/** * Get all service names of a specific type in a single domain. * @param type the service type as a string, including transport and subtype (if any). * @param domainName the domain to browse. * @param results a collection to put found service names into. */ private void getServiceInstances(String type, DomainName domainName, ICollection <ServiceName> results) { DomainName typeDN = DomainName.Parse(type); DomainName typeDomainName = typeDN + domainName; DnsMessage dnsMessage = DNSClientUtil.GetDefaultClient().Resolve(typeDomainName, RecordType.Ptr); if ((dnsMessage == null) || dnsMessage.AnswerRecords.Count == 0 || ((dnsMessage.ReturnCode != ReturnCode.NoError) && (dnsMessage.ReturnCode != ReturnCode.NxDomain))) { throw new Exception("DNS request failed"); } else { foreach (DnsRecordBase record in dnsMessage.AnswerRecords) { PtrRecord ptr = record as PtrRecord; DomainName name = ptr.PointerDomainName; try { results.Add(ServiceName.fromDnsName(name)); } catch (ArgumentException e) { Log.Error("Invalid service instance " + name + ": " + e.Message, e); } } } }
/** * Get the service types from a single domain. * @param domainName the domain to browse. * @return a list of service types. */ private List <ServiceType> getServiceTypes(DomainName domainName) { List <ServiceType> results = new List <ServiceType>(); DnsMessage dnsMessage = DNSClientUtil.GetDefaultClient().Resolve(SERVICES_DNSSD_UDP + domainName, RecordType.Ptr); if ((dnsMessage == null) || dnsMessage.AnswerRecords.Count == 0 || ((dnsMessage.ReturnCode != ReturnCode.NoError) && (dnsMessage.ReturnCode != ReturnCode.NxDomain))) { throw new Exception("DNS request failed"); } else { foreach (DnsRecordBase record in dnsMessage.AnswerRecords) { PtrRecord ptr = record as PtrRecord; DomainName name = ptr.PointerDomainName; String type = name.Labels[0]; String transport = name.Labels[1]; results.Add(new ServiceType(type, transport)); } } return(results); }
private static void PtrReadDelegate(object sender, RecordReadEventArgs e) { PtrRecord ptr = e.Record as PtrRecord; if (ptr == null) { return; } Console.WriteLine(e.Record); }
/// <summary> /// Tests equality between this PTR record and the other <paramref name="record"/>. /// </summary> /// <param name="record">The other record.</param> /// <returns><c>true</c> if the RRs are equal, <c>false</c> otherwise.</returns> public override bool Equals(DnsResourceRecord record) { if (!base.Equals(record)) { return false; } PtrRecord ptrRecord = record as PtrRecord; if (ptrRecord == null) { return false; } return (DnsStandard.Equals(this.m_domain, ptrRecord.m_domain)); }
/// <summary> /// Resolves and returns an <see cref="System.Net.IPHostEntry"/> for the /// specified <see cref="System.Net.IPAddress"/>. /// </summary> /// <param name="address">The host's IP address.</param> /// <returns>An <see cref="System.Net.IPHostEntry"/> containing information /// associated with the host.</returns> /// <exception cref="System.ArgumentNullException"> /// Thrown when <paramref name="address"/> is <see langword="null"/>. /// </exception> /// <exception cref="AK.Net.Dns.DnsTransportException"> /// Thrown when a transport error occurs. /// </exception> /// <exception cref="AK.Net.Dns.DnsResolutionException"> /// Thrown when an error occurs during the resolution, such as the query /// not being answered. /// </exception> public virtual IPHostEntry GetHostEntry(IPAddress address) { Guard.NotNull(address, "address"); DnsName qname = PtrRecord.MakeName(address); DnsReply reply = Resolve(new DnsQuestion(qname, DnsQueryType.Ptr, DnsQueryClass.IN)); return(new IPHostEntry() { AddressList = new IPAddress[] { address }, Aliases = DnsUtility.EMPTY_STRING_ARRAY, HostName = (from ptr in reply.Answers where F.IsPtr(ptr) && ptr.Owner.Equals(qname) select F.ToPtr(ptr).Domain).FirstOrDefault() ?? null }); }
} // End Sub Test2 // Get reverse lookup adress for an ip address public static void Test3() { DnsMessage dnsMessage = DnsClient.Default.Resolve(IPAddress.Parse("192.0.2.1").GetReverseLookupDomain(), RecordType.Ptr); if ((dnsMessage == null) || ((dnsMessage.ReturnCode != ReturnCode.NoError) && (dnsMessage.ReturnCode != ReturnCode.NxDomain))) { throw new Exception("DNS request failed"); } else { foreach (DnsRecordBase dnsRecord in dnsMessage.AnswerRecords) { PtrRecord ptrRecord = dnsRecord as PtrRecord; if (ptrRecord != null) { Console.WriteLine(ptrRecord.PointerDomainName); } } } } // End Sub Test3
private void _read() { _name = new DomainName(m_io, this, m_root); _type = ((DnsPacket.RecordType)m_io.ReadU2be()); _answerClass = ((DnsPacket.ClassType)m_io.ReadU2be()); _ttl = m_io.ReadS4be(); _rdlength = m_io.ReadU2be(); switch (Type) { case DnsPacket.RecordType.Aaaa: { _rdata = new AaaaRecord(m_io, this, m_root); break; } case DnsPacket.RecordType.A: { _rdata = new ARecord(m_io, this, m_root); break; } case DnsPacket.RecordType.Mx: { _rdata = new MxRecord(m_io, this, m_root); break; } case DnsPacket.RecordType.Cname: { _rdata = new CnameRecord(m_io, this, m_root); break; } case DnsPacket.RecordType.Ns: { _rdata = new NsRecord(m_io, this, m_root); break; } case DnsPacket.RecordType.Ptr: { _rdata = new PtrRecord(m_io, this, m_root); break; } } }
