public void ParsesBasicFields()
{
byte[] rawBytes = { 0x45, 0x00, 0x00, 0x50, 0x00, 0x00, 0x40, 0x00, 0x40, 0x11
, 0xb6, 0xce, 0xc0, 0xa8, 0x01, 0x03, 0xc0, 0xa8, 0x01, 0x7b, 0x80, 0x0d,
0xf1, 0x00, 0x00, 0x3c, 0x89, 0x11, 0xec, 0x14, 0x61, 0x11, 0x00, 0x00,
0x00, 0xfe, 0x09, 0x65, 0x1b, 0xbb, 0x9f, 0xa2, 0x70, 0x43, 0x74, 0x90,
0x9c, 0x29, 0x13, 0xbb, 0x34, 0x92, 0x14, 0x27, 0x25, 0xdf, 0x1b, 0x8f,
0x9f, 0xd8, 0xb7, 0xc4, 0xc5, 0xa6, 0x07, 0x36, 0xca, 0xce, 0x11, 0x3b,
0x32, 0xcd, 0x87, 0x1c, 0x24, 0x2d, 0xad, 0x15, 0xc4, 0x0f };
IPv4 packet;
var parseResult = IPv4Factory.Instance.TryParse(rawBytes, out packet);
parseResult.Should().BeTrue();
((int)packet.Version).Should().Be(4);
((int)packet.HeaderLength).Should().Be(5);
packet.DifferentiatedServices.Should().Be(0);
packet.TotalLength.Should().Be(80);
packet.ID.Should().Be(0);
packet.ReservedFlag.Should().Be(false);
packet.DontFragmentFlag.Should().Be(true);
packet.MoreFragmentsFlag.Should().Be(false);
packet.FragOff.Should().Be(0);
packet.TTL.Should().Be(64);
packet.Protocol.Should().Be(17);
packet.HeaderChecksum.Should().Be(46798);
packet.SourceAddress.Should().Be(IPv4Address.Parse("192.168.1.3"));
packet.DestAddress.Should().Be(IPv4Address.Parse("192.168.1.123"));
}
public void ParseIPv4String_001()
{
var _IPv4String = "141.24.12.2";
var _IPv4Address = IPv4Address.Parse(_IPv4String);
Assert.AreEqual(_IPv4String, _IPv4Address.ToString());
}
public void CompareIPv4Addresses()
{
var a = IPv4Address.Parse("141.24.12.2");
var b = IPv4Address.Parse("127.0.0.1");
Assert.IsTrue(a.CompareTo(b) > 0);
}
public void TestMinimizeTunet()
{
var netsMust = new IPv4Network[]
{
new IPv4Network(IPv4Address.Parse("128.130.0.0"), 15),
new IPv4Network(IPv4Address.Parse("192.35.240.0"), 22),
new IPv4Network(IPv4Address.Parse("192.35.244.0"), 24),
new IPv4Network(IPv4Address.Parse("193.170.72.0"), 21),
new IPv4Network(IPv4Address.Parse("193.170.72.0"), 22),
new IPv4Network(IPv4Address.Parse("193.170.76.0"), 23),
new IPv4Network(IPv4Address.Parse("193.170.78.0"), 24),
new IPv4Network(IPv4Address.Parse("193.170.79.0"), 24),
};
List <IPNetwork <IPv4Address> > netsMinimized = Minimize.MinimizeSubnets(netsMust,
(addr, mask) => new IPv4Network(addr, mask));
foreach (IPNetwork <IPv4Address> minNet in netsMinimized)
{
for (IPv4Address addr = minNet.BaseAddress; addr.CompareTo(minNet.LastAddressOfSubnet) <= 0; addr = addr + 1)
{
bool contained = false;
foreach (IPNetwork <IPv4Address> origNet in netsMust)
{
if (origNet.Contains(addr))
{
contained = true;
break;
}
}
if (!contained)
{
Assert.True(false, $"IP address {addr} in minimized net {minNet} not contained in any original net");
}
}
}
foreach (IPNetwork <IPv4Address> origNet in netsMust)
{
for (IPv4Address addr = origNet.BaseAddress; addr.CompareTo(origNet.LastAddressOfSubnet) <= 0; addr = addr + 1)
{
bool contained = false;
foreach (IPNetwork <IPv4Address> minNet in netsMinimized)
{
if (minNet.Contains(addr))
{
contained = true;
break;
}
}
if (!contained)
{
Assert.True(false, $"IP address {addr} in original net {origNet} not contained in any minimized net");
}
}
}
}
public void IPv4AddressesAreNotEqual()
{
var a = IPv4Address.Parse("141.24.12.2");
var b = IPv4Address.Parse("127.0.0.1");
Assert.IsFalse(a.Equals(b));
Assert.IsFalse(a == b);
Assert.IsTrue(a != b);
Assert.AreNotEqual(a, b);
}
private void btApply_Click(object sender, EventArgs e)
{
try {
currentAddress = IPv4Address.Parse(tbIpAddress.Text);
} catch (InvalidIPv4AddressFormatException exception) {
MessageBox.Show(exception.Message);
return;
}
// MessageBox.Show(ip.ToCompleteString());
presenter.UpdateView(currentAddress);
btPing.Enabled = currentAddress.IsHostAddress;
btSave.Enabled = true;
// MessageBox.Show($"{ip} \nMaska: {ip.Mask.Value.ToBinaryString()}");
}
/// <summary>
/// Create a new DNS cache.
/// </summary>
/// <param name="CleanUpEvery">How often to remove outdated entries from DNS cache.</param>
public DNSCache(TimeSpan?CleanUpEvery = null)
{
_DNSCache = new Dictionary <String, DNSCacheEntry>();
_CleanUpTimer = new Timer(RemoveExpiredCacheEntries,
null,
CleanUpEvery.HasValue ? CleanUpEvery.Value : TimeSpan.FromMinutes(1), // delay one round!
CleanUpEvery.HasValue ? CleanUpEvery.Value : TimeSpan.FromMinutes(1));
_DNSCache.Add("localhost",
new DNSCacheEntry(RefreshTime: DateTime.Now,
EndOfLife: DateTime.Now + TimeSpan.FromDays(3650),
DNSInfo: new DNSInfo(Origin: new IPSocket(IPv4Address.Parse("127.0.0.1"), IPPort.Parse(53)),
QueryId: 0,
IsAuthorativeAnswer: true,
IsTruncated: false,
RecursionDesired: false,
RecursionAvailable: false,
ResponseCode: DNSResponseCodes.NoError,
Answers: new ADNSResourceRecord[] {
new A("localhost", DNSQueryClasses.IN, TimeSpan.FromDays(3650), IPv4Address.Parse("127.0.0.1")),
new AAAA("localhost", DNSQueryClasses.IN, TimeSpan.FromDays(3650), IPv6Address.Parse("::1"))
},
Authorities: new ADNSResourceRecord[0],
AdditionalRecords: new ADNSResourceRecord[0])
));
_DNSCache.Add("loopback",
new DNSCacheEntry(RefreshTime: DateTime.Now,
EndOfLife: DateTime.Now + TimeSpan.FromDays(3650),
DNSInfo: new DNSInfo(Origin: new IPSocket(IPv4Address.Parse("127.0.0.1"), IPPort.Parse(53)),
QueryId: 0,
IsAuthorativeAnswer: true,
IsTruncated: false,
RecursionDesired: false,
RecursionAvailable: false,
ResponseCode: DNSResponseCodes.NoError,
Answers: new ADNSResourceRecord[] {
new A("loopback", DNSQueryClasses.IN, TimeSpan.FromDays(3650), IPv4Address.Parse("127.0.0.1")),
new AAAA("loopback", DNSQueryClasses.IN, TimeSpan.FromDays(3650), IPv6Address.Parse("::1"))
},
Authorities: new ADNSResourceRecord[0],
AdditionalRecords: new ADNSResourceRecord[0])
));
}
public void CorrectsFields()
{
// This test is poor. It seems the original test for CorrectFields didn't set an IPv4 parent, and thus was basically worthless.
EthernetII packet;
EthernetIIFactory.Instance.TryParse(new byte[]
{
0x64, 0x70, 0x02, 0xd1, 0x9e, 0x6f, 0x00, 0x23, 0x54, 0x80, 0xb3, 0xca, 0x08, 0x00, 0x45, 0x00, 0x00, 0x21, 0x2d, 0x57, 0x00, 0x00, 0x80, 0x11, 0x80, 0xbd, 0xc0, 0xa8, 0x05, 0x68, 0xc0, 0xa8, 0x05, 0xff, 0x22, 0xb9, 0x22, 0xb9, 0x00, 0x0d, 0x80, 0x30, 0x02, 0xe1, 0x69, 0x98, 0x41,
}, out packet).Should().BeTrue();
var ip = (IPv4 <UDP>)packet.Payload;
ip.Payload.Checksum.Should().Be(0x8030);
packet.CorrectFields();
ip.Payload.Checksum.Should().Be(0x8030);
ip.DestAddress = IPv4Address.Parse("192.168.3.101");
packet.CorrectFields();
ip.Payload.Checksum.Should().Be(0x82ca);
}
/// <summary>
/// Execute the given HTTP request and return its result.
