mirror of
https://github.com/n8n-io/n8n.git
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1255 lines
40 KiB
TypeScript
1255 lines
40 KiB
TypeScript
import * as express from 'express';
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import {
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dirname as pathDirname,
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join as pathJoin,
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} from 'path';
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import {
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getConnectionManager,
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} from 'typeorm';
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import * as bodyParser from 'body-parser';
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require('body-parser-xml')(bodyParser);
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import * as history from 'connect-history-api-fallback';
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import * as requestPromise from 'request-promise-native';
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import {
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ActiveExecutions,
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ActiveWorkflowRunner,
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CredentialTypes,
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Db,
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IActivationError,
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ICustomRequest,
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ICredentialsDb,
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ICredentialsDecryptedDb,
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ICredentialsDecryptedResponse,
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ICredentialsResponse,
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IExecutionDeleteFilter,
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IExecutionFlatted,
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IExecutionFlattedDb,
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IExecutionFlattedResponse,
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IExecutionPushResponse,
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IExecutionsListResponse,
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IExecutionsStopData,
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IExecutionsSummary,
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IN8nUISettings,
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IPackageVersions,
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IWorkflowBase,
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IWorkflowShortResponse,
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IWorkflowResponse,
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IWorkflowExecutionDataProcess,
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NodeTypes,
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Push,
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ResponseHelper,
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TestWebhooks,
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WorkflowCredentials,
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WebhookHelpers,
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WorkflowExecuteAdditionalData,
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WorkflowHelpers,
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WorkflowRunner,
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GenericHelpers,
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} from './';
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import {
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Credentials,
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LoadNodeParameterOptions,
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UserSettings,
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} from 'n8n-core';
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import {
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ICredentialType,
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IDataObject,
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INodeCredentials,
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INodeTypeDescription,
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INodePropertyOptions,
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IRunData,
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Workflow,
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} from 'n8n-workflow';
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import {
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FindManyOptions,
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FindOneOptions,
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LessThan,
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LessThanOrEqual,
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Not,
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} from 'typeorm';
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import * as basicAuth from 'basic-auth';
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import * as compression from 'compression';
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import * as config from '../config';
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import * as jwt from 'jsonwebtoken';
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import * as jwks from 'jwks-rsa';
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// @ts-ignore
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import * as timezones from 'google-timezones-json';
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import * as parseUrl from 'parseurl';
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class App {
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app: express.Application;
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activeWorkflowRunner: ActiveWorkflowRunner.ActiveWorkflowRunner;
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testWebhooks: TestWebhooks.TestWebhooks;
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endpointWebhook: string;
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endpointWebhookTest: string;
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saveDataErrorExecution: string;
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saveDataSuccessExecution: string;
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saveManualExecutions: boolean;
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timezone: string;
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activeExecutionsInstance: ActiveExecutions.ActiveExecutions;
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push: Push.Push;
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versions: IPackageVersions | undefined;
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constructor() {
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this.app = express();
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this.endpointWebhook = config.get('endpoints.webhook') as string;
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this.endpointWebhookTest = config.get('endpoints.webhookTest') as string;
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this.saveDataErrorExecution = config.get('executions.saveDataOnError') as string;
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this.saveDataSuccessExecution = config.get('executions.saveDataOnSuccess') as string;
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this.saveManualExecutions = config.get('executions.saveDataManualExecutions') as boolean;
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this.timezone = config.get('generic.timezone') as string;
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this.activeWorkflowRunner = ActiveWorkflowRunner.getInstance();
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this.testWebhooks = TestWebhooks.getInstance();
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this.push = Push.getInstance();
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this.activeExecutionsInstance = ActiveExecutions.getInstance();
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}
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/**
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* Returns the current epoch time
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*
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* @returns {number}
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* @memberof App
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*/
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getCurrentDate(): Date {
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return new Date();
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}
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async config(): Promise<void> {
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this.versions = await GenericHelpers.getVersions();
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const authIgnoreRegex = new RegExp(`^\/(rest|healthz|${this.endpointWebhook}|${this.endpointWebhookTest})\/?.*$`);
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// Check for basic auth credentials if activated
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const basicAuthActive = config.get('security.basicAuth.active') as boolean;
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if (basicAuthActive === true) {
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const basicAuthUser = await GenericHelpers.getConfigValue('security.basicAuth.user') as string;
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if (basicAuthUser === '') {
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throw new Error('Basic auth is activated but no user got defined. Please set one!');
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}
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const basicAuthPassword = await GenericHelpers.getConfigValue('security.basicAuth.password') as string;
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if (basicAuthPassword === '') {
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throw new Error('Basic auth is activated but no password got defined. Please set one!');
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}
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this.app.use((req: express.Request, res: express.Response, next: express.NextFunction) => {
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if (req.url.match(authIgnoreRegex)) {
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return next();
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}
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const realm = 'n8n - Editor UI';
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const basicAuthData = basicAuth(req);
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if (basicAuthData === undefined) {
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// Authorization data is missing
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return ResponseHelper.basicAuthAuthorizationError(res, realm, 'Authorization is required!');
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}
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if (basicAuthData.name !== basicAuthUser || basicAuthData.pass !== basicAuthPassword) {
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// Provided authentication data is wrong
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return ResponseHelper.basicAuthAuthorizationError(res, realm, 'Authorization data is wrong!');
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}
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next();
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});
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}
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// Check for and validate JWT if configured
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const jwtAuthActive = config.get('security.jwtAuth.active') as boolean;
