• قسمت 4 : بخش 1 - Data Binding
• قسمت 5 : بخش 2 - کامپوننت‌ها
  
• قسمت 6 : بخش 3 - چرخه‌های حیات کامپوننت‌ها
  
• قسمت 7 : بخش 4 - انتقال اطلاعات از کامپوننت‌های فرزند به کامپوننت والد
  
• قسمت 8 : بخش 5 - تامین محتوای نمایشی کامپوننت‌های فرزند توسط کامپوننت والد
• قسمت 9 : بخش 6 - ساده سازی تعاریف ویژگی‌های المان‌ها و انتقال پارامترها به چندین زیر سطح
• قسمت 10 : بخش 7 - مسیریابی
• قسمت 11 : بخش 8 - کار با جاوا اسکریپت
• قسمت 12 : بخش 9 - یک تمرین

• قسمت 13 : بخش 1 - کار با EF Core در برنامه‌های Blazor Server
  
• قسمت 14 : بخش 2 - تعریف فرم‌ها و اعتبارسنجی آن‌ها
  
• قسمت 15 : بخش 3 - ویرایش اطلاعات
  
• قسمت 16 : بخش 4 - تهیه سرویس‌های آپلود تصاویر
• قسمت 17 : بخش 5 - آپلود تصاویر
• قسمت 18 : بخش 6 - حذف اطلاعات
• قسمت 19 : بخش 7 - نکات ویژه‌ی کار با EF-Core در برنامه‌های Blazor Server 
• قسمت 20 : بخش 8 - استفاده از یک کامپوننت ثالث HTML Editor 
  

 PM> Install-Package Microsoft.AspNetCore.ResponseCompression

{
    "dependencies": {
        "Microsoft.AspNetCore.ResponseCompression": "1.0.0"
    }
}

public void ConfigureServices(IServiceCollection services)
{
    services.AddResponseCompression(options =>
    {
        options.MimeTypes = Microsoft.AspNetCore.ResponseCompression.ResponseCompressionDefaults.MimeTypes;
    });
}

namespace Microsoft.AspNetCore.ResponseCompression
{
    /// <summary>
    /// Defaults for the ResponseCompressionMiddleware
    /// </summary>
    public class ResponseCompressionDefaults
    {
        /// <summary>
        /// Default MIME types to compress responses for.
        /// </summary>
        // This list is not intended to be exhaustive, it's a baseline for the 90% case.
        public static readonly IEnumerable<string> MimeTypes = new[]
        {
            // General
            "text/plain",
            // Static files
            "text/css",
            "application/javascript",
            // MVC
            "text/html",
            "application/xml",
            "text/xml",
            "application/json",
            "text/json",
        };
    }
}

services.AddResponseCompression(options =>
{
    options.MimeTypes = ResponseCompressionDefaults.MimeTypes.Concat(new[]
                                {
                                    "image/svg+xml",
                                    "application/font-woff2"
                                });
            });

services.AddResponseCompression(options =>
{
  //If no compression providers are specified then GZip is used by default.
  //options.Providers.Add<GzipCompressionProvider>();

services.Configure<GzipCompressionProviderOptions>(options =>
{
  options.Level = System.IO.Compression.CompressionLevel.Optimal;
});

 options.EnableForHttps = true;

public void Configure(IApplicationBuilder app)
{
   app.UseResponseCompression()  // Adds the response compression to the request pipeline
   .UseStaticFiles(); // Adds the static middleware to the request pipeline  
}

public void Configure(IApplicationBuilder app,
                      IHostingEnvironment env,
                      ILoggerFactory loggerFactory)
{
    app.UseResponseCompression()
       .UseStaticFiles(
           new StaticFileOptions
           {
               OnPrepareResponse =
                   _ => _.Context.Response.Headers[HeaderNames.CacheControl] = 
                        "public,max-age=604800" // A week in seconds
           })
       .UseMvc(routes => routes.MapRoute("default", "{controller=Home}/{action=Index}/{id?}"));
}

