1 files changed, 0 insertions, 159 deletions
diff --git a/SocketHttpListener/Net/WebSockets/HttpWebSocket.cs b/SocketHttpListener/Net/WebSockets/HttpWebSocket.cs
deleted file mode 100644
index b346cc98e..000000000
--- a/SocketHttpListener/Net/WebSockets/HttpWebSocket.cs
+++ /dev/null
@@ -1,159 +0,0 @@
-using System;
-using System.Diagnostics.CodeAnalysis;
-using System.Security.Cryptography;
-using System.Text;
-using System.Threading;
-
-namespace SocketHttpListener.Net.WebSockets
-{
-    internal static partial class HttpWebSocket
-    {
-        internal const string SecWebSocketKeyGuid = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
-        internal const string WebSocketUpgradeToken = "websocket";
-        internal const int DefaultReceiveBufferSize = 16 * 1024;
-        internal const int DefaultClientSendBufferSize = 16 * 1024;
-
-        [SuppressMessage("Microsoft.Security", "CA5350", Justification = "SHA1 used only for hashing purposes, not for crypto.")]
-        internal static string GetSecWebSocketAcceptString(string secWebSocketKey)
-        {
-            string retVal;
-
-            // SHA1 used only for hashing purposes, not for crypto. Check here for FIPS compat.
-            using (var sha1 = SHA1.Create())
-            {
-                string acceptString = string.Concat(secWebSocketKey, HttpWebSocket.SecWebSocketKeyGuid);
-                byte[] toHash = Encoding.UTF8.GetBytes(acceptString);
-                retVal = Convert.ToBase64String(sha1.ComputeHash(toHash));
-            }
-
-            return retVal;
-        }
-
-        // return value here signifies if a Sec-WebSocket-Protocol header should be returned by the server.
-        internal static bool ProcessWebSocketProtocolHeader(string clientSecWebSocketProtocol,
-            string subProtocol,
-            out string acceptProtocol)
-        {
-            acceptProtocol = string.Empty;
-            if (string.IsNullOrEmpty(clientSecWebSocketProtocol))
-            {
-                // client hasn't specified any Sec-WebSocket-Protocol header
-                if (subProtocol != null)
-                {
-                    // If the server specified _anything_ this isn't valid.
-                    throw new WebSocketException("UnsupportedProtocol");
-                }
-                // Treat empty and null from the server as the same thing here, server should not send headers.
-                return false;
-            }
-
-            // here, we know the client specified something and it's non-empty.
-
-            if (subProtocol == null)
-            {
-                // client specified some protocols, server specified 'null'. So server should send headers.
-                return true;
-            }
-
-            // here, we know that the client has specified something, it's not empty
-            // and the server has specified exactly one protocol
-
-            string[] requestProtocols = clientSecWebSocketProtocol.Split(new char[] { ',' },
-                StringSplitOptions.RemoveEmptyEntries);
-            acceptProtocol = subProtocol;
-
-            // client specified protocols, serverOptions has exactly 1 non-empty entry. Check that
-            // this exists in the list the client specified.
-            for (int i = 0; i < requestProtocols.Length; i++)
-            {
-                string currentRequestProtocol = requestProtocols[i].Trim();
-                if (string.Equals(acceptProtocol, currentRequestProtocol, StringComparison.OrdinalIgnoreCase))
-                {
-                    return true;
-                }
-            }
-
-            throw new WebSocketException("net_WebSockets_AcceptUnsupportedProtocol");
-        }
-
-        internal static void ValidateOptions(string subProtocol, int receiveBufferSize, int sendBufferSize, TimeSpan keepAliveInterval)
-        {
-            if (subProtocol != null)
-            {
-                WebSocketValidate.ValidateSubprotocol(subProtocol);
-            }
-
-            if (receiveBufferSize < MinReceiveBufferSize)
-            {
-                throw new ArgumentOutOfRangeException(nameof(receiveBufferSize), "The receiveBufferSize was too small.");
-            }
-
-            if (sendBufferSize < MinSendBufferSize)
-            {
-                throw new ArgumentOutOfRangeException(nameof(sendBufferSize), "The sendBufferSize was too small.");
-            }
-
-            if (receiveBufferSize > MaxBufferSize)
-            {
-                throw new ArgumentOutOfRangeException(nameof(receiveBufferSize), "The receiveBufferSize was too large.");
-            }
-
-            if (sendBufferSize > MaxBufferSize)
-            {
-                throw new ArgumentOutOfRangeException(nameof(sendBufferSize), "The sendBufferSize was too large.");
-            }
-
-            if (keepAliveInterval < Timeout.InfiniteTimeSpan) // -1 millisecond
-            {
-                throw new ArgumentOutOfRangeException(nameof(keepAliveInterval), "The keepAliveInterval was too small.");
-            }
-        }
-
-        internal const int MinSendBufferSize = 16;
-        internal const int MinReceiveBufferSize = 256;
-        internal const int MaxBufferSize = 64 * 1024;
-
-        private static void ValidateWebSocketHeaders(HttpListenerContext context)
-        {
-            if (!WebSocketsSupported)
-            {
-                throw new PlatformNotSupportedException("net_WebSockets_UnsupportedPlatform");
-            }
-
-            if (!context.Request.IsWebSocketRequest)
-            {
-                throw new WebSocketException("net_WebSockets_AcceptNotAWebSocket");
-            }
-
-            string secWebSocketVersion = context.Request.Headers[HttpKnownHeaderNames.SecWebSocketVersion];
-            if (string.IsNullOrEmpty(secWebSocketVersion))
-            {
-                throw new WebSocketException("net_WebSockets_AcceptHeaderNotFound");
-            }
-
-            if (!string.Equals(secWebSocketVersion, SupportedVersion, StringComparison.OrdinalIgnoreCase))
-            {
-                throw new WebSocketException("net_WebSockets_AcceptUnsupportedWebSocketVersion");
-            }
-
-            string secWebSocketKey = context.Request.Headers[HttpKnownHeaderNames.SecWebSocketKey];
-            bool isSecWebSocketKeyInvalid = string.IsNullOrWhiteSpace(secWebSocketKey);
-            if (!isSecWebSocketKeyInvalid)
-            {
-                try
-                {
-                    // key must be 16 bytes then base64-encoded
-                    isSecWebSocketKeyInvalid = Convert.FromBase64String(secWebSocketKey).Length != 16;
-                }
-                catch
-                {
-                    isSecWebSocketKeyInvalid = true;
-                }
-            }
-            if (isSecWebSocketKeyInvalid)
-            {
-                throw new WebSocketException("net_WebSockets_AcceptHeaderNotFound");
-            }
-        }
-    }
-}