* @license GPLv2
*/
-#include "updater.h"
+#include "updater.hpp"
-#include "serviceholder.h"
+#include "serviceholder.hpp"
#include <boost/foreach.hpp>
using namespace std;
+/// Server error threshold: When the host IP is not current, the DNS TTL expired
+/// and we already sent an update.
+const int ServerErrorTTLExpiredThreshold = 15 * 60;
+
+
/**
* Default constructor which initializes the member Conf.
*/
/**
* Load the main config and the service definition files in config path.
- * @return 0 if all is fine,
+ * @return 0 if all is fine,
*/
int Updater::init_config_from_files() const
{
/**
* Init all Helper classes
- * @return
+ * @return
*/
int Updater::init_helper_classes()
{
{
Log->set_log_facility(Conf->get_loglevel(),Conf->get_syslog(),Conf->get_external_warning_log(),Conf->get_external_warning_level(),Conf->get_external_log_only_once());
Log->print_init_log_facility();
+
+ Log->set_log_passwords(Conf->get_log_passwords());
}
/**
* Update all configured services.
+ * @param changed_to_online True if we just changed to online, false if we were already online
*/
-void Updater::update_services() const
+void Updater::update_services(bool changed_to_online) const
{
// Get all services from the ServiceHolder.
list<Service::Ptr> services = ServiceHolder->get_services();
// Get the actual IP of this host.
- string ip_host = IPAddrHelp->get_actual_ip(Conf->get_webcheck_enabled());
+ string ip_host = IPAddrHelp->get_actual_ip(Conf->get_webcheck_enabled(), changed_to_online, Conf->get_wan_ip_override());
+ if ( ip_host.empty() )
+ {
+ Log->print_no_wan_ip(changed_to_online);
+ return;
+ } else
+ {
+ Log->print_external_wan_ip(changed_to_online, ip_host);
+ }
- if ( !ip_host.empty() )
+ BOOST_FOREACH(Service::Ptr &service, services )
{
- BOOST_FOREACH(Service::Ptr &service, services )
- {
- string ip_last_update = service->get_actual_ip();
- string hostname = service->get_hostname();
- time_t lastupdated = 0;
- time_t current_time = time(NULL);
+ string ip_last_update = service->get_actual_ip();
+ string hostname = service->get_hostname();
+ time_t current_time = time(NULL);
- // Try to get the lastupdated time of the actual service if there is one.
- if ( service->get_last_updates().size() > 0 )
- lastupdated = service->get_last_updates().front(); /*lint !e1793 */
+ // Get the last update time of the service.
+ time_t lastupdated = service->get_last_update_time();
- Log->print_check_service_update(hostname, current_time, lastupdated);
+ Log->print_check_service_update(hostname, current_time, lastupdated);
- // Do a DNS Query for the dynamic hostname.
- string ip_dns_recheck = IPAddrHelp->dns_query(hostname);
+ // Do a DNS Query for the dynamic hostname.
+ string ip_dns_recheck = IPAddrHelp->dns_query(hostname);
- Log->print_cached_dns_entry(hostname, ip_dns_recheck, ip_last_update, ip_host);
+ Log->print_cached_dns_entry(hostname, ip_dns_recheck, ip_last_update, ip_host);
+
+ // Test if the DNS-Record could not be found.
+ // If DNS-Record was not found but service was not activated, the hostname could be deactivated, offline or not existent. In this case try a ordinary update.
+ if ( ip_dns_recheck.empty() && service->get_activated() )
+ {
+ Log->print_dns_lookup_failed(changed_to_online, hostname);
+ continue;
+ }
+
+ // Test if the actual DNS-Record differs from the host's IP.
+ if (ip_host == ip_dns_recheck )
+ {
+ Log->print_no_update_needed(changed_to_online, hostname, ip_dns_recheck, ip_last_update, ip_host, lastupdated);
+ // No update needed
+ continue;
+ }
- // Test if the DNS-Record could not be found.
- if ( ip_dns_recheck.empty() )
+ // Check if the IP set in last update differs from the actual host's ip.
+ if ( ip_last_update != ip_host )
+ {
+ // Update
+ if ( !ip_dns_recheck.empty() )
+ {
+ Log->print_update_service(hostname, ip_dns_recheck, ip_last_update, ip_host, lastupdated);
+ }
+ else
{
- // Next in BOOST_FOREACH
+ // Service gets updated the first time and no DNS-Record was found. This is either a initial update or the hostname is really not available.
+ Log->print_update_service(hostname, "<NO IP SET>", ip_last_update, ip_host, lastupdated);
}
- // Test if the actual DNS-Record differs from the host's IP.
- else if ( ip_host != ip_dns_recheck )
+
+ service->update(ip_host, current_time, changed_to_online);
+ }
+ else
+ {
+ int dns_cache_ttl = service->get_dns_cache_ttl();
+
+ // Add server error threshold so we don't jam the server with updates for the same IP
+ // in case the server doesn't hand out the already sent IP via DNS
+ // (might indicate a server error).
+ dns_cache_ttl += ServerErrorTTLExpiredThreshold;
+
+ // Check if DNS Cache TTL is expired, if so, then update the same IP again.
+ if ( (lastupdated + dns_cache_ttl) < current_time )
{
- // Check if the service will be updated for the first time.
- if ( lastupdated == 0 )
- {
- // Update for the firt time.
- Log->print_update_service_firttime(hostname, ip_dns_recheck, ip_host);
- service->update(ip_host,current_time);
- }
- else
- {
- // We already have updated, check if the IP set in last update differs from the actual host's ip.
- if ( ip_last_update != ip_host )
- {
- // Update
- Log->print_update_service(hostname, ip_dns_recheck, ip_last_update, ip_host, lastupdated);
- service->update(ip_host,current_time);
- }
- else
- {
- int dns_cache_ttl = service->get_dns_cache_ttl();
- // Check if DNS Cache TTL is expired, if so, then update the same IP again.
- if ( (lastupdated + dns_cache_ttl) < current_time )
- {
- // Update
- Log->print_update_service_ttl_expired(hostname, ip_dns_recheck, ip_last_update, ip_host, lastupdated, dns_cache_ttl, current_time);
- service->update(ip_host,current_time);
- }
- else
- {
- // DNS cache TTL isn't expired
- Log->print_update_service_ttl_not_expired(hostname, ip_dns_recheck, ip_last_update, ip_host, lastupdated, dns_cache_ttl, current_time);
- }
- }
- }
+ // Update
+ Log->print_update_service_ttl_expired(hostname, ip_dns_recheck, ip_last_update, ip_host, lastupdated, dns_cache_ttl, current_time);
+ service->update(ip_host, current_time, changed_to_online);
}
else
{
- Log->print_no_update_needed(hostname, ip_dns_recheck, ip_last_update, ip_host, lastupdated);
+ // DNS cache TTL isn't expired
+ Log->print_update_service_ttl_not_expired(changed_to_online, hostname, ip_dns_recheck, ip_last_update, ip_host, lastupdated, dns_cache_ttl, current_time);
}
}
}
- else
- {
- Log->print_no_wan_ip();
- }
}
git://developer.intra2net.com / bpdyndnsd / blobdiff