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554 lines
25 KiB
554 lines
25 KiB
3 months ago
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.CryptoConnection = exports.SizedMessageTransform = exports.Connection = void 0;
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exports.hasSessionSupport = hasSessionSupport;
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const stream_1 = require("stream");
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const timers_1 = require("timers");
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const bson_1 = require("../bson");
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const constants_1 = require("../constants");
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const error_1 = require("../error");
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const mongo_logger_1 = require("../mongo_logger");
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const mongo_types_1 = require("../mongo_types");
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const read_preference_1 = require("../read_preference");
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const common_1 = require("../sdam/common");
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const sessions_1 = require("../sessions");
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const timeout_1 = require("../timeout");
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const utils_1 = require("../utils");
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const command_monitoring_events_1 = require("./command_monitoring_events");
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const commands_1 = require("./commands");
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const stream_description_1 = require("./stream_description");
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const compression_1 = require("./wire_protocol/compression");
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const on_data_1 = require("./wire_protocol/on_data");
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const responses_1 = require("./wire_protocol/responses");
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const shared_1 = require("./wire_protocol/shared");
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/** @internal */
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function hasSessionSupport(conn) {
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const description = conn.description;
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return description.logicalSessionTimeoutMinutes != null;
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}
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function streamIdentifier(stream, options) {
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if (options.proxyHost) {
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// If proxy options are specified, the properties of `stream` itself
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// will not accurately reflect what endpoint this is connected to.
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return options.hostAddress.toString();
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}
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const { remoteAddress, remotePort } = stream;
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if (typeof remoteAddress === 'string' && typeof remotePort === 'number') {
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return utils_1.HostAddress.fromHostPort(remoteAddress, remotePort).toString();
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}
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return (0, utils_1.uuidV4)().toString('hex');
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}
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/** @internal */
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class Connection extends mongo_types_1.TypedEventEmitter {
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constructor(stream, options) {
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super();
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this.lastHelloMS = -1;
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this.helloOk = false;
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this.delayedTimeoutId = null;
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/** Indicates that the connection (including underlying TCP socket) has been closed. */
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this.closed = false;
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this.clusterTime = null;
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this.error = null;
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this.dataEvents = null;
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this.on('error', utils_1.noop);
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this.socket = stream;
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this.id = options.id;
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this.address = streamIdentifier(stream, options);
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this.socketTimeoutMS = options.socketTimeoutMS ?? 0;
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this.monitorCommands = options.monitorCommands;
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this.serverApi = options.serverApi;
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this.mongoLogger = options.mongoLogger;
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this.established = false;
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this.description = new stream_description_1.StreamDescription(this.address, options);
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this.generation = options.generation;
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this.lastUseTime = (0, utils_1.now)();
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this.messageStream = this.socket
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.on('error', this.onError.bind(this))
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.pipe(new SizedMessageTransform({ connection: this }))
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.on('error', this.onError.bind(this));
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this.socket.on('close', this.onClose.bind(this));
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this.socket.on('timeout', this.onTimeout.bind(this));
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this.messageStream.pause();
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}
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get hello() {
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return this.description.hello;
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}
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// the `connect` method stores the result of the handshake hello on the connection
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set hello(response) {
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this.description.receiveResponse(response);
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Object.freeze(this.description);
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}
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get serviceId() {
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return this.hello?.serviceId;
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}
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get loadBalanced() {
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return this.description.loadBalanced;
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}
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get idleTime() {
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return (0, utils_1.calculateDurationInMs)(this.lastUseTime);
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}
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get hasSessionSupport() {
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return this.description.logicalSessionTimeoutMinutes != null;
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}
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get supportsOpMsg() {
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return (this.description != null &&
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(0, utils_1.maxWireVersion)(this) >= 6 &&
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!this.description.__nodejs_mock_server__);
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}
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get shouldEmitAndLogCommand() {
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return ((this.monitorCommands ||
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(this.established &&
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!this.authContext?.reauthenticating &&
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this.mongoLogger?.willLog(mongo_logger_1.MongoLoggableComponent.COMMAND, mongo_logger_1.SeverityLevel.DEBUG))) ??
