You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
363 lines
17 KiB
JavaScript
363 lines
17 KiB
JavaScript
10 months ago
|
"use strict";
|
||
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
||
|
|
exports.StateMachine = void 0;
|
||
|
|
const fs = require("fs/promises");
|
||
|
|
const net = require("net");
|
||
|
|
const tls = require("tls");
|
||
|
|
const bson_1 = require("../bson");
|
||
|
|
const deps_1 = require("../deps");
|
||
|
|
const utils_1 = require("../utils");
|
||
|
|
const errors_1 = require("./errors");
|
||
|
|
let socks = null;
|
||
|
|
function loadSocks() {
|
||
|
|
if (socks == null) {
|
||
|
|
const socksImport = (0, deps_1.getSocks)();
|
||
|
|
if ('kModuleError' in socksImport) {
|
||
|
|
throw socksImport.kModuleError;
|
||
|
|
}
|
||
|
|
socks = socksImport;
|
||
|
|
}
|
||
|
|
return socks;
|
||
|
|
}
|
||
|
|
// libmongocrypt states
|
||
|
|
const MONGOCRYPT_CTX_ERROR = 0;
|
||
|
|
const MONGOCRYPT_CTX_NEED_MONGO_COLLINFO = 1;
|
||
|
|
const MONGOCRYPT_CTX_NEED_MONGO_MARKINGS = 2;
|
||
|
|
const MONGOCRYPT_CTX_NEED_MONGO_KEYS = 3;
|
||
|
|
const MONGOCRYPT_CTX_NEED_KMS_CREDENTIALS = 7;
|
||
|
|
const MONGOCRYPT_CTX_NEED_KMS = 4;
|
||
|
|
const MONGOCRYPT_CTX_READY = 5;
|
||
|
|
const MONGOCRYPT_CTX_DONE = 6;
|
||
|
|
const HTTPS_PORT = 443;
|
||
|
|
const stateToString = new Map([
|
||
|
|
[MONGOCRYPT_CTX_ERROR, 'MONGOCRYPT_CTX_ERROR'],
|
||
|
|
[MONGOCRYPT_CTX_NEED_MONGO_COLLINFO, 'MONGOCRYPT_CTX_NEED_MONGO_COLLINFO'],
|
||
|
|
[MONGOCRYPT_CTX_NEED_MONGO_MARKINGS, 'MONGOCRYPT_CTX_NEED_MONGO_MARKINGS'],
|
||
|
|
[MONGOCRYPT_CTX_NEED_MONGO_KEYS, 'MONGOCRYPT_CTX_NEED_MONGO_KEYS'],
|
||
|
|
[MONGOCRYPT_CTX_NEED_KMS_CREDENTIALS, 'MONGOCRYPT_CTX_NEED_KMS_CREDENTIALS'],
|
||
|
|
[MONGOCRYPT_CTX_NEED_KMS, 'MONGOCRYPT_CTX_NEED_KMS'],
|
||
|
|
[MONGOCRYPT_CTX_READY, 'MONGOCRYPT_CTX_READY'],
|
||
|
|
[MONGOCRYPT_CTX_DONE, 'MONGOCRYPT_CTX_DONE']
|
||
|
|
]);
|
||
|
|
const INSECURE_TLS_OPTIONS = [
|
||
|
|
'tlsInsecure',
|
||
|
|
'tlsAllowInvalidCertificates',
|
||
|
|
'tlsAllowInvalidHostnames',
|
||
|
|
// These options are disallowed by the spec, so we explicitly filter them out if provided, even
|
||
|
|
// though the StateMachine does not declare support for these options.
|
||
|
|
'tlsDisableOCSPEndpointCheck',
|
||
|
|
'tlsDisableCertificateRevocationCheck'
|
||
|
|
];
|
||
|
|
/**
|
||
|
|
* Helper function for logging. Enabled by setting the environment flag MONGODB_CRYPT_DEBUG.
|
||
|
|
* @param msg - Anything you want to be logged.