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if (jwtAuthActive === true) {
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const jwtAuthHeader = await GenericHelpers.getConfigValue('security.jwtAuth.jwtHeader') as string;
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if (jwtAuthHeader === '') {
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throw new Error('JWT auth is activated but no request header was defined. Please set one!');
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}
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const jwksUri = await GenericHelpers.getConfigValue('security.jwtAuth.jwksUri') as string;
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if (jwksUri === '') {
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throw new Error('JWT auth is activated but no JWK Set URI was defined. Please set one!');
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}
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this.app.use((req: express.Request, res: express.Response, next: express.NextFunction) => {
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if (req.url.match(authIgnoreRegex)) {
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return next();
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}
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const token = req.header(jwtAuthHeader) as string;
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if (token === '') {
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return ResponseHelper.jwtAuthAuthorizationError(res, "Missing token");
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}
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const jwkClient = jwks({ cache: true, jwksUri });
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function getKey(header: any, callback: Function) { // tslint:disable-line:no-any
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jwkClient.getSigningKey(header.kid, (err: Error, key: any) => { // tslint:disable-line:no-any
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if (err) throw ResponseHelper.jwtAuthAuthorizationError(res, err.message);
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const signingKey = key.publicKey || key.rsaPublicKey;
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callback(null, signingKey);
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});
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}
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jwt.verify(token, getKey, {}, (err: Error, decoded: string) => {
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if (err) return ResponseHelper.jwtAuthAuthorizationError(res, "Invalid token");
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next();
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});
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});
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}
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// Get push connections
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this.app.use((req: express.Request, res: express.Response, next: express.NextFunction) => {
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if (req.url.indexOf('/rest/push') === 0) {
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// TODO: Later also has to add some kind of authentication token
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if (req.query.sessionId === undefined) {
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next(new Error('The query parameter "sessionId" is missing!'));
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return;
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}
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this.push.add(req.query.sessionId, req, res);
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return;
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}
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next();
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});
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// Compress the response data
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this.app.use(compression());
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// Make sure that each request has the "parsedUrl" parameter
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this.app.use((req: express.Request, res: express.Response, next: express.NextFunction) => {
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(req as ICustomRequest).parsedUrl = parseUrl(req);
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next();
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});
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// Support application/json type post data
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this.app.use(bodyParser.json({
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limit: '16mb', verify: (req, res, buf) => {
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// @ts-ignore
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req.rawBody = buf;
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}
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}));
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// Support application/xml type post data
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// @ts-ignore
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this.app.use(bodyParser.xml({ limit: '16mb', xmlParseOptions: {
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normalize: true, // Trim whitespace inside text nodes
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normalizeTags: true, // Transform tags to lowercase
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explicitArray: false, // Only put properties in array if length > 1
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} }));
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this.app.use(bodyParser.text({
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limit: '16mb', verify: (req, res, buf) => {
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// @ts-ignore
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req.rawBody = buf;
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}
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}));
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// Make sure that Vue history mode works properly
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this.app.use(history({
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rewrites: [
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{
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from: new RegExp(`^\/(rest|healthz|css|js|${this.endpointWebhook}|${this.endpointWebhookTest})\/?.*$`),
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to: (context) => {
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return context.parsedUrl!.pathname!.toString();
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}
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}
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]
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}));
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//support application/x-www-form-urlencoded post data
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this.app.use(bodyParser.urlencoded({ extended: false }));
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if (process.env['NODE_ENV'] !== 'production') {
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this.app.use((req: express.Request, res: express.Response, next: express.NextFunction) => {
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// Allow access also from frontend when developing
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res.header('Access-Control-Allow-Origin', 'http://localhost:8080');
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res.header('Access-Control-Allow-Methods', 'GET, POST, OPTIONS, PUT, PATCH, DELETE');
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res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept, sessionid');
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next();
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});
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}
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this.app.use((req: express.Request, res: express.Response, next: express.NextFunction) => {
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if (Db.collections.Workflow === null) {
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const error = new ResponseHelper.ResponseError('Database is not ready!', undefined, 503);
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return ResponseHelper.sendErrorResponse(res, error);
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}
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next();
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});
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// ----------------------------------------
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// Healthcheck
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// ----------------------------------------
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// Does very basic health check
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this.app.get('/healthz', async (req: express.Request, res: express.Response) => {
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const connectionManager = getConnectionManager();
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if (connectionManager.connections.length === 0) {
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const error = new ResponseHelper.ResponseError('No Database connection found!', undefined, 503);
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return ResponseHelper.sendErrorResponse(res, error);
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}
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if (connectionManager.connections[0].isConnected === false) {
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// Connection is not active
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const error = new ResponseHelper.ResponseError('Database connection not active!', undefined, 503);
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return ResponseHelper.sendErrorResponse(res, error);
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}
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// Everything fine
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const responseData = {
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status: 'ok',
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};
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ResponseHelper.sendSuccessResponse(res, responseData, true, 200);
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});
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// ----------------------------------------
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// Workflow
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// ----------------------------------------
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// Creates a new workflow
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this.app.post('/rest/workflows', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<IWorkflowResponse> => {
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const newWorkflowData = req.body;
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newWorkflowData.name = newWorkflowData.name.trim();
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newWorkflowData.createdAt = this.getCurrentDate();
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newWorkflowData.updatedAt = this.getCurrentDate();
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newWorkflowData.id = undefined;
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// Save the workflow in DB
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const result = await Db.collections.Workflow!.save(newWorkflowData);
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// Convert to response format in which the id is a string
