Initial commit: watch-together phases 0-4 + presence hardening, internet-tested
This commit is contained in:
foxyz committed
commit
427d851a5b
101 files changed
+11326
No files matched your search
@@ -0,0 +1,213 @@
|
||||
import 'dart:io';
|
||||
import 'dart:typed_data';
|
||||
|
||||
import 'package:relic/relic.dart';
|
||||
import 'package:sync_relay_core/core.dart';
|
||||
|
||||
import 'session.dart';
|
||||
|
||||
class MediaLog {
|
||||
final String method;
|
||||
final String path;
|
||||
final String? rangeHeader;
|
||||
final int status;
|
||||
final int bytesWritten;
|
||||
final int durationMs;
|
||||
const MediaLog({
|
||||
required this.method,
|
||||
required this.path,
|
||||
required this.rangeHeader,
|
||||
required this.status,
|
||||
required this.bytesWritten,
|
||||
required this.durationMs,
|
||||
});
|
||||
|
||||
@override
|
||||
String toString() =>
|
||||
'$method $path range=${rangeHeader ?? '-'} -> $status bytes=$bytesWritten ${durationMs}ms';
|
||||
}
|
||||
|
||||
class MediaResolution {
|
||||
final int status;
|
||||
final Map<String, String> headers;
|
||||
final int start;
|
||||
final int? end;
|
||||
const MediaResolution({
|
||||
required this.status,
|
||||
required this.headers,
|
||||
required this.start,
|
||||
required this.end,
|
||||
});
|
||||
|
||||
int contentLength(int size) => (end ?? (size - 1)) - start + 1;
|
||||
}
|
||||
|
||||
MediaResolution resolveMediaRequest({
|
||||
required String? rangeHeader,
|
||||
required int size,
|
||||
required String filename,
|
||||
MediaGate gate = MediaGate.ok,
|
||||
}) {
|
||||
Map<String, String> base(String contentType) => {
|
||||
'accept-ranges': 'bytes',
|
||||
'content-type': contentType,
|
||||
};
|
||||
final contentType = contentTypeForFile(filename);
|
||||
switch (gate) {
|
||||
case MediaGate.gone:
|
||||
return MediaResolution(status: 410, headers: base(contentType), start: 0, end: 0);
|
||||
case MediaGate.unauthorized:
|
||||
return MediaResolution(status: 401, headers: base(contentType), start: 0, end: 0);
|
||||
case MediaGate.forbidden:
|
||||
return MediaResolution(status: 403, headers: base(contentType), start: 0, end: 0);
|
||||
case MediaGate.offline:
|
||||
return MediaResolution(
|
||||
status: 503,
|
||||
headers: {...base(contentType), 'retry-after': '2'},
|
||||
start: 0,
|
||||
end: 0);
|
||||
case MediaGate.ok:
|
||||
break;
|
||||
}
|
||||
if (rangeHeader == null || rangeHeader.trim().isEmpty) {
|
||||
return MediaResolution(
|
||||
status: 200,
|
||||
headers: {...base(contentType), 'content-length': '$size'},
|
||||
start: 0,
|
||||
end: null,
|
||||
);
|
||||
}
|
||||
final parsed = RangeRequest.parse(rangeHeader, size);
|
||||
if (parsed == null) {
|
||||
return MediaResolution(
|
||||
status: 416,
|
||||
headers: {...base(contentType), 'content-range': 'bytes */$size'},
|
||||
start: 0,
|
||||
end: 0,
|
||||
);
|
||||
}
|
||||
final end = parsed.end ?? size - 1;
|
||||
return MediaResolution(
|
||||
status: 206,
|
||||
headers: {
|
||||
...base(contentType),
|
||||
'content-range': 'bytes ${parsed.start}-$end/$size',
|
||||
'content-length': '${end - parsed.start + 1}',
|
||||
},
|
||||
start: parsed.start,
|
||||
end: parsed.end,
|
||||
);
|
||||
}
|
||||
|
||||
void mountMediaRoute(RelicApp app, File file,
|
||||
{String route = '/m/file', void Function(MediaLog log)? onLog}) {
|
||||
app.get(route, (final req) async {
|
||||
final stopwatch = Stopwatch()..start();
