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using org.dmxc.wkdt.Network; | ||
using System.Collections.Concurrent; | ||
using System.Numerics; | ||
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namespace org.dmxc.wkdt.Tests.Network | ||
{ | ||
public class IPv6Address_Tests | ||
{ | ||
[Test] | ||
public void TestIPv6Address() | ||
{ | ||
var address = IPv6Address.LocalHost; | ||
Assert.Multiple(() => | ||
{ | ||
Assert.That(IPv6Address.Empty.ToString(), Is.EqualTo("::")); | ||
Assert.That(address.ToString(), Is.EqualTo("::1")); | ||
Assert.That(address, Is.EqualTo(new IPv6Address(address.ToString()))); | ||
Assert.Throws(typeof(FormatException), () => new IPv6Address("1.2.3.")); | ||
Assert.DoesNotThrow(() => new IPv6Address("2::2")); | ||
Assert.DoesNotThrow(() => new IPv6Address("2::")); | ||
Assert.DoesNotThrow(() => new IPv6Address("::2")); | ||
Assert.DoesNotThrow(() => new IPv6Address("::20")); | ||
Assert.DoesNotThrow(() => new IPv6Address("::02")); | ||
Assert.DoesNotThrow(() => new IPv6Address("::200")); | ||
Assert.DoesNotThrow(() => new IPv6Address("::002")); | ||
Assert.DoesNotThrow(() => new IPv6Address("::2000")); | ||
Assert.DoesNotThrow(() => new IPv6Address("::0002")); | ||
Assert.DoesNotThrow(() => new IPv6Address("fff2::202")); | ||
Assert.DoesNotThrow(() => new IPv6Address("fff2:222::202")); | ||
Assert.DoesNotThrow(() => new IPv6Address("fff2:222::202")); | ||
Assert.DoesNotThrow(() => new IPv6Address("2001:0db8:85a3:0000:0000:8a2e:0370:7334")); | ||
Assert.DoesNotThrow(() => new IPv6Address(new BigInteger(12342152151345345))); | ||
Assert.DoesNotThrow(() => new IPv6Address(new BigInteger(0))); | ||
Assert.DoesNotThrow(() => new IPv6Address(new BigInteger(1))); | ||
var bi = new BigInteger(12342152151345345); | ||
Assert.That(new IPv6Address(bi), Is.EqualTo((IPv6Address)bi)); | ||
Assert.That((BigInteger)new IPv6Address(bi), Is.EqualTo(bi)); | ||
var bytes = new byte[16]; | ||
Assert.That(new IPv6Address(bytes), Is.EqualTo((IPv6Address)bytes)); | ||
Assert.That((byte[])new IPv6Address(bytes), Is.EqualTo(bytes)); | ||
bytes = new byte[16] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 }; | ||
Assert.That(new IPv6Address(bytes), Is.EqualTo((IPv6Address)bytes)); | ||
Assert.That((byte[])new IPv6Address(bytes), Is.EqualTo(bytes)); | ||
bytes = new byte[16] { 0xEE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xFF, 0 }; | ||
Assert.That(new IPv6Address(bytes), Is.EqualTo((IPv6Address)bytes)); | ||
Assert.That((byte[])new IPv6Address(bytes), Is.EqualTo(bytes)); | ||
Assert.That(new IPv6Address(bytes).ToString(), Is.EqualTo("ee00::ff00")); | ||
Assert.That(new IPv6Address(bytes.ToList()), Is.EqualTo((IPv6Address)bytes)); | ||
Assert.Throws(typeof(ArgumentOutOfRangeException), () => new IPv6Address(new byte[] { 1 })); | ||
Assert.Throws(typeof(ArgumentOutOfRangeException), () => new IPv6Address(new List<byte>() { 1 })); | ||
System.Net.IPAddress ip = new System.Net.IPAddress(bytes); | ||
address = (IPv6Address)bytes; | ||
Assert.That(ip, Is.EqualTo((System.Net.IPAddress)address)); | ||
Assert.That(address, Is.EqualTo((IPv6Address)ip)); | ||
// bytes = new byte[] { 1, 1, 1, 1 }; | ||
// Assert.That(bytes, Is.EqualTo((byte[])new IPv6Address(bytes))); | ||
Assert.That(new IPv6Address(new BigInteger(1)) == new IPv6Address("::1"), Is.True); | ||
Assert.That(new IPv6Address(new BigInteger(1)) == new IPv6Address("1::"), Is.False); | ||
Assert.That(new IPv6Address(new BigInteger(1)) != new IPv6Address("::1"), Is.False); | ||
Assert.That(((object)new IPv6Address(new BigInteger(1))).Equals(new IPv6Address("::1")), Is.True); | ||
Assert.That((new IPv6Address(new BigInteger(1))).Equals(new IPv6Address("::1")), Is.True); | ||
Assert.That(((object)new IPv6Address(new BigInteger(1))).Equals("::1"), Is.False); | ||
Assert.That((new IPv6Address(new BigInteger(1))).Equals("::1"), Is.False); | ||
ConcurrentDictionary<IPv6Address, string> dict = new ConcurrentDictionary<IPv6Address, string>(); | ||
Random rnd = new Random(); | ||
for (int i = 0; i < 1000; i++) | ||
{ | ||
