Your IP : 216.73.216.220
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.hasSessionSupport = exports.CryptoConnection = exports.APM_EVENTS = exports.Connection = void 0;
const message_stream_1 = require("./message_stream");
const stream_description_1 = require("./stream_description");
const command_monitoring_events_1 = require("./command_monitoring_events");
const sessions_1 = require("../sessions");
const utils_1 = require("../utils");
const error_1 = require("../error");
const commands_1 = require("./commands");
const bson_1 = require("../bson");
const shared_1 = require("./wire_protocol/shared");
const read_preference_1 = require("../read_preference");
const mongo_types_1 = require("../mongo_types");
/** @internal */
const kStream = Symbol('stream');
/** @internal */
const kQueue = Symbol('queue');
/** @internal */
const kMessageStream = Symbol('messageStream');
/** @internal */
const kGeneration = Symbol('generation');
/** @internal */
const kLastUseTime = Symbol('lastUseTime');
/** @internal */
const kClusterTime = Symbol('clusterTime');
/** @internal */
const kDescription = Symbol('description');
/** @internal */
const kIsMaster = Symbol('ismaster');
/** @internal */
const kAutoEncrypter = Symbol('autoEncrypter');
/** @internal */
const kFullResult = Symbol('fullResult');
/** @internal */
class Connection extends mongo_types_1.TypedEventEmitter {
constructor(stream, options) {
var _a, _b;
super();
this.id = options.id;
this.address = streamIdentifier(stream);
this.socketTimeoutMS = (_a = options.socketTimeoutMS) !== null && _a !== void 0 ? _a : 0;
this.monitorCommands = options.monitorCommands;
this.serverApi = options.serverApi;
this.closed = false;
this.destroyed = false;
this[kDescription] = new stream_description_1.StreamDescription(this.address, options);
this[kGeneration] = options.generation;
this[kLastUseTime] = (0, utils_1.now)();
// setup parser stream and message handling
this[kQueue] = new Map();
this[kMessageStream] = new message_stream_1.MessageStream({
...options,
maxBsonMessageSize: (_b = this.ismaster) === null || _b === void 0 ? void 0 : _b.maxBsonMessageSize
});
this[kMessageStream].on('message', messageHandler(this));
this[kStream] = stream;
stream.on('error', () => {
/* ignore errors, listen to `close` instead */
});
this[kMessageStream].on('error', error => this.handleIssue({ destroy: error }));
stream.on('close', () => this.handleIssue({ isClose: true }));
stream.on('timeout', () => this.handleIssue({ isTimeout: true, destroy: true }));
// hook the message stream up to the passed in stream
stream.pipe(this[kMessageStream]);
this[kMessageStream].pipe(stream);
}
get description() {
return this[kDescription];
}
get ismaster() {
return this[kIsMaster];
}
// the `connect` method stores the result of the handshake ismaster on the connection
set ismaster(response) {
this[kDescription].receiveResponse(response);
this[kDescription] = Object.freeze(this[kDescription]);
// TODO: remove this, and only use the `StreamDescription` in the future
this[kIsMaster] = response;
}
get serviceId() {
var _a;
return (_a = this.ismaster) === null || _a === void 0 ? void 0 : _a.serviceId;
}
get loadBalanced() {
return this.description.loadBalanced;
}
get generation() {
return this[kGeneration] || 0;
}
set generation(generation) {
this[kGeneration] = generation;
}
get idleTime() {
return (0, utils_1.calculateDurationInMs)(this[kLastUseTime]);
}
get clusterTime() {
return this[kClusterTime];
}
get stream() {
return this[kStream];
}
markAvailable() {
this[kLastUseTime] = (0, utils_1.now)();
}
handleIssue(issue) {
if (this.closed) {
return;
}
if (issue.destroy) {
this[kStream].destroy(typeof issue.destroy === 'boolean' ? undefined : issue.destroy);
}
this.closed = true;
for (const [, op] of this[kQueue]) {