|
||||
final size = await file.length();
|
||||
final name = file.path.split(Platform.pathSeparator).last;
|
||||
final typed = req.headers.range;
|
||||
String? rangeHeader;
|
||||
if (typed != null && typed.ranges.isNotEmpty) {
|
||||
final r = typed.ranges.first;
|
||||
rangeHeader = '${typed.unit}=${r.start?.toString() ?? ''}-${r.end?.toString() ?? ''}';
|
||||
}
|
||||
final res = resolveMediaRequest(rangeHeader: rangeHeader, size: size, filename: name);
|
||||
void log(int bytes) => onLog?.call(MediaLog(
|
||||
method: req.method.name,
|
||||
path: route,
|
||||
rangeHeader: rangeHeader,
|
||||
status: res.status,
|
||||
bytesWritten: bytes,
|
||||
durationMs: stopwatch.elapsedMilliseconds,
|
||||
));
|
||||
if (res.status != 200 && res.status != 206) {
|
||||
log(0);
|
||||
return Response(
|
||||
res.status,
|
||||
body: Body.fromString('status ${res.status}'),
|
||||
headers: Headers.build((h) {
|
||||
res.headers.forEach((k, v) => h[k] = [v]);
|
||||
}),
|
||||
);
|
||||
}
|
||||
final end = res.end ?? size - 1;
|
||||
final byteCount = end - res.start + 1;
|
||||
final stream = file.openRead(res.start, end + 1).map((c) => Uint8List.fromList(c));
|
||||
log(byteCount);
|
||||
return Response(
|
||||
res.status,
|
||||
body: Body.fromDataStream(stream, contentLength: byteCount),
|
||||
headers: Headers.build((h) {
|
||||
res.headers.forEach((k, v) => h[k] = [v]);
|
||||
}),
|
||||
);
|
||||
});
|
||||
}
|
||||
|
||||
Response _gatedResponse(MediaResolution res) => Response(
|
||||
res.status,
|
||||
body: Body.fromString('status ${res.status}'),
|
||||
headers: Headers.build((h) {
|
||||
res.headers.forEach((k, v) => h[k] = [v]);
|
||||
}),
|
||||
);
|
||||
|
||||
void mountSessionMediaRoute(
|
||||
RelicApp app,
|
||||
SessionMap sessions, {
|
||||
String pattern = '/m/:sid/:token/:name',
|
||||
void Function(String token, MediaLog log)? onLog,
|
||||
}) {
|
||||
app.get(pattern, (final req) async {
|
||||
final stopwatch = Stopwatch()..start();
|
||||
final sid = req.pathParameters.raw[#sid] ?? '';
|
||||
final token = req.pathParameters.raw[#token] ?? '';
|
||||
final session = sessions.get(sid);
|
||||
if (session == null) {
|
||||
return _gatedResponse(resolveMediaRequest(
|
||||
rangeHeader: null, size: 1, filename: 'x', gate: MediaGate.gone));
|
||||
}
|
||||
final gate = session.gate(token);
|
||||
if (gate != MediaGate.ok) {
|
||||
return _gatedResponse(
|
||||
resolveMediaRequest(rangeHeader: null, size: 1, filename: 'x', gate: gate));
|
||||
}
|
||||
final media = session.media;
|
||||
final file = media?.file;
|
||||
if (media == null || file == null) {
|
||||
return _gatedResponse(resolveMediaRequest(
|
||||
rangeHeader: null, size: 1, filename: 'x', gate: MediaGate.offline));
|
||||
}
|
||||
final size = media.size;
|
||||
final typed = req.headers.range;
|
||||
String? rangeHeader;
|
||||
if (typed != null && typed.ranges.isNotEmpty) {
|
||||
final r = typed.ranges.first;
|
||||
rangeHeader = '${typed.unit}=${r.start?.toString() ?? ''}-${r.end?.toString() ?? ''}';
|
||||
}
|
||||
final res = resolveMediaRequest(rangeHeader: rangeHeader, size: size, filename: media.name);
|
||||
if (res.status != 200 && res.status != 206) {
|
||||
return _gatedResponse(res);
|
||||
}
|
||||
final end = res.end ?? size - 1;
|
||||
final byteCount = end - res.start + 1;
|
||||
session.addBytes(token, byteCount);
|
||||
final shortToken = token.length > 4 ? '…${token.substring(token.length - 4)}' : token;