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(result as IWorkflowBase as IWorkflowResponse).id = result.id.toString();
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return result as IWorkflowBase as IWorkflowResponse;
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}));
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// Reads and returns workflow data from an URL
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this.app.get('/rest/workflows/from-url', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<IWorkflowResponse> => {
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if (req.query.url === undefined) {
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throw new ResponseHelper.ResponseError(`The parameter "url" is missing!`, undefined, 400);
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}
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if (!req.query.url.match(/^http[s]?:\/\/.*\.json$/i)) {
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throw new ResponseHelper.ResponseError(`The parameter "url" is not valid! It does not seem to be a URL pointing to a n8n workflow JSON file.`, undefined, 400);
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}
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const data = await requestPromise.get(req.query.url);
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let workflowData: IWorkflowResponse | undefined;
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try {
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workflowData = JSON.parse(data);
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} catch (error) {
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throw new ResponseHelper.ResponseError(`The URL does not point to valid JSON file!`, undefined, 400);
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}
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// Do a very basic check if it is really a n8n-workflow-json
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if (workflowData === undefined || workflowData.nodes === undefined || !Array.isArray(workflowData.nodes) ||
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workflowData.connections === undefined || typeof workflowData.connections !== 'object' ||
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Array.isArray(workflowData.connections)) {
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throw new ResponseHelper.ResponseError(`The data in the file does not seem to be a n8n workflow JSON file!`, undefined, 400);
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}
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return workflowData;
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}));
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// Returns workflows
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this.app.get('/rest/workflows', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<IWorkflowShortResponse[]> => {
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const findQuery = {} as FindManyOptions;
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if (req.query.filter) {
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findQuery.where = JSON.parse(req.query.filter);
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}
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// Return only the fields we need
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findQuery.select = ['id', 'name', 'active', 'createdAt', 'updatedAt'];
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const results = await Db.collections.Workflow!.find(findQuery);
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for (const entry of results) {
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(entry as unknown as IWorkflowShortResponse).id = entry.id.toString();
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}
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return results as unknown as IWorkflowShortResponse[];
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}));
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// Returns a specific workflow
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this.app.get('/rest/workflows/:id', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<IWorkflowResponse | undefined> => {
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const result = await Db.collections.Workflow!.findOne(req.params.id);
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if (result === undefined) {
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return undefined;
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}
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// Convert to response format in which the id is a string
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(result as IWorkflowBase as IWorkflowResponse).id = result.id.toString();
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return result as IWorkflowBase as IWorkflowResponse;
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}));
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// Updates an existing workflow
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this.app.patch('/rest/workflows/:id', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<IWorkflowResponse> => {
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const newWorkflowData = req.body;
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const id = req.params.id;
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if (this.activeWorkflowRunner.isActive(id)) {
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// When workflow gets saved always remove it as the triggers could have been
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// changed and so the changes would not take effect
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await this.activeWorkflowRunner.remove(id);
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}
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if (newWorkflowData.settings) {
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if (newWorkflowData.settings.timezone === 'DEFAULT') {
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// Do not save the default timezone
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delete newWorkflowData.settings.timezone;
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}
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if (newWorkflowData.settings.saveDataErrorExecution === 'DEFAULT') {
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// Do not save when default got set
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delete newWorkflowData.settings.saveDataErrorExecution;
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}
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if (newWorkflowData.settings.saveDataSuccessExecution === 'DEFAULT') {
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// Do not save when default got set
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delete newWorkflowData.settings.saveDataSuccessExecution;
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}
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if (newWorkflowData.settings.saveManualExecutions === 'DEFAULT') {
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// Do not save when default got set
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delete newWorkflowData.settings.saveManualExecutions;
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}
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}
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newWorkflowData.updatedAt = this.getCurrentDate();
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await Db.collections.Workflow!.update(id, newWorkflowData);
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// We sadly get nothing back from "update". Neither if it updated a record
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// nor the new value. So query now the hopefully updated entry.
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const responseData = await Db.collections.Workflow!.findOne(id);
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if (responseData === undefined) {
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throw new ResponseHelper.ResponseError(`Workflow with id "${id}" could not be found to be updated.`, undefined, 400);
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}
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if (responseData.active === true) {
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// When the workflow is supposed to be active add it again
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try {
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await this.activeWorkflowRunner.add(id);
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} catch (error) {
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// If workflow could not be activated set it again to inactive
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newWorkflowData.active = false;
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await Db.collections.Workflow!.update(id, newWorkflowData);
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// Also set it in the returned data
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responseData.active = false;
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// Now return the original error for UI to display
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throw error;
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}
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}
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// Convert to response format in which the id is a string
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(responseData as IWorkflowBase as IWorkflowResponse).id = responseData.id.toString();
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return responseData as IWorkflowBase as IWorkflowResponse;
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}));
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// Deletes a specific workflow
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this.app.delete('/rest/workflows/:id', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<boolean> => {
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const id = req.params.id;
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if (this.activeWorkflowRunner.isActive(id)) {
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// Before deleting a workflow deactivate it
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await this.activeWorkflowRunner.remove(id);
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}
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await Db.collections.Workflow!.delete(id);
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return true;
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}));
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this.app.post('/rest/workflows/run', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<IExecutionPushResponse> => {
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const workflowData = req.body.workflowData;
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const runData: IRunData | undefined = req.body.runData;
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const startNodes: string[] | undefined = req.body.startNodes;
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const destinationNode: string | undefined = req.body.destinationNode;
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const executionMode = 'manual';
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const sessionId = GenericHelpers.getSessionId(req);
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// Check if workflow is saved as webhooks can only be tested with saved workflows.
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// If that is the case check if any webhooks calls are present we have to wait for and
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// if that is the case wait till we receive it.