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false);
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}
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markAvailable() {
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this.lastUseTime = (0, utils_1.now)();
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}
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onError(error) {
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this.cleanup(error);
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}
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onClose() {
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const message = `connection ${this.id} to ${this.address} closed`;
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this.cleanup(new error_1.MongoNetworkError(message));
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}
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onTimeout() {
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this.delayedTimeoutId = (0, timers_1.setTimeout)(() => {
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const message = `connection ${this.id} to ${this.address} timed out`;
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const beforeHandshake = this.hello == null;
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this.cleanup(new error_1.MongoNetworkTimeoutError(message, { beforeHandshake }));
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}, 1).unref(); // No need for this timer to hold the event loop open
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}
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destroy() {
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if (this.closed) {
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return;
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}
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// load balanced mode requires that these listeners remain on the connection
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// after cleanup on timeouts, errors or close so we remove them before calling
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// cleanup.
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this.removeAllListeners(Connection.PINNED);
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this.removeAllListeners(Connection.UNPINNED);
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const message = `connection ${this.id} to ${this.address} closed`;
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this.cleanup(new error_1.MongoNetworkError(message));
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}
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/**
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* A method that cleans up the connection. When `force` is true, this method
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* forcibly destroys the socket.
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*
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* If an error is provided, any in-flight operations will be closed with the error.
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*
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* This method does nothing if the connection is already closed.
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*/
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cleanup(error) {
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if (this.closed) {
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return;
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}
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this.socket.destroy();
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this.error = error;
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this.dataEvents?.throw(error).then(undefined, utils_1.squashError);
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this.closed = true;
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this.emit(Connection.CLOSE);
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}
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prepareCommand(db, command, options) {
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let cmd = { ...command };
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const readPreference = (0, shared_1.getReadPreference)(options);
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const session = options?.session;
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let clusterTime = this.clusterTime;
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if (this.serverApi) {
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const { version, strict, deprecationErrors } = this.serverApi;
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cmd.apiVersion = version;
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if (strict != null)
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cmd.apiStrict = strict;
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if (deprecationErrors != null)
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cmd.apiDeprecationErrors = deprecationErrors;
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}
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if (this.hasSessionSupport && session) {
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if (session.clusterTime &&
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clusterTime &&
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session.clusterTime.clusterTime.greaterThan(clusterTime.clusterTime)) {
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clusterTime = session.clusterTime;
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}
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const sessionError = (0, sessions_1.applySession)(session, cmd, options);
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if (sessionError)
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throw sessionError;
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}
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else if (session?.explicit) {
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throw new error_1.MongoCompatibilityError('Current topology does not support sessions');
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}
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// if we have a known cluster time, gossip it
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if (clusterTime) {
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cmd.$clusterTime = clusterTime;
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}
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// For standalone, drivers MUST NOT set $readPreference.
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if (this.description.type !== common_1.ServerType.Standalone) {
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if (!(0, shared_1.isSharded)(this) &&
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!this.description.loadBalanced &&
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this.supportsOpMsg &&
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options.directConnection === true &&
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readPreference?.mode === 'primary') {
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// For mongos and load balancers with 'primary' mode, drivers MUST NOT set $readPreference.
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// For all other types with a direct connection, if the read preference is 'primary'
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// (driver sets 'primary' as default if no read preference is configured),
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// the $readPreference MUST be set to 'primaryPreferred'
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// to ensure that any server type can handle the request.
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cmd.$readPreference = read_preference_1.ReadPreference.primaryPreferred.toJSON();
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}
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else if ((0, shared_1.isSharded)(this) && !this.supportsOpMsg && readPreference?.mode !== 'primary') {
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// When sending a read operation via OP_QUERY and the $readPreference modifier,
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// the query MUST be provided using the $query modifier.
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cmd = {
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$query: cmd,
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$readPreference: readPreference.toJSON()
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};
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}
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else if (readPreference?.mode !== 'primary') {
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// For mode 'primary', drivers MUST NOT set $readPreference.
