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| 1 | +/*--------------------------------------------------------------------------------------------- |
| 2 | + * Copyright (c) Microsoft Corporation. All rights reserved. |
| 3 | + * Licensed under the MIT License. See License.txt in the project root for license information. |
| 4 | + *--------------------------------------------------------------------------------------------*/ |
| 5 | + |
| 6 | +import { IWebSocketFactory, IConnectCallback } from 'vs/platform/remote/common/remoteAgentConnection'; |
| 7 | +import { ISocket } from 'vs/base/parts/ipc/common/ipc.net'; |
| 8 | +import { VSBuffer } from 'vs/base/common/buffer'; |
| 9 | +import { IDisposable, Disposable } from 'vs/base/common/lifecycle'; |
| 10 | +import { onUnexpectedError } from 'vs/base/common/errors'; |
| 11 | + |
| 12 | +class BrowserSocket implements ISocket { |
| 13 | + public readonly socket: WebSocket; |
| 14 | + |
| 15 | + constructor(socket: WebSocket) { |
| 16 | + this.socket = socket; |
| 17 | + } |
| 18 | + |
| 19 | + public dispose(): void { |
| 20 | + this.socket.close(); |
| 21 | + } |
| 22 | + |
| 23 | + public onData(_listener: (e: VSBuffer) => void): IDisposable { |
| 24 | + const fileReader = new FileReader(); |
| 25 | + const queue: Blob[] = []; |
| 26 | + let isReading = false; |
| 27 | + fileReader.onload = function (event) { |
| 28 | + isReading = false; |
| 29 | + const buff = <ArrayBuffer>(<any>event.target).result; |
| 30 | + |
| 31 | + try { |
| 32 | + _listener(VSBuffer.wrap(new Uint8Array(buff))); |
| 33 | + } catch (err) { |
| 34 | + onUnexpectedError(err); |
| 35 | + } |
| 36 | + |
| 37 | + if (queue.length > 0) { |
| 38 | + enqueue(queue.shift()!); |
| 39 | + } |
| 40 | + }; |
| 41 | + const enqueue = (blob: Blob) => { |
| 42 | + if (isReading) { |
| 43 | + queue.push(blob); |
| 44 | + return; |
| 45 | + } |
| 46 | + isReading = true; |
| 47 | + fileReader.readAsArrayBuffer(blob); |
| 48 | + }; |
| 49 | + const listener = (e: MessageEvent) => { |
| 50 | + enqueue(<Blob>e.data); |
| 51 | + }; |
| 52 | + this.socket.addEventListener('message', listener); |
| 53 | + return { |
| 54 | + dispose: () => this.socket.removeEventListener('message', listener) |
| 55 | + }; |
| 56 | + } |
| 57 | + |
| 58 | + public onClose(listener: () => void): IDisposable { |
| 59 | + this.socket.addEventListener('close', listener); |
| 60 | + return { |
| 61 | + dispose: () => this.socket.removeEventListener('close', listener) |
| 62 | + }; |
| 63 | + } |
| 64 | + |
| 65 | + public onEnd(listener: () => void): IDisposable { |
| 66 | + return Disposable.None; |
| 67 | + } |
| 68 | + |
| 69 | + public write(buffer: VSBuffer): void { |
| 70 | + this.socket.send(buffer.buffer); |
| 71 | + } |
| 72 | + |
| 73 | + public end(): void { |
| 74 | + this.socket.close(); |
| 75 | + } |
| 76 | + |
| 77 | +} |
| 78 | + |
| 79 | +export const browserWebSocketFactory = new class implements IWebSocketFactory { |
| 80 | + connect(host: string, port: number, query: string, callback: IConnectCallback): void { |
| 81 | + const errorListener = (err: any) => callback(err, undefined); |
| 82 | + const socket = new WebSocket(`ws://${host}:${port}/?${query}&skipWebSocketFrames=false`); |
| 83 | + socket.onopen = function (event) { |
| 84 | + socket.removeEventListener('error', errorListener); |
| 85 | + callback(undefined, new BrowserSocket(socket)); |
| 86 | + }; |
| 87 | + socket.addEventListener('error', errorListener); |
| 88 | + } |
| 89 | +}; |
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