public static DnsMessage DnsQuery(DnsMessage dnsMessage, HttpContext context,
bool CnDns = true, bool Cache = true)
{
try
{
if (Config.CacheEnable && !context.Request.Query.ContainsKey("no-cache") && Cache)
{
if (Config.GeoCacheEnable && DnsCache.Contains(dnsMessage, context))
{
return(DnsCache.Get(dnsMessage, context));
}
if (DnsCache.Contains(dnsMessage))
{
return(DnsCache.Get(dnsMessage));
}
}
if (Config.ChinaListEnable && !context.Request.Query.ContainsKey("no-cndns") && CnDns &&
DNSChina.IsChinaName(dnsMessage.Questions.FirstOrDefault().Name) &&
dnsMessage.Questions.FirstOrDefault().RecordType == RecordType.A)
{
return(DNSChina.ResolveOverChinaDns(dnsMessage));
}
}
catch (Exception e)
{
Console.WriteLine(e);
}
return(DnsQuery(UpEndPoint.Address, dnsMessage, UpEndPoint.Port, Config.TimeOut) ??
DnsQuery(BackUpEndPoint.Address, dnsMessage, BackUpEndPoint.Port, Config.TimeOut));
}
public static DnsMessage DnsQuery(DnsMessage dnsMessage, HttpContext context = null)
{
try
{
if (Config.CacheEnable)
{
if (context != null && Config.GeoCacheEnable && DnsCache.Contains(dnsMessage, context))
{
return(DnsCache.Get(dnsMessage, context));
}
if (DnsCache.Contains(dnsMessage))
{
return(DnsCache.Get(dnsMessage));
}
}
if (Config.ChinaListEnable && DNSChina.IsChinaName(dnsMessage.Questions.FirstOrDefault().Name) &&
dnsMessage.Questions.FirstOrDefault().RecordType == RecordType.A)
{
return(DNSChina.ResolveOverHttpDns(dnsMessage));
}
}
catch (Exception e)
{
Console.WriteLine(e);
}
return(DnsQuery(Config.UpStream, dnsMessage));
}
