Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 | 151x 151x 151x 151x 151x 151x 151x 151x 151x 151x 151x 151x 151x 151x 151x 151x 151x 151x 151x 151x 993331x 993331x 993331x 993258x 73x 151x 993331x 993331x 993331x 993331x 993331x 993331x 993331x 151x 151x 151x 151x 151x 151x 151x 993331x 993331x 993331x 993331x 993331x 993331x 993331x 993331x 993331x 993331x 993331x 993331x 993331x 993331x 993331x 993331x 993331x 25575141x 991809x 991809x 9879155x 7715750x 44x 4065617x 7669544x 8144558x 3203014x 7564x 993307x 993307x 2804x 2782x 2782x 2782x 993279x 18784x 974495x 974495x 974495x 974495x 1978148x 984841x 993307x 993307x 993307x 993307x 993307x 4065617x 4065617x 4065617x 4065617x 4065617x 7339x 7339x 7339x 7339x 4065617x 2713132x 2368x 2713132x 2713132x 1352485x 86x 4065123x 2602018x 4065123x 3604457x 187x 3604270x 80x 3604190x 290818x 4065123x 4065123x 4065123x 4065123x 4065055x 4065055x 4065055x 4065055x 4065055x 4064227x 348942x 3715285x 3715283x 3715283x 3682527x 3682527x 3682527x 3682527x 13962x 13962x 4065055x 4065617x 4065617x 4065123x 4065123x 1278386x 1278386x 4065123x 4065123x 4065123x 4065123x 4065123x 4065055x 4031469x 4031469x 2706660x 4031469x 3058653x 3058653x 4031469x 52454x 70x 52384x 3979015x 1208155x 3979015x 2836163x 1142852x 13962x 100420x 72025x 100420x 4037446x 4037446x 4036654x 3964701x 18975x 8141x 10834x 144x 106x 3964595x 28963x 28963x 28963x 13962x 13962x 2x 28963x 19669041x 4065055x 4065055x 4065055x 28715x 32x 4065023x 8144x 8144x 8144x 8144x 8144x 796x 796x 792x 796x 8144x 3715283x 3715283x 3713987x 3713987x 3682527x 3682527x 13962x 2x 46716x 5245x 5245x 5245x 5245x 41471x 1448x 41471x 3715283x 3715283x 3715283x 151x 993335x 993335x 993335x 3750452x 22x 22x 3750452x 3750452x 3750452x 4x 3750448x 3750448x 67913x 3682535x 3682535x 151x 9448x 9448x 46119x 46119x 46119x 46119x 9448x 36671x 6x 36665x 36665x 406x 36665x 33200x 352x 33200x 363x 363x 33200x 32988x 32848x 32848x 136x 100x 36x 36x 32848x | import { type Readable, Transform, type TransformCallback } from 'stream';
import { clearTimeout, setTimeout } from 'timers';
import {
type BSONSerializeOptions,
deserialize,
type DeserializeOptions,
type Document,
type ObjectId
} from '../bson';
import { type AutoEncrypter } from '../client-side-encryption/auto_encrypter';
import {
CLOSE,
CLUSTER_TIME_RECEIVED,
COMMAND_FAILED,
COMMAND_STARTED,
COMMAND_SUCCEEDED,
kDecorateResult,
PINNED,
UNPINNED
} from '../constants';
import {
MongoCompatibilityError,
MONGODB_ERROR_CODES,
MongoMissingDependencyError,
MongoNetworkError,
MongoNetworkTimeoutError,
MongoOperationTimeoutError,
MongoParseError,
MongoServerError,
MongoUnexpectedServerResponseError
} from '../error';
import type { ServerApi, SupportedNodeConnectionOptions } from '../mongo_client';
import { type MongoClientAuthProviders } from '../mongo_client_auth_providers';
import { MongoLoggableComponent, type MongoLogger, SeverityLevel } from '../mongo_logger';
import { type Abortable, type CancellationToken, TypedEventEmitter } from '../mongo_types';
import { ReadPreference, type ReadPreferenceLike } from '../read_preference';
import { ServerType } from '../sdam/common';
import { applySession, type ClientSession, updateSessionFromResponse } from '../sessions';
import { type TimeoutContext, TimeoutError } from '../timeout';
import {
BufferPool,
calculateDurationInMs,
type Callback,
decorateDecryptionResult,
HostAddress,
maxWireVersion,
type MongoDBNamespace,
noop,
now,
once,
squashError,
uuidV4
} from '../utils';
