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proxypin/lib/ui/mobile/setting/rewrite/rewrite_replace.dart
2025-07-29 22:51:04 +08:00

557 lines
19 KiB
Dart

/*
* Copyright 2023 Hongen Wang All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import 'package:file_picker/file_picker.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:proxypin/l10n/app_localizations.dart';
import 'package:proxypin/network/components/manager/rewrite_rule.dart';
import 'package:proxypin/ui/component/state_component.dart';
import 'package:proxypin/ui/component/utils.dart';
import 'package:proxypin/ui/component/widgets.dart';
import 'package:proxypin/utils/lang.dart';
/// 重写替换
/// @author wanghongen
class MobileRewriteReplace extends StatefulWidget {
final RuleType ruleType;
final List<RewriteItem>? items;
final ScrollController? scrollController;
const MobileRewriteReplace({super.key, this.items, required this.ruleType, this.scrollController});
@override
State<MobileRewriteReplace> createState() => RewriteReplaceState();
}
class RewriteReplaceState extends State<MobileRewriteReplace> {
final _headerKey = GlobalKey<HeadersState>();
final bodyTextController = TextEditingController();
late ScrollController? bodyScrollController;
late RuleType ruleType;
List<RewriteItem> items = [];
AppLocalizations get localizations => AppLocalizations.of(context)!;
@override
initState() {
super.initState();
initItems(widget.ruleType, widget.items);
bodyScrollController = trackingScroll(widget.scrollController);
}
@override
dispose() {
bodyTextController.dispose();
bodyScrollController?.dispose();
super.dispose();
}
///初始化重写项
void initItems(RuleType ruleType, List<RewriteItem>? items) {
this.items.clear();
this.ruleType = ruleType;
if (ruleType == RuleType.redirect) {
_initRewriteItem(items, RewriteType.redirect, enabled: true);
return;
}
if (ruleType == RuleType.requestReplace) {
_initRewriteItem(items, RewriteType.replaceRequestLine);
_initRewriteItem(items, RewriteType.replaceRequestHeader);
_initRewriteItem(items, RewriteType.replaceRequestBody, enabled: true);
return;
}
if (ruleType == RuleType.responseReplace) {
_initRewriteItem(items, RewriteType.replaceResponseStatus);
_initRewriteItem(items, RewriteType.replaceResponseHeader);
_initRewriteItem(items, RewriteType.replaceResponseBody, enabled: true);
return;
}
}
void _initRewriteItem(List<RewriteItem>? items, RewriteType type, {bool enabled = false}) {
var item = items?.firstWhereOrNull((it) => it.type == type);
RewriteItem rewriteItem = RewriteItem(type, item?.enabled ?? enabled, values: item?.values);
this.items.add(rewriteItem);
if (type == RewriteType.replaceRequestHeader || type == RewriteType.replaceResponseHeader) {
_headerKey.currentState?.setHeaders(rewriteItem.headers);
}
if ((type == RewriteType.replaceResponseBody || type == RewriteType.replaceRequestBody) &&
rewriteItem.bodyType != ReplaceBodyType.file.name) {
bodyTextController.text = rewriteItem.body ?? '';
}
}
List<RewriteItem> getItems() {
var headers = _headerKey.currentState?.getHeaders();
if (headers != null) {
items
.firstWhere(
(item) => item.type == RewriteType.replaceRequestHeader || item.type == RewriteType.replaceResponseHeader)
.headers = headers;
}
return items;
}
@override
Widget build(BuildContext context) {
if (ruleType == RuleType.redirect) {
return Padding(padding: const EdgeInsets.only(top: 10, bottom: 10), child: redirectEdit(items.first));
}
if (ruleType == RuleType.responseReplace || ruleType == RuleType.requestReplace) {
bool requestEdited = ruleType == RuleType.requestReplace;
List<String> tabs = requestEdited
? [localizations.requestLine, localizations.requestHeader, localizations.requestBody]
: [localizations.statusCode, localizations.responseHeader, localizations.responseBody];
return DefaultTabController(
