_NOTIFICATIONAUTHORNAME]);
my_free(mac.x[MACRO_NOTIFICATIONAUTHORALIAS]);
my_free(mac.x[MACRO_SERVICEACKAUTHORNAME]);
my_free(mac.x[MACRO_SERVICEACKAUTHORALIAS]);
my_free(mac.x[MACRO_SERVICEACKAUTHOR]);
my_free(mac.x[MACRO_SERVICEACKCOMMENT]);
/* this gets set in add_notification() */
my_free(mac.x[MACRO_NOTIFICATIONRECIPIENTS]);
/*
* Clear all macros, or they will linger in memory
* now that we're done with the notifications.
*/
clear_summary_macros_r(&mac);
clear_contact_macros_r(&mac);
clear_argv_macros_r(&mac);
clear_host_macros_r(&mac);
clear_service_macros_r(&mac);
if(type == NOTIFICATION_NORMAL) {
/* adjust last/next notification time and notification flags if we notified someone */
if(contacts_notified > 0) {
/* calculate the next acceptable re-notification time */
svc->next_notification = get_next_service_notification_time(svc, current_time);
log_debug_info(DEBUGL_NOTIFICATIONS, 0, "%d contacts were notified. Next possible notification time: %s", contacts_notified, ctime(&svc->next_notification));
/* update the last notification time for this service (this is needed for rescheduling later notifications) */
svc->last_notification = current_time;
/* update notifications flags */
if(svc->current_state == STATE_UNKNOWN)
svc->notified_on_unknown = TRUE;
else if(svc->current_state == STATE_WARNING)
svc->notified_on_warning = TRUE;
else if(svc->current_state == STATE_CRITICAL)
svc->notified_on_critical = TRUE;
}
/* we didn't end up notifying anyone */
else if(increment_notification_number == TRUE) {
/* adjust current notification number */
svc->current_notification_number--;
log_debug_info(DEBUGL_NOTIFICATIONS, 0, "No contacts were notified. Next possible notification time: %s", ctime(&svc->next_notification));
}
}
log_debug_info(DEBUGL_NOTIFICATIONS, 0, "%d contacts were notified.\n", contacts_notified);
}
/* there were no contacts, so no notification really occurred... */
else {
/* readjust current notification number, since one didn't go out */
if(increment_notification_number == TRUE)
svc->current_notification_number--;
log_debug_info(DEBUGL_NOTIFICATIONS, 0, "No contacts were found for notification purposes. No notification was sent out.\n");
}
/* this gets set in create_notification_list_from_service() */
my_free(mac.x[MACRO_NOTIFICATIONISESCALATED]);
/* get the time we finished */
gettimeofday(&end_time, NULL);
#ifdef USE_EVENT_BROKER
/* send data to event broker */
broker_notification_data(NEBTYPE_NOTIFICATION_END, NEBFLAG_NONE, NEBATTR_NONE, SERVICE_NOTIFICATION, type, start_time, end_time, (void *)svc, not_author, not_data, escalated, contacts_notified, NULL);
#endif
/* update the status log with the service information */
update_service_status(svc, FALSE);
return OK;
}
/* checks the viability of sending out a service alert (top level filters) */
int check_service_notification_viability(service *svc, int type, int options) {
host *temp_host;
timeperiod *temp_period;
time_t current_time;
time_t timeperiod_start;
time_t first_problem_time;
log_debug_info(DEBUGL_FUNCTIONS, 0, "check_service_notification_viability()\n");
/* forced notifications bust through everything */
if(options & NOTIFICATION_OPTION_FORCED) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "This is a forced service notification, so we'll send it out.\n");
return OK;
}
/* get current time */
time(&current_time);
/* are notifications enabled? */
if(enable_notifications == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Notifications are disabled, so service notifications will not be sent out.\n");
return ERROR;
}
/* find the host this service is associated with */
if((temp_host = (host *)svc->host_ptr) == NULL)
return ERROR;
/* if we couldn't find the host, return an error */
if(temp_host == NULL) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Couldn't find the host associated with this service, so we won't send a notification.\n");
return ERROR;
}
/* if the service has no notification period, inherit one from the host */
temp_period = svc->notification_period_ptr;
if(temp_period == NULL) {
temp_period = svc->host_ptr->notification_period_ptr;
}
/* see if the service can have notifications sent out at this time */
if(check_time_against_period(current_time, temp_period) == ERROR) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "This service shouldn't have notifications sent out at this time.\n");
/* calculate the next acceptable notification time, once the next valid time range arrives... */
if(type == NOTIFICATION_NORMAL) {
get_next_valid_time(current_time, &timeperiod_start, svc->notification_period_ptr);
/* looks like there are no valid notification times defined, so schedule the next one far into the future (one year)... */
if(timeperiod_start == (time_t)0)
svc->next_notification = (time_t)(current_time + (60 * 60 * 24 * 365));
/* else use the next valid notification time */
else
svc->next_notification = timeperiod_start;
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Next possible notification time: %s\n", ctime(&svc->next_notification));
}
return ERROR;
}
/* are notifications temporarily disabled for this service? */
if(svc->notifications_enabled == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Notifications are temporarily disabled for this service, so we won't send one out.\n");
return ERROR;
}
/*********************************************/
/*** SPECIAL CASE FOR CUSTOM NOTIFICATIONS ***/
/*********************************************/
/* custom notifications are good to go at this point... */
if(type == NOTIFICATION_CUSTOM) {
if(svc->scheduled_downtime_depth > 0 || temp_host->scheduled_downtime_depth > 0) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "We shouldn't send custom notification during scheduled downtime.\n");
return ERROR;
}
return OK;
}
/****************************************/
/*** SPECIAL CASE FOR ACKNOWLEGEMENTS ***/
/****************************************/
/* acknowledgements only have to pass three general filters, although they have another test of their own... */
if(type == NOTIFICATION_ACKNOWLEDGEMENT) {
/* don't send an acknowledgement if there isn't a problem... */
if(svc->current_state == STATE_OK) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "The service is currently OK, so we won't send an acknowledgement.\n");
return ERROR;
}
/* acknowledgement viability test passed, so the notification can be sent out */
return OK;
}
/****************************************/
/*** SPECIAL CASE FOR FLAPPING ALERTS ***/
/****************************************/
/* flapping notifications only have to pass three general filters */
if(type == NOTIFICATION_FLAPPINGSTART || type == NOTIFICATION_FLAPPINGSTOP || type == NOTIFICATION_FLAPPINGDISABLED) {
/* don't send a notification if we're not supposed to... */
if(svc->notify_on_flapping == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "We shouldn't notify about FLAPPING events for this service.\n");
return ERROR;
}
/* don't send notifications during scheduled downtime */
if(svc->scheduled_downtime_depth > 0 || temp_host->scheduled_downtime_depth > 0) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "We shouldn't notify about FLAPPING events during scheduled downtime.\n");
return ERROR;
}
/* flapping viability test passed, so the notification can be sent out */
return OK;
}
/****************************************/
/*** SPECIAL CASE FOR DOWNTIME ALERTS ***/
/****************************************/
/* downtime notifications only have to pass three general filters */
if(type == NOTIFICATION_DOWNTIMESTART || type == NOTIFICATION_DOWNTIMEEND || type == NOTIFICATION_DOWNTIMECANCELLED) {
/* don't send a notification if we're not supposed to... */
if(svc->notify_on_downtime == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "We shouldn't notify about DOWNTIME events for this service.\n");
return ERROR;
}
/* don't send notifications during scheduled downtime (for service only, not host) */
if(svc->scheduled_downtime_depth > 0) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "We shouldn't notify about DOWNTIME events during scheduled downtime.\n");
return ERROR;
}
/* downtime viability test passed, so the notification can be sent out */
return OK;
}
/****************************************/
/*** NORMAL NOTIFICATIONS ***************/
/****************************************/
/* is this a hard problem/recovery? */
if(svc->state_type == SOFT_STATE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "This service is in a soft state, so we won't send a notification out.\n");
return ERROR;
}
/* has this problem already been acknowledged? */
if(svc->problem_has_been_acknowledged == TRUE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "This service problem has already been acknowledged, so we won't send a notification out.\n");
return ERROR;
}
/* check service notification dependencies */
if(check_service_dependencies(svc, NOTIFICATION_DEPENDENCY) == DEPENDENCIES_FAILED) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Service notification dependencies for this service have failed, so we won't sent a notification out.\n");
return ERROR;
}
/* check host notification dependencies */
if(check_host_dependencies(temp_host, NOTIFICATION_DEPENDENCY) == DEPENDENCIES_FAILED) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Host notification dependencies for this service have failed, so we won't sent a notification out.\n");