import type { WriteConcern } from '../write_concern';
import type { AuthContext } from './auth/auth_provider';
import type { MongoCredentials } from './auth/mongo_credentials';
import {
CommandFailedEvent,
CommandStartedEvent,
CommandSucceededEvent
} from './command_monitoring_events';
import {
OpCompressedRequest,
OpMsgRequest,
type OpMsgResponse,
OpQueryRequest,
type OpReply,
type WriteProtocolMessageType
} from './commands';
import type { Stream } from './connect';
import type { ClientMetadata } from './handshake/client_metadata';
import { StreamDescription, type StreamDescriptionOptions } from './stream_description';
import { type CompressorName, decompressResponse } from './wire_protocol/compression';
import { onData } from './wire_protocol/on_data';
import {
CursorResponse,
MongoDBResponse,
type MongoDBResponseConstructor
} from './wire_protocol/responses';
import { getReadPreference, isSharded } from './wire_protocol/shared';
/** @internal */
export interface CommandOptions extends BSONSerializeOptions {
secondaryOk?: boolean;
/** Specify read preference if command supports it */
readPreference?: ReadPreferenceLike;
monitoring?: boolean;
socketTimeoutMS?: number;
/** Session to use for the operation */
session?: ClientSession;
documentsReturnedIn?: string;
noResponse?: boolean;
omitReadPreference?: boolean;
omitMaxTimeMS?: boolean;
// TODO(NODE-2802): Currently the CommandOptions take a property willRetryWrite which is a hint
// from executeOperation that the txnNum should be applied to this command.
// Applying a session to a command should happen as part of command construction,
// most likely in the CommandOperation#executeCommand method, where we have access to
// the details we need to determine if a txnNum should also be applied.
willRetryWrite?: boolean;
writeConcern?: WriteConcern;
directConnection?: boolean;
/** @internal */
timeoutContext?: TimeoutContext;
}
/** @public */
export interface ProxyOptions {
proxyHost?: string;
proxyPort?: number;
proxyUsername?: string;
proxyPassword?: string;
}
/** @public */
export interface ConnectionOptions
extends SupportedNodeConnectionOptions,
StreamDescriptionOptions,
ProxyOptions {
// Internal creation info
id: number | '<monitor>';
generation: number;
hostAddress: HostAddress;
/** @internal */
autoEncrypter?: AutoEncrypter;
serverApi?: ServerApi;
monitorCommands: boolean;
/** @internal */
connectionType?: any;
credentials?: MongoCredentials;
/** @internal */
authProviders: MongoClientAuthProviders;
connectTimeoutMS?: number;
tls: boolean;
noDelay?: boolean;
socketTimeoutMS?: number;
cancellationToken?: CancellationToken;
metadata: ClientMetadata;
/** @internal */
extendedMetadata: Promise<Document>;
/** @internal */
mongoLogger?: MongoLogger | undefined;
}
/** @public */
export type ConnectionEvents = {
commandStarted(event: CommandStartedEvent): void;
commandSucceeded(event: CommandSucceededEvent): void;
commandFailed(event: CommandFailedEvent): void;
clusterTimeReceived(clusterTime: Document): void;
close(): void;
pinned(pinType: string): void;
unpinned(pinType: string): void;
};
/** @internal */
export function hasSessionSupport(conn: Connection): boolean {
const description = conn.description;
return description.logicalSessionTimeoutMinutes != null;
}
function streamIdentifier(stream: Stream, options: ConnectionOptions): string {
Iif (options.proxyHost) {
// If proxy options are specified, the properties of `stream` itself
// will not accurately reflect what endpoint this is connected to.