|
||||
onLog?.call(token, MediaLog(
|
||||
method: req.method.name,
|
||||
path: '/m/$sid/$shortToken/${media.name}',
|
||||
rangeHeader: rangeHeader,
|
||||
status: res.status,
|
||||
bytesWritten: byteCount,
|
||||
durationMs: stopwatch.elapsedMilliseconds,
|
||||
));
|
||||
final stream = file.openRead(res.start, end + 1).map((c) => Uint8List.fromList(c));
|
||||
return Response(
|
||||
res.status,
|
||||
body: Body.fromDataStream(stream, contentLength: byteCount),
|
||||
headers: Headers.build((h) {
|
||||
res.headers.forEach((k, v) => h[k] = [v]);
|
||||
}),
|
||||
);
|
||||
});
|
||||
}
|
||||
@@ -0,0 +1,297 @@
|
||||
import 'dart:async';
|
||||
import 'dart:convert';
|
||||
|
||||
import 'package:relic/relic.dart';
|
||||
import 'package:sync_relay_core/core.dart';
|
||||
import 'package:web_socket/web_socket.dart';
|
||||
|
||||
import 'session.dart';
|
||||
|
||||
final _hubLog = createLogger('room_hub');
|
||||
|
||||
class RoomHub {
|
||||
final SessionMap sessions;
|
||||
final String expectedSecret;
|
||||
final RoomEngine engine;
|
||||
final Map<String, RelicWebSocket> sockets = {};
|
||||
|
||||
RoomHub(this.sessions, this.expectedSecret, {RoomEngine? engine})
|
||||
: engine = engine ?? RoomEngine();
|
||||
|
||||
Session get session => sessions.getOrCreate('default', expectedSecret);
|
||||
|
||||
void broadcastRoom() {
|
||||
final raw = jsonEncode(engine.broadcast().toJson());
|
||||
for (final ws in sockets.values.toList()) {
|
||||
ws.trySendText(raw);
|
||||
}
|
||||
}
|
||||
|
||||
void broadcastFeed() {
|
||||
for (final feed in engine.feed.drain()) {
|
||||
final raw = jsonEncode(feed.toJson());
|
||||
for (final ws in sockets.values.toList()) {
|
||||
ws.trySendText(raw);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void dropSilentSockets() {
|
||||
for (final token in engine.sweepDropped()) {
|
||||
final ws = sockets[token];
|
||||
if (ws != null) unawaited(ws.tryClose());
|
||||
forgetSocket(token);
|
||||
}
|
||||
}
|
||||
|
||||
void sweepClosedSockets() {
|
||||
for (final entry in sockets.entries.toList()) {
|
||||
var closed = false;
|
||||
try {
|
||||
closed = entry.value.isClosed;
|
||||
} catch (_) {
|
||||
closed = true;
|
||||
}
|
||||
if (closed) forgetSocket(entry.key);
|
||||
}
|
||||
}
|
||||
|
||||
Future<void> closeAllSockets() async {
|
||||
final all = sockets.values.toList();
|
||||
sockets.clear();
|
||||
for (final ws in all) {
|
||||
try {
|
||||
await ws.tryClose();
|
||||
} catch (_) {}
|
||||
}
|
||||
}
|
||||
|
||||
void broadcastChat(String from, String text) {
|
||||
final clean = text.length > RelayConstants.maxChatLength
|
||||
? text.substring(0, RelayConstants.maxChatLength)
|
||||
: text;
|
||||
final raw = jsonEncode(
|
||||
ChatMessage(text: clean).toJson()..addAll({'from': from}));
|
||||
for (final ws in sockets.values.toList()) {
|
||||
ws.trySendText(raw);
|
||||
}
|
||||
engine.feed.add(
|
||||
FeedMessage(actor: from, action: 'chat', at: engine.now));
|
||||
broadcastFeed();
|
||||
}
|
||||
|
||||
void changed() {
|
||||
broadcastRoom();
|
||||
broadcastFeed();
|
||||
}
|
||||
|
||||
void forgetSocket(String token) {
|
||||
engine.applyLeave(token);
|
||||
final viewer = session.tokens[token];
|
||||
if (viewer != null && !viewer.kicked) session.tokens.remove(token);
|
||||
sockets.remove(token);
|
||||
changed();
|
||||
}
|
||||
|
||||
Future<void> kickById(String targetId, String reason) async {
