80 lines
3.0 KiB
C#
80 lines
3.0 KiB
C#
// Copyright (c) Microsoft Open Technologies, Inc.
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// All Rights Reserved
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR
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// CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING
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// WITHOUT LIMITATION ANY IMPLIED WARRANTIES OR CONDITIONS OF
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// TITLE, FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABLITY OR
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// NON-INFRINGEMENT.
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// See the Apache 2 License for the specific language governing
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// permissions and limitations under the License.
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//------------------------------------------------------------------------------
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// <copyright file="ServerWebSocket.cs" company="Microsoft">
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// </copyright>
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//------------------------------------------------------------------------------
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using System;
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using System.Diagnostics.CodeAnalysis;
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using System.Diagnostics.Contracts;
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using System.IO;
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using System.Runtime.InteropServices;
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namespace Microsoft.Net.WebSockets
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{
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internal sealed class ServerWebSocket : WebSocketBase
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{
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private readonly SafeHandle _sessionHandle;
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private readonly UnsafeNativeMethods.WebSocketProtocolComponent.Property[] _properties;
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public ServerWebSocket(Stream innerStream,
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string subProtocol,
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int receiveBufferSize,
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TimeSpan keepAliveInterval,
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ArraySegment<byte> internalBuffer)
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: base(innerStream, subProtocol, keepAliveInterval,
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WebSocketBuffer.CreateServerBuffer(internalBuffer, receiveBufferSize))
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{
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_properties = this.InternalBuffer.CreateProperties(false);
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_sessionHandle = this.CreateWebSocketHandle();
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if (_sessionHandle == null || _sessionHandle.IsInvalid)
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{
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WebSocketHelpers.ThrowPlatformNotSupportedException_WSPC();
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}
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StartKeepAliveTimer();
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}
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internal override SafeHandle SessionHandle
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{
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get
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{
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Contract.Assert(_sessionHandle != null, "'m_SessionHandle MUST NOT be NULL.");
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return _sessionHandle;
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}
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}
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[SuppressMessage("Microsoft.Security", "CA2122:DoNotIndirectlyExposeMethodsWithLinkDemands",
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Justification = "No arbitrary data controlled by PT code is leaking into native code.")]
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private SafeHandle CreateWebSocketHandle()
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{
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Contract.Assert(_properties != null, "'m_Properties' MUST NOT be NULL.");
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SafeWebSocketHandle sessionHandle;
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UnsafeNativeMethods.WebSocketProtocolComponent.WebSocketCreateServerHandle(_properties,
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_properties.Length,
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out sessionHandle);
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Contract.Assert(sessionHandle != null, "'sessionHandle MUST NOT be NULL.");
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return sessionHandle;
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}
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}
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}
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