Added plumbing

src/Skoruba.IdentityServer4.STS.Identity/Configuration/Constants/ConfigurationConsts.cs

@@ -3,7 +3,8 @@
     public class ConfigurationConsts
     {
         public const string AdminConnectionStringKey = "AdminConnection";
-   
+        public const string SendgridConnectionStringKey = "Sendgrid";
+
         public const string ResourcesPath = "Resources";
     }
 }
\ No newline at end of file

src/Skoruba.IdentityServer4.STS.Identity/Configuration/SmtpConfiguration.cs

@@ -10,7 +10,7 @@ namespace Skoruba.IdentityServer4.STS.Identity.Configuration
         public string Host { get; set; }
         public string Login { get; set; }
         public string Password { get; set; }
-        public int Port { get; set; } = 587;
+        public int Port { get; set; } = 587; // default smtp port
         public bool UseSSL { get; set; } = true;
     }
 }

src/Skoruba.IdentityServer4.STS.Identity/Helpers/StartupHelpers.cs

@@ -14,6 +14,7 @@ using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
+using SendGrid;
 using Serilog;
 using Skoruba.IdentityServer4.STS.Identity.Configuration;
 using Skoruba.IdentityServer4.STS.Identity.Configuration.Constants;
@@ -62,6 +63,29 @@ namespace Skoruba.IdentityServer4.STS.Identity.Helpers
             app.UseReferrerPolicy(options => options.NoReferrer());
         }
 
+        public static void AddEmailSenders(this IServiceCollection services, IConfiguration configuration) 
+        {
+            var sendgridConnectionString = configuration.GetConnectionString(ConfigurationConsts.SendgridConnectionStringKey);
+            var smtpConfiguration = configuration.GetSection(nameof(SmtpConfiguration)).Get<SmtpConfiguration>();
+            var sendgridConfiguration = configuration.GetSection(nameof(SendgridConfiguration)).Get<SendgridConfiguration>();
+
+            if (!string.IsNullOrWhiteSpace(sendgridConnectionString))
+            {
+                services.AddSingleton<ISendGridClient>(_ => new SendGridClient(sendgridConnectionString));
+                services.AddSingleton(sendgridConfiguration);
+                services.AddTransient<IEmailSender, SendgridEmailSender>();
+            }
+            else if (smtpConfiguration != null)
+            {
+                services.AddSingleton(smtpConfiguration);
+                services.AddTransient<IEmailSender, SmtpEmailSender>();
+            } else
+            {
+                services.AddSingleton<IEmailSender, EmailSender>();
+            }
+
+        }
+
         public static void AddAuthenticationServices<TContext, TUserIdentity, TUserIdentityRole>(this IServiceCollection services, IHostingEnvironment hostingEnvironment, IConfiguration configuration, ILogger logger) where TContext : DbContext
             where TUserIdentity : class where TUserIdentityRole : class
         {
@@ -73,7 +97,6 @@ namespace Skoruba.IdentityServer4.STS.Identity.Helpers
                 .AddEntityFrameworkStores<TContext>()
                 .AddDefaultTokenProviders();
 
-            services.AddSingleton<IEmailSender, EmailSender>();
 
             services.Configure<IISOptions>(iis =>
             {

src/Skoruba.IdentityServer4.STS.Identity/Services/SendgridEmailSender.cs

@@ -6,13 +6,13 @@ using System.Threading.Tasks;
 
 namespace Skoruba.IdentityServer4.STS.Identity.Services
 {
-    public class SendGridMailingService : IEmailSender
+    public class SendgridEmailSender : IEmailSender
     {
         private ISendGridClient _client;
         private readonly SendgridConfiguration _configuration;
-        private readonly ILogger<SendGridMailingService> _logger;
+        private readonly ILogger<SendgridEmailSender> _logger;
 
