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6c31582031
Change-Id: If47aa98918b0166dba781a0008c23b991d46fe1c Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/165420 Reviewed-by: Ben Konyi <bkonyi@google.com> Commit-Queue: Ryan Macnak <rmacnak@google.com>
80 lines
2.8 KiB
Dart
80 lines
2.8 KiB
Dart
// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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library service_html;
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import 'dart:async';
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import 'dart:convert';
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import 'dart:html';
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import 'dart:typed_data';
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import 'package:observatory_2/service_common.dart';
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// Export the service library.
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export 'package:observatory_2/service_common.dart';
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class _HtmlWebSocket implements CommonWebSocket {
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WebSocket _webSocket;
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Future<void> connect(WebSocketVMTarget target, void onOpen(),
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void onMessage(dynamic data), void onError(), void onClose()) async {
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// The VM service will attempt to redirect our websocket connection request
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// to DDS, but the dart:html WebSocket doesn't follow redirects. Instead of
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// relying on a redirect, we'll request the websocket URI from the service.
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// TODO(bkonyi): re-enable when DDS is enabled. Currently causing Observatory
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// failures when running with Flutter (see
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// https://github.com/flutter/flutter/issues/64333)
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/*Uri getWebSocketUriRequest = Uri.parse(target.networkAddress);
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getWebSocketUriRequest =
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getWebSocketUriRequest.replace(scheme: 'http', pathSegments: [
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...getWebSocketUriRequest.pathSegments.where((e) => e != 'ws'),
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'getWebSocketTarget',
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]);
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final response = json.decode(await HttpRequest.getString(
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getWebSocketUriRequest.toString(),
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));
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if (!response.containsKey('result') ||
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!response['result'].containsKey('uri')) {
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onError();
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return;
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}
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target.networkAddress = response['result']['uri'];
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*/
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_webSocket = new WebSocket(target.networkAddress);
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_webSocket.onClose.listen((CloseEvent) => onClose());
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_webSocket.onError.listen((Event) => onError());
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_webSocket.onOpen.listen((Event) => onOpen());
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_webSocket.onMessage.listen((MessageEvent event) => onMessage(event.data));
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}
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bool get isOpen => _webSocket.readyState == WebSocket.OPEN;
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void send(dynamic data) {
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_webSocket.send(data);
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}
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void close() {
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_webSocket.close();
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}
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Future<ByteData> nonStringToByteData(dynamic data) {
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assert(data is Blob);
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FileReader fileReader = new FileReader();
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fileReader.readAsArrayBuffer(data);
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return fileReader.onLoadEnd.first.then((e) {
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Uint8List result = fileReader.result as Uint8List;
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return new ByteData.view(
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result.buffer, result.offsetInBytes, result.length);
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});
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}
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}
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/// The [WebSocketVM] communicates with a Dart VM over WebSocket. The Dart VM
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/// can be embedded in Chromium or standalone. In the case of Chromium, we
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/// make the service requests via the Chrome Remote Debugging Protocol.
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class WebSocketVM extends CommonWebSocketVM {
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WebSocketVM(WebSocketVMTarget target) : super(target, new _HtmlWebSocket());
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}
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