Split package:http_profile into multiple files

pkgs/http_profile/lib/src/http_client_request_profile.dart

@@ -0,0 +1,113 @@
+// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+part of 'http_profile.dart';
+
+/// Describes an event related to an HTTP request.
+final class HttpProfileRequestEvent {
+  final int _timestamp;
+  final String _name;
+
+  HttpProfileRequestEvent({required DateTime timestamp, required String name})
+      : _timestamp = timestamp.microsecondsSinceEpoch,
+        _name = name;
+
+  Map<String, dynamic> _toJson() => <String, dynamic>{
+        'timestamp': _timestamp,
+        'event': _name,
+      };
+}
+
+/// A record of debugging information about an HTTP request.
+final class HttpClientRequestProfile {
+  /// Whether HTTP profiling is enabled or not.
+  ///
+  /// The value can be changed programmatically or through the DevTools Network
+  /// UX.
+  static bool get profilingEnabled => HttpClient.enableTimelineLogging;
+  static set profilingEnabled(bool enabled) =>
+      HttpClient.enableTimelineLogging = enabled;
+
+  final _data = <String, dynamic>{};
+
+  /// Records an event related to the request.
+  ///
+  /// Usage example:
+  ///
+  /// ```dart
+  /// profile.addEvent(
+  ///   HttpProfileRequestEvent(
+  ///     timestamp: DateTime.now(),
+  ///     name: "Connection Established",
+  ///   ),
+  /// );
+  /// profile.addEvent(
+  ///   HttpProfileRequestEvent(
+  ///     timestamp: DateTime.now(),
+  ///     name: "Remote Disconnected",
+  ///   ),
+  /// );
+  /// ```
+  void addEvent(HttpProfileRequestEvent event) {
+    (_data['events'] as List<Map<String, dynamic>>).add(event._toJson());
+    _updated();
+  }
+
+  /// Details about the request.
+  late final HttpProfileRequestData requestData;
+
+  /// Details about the response.
+  late final HttpProfileResponseData responseData;
+
+  void _updated() =>
+      _data['_lastUpdateTime'] = DateTime.now().microsecondsSinceEpoch;
+
+  HttpClientRequestProfile._({
+    required DateTime requestStartTime,
+    required String requestMethod,
+    required String requestUri,
+  }) {
+    _data['isolateId'] = Service.getIsolateId(Isolate.current)!;
+    _data['requestStartTimestamp'] = requestStartTime.microsecondsSinceEpoch;
+    _data['requestMethod'] = requestMethod;
+    _data['requestUri'] = requestUri;
+    _data['events'] = <Map<String, dynamic>>[];
+    _data['requestData'] = <String, dynamic>{};
+    requestData = HttpProfileRequestData._(_data, _updated);
+    _data['responseData'] = <String, dynamic>{};
+    responseData = HttpProfileResponseData._(
+        _data['responseData'] as Map<String, dynamic>, _updated);
+    _data['_requestBodyStream'] = requestData._body.stream;
+    _data['_responseBodyStream'] = responseData._body.stream;
+    // This entry is needed to support the updatedSince parameter of
+    // ext.dart.io.getHttpProfile.
+    _updated();
+  }
+
+  /// If HTTP profiling is enabled, returns an [HttpClientRequestProfile],
+  /// otherwise returns `null`.
+  static HttpClientRequestProfile? profile({
+    /// The time at which the request was initiated.
+    required DateTime requestStartTime,
+
+    /// The HTTP request method associated with the request.
+    required String requestMethod,
+
+    /// The URI to which the request was sent.
+    required String requestUri,
+  }) {
+    // Always return `null` in product mode so that the profiling code can be
+    // tree shaken away.
+    if (const bool.fromEnvironment('dart.vm.product') || !profilingEnabled) {
+      return null;
+    }
+    final requestProfile = HttpClientRequestProfile._(
+      requestStartTime: requestStartTime,
+      requestMethod: requestMethod,
+      requestUri: requestUri,
+    );
+    addHttpClientProfilingData(requestProfile._data);
+    return requestProfile;
+  }
+}

pkgs/http_profile/lib/src/http_profile.dart

@@ -0,0 +1,14 @@
+// Copyright (c) 2024, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:developer' show addHttpClientProfilingData, Service;
+import 'dart:io' show HttpClient, HttpClientResponseCompressionState;
+import 'dart:isolate' show Isolate;
+
+import 'utils.dart';
+
+part 'http_client_request_profile.dart';
+part 'http_profile_request_data.dart';
+part 'http_profile_response_data.dart';

