496 lines
20 KiB
JavaScript
496 lines
20 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.hasSessionSupport = exports.CryptoConnection = exports.Connection = void 0;
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const timers_1 = require("timers");
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const constants_1 = require("../constants");
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const error_1 = require("../error");
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const mongo_types_1 = require("../mongo_types");
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const sessions_1 = require("../sessions");
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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 message_stream_1 = require("./message_stream");
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const stream_description_1 = require("./stream_description");
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const shared_1 = require("./wire_protocol/shared");
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/** @internal */
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const kStream = Symbol('stream');
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/** @internal */
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const kQueue = Symbol('queue');
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/** @internal */
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const kMessageStream = Symbol('messageStream');
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/** @internal */
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const kGeneration = Symbol('generation');
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/** @internal */
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const kLastUseTime = Symbol('lastUseTime');
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/** @internal */
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const kClusterTime = Symbol('clusterTime');
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/** @internal */
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const kDescription = Symbol('description');
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/** @internal */
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const kHello = Symbol('hello');
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/** @internal */
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const kAutoEncrypter = Symbol('autoEncrypter');
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/** @internal */
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const kDelayedTimeoutId = Symbol('delayedTimeoutId');
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const INVALID_QUEUE_SIZE = 'Connection internal queue contains more than 1 operation description';
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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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var _a, _b;
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super();
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this.id = options.id;
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this.address = streamIdentifier(stream, options);
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this.socketTimeoutMS = (_a = options.socketTimeoutMS) !== null && _a !== void 0 ? _a : 0;
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this.monitorCommands = options.monitorCommands;
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this.serverApi = options.serverApi;
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this.closed = false;
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this.destroyed = false;
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this[kHello] = null;
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this[kClusterTime] = null;
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this[kDescription] = new stream_description_1.StreamDescription(this.address, options);
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this[kGeneration] = options.generation;
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this[kLastUseTime] = (0, utils_1.now)();
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// setup parser stream and message handling
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this[kQueue] = new Map();
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this[kMessageStream] = new message_stream_1.MessageStream({
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...options,
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maxBsonMessageSize: (_b = this.hello) === null || _b === void 0 ? void 0 : _b.maxBsonMessageSize
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});
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this[kStream] = stream;
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this[kDelayedTimeoutId] = null;
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this[kMessageStream].on('message', message => this.onMessage(message));
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this[kMessageStream].on('error', error => this.onError(error));
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this[kStream].on('close', () => this.onClose());
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this[kStream].on('timeout', () => this.onTimeout());
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this[kStream].on('error', () => {
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/* ignore errors, listen to `close` instead */
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});
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// hook the message stream up to the passed in stream
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this[kStream].pipe(this[kMessageStream]);
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this[kMessageStream].pipe(this[kStream]);
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}
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get description() {
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return this[kDescription];
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}
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get hello() {
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return this[kHello];
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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[kDescription].receiveResponse(response);
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this[kDescription] = Object.freeze(this[kDescription]);
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// TODO: remove this, and only use the `StreamDescription` in the future
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this[kHello] = response;
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}
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// Set the whether the message stream is for a monitoring connection.
