|
static private LoadFormat1 ( [ fields ) : |
||
| fields | [ | |
| return | ||
internal static void Load()
{
lock ( BanListLock ) {
if (IsLoaded)
{
throw new InvalidOperationException("IPBanList is already loaded!");
}
if (File.Exists(Paths.IPBanListFileName))
{
using (StreamReader reader = File.OpenText(Paths.IPBanListFileName)) {
string headerText = reader.ReadLine();
if (headerText == null)
{
Logger.Log(LogType.Warning, "IPBanList.Load: IP ban file is empty.");
IsLoaded = true;
return;
}
int version = ParseHeader(headerText);
if (version > FormatVersion)
{
Logger.Log(LogType.Warning,
"IPBanList.Load: Attempting to load unsupported IPBanList format ({0}). Errors may occur.",
version);
}
else if (version < FormatVersion)
{
Logger.Log(LogType.Warning,
"IPBanList.Load: Converting IPBanList to a newer format (version {0} to {1}).",
version, FormatVersion);
}
while (!reader.EndOfStream)
{
string line = reader.ReadLine();
if (line == null)
{
break;
}
string[] fields = line.Split(',');
if (fields.Length == IPBanInfo.FieldCount)
{
try {
IPBanInfo ban;
switch (version)
{
case 0:
ban = IPBanInfo.LoadFormat0(fields, true);
break;
case 1:
ban = IPBanInfo.LoadFormat1(fields);
break;
case 2:
ban = IPBanInfo.LoadFormat2(fields);
break;
default:
return;
}
if (ban.Address.Equals(IPAddress.Any) || ban.Address.Equals(IPAddress.None))
{
Logger.Log(LogType.Warning,
"IPBanList.Load: Invalid IP address skipped.");
}
else
{
Bans.Add(ban.Address.ToString(), ban);
}
} catch (IOException ex) {
Logger.Log(LogType.Error,
"IPBanList.Load: Error while trying to read from file: {0}", ex.Message);
} catch (Exception ex) {
Logger.Log(LogType.Error,
"IPBanList.Load: Could not parse a record: {0}", ex.Message);
}
}
else
{
Logger.Log(LogType.Error,
"IPBanList.Load: Corrupt record skipped ({0} fields instead of {1}): {2}",
fields.Length, IPBanInfo.FieldCount, String.Join(",", fields));
}
}
}
Logger.Log(LogType.Debug,
"IPBanList.Load: Done loading IP ban list ({0} records).", Bans.Count);
}
else
{
Logger.Log(LogType.Warning,
"IPBanList.Load: No IP ban file found.");
}
IsLoaded = true;
}
}
