feat(backend): Implement Story 5.4 - MCP Error Handling & Logging
Implement comprehensive error handling and structured logging for MCP module. **Exception Hierarchy**: - Created McpException base class with JSON-RPC error mapping - Implemented 8 specific exception types (Parse, InvalidRequest, MethodNotFound, etc.) - Each exception maps to correct HTTP status code (401, 403, 404, 422, 400, 500) **Middleware**: - McpCorrelationIdMiddleware: Generates/extracts correlation ID for request tracking - McpExceptionHandlerMiddleware: Global exception handler with JSON-RPC error responses - McpLoggingMiddleware: Request/response logging with sensitive data sanitization **Serilog Integration**: - Configured structured logging with Console and File sinks - Log rotation (daily, 30-day retention) - Correlation ID enrichment in all log entries **Features**: - Correlation ID propagation across request chain - Structured logging with TenantId, UserId, ApiKeyId - Sensitive data sanitization (API keys, passwords) - Performance metrics (request duration, slow request warnings) - JSON-RPC 2.0 compliant error responses **Testing**: - 174 tests passing (all MCP module tests) - Unit tests for all exception classes - Unit tests for all middleware components - 100% coverage of error mapping and HTTP status codes **Files Added**: - 9 exception classes in Domain/Exceptions/ - 3 middleware classes in Infrastructure/Middleware/ - 4 test files with comprehensive coverage **Files Modified**: - Program.cs: Serilog configuration - McpServiceExtensions.cs: Middleware pipeline registration - JsonRpcError.cs: Added parameterless constructor for deserialization - MCP Infrastructure .csproj: Added Serilog package reference **Verification**: ✅ All 174 MCP module tests passing ✅ Build successful with no errors ✅ Exception-to-HTTP-status mapping verified ✅ Correlation ID propagation tested ✅ Sensitive data sanitization verified Story: docs/stories/sprint_5/story_5_4.md 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
Yaojia Wang
@@ -10,6 +10,7 @@
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<ItemGroup>
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<PackageReference Include="coverlet.collector" Version="6.0.2" />
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<PackageReference Include="FluentAssertions" Version="8.8.0" />
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<PackageReference Include="Microsoft.AspNetCore.Http" Version="2.2.2" />
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<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
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<PackageReference Include="NSubstitute" Version="5.3.0" />
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<PackageReference Include="xunit" Version="2.9.2" />
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@@ -21,6 +22,7 @@
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="..\..\..\..\src\Modules\Mcp\ColaFlow.Modules.Mcp.Domain\ColaFlow.Modules.Mcp.Domain.csproj" />
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<ProjectReference Include="..\..\..\..\src\Modules\Mcp\ColaFlow.Modules.Mcp.Application\ColaFlow.Modules.Mcp.Application.csproj" />
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<ProjectReference Include="..\..\..\..\src\Modules\Mcp\ColaFlow.Modules.Mcp.Infrastructure\ColaFlow.Modules.Mcp.Infrastructure.csproj" />
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</ItemGroup>
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@@ -0,0 +1,158 @@
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using ColaFlow.Modules.Mcp.Contracts.JsonRpc;
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using ColaFlow.Modules.Mcp.Domain.Exceptions;
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using FluentAssertions;
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namespace ColaFlow.Modules.Mcp.Tests.Domain.Exceptions;
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/// <summary>
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/// Unit tests for MCP exception classes
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/// </summary>
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public class McpExceptionTests
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{
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[Fact]
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public void McpParseException_ShouldHaveCorrectErrorCode()
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{
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// Arrange & Act
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var exception = new McpParseException("Invalid JSON");
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// Assert
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exception.ErrorCode.Should().Be(JsonRpcErrorCode.ParseError);
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exception.Message.Should().Be("Invalid JSON");
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exception.GetHttpStatusCode().Should().Be(400);
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}
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[Fact]
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public void McpInvalidRequestException_ShouldHaveCorrectErrorCode()
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{
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// Arrange & Act
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var exception = new McpInvalidRequestException("Missing required field");
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// Assert
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exception.ErrorCode.Should().Be(JsonRpcErrorCode.InvalidRequest);
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exception.Message.Should().Be("Missing required field");
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exception.GetHttpStatusCode().Should().Be(400);
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}
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[Fact]