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set isMonitoringConnection(value) {
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this[kMessageStream].isMonitoringConnection = value;
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}
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get isMonitoringConnection() {
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return this[kMessageStream].isMonitoringConnection;
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}
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get serviceId() {
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var _a;
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return (_a = this.hello) === null || _a === void 0 ? void 0 : _a.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 generation() {
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return this[kGeneration] || 0;
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}
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set generation(generation) {
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this[kGeneration] = generation;
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}
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get idleTime() {
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return (0, utils_1.calculateDurationInMs)(this[kLastUseTime]);
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}
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get clusterTime() {
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return this[kClusterTime];
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}
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get stream() {
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return this[kStream];
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}
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markAvailable() {
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this[kLastUseTime] = (0, utils_1.now)();
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}
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onError(error) {
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if (this.closed) {
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return;
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}
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this[kStream].destroy(error);
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this.closed = true;
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for (const op of this[kQueue].values()) {
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op.cb(error);
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}
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this[kQueue].clear();
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this.emit(Connection.CLOSE);
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}
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onClose() {
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if (this.closed) {
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return;
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}
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this.closed = true;
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const message = `connection ${this.id} to ${this.address} closed`;
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for (const op of this[kQueue].values()) {
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op.cb(new error_1.MongoNetworkError(message));
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}
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this[kQueue].clear();
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this.emit(Connection.CLOSE);
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}
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onTimeout() {
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if (this.closed) {
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return;
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}
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this[kDelayedTimeoutId] = (0, timers_1.setTimeout)(() => {
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this[kStream].destroy();
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this.closed = true;
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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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for (const op of this[kQueue].values()) {
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op.cb(new error_1.MongoNetworkTimeoutError(message, { beforeHandshake }));
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}
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this[kQueue].clear();
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this.emit(Connection.CLOSE);
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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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onMessage(message) {
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var _a;
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const delayedTimeoutId = this[kDelayedTimeoutId];
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if (delayedTimeoutId != null) {
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(0, timers_1.clearTimeout)(delayedTimeoutId);
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this[kDelayedTimeoutId] = null;
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}
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const socketTimeoutMS = (_a = this[kStream].timeout) !== null && _a !== void 0 ? _a : 0;
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this[kStream].setTimeout(0);
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// always emit the message, in case we are streaming
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this.emit('message', message);
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let operationDescription = this[kQueue].get(message.responseTo);
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if (!operationDescription && this.isMonitoringConnection) {
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// This is how we recover when the initial hello's requestId is not
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// the responseTo when hello responses have been skipped:
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// First check if the map is of invalid size
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if (this[kQueue].size > 1) {
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this.onError(new error_1.MongoRuntimeError(INVALID_QUEUE_SIZE));
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}
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else {
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// Get the first orphaned operation description.
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const entry = this[kQueue].entries().next();
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if (entry.value != null) {
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const [requestId, orphaned] = entry.value;
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// If the orphaned operation description exists then set it.
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operationDescription = orphaned;
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// Remove the entry with the bad request id from the queue.
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this[kQueue].delete(requestId);
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}
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}
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}
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if (!operationDescription) {
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return;
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}
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const callback = operationDescription.cb;
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// SERVER-45775: For exhaust responses we should be able to use the same requestId to
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// track response, however the server currently synthetically produces remote requests
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// making the `responseTo` change on each response
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this[kQueue].delete(message.responseTo);
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if ('moreToCome' in message && message.moreToCome) {
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// If the operation description check above does find an orphaned
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// description and sets the operationDescription then this line will put one
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// back in the queue with the correct requestId and will resolve not being able
