Added support for authentication codes for the VM service. (#30857)

* Added support for authentication codes for the VM service.

Previously, a valid web socket connection would use the following URI:

`ws://127.0.0.1/ws`

Now, by default, the VM service requires a connection to be made with a
URI similar to the following:

`ws://127.0.0.1:8181/Ug_U0QVsqFs=/ws`

where `Ug_U0QVsqFs` is an authentication code generated and shared by
the
service.

This behavior can be disabled with the `--disable-service-auth-codes`
flag.

bin/internal/engine.version

-4b9966f5cb412a73fa50462b3aee9082f436a62a
+ca31a7c57bada458fa7f5c0d3f36bc1af4ccbc79

dev/devicelab/bin/tasks/commands_test.dart

@@ -26,7 +26,7 @@ void main() {
       print('run: starting...');
       final Process run = await startProcess(
         path.join(flutterDirectory.path, 'bin', 'flutter'),
-        <String>['run', '--verbose', '-d', device.deviceId, 'lib/commands.dart'],
+        <String>['run', '--verbose', '--disable-service-auth-codes', '-d', device.deviceId, 'lib/commands.dart'],
       );
       final StreamController<String> stdout = StreamController<String>.broadcast();
       run.stdout

dev/devicelab/bin/tasks/named_isolates_test.dart

@@ -21,7 +21,8 @@ void main() {
     section('Compile and run the tester app');
     Completer<void> firstNameFound = Completer<void>();
     Completer<void> secondNameFound = Completer<void>();
-    final Process runProcess = await _run(device: device, command: <String>['run'], stdoutListener: (String line) {
+    final Process runProcess = await _run(device: device, command:
+        <String>['run', '--disable-service-auth-codes'], stdoutListener: (String line) {
       if (line.contains(_kFirstIsolateName)) {
         firstNameFound.complete();
       } else if (line.contains(_kSecondIsolateName)) {

dev/devicelab/bin/tasks/routing_test.dart

@@ -34,7 +34,7 @@ void main() {
       print('run: starting...');
       final Process run = await startProcess(
         path.join(flutterDirectory.path, 'bin', 'flutter'),
-        <String>['run', '--verbose', '-d', device.deviceId, '--route', '/smuggle-it', 'lib/route.dart'],
+        <String>['run', '--verbose', '--disable-service-auth-codes', '-d', device.deviceId, '--route', '/smuggle-it', 'lib/route.dart'],
       );
       run.stdout
         .transform<String>(utf8.decoder)

dev/devicelab/bin/tasks/service_extensions_test.dart

@@ -26,7 +26,7 @@ void main() {
       print('run: starting...');
       final Process run = await startProcess(
         path.join(flutterDirectory.path, 'bin', 'flutter'),
-        <String>['run', '--verbose', '-d', device.deviceId, 'lib/main.dart'],
+        <String>['run', '--verbose', '--disable-service-auth-codes', '-d', device.deviceId, 'lib/main.dart'],
       );
       run.stdout
           .transform<String>(utf8.decoder)

dev/devicelab/lib/framework/runner.dart

@@ -41,16 +41,16 @@ Future<Map<String, dynamic>> runTask(String taskName, { bool silent = false }) a
     runnerFinished = true;
   });
 
-  final Completer<int> port = Completer<int>();
+  final Completer<Uri> uri = Completer<Uri>();
 
   final StreamSubscription<String> stdoutSub = runner.stdout
       .transform<String>(const Utf8Decoder())
       .transform<String>(const LineSplitter())
       .listen((String line) {
-    if (!port.isCompleted) {
-      final int portValue = parseServicePort(line, prefix: 'Observatory listening on ');
-      if (portValue != null)
-        port.complete(portValue);
+    if (!uri.isCompleted) {
+      final Uri serviceUri = parseServiceUri(line, prefix: 'Observatory listening on ');
+      if (serviceUri != null)
+        uri.complete(serviceUri);
     }
     if (!silent) {
       stdout.writeln('[$taskName] [STDOUT] $line');
@@ -66,7 +66,7 @@ Future<Map<String, dynamic>> runTask(String taskName, { bool silent = false }) a
 
   String waitingFor = 'connection';
   try {
-    final VMIsolateRef isolate = await _connectToRunnerIsolate(await port.future);
+    final VMIsolateRef isolate = await _connectToRunnerIsolate(await uri.future);
     waitingFor = 'task completion';
     final Map<String, dynamic> taskResult =
         await isolate.invokeExtension('ext.cocoonRunTask').timeout(taskTimeoutWithGracePeriod);
@@ -88,8 +88,15 @@ Future<Map<String, dynamic>> runTask(String taskName, { bool silent = false }) a
   }
 }
 
