style: cut the comments down
Co-Authored-By: Claude Opus 5 <[email protected]>
This commit is contained in:
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66789d49c1
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11 files changed
+59
-132
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@@ -70,10 +70,7 @@ class MainActivity : FlutterActivity() {
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updateVpnNotification(title, text, action)
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result.success(null)
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}
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// Session ends only Dart can see (cap exhausted, server
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// ended the session, VPN error). The VPN service posts the
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// same alert for its own deadline, where this process may
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// already be gone. RevoltAlerts owns both.
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// Session ends only Dart sees; the service posts the rest.
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"showDisconnectedAlert" -> {
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RevoltAlerts.postDisconnected(this)
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result.success(null)
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@@ -5,9 +5,7 @@ import 'package:revoltvpn/logic/app_colors.dart';
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import 'package:revoltvpn/logic/session_timer.dart';
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import 'package:revoltvpn/logic/vpn_connection.dart';
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// Nothing rendered the connection's own messages, so they are collected here
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// in one place: whatever the user most needs to know right now, and whether it
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// is a problem (red) or just progress (dim).
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// The one line worth showing right now, and whether it is a problem.
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class _StatusDetail {
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const _StatusDetail(this.text, {this.isProblem = false});
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@@ -26,8 +24,7 @@ _StatusDetail? _detail(VpnConnection vpn, SessionTimer timer) {
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return _StatusDetail(vpn.statusMessage);
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}
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// The tunnel still carries traffic; only the control plane is missing, so
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// this is a warning, not a disconnect (review #2).
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// Control plane only - the tunnel still carries traffic.
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if (vpn.status == VpnStatus.connected && timer.serverUnreachable) {
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return const _StatusDetail(
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'Can\'t reach the server — still connected',
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@@ -136,9 +133,7 @@ class StatusBar extends StatelessWidget {
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],
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),
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),
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// Until this existed, a failed connect, an expired session and a
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// cap kill all just turned the button back to idle - the user
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// could not tell protected from unprotected (review #3).
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// Errors and session-end reasons used to render nowhere.
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if (detail != null)
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Padding(
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padding: const EdgeInsets.only(top: 6),
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@@ -96,18 +96,14 @@ class AdManager extends ChangeNotifier {
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// ── Show ad (or debug bypass) ─────────────────────────────────────
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// Returns the nonce carried in the SSV custom_data when the reward was
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// earned, null otherwise. The main flow passes it to vpn.connect(adNonce:)
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// so the client waits for the session this ad created — minting a second
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// nonce there is what broke every connect once ads were on.
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// Returns the nonce put in the SSV custom_data, null if unrewarded. connect()
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// must reuse it: minting a second nonce there rejects the ad's own session.
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Future<String?> showAd(String adType) async {
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if (!adsEnabled) {
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// Main connect: no ad to show — HivemindService.fetchConfigDirectly()
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// fires the server-gated bypass itself (rule 87).
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// Main connect fires its own bypass in fetchConfigDirectly (rule 87).
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if (adType != 'support' || !kDebugMode) return null;
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// Debug bypass: fire fake AdMob callback so support ads work in dev.
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// The server's ADMOB_BYPASS must be True for this to succeed.
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// Needs ADMOB_BYPASS=True server-side.
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final deviceId = await CryptoService.getDeviceId();
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final nonce = HivemindService.newNonce();
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try {
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@@ -81,15 +81,10 @@ class HivemindService {
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_expectedNonce = null;
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}
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// Fetches this device's VLESS URL. Three ways in:
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// adNonce != null — a real rewarded ad was watched; its SSV custom_data
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// carried this nonce, so wait for a session holding it.
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// Google's SSV callback can lag, so poll longer.
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// resume == true — re-attach to the session already granted (mode-switch
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// reconnect in connection_mode.dart). No ad, no bypass,
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// any nonce accepted — device_id already owns it.
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// neither — ads disabled: mint a nonce and fire the server-gated
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// ADMOB_BYPASS callback (rule 87).
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// Fetches this device's VLESS URL.
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// adNonce — wait for the session that ad created (SSV can lag, so poll longer)
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// resume — re-attach to the session already held; any nonce accepted
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// neither — ads off: mint a nonce and fire the bypass (rule 87)
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static Future<String> fetchConfigDirectly({
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void Function(int attempt, int total)? onAttempt,
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String? adNonce,
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@@ -32,15 +32,12 @@ class NotificationService {
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}
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}
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// Posts the "disconnected - not protected" alert for a session end the user
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// did not ask for. The native service posts the same alert (same id) when
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// its own deadline fires, because by then this process may be gone; a double
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// post replaces rather than stacks.