return ERROR;
}
/* see if we should notify about problems with this service */
if(svc->current_state == STATE_UNKNOWN && svc->notify_on_unknown == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "We shouldn't notify about UNKNOWN states for this service.\n");
return ERROR;
}
if(svc->current_state == STATE_WARNING && svc->notify_on_warning == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "We shouldn't notify about WARNING states for this service.\n");
return ERROR;
}
if(svc->current_state == STATE_CRITICAL && svc->notify_on_critical == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "We shouldn't notify about CRITICAL states for this service.\n");
return ERROR;
}
if(svc->current_state == STATE_OK) {
if(svc->notify_on_recovery == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "We shouldn't notify about RECOVERY states for this service.\n");
return ERROR;
}
if(!(svc->notified_on_unknown == TRUE || svc->notified_on_warning == TRUE || svc->notified_on_critical == TRUE)) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "We shouldn't notify about this recovery.\n");
return ERROR;
}
}
/* see if enough time has elapsed for first notification (Mathias Sundman) */
/* 10/02/07 don't place restrictions on recoveries or non-normal notifications, must use last time ok (or program start) in calculation */
/* it is reasonable to assume that if the host was never up, the program start time should be used in this calculation */
if(type == NOTIFICATION_NORMAL && svc->current_notification_number == 0 && svc->current_state != STATE_OK) {
/* determine the time to use of the first problem point */
first_problem_time = svc->last_time_ok; /* not accurate, but its the earliest time we could use in the comparison */
if((svc->last_time_warning < first_problem_time) && (svc->last_time_warning > svc->last_time_ok))
first_problem_time = svc->last_time_warning;
if((svc->last_time_unknown < first_problem_time) && (svc->last_time_unknown > svc->last_time_ok))
first_problem_time = svc->last_time_unknown;
if((svc->last_time_critical < first_problem_time) && (svc->last_time_critical > svc->last_time_ok))
first_problem_time = svc->last_time_critical;
if(current_time < (time_t)((first_problem_time == (time_t)0L) ? program_start : first_problem_time) + (time_t)(svc->first_notification_delay * interval_length)) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Not enough time has elapsed since the service changed to a non-OK state, so we should not notify about this problem yet\n");
return ERROR;
}
}
/* if this service is currently flapping, don't send the notification */
if(svc->is_flapping == TRUE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "This service is currently flapping, so we won't send notifications.\n");
return ERROR;
}
/***** RECOVERY NOTIFICATIONS ARE GOOD TO GO AT THIS POINT *****/
if(svc->current_state == STATE_OK)
return OK;
/* don't notify contacts about this service problem again if the notification interval is set to 0 */
if(svc->no_more_notifications == TRUE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "We shouldn't re-notify contacts about this service problem.\n");
return ERROR;
}
/* if the host is down or unreachable, don't notify contacts about service failures */
if(temp_host->current_state != HOST_UP) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "The host is either down or unreachable, so we won't notify contacts about this service.\n");
return ERROR;
}
/* don't notify if we haven't waited long enough since the last time (and the service is not marked as being volatile) */
if((current_time < svc->next_notification) && svc->is_volatile == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "We haven't waited long enough to re-notify contacts about this service.\n");
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Next valid notification time: %s", ctime(&svc->next_notification));
return ERROR;
}
/* if this service is currently in a scheduled downtime period, don't send the notification */
if(svc->scheduled_downtime_depth > 0) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "This service is currently in a scheduled downtime, so we won't send notifications.\n");
return ERROR;
}
/* if this host is currently in a scheduled downtime period, don't send the notification */
if(temp_host->scheduled_downtime_depth > 0) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "The host this service is associated with is currently in a scheduled downtime, so we won't send notifications.\n");
return ERROR;
}
return OK;
}
/* check viability of sending out a service notification to a specific contact (contact-specific filters) */
int check_contact_service_notification_viability(contact *cntct, service *svc, int type, int options) {
log_debug_info(DEBUGL_FUNCTIONS, 0, "check_contact_service_notification_viability()\n");
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "** Checking service notification viability for contact '%s'...\n", cntct->name);
/* forced notifications bust through everything */
if(options & NOTIFICATION_OPTION_FORCED) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "This is a forced service notification, so we'll send it out to this contact.\n");
return OK;
}
/* are notifications enabled? */
if(cntct->service_notifications_enabled == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Service notifications are disabled for this contact.\n");
return ERROR;
}
/* see if the contact can be notified at this time */
if(check_time_against_period(time(NULL), cntct->service_notification_period_ptr) == ERROR) {
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "This contact shouldn't be notified at this time.\n");
return ERROR;
}
/*********************************************/
/*** SPECIAL CASE FOR CUSTOM NOTIFICATIONS ***/
/*********************************************/
/* custom notifications are good to go at this point... */
if(type == NOTIFICATION_CUSTOM)
return OK;
/****************************************/
/*** SPECIAL CASE FOR FLAPPING ALERTS ***/
/****************************************/
if(type == NOTIFICATION_FLAPPINGSTART || type == NOTIFICATION_FLAPPINGSTOP || type == NOTIFICATION_FLAPPINGDISABLED) {
if(cntct->notify_on_service_flapping == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "We shouldn't notify this contact about FLAPPING service events.\n");
return ERROR;
}
return OK;
}
/****************************************/
/*** SPECIAL CASE FOR DOWNTIME ALERTS ***/
/****************************************/
if(type == NOTIFICATION_DOWNTIMESTART || type == NOTIFICATION_DOWNTIMEEND || type == NOTIFICATION_DOWNTIMECANCELLED) {
if(cntct->notify_on_service_downtime == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "We shouldn't notify this contact about DOWNTIME service events.\n");
return ERROR;
}
return OK;
}
/*************************************/
/*** ACKS AND NORMAL NOTIFICATIONS ***/
/*************************************/
/* see if we should notify about problems with this service */
if(svc->current_state == STATE_UNKNOWN && cntct->notify_on_service_unknown == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "We shouldn't notify this contact about UNKNOWN service states.\n");
return ERROR;
}
if(svc->current_state == STATE_WARNING && cntct->notify_on_service_warning == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "We shouldn't notify this contact about WARNING service states.\n");
return ERROR;
}
if(svc->current_state == STATE_CRITICAL && cntct->notify_on_service_critical == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "We shouldn't notify this contact about CRITICAL service states.\n");
return ERROR;
}
if(svc->current_state == STATE_OK) {
if(cntct->notify_on_service_recovery == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "We shouldn't notify this contact about RECOVERY service states.\n");
return ERROR;
}
if(!((svc->notified_on_unknown == TRUE && cntct->notify_on_service_unknown == TRUE) || (svc->notified_on_warning == TRUE && cntct->notify_on_service_warning == TRUE) || (svc->notified_on_critical == TRUE && cntct->notify_on_service_critical == TRUE))) {
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "We shouldn't notify about this recovery.\n");
return ERROR;
}
}
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "** Service notification viability for contact '%s' PASSED.\n", cntct->name);
return OK;
}
/* notify a specific contact about a service problem or recovery */
int notify_contact_of_service(nagios_macros *mac, contact *cntct, service *svc, int type, char *not_author, char *not_data, int options, int escalated) {
commandsmember *temp_commandsmember = NULL;
char *command_name = NULL;
char *command_name_ptr = NULL;
char *raw_command = NULL;
char *processed_command = NULL;
char *temp_buffer = NULL;
char *processed_buffer = NULL;
int early_timeout = FALSE;
double exectime;
struct timeval start_time, end_time;
struct timeval method_start_time, method_end_time;
int macro_options = STRIP_ILLEGAL_MACRO_CHARS | ESCAPE_MACRO_CHARS;
int neb_result;
log_debug_info(DEBUGL_FUNCTIONS, 0, "notify_contact_of_service()\n");
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "** Notifying contact '%s'\n", cntct->name);
/* get start time */
gettimeofday(&start_time, NULL);
#ifdef USE_EVENT_BROKER
/* send data to event broker */
end_time.tv_sec = 0L;