} // End Sub Test2 // Get reverse lookup adress for an ip address public static void Test3() { ARSoft.Tools.Net.DomainName lookedUpDomainName = ARSoft.Tools.Net.IPAddressExtensions.GetReverseLookupDomain( System.Net.IPAddress.Parse("192.0.2.1") ); DnsMessage dnsMessage = DnsClient.Default.Resolve(lookedUpDomainName, RecordType.Ptr); if ((dnsMessage == null) || ((dnsMessage.ReturnCode != ReturnCode.NoError) && (dnsMessage.ReturnCode != ReturnCode.NxDomain))) { throw new System.Exception("DNS request failed"); } else { foreach (DnsRecordBase dnsRecord in dnsMessage.AnswerRecords) { PtrRecord ptrRecord = dnsRecord as PtrRecord; if (ptrRecord != null) { System.Console.WriteLine(ptrRecord.PointerDomainName); } } } } // End Sub Test3
/** * Get all domains pointed to by the given resource record name, * looking in a single computer domain. * @param rrName the DNS resource record name. * @return a collection of domain names. */ private List <String> getDomains(DomainName rrName, DomainName domainName) { List <String> results = new List <String>(); DnsMessage dnsMessage = DNSClientUtil.GetDefaultClient().Resolve(rrName + domainName, RecordType.Ptr); if ((dnsMessage == null) || dnsMessage.AnswerRecords.Count == 0 || ((dnsMessage.ReturnCode != ReturnCode.NoError) && (dnsMessage.ReturnCode != ReturnCode.NxDomain))) { throw new Exception("DNS request failed"); } else { foreach (DnsRecordBase record in dnsMessage.AnswerRecords) { PtrRecord ptr = record as PtrRecord; DomainName name = ptr.PointerDomainName; results.Add(name.ToString()); } } return(results); }
private async void ProcessMessageAsync(UdpReceiveResult udpMessage) { await Task.Run(async() => { try { DnsMessage message; DnsQuestion question; var respondedFromCache = false; try { message = DnsMessage.Parse(udpMessage.Buffer); question = message.Questions[0]; } catch (Exception) { throw new ParsingException(); } // Check for authorized subnet access if (_networkWhitelist != null) { if (_networkWhitelist.All(pair => !pair.Key.GetNetworkAddress(pair.Value) .Equals(udpMessage.RemoteEndPoint.Address.GetNetworkAddress(pair.Value)))) { Logger.Info("-> {0} is not authorized, who requested {1}.", udpMessage.RemoteEndPoint.Address, question); message.ReturnCode = ReturnCode.Refused; message.IsQuery = false; } } Logger.Info("-> {0} requested {1} (#{2}, {3}).", udpMessage.RemoteEndPoint.Address, question.Name, message.TransactionID, question.RecordType); // Query cache if (Options.CacheResponse) { if (Cache.ContainsKey(question.Name) && Cache[question.Name].ContainsKey(question.RecordType)) { var entry = Cache[question.Name][question.RecordType]; if (!entry.IsExpired) { var cachedMessage = entry.Message; Logger.Info("-> #{0} {2} served from cache.", message.TransactionID, cachedMessage.TransactionID, question.Name); cachedMessage.TransactionID = message.TransactionID; // Update transaction ID cachedMessage.TSigOptions = message.TSigOptions; // Update TSig options message = cachedMessage; respondedFromCache = true; } } } var targetNameServer = Options.DefaultNameServer; var useHttpQuery = Options.UseHttpQuery; var queryTimeout = Options.QueryTimeout; var useCompressionMutation = Options.CompressionMutation; // Match rules if (message.IsQuery && (question.RecordType == RecordType.A || question.RecordType == RecordType.Aaaa || question.RecordType == RecordType.Ptr)) { for (var i = Rules.Count - 1; i >= 0; i--) { var match = Regex.Match(question.Name, Rules[i].Pattern); if (!match.Success) { continue; } // Domain name matched var recordType = question.RecordType; if (Rules[i].ForceAAAA != null && Rules[i].ForceAAAA.Value) // RecordType override { recordType = RecordType.Aaaa; } if (Rules[i].NameServer != null) // Name server override { targetNameServer = Rules[i].NameServer; } if (Rules[i].UseHttpQuery != null) // HTTP query override { useHttpQuery = Rules[i].UseHttpQuery.Value; } if (Rules[i].QueryTimeout != null) // Query timeout override { queryTimeout = Rules[i].QueryTimeout.Value; } if (Rules[i].CompressionMutation != null) // Compression pointer mutation override { useCompressionMutation = Rules[i].CompressionMutation.Value; } if (Rules[i].Address != null) { IPAddress ip; IPAddress.TryParse(Rules[i].Address, out ip); if (ip == null) // Invalid IP, may be a domain name { var address = string.Format(Rules[i].Address, match.Groups.Cast <object>().ToArray()); if (recordType == RecordType.A && useHttpQuery) { await ResolveWithHttp(targetNameServer, address, queryTimeout, message); } else if (recordType == RecordType.Ptr) { var answerRecord = new PtrRecord(question.Name, 600, Rules[i].Address); message.AnswerRecords.Add(answerRecord); message.ReturnCode = ReturnCode.NoError; message.IsQuery = false; } else { var serverEndpoint = Utils.CreateIpEndPoint(targetNameServer, 53); var dnsClient = new DnsClient(serverEndpoint.Address, queryTimeout, serverEndpoint.Port); var response = await Task <DnsMessage> .Factory.FromAsync(dnsClient.BeginResolve, dnsClient.EndResolve, address, recordType, question.RecordClass, null); if (response == null) { Logger.Warning($"Remote resolve failed for {address}."); return; } foreach (var answerRecord in response.AnswerRecords) { answerRecord.Name = question.Name; message.AnswerRecords.Add(answerRecord); } message.ReturnCode = response.ReturnCode; message.IsQuery = false; } } else { if (recordType == RecordType.A && ip.AddressFamily == AddressFamily.InterNetwork) { message.AnswerRecords.Add(new ARecord(question.Name, 600, ip)); } else if (recordType == RecordType.Aaaa && ip.AddressFamily == AddressFamily.InterNetworkV6) { message.AnswerRecords.Add(new AaaaRecord(question.Name, 600, ip)); } else // Type mismatch { continue; } message.ReturnCode = ReturnCode.NoError; message.IsQuery = false; } } break; } } // TODO: Consider how to integrate System.Net.Dns with this project. // Using System.Net.Dns to forward query if compression mutation is disabled //if (message.IsQuery && !useCompressionMutation && // (question.RecordType == RecordType.A || question.RecordType == RecordType.Aaaa)) //{ // var dnsResponse = await Dns.GetHostAddressesAsync(question.Name); // if (question.RecordType == RecordType.A) // { // message.AnswerRecords.AddRange(dnsResponse.Where( // ip => ip.AddressFamily == AddressFamily.InterNetwork).Select( // ip => new ARecord(question.Name, 0, ip))); // else if (question.RecordType == RecordType.Aaaa) // { // message.AnswerRecords.AddRange(dnsResponse.Where( // ip => ip.AddressFamily == AddressFamily.InterNetworkV6).Select( // ip => new AaaaRecord(question.Name, 0, ip))); // } // message.ReturnCode = ReturnCode.NoError; // message.IsQuery = false; //} if (message.IsQuery && question.RecordType == RecordType.A && useHttpQuery) { await ResolveWithHttp(targetNameServer, question.Name, queryTimeout, message); } if (message.IsQuery) { // Use internal forwarder to forward query to another name server await ForwardMessage(message, udpMessage, Utils.CreateIpEndPoint(targetNameServer, 53), queryTimeout, useCompressionMutation); } else { // Already answered, directly return to the client byte[] responseBuffer; message.Encode(false, out responseBuffer); if (responseBuffer != null) { await _udpListener.SendAsync(responseBuffer, responseBuffer.Length, udpMessage.RemoteEndPoint); // Update cache if (Options.CacheResponse && !respondedFromCache) { Cache.Update(question, message, Options.CacheAge); } } } } catch (ParsingException) { } catch (SocketException e) { Logger.Error("[Listener.Send] Unexpected socket error:\n{0}", e); } catch (Exception e) { Logger.Error("[Processor] Unexpected exception:\n{0}", e); } }); }
private static (List <dynamic> list, ReturnCode statusCode) ResolveOverHttps(string clientIpAddress, string domainName, bool proxyEnable = false, IWebProxy wProxy = null, RecordType type = RecordType.A) { string dnsStr; List <dynamic> recordList = new List <dynamic>(); using (MWebClient webClient = new MWebClient()) { webClient.Headers["User-Agent"] = "AuroraDNSC/0.1"; // webClient.AllowAutoRedirect = false; if (proxyEnable) { webClient.Proxy = wProxy; } try { dnsStr = webClient.DownloadString( DnsSettings.HttpsDnsUrl + @"?ct=application/dns-json&" + $"name={domainName}&type={type.ToString().ToUpper()}&edns_client_subnet={clientIpAddress}"); } catch (WebException e) { HttpWebResponse response = (HttpWebResponse)e.Response; try { BgwLog($@"| - Catch WebException : {Convert.ToInt32(response.StatusCode)} {response.StatusCode} | {domainName}"); } catch (Exception exception) { BgwLog($@"| - Catch WebException : {exception.Message} | {domainName}"); //MainWindow.NotifyIcon.ShowBalloonTip(360, "AuroraDNS - 错误", // $"异常 : {exception.Message} {Environment.NewLine} {domainName}", ToolTipIcon.Warning); } return(new List <dynamic>(), ReturnCode.ServerFailure); } } JsonValue dnsJsonValue = Json.Parse(dnsStr); int statusCode = dnsJsonValue.AsObjectGetInt("Status"); if (statusCode != 0) { return(new List <dynamic>(), (ReturnCode)statusCode); } if (dnsStr.Contains("\"Answer\"")) { var dnsAnswerJsonList = dnsJsonValue.AsObjectGetArray("Answer"); foreach (var itemJsonValue in dnsAnswerJsonList) { string answerAddr = itemJsonValue.AsObjectGetString("data"); string answerDomainName = itemJsonValue.AsObjectGetString("name"); int answerType = itemJsonValue.AsObjectGetInt("type"); int ttl = itemJsonValue.AsObjectGetInt("TTL"); switch (type) { case RecordType.A: { if (Convert.ToInt32(RecordType.A) == answerType) { ARecord aRecord = new ARecord( DomainName.Parse(answerDomainName), ttl, IPAddress.Parse(answerAddr)); recordList.Add(aRecord); } else if (Convert.ToInt32(RecordType.CName) == answerType) { CNameRecord cRecord = new CNameRecord( DomainName.Parse(answerDomainName), ttl, DomainName.Parse(answerAddr)); recordList.Add(cRecord); //recordList.AddRange(ResolveOverHttps(clientIpAddress,answerAddr)); //return recordList; } break; } case RecordType.Aaaa: { if (Convert.ToInt32(RecordType.Aaaa) == answerType) { AaaaRecord aaaaRecord = new AaaaRecord( DomainName.Parse(answerDomainName), ttl, IPAddress.Parse(answerAddr)); recordList.Add(aaaaRecord); } else if (Convert.ToInt32(RecordType.CName) == answerType) { CNameRecord cRecord = new CNameRecord( DomainName.Parse(answerDomainName), ttl, DomainName.Parse(answerAddr)); recordList.Add(cRecord); } break; } case RecordType.CName when answerType == Convert.ToInt32(RecordType.CName): { CNameRecord cRecord = new