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// to find the next one via the responseTo of the next streaming hello.
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this[kQueue].set(message.requestId, operationDescription);
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this[kStream].setTimeout(socketTimeoutMS);
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}
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try {
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// Pass in the entire description because it has BSON parsing options
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message.parse(operationDescription);
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}
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catch (err) {
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// If this error is generated by our own code, it will already have the correct class applied
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// if it is not, then it is coming from a catastrophic data parse failure or the BSON library
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// in either case, it should not be wrapped
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callback(err);
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return;
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}
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if (message.documents[0]) {
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const document = message.documents[0];
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const session = operationDescription.session;
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if (session) {
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(0, sessions_1.updateSessionFromResponse)(session, document);
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}
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if (document.$clusterTime) {
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this[kClusterTime] = document.$clusterTime;
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this.emit(Connection.CLUSTER_TIME_RECEIVED, document.$clusterTime);
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}
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if (operationDescription.command) {
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if (document.writeConcernError) {
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callback(new error_1.MongoWriteConcernError(document.writeConcernError, document));
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return;
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}
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if (document.ok === 0 || document.$err || document.errmsg || document.code) {
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callback(new error_1.MongoServerError(document));
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return;
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}
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}
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else {
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// Pre 3.2 support
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if (document.ok === 0 || document.$err || document.errmsg) {
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callback(new error_1.MongoServerError(document));
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return;
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}
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}
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}
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callback(undefined, message.documents[0]);
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}
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destroy(options, callback) {
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if (typeof options === 'function') {
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callback = options;
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options = { force: false };
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}
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this.removeAllListeners(Connection.PINNED);
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this.removeAllListeners(Connection.UNPINNED);
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options = Object.assign({ force: false }, options);
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if (this[kStream] == null || this.destroyed) {
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this.destroyed = true;
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if (typeof callback === 'function') {
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callback();
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}
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return;
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}
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if (options.force) {
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this[kStream].destroy();
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this.destroyed = true;
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if (typeof callback === 'function') {
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callback();
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}
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return;
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}
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this[kStream].end(() => {
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this.destroyed = true;
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if (typeof callback === 'function') {
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callback();
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}
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});
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}
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command(ns, cmd, options, callback) {
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const readPreference = (0, shared_1.getReadPreference)(cmd, options);
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const shouldUseOpMsg = supportsOpMsg(this);
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const session = options === null || options === void 0 ? void 0 : options.session;
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let clusterTime = this.clusterTime;
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let finalCmd = Object.assign({}, cmd);
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if (this.serverApi) {
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const { version, strict, deprecationErrors } = this.serverApi;
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finalCmd.apiVersion = version;
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if (strict != null)
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finalCmd.apiStrict = strict;
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if (deprecationErrors != null)
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finalCmd.apiDeprecationErrors = deprecationErrors;
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}
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if (hasSessionSupport(this) && 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 err = (0, sessions_1.applySession)(session, finalCmd, options);
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if (err) {
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return callback(err);
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}
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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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finalCmd.$clusterTime = clusterTime;
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}
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if ((0, shared_1.isSharded)(this) && !shouldUseOpMsg && readPreference && readPreference.mode !== 'primary') {
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finalCmd = {
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$query: finalCmd,
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$readPreference: readPreference.toJSON()
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};
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}
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const commandOptions = Object.assign({
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command: true,
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numberToSkip: 0,
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numberToReturn: -1,
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checkKeys: false,
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// This value is not overridable
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secondaryOk: readPreference.secondaryOk()
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}, options);