/// </summary>
/// <param name="Request">A HTTP request.</param>
/// <param name="RequestLogDelegate">A delegate for logging the HTTP request.</param>
/// <param name="ResponseLogDelegate">A delegate for logging the HTTP request/response.</param>
/// <param name="Timeout">An optional timeout.</param>
/// <param name="CancellationToken">A cancellation token.</param>
public async Task <HTTPResponse> Execute(HTTPRequest Request,
ClientRequestLogHandler RequestLogDelegate = null,
ClientResponseLogHandler ResponseLogDelegate = null,
TimeSpan?Timeout = null,
CancellationToken?CancellationToken = null)
{
#region Call the optional HTTP request log delegate
try
{
RequestLogDelegate?.Invoke(DateTime.Now, this, Request);
}
catch (Exception e)
{
e.Log(nameof(HTTPClient) + "." + nameof(RequestLogDelegate));
}
#endregion
var task = Task <HTTPResponse> .Factory.StartNew(() => {
HTTPResponse Response = null;
try
{
if (Environment.MachineName.Contains("QUAD2QUANTOR") && Request.URI.Contains("eRoaming"))
{
throw new Exception("Catch me if you can!");
}
Thread.CurrentThread.Priority = ThreadPriority.BelowNormal;
#region Data
var HTTPHeaderBytes = new Byte[0];
var sw = new Stopwatch();
if (!Timeout.HasValue)
{
Timeout = TimeSpan.FromSeconds(60);
}
#endregion
#region Create TCP connection (possibly also do DNS lookups)
if (TCPClient == null)
{
System.Net.IPEndPoint _FinalIPEndPoint = null;
IIPAddress _ResolvedRemoteIPAddress = null;
if (RemoteIPAddress == null)
{
if (Hostname.Trim() == "127.0.0.1")
{
_ResolvedRemoteIPAddress = IPv4Address.Localhost;
}
else
{
var RegExpr = new Regex(@"\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\b");
if (RegExpr.IsMatch(Hostname))
{
_ResolvedRemoteIPAddress = IPv4Address.Parse(Hostname);
}
}
#region DNS lookup...
if (_ResolvedRemoteIPAddress == null)
{
try
{
var IPv4AddressTask = DNSClient.
Query <A>(Hostname).
ContinueWith(QueryTask => QueryTask.Result.
Select(ARecord => ARecord.IPv4Address).
FirstOrDefault());
IPv4AddressTask.Wait();
_ResolvedRemoteIPAddress = IPv4AddressTask.Result;
}
catch (Exception e)
{
Debug.WriteLine("[" + DateTime.Now + "] " + e.Message);
}
}
#endregion
}
else
{
_ResolvedRemoteIPAddress = RemoteIPAddress;
}
_FinalIPEndPoint = new System.Net.IPEndPoint(new System.Net.IPAddress(_ResolvedRemoteIPAddress.GetBytes()), RemotePort.ToInt32());
sw.Start();
TCPClient = new TcpClient();
TCPClient.Connect(_FinalIPEndPoint);
TCPClient.ReceiveTimeout = (Int32)Timeout.Value.TotalMilliseconds;
}
#endregion
#region Create (Crypto-)Stream
TCPStream = TCPClient.GetStream();
TCPStream.ReadTimeout = (Int32)Timeout.Value.TotalMilliseconds;
TLSStream = RemoteCertificateValidator != null
? new SslStream(TCPStream,
false,
RemoteCertificateValidator)
// ClientCertificateSelector,
//EncryptionPolicy.RequireEncryption)
: null;
if (TLSStream != null)
{
TLSStream.ReadTimeout = (Int32)Timeout.Value.TotalMilliseconds;
}
HTTPStream = null;
if (RemoteCertificateValidator != null)
{
HTTPStream = TLSStream;
TLSStream.AuthenticateAsClient(Hostname);//, new X509CertificateCollection(new X509Certificate[] { ClientCert }), SslProtocols.Default, false);
}
else
{
HTTPStream = TCPStream;
}
HTTPStream.ReadTimeout = (Int32)Timeout.Value.TotalMilliseconds;
#endregion
#region Send Request
HTTPStream.Write(String.Concat(Request.EntireRequestHeader,
Environment.NewLine,
Environment.NewLine).