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// For all other read preference modes (i.e. 'secondary', 'primaryPreferred', ...),
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// drivers MUST set $readPreference
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cmd.$readPreference = readPreference.toJSON();
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}
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}
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const commandOptions = {
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numberToSkip: 0,
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numberToReturn: -1,
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checkKeys: false,
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// This value is not overridable
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secondaryOk: readPreference.secondaryOk(),
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...options
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};
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options.timeoutContext?.addMaxTimeMSToCommand(cmd, options);
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const message = this.supportsOpMsg
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? new commands_1.OpMsgRequest(db, cmd, commandOptions)
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: new commands_1.OpQueryRequest(db, cmd, commandOptions);
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return message;
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}
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async *sendWire(message, options, responseType) {
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this.throwIfAborted();
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const timeout = options.socketTimeoutMS ??
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options?.timeoutContext?.getSocketTimeoutMS() ??
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this.socketTimeoutMS;
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this.socket.setTimeout(timeout);
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try {
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await this.writeCommand(message, {
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agreedCompressor: this.description.compressor ?? 'none',
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zlibCompressionLevel: this.description.zlibCompressionLevel,
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timeoutContext: options.timeoutContext,
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signal: options.signal
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});
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if (options.noResponse || message.moreToCome) {
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yield responses_1.MongoDBResponse.empty;
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return;
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}
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this.throwIfAborted();
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if (options.timeoutContext?.csotEnabled() &&
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options.timeoutContext.minRoundTripTime != null &&
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options.timeoutContext.remainingTimeMS < options.timeoutContext.minRoundTripTime) {
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throw new error_1.MongoOperationTimeoutError('Server roundtrip time is greater than the time remaining');
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}
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for await (const response of this.readMany(options)) {
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this.socket.setTimeout(0);
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const bson = response.parse();
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const document = (responseType ?? responses_1.MongoDBResponse).make(bson);
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yield document;
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this.throwIfAborted();
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this.socket.setTimeout(timeout);
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}
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}
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finally {
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this.socket.setTimeout(0);
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}
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}
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async *sendCommand(ns, command, options, responseType) {
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options?.signal?.throwIfAborted();
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const message = this.prepareCommand(ns.db, command, options);
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let started = 0;
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if (this.shouldEmitAndLogCommand) {
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started = (0, utils_1.now)();
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this.emitAndLogCommand(this.monitorCommands, Connection.COMMAND_STARTED, message.databaseName, this.established, new command_monitoring_events_1.CommandStartedEvent(this, message, this.description.serverConnectionId));
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}
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// If `documentsReturnedIn` not set or raw is not enabled, use input bson options
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// Otherwise, support raw flag. Raw only works for cursors that hardcode firstBatch/nextBatch fields
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const bsonOptions = options.documentsReturnedIn == null || !options.raw
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? options
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: {
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...options,
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raw: false,
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fieldsAsRaw: { [options.documentsReturnedIn]: true }
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};
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/** MongoDBResponse instance or subclass */
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let document = undefined;
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/** Cached result of a toObject call */
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let object = undefined;
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try {
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this.throwIfAborted();
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for await (document of this.sendWire(message, options, responseType)) {
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object = undefined;
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if (options.session != null) {
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(0, sessions_1.updateSessionFromResponse)(options.session, document);
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}
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if (document.$clusterTime) {
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this.clusterTime = document.$clusterTime;
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this.emit(Connection.CLUSTER_TIME_RECEIVED, document.$clusterTime);
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}