|
||
|
|
*/
|
||
|
|
function debug(msg) {
|
||
|
|
if (process.env.MONGODB_CRYPT_DEBUG) {
|
||
|
|
// eslint-disable-next-line no-console
|
||
|
|
console.error(msg);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @internal
|
||
|
|
* An internal class that executes across a MongoCryptContext until either
|
||
|
|
* a finishing state or an error is reached. Do not instantiate directly.
|
||
|
|
*/
|
||
|
|
class StateMachine {
|
||
|
|
constructor(options, bsonOptions = (0, bson_1.pluckBSONSerializeOptions)(options)) {
|
||
|
|
this.options = options;
|
||
|
|
this.bsonOptions = bsonOptions;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Executes the state machine according to the specification
|
||
|
|
*/
|
||
|
|
async execute(executor, context) {
|
||
|
|
const keyVaultNamespace = executor._keyVaultNamespace;
|
||
|
|
const keyVaultClient = executor._keyVaultClient;
|
||
|
|
const metaDataClient = executor._metaDataClient;
|
||
|
|
const mongocryptdClient = executor._mongocryptdClient;
|
||
|
|
const mongocryptdManager = executor._mongocryptdManager;
|
||
|
|
let result = null;
|
||
|
|
while (context.state !== MONGOCRYPT_CTX_DONE && context.state !== MONGOCRYPT_CTX_ERROR) {
|
||
|
|
debug(`[context#${context.id}] ${stateToString.get(context.state) || context.state}`);
|
||
|
|
switch (context.state) {
|
||
|
|
case MONGOCRYPT_CTX_NEED_MONGO_COLLINFO: {
|
||
|
|
const filter = (0, bson_1.deserialize)(context.nextMongoOperation());
|
||
|
|
if (!metaDataClient) {
|
||
|
|
throw new errors_1.MongoCryptError('unreachable state machine state: entered MONGOCRYPT_CTX_NEED_MONGO_COLLINFO but metadata client is undefined');
|
||
|
|
}
|
||
|
|
const collInfo = await this.fetchCollectionInfo(metaDataClient, context.ns, filter);
|
||
|
|
if (collInfo) {
|
||
|
|
context.addMongoOperationResponse(collInfo);
|
||
|
|
}
|
||
|
|
context.finishMongoOperation();
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
case MONGOCRYPT_CTX_NEED_MONGO_MARKINGS: {
|
||
|
|
const command = context.nextMongoOperation();
|
||
|
|
if (!mongocryptdClient) {
|
||
|
|
throw new errors_1.MongoCryptError('unreachable state machine state: entered MONGOCRYPT_CTX_NEED_MONGO_MARKINGS but mongocryptdClient is undefined');
|
||
|
|
}
|
||
|
|
// When we are using the shared library, we don't have a mongocryptd manager.
|
||
|
|
const markedCommand = mongocryptdManager
|
||
|
|
? await mongocryptdManager.withRespawn(this.markCommand.bind(this, mongocryptdClient, context.ns, command))
|
||
|
|
: await this.markCommand(mongocryptdClient, context.ns, command);
|
||
|
|
context.addMongoOperationResponse(markedCommand);
|
||
|
|
context.finishMongoOperation();
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
case MONGOCRYPT_CTX_NEED_MONGO_KEYS: {
|
||
|
|
const filter = context.nextMongoOperation();
|
||
|
|
const keys = await this.fetchKeys(keyVaultClient, keyVaultNamespace, filter);
|
||
|
|
if (keys.length === 0) {
|
||
|
|
// This is kind of a hack. For `rewrapManyDataKey`, we have tests that
|
||
|
|
// guarantee that when there are no matching keys, `rewrapManyDataKey` returns
|
||
|
|
// nothing. We also have tests for auto encryption that guarantee for `encrypt`
|
||
|
|
// we return an error when there are no matching keys. This error is generated in
|
||
|
|
// subsequent iterations of the state machine.
|
||
|
|
// Some apis (`encrypt`) throw if there are no filter matches and others (`rewrapManyDataKey`)
|
||
|
|
// do not. We set the result manually here, and let the state machine continue. `libmongocrypt`
|
||
|
|
// will inform us if we need to error by setting the state to `MONGOCRYPT_CTX_ERROR` but
|
||
|
|
// otherwise we'll return `{ v: [] }`.
