add providers to oembed, add robots.txt

Controllers/HomeController.cs

@@ -44,7 +44,7 @@ namespace yaflay.ru.Новая_папка
             
             string? url = await getUrlFromGit(uri);
 
-            return Redirect(url != null ? url : uri);
+            return Redirect(url != null ? url : "https://yaflay.ru/");
         }
 
         // GET: HomeController/Create

Pages/RobotsTxt.cshtml

@@ -0,0 +1,9 @@
+@page
+@{
+    Layout = null;
+    this.Response.ContentType = "text/plain";
+}
+# /robots.txt file for http://www.hanselman.com/
+User-agent: *
+<environment include="Development,Staging">Disallow: /</environment>
+<environment include="Production">Disallow: /* </environment>

Startup.cs

@@ -1,5 +1,7 @@
 using Microsoft.Extensions.Options;
 using HeyRed.OEmbed;
+using HeyRed.OEmbed.Providers;
+
 namespace yaflay.ru
 {
     public class Startup
@@ -26,7 +28,30 @@ namespace yaflay.ru
             {
                 options.EnableCache = true; // true by default
                 options.EnsureNotNull();
-            });
+            })
+                .ClearProviders()
+                .AddProvider<YoutubeProvider>()
+                .AddProvider<YandexMusicProvider>()
+                .AddProvider<FlickrProvider>()
+                .AddProvider<TwitterProvider>(options =>
+                {
+                    options.Parameters = new Dictionary<string, string?>
+                    {
+                        ["theme"] = "dark"
+                    };
+                })
+                .AddProvider<FacebookProvider>(options =>
+                {
+                    options.Parameters = new Dictionary<string, string?>
+                    {
+                        ["access_token"] = "app_id|token"
+                    };
+                });
+            services.AddMvc()
+                .AddRazorPagesOptions(options =>
+                {
+                    options.Conventions.AddPageRoute("/robotstxt", "/Robots.Txt");
+                });
             //services.AddDirectoryBrowser();
 
 

yaflay.ru.sln

@@ -3,7 +3,7 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 17
 VisualStudioVersion = 17.6.33723.286
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "yaflay.ru", "yaflay.ru.csproj", "{3AA2FE9B-D1AF-4B12-B090-7E4529BA40E0}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "yaflay.ru", "yaflay.ru.csproj", "{3AA2FE9B-D1AF-4B12-B090-7E4529BA40E0}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution