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