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if (WorkflowHelpers.isWorkflowIdValid(workflowData.id) === true && (runData === undefined || startNodes === undefined || startNodes.length === 0 || destinationNode === undefined)) {
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// Webhooks can only be tested with saved workflows
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const credentials = await WorkflowCredentials(workflowData.nodes);
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const additionalData = await WorkflowExecuteAdditionalData.getBase(credentials);
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const nodeTypes = NodeTypes();
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const workflowInstance = new Workflow(workflowData.id, workflowData.nodes, workflowData.connections, false, nodeTypes, undefined, workflowData.settings);
|
|
const needsWebhook = await this.testWebhooks.needsWebhookData(workflowData, workflowInstance, additionalData, executionMode, sessionId, destinationNode);
|
|
if (needsWebhook === true) {
|
|
return {
|
|
waitingForWebhook: true,
|
|
};
|
|
}
|
|
}
|
|
|
|
// For manual testing always set to not active
|
|
workflowData.active = false;
|
|
|
|
const credentials = await WorkflowCredentials(workflowData.nodes);
|
|
|
|
// Start the workflow
|
|
const data: IWorkflowExecutionDataProcess = {
|
|
credentials,
|
|
destinationNode,
|
|
executionMode,
|
|
runData,
|
|
sessionId,
|
|
startNodes,
|
|
workflowData,
|
|
};
|
|
const workflowRunner = new WorkflowRunner();
|
|
const executionId = await workflowRunner.run(data);
|
|
|
|
return {
|
|
executionId,
|
|
};
|
|
}));
|
|
|
|
|
|
// Returns parameter values which normally get loaded from an external API or
|
|
// get generated dynamically
|
|
this.app.get('/rest/node-parameter-options', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<INodePropertyOptions[]> => {
|
|
const nodeType = req.query.nodeType;
|
|
let credentials: INodeCredentials | undefined = undefined;
|
|
const currentNodeParameters = req.query.currentNodeParameters;
|
|
if (req.query.credentials !== undefined) {
|
|
credentials = JSON.parse(req.query.credentials);
|
|
}
|
|
const methodName = req.query.methodName;
|
|
|
|
const nodeTypes = NodeTypes();
|
|
|
|
const loadDataInstance = new LoadNodeParameterOptions(nodeType, nodeTypes, credentials);
|
|
|
|
const workflowData = loadDataInstance.getWorkflowData() as IWorkflowBase;
|
|
const workflowCredentials = await WorkflowCredentials(workflowData.nodes);
|
|
const additionalData = await WorkflowExecuteAdditionalData.getBase(workflowCredentials, currentNodeParameters);
|
|
|
|
return loadDataInstance.getOptions(methodName, additionalData);
|
|
}));
|
|
|
|
|
|
// Returns all the node-types
|
|
this.app.get('/rest/node-types', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<INodeTypeDescription[]> => {
|
|
|
|
const returnData: INodeTypeDescription[] = [];
|
|
|
|
const nodeTypes = NodeTypes();
|
|
|
|
const allNodes = nodeTypes.getAll();
|
|
|
|
allNodes.forEach((nodeData) => {
|
|
returnData.push(nodeData.description);
|
|
});
|
|
|
|
return returnData;
|
|
}));
|
|
|
|
|
|
|
|
// ----------------------------------------
|
|
// Node-Types
|
|
// ----------------------------------------
|
|
|
|
|
|
// Returns the node icon
|
|
this.app.get('/rest/node-icon/:nodeType', async (req: express.Request, res: express.Response): Promise<void> => {
|
|
const nodeTypeName = req.params.nodeType;
|
|
|
|
const nodeTypes = NodeTypes();
|
|
const nodeType = nodeTypes.getByName(nodeTypeName);
|
|
|
|
if (nodeType === undefined) {
|
|
res.status(404).send('The nodeType is not known.');
|
|
return;
|
|
}
|
|
|
|
if (nodeType.description.icon === undefined) {
|
|
res.status(404).send('No icon found for node.');
|
|
return;
|
|
}
|
|
|
|
if (!nodeType.description.icon.startsWith('file:')) {
|
|
res.status(404).send('Node does not have a file icon.');
|
|
return;
|
|
}
|
|
|
|
const filepath = nodeType.description.icon.substr(5);
|
|
|
|
res.sendFile(filepath);
|
|
});
|
|
|
|
|
|
|
|
// ----------------------------------------
|
|
// Active Workflows
|
|
// ----------------------------------------
|
|
|
|
|
|
// Returns the active workflow ids
|
|
this.app.get('/rest/active', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<string[]> => {
|
|
return this.activeWorkflowRunner.getActiveWorkflows();
|
|
}));
|
|
|
|
|
|
// Returns if the workflow with the given id had any activation errors
|
|
this.app.get('/rest/active/error/:id', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<IActivationError | undefined> => {
|
|
const id = req.params.id;
|
|
return this.activeWorkflowRunner.getActivationError(id);
|
|
}));
|
|
|
|
|
|
|
|
// ----------------------------------------
|
|
// Credentials
|
|
// ----------------------------------------
|
|
|
|
|
|
// Deletes a specific credential
|
|
this.app.delete('/rest/credentials/:id', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<boolean> => {
|
|
const id = req.params.id;
|
|
|
|
await Db.collections.Credentials!.delete({ id });
|
|
|
|
return true;
|
|
}));
|
|
|
|
// Creates new credentials
|
|
this.app.post('/rest/credentials', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<ICredentialsResponse> => {
|
|
const incomingData = req.body;
|
|
|
|
// Add the added date for node access permissions
|
|
for (const nodeAccess of incomingData.nodesAccess) {
|
|
nodeAccess.date = this.getCurrentDate();
|
|
}
|
|
|
|
const encryptionKey = await UserSettings.getEncryptionKey();
|
|
if (encryptionKey === undefined) {
|
|
throw new Error('No encryption key got found to encrypt the credentials!');
|
|
}
|
|
|
|
