diff options
Diffstat (limited to 'Emby.Server.Implementations/Networking')
6 files changed, 0 insertions, 3149 deletions
diff --git a/Emby.Server.Implementations/Networking/IPNetwork/BigIntegerExt.cs b/Emby.Server.Implementations/Networking/IPNetwork/BigIntegerExt.cs deleted file mode 100644 index e4e944839..000000000 --- a/Emby.Server.Implementations/Networking/IPNetwork/BigIntegerExt.cs +++ /dev/null @@ -1,167 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Numerics; -using System.Text; - -namespace Emby.Server.Implementations.Networking.IPNetwork -{ - /// <summary> - /// Extension methods to convert <see cref="BigInteger"/> - /// instances to hexadecimal, octal, and binary strings. - /// </summary> - public static class BigIntegerExtensions - { - /// <summary> - /// Converts a <see cref="BigInteger"/> to a binary string. - /// </summary> - /// <param name="bigint">A <see cref="BigInteger"/>.</param> - /// <returns> - /// A <see cref="string"/> containing a binary - /// representation of the supplied <see cref="BigInteger"/>. - /// </returns> - public static string ToBinaryString(this BigInteger bigint) - { - var bytes = bigint.ToByteArray(); - var idx = bytes.Length - 1; - - // Create a StringBuilder having appropriate capacity. - var base2 = new StringBuilder(bytes.Length * 8); - - // Convert first byte to binary. - var binary = Convert.ToString(bytes[idx], 2); - - // Ensure leading zero exists if value is positive. - if (binary[0] != '0' && bigint.Sign == 1) - { - base2.Append('0'); - } - - // Append binary string to StringBuilder. - base2.Append(binary); - - // Convert remaining bytes adding leading zeros. - for (idx--; idx >= 0; idx--) - { - base2.Append(Convert.ToString(bytes[idx], 2).PadLeft(8, '0')); - } - - return base2.ToString(); - } - - /// <summary> - /// Converts a <see cref="BigInteger"/> to a hexadecimal string. - /// </summary> - /// <param name="bigint">A <see cref="BigInteger"/>.</param> - /// <returns> - /// A <see cref="string"/> containing a hexadecimal - /// representation of the supplied <see cref="BigInteger"/>. - /// </returns> - public static string ToHexadecimalString(this BigInteger bigint) - { - return bigint.ToString("X"); - } - - /// <summary> - /// Converts a <see cref="BigInteger"/> to a octal string. - /// </summary> - /// <param name="bigint">A <see cref="BigInteger"/>.</param> - /// <returns> - /// A <see cref="string"/> containing an octal - /// representation of the supplied <see cref="BigInteger"/>. - /// </returns> - public static string ToOctalString(this BigInteger bigint) - { - var bytes = bigint.ToByteArray(); - var idx = bytes.Length - 1; - - // Create a StringBuilder having appropriate capacity. - var base8 = new StringBuilder(((bytes.Length / 3) + 1) * 8); - - // Calculate how many bytes are extra when byte array is split - // into three-byte (24-bit) chunks. - var extra = bytes.Length % 3; - - // If no bytes are extra, use three bytes for first chunk. - if (extra == 0) - { - extra = 3; - } - - // Convert first chunk (24-bits) to integer value. - int int24 = 0; - for (; extra != 0; extra--) - { - int24 <<= 8; - int24 += bytes[idx--]; - } - - // Convert 24-bit integer to octal without adding leading zeros. - var octal = Convert.ToString(int24, 8); - - // Ensure leading zero exists if value is positive. - if (octal[0] != '0') - { - if (bigint.Sign == 1) - { - base8.Append('0'); - } - } - - // Append first converted chunk to StringBuilder. - base8.Append(octal); - - // Convert remaining 24-bit chunks, adding leading zeros. - for (; idx >= 0; idx -= 3) - { - int24 = (bytes[idx] << 16) + (bytes[idx - 1] << 8) + bytes[idx - 2]; - base8.Append(Convert.ToString(int24, 8).PadLeft(8, '0')); - } - - return base8.ToString(); - } - - /// <summary> - /// - /// Reverse a Positive BigInteger ONLY - /// Bitwise ~ operator - /// - /// Input : FF FF FF FF - /// Width : 4 - /// Result : 00 00 00 00 - /// - /// - /// Input : 00 00 00 00 - /// Width : 4 - /// Result : FF FF FF FF - /// - /// Input : FF FF FF FF - /// Width : 8 - /// Result : FF FF FF FF 00 00 00 00 - /// - /// - /// Input : 00 00 00 00 - /// Width : 8 - /// Result : FF FF FF FF FF FF FF FF - /// - /// </summary> - /// <param name="input"></param> - /// <param name="width"></param> - /// <returns></returns> - public static BigInteger PositiveReverse(this BigInteger input, int width) - { - - var result = new List<byte>(); - var bytes = input.ToByteArray(); - var work = new byte[width]; - Array.Copy(bytes, 0, work, 0, bytes.Length - 1); // Length -1 : positive BigInteger - - for (int i = 0; i < work.Length; i++) - { - result.Add((byte)(~work[i])); - } - result.Add(0); // positive BigInteger - return new BigInteger(result.ToArray()); - - } - } -} diff --git a/Emby.Server.Implementations/Networking/IPNetwork/IPAddressCollection.cs b/Emby.Server.Implementations/Networking/IPNetwork/IPAddressCollection.cs deleted file mode 100644 index a0c5f73af..000000000 --- a/Emby.Server.Implementations/Networking/IPNetwork/IPAddressCollection.cs +++ /dev/null @@ -1,94 +0,0 @@ -using System; -using System.Collections; -using System.Collections.Generic; -using System.Net; -using System.Numerics; - -namespace Emby.Server.Implementations.Networking.IPNetwork -{ - public class IPAddressCollection : IEnumerable<IPAddress>, IEnumerator<IPAddress> - { - - private IPNetwork _ipnetwork; - private BigInteger _enumerator; - - internal IPAddressCollection(IPNetwork ipnetwork) - { - this._ipnetwork = ipnetwork; - this._enumerator = -1; - } - - - #region Count, Array, Enumerator - - public BigInteger Count => this._ipnetwork.Total; - - public IPAddress this[BigInteger i] - { - get - { - if (i >= this.Count) - { - throw new ArgumentOutOfRangeException(nameof(i)); - } - byte width = this._ipnetwork.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork ? (byte)32 : (byte)128; - var ipn = this._ipnetwork.Subnet(width); - return ipn[i].Network; - } - } - - #endregion - - #region IEnumerable Members - - IEnumerator<IPAddress> IEnumerable<IPAddress>.GetEnumerator() - { - return this; - } - - IEnumerator IEnumerable.GetEnumerator() - { - return this; - } - - #region IEnumerator<IPNetwork> Members - - public IPAddress Current => this[this._enumerator]; - - #endregion - - #region IDisposable Members - - public void Dispose() - { - // nothing to dispose - return; - } - - #endregion - - #region IEnumerator Members - - object IEnumerator.Current => this.Current; - - public bool MoveNext() - { - this._enumerator++; - if (this._enumerator >= this.Count) - { - return false; - } - return true; - - } - - public void Reset() - { - this._enumerator = -1; - } - - #endregion - - #endregion - } -} diff --git a/Emby.Server.Implementations/Networking/IPNetwork/IPNetwork.cs b/Emby.Server.Implementations/Networking/IPNetwork/IPNetwork.cs deleted file mode 100644 index d6de61c0c..000000000 --- a/Emby.Server.Implementations/Networking/IPNetwork/IPNetwork.cs +++ /dev/null @@ -1,2008 +0,0 @@ -using System; -using System.Collections.Generic; -using System.IO; -using System.Net; -using System.Net.Sockets; -using System.Numerics; -using System.Text.RegularExpressions; - -namespace Emby.Server.Implementations.Networking.IPNetwork -{ - /// <summary> - /// IP Network utility class. - /// Use IPNetwork.Parse to create instances. - /// </summary> - public class IPNetwork : IComparable<IPNetwork> - { - - #region properties - - //private uint _network; - private BigInteger _ipaddress; - private AddressFamily _family; - //private uint _netmask; - //private uint _broadcast; - //private uint _firstUsable; - //private uint _lastUsable; - //private uint _usable; - private byte _cidr; - - #endregion - - #region accessors - - private BigInteger _network - { - get - { - var uintNetwork = this._ipaddress & this._netmask; - return uintNetwork; - } - } - - /// <summary> - /// Network address - /// </summary> - public IPAddress Network => IPNetwork.ToIPAddress(this._network, this._family); - - /// <summary> - /// Address Family - /// </summary> - public AddressFamily AddressFamily => this._family; - - private BigInteger _netmask => IPNetwork.ToUint(this._cidr, this._family); - - /// <summary> - /// Netmask - /// </summary> - public IPAddress Netmask => IPNetwork.ToIPAddress(this._netmask, this._family); - - private BigInteger _broadcast - { - get - { - - int width = this._family == System.Net.Sockets.AddressFamily.InterNetwork ? 4 : 16; - var uintBroadcast = this._network + this._netmask.PositiveReverse(width); - return uintBroadcast; - } - } - - /// <summary> - /// Broadcast address - /// </summary> - public IPAddress Broadcast - { - get - { - if (this._family == System.Net.Sockets.AddressFamily.InterNetworkV6) - { - return null; - } - return IPNetwork.ToIPAddress(this._broadcast, this._family); - } - } - - /// <summary> - /// First usable IP adress in Network - /// </summary> - public IPAddress FirstUsable - { - get - { - var fisrt = this._family == System.Net.Sockets.AddressFamily.InterNetworkV6 - ? this._network - : (this.Usable <= 0) ? this._network : this._network + 1; - return IPNetwork.ToIPAddress(fisrt, this._family); - } - } - - /// <summary> - /// Last usable IP adress in Network - /// </summary> - public IPAddress LastUsable - { - get - { - var last = this._family == System.Net.Sockets.AddressFamily.InterNetworkV6 - ? this._broadcast - : (this.Usable <= 0) ? this._network : this._broadcast - 1; - return IPNetwork.ToIPAddress(last, this._family); - } - } - - /// <summary> - /// Number of usable IP adress in Network - /// </summary> - public BigInteger Usable - { - get - { - - if (this._family == System.Net.Sockets.AddressFamily.InterNetworkV6) - { - return this.Total; - } - byte[] mask = new byte[] { 0xff, 0xff, 0xff, 0xff, 0x00 }; - var bmask = new BigInteger(mask); - var usableIps = (_cidr > 30) ? 