Updates ReflectionBasedDestructurer to destructure IQueryable values to prevent enumeration.

README.md

@@ -132,7 +132,7 @@ Add the `SqlExceptionDestructurer` during setup:
 
 [![Serilog.Exceptions.EntityFrameworkCore NuGet Package](https://img.shields.io/nuget/v/Serilog.Exceptions.EntityFrameworkCore.svg)](https://www.nuget.org/packages/Serilog.Exceptions.EntityFrameworkCore/) [![Serilog.Exceptions.EntityFrameworkCore package in serilog-exceptions feed in Azure Artifacts](https://feeds.dev.azure.com/serilog-exceptions/_apis/public/Packaging/Feeds/8479813c-da6b-4677-b40d-78df8725dc9c/Packages/ee2cd6f8-4c93-4774-9398-23c49ba41928/Badge)](https://dev.azure.com/serilog-exceptions/Serilog.Exceptions/_packaging?_a=package&feed=8479813c-da6b-4677-b40d-78df8725dc9c&package=ee2cd6f8-4c93-4774-9398-23c49ba41928&preferRelease=true) [![Serilog.Exceptions.EntityFrameworkCore NuGet Package Downloads](https://img.shields.io/nuget/dt/Serilog.Exceptions.EntityFrameworkCore)](https://www.nuget.org/packages/Serilog.Exceptions.EntityFrameworkCore)
 
-> **WARNING**: If you are using EntityFrameworkCore with Serilog.Exceptions you must add this, otherwise in certain cases your entire database will be logged! This is because the exceptions in Entity Framework Core have properties that link to the entire database schema in them (See [#100](https://github.com/RehanSaeed/Serilog.Exceptions/issues/100), [aspnet/EntityFrameworkCore#15214](https://github.com/aspnet/EntityFrameworkCore/issues/15214))
+> **WARNING**: In older versions of Serilog.Exceptions, if you are using EntityFrameworkCore with Serilog.Exceptions you must add this, otherwise in certain cases your entire database will be logged! This is because the exceptions in Entity Framework Core have properties that link to the entire database schema in them (See [#100](https://github.com/RehanSaeed/Serilog.Exceptions/issues/100), [aspnet/EntityFrameworkCore#15214](https://github.com/aspnet/EntityFrameworkCore/issues/15214)). Newer versions of Serilog.Exceptions avoids this issue by preventing the destructure of properties that implement IQueryable preventing their execution.
 
 Add the [Serilog.Exceptions.EntityFrameworkCore](https://www.nuget.org/packages/Serilog.Exceptions.EntityFrameworkCore/) NuGet package to your project when using EntityFrameworkCore in your project
 

Source/Serilog.Exceptions/Destructurers/ReflectionBasedDestructurer.cs

@@ -22,6 +22,7 @@ public class ReflectionBasedDestructurer : IExceptionDestructurer
         private const string IdLabel = "$id";
         private const string RefLabel = "$ref";
         private const string CyclicReferenceMessage = "Cyclic reference";
+        private const string IQueryableDestructureSkippedMessage = "IQueryable skipped";
         private readonly int destructuringDepth;
         private readonly ReflectionInfoExtractor reflectionInfoExtractor = new();
 
@@ -204,7 +205,11 @@ private void AppendProperties(
                 return this.DestructureValueDictionary(dictionary, level, destructuredObjects, ref nextCyclicRefId);
             }
 
-            if (value is IEnumerable enumerable)
+            if (value is IQueryable queryable)
+            {
+                return IQueryableDestructureSkippedMessage;
+            }
+            else if (value is IEnumerable enumerable)
             {
                 return this.DestructureValueEnumerable(enumerable, level, destructuredObjects, ref nextCyclicRefId);
             }

Tests/Serilog.Exceptions.Test/Destructurers/DbUpdateExceptionDestructurerTest.cs

@@ -76,6 +76,8 @@ internal class TestContext : DbContext
 
             public DbSet<User>? Users { get; set; }
 
+            public string CustomData { get; set; } = UserIdIDoNotWantToSee;
+
             protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) => optionsBuilder.UseInMemoryDatabase(databaseName: "TestDebUpdateException");
 
             protected override void OnModelCreating(ModelBuilder modelBuilder)

Tests/Serilog.Exceptions.Test/Destructurers/ExceptionDestructurerTest.cs

@@ -4,6 +4,7 @@ namespace Serilog.Exceptions.Test.Destructurers
     using System.Collections.Generic;
     using System.Globalization;
     using FluentAssertions;
+    using Microsoft.EntityFrameworkCore;
     using Moq;
     using Newtonsoft.Json.Linq;
     using Serilog.Exceptions.Core;
@@ -196,6 +197,34 @@ public void WhenExceptionContainsDictionaryWithNonScalarValue_ShouldNotThrow()
                 .Which.Name.Should().Be("System.Collections.Generic.List`1[System.Int32]");
         }
 
+        [Fact]
+        public void WhenExceptionContainsDbContext_ShouldSkipIQueryableProperties()
+        {
+            // Arrange
+            using var context = new ExceptionDbContext();
+            var exception = new CustomDbContextException("hello world", context);
+
+            // Act
+            var result = LogAndDestructureException(exception, new DestructuringOptionsBuilder());
+
+            // Assert
+            var exceptionDetails = ExtractExceptionDetails(result).Should().BeOfType<JObject>().Which;
+            var nameProperty = exceptionDetails
+                .Properties().Should().ContainSingle(x => x.Name == nameof(CustomDbContextException.Name)).Which
+                .Should().BeOfType<JProperty>().Which;
+
+            nameProperty.Value.Should().BeOfType<JValue>().Which.Value.Should().Be("hello world");
+
+            var contextProperty = exceptionDetails
+                .Properties().Should().ContainSingle(x => x.Name == nameof(CustomDbContextException.Context)).Which;
+
+            var customerProperty = contextProperty.Value.Should().BeOfType<JObject>().Which
+                .Properties().Should().ContainSingle(x => x.Name == nameof(ExceptionDbContext.Customer)).Which;
+
+            customerProperty.Value.Should().BeOfType<JValue>().Which.Value.Should().BeOfType<string>().Which
+                .Should().Be("IQueryable skipped");
+        }
+
         public class DictNonScalarKeyException : Exception
         {
             public DictNonScalarKeyException() => this.Reference = new Dictionary<IEnumerable<int>, object>();
@@ -210,6 +239,35 @@ public DictNonScalarKeyException(string message, Exception innerException)
 
             public Dictionary<IEnumerable<int>, object> Reference { get; }
         }
+
+#pragma warning disable CS3001 // Argument type is not CLS-compliant
+#pragma warning disable CS3003 // Type is not CLS-compliant
+        public class CustomDbContextException : Exception
+        {
+            public CustomDbContextException(string name, DbContext context)
+            {
+                this.Name = name;
+                this.Context = context;
+            }
+
+            public string Name { get; set; }
+
+            public DbContext Context { get; }
+        }
+
+        private class ExceptionDbContext : DbContext
+        {
+            public DbSet<CustomerEntity> Customer => this.Set<CustomerEntity>();
+
+            protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) => optionsBuilder.UseInMemoryDatabase(databaseName: "TestDebUpdateException");
+
+            public class CustomerEntity
+            {
+                public string? Name { get; set; }
+
+                public int Id { get; set; }
+            }
+        }
     }
 }
 #pragma warning restore CA2208 // Instantiate argument exceptions correctly