Better Keytar shim

src/vs/workbench/api/node/extHost.api.impl.ts

@@ -16,7 +16,7 @@ import { OverviewRulerLane } from 'vs/editor/common/model';
 import * as languageConfiguration from 'vs/editor/common/modes/languageConfiguration';
 import { score } from 'vs/editor/common/modes/languageSelector';
 import * as files from 'vs/platform/files/common/files';
-import { ExtHostContext, IInitData, IMainContext, MainContext, MainThreadKeytarShape } from 'vs/workbench/api/common/extHost.protocol';
+import { ExtHostContext, IInitData, IMainContext, MainContext, MainThreadKeytarShape, IEnvironment } from 'vs/workbench/api/common/extHost.protocol';
 import { ExtHostApiCommands } from 'vs/workbench/api/node/extHostApiCommands';
 import { ExtHostClipboard } from 'vs/workbench/api/node/extHostClipboard';
 import { ExtHostCommands } from 'vs/workbench/api/node/extHostCommands';
@@ -872,24 +872,34 @@ class Extension<T> implements vscode.Extension<T> {
 }
 
 interface INodeModuleFactory {
-	readonly nodeModuleName: string;
+	readonly nodeModuleName: string | string[];
 	load(request: string, parent: { filename: string; }): any;
+	alternaiveModuleName?(name: string): string | undefined;
 }
 
 export class NodeModuleRequireInterceptor {
 	public static INSTANCE = new NodeModuleRequireInterceptor();
 
 	private readonly _factories: Map<string, INodeModuleFactory>;
+	private readonly _alternatives: ((moduleName: string) => string | undefined)[];
 
 	constructor() {
 		this._factories = new Map<string, INodeModuleFactory>();
-		this._installInterceptor(this._factories);
+		this._alternatives = [];
+		this._installInterceptor(this._factories, this._alternatives);
 	}
 
-	private _installInterceptor(factories: Map<string, INodeModuleFactory>): void {
+	private _installInterceptor(factories: Map<string, INodeModuleFactory>, alternatives: ((moduleName: string) => string | undefined)[]): void {
 		const node_module = <any>require.__$__nodeRequire('module');
 		const original = node_module._load;
 		node_module._load = function load(request: string, parent: { filename: string; }, isMain: any) {
+			for (let alternativeModuleName of alternatives) {
+				let alternative = alternativeModuleName(request);
+				if (alternative) {
+					request = alternative;
+					break;
+				}
+			}
 			if (!factories.has(request)) {
 				return original.apply(this, arguments);
 			}
@@ -898,7 +908,18 @@ export class NodeModuleRequireInterceptor {
 	}
 
 	public register(interceptor: INodeModuleFactory): void {
-		this._factories.set(interceptor.nodeModuleName, interceptor);
+		if (Array.isArray(interceptor.nodeModuleName)) {
+			for (let moduleName of interceptor.nodeModuleName) {
+				this._factories.set(moduleName, interceptor);
+			}
+		} else {
+			this._factories.set(interceptor.nodeModuleName, interceptor);
+		}
+		if (typeof interceptor.alternaiveModuleName === 'function') {
+			this._alternatives.push((moduleName) => {
+				return interceptor.alternaiveModuleName!(moduleName);
+			});
+		}
 	}
 }
 
@@ -948,11 +969,25 @@ interface IKeytarModule {
 }
 
 export class KeytarNodeModuleFactory implements INodeModuleFactory {
-	public readonly nodeModuleName = 'keytar';
+	public readonly nodeModuleName: string = 'keytar';
 
+	private alternativeNames: Set<string> | undefined;
 	private _impl: IKeytarModule;
 
-	constructor(mainThreadKeytar: MainThreadKeytarShape) {
+
+	constructor(mainThreadKeytar: MainThreadKeytarShape, environment: IEnvironment) {
+		if (environment.appRoot) {
+			let appRoot = environment.appRoot.fsPath;
+			if (process.platform === 'win32') {
+				appRoot = appRoot.replace(/\\/g, '/');
+			}
+			if (appRoot[appRoot.length - 1] === '/') {
+				appRoot = appRoot.substr(0, appRoot.length - 1);
+			}
+			this.alternativeNames = new Set();
+			this.alternativeNames.add(`${appRoot}/node_modules.asar/keytar`);
+			this.alternativeNames.add(`${appRoot}/node_modules/keytar`);
+		}
 		this._impl = {
 			getPassword: (service: string, account: string): Promise<string | null> => {
 				return mainThreadKeytar.$getPassword(service, account);
@@ -972,4 +1007,20 @@ export class KeytarNodeModuleFactory implements INodeModuleFactory {
 	public load(request: string, parent: { filename: string; }): any {
 		return this._impl;
 	}
+
+	public alternaiveModuleName(name: string): string | undefined {
+		const length = name.length;
+		// We need at least something like: `?/keytar` which requires
+		// more than 7 characters.
+		if (length <= 7 || !this.alternativeNames) {
+			return undefined;
+		}
+		if (name.match(/[\\\/]keytar$/)) {
+			name = name.replace(/\\/g, '/');
+			if (this.alternativeNames.has(name)) {
+				return 'keytar';
+			}
+		}
+		return undefined;
+	}
 }