return options.hostAddress.toString();
}
const { remoteAddress, remotePort } = stream;
if (typeof remoteAddress === 'string' && typeof remotePort === 'number') {
return HostAddress.fromHostPort(remoteAddress, remotePort).toString();
}
return uuidV4().toString('hex');
}
/** @internal */
export class Connection extends TypedEventEmitter<ConnectionEvents> {
public id: number | '<monitor>';
public address: string;
public lastHelloMS = -1;
public serverApi?: ServerApi;
public helloOk = false;
public authContext?: AuthContext;
public delayedTimeoutId: NodeJS.Timeout | null = null;
public generation: number;
public accessToken?: string;
public readonly description: Readonly<StreamDescription>;
/**
* Represents if the connection has been established:
* - TCP handshake
* - TLS negotiated
* - mongodb handshake (saslStart, saslContinue), includes authentication
*
* Once connection is established, command logging can log events (if enabled)
*/
public established: boolean;
/** Indicates that the connection (including underlying TCP socket) has been closed. */
public closed = false;
private lastUseTime: number;
private clusterTime: Document | null = null;
private error: Error | null = null;
private dataEvents: AsyncGenerator<Buffer, void, void> | null = null;
private readonly socketTimeoutMS: number;
private readonly monitorCommands: boolean;
private readonly socket: Stream;
private readonly messageStream: Readable;
/** @event */
static readonly COMMAND_STARTED = COMMAND_STARTED;
/** @event */
static readonly COMMAND_SUCCEEDED = COMMAND_SUCCEEDED;
/** @event */
static readonly COMMAND_FAILED = COMMAND_FAILED;
/** @event */
static readonly CLUSTER_TIME_RECEIVED = CLUSTER_TIME_RECEIVED;
/** @event */
static readonly CLOSE = CLOSE;
/** @event */
static readonly PINNED = PINNED;
/** @event */
static readonly UNPINNED = UNPINNED;
constructor(stream: Stream, options: ConnectionOptions) {
super();
this.on('error', noop);
this.socket = stream;
this.id = options.id;
this.address = streamIdentifier(stream, options);
this.socketTimeoutMS = options.socketTimeoutMS ?? 0;
this.monitorCommands = options.monitorCommands;
this.serverApi = options.serverApi;
this.mongoLogger = options.mongoLogger;
this.established = false;
this.description = new StreamDescription(this.address, options);
this.generation = options.generation;
this.lastUseTime = now();
this.messageStream = this.socket
.on('error', this.onError.bind(this))
.pipe(new SizedMessageTransform({ connection: this }))
.on('error', this.onError.bind(this));
this.socket.on('close', this.onClose.bind(this));
this.socket.on('timeout', this.onTimeout.bind(this));
this.messageStream.pause();
}
public get hello() {
return this.description.hello;
}
// the `connect` method stores the result of the handshake hello on the connection
public set hello(response: Document | null) {
this.description.receiveResponse(response);
Object.freeze(this.description);
}
public get serviceId(): ObjectId | undefined {
return this.hello?.serviceId;
}
public get loadBalanced(): boolean {
return this.description.loadBalanced;
}
public get idleTime(): number {
return calculateDurationInMs(this.lastUseTime);
}
private get hasSessionSupport(): boolean {
return this.description.logicalSessionTimeoutMinutes != null;
}
private get supportsOpMsg(): boolean {
return (
this.description != null &&
maxWireVersion(this) >= 6 &&
!this.description.__nodejs_mock_server__
);
}
private get shouldEmitAndLogCommand(): boolean {
return (
(this.monitorCommands ||
(this.established &&
!this.authContext?.reauthenticating &&
this.mongoLogger?.willLog(MongoLoggableComponent.COMMAND, SeverityLevel.DEBUG))) ??
false
);
}
public markAvailable(): void {
this.lastUseTime = now();
}
public onError(error: Error) {
this.cleanup(error);
}
private onClose() {
const message = `connection ${this.id} to ${this.address} closed`;
this.cleanup(new MongoNetworkError(message));
}
private onTimeout() {
this.delayedTimeoutId = setTimeout(() => {
const message = `connection ${this.id} to ${this.address} timed out`;
const beforeHandshake = this.hello == null;
this.cleanup(new MongoNetworkTimeoutError(message, { beforeHandshake }));
}, 1).unref(); // No need for this timer to hold the event loop open
}
public destroy(): void {
if (this.closed) {
return;
}
// load balanced mode requires that these listeners remain on the connection
// after cleanup on timeouts, errors or close so we remove them before calling
// cleanup.
this.removeAllListeners(Connection.PINNED);
this.removeAllListeners(Connection.UNPINNED);
const message = `connection ${this.id} to ${this.address} closed`;
this.cleanup(new MongoNetworkError(message));
}
/**
* A method that cleans up the connection. When `force` is true, this method
* forcibly destroys the socket.
*
* If an error is provided, any in-flight operations will be closed with the error.
*
* This method does nothing if the connection is already closed.