ToUTF8Bytes());
var RequestBodyLength = Request.HTTPBody == null
? Request.ContentLength.HasValue ? (Int32)Request.ContentLength.Value : 0
: Request.ContentLength.HasValue ? Math.Min((Int32)Request.ContentLength.Value, Request.HTTPBody.Length) : Request.HTTPBody.Length;
if (RequestBodyLength > 0)
{
HTTPStream.Write(Request.HTTPBody, 0, RequestBodyLength);
}
var _MemoryStream = new MemoryStream();
var _Buffer = new Byte[10485760]; // 10 MBytes, a smaller value leads to read errors!
#endregion
#region Wait timeout for the server to react!
//Debug.WriteLine("[" + DateTime.Now + "] HTTPClient timeout: " + Timeout.Value.ToString());
while (!TCPStream.DataAvailable)
{
if (sw.ElapsedMilliseconds >= Timeout.Value.TotalMilliseconds)
{
TCPClient.Close();
throw new Exception("[" + DateTime.Now + "] Could not read from the TCP stream for " + sw.ElapsedMilliseconds + "ms!");
}
Thread.Sleep(1);
}
//Debug.WriteLine("[" + DateTime.Now + "] HTTPClient (" + TCPClient.Client.LocalEndPoint.ToString() + " -> " + RemoteSocket.ToString() + ") got first response after " + sw.ElapsedMilliseconds + "ms!");
#endregion
#region Read the entire HTTP header, and maybe some of the HTTP body
var CurrentDataLength = 0;
do
{
#region When data available, write it to the buffer...
while (TCPStream.DataAvailable)
{
CurrentDataLength = HTTPStream.Read(_Buffer, 0, _Buffer.Length);
if (CurrentDataLength > -1)
{
_MemoryStream.Write(_Buffer, 0, CurrentDataLength);
// Debug.WriteLine("[" + DateTime.Now + "] Read " + CurrentDataLength + " bytes from HTTP connection (" + TCPClient.Client.LocalEndPoint.ToString() + " -> " + RemoteSocket.ToString() + ") (" + sw.ElapsedMilliseconds + "ms)!");
}
}
#endregion
#region Check if the entire HTTP header was already read into the buffer
if (_MemoryStream.Length > 4)
{
var MemoryCopy = _MemoryStream.ToArray();
for (var pos = 3; pos < MemoryCopy.Length; pos++)
{
if (MemoryCopy[pos] == 0x0a &&
MemoryCopy[pos - 1] == 0x0d &&
MemoryCopy[pos - 2] == 0x0a &&
MemoryCopy[pos - 3] == 0x0d)
{
Array.Resize(ref HTTPHeaderBytes, pos - 3);
Array.Copy(MemoryCopy, 0, HTTPHeaderBytes, 0, pos - 3);
break;
}
}
//if (HTTPHeaderBytes.Length > 0)
// Debug.WriteLine("[" + DateTime.Now + "] End of (" + TCPClient.Client.LocalEndPoint.ToString() + " -> " + RemoteSocket.ToString() + ") HTTP header at " + HTTPHeaderBytes.Length + " bytes (" + sw.ElapsedMilliseconds + "ms)!");
}
#endregion
Thread.Sleep(1);
}
// Note: Delayed parts of the HTTP body may not be read into the buffer
// => Must be read later!
while (TCPStream.DataAvailable ||
((sw.ElapsedMilliseconds < HTTPStream.ReadTimeout) && HTTPHeaderBytes.Length == 0));
//Debug.WriteLine("[" + DateTime.Now + "] Finally read " + _MemoryStream.Length + " bytes of HTTP client (" + TCPClient.Client.LocalEndPoint.ToString() + " -> " + RemoteSocket.ToString() + ") data (" + sw.ElapsedMilliseconds + "ms)!");
#endregion
#region Copy HTTP header data and create HTTP response
if (HTTPHeaderBytes.Length == 0)
{
throw new ApplicationException(DateTime.Now + " Could not find the end of the HTTP protocol header!");
}
Response = HTTPResponse.Parse(HTTPHeaderBytes.ToUTF8String(),
Request);
#endregion
#region Read 'Content-Length' bytes...
