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joplin/packages/app-cli/app/command-e2ee.ts
2023-06-30 09:39:21 +01:00

274 lines
8.5 KiB
TypeScript

const BaseCommand = require('./base-command').default;
import { _ } from '@joplin/lib/locale';
import EncryptionService from '@joplin/lib/services/e2ee/EncryptionService';
import DecryptionWorker from '@joplin/lib/services/DecryptionWorker';
import BaseItem from '@joplin/lib/models/BaseItem';
import Setting from '@joplin/lib/models/Setting';
import shim from '@joplin/lib/shim';
import * as pathUtils from '@joplin/lib/path-utils';
import { getEncryptionEnabled, localSyncInfo } from '@joplin/lib/services/synchronizer/syncInfoUtils';
import { generateMasterKeyAndEnableEncryption, loadMasterKeysFromSettings, masterPasswordIsValid, setupAndDisableEncryption } from '@joplin/lib/services/e2ee/utils';
const imageType = require('image-type');
const readChunk = require('read-chunk');
class Command extends BaseCommand {
public usage() {
return 'e2ee <command> [path]';
}
public description() {
return _('Manages E2EE configuration. Commands are `enable`, `disable`, `decrypt`, `status`, `decrypt-file`, and `target-status`.'); // `generate-ppk`
}
public options() {
return [
// This is here mostly for testing - shouldn't be used
['-p, --password <password>', 'Use this password as master password (For security reasons, it is not recommended to use this option).'],
['-v, --verbose', 'More verbose output for the `target-status` command'],
['-o, --output <directory>', 'Output directory'],
['--retry-failed-items', 'Applies to `decrypt` command - retries decrypting items that previously could not be decrypted.'],
];
}
public async action(args: any) {
const options = args.options;
const askForMasterKey = async (error: any) => {
const masterKeyId = error.masterKeyId;
const password = await this.prompt(_('Enter master password:'), { type: 'string', secure: true });
if (!password) {
this.stdout(_('Operation cancelled'));
return false;
}
const masterKey = localSyncInfo().masterKeys.find(mk => mk.id === masterKeyId);
if (!(await masterPasswordIsValid(password, masterKey))) {
this.stdout(_('Invalid password'));
return false;
}
Setting.setObjectValue('encryption.passwordCache', masterKeyId, password);
await loadMasterKeysFromSettings(EncryptionService.instance());
return true;
};
const startDecryption = async () => {
this.stdout(_('Starting decryption... Please wait as it may take several minutes depending on how much there is to decrypt.'));
while (true) {
try {
const result = await DecryptionWorker.instance().start();
if (result.error) throw result.error;
const line = [];
line.push(_('Decrypted items: %d', result.decryptedItemCount));
if (result.skippedItemCount) line.push(_('Skipped items: %d (use --retry-failed-items to retry decrypting them)', result.skippedItemCount));
this.stdout(line.join('\n'));
break;
} catch (error) {
if (error.code === 'masterKeyNotLoaded') {
const ok = await askForMasterKey(error);
if (!ok) return;
continue;
}
throw error;
}
}
this.stdout(_('Completed decryption.'));
};
if (args.command === 'enable') {
const argPassword = options.password ? options.password.toString() : '';
const password = argPassword ? argPassword : await this.prompt(_('Enter master password:'), { type: 'string', secure: true });
if (!password) {
this.stdout(_('Operation cancelled'));
return;
}
// If the password was passed via command line, we don't ask for
// confirmation. This is to allow setting up E2EE entirely from the
// command line.
