mirror of
https://gitee.com/ThingsGateway/ThingsGateway.git
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93 lines
4.3 KiB
C#
93 lines
4.3 KiB
C#
#region copyright
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//------------------------------------------------------------------------------
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// 此代码版权声明为全文件覆盖，如有原作者特别声明，会在下方手动补充
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// 此代码版权（除特别声明外的代码）归作者本人Diego所有
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// 源代码使用协议遵循本仓库的开源协议及附加协议
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// Gitee源代码仓库：https://gitee.com/diego2098/ThingsGateway
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// Github源代码仓库：https://github.com/kimdiego2098/ThingsGateway
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// 使用文档：https://diego2098.gitee.io/thingsgateway-docs/
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// QQ群：605534569
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//------------------------------------------------------------------------------
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#endregion
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//------------------------------------------------------------------------------
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// 此代码版权（除特别声明或在XREF结尾的命名空间的代码）归作者本人若汝棋茗所有
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// 源代码使用协议遵循本仓库的开源协议及附加协议，若本仓库没有设置，则按MIT开源协议授权
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// CSDN博客：https://blog.csdn.net/qq_40374647
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// 哔哩哔哩视频：https://space.bilibili.com/94253567
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// Gitee源代码仓库：https://gitee.com/RRQM_Home
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// Github源代码仓库：https://github.com/RRQM
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// API首页：http://rrqm_home.gitee.io/touchsocket/
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// 交流QQ群：234762506
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// 感谢您的下载和使用
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//------------------------------------------------------------------------------
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//------------------------------------------------------------------------------
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namespace ThingsGateway.Foundation.Http.WebSockets
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{
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/// <summary>
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/// WebSocketServerExtensions
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/// </summary>
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public static class WebSocketServerExtension
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{
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/// <summary>
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/// 转化Protocol协议标识为<see cref="Protocol.WebSocket"/>
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/// </summary>
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/// <param name="client"></param>
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/// <param name="httpContext">Http上下文</param>
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public static async Task<bool> SwitchProtocolToWebSocket<TClient>(this TClient client, HttpContext httpContext) where TClient : IHttpSocketClient
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{
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if (client.Protocol == Protocol.WebSocket)
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{
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return true;
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}
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if (client.Protocol == Protocol.Http)
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{
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if (WSTools.TryGetResponse(httpContext.Request, httpContext.Response))
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{
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var args = new HttpContextEventArgs(new HttpContext(httpContext.Request, httpContext.Response))
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{
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IsPermitOperation = true
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};
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await client.PluginsManager.RaiseAsync(nameof(IWebSocketHandshakingPlugin.OnWebSocketHandshaking), client, args).ConfigureAwait(false);
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if (args.Context.Response.Responsed)
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{
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return false;
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}
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if (args.IsPermitOperation)
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{
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client.SetDataHandlingAdapter(new WebSocketDataHandlingAdapter());
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client.Protocol = Protocol.WebSocket;
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client.SetValue(WebSocketFeature.HandshakedProperty, true);//设置握手状态
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using (var byteBlock = new ByteBlock())
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{
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args.Context.Response.Build(byteBlock);
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await client.DefaultSendAsync(byteBlock).ConfigureAwait(false);
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}
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await client.PluginsManager.RaiseAsync(nameof(IWebSocketHandshakedPlugin.OnWebSocketHandshaked), client, new HttpContextEventArgs(httpContext))
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.ConfigureAwait(false);
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return true;
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}
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else
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{
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args.Context.Response.SetStatus(403, "Forbidden");
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using (var byteBlock = new ByteBlock())
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{
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args.Context.Response.Build(byteBlock);
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await client.DefaultSendAsync(byteBlock).ConfigureAwait(false);
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}
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client.Close("主动拒绝WebSocket连接");
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}
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}
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else
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{
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client.Close("WebSocket连接协议不正确");
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}
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}
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return false;
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}
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}
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} |