end_time.tv_usec = 0L;
neb_result = broker_contact_notification_data(NEBTYPE_CONTACTNOTIFICATION_START, NEBFLAG_NONE, NEBATTR_NONE, SERVICE_NOTIFICATION, type, start_time, end_time, (void *)svc, cntct, not_author, not_data, escalated, NULL);
if(NEBERROR_CALLBACKCANCEL == neb_result)
return ERROR;
else if(NEBERROR_CALLBACKOVERRIDE == neb_result)
return OK;
#endif
/* process all the notification commands this user has */
for(temp_commandsmember = cntct->service_notification_commands; temp_commandsmember != NULL; temp_commandsmember = temp_commandsmember->next) {
/* get start time */
gettimeofday(&method_start_time, NULL);
#ifdef USE_EVENT_BROKER
/* send data to event broker */
method_end_time.tv_sec = 0L;
method_end_time.tv_usec = 0L;
neb_result = broker_contact_notification_method_data(NEBTYPE_CONTACTNOTIFICATIONMETHOD_START, NEBFLAG_NONE, NEBATTR_NONE, SERVICE_NOTIFICATION, type, method_start_time, method_end_time, (void *)svc, cntct, temp_commandsmember->command, not_author, not_data, escalated, NULL);
if(NEBERROR_CALLBACKCANCEL == neb_result)
break ;
else if(NEBERROR_CALLBACKOVERRIDE == neb_result)
continue ;
#endif
/* get the raw command line */
get_raw_command_line_r(mac, temp_commandsmember->command_ptr, temp_commandsmember->command, &raw_command, macro_options);
if(raw_command == NULL)
continue;
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Raw notification command: %s\n", raw_command);
/* process any macros contained in the argument */
process_macros_r(mac, raw_command, &processed_command, macro_options);
my_free(raw_command);
if(processed_command == NULL)
continue;
/* get the command name */
command_name = (char *)strdup(temp_commandsmember->command);
command_name_ptr = strtok(command_name, "!");
/* run the notification command... */
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Processed notification command: %s\n", processed_command);
/* log the notification to program log file */
if(log_notifications == TRUE) {
switch(type) {
case NOTIFICATION_CUSTOM:
asprintf(&temp_buffer, "SERVICE NOTIFICATION: %s;%s;%s;CUSTOM ($SERVICESTATE$);%s;$SERVICEOUTPUT$;$NOTIFICATIONAUTHOR$;$NOTIFICATIONCOMMENT$\n", cntct->name, svc->host_name, svc->description, command_name_ptr);
break;
case NOTIFICATION_ACKNOWLEDGEMENT:
asprintf(&temp_buffer, "SERVICE NOTIFICATION: %s;%s;%s;ACKNOWLEDGEMENT ($SERVICESTATE$);%s;$SERVICEOUTPUT$;$NOTIFICATIONAUTHOR$;$NOTIFICATIONCOMMENT$\n", cntct->name, svc->host_name, svc->description, command_name_ptr);
break;
case NOTIFICATION_FLAPPINGSTART:
asprintf(&temp_buffer, "SERVICE NOTIFICATION: %s;%s;%s;FLAPPINGSTART ($SERVICESTATE$);%s;$SERVICEOUTPUT$\n", cntct->name, svc->host_name, svc->description, command_name_ptr);
break;
case NOTIFICATION_FLAPPINGSTOP:
asprintf(&temp_buffer, "SERVICE NOTIFICATION: %s;%s;%s;FLAPPINGSTOP ($SERVICESTATE$);%s;$SERVICEOUTPUT$\n", cntct->name, svc->host_name, svc->description, command_name_ptr);
break;
case NOTIFICATION_FLAPPINGDISABLED:
asprintf(&temp_buffer, "SERVICE NOTIFICATION: %s;%s;%s;FLAPPINGDISABLED ($SERVICESTATE$);%s;$SERVICEOUTPUT$\n", cntct->name, svc->host_name, svc->description, command_name_ptr);
break;
case NOTIFICATION_DOWNTIMESTART:
asprintf(&temp_buffer, "SERVICE NOTIFICATION: %s;%s;%s;DOWNTIMESTART ($SERVICESTATE$);%s;$SERVICEOUTPUT$\n", cntct->name, svc->host_name, svc->description, command_name_ptr);
break;
case NOTIFICATION_DOWNTIMEEND:
asprintf(&temp_buffer, "SERVICE NOTIFICATION: %s;%s;%s;DOWNTIMEEND ($SERVICESTATE$);%s;$SERVICEOUTPUT$\n", cntct->name, svc->host_name, svc->description, command_name_ptr);
break;
case NOTIFICATION_DOWNTIMECANCELLED:
asprintf(&temp_buffer, "SERVICE NOTIFICATION: %s;%s;%s;DOWNTIMECANCELLED ($SERVICESTATE$);%s;$SERVICEOUTPUT$\n", cntct->name, svc->host_name, svc->description, command_name_ptr);
break;
default:
asprintf(&temp_buffer, "SERVICE NOTIFICATION: %s;%s;%s;$SERVICESTATE$;%s;$SERVICEOUTPUT$\n", cntct->name, svc->host_name, svc->description, command_name_ptr);
break;
}
process_macros_r(mac, temp_buffer, &processed_buffer, 0);
write_to_all_logs(processed_buffer, NSLOG_SERVICE_NOTIFICATION);
my_free(temp_buffer);
my_free(processed_buffer);
}
/* run the notification command */
my_system_r(mac, processed_command, notification_timeout, &early_timeout, &exectime, NULL, 0);
/* check to see if the notification command timed out */
if(early_timeout == TRUE) {
logit(NSLOG_SERVICE_NOTIFICATION | NSLOG_RUNTIME_WARNING, TRUE, "Warning: Contact '%s' service notification command '%s' timed out after %d seconds\n", cntct->name, processed_command, notification_timeout);
}
/* free memory */
my_free(command_name);
my_free(processed_command);
/* get end time */
gettimeofday(&method_end_time, NULL);
#ifdef USE_EVENT_BROKER
/* send data to event broker */
broker_contact_notification_method_data(NEBTYPE_CONTACTNOTIFICATIONMETHOD_END, NEBFLAG_NONE, NEBATTR_NONE, SERVICE_NOTIFICATION, type, method_start_time, method_end_time, (void *)svc, cntct, temp_commandsmember->command, not_author, not_data, escalated, NULL);
#endif
}
/* get end time */
gettimeofday(&end_time, NULL);
/* update the contact's last service notification time */
cntct->last_service_notification = start_time.tv_sec;
#ifdef USE_EVENT_BROKER
/* send data to event broker */
broker_contact_notification_data(NEBTYPE_CONTACTNOTIFICATION_END, NEBFLAG_NONE, NEBATTR_NONE, SERVICE_NOTIFICATION, type, start_time, end_time, (void *)svc, cntct, not_author, not_data, escalated, NULL);
#endif
return OK;
}
/* checks to see if a service escalation entry is a match for the current service notification */
int is_valid_escalation_for_service_notification(service *svc, serviceescalation *se, int options) {
int notification_number = 0;
time_t current_time = 0L;
service *temp_service = NULL;
log_debug_info(DEBUGL_FUNCTIONS, 0, "is_valid_escalation_for_service_notification()\n");
/* get the current time */
time(&current_time);
/* if this is a recovery, really we check for who got notified about a previous problem */
if(svc->current_state == STATE_OK)
notification_number = svc->current_notification_number - 1;
else
notification_number = svc->current_notification_number;
/* this entry if it is not for this service */
temp_service = se->service_ptr;
if(temp_service == NULL || temp_service != svc)
return FALSE;
/*** EXCEPTION ***/
/* broadcast options go to everyone, so this escalation is valid */
if(options & NOTIFICATION_OPTION_BROADCAST)
return TRUE;
/* skip this escalation if it happens later */
if(se->first_notification > notification_number)
return FALSE;
/* skip this escalation if it has already passed */
if(se->last_notification != 0 && se->last_notification < notification_number)
return FALSE;
/* skip this escalation if it has a timeperiod and the current time isn't valid */
if(se->escalation_period != NULL && check_time_against_period(current_time, se->escalation_period_ptr) == ERROR)
return FALSE;
/* skip this escalation if the state options don't match */
if(svc->current_state == STATE_OK && se->escalate_on_recovery == FALSE)
return FALSE;
else if(svc->current_state == STATE_WARNING && se->escalate_on_warning == FALSE)
return FALSE;
else if(svc->current_state == STATE_UNKNOWN && se->escalate_on_unknown == FALSE)
return FALSE;
else if(svc->current_state == STATE_CRITICAL && se->escalate_on_critical == FALSE)
return FALSE;
return TRUE;
}
/* checks to see whether a service notification should be escalation */
int should_service_notification_be_escalated(service *svc) {
serviceescalation *temp_se = NULL;
void *ptr = NULL;
log_debug_info(DEBUGL_FUNCTIONS, 0, "should_service_notification_be_escalated()\n");
/* search the service escalation list */
for(temp_se = get_first_serviceescalation_by_service(svc->host_name, svc->description, &ptr); temp_se != NULL; temp_se = get_next_serviceescalation_by_service(svc->host_name, svc->description, &ptr)) {
/* we found a matching entry, so escalate this notification! */
if(is_valid_escalation_for_service_notification(svc, temp_se, NOTIFICATION_OPTION_NONE) == TRUE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Service notification WILL be escalated.\n");
return TRUE;
}
}
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Service notification will NOT be escalated.\n");
return FALSE;
}
/* given a service, create a list of contacts to be notified, removing duplicates, checking contact notification viability */
int create_notification_list_from_service(nagios_macros *mac, service *svc, int options, int *escalated, int type) {
serviceescalation *temp_se = NULL;
contactsmember *temp_contactsmember = NULL;
contact *temp_contact = NULL;
contactgroupsmember *temp_contactgroupsmember = NULL;
contactgroup *temp_contactgroup = NULL;
int escalate_notification = FALSE;
void *ptr = NULL;
log_debug_info(DEBUGL_FUNCTIONS, 0, "create_notification_list_from_service()\n");
/* see if this notification should be escalated */
escalate_notification = should_service_notification_be_escalated(svc);
/* set the escalation flag */
*escalated = escalate_notification;
/* make sure there aren't any leftover contacts */
free_notification_list();
/* set the escalation macro */
mac->x[MACRO_NOTIFICATIONISESCALATED] = strdup(escalate_notification ? "1" : "0");
if(options & NOTIFICATION_OPTION_BROADCAST)
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "This notification will be BROADCAST to all (escalated and normal) contacts...\n");