CNameRecord( DomainName.Parse(answerDomainName), ttl, DomainName.Parse(answerAddr)); recordList.Add(cRecord); break; } case RecordType.Ns when answerType == Convert.ToInt32(RecordType.Ns): { NsRecord nsRecord = new NsRecord( DomainName.Parse(answerDomainName), ttl, DomainName.Parse(answerAddr)); recordList.Add(nsRecord); break; } case RecordType.Mx when answerType == Convert.ToInt32(RecordType.Mx): { MxRecord mxRecord = new MxRecord( DomainName.Parse(answerDomainName), ttl, ushort.Parse(answerAddr.Split(' ')[0]), DomainName.Parse(answerAddr.Split(' ')[1])); recordList.Add(mxRecord); break; } case RecordType.Txt when answerType == Convert.ToInt32(RecordType.Txt): { TxtRecord txtRecord = new TxtRecord(DomainName.Parse(answerDomainName), ttl, answerAddr); recordList.Add(txtRecord); break; } case RecordType.Ptr when answerType == Convert.ToInt32(RecordType.Ptr): { PtrRecord ptrRecord = new PtrRecord( DomainName.Parse(answerDomainName), ttl, DomainName.Parse(answerAddr)); recordList.Add(ptrRecord); break; } default: { statusCode = Convert.ToInt32(ReturnCode.ServerFailure); break; } } } } return(recordList, (ReturnCode)statusCode); }
internal static RecordSetData DeserializeRecordSetData(JsonElement element) { Optional <string> etag = default; ResourceIdentifier id = default; string name = default; ResourceType type = default; SystemData systemData = default; Optional <IDictionary <string, string> > metadata = default; Optional <long> ttl = default; Optional <string> fqdn = default; Optional <string> provisioningState = default; Optional <WritableSubResource> targetResource = default; Optional <IList <ARecord> > aRecords = default; Optional <IList <AaaaRecord> > aaaaRecords = default; Optional <IList <MxRecord> > mxRecords = default; Optional <IList <NsRecord> > nsRecords = default; Optional <IList <PtrRecord> > ptrRecords = default; Optional <IList <SrvRecord> > srvRecords = default; Optional <IList <TxtRecord> > txtRecords = default; Optional <CnameRecord> cnameRecord = default; Optional <SoaRecord> soaRecord = default; Optional <IList <CaaRecord> > caaRecords = default; foreach (var property in element.EnumerateObject()) { if (property.NameEquals("etag")) { etag = property.Value.GetString(); continue; } if (property.NameEquals("id")) { id = new ResourceIdentifier(property.Value.GetString()); continue; } if (property.NameEquals("name")) { name = property.Value.GetString(); continue; } if (property.NameEquals("type")) { type = new ResourceType(property.Value.GetString()); continue; } if (property.NameEquals("systemData")) { systemData = JsonSerializer.Deserialize <SystemData>(property.Value.ToString()); continue; } if (property.NameEquals("properties")) { if (property.Value.ValueKind == JsonValueKind.Null) { property.ThrowNonNullablePropertyIsNull(); continue; } foreach (var property0 in property.Value.EnumerateObject()) { if (property0.NameEquals("metadata")) { if (property0.Value.ValueKind == JsonValueKind.Null) { property0.ThrowNonNullablePropertyIsNull(); continue; } Dictionary <string, string> dictionary = new Dictionary <string, string>(); foreach (var property1 in property0.Value.EnumerateObject()) { dictionary.Add(property1.Name, property1.Value.GetString()); } metadata = dictionary; continue; } if (property0.NameEquals("TTL")) { if (property0.Value.ValueKind == JsonValueKind.Null) { property0.ThrowNonNullablePropertyIsNull(); continue; } ttl = property0.Value.GetInt64(); continue; } if (property0.NameEquals("fqdn")) { fqdn = property0.Value.GetString(); continue; } if (property0.NameEquals("provisioningState")) { provisioningState = property0.Value.GetString(); continue; } if (property0.NameEquals("targetResource")) { if (property0.Value.ValueKind == JsonValueKind.Null) { property0.ThrowNonNullablePropertyIsNull(); continue; } targetResource = JsonSerializer.Deserialize <WritableSubResource>(property0.Value.ToString()); continue; } if (property0.NameEquals("ARecords")) { if (property0.Value.ValueKind == JsonValueKind.Null) { property0.ThrowNonNullablePropertyIsNull(); continue; } List <ARecord> array = new List <ARecord>(); foreach (var item in property0.Value.EnumerateArray()) { array.Add(ARecord.DeserializeARecord(item)); } aRecords = array; continue; } if (property0.NameEquals("AAAARecords")) { if (property0.Value.ValueKind == JsonValueKind.Null) { property0.ThrowNonNullablePropertyIsNull(); continue; } List <AaaaRecord> array = new List <AaaaRecord>(); foreach (var item in property0.Value.EnumerateArray()) { array.Add(AaaaRecord.DeserializeAaaaRecord(item)); } aaaaRecords = array; continue; } if (property0.NameEquals("MXRecords")) { if (property0.Value.ValueKind == JsonValueKind.Null) { property0.ThrowNonNullablePropertyIsNull(); continue; } List <MxRecord> array = new List <MxRecord>(); foreach (var item in property0.Value.EnumerateArray()) { array.Add(MxRecord.DeserializeMxRecord(item)); } mxRecords = array; continue; } if (property0.NameEquals("NSRecords")) { if (property0.Value.ValueKind == JsonValueKind.Null) { property0.ThrowNonNullablePropertyIsNull(); continue; } List <NsRecord> array = new List <NsRecord>(); foreach (var item in property0.Value.EnumerateArray()) { array.Add(NsRecord.DeserializeNsRecord(item)); } nsRecords = array; continue; } if (property0.NameEquals("PTRRecords")) { if (property0.Value.ValueKind == JsonValueKind.Null) { property0.ThrowNonNullablePropertyIsNull(); continue; } List <PtrRecord> array = new List <PtrRecord>(); foreach (var item in property0.Value.EnumerateArray()) { array.Add(PtrRecord.DeserializePtrRecord(item)); } ptrRecords = array; continue; } if (property0.NameEquals("SRVRecords")) { if (property0.Value.ValueKind == JsonValueKind.Null) { property0.ThrowNonNullablePropertyIsNull(); continue; } List <SrvRecord> array = new List <SrvRecord>(); foreach (var item in property0.Value.EnumerateArray()) { array.Add(SrvRecord.DeserializeSrvRecord(item)); } srvRecords = array; continue; } if (property0.NameEquals("TXTRecords")) { if (property0.Value.ValueKind == JsonValueKind.Null) { property0.ThrowNonNullablePropertyIsNull(); continue; } List <TxtRecord> array = new List <TxtRecord>(); foreach (var item in property0.Value.EnumerateArray()) { array.Add(TxtRecord.DeserializeTxtRecord(item)); } txtRecords = array; continue; } if (property0.NameEquals("CNAMERecord")) { if (property0.Value.ValueKind == JsonValueKind.Null) { property0.ThrowNonNullablePropertyIsNull(); continue; } cnameRecord = CnameRecord.DeserializeCnameRecord(property0.Value); continue; } if (property0.NameEquals("SOARecord")) { if (property0.Value.ValueKind == JsonValueKind.Null) { property0.ThrowNonNullablePropertyIsNull(); continue; } soaRecord = SoaRecord.DeserializeSoaRecord(property0.Value); continue; } if (property0.NameEquals("caaRecords")) { if (property0.Value.ValueKind == JsonValueKind.Null) { property0.ThrowNonNullablePropertyIsNull(); continue; } List <CaaRecord> array = new List <CaaRecord>(); foreach (var item in property0.Value.EnumerateArray()) { array.Add(CaaRecord.DeserializeCaaRecord(item)); } caaRecords = array; continue; } } continue; } } return(new RecordSetData(id, name, type, systemData, etag.Value, Optional.ToDictionary(metadata), Optional.ToNullable(ttl), fqdn.Value, provisioningState.Value, targetResource, Optional.ToList(aRecords), Optional.ToList(aaaaRecords), Optional.ToList(mxRecords), Optional.ToList(nsRecords), Optional.ToList(ptrRecords), Optional.ToList(srvRecords), Optional.ToList(txtRecords), cnameRecord.Value, soaRecord.Value, Optional.ToList(caaRecords))); }
internal virtual void AssertEquality(PtrRecord expected, PtrRecord actual) { Assert.AreEqual(expected.DomainName, actual.DomainName, "Should be equal"); }
public DnsResourceRecord GetRecord(ResourceRecordInfo info) { if (info == null) { throw new ArgumentNullException(nameof(info)); } var oldIndex = _reader.Index; DnsResourceRecord result; switch (info.RecordType) { case ResourceRecordType.A: result = new ARecord(info, _reader.ReadIPAddress()); break; case ResourceRecordType.NS: result = new NsRecord(info, _reader.ReadDnsName()); break; case ResourceRecordType.CNAME: result = new CNameRecord(info, _reader.ReadDnsName()); break; case ResourceRecordType.SOA: result = ResolveSoaRecord(info); break; case ResourceRecordType.MB: result = new MbRecord(info, _reader.ReadDnsName()); break; case ResourceRecordType.MG: result = new MgRecord(info, _reader.ReadDnsName()); break; case ResourceRecordType.MR: result = new MrRecord(info, _reader.ReadDnsName()); break; case ResourceRecordType.NULL: result = new NullRecord(info, _reader.ReadBytes(info.RawDataLength).ToArray()); break; case ResourceRecordType.WKS: result = ResolveWksRecord(info); break; case ResourceRecordType.PTR: result = new PtrRecord(info, _reader.ReadDnsName()); break; case ResourceRecordType.HINFO: result = new HInfoRecord(info, _reader.ReadStringWithLengthPrefix(), _reader.ReadStringWithLengthPrefix()); break; case ResourceRecordType.MINFO: result = new MInfoRecord(info, _reader.ReadDnsName(), _reader.ReadDnsName()); break; case ResourceRecordType.MX: result = ResolveMXRecord(info); break; case ResourceRecordType.TXT: result = ResolveTXTRecord(info); break; case ResourceRecordType.RP: result = new RpRecord(info, _reader.ReadDnsName(), _reader.ReadDnsName()); break; case ResourceRecordType.AFSDB: result = new AfsDbRecord(info, (AfsType)_reader.ReadUInt16NetworkOrder(), _reader.ReadDnsName()); break; case ResourceRecordType.AAAA: result = new AaaaRecord(info, _reader.ReadIPv6Address()); break; case ResourceRecordType.SRV: result = ResolveSrvRecord(info); break; case ResourceRecordType.OPT: result = ResolveOptRecord(info); break; case ResourceRecordType.URI: result = ResolveUriRecord(info); break; case ResourceRecordType.CAA: result = ResolveCaaRecord(info); break; case ResourceRecordType.SSHFP: result = ResolveSshfpRecord(info); break; default: result = new UnknownRecord(info, _reader.ReadBytes(info.RawDataLength).ToArray()); break; } // sanity check _reader.SanitizeResult(oldIndex + info.RawDataLength, info.RawDataLength); return(result); }
