mirror of
https://github.com/wanghongenpin/proxypin.git
synced 2026-03-26 06:29:46 +08:00
135 lines
3.4 KiB
Dart
135 lines
3.4 KiB
Dart
/*
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* Copyright 2023 Hongen Wang All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import 'dart:convert';
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import 'dart:io';
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import 'package:path_provider/path_provider.dart';
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/// 请求屏蔽
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/// @author wanghongen
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/// 2024/02/02
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class RequestBlockManager {
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static RequestBlockManager? _instance;
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bool enabled = true;
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List<RequestBlockItem> list = [];
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final File _storageFile;
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RequestBlockManager._(this._storageFile);
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///单例
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static Future<RequestBlockManager> get instance async {
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if (_instance == null) {
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var file = await configFile();
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_instance = RequestBlockManager._(file);
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await _instance?._load();
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}
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return _instance!;
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}
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static Future<File> configFile() async {
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var directory = await getApplicationSupportDirectory().then((it) => it.path);
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var file = File('$directory${Platform.pathSeparator}request_block.json');
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if (!await file.exists()) {
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await file.create(recursive: true);
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}
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return file;
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}
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///加载
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Future<void> _load() async {
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var json = await _storageFile.readAsString();
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if (json.isEmpty) return;
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var config = jsonDecode(json);
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enabled = config['enabled'] == true;
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list.clear();
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config['list']?.forEach((element) {
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list.add(RequestBlockItem.fromJson(element));
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});
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}
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addBlockRequest(RequestBlockItem item) {
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list.add(item);
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flushConfig();
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}
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removeBlockRequest(int index) {
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list.removeAt(index);
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flushConfig();
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}
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/// 是否启用
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bool enableBlockRequest(String url) {
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if (!enabled) {
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return false;
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}
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return list.any((element) => element.match(url, BlockType.blockRequest));
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}
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bool enableBlockResponse(String url) {
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if (!enabled) {
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return false;
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}
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return list.any((element) => element.match(url, BlockType.blockResponse));
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}
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///刷新配置
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Future<void> flushConfig() async {
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_storageFile.writeAsString(jsonEncode({'enabled': enabled, 'list': list}));
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}
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}
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enum BlockType {
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blockRequest('屏蔽请求'),
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blockResponse('屏蔽响应');
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//名称
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final String label;
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const BlockType(this.label);
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static BlockType nameOf(String name) {
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return BlockType.values.firstWhere((element) => element.name == name);
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}
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}
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class RequestBlockItem {
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bool enabled = true;
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String url;
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BlockType type;
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RegExp? urlReg;
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RequestBlockItem(this.enabled, this.url, this.type);
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//匹配url
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bool match(String url, BlockType blockType) {
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urlReg ??= RegExp(this.url.replaceAll("*", ".*"));
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return enabled && type == blockType && urlReg!.hasMatch(url);
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}
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factory RequestBlockItem.fromJson(Map<String, dynamic> json) {
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return RequestBlockItem(json['enabled'], json['url'], BlockType.nameOf(json['type']));
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}
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Map<String, dynamic> toJson() {
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return {'enabled': enabled, 'url': url, 'type': type.name};
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}
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@override
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String toString() {
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return toJson().toString();
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}
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}
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