*/
private cleanup(error: Error): void {
if (this.closed) {
return;
}
this.socket.destroy();
this.error = error;
this.dataEvents?.throw(error).then(undefined, squashError);
this.closed = true;
this.emit(Connection.CLOSE);
}
private prepareCommand(db: string, command: Document, options: CommandOptions) {
let cmd = { ...command };
const readPreference = getReadPreference(options);
const session = options?.session;
let clusterTime = this.clusterTime;
if (this.serverApi) {
const { version, strict, deprecationErrors } = this.serverApi;
cmd.apiVersion = version;
if (strict != null) cmd.apiStrict = strict;
if (deprecationErrors != null) cmd.apiDeprecationErrors = deprecationErrors;
}
if (this.hasSessionSupport && session) {
if (
session.clusterTime &&
clusterTime &&
session.clusterTime.clusterTime.greaterThan(clusterTime.clusterTime)
) {
clusterTime = session.clusterTime;
}
const sessionError = applySession(session, cmd, options);
if (sessionError) throw sessionError;
} else if (session?.explicit) {
throw new MongoCompatibilityError('Current topology does not support sessions');
}
// if we have a known cluster time, gossip it
if (clusterTime) {
cmd.$clusterTime = clusterTime;
}
// For standalone, drivers MUST NOT set $readPreference.
if (this.description.type !== ServerType.Standalone) {
if (
!isSharded(this) &&
!this.description.loadBalanced &&
this.supportsOpMsg &&
options.directConnection === true &&
readPreference?.mode === 'primary'
) {
// For mongos and load balancers with 'primary' mode, drivers MUST NOT set $readPreference.
// For all other types with a direct connection, if the read preference is 'primary'
// (driver sets 'primary' as default if no read preference is configured),
// the $readPreference MUST be set to 'primaryPreferred'
// to ensure that any server type can handle the request.
cmd.$readPreference = ReadPreference.primaryPreferred.toJSON();
} else if (isSharded(this) && !this.supportsOpMsg && readPreference?.mode !== 'primary') {
// When sending a read operation via OP_QUERY and the $readPreference modifier,
// the query MUST be provided using the $query modifier.
cmd = {
$query: cmd,
$readPreference: readPreference.toJSON()
};
} else if (readPreference?.mode !== 'primary') {
// For mode 'primary', drivers MUST NOT set $readPreference.
// For all other read preference modes (i.e. 'secondary', 'primaryPreferred', ...),
// drivers MUST set $readPreference
cmd.$readPreference = readPreference.toJSON();
}
}
const commandOptions = {
numberToSkip: 0,
numberToReturn: -1,
checkKeys: false,
// This value is not overridable
secondaryOk: readPreference.secondaryOk(),
...options
};
options.timeoutContext?.addMaxTimeMSToCommand(cmd, options);
const message = this.supportsOpMsg
? new OpMsgRequest(db, cmd, commandOptions)
: new OpQueryRequest(db, cmd, commandOptions);
return message;
}
private async *sendWire(
message: WriteProtocolMessageType,
options: CommandOptions & Abortable,
responseType?: MongoDBResponseConstructor
): AsyncGenerator<MongoDBResponse> {
this.throwIfAborted();
const timeout =
options.socketTimeoutMS ??
options?.timeoutContext?.getSocketTimeoutMS() ??
this.socketTimeoutMS;
this.socket.setTimeout(timeout);
try {
await this.writeCommand(message, {
agreedCompressor: this.description.compressor ?? 'none',
zlibCompressionLevel: this.description.zlibCompressionLevel,
timeoutContext: options.timeoutContext,
signal: options.signal
});
if (options.noResponse || message.moreToCome) {
yield MongoDBResponse.empty;
return;
}
this.throwIfAborted();
Iif (
options.timeoutContext?.csotEnabled() &&
options.timeoutContext.minRoundTripTime != null &&
options.timeoutContext.remainingTimeMS < options.timeoutContext.minRoundTripTime
) {
throw new MongoOperationTimeoutError(
'Server roundtrip time is greater than the time remaining'
);
}
for await (const response of this.readMany(options)) {
this.socket.setTimeout(0);
const bson = response.parse();
const document = (responseType ?? MongoDBResponse).make(bson);
yield document;
this.throwIfAborted();
this.socket.setTimeout(timeout);
}
} finally {
this.socket.setTimeout(0);
}
}
private async *sendCommand(
ns: MongoDBNamespace,
command: Document,
options: CommandOptions & Abortable,
responseType?: MongoDBResponseConstructor
) {
options?.signal?.throwIfAborted();
const message = this.prepareCommand(ns.db, command, options);