|
||
|
|
result = { v: [] };
|
||
|
|
}
|
||
|
|
for await (const key of keys) {
|
||
|
|
context.addMongoOperationResponse((0, bson_1.serialize)(key));
|
||
|
|
}
|
||
|
|
context.finishMongoOperation();
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
case MONGOCRYPT_CTX_NEED_KMS_CREDENTIALS: {
|
||
|
|
const kmsProviders = await executor.askForKMSCredentials();
|
||
|
|
context.provideKMSProviders((0, bson_1.serialize)(kmsProviders));
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
case MONGOCRYPT_CTX_NEED_KMS: {
|
||
|
|
const requests = Array.from(this.requests(context));
|
||
|
|
await Promise.all(requests);
|
||
|
|
context.finishKMSRequests();
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
case MONGOCRYPT_CTX_READY: {
|
||
|
|
const finalizedContext = context.finalize();
|
||
|
|
// @ts-expect-error finalize can change the state, check for error
|
||
|
|
if (context.state === MONGOCRYPT_CTX_ERROR) {
|
||
|
|
const message = context.status.message || 'Finalization error';
|
||
|
|
throw new errors_1.MongoCryptError(message);
|
||
|
|
}
|
||
|
|
result = (0, bson_1.deserialize)(finalizedContext, this.options);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
default:
|
||
|
|
throw new errors_1.MongoCryptError(`Unknown state: ${context.state}`);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (context.state === MONGOCRYPT_CTX_ERROR || result == null) {
|
||
|
|
const message = context.status.message;
|
||
|
|
if (!message) {
|
||
|
|
debug(`unidentifiable error in MongoCrypt - received an error status from \`libmongocrypt\` but received no error message.`);
|
||
|
|
}
|
||
|
|
throw new errors_1.MongoCryptError(message ??
|
||
|
|
'unidentifiable error in MongoCrypt - received an error status from `libmongocrypt` but received no error message.');
|
||
|
|
}
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Handles the request to the KMS service. Exposed for testing purposes. Do not directly invoke.
|
||
|
|
* @param kmsContext - A C++ KMS context returned from the bindings
|
||
|
|
* @returns A promise that resolves when the KMS reply has be fully parsed
|
||
|
|
*/
|
||
|
|
kmsRequest(request) {
|
||
|
|
const parsedUrl = request.endpoint.split(':');
|
||
|
|
const port = parsedUrl[1] != null ? Number.parseInt(parsedUrl[1], 10) : HTTPS_PORT;
|
||
|
|
const options = {
|
||
|
|
host: parsedUrl[0],
|
||
|
|
servername: parsedUrl[0],
|
||
|
|
port
|
||
|
|
};
|
||
|
|
const message = request.message;
|
||
|
|
// TODO(NODE-3959): We can adopt `for-await on(socket, 'data')` with logic to control abort
|
||
|
|
// eslint-disable-next-line @typescript-eslint/no-misused-promises, no-async-promise-executor
|
||
|
|
return new Promise(async (resolve, reject) => {
|
||
|
|
const buffer = new utils_1.BufferPool();
|
||
|
|
// eslint-disable-next-line prefer-const
|
||
|
|
let socket;
|
||
|
|
let rawSocket;
|
||
|
|
function destroySockets() {
|
||
|
|
for (const sock of [socket, rawSocket]) {
|
||
|
|
if (sock) {
|
||
|
|
sock.removeAllListeners();
|
||
|
|
sock.destroy();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
function ontimeout() {
|
||
|
|
destroySockets();
|
||
|
|
reject(new errors_1.MongoCryptError('KMS request timed out'));
|
||
|
|
}
|
||
|
|
function onerror(err) {
|
||
|
|
destroySockets();
|
||
|
|
const mcError = new errors_1.MongoCryptError('KMS request failed', { cause: err });
|
||
|
|