pkgs/http_profile/lib/src/http_profile_request_data.dart

@@ -0,0 +1,183 @@
+// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+part of 'http_profile.dart';
+
+final class HttpProfileProxyData {
+  final String? _host;
+  final String? _username;
+  final bool? _isDirect;
+  final int? _port;
+
+  HttpProfileProxyData({
+    String? host,
+    String? username,
+    bool? isDirect,
+    int? port,
+  })  : _host = host,
+        _username = username,
+        _isDirect = isDirect,
+        _port = port;
+
+  Map<String, dynamic> _toJson() => <String, dynamic>{
+        if (_host != null) 'host': _host,
+        if (_username != null) 'username': _username,
+        if (_isDirect != null) 'isDirect': _isDirect,
+        if (_port != null) 'port': _port,
+      };
+}
+
+/// Describes details about an HTTP request.
+final class HttpProfileRequestData {
+  final Map<String, dynamic> _data;
+  final StreamController<List<int>> _body = StreamController<List<int>>();
+  bool _isClosed = false;
+  final void Function() _updated;
+
+  Map<String, dynamic> get _requestData =>
+      _data['requestData'] as Map<String, dynamic>;
+
+  /// The body of the request.
+  StreamSink<List<int>> get bodySink => _body.sink;
+
+  /// Information about the networking connection used in the HTTP request.
+  ///
+  /// This information is meant to be used for debugging.
+  ///
+  /// It can contain any arbitrary data as long as the values are of type
+  /// [String] or [int]. For example:
+  /// { 'localPort': 1285, 'remotePort': 443, 'connectionPoolId': '21x23' }
+  set connectionInfo(Map<String, dynamic /*String|int*/ > value) {
+    _checkAndUpdate();
+    for (final v in value.values) {
+      if (!(v is String || v is int)) {
+        throw ArgumentError(
+          'The values in connectionInfo must be of type String or int.',
+        );
+      }
+    }
+    _requestData['connectionInfo'] = {...value};
+  }
+
+  /// The content length of the request, in bytes.
+  set contentLength(int? value) {
+    _checkAndUpdate();
+    if (value == null) {
+      _requestData.remove('contentLength');
+    } else {
+      _requestData['contentLength'] = value;
+    }
+  }
+
+  /// Whether automatic redirect following was enabled for the request.
+  set followRedirects(bool value) {
+    _checkAndUpdate();
+    _requestData['followRedirects'] = value;
+  }
+
+  /// The request headers where duplicate headers are represented using a list
+  /// of values.
+  ///
+  /// For example:
+  ///
+  /// ```dart
+  /// // Foo: Bar
+  /// // Foo: Baz
+  ///
+  /// profile?.requestData.headersListValues({'Foo', ['Bar', 'Baz']});
+  /// ```
+  set headersListValues(Map<String, List<String>>? value) {
+    _checkAndUpdate();
+    if (value == null) {
+      _requestData.remove('headers');
+      return;
+    }
+    _requestData['headers'] = {...value};
+  }
+
+  /// The request headers where duplicate headers are represented using a
+  /// comma-separated list of values.
+  ///
+  /// For example:
+  ///
+  /// ```dart
+  /// // Foo: Bar
+  /// // Foo: Baz
+  ///
+  /// profile?.requestData.headersCommaValues({'Foo', 'Bar, Baz']});
+  /// ```
+  set headersCommaValues(Map<String, String>? value) {
+    _checkAndUpdate();
+    if (value == null) {
+      _requestData.remove('headers');
+      return;
+    }
+    _requestData['headers'] = splitHeaderValues(value);
+  }
+
+  /// The maximum number of redirects allowed during the request.
+  set maxRedirects(int value) {
+    _checkAndUpdate();
+    _requestData['maxRedirects'] = value;
+  }
+
+  /// The requested persistent connection state.
+  set persistentConnection(bool value) {
+    _checkAndUpdate();
+    _requestData['persistentConnection'] = value;
+  }
+
+  /// Proxy authentication details for the request.
+  set proxyDetails(HttpProfileProxyData value) {
+    _checkAndUpdate();
+    _requestData['proxyDetails'] = value._toJson();
+  }
+
+  HttpProfileRequestData._(
+    this._data,
+    this._updated,
+  );
+
+  void _checkAndUpdate() {
+    if (_isClosed) {
+      throw StateError('HttpProfileResponseData has been closed, no further '
+          'updates are allowed');
+    }
+    _updated();
+  }
+
+  /// Signal that the request, including the entire request body, has been
+  /// sent.
+  ///
+  /// [bodySink] will be closed and the fields of [HttpProfileRequestData] will
+  /// no longer be changeable.
+  ///
+  /// [endTime] is the time when the request was fully sent. It defaults to the
+  /// current time.
+  void close([DateTime? endTime]) {
+    _checkAndUpdate();
+    _isClosed = true;
+    unawaited(bodySink.close());
+    _data['requestEndTimestamp'] =
+        (endTime ?? DateTime.now()).microsecondsSinceEpoch;
+  }
+
+  /// Signal that sending the request has failed with an error.
+  ///
+  /// [bodySink] will be closed and the fields of [HttpProfileRequestData] will
+  /// no longer be changeable.
+  ///
+  /// [value] is a textual description of the error e.g. 'host does not exist'.
+  ///
+  /// [endTime] is the time when the error occurred. It defaults to the current
+  /// time.
+  void closeWithError(String value, [DateTime? endTime]) {
+    _checkAndUpdate();
+    _isClosed = true;
+    unawaited(bodySink.close());
+    _requestData['error'] = value;
+    _data['requestEndTimestamp'] =
+        (endTime ?? DateTime.now()).microsecondsSinceEpoch;
+  }
+}