length: tabs.length,
initialIndex: tabs.length - 1,
child: Scaffold(
appBar: tabBar(tabs),
body: TabBarView(children: [
KeepAliveWrapper(child: requestEdited ? requestLine() : statusCodeEdit()),
KeepAliveWrapper(child: headers()),
KeepAliveWrapper(child: body())
])),
);
}
return Container();
}
//tabBar
TabBar tabBar(List<String> tabs) {
return TabBar(
labelPadding: const EdgeInsets.symmetric(horizontal: 0),
tabs: tabs
.map((label) => Tab(
height: 38,
child: Row(mainAxisAlignment: MainAxisAlignment.center, children: [
Text(label, style: const TextStyle(fontSize: 13, fontWeight: FontWeight.w500)),
const SizedBox(width: 3),
Dot(color: items[tabs.indexOf(label)].enabled ? const Color(0xFF00FF00) : Colors.grey)
])))
.toList());
}
bool jsonFormatted = false;
//body
Widget body() {
bool isCN = Localizations.localeOf(context) == const Locale.fromSubtags(languageCode: 'zh');
var rewriteItem = items.firstWhere(
(item) => item.type == RewriteType.replaceRequestBody || item.type == RewriteType.replaceResponseBody);
return ListView(physics: const ClampingScrollPhysics(), children: [
Row(mainAxisAlignment: MainAxisAlignment.start, crossAxisAlignment: CrossAxisAlignment.center, children: [
const SizedBox(width: 5),
Text("${localizations.type}: "),
SizedBox(
width: 90,
child: DropdownButtonFormField<String>(
value: rewriteItem.bodyType ?? ReplaceBodyType.text.name,
focusColor: Colors.transparent,
itemHeight: 48,
decoration:
const InputDecoration(contentPadding: EdgeInsets.all(10), isDense: true, border: InputBorder.none),
items: ReplaceBodyType.values
.map((e) => DropdownMenuItem(
value: e.name,
child: Text(isCN ? e.label : e.name.toUpperCase(),
style: const TextStyle(fontSize: 14, fontWeight: FontWeight.w500))))
.toList(),
onChanged: (val) => setState(() {
rewriteItem.bodyType = val!;
}))),
Expanded(
child: Row(mainAxisAlignment: MainAxisAlignment.end, children: [
IconButton(
tooltip: 'JSON Format',
icon:
Icon(Icons.data_object, size: 20, color: jsonFormatted ? Theme.of(context).colorScheme.primary : null),
onPressed: () {
setState(() {
jsonFormatted = !jsonFormatted;
bodyTextController.text =
jsonFormatted ? JSON.pretty(bodyTextController.text) : JSON.compact(bodyTextController.text);
});
},
),
const SizedBox(width: 5),
Text(localizations.enable),
const SizedBox(width: 5),
SwitchWidget(
value: rewriteItem.enabled,
scale: 0.65,
onChanged: (val) => setState(() {
rewriteItem.enabled = val;
}))
]))
]),
const SizedBox(height: 10),
if (rewriteItem.bodyType == ReplaceBodyType.file.name)
fileBodyEdit(rewriteItem)
else
TextFormField(
controller: bodyTextController,
scrollPhysics: const BouncingScrollPhysics(),
scrollController: bodyScrollController,
style: const TextStyle(fontSize: 14),
minLines: 20,
maxLines: 23,
decoration: decoration(localizations.replaceBodyWith,
hintText: '${localizations.example} {"code":"200","data":{}}'),
onChanged: (val) => rewriteItem.body = val)
]);
}
Widget fileBodyEdit(RewriteItem item) {
return Column(children: [
const SizedBox(height: 5),
Row(mainAxisAlignment: MainAxisAlignment.spaceEvenly, children: [
FilledButton(
onPressed: () async {
FilePickerResult? result = await FilePicker.platform.pickFiles();
if (result == null) {
return;
}
item.bodyFile = result.files.single.path;
setState(() {});
},
child: Text(localizations.selectFile, style: const TextStyle(fontSize: 12, fontWeight: FontWeight.w500))),
const SizedBox(width: 10),
FilledButton(
onPressed: () {
setState(() {
item.bodyFile = null;
});
},
child: Text(localizations.delete, style: const TextStyle(fontSize: 12, fontWeight: FontWeight.w500))),
]),
const SizedBox(height: 10),
if (item.bodyFile != null)
Container(
padding: const EdgeInsets.all(8),
foregroundDecoration:
BoxDecoration(border: Border.all(color: Theme.of(context).colorScheme.primary, width: 1)),
child: Text(item.bodyFile ?? ''))