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public void McpMethodNotFoundException_ShouldHaveCorrectErrorCode()
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{
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// Arrange & Act
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var exception = new McpMethodNotFoundException("unknown_method");
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// Assert
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exception.ErrorCode.Should().Be(JsonRpcErrorCode.MethodNotFound);
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exception.Message.Should().Be("Method not found: unknown_method");
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exception.GetHttpStatusCode().Should().Be(404);
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}
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[Fact]
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public void McpInvalidParamsException_ShouldHaveCorrectErrorCode()
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{
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// Arrange & Act
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var exception = new McpInvalidParamsException("Invalid parameter type");
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// Assert
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exception.ErrorCode.Should().Be(JsonRpcErrorCode.InvalidParams);
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exception.Message.Should().Be("Invalid parameter type");
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exception.GetHttpStatusCode().Should().Be(400);
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}
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[Fact]
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public void McpUnauthorizedException_ShouldHaveCorrectErrorCode()
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{
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// Arrange & Act
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var exception = new McpUnauthorizedException("Invalid API key");
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// Assert
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exception.ErrorCode.Should().Be(JsonRpcErrorCode.Unauthorized);
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exception.Message.Should().Be("Invalid API key");
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exception.GetHttpStatusCode().Should().Be(401);
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}
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[Fact]
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public void McpForbiddenException_ShouldHaveCorrectErrorCode()
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{
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// Arrange & Act
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var exception = new McpForbiddenException("Insufficient permissions");
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// Assert
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exception.ErrorCode.Should().Be(JsonRpcErrorCode.Forbidden);
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exception.Message.Should().Be("Insufficient permissions");
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exception.GetHttpStatusCode().Should().Be(403);
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}
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[Fact]
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public void McpNotFoundException_ShouldHaveCorrectErrorCode()
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{
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// Arrange & Act
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var exception = new McpNotFoundException("Task", "task-123");
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// Assert
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exception.ErrorCode.Should().Be(JsonRpcErrorCode.NotFound);
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exception.Message.Should().Be("Task not found: task-123");
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exception.GetHttpStatusCode().Should().Be(404);
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}
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[Fact]
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public void McpValidationException_ShouldHaveCorrectErrorCode()
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{
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// Arrange & Act
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var errorData = new { field = "name", error = "required" };
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var exception = new McpValidationException("Validation failed", errorData);
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// Assert
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exception.ErrorCode.Should().Be(JsonRpcErrorCode.ValidationFailed);
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exception.Message.Should().Be("Validation failed");
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exception.ErrorData.Should().Be(errorData);
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exception.GetHttpStatusCode().Should().Be(422);
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}
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[Fact]
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public void ToJsonRpcError_ShouldConvertToJsonRpcError()
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{
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// Arrange
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var errorData = new { detail = "test" };
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var exception = new McpValidationException("Test error", errorData);
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// Act
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var jsonRpcError = exception.ToJsonRpcError();
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// Assert
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jsonRpcError.Code.Should().Be((int)JsonRpcErrorCode.ValidationFailed);
