77 lines
1.5 KiB
C#
77 lines
1.5 KiB
C#
using System;
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using System.IO;
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using Org.BouncyCastle.Utilities;
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namespace Org.BouncyCastle.Crypto.Tls;
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public class ServerName
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{
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protected readonly byte mNameType;
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protected readonly object mName;
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public virtual byte NameType => mNameType;
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public virtual object Name => mName;
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public ServerName(byte nameType, object name)
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{
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if (!IsCorrectType(nameType, name))
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{
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throw new ArgumentException("not an instance of the correct type", "name");
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}
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mNameType = nameType;
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mName = name;
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}
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public virtual string GetHostName()
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{
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if (!IsCorrectType(0, mName))
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{
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throw new InvalidOperationException("'name' is not a HostName string");
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}
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return (string)mName;
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}
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public virtual void Encode(Stream output)
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{
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TlsUtilities.WriteUint8(mNameType, output);
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if (mNameType == 0)
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{
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byte[] array = Strings.ToAsciiByteArray((string)mName);
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if (array.Length < 1)
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{
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throw new TlsFatalAlert(80);
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}
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TlsUtilities.WriteOpaque16(array, output);
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return;
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}
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throw new TlsFatalAlert(80);
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}
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public static ServerName Parse(Stream input)
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{
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byte b = TlsUtilities.ReadUint8(input);
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if (b == 0)
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{
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byte[] array = TlsUtilities.ReadOpaque16(input);
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if (array.Length < 1)
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{
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throw new TlsFatalAlert(50);
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}
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object name = Strings.FromAsciiByteArray(array);
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return new ServerName(b, name);
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}
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throw new TlsFatalAlert(50);
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}
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protected static bool IsCorrectType(byte nameType, object name)
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{
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if (nameType == 0)
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{
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return name is string;
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}
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throw new ArgumentException("unsupported NameType", "nameType");
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}
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}
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