]);
}
//headers
Widget headers() {
var rewriteItem = items.firstWhere(
(item) => item.type == RewriteType.replaceRequestHeader || item.type == RewriteType.replaceResponseHeader);
return ListView(physics: const ClampingScrollPhysics(), children: [
Row(mainAxisAlignment: MainAxisAlignment.start, crossAxisAlignment: CrossAxisAlignment.center, children: [
const Text('Header'),
const SizedBox(width: 10),
Expanded(
child: Row(mainAxisAlignment: MainAxisAlignment.end, children: [
Text(localizations.enable),
const SizedBox(width: 10),
SwitchWidget(
value: rewriteItem.enabled,
scale: 0.65,
onChanged: (val) => setState(() {
rewriteItem.enabled = val;
}))
]))
]),
Headers(headers: rewriteItem.headers, key: _headerKey, scrollController: widget.scrollController)
]);
}
///请求行
Widget requestLine() {
var rewriteItem = items.firstWhere((item) => item.type == RewriteType.replaceRequestLine);
return ListView(
physics: const ClampingScrollPhysics(),
children: [
Row(children: [
Text(localizations.requestMethod),
const SizedBox(width: 10),
SizedBox(
width: 120,
child: DropdownButtonFormField<String>(
value: rewriteItem.method?.name ?? 'GET',
focusColor: Colors.transparent,
itemHeight: 48,
decoration: const InputDecoration(
contentPadding: EdgeInsets.all(10), isDense: true, border: InputBorder.none),
items: ['GET', 'POST', 'PUT', 'DELETE', 'PATCH', 'HEAD', 'OPTIONS']
.map((e) => DropdownMenuItem(
value: e, child: Text(e, style: const TextStyle(fontSize: 13, fontWeight: FontWeight.w500))))
.toList(),
onChanged: (val) {
setState(() {
rewriteItem.values['method'] = val!;
});
})),
Expanded(
child: Row(mainAxisAlignment: MainAxisAlignment.end, children: [
Text(localizations.enable),
const SizedBox(width: 10),
SwitchWidget(
value: rewriteItem.enabled,
scale: 0.65,
onChanged: (val) {
setState(() {
rewriteItem.enabled = val;
});
})
])),
]),
const SizedBox(height: 15),
textField("Path", rewriteItem.path, "${localizations.example} /api/v1/user",
onChanged: (val) => rewriteItem.path = val),
const SizedBox(height: 15),
textField("URL${localizations.param}", rewriteItem.queryParam, "${localizations.example} id=1&name=2",
onChanged: (val) => rewriteItem.queryParam = val),
],
);
}
//重定向
Widget redirectEdit(RewriteItem rewriteItem) {
return TextFormField(
decoration: decoration(localizations.redirectTo, hintText: 'https://www.example.com/api'),
maxLines: 5,
initialValue: rewriteItem.redirectUrl,
onChanged: (val) => rewriteItem.redirectUrl = val,
validator: (val) {
if (val == null || val.trim().isEmpty) {
return '${localizations.redirect} URL ${localizations.cannotBeEmpty}';
}
return null;
});
}
Widget textField(String label, dynamic value, String hint, {ValueChanged<String>? onChanged}) {
return Row(children: [
SizedBox(width: 80, child: Text(label)),
Expanded(
child: TextFormField(
initialValue: value,
onChanged: onChanged,
decoration: InputDecoration(
hintText: hint,
hintStyle: TextStyle(color: Colors.grey.shade500),
contentPadding: const EdgeInsets.all(10),
errorStyle: const TextStyle(height: 0, fontSize: 0),
focusedBorder: focusedBorder(),
border: const OutlineInputBorder()),
))
]);
}
Widget statusCodeEdit() {
var rewriteItem = items.firstWhere((item) => item.type == RewriteType.replaceResponseStatus);
return ListView(physics: const ClampingScrollPhysics(), children: [
Row(crossAxisAlignment: CrossAxisAlignment.center, children: [
Text(localizations.statusCode),
const SizedBox(width: 10),
SizedBox(
width: 100,
child: TextFormField(
style: const TextStyle(fontSize: 14),
initialValue: rewriteItem.statusCode?.toString(),
onChanged: (val) => rewriteItem.statusCode = int.tryParse(val),
inputFormatters: [FilteringTextInputFormatter.digitsOnly],
decoration: InputDecoration(
contentPadding: const EdgeInsets.all(10),
focusedBorder: focusedBorder(),
isDense: true,