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jsonRpcError.Message.Should().Be("Test error");
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jsonRpcError.Data.Should().Be(errorData);
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}
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[Fact]
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public void McpParseException_WithInnerException_ShouldPreserveInnerException()
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{
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// Arrange
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var innerException = new InvalidOperationException("Root cause");
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// Act
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var exception = new McpParseException("Parse failed", innerException);
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// Assert
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exception.InnerException.Should().Be(innerException);
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exception.InnerException.Message.Should().Be("Root cause");
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}
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[Fact]
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public void McpException_WithErrorData_ShouldPreserveErrorData()
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{
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// Arrange
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var errorData = new
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{
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field = "email",
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error = "invalid format",
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value = "not-an-email"
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};
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// Act
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var exception = new McpValidationException("Validation failed", errorData);
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// Assert
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exception.ErrorData.Should().NotBeNull();
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exception.ErrorData.Should().Be(errorData);
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}
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}
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@@ -0,0 +1,129 @@
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using ColaFlow.Modules.Mcp.Infrastructure.Middleware;
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using FluentAssertions;
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using Microsoft.AspNetCore.Http;
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using NSubstitute;
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namespace ColaFlow.Modules.Mcp.Tests.Infrastructure.Middleware;
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/// <summary>
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/// Unit tests for McpCorrelationIdMiddleware
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/// </summary>
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public class McpCorrelationIdMiddlewareTests
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{
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[Fact]
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public async Task InvokeAsync_ShouldGenerateCorrelationId_WhenNotProvidedInRequest()
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{
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// Arrange
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var context = new DefaultHttpContext();
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var nextCalled = false;
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RequestDelegate next = (HttpContext ctx) =>
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{
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nextCalled = true;
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return Task.CompletedTask;
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};
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var middleware = new McpCorrelationIdMiddleware(next);
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// Act
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await middleware.InvokeAsync(context);
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// Assert
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nextCalled.Should().BeTrue();
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context.Items.Should().ContainKey("CorrelationId");
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context.Items["CorrelationId"].Should().NotBeNull();
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context.Items["CorrelationId"].Should().BeOfType<string>();
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var correlationId = context.Items["CorrelationId"] as string;
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correlationId.Should().NotBeNullOrWhiteSpace();
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// Should be a valid GUID without hyphens (format "N")
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Guid.TryParse(correlationId, out _).Should().BeTrue();
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}
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[Fact]
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public async Task InvokeAsync_ShouldUseProvidedCorrelationId_WhenPresentInRequestHeader()
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{
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// Arrange
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var expectedCorrelationId = Guid.NewGuid().ToString("N");
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var context = new DefaultHttpContext();
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context.Request.Headers["X-Correlation-Id"] = expectedCorrelationId;
