New: Lidarr to Readarr

src/Readarr.Http/ErrorManagement/ErrorHandler.cs

@@ -0,0 +1,41 @@
+using Nancy;
+using Nancy.ErrorHandling;
+using Readarr.Http.Extensions;
+
+namespace Readarr.Http.ErrorManagement
+{
+    public class ErrorHandler : IStatusCodeHandler
+    {
+        public bool HandlesStatusCode(HttpStatusCode statusCode, NancyContext context)
+        {
+            return true;
+        }
+
+        public void Handle(HttpStatusCode statusCode, NancyContext context)
+        {
+            if (statusCode == HttpStatusCode.SeeOther || statusCode == HttpStatusCode.OK)
+            {
+                return;
+            }
+
+            if (statusCode == HttpStatusCode.Continue)
+            {
+                context.Response = new Response { StatusCode = statusCode };
+                return;
+            }
+
+            if (statusCode == HttpStatusCode.Unauthorized)
+            {
+                return;
+            }
+
+            if (context.Response.ContentType == "text/html" || context.Response.ContentType == "text/plain")
+            {
+                context.Response = new ErrorModel
+                {
+                    Message = statusCode.ToString()
+                }.AsResponse(context, statusCode);
+            }
+        }
+    }
+}

src/Readarr.Http/ErrorManagement/ErrorModel.cs

@@ -0,0 +1,21 @@
+using Readarr.Http.Exceptions;
+
+namespace Readarr.Http.ErrorManagement
+{
+    public class ErrorModel
+    {
+        public string Message { get; set; }
+        public string Description { get; set; }
+        public object Content { get; set; }
+
+        public ErrorModel(ApiException exception)
+        {
+            Message = exception.Message;
+            Content = exception.Content;
+        }
+
+        public ErrorModel()
+        {
+        }
+    }
+}

src/Readarr.Http/ErrorManagement/ReadarrErrorPipeline.cs

@@ -0,0 +1,92 @@
+using System;
+using System.Data.SQLite;
+using FluentValidation;
+using Nancy;
+using NLog;
+using NzbDrone.Core.Datastore;
+using NzbDrone.Core.Exceptions;
+using Readarr.Http.Exceptions;
+using Readarr.Http.Extensions;
+using HttpStatusCode = Nancy.HttpStatusCode;
+
+namespace Readarr.Http.ErrorManagement
+{
+    public class ReadarrErrorPipeline
+    {
+        private readonly Logger _logger;
+
+        public ReadarrErrorPipeline(Logger logger)
+        {
+            _logger = logger;
+        }
+
+        public Response HandleException(NancyContext context, Exception exception)
+        {
+            _logger.Trace("Handling Exception");
+
+            if (exception is ApiException apiException)
+            {
+                _logger.Warn(apiException, "API Error");
+                return apiException.ToErrorResponse(context);
+            }
+
+            if (exception is ValidationException validationException)
+            {
+                _logger.Warn("Invalid request {0}", validationException.Message);
+
+                return validationException.Errors.AsResponse(context, HttpStatusCode.BadRequest);
+            }
+
+            if (exception is NzbDroneClientException clientException)
+            {
+                return new ErrorModel
+                {
+                    Message = exception.Message,
+                    Description = exception.ToString()
+                }.AsResponse(context, (HttpStatusCode)clientException.StatusCode);
+            }
+
+            if (exception is ModelNotFoundException notFoundException)
+            {
+                return new ErrorModel
+                {
+                    Message = exception.Message,
+                    Description = exception.ToString()
+                }.AsResponse(context, HttpStatusCode.NotFound);
+            }
+
+            if (exception is ModelConflictException conflictException)
+            {
+                return new ErrorModel
+                {
+                    Message = exception.Message,
+                    Description = exception.ToString()
+                }.AsResponse(context, HttpStatusCode.Conflict);
+            }
+
+            if (exception is SQLiteException sqLiteException)
+            {
+                if (context.Request.Method == "PUT" || context.Request.Method == "POST")
+                {
+                    if (sqLiteException.Message.Contains("constraint failed"))
+                    {
+                        return new ErrorModel
+                        {
+                            Message = exception.Message,
+                        }.AsResponse(context, HttpStatusCode.Conflict);
+                    }
+                }
+
+                _logger.Error(sqLiteException, "[{0} {1}]", context.Request.Method, context.Request.Path);
+            }
+
+            _logger.Fatal(exception, "Request Failed. {0} {1}", context.Request.Method, context.Request.Path);
+
+            return new ErrorModel
+            {
+                Message = exception.Message,
+                Description = exception.ToString()
+            }.AsResponse(context, HttpStatusCode.InternalServerError);
+        }
+    }
+}