Files
pangolin/client/lib/screens/connect_page.dart
T
wangjia d9378b6729 fix(client): 看门狗返工 — 意外掉线捕获+服务端down轮询,撤销TUN下假阳性的TCP探测
测试暴露:全局TUN下App的socket到节点IP被本地TUN当场接住(假1ms),客户端TCP探数据口
不可行;且节点死时内核先掉线、提示被kernel off覆盖、节点页status不刷新显示绿色。返工:
- 撤销 DataPlaneProber/livePingMs;延迟改回内核urltest(sing-box经REALITY真实直连数据面
  探出的RTT,唯一可靠口径),连接态urltest=0→显示—不回退旧ping。
- 看门狗两条可靠路径:A 捕获「非用户主动的内核掉线」→置「节点异常」+刷列表;
  B 连接态周期刷/v1/nodes,所连节点被判down→智能切/手动断。
- _offNotice 让显式断开与kernel off读同一提示字段,不再互相覆盖(修「断开但没报错」)。
- 节点页周期15s刷新,让服务端down状态浮现(tile已按isDown置灰)。
返工测试:意外掉线提示/服务端down切/断/健康保持,全过。

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-29 23:21:09 +08:00

367 lines
14 KiB
Dart
Raw Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
// connect_page.dart — 连接页(三端:desktop 居中单列 / tablet 双栏 / mobile 单列滚动)
import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import '../bridge/vpn_bridge.dart';
import '../core/responsive/form_factor.dart';
import '../util/format.dart';
import '../l10n/app_text.dart';
import '../models/node.dart';
import '../pangolin_theme.dart';
import '../state/app_providers.dart';
import '../state/connection_provider.dart';
import '../state/nodes_provider.dart';
import '../state/quota_provider.dart';
import '../widgets/app_top_bar.dart';
import '../widgets/connect_button.dart';
import '../widgets/country_code.dart';
import '../widgets/pangolin_icons.dart';
import '../widgets/quota_card.dart';
class ConnectPage extends ConsumerWidget {
const ConnectPage({super.key, required this.isWide, required this.onOpenNodes});
final bool isWide;
final VoidCallback onOpenNodes;
@override
Widget build(BuildContext context, WidgetRef ref) {
final c = context.pangolin;
final t = ref.watch(appTextProvider);
final conn = ref.watch(connectionProvider);
final node = ref.watch(effectiveNodeProvider);
final smart = ref.watch(isSmartSelectProvider);
final isFree = ref.watch(isFreePlanProvider);
final quota = ref.watch(quotaProvider);
final stats = ref.watch(vpnStatsProvider).valueOrNull;
// 账户首拉中 → 整页转圈,先拉到 me(决定免费/会员)再渲染,
// 避免「先闪免费广告、me 到了再跳会员」。me 是常驻 Notifier,只首启时转一下。
if (ref.watch(meLoadingProvider)) {
return Center(child: CircularProgressIndicator(color: c.accent, strokeWidth: 2.6));
}
final down = formatSpeed(stats?.downloadSpeed);
final up = formatSpeed(stats?.uploadSpeed);
// 延迟 = client→数据面 RTT,按连接态取不同测法(全局 TUN 下 App socket 测不到真节点):
// · 连接态:内核 urltest —— sing-box 经 REALITY 真实直连数据面探出的 RTT(唯一可靠口径);
// 节点死 → urltest=0 → 落到 —,本身即健康信号。
// · 断开态:节点页 TCP 探针(直接握手 节点:443,无 TUN,真实 RTT)。
var livePing = conn.phase == VpnPhase.on ? _bestUrltest(stats) : node.ping;
if (livePing <= 0 && conn.phase != VpnPhase.on) livePing = node.ping;
final pingLabel = livePing > 0 ? '${livePing}ms' : '';
final latencyValue = livePing > 0 ? '$livePing' : '';
final caption = switch (conn.phase) {
VpnPhase.off => t.capOff,
VpnPhase.connecting => t.capConnecting,
VpnPhase.on => t.capOn,
};
final button = ConnectButton(
phase: conn.phase,
elapsed: conn.elapsed,
offLabel: t.connectNow,
secureLabel: t.secure,
onTap: () => ref.read(connectionProvider.notifier).toggle(),
);
final captionWidget = Column(mainAxisSize: MainAxisSize.min, children: [
Text(caption, style: PangolinText.body.copyWith(color: c.fg2, fontWeight: FontWeight.w600)),
if (conn.error != null) ...[
const SizedBox(height: 8),
Padding(
padding: const EdgeInsets.symmetric(horizontal: 24),
child: Text(conn.error!,
textAlign: TextAlign.center,
style: PangolinText.caption.copyWith(color: c.danger, fontWeight: FontWeight.w500)),
),
],
]);
final infoChildren = <Widget>[
if (isFree)
QuotaCard(quota: quota, t: t, onWatchAd: () => ref.read(quotaProvider.notifier).watchAd()),
if (conn.phase == VpnPhase.on) _SpeedRow(t: t, down: down, up: up, latency: latencyValue),