/* use escalated contacts for this notification */
if(escalate_notification == TRUE || (options & NOTIFICATION_OPTION_BROADCAST)) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Adding contacts from service escalation(s) to notification list.\n");
/* search all the escalation entries for valid matches */
for(temp_se = get_first_serviceescalation_by_service(svc->host_name, svc->description, &ptr); temp_se != NULL; temp_se = get_next_serviceescalation_by_service(svc->host_name, svc->description, &ptr)) {
/* skip this entry if it isn't appropriate */
if(is_valid_escalation_for_service_notification(svc, temp_se, options) == FALSE)
continue;
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Adding individual contacts from service escalation(s) to notification list.\n");
/* add all individual contacts for this escalation entry */
for(temp_contactsmember = temp_se->contacts; temp_contactsmember != NULL; temp_contactsmember = temp_contactsmember->next) {
if((temp_contact = temp_contactsmember->contact_ptr) == NULL)
continue;
/* check now if the contact can be notified */
if(check_contact_service_notification_viability(temp_contact, svc, type, options) == OK)
add_notification(mac, temp_contact);
else
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Not adding contact '%s'\n", temp_contact->name);
}
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Adding members of contact groups from service escalation(s) to notification list.\n");
/* add all contacts that belong to contactgroups for this escalation */
for(temp_contactgroupsmember = temp_se->contact_groups; temp_contactgroupsmember != NULL; temp_contactgroupsmember = temp_contactgroupsmember->next) {
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Adding members of contact group '%s' for service escalation to notification list.\n", temp_contactgroupsmember->group_name);
if((temp_contactgroup = temp_contactgroupsmember->group_ptr) == NULL)
continue;
for(temp_contactsmember = temp_contactgroup->members; temp_contactsmember != NULL; temp_contactsmember = temp_contactsmember->next) {
if((temp_contact = temp_contactsmember->contact_ptr) == NULL)
continue;
/* check now if the contact can be notified */
if(check_contact_service_notification_viability(temp_contact, svc, type, options) == OK)
add_notification(mac, temp_contact);
else
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Not adding contact '%s'\n", temp_contact->name);
}
}
}
}
/* else use normal, non-escalated contacts */
if(escalate_notification == FALSE || (options & NOTIFICATION_OPTION_BROADCAST)) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Adding normal contacts for service to notification list.\n");
/* add all individual contacts for this service */
for(temp_contactsmember = svc->contacts; temp_contactsmember != NULL; temp_contactsmember = temp_contactsmember->next) {
if((temp_contact = temp_contactsmember->contact_ptr) == NULL)
continue;
/* check now if the contact can be notified */
if(check_contact_service_notification_viability(temp_contact, svc, type, options) == OK)
add_notification(mac, temp_contact);
else
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Not adding contact '%s'\n", temp_contact->name);
}
/* add all contacts that belong to contactgroups for this service */
for(temp_contactgroupsmember = svc->contact_groups; temp_contactgroupsmember != NULL; temp_contactgroupsmember = temp_contactgroupsmember->next) {
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Adding members of contact group '%s' for service to notification list.\n", temp_contactgroupsmember->group_name);
if((temp_contactgroup = temp_contactgroupsmember->group_ptr) == NULL)
continue;
for(temp_contactsmember = temp_contactgroup->members; temp_contactsmember != NULL; temp_contactsmember = temp_contactsmember->next) {
if((temp_contact = temp_contactsmember->contact_ptr) == NULL)
continue;
/* check now if the contact can be notified */
if(check_contact_service_notification_viability(temp_contact, svc, type, options) == OK)
add_notification(mac, temp_contact);
else
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Not adding contact '%s'\n", temp_contact->name);
}
}
}
return OK;
}
/******************************************************************/
/******************* HOST NOTIFICATION FUNCTIONS ******************/
/******************************************************************/
/* notify all contacts for a host that the entire host is down or up */
int host_notification(host *hst, int type, char *not_author, char *not_data, int options) {
notification *temp_notification = NULL;
contact *temp_contact = NULL;
time_t current_time;
struct timeval start_time;
struct timeval end_time;
int escalated = FALSE;
int result = OK;
int contacts_notified = 0;
int increment_notification_number = FALSE;
nagios_macros mac;
int neb_result;
/* get the current time */
time(&current_time);
gettimeofday(&start_time, NULL);
log_debug_info(DEBUGL_NOTIFICATIONS, 0, "** Host Notification Attempt ** Host: '%s', Type: %d, Options: %d, Current State: %d, Last Notification: %s", hst->name, type, options, hst->current_state, ctime(&hst->last_host_notification));
/* check viability of sending out a host notification */
if(check_host_notification_viability(hst, type, options) == ERROR) {
log_debug_info(DEBUGL_NOTIFICATIONS, 0, "Notification viability test failed. No notification will be sent out.\n");
return OK;
}
log_debug_info(DEBUGL_NOTIFICATIONS, 0, "Notification viability test passed.\n");
/* should the notification number be increased? */
if(type == NOTIFICATION_NORMAL || (options & NOTIFICATION_OPTION_INCREMENT)) {
hst->current_notification_number++;
increment_notification_number = TRUE;
}
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Current notification number: %d (%s)\n", hst->current_notification_number, (increment_notification_number == TRUE) ? "incremented" : "unchanged");
/* save and increase the current notification id */
hst->current_notification_id = next_notification_id;
next_notification_id++;
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Creating list of contacts to be notified.\n");
#ifdef USE_EVENT_BROKER
/* send data to event broker */
end_time.tv_sec = 0L;
end_time.tv_usec = 0L;
neb_result = broker_notification_data(NEBTYPE_NOTIFICATION_START, NEBFLAG_NONE, NEBATTR_NONE, HOST_NOTIFICATION, type, start_time, end_time, (void *)hst, not_author, not_data, escalated, 0, NULL);
if(NEBERROR_CALLBACKCANCEL == neb_result) {
free_notification_list();
return ERROR;
}
else if(NEBERROR_CALLBACKOVERRIDE == neb_result) {
free_notification_list();
return OK;
}
#endif
/* reset memory for local macro data */
memset(&mac, 0, sizeof(mac));
/* 2011-11-01 MF:
check viability before adding a contact
to the notification list, requires type
this prevents us from running through all
the steps until notify_contact_of_host|service
is reached. furthermore the $NOTIFICATIONRECIPIENTS$
macro only gets populated with actual recipients,
not all contacts assigned to that host|service.
note: checks against timeperiod will happen now(),
and not when the notification is actually being sent.
original patch by Opsview Team
*/
create_notification_list_from_host(&mac, hst, options, &escalated, type);
/* XXX: crazy indent */
/* there are contacts to be notified... */
if(notification_list != NULL) {
/* grab the macro variables */
grab_host_macros_r(&mac, hst);
/* if this notification has an author, attempt to lookup the associated contact */
if(not_author != NULL) {
/* see if we can find the contact - first by name, then by alias */
if((temp_contact = find_contact(not_author)) == NULL) {
for(temp_contact = contact_list; temp_contact != NULL; temp_contact = temp_contact->next) {
if(!strcmp(temp_contact->alias, not_author))
break;
}
}
}
/* get author and comment macros */
if(not_author)
mac.x[MACRO_NOTIFICATIONAUTHOR] = strdup(not_author);
if(temp_contact != NULL) {
mac.x[MACRO_NOTIFICATIONAUTHORNAME] = strdup(temp_contact->name);
mac.x[MACRO_NOTIFICATIONAUTHORALIAS] = strdup(temp_contact->alias);
}
if(not_data)
mac.x[MACRO_NOTIFICATIONCOMMENT] = strdup(not_data);
/* NOTE: these macros are deprecated and will likely disappear in Nagios 4.x */
/* if this is an acknowledgement, get author and comment macros */
if(type == NOTIFICATION_ACKNOWLEDGEMENT) {
if(not_author)
mac.x[MACRO_HOSTACKAUTHOR] = strdup(not_author);
if(not_data)
mac.x[MACRO_HOSTACKCOMMENT] = strdup(not_data);
if(temp_contact != NULL) {
mac.x[MACRO_HOSTACKAUTHORNAME] = strdup(temp_contact->name);
mac.x[MACRO_HOSTACKAUTHORALIAS] = strdup(temp_contact->alias);
}
}
/* set the notification type macro */
if(type == NOTIFICATION_ACKNOWLEDGEMENT)
mac.x[MACRO_NOTIFICATIONTYPE] = "ACKNOWLEDGEMENT";
else if(type == NOTIFICATION_FLAPPINGSTART)
mac.x[MACRO_NOTIFICATIONTYPE] = "FLAPPINGSTART";
else if(type == NOTIFICATION_FLAPPINGSTOP)
mac.x[MACRO_NOTIFICATIONTYPE] = "FLAPPINGSTOP";
else if(type == NOTIFICATION_FLAPPINGDISABLED)
mac.x[MACRO_NOTIFICATIONTYPE] = "FLAPPINGDISABLED";
else if(type == NOTIFICATION_DOWNTIMESTART)
mac.x[MACRO_NOTIFICATIONTYPE] = "DOWNTIMESTART";
else if(type == NOTIFICATION_DOWNTIMEEND)
mac.x[MACRO_NOTIFICATIONTYPE] = "DOWNTIMEEND";
else if(type == NOTIFICATION_DOWNTIMECANCELLED)
mac.x[MACRO_NOTIFICATIONTYPE] = "DOWNTIMECANCELLED";
else if(type == NOTIFICATION_CUSTOM)
mac.x[MACRO_NOTIFICATIONTYPE] = "CUSTOM";