private static (List <dynamic> list, int statusCode) ResolveOverHttps(string clientIpAddress, string domainName, bool proxyEnable = false, IWebProxy wProxy = null, RecordType type = RecordType.A) { string dnsStr; List <dynamic> recordList = new List <dynamic>(); using (WebClient webClient = new WebClient()) { webClient.Headers["User-Agent"] = "AuroraDNSC/0.1"; if (proxyEnable) { webClient.Proxy = wProxy; } dnsStr = webClient.DownloadString( ADnsSetting.HttpsDnsUrl + @"?ct=application/dns-json&" + $"name={domainName}&type={type.ToString().ToUpper()}&edns_client_subnet={clientIpAddress}"); } JsonValue dnsJsonValue = Json.Parse(dnsStr); int statusCode = dnsJsonValue.AsObjectGetInt("Status"); if (statusCode != 0) { return(new List <dynamic>(), statusCode); } if (dnsStr.Contains("\"Answer\"")) { var dnsAnswerJsonList = dnsJsonValue.AsObjectGetArray("Answer"); foreach (var itemJsonValue in dnsAnswerJsonList) { string answerAddr = itemJsonValue.AsObjectGetString("data"); string answerDomainName = itemJsonValue.AsObjectGetString("name"); int answerType = itemJsonValue.AsObjectGetInt("type"); int ttl = itemJsonValue.AsObjectGetInt("TTL"); if (type == RecordType.A) { if (Convert.ToInt32(RecordType.A) == answerType) { ARecord aRecord = new ARecord( DomainName.Parse(answerDomainName), ttl, IPAddress.Parse(answerAddr)); recordList.Add(aRecord); } else if (Convert.ToInt32(RecordType.CName) == answerType) { CNameRecord cRecord = new CNameRecord( DomainName.Parse(answerDomainName), ttl, DomainName.Parse(answerAddr)); recordList.Add(cRecord); //recordList.AddRange(ResolveOverHttps(clientIpAddress,answerAddr)); //return recordList; } } else if (type == RecordType.Aaaa && ADnsSetting.IPv6Enable) { if (Convert.ToInt32(RecordType.Aaaa) == answerType) { AaaaRecord aaaaRecord = new AaaaRecord( DomainName.Parse(answerDomainName), ttl, IPAddress.Parse(answerAddr)); recordList.Add(aaaaRecord); } else if (Convert.ToInt32(RecordType.CName) == answerType) { CNameRecord cRecord = new CNameRecord( DomainName.Parse(answerDomainName), ttl, DomainName.Parse(answerAddr)); recordList.Add(cRecord); } } else if (type == RecordType.CName && answerType == Convert.ToInt32(RecordType.CName)) { CNameRecord cRecord = new CNameRecord( DomainName.Parse(answerDomainName), ttl, DomainName.Parse(answerAddr)); recordList.Add(cRecord); } else if (type == RecordType.Ns && answerType == Convert.ToInt32(RecordType.Ns)) { NsRecord nsRecord = new NsRecord( DomainName.Parse(answerDomainName), ttl, DomainName.Parse(answerAddr)); recordList.Add(nsRecord); } else if (type == RecordType.Mx && answerType == Convert.ToInt32(RecordType.Mx)) { MxRecord mxRecord = new MxRecord( DomainName.Parse(answerDomainName), ttl, ushort.Parse(answerAddr.Split(' ')[0]), DomainName.Parse(answerAddr.Split(' ')[1])); recordList.Add(mxRecord); } else if (type == RecordType.Txt && answerType == Convert.ToInt32(RecordType.Txt)) { TxtRecord txtRecord = new TxtRecord(DomainName.Parse(answerDomainName), ttl, answerAddr); recordList.Add(txtRecord); } else if (type == RecordType.Ptr && answerType == Convert.ToInt32(RecordType.Ptr)) { PtrRecord ptrRecord = new PtrRecord( DomainName.Parse(answerDomainName), ttl, DomainName.Parse(answerAddr)); recordList.Add(ptrRecord); } } } return(recordList, statusCode); }
private void DoQueryCommand(string[] args) { DnsName qname; DnsQueryType ttype; DnsQueryType qtype = this.DefaultQueryType; DnsQueryClass tclass; DnsQueryClass qclass = this.DefaultQueryClass; string qnameArg = args[args.Length - 1]; IPAddress taddr; IPEndPoint qserver = null; for (int i = 0; i < args.Length - 1; ++i) { if (args[i][0] == '@') { int serverIndex; string arg = args[i].Substring(1); if (int.TryParse(arg, out serverIndex)) { if (serverIndex < 0 || serverIndex > this.Resolver.Servers.Count - 1) { WriteUsage("@server: {0} is not a valid forward server index (0-{1})", arg, this.Resolver.Servers.Count - 1); return; } qserver = this.Resolver.Servers[serverIndex]; } else if (IPAddress.TryParse(arg, out taddr) || TryGetHostAddress(arg, out taddr)) { qserver = new IPEndPoint(taddr, DnsTransport.DnsPort); } else { WriteUsage("@server: '{0}' is not a valid server/ip/index or it could not be resolved", arg); return; } continue; } if (TryParseEnum(args[i], out ttype)) { qtype = ttype; continue; } if (TryParseEnum(args[i], out tclass)) { qclass = tclass; continue; } WriteUsage("qtype,qclass: '{0}' is not a value qtype or qclass", args[i]); return; } if (qtype == DnsQueryType.Ptr) { if (!IPAddress.TryParse(qnameArg, out taddr)) { WriteUsage("qname: '{0}' is not a valid ip address", qnameArg); return; } qname = PtrRecord.MakeName(taddr); } else if (DnsName.TryParse(qnameArg, out qname)) { if (qname.Kind == DnsNameKind.Relative && this.NameSuffix != null) { qname = qname.Concat(this.NameSuffix); } } else { WriteUsage("qname: '{0}' is not a valid qname", qnameArg); return; } DoQueryCommand(new DnsQuestion(qname, qtype, qclass), qserver); }
