From 68c795fe81277f73aeb90d8ad4c6f4305f32c906 Mon Sep 17 00:00:00 2001
From: Peter Dettman <peter.dettman@bouncycastle.org>
Date: Mon, 12 Jul 2021 15:15:36 +0700
Subject: Port of new TLS API from bc-java

---
 crypto/src/tls/ProtocolName.cs | 88 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 crypto/src/tls/ProtocolName.cs

(limited to 'crypto/src/tls/ProtocolName.cs')

diff --git a/crypto/src/tls/ProtocolName.cs b/crypto/src/tls/ProtocolName.cs
new file mode 100644
index 000000000..529e81b19
--- /dev/null
+++ b/crypto/src/tls/ProtocolName.cs
@@ -0,0 +1,88 @@
+using System;
+using System.IO;
+
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Tls
+{
+    /// <summary>RFC 7301 Represents a protocol name for use with ALPN.</summary>
+    public sealed class ProtocolName
+    {
+        public static ProtocolName AsRawBytes(byte[] bytes)
+        {
+            return new ProtocolName(Arrays.Clone(bytes));
+        }
+
+        public static ProtocolName AsUtf8Encoding(String name)
+        {
+            return new ProtocolName(Strings.ToUtf8ByteArray(name));
+        }
+
+        public static readonly ProtocolName Http_1_1 = AsUtf8Encoding("http/1.1");
+        public static readonly ProtocolName Spdy_1 = AsUtf8Encoding("spdy/1");
+        public static readonly ProtocolName Spdy_2 = AsUtf8Encoding("spdy/2");
+        public static readonly ProtocolName Spdy_3 = AsUtf8Encoding("spdy/3");
+        public static readonly ProtocolName Stun_Turn = AsUtf8Encoding("stun.turn");
+        public static readonly ProtocolName Stun_Nat_Discovery = AsUtf8Encoding("stun.nat-discovery");
+        public static readonly ProtocolName Http_2_Tls = AsUtf8Encoding("h2");
+        public static readonly ProtocolName Http_2_Tcp = AsUtf8Encoding("h2c");
+        public static readonly ProtocolName WebRtc = AsUtf8Encoding("webrtc");
+        public static readonly ProtocolName WebRtc_Confidential = AsUtf8Encoding("c-webrtc");
+        public static readonly ProtocolName Ftp = AsUtf8Encoding("ftp");
+        public static readonly ProtocolName Imap = AsUtf8Encoding("imap");
+        public static readonly ProtocolName Pop3 = AsUtf8Encoding("pop3");
+        public static readonly ProtocolName ManageSieve = AsUtf8Encoding("managesieve");
+        public static readonly ProtocolName Coap = AsUtf8Encoding("coap");
+        public static readonly ProtocolName Xmpp_Client = AsUtf8Encoding("xmpp-client");
+        public static readonly ProtocolName Xmpp_Server = AsUtf8Encoding("xmpp-server");
+
+        private readonly byte[] m_bytes;
+
+        private ProtocolName(byte[] bytes)
+        {
+            if (bytes == null)
+                throw new ArgumentNullException("bytes");
+            if (bytes.Length < 1 || bytes.Length > 255)
+                throw new ArgumentException("must have length from 1 to 255", "bytes");
+
+            this.m_bytes = bytes;
+        }
+
+        public byte[] GetBytes()
+        {
+            return Arrays.Clone(m_bytes);
+        }
+
+        public string GetUtf8Decoding()
+        {
+            return Strings.FromUtf8ByteArray(m_bytes);
+        }
+
+        /// <summary>Encode this <see cref="ProtocolName"/> to a <see cref="Stream"/>.</summary>
+        /// <param name="output">the <see cref="Stream"/> to encode to.</param>
+        /// <exception cref="IOException"/>
+        public void Encode(Stream output)
+        {
+            TlsUtilities.WriteOpaque8(m_bytes, output);
+        }
+
+        /// <summary>Parse a <see cref="ProtocolName"/> from a <see cref="Stream"/>.</summary>
+        /// <param name="input">the <see cref="Stream"/> to parse from.</param>
+        /// <returns>a <see cref="ProtocolName"/> object.</returns>
+        /// <exception cref="IOException"/>
+        public static ProtocolName Parse(Stream input)
+        {
+            return new ProtocolName(TlsUtilities.ReadOpaque8(input, 1));
+        }
+
+        public override bool Equals(object obj)
+        {
+            return obj is ProtocolName && Arrays.AreEqual(m_bytes, ((ProtocolName)obj).m_bytes);
+        }
+
+        public override int GetHashCode()
+        {
+            return Arrays.GetHashCode(m_bytes);
+        }
+    }
+}
-- 
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