else if(hst->current_state == HOST_UP)
mac.x[MACRO_NOTIFICATIONTYPE] = "RECOVERY";
else
mac.x[MACRO_NOTIFICATIONTYPE] = "PROBLEM";
mac.x[MACRO_NOTIFICATIONTYPE] = strdup(mac.x[MACRO_NOTIFICATIONTYPE]);
/* set the notification number macro */
asprintf(&mac.x[MACRO_HOSTNOTIFICATIONNUMBER], "%d", hst->current_notification_number);
/* the $NOTIFICATIONNUMBER$ macro is maintained for backward compatability */
mac.x[MACRO_NOTIFICATIONNUMBER] = strdup(mac.x[MACRO_HOSTNOTIFICATIONNUMBER]);
/* set the notification id macro */
asprintf(&mac.x[MACRO_HOSTNOTIFICATIONID], "%lu", hst->current_notification_id);
/* notify each contact (duplicates have been removed) */
for(temp_notification = notification_list; temp_notification != NULL; temp_notification = temp_notification->next) {
/* grab the macro variables for this contact */
grab_contact_macros_r(&mac, temp_notification->contact);
/* clear summary macros (they are customized for each contact) */
clear_summary_macros_r(&mac);
/* notify this contact */
result = notify_contact_of_host(&mac, temp_notification->contact, hst, type, not_author, not_data, options, escalated);
/* keep track of how many contacts were notified */
if(result == OK)
contacts_notified++;
}
/* free memory allocated to the notification list */
free_notification_list();
/* clear out all macros we created */
my_free(mac.x[MACRO_HOSTNOTIFICATIONID]);
my_free(mac.x[MACRO_NOTIFICATIONNUMBER]);
my_free(mac.x[MACRO_NOTIFICATIONCOMMENT]);
my_free(mac.x[MACRO_HOSTNOTIFICATIONNUMBER]);
my_free(mac.x[MACRO_NOTIFICATIONTYPE]);
my_free(mac.x[MACRO_NOTIFICATIONAUTHOR]);
my_free(mac.x[MACRO_NOTIFICATIONAUTHORNAME]);
my_free(mac.x[MACRO_NOTIFICATIONAUTHORALIAS]);
my_free(mac.x[MACRO_HOSTACKAUTHORNAME]);
my_free(mac.x[MACRO_HOSTACKAUTHORALIAS]);
my_free(mac.x[MACRO_HOSTACKAUTHOR]);
my_free(mac.x[MACRO_HOSTACKCOMMENT]);
/* this gets set in add_notification() */
my_free(mac.x[MACRO_NOTIFICATIONRECIPIENTS]);
/*
* Clear all macros, or they will linger in memory
* now that we're done with the notifications.
*/
clear_summary_macros_r(&mac);
clear_contact_macros_r(&mac);
clear_argv_macros_r(&mac);
clear_host_macros_r(&mac);
if(type == NOTIFICATION_NORMAL) {
/* adjust last/next notification time and notification flags if we notified someone */
if(contacts_notified > 0) {
/* calculate the next acceptable re-notification time */
hst->next_host_notification = get_next_host_notification_time(hst, current_time);
/* update the last notification time for this host (this is needed for scheduling the next problem notification) */
hst->last_host_notification = current_time;
/* update notifications flags */
if(hst->current_state == HOST_DOWN)
hst->notified_on_down = TRUE;
else if(hst->current_state == HOST_UNREACHABLE)
hst->notified_on_unreachable = TRUE;
log_debug_info(DEBUGL_NOTIFICATIONS, 0, "%d contacts were notified. Next possible notification time: %s", contacts_notified, ctime(&hst->next_host_notification));
}
/* we didn't end up notifying anyone */
else if(increment_notification_number == TRUE) {
/* adjust current notification number */
hst->current_notification_number--;
log_debug_info(DEBUGL_NOTIFICATIONS, 0, "No contacts were notified. Next possible notification time: %s", ctime(&hst->next_host_notification));
}
}
log_debug_info(DEBUGL_NOTIFICATIONS, 0, "%d contacts were notified.\n", contacts_notified);
}
/* there were no contacts, so no notification really occurred... */
else {
/* adjust notification number, since no notification actually went out */
if(increment_notification_number == TRUE)
hst->current_notification_number--;
log_debug_info(DEBUGL_NOTIFICATIONS, 0, "No contacts were found for notification purposes. No notification was sent out.\n");
}
/* this gets set in create_notification_list_from_host() */
my_free(mac.x[MACRO_NOTIFICATIONISESCALATED]);
/* get the time we finished */
gettimeofday(&end_time, NULL);
#ifdef USE_EVENT_BROKER
/* send data to event broker */
broker_notification_data(NEBTYPE_NOTIFICATION_END, NEBFLAG_NONE, NEBATTR_NONE, HOST_NOTIFICATION, type, start_time, end_time, (void *)hst, not_author, not_data, escalated, contacts_notified, NULL);
#endif
/* update the status log with the host info */
update_host_status(hst, FALSE);
return OK;
}
/* checks viability of sending a host notification */
int check_host_notification_viability(host *hst, int type, int options) {
time_t current_time;
time_t timeperiod_start;
time_t first_problem_time;
log_debug_info(DEBUGL_FUNCTIONS, 0, "check_host_notification_viability()\n");
/* forced notifications bust through everything */
if(options & NOTIFICATION_OPTION_FORCED) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "This is a forced host notification, so we'll send it out.\n");
return OK;
}
/* get current time */
time(&current_time);
/* are notifications enabled? */
if(enable_notifications == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Notifications are disabled, so host notifications will not be sent out.\n");
return ERROR;
}
/* see if the host can have notifications sent out at this time */
if(check_time_against_period(current_time, hst->notification_period_ptr) == ERROR) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "This host shouldn't have notifications sent out at this time.\n");
/* if this is a normal notification, calculate the next acceptable notification time, once the next valid time range arrives... */
if(type == NOTIFICATION_NORMAL) {
get_next_valid_time(current_time, &timeperiod_start, hst->notification_period_ptr);
/* it looks like there is no notification time defined, so schedule next one far into the future (one year)... */
if(timeperiod_start == (time_t)0)
hst->next_host_notification = (time_t)(current_time + (60 * 60 * 24 * 365));
/* else use the next valid notification time */
else
hst->next_host_notification = timeperiod_start;
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Next possible notification time: %s\n", ctime(&hst->next_host_notification));
}
return ERROR;
}
/* are notifications temporarily disabled for this host? */
if(hst->notifications_enabled == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Notifications are temporarily disabled for this host, so we won't send one out.\n");
return ERROR;
}
/*********************************************/
/*** SPECIAL CASE FOR CUSTOM NOTIFICATIONS ***/
/*********************************************/
/* custom notifications are good to go at this point... */
if(type == NOTIFICATION_CUSTOM) {
if(hst->scheduled_downtime_depth > 0) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "We shouldn't send custom notification during scheduled downtime.\n");
return ERROR;
}
return OK;
}
/****************************************/
/*** SPECIAL CASE FOR ACKNOWLEGEMENTS ***/
/****************************************/
/* acknowledgements only have to pass three general filters, although they have another test of their own... */
if(type == NOTIFICATION_ACKNOWLEDGEMENT) {
/* don't send an acknowledgement if there isn't a problem... */
if(hst->current_state == HOST_UP) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "The host is currently UP, so we won't send an acknowledgement.\n");
return ERROR;
}
/* acknowledgement viability test passed, so the notification can be sent out */
return OK;
}
/*****************************************/
/*** SPECIAL CASE FOR FLAPPING ALERTS ***/
/*****************************************/
/* flapping notifications only have to pass three general filters */
if(type == NOTIFICATION_FLAPPINGSTART || type == NOTIFICATION_FLAPPINGSTOP || type == NOTIFICATION_FLAPPINGDISABLED) {
/* don't send a notification if we're not supposed to... */
if(hst->notify_on_flapping == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "We shouldn't notify about FLAPPING events for this host.\n");
return ERROR;
}
/* don't send notifications during scheduled downtime */
if(hst->scheduled_downtime_depth > 0) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "We shouldn't notify about FLAPPING events during scheduled downtime.\n");
return ERROR;
}
/* flapping viability test passed, so the notification can be sent out */
return OK;
}
/*****************************************/
/*** SPECIAL CASE FOR DOWNTIME ALERTS ***/
/*****************************************/
/* flapping notifications only have to pass three general filters */
if(type == NOTIFICATION_DOWNTIMESTART || type == NOTIFICATION_DOWNTIMEEND || type == NOTIFICATION_DOWNTIMECANCELLED) {
/* don't send a notification if we're not supposed to... */
if(hst->notify_on_downtime == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "We shouldn't notify about DOWNTIME events for this host.\n");
return ERROR;
}
/* don't send notifications during scheduled downtime */
if(hst->scheduled_downtime_depth > 0) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "We shouldn't notify about DOWNTIME events during scheduled downtime!\n");
return ERROR;
}
/* downtime viability test passed, so the notification can be sent out */
return OK;
}
/****************************************/
/*** NORMAL NOTIFICATIONS ***************/
/****************************************/
/* is this a hard problem/recovery? */
if(hst->state_type == SOFT_STATE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "This host is in a soft state, so we won't send a notification out.\n");
return ERROR;
}