-        public SendGridMailingService(ILogger<SendGridMailingService> logger, ISendGridClient client, SendgridConfiguration configuration)
+        public SendgridEmailSender(ILogger<SendgridEmailSender> logger, ISendGridClient client, SendgridConfiguration configuration)
         {
             _logger = logger;
             _client = client;

src/Skoruba.IdentityServer4.STS.Identity/Startup.cs

@@ -36,6 +36,7 @@ namespace Skoruba.IdentityServer4.STS.Identity
         public void ConfigureServices(IServiceCollection services)
         {
             services.AddDbContexts<AdminDbContext>(Configuration);
+            services.AddEmailSenders(Configuration);
             services.AddAuthenticationServices<AdminDbContext, UserIdentity, UserIdentityRole>(Environment, Configuration, Logger);
             services.AddMvcLocalization();
         }

src/Skoruba.IdentityServer4.STS.Identity/appsettings.json

 {
-    "ConnectionStrings": {
-        "AdminConnection": "Server=(localdb)\\mssqllocaldb;Database=IdentityServer4Admin;Trusted_Connection=True;MultipleActiveResultSets=true"
-    },
-    "Serilog": {
-        "MinimumLevel": "Information",
-        "WriteTo": [
-            {
-                "Name": "File",
-                "Args": {
-                    "path": "Log\\skoruba_admin.txt",
-                    "rollingInterval": "Day"
-                }
-            },
-            {
-                "Name": "MSSqlServer",
-                "Args": {
-                    "connectionString": "Server=(localdb)\\mssqllocaldb;Database=IdentityServer4Admin;Trusted_Connection=True;MultipleActiveResultSets=true",
-                    "tableName": "Log",
-                    "columnOptionsSection": {
-                        "addStandardColumns": [ "LogEvent" ],
-                        "removeStandardColumns": [ "Properties" ]
-                    }
-                }
-            }
-        ]
-    },
-    "CertificateConfiguration": {
+  "ConnectionStrings": {
+    "AdminConnection": "Server=(localdb)\\mssqllocaldb;Database=IdentityServer4Admin;Trusted_Connection=True;MultipleActiveResultSets=true"
+  },
+  "Serilog": {
+    "MinimumLevel": "Information",
+    "WriteTo": [
+      {
+        "Name": "File",
+        "Args": {
+          "path": "Log\\skoruba_admin.txt",
+          "rollingInterval": "Day"
+        }
+      },
+      {
+        "Name": "MSSqlServer",
+        "Args": {
+          "connectionString": "Server=(localdb)\\mssqllocaldb;Database=IdentityServer4Admin;Trusted_Connection=True;MultipleActiveResultSets=true",
+          "tableName": "Log",
+          "columnOptionsSection": {
+            "addStandardColumns": [ "LogEvent" ],
+            "removeStandardColumns": [ "Properties" ]
+          }
+        }
+      }
+    ]
+  },
+  "CertificateConfiguration": {
 
-        "UseTemporarySigningKeyForDevelopment": true,
+    "UseTemporarySigningKeyForDevelopment": true,
 
-        "UseSigningCertificateThumbprint": false,
-        "SigningCertificateThumbprint": "",
+    "UseSigningCertificateThumbprint": false,
+    "SigningCertificateThumbprint": "",
 
-        "UseSigningCertificatePfxFile": false,
-        "SigningCertificatePfxFilePath": "",
-        "SigningCertificatePfxFilePassword": "",
+    "UseSigningCertificatePfxFile": false,
+    "SigningCertificatePfxFilePath": "",
+    "SigningCertificatePfxFilePassword": "",
 
-        "UseValidationCertificatePfxFile": false,
-        "ValidationCertificatePfxFilePath": "",
-        "ValidationCertificatePfxFilePassword": "",
+    "UseValidationCertificatePfxFile": false,
+    "ValidationCertificatePfxFilePath": "",
+    "ValidationCertificatePfxFilePassword": "",
 
-        "UseValidationCertificateThumbprint": false,
-        "ValidationCertificateThumbprint": ""
-    },
-    "ExternalProvidersConfiguration": {
-        "UseGitHubProvider": false,
-        "GitHubClientId": "",
-        "GitHubClientSecret": ""
-    } 
+    "UseValidationCertificateThumbprint": false,
+    "ValidationCertificateThumbprint": ""
+  },
+  "ExternalProvidersConfiguration": {
+    "UseGitHubProvider": false,
+    "GitHubClientId": "",
+    "GitHubClientSecret": ""
+  },
+  "SmtpConfiguration": {
+    "Host": "",
+    "Login": "",
+    "Password": ""
+  }
 }
\ No newline at end of file