if (incomingData.name === '') {
|
|
throw new Error('Credentials have to have a name set!');
|
|
}
|
|
|
|
// Check if credentials with the same name and type exist already
|
|
const findQuery = {
|
|
where: {
|
|
name: incomingData.name,
|
|
type: incomingData.type,
|
|
},
|
|
} as FindOneOptions;
|
|
|
|
const checkResult = await Db.collections.Credentials!.findOne(findQuery);
|
|
if (checkResult !== undefined) {
|
|
throw new ResponseHelper.ResponseError(`Credentials with the same type and name exist already.`, undefined, 400);
|
|
}
|
|
|
|
// Encrypt the data
|
|
const credentials = new Credentials(incomingData.name, incomingData.type, incomingData.nodesAccess);
|
|
credentials.setData(incomingData.data, encryptionKey);
|
|
const newCredentialsData = credentials.getDataToSave() as ICredentialsDb;
|
|
|
|
// Add special database related data
|
|
newCredentialsData.createdAt = this.getCurrentDate();
|
|
newCredentialsData.updatedAt = this.getCurrentDate();
|
|
|
|
// TODO: also add user automatically depending on who is logged in, if anybody is logged in
|
|
|
|
// Save the credentials in DB
|
|
const result = await Db.collections.Credentials!.save(newCredentialsData);
|
|
|
|
// Convert to response format in which the id is a string
|
|
(result as unknown as ICredentialsResponse).id = result.id.toString();
|
|
return result as unknown as ICredentialsResponse;
|
|
}));
|
|
|
|
|
|
// Updates existing credentials
|
|
this.app.patch('/rest/credentials/:id', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<ICredentialsResponse> => {
|
|
const incomingData = req.body;
|
|
|
|
const id = req.params.id;
|
|
|
|
if (incomingData.name === '') {
|
|
throw new Error('Credentials have to have a name set!');
|
|
}
|
|
|
|
// Add the date for newly added node access permissions
|
|
for (const nodeAccess of incomingData.nodesAccess) {
|
|
if (!nodeAccess.date) {
|
|
nodeAccess.date = this.getCurrentDate();
|
|
}
|
|
}
|
|
|
|
// Check if credentials with the same name and type exist already
|
|
const findQuery = {
|
|
where: {
|
|
id: Not(id),
|
|
name: incomingData.name,
|
|
type: incomingData.type,
|
|
},
|
|
} as FindOneOptions;
|
|
|
|
const checkResult = await Db.collections.Credentials!.findOne(findQuery);
|
|
if (checkResult !== undefined) {
|
|
throw new ResponseHelper.ResponseError(`Credentials with the same type and name exist already.`, undefined, 400);
|
|
}
|
|
|
|
const encryptionKey = await UserSettings.getEncryptionKey();
|
|
if (encryptionKey === undefined) {
|
|
throw new Error('No encryption key got found to encrypt the credentials!');
|
|
}
|
|
|
|
// Encrypt the data
|
|
const credentials = new Credentials(incomingData.name, incomingData.type, incomingData.nodesAccess);
|
|
credentials.setData(incomingData.data, encryptionKey);
|
|
const newCredentialsData = credentials.getDataToSave() as unknown as ICredentialsDb;
|
|
|
|
// Add special database related data
|
|
newCredentialsData.updatedAt = this.getCurrentDate();
|
|
|
|
// Update the credentials in DB
|
|
await Db.collections.Credentials!.update(id, newCredentialsData);
|
|
|
|
// We sadly get nothing back from "update". Neither if it updated a record
|
|
// nor the new value. So query now the hopefully updated entry.
|
|
const responseData = await Db.collections.Credentials!.findOne(id);
|
|
|
|
if (responseData === undefined) {
|
|
throw new ResponseHelper.ResponseError(`Credentials with id "${id}" could not be found to be updated.`, undefined, 400);
|
|
}
|
|
|
|
// Remove the encrypted data as it is not needed in the frontend
|
|
responseData.data = '';
|
|
|
|
// Convert to response format in which the id is a string
|
|
(responseData as unknown as ICredentialsResponse).id = responseData.id.toString();
|
|
return responseData as unknown as ICredentialsResponse;
|
|
}));
|
|
|
|
|
|
// Returns specific credentials
|
|
this.app.get('/rest/credentials/:id', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<ICredentialsDecryptedResponse | ICredentialsResponse | undefined> => {
|
|
const findQuery = {} as FindManyOptions;
|
|
|
|
// Make sure the variable has an expected value
|
|
if (req.query.includeData === 'true') {
|
|
req.query.includeData = true;
|
|
} else {
|
|
req.query.includeData = false;
|
|
}
|
|
|
|
if (req.query.includeData !== true) {
|
|
// Return only the fields we need
|
|
findQuery.select = ['id', 'name', 'type', 'nodesAccess', 'createdAt', 'updatedAt'];
|
|
}
|
|
|
|
const result = await Db.collections.Credentials!.findOne(req.params.id);
|
|
|
|
if (result === undefined) {
|
|
return result;
|
|
}
|
|
|
|
let encryptionKey = undefined;
|
|
if (req.query.includeData === true) {
|
|
encryptionKey = await UserSettings.getEncryptionKey();
|
|
if (encryptionKey === undefined) {
|
|
throw new Error('No encryption key got found to decrypt the credentials!');
|
|
}
|
|
|
|
const credentials = new Credentials(result.name, result.type, result.nodesAccess, result.data);
|
|
(result as ICredentialsDecryptedDb).data = credentials.getData(encryptionKey!);
|
|
}
|
|
|
|
(result as ICredentialsDecryptedResponse).id = result.id.toString();
|
|
|
|
return result as ICredentialsDecryptedResponse;
|
|
}));
|
|
|
|
|
|
// Returns all the saved credentials
|
|
this.app.get('/rest/credentials', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<ICredentialsResponse[]> => {
|
|
const findQuery = {} as FindManyOptions;
|
|
if (req.query.filter) {
|
|
findQuery.where = JSON.parse(req.query.filter);
|
|
if ((findQuery.where! as IDataObject).id !== undefined) {
|
|
// No idea if multiple where parameters make db search
|
|
// slower but to be sure that that is not the case we
|
|
// remove all unnecessary fields in case the id is defined.