|
||||
final member = engine.byId(targetId);
|
||||
if (member == null) throw const AuthException('unknown kick target');
|
||||
await session.kick(member.token, reason: reason);
|
||||
}
|
||||
}
|
||||
|
||||
void wsErr(RelicWebSocket ws, String message) {
|
||||
ws.trySendText(jsonEncode({'t': 'err', 'message': message}));
|
||||
}
|
||||
|
||||
void mountSyncRoute(
|
||||
RelicApp app,
|
||||
RoomHub hub,
|
||||
String Function(String sid, String token, SessionMedia? media) urlBuilder,
|
||||
) {
|
||||
app.get('/sync', (final req) {
|
||||
return WebSocketUpgrade((final ws) async {
|
||||
ws.pingInterval = Duration(seconds: RelayConstants.pingIntervalSecs);
|
||||
final firstText = Completer<String>();
|
||||
String? token;
|
||||
var welcomed = false;
|
||||
late StreamSubscription<WebSocketEvent> sub;
|
||||
Future<void> close() async {
|
||||
try {
|
||||
await sub.cancel();
|
||||
} catch (_) {}
|
||||
await ws.tryClose();
|
||||
}
|
||||
|
||||
void handleIntent(String text) {
|
||||
final session = hub.session;
|
||||
final viewer = token == null ? null : session.tokens[token];
|
||||
viewer?.touch();
|
||||
Map<String, Object?> decoded;
|
||||
try {
|
||||
final parsed = jsonDecode(text);
|
||||
if (parsed is! Map) return;
|
||||
decoded = Map<String, Object?>.from(parsed);
|
||||
} catch (_) {
|
||||
return;
|
||||
}
|
||||
final type = decoded['t'];
|
||||
try {
|
||||
switch (type) {
|
||||
case 'ready':
|
||||
if (token == null) return;
|
||||
final intent = ReadyIntent.fromJson(decoded);
|
||||
hub.engine.applyReady(token, intent.ready, source: intent.source);
|
||||
hub.changed();
|
||||
case 'force':
|
||||
if (token == null) return;
|
||||
final intent = ForceIntent.fromJson(decoded);
|
||||
hub.engine.applyForce(token, intent.target, intent.ready);
|
||||
hub.changed();
|
||||
case 'seek':
|
||||
if (token == null) return;
|
||||
final intent = SeekIntent.fromJson(decoded);
|
||||
hub.engine.applySeek(token, intent.position);
|
||||
hub.changed();
|
||||
case 'swap':
|
||||
if (token == null) return;
|
||||
final intent = SwapIntent.fromJson(decoded);
|
||||
hub.engine.applySwap(token, intent.media);
|
||||
final current = session.media;
|
||||
if (current?.file != null &&
|
||||
current!.name == intent.media.name &&
|
||||
current.size == intent.media.size) {
|
||||
session.media = SessionMedia(
|
||||
name: current.name,
|
||||
size: current.size,
|
||||
duration: intent.media.duration,
|
||||
url: intent.media.url,
|
||||
file: current.file,
|
||||
mediaId: hub.engine.mediaId);
|
||||
} else {
|
||||
session.media = SessionMedia(
|
||||
name: intent.media.name,
|
||||
size: intent.media.size,
|
||||
duration: intent.media.duration,
|
||||
url: intent.media.url,
|
||||
mediaId: hub.engine.mediaId);
|
||||
}
|
||||
hub.changed();
|
||||
case 'report':
|
||||
if (token == null) return;
|
||||
final report = ReportMessage.fromJson(decoded);
|
||||
hub.engine.applyReport(
|
||||
token, report.position, report.buffered, report.eventId);
|
||||
hub.broadcastRoom();
|
||||
case 'chat':
|
||||
final chat = ChatMessage.fromJson(decoded);
|
||||
hub.broadcastChat(viewer?.name ?? '?', chat.text);
|
||||
case 'kick':
|
||||
final kickReq = KickRequest.fromJson(decoded);
|
||||
final member = hub.engine.byId(kickReq.target);
|
||||
if (member == null) {
|
||||
wsErr(ws, 'unknown kick target');
|
||||
return;
|
||||
}
|
||||
final by = viewer?.name ?? '?';
|
||||
