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077dcaf742
These need to be handled separately when the server encounters an error and returns HTML instead of JSON.
86 lines
2.5 KiB
Dart
86 lines
2.5 KiB
Dart
/*
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* This file is part of wger Workout Manager <https://github.com/wger-project>.
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* Copyright (c) 2020 - 2025 wger Team
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*
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* wger Workout Manager is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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import 'dart:convert';
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import 'dart:io';
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import 'package:http/http.dart';
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enum ErrorType {
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json,
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html,
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text,
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}
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const HTML_ERROR_KEY = 'html_error';
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class WgerHttpException implements Exception {
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Map<String, dynamic> errors = {};
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/// The exception type. While the majority will be json, it is possible that
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/// the server will return HTML, e.g. if there has been an internal server error
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/// or similar.
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late ErrorType type;
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/// Custom http exception
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WgerHttpException(Response response) {
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type = ErrorType.json;
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final dynamic responseBody = response.body;
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final contentType = response.headers[HttpHeaders.contentTypeHeader];
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if (contentType != null && contentType.contains('text/html')) {
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type = ErrorType.html;
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}
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if (responseBody == null) {
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errors = {'unknown_error': 'An unknown error occurred, no further information available'};
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} else {
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try {
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if (type == ErrorType.json) {
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final response = json.decode(responseBody);
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errors = (response is Map ? response : {'unknown_error': response})
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.cast<String, dynamic>();
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} else if (type == ErrorType.html) {
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errors = {HTML_ERROR_KEY: responseBody.toString()};
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} else {
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errors = {'text_error': responseBody.toString()};
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}
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} catch (e) {
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errors = {'unknown_error': responseBody};
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}
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}
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}
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WgerHttpException.fromMap(Map<String, dynamic> map) : type = ErrorType.json {
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errors = map;
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}
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String get htmlError {
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if (type != ErrorType.html) {
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return '';
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}
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return errors[HTML_ERROR_KEY] ?? '';
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}
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@override
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String toString() {
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return 'WgerHttpException ($type): $errors';
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}
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}
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