playwright/src/client/socksSocket.ts

72 lines
2.5 KiB
TypeScript

/**
* Copyright (c) Microsoft Corporation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import net from 'net';
import * as channels from '../protocol/channels';
import { Playwright } from './playwright';
import { assert, isLocalIpAddress, isUnderTest } from '../utils/utils';
import { ChannelOwner } from './channelOwner';
export class SocksSocket extends ChannelOwner<channels.SocksSocketChannel, channels.SocksSocketInitializer> {
private _socket: net.Socket;
static from(socket: channels.SocksSocketChannel): SocksSocket {
return (socket as any)._object;
}
constructor(parent: ChannelOwner, type: string, guid: string, initializer: channels.SocksSocketInitializer) {
super(parent, type, guid, initializer);
assert(parent instanceof Playwright);
assert(parent._forwardPorts.includes(this._initializer.dstPort));
assert(isLocalIpAddress(this._initializer.dstAddr));
if (isUnderTest() && process.env.PW_TEST_PROXY_TARGET)
this._initializer.dstPort = Number(process.env.PW_TEST_PROXY_TARGET);
this._socket = net.createConnection(this._initializer.dstPort, this._initializer.dstAddr);
this._socket.on('error', (err: Error) => this._channel.error({error: String(err)}));
this._socket.on('connect', () => {
this.connected().catch(() => {});
this._socket.on('data', data => this.write(data).catch(() => {}));
});
this._socket.on('close', () => {
this.end().catch(() => {});
});
this._channel.on('data', ({ data }) => {
if (!this._socket.writable)
return;
this._socket.write(Buffer.from(data, 'base64'));
});
this._channel.on('close', () => this._socket.end());
this._connection.on('disconnect', () => this._socket.end());
}
async write(data: Buffer): Promise<void> {
await this._channel.write({ data: data.toString('base64') });
}
async end(): Promise<void> {
await this._channel.end();
}
async connected(): Promise<void> {
await this._channel.connected();
}
}