public void InitializeIpBlockList(string path)
{
Logger.Debug("Read IP block list from {0}", Path.GetFileName(path));
var content = File.ReadAllText(path);
_blockedIpAddresses = new List <BlockedIpAddresses>();
foreach (var line in content.Split(new[] { '\r', '\n' }, StringSplitOptions.RemoveEmptyEntries))
{
var trimmedLine = line?.Trim();
if (string.IsNullOrWhiteSpace(trimmedLine) || trimmedLine.StartsWith("#"))
{
continue;
}
BlockedIpAddresses blockedIpAddresses;
if (BlockedIpAddresses.TryParseCIDRNotation(trimmedLine, out blockedIpAddresses) ||
BlockedIpAddresses.TryParseIpAddressRange(trimmedLine, out blockedIpAddresses))
{
_blockedIpAddresses.Add(blockedIpAddresses);
continue;
}
Logger.Warn("The blocked IP address \"{0}\" could not be parsed", trimmedLine);
}
if (_blockedIpAddresses.Count == 1)
{
Logger.Info("Loaded {0} IP address block", _blockedIpAddresses.Count);
}
else if (_blockedIpAddresses.Count > 1)
{
Logger.Info("Loaded {0} IP address blocks", _blockedIpAddresses.Count);
}
}
private void AddInternal(string addressStr)
{
try
{
BlockedIpAddresses.Add(addressStr);
}
catch
{
// this will be thrown if there is already an element in there, so just ignore.
}
}
public bool IsBlockedAddress(string addressStr)
{
return(BlockedIpAddresses.Contains(addressStr));
}