internal static PtrRecordSetData DeserializePtrRecordSetData(JsonElement element) { Optional <string> etag = default; ResourceIdentifier id = default; string name = default; ResourceType type = default; SystemData systemData = default; Optional <IDictionary <string, string> > metadata = default; Optional <long> ttl = default; Optional <string> fqdn = default; Optional <string> provisioningState = default; Optional <WritableSubResource> targetResource = default; Optional <IList <PtrRecord> > ptrRecords = default; foreach (var property in element.EnumerateObject()) { if (property.NameEquals("etag")) { etag = property.Value.GetString(); continue; } if (property.NameEquals("id")) { id = new ResourceIdentifier(property.Value.GetString()); continue; } if (property.NameEquals("name")) { name = property.Value.GetString(); continue; } if (property.NameEquals("type")) { type = property.Value.GetString(); continue; } if (property.NameEquals("systemData")) { systemData = JsonSerializer.Deserialize <SystemData>(property.Value.ToString()); continue; } if (property.NameEquals("properties")) { if (property.Value.ValueKind == JsonValueKind.Null) { property.ThrowNonNullablePropertyIsNull(); continue; } foreach (var property0 in property.Value.EnumerateObject()) { if (property0.NameEquals("metadata")) { if (property0.Value.ValueKind == JsonValueKind.Null) { property0.ThrowNonNullablePropertyIsNull(); continue; } Dictionary <string, string> dictionary = new Dictionary <string, string>(); foreach (var property1 in property0.Value.EnumerateObject()) { dictionary.Add(property1.Name, property1.Value.GetString()); } metadata = dictionary; continue; } if (property0.NameEquals("TTL")) { if (property0.Value.ValueKind == JsonValueKind.Null) { property0.ThrowNonNullablePropertyIsNull(); continue; } ttl = property0.Value.GetInt64(); continue; } if (property0.NameEquals("fqdn")) { fqdn = property0.Value.GetString(); continue; } if (property0.NameEquals("provisioningState")) { provisioningState = property0.Value.GetString(); continue; } if (property0.NameEquals("targetResource")) { if (property0.Value.ValueKind == JsonValueKind.Null) { property0.ThrowNonNullablePropertyIsNull(); continue; } targetResource = JsonSerializer.Deserialize <WritableSubResource>(property0.Value.ToString()); continue; } if (property0.NameEquals("PTRRecords")) { if (property0.Value.ValueKind == JsonValueKind.Null) { property0.ThrowNonNullablePropertyIsNull(); continue; } List <PtrRecord> array = new List <PtrRecord>(); foreach (var item in property0.Value.EnumerateArray()) { array.Add(PtrRecord.DeserializePtrRecord(item)); } ptrRecords = array; continue; } } continue; } } return(new PtrRecordSetData(id, name, type, systemData, etag.Value, Optional.ToDictionary(metadata), Optional.ToNullable(ttl), fqdn.Value, provisioningState.Value, targetResource, Optional.ToList(ptrRecords))); }
public static (List <DnsRecordBase> list, ReturnCode statusCode) ResolveOverHttpsByDnsJson(string clientIpAddress, string domainName, string dohUrl, bool proxyEnable = false, IWebProxy wProxy = null, RecordType type = RecordType.A) { string dnsStr; List <DnsRecordBase> recordList = new List <DnsRecordBase>(); try { dnsStr = MyCurl.GetString(dohUrl + @"?ct=application/dns-json&" + $"name={domainName}&type={type.ToString().ToUpper()}&edns_client_subnet={clientIpAddress}", DnsSettings.Http2Enable, proxyEnable, wProxy, DnsSettings.AllowAutoRedirect); } catch (WebException e) { HttpWebResponse response = (HttpWebResponse)e.Response; try { BackgroundLog($@"| - Catch WebException : {Convert.ToInt32(response.StatusCode)} {response.StatusCode} | {e.Status} | {domainName} | {response.ResponseUri}"); if (DnsSettings.HTTPStatusNotify) { MainWindow.NotifyIcon.ShowBalloonTip(360, "AuroraDNS - 错误", $"异常 :{Convert.ToInt32(response.StatusCode)} {response.StatusCode} {Environment.NewLine} {domainName}", ToolTipIcon.Warning); } if (response.StatusCode == HttpStatusCode.BadRequest) { DnsSettings.DnsMsgEnable = true; } } catch (Exception exception) { BackgroundLog($@"| - Catch WebException : {exception.Message} | {e.Status} | {domainName} | {dohUrl}" + @"?ct=application/dns-json&" + $"name={domainName}&type={type.ToString().ToUpper()}&edns_client_subnet={clientIpAddress}"); if (DnsSettings.HTTPStatusNotify) { MainWindow.NotifyIcon.ShowBalloonTip(360, "AuroraDNS - 错误", $"异常 : {exception.Message} {Environment.NewLine} {domainName}", ToolTipIcon.Warning); } } if (dohUrl != DnsSettings.HttpsDnsUrl) { return(new List <DnsRecordBase>(), ReturnCode.ServerFailure); } BackgroundLog($@"| -- SecondDoH : {DnsSettings.SecondHttpsDnsUrl}"); return(ResolveOverHttpsByDnsJson(clientIpAddress, domainName, DnsSettings.SecondHttpsDnsUrl, proxyEnable, wProxy, type)); } JsonValue dnsJsonValue = Json.Parse(dnsStr); int statusCode = dnsJsonValue.AsObjectGetInt("Status"); if (statusCode != 0) { return(new List <DnsRecordBase>(), (ReturnCode)statusCode); } if (dnsStr.Contains("\"Answer\"")) { var dnsAnswerJsonList = dnsJsonValue.AsObjectGetArray("Answer"); foreach (var itemJsonValue in dnsAnswerJsonList) { string answerAddr = itemJsonValue.AsObjectGetString("data"); string answerDomainName = itemJsonValue.AsObjectGetString("name"); int answerType = itemJsonValue.AsObjectGetInt("type"); int ttl = itemJsonValue.AsObjectGetInt("TTL"); switch (type) { case RecordType.A when Convert.ToInt32(RecordType.A) == answerType && !DnsSettings.Ipv4Disable: { ARecord aRecord = new ARecord( DomainName.Parse(answerDomainName), ttl, IPAddress.Parse(answerAddr)); recordList.Add(aRecord); break; } case RecordType.A: { if (Convert.ToInt32(RecordType.CName) == answerType) { CNameRecord cRecord = new CNameRecord( DomainName.Parse(answerDomainName), ttl, DomainName.Parse(answerAddr)); recordList.Add(cRecord); //recordList.AddRange(ResolveOverHttps(clientIpAddress,answerAddr)); //return