using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Http;

namespace AngularTemplateDrivenFormsLab.Utils
{
    public class ContentSecurityPolicyMiddleware
    {
        private readonly RequestDelegate _next;

        public ContentSecurityPolicyMiddleware(RequestDelegate next)
        {
            _next = next;
        }

        public Task Invoke(HttpContext context)
        {
            context.Response.Headers.Add("X-Frame-Options", "SAMEORIGIN");
            context.Response.Headers.Add("X-Xss-Protection", "1; mode=block");
            context.Response.Headers.Add("X-Content-Type-Options", "nosniff");

            string[] csp =
            {
              "default-src 'self'",
              "style-src 'self' 'unsafe-inline'",
              "script-src 'self' 'unsafe-inline' 'unsafe-eval'",
              "font-src 'self'",
              "img-src 'self' data:",
              "connect-src 'self'",
              "media-src 'self'",
              "object-src 'self'",
              "report-uri /api/CspReport/Log" //TODO: Add api/CspReport/Log
            };
            context.Response.Headers.Add("Content-Security-Policy", string.Join("; ", csp));
            return _next(context);
        }
    }

    public static class ContentSecurityPolicyMiddlewareExtensions
    {
        /// <summary>
        /// Make sure you add this code BEFORE app.UseStaticFiles();,
        /// otherwise the headers will not be applied to your static files.
        /// </summary>
        public static IApplicationBuilder UseContentSecurityPolicy(this IApplicationBuilder builder)
        {
            return builder.UseMiddleware<ContentSecurityPolicyMiddleware>();
        }
    }
}

public void Configure(IApplicationBuilder app)
{
   app.UseContentSecurityPolicy();

 context.Response.Headers.Add("X-Frame-Options", "SAMEORIGIN");

 context.Response.Headers.Add("X-Xss-Protection", "1; mode=block");

 context.Response.Headers.Add("X-Content-Type-Options", "nosniff");

string[] csp =
            {
              "default-src 'self'",
              "style-src 'self' 'unsafe-inline'",
              "script-src 'self' 'unsafe-inline' 'unsafe-eval'",
              "font-src 'self'",
              "img-src 'self' data:",
              "connect-src 'self'",
              "media-src 'self'",
              "object-src 'self'",
              "report-uri /api/CspReport/Log" //TODO: Add api/CspReport/Log
            };
context.Response.Headers.Add("Content-Security-Policy", string.Join("; ", csp));

 Set-Cookie: sess=abc123; path=/; SameSite

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <system.webServer>
    <rewrite>
      <outboundRules>
        <clear />
        <!-- https://scotthelme.co.uk/csrf-is-dead/ -->
        <rule name="Add SameSite" preCondition="No SameSite">
          <match serverVariable="RESPONSE_Set_Cookie" pattern=".*" negate="false" />
          <action type="Rewrite" value="{R:0}; SameSite=lax" />
          <conditions></conditions>
        </rule>
        <preConditions>
          <preCondition name="No SameSite">
            <add input="{RESPONSE_Set_Cookie}" pattern="." />
            <add input="{RESPONSE_Set_Cookie}" pattern="; SameSite=lax" negate="true" />
          </preCondition>
        </preConditions>
      </outboundRules>
    </rewrite>
  </system.webServer>
</configuration>

   "report-uri /api/CspReport/Log" //TODO: Add api/CspReport/Log

{
  "csp-report": {
    "document-uri": "http://localhost:5000/untypedSha",
    "referrer": "",
    "violated-directive": "script-src",
    "effective-directive": "script-src",
    "original-policy": "default-src 'self'; style-src 'self'; script-src 'self'; font-src 'self'; img-src 'self' data:; connect-src 'self'; media-src 'self'; object-src 'self'; report-uri /api/Home/CspReport",
    "disposition": "enforce",
    "blocked-uri": "eval",
    "line-number": 21,
    "column-number": 8,
    "source-file": "http://localhost:5000/scripts.bundle.js",
    "status-code": 200,
    "script-sample": ""
  }
}

    class CspPost
    {
        [JsonProperty("csp-report")]
        public CspReport CspReport { get; set; }
    }

    class CspReport
    {
        [JsonProperty("document-uri")]
        public string DocumentUri { get; set; }

        [JsonProperty("referrer")]
        public string Referrer { get; set; }

        [JsonProperty("violated-directive")]
        public string ViolatedDirective { get; set; }

        [JsonProperty("effective-directive")]
        public string EffectiveDirective { get; set; }

        [JsonProperty("original-policy")]
        public string OriginalPolicy { get; set; }

        [JsonProperty("disposition")]
        public string Disposition { get; set; }

        [JsonProperty("blocked-uri")]
        public string BlockedUri { get; set; }

        [JsonProperty("line-number")]
        public int LineNumber { get; set; }

        [JsonProperty("column-number")]
        public int ColumnNumber { get; set; }

        [JsonProperty("source-file")]
        public string SourceFile { get; set; }

        [JsonProperty("status-code")]
        public string StatusCode { get; set; }

        [JsonProperty("script-sample")]
        public string ScriptSample { get; set; }
    }

namespace AngularTemplateDrivenFormsLab.Controllers
{
    [Route("api/[controller]")]
    public class CspReportController : Controller
    {
        [HttpPost("[action]")]
        [IgnoreAntiforgeryToken]
        public async Task<IActionResult> Log()
        {
            CspPost cspPost;
            using (var bodyReader = new StreamReader(this.HttpContext.Request.Body))
            {
                var body = await bodyReader.ReadToEndAsync().ConfigureAwait(false);
                this.HttpContext.Request.Body = new MemoryStream(Encoding.UTF8.GetBytes(body));
                cspPost = JsonConvert.DeserializeObject<CspPost>(body);
            }