if (!argPassword) {
const password2 = await this.prompt(_('Confirm password:'), { type: 'string', secure: true });
if (!password2) {
this.stdout(_('Operation cancelled'));
return;
}
if (password !== password2) {
this.stdout(_('Passwords do not match!'));
return;
}
}
await generateMasterKeyAndEnableEncryption(EncryptionService.instance(), password);
return;
}
if (args.command === 'disable') {
await setupAndDisableEncryption(EncryptionService.instance());
return;
}
if (args.command === 'decrypt') {
if (args.path) {
const plainText = await EncryptionService.instance().decryptString(args.path);
this.stdout(plainText);
} else {
if (args.options['retry-failed-items']) await DecryptionWorker.instance().clearDisabledItems();
await startDecryption();
}
return;
}
if (args.command === 'status') {
this.stdout(_('Encryption is: %s', getEncryptionEnabled() ? _('Enabled') : _('Disabled')));
return;
}
if (args.command === 'decrypt-file') {
while (true) {
try {
const outputDir = options.output ? options.output : require('os').tmpdir();
let outFile = `${outputDir}/${pathUtils.filename(args.path)}.${Date.now()}.bin`;
await EncryptionService.instance().decryptFile(args.path, outFile);
const buffer = await readChunk(outFile, 0, 64);
const detectedType = imageType(buffer);
if (detectedType) {
const newOutFile = `${outFile}.${detectedType.ext}`;
await shim.fsDriver().move(outFile, newOutFile);
outFile = newOutFile;
}
this.stdout(outFile);
break;
} catch (error) {
if (error.code === 'masterKeyNotLoaded') {
const ok = await askForMasterKey(error);
if (!ok) return;
continue;
}
throw error;
}
}
return;
}
// if (args.command === 'generate-ppk') {
// const syncInfo = localSyncInfo();
// if (syncInfo.ppk) throw new Error('This account already has a public-private key pair');
// const argPassword = options.password ? options.password.toString() : '';
// if (!argPassword) throw new Error('Password must be provided'); // TODO: should get from prompt
// const ppk = await generateKeyPair(EncryptionService.instance(), argPassword);
// syncInfo.ppk = ppk;
// saveLocalSyncInfo(syncInfo);
// await Setting.saveAll();
// }
if (args.command === 'target-status') {
const fs = require('fs-extra');
const targetPath = args.path;
if (!targetPath) throw new Error('Please specify the sync target path.');
const dirPaths = function(targetPath: string) {
const paths: string[] = [];
// eslint-disable-next-line github/array-foreach -- Old code before rule was applied
fs.readdirSync(targetPath).forEach((path: string) => {
paths.push(path);
});
return paths;
};
let itemCount = 0;
let resourceCount = 0;
let encryptedItemCount = 0;
let encryptedResourceCount = 0;
let otherItemCount = 0;
const encryptedPaths = [];
const decryptedPaths = [];
const paths = dirPaths(targetPath);
for (let i = 0; i < paths.length; i++) {
const path = paths[i];
const fullPath = `${targetPath}/${path}`;
const stat = await fs.stat(fullPath);
// this.stdout(fullPath);
if (path === '.resource') {
const resourcePaths = dirPaths(fullPath);
for (let j = 0; j < resourcePaths.length; j++) {
const resourcePath = resourcePaths[j];
resourceCount++;
const fullResourcePath = `${fullPath}/${resourcePath}`;
const isEncrypted = await EncryptionService.instance().fileIsEncrypted(fullResourcePath);
if (isEncrypted) {
encryptedResourceCount++;
encryptedPaths.push(fullResourcePath);
} else {
decryptedPaths.push(fullResourcePath);
}
}
} else if (stat.isDirectory()) {
continue;
} else {
const content = await fs.readFile(fullPath, 'utf8');
const item = await BaseItem.unserialize(content);
const ItemClass = BaseItem.itemClass(item);
if (!ItemClass.encryptionSupported()) {
otherItemCount++;
continue;
}
itemCount++;
const isEncrypted = await EncryptionService.instance().itemIsEncrypted(item);
if (isEncrypted) {
encryptedItemCount++;
encryptedPaths.push(fullPath);
} else {
decryptedPaths.push(fullPath);
}
}
}
this.stdout(`Encrypted items: ${encryptedItemCount}/${itemCount}`);
this.stdout(`Encrypted resources: ${encryptedResourceCount}/${resourceCount}`);
this.stdout(`Other items (never encrypted): ${otherItemCount}`);
if (options.verbose) {
this.stdout('');
this.stdout('# Encrypted paths');
this.stdout('');
for (let i = 0; i < encryptedPaths.length; i++) {
const path = encryptedPaths[i];
this.stdout(path);
}
this.stdout('');
this.stdout('# Decrypted paths');
this.stdout('');
for (let i = 0; i < decryptedPaths.length; i++) {
const path = decryptedPaths[i];
this.stdout(path);
}
}
return;
}
}
}
module.exports = Command;