recordList; } break; } case RecordType.Aaaa when Convert.ToInt32(RecordType.Aaaa) == answerType && !DnsSettings.Ipv6Disable: { AaaaRecord aaaaRecord = new AaaaRecord( DomainName.Parse(answerDomainName), ttl, IPAddress.Parse(answerAddr)); recordList.Add(aaaaRecord); break; } case RecordType.Aaaa: { if (Convert.ToInt32(RecordType.CName) == answerType) { CNameRecord cRecord = new CNameRecord( DomainName.Parse(answerDomainName), ttl, DomainName.Parse(answerAddr)); recordList.Add(cRecord); } break; } case RecordType.CName when answerType == Convert.ToInt32(RecordType.CName): { CNameRecord cRecord = new CNameRecord( DomainName.Parse(answerDomainName), ttl, DomainName.Parse(answerAddr)); recordList.Add(cRecord); break; } case RecordType.Ns when answerType == Convert.ToInt32(RecordType.Ns): { NsRecord nsRecord = new NsRecord( DomainName.Parse(answerDomainName), ttl, DomainName.Parse(answerAddr)); recordList.Add(nsRecord); break; } case RecordType.Mx when answerType == Convert.ToInt32(RecordType.Mx): { MxRecord mxRecord = new MxRecord( DomainName.Parse(answerDomainName), ttl, ushort.Parse(answerAddr.Split(' ')[0]), DomainName.Parse(answerAddr.Split(' ')[1])); recordList.Add(mxRecord); break; } case RecordType.Txt when answerType == Convert.ToInt32(RecordType.Txt): { TxtRecord txtRecord = new TxtRecord(DomainName.Parse(answerDomainName), ttl, answerAddr); recordList.Add(txtRecord); break; } case RecordType.Ptr when answerType == Convert.ToInt32(RecordType.Ptr): { PtrRecord ptrRecord = new PtrRecord( DomainName.Parse(answerDomainName), ttl, DomainName.Parse(answerAddr)); recordList.Add(ptrRecord); break; } default: statusCode = Convert.ToInt32(ReturnCode.ServerFailure); break; } } } return(recordList, (ReturnCode)statusCode); }
public DnsResourceRecord GetRecord(ResourceRecordInfo info) { if (info == null) { throw new ArgumentNullException(nameof(info)); } var oldIndex = _reader.Index; DnsResourceRecord result; switch (info.RecordType) { case ResourceRecordType.A: result = new ARecord(info, _reader.ReadIPAddress()); break; case ResourceRecordType.NS: result = new NsRecord(info, _reader.ReadDnsName()); break; case ResourceRecordType.CNAME: result = new CNameRecord(info, _reader.ReadDnsName()); break; case ResourceRecordType.SOA: result = ResolveSoaRecord(info); break; case ResourceRecordType.MB: result = new MbRecord(info, _reader.ReadDnsName()); break; case ResourceRecordType.MG: result = new MgRecord(info, _reader.ReadDnsName()); break; case ResourceRecordType.MR: result = new MrRecord(info, _reader.ReadDnsName()); break; case ResourceRecordType.NULL: result = new NullRecord(info, _reader.ReadBytes(info.RawDataLength).ToArray()); break; case ResourceRecordType.WKS: result = ResolveWksRecord(info); break; case ResourceRecordType.PTR: result = new PtrRecord(info, _reader.ReadDnsName()); break; case ResourceRecordType.HINFO: result = new HInfoRecord(info, _reader.ReadString(), _reader.ReadString()); break; case ResourceRecordType.MINFO: result = new MInfoRecord(info, _reader.ReadDnsName(), _reader.ReadDnsName()); break; case ResourceRecordType.MX: result = ResolveMXRecord(info); break; case ResourceRecordType.TXT: result = ResolveTXTRecord(info); break; case ResourceRecordType.RP: result = new RpRecord(info, _reader.ReadDnsName(), _reader.ReadDnsName()); break; case ResourceRecordType.AFSDB: result = new AfsDbRecord(info, (AfsType)_reader.ReadUInt16NetworkOrder(), _reader.ReadDnsName()); break; case ResourceRecordType.AAAA: result = new AaaaRecord(info, _reader.ReadIPv6Address()); break; case ResourceRecordType.SRV: result = ResolveSrvRecord(info); break; case ResourceRecordType.OPT: result = ResolveOptRecord(info); break; case ResourceRecordType.URI: result = ResolveUriRecord(info); break; case ResourceRecordType.CAA: result = ResolveCaaRecord(info); break; default: // update reader index because we don't read full data for the empty record _reader.Index += info.RawDataLength; result = new EmptyRecord(info); break; } // sanity check if (_reader.Index != oldIndex + info.RawDataLength) { throw new InvalidOperationException("Record reader index out of sync."); } return(result); }
public override void ExecuteCmdlet() { DnsRecordBase result = null; switch (this.ParameterSetName) { case ParameterSetA: { result = new ARecord { Ipv4Address = this.Ipv4Address }; break; } case ParameterSetAaaa: { result = new AaaaRecord { Ipv6Address = this.Ipv6Address }; break; } case ParameterSetMx: { result = new MxRecord { Preference = this.Preference, Exchange = this.Exchange }; break; } case ParameterSetNs: { result = new NsRecord { Nsdname = this.Nsdname }; break; } case ParameterSetSrv: { result = new SrvRecord { Priority = this.Priority, Port = this.Port, Target = this.Target, Weight = this.Weight }; break; } case ParameterSetTxt: { result = new TxtRecord { Value = this.Value }; break; } case ParameterSetCName: { result = new CnameRecord { Cname = this.Cname }; break; } case ParameterSetPtr: { result = new PtrRecord {Ptrdname = this.Ptrdname}; break; } default: { throw new PSArgumentException(string.Format(ProjectResources.Error_UnknownParameterSetName, this.ParameterSetName)); } } WriteObject(result); }