private bool CheckHosts(IPAddress localIPAddress)
{
bool Result = true;
List <string> Hostnames = new List <string>();
foreach (ListViewItem LVI in lvHosts.Items)
{
Hostnames.Add(LVI.SubItems[0].Text);
}
foreach (string Hostname in Hostnames)
{
try
{
HostConfig HC = new HostConfig(Hostname);
if (HC.Loaded)
{
bool HostNeedsUpdate = true;
// Get current IP for host (to see if it differs from detected IP)
try
{
foreach (IPAddress RemoteIPAddress in HC.GetRemoteIPs().Reverse())
{
SetCurrentIP(HC.Hostname, RemoteIPAddress.ToString());
if (RemoteIPAddress.ToString() == localIPAddress.ToString())
{
HostNeedsUpdate = false;
break;
}
}
}
catch (Exception ex)
{
SetCurrentIP(HC.Hostname, "Unable to resolve");
Logging.instance.LogException("Unable to resolve \"" + HC.Hostname + "\"", ex);
}
// Also check if it has been > 7 days since we updated, and if so, force an update to ensure our host doesn't expire
if (DateTime.Now.Subtract(HC.LastUpdateDate).TotalDays >= 7.0)
{
HostNeedsUpdate = true;
}
if (HostNeedsUpdate && !HC.Disabled)
{
// If we get here it means the IP retrieved from DNS doesn't match our detected external IP, so
// in theory we need to send an update to the provider. The problem is if the provider has a
// large TTL value then we may have already sent an update and just got a cached IP from the DNS
// lookup -- and in that case we don't want to send another update. So we'll check if the last
// IP we updated with matches the current IP. If it does, then we won't send another update
// unless one hour has passed since the last update
if ((localIPAddress.ToString() != HC.LastUpdateIP) || (DateTime.Now.Subtract(HC.LastUpdateDate).TotalHours > 1))
{
if (!Debugger.IsAttached || (Dialog.YesNo("Do you want to update " + HC.Hostname + "?", "Confirm Update") == DialogResult.Yes))
{
Logging.instance.LogMessage("Updating \"" + HC.Hostname + "\" (" + HC.Provider.ToString() + ") to " + localIPAddress);
HC.LastUpdateIP = localIPAddress.ToString();
HC.LastUpdateDate = DateTime.Now;
HC.Save();
Provider P = Providers.GetProvider(HC.Provider);
P.Update(HC, localIPAddress);
SetStatus(HC.Hostname, HC.Status);
}
}
}
if (HC.Disabled)
{
Result = false;
}
}
}
catch (Exception ex)
{
// Don't let a single host fail the whole update process
Logging.instance.LogException("Error checking \"" + Hostname + "\"", ex);
if (Debugger.IsAttached)
{
Dialog.Error("Error checking " + Hostname + ":\r\n\r\n" + ex.Message, "Error");
}
Result = false;
}
}
return(Result);
}
private bool CheckHosts(IPAddress localIPAddress)
{
bool Result = true;
List<string> Hostnames = new List<string>();
foreach (ListViewItem LVI in lvHosts.Items)
{
Hostnames.Add(LVI.SubItems[0].Text);
}
foreach (string Hostname in Hostnames)
{
try
{
HostConfig HC = new HostConfig(Hostname);
if (HC.Loaded)
{
bool HostNeedsUpdate = true;
// Get current IP for host (to see if it differs from detected IP)
try
{
foreach (IPAddress RemoteIPAddress in HC.GetRemoteIPs().Reverse())
{
SetCurrentIP(HC.Hostname, RemoteIPAddress.ToString());
if (RemoteIPAddress.ToString() == localIPAddress.ToString())
{
HostNeedsUpdate = false;
break;
}
}
}
catch (Exception ex)
{
SetCurrentIP(HC.Hostname, "Unable to resolve");
Logging.instance.LogException("Unable to resolve \"" + HC.Hostname + "\"", ex);
}
// Also check if it has been > 7 days since we updated, and if so, force an update to ensure our host doesn't expire
if (DateTime.Now.Subtract(HC.LastUpdateDate).TotalDays >= 7.0)
{
HostNeedsUpdate = true;
}
if (HostNeedsUpdate && !HC.Disabled)
{
// If we get here it means the IP retrieved from DNS doesn't match our detected external IP, so
// in theory we need to send an update to the provider. The problem is if the provider has a
// large TTL value then we may have already sent an update and just got a cached IP from the DNS
// lookup -- and in that case we don't want to send another update. So we'll check if the last
// IP we updated with matches the current IP. If it does, then we won't send another update
// unless one hour has passed since the last update
if ((localIPAddress.ToString() != HC.LastUpdateIP) || (DateTime.Now.Subtract(HC.LastUpdateDate).TotalHours > 1))
{
if (!Debugger.IsAttached || (Dialog.YesNo("Do you want to update " + HC.Hostname + "?", "Confirm Update") == DialogResult.Yes))
{
Logging.instance.LogMessage("Updating \"" + HC.Hostname + "\" (" + HC.Provider.ToString() + ") to " + localIPAddress);
HC.LastUpdateIP = localIPAddress.ToString();
HC.LastUpdateDate = DateTime.Now;
HC.Save();
Provider P = Providers.GetProvider(HC.Provider);
P.Update(HC, localIPAddress);
SetStatus(HC.Hostname, HC.Status);
}
}
}
if (HC.Disabled) Result = false;
}
}
catch (Exception ex)
{
// Don't let a single host fail the whole update process
Logging.instance.LogException("Error checking \"" + Hostname + "\"", ex);
if (Debugger.IsAttached) Dialog.Error("Error checking " + Hostname + ":\r\n\r\n" + ex.Message, "Error");
Result = false;
}
}
return Result;
}
