n8n
Version:
n8n Workflow Automation Tool
164 lines • 6.63 kB
JavaScript
"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
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return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.TaskRunnerProcess = void 0;
const config_1 = require("@n8n/config");
const a = __importStar(require("node:assert/strict"));
const node_child_process_1 = require("node:child_process");
const process = __importStar(require("node:process"));
const typedi_1 = require("typedi");
const task_runner_auth_service_1 = require("./auth/task-runner-auth.service");
const on_shutdown_1 = require("../decorators/on-shutdown");
let TaskRunnerProcess = class TaskRunnerProcess {
get isRunning() {
return this.process !== null;
}
get pid() {
return this.process?.pid;
}
get runPromise() {
return this._runPromise;
}
get useLauncher() {
return this.runnerConfig.mode === 'internal_launcher';
}
constructor(runnerConfig, authService) {
this.runnerConfig = runnerConfig;
this.authService = authService;
this.process = null;
this._runPromise = null;
this.isShuttingDown = false;
a.ok(this.runnerConfig.mode === 'internal_childprocess' ||
this.runnerConfig.mode === 'internal_launcher');
}
async start() {
a.ok(!this.process, 'Task Runner Process already running');
const grantToken = await this.authService.createGrantToken();
const n8nUri = `127.0.0.1:${this.runnerConfig.port}`;
this.process = this.useLauncher
? this.startLauncher(grantToken, n8nUri)
: this.startNode(grantToken, n8nUri);
this.process.stdout?.pipe(process.stdout);
this.process.stderr?.pipe(process.stderr);
this.monitorProcess(this.process);
}
startNode(grantToken, n8nUri) {
const startScript = require.resolve('@n8n/task-runner');
return (0, node_child_process_1.spawn)('node', [startScript], {
env: {
PATH: process.env.PATH,
N8N_RUNNERS_GRANT_TOKEN: grantToken,
N8N_RUNNERS_N8N_URI: n8nUri,
N8N_RUNNERS_MAX_PAYLOAD: this.runnerConfig.maxPayload.toString(),
NODE_FUNCTION_ALLOW_BUILTIN: process.env.NODE_FUNCTION_ALLOW_BUILTIN,
NODE_FUNCTION_ALLOW_EXTERNAL: process.env.NODE_FUNCTION_ALLOW_EXTERNAL,
},
});
}
startLauncher(grantToken, n8nUri) {
return (0, node_child_process_1.spawn)(this.runnerConfig.launcherPath, ['launch', this.runnerConfig.launcherRunner], {
env: {
PATH: process.env.PATH,
N8N_RUNNERS_GRANT_TOKEN: grantToken,
N8N_RUNNERS_N8N_URI: n8nUri,
N8N_RUNNERS_MAX_PAYLOAD: this.runnerConfig.maxPayload.toString(),
NODE_FUNCTION_ALLOW_BUILTIN: process.env.NODE_FUNCTION_ALLOW_BUILTIN,
NODE_FUNCTION_ALLOW_EXTERNAL: process.env.NODE_FUNCTION_ALLOW_EXTERNAL,
RUST_LOG: process.env.RUST_LOG,
},
});
}
async stop() {
if (!this.process) {
return;
}
this.isShuttingDown = true;
if (this.useLauncher) {
await this.killLauncher();
}
else {
this.killNode();
}
await this._runPromise;
this.isShuttingDown = false;
}
killNode() {
if (!this.process) {
return;
}
this.process.kill();
}
async killLauncher() {
if (!this.process?.pid) {
return;
}
const killProcess = (0, node_child_process_1.spawn)(this.runnerConfig.launcherPath, [
'kill',
this.runnerConfig.launcherRunner,
this.process.pid.toString(),
]);
await new Promise((resolve) => {
killProcess.on('exit', () => {
resolve();
});
});
}
monitorProcess(taskRunnerProcess) {
this._runPromise = new Promise((resolve) => {
taskRunnerProcess.on('exit', (code) => {
this.onProcessExit(code, resolve);
});
});
}
onProcessExit(_code, resolveFn) {
this.process = null;
resolveFn();
if (!this.isShuttingDown) {
setImmediate(async () => await this.start());
}
}
};
exports.TaskRunnerProcess = TaskRunnerProcess;
__decorate([
(0, on_shutdown_1.OnShutdown)(),
__metadata("design:type", Function),
__metadata("design:paramtypes", []),
__metadata("design:returntype", Promise)
], TaskRunnerProcess.prototype, "stop", null);
exports.TaskRunnerProcess = TaskRunnerProcess = __decorate([
(0, typedi_1.Service)(),
__metadata("design:paramtypes", [config_1.TaskRunnersConfig,
task_runner_auth_service_1.TaskRunnerAuthService])
], TaskRunnerProcess);
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