/* has this problem already been acknowledged? */
if(hst->problem_has_been_acknowledged == TRUE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "This host problem has already been acknowledged, so we won't send a notification out!\n");
return ERROR;
}
/* check notification dependencies */
if(check_host_dependencies(hst, NOTIFICATION_DEPENDENCY) == DEPENDENCIES_FAILED) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Notification dependencies for this host have failed, so we won't sent a notification out!\n");
return ERROR;
}
/* see if we should notify about problems with this host */
if(hst->current_state == HOST_UNREACHABLE && hst->notify_on_unreachable == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "We shouldn't notify about UNREACHABLE status for this host.\n");
return ERROR;
}
if(hst->current_state == HOST_DOWN && hst->notify_on_down == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "We shouldn't notify about DOWN states for this host.\n");
return ERROR;
}
if(hst->current_state == HOST_UP) {
if(hst->notify_on_recovery == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "We shouldn't notify about RECOVERY states for this host.\n");
return ERROR;
}
if(!(hst->notified_on_down == TRUE || hst->notified_on_unreachable == TRUE)) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "We shouldn't notify about this recovery.\n");
return ERROR;
}
}
/* see if enough time has elapsed for first notification (Mathias Sundman) */
/* 10/02/07 don't place restrictions on recoveries or non-normal notifications, must use last time up (or program start) in calculation */
/* it is reasonable to assume that if the host was never up, the program start time should be used in this calculation */
if(type == NOTIFICATION_NORMAL && hst->current_notification_number == 0 && hst->current_state != HOST_UP) {
/* determine the time to use of the first problem point */
first_problem_time = hst->last_time_up; /* not accurate, but its the earliest time we could use in the comparison */
if((hst->last_time_down < first_problem_time) && (hst->last_time_down > hst->last_time_up))
first_problem_time = hst->last_time_down;
if((hst->last_time_unreachable < first_problem_time) && (hst->last_time_unreachable > hst->last_time_unreachable))
first_problem_time = hst->last_time_unreachable;
if(current_time < (time_t)((first_problem_time == (time_t)0L) ? program_start : first_problem_time) + (time_t)(hst->first_notification_delay * interval_length)) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Not enough time has elapsed since the host changed to a non-UP state (or since program start), so we shouldn't notify about this problem yet.\n");
return ERROR;
}
}
/* if this host is currently flapping, don't send the notification */
if(hst->is_flapping == TRUE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "This host is currently flapping, so we won't send notifications.\n");
return ERROR;
}
/***** RECOVERY NOTIFICATIONS ARE GOOD TO GO AT THIS POINT *****/
if(hst->current_state == HOST_UP)
return OK;
/* if this host is currently in a scheduled downtime period, don't send the notification */
if(hst->scheduled_downtime_depth > 0) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "This host is currently in a scheduled downtime, so we won't send notifications.\n");
return ERROR;
}
/* check if we shouldn't renotify contacts about the host problem */
if(hst->no_more_notifications == TRUE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "We shouldn't re-notify contacts about this host problem.\n");
return ERROR;
}
/* check if its time to re-notify the contacts about the host... */
if(current_time < hst->next_host_notification) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Its not yet time to re-notify the contacts about this host problem...\n");
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Next acceptable notification time: %s", ctime(&hst->next_host_notification));
return ERROR;
}
return OK;
}
/* checks the viability of notifying a specific contact about a host */
int check_contact_host_notification_viability(contact *cntct, host *hst, int type, int options) {
log_debug_info(DEBUGL_FUNCTIONS, 0, "check_contact_host_notification_viability()\n");
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "** Checking host notification viability for contact '%s'...\n", cntct->name);
/* forced notifications bust through everything */
if(options & NOTIFICATION_OPTION_FORCED) {
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "This is a forced host notification, so we'll send it out for this contact.\n");
return OK;
}
/* are notifications enabled? */
if(cntct->host_notifications_enabled == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Host notifications are disabled for this contact.\n");
return ERROR;
}
/* see if the contact can be notified at this time */
if(check_time_against_period(time(NULL), cntct->host_notification_period_ptr) == ERROR) {
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "This contact shouldn't be notified at this time.\n");
return ERROR;
}
/*********************************************/
/*** SPECIAL CASE FOR CUSTOM NOTIFICATIONS ***/
/*********************************************/
/* custom notifications are good to go at this point... */
if(type == NOTIFICATION_CUSTOM)
return OK;
/****************************************/
/*** SPECIAL CASE FOR FLAPPING ALERTS ***/
/****************************************/
if(type == NOTIFICATION_FLAPPINGSTART || type == NOTIFICATION_FLAPPINGSTOP || type == NOTIFICATION_FLAPPINGDISABLED) {
if(cntct->notify_on_host_flapping == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "We shouldn't notify this contact about FLAPPING host events.\n");
return ERROR;
}
return OK;
}
/****************************************/
/*** SPECIAL CASE FOR DOWNTIME ALERTS ***/
/****************************************/
if(type == NOTIFICATION_DOWNTIMESTART || type == NOTIFICATION_DOWNTIMEEND || type == NOTIFICATION_DOWNTIMECANCELLED) {
if(cntct->notify_on_host_downtime == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "We shouldn't notify this contact about DOWNTIME host events.\n");
return ERROR;
}
return OK;
}
/*************************************/
/*** ACKS AND NORMAL NOTIFICATIONS ***/
/*************************************/
/* see if we should notify about problems with this host */
if(hst->current_state == HOST_DOWN && cntct->notify_on_host_down == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "We shouldn't notify this contact about DOWN states.\n");
return ERROR;
}
if(hst->current_state == HOST_UNREACHABLE && cntct->notify_on_host_unreachable == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "We shouldn't notify this contact about UNREACHABLE states,\n");
return ERROR;
}
if(hst->current_state == HOST_UP) {
if(cntct->notify_on_host_recovery == FALSE) {
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "We shouldn't notify this contact about RECOVERY states.\n");
return ERROR;
}
if(!((hst->notified_on_down == TRUE && cntct->notify_on_host_down == TRUE) || (hst->notified_on_unreachable == TRUE && cntct->notify_on_host_unreachable == TRUE))) {
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "We shouldn't notify about this recovery.\n");
return ERROR;
}
}
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "** Host notification viability for contact '%s' PASSED.\n", cntct->name);
return OK;
}
/* notify a specific contact that an entire host is down or up */
int notify_contact_of_host(nagios_macros *mac, contact *cntct, host *hst, int type, char *not_author, char *not_data, int options, int escalated) {
commandsmember *temp_commandsmember = NULL;
char *command_name = NULL;
char *command_name_ptr = NULL;
char *temp_buffer = NULL;
char *processed_buffer = NULL;
char *raw_command = NULL;
char *processed_command = NULL;
int early_timeout = FALSE;
double exectime;
struct timeval start_time;
struct timeval end_time;
struct timeval method_start_time;
struct timeval method_end_time;
int macro_options = STRIP_ILLEGAL_MACRO_CHARS | ESCAPE_MACRO_CHARS;
int neb_result;
log_debug_info(DEBUGL_FUNCTIONS, 0, "notify_contact_of_host()\n");
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "** Notifying contact '%s'\n", cntct->name);
/* get start time */
gettimeofday(&start_time, NULL);
#ifdef USE_EVENT_BROKER
/* send data to event broker */
end_time.tv_sec = 0L;
end_time.tv_usec = 0L;
neb_result = broker_contact_notification_data(NEBTYPE_CONTACTNOTIFICATION_START, NEBFLAG_NONE, NEBATTR_NONE, HOST_NOTIFICATION, type, start_time, end_time, (void *)hst, cntct, not_author, not_data, escalated, NULL);
if(NEBERROR_CALLBACKCANCEL == neb_result)
return ERROR;
else if(NEBERROR_CALLBACKOVERRIDE == neb_result)
return OK;
#endif
/* process all the notification commands this user has */
for(temp_commandsmember = cntct->host_notification_commands; temp_commandsmember != NULL; temp_commandsmember = temp_commandsmember->next) {
/* get start time */
gettimeofday(&method_start_time, NULL);
#ifdef USE_EVENT_BROKER
/* send data to event broker */
method_end_time.tv_sec = 0L;
method_end_time.tv_usec = 0L;
neb_result = broker_contact_notification_method_data(NEBTYPE_CONTACTNOTIFICATIONMETHOD_START, NEBFLAG_NONE, NEBATTR_NONE, HOST_NOTIFICATION, type, method_start_time, method_end_time, (void *)hst, cntct, temp_commandsmember->command, not_author, not_data, escalated, NULL);
