private static List <Models.CacheCustomList> LoadCustomLists()
{
var result = new List <Models.CacheCustomList>();
var csv = new CsvHelper.CsvReader(File.OpenText("custom.csv"));
while (csv.Read())
{
var item = new Models.CacheCustomList
{
Identity = csv.GetField(0),
WhiteList = csv.GetField(1).Split(';'),
BlackList = csv.GetField(2).Split(';'),
PolicyId = Convert.ToInt32(csv.GetField(3))
};
result.Add(item);
}
return(result);
}
public string Bypass(HttpContext ctx, string clientIpAddress, string domainToWhitelist, string authToken, string base64encodedUrlToRedirectTo)
{
log.Info($"Bypass request, ip={clientIpAddress}, {domainToWhitelist}.");
if (string.Compare(authToken, "BFLMPSVZ", StringComparison.OrdinalIgnoreCase) != 0)
{
return("");
}
var idbytes = Encoding.ASCII.GetBytes(clientIpAddress);
var idcrc = Crc64.Compute(0, idbytes);
string identity = idcrc.ToString("X");
IPAddress ip;
if (!IPAddress.TryParse(clientIpAddress, out ip))
{
return(new Exception($"unable to parse ip address {clientIpAddress}.").Message);
}
//TODO: check ipv6 reverse
var bytes = ip.GetAddressBytes().Reverse().ToArray();
BigMath.Int128 intip;
if (bytes.Length == 4)
{
intip = new BigMath.Int128(0, BitConverter.ToUInt32(bytes, 0));
}
else if (bytes.Length == 16)
{
intip = new BigMath.Int128(BitConverter.ToUInt64(bytes, 0), BitConverter.ToUInt64(bytes, 8));
}
else
{
return(new Exception($"unable to parse ip address {clientIpAddress}.").Message);
}
List <Models.CacheIPRange> ipranges;
List <Models.CacheCustomList> customlists;
if (CacheLiveStorage.CoreCache.IPRanges != null)
{
ipranges = CacheLiveStorage.CoreCache.IPRanges.ToList();
}
else
{
ipranges = new List <Models.CacheIPRange>();
}
if (CacheLiveStorage.CoreCache.IPRanges != null)
{
customlists = CacheLiveStorage.CoreCache.CustomLists.ToList();
}
else
{
customlists = new List <Models.CacheCustomList>();
}
ipranges.Add(new Models.CacheIPRange()
{
Identity = identity,
Proto_IpFrom = Encoding.ASCII.GetBytes(intip.ToString()),
Proto_IpTo = Encoding.ASCII.GetBytes(intip.ToString()),
PolicyId = 0
});
var item = customlists.FirstOrDefault(t => string.Compare(t.Identity, identity, StringComparison.OrdinalIgnoreCase) == 0);
if (item == null)
{
item = new Models.CacheCustomList()
{
Identity = identity,
WhiteList = new List <string>()
{
domainToWhitelist
},
BlackList = new List <string>(),
PolicyId = 0
};
log.Info($"Identity {identity} now has {domainToWhitelist} whitelisted.");
}
else
{
if (!item.WhiteList.Contains(domainToWhitelist))
{
var list = item.WhiteList.ToList();
list.Add(domainToWhitelist);
item.WhiteList = list;
foreach (var entry in item.WhiteList)
{
log.Info($"Identity {identity} now has {entry} whitelisted.");
}
}
else
{
log.Info($"Identity {identity} has {domainToWhitelist} already whitelisted.");
}
}
customlists.RemoveAll(t => string.Compare(t.Identity, identity, StringComparison.OrdinalIgnoreCase) == 0);
customlists.Add(item);
CacheLiveStorage.CoreCache.IPRanges = ipranges;
CacheLiveStorage.CoreCache.CustomLists = customlists;
log.Info($"Updating kres modules.");
KresUpdater.UpdateSmallCaches();
KresUpdater.UpdateNow();
log.Info($"Kres modules have been updated.");
//var redirectUrl = Base64Decode(base64encodedUrlToRedirectTo);
//ctx.Response.RedirectLocation = redirectUrl;
return(null);
}