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// Same id as the service's own alert, so a double post replaces.
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static Future<void> showDisconnectedAlert() async {
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try {
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await _channel.invokeMethod<void>('showDisconnectedAlert');
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} catch (_) {
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// Informational only - never worth failing a disconnect over.
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// Informational only.
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}
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}
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@@ -42,10 +42,8 @@ class SessionTimer extends ChangeNotifier with WidgetsBindingObserver {
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int _lastUsedBytes = 0;
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Stopwatch? _sinceLastSuccessfulSync;
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// Wall-clock deadline, kept alongside the Stopwatch because they answer
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// different questions. The Stopwatch is CLOCK_MONOTONIC: it does not advance
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// while the device is suspended, which is exactly when an RTC_WAKEUP expiry
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// alarm fires, so it cannot be used to recognise an expiry after sleep.
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// Wall clock, because the Stopwatch is CLOCK_MONOTONIC and stops across
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// device suspend - exactly when the RTC_WAKEUP expiry alarm fires.
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DateTime? _deadlineAt;
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double _currentSpeedKBps = 0.0;
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@@ -70,14 +68,10 @@ class SessionTimer extends ChangeNotifier with WidgetsBindingObserver {
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int get usedBytes => _usedBytes;
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double get currentSpeedKBps => _currentSpeedKBps;
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// True once the control plane has missed enough polls in a row to be worth
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// telling the user about. It is a display state only: a tunnel that still
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// carries traffic is never torn down because the API is unreachable (the
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// native deadline and the server both still enforce expiry).
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// Display state only - an unreachable API never tears down a live tunnel.
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bool get serverUnreachable => _consecutiveFailures >= _maxConsecutiveFailures;
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// Why the last session ended, when the user did not end it themselves.
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// Cleared on the next connect. Rendered by status_bar.dart.
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// Why the last session ended, if the user did not end it. Cleared on connect.
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String? _lastEndMessage;
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String? get lastEndMessage => _lastEndMessage;
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@@ -146,19 +140,15 @@ class SessionTimer extends ChangeNotifier with WidgetsBindingObserver {
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}
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if (vpnConnection.status == VpnStatus.disconnected) {
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// The native deadline fires on the exact second while this 1 s tick is
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// in arbitrary phase, so expiry almost always arrives here rather than
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// at the countdown check in _tick - without this, the commonest session
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// end left the UI with nothing to say.
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// The native deadline beats the 1 s tick, so expiry lands here, not in
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// _tick. postAlert is false: the service already posted, and a
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// notification-Disconnect tap is the user asking.
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final deadline = _deadlineAt;
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final expired = _hasSyncedOnce &&
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deadline != null &&
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DateTime.now().isAfter(
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deadline.subtract(const Duration(seconds: 5)),
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);
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// postAlert is false either way: the native side already posted for its
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// own deadline, and the notification's Disconnect action is the user
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// asking, which must never raise a "not protected" alert.
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unawaited(_doDisconnect(
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'VPN tunnel dropped',
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endedMessage:
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@@ -168,9 +158,8 @@ class SessionTimer extends ChangeNotifier with WidgetsBindingObserver {
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}
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}
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// resetSupportClaim is false when re-attaching to a session the device
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// already holds: the support top-up is once per server session, and the
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// claim flag is the only thing enforcing that.
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// resetSupportClaim is false when re-attaching to a session already held:
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// the top-up is once per server session and this flag is what enforces it.
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Future<void> start({bool resetSupportClaim = true}) async {
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_sessionEpoch++;
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_remainingSeconds = 0;
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@@ -255,11 +244,8 @@ class SessionTimer extends ChangeNotifier with WidgetsBindingObserver {
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await _doDisconnect(reason);
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}
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// endedMessage is the one sentence the UI shows after an end the user did
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// not ask for; postAlert independently decides whether to raise the "not
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// protected" notification, which the native service already posts for every
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// stop it sees. Both exist so nobody is left on their real IP without being
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// told. A user-requested disconnect passes neither.
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// endedMessage is what the UI shows; postAlert raises the notification.