0 : ((bmask >> _cidr) - 1); - return usableIps; - } - } - - /// <summary> - /// Number of IP adress in Network - /// </summary> - public BigInteger Total - { - get - { - - int max = this._family == System.Net.Sockets.AddressFamily.InterNetwork ? 32 : 128; - var count = BigInteger.Pow(2, (max - _cidr)); - return count; - } - } - - - /// <summary> - /// The CIDR netmask notation - /// </summary> - public byte Cidr => this._cidr; - - #endregion - - #region constructor - -#if TRAVISCI - public -#else - internal -#endif - - IPNetwork(BigInteger ipaddress, AddressFamily family, byte cidr) - { - - int maxCidr = family == System.Net.Sockets.AddressFamily.InterNetwork ? 32 : 128; - if (cidr > maxCidr) - { - throw new ArgumentOutOfRangeException(nameof(cidr)); - } - - this._ipaddress = ipaddress; - this._family = family; - this._cidr = cidr; - - } - - #endregion - - #region parsers - - /// <summary> - /// 192.168.168.100 - 255.255.255.0 - /// - /// Network : 192.168.168.0 - /// Netmask : 255.255.255.0 - /// Cidr : 24 - /// Start : 192.168.168.1 - /// End : 192.168.168.254 - /// Broadcast : 192.168.168.255 - /// </summary> - /// <param name="ipaddress"></param> - /// <param name="netmask"></param> - /// <returns></returns> - public static IPNetwork Parse(string ipaddress, string netmask) - { - - IPNetwork ipnetwork = null; - IPNetwork.InternalParse(false, ipaddress, netmask, out ipnetwork); - return ipnetwork; - } - - /// <summary> - /// 192.168.168.100/24 - /// - /// Network : 192.168.168.0 - /// Netmask : 255.255.255.0 - /// Cidr : 24 - /// Start : 192.168.168.1 - /// End : 192.168.168.254 - /// Broadcast : 192.168.168.255 - /// </summary> - /// <param name="ipaddress"></param> - /// <param name="cidr"></param> - /// <returns></returns> - public static IPNetwork Parse(string ipaddress, byte cidr) - { - - IPNetwork ipnetwork = null; - IPNetwork.InternalParse(false, ipaddress, cidr, out ipnetwork); - return ipnetwork; - - } - - /// <summary> - /// 192.168.168.100 255.255.255.0 - /// - /// Network : 192.168.168.0 - /// Netmask : 255.255.255.0 - /// Cidr : 24 - /// Start : 192.168.168.1 - /// End : 192.168.168.254 - /// Broadcast : 192.168.168.255 - /// </summary> - /// <param name="ipaddress"></param> - /// <param name="netmask"></param> - /// <returns></returns> - public static IPNetwork Parse(IPAddress ipaddress, IPAddress netmask) - { - - IPNetwork ipnetwork = null; - IPNetwork.InternalParse(false, ipaddress, netmask, out ipnetwork); - return ipnetwork; - - } - - /// <summary> - /// 192.168.0.1/24 - /// 192.168.0.1 255.255.255.0 - /// - /// Network : 192.168.0.0 - /// Netmask : 255.255.255.0 - /// Cidr : 24 - /// Start : 192.168.0.1 - /// End : 192.168.0.254 - /// Broadcast : 192.168.0.255 - /// </summary> - /// <param name="network"></param> - /// <returns></returns> - public static IPNetwork Parse(string network) - { - - IPNetwork ipnetwork = null; - IPNetwork.InternalParse(false, network, out ipnetwork); - return ipnetwork; - - } - - #endregion - - #region TryParse - - - - /// <summary> - /// 192.168.168.100 - 255.255.255.0 - /// - /// Network : 192.168.168.0 - /// Netmask : 255.255.255.0 - /// Cidr : 24 - /// Start : 192.168.168.1 - /// End : 192.168.168.254 - /// Broadcast : 192.168.168.255 - /// </summary> - /// <param name="ipaddress"></param> - /// <param name="netmask"></param> - /// <returns></returns> - public static bool TryParse(string ipaddress, string netmask, out IPNetwork ipnetwork) - { - - IPNetwork ipnetwork2 = null; - IPNetwork.InternalParse(true, ipaddress, netmask, out ipnetwork2); - bool parsed = (ipnetwork2 != null); - ipnetwork = ipnetwork2; - return parsed; - - } - - - - /// <summary> - /// 192.168.168.100/24 - /// - /// Network : 192.168.168.0 - /// Netmask : 255.255.255.0 - /// Cidr : 24 - /// Start : 192.168.168.1 - /// End : 192.168.168.254 - /// Broadcast : 192.168.168.255 - /// </summary> - /// <param name="ipaddress"></param> - /// <param name="cidr"></param> - /// <returns></returns> - public static bool TryParse(string ipaddress, byte cidr, out IPNetwork ipnetwork) - { - - IPNetwork ipnetwork2 = null; - IPNetwork.InternalParse(true, ipaddress, cidr, out ipnetwork2); - bool parsed = (ipnetwork2 != null); - ipnetwork = ipnetwork2; - return parsed; - - } - - /// <summary> - /// 192.168.0.1/24 - /// 192.168.0.1 255.255.255.0 - /// - /// Network : 192.168.0.0 - /// Netmask : 255.255.255.0 - /// Cidr : 24 - /// Start : 192.168.0.1 - /// End : 192.168.0.254 - /// Broadcast : 192.168.0.255 - /// </summary> - /// <param name="network"></param> - /// <param name="ipnetwork"></param> - /// <returns></returns> - public static bool TryParse(string network, out IPNetwork ipnetwork) - { - - IPNetwork ipnetwork2 = null; - IPNetwork.InternalParse(true, network, out ipnetwork2); - bool parsed = (ipnetwork2 != null); - ipnetwork = ipnetwork2; - return parsed; - - } - - /// <summary> - /// 192.168.0.1/24 - /// 192.168.0.1 255.255.255.0 - /// - /// Network : 192.168.0.0 - /// Netmask : 255.255.255.0 - /// Cidr : 24 - /// Start : 192.168.0.1 - /// End : 192.168.0.254 - /// Broadcast : 192.168.0.255 - /// </summary> - /// <param name="ipaddress"></param> - /// <param name="netmask"></param> - /// <param name="ipnetwork"></param> - /// <returns></returns> - public static bool TryParse(IPAddress ipaddress, IPAddress netmask, out IPNetwork ipnetwork) - { - - IPNetwork ipnetwork2 = null; - IPNetwork.InternalParse(true, ipaddress, netmask, out ipnetwork2); - bool parsed = (ipnetwork2 != null); - ipnetwork = ipnetwork2; - return parsed; - - } - - - #endregion - - #region InternalParse - - /// <summary> - /// 192.168.168.100 - 255.255.255.0 - /// - /// Network : 192.168.168.0 - /// Netmask : 255.255.255.0 - /// Cidr : 24 - /// Start : 192.168.168.1 - /// End : 192.168.168.254 - /// Broadcast : 192.168.168.255 - /// </summary> - /// <param name="ipaddress"></param> - /// <param name="netmask"></param> - /// <returns></returns> - private static void InternalParse(bool tryParse, string ipaddress, string netmask, out IPNetwork ipnetwork) - { - - if (string.IsNullOrEmpty(ipaddress)) - { - if (tryParse == false) - { - throw new ArgumentNullException(nameof(ipaddress)); - } - ipnetwork = null; - return; - } - - if (string.IsNullOrEmpty(netmask)) - { - if (tryParse == false) - { - throw new ArgumentNullException(nameof(netmask)); - } - ipnetwork = null; - return; - } - - IPAddress ip = null; - bool ipaddressParsed = IPAddress.TryParse(ipaddress, out ip); - if (ipaddressParsed == false) - { - if (tryParse == false) - { - throw new ArgumentException("ipaddress"); - } - ipnetwork = null; - return; - } - - IPAddress mask = null; - bool netmaskParsed = IPAddress.TryParse(netmask, out mask); - if (netmaskParsed == false) - { - if (tryParse == false) - { - throw new ArgumentException("netmask"); - } - ipnetwork = null; - return; - } - - IPNetwork.InternalParse(tryParse, ip, mask, out ipnetwork); - } - - private static void InternalParse(bool tryParse, string network, out IPNetwork ipnetwork) - { - - if (string.IsNullOrEmpty(network)) - { - if (tryParse == false) - { - throw new ArgumentNullException(nameof(network)); - } - ipnetwork = null; - return; - } - - network = Regex.Replace(network, @"[^0-9a-fA-F\.