_CurrentNodeCard(t: t, node: node, smart: smart, pingLabel: pingLabel, showLabel: isWide, onTap: onOpenNodes),
];
final statusTrailing = Text(
conn.phase == VpnPhase.on ? t.online : t.offline,
style: PangolinText.mono.copyWith(
fontSize: 12,
color: conn.phase == VpnPhase.on ? c.success : c.fg3,
fontWeight: FontWeight.w600),
);
if (context.formFactor == FormFactor.desktop) {
// 桌面居中单列(对照 ui_kits/desktop/dapp.jsx DConnect
return Center(
child: SingleChildScrollView(
padding: const EdgeInsets.symmetric(vertical: 24, horizontal: 40),
child: Column(mainAxisSize: MainAxisSize.min, children: [
ConnectButton(
phase: conn.phase,
elapsed: conn.elapsed,
offLabel: t.connectNow,
secureLabel: t.secure,
size: 176,
onTap: () => ref.read(connectionProvider.notifier).toggle(),
),
const SizedBox(height: 24),
Text(caption,
textAlign: TextAlign.center,
style: PangolinText.display.copyWith(color: c.fg1, fontSize: 22, fontWeight: FontWeight.w700)),
const SizedBox(height: 10),
if (conn.error != null) ...[
Padding(
padding: const EdgeInsets.only(bottom: 10),
child: Text(conn.error!,
textAlign: TextAlign.center,
style: PangolinText.caption.copyWith(color: c.danger, fontWeight: FontWeight.w500)),
),
],
_NodePill(t: t, node: node, smart: smart, pingLabel: pingLabel),
if (isFree) ...[
const SizedBox(height: 24),
SizedBox(
width: 340,
child: QuotaCard(quota: quota, t: t, onWatchAd: () => ref.read(quotaProvider.notifier).watchAd()),
),
],
if (conn.phase == VpnPhase.on) ...[
const SizedBox(height: 16),
_SpeedRow(t: t, down: down, up: up, latency: latencyValue),
],
]),
),
);
}
if (isWide) {
// 宽屏双栏:左大连接键 / 右信息列(额度卡→当前节点→速率)
return Column(children: [
Expanded(
child: Row(children: [
Expanded(
flex: 5,
child: Center(
child: Column(mainAxisSize: MainAxisSize.min, children: [
button,
const SizedBox(height: 24),
captionWidget,
]),
),
),
Container(width: 1, color: c.border),
SizedBox(
width: 332,
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 24),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
for (final w in infoChildren) Padding(padding: const EdgeInsets.only(bottom: 14), child: w),
],
),
),
),
]),
),
]);
}
// 窄屏单栏(可滚动,避免窗口偏矮时底部溢出):
// 顶栏固定,内容区用 SingleChildScrollView + ConstrainedBox(minHeight) +
// IntrinsicHeight,高度足够时连接键居中,高度不足时整体滚动而非溢出。
return Column(children: [
AppTopBar(brand: t.brand, trailing: statusTrailing),
Expanded(
child: LayoutBuilder(
builder: (context, constraints) => SingleChildScrollView(
child: ConstrainedBox(
constraints: BoxConstraints(minHeight: constraints.maxHeight),
child: IntrinsicHeight(
child: Column(children: [
Expanded(
child: Center(
child: Padding(
padding: const EdgeInsets.symmetric(vertical: 24),
child: Column(mainAxisSize: MainAxisSize.min, children: [
button,
const SizedBox(height: 24),
captionWidget,
]),
),
),
),
Padding(
padding: const EdgeInsets.fromLTRB(20, 0, 20, 18),
child: Column(crossAxisAlignment: CrossAxisAlignment.stretch, children: [
for (final w in infoChildren) Padding(padding: const EdgeInsets.only(bottom: 12), child: w),
]),
),
]),
),
),
),
),
),
]);
}
}
/// 内核 urltest 各出站中的最小正延迟(ms);无则 0。连接态用作 client→数据面 RTT。
int _bestUrltest(VpnStatsEvent? s) {
if (s == null) return 0;
final ds = s.urltestResults.where((r) => r.delayMs > 0).map((r) => r.delayMs);
return ds.isEmpty ? 0 : ds.reduce((a, b) => a < b ? a : b);
}
/// 实时速率行(连接成功时显示;来自内核 statsStream 实时数据)。
class _SpeedRow extends StatelessWidget {
const _SpeedRow({required this.t, required this.down, required this.up, required this.latency});
final AppText t;
final (String, String) down;
final (String, String) up;
final String latency;
@override
Widget build(BuildContext context) {
final c = context.pangolin;
final metrics = [
(PangolinIcons.arrowDown, t.download, down.$1, down.$2),
(PangolinIcons.arrowUp, t.upload, up.$1, up.$2),