-Future<VMIsolateRef> _connectToRunnerIsolate(int vmServicePort) async {
-  final String url = 'ws://localhost:$vmServicePort/ws';
+Future<VMIsolateRef> _connectToRunnerIsolate(Uri vmServiceUri) async {
+  final List<String> pathSegments = <String>[];
+  if (vmServiceUri.pathSegments.isNotEmpty) {
+    // Add authentication code.
+    pathSegments.add(vmServiceUri.pathSegments[0]);
+  }
+  pathSegments.add('ws');
+  final String url = vmServiceUri.replace(scheme: 'ws', pathSegments:
+      pathSegments).toString();
   final DateTime started = DateTime.now();
 
   // TODO(yjbanov): due to lack of imagination at the moment the handshake with
@@ -163,4 +170,4 @@ Future<void> cleanupSystem() async {
   } else {
     print('Could not determine JAVA_HOME; not shutting down Gradle.');
   }
-}
\ No newline at end of file
+}

dev/devicelab/lib/framework/utils.dart

@@ -529,19 +529,43 @@ String extractCloudAuthTokenArg(List<String> rawArgs) {
   return token;
 }
 
+final RegExp _obsRegExp =
+  RegExp('An Observatory debugger .* is available at: ');
+final RegExp _obsPortRegExp = RegExp('(\\S+:(\\d+)/\\S*)\$');
+final RegExp _obsUriRegExp = RegExp('((http|\/\/)[a-zA-Z0-9:/=_\\-\.\\[\\]]+)');
+
 /// Tries to extract a port from the string.
 ///
 /// The `prefix`, if specified, is a regular expression pattern and must not contain groups.
-///
-/// The `multiLine` flag should be set to true if `line` is actually a buffer of many lines.
+/// `prefix` defaults to the RegExp: `An Observatory debugger .* is available at: `.
 int parseServicePort(String line, {
-  String prefix = 'An Observatory debugger .* is available at: ',
-  bool multiLine = false,
+  Pattern prefix,
 }) {
-  // e.g. "An Observatory debugger and profiler on ... is available at: http://127.0.0.1:8100/"
-  final RegExp pattern = RegExp('$prefix(\\S+:(\\d+)/\\S*)\$', multiLine: multiLine);
-  final Match match = pattern.firstMatch(line);
-  return match == null ? null : int.parse(match.group(2));
+  prefix ??= _obsRegExp;
+  final Match prefixMatch = prefix.matchAsPrefix(line);
+  if (prefixMatch == null) {
+    return null;
+  }
+  final List<Match> matches =
+    _obsPortRegExp.allMatches(line, prefixMatch.end).toList();
+  return matches.isEmpty ? null : int.parse(matches[0].group(2));
+}
+
+/// Tries to extract a Uri from the string.
+///
+/// The `prefix`, if specified, is a regular expression pattern and must not contain groups.
+/// `prefix` defaults to the RegExp: `An Observatory debugger .* is available at: `.
+Uri parseServiceUri(String line, {
+  Pattern prefix,
+}) {
+  prefix ??= _obsRegExp;
+  final Match prefixMatch = prefix.matchAsPrefix(line);
+  if (prefixMatch == null) {
+    return null;
+  }
+  final List<Match> matches =
+    _obsUriRegExp.allMatches(line, prefixMatch.end).toList();
+  return matches.isEmpty ? null : Uri.parse(matches[0].group(0));
 }
 
 /// If FLUTTER_ENGINE environment variable is set then we need to pass

dev/devicelab/test/utils_test.dart

@@ -16,4 +16,21 @@ void main() {
       expect(grep(RegExp('^b'), from: 'ab\nba'), <String>['ba']);
     });
   });
+
+  group('parse service', () {
+    const String badOutput = 'No uri here';
+    const String sampleOutput = 'An Observatory debugger and profiler on '
+      'Pixel 3 XL is available at: http://127.0.0.1:9090/LpjUpsdEjqI=/';
+
+    test('uri', () {
+        expect(parseServiceUri(sampleOutput),
+          Uri.parse('http://127.0.0.1:9090/LpjUpsdEjqI=/'));
+      expect(parseServiceUri(badOutput), null);
+    });
+
+    test('port', () {
+      expect(parseServicePort(sampleOutput), 9090);
+      expect(parseServicePort(badOutput), null);
+    });
+  });
 }

