Implement makeTunnel for localhost

Part of #81388

src/vs/workbench/api/browser/mainThreadTunnelService.ts

@@ -0,0 +1,38 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { MainThreadTunnelServiceShape, IExtHostContext, MainContext, ExtHostContext, ExtHostTunnelServiceShape } from 'vs/workbench/api/common/extHost.protocol';
+import { TunnelOptions, TunnelDto } from 'vs/workbench/api/common/extHostTunnelService';
+import { extHostNamedCustomer } from 'vs/workbench/api/common/extHostCustomers';
+import { IRemoteExplorerService } from 'vs/workbench/services/remote/common/remoteExplorerService';
+
+@extHostNamedCustomer(MainContext.MainThreadTunnelService)
+export class MainThreadTunnelService implements MainThreadTunnelServiceShape {
+	// @ts-ignore
+	private readonly _proxy: ExtHostTunnelServiceShape;
+
+	constructor(
+		extHostContext: IExtHostContext,
+		@IRemoteExplorerService private readonly remoteExplorerService: IRemoteExplorerService
+	) {
+		this._proxy = extHostContext.getProxy(ExtHostContext.ExtHostTunnelService);
+	}
+
+	async $openTunnel(tunnelOptions: TunnelOptions): Promise<TunnelDto | undefined> {
+		const tunnel = await this.remoteExplorerService.tunnelModel.forward(tunnelOptions.remote.port, tunnelOptions.localPort, tunnelOptions.name);
+		if (tunnel) {
+			return { remote: { host: tunnel.tunnelRemoteHost, port: tunnel.tunnelRemotePort }, localAddress: tunnel.localAddress };
+		}
+		return undefined;
+	}
+
+	async $closeTunnel(remotePort: number): Promise<void> {
+		return this.remoteExplorerService.tunnelModel.close(remotePort);
+	}
+
+	dispose(): void {
+		//
+	}
+}