if (issue.isTimeout) {
op.cb(new error_1.MongoNetworkTimeoutError(`connection ${this.id} to ${this.address} timed out`, {
beforeHandshake: this.ismaster == null
}));
}
else if (issue.isClose) {
op.cb(new error_1.MongoNetworkError(`connection ${this.id} to ${this.address} closed`));
}
else {
op.cb(typeof issue.destroy === 'boolean' ? undefined : issue.destroy);
}
}
this[kQueue].clear();
this.emit(Connection.CLOSE);
}
destroy(options, callback) {
if (typeof options === 'function') {
callback = options;
options = { force: false };
}
this.removeAllListeners(Connection.PINNED);
this.removeAllListeners(Connection.UNPINNED);
options = Object.assign({ force: false }, options);
if (this[kStream] == null || this.destroyed) {
this.destroyed = true;
if (typeof callback === 'function') {
callback();
}
return;
}
if (options.force) {
this[kStream].destroy();
this.destroyed = true;
if (typeof callback === 'function') {
callback();
}
return;
}
this[kStream].end(() => {
this.destroyed = true;
if (typeof callback === 'function') {
callback();
}
});
}
/** @internal */
command(ns, cmd, options, callback) {
if (!(ns instanceof utils_1.MongoDBNamespace)) {
// TODO(NODE-3483): Replace this with a MongoCommandError
throw new error_1.MongoRuntimeError('Must provide a MongoDBNamespace instance');
}
const readPreference = (0, shared_1.getReadPreference)(cmd, options);
const shouldUseOpMsg = supportsOpMsg(this);
const session = options === null || options === void 0 ? void 0 : options.session;
let clusterTime = this.clusterTime;
let finalCmd = Object.assign({}, cmd);
if (this.serverApi) {
const { version, strict, deprecationErrors } = this.serverApi;
finalCmd.apiVersion = version;
if (strict != null)
finalCmd.apiStrict = strict;
if (deprecationErrors != null)
finalCmd.apiDeprecationErrors = deprecationErrors;
}
if (hasSessionSupport(this) && session) {
if (session.clusterTime &&
clusterTime &&
session.clusterTime.clusterTime.greaterThan(clusterTime.clusterTime)) {
clusterTime = session.clusterTime;
}
const err = (0, sessions_1.applySession)(session, finalCmd, options);
if (err) {
return callback(err);
}
}
// if we have a known cluster time, gossip it
if (clusterTime) {
finalCmd.$clusterTime = clusterTime;
}
if ((0, shared_1.isSharded)(this) && !shouldUseOpMsg && readPreference && readPreference.mode !== 'primary') {
finalCmd = {
$query: finalCmd,
$readPreference: readPreference.toJSON()
};
}
const commandOptions = Object.assign({
command: true,
numberToSkip: 0,
numberToReturn: -1,
checkKeys: false,
// This value is not overridable
slaveOk: readPreference.slaveOk()
}, options);
const cmdNs = `${ns.db}.$cmd`;
const message = shouldUseOpMsg
? new commands_1.Msg(cmdNs, finalCmd, commandOptions)
: new commands_1.Query(cmdNs, finalCmd, commandOptions);
try {
write(this, message, commandOptions, callback);
}
catch (err) {
callback(err);
}
}
/** @internal */
query(ns, cmd, options, callback) {
var _a;
const isExplain = cmd.$explain != null;
const readPreference = (_a = options.readPreference) !== null && _a !== void 0 ? _a : read_preference_1.ReadPreference.primary;
const batchSize = options.batchSize || 0;
const limit = options.limit;
const numberToSkip = options.skip || 0;
let numberToReturn = 0;
if (limit &&
(limit < 0 || (limit !== 0 && limit < batchSize) || (limit > 0 && batchSize === 0))) {
numberToReturn = limit;
}
else {
numberToReturn = batchSize;
}
if (isExplain) {
// nToReturn must be 0 (match all) or negative (match N and close cursor)
// nToReturn > 0 will give explain results equivalent to limit(0)
numberToReturn = -Math.abs(limit || 0);
}
const queryOptions = {
numberToSkip,
numberToReturn,
pre32Limit: typeof limit === 'number' ? limit : undefined,
checkKeys: false,
slaveOk: readPreference.slaveOk()
};