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RequestDelegate next = (HttpContext ctx) => Task.CompletedTask;
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var middleware = new McpCorrelationIdMiddleware(next);
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// Act
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await middleware.InvokeAsync(context);
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// Assert
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context.Items["CorrelationId"].Should().Be(expectedCorrelationId);
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}
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[Fact]
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public async Task InvokeAsync_ShouldAddCorrelationIdToResponseHeader()
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{
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// Arrange
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var context = new DefaultHttpContext();
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context.Response.Body = new MemoryStream(); // Required for response headers
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RequestDelegate next = (HttpContext ctx) =>
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{
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// Trigger response to start (which adds headers)
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ctx.Response.StatusCode = 200;
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return Task.CompletedTask;
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};
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var middleware = new McpCorrelationIdMiddleware(next);
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// Act
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await middleware.InvokeAsync(context);
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// Assert - Note: Headers are added via OnStarting callback, which executes when response starts
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// In this test, we can verify the correlation ID was stored in context items
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context.Items.Should().ContainKey("CorrelationId");
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}
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[Fact]
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public async Task InvokeAsync_ShouldCallNextMiddleware()
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{
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// Arrange
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var context = new DefaultHttpContext();
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var nextCalled = false;
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RequestDelegate next = (HttpContext ctx) =>
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{
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nextCalled = true;
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return Task.CompletedTask;
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};
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var middleware = new McpCorrelationIdMiddleware(next);
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// Act
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await middleware.InvokeAsync(context);
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// Assert
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nextCalled.Should().BeTrue();
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}
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[Fact]
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public async Task InvokeAsync_ShouldGenerateUniqueCorrelationIds()
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{
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// Arrange
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var context1 = new DefaultHttpContext();
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var context2 = new DefaultHttpContext();
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RequestDelegate next = (HttpContext ctx) => Task.CompletedTask;
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var middleware = new McpCorrelationIdMiddleware(next);
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// Act
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await middleware.InvokeAsync(context1);
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await middleware.InvokeAsync(context2);
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// Assert
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var correlationId1 = context1.Items["CorrelationId"] as string;
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var correlationId2 = context2.Items["CorrelationId"] as string;
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correlationId1.Should().NotBeNullOrWhiteSpace();
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correlationId2.Should().NotBeNullOrWhiteSpace();
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correlationId1.Should().NotBe(correlationId2);
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}
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}
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@@ -0,0 +1,196 @@
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using ColaFlow.Modules.Mcp.Contracts.JsonRpc;
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using ColaFlow.Modules.Mcp.Domain.Exceptions;
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using ColaFlow.Modules.Mcp.Infrastructure.Middleware;
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using FluentAssertions;
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using Microsoft.AspNetCore.Http;
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using Microsoft.Extensions.Logging;
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using NSubstitute;
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using System.Text.Json;
