Merge commit 'be3e8236086165e5e45a5a10783823874b3f3ebd' as 'lib/vscode'

lib/vscode/extensions/git/src/askpass.ts

@@ -0,0 +1,98 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { window, InputBoxOptions, Uri, OutputChannel, Disposable, workspace } from 'vscode';
+import { IDisposable, EmptyDisposable, toDisposable } from './util';
+import * as path from 'path';
+import { IIPCHandler, IIPCServer, createIPCServer } from './ipc/ipcServer';
+import { CredentialsProvider, Credentials } from './api/git';
+
+export class Askpass implements IIPCHandler {
+
+	private disposable: IDisposable = EmptyDisposable;
+	private cache = new Map<string, Credentials>();
+	private credentialsProviders = new Set<CredentialsProvider>();
+
+	static async create(outputChannel: OutputChannel, context?: string): Promise<Askpass> {
+		try {
+			return new Askpass(await createIPCServer(context));
+		} catch (err) {
+			outputChannel.appendLine(`[error] Failed to create git askpass IPC: ${err}`);
+			return new Askpass();
+		}
+	}
+
+	private constructor(private ipc?: IIPCServer) {
+		if (ipc) {
+			this.disposable = ipc.registerHandler('askpass', this);
+		}
+	}
+
+	async handle({ request, host }: { request: string, host: string }): Promise<string> {
+		const config = workspace.getConfiguration('git', null);
+		const enabled = config.get<boolean>('enabled');
+
+		if (!enabled) {
+			return '';
+		}
+
+		const uri = Uri.parse(host);
+		const authority = uri.authority.replace(/^.*@/, '');
+		const password = /password/i.test(request);
+		const cached = this.cache.get(authority);
+
+		if (cached && password) {
+			this.cache.delete(authority);
+			return cached.password;
+		}
+
+		if (!password) {
+			for (const credentialsProvider of this.credentialsProviders) {
+				try {
+					const credentials = await credentialsProvider.getCredentials(uri);
+
+					if (credentials) {
+						this.cache.set(authority, credentials);
+						setTimeout(() => this.cache.delete(authority), 60_000);
+						return credentials.username;
+					}
+				} catch { }
+			}
+		}
+
+		const options: InputBoxOptions = {
+			password,
+			placeHolder: request,
+			prompt: `Git: ${host}`,
+			ignoreFocusOut: true
+		};
+
+		return await window.showInputBox(options) || '';
+	}
+
+	getEnv(): { [key: string]: string; } {
+		if (!this.ipc) {
+			return {
+				GIT_ASKPASS: path.join(__dirname, 'askpass-empty.sh')
+			};
+		}
+
+		return {
+			...this.ipc.getEnv(),
+			GIT_ASKPASS: path.join(__dirname, 'askpass.sh'),
+			VSCODE_GIT_ASKPASS_NODE: process.execPath,
+			VSCODE_GIT_ASKPASS_MAIN: path.join(__dirname, 'askpass-main.js')
+		};
+	}
+
+	registerCredentialsProvider(provider: CredentialsProvider): Disposable {
+		this.credentialsProviders.add(provider);
+		return toDisposable(() => this.credentialsProviders.delete(provider));
+	}
+
+	dispose(): void {
+		this.disposable.dispose();
+	}
+}