if (options.projection) {
queryOptions.returnFieldSelector = options.projection;
}
const query = new commands_1.Query(ns.toString(), cmd, queryOptions);
if (typeof options.tailable === 'boolean') {
query.tailable = options.tailable;
}
if (typeof options.oplogReplay === 'boolean') {
query.oplogReplay = options.oplogReplay;
}
if (typeof options.timeout === 'boolean') {
query.noCursorTimeout = !options.timeout;
}
else if (typeof options.noCursorTimeout === 'boolean') {
query.noCursorTimeout = options.noCursorTimeout;
}
if (typeof options.awaitData === 'boolean') {
query.awaitData = options.awaitData;
}
if (typeof options.partial === 'boolean') {
query.partial = options.partial;
}
write(this, query, { [kFullResult]: true, ...(0, bson_1.pluckBSONSerializeOptions)(options) }, (err, result) => {
if (err || !result)
return callback(err, result);
if (isExplain && result.documents && result.documents[0]) {
return callback(undefined, result.documents[0]);
}
callback(undefined, result);
});
}
/** @internal */
getMore(ns, cursorId, options, callback) {
const fullResult = !!options[kFullResult];
const wireVersion = (0, utils_1.maxWireVersion)(this);
if (!cursorId) {
// TODO(NODE-3483): Replace this with a MongoCommandError
callback(new error_1.MongoRuntimeError('Invalid internal cursor state, no known cursor id'));
return;
}
if (wireVersion < 4) {
const getMoreOp = new commands_1.GetMore(ns.toString(), cursorId, { numberToReturn: options.batchSize });
const queryOptions = (0, shared_1.applyCommonQueryOptions)({}, Object.assign(options, { ...(0, bson_1.pluckBSONSerializeOptions)(options) }));
queryOptions[kFullResult] = true;
queryOptions.command = true;
write(this, getMoreOp, queryOptions, (err, response) => {
if (fullResult)
return callback(err, response);
if (err)
return callback(err);
callback(undefined, { cursor: { id: response.cursorId, nextBatch: response.documents } });
});
return;
}
const getMoreCmd = {
getMore: cursorId,
collection: ns.collection
};
if (typeof options.batchSize === 'number') {
getMoreCmd.batchSize = Math.abs(options.batchSize);
}
if (typeof options.maxAwaitTimeMS === 'number') {
getMoreCmd.maxTimeMS = options.maxAwaitTimeMS;
}
const commandOptions = Object.assign({
returnFieldSelector: null,
documentsReturnedIn: 'nextBatch'
}, options);
this.command(ns, getMoreCmd, commandOptions, callback);
}
/** @internal */
killCursors(ns, cursorIds, options, callback) {
if (!cursorIds || !Array.isArray(cursorIds)) {
// TODO(NODE-3483): Replace this with a MongoCommandError
throw new error_1.MongoRuntimeError(`Invalid list of cursor ids provided: ${cursorIds}`);
}
if ((0, utils_1.maxWireVersion)(this) < 4) {
try {
write(this, new commands_1.KillCursor(ns.toString(), cursorIds), { noResponse: true, ...options }, callback);
}
catch (err) {
callback(err);
}
return;
}
this.command(ns, { killCursors: ns.collection, cursors: cursorIds }, { [kFullResult]: true, ...options }, (err, response) => {
if (err || !response)
return callback(err);
if (response.cursorNotFound) {
return callback(new error_1.MongoNetworkError('cursor killed or timed out'), null);
}
if (!Array.isArray(response.documents) || response.documents.length === 0) {
return callback(
// TODO(NODE-3483)
new error_1.MongoRuntimeError(`invalid killCursors result returned for cursor id ${cursorIds[0]}`));
}
callback(undefined, response.documents[0]);
});
}
}
exports.Connection = Connection;
/** @event */
Connection.COMMAND_STARTED = 'commandStarted';
/** @event */
Connection.COMMAND_SUCCEEDED = 'commandSucceeded';
/** @event */
Connection.COMMAND_FAILED = 'commandFailed';
/** @event */
Connection.CLUSTER_TIME_RECEIVED = 'clusterTimeReceived';
/** @event */
Connection.CLOSE = 'close';
/** @event */
Connection.MESSAGE = 'message';
/** @event */
Connection.PINNED = 'pinned';