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// A user-requested disconnect passes neither.
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Future<void> _doDisconnect(
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String reason, {
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String? endedMessage,
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@@ -428,12 +414,8 @@ class SessionTimer extends ChangeNotifier with WidgetsBindingObserver {
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_remainingSeconds =
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(_remainingAtLastSync - elapsed).clamp(0, 1 << 31).toInt();
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// The Stopwatch is CLOCK_MONOTONIC and stops while the device is
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// suspended, so after a long sleep it over-reports - and with the server
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// unreachable no sync arrives to correct it, which is exactly the state
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// the app now stays in rather than disconnecting. Take whichever is
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// smaller, never the wall clock alone: a clock set backwards must not be
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// able to extend a session.
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// The Stopwatch over-reports after device suspend. Take the smaller of
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// the two, never the wall clock alone - a backward clock must not extend.
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final deadline = _deadlineAt;
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if (deadline != null) {
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final byWallClock = deadline.difference(DateTime.now()).inSeconds;
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@@ -224,9 +224,8 @@ class VpnConnection extends ChangeNotifier {
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return false;
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}
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// SOCKS5 mode skips requestPermission below (it would raise the VPN
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// consent dialog for an interface it never creates), so ask for the
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// notification permission on its own - the session alerts need it.
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// Proxy mode skips requestPermission below (VPN consent it never needs),
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// so it has to ask for POST_NOTIFICATIONS on its own.
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if (!kIsWeb && _activeMode == ConnectionMode.proxy) {
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try {
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await _nativeControl.invokeMethod<void>('requestNotificationPermission');
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@@ -67,10 +67,8 @@ class _ConnectionModeTileState extends State<ConnectionModeTile> {
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widget.onChanged?.call(next);
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}
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// Recovers from an orphaned proxy: tear the runtime down and re-attach to
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// the session this device already holds (connect(resume: true)), so a
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// readable set of credentials exists again. No rewarded ad and no new
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// session — the user is repairing a connection they already paid for.
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// Recovers an orphaned proxy: tear the runtime down and re-attach to the
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// session already held. No ad, no new session.
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Future<void> _reconnect() async {
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if (_reconnecting) return;
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final vpn = context.read<VpnConnection>();
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+1
-4
@@ -240,10 +240,7 @@ class FlutterVlessPlugin : FlutterPlugin, ActivityAware, PluginRegistry.Activity
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}
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}
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// POST_NOTIFICATIONS on its own, without VpnService.prepare: SOCKS5
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// mode never establishes a VPN interface, so it never called
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// requestPermission and both session alerts were dropped unasked
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// for on Android 13+.
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// POST_NOTIFICATIONS without VpnService.prepare, for proxy mode.
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"requestNotificationPermission" -> {
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val currentActivity = activity
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if (currentActivity == null) {
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+21
-40
@@ -67,9 +67,8 @@ class XrayVPNService : VpnService() {
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return START_NOT_STICKY
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}
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// Must stay above the command handling below: an intent carrying no
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// COMMAND falls through to the final else and stops a live tunnel - in
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// this case five minutes early, which is what it warns about.
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// Must stay above the command dispatch: an intent with no COMMAND
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// falls through to the final else and stops the tunnel.
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if (intent.getBooleanExtra(EXTRA_SESSION_WARNING, false)) {
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handleSessionWarningAlarm(intent.getStringExtra("RUNTIME_TOKEN").orEmpty())
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return START_NOT_STICKY
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@@ -428,12 +427,8 @@ class XrayVPNService : VpnService() {
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}
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}
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// userRequested marks the two stops the user drove themselves. Everything
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// else that reaches here while a tunnel is live - the expiry deadline, an
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// Xray or TUN failure, a fail-closed deadline arm - took protection away
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// without being asked, and must say so. isRunning is read before cleanup()
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// clears it, which is also what keeps a failed connect silent: it never had
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// a live tunnel to interrupt.
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// Anything that stops a live tunnel unasked must say so. isRunning is read
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// before cleanup() clears it, which keeps a failed connect silent.
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private fun stopAll(
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confirmationToken: String = currentConfig?.RUNTIME_TOKEN.orEmpty(),
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userRequested: Boolean = false,
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@@ -479,33 +474,26 @@ class XrayVPNService : VpnService() {
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else deadlineHandler.postDelayed(sessionDeadlineRunnable, delayMs)
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}
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// Schedules the five-minute warning off the same deadline the expiry alarm
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// holds. Unlike the deadline this is advisory: a warning that cannot be
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// scheduled must never stop a working tunnel, so nothing here fails closed.
