mirror of
https://github.com/n8n-io/n8n.git
synced 2024-11-15 09:04:07 -08:00
567 lines
16 KiB
TypeScript
567 lines
16 KiB
TypeScript
import type {
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IExecuteFunctions,
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ICredentialsDecrypted,
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ICredentialTestFunctions,
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IDataObject,
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ILoadOptionsFunctions,
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INodeCredentialTestResult,
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INodeExecutionData,
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INodePropertyOptions,
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INodeType,
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INodeTypeDescription,
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IRequestOptions,
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} from 'n8n-workflow';
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import { NodeOperationError } from 'n8n-workflow';
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import moment from 'moment-timezone';
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import jwt from 'jsonwebtoken';
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import type { IMessage, IMessageUi } from './MessageInterface';
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import {
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// attachmentFields,
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// attachmentOperations,
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// incomingWebhookFields,
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// incomingWebhookOperations,
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// mediaFields,
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// mediaOperations,
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memberFields,
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memberOperations,
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messageFields,
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messageOperations,
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spaceFields,
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spaceOperations,
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} from './descriptions';
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import { googleApiRequest, googleApiRequestAllItems, validateJSON } from './GenericFunctions';
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export class GoogleChat implements INodeType {
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description: INodeTypeDescription = {
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displayName: 'Google Chat',
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name: 'googleChat',
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icon: 'file:googleChat.svg',
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group: ['input'],
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version: 1,
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subtitle: '={{$parameter["operation"] + ": " + $parameter["resource"]}}',
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description: 'Consume Google Chat API',
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defaults: {
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name: 'Google Chat',
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},
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inputs: ['main'],
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outputs: ['main'],
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credentials: [
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{
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name: 'googleApi',
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required: true,
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testedBy: 'testGoogleTokenAuth',
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},
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],
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properties: [
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{
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displayName: 'Resource',
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name: 'resource',
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required: true,
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noDataExpression: true,
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type: 'options',
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options: [
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// {
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// name: 'Attachment',
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// value: 'attachment',
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// },
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// {
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// name: 'Incoming Webhook',
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// value: 'incomingWebhook',
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// },
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// {
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// name: 'Media',
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// value: 'media',
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// },
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{
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name: 'Member',
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value: 'member',
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},
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{
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name: 'Message',
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value: 'message',
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},
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{
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name: 'Space',
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value: 'space',
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},
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],
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default: 'message',
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},
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// ...attachmentOperations,
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// ...attachmentFields,
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// ...incomingWebhookOperations,
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// ...incomingWebhookFields,
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// ...mediaOperations,
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// ...mediaFields,
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...memberOperations,
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...memberFields,
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...messageOperations,
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...messageFields,
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...spaceOperations,
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...spaceFields,
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],
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};
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methods = {
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loadOptions: {
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// Get all the spaces to display them to user so that they can
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// select them easily
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async getSpaces(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
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const returnData: INodePropertyOptions[] = [];
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const spaces = await googleApiRequestAllItems.call(this, 'spaces', 'GET', '/v1/spaces');
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for (const space of spaces) {
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returnData.push({
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name: space.displayName,
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value: space.name,
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});
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}
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return returnData;
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},
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},
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credentialTest: {
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async testGoogleTokenAuth(
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this: ICredentialTestFunctions,
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credential: ICredentialsDecrypted,
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): Promise<INodeCredentialTestResult> {
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const scopes = ['https://www.googleapis.com/auth/chat.bot'];
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const now = moment().unix();
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const email = (credential.data!.email as string).trim();
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const privateKey = (credential.data!.privateKey as string).replace(/\\n/g, '\n').trim();
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try {
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const signature = jwt.sign(
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{
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iss: email,
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sub: credential.data!.delegatedEmail || email,
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scope: scopes.join(' '),
