mirror of
https://github.com/n8n-io/n8n.git
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331 lines
8.1 KiB
TypeScript
331 lines
8.1 KiB
TypeScript
import { IExecuteFunctions } from 'n8n-core';
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import {
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IDataObject,
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ILoadOptionsFunctions,
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INodeExecutionData,
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INodeListSearchItems,
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INodeListSearchResult,
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INodeType,
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INodeTypeDescription,
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} from 'n8n-workflow';
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import { awsApiRequestSOAP } from './GenericFunctions';
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export class AwsSns implements INodeType {
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description: INodeTypeDescription = {
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displayName: 'AWS SNS',
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name: 'awsSns',
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icon: 'file:sns.svg',
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group: ['output'],
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version: 1,
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subtitle: '={{$parameter["topic"]}}',
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description: 'Sends data to AWS SNS',
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defaults: {
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name: 'AWS SNS',
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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: 'aws',
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required: true,
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},
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],
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properties: [
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{
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displayName: 'Operation',
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name: 'operation',
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type: 'options',
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noDataExpression: true,
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options: [
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{
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name: 'Create',
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value: 'create',
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description: 'Create a topic',
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action: 'Create a topic',
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},
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{
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name: 'Delete',
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value: 'delete',
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description: 'Delete a topic',
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action: 'Delete a topic',
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},
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{
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name: 'Publish',
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value: 'publish',
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description: 'Publish a message to a topic',
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action: 'Publish a message to a topic',
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},
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],
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default: 'publish',
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},
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{
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displayName: 'Name',
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name: 'name',
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type: 'string',
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required: true,
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default: '',
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displayOptions: {
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show: {
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operation: ['create'],
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},
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},
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},
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{
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displayName: 'Options',
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name: 'options',
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type: 'collection',
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placeholder: 'Add Option',
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default: {},
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options: [
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{
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displayName: 'Display Name',
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name: 'displayName',
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type: 'string',
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default: '',
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description: 'The display name to use for a topic with SMS subscriptions',
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},
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{
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displayName: 'Fifo Topic',
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name: 'fifoTopic',
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type: 'boolean',
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default: false,
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description:
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'Whether the topic you want to create is a FIFO (first-in-first-out) topic',
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},
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],
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displayOptions: {
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show: {
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operation: ['create'],
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},
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},
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},
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{
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displayName: 'Topic',
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name: 'topic',
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type: 'resourceLocator',
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default: { mode: 'list', value: '' },
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required: true,
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modes: [
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{
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displayName: 'From List',
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name: 'list',
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type: 'list',
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placeholder: 'Select a topic...',
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typeOptions: {
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searchListMethod: 'listTopics',
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searchable: true,
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},
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},
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{
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displayName: 'By URL',
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name: 'url',
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type: 'string',
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placeholder:
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'https://us-east-1.console.aws.amazon.com/sns/v3/home?region=us-east-1#/topic/arn:aws:sns:us-east-1:777777777777:your_topic',
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validation: [
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{
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type: 'regex',
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properties: {
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regex:
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'https:\\/\\/[0-9a-zA-Z\\-_]+\\.console\\.aws\\.amazon\\.com\\/sns\\/v3\\/home\\?region\\=[0-9a-zA-Z\\-_]+\\#\\/topic\\/arn:aws:sns:[0-9a-zA-Z\\-_]+:[0-9]+:[0-9a-zA-Z\\-_]+(?:\\/.*|)',
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errorMessage: 'Not a valid AWS SNS Topic URL',
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},
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},
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],
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extractValue: {
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type: 'regex',
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regex:
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'https:\\/\\/[0-9a-zA-Z\\-_]+\\.console\\.aws\\.amazon\\.com\\/sns\\/v3\\/home\\?region\\=[0-9a-zA-Z\\-_]+\\#\\/topic\\/(arn:aws:sns:[0-9a-zA-Z\\-_]+:[0-9]+:[0-9a-zA-Z\\-_]+)(?:\\/.*|)',
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},
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},
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{
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displayName: 'ID',
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name: 'id',
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type: 'string',
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validation: [
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{
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type: 'regex',
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properties: {
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regex: 'arn:aws:sns:[0-9a-zA-Z\\-_]+:[0-9]+:[0-9a-zA-Z\\-_]+',
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errorMessage: 'Not a valid AWS SNS Topic ARN',
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},
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},
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],
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placeholder: 'arn:aws:sns:your-aws-region:777777777777:your_topic',
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},
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],
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displayOptions: {
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show: {
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operation: ['publish', 'delete'],
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},
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},
