fix: use tenant-agnostic application lookup for api keys

src/modules/Elsa.Identity/Extensions/ApplicationProviderExtensions.cs

@@ -15,15 +15,17 @@ public static class ApplicationProviderExtensions
     /// </summary>
     /// <param name="applicationProvider">The user provider.</param>
     /// <param name="clientId">The client ID to search by.</param>
+    /// <param name="tenantAgnostic">Whether to bypass tenant scoping when resolving the application.</param>
     /// <param name="cancellationToken">The cancellation token.</param>
     /// <returns>The application with the specified client ID.</returns>
-    public static async Task<Application?> FindByClientIdAsync(this IApplicationProvider applicationProvider, string clientId, CancellationToken cancellationToken = default)
+    public static async Task<Application?> FindByClientIdAsync(this IApplicationProvider applicationProvider, string clientId, bool tenantAgnostic = false, CancellationToken cancellationToken = default)
     {
         var filter = new ApplicationFilter
         {
-            ClientId = clientId
+            ClientId = clientId,
+            TenantAgnostic = tenantAgnostic
         };
         
         return await applicationProvider.FindAsync(filter, cancellationToken);
     }
-}
+}

src/modules/Elsa.Identity/Models/ApplicationFilter.cs

@@ -21,6 +21,11 @@ public class ApplicationFilter
     /// Gets or sets the application name to filter for.
     /// </summary>
     public string? Name { get; set; }
+
+    /// <summary>
+    /// Gets or sets a value indicating whether to ignore tenant scoping when querying the application store.
+    /// </summary>
+    public bool TenantAgnostic { get; set; }
     
     /// <summary>
     /// Applies the filter to the specified queryable.
@@ -36,4 +41,4 @@ public class ApplicationFilter
 
         return queryable;
     }
-}
+}

src/modules/Elsa.Identity/Services/DefaultApplicationCredentialsValidator.cs

@@ -50,7 +50,7 @@ public class DefaultApplicationCredentialsValidator : IApplicationCredentialsVal
             return null;
         
         var clientId = _apiKeyParser.Parse(apiKey);
-        var application = await _applicationProvider.FindByClientIdAsync(clientId, cancellationToken);
+        var application = await _applicationProvider.FindByClientIdAsync(clientId, tenantAgnostic: true, cancellationToken);
         
         if(application == null)
             return null;

src/modules/Elsa.Persistence.EFCore/Modules/Identity/ApplicationStore.cs

@@ -34,8 +34,8 @@ public class EFCoreApplicationStore : IApplicationStore
     /// <inheritdoc />
     public async Task<Application?> FindAsync(ApplicationFilter filter, CancellationToken cancellationToken = default)
     {
-        return await _applicationStore.FindAsync(query => Filter(query, filter), cancellationToken);
+        return await _applicationStore.FindAsync(query => Filter(query, filter), filter.TenantAgnostic, cancellationToken);
     }
     
     private static IQueryable<Application> Filter(IQueryable<Application> query, ApplicationFilter filter) => filter.Apply(query);
-}
+}

test/unit/Elsa.Identity.UnitTests/Services/DefaultSecretHasherTests.cs

@@ -265,6 +265,34 @@ public class DefaultSecretHasherTests
         Assert.Equal(encodedLegacyHash, application.HashedApiKey);
     }
 
+    [Fact]
+    public async Task ValidateAsync_UsesTenantAgnosticLookupForApplications()
+    {
+        var apiKeyGenerator = new DefaultApiKeyGeneratorAndParser();
+        var apiKey = apiKeyGenerator.Generate("client-1");
+        var hasher = new DefaultSecretHasher();
+        var hashedApiKey = hasher.HashSecret(apiKey);
+        var application = new Application
+        {
+            Id = "app-1",
+            ClientId = "client-1",
+            Name = "Client 1",
+            HashedApiKey = hashedApiKey.EncodeSecret(),
+            HashedApiKeySalt = hashedApiKey.EncodeSalt(),
+            HashedClientSecret = "",
+            HashedClientSecretSalt = ""
+        };
+        var applicationProvider = new RecordingApplicationProvider(application);
+        var validator = new DefaultApplicationCredentialsValidator(apiKeyGenerator, applicationProvider, hasher);
+
+        var validatedApplication = await validator.ValidateAsync(apiKey);
+
+        Assert.Same(application, validatedApplication);
+        Assert.NotNull(applicationProvider.LastFilter);
+        Assert.True(applicationProvider.LastFilter!.TenantAgnostic);
+        Assert.Equal("client-1", applicationProvider.LastFilter.ClientId);
+    }
+
     private static HashedSecret CreateLegacyHash(string secret)
     {
         var salt = RandomNumberGenerator.GetBytes(32);
@@ -370,6 +398,19 @@ public class DefaultSecretHasherTests
         }
     }
 
+    private sealed class RecordingApplicationProvider(Application application) : IApplicationProvider
+    {
+        private readonly Application _application = application;
+        public ApplicationFilter? LastFilter { get; private set; }
+
+        public Task<Application?> FindAsync(ApplicationFilter filter, CancellationToken cancellationToken = default)
+        {
+            LastFilter = filter;
+            var application = filter.Apply(new[] { _application }.AsQueryable()).FirstOrDefault();
+            return Task.FromResult(application);
+        }
+    }
+
     private sealed class CultureScope : IDisposable
     {
         private readonly CultureInfo _currentCulture = CultureInfo.CurrentCulture;