unawaited(hub.session.kick(member.token,
|
||||
reason: kickReq.reason.isEmpty
|
||||
? 'kicked by $by'
|
||||
: kickReq.reason));
|
||||
}
|
||||
} catch (_) {
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
sub = ws.events.listen(
|
||||
(event) {
|
||||
if (event is! TextDataReceived) return;
|
||||
if (!firstText.isCompleted) {
|
||||
firstText.complete(event.text);
|
||||
} else if (welcomed) {
|
||||
handleIntent(event.text);
|
||||
}
|
||||
},
|
||||
onError: (_) {
|
||||
if (token != null) hub.forgetSocket(token);
|
||||
},
|
||||
onDone: () {
|
||||
if (!firstText.isCompleted) {
|
||||
firstText.completeError(StateError('closed before hello'));
|
||||
} else if (token != null) {
|
||||
hub.forgetSocket(token);
|
||||
}
|
||||
},
|
||||
);
|
||||
String raw;
|
||||
try {
|
||||
raw = await firstText.future.timeout(const Duration(seconds: 10));
|
||||
} catch (_) {
|
||||
await close();
|
||||
return;
|
||||
}
|
||||
HelloMessage hello;
|
||||
try {
|
||||
final decoded = jsonDecode(raw);
|
||||
if (decoded is! Map) throw const ProtocolException('hello must be an object');
|
||||
hello = HelloMessage.fromJson(Map<String, Object?>.from(decoded));
|
||||
} catch (e) {
|
||||
_hubLog.warning('reject: bad hello: $e');
|
||||
wsErr(ws, 'bad hello: $e');
|
||||
await close();
|
||||
return;
|
||||
}
|
||||
if (hello.proto != RelayConstants.protoVersion) {
|
||||
_hubLog.warning(
|
||||
'reject ${hello.user.name}: proto mismatch: got ${hello.proto}, want ${RelayConstants.protoVersion}');
|
||||
wsErr(ws, 'proto mismatch: got ${hello.proto}, want ${RelayConstants.protoVersion}');
|
||||
await close();
|
||||
return;
|
||||
}
|
||||
final session = hub.session;
|
||||
if (hello.secret != session.secret) {
|
||||
_hubLog.warning('reject ${hello.user.name}: wrong secret');
|
||||
wsErr(ws, 'wrong secret');
|
||||
await close();
|
||||
return;
|
||||
}
|
||||
try {
|
||||
token = session.issueToken(hello.user.name, hello.user.avatar);
|
||||
} catch (e) {
|
||||
_hubLog.warning('reject ${hello.user.name}: $e');
|
||||
wsErr(ws, 'rejected: $e');
|
||||
await close();
|
||||
return;
|
||||
}
|
||||
final memberId = hub.engine.applyJoin(token, hello.user.name, hello.user.avatar);
|
||||
final activeToken = token;
|
||||
hub.sockets[activeToken] = ws;
|
||||
session.tokens[activeToken]!.onKick = (reason) async {
|
||||
ws.trySendText(jsonEncode(KickedMessage(reason: reason).toJson()));
|
||||
await Future.delayed(const Duration(milliseconds: 200));
|
||||
await ws.tryClose();
|
||||
hub.forgetSocket(activeToken);
|
||||
};
|
||||
final media = session.media;
|
||||
final welcome = WelcomeMessage(
|
||||
token: activeToken,
|
||||
memberId: memberId,
|
||||
mediaUrl: media?.file != null ? urlBuilder('default', activeToken, media) : media?.url,
|
||||
state: hub.engine.broadcast().toJson(),
|
||||
);
|
||||
try {
|
||||
ws.sendText(jsonEncode(welcome.toJson()));
|
||||
} catch (_) {
|
||||
await close();
|
||||
return;
|
||||
}
|
||||
welcomed = true;
|
||||
_hubLog.info('join ${hello.user.name} ($memberId)');
|
||||
hub.changed();
|
||||
try {
|
||||
await sub.asFuture();
|
||||
} catch (_) {}
|
||||
});
|
||||
});
|
||||
}
|
||||
@@ -0,0 +1,113 @@
|
||||
import 'dart:async';
|
||||
import 'dart:convert';
|
||||
import 'dart:io';
|
||||
|
||||
import 'package:logging/logging.dart' as pkg_logging;
|
||||
import 'package:relic/relic.dart';
|
||||
import 'package:sync_relay_core/core.dart';
|
||||
|
||||