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if (document.ok === 0) {
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if (options.timeoutContext?.csotEnabled() && document.isMaxTimeExpiredError) {
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throw new error_1.MongoOperationTimeoutError('Server reported a timeout error', {
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cause: new error_1.MongoServerError((object ??= document.toObject(bsonOptions)))
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});
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}
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throw new error_1.MongoServerError((object ??= document.toObject(bsonOptions)));
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}
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if (this.shouldEmitAndLogCommand) {
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this.emitAndLogCommand(this.monitorCommands, Connection.COMMAND_SUCCEEDED, message.databaseName, this.established, new command_monitoring_events_1.CommandSucceededEvent(this, message, options.noResponse
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? undefined
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: message.moreToCome
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? { ok: 1 }
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: (object ??= document.toObject(bsonOptions)), started, this.description.serverConnectionId));
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}
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if (responseType == null) {
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yield (object ??= document.toObject(bsonOptions));
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}
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else {
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yield document;
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}
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this.throwIfAborted();
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}
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}
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catch (error) {
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if (this.shouldEmitAndLogCommand) {
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this.emitAndLogCommand(this.monitorCommands, Connection.COMMAND_FAILED, message.databaseName, this.established, new command_monitoring_events_1.CommandFailedEvent(this, message, error, started, this.description.serverConnectionId));
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}
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throw error;
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}
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}
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async command(ns, command, options = {}, responseType) {
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this.throwIfAborted();
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options.signal?.throwIfAborted();
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for await (const document of this.sendCommand(ns, command, options, responseType)) {
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if (options.timeoutContext?.csotEnabled()) {
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if (responses_1.MongoDBResponse.is(document)) {
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if (document.isMaxTimeExpiredError) {
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throw new error_1.MongoOperationTimeoutError('Server reported a timeout error', {
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cause: new error_1.MongoServerError(document.toObject())
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});
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}
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}
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else {
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if ((Array.isArray(document?.writeErrors) &&
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document.writeErrors.some(error => error?.code === error_1.MONGODB_ERROR_CODES.MaxTimeMSExpired)) ||
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document?.writeConcernError?.code === error_1.MONGODB_ERROR_CODES.MaxTimeMSExpired) {
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throw new error_1.MongoOperationTimeoutError('Server reported a timeout error', {
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|
|
cause: new error_1.MongoServerError(document)
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return document;
|
||
|
|
}
|
||
|
|
throw new error_1.MongoUnexpectedServerResponseError('Unable to get response from server');
|
||
|
|
}
|
||
|
|
exhaustCommand(ns, command, options, replyListener) {
|
||
|
|
const exhaustLoop = async () => {
|
||
|
|
this.throwIfAborted();
|
||
|
|
for await (const reply of this.sendCommand(ns, command, options)) {
|
||
|
|
replyListener(undefined, reply);
|
||
|
|
this.throwIfAborted();
|
||
|
|
}
|
||
|
|
throw new error_1.MongoUnexpectedServerResponseError('Server ended moreToCome unexpectedly');
|
||
|
|
};
|
||
|
|
exhaustLoop().then(undefined, replyListener);
|
||
|
|
}
|
||
|
|
throwIfAborted() {
|
||
|
|
if (this.error)
|
||
|
|
throw this.error;
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @internal
|
||
|
|
*
|
||
|
|
* Writes an OP_MSG or OP_QUERY request to the socket, optionally compressing the command. This method
|
||
|
|
* waits until the socket's buffer has emptied (the Nodejs socket `drain` event has fired).
|
||
|
|
*/
|
||
|
|
async writeCommand(command, options) {
|
||
|
|
const finalCommand = options.agreedCompressor === 'none' || !commands_1.OpCompressedRequest.canCompress(command)
|
||
|
|
? command
|
||
|
|
: new commands_1.OpCompressedRequest(command, {
|
||
|
|
agreedCompressor: options.agreedCompressor ?? 'none',
|
||
|
|
zlibCompressionLevel: options.zlibCompressionLevel ?? 0
|
||
|
|
});
|
||
|
|
const buffer = Buffer.concat(await finalCommand.toBin());
|
||
|
|
if (options.timeoutContext?.csotEnabled()) {
|
||
|
|
if (options.timeoutContext.minRoundTripTime != null &&
|
||
|
|
options.timeoutContext.remainingTimeMS < options.timeoutContext.minRoundTripTime) {
|
||
|
|
throw new error_1.MongoOperationTimeoutError('Server roundtrip time is greater than the time remaining');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (this.socket.write(buffer))
|
||
|
|
return;
|
||
|
|
const drainEvent = (0, utils_1.once)(this.socket, 'drain', options);
|
||
|
|
const timeout = options?.timeoutContext?.timeoutForSocketWrite;
|
||
|
|
const drained = timeout ? Promise.race([drainEvent, timeout]) : drainEvent;
|
||
|
|
try {
|
||
|
|
return await drained;
|
||
|
|
}
|
||
|
|
catch (writeError) {
|
||
|
|
if (timeout_1.TimeoutError.is(writeError)) {
|
||
|
|
const timeoutError = new error_1.MongoOperationTimeoutError('Timed out at socket write');
|
||
|
|
this.onError(timeoutError);
|
||
|
|
throw timeoutError;
|
||
|
|
}
|
||
|
|
else if (writeError === options.signal?.reason) {
|
||
|
|
this.onError(writeError);
|
||
|
|
}
|
||
|
|
throw writeError;
|
||
|
|
}
|
||
|
|
finally {
|
||
|
|
timeout?.clear();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
/**
|
||
|
|
* @internal
|
||
|
|
*
|
||
|
|
* Returns an async generator that yields full wire protocol messages from the underlying socket. This function
|
||
|
|
* yields messages until `moreToCome` is false or not present in a response, or the caller cancels the request
|
||
|
|
* by calling `return` on the generator.