let started = 0;
if (this.shouldEmitAndLogCommand) {
started = now();
this.emitAndLogCommand(
this.monitorCommands,
Connection.COMMAND_STARTED,
message.databaseName,
this.established,
new CommandStartedEvent(this, message, this.description.serverConnectionId)
);
}
// If `documentsReturnedIn` not set or raw is not enabled, use input bson options
// Otherwise, support raw flag. Raw only works for cursors that hardcode firstBatch/nextBatch fields
const bsonOptions: DeserializeOptions =
options.documentsReturnedIn == null || !options.raw
? options
: {
...options,
raw: false,
fieldsAsRaw: { [options.documentsReturnedIn]: true }
};
/** MongoDBResponse instance or subclass */
let document: MongoDBResponse | undefined = undefined;
/** Cached result of a toObject call */
let object: Document | undefined = undefined;
try {
this.throwIfAborted();
for await (document of this.sendWire(message, options, responseType)) {
object = undefined;
if (options.session != null) {
updateSessionFromResponse(options.session, document);
}
if (document.$clusterTime) {
this.clusterTime = document.$clusterTime;
this.emit(Connection.CLUSTER_TIME_RECEIVED, document.$clusterTime);
}
if (document.ok === 0) {
if (options.timeoutContext?.csotEnabled() && document.isMaxTimeExpiredError) {
throw new MongoOperationTimeoutError('Server reported a timeout error', {
cause: new MongoServerError((object ??= document.toObject(bsonOptions)))
});
}
throw new MongoServerError((object ??= document.toObject(bsonOptions)));
}
if (this.shouldEmitAndLogCommand) {
this.emitAndLogCommand(
this.monitorCommands,
Connection.COMMAND_SUCCEEDED,
message.databaseName,
this.established,
new CommandSucceededEvent(
this,
message,
options.noResponse
? undefined
: message.moreToCome
? { ok: 1 }
: (object ??= document.toObject(bsonOptions)),
started,
this.description.serverConnectionId
)
);
}
if (responseType == null) {
yield (object ??= document.toObject(bsonOptions));
} else {
yield document;
}
this.throwIfAborted();
}
} catch (error) {
if (this.shouldEmitAndLogCommand) {
this.emitAndLogCommand(
this.monitorCommands,
Connection.COMMAND_FAILED,
message.databaseName,
this.established,
new CommandFailedEvent(this, message, error, started, this.description.serverConnectionId)
);
}
throw error;
}
}
public async command<T extends MongoDBResponseConstructor>(
ns: MongoDBNamespace,
command: Document,
options: CommandOptions | undefined,
responseType: T
): Promise<InstanceType<T>>;
public async command<T extends MongoDBResponseConstructor>(
ns: MongoDBNamespace,
command: Document,
options: CommandOptions | undefined,
responseType: T | undefined
): Promise<typeof responseType extends undefined ? Document : InstanceType<T>>;
public async command(
ns: MongoDBNamespace,
command: Document,
options?: CommandOptions
): Promise<Document>;
public async command(
ns: MongoDBNamespace,
command: Document,
options: CommandOptions & Abortable = {},
responseType?: MongoDBResponseConstructor
): Promise<Document> {
this.throwIfAborted();
options.signal?.throwIfAborted();
for await (const document of this.sendCommand(ns, command, options, responseType)) {
if (options.timeoutContext?.csotEnabled()) {
if (MongoDBResponse.is(document)) {
Iif (document.isMaxTimeExpiredError) {
throw new MongoOperationTimeoutError('Server reported a timeout error', {
cause: new MongoServerError(document.toObject())
});
}
} else {
if (
(Array.isArray(document?.writeErrors) &&
document.writeErrors.some(
error => error?.code === MONGODB_ERROR_CODES.MaxTimeMSExpired
)) ||
document?.writeConcernError?.code === MONGODB_ERROR_CODES.MaxTimeMSExpired
) {
throw new MongoOperationTimeoutError('Server reported a timeout error', {
cause: new MongoServerError(document)
});
}
}
}
return document;
}
throw new MongoUnexpectedServerResponseError('Unable to get response from server');
}
public exhaustCommand(
ns: MongoDBNamespace,
command: Document,
options: CommandOptions,
replyListener: Callback
) {
const exhaustLoop = async () => {
this.throwIfAborted();
for await (const reply of this.sendCommand(ns, command, options)) {
replyListener(undefined, reply);
this.throwIfAborted();
}
throw new MongoUnexpectedServerResponseError('Server ended moreToCome unexpectedly');
};
exhaustLoop().then(undefined, replyListener);
}
private 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).
