"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.executeOperation = void 0;
const error_1 = require("../error");
const read_preference_1 = require("../read_preference");
const server_selection_1 = require("../sdam/server_selection");
const utils_1 = require("../utils");
const operation_1 = require("./operation");
const MMAPv1_RETRY_WRITES_ERROR_CODE = error_1.MONGODB_ERROR_CODES.IllegalOperation;
const MMAPv1_RETRY_WRITES_ERROR_MESSAGE = 'This MongoDB deployment does not support retryable writes. Please add retryWrites=false to your connection string.';
function executeOperation(client, operation, callback) {
if (!(operation instanceof operation_1.AbstractOperation)) {
// TODO(NODE-3483): Extend MongoRuntimeError
throw new error_1.MongoRuntimeError('This method requires a valid operation instance');
}
return (0, utils_1.maybePromise)(callback, callback => {
const topology = client.topology;
if (topology == null) {
if (client.s.hasBeenClosed) {
return callback(new error_1.MongoNotConnectedError('Client must be connected before running operations'));
}
client.s.options[Symbol.for('@@mdb.skipPingOnConnect')] = true;
return client.connect(error => {
delete client.s.options[Symbol.for('@@mdb.skipPingOnConnect')];
if (error) {
return callback(error);
}
return executeOperation(client, operation, callback);
});
}
if (topology.shouldCheckForSessionSupport()) {
return topology.selectServer(read_preference_1.ReadPreference.primaryPreferred, {}, err => {
if (err)
return callback(err);
executeOperation(client, operation, callback);
});
}
// The driver sessions spec mandates that we implicitly create sessions for operations
// that are not explicitly provided with a session.
let session = operation.session;
let owner;
if (topology.hasSessionSupport()) {
if (session == null) {
owner = Symbol();
session = client.startSession({ owner, explicit: false });
}
else if (session.hasEnded) {
return callback(new error_1.MongoExpiredSessionError('Use of expired sessions is not permitted'));
}
else if (session.snapshotEnabled && !topology.capabilities.supportsSnapshotReads) {
return callback(new error_1.MongoCompatibilityError('Snapshot reads require MongoDB 5.0 or later'));
}
}
else {
// no session support
if (session && session.explicit) {
// If the user passed an explicit session and we are still, after server selection,
// trying to run against a topology that doesn't support sessions we error out.
return callback(new error_1.MongoCompatibilityError('Current topology does not support sessions'));
}
else if (session && !session.explicit) {
// We do not have to worry about ending the session because the server session has not been acquired yet
delete operation.options.session;
operation.clearSession();
session = undefined;
}
}
try {
executeWithServerSelection(topology, session, operation, (error, result) => {
if ((session === null || session === void 0 ? void 0 : session.owner) != null && session.owner === owner) {
return session.endSession(endSessionError => callback(endSessionError !== null && endSessionError !== void 0 ? endSessionError : error, result));
}
callback(error, result);
});
}
catch (error) {
if ((session === null || session === void 0 ? void 0 : session.owner) != null && session.owner === owner) {
session.endSession().catch(() => null);
}
throw error;
}
});
}
exports.executeOperation = executeOperation;
function executeWithServerSelection(topology, session, operation, callback) {
var _a, _b;
const readPreference = (_a = operation.readPreference) !== null && _a !== void 0 ? _a : read_preference_1.ReadPreference.primary;
const inTransaction = !!(session === null || session === void 0 ? void 0 : session.inTransaction());
if (inTransaction && !readPreference.equals(read_preference_1.ReadPreference.primary)) {
return callback(new error_1.MongoTransactionError(`Read preference in a transaction must be primary, not: ${readPreference.mode}`));
}
if ((session === null || session === void 0 ? void 0 : session.isPinned) && session.transaction.isCommitted && !operation.bypassPinningCheck) {
session.unpin();
}
let selector;
if (operation.hasAspect(operation_1.Aspect.MUST_SELECT_SAME_SERVER)) {
// GetMore and KillCursor operations must always select the same server, but run through
// server selection to potentially force monitor checks if the server is
// in an unknown state.