reject(mcError);
|
||
|
|
}
|
||
|
|
if (this.options.proxyOptions && this.options.proxyOptions.proxyHost) {
|
||
|
|
rawSocket = net.connect({
|
||
|
|
host: this.options.proxyOptions.proxyHost,
|
||
|
|
port: this.options.proxyOptions.proxyPort || 1080
|
||
|
|
});
|
||
|
|
rawSocket.on('timeout', ontimeout);
|
||
|
|
rawSocket.on('error', onerror);
|
||
|
|
try {
|
||
|
|
// eslint-disable-next-line @typescript-eslint/no-var-requires
|
||
|
|
const events = require('events');
|
||
|
|
await events.once(rawSocket, 'connect');
|
||
|
|
socks ??= loadSocks();
|
||
|
|
options.socket = (await socks.SocksClient.createConnection({
|
||
|
|
existing_socket: rawSocket,
|
||
|
|
command: 'connect',
|
||
|
|
destination: { host: options.host, port: options.port },
|
||
|
|
proxy: {
|
||
|
|
// host and port are ignored because we pass existing_socket
|
||
|
|
host: 'iLoveJavaScript',
|
||
|
|
port: 0,
|
||
|
|
type: 5,
|
||
|
|
userId: this.options.proxyOptions.proxyUsername,
|
||
|
|
password: this.options.proxyOptions.proxyPassword
|
||
|
|
}
|
||
|
|
})).socket;
|
||
|
|
}
|
||
|
|
catch (err) {
|
||
|
|
return onerror(err);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
const tlsOptions = this.options.tlsOptions;
|
||
|
|
if (tlsOptions) {
|
||
|
|
const kmsProvider = request.kmsProvider;
|
||
|
|
const providerTlsOptions = tlsOptions[kmsProvider];
|
||
|
|
if (providerTlsOptions) {
|
||
|
|
const error = this.validateTlsOptions(kmsProvider, providerTlsOptions);
|
||
|
|
if (error)
|
||
|
|
reject(error);
|
||
|
|
try {
|
||
|
|
await this.setTlsOptions(providerTlsOptions, options);
|
||
|
|
}
|
||
|
|
catch (error) {
|
||
|
|
return onerror(error);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
socket = tls.connect(options, () => {
|
||
|
|
socket.write(message);
|
||
|
|
});
|
||
|
|
socket.once('timeout', ontimeout);
|
||
|
|
socket.once('error', onerror);
|
||
|
|
socket.on('data', data => {
|
||
|
|
buffer.append(data);
|
||
|
|
while (request.bytesNeeded > 0 && buffer.length) {
|
||
|
|
const bytesNeeded = Math.min(request.bytesNeeded, buffer.length);
|
||
|
|
request.addResponse(buffer.read(bytesNeeded));
|
||
|
|
}
|
||
|
|
if (request.bytesNeeded <= 0) {
|
||
|
|
// There's no need for any more activity on this socket at this point.
|
||
|
|
destroySockets();
|
||
|
|
resolve();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
});
|
||
|
|
}
|
||
|
|
*requests(context) {
|
||
|
|
for (let request = context.nextKMSRequest(); request != null; request = context.nextKMSRequest()) {
|
||
|
|
yield this.kmsRequest(request);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Validates the provided TLS options are secure.
|
||
|
|
*
|
||
|
|
* @param kmsProvider - The KMS provider name.
|
||
|
|
* @param tlsOptions - The client TLS options for the provider.
|
||
|
|
*
|
||
|
|
* @returns An error if any option is invalid.
|
||
|
|
*/
|
||
|
|
validateTlsOptions(kmsProvider, tlsOptions) {
|
||
|
|
const tlsOptionNames = Object.keys(tlsOptions);
|
||
|
|
for (const option of INSECURE_TLS_OPTIONS) {
|
||
|
|
if (tlsOptionNames.includes(option)) {
|
||
|
|
return new errors_1.MongoCryptError(`Insecure TLS options prohibited for ${kmsProvider}: ${option}`);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Sets only the valid secure TLS options.
|
||
|
|
*
|
||
|
|
* @param tlsOptions - The client TLS options for the provider.