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// Dart re-pushes the deadline on every sync, so this runs about once a minute.
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// Advisory, unlike the deadline itself: nothing here fails closed. Dart
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// re-pushes the deadline every sync, so this runs about once a minute.
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private fun armExpiryWarning(runtimeToken: String, expiresAtEpochMs: Long) {
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if (runtimeToken.isEmpty()) return
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val warnAt = expiresAtEpochMs - RevoltAlerts.WARNING_LEAD_MS
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// Deadline already inside the warning window (or past): either the alarm
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// has fired and its notification should stay up, or this is the short
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// bootstrap deadline at connect, which must not warn at all. Nothing is
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// cancelled here - Dart re-pushes the same deadline every 60 s with no
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// dedupe, so cancelling on this branch would reliably delete the armed
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// warning on the first sync after it came due and never re-arm it.
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// Inside the window already (or the short bootstrap deadline). Cancel
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// nothing here: with no dedupe on the re-push, cancelling on this
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// branch deletes the armed warning and never re-arms it.
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if (warnAt <= System.currentTimeMillis() + WARNING_REARM_GRACE_MS) return
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cancelSessionWarningAlarm()
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// More than the lead away, so any warning on screen belongs to an older
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// deadline - a support top-up just pushed it out.
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// A warning on screen now belongs to an older deadline (top-up).
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RevoltAlerts.cancelExpiryWarning(this)
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try {
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val alarmManager = getSystemService(Context.ALARM_SERVICE) as AlarmManager
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val pendingIntent = sessionWarningPendingIntent(runtimeToken)
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
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// Inexact on purpose: minute-level slop is fine for a warning,
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// and it keeps this off the SCHEDULE_EXACT_ALARM path.
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// Inexact on purpose - keeps this off SCHEDULE_EXACT_ALARM.
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alarmManager.setAndAllowWhileIdle(
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AlarmManager.RTC_WAKEUP,
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warnAt,
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@@ -522,8 +510,7 @@ class XrayVPNService : VpnService() {
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private fun handleSessionWarningAlarm(alarmToken: String) {
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val config = currentConfig
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if (config == null) {
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// The alarm woke a service process with no live runtime; there is
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// no session left to warn about.
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// Woke a process with no live runtime; nothing to warn about.
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stopSelf()
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return
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}
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@@ -537,9 +524,8 @@ class XrayVPNService : VpnService() {
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if (remaining < WARNING_FLOOR_MS ||
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remaining > RevoltAlerts.WARNING_LEAD_MS + WARNING_SLACK_MS
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) {
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// Too late to be a five-minute warning, or for a deadline that has
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// moved. Saying "5 minutes" with seconds left is worse than silence;
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// the disconnected alert follows either way.
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// Too late, or the deadline moved. Saying "5 minutes" with
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// seconds left is worse than silence.
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Log.w(TAG, "Ignoring session warning outside the warning window")
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return
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}
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@@ -707,10 +693,8 @@ class XrayVPNService : VpnService() {
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private fun cancelSessionWarningAlarm() {
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try {
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val alarmManager = getSystemService(Context.ALARM_SERVICE) as AlarmManager
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// Look the existing PendingIntent up instead of building one: with
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// FLAG_UPDATE_CURRENT, constructing it to cancel rewrites the live
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// alarm's RUNTIME_TOKEN to "" first, and a delivery already in
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// flight would then be dropped as a stale generation.
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// Look it up rather than build it: FLAG_UPDATE_CURRENT would
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// rewrite the live alarm's RUNTIME_TOKEN to "" before cancelling.
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existingSessionWarningPendingIntent()?.let { alarmManager.cancel(it) }
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} catch (e: Exception) {
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Log.w(TAG, "Failed to cancel session-warning alarm", e)
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@@ -725,9 +709,8 @@ class XrayVPNService : VpnService() {
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||||
return PendingIntent.getService(this, SESSION_WARNING_REQUEST_CODE, intent, flags)
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}
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||||
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||||
// A PendingIntent is identified by component plus request code, not extras,
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||||
// so the warning needs its own code or it would overwrite - and later
|
||||
// cancel - the expiry alarm.