// Copy only the number of bytes given within
// the HTTP header element 'Content-Length'!
if (Response.ContentLength.HasValue && Response.ContentLength.Value > 0)
{
_MemoryStream.Seek(HTTPHeaderBytes.Length + 4, SeekOrigin.Begin);
var _Read = _MemoryStream.Read(_Buffer, 0, _Buffer.Length);
var _StillToRead = (Int32)Response.ContentLength.Value - _Read;
Response.HTTPBodyStream.Write(_Buffer, 0, _Read);
var _CurrentBufferSize = 0;
do
{
while (TCPStream.DataAvailable && _StillToRead > 0)
{
_CurrentBufferSize = Math.Min(_Buffer.Length, (Int32)_StillToRead);
_Read = HTTPStream.Read(_Buffer, 0, _CurrentBufferSize);
Response.HTTPBodyStream.Write(_Buffer, 0, _Read);
_StillToRead -= _Read;
}
if (_StillToRead <= 0)
{
break;
}
Thread.Sleep(1);
}while (sw.ElapsedMilliseconds < HTTPStream.ReadTimeout);
Response.ContentStreamToArray();
}
#endregion
#region ...or read till timeout (e.g. for chunked transport)!
else
{
try
{
_MemoryStream.Seek(HTTPHeaderBytes.Length + 4, SeekOrigin.Begin);
Response.NewContentStream();
Response.HTTPBodyStream.Write(_Buffer, 0, _MemoryStream.Read(_Buffer, 0, _Buffer.Length));
var Retries = 0;
while (Retries < 10)
{
while (TCPStream.DataAvailable)
{
Response.HTTPBodyStream.Write(_Buffer, 0, HTTPStream.Read(_Buffer, 0, _Buffer.Length));
Retries = 0;
}
Thread.Sleep(10);
Retries++;
}
if (Response.TransferEncoding == "chunked")
{
//Debug.WriteLine(DateTime.Now + " Chunked encoding detected");
var TEContent = ((MemoryStream)Response.HTTPBodyStream).ToArray();
var TEString = TEContent.ToUTF8String();
var ReadBlockLength = true;
var TEMemStram = new MemoryStream();
var LastPos = 0;
var i = 0;
do
{
if (i > 2 &&
ReadBlockLength &&
TEContent[i - 1] == '\n' &&
TEContent[i - 2] == '\r')
{
var len = TEContent.ReadTEBlockLength(LastPos, i - LastPos - 2);
//Debug.WriteLine(DateTime.Now + " Chunked encoded block of length " + len + " bytes detected");
if (len == 0)
{
break;
}
if (i + len <= TEContent.Length)
{
TEMemStram.Write(TEContent, i, len);
i = i + len;
if (TEContent[i] == 0x0d)
{
i++;
}
if (i < TEContent.Length - 1)
{
if (TEContent[i] == 0x0a)
{
i++;
}
}
else
{
}
LastPos = i;
ReadBlockLength = false;
}
else
{
// Reaching this point seems to be an endless loop!
break;
}
}
else
{
ReadBlockLength = true;
i++;
}
} while (i < TEContent.Length);
Response.ContentStreamToArray(TEMemStram);
}
else
{
Response.ContentStreamToArray();
}
}
catch (Exception e)
{
Debug.WriteLine(DateTime.Now + " " + e.Message);
}
}
#endregion
#region Close connection if requested!
if (Response.Connection == null ||
Response.Connection == "close")
{
TCPClient.Close();
HTTPStream = null;
TCPClient = null;
}
#endregion
}
catch (Exception e)
{
#region Create a HTTP response for the exception...
while (e.InnerException != null)
{
e = e.InnerException;
}
Response = new HTTPResponseBuilder(Request,
HTTPStatusCode.BadRequest)
{
ContentType = HTTPContentType.JSON_UTF8,
Content = JSONObject.Create(new JProperty("Message", e.Message),
new JProperty("StackTrace", e.StackTrace)).
ToUTF8Bytes()
};
#endregion
}
#region Call the optional HTTP response log delegate
try
{
ResponseLogDelegate?.Invoke(DateTime.Now, this, Request, Response);
}
catch (Exception e2)
{
e2.Log(nameof(HTTPClient) + "." + nameof(ResponseLogDelegate));
}
#endregion
return(Response);
}, TaskCreationOptions.AttachedToParent);
return(await task);
}
public static DNSClient GoogleDNS()
{
return(new DNSClient(IPv4Address.Parse("8.8.8.8")));
}
public void ParseIPv4String_004()
{
IPv4Address.Parse("141.300.12.2");
}
public void ParseIPv4String_003()
{
IPv4Address.Parse("300.24.12.2");
}
public void ParseIPv4String_006()
{
IPv4Address.Parse("141.24.12.300");
}
public void ParseIPv4String_005()
{
IPv4Address.Parse("141.24.300.2");
}
/// <summary>
/// Main.