*/
private async writeCommand(
command: WriteProtocolMessageType,
options: {
agreedCompressor?: CompressorName;
zlibCompressionLevel?: number;
timeoutContext?: TimeoutContext;
} & Abortable
): Promise<void> {
const finalCommand =
options.agreedCompressor === 'none' || !OpCompressedRequest.canCompress(command)
? command
: new 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 MongoOperationTimeoutError(
'Server roundtrip time is greater than the time remaining'
);
}
}
if (this.socket.write(buffer)) return;
const drainEvent = once<void>(this.socket, 'drain', options);
const timeout = options?.timeoutContext?.timeoutForSocketWrite;
const drained = timeout ? Promise.race([drainEvent, timeout]) : drainEvent;
try {
return await drained;
} catch (writeError) {
Iif (TimeoutError.is(writeError)) {
const timeoutError = new 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.
*/
private async *readMany(
options: {
timeoutContext?: TimeoutContext;
} & Abortable
): AsyncGenerator<OpMsgResponse | OpReply> {
try {
this.dataEvents = onData(this.messageStream, options);
this.messageStream.resume();
for await (const message of this.dataEvents) {
const response = await decompressResponse(message);
yield response;
if (!response.moreToCome) {
return;
}
}
} catch (readError) {
if (TimeoutError.is(readError)) {
const timeoutError = new 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();
}
}
}
/** @internal */
export class SizedMessageTransform extends Transform {
bufferPool: BufferPool;
connection: Connection;
constructor({ connection }: { connection: Connection }) {
super({ writableObjectMode: false, readableObjectMode: true });
this.bufferPool = new BufferPool();
this.connection = connection;
}
override _transform(chunk: Buffer, encoding: unknown, callback: TransformCallback): void {
if (this.connection.delayedTimeoutId != null) {
clearTimeout(this.connection.delayedTimeoutId);
this.connection.delayedTimeoutId = null;
}
this.bufferPool.append(chunk);
const sizeOfMessage = this.bufferPool.getInt32();
if (sizeOfMessage == null) {
return callback();
}
Iif (sizeOfMessage < 0) {
return callback(new MongoParseError(`Invalid message size: ${sizeOfMessage}, too small`));
}
if (sizeOfMessage > this.bufferPool.length) {
return callback();
}
const message = this.bufferPool.read(sizeOfMessage);
return callback(null, message);
}
}
/** @internal */
export class CryptoConnection extends Connection {
/** @internal */
autoEncrypter?: AutoEncrypter;
constructor(stream: Stream, options: ConnectionOptions) {
super(stream, options);
this.autoEncrypter = options.autoEncrypter;
}
public override async command<T extends MongoDBResponseConstructor>(
ns: MongoDBNamespace,
command: Document,
options: CommandOptions | undefined,
responseType: T
): Promise<InstanceType<T>>;
public override async command(
ns: MongoDBNamespace,
command: Document,
options?: CommandOptions
): Promise<Document>;
override async command<T extends MongoDBResponseConstructor>(
ns: MongoDBNamespace,
cmd: Document,
options?: CommandOptions,
responseType?: T | undefined
): Promise<Document> {
const { autoEncrypter } = this;
Iif (!autoEncrypter) {
// TODO(NODE-6065): throw a MongoRuntimeError in Node V7
// @ts-expect-error No cause provided because there is no underlying error.
throw new MongoMissingDependencyError('No AutoEncrypter available for encryption', {
dependencyName: 'n/a'
});
}
const serverWireVersion = maxWireVersion(this);
if (serverWireVersion === 0) {
// This means the initial handshake hasn't happened yet
return await super.command<T>(ns, cmd, options, responseType);
}
if (serverWireVersion < 8) {
throw new 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: Map<string, number> | null = cmd.find || cmd.findAndModify ? cmd.sort : null;
const indexKeys: Map<string, number>[] | null = cmd.createIndexes
? cmd.indexes.map((index: { key: Map<string, number> }) => 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 ?? MongoDBResponse
);
const result = await autoEncrypter.decrypt(encryptedResponse.toBytes(), options);
const decryptedResponse = responseType?.make(result) ?? deserialize(result, options);
if (autoEncrypter[kDecorateResult]) {
if (responseType == null) {
decorateDecryptionResult(decryptedResponse, encryptedResponse.toObject(), true);
} else Eif (decryptedResponse instanceof CursorResponse) {
decryptedResponse.encryptedResponse = encryptedResponse;
}
}
return decryptedResponse;
}
}
|