generate signin token for enterprise portal (#728)

src/Api/Controllers/AccountsController.cs

@@ -599,5 +599,24 @@ namespace Bit.Api.Controllers
 
             await _userService.ReinstatePremiumAsync(user);
         }
+
+        [HttpGet("enterprise-portal-signin-token")]
+        [Authorize("Web")]
+        public async Task<string> GetEnterprisePortalSignInToken()
+        {
+            var user = await _userService.GetUserByPrincipalAsync(User);
+            if (user == null)
+            {
+                throw new UnauthorizedAccessException();
+            }
+
+            var token = await _userService.GenerateEnterprisePortalSignInTokenAsync(user);
+            if (token == null)
+            {
+                throw new BadRequestException("Cannot generate sign in token.");
+            }
+
+            return token;
+        }
     }
 }

src/Core/Services/IUserService.cs

@@ -63,5 +63,6 @@ namespace Bit.Core.Services
         Task<bool> CanAccessPremium(ITwoFactorProvidersUser user);
         Task<bool> TwoFactorIsEnabledAsync(ITwoFactorProvidersUser user);
         Task<bool> TwoFactorProviderIsEnabledAsync(TwoFactorProviderType provider, ITwoFactorProvidersUser user);
+        Task<string> GenerateEnterprisePortalSignInTokenAsync(User user);
     }
 }

src/Core/Services/Implementations/UserService.cs

@@ -1020,6 +1020,13 @@ namespace Bit.Core.Services
             return await CanAccessPremium(user);
         }
 
+        public async Task<string> GenerateEnterprisePortalSignInTokenAsync(User user)
+        {
+            var token = await GenerateUserTokenAsync(user, Options.Tokens.PasswordResetTokenProvider,
+                "EnterprisePortalTokenSignIn");
+            return token;
+        }
+
         private async Task<IdentityResult> UpdatePasswordHash(User user, string newPassword,
             bool validatePassword = true, bool refreshStamp = true)
         {

src/Core/Utilities/ServiceCollectionExtensions.cs

@@ -393,6 +393,7 @@ namespace Bit.Core.Utilities
         public static void AddCustomDataProtectionServices(
             this IServiceCollection services, IWebHostEnvironment env, GlobalSettings globalSettings)
         {
+            var builder = services.AddDataProtection().SetApplicationName("Bitwarden");
             if (env.IsDevelopment())
             {
                 return;
@@ -400,8 +401,7 @@ namespace Bit.Core.Utilities
 
             if (globalSettings.SelfHosted && CoreHelpers.SettingHasValue(globalSettings.DataProtection.Directory))
             {
-                services.AddDataProtection()
+                builder.PersistKeysToFileSystem(new DirectoryInfo(globalSettings.DataProtection.Directory));
-                    .PersistKeysToFileSystem(new DirectoryInfo(globalSettings.DataProtection.Directory));
             }
 
             if (!globalSettings.SelfHosted && CoreHelpers.SettingHasValue(globalSettings.Storage?.ConnectionString))
@@ -419,7 +419,7 @@ namespace Bit.Core.Utilities
                         "dataprotection.pfx", globalSettings.DataProtection.CertificatePassword)
                         .GetAwaiter().GetResult();
                 }
-                services.AddDataProtection()
+                builder
                     .PersistKeysToAzureBlobStorage(storageAccount, "aspnet-dataprotection/keys.xml")
                     .ProtectKeysWithCertificate(dataProtectionCert);
             }