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},
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{
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displayName: 'Subject',
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name: 'subject',
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type: 'string',
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displayOptions: {
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show: {
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operation: ['publish'],
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},
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},
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default: '',
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required: true,
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description: 'Subject when the message is delivered to email endpoints',
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},
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{
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displayName: 'Message',
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name: 'message',
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type: 'string',
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displayOptions: {
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show: {
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operation: ['publish'],
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},
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},
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required: true,
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default: '',
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description: 'The message you want to send',
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},
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],
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};
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methods = {
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listSearch: {
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async listTopics(
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this: ILoadOptionsFunctions,
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filter?: string,
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paginationToken?: string,
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): Promise<INodeListSearchResult> {
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const returnData: INodeListSearchItems[] = [];
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const params = paginationToken ? `NextToken=${encodeURIComponent(paginationToken)}` : '';
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const data = await awsApiRequestSOAP.call(
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this,
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'sns',
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'GET',
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'/?Action=ListTopics&' + params,
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);
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let topics = data.ListTopicsResponse.ListTopicsResult.Topics.member;
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const nextToken = data.ListTopicsResponse.ListTopicsResult.NextToken;
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if (nextToken) {
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paginationToken = nextToken as string;
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} else {
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paginationToken = undefined;
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}
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if (!Array.isArray(topics)) {
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topics = [topics];
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}
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for (const topic of topics) {
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const topicArn = topic.TopicArn as string;
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const arnParsed = topicArn.split(':');
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const topicName = arnParsed[5];
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const awsRegion = arnParsed[3];
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if (filter && !topicName.includes(filter)) {
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continue;
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}
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returnData.push({
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name: topicName,
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value: topicArn,
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url: `https://${awsRegion}.console.aws.amazon.com/sns/v3/home?region=${awsRegion}#/topic/${topicArn}`,
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});
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}
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return { results: returnData, paginationToken };
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},
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},
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};
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async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
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const items = this.getInputData();
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const returnData: IDataObject[] = [];
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const operation = this.getNodeParameter('operation', 0);
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for (let i = 0; i < items.length; i++) {
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try {
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if (operation === 'create') {
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let name = this.getNodeParameter('name', i) as string;
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const fifoTopic = this.getNodeParameter('options.fifoTopic', i, false) as boolean;
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const displayName = this.getNodeParameter('options.displayName', i, '') as string;
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const params: string[] = [];
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if (fifoTopic && !name.endsWith('.fifo')) {
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name = `${name}.fifo`;
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}
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params.push(`Name=${name}`);
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if (fifoTopic) {
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params.push('Attributes.entry.1.key=FifoTopic');
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params.push('Attributes.entry.1.value=true');
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}
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if (displayName) {
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params.push('Attributes.entry.2.key=DisplayName');
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params.push(`Attributes.entry.2.value=${displayName}`);
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}
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const responseData = await awsApiRequestSOAP.call(
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this,
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'sns',
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'GET',
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'/?Action=CreateTopic&' + params.join('&'),
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);
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returnData.push({
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TopicArn: responseData.CreateTopicResponse.CreateTopicResult.TopicArn,
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} as IDataObject);
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}
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if (operation === 'delete') {
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const topic = this.getNodeParameter('topic', i, undefined, {
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extractValue: true,
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}) as string;
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const params = ['TopicArn=' + topic];
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await awsApiRequestSOAP.call(
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this,
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'sns',
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'GET',
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'/?Action=DeleteTopic&' + params.join('&'),
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);
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// response of delete is the same no matter if topic was deleted or not
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returnData.push({ success: true } as IDataObject);
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}
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if (operation === 'publish') {
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const topic = this.getNodeParameter('topic', i, undefined, {
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extractValue: true,
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}) as string;
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const params = [
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'TopicArn=' + topic,
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'Subject=' + (this.getNodeParameter('subject', i) as string),
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'Message=' + (this.getNodeParameter('message', i) as string),
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];
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const responseData = await awsApiRequestSOAP.call(
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this,
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'sns',
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'GET',
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'/?Action=Publish&' + params.join('&'),
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);
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returnData.push({
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MessageId: responseData.PublishResponse.PublishResult.MessageId,
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} as IDataObject);
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}
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} catch (error) {
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if (this.continueOnFail()) {
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returnData.push({ error: error.message });
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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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return [this.helpers.returnJsonArray(returnData)];
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}
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}
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