\/\s\:]+", ""); - network = Regex.Replace(network, @"\s{2,}", " "); - network = network.Trim(); - string[] args = network.Split(new char[] { ' ', '/' }); - byte cidr = 0; - if (args.Length == 1) - { - - if (IPNetwork.TryGuessCidr(args[0], out cidr)) - { - IPNetwork.InternalParse(tryParse, args[0], cidr, out ipnetwork); - return; - } - - if (tryParse == false) - { - throw new ArgumentException("network"); - } - ipnetwork = null; - return; - } - - if (byte.TryParse(args[1], out cidr)) - { - IPNetwork.InternalParse(tryParse, args[0], cidr, out ipnetwork); - return; - } - - IPNetwork.InternalParse(tryParse, args[0], args[1], out ipnetwork); - return; - - } - - - - /// <summary> - /// 192.168.168.100 255.255.255.0 - /// - /// Network : 192.168.168.0 - /// Netmask : 255.255.255.0 - /// Cidr : 24 - /// Start : 192.168.168.1 - /// End : 192.168.168.254 - /// Broadcast : 192.168.168.255 - /// </summary> - /// <param name="ipaddress"></param> - /// <param name="netmask"></param> - /// <returns></returns> - private static void InternalParse(bool tryParse, IPAddress ipaddress, IPAddress netmask, out IPNetwork ipnetwork) - { - - if (ipaddress == null) - { - if (tryParse == false) - { - throw new ArgumentNullException(nameof(ipaddress)); - } - ipnetwork = null; - return; - } - - if (netmask == null) - { - if (tryParse == false) - { - throw new ArgumentNullException(nameof(netmask)); - } - ipnetwork = null; - return; - } - - var uintIpAddress = IPNetwork.ToBigInteger(ipaddress); - bool parsed = IPNetwork.TryToCidr(netmask, out var cidr2); - if (parsed == false) - { - if (tryParse == false) - { - throw new ArgumentException("netmask"); - } - ipnetwork = null; - return; - } - byte cidr = (byte)cidr2; - - var ipnet = new IPNetwork(uintIpAddress, ipaddress.AddressFamily, cidr); - ipnetwork = ipnet; - - return; - } - - - - /// <summary> - /// 192.168.168.100/24 - /// - /// Network : 192.168.168.0 - /// Netmask : 255.255.255.0 - /// Cidr : 24 - /// Start : 192.168.168.1 - /// End : 192.168.168.254 - /// Broadcast : 192.168.168.255 - /// </summary> - /// <param name="ipaddress"></param> - /// <param name="cidr"></param> - /// <returns></returns> - private static void InternalParse(bool tryParse, string ipaddress, byte cidr, out IPNetwork ipnetwork) - { - - if (string.IsNullOrEmpty(ipaddress)) - { - if (tryParse == false) - { - throw new ArgumentNullException(nameof(ipaddress)); - } - ipnetwork = null; - return; - } - - - IPAddress ip = null; - bool ipaddressParsed = IPAddress.TryParse(ipaddress, out ip); - if (ipaddressParsed == false) - { - if (tryParse == false) - { - throw new ArgumentException("ipaddress"); - } - ipnetwork = null; - return; - } - - IPAddress mask = null; - bool parsedNetmask = IPNetwork.TryToNetmask(cidr, ip.AddressFamily, out mask); - if (parsedNetmask == false) - { - if (tryParse == false) - { - throw new ArgumentException("cidr"); - } - ipnetwork = null; - return; - } - - - IPNetwork.InternalParse(tryParse, ip, mask, out ipnetwork); - } - - #endregion - - #region converters - - #region ToUint - - /// <summary> - /// Convert an ipadress to decimal - /// 0.0.0.0 -> 0 - /// 0.0.1.0 -> 256 - /// </summary> - /// <param name="ipaddress"></param> - /// <returns></returns> - public static BigInteger ToBigInteger(IPAddress ipaddress) - { - IPNetwork.InternalToBigInteger(false, ipaddress, out var uintIpAddress); - return (BigInteger)uintIpAddress; - - } - - /// <summary> - /// Convert an ipadress to decimal - /// 0.0.0.0 -> 0 - /// 0.0.1.0 -> 256 - /// </summary> - /// <param name="ipaddress"></param> - /// <returns></returns> - public static bool TryToBigInteger(IPAddress ipaddress, out BigInteger? uintIpAddress) - { - IPNetwork.InternalToBigInteger(true, ipaddress, out var uintIpAddress2); - bool parsed = (uintIpAddress2 != null); - uintIpAddress = uintIpAddress2; - return parsed; - } - -#if TRAVISCI - public -#else - internal -#endif - static void InternalToBigInteger(bool tryParse, IPAddress ipaddress, out BigInteger? uintIpAddress) - { - - if (ipaddress == null) - { - if (tryParse == false) - { - throw new ArgumentNullException(nameof(ipaddress)); - } - uintIpAddress = null; - return; - } - - byte[] bytes = ipaddress.GetAddressBytes(); - /// 20180217 lduchosal - /// code impossible to reach, GetAddressBytes returns either 4 or 16 bytes length addresses - /// if (bytes.Length != 4 && bytes.Length != 16) { - /// if (tryParse == false) { - /// throw new ArgumentException("bytes"); - /// } - /// uintIpAddress = null; - /// return; - /// } - - Array.Reverse(bytes); - var unsigned = new List<byte>(bytes); - unsigned.Add(0); - uintIpAddress = new BigInteger(unsigned.ToArray()); - return; - } - - - /// <summary> - /// Convert a cidr to BigInteger netmask - /// </summary> - /// <param name="cidr"></param> - /// <returns></returns> - public static BigInteger ToUint(byte cidr, AddressFamily family) - { - IPNetwork.InternalToBigInteger(false, cidr, family, out var uintNetmask); - return (BigInteger)uintNetmask; - } - - - /// <summary> - /// Convert a cidr to uint netmask - /// </summary> - /// <param name="cidr"></param> - /// <returns></returns> - public static bool TryToUint(byte cidr, AddressFamily family, out BigInteger? uintNetmask) - { - IPNetwork.InternalToBigInteger(true, cidr, family, out var uintNetmask2); - bool parsed = (uintNetmask2 != null); - uintNetmask = uintNetmask2; - return parsed; - } - - /// <summary> - /// Convert a cidr to uint netmask - /// </summary> - /// <param name="cidr"></param> - /// <returns></returns> -#if TRAVISCI - public -#else - internal -#endif - static void InternalToBigInteger(bool tryParse, byte cidr, AddressFamily family, out BigInteger? uintNetmask) - { - - if (family == AddressFamily.InterNetwork && cidr > 32) - { - if (tryParse == false) - { - throw new ArgumentOutOfRangeException(nameof(cidr)); - } - uintNetmask = null; - return; - } - - if (family == AddressFamily.InterNetworkV6 && cidr > 128) - { - if (tryParse == false) - { - throw new ArgumentOutOfRangeException(nameof(cidr)); - } - uintNetmask = null; - return; - } - - if (family != AddressFamily.InterNetwork - && family != AddressFamily.InterNetworkV6) - { - if (tryParse == false) - { - throw new NotSupportedException(family.ToString()); - } - uintNetmask = null; - return; - } - - if (family == AddressFamily.InterNetwork) - { - - uintNetmask = cidr == 0 ? 0 : 0xffffffff << (32 - cidr); - return; - } - - var mask = new BigInteger(new byte[] { - 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, - 0x00 - }); - - var masked = cidr == 0 ? 0 : mask << (128 - cidr); - byte[] m = masked.ToByteArray(); - byte[] bmask = new byte[17]; - int copy = m.Length > 16 ? 16 : m.Length; - Array.Copy(m, 0, bmask, 0, copy); - uintNetmask = new BigInteger(bmask); - - - } - - #endregion - - #region ToCidr - - /// <summary> - /// Convert netmask to CIDR - /// 255.255.255.0 -> 24 - /// 255.255.0.0 -> 16 - /// 255.0.0.0 -> 8 - /// </summary> - /// <param name="netmask"></param> - /// <returns></returns> - private static void InternalToCidr(bool tryParse, BigInteger netmask, AddressFamily family, out byte? cidr) - { - - if (!IPNetwork.InternalValidNetmask(netmask, family)) - { - if (tryParse == false) - { - throw new ArgumentException("netmask"); - } - cidr = null; - return; - } - - byte cidr2 = IPNetwork.BitsSet(netmask, family); - cidr = cidr2; - return; - - } - /// <summary> - /// Convert netmask to CIDR - /// 255.255.255.0 -> 24 - /// 255.255.0.0 -> 16 - /// 255.0.0.0 -> 8 - /// </summary> - /// <param name="netmask"></param> - /// <returns></returns> - public static byte ToCidr(IPAddress netmask) - { - IPNetwork.InternalToCidr(false, netmask, out var cidr); - return (byte)cidr; - } - - /// <summary> - /// Convert netmask to CIDR - /// 255.255.255.0 -> 24 - /// 255.255.0.0 -> 16 - /// 255.0.0.0 -> 8 - /// </summary> - /// <param name="netmask"></param> - /// <returns></returns> - public static bool TryToCidr(IPAddress netmask, out byte? cidr) - { - IPNetwork.InternalToCidr(true, netmask, out var cidr2); - bool parsed = (cidr2 != null); - cidr = cidr2; - return parsed; - } - - private static void InternalToCidr(bool tryParse, IPAddress netmask, out byte? cidr) - { - - if (netmask == null) - { - if (tryParse == false) - { - throw new ArgumentNullException(nameof(netmask)); - } - cidr = null; - return; - } - - bool parsed = IPNetwork.TryToBigInteger(netmask, out var uintNetmask2); - - /// 20180217 lduchosal - /// impossible to reach code. - /// if (parsed == false) { - /// if (tryParse == false) { - /// throw new ArgumentException("netmask"); - /// } - /// cidr = null; - /// return; - /// } - var uintNetmask = (BigInteger)uintNetmask2; - - IPNetwork.InternalToCidr(tryParse, uintNetmask, netmask.AddressFamily, out var cidr2); - cidr = cidr2; - - return; - - } - - - #endregion - - #region ToNetmask - - /// <summary> - /// Convert CIDR to netmask - /// 24 -> 255.255.255.0 - /// 16 -> 255.255.0.0 - /// 8 -> 255.0.0.0 - /// </summary> - /// <see cref="http://snipplr.com/view/15557/cidr-class-for-ipv4/"/> - /// <param name="cidr"></param> - /// <returns></returns> - public static IPAddress ToNetmask(byte cidr, AddressFamily family) - { - - IPAddress netmask = null; - IPNetwork.InternalToNetmask(false, cidr, family, out netmask); - return netmask; - } - - /// <summary> - /// Convert CIDR to netmask - /// 24 -> 255.255.255.0 - /// 16 -> 255.255.0.0 - /// 8 -> 255.0.0.0 - /// </summary> - /// <see cref="http://snipplr.com/view/15557/cidr-class-for-ipv4/"/> - /// <param name="cidr"></param> - /// <returns></returns> - public static bool TryToNetmask(byte cidr, AddressFamily family, out IPAddress netmask) - { - - IPAddress netmask2 = null; - IPNetwork.InternalToNetmask(true, cidr, family, out netmask2); - bool parsed = (netmask2 != null); - netmask = netmask2; - return parsed; - } - - -#if TRAVISCI - public -#else - internal -#endif - static void InternalToNetmask(bool tryParse, byte cidr, AddressFamily family, out IPAddress netmask) - { - - if (family != AddressFamily.InterNetwork - && family != AddressFamily.InterNetworkV6) - { - if (tryParse == false) - { - throw new ArgumentException("family"); - } - netmask = null; - return; - } - - /// 20180217 lduchosal - /// impossible to reach code, byte cannot be negative : - /// - /// if (cidr < 0) { - /// if (tryParse == false) { - /// throw new ArgumentOutOfRangeException("cidr"); - /// } - /// netmask = null; - /// return; - /// } - - int maxCidr = family == System.Net.Sockets.AddressFamily.InterNetwork ? 