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aud: 'https://oauth2.googleapis.com/token',
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iat: now,
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exp: now,
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},
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privateKey,
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{
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algorithm: 'RS256',
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header: {
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kid: privateKey,
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typ: 'JWT',
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alg: 'RS256',
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},
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},
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);
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const options: IRequestOptions = {
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headers: {
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'Content-Type': 'application/x-www-form-urlencoded',
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},
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method: 'POST',
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form: {
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grant_type: 'urn:ietf:params:oauth:grant-type:jwt-bearer',
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assertion: signature,
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},
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uri: 'https://oauth2.googleapis.com/token',
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json: true,
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};
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const response = await this.helpers.request(options);
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if (!response.access_token) {
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return {
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status: 'Error',
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message: JSON.stringify(response),
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};
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}
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} catch (err) {
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return {
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status: 'Error',
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message: `${err.message}`,
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};
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}
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return {
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status: 'OK',
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message: 'Connection successful!',
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};
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},
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},
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};
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async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
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const items = this.getInputData();
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const returnData: INodeExecutionData[] = [];
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const length = items.length;
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const qs: IDataObject = {};
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let responseData;
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const resource = this.getNodeParameter('resource', 0);
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const operation = this.getNodeParameter('operation', 0);
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for (let i = 0; i < length; i++) {
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try {
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if (resource === 'media') {
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if (operation === 'download') {
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// ----------------------------------------
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// media: download
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// ----------------------------------------
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// https://developers.google.com/chat/reference/rest/v1/media/download
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const resourceName = this.getNodeParameter('resourceName', i) as string;
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const endpoint = `/v1/media/${resourceName}?alt=media`;
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// Return the data as a buffer
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const encoding = null;
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responseData = await googleApiRequest.call(
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this,
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'GET',
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endpoint,
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undefined,
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undefined,
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undefined,
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undefined,
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encoding,
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);
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const newItem: INodeExecutionData = {
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json: items[i].json,
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binary: {},
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};
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if (items[i].binary !== undefined) {
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// Create a shallow copy of the binary data so that the old
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// data references which do not get changed still stay behind
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// but the incoming data does not get changed.
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Object.assign(newItem.binary!, items[i].binary);
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}
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items[i] = newItem;
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const binaryPropertyName = this.getNodeParameter('binaryPropertyName', i);
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items[i].binary![binaryPropertyName] = await this.helpers.prepareBinaryData(
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responseData as Buffer,
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endpoint,
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);
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}
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} else if (resource === 'space') {
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if (operation === 'get') {
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// ----------------------------------------
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// space: get
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// ----------------------------------------
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// https://developers.google.com/chat/reference/rest/v1/spaces/get
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const spaceId = this.getNodeParameter('spaceId', i) as string;
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responseData = await googleApiRequest.call(this, 'GET', `/v1/${spaceId}`);
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} else if (operation === 'getAll') {
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// ----------------------------------------
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// space: getAll
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// ----------------------------------------
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// https://developers.google.com/chat/reference/rest/v1/spaces/list
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const returnAll = this.getNodeParameter('returnAll', 0);
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if (returnAll) {
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responseData = await googleApiRequestAllItems.call(
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this,
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'spaces',
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'GET',
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'/v1/spaces',
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);
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} else {
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const limit = this.getNodeParameter('limit', i);
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qs.pageSize = limit;
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responseData = await googleApiRequest.call(this, 'GET', '/v1/spaces', undefined, qs);
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responseData = responseData.spaces;
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}
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}
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} else if (resource === 'member') {
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if (operation === 'get') {
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// ----------------------------------------
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// member: get
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// ----------------------------------------
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// https://developers.google.com/chat/reference/rest/v1/spaces.members/get