|
|
findQuery.where = { id: (findQuery.where! as IDataObject).id };
|
|
}
|
|
}
|
|
|
|
findQuery.select = ['id', 'name', 'type', 'nodesAccess', 'createdAt', 'updatedAt'];
|
|
|
|
const results = await Db.collections.Credentials!.find(findQuery) as unknown as ICredentialsResponse[];
|
|
|
|
let encryptionKey = undefined;
|
|
if (req.query.includeData === true) {
|
|
encryptionKey = await UserSettings.getEncryptionKey();
|
|
if (encryptionKey === undefined) {
|
|
throw new Error('No encryption key got found to decrypt the credentials!');
|
|
}
|
|
}
|
|
|
|
let result;
|
|
for (result of results) {
|
|
(result as ICredentialsDecryptedResponse).id = result.id.toString();
|
|
}
|
|
|
|
return results;
|
|
}));
|
|
|
|
|
|
|
|
// ----------------------------------------
|
|
// Credential-Types
|
|
// ----------------------------------------
|
|
|
|
|
|
// Returns all the credential types which are defined in the loaded n8n-modules
|
|
this.app.get('/rest/credential-types', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<ICredentialType[]> => {
|
|
|
|
const returnData: ICredentialType[] = [];
|
|
|
|
const credentialTypes = CredentialTypes();
|
|
|
|
credentialTypes.getAll().forEach((credentialData) => {
|
|
returnData.push(credentialData);
|
|
});
|
|
|
|
return returnData;
|
|
}));
|
|
|
|
|
|
|
|
// ----------------------------------------
|
|
// Executions
|
|
// ----------------------------------------
|
|
|
|
|
|
// Returns all finished executions
|
|
this.app.get('/rest/executions', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<IExecutionsListResponse> => {
|
|
let filter: any = {}; // tslint:disable-line:no-any
|
|
|
|
if (req.query.filter) {
|
|
filter = JSON.parse(req.query.filter);
|
|
}
|
|
|
|
let limit = 20;
|
|
if (req.query.limit) {
|
|
limit = parseInt(req.query.limit, 10);
|
|
}
|
|
|
|
const countFilter = JSON.parse(JSON.stringify(filter));
|
|
if (req.query.lastId) {
|
|
filter.id = LessThan(req.query.lastId);
|
|
}
|
|
countFilter.select = ['id'];
|
|
|
|
const resultsPromise = Db.collections.Execution!.find({
|
|
select: [
|
|
'id',
|
|
'finished',
|
|
'mode',
|
|
'retryOf',
|
|
'retrySuccessId',
|
|
'startedAt',
|
|
'stoppedAt',
|
|
'workflowData',
|
|
],
|
|
where: filter,
|
|
order: {
|
|
id: 'DESC',
|
|
},
|
|
take: limit,
|
|
});
|
|
|
|
const countPromise = Db.collections.Execution!.count(countFilter);
|
|
|
|
const results: IExecutionFlattedDb[] = await resultsPromise;
|
|
const count = await countPromise;
|
|
|
|
const returnResults: IExecutionsSummary[] = [];
|
|
|
|
for (const result of results) {
|
|
returnResults.push({
|
|
id: result.id!.toString(),
|
|
finished: result.finished,
|
|
mode: result.mode,
|
|
retryOf: result.retryOf ? result.retryOf.toString() : undefined,
|
|
retrySuccessId: result.retrySuccessId ? result.retrySuccessId.toString() : undefined,
|
|
startedAt: result.startedAt,
|
|
stoppedAt: result.stoppedAt,
|
|
workflowId: result.workflowData!.id!.toString(),
|
|
workflowName: result.workflowData!.name,
|
|
});
|
|
}
|
|
|
|
return {
|
|
count,
|
|
results: returnResults,
|
|
};
|
|
}));
|
|
|
|
|
|
// Returns a specific execution
|
|
this.app.get('/rest/executions/:id', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<IExecutionFlattedResponse | undefined> => {
|
|
const result = await Db.collections.Execution!.findOne(req.params.id);
|
|
|
|
if (result === undefined) {
|
|
return undefined;
|
|
}
|
|
|
|
// Convert to response format in which the id is a string
|
|
(result as IExecutionFlatted as IExecutionFlattedResponse).id = result.id.toString();
|
|
return result as IExecutionFlatted as IExecutionFlattedResponse;
|
|
}));
|
|
|
|
|
|
// Retries a failed execution
|
|
this.app.post('/rest/executions/:id/retry', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<boolean> => {
|
|
// Get the data to execute
|
|
const fullExecutionDataFlatted = await Db.collections.Execution!.findOne(req.params.id);
|
|
|
|
if (fullExecutionDataFlatted === undefined) {
|
|
throw new ResponseHelper.ResponseError(`The execution with the id "${req.params.id}" does not exist.`, 404, 404);
|
|
}
|
|
|
|
const fullExecutionData = ResponseHelper.unflattenExecutionData(fullExecutionDataFlatted);
|
|
|
|
if (fullExecutionData.finished === true) {
|
|
throw new Error('The execution did succeed and can so not be retried.');
|
|
}
|
|
|
|
const executionMode = 'retry';
|
|
|
|
const credentials = await WorkflowCredentials(fullExecutionData.workflowData.nodes);
|
|
|
|
fullExecutionData.workflowData.active = false;
|
|
|
|
// Start the workflow
|
|
const data: IWorkflowExecutionDataProcess = {
|
|
credentials,
|
|
executionMode,
|
|
executionData: fullExecutionData.data,
|
|
retryOf: req.params.id,
|
|
workflowData: fullExecutionData.workflowData,
|
|
};
|
|
|
|
if (req.body.loadWorkflow === true) {
|
|
// Loads the currently saved workflow to execute instead of the
|
|
// one saved at the time of the execution.