/// </summary>
/// <param name="myArgs">The arguments.</param>
public static void Main(String[] myArgs)
{
#region Start TCPServers
//var _TCPServer1 = new TCPServer(new IPv4Address(new Byte[] { 192, 168, 178, 31 }), new IPPort(2001), NewConnection =>
// {
// NewConnection.WriteToResponseStream("Hello world!" + Environment.NewLine + Environment.NewLine);
// NewConnection.Close();
// }, true);
//Console.WriteLine(_TCPServer1);
// The first line of the repose will be served from the CustomTCPConnection handler.
var _TCPServer2 = new TCPServer <CustomTCPConnection>(IPv4Address.Any, new IPPort(2002), NewConnection =>
{
NewConnection.WriteToResponseStream("...world!" + Environment.NewLine + Environment.NewLine);
NewConnection.Close();
}, true);
Console.WriteLine(_TCPServer2);
#endregion
#region Start HTTPServers
// Although the socket listens on IPv4Address.Any the service is
// configured to serve clients only on http://localhost:8181
// More details within DefaultHTTPService.cs
var _HTTPServer1 = new HTTPServer(IPv4Address.Any, new IPPort(8181), Autostart: true)
{
ServerName = "Default Hermod Demo"
};
Console.WriteLine(_HTTPServer1);
// This service uses a custom HTTPService defined within IRESTService.cs
var _HTTPServer2 = new HTTPServer <IRESTService>(IPv4Address.Any, IPPort.HTTP, Autostart: true)
{
ServerName = "Customized Hermod Demo"
};
Console.WriteLine(_HTTPServer2);
#endregion
#region UDP Servers
var _UDPServer1 = new UDPServer(new IPPort(5555), NewPacket =>
{
//NewPacket.Data = new Byte[10];
// NewPacket.Close();
}, true);
#endregion
var _client1 = new HTTPClient(IPv4Address.Localhost, IPPort.HTTP);
var _request0 = _client1.GET("/HelloWorld").
SetHost("localhorst").
AddAccept(HTTPContentType.TEXT_UTF8, 1);
var _request1 = _client1.GET("/HelloWorld").
SetHost("localhorst").
AddAccept(HTTPContentType.HTML_UTF8, 1);
//WriteRequest(_request0.EntireRequestHeader);
//_client1.Execute(_request0, response => WriteResponse(response.Content.ToUTF8String())).
// ContinueWith(HTTPClient => { WriteRequest(_request1.EntireRequestHeader); return HTTPClient.Result; }).
// ContinueWith(HTTPClient => HTTPClient.Result.Execute(_request1, response => WriteResponse(response.Content.ToUTF8String()))).
// Wait();
var _client2 = new HTTPClient(IPv4Address.Parse("188.40.47.229"), IPPort.HTTP);
var _requestA = _client2.GET("/").
SetProtocolVersion(HTTPVersion.HTTP_1_1).
SetHost("www.ahzf.de").
SetUserAgent("Hermod HTTP Client v0.1").
SetConnection("keep-alive").
AddAccept(HTTPContentType.HTML_UTF8, 1);
var _requestB = _client2.GET("/nfgj").
SetProtocolVersion(HTTPVersion.HTTP_1_1).
SetHost("www.ahzf.de").
SetUserAgent("Hermod HTTP Client v0.1").
SetConnection("keep-alive").
AddAccept(HTTPContentType.HTML_UTF8, 1);
WriteRequest(_requestA);
_client2.Execute(_requestA, response => WriteResponse(response)).
ContinueWith(Client => Client.Result.Execute(_requestB, response => WriteResponse(response)));
var _req23a = new HTTPRequestBuilder().
SetHTTPMethod(HTTPMethod.GET).
SetProtocolName("µHTTP").
SetProtocolVersion(new HTTPVersion(2, 0)).
SetHost("localhorst").
SetUserAgent("Hermod µHTTP Client").
SetContent("This the HTTP content...");
_req23a.QueryString.Add("name", "alice").
Add("friend", "bob").
Add("friend", "carol");
var _req23b = new HTTPRequestBuilder()
{
HTTPMethod = HTTPMethod.GET,
ProtocolName = "µHTTP",
ProtocolVersion = new HTTPVersion(2, 0),
Host = "localhorst",
UserAgent = "Hermod µHTTP Client",
Content = "This the HTTP content...".ToUTF8Bytes()
};
// var Response = new TCPClientRequest("localhost", 80).Send("GETTT / HTTP/1.1").FinishCurrentRequest().Response;
Console.ReadLine();
Console.WriteLine("done!");
}
public void ParseIPv4String_002()
{
IPv4Address.Parse("141.24.12");
}
/**
* Produces a new zone from an input XML file.