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namespace ColaFlow.Modules.Mcp.Tests.Infrastructure.Middleware;
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/// <summary>
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/// Unit tests for McpExceptionHandlerMiddleware
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/// </summary>
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public class McpExceptionHandlerMiddlewareTests
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{
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private readonly ILogger<McpExceptionHandlerMiddleware> _logger;
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public McpExceptionHandlerMiddlewareTests()
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{
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_logger = Substitute.For<ILogger<McpExceptionHandlerMiddleware>>();
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}
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[Fact]
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public async Task InvokeAsync_ShouldCallNextMiddleware_WhenNoExceptionThrown()
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{
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// Arrange
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var context = new DefaultHttpContext();
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var nextCalled = false;
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RequestDelegate next = (HttpContext ctx) =>
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{
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nextCalled = true;
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return Task.CompletedTask;
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};
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var middleware = new McpExceptionHandlerMiddleware(next, _logger);
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// Act
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await middleware.InvokeAsync(context);
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// Assert
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nextCalled.Should().BeTrue();
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}
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[Fact]
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public async Task InvokeAsync_ShouldHandleMcpException_AndReturnJsonRpcErrorResponse()
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{
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// Arrange
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var context = new DefaultHttpContext();
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context.Response.Body = new MemoryStream();
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context.Items["CorrelationId"] = "test-correlation-id";
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context.Items["McpRequestId"] = "test-request-id";
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var expectedException = new McpNotFoundException("Task", "task-123");
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RequestDelegate next = (HttpContext ctx) =>
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{
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throw expectedException;
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};
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var middleware = new McpExceptionHandlerMiddleware(next, _logger);
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// Act
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await middleware.InvokeAsync(context);
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// Assert
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context.Response.StatusCode.Should().Be(404);
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context.Response.ContentType.Should().Be("application/json");
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context.Response.Body.Seek(0, SeekOrigin.Begin);
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var responseBody = await new StreamReader(context.Response.Body).ReadToEndAsync();
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var response = JsonSerializer.Deserialize<JsonRpcResponse>(responseBody, new JsonSerializerOptions
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{
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PropertyNameCaseInsensitive = true
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});
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response.Should().NotBeNull();
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response!.JsonRpc.Should().Be("2.0");
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response.Error.Should().NotBeNull();
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response.Error!.Code.Should().Be((int)JsonRpcErrorCode.NotFound);
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response.Error.Message.Should().Be("Task not found: task-123");
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response.Id.Should().NotBeNull();
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response.Id!.ToString().Should().Be("test-request-id");
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}
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[Fact]
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public async Task InvokeAsync_ShouldHandleUnexpectedException_AndReturnInternalError()
|
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{
|
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// Arrange
|
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var context = new DefaultHttpContext();
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context.Response.Body = new MemoryStream();
|
||||
context.Items["CorrelationId"] = "test-correlation-id";
|
||||
|
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RequestDelegate next = (HttpContext ctx) =>
|
||||
{
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throw new InvalidOperationException("Unexpected error");
|
||||
};
|
||||
|
||||
var middleware = new McpExceptionHandlerMiddleware(next, _logger);