|
||
|
|
*
|
||
|
|
* Note that `for-await` loops call `return` automatically when the loop is exited.
|
||
|
|
*/
|
||
|
|
async *readMany(options) {
|
||
|
|
try {
|
||
|
|
this.dataEvents = (0, on_data_1.onData)(this.messageStream, options);
|
||
|
|
this.messageStream.resume();
|
||
|
|
for await (const message of this.dataEvents) {
|
||
|
|
const response = await (0, compression_1.decompressResponse)(message);
|
||
|
|
yield response;
|
||
|
|
if (!response.moreToCome) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
catch (readError) {
|
||
|
|
if (timeout_1.TimeoutError.is(readError)) {
|
||
|
|
const timeoutError = new error_1.MongoOperationTimeoutError(`Timed out during socket read (${readError.duration}ms)`);
|
||
|
|
this.dataEvents = null;
|
||
|
|
this.onError(timeoutError);
|
||
|
|
throw timeoutError;
|
||
|
|
}
|
||
|
|
else if (readError === options.signal?.reason) {
|
||
|
|
this.onError(readError);
|
||
|
|
}
|
||
|
|
throw readError;
|
||
|
|
}
|
||
|
|
finally {
|
||
|
|
this.dataEvents = null;
|
||
|
|
this.messageStream.pause();
|
||
|
|
this.throwIfAborted();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
exports.Connection = Connection;
|
||
|
|
/** @event */
|
||
|
|
Connection.COMMAND_STARTED = constants_1.COMMAND_STARTED;
|
||
|
|
/** @event */
|
||
|
|
Connection.COMMAND_SUCCEEDED = constants_1.COMMAND_SUCCEEDED;
|
||
|
|
/** @event */
|
||
|
|
Connection.COMMAND_FAILED = constants_1.COMMAND_FAILED;
|
||
|
|
/** @event */
|
||
|
|
Connection.CLUSTER_TIME_RECEIVED = constants_1.CLUSTER_TIME_RECEIVED;
|
||
|
|
/** @event */
|
||
|
|
Connection.CLOSE = constants_1.CLOSE;
|
||
|
|
/** @event */
|
||
|
|
Connection.PINNED = constants_1.PINNED;
|
||
|
|
/** @event */
|
||
|
|
Connection.UNPINNED = constants_1.UNPINNED;
|
||
|
|
/** @internal */
|
||
|
|
class SizedMessageTransform extends stream_1.Transform {
|
||
|
|
constructor({ connection }) {
|
||
|
|
super({ writableObjectMode: false, readableObjectMode: true });
|
||
|
|
this.bufferPool = new utils_1.BufferPool();
|
||
|
|
this.connection = connection;
|
||
|
|
}
|
||
|
|
_transform(chunk, encoding, callback) {
|
||
|
|
if (this.connection.delayedTimeoutId != null) {
|
||
|
|
(0, timers_1.clearTimeout)(this.connection.delayedTimeoutId);
|
||
|
|
this.connection.delayedTimeoutId = null;
|
||
|
|
}
|
||
|
|
this.bufferPool.append(chunk);
|
||
|
|
const sizeOfMessage = this.bufferPool.getInt32();
|
||
|
|
if (sizeOfMessage == null) {
|
||
|
|
return callback();
|
||
|
|
}
|
||
|
|
if (sizeOfMessage < 0) {
|
||
|
|
return callback(new error_1.MongoParseError(`Invalid message size: ${sizeOfMessage}, too small`));
|
||
|
|
}
|
||
|
|
if (sizeOfMessage > this.bufferPool.length) {
|
||
|
|
return callback();
|
||
|
|
}
|
||
|
|
const message = this.bufferPool.read(sizeOfMessage);
|
||
|
|
return callback(null, message);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
exports.SizedMessageTransform = SizedMessageTransform;
|
||
|
|
/** @internal */
|
||
|
|
class CryptoConnection extends Connection {
|
||
|
|
constructor(stream, options) {
|
||
|
|
super(stream, options);
|
||
|
|
this.autoEncrypter = options.autoEncrypter;
|
||
|
|
}
|
||
|
|
async command(ns, cmd, options, responseType) {
|
||
|
|
const { autoEncrypter } = this;
|
||
|
|
if (!autoEncrypter) {
|
||
|
|
// TODO(NODE-6065): throw a MongoRuntimeError in Node V7
|
||
|
|
// @ts-expect-error No cause provided because there is no underlying error.