/** @event */
Connection.UNPINNED = 'unpinned';
/** @public */
exports.APM_EVENTS = [
Connection.COMMAND_STARTED,
Connection.COMMAND_SUCCEEDED,
Connection.COMMAND_FAILED
];
/** @internal */
class CryptoConnection extends Connection {
constructor(stream, options) {
super(stream, options);
this[kAutoEncrypter] = options.autoEncrypter;
}
/** @internal @override */
command(ns, cmd, options, callback) {
const autoEncrypter = this[kAutoEncrypter];
if (!autoEncrypter) {
return callback(new error_1.MongoMissingDependencyError('No AutoEncrypter available for encryption'));
}
const serverWireVersion = (0, utils_1.maxWireVersion)(this);
if (serverWireVersion === 0) {
// 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;
}
autoEncrypter.encrypt(ns.toString(), cmd, options, (err, encrypted) => {
if (err || encrypted == null) {
callback(err, null);
return;
}
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 messageHandler(conn) {
return function messageHandler(message) {
// always emit the message, in case we are streaming
conn.emit('message', message);
const operationDescription = conn[kQueue].get(message.responseTo);
if (!operationDescription) {
return;
}
const callback = operationDescription.cb;
// SERVER-45775: For exhaust responses we should be able to use the same requestId to
// track response, however the server currently synthetically produces remote requests
// making the `responseTo` change on each response
conn[kQueue].delete(message.responseTo);
if ('moreToCome' in message && message.moreToCome) {
// requeue the callback for next synthetic request
conn[kQueue].set(message.requestId, operationDescription);
}
else if (operationDescription.socketTimeoutOverride) {
conn[kStream].setTimeout(conn.socketTimeoutMS);
}
try {
// Pass in the entire description because it has BSON parsing options
message.parse(operationDescription);
}
catch (err) {
// If this error is generated by our own code, it will already have the correct class applied
// if it is not, then it is coming from a catastrophic data parse failure or the BSON library
// in either case, it should not be wrapped
callback(err);
return;
}
if (message.documents[0]) {
const document = message.documents[0];
const session = operationDescription.session;
if (session) {
(0, sessions_1.updateSessionFromResponse)(session, document);
}
if (document.$clusterTime) {
conn[kClusterTime] = document.$clusterTime;
conn.emit(Connection.CLUSTER_TIME_RECEIVED, document.$clusterTime);
}
if (operationDescription.command) {
if (document.writeConcernError) {
callback(new error_1.MongoWriteConcernError(document.writeConcernError, document));
return;
}
if (document.ok === 0 || document.$err || document.errmsg || document.code) {
callback(new error_1.MongoServerError(document));
return;
}
}
else {
// Pre 3.2 support
if (document.ok === 0 || document.$err || document.errmsg) {
callback(new error_1.MongoServerError(document));
return;
}
}
}
callback(undefined, operationDescription.fullResult ? message : message.documents[0]);
};
}
function streamIdentifier(stream) {
if (typeof stream.address === 'function') {
return `${stream.remoteAddress}:${stream.remotePort}`;
}
return (0, utils_1.uuidV4)().toString('hex');
}
function write(conn, command, options, callback) {
if (typeof options === 'function') {
callback = options;
}
options = options !== null && options !== void 0 ? options : {};
const operationDescription = {
requestId: command.requestId,
cb: callback,
session: options.session,
fullResult: !!options[kFullResult],
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,
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') {
operationDescription.socketTimeoutOverride = true;
conn[kStream].setTimeout(options.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