32 : 128; - if (cidr > maxCidr) - { - if (tryParse == false) - { - throw new ArgumentOutOfRangeException(nameof(cidr)); - } - netmask = null; - return; - } - - var mask = IPNetwork.ToUint(cidr, family); - var netmask2 = IPNetwork.ToIPAddress(mask, family); - netmask = netmask2; - - return; - } - - #endregion - - #endregion - - #region utils - - #region BitsSet - - /// <summary> - /// Count bits set to 1 in netmask - /// </summary> - /// <see cref="http://stackoverflow.com/questions/109023/best-algorithm-to-count-the-number-of-set-bits-in-a-32-bit-integer"/> - /// <param name="netmask"></param> - /// <returns></returns> - private static byte BitsSet(BigInteger netmask, AddressFamily family) - { - - string s = netmask.ToBinaryString(); - return (byte)s.Replace("0", "") - .ToCharArray() - .Length; - - } - - - /// <summary> - /// Count bits set to 1 in netmask - /// </summary> - /// <param name="netmask"></param> - /// <returns></returns> - public static uint BitsSet(IPAddress netmask) - { - var uintNetmask = IPNetwork.ToBigInteger(netmask); - uint bits = IPNetwork.BitsSet(uintNetmask, netmask.AddressFamily); - return bits; - } - - #endregion - - #region ValidNetmask - - /// <summary> - /// return true if netmask is a valid netmask - /// 255.255.255.0, 255.0.0.0, 255.255.240.0, ... - /// </summary> - /// <see cref="http://www.actionsnip.com/snippets/tomo_atlacatl/calculate-if-a-netmask-is-valid--as2-"/> - /// <param name="netmask"></param> - /// <returns></returns> - public static bool ValidNetmask(IPAddress netmask) - { - - if (netmask == null) - { - throw new ArgumentNullException(nameof(netmask)); - } - var uintNetmask = IPNetwork.ToBigInteger(netmask); - bool valid = IPNetwork.InternalValidNetmask(uintNetmask, netmask.AddressFamily); - return valid; - } - -#if TRAVISCI - public -#else - internal -#endif - static bool InternalValidNetmask(BigInteger netmask, AddressFamily family) - { - - if (family != AddressFamily.InterNetwork - && family != AddressFamily.InterNetworkV6) - { - throw new ArgumentException("family"); - } - - var mask = family == AddressFamily.InterNetwork - ? new BigInteger(0x0ffffffff) - : new BigInteger(new byte[]{ - 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, - 0xff, 0xff, 0xff, 0xff, - 0x00 - }); - - var neg = ((~netmask) & (mask)); - bool isNetmask = ((neg + 1) & neg) == 0; - return isNetmask; - - } - - #endregion - - #region ToIPAddress - - /// <summary> - /// Transform a uint ipaddress into IPAddress object - /// </summary> - /// <param name="ipaddress"></param> - /// <returns></returns> - public static IPAddress ToIPAddress(BigInteger ipaddress, AddressFamily family) - { - - int width = family == AddressFamily.InterNetwork ? 4 : 16; - byte[] bytes = ipaddress.ToByteArray(); - byte[] bytes2 = new byte[width]; - int copy = bytes.Length > width ? width : bytes.Length; - Array.Copy(bytes, 0, bytes2, 0, copy); - Array.Reverse(bytes2); - - byte[] sized = Resize(bytes2, family); - var ip = new IPAddress(sized); - return ip; - } - -#if TRAVISCI - public -#else - internal -#endif - static byte[] Resize(byte[] bytes, AddressFamily family) - { - - if (family != AddressFamily.InterNetwork - && family != AddressFamily.InterNetworkV6) - { - throw new ArgumentException("family"); - } - - int width = family == AddressFamily.InterNetwork ? 4 : 16; - - if (bytes.Length > width) - { - throw new ArgumentException("bytes"); - } - - byte[] result = new byte[width]; - Array.Copy(bytes, 0, result, 0, bytes.Length); - return result; - } - - #endregion - - #endregion - - #region contains - - /// <summary> - /// return true if ipaddress is contained in network - /// </summary> - /// <param name="ipaddress"></param> - /// <returns></returns> - public bool Contains(IPAddress ipaddress) - { - - if (ipaddress == null) - { - throw new ArgumentNullException(nameof(ipaddress)); - } - - if (AddressFamily != ipaddress.AddressFamily) - { - return false; - } - - var uintNetwork = _network; - var uintBroadcast = _broadcast; - var uintAddress = IPNetwork.ToBigInteger(ipaddress); - - bool contains = (uintAddress >= uintNetwork - && uintAddress <= uintBroadcast); - - return contains; - - } - - /// <summary> - /// return true is network2 is fully contained in network - /// </summary> - /// <param name="network2"></param> - /// <returns></returns> - public bool Contains(IPNetwork network2) - { - - if (network2 == null) - { - throw new ArgumentNullException(nameof(network2)); - } - - var uintNetwork = _network; - var uintBroadcast = _broadcast; - - var uintFirst = network2._network; - var uintLast = network2._broadcast; - - bool contains = (uintFirst >= uintNetwork - && uintLast <= uintBroadcast); - - return contains; - } - - #endregion - - #region overlap - - /// <summary> - /// return true is network2 overlap network - /// </summary> - /// <param name="network2"></param> - /// <returns></returns> - public bool Overlap(IPNetwork network2) - { - - if (network2 == null) - { - throw new ArgumentNullException(nameof(network2)); - } - - var uintNetwork = _network; - var uintBroadcast = _broadcast; - - var uintFirst = network2._network; - var uintLast = network2._broadcast; - - bool overlap = - (uintFirst >= uintNetwork && uintFirst <= uintBroadcast) - || (uintLast >= uintNetwork && uintLast <= uintBroadcast) - || (uintFirst <= uintNetwork && uintLast >= uintBroadcast) - || (uintFirst >= uintNetwork && uintLast <= uintBroadcast); - - return overlap; - } - - #endregion - - #region ToString - - public override string ToString() - { - return string.Format("{0}/{1}", this.Network, this.Cidr); - } - - #endregion - - #region IANA block - - private static readonly Lazy<IPNetwork> _iana_ablock_reserved = new Lazy<IPNetwork>(() => IPNetwork.Parse("10.0.0.0/8")); - private static readonly Lazy<IPNetwork> _iana_bblock_reserved = new Lazy<IPNetwork>(() => IPNetwork.Parse("172.16.0.0/12")); - private static readonly Lazy<IPNetwork> _iana_cblock_reserved = new Lazy<IPNetwork>(() => IPNetwork.Parse("192.168.0.0/16")); - - /// <summary> - /// 10.0.0.0/8 - /// </summary> - /// <returns></returns> - public static IPNetwork IANA_ABLK_RESERVED1 => _iana_ablock_reserved.Value; - - /// <summary> - /// 172.12.0.0/12 - /// </summary> - /// <returns></returns> - public static IPNetwork IANA_BBLK_RESERVED1 => _iana_bblock_reserved.Value; - - /// <summary> - /// 192.168.0.0/16 - /// </summary> - /// <returns></returns> - public static IPNetwork IANA_CBLK_RESERVED1 => _iana_cblock_reserved.Value; - - /// <summary> - /// return true if ipaddress is contained in - /// IANA_ABLK_RESERVED1, IANA_BBLK_RESERVED1, IANA_CBLK_RESERVED1 - /// </summary> - /// <param name="ipaddress"></param> - /// <returns></returns> - public static bool IsIANAReserved(IPAddress ipaddress) - { - - if (ipaddress == null) - { - throw new ArgumentNullException(nameof(ipaddress)); - } - - return IPNetwork.IANA_ABLK_RESERVED1.Contains(ipaddress) - || IPNetwork.IANA_BBLK_RESERVED1.Contains(ipaddress) - || IPNetwork.IANA_CBLK_RESERVED1.Contains(ipaddress); - } - - /// <summary> - /// return true if ipnetwork is contained in - /// IANA_ABLK_RESERVED1, IANA_BBLK_RESERVED1, IANA_CBLK_RESERVED1 - /// </summary> - /// <returns></returns> - public bool IsIANAReserved() - { - return IPNetwork.IANA_ABLK_RESERVED1.Contains(this) - || IPNetwork.IANA_BBLK_RESERVED1.Contains(this) - || IPNetwork.IANA_CBLK_RESERVED1.Contains(this); - } - - #endregion - - #region Subnet - - /// <summary> - /// Subnet a network into multiple nets of cidr mask - /// Subnet 192.168.0.0/24 into cidr 25 gives 192.168.0.0/25, 192.168.0.128/25 - /// Subnet 10.0.0.0/8 into cidr 9 gives 10.0.0.0/9, 10.128.0.0/9 - /// </summary> - /// <param name="cidr"></param> - /// <returns></returns> - public IPNetworkCollection Subnet(byte cidr) - { - IPNetworkCollection ipnetworkCollection = null; - IPNetwork.InternalSubnet(false, this, cidr, out ipnetworkCollection); - return ipnetworkCollection; - } - - /// <summary> - /// Subnet a network into multiple nets of cidr mask - /// Subnet 192.168.0.0/24 into cidr 25 gives 192.168.0.0/25, 192.168.0.128/25 - /// Subnet 10.0.0.0/8 into cidr 9 gives 10.0.0.0/9, 10.128.0.0/9 - /// </summary> - /// <param name="cidr"></param> - /// <returns></returns> - public bool TrySubnet(byte cidr, out IPNetworkCollection ipnetworkCollection) - { - IPNetworkCollection inc = null; - IPNetwork.InternalSubnet(true, this, cidr, out inc); - if (inc == null) - { - ipnetworkCollection = null; - return false; - } - - ipnetworkCollection = inc; - return true; - } - -#if TRAVISCI - public -#else - internal -#endif - static void InternalSubnet(bool trySubnet, IPNetwork network, byte cidr, out IPNetworkCollection ipnetworkCollection) - { - - if (network == null) - { - if (trySubnet == false) - { - throw new ArgumentNullException(nameof(network)); - } - ipnetworkCollection = null; - return; - } - - int maxCidr = network._family == System.Net.Sockets.AddressFamily.InterNetwork ? 