import 'media_endpoint.dart';
|
||||
import 'room_hub.dart';
|
||||
import 'session.dart';
|
||||
|
||||
class RoomServer {
|
||||
final AppConfig config;
|
||||
final pkg_logging.Logger _log = createLogger('room_server');
|
||||
final RelicApp _app = RelicApp();
|
||||
final SessionMap sessions = SessionMap();
|
||||
late final RoomHub hub;
|
||||
RelicServer? _server;
|
||||
DateTime? _startedAt;
|
||||
Timer? _heartbeat;
|
||||
bool _routesMounted = false;
|
||||
|
||||
RoomServer(this.config) {
|
||||
hub = RoomHub(sessions, config.secret);
|
||||
}
|
||||
|
||||
bool get isRunning => _server != null;
|
||||
int get boundPort => _server?.port ?? config.port;
|
||||
Session get session => sessions.getOrCreate('default', config.secret);
|
||||
|
||||
Future<bool> setLocalFile(String path) async {
|
||||
final file = File(path);
|
||||
if (!await file.exists()) return false;
|
||||
final name = file.path.split(Platform.pathSeparator).last;
|
||||
final size = await file.length();
|
||||
session.media = SessionMedia(name: name, size: size, duration: 0, file: file);
|
||||
hub.engine.media = HelloMedia(name: name, size: size, duration: 0);
|
||||
return true;
|
||||
}
|
||||
|
||||
void _mountRoutes() {
|
||||
if (_routesMounted) return;
|
||||
_routesMounted = true;
|
||||
_app.get('/health', (final req) {
|
||||
final s = sessions.get('default');
|
||||
final viewers = s?.tokens.length ?? 0;
|
||||
final bytes = s?.totalBytesServed ?? 0;
|
||||
final uptime = _startedAt == null ? 0 : DateTime.now().difference(_startedAt!).inSeconds;
|
||||
return Response.ok(
|
||||
body: Body.fromString(jsonEncode({
|
||||
'ok': true,
|
||||
'room': config.name,
|
||||
'proto': RelayConstants.protoVersion,
|
||||
'viewers': viewers,
|
||||
'bytesServed': bytes,
|
||||
'uptimeSecs': uptime,
|
||||
'media': s?.media?.name,
|
||||
'transport': hub.engine.transport.name,
|
||||
'eventId': hub.engine.eventId,
|
||||
})),
|
||||
);
|
||||
});
|
||||
mountSessionMediaRoute(_app, sessions);
|
||||
mountSyncRoute(_app, hub, (sid, token, media) {
|
||||
final name = Uri.encodeComponent(media?.name ?? 'file');
|
||||
return 'http://${config.advertiseHost}:$boundPort/m/$sid/$token/$name';
|
||||
});
|
||||
_app.fallback = (final req) => Response.notFound(
|
||||
body: Body.fromString('not found'),
|
||||
);
|
||||
}
|
||||
|
||||
Future<void> start() async {
|
||||
if (_server != null) return;
|
||||
final s = session;
|
||||
if (config.mediaPath.isNotEmpty) {
|
||||
final file = File(config.mediaPath);
|
||||
if (await file.exists()) {
|
||||
final name = file.path.split(Platform.pathSeparator).last;
|
||||
final size = await file.length();
|
||||
s.media = SessionMedia(name: name, size: size, duration: 0, file: file);
|
||||
hub.engine.media = HelloMedia(name: name, size: size, duration: 0);
|
||||
} else {
|
||||
_log.warning('media file not found: ${config.mediaPath}');
|
||||
}
|
||||
}
|
||||
_mountRoutes();
|
||||
_server = await _app.serve(
|
||||
address: InternetAddress.anyIPv4,
|
||||
port: config.port,
|
||||
);
|
||||
_startedAt = DateTime.now();
|
||||
_heartbeat = Timer.periodic(const Duration(seconds: 1), (_) {
|
||||
hub.engine.sweepStale();
|
||||
hub.sweepClosedSockets();
|
||||
hub.dropSilentSockets();
|
||||
hub.broadcastRoom();
|
||||
hub.broadcastFeed();
|
||||
});
|
||||
_log.info('room "${config.name}" listening on $boundPort');
|
||||
}
|
||||
|
||||
Future<void> stop() async {
|
||||