|
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|
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// Act
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await middleware.InvokeAsync(context);
|
||||
|
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// Assert
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context.Response.StatusCode.Should().Be(500);
|
||||
context.Response.ContentType.Should().Be("application/json");
|
||||
|
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context.Response.Body.Seek(0, SeekOrigin.Begin);
|
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var responseBody = await new StreamReader(context.Response.Body).ReadToEndAsync();
|
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var response = JsonSerializer.Deserialize<JsonRpcResponse>(responseBody, new JsonSerializerOptions
|
||||
{
|
||||
PropertyNameCaseInsensitive = true
|
||||
});
|
||||
|
||||
response.Should().NotBeNull();
|
||||
response!.Error.Should().NotBeNull();
|
||||
response.Error!.Code.Should().Be((int)JsonRpcErrorCode.InternalError);
|
||||
response.Error.Message.Should().Be("Internal server error");
|
||||
// Should NOT expose exception details
|
||||
response.Error.Data.Should().BeNull();
|
||||
}
|
||||
|
||||
[Theory]
|
||||
[InlineData(typeof(McpUnauthorizedException), 401)]
|
||||
[InlineData(typeof(McpForbiddenException), 403)]
|
||||
[InlineData(typeof(McpNotFoundException), 404)]
|
||||
[InlineData(typeof(McpValidationException), 422)]
|
||||
[InlineData(typeof(McpParseException), 400)]
|
||||
[InlineData(typeof(McpInvalidRequestException), 400)]
|
||||
[InlineData(typeof(McpMethodNotFoundException), 404)]
|
||||
[InlineData(typeof(McpInvalidParamsException), 400)]
|
||||
public async Task InvokeAsync_ShouldMapExceptionToCorrectHttpStatusCode(Type exceptionType, int expectedStatusCode)
|
||||
{
|
||||
// Arrange
|
||||
var context = new DefaultHttpContext();
|
||||
context.Response.Body = new MemoryStream();
|
||||
|
||||
McpException exception = exceptionType.Name switch
|
||||
{
|
||||
nameof(McpUnauthorizedException) => new McpUnauthorizedException(),
|
||||
nameof(McpForbiddenException) => new McpForbiddenException(),
|
||||
nameof(McpNotFoundException) => new McpNotFoundException("Resource", "123"),
|
||||
nameof(McpValidationException) => new McpValidationException(),
|
||||
nameof(McpParseException) => new McpParseException(),
|
||||
nameof(McpInvalidRequestException) => new McpInvalidRequestException(),
|
||||
nameof(McpMethodNotFoundException) => new McpMethodNotFoundException("test"),
|
||||
nameof(McpInvalidParamsException) => new McpInvalidParamsException(),
|
||||
_ => throw new ArgumentException("Unknown exception type")
|
||||
};
|
||||
|
||||
RequestDelegate next = (HttpContext ctx) =>
|
||||
{
|
||||
throw exception;
|
||||
};
|
||||
|
||||
var middleware = new McpExceptionHandlerMiddleware(next, _logger);
|
||||
|
||||
// Act
|
||||
await middleware.InvokeAsync(context);
|
||||
|
||||
// Assert
|
||||
context.Response.StatusCode.Should().Be(expectedStatusCode);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public async Task InvokeAsync_ShouldLogErrorWithStructuredData()
|
||||
{
|
||||
// Arrange
|
||||
var context = new DefaultHttpContext();
|
||||
context.Response.Body = new MemoryStream();
|
||||
context.Items["CorrelationId"] = "test-correlation-id";
|
||||
context.Items["TenantId"] = "tenant-123";
|
||||
context.Items["ApiKeyId"] = "key-456";
|
||||
|
||||
var exception = new McpValidationException("Test validation error");
|
||||
|
||||
RequestDelegate next = (HttpContext ctx) =>
|
||||
{
|
||||
throw exception;
|
||||
};
|
||||
|
||||
var middleware = new McpExceptionHandlerMiddleware(next, _logger);
|
||||
|
||||
// Act
|
||||
await middleware.InvokeAsync(context);
|
||||
|
||||
// Assert
|
||||
_logger.Received(1).Log(
|
||||
LogLevel.Error,
|
||||
Arg.Any<EventId>(),
|
||||
Arg.Is<object>(o => o.ToString()!.Contains("MCP Error")),
|
||||
exception,
|
||||
Arg.Any<Func<object, Exception?, string>>());
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,241 @@
|
||||
using ColaFlow.Modules.Mcp.Infrastructure.Middleware;
|
||||
using FluentAssertions;
|
||||
using Microsoft.AspNetCore.Http;
|
||||
using Microsoft.Extensions.Logging;
|
||||
using NSubstitute;
|
||||
using System.Text;
|
||||
|
||||
namespace ColaFlow.Modules.Mcp.Tests.Infrastructure.Middleware;
|
||||
|
||||
/// <summary>
|
||||
/// Unit tests for McpLoggingMiddleware
|
||||
/// </summary>
|
||||
public class McpLoggingMiddlewareTests
|
||||
{
|
||||
private readonly ILogger<McpLoggingMiddleware> _logger;
|
||||
|
||||
public McpLoggingMiddlewareTests()
|
||||
{
|
||||
_logger = Substitute.For<ILogger<McpLoggingMiddleware>>();
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public async Task InvokeAsync_ShouldSkipLogging_ForNonMcpRequests()
|
||||
{
|
||||
// Arrange
|
||||
var context = new DefaultHttpContext();
|
||||
context.Request.Method = "GET";
|
||||
context.Request.Path = "/api/tasks";
|
||||
|
||||
var nextCalled = false;
|
||||
RequestDelegate next = (HttpContext ctx) =>
|
||||
{
|
||||
nextCalled = true;
|
||||
return Task.CompletedTask;
|
||||
};
|
||||
|
||||
var middleware = new McpLoggingMiddleware(next, _logger);
|
||||
|
||||
// Act
|
||||
await middleware.InvokeAsync(context);
|
||||
|
||||
// Assert
|
||||
nextCalled.Should().BeTrue();
|
||||
// Logger should not be called for non-MCP requests
|
||||
_logger.DidNotReceive().Log(
|
||||
Arg.Any<LogLevel>(),
|
||||
Arg.Any<EventId>(),
|
||||
Arg.Any<object>(),
|
||||
Arg.Any<Exception>(),
|
||||
Arg.Any<Func<object, Exception?, string>>());
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public async Task InvokeAsync_ShouldLogRequestAndResponse_ForMcpRequests()
|
||||
{
|
||||
// Arrange
|
||||
var context = new DefaultHttpContext();
|
||||
context.Request.Method = "POST";
|
||||
context.Request.Path = "/mcp";
|
||||
context.Request.Body = new MemoryStream(Encoding.UTF8.GetBytes("{\"jsonrpc\":\"2.0\",\"method\":\"initialize\"}"));
|
||||
context.Response.Body = new MemoryStream();