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const cmdNs = `${ns.db}.$cmd`;
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const message = shouldUseOpMsg
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? new commands_1.Msg(cmdNs, finalCmd, commandOptions)
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: new commands_1.Query(cmdNs, finalCmd, commandOptions);
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try {
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write(this, message, commandOptions, callback);
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}
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catch (err) {
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callback(err);
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}
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}
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}
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exports.Connection = Connection;
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/** @event */
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Connection.COMMAND_STARTED = constants_1.COMMAND_STARTED;
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/** @event */
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Connection.COMMAND_SUCCEEDED = constants_1.COMMAND_SUCCEEDED;
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/** @event */
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Connection.COMMAND_FAILED = constants_1.COMMAND_FAILED;
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/** @event */
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Connection.CLUSTER_TIME_RECEIVED = constants_1.CLUSTER_TIME_RECEIVED;
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/** @event */
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Connection.CLOSE = constants_1.CLOSE;
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/** @event */
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Connection.MESSAGE = constants_1.MESSAGE;
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/** @event */
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Connection.PINNED = constants_1.PINNED;
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/** @event */
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Connection.UNPINNED = constants_1.UNPINNED;
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/** @internal */
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class CryptoConnection extends Connection {
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constructor(stream, options) {
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super(stream, options);
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this[kAutoEncrypter] = options.autoEncrypter;
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}
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/** @internal @override */
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command(ns, cmd, options, callback) {
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const autoEncrypter = this[kAutoEncrypter];
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if (!autoEncrypter) {
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return callback(new error_1.MongoMissingDependencyError('No AutoEncrypter available for encryption'));
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}
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const serverWireVersion = (0, utils_1.maxWireVersion)(this);
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if (serverWireVersion === 0) {
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// This means the initial handshake hasn't happened yet
|
||
|
|
return super.command(ns, cmd, options, callback);
|
||
|
|
}
|
||
|
|
if (serverWireVersion < 8) {
|
||
|
|
callback(new error_1.MongoCompatibilityError('Auto-encryption requires a minimum MongoDB version of 4.2'));
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
// 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;
|
||
|
|
autoEncrypter.encrypt(ns.toString(), cmd, options, (err, encrypted) => {
|
||
|
|
if (err || encrypted == null) {
|
||
|
|
callback(err, null);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
// 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()) {
|
||
|
|
encrypted.indexes[offset].key = index;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
super.command(ns, encrypted, options, (err, response) => {
|
||
|
|
if (err || response == null) {
|
||
|
|
callback(err, response);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
autoEncrypter.decrypt(response, options, callback);
|
||
|
|
});
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|
||
|
|
exports.CryptoConnection = CryptoConnection;
|
||
|
|
/** @internal */
|
||
|
|
function hasSessionSupport(conn) {
|
||
|
|
const description = conn.description;
|
||
|
|
return description.logicalSessionTimeoutMinutes != null || !!description.loadBalanced;
|
||
|
|
}
|
||
|
|
exports.hasSessionSupport = hasSessionSupport;
|
||
|
|
function supportsOpMsg(conn) {
|
||
|
|
const description = conn.description;
|
||
|
|
if (description == null) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
return (0, utils_1.maxWireVersion)(conn) >= 6 && !description.__nodejs_mock_server__;
|
||
|
|
}
|
||
|
|
function streamIdentifier(stream, options) {
|
||
|
|
if (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 utils_1.HostAddress.fromHostPort(remoteAddress, remotePort).toString();
|
||
|
|
}
|
||
|
|
return (0, utils_1.uuidV4)().toString('hex');
|
||
|
|
}
|
||
|
|
function write(conn, command, options, callback) {
|
||
|
|
options = options !== null && options !== void 0 ? options : {};
|
||
|
|
const operationDescription = {
|
||
|
|
requestId: command.requestId,
|
||
|
|
cb: callback,
|
||
|
|
session: options.session,
|
||
|
|
noResponse: typeof options.noResponse === 'boolean' ? options.noResponse : false,
|
||
|
|
documentsReturnedIn: options.documentsReturnedIn,
|
||
|
|
command: !!options.command,
|
||
|
|
// for BSON parsing
|
||
|
|
promoteLongs: typeof options.promoteLongs === 'boolean' ? options.promoteLongs : true,
|
||
|
|
promoteValues: typeof options.promoteValues === 'boolean' ? options.promoteValues : true,
|
||
|
|
promoteBuffers: typeof options.promoteBuffers === 'boolean' ? options.promoteBuffers : false,
|
||
|
|
bsonRegExp: typeof options.bsonRegExp === 'boolean' ? options.bsonRegExp : false,
|
||
|
|
enableUtf8Validation: typeof options.enableUtf8Validation === 'boolean' ? options.enableUtf8Validation : true,
|
||
|
|
raw: typeof options.raw === 'boolean' ? options.raw : false,
|
||
|
|
started: 0
|
||
|
|
};
|
||
|
|
if (conn[kDescription] && conn[kDescription].compressor) {
|
||
|
|
operationDescription.agreedCompressor = conn[kDescription].compressor;
|
||
|
|
if (conn[kDescription].zlibCompressionLevel) {
|
||
|
|
operationDescription.zlibCompressionLevel = conn[kDescription].zlibCompressionLevel;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (typeof options.socketTimeoutMS === 'number') {
|
||
|
|
conn[kStream].setTimeout(options.socketTimeoutMS);
|
||
|
|
}
|
||
|
|
else if (conn.socketTimeoutMS !== 0) {
|
||
|
|
conn[kStream].setTimeout(conn.socketTimeoutMS);
|
||
|
|
}
|
||
|
|
// if command monitoring is enabled we need to modify the callback here
|
||
|
|
if (conn.monitorCommands) {
|
||
|
|
conn.emit(Connection.COMMAND_STARTED, new command_monitoring_events_1.CommandStartedEvent(conn, command));
|
||
|
|
operationDescription.started = (0, utils_1.now)();
|
||
|
|
operationDescription.cb = (err, reply) => {
|
||
|
|
if (err) {
|
||
|
|
conn.emit(Connection.COMMAND_FAILED, new command_monitoring_events_1.CommandFailedEvent(conn, command, err, operationDescription.started));
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
if (reply && (reply.ok === 0 || reply.$err)) {
|
||
|
|
conn.emit(Connection.COMMAND_FAILED, new command_monitoring_events_1.CommandFailedEvent(conn, command, reply, operationDescription.started));
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
conn.emit(Connection.COMMAND_SUCCEEDED, new command_monitoring_events_1.CommandSucceededEvent(conn, command, reply, operationDescription.started));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (typeof callback === 'function') {
|
||
|
|
callback(err, reply);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
if (!operationDescription.noResponse) {
|
||
|
|
conn[kQueue].set(operationDescription.requestId, operationDescription);
|
||
|
|
}
|
||
|
|
try {
|
||
|
|
conn[kMessageStream].writeCommand(command, operationDescription);
|
||
|
|
}
|
||
|
|
catch (e) {
|
||
|
|
if (!operationDescription.noResponse) {
|
||
|
|
conn[kQueue].delete(operationDescription.requestId);
|
||
|
|
operationDescription.cb(e);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (operationDescription.noResponse) {
|
||
|
|
operationDescription.cb();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
//# sourceMappingURL=connection.js.map
|