*/
public static DNSZone Unserialize(XmlDocument config)
{
DNSRecord start_of_authority = null;
var records = new List <DNSRecord>();
var relays = new List <EndPoint>();
if (config.DocumentElement.Name != "zone")
{
throw new InvalidDataException("Root element must be called zone");
}
foreach (var entry in config.DocumentElement.ChildNodes.OfType <XmlNode>())
{
if (entry.NodeType != XmlNodeType.Element)
{
logger.Trace("Ignoring node of type {0}", entry.NodeType);
continue;
}
bool is_record =
entry.Name == "A" ||
entry.Name == "NS" ||
entry.Name == "CNAME" ||
entry.Name == "MX" ||
entry.Name == "SOA" ||
entry.Name == "PTR" ||
entry.Name == "AAAA";
if (is_record)
{
if (entry.Attributes["name"] == null ||
entry.Attributes["class"] == null ||
entry.Attributes["ttl"] == null)
{
throw new InvalidDataException("Resource records must have 'name', 'class' and 'ttl' attributes");
}
var record_name = new Domain(entry.Attributes["name"].Value);
AddressClass record_class;
switch (entry.Attributes["class"].Value)
{
case "IN":
record_class = AddressClass.INTERNET;
break;
default:
throw new InvalidDataException("Only address class 'IN' is supported");
}
UInt32 record_ttl = 0;
try
{
record_ttl = UInt32.Parse(entry.Attributes["ttl"].Value);
}
catch (Exception err)
{
if (err is OverflowException || err is FormatException)
{
throw new InvalidDataException(entry.Attributes["ttl"].Value + " is not a valid TTL");
}
else
{
throw;
}
}
IDNSResource resource = null;
switch (entry.Name)
{
case "A":
if (entry.Attributes["address"] == null)
{
throw new InvalidDataException("A record must have address");
}
IPv4Address address;
try
{
address = IPv4Address.Parse(entry.Attributes["address"].Value);
}
catch (FormatException)
{
throw new InvalidDataException(entry.Attributes["address"].Value + " is not a valid IPv4 address");
}
resource = new AResource(address);
logger.Trace("A record: address={0}", ((AResource)resource).Address);
break;
case "NS":
if (entry.Attributes["nameserver"] == null)
{
throw new InvalidDataException("NS record must have a nameserver");
}
resource = new NSResource(new Domain(entry.Attributes["nameserver"].Value));
logger.Trace("NS record: nameserver={0}", ((NSResource)resource).Nameserver);
break;
case "CNAME":
if (entry.Attributes["alias"] == null)
{
throw new InvalidDataException("CNAME record must have an alias");
}
resource = new CNAMEResource(new Domain(entry.Attributes["alias"].Value));
logger.Trace("CNAME record: alias={0}", ((CNAMEResource)resource).Alias);
break;
case "MX":
if (entry.Attributes["priority"] == null ||
entry.Attributes["mailserver"] == null)
{
throw new InvalidDataException("MX record must have priority and mailserver");
}
var mailserver = new Domain(entry.Attributes["mailserver"].Value);
UInt16 preference = 0;
try
{
preference = UInt16.Parse(entry.Attributes["priority"].Value);
}
catch (Exception err)
{
if (err is OverflowException || err is FormatException)
{
throw new InvalidDataException(entry.Attributes["priority"].Value + " is not a valid priority value");
}
else
{
throw;
}
}
resource = new MXResource(preference, mailserver);
logger.Trace("MX record: priority={0} mailserver={1}",
((MXResource)resource).Preference,
((MXResource)resource).Mailserver);
break;
case "PTR":
if (entry.Attributes["pointer"] == null)
{
throw new InvalidDataException("PTR record must have pointer");
}
if (!reverse_zone_v4.IsSubdomain(record_name) && !reverse_zone_v6.IsSubdomain(record_name))
{
throw new InvalidDataException("PTR record be in the in-addr.arpa or ip6.arpa zone");
}
resource = new PTRResource(new Domain(entry.Attributes["pointer"].Value));
logger.Trace("PTR record: pointer={0}", ((PTRResource)resource).Pointer);
break;
case "AAAA":
if (entry.Attributes["address"] == null)
{
throw new InvalidDataException("AAAA record must have address");
}
IPv6Address v6address;
try
{
v6address = IPv6Address.Parse(entry.Attributes["address"].Value);
}
catch (FormatException)
{
throw new InvalidDataException(entry.Attributes["address"].Value + " is not a valid IPv4 address");
}
resource = new AAAAResource(v6address);
logger.Trace("AAAA record: address={0}", ((AAAAResource)resource).Address);
break;
case "SOA":
if (entry.Attributes["primary-ns"] == null ||