packages/flutter_tools/lib/src/android/android_device.dart

@@ -438,6 +438,8 @@ class AndroidDevice extends Device {
       }
       if (debuggingOptions.startPaused)
         cmd.addAll(<String>['--ez', 'start-paused', 'true']);
+      if (debuggingOptions.disableServiceAuthCodes)
+        cmd.addAll(<String>['--ez', 'disable-service-auth-codes', 'true']);
       if (debuggingOptions.useTestFonts)
         cmd.addAll(<String>['--ez', 'use-test-fonts', 'true']);
       if (debuggingOptions.verboseSystemLogs) {

packages/flutter_tools/lib/src/commands/run.dart

@@ -169,6 +169,11 @@ class RunCommand extends RunCommandBase {
               'results out to "refresh_benchmark.json", and exit. This flag is '
               'intended for use in generating automated flutter benchmarks.',
       )
+      ..addFlag('disable-service-auth-codes',
+        negatable: false,
+        hide: !verboseHelp,
+        help: 'No longer require an authentication code to connect to the VM '
+              'service (not recommended).')
       ..addOption(FlutterOptions.kExtraFrontEndOptions, hide: true)
       ..addOption(FlutterOptions.kExtraGenSnapshotOptions, hide: true)
       ..addMultiOption(FlutterOptions.kEnableExperiment,
@@ -262,6 +267,7 @@ class RunCommand extends RunCommandBase {
       return DebuggingOptions.enabled(
         buildInfo,
         startPaused: argResults['start-paused'],
+        disableServiceAuthCodes: argResults['disable-service-auth-codes'],
         useTestFonts: argResults['use-test-fonts'],
         enableSoftwareRendering: argResults['enable-software-rendering'],
         skiaDeterministicRendering: argResults['skia-deterministic-rendering'],

packages/flutter_tools/lib/src/commands/test.dart

@@ -43,6 +43,13 @@ class TestCommand extends FastFlutterCommand {
               'Instructions for connecting with a debugger and printed to the '
               'console once the test has started.',
       )
+      ..addFlag('disable-service-auth-codes',
+        hide: !verboseHelp,
+        defaultsTo: false,
+        negatable: false,
+        help: 'No longer require an authentication code to connect to the VM '
+              'service (not recommended).'
+      )
       ..addFlag('coverage',
         defaultsTo: false,
         negatable: false,
@@ -194,6 +201,9 @@ class TestCommand extends FastFlutterCommand {
       }
     }
 
+    final bool disableServiceAuthCodes =
+      argResults['disable-service-auth-codes'];
+
     final int result = await runTests(
       files,
       workDir: workDir,
@@ -202,6 +212,7 @@ class TestCommand extends FastFlutterCommand {
       watcher: watcher,
       enableObservatory: collector != null || startPaused,
       startPaused: startPaused,
+      disableServiceAuthCodes: disableServiceAuthCodes,
       ipv6: argResults['ipv6'],
       machine: machine,
       trackWidgetCreation: argResults['track-widget-creation'],

packages/flutter_tools/lib/src/device.dart

@@ -367,6 +367,7 @@ class DebuggingOptions {
   DebuggingOptions.enabled(
     this.buildInfo, {
     this.startPaused = false,
+    this.disableServiceAuthCodes = false,
     this.enableSoftwareRendering = false,
     this.skiaDeterministicRendering = false,
     this.traceSkia = false,
@@ -381,6 +382,7 @@ class DebuggingOptions {
     : debuggingEnabled = false,
       useTestFonts = false,
       startPaused = false,
+      disableServiceAuthCodes = false,
       enableSoftwareRendering = false,
       skiaDeterministicRendering = false,
       traceSkia = false,
@@ -393,6 +395,7 @@ class DebuggingOptions {
 
   final BuildInfo buildInfo;
   final bool startPaused;
+  final bool disableServiceAuthCodes;
   final bool enableSoftwareRendering;
   final bool skiaDeterministicRendering;
   final bool traceSkia;

packages/flutter_tools/lib/src/ios/devices.dart

@@ -279,6 +279,9 @@ class IOSDevice extends Device {
     if (debuggingOptions.startPaused)
       launchArguments.add('--start-paused');
 