32 : 128; - if (cidr > maxCidr) - { - if (trySubnet == false) - { - throw new ArgumentOutOfRangeException(nameof(cidr)); - } - ipnetworkCollection = null; - return; - } - - if (cidr < network.Cidr) - { - if (trySubnet == false) - { - throw new ArgumentException("cidr"); - } - ipnetworkCollection = null; - return; - } - - ipnetworkCollection = new IPNetworkCollection(network, cidr); - return; - } - - - - #endregion - - #region Supernet - - /// <summary> - /// Supernet two consecutive cidr equal subnet into a single one - /// 192.168.0.0/24 + 192.168.1.0/24 = 192.168.0.0/23 - /// 10.1.0.0/16 + 10.0.0.0/16 = 10.0.0.0/15 - /// 192.168.0.0/24 + 192.168.0.0/25 = 192.168.0.0/24 - /// </summary> - /// <param name="network2"></param> - /// <returns></returns> - public IPNetwork Supernet(IPNetwork network2) - { - IPNetwork supernet = null; - IPNetwork.InternalSupernet(false, this, network2, out supernet); - return supernet; - } - - /// <summary> - /// Try to supernet two consecutive cidr equal subnet into a single one - /// 192.168.0.0/24 + 192.168.1.0/24 = 192.168.0.0/23 - /// 10.1.0.0/16 + 10.0.0.0/16 = 10.0.0.0/15 - /// 192.168.0.0/24 + 192.168.0.0/25 = 192.168.0.0/24 - /// </summary> - /// <param name="network2"></param> - /// <returns></returns> - public bool TrySupernet(IPNetwork network2, out IPNetwork supernet) - { - - IPNetwork outSupernet = null; - IPNetwork.InternalSupernet(true, this, network2, out outSupernet); - bool parsed = (outSupernet != null); - supernet = outSupernet; - return parsed; - } - -#if TRAVISCI - public -#else - internal -#endif - static void InternalSupernet(bool trySupernet, IPNetwork network1, IPNetwork network2, out IPNetwork supernet) - { - - if (network1 == null) - { - if (trySupernet == false) - { - throw new ArgumentNullException(nameof(network1)); - } - supernet = null; - return; - } - - if (network2 == null) - { - if (trySupernet == false) - { - throw new ArgumentNullException(nameof(network2)); - } - supernet = null; - return; - } - - - if (network1.Contains(network2)) - { - supernet = new IPNetwork(network1._network, network1._family, network1.Cidr); - return; - } - - if (network2.Contains(network1)) - { - supernet = new IPNetwork(network2._network, network2._family, network2.Cidr); - return; - } - - if (network1._cidr != network2._cidr) - { - if (trySupernet == false) - { - throw new ArgumentException("cidr"); - } - supernet = null; - return; - } - - var first = (network1._network < network2._network) ? network1 : network2; - var last = (network1._network > network2._network) ? network1 : network2; - - /// Starting from here : - /// network1 and network2 have the same cidr, - /// network1 does not contain network2, - /// network2 does not contain network1, - /// first is the lower subnet - /// last is the higher subnet - - - if ((first._broadcast + 1) != last._network) - { - if (trySupernet == false) - { - throw new ArgumentOutOfRangeException(nameof(trySupernet), "TrySupernet was false while the first and last networks are not adjacent."); - } - supernet = null; - return; - } - - var uintSupernet = first._network; - byte cidrSupernet = (byte)(first._cidr - 1); - - var networkSupernet = new IPNetwork(uintSupernet, first._family, cidrSupernet); - if (networkSupernet._network != first._network) - { - if (trySupernet == false) - { - throw new ArgumentException("network"); - } - supernet = null; - return; - } - supernet = networkSupernet; - return; - } - - #endregion - - #region GetHashCode - - public override int GetHashCode() - { - return string.Format("{0}|{1}|{2}", - this._ipaddress.GetHashCode(), - this._network.GetHashCode(), - this._cidr.GetHashCode()).GetHashCode(); - } - - #endregion - - #region SupernetArray - - /// <summary> - /// Supernet a list of subnet - /// 192.168.0.0/24 + 192.168.1.0/24 = 192.168.0.0/23 - /// 192.168.0.0/24 + 192.168.1.0/24 + 192.168.2.0/24 + 192.168.3.0/24 = 192.168.0.0/22 - /// </summary> - /// <param name="ipnetworks">The IP networks</param> - /// <returns></returns> - public static IPNetwork[] Supernet(IPNetwork[] ipnetworks) - { - InternalSupernet(false, ipnetworks, out var supernet); - return supernet; - } - - /// <summary> - /// Supernet a list of subnet - /// 192.168.0.0/24 + 192.168.1.0/24 = 192.168.0.0/23 - /// 192.168.0.0/24 + 192.168.1.0/24 + 192.168.2.0/24 + 192.168.3.0/24 = 192.168.0.0/22 - /// </summary> - /// <param name="ipnetworks"></param> - /// <param name="supernet"></param> - /// <returns></returns> - public static bool TrySupernet(IPNetwork[] ipnetworks, out IPNetwork[] supernet) - { - bool supernetted = InternalSupernet(true, ipnetworks, out supernet); - return supernetted; - - } - -#if TRAVISCI - public -#else - internal -#endif - static bool InternalSupernet(bool trySupernet, IPNetwork[] ipnetworks, out IPNetwork[] supernet) - { - - if (ipnetworks == null) - { - if (trySupernet == false) - { - throw new ArgumentNullException(nameof(ipnetworks)); - } - supernet = null; - return false; - } - - if (ipnetworks.Length <= 0) - { - supernet = new IPNetwork[0]; - return true; - } - - var supernetted = new List<IPNetwork>(); - var ipns = IPNetwork.Array2List(ipnetworks); - var current = IPNetwork.List2Stack(ipns); - int previousCount = 0; - int currentCount = current.Count; - - while (previousCount != currentCount) - { - - supernetted.Clear(); - while (current.Count > 1) - { - var ipn1 = current.Pop(); - var ipn2 = current.Peek(); - - IPNetwork outNetwork = null; - bool success = ipn1.TrySupernet(ipn2, out outNetwork); - if (success) - { - current.Pop(); - current.Push(outNetwork); - } - else - { - supernetted.Add(ipn1); - } - } - if (current.Count == 1) - { - supernetted.Add(current.Pop()); - } - - previousCount = currentCount; - currentCount = supernetted.Count; - current = IPNetwork.List2Stack(supernetted); - - } - supernet = supernetted.ToArray(); - return true; - } - - private static Stack<IPNetwork> List2Stack(List<IPNetwork> list) - { - var stack = new Stack<IPNetwork>(); - list.ForEach(new Action<IPNetwork>( - delegate (IPNetwork ipn) - { - stack.Push(ipn); - } - )); - return stack; - } - - private static List<IPNetwork> Array2List(IPNetwork[] array) - { - var ipns = new List<IPNetwork>(); - ipns.AddRange(array); - IPNetwork.RemoveNull(ipns); - ipns.Sort(new Comparison<IPNetwork>( - delegate (IPNetwork ipn1, IPNetwork ipn2) - { - int networkCompare = ipn1._network.CompareTo(ipn2._network); - if (networkCompare == 0) - { - int cidrCompare = ipn1._cidr.CompareTo(ipn2._cidr); - return cidrCompare; - } - return networkCompare; - } - )); - ipns.Reverse(); - - return ipns; - } - - private static void RemoveNull(List<IPNetwork> ipns) - { - ipns.RemoveAll(new Predicate<IPNetwork>( - delegate (IPNetwork ipn) - { - if (ipn == null) - { - return true; - } - return false; - } - )); - - } - - #endregion - - #region WideSubnet - - public static IPNetwork WideSubnet(string start, string end) - { - - if (string.IsNullOrEmpty(start)) - { - throw new ArgumentNullException(nameof(start)); - } - - if (string.IsNullOrEmpty(end)) - { - throw new ArgumentNullException(nameof(end)); - } - - if (!IPAddress.TryParse(start, out var startIP)) - { - throw new ArgumentException("start"); - } - - if (!IPAddress.TryParse(end, out var endIP)) - { - throw new ArgumentException("end"); - } - - if (startIP.AddressFamily != endIP.AddressFamily) - { - throw new NotSupportedException("MixedAddressFamily"); - } - - var ipnetwork = new IPNetwork(0, startIP.AddressFamily, 0); - for (byte cidr = 32; cidr >= 0; cidr--) - { - var wideSubnet = IPNetwork.Parse(start, cidr); - if (wideSubnet.Contains(endIP)) - { - ipnetwork = wideSubnet; - break; - } - } - return ipnetwork; - - } - - public static bool TryWideSubnet(IPNetwork[] ipnetworks, out IPNetwork ipnetwork) - { - IPNetwork ipn = null; - IPNetwork.InternalWideSubnet(true, ipnetworks, out ipn); - if (ipn == null) - { - ipnetwork = null; - return false; - } - ipnetwork = ipn; - return true; - } - - public static IPNetwork WideSubnet(IPNetwork[] ipnetworks) - { - IPNetwork ipn = null; - IPNetwork.InternalWideSubnet(false, ipnetworks, out ipn); - return ipn; - } - - internal static void InternalWideSubnet(bool tryWide, IPNetwork[] ipnetworks, out IPNetwork ipnetwork) - { - - if (ipnetworks == null) - { - if (tryWide == false) - { - throw new ArgumentNullException(nameof(ipnetworks)); - } - ipnetwork = null; - return; - } - - - IPNetwork[] nnin = Array.FindAll(ipnetworks, new Predicate<IPNetwork>( - delegate (IPNetwork ipnet) - { - return ipnet != null; - } - )); - - if (nnin.Length <= 0) - { - if (tryWide == false) - { - throw new ArgumentException("ipnetworks"); - } - ipnetwork = null; - return; - } - - if (nnin.Length == 1) - { - var ipn0 = nnin[0]; - ipnetwork = ipn0; - return; - } - - Array.Sort(nnin); - var nnin0 = nnin[0]; - var uintNnin0 = nnin0._ipaddress; - - var nninX = nnin[nnin.Length - 1]; - var ipaddressX = nninX.Broadcast; - - var family = ipnetworks[0]._family; - foreach (var ipnx in ipnetworks) - { - if (ipnx._family != family) - { - throw new ArgumentException("MixedAddressFamily"); - } - } - - var ipn = new IPNetwork(0, family, 0); - for (byte cidr = nnin0._cidr; cidr >= 0; cidr--) - { - var wideSubnet = new IPNetwork(uintNnin0, family, cidr); - if (wideSubnet.Contains(ipaddressX)) - { - ipn = wideSubnet; - break; - } - } - - ipnetwork = ipn; - return; - } - - #endregion - - #region Print - - /// <summary> - /// Print an ipnetwork in a clear representation string - /// </summary> - /// <returns></returns> - public string Print() - { - - var sw = new StringWriter(); - - sw.WriteLine("IPNetwork : {0}", ToString()); - sw.WriteLine("Network : {0}", Network); - sw.WriteLine("Netmask : {0}", Netmask); - sw.WriteLine("Cidr : {0}", Cidr); - sw.WriteLine("Broadcast : {0}", Broadcast); - sw.WriteLine("FirstUsable : {0}", FirstUsable); - sw.WriteLine("LastUsable : {0}", LastUsable); - sw.WriteLine("Usable : {0}", Usable); - - return sw.ToString(); - } - - #endregion - - #region TryGuessCidr - - /// <summary> - /// - /// Class Leading bits Default netmask - /// A (CIDR /8) 00 255.0.0.0 - /// A (CIDR /8) 01 255.0.0.0 - /// B (CIDR /16) 10 255.255.0.0 - /// C (CIDR /24) 11 255.255.255.0 - /// - /// </summary> - /// <param name="ip"></param> - /// <param name="cidr"></param> - /// <returns></returns> - public static bool TryGuessCidr(string ip, out byte cidr) - { - - IPAddress ipaddress = null; - bool parsed = IPAddress.TryParse(string.Format("{0}", ip), out ipaddress); - if (parsed == false) - { - cidr = 0; - return false; - } - - if (ipaddress.AddressFamily == AddressFamily.InterNetworkV6) - { - cidr = 64; - return true; - } - var uintIPAddress = IPNetwork.ToBigInteger(ipaddress); - uintIPAddress = uintIPAddress >> 29; - if (uintIPAddress <= 3) - { - cidr = 8; - return true; - } - else if (uintIPAddress <= 5) - { - cidr = 16; - return true; - } - else if (uintIPAddress <= 6) - { - cidr = 24; - return true; - } - - cidr = 0; - return false; - - } - - /// <summary> - /// Try to parse cidr. Have to be >= 0 and <= 32 or 128 - /// </summary> - /// <param name="sidr"></param> - /// <param name="cidr"></param> - /// <returns></returns> - public static bool TryParseCidr(string sidr, AddressFamily family, out byte? cidr) - { - - byte b = 0; - if (!byte.TryParse(sidr, out b)) - { - cidr = null; - return false; - } - - IPAddress netmask = null; - if (!IPNetwork.TryToNetmask(b, family, out netmask)) - { - cidr = null; - return false; - } - - cidr = b; - return true; - } - - #endregion - - #region ListIPAddress - - public IPAddressCollection ListIPAddress() - { - return new IPAddressCollection(this); - } - - #endregion - - /** - * Need a better way to do it - * -#region TrySubstractNetwork - - public static bool TrySubstractNetwork(IPNetwork[] ipnetworks, IPNetwork substract, out IEnumerable<IPNetwork> result) { - - if (ipnetworks == null) { - result = null; - return false; - } - if (ipnetworks.Length <= 0) { - result = null; - return false; - } - if (substract == null) { - result = null; - return false; - } - var results = new List<IPNetwork>(); - foreach (var ipn in ipnetworks) { - if (!Overlap(ipn, substract)) { - results.Add(ipn); - continue; - } - - var collection = ipn.Subnet(substract.Cidr); - var rtemp = new List<IPNetwork>(); - foreach(var subnet in collection) { - if (subnet != substract) { - rtemp.Add(subnet); - } - } - var supernets = Supernet(rtemp.ToArray()); - results.AddRange(supernets); - } - result = results; - return true; - } -#endregion - * **/ - - #region IComparable<IPNetwork> Members - - public static int Compare(IPNetwork left, IPNetwork right) - { - // two null IPNetworks are equal - if (ReferenceEquals(left, null) && ReferenceEquals(right, null)) return 0; - - // two same IPNetworks are equal - if (ReferenceEquals(left, right)) return 0; - - // null is always sorted first - if (ReferenceEquals(left, null)) return -1; - if (ReferenceEquals(right, null)) return 1; - - // first test the network - var result = left._network.CompareTo(right._network); - if (result != 0) return result; - - // then test the cidr - result = left._cidr.CompareTo(right._cidr); - return result; - } - - public int CompareTo(IPNetwork other) - { - return Compare(this, other); - } - - public int CompareTo(object obj) - { - // null is at less - if (obj == null) return 1; - - // convert to a proper Cidr object - var other = obj as IPNetwork; - - // type problem if null - if (other == null) - { - throw new ArgumentException( - "The supplied parameter is an invalid type. Please supply an IPNetwork type.", - nameof(obj)); - } - - // perform the comparision - return CompareTo(other); - } - - #endregion - - #region IEquatable<IPNetwork> Members - - public static bool Equals(IPNetwork left, IPNetwork right) - { - return Compare(left, right) == 0; - } - - public bool Equals(IPNetwork other) - { - return Equals(this, other); - } - - public override bool Equals(object obj) - { - return Equals(this, obj as IPNetwork); - } - - #endregion - - #region Operators - - public static bool operator ==(IPNetwork left, IPNetwork right) - { - return Equals(left, right); - } - - public static bool operator !=(IPNetwork left, IPNetwork right) - { - return !Equals(left, right); - } - - public static bool operator <(IPNetwork left, IPNetwork right) - { - return Compare(left, right) < 0; - } - - public static bool operator >(IPNetwork left, IPNetwork right) - { - return Compare(left, right) > 0; - } - - #endregion - - } -} diff --git a/Emby.Server.Implementations/Networking/IPNetwork/IPNetworkCollection.cs b/Emby.Server.Implementations/Networking/IPNetwork/IPNetworkCollection.cs deleted file mode 100644 index 4cda421e5..000000000 --- a/Emby.Server.Implementations/Networking/IPNetwork/IPNetworkCollection.cs +++ /dev/null @@ -1,129 +0,0 @@ -using System; -using System.Collections; -using System.Collections.Generic; -using System.Numerics; - -namespace Emby.Server.Implementations.Networking.IPNetwork -{ - public class IPNetworkCollection : IEnumerable<IPNetwork>, IEnumerator<IPNetwork> - { - - private BigInteger _enumerator; - private byte _cidrSubnet; - private IPNetwork _ipnetwork; - - private byte _cidr => this._ipnetwork.Cidr; - - private BigInteger _broadcast => IPNetwork.ToBigInteger(this._ipnetwork.Broadcast); - - private BigInteger _lastUsable => IPNetwork.ToBigInteger(this._ipnetwork.LastUsable); - private BigInteger _network => IPNetwork.ToBigInteger(this._ipnetwork.Network); -#if TRAVISCI - public -#else - internal -#endif - IPNetworkCollection(IPNetwork ipnetwork, byte cidrSubnet) - { - - int maxCidr = ipnetwork.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork ? 32 : 128; - if (cidrSubnet > maxCidr) - { - throw new ArgumentOutOfRangeException(nameof(cidrSubnet)); - } - - if (cidrSubnet < ipnetwork.Cidr) - { - throw new ArgumentException("cidr"); - } - - this._cidrSubnet = cidrSubnet; - this._ipnetwork = ipnetwork; - this._enumerator = -1; - } - - #region Count, Array, Enumerator - - public BigInteger Count - { - get - { - var count = BigInteger.Pow(2, this._cidrSubnet - this._cidr); - return count; - } - } - - public IPNetwork this[BigInteger i] - { - get - { - if (i >= this.Count) - { - throw new ArgumentOutOfRangeException(nameof(i)); - } - - var last = this._ipnetwork.AddressFamily == System.Net.Sockets.AddressFamily.InterNetworkV6 - ? this._lastUsable : this._broadcast; - var increment = (last - this._network) / this.Count; - var uintNetwork = this._network + ((increment + 1) * i); - var ipn = new IPNetwork(uintNetwork, this._ipnetwork.AddressFamily, this._cidrSubnet); - return ipn; - } - } - - #endregion - - #region IEnumerable Members - - IEnumerator<IPNetwork> IEnumerable<IPNetwork>.GetEnumerator() - { - return this; - } - - IEnumerator IEnumerable.GetEnumerator() - { - return this; - } - - #region IEnumerator<IPNetwork> Members - - public IPNetwork Current => this[this._enumerator]; - - #endregion - - #region IDisposable Members - - public void Dispose() - { - // nothing to dispose - return; - } - - #endregion - - #region IEnumerator Members - - object IEnumerator.Current => this.Current; - - public bool MoveNext() - { - this._enumerator++; - if (this._enumerator >= this.Count) - { - return false; - } - return true; - - } - - public void Reset() - { - this._enumerator = -1; - } - - #endregion - - #endregion - - } -} diff --git a/Emby.Server.Implementations/Networking/IPNetwork/LICENSE.txt b/Emby.Server.Implementations/Networking/IPNetwork/LICENSE.txt deleted file mode 100644 index 45d7392ac..000000000 --- a/Emby.Server.Implementations/Networking/IPNetwork/LICENSE.txt +++ /dev/null @@ -1,24 +0,0 @@ -Copyright (c) 2015, lduchosal -All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are met: - -* Redistributions of source code must retain the above copyright notice, this - list of conditions and the following disclaimer. - -* Redistributions in binary form must reproduce the above copyright notice, - this list of conditions and the following disclaimer in the documentation - and/or other materials provided with the distribution. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" -AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE -DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE -FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, -OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - diff --git a/Emby.Server.Implementations/Networking/NetworkManager.cs b/Emby.Server.Implementations/Networking/NetworkManager.cs deleted file mode 100644 index 60cc9b88e..000000000 --- a/Emby.Server.Implementations/Networking/NetworkManager.cs +++ /dev/null @@ -1,727 +0,0 @@ -using System; -using System.Collections.Generic; -using System.Globalization; -using System.Linq; -using System.Net; -using System.Net.NetworkInformation; -using System.Net.Sockets; -using System.Threading.Tasks; -using MediaBrowser.Common.Net; -using MediaBrowser.Model.Extensions; -using MediaBrowser.Model.IO; -using MediaBrowser.Model.Net; -using MediaBrowser.Model.System; -using Microsoft.Extensions.Logging; - -namespace Emby.Server.Implementations.Networking -{ - public class NetworkManager : INetworkManager - { - protected ILogger Logger { get; private set; } - - public event EventHandler NetworkChanged; - public Func<string[]> LocalSubnetsFn { get; set; } - - public NetworkManager( - ILoggerFactory loggerFactory, - IEnvironmentInfo environment) - { - Logger = loggerFactory.CreateLogger(nameof(NetworkManager)); - - // In FreeBSD these events cause a crash - if (environment.OperatingSystem != MediaBrowser.Model.System.OperatingSystem.BSD) - { - try - { - NetworkChange.NetworkAddressChanged += NetworkChange_NetworkAddressChanged; - } - catch (Exception ex) - { - Logger.LogError(ex, "Error binding to NetworkAddressChanged event"); - } - - try - { - NetworkChange.NetworkAvailabilityChanged += NetworkChange_NetworkAvailabilityChanged; - } - catch (Exception ex) - { - Logger.LogError(ex, "Error binding to NetworkChange_NetworkAvailabilityChanged event"); - } - } - } - - private void NetworkChange_NetworkAvailabilityChanged(object sender, NetworkAvailabilityEventArgs e) - { - Logger.LogDebug("NetworkAvailabilityChanged"); - OnNetworkChanged(); - } - - private void NetworkChange_NetworkAddressChanged(object sender, EventArgs e) - { - Logger.LogDebug("NetworkAddressChanged"); - OnNetworkChanged(); - } - - private void OnNetworkChanged() - { - lock (_localIpAddressSyncLock) - { - _localIpAddresses = null; - _macAddresses = null; - } - if (NetworkChanged != null) - { - NetworkChanged(this, EventArgs.Empty); - } - } - - private IpAddressInfo[] _localIpAddresses; - private readonly object _localIpAddressSyncLock = new object(); - - public IpAddressInfo[] GetLocalIpAddresses() - { - lock (_localIpAddressSyncLock) - { - if (_localIpAddresses == null) - { - var addresses = GetLocalIpAddressesInternal().Result.Select(ToIpAddressInfo).ToArray(); - - _localIpAddresses = addresses; - - return addresses; - } - return _localIpAddresses; - } - } - - private async Task<List<IPAddress>> GetLocalIpAddressesInternal() - { - var list = GetIPsDefault() - .ToList(); - - if (list.Count == 0) - { - list.AddRange(await GetLocalIpAddressesFallback().ConfigureAwait(false)); - } - - var listClone = list.ToList(); - - return list - .OrderBy(i => i.AddressFamily == AddressFamily.InterNetwork ? 0 : 1) - .ThenBy(i => listClone.IndexOf(i)) - .Where(FilterIpAddress) - .GroupBy(i => i.ToString()) - .Select(x => x.First()) - .ToList(); - } - - private static bool FilterIpAddress(IPAddress address) - { - var addressString = address.ToString(); - - if (addressString.StartsWith("169.", StringComparison.OrdinalIgnoreCase)) - { - return false; - } - - return true; - } - - public bool IsInPrivateAddressSpace(string endpoint) - { - return IsInPrivateAddressSpace(endpoint, true); - } - - private bool IsInPrivateAddressSpace(string endpoint, bool checkSubnets) - { - if (string.Equals(endpoint, "::1", StringComparison.OrdinalIgnoreCase)) - { - return true; - } - - // ipv6 - if (endpoint.Split('.').Length > 4) - { - // Handle ipv4 mapped to ipv6 - var originalEndpoint = endpoint; - endpoint = endpoint.Replace("::ffff:", string.Empty); - - if (string.Equals(endpoint, originalEndpoint, StringComparison.OrdinalIgnoreCase)) - { - return false; - } - } - - // Private address space: - // http://en.wikipedia.org/wiki/Private_network - - if (endpoint.StartsWith("172.", StringComparison.OrdinalIgnoreCase)) - { - return Is172AddressPrivate(endpoint); - } - - if (endpoint.StartsWith("localhost", StringComparison.OrdinalIgnoreCase) || - endpoint.StartsWith("127.", StringComparison.OrdinalIgnoreCase) || - endpoint.StartsWith("169.", StringComparison.OrdinalIgnoreCase)) - { - return true; - } - - if (checkSubnets && endpoint.StartsWith("192.168", StringComparison.OrdinalIgnoreCase)) - { - return true; - } - - if (checkSubnets && IsInPrivateAddressSpaceAndLocalSubnet(endpoint)) - { - return true; - } - - return false; - } - - public bool IsInPrivateAddressSpaceAndLocalSubnet(string endpoint) - { - if (endpoint.StartsWith("10.", StringComparison.OrdinalIgnoreCase)) - { - var endpointFirstPart = endpoint.Split('.')[0]; - - var subnets = GetSubnets(endpointFirstPart); - - foreach (var subnet_Match in subnets) - { - //logger.LogDebug("subnet_Match:" + subnet_Match); - - if (endpoint.StartsWith(subnet_Match + ".", StringComparison.OrdinalIgnoreCase)) - { - return true; - } - } - } - - return false; - } - - private Dictionary<string, List<string>> _subnetLookup = new Dictionary<string, List<string>>(StringComparer.Ordinal); - private List<string> GetSubnets(string endpointFirstPart) - { - lock (_subnetLookup) - { - if (_subnetLookup.TryGetValue(endpointFirstPart, out var subnets)) - { - return subnets; - } - - subnets = new List<string>(); - - foreach (var adapter in NetworkInterface.GetAllNetworkInterfaces()) - { - foreach (var unicastIPAddressInformation in adapter.GetIPProperties().UnicastAddresses) - { - if (unicastIPAddressInformation.Address.AddressFamily == AddressFamily.InterNetwork && endpointFirstPart == unicastIPAddressInformation.Address.ToString().Split('.')[0]) - { - int subnet_Test = 0; - foreach (string part in unicastIPAddressInformation.IPv4Mask.ToString().Split('.')) - { - if (part.Equals("0")) break; - subnet_Test++; - } - - var subnet_Match = string.Join(".", unicastIPAddressInformation.Address.ToString().Split('.').Take(subnet_Test).ToArray()); - - // TODO: Is this check necessary? - if (adapter.OperationalStatus == OperationalStatus.Up) - { - subnets.Add(subnet_Match); - } - } - } - } - - _subnetLookup[endpointFirstPart] = subnets; - - return subnets; - } - } - - private static bool Is172AddressPrivate(string endpoint) - { - for (var i = 16; i <= 31; i++) - { - if (endpoint.StartsWith("172." + i.ToString(CultureInfo.InvariantCulture) + ".", StringComparison.OrdinalIgnoreCase)) - { - return true; - } - } - - return false; - } - - public bool IsInLocalNetwork(string endpoint) - { - return IsInLocalNetworkInternal(endpoint, true); - } - - public bool IsAddressInSubnets(string addressString, string[] subnets) - { - return IsAddressInSubnets(IPAddress.Parse(addressString), addressString, subnets); - } - - private static bool IsAddressInSubnets(IPAddress address, string addressString, string[] subnets) - { - foreach (var subnet in subnets) - { - var normalizedSubnet = subnet.Trim(); - - if (string.Equals(normalizedSubnet, addressString, StringComparison.OrdinalIgnoreCase)) - { - return true; - } - - if (normalizedSubnet.IndexOf('/') != -1) - { - var ipnetwork = IPNetwork.IPNetwork.Parse(normalizedSubnet); - if (ipnetwork.Contains(address)) - { - return true; - } - } - } - - return false; - } - - private bool IsInLocalNetworkInternal(string endpoint, bool resolveHost) - { - if (string.IsNullOrEmpty(endpoint)) - { - throw new ArgumentNullException(nameof(endpoint)); - } - - if (IPAddress.TryParse(endpoint, out var address)) - { - var addressString = address.ToString(); - - var localSubnetsFn = LocalSubnetsFn; - if (localSubnetsFn != null) - { - var localSubnets = localSubnetsFn(); - foreach (var subnet in localSubnets) - { - // only validate if there's at least one valid entry - if (!string.IsNullOrWhiteSpace(subnet)) - { - return IsAddressInSubnets(address, addressString, localSubnets) || IsInPrivateAddressSpace(addressString, false); - } - } - } - - int lengthMatch = 100; - if (address.AddressFamily == AddressFamily.InterNetwork) - { - lengthMatch = 4; - if (IsInPrivateAddressSpace(addressString, true)) - { - return true; - } - } - else if (address.AddressFamily == AddressFamily.InterNetworkV6) - { - lengthMatch = 9; - if (IsInPrivateAddressSpace(endpoint, true)) - { - return true; - } - } - - // Should be even be doing this with ipv6? - if (addressString.Length >= lengthMatch) - { - var prefix = addressString.Substring(0, lengthMatch); - - if (GetLocalIpAddresses().Any(i => i.ToString().StartsWith(prefix, StringComparison.OrdinalIgnoreCase))) - { - return true; - } - } - } - else if (resolveHost) - { - if (Uri.TryCreate(endpoint, UriKind.RelativeOrAbsolute, out var uri)) - { - try - { - var host = uri.DnsSafeHost; - Logger.LogDebug("Resolving host {0}", host); - - address = GetIpAddresses(host).Result.FirstOrDefault(); - - if (address != null) - { - Logger.LogDebug("{0} resolved to {1}", host, address); - - return IsInLocalNetworkInternal(address.ToString(), false); - } - } - catch (InvalidOperationException) - { - // Can happen with reverse proxy or IIS url rewriting - } - catch (Exception ex) - { - Logger.LogError(ex, "Error resolving hostname"); - } - } - } - - return false; - } - - private static Task<IPAddress[]> GetIpAddresses(string