signal-desktop/ts/updater/windows.ts
2024-11-11 11:57:55 -08:00

132 lines
3.4 KiB
TypeScript

// Copyright 2019 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
import { join } from 'path';
import type { SpawnOptions } from 'child_process';
import { spawn as spawnEmitter } from 'child_process';
import { readdir as readdirCallback, unlink as unlinkCallback } from 'fs';
import { app } from 'electron';
import pify from 'pify';
import { Updater } from './common';
const readdir = pify(readdirCallback);
const unlink = pify(unlinkCallback);
const IS_EXE = /\.exe$/i;
export class WindowsUpdater extends Updater {
private installing = false;
// This is fixed by our new install mechanisms...
// https://github.com/signalapp/Signal-Desktop/issues/2369
// ...but we should also clean up those old installers.
protected async deletePreviousInstallers(): Promise<void> {
const userDataPath = app.getPath('userData');
const files: Array<string> = await readdir(userDataPath);
await Promise.all(
files.map(async file => {
const isExe = IS_EXE.test(file);
if (!isExe) {
return;
}
const fullPath = join(userDataPath, file);
try {
await unlink(fullPath);
} catch (error) {
this.logger.error(
`deletePreviousInstallers: couldn't delete file ${file}`
);
}
})
);
}
protected async installUpdate(
updateFilePath: string,
isSilent: boolean
): Promise<() => Promise<void>> {
const { logger } = this;
return async () => {
logger.info('downloadAndInstall: installing...');
try {
await this.install(updateFilePath, isSilent);
this.installing = true;
} catch (error) {
this.markCannotUpdate(error);
throw error;
}
// If interrupted at this point, we only want to restart (not reattempt install)
this.setUpdateListener(this.restart);
this.restart();
};
}
protected restart(): void {
this.logger.info('downloadAndInstall: restarting...');
this.markRestarting();
app.quit();
}
private async install(filePath: string, isSilent: boolean): Promise<void> {
if (this.installing) {
return;
}
const { logger } = this;
logger.info('windows/install: installing package...');
const args = ['--updated'];
if (isSilent) {
// App isn't automatically restarted with "/S" flag, but "--updated"
// will trigger our code in `build/installer.nsh` that will start the app
// with "--start-in-tray" flag (see `app/main.ts`)
args.push('/S');
}
const options = {
detached: true,
stdio: 'ignore' as const, // TypeScript considers this a plain string without help
};
try {
await spawn(filePath, args, options);
} catch (error) {
if (error.code === 'UNKNOWN' || error.code === 'EACCES') {
logger.warn(
'windows/install: Error running installer; Trying again with elevate.exe'
);
await spawn(getElevatePath(), [filePath, ...args], options);
return;
}
throw error;
}
}
}
// Helpers
function getElevatePath() {
const installPath = app.getAppPath();
return join(installPath, 'resources', 'elevate.exe');
}
async function spawn(
exe: string,
args: Array<string>,
options: SpawnOptions
): Promise<void> {
return new Promise((resolve, reject) => {
const emitter = spawnEmitter(exe, args, options);
emitter.on('error', reject);
emitter.unref();
setTimeout(resolve, 200);
});
}