+    if (debuggingOptions.disableServiceAuthCodes)
+      launchArguments.add('--disable-service-auth-codes');
+
     if (debuggingOptions.useTestFonts)
       launchArguments.add('--use-test-fonts');
 

packages/flutter_tools/lib/src/ios/simulators.dart

@@ -325,6 +325,8 @@ class IOSSimulator extends Device {
         ]);
       if (debuggingOptions.startPaused)
         args.add('--start-paused');
+      if (debuggingOptions.disableServiceAuthCodes)
+        args.add('--disable-service-auth-codes');
       if (debuggingOptions.skiaDeterministicRendering)
         args.add('--skia-deterministic-rendering');
       if (debuggingOptions.useTestFonts)

packages/flutter_tools/lib/src/protocol_discovery.dart

@@ -59,8 +59,7 @@ class ProtocolDiscovery {
 
   void _handleLine(String line) {
     Uri uri;
-
-    final RegExp r = RegExp('${RegExp.escape(serviceName)} listening on ((http|\/\/)[a-zA-Z0-9:/=\.\\[\\]]+)');
+    final RegExp r = RegExp('${RegExp.escape(serviceName)} listening on ((http|\/\/)[a-zA-Z0-9:/=_\\-\.\\[\\]]+)');
     final Match match = r.firstMatch(line);
 
     if (match != null) {

packages/flutter_tools/lib/src/test/flutter_platform.dart

@@ -83,6 +83,7 @@ void installHook({
   bool enableObservatory = false,
   bool machine = false,
   bool startPaused = false,
+  bool disableServiceAuthCodes = false,
   int port = 0,
   String precompiledDillPath,
   Map<String, String> precompiledDillFiles,
@@ -104,6 +105,7 @@ void installHook({
       machine: machine,
       enableObservatory: enableObservatory,
       startPaused: startPaused,
+      disableServiceAuthCodes: disableServiceAuthCodes,
       explicitObservatoryPort: observatoryPort,
       host: _kHosts[serverType],
       port: port,
@@ -385,6 +387,7 @@ class _FlutterPlatform extends PlatformPlugin {
     this.enableObservatory,
     this.machine,
     this.startPaused,
+    this.disableServiceAuthCodes,
     this.explicitObservatoryPort,
     this.host,
     this.port,
@@ -403,6 +406,7 @@ class _FlutterPlatform extends PlatformPlugin {
   final bool enableObservatory;
   final bool machine;
   final bool startPaused;
+  final bool disableServiceAuthCodes;
   final int explicitObservatoryPort;
   final InternetAddress host;
   final int port;
@@ -585,6 +589,7 @@ class _FlutterPlatform extends PlatformPlugin {
         packages: PackageMap.globalPackagesPath,
         enableObservatory: enableObservatory,
         startPaused: startPaused,
+        disableServiceAuthCodes: disableServiceAuthCodes,
         observatoryPort: explicitObservatoryPort,
         serverPort: server.port,
       );
@@ -932,6 +937,7 @@ class _FlutterPlatform extends PlatformPlugin {
     String packages,
     bool enableObservatory = false,
     bool startPaused = false,
+    bool disableServiceAuthCodes = false,
     int observatoryPort,
     int serverPort,
   }) {
@@ -953,6 +959,9 @@ class _FlutterPlatform extends PlatformPlugin {
       if (startPaused) {
         command.add('--start-paused');
       }
+      if (disableServiceAuthCodes) {
+        command.add('--disable-service-auth-codes');
+      }
     } else {
       command.add('--disable-observatory');
     }

packages/flutter_tools/lib/src/test/runner.dart

@@ -27,6 +27,7 @@ Future<int> runTests(
   List<String> plainNames = const <String>[],
   bool enableObservatory = false,
   bool startPaused = false,
+  bool disableServiceAuthCodes = false,
   bool ipv6 = false,
   bool machine = false,
   String precompiledDillPath,
@@ -79,6 +80,7 @@ Future<int> runTests(
     enableObservatory: enableObservatory,
     machine: machine,
     startPaused: startPaused,
+    disableServiceAuthCodes: disableServiceAuthCodes,
     serverType: serverType,
     precompiledDillPath: precompiledDillPath,
     precompiledDillFiles: precompiledDillFiles,

packages/flutter_tools/lib/src/tester/flutter_tester.dart

@@ -120,6 +120,8 @@ class FlutterTesterDevice extends Device {
     if (debuggingOptions.debuggingEnabled) {
       if (debuggingOptions.startPaused)
         command.add('--start-paused');
+      if (debuggingOptions.disableServiceAuthCodes)
+        command.add('--disable-service-auth-codes');
       if (debuggingOptions.hasObservatoryPort)
         command.add('--observatory-port=${debuggingOptions.observatoryPort}');
     }