entry.Attributes["hostmaster"] == null ||
entry.Attributes["serial"] == null ||
entry.Attributes["refresh"] == null ||
entry.Attributes["retry"] == null ||
entry.Attributes["expire"] == null ||
entry.Attributes["min-ttl"] == null)
{
throw new InvalidDataException("SOA record missing one of: primary-ns, hostmaster, serial, refresh, retry, expire and min-ttl");
}
var primary_ns = new Domain(entry.Attributes["primary-ns"].Value);
var hostmaster = new Domain(entry.Attributes["hostmaster"].Value);
UInt32 serial = 0;
try
{
serial = UInt32.Parse(entry.Attributes["serial"].Value);
}
catch (Exception err)
{
if (err is OverflowException || err is FormatException)
{
throw new InvalidDataException(entry.Attributes["serial"].Value + " is not a valid serial number");
}
else
{
throw;
}
}
UInt32 refresh = 0;
try
{
refresh = UInt32.Parse(entry.Attributes["refresh"].Value);
}
catch (Exception err)
{
if (err is OverflowException || err is FormatException)
{
throw new InvalidDataException(entry.Attributes["refresh"].Value + " is not a valid refresh value");
}
else
{
throw;
}
}
UInt32 retry = 0;
try
{
retry = UInt32.Parse(entry.Attributes["retry"].Value);
}
catch (Exception err)
{
if (err is OverflowException || err is FormatException)
{
throw new InvalidDataException(entry.Attributes["retry"].Value + " is not a valid retry value");
}
else
{
throw;
}
}
UInt32 expire = 0;
try
{
expire = UInt32.Parse(entry.Attributes["expire"].Value);
}
catch (Exception err)
{
if (err is OverflowException || err is FormatException)
{
throw new InvalidDataException(entry.Attributes["expire"].Value + " is not a valid expire value");
}
else
{
throw;
}
}
UInt32 minttl = 0;
try
{
minttl = UInt32.Parse(entry.Attributes["min-ttl"].Value);
}
catch (Exception err)
{
if (err is OverflowException || err is FormatException)
{
throw new InvalidDataException(entry.Attributes["min-ttl"].Value + " is not a valid expire value");
}
else
{
throw;
}
}
resource = new SOAResource(primary_ns, hostmaster, serial, refresh, retry, expire, minttl);
logger.Trace("SOA record: primary-ns={0} hostmaster={1} serial={2} refresh={3} retry={4} expire={5} min-ttl={6}",
((SOAResource)resource).PrimaryNameServer,
((SOAResource)resource).Hostmaster,
((SOAResource)resource).Serial,
((SOAResource)resource).RefreshSeconds,
((SOAResource)resource).RetrySeconds,
((SOAResource)resource).ExpireSeconds,
((SOAResource)resource).MinimumTTL);
break;
}
var record = new DNSRecord(record_name, record_class, record_ttl, resource);
if (record.Resource.Type == ResourceRecordType.START_OF_AUTHORITY)
{
if (start_of_authority == null)
{
logger.Trace("Found SOA: {0}", record);
start_of_authority = record;
}
else
{
throw new InvalidDataException("Cannot have more than one SOA record in zone");
}
}
else
{
logger.Trace("Found other record: {0}", record);
records.Add(record);
}
}
else if (entry.Name == "relay")
{
if (entry.Attributes["address"] == null ||
entry.Attributes["port"] == null)
{
throw new InvalidDataException("relay record must have address and port");
}
IPAddress address;
int port;
try
{
address = IPAddress.Parse(entry.Attributes["address"].Value);
}
catch (FormatException)
{
throw new InvalidDataException(entry.Attributes["address"].Value + " is not a valid IPv4 address");
}
try
{
port = int.Parse(entry.Attributes["port"].Value);
}
catch (FormatException)
{
throw new InvalidDataException(entry.Attributes["port"].Value + " is not a valid port");
}
try
{
relays.Add(new IPEndPoint(address, port));
}
catch (ArgumentOutOfRangeException)
{
throw new InvalidDataException(entry.Attributes["port"].Value + " is not a valid port");
}
logger.Trace("Found relay: {0}:{1}", address, port);
}
else
{
throw new InvalidDataException(entry.Name + " is not a valid zone entry");
}
}
if (start_of_authority == null)
{
throw new InvalidDataException("Zone does not have SOA record");
}
var zone = new DNSZone(start_of_authority, relays.ToArray());
foreach (var record in records)
{
if (record.TimeToLive < ((SOAResource)start_of_authority.Resource).MinimumTTL)
{
logger.Trace("Correcting TTL: Record {0} has smaller TTL than SOA MinTTL {1}",
record, start_of_authority);
record.TimeToLive = ((SOAResource)start_of_authority.Resource).MinimumTTL;
}
zone.Add(record);
}
return(zone);
}