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const memberId = this.getNodeParameter('memberId', i) as string;
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responseData = await googleApiRequest.call(this, 'GET', `/v1/${memberId}`);
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} else if (operation === 'getAll') {
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// ----------------------------------------
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// member: getAll
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// ----------------------------------------
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// https://developers.google.com/chat/reference/rest/v1/spaces.members/list
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const spaceId = this.getNodeParameter('spaceId', i) as string;
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const returnAll = this.getNodeParameter('returnAll', 0);
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if (returnAll) {
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responseData = await googleApiRequestAllItems.call(
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this,
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'memberships',
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'GET',
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`/v1/${spaceId}/members`,
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undefined,
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qs,
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);
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} else {
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const limit = this.getNodeParameter('limit', i);
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qs.pageSize = limit;
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responseData = await googleApiRequest.call(
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this,
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'GET',
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`/v1/${spaceId}/members`,
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undefined,
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qs,
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);
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responseData = responseData.memberships;
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}
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}
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} else if (resource === 'message') {
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if (operation === 'create') {
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// ----------------------------------------
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// message: create
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// ----------------------------------------
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// https://developers.google.com/chat/reference/rest/v1/spaces.messages/create
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const spaceId = this.getNodeParameter('spaceId', i) as string;
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// get additional fields for threadKey and requestId
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const additionalFields = this.getNodeParameter('additionalFields', i);
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if (additionalFields.threadKey) {
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qs.threadKey = additionalFields.threadKey;
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}
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if (additionalFields.requestId) {
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qs.requestId = additionalFields.requestId;
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}
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let message: IMessage = {};
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const jsonParameters = this.getNodeParameter('jsonParameters', i);
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if (jsonParameters) {
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const messageJson = this.getNodeParameter('messageJson', i);
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if (messageJson instanceof Object) {
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// if it is an object
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message = messageJson as IMessage;
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} else {
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// if it is a string
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if (validateJSON(messageJson as string) !== undefined) {
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message = JSON.parse(messageJson as string) as IMessage;
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} else {
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throw new NodeOperationError(
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this.getNode(),
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'Message (JSON) must be a valid json',
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{ itemIndex: i },
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);
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}
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}
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} else {
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const messageUi = this.getNodeParameter('messageUi', i) as IMessageUi;
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if (messageUi.text && messageUi.text !== '') {
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message.text = messageUi.text;
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} else {
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throw new NodeOperationError(this.getNode(), 'Message Text must be provided.', {
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itemIndex: i,
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});
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}
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// // TODO: get cards from the UI
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// if (messageUi?.cards?.metadataValues && messageUi?.cards?.metadataValues.length !== 0) {
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// const cards = messageUi.cards.metadataValues as IDataObject[]; // TODO: map cards to messageUi.cards.metadataValues
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// message.cards = cards;
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// }
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}
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const body: IDataObject = {};
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Object.assign(body, message);
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responseData = await googleApiRequest.call(
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this,
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'POST',
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`/v1/${spaceId}/messages`,
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body,
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qs,
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);
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} else if (operation === 'delete') {
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// ----------------------------------------
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// message: delete
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// ----------------------------------------
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// https://developers.google.com/chat/reference/rest/v1/spaces.messages/delete
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const messageId = this.getNodeParameter('messageId', i) as string;
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responseData = await googleApiRequest.call(this, 'DELETE', `/v1/${messageId}`);
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} else if (operation === 'get') {
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// ----------------------------------------
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// message: get
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// ----------------------------------------
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// https://developers.google.com/chat/reference/rest/v1/spaces.messages/get
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const messageId = this.getNodeParameter('messageId', i) as string;
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responseData = await googleApiRequest.call(this, 'GET', `/v1/${messageId}`);
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} else if (operation === 'update') {
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// ----------------------------------------
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// message: update
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// ----------------------------------------
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// https://developers.google.com/chat/reference/rest/v1/spaces.messages/update
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const messageId = this.getNodeParameter('messageId', i) as string;
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let message: IMessage = {};
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const jsonParameters = this.getNodeParameter('jsonParameters', i);
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if (jsonParameters) {
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const updateFieldsJson = this.getNodeParameter('updateFieldsJson', i);
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if (updateFieldsJson instanceof Object) {
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// if it is an object
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message = updateFieldsJson as IMessage;