|
|
const workflowId = fullExecutionData.workflowData.id;
|
|
data.workflowData = await Db.collections.Workflow!.findOne(workflowId) as IWorkflowBase;
|
|
|
|
if (data.workflowData === undefined) {
|
|
throw new Error(`The workflow with the ID "${workflowId}" could not be found and so the data not be loaded for the retry.`);
|
|
}
|
|
}
|
|
|
|
const workflowRunner = new WorkflowRunner();
|
|
const executionId = await workflowRunner.run(data);
|
|
|
|
const executionData = await this.activeExecutionsInstance.getPostExecutePromise(executionId);
|
|
|
|
if (executionData === undefined) {
|
|
throw new Error('The retry did not start for an unknown reason.');
|
|
}
|
|
|
|
return !!executionData.finished;
|
|
}));
|
|
|
|
|
|
// Delete Executions
|
|
// INFORMATION: We use POST instead of DELETE to not run into any issues
|
|
// with the query data getting to long
|
|
this.app.post('/rest/executions/delete', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<void> => {
|
|
const deleteData = req.body as IExecutionDeleteFilter;
|
|
|
|
if (deleteData.deleteBefore !== undefined) {
|
|
const filters = {
|
|
startedAt: LessThanOrEqual(deleteData.deleteBefore),
|
|
};
|
|
if (deleteData.filters !== undefined) {
|
|
Object.assign(filters, deleteData.filters);
|
|
}
|
|
|
|
await Db.collections.Execution!.delete(filters);
|
|
} else if (deleteData.ids !== undefined) {
|
|
// Deletes all executions with the given ids
|
|
await Db.collections.Execution!.delete(deleteData.ids);
|
|
} else {
|
|
throw new Error('Required body-data "ids" or "deleteBefore" is missing!');
|
|
}
|
|
}));
|
|
|
|
|
|
// ----------------------------------------
|
|
// Executing Workflows
|
|
// ----------------------------------------
|
|
|
|
|
|
// Returns all the currently working executions
|
|
this.app.get('/rest/executions-current', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<IExecutionsSummary[]> => {
|
|
const executingWorkflows = this.activeExecutionsInstance.getActiveExecutions();
|
|
|
|
const returnData: IExecutionsSummary[] = [];
|
|
|
|
let filter: any = {}; // tslint:disable-line:no-any
|
|
if (req.query.filter) {
|
|
filter = JSON.parse(req.query.filter);
|
|
}
|
|
|
|
for (const data of executingWorkflows) {
|
|
if (filter.workflowId !== undefined && filter.workflowId !== data.workflowId) {
|
|
continue;
|
|
}
|
|
returnData.push(
|
|
{
|
|
idActive: data.id.toString(),
|
|
workflowId: data.workflowId.toString(),
|
|
mode: data.mode,
|
|
retryOf: data.retryOf,
|
|
startedAt: new Date(data.startedAt),
|
|
}
|
|
);
|
|
}
|
|
|
|
return returnData;
|
|
}));
|
|
|
|
|
|
// Forces the execution to stop
|
|
this.app.post('/rest/executions-current/:id/stop', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<IExecutionsStopData> => {
|
|
const executionId = req.params.id;
|
|
|
|
// Stopt he execution and wait till it is done and we got the data
|
|
const result = await this.activeExecutionsInstance.stopExecution(executionId);
|
|
|
|
if (result === undefined) {
|
|
throw new Error(`The execution id "${executionId}" could not be found.`);
|
|
}
|
|
|
|
const returnData: IExecutionsStopData = {
|
|
mode: result.mode,
|
|
startedAt: new Date(result.startedAt),
|
|
stoppedAt: new Date(result.stoppedAt),
|
|
finished: result.finished,
|
|
};
|
|
|
|
return returnData;
|
|
}));
|
|
|
|
|
|
// Removes a test webhook
|
|
this.app.delete('/rest/test-webhook/:id', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<boolean> => {
|
|
const workflowId = req.params.id;
|
|
|
|
const workflowData = await Db.collections.Workflow!.findOne(workflowId);
|
|
if (workflowData === undefined) {
|
|
throw new ResponseHelper.ResponseError(`Could not find workflow with id "${workflowId}" so webhook could not be deleted!`);
|
|
}
|
|
|
|
const nodeTypes = NodeTypes();
|
|
const workflow = new Workflow(workflowId.toString(), workflowData.nodes, workflowData.connections, workflowData.active, nodeTypes, workflowData.staticData, workflowData.settings);
|
|
|
|
return this.testWebhooks.cancelTestWebhook(workflowId, workflow);
|
|
}));
|
|
|
|
|
|
|
|
// ----------------------------------------
|
|
// Options
|
|
// ----------------------------------------
|
|
|
|
// Returns all the available timezones
|
|
this.app.get('/rest/options/timezones', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<object> => {
|
|
return timezones;
|
|
}));
|
|
|
|
|
|
|
|
|
|
// ----------------------------------------
|
|
// Settings
|
|
// ----------------------------------------
|
|
|
|
|
|
// Returns the settings which are needed in the UI
|
|