border: const OutlineInputBorder()),
)),
Expanded(
child: Row(mainAxisAlignment: MainAxisAlignment.end, children: [
Text(localizations.enable),
const SizedBox(width: 10),
SwitchWidget(
value: rewriteItem.enabled,
scale: 0.65,
onChanged: (val) => setState(() {
rewriteItem.enabled = val;
}))
])),
const SizedBox(width: 10),
])
]);
}
InputDecoration decoration(String label, {String? hintText}) {
Color color = Theme.of(context).colorScheme.primary;
return InputDecoration(
floatingLabelBehavior: FloatingLabelBehavior.always,
labelText: label,
hintText: hintText,
hintStyle: TextStyle(color: Colors.grey.shade500),
border: OutlineInputBorder(borderSide: BorderSide(width: 0.8, color: color)),
enabledBorder: OutlineInputBorder(borderSide: BorderSide(width: 1.5, color: color)),
focusedBorder: OutlineInputBorder(borderSide: BorderSide(width: 2, color: color)));
}
InputBorder focusedBorder() {
return OutlineInputBorder(borderSide: BorderSide(color: Theme.of(context).colorScheme.primary, width: 2));
}
}
///请求头
class Headers extends StatefulWidget {
final Map<String, String>? headers;
final ScrollController? scrollController;
const Headers({super.key, this.headers, this.scrollController});
@override
State<StatefulWidget> createState() {
return HeadersState();
}
}
class HeadersState extends State<Headers> with AutomaticKeepAliveClientMixin {
final Map<TextEditingController, TextEditingController> _headers = {};
AppLocalizations get localizations => AppLocalizations.of(context)!;
@override
bool get wantKeepAlive => true;
@override
void initState() {
super.initState();
if (widget.headers == null) {
return;
}
setHeaders(widget.headers);
}
void setHeaders(Map<String, String>? headers) {
_clear();
headers?.forEach((name, value) {
_headers[TextEditingController(text: name)] = TextEditingController(text: value);
});
}
///获取所有请求头
Map<String, String> getHeaders() {
var headers = <String, String>{};
_headers.forEach((name, value) {
if (name.text.isEmpty) {
return;
}
headers[name.text] = value.text;
});
return headers;
}
@override
dispose() {
_clear();
super.dispose();
}
_clear() {
_headers.forEach((key, value) {
key.dispose();
value.dispose();
});
_headers.clear();
}
@override
Widget build(BuildContext context) {
super.build(context);
var list = _buildRows();
return Padding(
padding: const EdgeInsets.only(top: 10),
child: ListView.separated(
shrinkWrap: true,
physics: const ClampingScrollPhysics(),
separatorBuilder: (context, index) =>
index == list.length ? const SizedBox() : const Divider(thickness: 0.2),
itemBuilder: (context, index) => index < list.length
? list[index]
: TextButton(
child: Text("${localizations.add}Header", textAlign: TextAlign.center),
onPressed: () {
setState(() {
_headers[TextEditingController()] = TextEditingController();
});
},
),
itemCount: list.length + 1));
}
List<Widget> _buildRows() {
List<Widget> list = [];
_headers.forEach((key, val) {
list.add(_row(
_cell(key, isKey: true),
_cell(val),
Padding(
padding: const EdgeInsets.only(right: 15),
child: InkWell(
onTap: () {
setState(() {
_headers.remove(key);
});
},
child: const Icon(Icons.remove_circle, size: 16)))));
});
return list;
}
Widget _cell(TextEditingController val, {bool isKey = false}) {
return Container(
padding: const EdgeInsets.only(right: 5),
child: TextFormField(
style: TextStyle(fontSize: 12, fontWeight: isKey ? FontWeight.w500 : null),
controller: val,
minLines: 1,
maxLines: 3,
decoration: InputDecoration(
isDense: true,
border: InputBorder.none,
hintStyle: TextStyle(fontSize: 12, color: Colors.grey),
hintText: isKey ? "Key" : "Value")));
}
Widget _row(Widget key, Widget val, Widget? op) {
return Row(children: [
Expanded(flex: 4, child: key),
const Text(": ", style: TextStyle(color: Colors.deepOrangeAccent)),
Expanded(flex: 6, child: val),
op ?? const SizedBox()
]);
}
}