private static bool validIp(string ip, bool silent)
{
string hostname = null;
try
{
hostname = Dns.GetHostEntry(ip).HostName;
}
catch (Exception ex)
{
DebugHelper.Exception(ex);
}
foreach (var line in Settings.Default.ConnectionCheckIpHostList.Split('\n'))
{
var test = line.Replace(" ", string.Empty).Trim();
if (test.Length < 1)
{
continue;
}
var allowed = test.StartsWith("@");
if (allowed)
{
test = test.Substring(1, test.Length - 1);
}
if (Settings.Default.ConnectionCheckIpCheck)
{
// Check Ip range
var m = new Regex(@"([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})-([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})").Match(test);
if (m.Success)
{
var lowerip = IPAddress.Parse(m.Groups[1].Value);
var higherip = IPAddress.Parse(m.Groups[2].Value);
var inrange = new IPAddressRange(lowerip, higherip).IsInRange(IPAddress.Parse(ip));
if (inrange)
{
if (allowed)
{
DebugHelper.Write(string.Format("Valid Connection: IP {0} in range -> {1}-{2}", ip, lowerip, higherip));
return(true);
}
DebugHelper.Write(string.Format("Invalid Connection: IP {0} in range -> {1}-{2}", ip, lowerip, higherip));
return(false);
}
continue;
}
// Check single IP
m = new Regex(@"([0-9*]{1,3}\.[0-9*]{1,3}\.[0-9*]{1,3}\.[0-9*]{1,3})").Match(test);
if (m.Success)
{
test = m.Groups[1].Value;
if (General.WildcardMatch(test, ip))
{
if (allowed)
{
DebugHelper.Write(string.Format("Valid Connection: IP match {0} -> {1}", ip, test));
return(true);
}
DebugHelper.Write(string.Format("Invalid Connection: IP match {0} -> {1}", ip, test));
return(false);
}
continue;
}
}
if (hostname == null)
{
continue;
}
if (General.WildcardMatch(test.ToLower(), hostname.ToLower()))
{
if (allowed)
{
DebugHelper.Write(string.Format("Valid Connection: Host match {0} -> {1}", hostname, test));
return(true);
}
DebugHelper.Write(string.Format("Invalid Connection: Host match {0} -> {1}", hostname, test));
return(false);
}
}
return(true);
}
private static bool validIp(string ip, bool silent)
{
string hostname = null;
try
{
hostname = Dns.GetHostEntry(ip).HostName;
}
catch (Exception ex)
{
DebugHelper.Exception(ex);
}
foreach (var line in Settings.Default.ConnectionCheckIpHostList.Split('\n'))
{
var test = line.Replace(" ", string.Empty).Trim();
if (test.Length < 1) continue;
var allowed = test.StartsWith("@");
if (allowed) test = test.Substring(1, test.Length-1);
if (Settings.Default.ConnectionCheckIpCheck)
{
// Check Ip range
var m = new Regex(@"([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})-([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})").Match(test);
if (m.Success)
{
var lowerip = IPAddress.Parse(m.Groups[1].Value);
var higherip = IPAddress.Parse(m.Groups[2].Value);
var inrange = new IPAddressRange(lowerip, higherip).IsInRange(IPAddress.Parse(ip));
if (inrange)
{
if (allowed)
{
DebugHelper.Write(string.Format("Valid Connection: IP {0} in range -> {1}-{2}", ip, lowerip, higherip));
return true;
}
DebugHelper.Write(string.Format("Invalid Connection: IP {0} in range -> {1}-{2}", ip, lowerip, higherip));
return false;
}
continue;
}
// Check single IP
m = new Regex(@"([0-9*]{1,3}\.[0-9*]{1,3}\.[0-9*]{1,3}\.[0-9*]{1,3})").Match(test);
if (m.Success)
{
test = m.Groups[1].Value;
if (General.WildcardMatch(test, ip))
{
if (allowed)
{
DebugHelper.Write(string.Format("Valid Connection: IP match {0} -> {1}", ip, test));
return true;
}
DebugHelper.Write(string.Format("Invalid Connection: IP match {0} -> {1}", ip, test));
return false;
}
continue;
}
}
if (hostname == null) continue;
if (General.WildcardMatch(test.ToLower(), hostname.ToLower()))
{
if (allowed)
{
DebugHelper.Write(string.Format("Valid Connection: Host match {0} -> {1}", hostname, test));
return true;
}
DebugHelper.Write(string.Format("Invalid Connection: Host match {0} -> {1}", hostname, test));
return false;
}
}
return true;
}
private static bool validIp(string ip, bool silent)
{
// Always return true when IP Check is disabled
if (!Settings.Default.ConnectionCheckIpCheck) return true;
foreach (var line in Settings.Default.ConnectionCheckIpHostList.Split('\n'))
{
var test = line.Replace(" ", string.Empty);
var m = new Regex(@"([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})-([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})").Match(test);
if (m.Success)
{
var lowerip = IPAddress.Parse(m.Groups[1].Value);
var higherip = IPAddress.Parse(m.Groups[2].Value);
var inrange = new IPAddressRange(lowerip, higherip).IsInRange(IPAddress.Parse(ip));
if (inrange)
{
Logger.Instance.WriteGlobal("ValidConnection: IP {0} in range -> {1}-{2}", ip, lowerip,higherip);
return false;
}
continue;
}
m = new Regex(@"([0-9*]{1,3}\.[0-9*]{1,3}\.[0-9*]{1,3}\.[0-9*]{1,3})").Match(test);
if (!m.Success) continue;
test = m.Groups[1].Value;
if (General.WildcardMatch(test, ip))
{
Logger.Instance.WriteGlobal("ValidConnection: IP match {0} -> {1}", ip,test);
return false;
}
}
return true;
}