if (_server == null) return;
|
||||
_heartbeat?.cancel();
|
||||
_heartbeat = null;
|
||||
await hub.closeAllSockets();
|
||||
await _app.close();
|
||||
_server = null;
|
||||
_log.info('room "${config.name}" stopped');
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,95 @@
|
||||
import 'dart:io';
|
||||
import 'dart:math';
|
||||
|
||||
import 'package:sync_relay_core/core.dart';
|
||||
|
||||
enum MediaGate { ok, gone, unauthorized, forbidden, offline }
|
||||
|
||||
class ViewerToken {
|
||||
final String token;
|
||||
final String name;
|
||||
final String avatar;
|
||||
bool kicked = false;
|
||||
int bytesServed = 0;
|
||||
DateTime lastSeen;
|
||||
Future<void> Function(String reason)? onKick;
|
||||
ViewerToken({required this.token, required this.name, this.avatar = ''})
|
||||
: lastSeen = DateTime.now().toUtc();
|
||||
|
||||
bool isStale(Duration timeout, [DateTime? now]) =>
|
||||
(now ?? DateTime.now().toUtc()).difference(lastSeen) > timeout;
|
||||
|
||||
void touch([DateTime? now]) => lastSeen = now ?? DateTime.now().toUtc();
|
||||
}
|
||||
|
||||
class SessionMedia {
|
||||
final String name;
|
||||
final int size;
|
||||
final double duration;
|
||||
final String? url;
|
||||
final File? file;
|
||||
final int mediaId;
|
||||
const SessionMedia({
|
||||
required this.name,
|
||||
required this.size,
|
||||
required this.duration,
|
||||
this.url,
|
||||
this.file,
|
||||
this.mediaId = 1,
|
||||
});
|
||||
}
|
||||
|
||||
class Session {
|
||||
final String id;
|
||||
final String secret;
|
||||
final Map<String, ViewerToken> tokens = {};
|
||||
SessionMedia? media;
|
||||
final _random = Random.secure();
|
||||
|
||||
Session({required this.id, required this.secret});
|
||||
|
||||
String issueToken(String name, String avatar) {
|
||||
if (avatar.length > RelayConstants.maxAvatarBytes) {
|
||||
throw const AuthException('avatar too large');
|
||||
}
|
||||
final trimmed = name.trim();
|
||||
final cleanName = trimmed.isEmpty
|
||||
? '?'
|
||||
: trimmed.substring(
|
||||
0, trimmed.length.clamp(0, RelayConstants.maxNameLength));
|
||||
final bytes = List<int>.generate(16, (_) => _random.nextInt(256));
|
||||
final token = bytes.map((b) => b.toRadixString(16).padLeft(2, '0')).join();
|
||||
tokens[token] = ViewerToken(token: token, name: cleanName, avatar: avatar);
|
||||
return token;
|
||||
}
|
||||
|
||||
MediaGate gate(String? token) {
|
||||
if (token == null || !tokens.containsKey(token)) return MediaGate.unauthorized;
|
||||
if (tokens[token]!.kicked) return MediaGate.forbidden;
|
||||
return MediaGate.ok;
|
||||
}
|
||||
|
||||
Future<void> kick(String token, {String reason = ''}) async {
|
||||
final viewer = tokens[token];
|
||||
if (viewer == null) throw const AuthException('unknown token');
|
||||
viewer.kicked = true;
|
||||
await viewer.onKick?.call(reason);
|
||||
}
|
||||
|
||||
void addBytes(String? token, int n) {
|
||||
if (token != null) tokens[token]?.bytesServed += n;
|
||||
}
|
||||
|
||||
int get totalBytesServed => tokens.values.fold(0, (a, v) => a + v.bytesServed);
|
||||
}
|
||||
|
||||
class SessionMap {
|
||||
final Map<String, Session> _sessions = {};
|
||||
|
||||
Session getOrCreate(String id, String secret) =>
|
||||
_sessions.putIfAbsent(id, () => Session(id: id, secret: secret));
|
||||
|
||||
Session? get(String id) => _sessions[id];
|
||||
|
||||
void drop(String id) => _sessions.remove(id);
|
||||
}
|
||||
Reference in new issue
Block a user