hostName) - { - return Dns.GetHostAddressesAsync(hostName); - } - - private List<IPAddress> GetIPsDefault() - { - NetworkInterface[] interfaces; - - try - { - var validStatuses = new[] { OperationalStatus.Up, OperationalStatus.Unknown }; - - interfaces = NetworkInterface.GetAllNetworkInterfaces() - .Where(i => validStatuses.Contains(i.OperationalStatus)) - .ToArray(); - } - catch (Exception ex) - { - Logger.LogError(ex, "Error in GetAllNetworkInterfaces"); - return new List<IPAddress>(); - } - - return interfaces.SelectMany(network => - { - - try - { - // suppress logging because it might be causing nas device wake up - //logger.LogDebug("Querying interface: {0}. Type: {1}. Status: {2}", network.Name, network.NetworkInterfaceType, network.OperationalStatus); - - var ipProperties = network.GetIPProperties(); - - // Try to exclude virtual adapters - // http://stackoverflow.com/questions/8089685/c-sharp-finding-my-machines-local-ip-address-and-not-the-vms - var addr = ipProperties.GatewayAddresses.FirstOrDefault(); - if (addr == null || string.Equals(addr.Address.ToString(), "0.0.0.0", StringComparison.OrdinalIgnoreCase)) - { - return new List<IPAddress>(); - } - - return ipProperties.UnicastAddresses - .Select(i => i.Address) - .Where(i => i.AddressFamily == AddressFamily.InterNetwork || i.AddressFamily == AddressFamily.InterNetworkV6) - .ToList(); - } - catch (Exception ex) - { - Logger.LogError(ex, "Error querying network interface"); - return new List<IPAddress>(); - } - - }).GroupBy(i => i.ToString()) - .Select(x => x.First()) - .ToList(); - } - - private static async Task<IEnumerable<IPAddress>> GetLocalIpAddressesFallback() - { - var host = await Dns.GetHostEntryAsync(Dns.GetHostName()).ConfigureAwait(false); - - // Reverse them because the last one is usually the correct one - // It's not fool-proof so ultimately the consumer will have to examine them and decide - return host.AddressList - .Where(i => i.AddressFamily == AddressFamily.InterNetwork || i.AddressFamily == AddressFamily.InterNetworkV6) - .Reverse(); - } - - /// <summary> - /// Gets a random port number that is currently available - /// </summary> - /// <returns>System.Int32.</returns> - public int GetRandomUnusedTcpPort() - { - var listener = new TcpListener(IPAddress.Any, 0); - listener.Start(); - var port = ((IPEndPoint)listener.LocalEndpoint).Port; - listener.Stop(); - return port; - } - - public int GetRandomUnusedUdpPort() - { - var localEndPoint = new IPEndPoint(IPAddress.Any, 0); - using (var udpClient = new UdpClient(localEndPoint)) - { - var port = ((IPEndPoint)(udpClient.Client.LocalEndPoint)).Port; - return port; - } - } - - private List<string> _macAddresses; - public List<string> GetMacAddresses() - { - if (_macAddresses == null) - { - _macAddresses = GetMacAddressesInternal(); - } - return _macAddresses; - } - - private static List<string> GetMacAddressesInternal() - { - return NetworkInterface.GetAllNetworkInterfaces() - .Where(i => i.NetworkInterfaceType != NetworkInterfaceType.Loopback) - .Select(i => - { - try - { - var physicalAddress = i.GetPhysicalAddress(); - - if (physicalAddress == null) - { - return null; - } - - return physicalAddress.ToString(); - } - catch (Exception) - { - //TODO Log exception. - return null; - } - }) - .Where(i => i != null) - .ToList(); - } - - /// <summary> - /// Parses the specified endpointstring. - /// </summary> - /// <param name="endpointstring">The endpointstring.</param> - /// <returns>IPEndPoint.</returns> - public IPEndPoint Parse(string endpointstring) - { - return Parse(endpointstring, -1).Result; - } - - /// <summary> - /// Parses the specified endpointstring. - /// </summary> - /// <param name="endpointstring">The endpointstring.</param> - /// <param name="defaultport">The defaultport.</param> - /// <returns>IPEndPoint.</returns> - /// <exception cref="ArgumentException">Endpoint descriptor may not be empty.</exception> - /// <exception cref="FormatException"></exception> - private static async Task<IPEndPoint> Parse(string endpointstring, int defaultport) - { - if (string.IsNullOrEmpty(endpointstring) - || endpointstring.Trim().Length == 0) - { - throw new ArgumentException("Endpoint descriptor may not be empty."); - } - - if (defaultport != -1 && - (defaultport < IPEndPoint.MinPort - || defaultport > IPEndPoint.MaxPort)) - { - throw new ArgumentException(string.Format("Invalid default port '{0}'", defaultport)); - } - - string[] values = endpointstring.Split(new char[] { ':' }); - IPAddress ipaddy; - int port = -1; - - //check if we have an IPv6 or ports - if (values.Length <= 2) // ipv4 or hostname - { - port = values.Length == 1 ? defaultport : GetPort(values[1]); - - //try to use the address as IPv4, otherwise get hostname - if (!IPAddress.TryParse(values[0], out ipaddy)) - ipaddy = await GetIPfromHost(values[0]).ConfigureAwait(false); - } - else if (values.Length > 2) //ipv6 - { - //could [a:b:c]:d - if (values[0].StartsWith("[") && values[values.Length - 2].EndsWith("]")) - { - string ipaddressstring = string.Join(":", values.Take(values.Length - 1).ToArray()); - ipaddy = IPAddress.Parse(ipaddressstring); - port = GetPort(values[values.Length - 1]); - } - else //[a:b:c] or a:b:c - { - ipaddy = IPAddress.Parse(endpointstring); - port = defaultport; - } - } - else - { - throw new FormatException(string.Format("Invalid endpoint ipaddress '{0}'", endpointstring)); - } - - if (port == -1) - throw new ArgumentException(string.Format("No port specified: '{0}'", endpointstring)); - - return new IPEndPoint(ipaddy, port); - } - - protected static readonly CultureInfo UsCulture = new CultureInfo("en-US"); - - /// <summary> - /// Gets the port. - /// </summary> - /// <param name="p">The p.</param> - /// <returns>System.Int32.</returns> - /// <exception cref="FormatException"></exception> - private static int GetPort(string p) - { - if (!int.TryParse(p, out var port) - || port < IPEndPoint.MinPort - || port > IPEndPoint.MaxPort) - { - throw new FormatException(string.Format("Invalid end point port '{0}'", p)); - } - - return port; - } - - /// <summary> - /// Gets the I pfrom host. - /// </summary> - /// <param name="p">The p.</param> - /// <returns>IPAddress.</returns> - /// <exception cref="ArgumentException"></exception> - private static async Task<IPAddress> GetIPfromHost(string p) - { - var hosts = await Dns.GetHostAddressesAsync(p).ConfigureAwait(false); - - if (hosts == null || hosts.Length == 0) - throw new ArgumentException(string.Format("Host not found: {0}", p)); - - return hosts[0]; - } - - public IpAddressInfo ParseIpAddress(string ipAddress) - { - if (TryParseIpAddress(ipAddress, out var info)) - { - return info; - } - - throw new ArgumentException("Invalid ip address: " + ipAddress); - } - - public bool TryParseIpAddress(string ipAddress, out IpAddressInfo ipAddressInfo) - { - if (IPAddress.TryParse(ipAddress, out var address)) - { - ipAddressInfo = ToIpAddressInfo(address); - return true; - } - - ipAddressInfo = null; - return false; - } - - public static IpEndPointInfo ToIpEndPointInfo(IPEndPoint endpoint) - { - if (endpoint == null) - { - return null; - } - - return new IpEndPointInfo(ToIpAddressInfo(endpoint.Address), endpoint.Port); - } - - public static IPEndPoint ToIPEndPoint(IpEndPointInfo endpoint) - { - if (endpoint == null) - { - return null; - } - - return new IPEndPoint(ToIPAddress(endpoint.IpAddress), endpoint.Port); - } - - public static IPAddress ToIPAddress(IpAddressInfo address) - { - if (address.Equals(IpAddressInfo.Any)) - { - return IPAddress.Any; - } - if (address.Equals(IpAddressInfo.IPv6Any)) - { - return IPAddress.IPv6Any; - } - if (address.Equals(IpAddressInfo.Loopback)) - { - return IPAddress.Loopback; - } - if (address.Equals(IpAddressInfo.IPv6Loopback)) - { - return IPAddress.IPv6Loopback; - } - - return IPAddress.Parse(address.Address); - } - - public static IpAddressInfo ToIpAddressInfo(IPAddress address) - { - if (address.Equals(IPAddress.Any)) - { - return IpAddressInfo.Any; - } - if (address.Equals(IPAddress.IPv6Any)) - { - return IpAddressInfo.IPv6Any; - } - if (address.Equals(IPAddress.Loopback)) - { - return IpAddressInfo.Loopback; - } - if (address.Equals(IPAddress.IPv6Loopback)) - { - return IpAddressInfo.IPv6Loopback; - } - return new IpAddressInfo(address.ToString(), address.AddressFamily == AddressFamily.InterNetworkV6 ? IpAddressFamily.InterNetworkV6 : IpAddressFamily.InterNetwork); - } - - public async Task<IpAddressInfo[]> GetHostAddressesAsync(string host) - { - var addresses = await Dns.GetHostAddressesAsync(host).ConfigureAwait(false); - return addresses.Select(ToIpAddressInfo).ToArray(); - } - - /// <summary> - /// Gets the network shares. - /// </summary> - /// <param name="path">The path.</param> - /// <returns>IEnumerable{NetworkShare}.</returns> - public virtual IEnumerable<NetworkShare> GetNetworkShares(string path) - { - return new List<NetworkShare>(); - } - - /// <summary> - /// Gets available devices within the domain - /// </summary> - /// <returns>PC's in the Domain</returns> - public virtual IEnumerable<FileSystemEntryInfo> GetNetworkDevices() - { - return new List<FileSystemEntryInfo>(); - } - } -} |