packages/flutter_tools/test/commands/attach_test.dart

@@ -178,7 +178,7 @@ void main() {
         await expectLater(
           createTestCommandRunner(command).run(<String>['attach', '--ipv6']),
           throwsToolExit(
-            message: 'When the --debug-port is unknown, this command determines '
+            message: 'When the --debug-port or --debug-uri is unknown, this command determines '
                      'the value of --ipv6 on its own.',
           ),
         );
@@ -193,7 +193,7 @@ void main() {
         await expectLater(
           createTestCommandRunner(command).run(<String>['attach', '--observatory-port', '100']),
           throwsToolExit(
-            message: 'When the --debug-port is unknown, this command does not use '
+            message: 'When the --debug-port or --debug-uri is unknown, this command does not use '
                      'the value of --observatory-port.',
           ),
         );
@@ -438,7 +438,7 @@ void main() {
       final MDnsClient client = MockMDnsClient();
 
       when(client.lookup<PtrResourceRecord>(
-        ResourceRecordQuery.serverPointer(MDnsObservatoryPortDiscovery.dartObservatoryName),
+        ResourceRecordQuery.serverPointer(MDnsObservatoryDiscovery.dartObservatoryName),
       )).thenAnswer((_) => Stream<PtrResourceRecord>.fromIterable(ptrRecords));
 
       for (final MapEntry<String, List<SrvResourceRecord>> entry in srvResponse.entries) {
@@ -452,8 +452,8 @@ void main() {
     testUsingContext('No ports available', () async {
       final MDnsClient client = getMockClient(<PtrResourceRecord>[], <String, List<SrvResourceRecord>>{});
 
-      final MDnsObservatoryPortDiscovery portDiscovery = MDnsObservatoryPortDiscovery(mdnsClient: client);
-      final int port = await portDiscovery.queryForPort();
+      final MDnsObservatoryDiscovery portDiscovery = MDnsObservatoryDiscovery(mdnsClient: client);
+      final int port = (await portDiscovery.query())?.port;
       expect(port, isNull);
     });
 
@@ -469,8 +469,8 @@ void main() {
         },
       );
 
-      final MDnsObservatoryPortDiscovery portDiscovery = MDnsObservatoryPortDiscovery(mdnsClient: client);
-      final int port = await portDiscovery.queryForPort();
+      final MDnsObservatoryDiscovery portDiscovery = MDnsObservatoryDiscovery(mdnsClient: client);
+      final int port = (await portDiscovery.query())?.port;
       expect(port, 123);
     });
 
@@ -490,8 +490,8 @@ void main() {
         },
       );
 
-      final MDnsObservatoryPortDiscovery portDiscovery = MDnsObservatoryPortDiscovery(mdnsClient: client);
-      expect(() => portDiscovery.queryForPort(), throwsToolExit());
+      final MDnsObservatoryDiscovery portDiscovery = MDnsObservatoryDiscovery(mdnsClient: client);
+      expect(() => portDiscovery.query(), throwsToolExit());
     });
 
     testUsingContext('Multiple ports available, with appId', () async {
@@ -510,8 +510,8 @@ void main() {
         },
       );
 
-      final MDnsObservatoryPortDiscovery portDiscovery = MDnsObservatoryPortDiscovery(mdnsClient: client);
-      final int port = await portDiscovery.queryForPort(applicationId: 'fiz');
+      final MDnsObservatoryDiscovery portDiscovery = MDnsObservatoryDiscovery(mdnsClient: client);
+      final int port = (await portDiscovery.query(applicationId: 'fiz'))?.port;
       expect(port, 321);
     });
 
@@ -533,8 +533,8 @@ void main() {
         },
       );
 
-      final MDnsObservatoryPortDiscovery portDiscovery = MDnsObservatoryPortDiscovery(mdnsClient: client);
-      final int port = await portDiscovery.queryForPort(applicationId: 'bar');
+      final MDnsObservatoryDiscovery portDiscovery = MDnsObservatoryDiscovery(mdnsClient: client);
+      final int port = (await portDiscovery.query(applicationId: 'bar'))?.port;
       expect(port, 1234);
     });
   });

packages/flutter_tools/test/integration/test_driver.dart

@@ -417,6 +417,7 @@ class FlutterRunTestDriver extends FlutterTestDriver {
     await _setupProcess(
       <String>[
         'run',
+	'--disable-service-auth-codes',
         '--machine',
         '-d',
         'flutter-tester',
@@ -607,6 +608,7 @@ class FlutterTestTestDriver extends FlutterTestDriver {
   }) async {
     await _setupProcess(<String>[
         'test',
+	'--disable-service-auth-codes',
         '--machine',
         '-d',
         'flutter-tester',