/// <summary>
/// Add the given DNS information to the DNS cache.
/// </summary>
/// <param name="Domainname">The domain name.</param>
/// <param name="DNSInformation">The DNS information to add.</param>
public DNSCache Add(String Domainname,
DNSInfo DNSInformation)
{
lock (_DNSCache)
{
DNSCacheEntry CacheEntry = null;
if (!_DNSCache.TryGetValue(Domainname, out CacheEntry))
{
_DNSCache.Add(Domainname, new DNSCacheEntry(
DateTime.Now + TimeSpan.FromSeconds(DNSInformation.Answers.First().TimeToLive.TotalSeconds / 2),
DateTime.Now + DNSInformation.Answers.First().TimeToLive,
DNSInformation));
}
else
{
// ToDo: Merge of DNS responses!
_DNSCache[Domainname] = new DNSCacheEntry(
DateTime.Now + TimeSpan.FromSeconds(DNSInformation.Answers.First().TimeToLive.TotalSeconds / 2),
DateTime.Now + DNSInformation.Answers.First().TimeToLive,
DNSInformation);
}
return(this);
}
}
/// <summary>
/// Get the cached DNS information from the DNS cache.
/// </summary>
/// <param name="DomainName">The domain name.</param>
public DNSInfo GetDNSInfo(String DomainName)
{
lock (_DNSCache)
{
DNSCacheEntry CacheEntry = null;
if (_DNSCache.TryGetValue(DomainName, out CacheEntry))
{
return(CacheEntry.DNSInfo);
}
return(null);
}
}
/// <summary>
/// Add the given DNS resource record to the DNS cache.
/// </summary>
/// <param name="Domainname">The domain name.</param>
/// <param name="Origin">The origin of the DNS resource record.</param>
/// <param name="ResourceRecord">The DNS resource record to add.</param>
public DNSCache Add(String Domainname,
IPSocket Origin,
ADNSResourceRecord ResourceRecord)
{
lock (_DNSCache)
{
DNSCacheEntry CacheEntry = null;
//Debug.WriteLine("[" + DateTime.Now + "] Adding '" + Domainname + "' to the DNS cache!");
if (!_DNSCache.TryGetValue(Domainname, out CacheEntry))
{
_DNSCache.Add(Domainname, new DNSCacheEntry(
DateTime.Now + TimeSpan.FromSeconds(ResourceRecord.TimeToLive.TotalSeconds / 2),
DateTime.Now + ResourceRecord.TimeToLive,
new DNSInfo(Origin: Origin,
QueryId: new Random().Next(),
IsAuthorativeAnswer: false,
IsTruncated: false,
RecursionDesired: false,
RecursionAvailable: false,
ResponseCode: DNSResponseCodes.NoError,
Answers: new ADNSResourceRecord[1] {
ResourceRecord
},
Authorities: new ADNSResourceRecord[0],
AdditionalRecords: new ADNSResourceRecord[0])));
}
else
{
// ToDo: Merge of DNS responses!
Debug.WriteLine("[" + DateTime.Now + "] Resource record for '" + Domainname + "' already exists within the DNS cache!");
}
return(this);
}
}
/// <summary>
/// Add the given DNS information to the DNS cache.
/// </summary>
/// <param name="Domainname">The domain name.</param>
/// <param name="DNSInformation">The DNS information to add.</param>
public DNSCache Add(String Domainname,
DNSInfo DNSInformation)
{
lock (_DNSCache)
{
DNSCacheEntry CacheEntry = null;
if (!_DNSCache.TryGetValue(Domainname, out CacheEntry))
_DNSCache.Add(Domainname, new DNSCacheEntry(
DateTime.Now + TimeSpan.FromSeconds(DNSInformation.Answers.First().TimeToLive.TotalSeconds / 2),
DateTime.Now + DNSInformation.Answers.First().TimeToLive,
DNSInformation));
else
{
// ToDo: Merge of DNS responses!
_DNSCache[Domainname] = new DNSCacheEntry(
DateTime.Now + TimeSpan.FromSeconds(DNSInformation.Answers.First().TimeToLive.TotalSeconds / 2),
DateTime.Now + DNSInformation.Answers.First().TimeToLive,
DNSInformation);
}
return this;
}
}