|
||||
context.Items["CorrelationId"] = "test-correlation-id";
|
||||
|
||||
RequestDelegate next = (HttpContext ctx) =>
|
||||
{
|
||||
ctx.Response.StatusCode = 200;
|
||||
var responseBytes = Encoding.UTF8.GetBytes("{\"jsonrpc\":\"2.0\",\"result\":{}}");
|
||||
ctx.Response.Body.Write(responseBytes, 0, responseBytes.Length);
|
||||
return Task.CompletedTask;
|
||||
};
|
||||
|
||||
var middleware = new McpLoggingMiddleware(next, _logger);
|
||||
|
||||
// Act
|
||||
await middleware.InvokeAsync(context);
|
||||
|
||||
// Assert
|
||||
// Should log request (Debug level)
|
||||
_logger.Received().Log(
|
||||
LogLevel.Debug,
|
||||
Arg.Any<EventId>(),
|
||||
Arg.Is<object>(o => o.ToString()!.Contains("MCP Request")),
|
||||
Arg.Any<Exception>(),
|
||||
Arg.Any<Func<object, Exception?, string>>());
|
||||
|
||||
// Should log response (Debug level for 2xx status)
|
||||
_logger.Received().Log(
|
||||
LogLevel.Debug,
|
||||
Arg.Any<EventId>(),
|
||||
Arg.Is<object>(o => o.ToString()!.Contains("MCP Response")),
|
||||
Arg.Any<Exception>(),
|
||||
Arg.Any<Func<object, Exception?, string>>());
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public async Task InvokeAsync_ShouldLogErrorLevel_ForErrorResponses()
|
||||
{
|
||||
// Arrange
|
||||
var context = new DefaultHttpContext();
|
||||
context.Request.Method = "POST";
|
||||
context.Request.Path = "/mcp";
|
||||
context.Request.Body = new MemoryStream(Encoding.UTF8.GetBytes("{}"));
|
||||
context.Response.Body = new MemoryStream();
|
||||
context.Items["CorrelationId"] = "test-correlation-id";
|
||||
|
||||
RequestDelegate next = (HttpContext ctx) =>
|
||||
{
|
||||
ctx.Response.StatusCode = 500; // Error status
|
||||
return Task.CompletedTask;
|
||||
};
|
||||
|
||||
var middleware = new McpLoggingMiddleware(next, _logger);
|
||||
|
||||
// Act
|
||||
await middleware.InvokeAsync(context);
|
||||
|
||||
// Assert
|
||||
// Should log response at Error level for 5xx status
|
||||
_logger.Received().Log(
|
||||
LogLevel.Error,
|
||||
Arg.Any<EventId>(),
|
||||
Arg.Is<object>(o => o.ToString()!.Contains("MCP Response")),
|
||||
Arg.Any<Exception>(),
|
||||
Arg.Any<Func<object, Exception?, string>>());
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public async Task InvokeAsync_ShouldLogWarning_ForSlowRequests()
|
||||
{
|
||||
// Arrange
|
||||
var context = new DefaultHttpContext();
|
||||
context.Request.Method = "POST";
|
||||
context.Request.Path = "/mcp";
|
||||
context.Request.Body = new MemoryStream(Encoding.UTF8.GetBytes("{}"));
|
||||
context.Response.Body = new MemoryStream();
|
||||
context.Items["CorrelationId"] = "test-correlation-id";
|
||||
|
||||
RequestDelegate next = async (HttpContext ctx) =>
|
||||
{
|
||||
// Simulate slow request (> 1 second)
|
||||
await Task.Delay(1100);
|
||||
ctx.Response.StatusCode = 200;
|
||||
};
|
||||
|
||||
var middleware = new McpLoggingMiddleware(next, _logger);
|
||||
|
||||
// Act
|
||||
await middleware.InvokeAsync(context);
|
||||
|
||||
// Assert
|
||||
// Should log warning for slow requests
|
||||
_logger.Received().Log(
|
||||
LogLevel.Warning,
|
||||
Arg.Any<EventId>(),
|
||||
Arg.Is<object>(o => o.ToString()!.Contains("Slow MCP Request")),
|
||||
Arg.Any<Exception>(),
|
||||
Arg.Any<Func<object, Exception?, string>>());
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public async Task InvokeAsync_ShouldSanitizeSensitiveData()
|
||||
{
|
||||
// Arrange
|
||||
var requestBody = "{\"keyHash\":\"secret-key-hash\",\"password\":\"my-password\"}";
|
||||
var context = new DefaultHttpContext();
|
||||
context.Request.Method = "POST";
|
||||
context.Request.Path = "/mcp";
|
||||
context.Request.Body = new MemoryStream(Encoding.UTF8.GetBytes(requestBody));
|
||||
context.Response.Body = new MemoryStream();
|
||||
context.Items["CorrelationId"] = "test-correlation-id";
|
||||
|
||||
var loggedRequest = string.Empty;
|
||||
_logger.When(x => x.Log(
|
||||
LogLevel.Debug,
|
||||
Arg.Any<EventId>(),
|
||||
Arg.Is<object>(o => o.ToString()!.Contains("MCP Request")),
|
||||
Arg.Any<Exception>(),
|
||||
Arg.Any<Func<object, Exception?, string>>()))
|
||||
.Do(callInfo =>
|
||||
{
|
||||
var state = callInfo.ArgAt<object>(2);
|
||||
loggedRequest = state.ToString() ?? "";
|
||||
});
|
||||
|
||||
RequestDelegate next = (HttpContext ctx) =>
|
||||
{
|
||||
ctx.Response.StatusCode = 200;
|
||||
return Task.CompletedTask;
|
||||
};
|
||||
|
||||
var middleware = new McpLoggingMiddleware(next, _logger);
|
||||
|
||||
// Act
|
||||
await middleware.InvokeAsync(context);
|
||||
|
||||
// Assert
|
||||
loggedRequest.Should().Contain("[REDACTED]");
|
||||
loggedRequest.Should().NotContain("secret-key-hash");
|
||||
loggedRequest.Should().NotContain("my-password");
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public async Task InvokeAsync_ShouldIncludePerformanceMetrics()
|
||||
{
|
||||
// Arrange
|
||||
var context = new DefaultHttpContext();
|
||||
context.Request.Method = "POST";
|
||||
context.Request.Path = "/mcp";
|
||||
context.Request.Body = new MemoryStream(Encoding.UTF8.GetBytes("{}"));
|
||||
context.Response.Body = new MemoryStream();
|
||||
context.Items["CorrelationId"] = "test-correlation-id";
|
||||
|
||||
var loggedResponse = string.Empty;
|
||||
_logger.When(x => x.Log(
|
||||
LogLevel.Debug,
|
||||
Arg.Any<EventId>(),
|
||||
Arg.Is<object>(o => o.ToString()!.Contains("MCP Response")),
|
||||
Arg.Any<Exception>(),
|
||||
Arg.Any<Func<object, Exception?, string>>()))
|
||||
.Do(callInfo =>
|
||||
{
|
||||
var state = callInfo.ArgAt<object>(2);
|
||||
loggedResponse = state.ToString() ?? "";
|
||||
});
|
||||
|
||||
RequestDelegate next = (HttpContext ctx) =>
|
||||
{
|
||||
ctx.Response.StatusCode = 200;
|
||||
return Task.CompletedTask;
|
||||
};
|
||||
|
||||
var middleware = new McpLoggingMiddleware(next, _logger);
|
||||
|
||||
// Act
|
||||
await middleware.InvokeAsync(context);
|
||||
|
||||
// Assert
|
||||
loggedResponse.Should().Contain("Duration:");
|
||||
loggedResponse.Should().MatchRegex(@"Duration:\s*\d+ms");
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user