this.app.get('/rest/settings', ResponseHelper.send(async (req: express.Request, res: express.Response): Promise<IN8nUISettings> => {
|
|
return {
|
|
endpointWebhook: this.endpointWebhook,
|
|
endpointWebhookTest: this.endpointWebhookTest,
|
|
saveDataErrorExecution: this.saveDataErrorExecution,
|
|
saveDataSuccessExecution: this.saveDataSuccessExecution,
|
|
saveManualExecutions: this.saveManualExecutions,
|
|
timezone: this.timezone,
|
|
urlBaseWebhook: WebhookHelpers.getWebhookBaseUrl(),
|
|
versionCli: this.versions!.cli,
|
|
};
|
|
}));
|
|
|
|
|
|
|
|
// ----------------------------------------
|
|
// Webhooks
|
|
// ----------------------------------------
|
|
|
|
|
|
// GET webhook requests
|
|
this.app.get(`/${this.endpointWebhook}/*`, async (req: express.Request, res: express.Response) => {
|
|
// Cut away the "/webhook/" to get the registred part of the url
|
|
const requestUrl = (req as ICustomRequest).parsedUrl!.pathname!.slice(this.endpointWebhook.length + 2);
|
|
|
|
let response;
|
|
try {
|
|
response = await this.activeWorkflowRunner.executeWebhook('GET', requestUrl, req, res);
|
|
} catch (error) {
|
|
ResponseHelper.sendErrorResponse(res, error);
|
|
return ;
|
|
}
|
|
|
|
if (response.noWebhookResponse === true) {
|
|
// Nothing else to do as the response got already sent
|
|
return;
|
|
}
|
|
|
|
ResponseHelper.sendSuccessResponse(res, response.data, true, response.responseCode);
|
|
});
|
|
|
|
|
|
// POST webhook requests
|
|
this.app.post(`/${this.endpointWebhook}/*`, async (req: express.Request, res: express.Response) => {
|
|
// Cut away the "/webhook/" to get the registred part of the url
|
|
const requestUrl = (req as ICustomRequest).parsedUrl!.pathname!.slice(this.endpointWebhook.length + 2);
|
|
|
|
let response;
|
|
try {
|
|
response = await this.activeWorkflowRunner.executeWebhook('POST', requestUrl, req, res);
|
|
} catch (error) {
|
|
ResponseHelper.sendErrorResponse(res, error);
|
|
return;
|
|
}
|
|
|
|
if (response.noWebhookResponse === true) {
|
|
// Nothing else to do as the response got already sent
|
|
return;
|
|
}
|
|
|
|
ResponseHelper.sendSuccessResponse(res, response.data, true, response.responseCode);
|
|
});
|
|
|
|
|
|
// GET webhook requests (test for UI)
|
|
this.app.get(`/${this.endpointWebhookTest}/*`, async (req: express.Request, res: express.Response) => {
|
|
// Cut away the "/webhook-test/" to get the registred part of the url
|
|
const requestUrl = (req as ICustomRequest).parsedUrl!.pathname!.slice(this.endpointWebhookTest.length + 2);
|
|
|
|
let response;
|
|
try {
|
|
response = await this.testWebhooks.callTestWebhook('GET', requestUrl, req, res);
|
|
} catch (error) {
|
|
ResponseHelper.sendErrorResponse(res, error);
|
|
return;
|
|
}
|
|
|
|
if (response.noWebhookResponse === true) {
|
|
// Nothing else to do as the response got already sent
|
|
return;
|
|
}
|
|
|
|
ResponseHelper.sendSuccessResponse(res, response.data, true, response.responseCode);
|
|
});
|
|
|
|
|
|
// POST webhook requests (test for UI)
|
|
this.app.post(`/${this.endpointWebhookTest}/*`, async (req: express.Request, res: express.Response) => {
|
|
// Cut away the "/webhook-test/" to get the registred part of the url
|
|
const requestUrl = (req as ICustomRequest).parsedUrl!.pathname!.slice(this.endpointWebhookTest.length + 2);
|
|
|
|
let response;
|
|
try {
|
|
response = await this.testWebhooks.callTestWebhook('POST', requestUrl, req, res);
|
|
} catch (error) {
|
|
ResponseHelper.sendErrorResponse(res, error);
|
|
return;
|
|
}
|
|
|
|
if (response.noWebhookResponse === true) {
|
|
// Nothing else to do as the response got already sent
|
|
return;
|
|
}
|
|
|
|
ResponseHelper.sendSuccessResponse(res, response.data, true, response.responseCode);
|
|
});
|
|
|
|
|
|
// Serve the website
|
|
const startTime = (new Date()).toUTCString();
|
|
const editorUiPath = require.resolve('n8n-editor-ui');
|
|
this.app.use('/', express.static(pathJoin(pathDirname(editorUiPath), 'dist'), {
|
|
index: 'index.html',
|
|
setHeaders: (res, path) => {
|
|
if (res.req && res.req.url === '/index.html') {
|
|
// Set last modified date manually to n8n start time so
|
|
// that it hopefully refreshes the page when a new version
|
|
// got used
|
|
res.setHeader('Last-Modified', startTime);
|
|
}
|
|
}
|
|
}));
|
|
}
|
|
|
|
}
|
|
|
|
export async function start(): Promise<void> {
|
|
const PORT = config.get('port');
|
|
|
|
const app = new App();
|
|
|
|
await app.config();
|
|
|
|
app.app.listen(PORT, async () => {
|
|
const versions = await GenericHelpers.getVersions();
|
|
console.log(`n8n ready on port ${PORT}`);
|
|
console.log(`Version: ${versions.cli}`);
|
|
});
|
|
}
|