if(NEBERROR_CALLBACKCANCEL == neb_result)
break ;
else if(NEBERROR_CALLBACKOVERRIDE == neb_result)
continue ;
#endif
/* get the raw command line */
get_raw_command_line_r(mac, temp_commandsmember->command_ptr, temp_commandsmember->command, &raw_command, macro_options);
if(raw_command == NULL)
continue;
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Raw notification command: %s\n", raw_command);
/* process any macros contained in the argument */
process_macros_r(mac, raw_command, &processed_command, macro_options);
my_free(raw_command);
if(processed_command == NULL)
continue;
/* get the command name */
command_name = (char *)strdup(temp_commandsmember->command);
command_name_ptr = strtok(command_name, "!");
/* run the notification command... */
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Processed notification command: %s\n", processed_command);
/* log the notification to program log file */
if(log_notifications == TRUE) {
switch(type) {
case NOTIFICATION_CUSTOM:
asprintf(&temp_buffer, "HOST NOTIFICATION: %s;%s;CUSTOM ($HOSTSTATE$);%s;$HOSTOUTPUT$;$NOTIFICATIONAUTHOR$;$NOTIFICATIONCOMMENT$\n", cntct->name, hst->name, command_name_ptr);
break;
case NOTIFICATION_ACKNOWLEDGEMENT:
asprintf(&temp_buffer, "HOST NOTIFICATION: %s;%s;ACKNOWLEDGEMENT ($HOSTSTATE$);%s;$HOSTOUTPUT$;$NOTIFICATIONAUTHOR$;$NOTIFICATIONCOMMENT$\n", cntct->name, hst->name, command_name_ptr);
break;
case NOTIFICATION_FLAPPINGSTART:
asprintf(&temp_buffer, "HOST NOTIFICATION: %s;%s;FLAPPINGSTART ($HOSTSTATE$);%s;$HOSTOUTPUT$\n", cntct->name, hst->name, command_name_ptr);
break;
case NOTIFICATION_FLAPPINGSTOP:
asprintf(&temp_buffer, "HOST NOTIFICATION: %s;%s;FLAPPINGSTOP ($HOSTSTATE$);%s;$HOSTOUTPUT$\n", cntct->name, hst->name, command_name_ptr);
break;
case NOTIFICATION_FLAPPINGDISABLED:
asprintf(&temp_buffer, "HOST NOTIFICATION: %s;%s;FLAPPINGDISABLED ($HOSTSTATE$);%s;$HOSTOUTPUT$\n", cntct->name, hst->name, command_name_ptr);
break;
case NOTIFICATION_DOWNTIMESTART:
asprintf(&temp_buffer, "HOST NOTIFICATION: %s;%s;DOWNTIMESTART ($HOSTSTATE$);%s;$HOSTOUTPUT$\n", cntct->name, hst->name, command_name_ptr);
break;
case NOTIFICATION_DOWNTIMEEND:
asprintf(&temp_buffer, "HOST NOTIFICATION: %s;%s;DOWNTIMEEND ($HOSTSTATE$);%s;$HOSTOUTPUT$\n", cntct->name, hst->name, command_name_ptr);
break;
case NOTIFICATION_DOWNTIMECANCELLED:
asprintf(&temp_buffer, "HOST NOTIFICATION: %s;%s;DOWNTIMECANCELLED ($HOSTSTATE$);%s;$HOSTOUTPUT$\n", cntct->name, hst->name, command_name_ptr);
break;
default:
asprintf(&temp_buffer, "HOST NOTIFICATION: %s;%s;$HOSTSTATE$;%s;$HOSTOUTPUT$\n", cntct->name, hst->name, command_name_ptr);
break;
}
process_macros_r(mac, temp_buffer, &processed_buffer, 0);
write_to_all_logs(processed_buffer, NSLOG_HOST_NOTIFICATION);
my_free(temp_buffer);
my_free(processed_buffer);
}
/* run the notification command */
my_system_r(mac, processed_command, notification_timeout, &early_timeout, &exectime, NULL, 0);
/* check to see if the notification timed out */
if(early_timeout == TRUE) {
logit(NSLOG_HOST_NOTIFICATION | NSLOG_RUNTIME_WARNING, TRUE, "Warning: Contact '%s' host notification command '%s' timed out after %d seconds\n", cntct->name, processed_command, notification_timeout);
}
/* free memory */
my_free(command_name);
my_free(processed_command);
/* get end time */
gettimeofday(&method_end_time, NULL);
#ifdef USE_EVENT_BROKER
/* send data to event broker */
broker_contact_notification_method_data(NEBTYPE_CONTACTNOTIFICATIONMETHOD_END, NEBFLAG_NONE, NEBATTR_NONE, HOST_NOTIFICATION, type, method_start_time, method_end_time, (void *)hst, cntct, temp_commandsmember->command, not_author, not_data, escalated, NULL);
#endif
}
/* get end time */
gettimeofday(&end_time, NULL);
/* update the contact's last host notification time */
cntct->last_host_notification = start_time.tv_sec;
#ifdef USE_EVENT_BROKER
/* send data to event broker */
broker_contact_notification_data(NEBTYPE_CONTACTNOTIFICATION_END, NEBFLAG_NONE, NEBATTR_NONE, HOST_NOTIFICATION, type, start_time, end_time, (void *)hst, cntct, not_author, not_data, escalated, NULL);
#endif
return OK;
}
/* checks to see if a host escalation entry is a match for the current host notification */
int is_valid_escalation_for_host_notification(host *hst, hostescalation *he, int options) {
int notification_number = 0;
time_t current_time = 0L;
host *temp_host = NULL;
log_debug_info(DEBUGL_FUNCTIONS, 0, "is_valid_escalation_for_host_notification()\n");
/* get the current time */
time(&current_time);
/* if this is a recovery, really we check for who got notified about a previous problem */
if(hst->current_state == HOST_UP)
notification_number = hst->current_notification_number - 1;
else
notification_number = hst->current_notification_number;
/* find the host this escalation entry is associated with */
temp_host = he->host_ptr;
if(temp_host == NULL || temp_host != hst)
return FALSE;
/*** EXCEPTION ***/
/* broadcast options go to everyone, so this escalation is valid */
if(options & NOTIFICATION_OPTION_BROADCAST)
return TRUE;
/* skip this escalation if it happens later */
if(he->first_notification > notification_number)
return FALSE;
/* skip this escalation if it has already passed */
if(he->last_notification != 0 && he->last_notification < notification_number)
return FALSE;
/* skip this escalation if it has a timeperiod and the current time isn't valid */
if(he->escalation_period != NULL && check_time_against_period(current_time, he->escalation_period_ptr) == ERROR)
return FALSE;
/* skip this escalation if the state options don't match */
if(hst->current_state == HOST_UP && he->escalate_on_recovery == FALSE)
return FALSE;
else if(hst->current_state == HOST_DOWN && he->escalate_on_down == FALSE)
return FALSE;
else if(hst->current_state == HOST_UNREACHABLE && he->escalate_on_unreachable == FALSE)
return FALSE;
return TRUE;
}
/* checks to see whether a host notification should be escalation */
int should_host_notification_be_escalated(host *hst) {
hostescalation *temp_he = NULL;
void *ptr = NULL;
log_debug_info(DEBUGL_FUNCTIONS, 0, "should_host_notification_be_escalated()\n");
if(hst == NULL)
return FALSE;
/* search the host escalation list */
for(temp_he = get_first_hostescalation_by_host(hst->name, &ptr); temp_he != NULL; temp_he = get_next_hostescalation_by_host(hst->name, &ptr)) {
/* we found a matching entry, so escalate this notification! */
if(is_valid_escalation_for_host_notification(hst, temp_he, NOTIFICATION_OPTION_NONE) == TRUE)
return TRUE;
}
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Host notification will NOT be escalated.\n");
return FALSE;
}
/* given a host, create a list of contacts to be notified, removing duplicates, checking contact notification viability */
int create_notification_list_from_host(nagios_macros *mac, host *hst, int options, int *escalated, int type) {
hostescalation *temp_he = NULL;
contactsmember *temp_contactsmember = NULL;
contact *temp_contact = NULL;
contactgroupsmember *temp_contactgroupsmember = NULL;
contactgroup *temp_contactgroup = NULL;
int escalate_notification = FALSE;
void *ptr = NULL;
log_debug_info(DEBUGL_FUNCTIONS, 0, "create_notification_list_from_host()\n");
/* see if this notification should be escalated */
escalate_notification = should_host_notification_be_escalated(hst);
/* set the escalation flag */
*escalated = escalate_notification;
/* make sure there aren't any leftover contacts */
free_notification_list();
/* set the escalation macro */
mac->x[MACRO_NOTIFICATIONISESCALATED] = strdup(escalate_notification ? "1" : "0");
if(options & NOTIFICATION_OPTION_BROADCAST)
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "This notification will be BROADCAST to all (escalated and normal) contacts...\n");
/* use escalated contacts for this notification */
if(escalate_notification == TRUE || (options & NOTIFICATION_OPTION_BROADCAST)) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Adding contacts from host escalation(s) to notification list.\n");
/* check all the host escalation entries */
for(temp_he = get_first_hostescalation_by_host(hst->name, &ptr); temp_he != NULL; temp_he = get_next_hostescalation_by_host(hst->name, &ptr)) {
/* see if this escalation if valid for this notification */
if(is_valid_escalation_for_host_notification(hst, temp_he, options) == FALSE)
continue;
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Adding individual contacts from host escalation(s) to notification list.\n");
/* add all individual contacts for this escalation */
for(temp_contactsmember = temp_he->contacts; temp_contactsmember != NULL; temp_contactsmember = temp_contactsmember->next) {
if((temp_contact = temp_contactsmember->contact_ptr) == NULL)
continue;
/* check now if the contact can be notified */
if(check_contact_host_notification_viability(temp_contact, hst, type, options) == OK)
add_notification(mac, temp_contact);
else
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Not adding contact '%s'\n", temp_contact->name);
}
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Adding members of contact groups from host escalation(s) to notification list.\n");
/* add all contacts that belong to contactgroups for this escalation */
for(temp_contactgroupsmember = temp_he->contact_groups; temp_contactgroupsmember != NULL; temp_contactgroupsmember = temp_contactgroupsmember->next) {