var bigI = new BigInteger(rnd.NextInt64()); | ||
address = new IPv6Address(bigI); | ||
var res = dict.TryAdd(address, address.ToString()); | ||
Assert.That(res, Is.True, address.String); | ||
Assert.That(address.Raw, Is.EqualTo(bigI), address.String); | ||
} | ||
Assert.Throws(typeof(ArgumentException), () => { var ip = (IPv6Address)System.Net.IPAddress.Any; }); | ||
}); | ||
} | ||
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[Test] | ||
public void TestSerializable() | ||
{ | ||
IPv6Address ipv4Address = new IPv6Address("fe80::ad64:5a9a:8869:1c4f"); | ||
var data = Tools.Serialize(ipv4Address); | ||
string json = System.Text.Encoding.Default.GetString(data); | ||
IPv6Address result = Tools.Deserialize<IPv6Address>(data); | ||
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Assert.That(result, Is.EqualTo(ipv4Address), json); | ||
} | ||
} | ||
} |
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global using NUnit.Framework; | ||
global using System.Buffers.Text; | ||
global using System.Runtime.Serialization.Formatters.Binary; | ||
global using System.Text.Json; |
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using System.Collections.Generic; | ||
using System.Linq; | ||
using System.Net; | ||
using System.Numerics; | ||
using System.Text; | ||
using System.Text.RegularExpressions; | ||
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namespace org.dmxc.wkdt.Network | ||
{ | ||
[Serializable] | ||
public readonly struct IPv6Address : IEquatable<IPv6Address> | ||
{ | ||
public static IPv6Address Empty { get => new IPv6Address("::"); } | ||
public static IPv6Address LocalHost { get => new IPv6Address("::1"); } | ||
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private static readonly Regex regex = new Regex(@"(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))$"); | ||
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public readonly BigInteger Raw; | ||
#if NET8_0_OR_GREATER | ||
[JsonInclude] | ||
#endif | ||
public readonly string String; | ||
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#if NET8_0_OR_GREATER | ||
[JsonConstructor] | ||
#endif | ||
public IPv6Address(string @string) | ||
{ | ||
if (!regex.Match(@string).Success) | ||
throw new FormatException("The given string is not a IPv6Address"); | ||
// Expand the IPv6 address if it uses the :: shorthand | ||
string expandedAddress = ExpandIPv6Address(@string); | ||
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String = @string; | ||
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// Split the expanded address into its component hextets | ||
string[] hextets = expandedAddress.Split(':'); | ||
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// Convert each hextet to its corresponding integer value and combine into a BigInteger | ||
Raw = BigInteger.Zero; | ||
foreach (string hextet in hextets) | ||
Raw = (Raw << 16) + BigInteger.Parse(hextet, System.Globalization.NumberStyles.HexNumber); | ||
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} | ||
public IPv6Address(BigInteger bigInteger) : this() | ||
{ | ||
Raw = bigInteger; | ||
byte[] bytes = new byte[16]; | ||
var bigBytes = bigInteger.ToByteArray(); | ||
Array.Copy(bigBytes, bytes, bigBytes.Length); | ||
String = StringFromBytes(bytes); | ||
} | ||
public IPv6Address(byte[] bytes) : this() | ||
{ | ||
if (bytes.Length != 16) | ||
throw new ArgumentOutOfRangeException("bytes should be an array with a length of 16"); | ||
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Raw = new BigInteger(bytes); | ||
String = StringFromBytes(bytes); | ||
} | ||
public IPv6Address(IEnumerable<byte> enumerable) : this(enumerable.ToArray()) | ||
{ | ||
} | ||
private static string StringFromBytes(byte[] bytes) | ||
{ | ||
StringBuilder sb = new StringBuilder(); | ||
for (int i = 0; i < bytes.Length; i += 2) | ||
{ | ||
sb.Append($"{bytes[i]:x2}{bytes[i + 1]:x2}"); | ||
if (i < 14) | ||
sb.Append(':'); | ||
} | ||
var str = sb.ToString(); | ||
while (str.Contains(":0")) | ||
str = str.Replace(":0", ":"); | ||