|
||
|
|
* @param options - The existing connection options.
|
||
|
|
*/
|
||
|
|
async setTlsOptions(tlsOptions, options) {
|
||
|
|
if (tlsOptions.tlsCertificateKeyFile) {
|
||
|
|
const cert = await fs.readFile(tlsOptions.tlsCertificateKeyFile);
|
||
|
|
options.cert = options.key = cert;
|
||
|
|
}
|
||
|
|
if (tlsOptions.tlsCAFile) {
|
||
|
|
options.ca = await fs.readFile(tlsOptions.tlsCAFile);
|
||
|
|
}
|
||
|
|
if (tlsOptions.tlsCertificateKeyFilePassword) {
|
||
|
|
options.passphrase = tlsOptions.tlsCertificateKeyFilePassword;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Fetches collection info for a provided namespace, when libmongocrypt
|
||
|
|
* enters the `MONGOCRYPT_CTX_NEED_MONGO_COLLINFO` state. The result is
|
||
|
|
* used to inform libmongocrypt of the schema associated with this
|
||
|
|
* namespace. Exposed for testing purposes. Do not directly invoke.
|
||
|
|
*
|
||
|
|
* @param client - A MongoClient connected to the topology
|
||
|
|
* @param ns - The namespace to list collections from
|
||
|
|
* @param filter - A filter for the listCollections command
|
||
|
|
* @param callback - Invoked with the info of the requested collection, or with an error
|
||
|
|
*/
|
||
|
|
async fetchCollectionInfo(client, ns, filter) {
|
||
|
|
const { db } = utils_1.MongoDBCollectionNamespace.fromString(ns);
|
||
|
|
const collections = await client
|
||
|
|
.db(db)
|
||
|
|
.listCollections(filter, {
|
||
|
|
promoteLongs: false,
|
||
|
|
promoteValues: false
|
||
|
|
})
|
||
|
|
.toArray();
|
||
|
|
const info = collections.length > 0 ? (0, bson_1.serialize)(collections[0]) : null;
|
||
|
|
return info;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Calls to the mongocryptd to provide markings for a command.
|
||
|
|
* Exposed for testing purposes. Do not directly invoke.
|
||
|
|
* @param client - A MongoClient connected to a mongocryptd
|
||
|
|
* @param ns - The namespace (database.collection) the command is being executed on
|
||
|
|
* @param command - The command to execute.
|
||
|
|
* @param callback - Invoked with the serialized and marked bson command, or with an error
|
||
|
|
*/
|
||
|
|
async markCommand(client, ns, command) {
|
||
|
|
const options = { promoteLongs: false, promoteValues: false };
|
||
|
|
const { db } = utils_1.MongoDBCollectionNamespace.fromString(ns);
|
||
|
|
const rawCommand = (0, bson_1.deserialize)(command, options);
|
||
|
|
const response = await client.db(db).command(rawCommand, options);
|
||
|
|
return (0, bson_1.serialize)(response, this.bsonOptions);
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* Requests keys from the keyVault collection on the topology.
|
||
|
|
* Exposed for testing purposes. Do not directly invoke.
|
||
|
|
* @param client - A MongoClient connected to the topology
|
||
|
|
* @param keyVaultNamespace - The namespace (database.collection) of the keyVault Collection
|
||
|
|
* @param filter - The filter for the find query against the keyVault Collection
|
||
|
|
* @param callback - Invoked with the found keys, or with an error
|
||
|
|
*/
|
||
|
|
fetchKeys(client, keyVaultNamespace, filter) {
|
||
|
|
const { db: dbName, collection: collectionName } = utils_1.MongoDBCollectionNamespace.fromString(keyVaultNamespace);
|
||
|
|
return client
|
||
|
|
.db(dbName)
|
||
|
|
.collection(collectionName, { readConcern: { level: 'majority' } })
|
||
|
|
.find((0, bson_1.deserialize)(filter))
|
||
|
|
.toArray();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
exports.StateMachine = StateMachine;
|
||
|
|
//# sourceMappingURL=state_machine.js.map
|