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81 lines
3.7 KiB
JavaScript
81 lines
3.7 KiB
JavaScript
11 months ago
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.MongocryptdManager = void 0;
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const error_1 = require("../error");
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/**
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* @internal
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* An internal class that handles spawning a mongocryptd.
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*/
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class MongocryptdManager {
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constructor(extraOptions = {}) {
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this.uri =
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typeof extraOptions.mongocryptdURI === 'string' && extraOptions.mongocryptdURI.length > 0
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? extraOptions.mongocryptdURI
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: MongocryptdManager.DEFAULT_MONGOCRYPTD_URI;
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this.bypassSpawn = !!extraOptions.mongocryptdBypassSpawn;
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this.spawnPath = extraOptions.mongocryptdSpawnPath || '';
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this.spawnArgs = [];
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if (Array.isArray(extraOptions.mongocryptdSpawnArgs)) {
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this.spawnArgs = this.spawnArgs.concat(extraOptions.mongocryptdSpawnArgs);
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}
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if (this.spawnArgs
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.filter(arg => typeof arg === 'string')
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.every(arg => arg.indexOf('--idleShutdownTimeoutSecs') < 0)) {
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this.spawnArgs.push('--idleShutdownTimeoutSecs', '60');
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}
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}
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/**
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* Will check to see if a mongocryptd is up. If it is not up, it will attempt
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* to spawn a mongocryptd in a detached process, and then wait for it to be up.
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*/
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async spawn() {
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const cmdName = this.spawnPath || 'mongocryptd';
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// eslint-disable-next-line @typescript-eslint/no-var-requires
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const { spawn } = require('child_process');
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// Spawned with stdio: ignore and detached: true
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// to ensure child can outlive parent.
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this._child = spawn(cmdName, this.spawnArgs, {
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stdio: 'ignore',
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detached: true
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});
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this._child.on('error', () => {
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// From the FLE spec:
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// "The stdout and stderr of the spawned process MUST not be exposed in the driver
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// (e.g. redirect to /dev/null). Users can pass the argument --logpath to
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// extraOptions.mongocryptdSpawnArgs if they need to inspect mongocryptd logs.
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// If spawning is necessary, the driver MUST spawn mongocryptd whenever server
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// selection on the MongoClient to mongocryptd fails. If the MongoClient fails to
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// connect after spawning, the server selection error is propagated to the user."
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// The AutoEncrypter and MongoCryptdManager should work together to spawn
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// mongocryptd whenever necessary. Additionally, the `mongocryptd` intentionally
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// shuts down after 60s and gets respawned when necessary. We rely on server
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// selection timeouts when connecting to the `mongocryptd` to inform users that something
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// has been configured incorrectly. For those reasons, we suppress stderr from
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// the `mongocryptd` process and immediately unref the process.
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});
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// unref child to remove handle from event loop
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this._child.unref();
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}
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/**
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* @returns the result of `fn` or rejects with an error.
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*/
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async withRespawn(fn) {
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try {
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const result = await fn();
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return result;
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}
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catch (err) {
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// If we are not bypassing spawning, then we should retry once on a MongoTimeoutError (server selection error)
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const shouldSpawn = err instanceof error_1.MongoNetworkTimeoutError && !this.bypassSpawn;
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if (!shouldSpawn) {
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throw err;
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}
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}
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await this.spawn();
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const result = await fn();
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return result;
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}
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}
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MongocryptdManager.DEFAULT_MONGOCRYPTD_URI = 'mongodb://localhost:27020';
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exports.MongocryptdManager = MongocryptdManager;
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//# sourceMappingURL=mongocryptd_manager.js.map
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