while (str.Contains(":::")) | ||
str = str.Replace(":::", "::"); | ||
return str; | ||
} | ||
private static string ExpandIPv6Address(string ipv6Address) | ||
{ | ||
if (ipv6Address == "::") return "0000:0000:0000:0000:0000:0000:0000:0000"; | ||
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string[] parts = ipv6Address.Split(new string[] { "::" }, StringSplitOptions.None); | ||
string[] leftParts = parts[0].Split(':'); | ||
string[] rightParts = parts.Length > 1 ? parts[1].Split(':') : new string[0]; | ||
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if (string.IsNullOrWhiteSpace(leftParts[0])) | ||
leftParts = leftParts.Skip(1).ToArray(); | ||
if (rightParts.Length != 0 && string.IsNullOrWhiteSpace(rightParts.Last())) | ||
rightParts = rightParts.Take(rightParts.Length - 1).ToArray(); | ||
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int numZeroesToInsert = 8 - (leftParts.Length + rightParts.Length); | ||
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string[] expandedAddress = new string[8]; | ||
Array.Copy(leftParts, expandedAddress, leftParts.Length); | ||
for (int i = leftParts.Length; i < leftParts.Length + numZeroesToInsert; i++) | ||
{ | ||
expandedAddress[i] = "0000"; | ||
} | ||
Array.Copy(rightParts, 0, expandedAddress, leftParts.Length + numZeroesToInsert, rightParts.Length); | ||
for (int i = 0; i < expandedAddress.Length; i++) | ||
{ | ||
switch (expandedAddress[i].Length) | ||
{ | ||
case 1: | ||
expandedAddress[i] = "000" + expandedAddress[i]; | ||
break; | ||
case 2: | ||
expandedAddress[i] = "00" + expandedAddress[i]; | ||
break; | ||
case 3: | ||
expandedAddress[i] = "0" + expandedAddress[i]; | ||
break; | ||
default: | ||
break; | ||
} | ||
} | ||
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return string.Join(":", expandedAddress); | ||
} | ||
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public static implicit operator IPAddress(IPv6Address address) | ||
{ | ||
byte[] bytes = new byte[16]; | ||
var bigBytes = address.Raw.ToByteArray(); | ||
Array.Copy(bigBytes, bytes, bigBytes.Length); | ||
return new IPAddress(bytes); | ||
} | ||
public static implicit operator IPv6Address(IPAddress ip) | ||
{ | ||
if (ip.AddressFamily == System.Net.Sockets.AddressFamily.InterNetworkV6) | ||
return new IPv6Address(ip.GetAddressBytes()); | ||
throw new ArgumentException($"{ip} is not a Valid IPv4 and cant be converted"); | ||
} | ||
public static implicit operator BigInteger(IPv6Address address) | ||
{ | ||
return address.Raw; | ||
} | ||
public static implicit operator IPv6Address(BigInteger bigInteger) | ||
{ | ||
return new IPv6Address(bigInteger); | ||
} | ||
public static implicit operator byte[](IPv6Address address) | ||
{ | ||
byte[] bytes = new byte[16]; | ||
var bigBytes = address.Raw.ToByteArray(); | ||
Array.Copy(bigBytes, bytes, bigBytes.Length); | ||
return bytes; | ||
} | ||
public static implicit operator IPv6Address(byte[] bytes) | ||
{ | ||
return new IPv6Address(bytes); | ||
} | ||
public override string ToString() | ||
{ | ||
return String; | ||
} | ||
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public static bool operator ==(IPv6Address a, IPv6Address b) | ||
{ | ||
return a.Equals(b); | ||
} | ||
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public static bool operator !=(IPv6Address a, IPv6Address b) | ||
{ | ||
return !a.Equals(b); | ||
} | ||
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public bool Equals(IPv6Address other) | ||
{ | ||
if (this.Raw != other.Raw) | ||
return false; | ||
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return true; | ||
} | ||
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public override bool Equals(object obj) | ||
{ | ||
return obj is IPv6Address other && | ||
Raw == other.Raw; | ||
} | ||
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public override int GetHashCode() | ||
{ | ||
int hashCode = 1916557166; | ||
hashCode = hashCode * -1521134295 + Raw.GetHashCode(); | ||
return hashCode; | ||
} | ||
} | ||
} |
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