            //TODO: log cspPost

            return Ok();
        }
    }
}

مقدمه 

دسترسی به این پارامترها از طریق تب mining models  امکان پذیر می‌باشد. با کلیک بر روی الگوریتم پنجره، properties  آن نمایش داده خواهد شد حال می‌توان به بخش Algorithm Parameters  رفت و پارامترها را مقداردهی کرد. 

 PM> Install-Package Microsoft.AspNet.SignalR.JS

 Signalr.exe ghp http://localhost/

 $.connection

 $.connection.chatHub

<script src="http://localhost:1072/signalr/hubs" type="text/javascript"></script>

 - webSockets
- forverFrame
- serverSentEvents
- longPolling

 $.connection.hub.url = 'http://localhost:1072/signalr'; //چون در یک پروژه دیگر قرار داریم

using System;
using System.Web;
using System.Web.Routing;
using Microsoft.AspNet.SignalR;

namespace SignalR02
{
    public class Global : HttpApplication
    {
        protected void Application_Start(object sender, EventArgs e)
        {
            // Register the default hubs route: ~/signalr
            RouteTable.Routes.MapHubs(new HubConfiguration
            {
                EnableCrossDomain = true
            });
        }
    }
}

 SignalR: Auto detected cross domain url. jquery.signalR-1.0.1.min.js:10
SignalR: Negotiating with 'http://localhost:1072/signalr/negotiate'. jquery.signalR-1.0.1.min.js:10
SignalR: SignalR: Initializing long polling connection with server. jquery.signalR-1.0.1.min.js:10
SignalR: Attempting to connect to 'http://localhost:1072/signalr/connect?transport=longPolling&connectionToken…NRh72omzsPkKqhKw2&connectionData=%5B%7B%22name%22%3A%22chat%22%7D%5D&tid=3' using longPolling. jquery.signalR-1.0.1.min.js:10
SignalR: Longpolling connected jquery.signalR-1.0.1.min.js:10

<!DOCTYPE>
<html>
<head>
    <title></title>
    <script src="Scripts/jquery-1.6.4.min.js" type="text/javascript"></script>
    <script src="Scripts/jquery.signalR-1.0.1.min.js" type="text/javascript"></script>
</head>
<body>
    <div>
        <input id="txtMsg" type="text" /><input id="send" type="button" value="send msg" />
        <ul id="messages">
        </ul>
    </div>
    <script type="text/javascript">
        $(function () {                        
            $.connection.hub.logging = true; //اطلاعات بیشتری را در جاوا اسکریپت کنسول مرورگر لاگ می‌کند

            var connection = $.hubConnection();
            connection.url = 'http://localhost:1072/signalr'; //چون در یک پروژه دیگر قرار داریم
            var proxy = connection.createHubProxy('chat');

            proxy.on('hello', function (message) {
                //متدی که در اینجا تعریف شده دقیقا مطابق نام متد پویایی است که در هاب تعریف شده است
                //به این ترتیب سرور می‌تواند کلاینت را فراخوانی کند
                $("#messages").append("<li>" + message + "</li>");
            });

            $("#send").click(function () {
                // Hub's `SendMessage` should be camel case here
                proxy.invoke('sendMessage', $("#txtMsg").val());
            });

            connection.start();
        });
    </script>
</body>
</html>

 PM> Install-Package Microsoft.AspNet.SignalR.Client

using System;
using Microsoft.AspNet.SignalR.Client.Hubs;

namespace SignalR02.WinClient
{
    class Program
    {
        static void Main(string[] args)
        {
            var hubConnection = new HubConnection(url: "http://localhost:1072/signalr");
            var chat = hubConnection.CreateHubProxy(hubName: "chat");

            chat.On<string>("hello", msg => {
                Console.WriteLine(msg);
            });

            hubConnection.Start().Wait();

            chat.Invoke<string>("sendMessage", "Hello!");

            Console.WriteLine("Press a key to terminate the client...");
            Console.Read();
        }
    }
}

• هنگامیکه خطایی رخ نداده است، محتوای فرزند خود را رندر می‌کند. 
  
  
• هنگامیکه یک استثناء کنترل نشده رخ می‌دهد، صفحه‌ی خطای پیش فرضی را رندر می‌کند. 

  
  

<div>
    <div>
        <ErrorBoundary>
            @Body
        </ErrorBoundary>
    </div>
</div>

<ErrorBoundary>
    <ChildContent>
        @Body
    </ChildContent>
    <ErrorContent>
        <p class="errorUI">متاسفانه خطایی رخ داده است!</p>
    </ErrorContent>
</ErrorBoundary>

...

<ErrorBoundary @ref="errorBoundary">
    @Body
</ErrorBoundary>

...

@code {
    private ErrorBoundary? errorBoundary;

    protected override void OnParametersSet()
    {
        errorBoundary?.Recover();
    }
}