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} else {
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// if it is a string
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if (validateJSON(updateFieldsJson as string) !== undefined) {
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message = JSON.parse(updateFieldsJson as string) as IMessage;
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} else {
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throw new NodeOperationError(
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this.getNode(),
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'Update Fields (JSON) must be a valid json',
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{ itemIndex: i },
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);
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}
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}
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} else {
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const updateFieldsUi = this.getNodeParameter('updateFieldsUi', i) as IDataObject;
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if (updateFieldsUi.text) {
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message.text = updateFieldsUi.text as string;
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}
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// // TODO: get cards from the UI
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// if (updateFieldsUi.cards) {
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// message.cards = updateFieldsUi.cards as IDataObject[];
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// }
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}
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const body: IDataObject = {};
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Object.assign(body, message);
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// get update mask
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let updateMask = '';
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if (message.text) {
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updateMask += 'text,';
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}
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if (message.cards) {
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updateMask += 'cards,';
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}
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updateMask = updateMask.slice(0, -1); // remove trailing comma
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qs.updateMask = updateMask;
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responseData = await googleApiRequest.call(this, 'PUT', `/v1/${messageId}`, body, qs);
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}
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} else if (resource === 'attachment') {
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if (operation === 'get') {
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// ----------------------------------------
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// attachment: get
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// ----------------------------------------
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// https://developers.google.com/chat/reference/rest/v1/spaces.messages.attachments/get
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const attachmentName = this.getNodeParameter('attachmentName', i) as string;
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responseData = await googleApiRequest.call(this, 'GET', `/v1/${attachmentName}`);
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}
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} else if (resource === 'incomingWebhook') {
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if (operation === 'create') {
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// ----------------------------------------
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// incomingWebhook: create
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// ----------------------------------------
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// https://developers.google.com/chat/how-tos/webhooks
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const uri = this.getNodeParameter('incomingWebhookUrl', i) as string;
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// get additional fields for threadKey
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const additionalFields = this.getNodeParameter('additionalFields', i);
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if (additionalFields.threadKey) {
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qs.threadKey = additionalFields.threadKey;
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}
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let message: IMessage = {};
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const jsonParameters = this.getNodeParameter('jsonParameters', i);
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if (jsonParameters) {
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const messageJson = this.getNodeParameter('messageJson', i);
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if (messageJson instanceof Object) {
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// if it is an object
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message = messageJson as IMessage;
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} else {
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// if it is a string
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if (validateJSON(messageJson as string) !== undefined) {
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message = JSON.parse(messageJson as string) as IMessage;
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} else {
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throw new NodeOperationError(
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this.getNode(),
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'Message (JSON) must be a valid json',
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{ itemIndex: i },
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);
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}
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}
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} else {
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const messageUi = this.getNodeParameter('messageUi', i) as IMessageUi;
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if (messageUi.text && messageUi.text !== '') {
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message.text = messageUi.text;
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} else {
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throw new NodeOperationError(this.getNode(), 'Message Text must be provided.', {
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itemIndex: i,
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});
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}
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}
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const body: IDataObject = {};
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Object.assign(body, message);
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responseData = await googleApiRequest.call(this, 'POST', '', body, qs, uri, true);
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}
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}
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const executionData = this.helpers.constructExecutionMetaData(
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this.helpers.returnJsonArray(responseData as IDataObject),
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{ itemData: { item: i } },
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);
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returnData.push(...executionData);
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} catch (error) {
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if (this.continueOnFail(error)) {
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// Return the actual reason as error
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if (operation === 'download') {
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items[i].json = { error: error.message };
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} else {
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const executionErrorData = this.helpers.constructExecutionMetaData(
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this.helpers.returnJsonArray({ error: error.message }),
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{ itemData: { item: i } },
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);
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returnData.push(...executionErrorData);
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}
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continue;
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}
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throw error;
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}
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}
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if (operation === 'download') {
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// For file downloads the files get attached to the existing items
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return [items];
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} else {
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// For all other ones does the output get replaced
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return [returnData];
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}
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}
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}
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