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Adding members of contact group '%s' for host escalation to notification list.\n", temp_contactgroupsmember->group_name);
if((temp_contactgroup = temp_contactgroupsmember->group_ptr) == NULL)
continue;
for(temp_contactsmember = temp_contactgroup->members; temp_contactsmember != NULL; temp_contactsmember = temp_contactsmember->next) {
if((temp_contact = temp_contactsmember->contact_ptr) == NULL)
continue;
/* check now if the contact can be notified */
if(check_contact_host_notification_viability(temp_contact, hst, type, options) == OK)
add_notification(mac, temp_contact);
else
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Not adding contact '%s'\n", temp_contact->name);
}
}
}
}
/* use normal, non-escalated contacts for this notification */
if(escalate_notification == FALSE || (options & NOTIFICATION_OPTION_BROADCAST)) {
log_debug_info(DEBUGL_NOTIFICATIONS, 1, "Adding normal contacts for host to notification list.\n");
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Adding individual contacts for host to notification list.\n");
/* add all individual contacts for this host */
for(temp_contactsmember = hst->contacts; temp_contactsmember != NULL; temp_contactsmember = temp_contactsmember->next) {
if((temp_contact = temp_contactsmember->contact_ptr) == NULL)
continue;
/* check now if the contact can be notified */
if(check_contact_host_notification_viability(temp_contact, hst, type, options) == OK)
add_notification(mac, temp_contact);
else
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Not adding contact '%s'\n", temp_contact->name);
}
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Adding members of contact groups for host to notification list.\n");
/* add all contacts that belong to contactgroups for this host */
for(temp_contactgroupsmember = hst->contact_groups; temp_contactgroupsmember != NULL; temp_contactgroupsmember = temp_contactgroupsmember->next) {
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Adding members of contact group '%s' for host to notification list.\n", temp_contactgroupsmember->group_name);
if((temp_contactgroup = temp_contactgroupsmember->group_ptr) == NULL)
continue;
for(temp_contactsmember = temp_contactgroup->members; temp_contactsmember != NULL; temp_contactsmember = temp_contactsmember->next) {
if((temp_contact = temp_contactsmember->contact_ptr) == NULL)
continue;
/* check now if the contact can be notified */
if(check_contact_host_notification_viability(temp_contact, hst, type, options) == OK)
add_notification(mac, temp_contact);
else
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Not adding contact '%s'\n", temp_contact->name);
}
}
}
return OK;
}
/******************************************************************/
/***************** NOTIFICATION TIMING FUNCTIONS ******************/
/******************************************************************/
/* calculates next acceptable re-notification time for a service */
time_t get_next_service_notification_time(service *svc, time_t offset) {
time_t next_notification = 0L;
double interval_to_use = 0.0;
serviceescalation *temp_se = NULL;
int have_escalated_interval = FALSE;
log_debug_info(DEBUGL_FUNCTIONS, 0, "get_next_service_notification_time()\n");
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Calculating next valid notification time...\n");
/* default notification interval */
interval_to_use = svc->notification_interval;
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Default interval: %f\n", interval_to_use);
/* search all the escalation entries for valid matches for this service (at its current notification number) */
for(temp_se = serviceescalation_list; temp_se != NULL; temp_se = temp_se->next) {
/* interval < 0 means to use non-escalated interval */
if(temp_se->notification_interval < 0.0)
continue;
/* skip this entry if it isn't appropriate */
if(is_valid_escalation_for_service_notification(svc, temp_se, NOTIFICATION_OPTION_NONE) == FALSE)
continue;
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Found a valid escalation w/ interval of %f\n", temp_se->notification_interval);
/* if we haven't used a notification interval from an escalation yet, use this one */
if(have_escalated_interval == FALSE) {
have_escalated_interval = TRUE;
interval_to_use = temp_se->notification_interval;
}
/* else use the shortest of all valid escalation intervals */
else if(temp_se->notification_interval < interval_to_use)
interval_to_use = temp_se->notification_interval;
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "New interval: %f\n", interval_to_use);
}
/* if notification interval is 0, we shouldn't send any more problem notifications (unless service is volatile) */
if(interval_to_use == 0.0 && svc->is_volatile == FALSE)
svc->no_more_notifications = TRUE;
else
svc->no_more_notifications = FALSE;
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Interval used for calculating next valid notification time: %f\n", interval_to_use);
/* calculate next notification time */
next_notification = offset + (interval_to_use * interval_length);
return next_notification;
}
/* calculates next acceptable re-notification time for a host */
time_t get_next_host_notification_time(host *hst, time_t offset) {
time_t next_notification = 0L;
double interval_to_use = 0.0;
hostescalation *temp_he = NULL;
int have_escalated_interval = FALSE;
log_debug_info(DEBUGL_FUNCTIONS, 0, "get_next_host_notification_time()\n");
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Calculating next valid notification time...\n");
/* default notification interval */
interval_to_use = hst->notification_interval;
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Default interval: %f\n", interval_to_use);
/* check all the host escalation entries for valid matches for this host (at its current notification number) */
for(temp_he = hostescalation_list; temp_he != NULL; temp_he = temp_he->next) {
/* interval < 0 means to use non-escalated interval */
if(temp_he->notification_interval < 0.0)
continue;
/* skip this entry if it isn't appropriate */
if(is_valid_escalation_for_host_notification(hst, temp_he, NOTIFICATION_OPTION_NONE) == FALSE)
continue;
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Found a valid escalation w/ interval of %f\n", temp_he->notification_interval);
/* if we haven't used a notification interval from an escalation yet, use this one */
if(have_escalated_interval == FALSE) {
have_escalated_interval = TRUE;
interval_to_use = temp_he->notification_interval;
}
/* else use the shortest of all valid escalation intervals */
else if(temp_he->notification_interval < interval_to_use)
interval_to_use = temp_he->notification_interval;
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "New interval: %f\n", interval_to_use);
}
/* if interval is 0, no more notifications should be sent */
if(interval_to_use == 0.0)
hst->no_more_notifications = TRUE;
else
hst->no_more_notifications = FALSE;
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Interval used for calculating next valid notification time: %f\n", interval_to_use);
/* calculate next notification time */
next_notification = offset + (interval_to_use * interval_length);
return next_notification;
}
/******************************************************************/
/***************** NOTIFICATION OBJECT FUNCTIONS ******************/
/******************************************************************/
/* given a contact name, find the notification entry for them for the list in memory */
notification * find_notification(contact *cntct) {
notification *temp_notification = NULL;
log_debug_info(DEBUGL_FUNCTIONS, 0, "find_notification() start\n");
if(cntct == NULL)
return NULL;
for(temp_notification = notification_list; temp_notification != NULL; temp_notification = temp_notification->next) {
if(temp_notification->contact == cntct)
return temp_notification;
}
/* we couldn't find the contact in the notification list */
return NULL;
}
/* add a new notification to the list in memory */
int add_notification(nagios_macros *mac, contact *cntct) {
notification *new_notification = NULL;
notification *temp_notification = NULL;
log_debug_info(DEBUGL_FUNCTIONS, 0, "add_notification() start\n");
if(cntct == NULL)
return ERROR;
log_debug_info(DEBUGL_NOTIFICATIONS, 2, "Adding contact '%s' to notification list.\n", cntct->name);
/* don't add anything if this contact is already on the notification list */
if((temp_notification = find_notification(cntct)) != NULL)
return OK;
/* allocate memory for a new contact in the notification list */
if((new_notification = malloc(sizeof(notification))) == NULL)
return ERROR;
/* fill in the contact info */
new_notification->contact = cntct;
/* add new notification to head of list */
new_notification->next = notification_list;
notification_list = new_notification;
/* add contact to notification recipients macro */
if(mac->x[MACRO_NOTIFICATIONRECIPIENTS] == NULL)
mac->x[MACRO_NOTIFICATIONRECIPIENTS] = (char *)strdup(cntct->name);
else {
if((mac->x[MACRO_NOTIFICATIONRECIPIENTS] = (char *)realloc(mac->x[MACRO_NOTIFICATIONRECIPIENTS], strlen(mac->x[MACRO_NOTIFICATIONRECIPIENTS]) + strlen(cntct->name) + 2))) {
strcat(mac->x[MACRO_NOTIFICATIONRECIPIENTS], ",");
strcat(mac->x[MACRO_NOTIFICATIONRECIPIENTS], cntct->name);
}
}
return OK;
}
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