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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import * as errors from 'vs/base/common/errors';
import * as performance from 'vs/base/common/performance';
import { URI } from 'vs/base/common/uri';
import { IURITransformer } from 'vs/base/common/uriIpc';
import { IMessagePassingProtocol } from 'vs/base/parts/ipc/common/ipc';
import { MainContext, MainThreadConsoleShape } from 'vs/workbench/api/common/extHost.protocol';
import { IExtensionHostInitData } from 'vs/workbench/services/extensions/common/extensionHostProtocol';
import { RPCProtocol } from 'vs/workbench/services/extensions/common/rpcProtocol';
import { IExtensionDescription } from 'vs/platform/extensions/common/extensions';
import { ILogService } from 'vs/platform/log/common/log';
import { getSingletonServiceDescriptors } from 'vs/platform/instantiation/common/extensions';
import { ServiceCollection } from 'vs/platform/instantiation/common/serviceCollection';
import { IExtHostInitDataService } from 'vs/workbench/api/common/extHostInitDataService';
import { InstantiationService } from 'vs/platform/instantiation/common/instantiationService';
import { IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
import { IExtHostRpcService, ExtHostRpcService } from 'vs/workbench/api/common/extHostRpcService';
import { IURITransformerService, URITransformerService } from 'vs/workbench/api/common/extHostUriTransformerService';
import { IExtHostExtensionService, IHostUtils } from 'vs/workbench/api/common/extHostExtensionService';
export interface IExitFn {
(code?: number): any;
}
export interface IConsolePatchFn {
(mainThreadConsole: MainThreadConsoleShape): any;
}
export class ExtensionHostMain {
private readonly _hostUtils: IHostUtils;
private readonly _rpcProtocol: RPCProtocol;
private readonly _extensionService: IExtHostExtensionService;
private readonly _logService: ILogService;
constructor(
protocol: IMessagePassingProtocol,
initData: IExtensionHostInitData,
hostUtils: IHostUtils,
uriTransformer: IURITransformer | null,
messagePorts?: ReadonlyMap<string, MessagePort>
) {
this._hostUtils = hostUtils;
this._rpcProtocol = new RPCProtocol(protocol, null, uriTransformer);
// ensure URIs are transformed and revived
initData = ExtensionHostMain._transform(initData, this._rpcProtocol);
// bootstrap services
const services = new ServiceCollection(...getSingletonServiceDescriptors());
services.set(IExtHostInitDataService, { _serviceBrand: undefined, ...initData, messagePorts });
services.set(IExtHostRpcService, new ExtHostRpcService(this._rpcProtocol));
services.set(IURITransformerService, new URITransformerService(uriTransformer));
services.set(IHostUtils, hostUtils);
const instaService: IInstantiationService = new InstantiationService(services, true);
// ugly self - inject
this._logService = instaService.invokeFunction(accessor => accessor.get(ILogService));
performance.mark(`code/extHost/didCreateServices`);
if (this._hostUtils.pid) {
this._logService.info(`Extension host with pid ${this._hostUtils.pid} started`);
} else {
this._logService.info(`Extension host started`);
}
this._logService.trace('initData', initData);
// ugly self - inject
// must call initialize *after* creating the extension service
// because `initialize` itself creates instances that depend on it
this._extensionService = instaService.invokeFunction(accessor => accessor.get(IExtHostExtensionService));
this._extensionService.initialize();
// error forwarding and stack trace scanning
Error.stackTraceLimit = 100; // increase number of stack frames (from 10, https://github.com/v8/v8/wiki/Stack-Trace-API)
const extensionErrors = new WeakMap<Error, IExtensionDescription | undefined>();
this._extensionService.getExtensionPathIndex().then(map => {
(<any>Error).prepareStackTrace = (error: Error, stackTrace: errors.V8CallSite[]) => {
let stackTraceMessage = '';
let extension: IExtensionDescription | undefined;
let fileName: string;
for (const call of stackTrace) {
stackTraceMessage += `\n\tat ${call.toString()}`;
fileName = call.getFileName();
if (!extension && fileName) {
extension = map.findSubstr(URI.file(fileName));
}
}
extensionErrors.set(error, extension);
return `${error.name || 'Error'}: ${error.message || ''}${stackTraceMessage}`;
};
});
const mainThreadExtensions = this._rpcProtocol.getProxy(MainContext.MainThreadExtensionService);
const mainThreadErrors = this._rpcProtocol.getProxy(MainContext.MainThreadErrors);
errors.setUnexpectedErrorHandler(err => {
const data = errors.transformErrorForSerialization(err);
const extension = extensionErrors.get(err);
if (extension) {
mainThreadExtensions.$onExtensionRuntimeError(extension.identifier, data);
} else {
mainThreadErrors.$onUnexpectedError(data);
}
});
}
async asBrowserUri(uri: URI): Promise<URI> {
const mainThreadExtensionsProxy = this._rpcProtocol.getProxy(MainContext.MainThreadExtensionService);
return URI.revive(await mainThreadExtensionsProxy.$asBrowserUri(uri));
}
terminate(reason: string): void {
this._extensionService.terminate(reason);
}
private static _transform(initData: IExtensionHostInitData, rpcProtocol: RPCProtocol): IExtensionHostInitData {
initData.allExtensions.forEach((ext) => (<any>ext).extensionLocation = URI.revive(rpcProtocol.transformIncomingURIs(ext.extensionLocation)));
initData.environment.appRoot = URI.revive(rpcProtocol.transformIncomingURIs(initData.environment.appRoot));
const extDevLocs = initData.environment.extensionDevelopmentLocationURI;
if (extDevLocs) {
initData.environment.extensionDevelopmentLocationURI = extDevLocs.map(url => URI.revive(rpcProtocol.transformIncomingURIs(url)));
}
initData.environment.extensionTestsLocationURI = URI.revive(rpcProtocol.transformIncomingURIs(initData.environment.extensionTestsLocationURI));
initData.environment.globalStorageHome = URI.revive(rpcProtocol.transformIncomingURIs(initData.environment.globalStorageHome));
initData.environment.workspaceStorageHome = URI.revive(rpcProtocol.transformIncomingURIs(initData.environment.workspaceStorageHome));
initData.logsLocation = URI.revive(rpcProtocol.transformIncomingURIs(initData.logsLocation));
initData.logFile = URI.revive(rpcProtocol.transformIncomingURIs(initData.logFile));
initData.workspace = rpcProtocol.transformIncomingURIs(initData.workspace);
return initData;
}
}
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