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/**
* @license
* Copyright 2018 Google Inc.
* SPDX-License-Identifier: Apache-2.0
*/
import NodeWebSocket from 'ws';
import type {ConnectionTransport} from '../common/ConnectionTransport.js';
import {packageVersion} from '../generated/version.js';
/**
* @internal
*/
export class NodeWebSocketTransport implements ConnectionTransport {
static create(
url: string,
headers?: Record<string, string>
): Promise<NodeWebSocketTransport> {
return new Promise((resolve, reject) => {
const ws = new NodeWebSocket(url, [], {
followRedirects: true,
perMessageDeflate: false,
// @ts-expect-error https://github.com/websockets/ws/blob/master/doc/ws.md#new-websocketaddress-protocols-options
allowSynchronousEvents: false,
maxPayload: 256 * 1024 * 1024, // 256Mb
headers: {
'User-Agent': `Puppeteer ${packageVersion}`,
...headers,
},
});
ws.addEventListener('open', () => {
return resolve(new NodeWebSocketTransport(ws));
});
ws.addEventListener('error', reject);
});
}
#ws: NodeWebSocket;
onmessage?: (message: NodeWebSocket.Data) => void;
onclose?: () => void;
constructor(ws: NodeWebSocket) {
this.#ws = ws;
this.#ws.addEventListener('message', event => {
if (this.onmessage) {
this.onmessage.call(null, event.data);
}
});
this.#ws.addEventListener('close', () => {
if (this.onclose) {
this.onclose.call(null);
}
});
// Silently ignore all errors - we don't know what to do with them.
this.#ws.addEventListener('error', () => {});
}
send(message: string): void {
this.#ws.send(message);
}
close(): void {
this.#ws.close();
}
}