selector = (0, server_selection_1.sameServerSelector)((_b = operation.server) === null || _b === void 0 ? void 0 : _b.description);
}
else if (operation.trySecondaryWrite) {
// If operation should try to write to secondary use the custom server selector
// otherwise provide the read preference.
selector = (0, server_selection_1.secondaryWritableServerSelector)(topology.commonWireVersion, readPreference);
}
else {
selector = readPreference;
}
const serverSelectionOptions = { session };
function retryOperation(originalError) {
const isWriteOperation = operation.hasAspect(operation_1.Aspect.WRITE_OPERATION);
const isReadOperation = operation.hasAspect(operation_1.Aspect.READ_OPERATION);
if (isWriteOperation && originalError.code === MMAPv1_RETRY_WRITES_ERROR_CODE) {
return callback(new error_1.MongoServerError({
message: MMAPv1_RETRY_WRITES_ERROR_MESSAGE,
errmsg: MMAPv1_RETRY_WRITES_ERROR_MESSAGE,
originalError
}));
}
if (isWriteOperation && !(0, error_1.isRetryableWriteError)(originalError)) {
return callback(originalError);
}
if (isReadOperation && !(0, error_1.isRetryableReadError)(originalError)) {
return callback(originalError);
}
if (originalError instanceof error_1.MongoNetworkError &&
(session === null || session === void 0 ? void 0 : session.isPinned) &&
!session.inTransaction() &&
operation.hasAspect(operation_1.Aspect.CURSOR_CREATING)) {
// If we have a cursor and the initial command fails with a network error,
// we can retry it on another connection. So we need to check it back in, clear the
// pool for the service id, and retry again.
session.unpin({ force: true, forceClear: true });
}
// select a new server, and attempt to retry the operation
topology.selectServer(selector, serverSelectionOptions, (error, server) => {
if (!error && isWriteOperation && !(0, utils_1.supportsRetryableWrites)(server)) {
return callback(new error_1.MongoUnexpectedServerResponseError('Selected server does not support retryable writes'));
}
if (error || !server) {
return callback(error !== null && error !== void 0 ? error : new error_1.MongoUnexpectedServerResponseError('Server selection failed without error'));
}
operation.execute(server, session, callback);
});
}
if (readPreference &&
!readPreference.equals(read_preference_1.ReadPreference.primary) &&
(session === null || session === void 0 ? void 0 : session.inTransaction())) {
callback(new error_1.MongoTransactionError(`Read preference in a transaction must be primary, not: ${readPreference.mode}`));
return;
}
// select a server, and execute the operation against it
topology.selectServer(selector, serverSelectionOptions, (error, server) => {
if (error || !server) {
return callback(error);
}
if (session && operation.hasAspect(operation_1.Aspect.RETRYABLE)) {
const willRetryRead = topology.s.options.retryReads && !inTransaction && operation.canRetryRead;
const willRetryWrite = topology.s.options.retryWrites &&
!inTransaction &&
(0, utils_1.supportsRetryableWrites)(server) &&
operation.canRetryWrite;
const hasReadAspect = operation.hasAspect(operation_1.Aspect.READ_OPERATION);
const hasWriteAspect = operation.hasAspect(operation_1.Aspect.WRITE_OPERATION);
if ((hasReadAspect && willRetryRead) || (hasWriteAspect && willRetryWrite)) {
if (hasWriteAspect && willRetryWrite) {
operation.options.willRetryWrite = true;
session.incrementTransactionNumber();
}
return operation.execute(server, session, (error, result) => {
if (error instanceof error_1.MongoError) {
return retryOperation(error);
}
else if (error) {
return callback(error);
}
callback(undefined, result);
});
}
}
return operation.execute(server, session, callback);
});
}
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