7bb241bf63
Summary: Both util and internals. Reviewed By: danielbuechele Differential Revision: D16710453 fbshipit-source-id: e98972920084ce4d6bf083a48a442ab44c8e5f3e
98 lines
2.9 KiB
TypeScript
98 lines
2.9 KiB
TypeScript
/**
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* Copyright 2018-present Facebook.
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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* @format
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*/
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/*
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* This file is intentionally separate from androidContainerUtility so the
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* opaque types will ensure the commands are only ever run on validated
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* arguments.
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*/
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import {getAdbClient} from './adbClient';
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import {UnsupportedError} from './metrics';
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const adbkit = require('adbkit-fb');
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const allowedAppNameRegex = /^[a-zA-Z0-9._\-]+$/;
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const appNotDebuggableRegex = /debuggable/;
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const operationNotPermittedRegex = /not permitted/;
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const logTag = 'androidContainerUtility';
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export type AppName = string;
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export type Command = string;
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export type FilePath = string;
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export type FileContent = string;
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export function validateAppName(app: string): Promise<AppName> {
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if (app.match(allowedAppNameRegex)) {
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return Promise.resolve(app);
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}
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return Promise.reject(new Error(`Disallowed run-as user: ${app}`));
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}
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export function validateFilePath(filePath: string): Promise<FilePath> {
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if (!filePath.match(/[']/)) {
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return Promise.resolve(filePath);
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}
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return Promise.reject(new Error(`Disallowed escaping filepath: ${filePath}`));
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}
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export function validateFileContent(content: string): Promise<FileContent> {
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if (!content.match(/["]/)) {
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return Promise.resolve(content);
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}
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return Promise.reject(
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new Error(`Disallowed escaping file content: ${content}`),
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);
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}
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export function _push(
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deviceId: string,
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app: AppName,
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filename: FilePath,
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contents: FileContent,
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): Promise<void> {
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console.debug(`Deploying ${filename} to ${deviceId}:${app}`, logTag);
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return executeCommandAsApp(
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deviceId,
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app,
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`echo "${contents}" > '${filename}' && chmod 600 '${filename}'`,
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).then(output => undefined);
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}
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export function _pull(
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deviceId: string,
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app: AppName,
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path: FilePath,
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): Promise<string> {
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return executeCommandAsApp(deviceId, app, `cat '${path}'`);
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}
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// Keep this method private since it relies on pre-validated arguments
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function executeCommandAsApp(
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deviceId: string,
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app: string,
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command: string,
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): Promise<string> {
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return getAdbClient()
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.then(client =>
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client.shell(deviceId, `echo '${command}' | run-as '${app}'`),
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)
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.then(adbkit.util.readAll)
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.then(buffer => buffer.toString())
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.then(output => {
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if (output.match(appNotDebuggableRegex)) {
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throw new Error(
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`Android app ${app} is not debuggable. To use it with Flipper, add android:debuggable="true" to the application section of AndroidManifest.xml`,
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);
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}
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if (output.toLowerCase().match(operationNotPermittedRegex)) {
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throw new UnsupportedError(
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`Your android device (${deviceId}) does not support the adb shell run-as command. We're tracking this at https://github.com/facebook/flipper/issues/92`,
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);
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}
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return output;
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});
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}
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