(PangolinIcons.zap, t.latency, latency, 'ms'),
];
return Row(children: [
for (var i = 0; i < metrics.length; i++)
Expanded(
child: Padding(
padding: EdgeInsets.only(right: i < metrics.length - 1 ? 12 : 0),
child: Container(
padding: const EdgeInsets.fromLTRB(13, 11, 13, 11),
decoration: BoxDecoration(
color: c.surface,
borderRadius: BorderRadius.circular(PangolinRadius.lg),
border: Border.all(color: c.border),
boxShadow: PangolinShadow.sm,
),
child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
Row(children: [
Icon(metrics[i].$1, size: 13, color: c.accent),
const SizedBox(width: 5),
Flexible(
child: Text(metrics[i].$2,
overflow: TextOverflow.ellipsis,
style: PangolinText.caption.copyWith(color: c.fg3, fontWeight: FontWeight.w600, fontSize: 11)),
),
]),
const SizedBox(height: 4),
Text.rich(TextSpan(
text: metrics[i].$3,
style: PangolinText.mono.copyWith(fontSize: 16, color: c.fg1, fontWeight: FontWeight.w500),
children: [TextSpan(text: ' ${metrics[i].$4}', style: PangolinText.caption.copyWith(color: c.fg3, fontSize: 10.5))],
)),
]),
),
),
),
]);
}
}
/// 当前节点卡(智能选择时展示「智能选择 + zap」)。
class _CurrentNodeCard extends StatelessWidget {
const _CurrentNodeCard({
required this.t,
required this.node,
required this.smart,
required this.pingLabel,
required this.showLabel,
required this.onTap,
});
final AppText t;
final Node node;
final bool smart;
final String pingLabel;
final bool showLabel;
final VoidCallback onTap;
@override
Widget build(BuildContext context) {
final c = context.pangolin;
final title = smart ? t.smartSelect : node.localizedName(t.lang);
final sub = smart
? '${node.localizedName(t.lang)} · $pingLabel'
: '${node.localizedSub(t.lang)} · $pingLabel';
return Material(
color: c.surface,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(PangolinRadius.lg),
side: BorderSide(color: c.border),
),
clipBehavior: Clip.antiAlias,
child: InkWell(
onTap: onTap,
child: Padding(
padding: const EdgeInsets.all(12),
child: Row(children: [
CountryCode(code: node.code, active: true),
const SizedBox(width: 12),
Expanded(
child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
if (showLabel)
Text(t.currentNode,
style: PangolinText.caption.copyWith(color: c.fg3, fontWeight: FontWeight.w600, fontSize: 11)),
Row(children: [
Flexible(
child: Text(title,
overflow: TextOverflow.ellipsis,
style: PangolinText.body.copyWith(color: c.fg1, fontWeight: FontWeight.w600)),
),
if (smart) ...[const SizedBox(width: 6), Icon(PangolinIcons.zap, size: 13, color: c.accent)],
]),
Text(sub, style: PangolinText.caption.copyWith(color: c.fg3, fontWeight: FontWeight.w400)),
]),
),
Icon(PangolinIcons.chevronRight, size: 20, color: c.fg3),
]),
),
),
);
}
}
/// 桌面连接页节点胶囊([zap] 智能选择 · 节点名 · 延迟ms)。
class _NodePill extends StatelessWidget {
const _NodePill({required this.t, required this.node, required this.smart, required this.pingLabel});
final AppText t;
final Node node;
final bool smart;
final String pingLabel;
@override
Widget build(BuildContext context) {
final c = context.pangolin;
final label = smart
? '${t.smartSelect} · ${node.localizedName(t.lang)} · $pingLabel'
: '${node.localizedName(t.lang)} · $pingLabel';
return Container(
padding: const EdgeInsets.only(left: 6, right: 14, top: 5, bottom: 5),
decoration: BoxDecoration(
color: c.surface,
border: Border.all(color: c.border),
borderRadius: BorderRadius.circular(PangolinRadius.full),
),
child: Row(mainAxisSize: MainAxisSize.min, children: [
// 地域国旗(无效码回退码块);智能选择再叠一个 zap 标识。
CountryCode(code: node.code, size: 20),
const SizedBox(width: 8),
if (smart) ...[Icon(PangolinIcons.zap, size: 13, color: c.accent), const SizedBox(width: 6)],
Text(label,
style: PangolinText.caption.copyWith(color: c.fg2, fontSize: 12.5, fontWeight: FontWeight.w600)),
]),
);
}
}