|
||
|
|
throw new error_1.MongoMissingDependencyError('No AutoEncrypter available for encryption', {
|
||
|
|
dependencyName: 'n/a'
|
||
|
|
});
|
||
|
|
}
|
||
|
|
const serverWireVersion = (0, utils_1.maxWireVersion)(this);
|
||
|
|
if (serverWireVersion === 0) {
|
||
|
|
// This means the initial handshake hasn't happened yet
|
||
|
|
return await super.command(ns, cmd, options, responseType);
|
||
|
|
}
|
||
|
|
if (serverWireVersion < 8) {
|
||
|
|
throw new error_1.MongoCompatibilityError('Auto-encryption requires a minimum MongoDB version of 4.2');
|
||
|
|
}
|
||
|
|
// Save sort or indexKeys based on the command being run
|
||
|
|
// the encrypt API serializes our JS objects to BSON to pass to the native code layer
|
||
|
|
// and then deserializes the encrypted result, the protocol level components
|
||
|
|
// of the command (ex. sort) are then converted to JS objects potentially losing
|
||
|
|
// import key order information. These fields are never encrypted so we can save the values
|
||
|
|
// from before the encryption and replace them after encryption has been performed
|
||
|
|
const sort = cmd.find || cmd.findAndModify ? cmd.sort : null;
|
||
|
|
const indexKeys = cmd.createIndexes
|
||
|
|
? cmd.indexes.map((index) => index.key)
|
||
|
|
: null;
|
||
|
|
const encrypted = await autoEncrypter.encrypt(ns.toString(), cmd, options);
|
||
|
|
// Replace the saved values
|
||
|
|
if (sort != null && (cmd.find || cmd.findAndModify)) {
|
||
|
|
encrypted.sort = sort;
|
||
|
|
}
|
||
|
|
if (indexKeys != null && cmd.createIndexes) {
|
||
|
|
for (const [offset, index] of indexKeys.entries()) {
|
||
|
|
// @ts-expect-error `encrypted` is a generic "command", but we've narrowed for only `createIndexes` commands here
|
||
|
|
encrypted.indexes[offset].key = index;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
const encryptedResponse = await super.command(ns, encrypted, options,
|
||
|
|
// Eventually we want to require `responseType` which means we would satisfy `T` as the return type.
|
||
|
|
// In the meantime, we want encryptedResponse to always be _at least_ a MongoDBResponse if not a more specific subclass
|
||
|
|
// So that we can ensure we have access to the on-demand APIs for decorate response
|
||
|
|
responseType ?? responses_1.MongoDBResponse);
|
||
|
|
const result = await autoEncrypter.decrypt(encryptedResponse.toBytes(), options);
|
||
|
|
const decryptedResponse = responseType?.make(result) ?? (0, bson_1.deserialize)(result, options);
|
||
|
|
if (autoEncrypter[constants_1.kDecorateResult]) {
|
||
|
|
if (responseType == null) {
|
||
|
|
(0, utils_1.decorateDecryptionResult)(decryptedResponse, encryptedResponse.toObject(), true);
|
||
|
|
}
|
||
|
|
else if (decryptedResponse instanceof responses_1.CursorResponse) {
|
||
|
|
decryptedResponse.encryptedResponse = encryptedResponse;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return decryptedResponse;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
exports.CryptoConnection = CryptoConnection;
|
||
|
|
//# sourceMappingURL=connection.js.map
|