 PM> Install-Package Microsoft.AspNetCore.Rewrite

public void Configure(IApplicationBuilder app)
{
    app.UseRewriter(new RewriteOptions()
                            .AddRedirectToHttps()
                            .AddRewrite(@"app/(\d+)", "app?id=$1", skipRemainingRules: false) // Rewrite based on a Regular expression
                            //.AddRedirectToHttps(302, 5001) // Redirect to a different port and use HTTPS
                            .AddRedirect("(.*)/$", "$1")  // remove trailing slash, Redirect using a regular expression
                            .AddRedirect(@"^section1/(.*)", "new/$1", (int)HttpStatusCode.Redirect)
                            .AddRedirect(@"^section2/(\\d+)/(.*)", "new/$1/$2", (int)HttpStatusCode.MovedPermanently)
                            .AddRewrite("^feed$", "/?format=rss", skipRemainingRules: false));

 app.UseRewriter(new RewriteOptions()
.AddIISUrlRewrite(env.ContentRootFileProvider, "web.config")
.AddApacheModRewrite(env.ContentRootFileProvider, ".htaccess"));

public class RedirectWwwRule : Microsoft.AspNetCore.Rewrite.IRule
{
    public int StatusCode { get; } = (int)HttpStatusCode.MovedPermanently;
    public bool ExcludeLocalhost { get; set; } = true;
    public void ApplyRule(RewriteContext context)
    {
        var request = context.HttpContext.Request;
        var host = request.Host;
        if (host.Host.StartsWith("www", StringComparison.OrdinalIgnoreCase))
        {
            context.Result = RuleResult.ContinueRules;
            return;
        }
        if (ExcludeLocalhost && string.Equals(host.Host, "localhost", StringComparison.OrdinalIgnoreCase))
        {
            context.Result = RuleResult.ContinueRules;
            return;
        }
        string newPath = request.Scheme + "://www." + host.Value + request.PathBase + request.Path + request.QueryString;
 
        var response = context.HttpContext.Response;
        response.StatusCode = StatusCode;
        response.Headers[HeaderNames.Location] = newPath;
        context.Result = RuleResult.EndResponse; // Do not continue processing the request
    }
}

 app.UseRewriter(new RewriteOptions().Add(new RedirectWwwRule()));

 var options = new RewriteOptions().Add(app.ApplicationServices.GetService<RedirectWwwRule>());

There’s a ton of small bug fixes in this release, quite a few enhancements and a few larger new features. Configuration performance went up quite a bit, and I’ve laid the groundwork to make in-memory mapping a lot faster in the future. LINQ projection has gotten to the point where you can do anything that the major query providers support.

The 6.0.0 release of Angular is here! This is a major release focused less on the underlying framework, and more on the toolchain and on making it easier to move quickly with Angular in the future. 

Chrome Extension with Blazor WASM - The Migration 

Blazor – All along the way – Hybrid Apps 

Top Issues Fixed in Visual Studio 2019 version 16.2.5

• Visual Studio stops respsonding on creating a new SSIS project
• Fixed UI freezes occurring after extended usage of the editor.

Security Advisory Notices

CVE-2019-1232 Diagnostics Hub Standard Collector Service Elevation of Privilege Vulnerability

An elevation of privilege vulnerability exists when the Diagnostics Hub Standard Collector Service improperly impersonates certain file operations. An attacker who successfully exploited this vulnerability could gain elevated privileges. An attacker with unprivileged access to a vulnerable system could exploit this vulnerability. The security update addresses the vulnerability by ensuring the Diagnostics Hub Standard Collector Service properly impersonates file operations.

CVE-2019-1301: Denial of Service Vulnerability in .NET Core

A denial of service vulnerability exists when .NET Core improperly handles web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against a .NET Core web application. The vulnerability can be exploited remotely, without authentication.

The update addresses the vulnerability by correcting how the .NET Core web application handles web requests.

One thing that keeps amazing me is how many smart developers still feel the urge to write their own data access layer (DAL). They either do it all manually, or they generate parts of it, or they generate the whole thing. Whichever way you go, there are still various alternative paths you can choose from.