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||||
// Identity is component + request code, not extras, so the warning needs
|
||||
// its own code or it clobbers the expiry alarm.
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||||
private fun sessionWarningPendingIntent(runtimeToken: String): PendingIntent {
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val intent = Intent(this, XrayVPNService::class.java)
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||||
.putExtra(EXTRA_SESSION_WARNING, true)
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||||
@@ -814,13 +797,11 @@ class XrayVPNService : VpnService() {
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||||
private const val EXTRA_SESSION_WARNING = "SESSION_WARNING"
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private const val SESSION_EXPIRY_REQUEST_CODE = 1001
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private const val SESSION_WARNING_REQUEST_CODE = 1002
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||||
// An idle-capable alarm can run late; accept that much drift before
|
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// treating a warning as belonging to a deadline that has moved.
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// Drift allowed before a warning is treated as belonging elsewhere.
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private const val WARNING_SLACK_MS = 60_000L
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||||
// Don't re-arm (and so re-post) for a deadline that only moved by the
|
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// jitter in a network round trip.
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||||
// Don't re-arm for a deadline that moved by round-trip jitter alone.
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||||
private const val WARNING_REARM_GRACE_MS = 15_000L
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// Below this the warning has lost its point; stay quiet instead.
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// Below this the warning has lost its point.
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private const val WARNING_FLOOR_MS = 60_000L
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}
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||||
}
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||||
+6
-16
@@ -12,23 +12,16 @@ import android.util.Log
|
||||
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||||
// local_packages/.../xray/utils/RevoltAlerts.kt
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||||
//
|
||||
// The two user-facing session alerts, built in one place because two processes
|
||||
// post them: XrayVPNService (:RunSoLibXrayDaemon) owns the native deadline and
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||||
// can still warn when the UI process is gone, while MainActivity posts the
|
||||
// "not protected" alert for session ends only Dart can see (cap exhausted,
|
||||
// server ended the session, VPN error). Both use the same ids, so whichever
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||||
// posts second just replaces the first notification instead of stacking.
|
||||
//
|
||||
// These are deliberately NOT the foreground-service notification (id 1,
|
||||
// channel REVOLT_VPN_SERVICE, IMPORTANCE_LOW): an alert the user must notice
|
||||
// needs its own high-importance channel, and must be dismissible.
|
||||
// The two session alerts. Both XrayVPNService (:RunSoLibXrayDaemon) and
|
||||
// MainActivity post them, sharing ids so a second post replaces. Separate from
|
||||
// the foreground-service notification (id 1, IMPORTANCE_LOW): these must be
|
||||
// noticed, and must be dismissible.
|
||||
object RevoltAlerts {
|
||||
|
||||
const val CHANNEL_ID = "REVOLT_VPN_ALERTS"
|
||||
const val WARNING_NOTIFICATION_ID = 2
|
||||
const val DISCONNECTED_NOTIFICATION_ID = 3
|
||||
|
||||
// How long before the session deadline the warning fires.
|
||||
const val WARNING_LEAD_MS = 5 * 60 * 1000L
|
||||
|
||||
private const val TAG = "RevoltAlerts"
|
||||
@@ -97,8 +90,7 @@ object RevoltAlerts {
|
||||
.setSmallIcon(icon)
|
||||
.setAutoCancel(true)
|
||||
.setOngoing(false)
|
||||
// Both processes can post the disconnected alert; the second
|
||||
// post replaces the first and must not sound again.
|
||||
// A replacing post must not sound again.
|
||||
.setOnlyAlertOnce(true)
|
||||
|
||||
launchIntent(context)?.let { builder.setContentIntent(it) }
|
||||
@@ -118,9 +110,7 @@ object RevoltAlerts {
|
||||
private fun manager(context: Context): NotificationManager? =
|
||||
context.getSystemService(Context.NOTIFICATION_SERVICE) as? NotificationManager
|
||||
|
||||
// Importance is fixed when the channel is first created, so this asks for
|
||||
// HIGH up front — a session alert the user never sees is the whole bug
|
||||
// these notifications exist to fix.
|
||||
// Importance is fixed at creation, so ask for HIGH up front.
|
||||
private fun ensureChannel(manager: NotificationManager) {
|
||||
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) return
|
||||
if (manager.getNotificationChannel(CHANNEL_ID) != null) return
|
||||
|
||||
Reference in new issue
Block a user