n8n/packages/nodes-base/nodes/Wufoo/WufooTrigger.node.ts
2022-07-14 22:05:11 +02:00

249 lines
6.2 KiB
TypeScript

import {
IHookFunctions,
IWebhookFunctions,
} from 'n8n-core';
import {
IDataObject,
ILoadOptionsFunctions,
INodePropertyOptions,
INodeType,
INodeTypeDescription,
IWebhookResponseData,
} from 'n8n-workflow';
import {
wufooApiRequest,
} from './GenericFunctions';
import {
IField,
IFormQuery,
IWebhook,
} from './Interface';
import {
randomBytes,
} from 'crypto';
export class WufooTrigger implements INodeType {
description: INodeTypeDescription = {
displayName: 'Wufoo Trigger',
name: 'wufooTrigger',
// eslint-disable-next-line n8n-nodes-base/node-class-description-icon-not-svg
icon: 'file:wufoo.png',
group: ['trigger'],
version: 1,
description: 'Handle Wufoo events via webhooks',
defaults: {
name: 'Wufoo Trigger',
},
inputs: [],
outputs: ['main'],
credentials: [
{
name: 'wufooApi',
required: true,
},
],
webhooks: [
{
name: 'default',
httpMethod: 'POST',
responseMode: 'onReceived',
path: 'webhook',
},
],
properties: [
{
displayName: 'Forms Name or ID',
name: 'form',
type: 'options',
required: true,
default: '',
typeOptions: {
loadOptionsMethod: 'getForms',
},
description: 'The form upon which will trigger this node when a new entry is made. Choose from the list, or specify an ID using an <a href="https://docs.n8n.io/code-examples/expressions/">expression</a>.',
},
{
displayName: 'Only Answers',
name: 'onlyAnswers',
type: 'boolean',
default: true,
description: 'Whether to return only the answers of the form and not any of the other data',
},
],
};
methods = {
loadOptions: {
async getForms(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
const returnData: INodePropertyOptions[] = [];
const body: IFormQuery = { includeTodayCount: true };
// https://wufoo.github.io/docs/#all-forms
const formObject = await wufooApiRequest.call(this, 'GET', 'forms.json', body);
for (const form of formObject.Forms) {
const name = form.Name;
const value = form.Hash;
returnData.push({
name,
value,
});
}
// Entries submitted on the same day are present in separate property in data object
if (formObject.EntryCountToday) {
for (const form of formObject.EntryCountToday) {
const name = form.Name;
const value = form.Hash;
returnData.push({
name,
value,
});
}
}
return returnData;
},
},
};
// @ts-ignore
webhookMethods = {
default: {
// No API endpoint to allow checking of existing webhooks.
// Creating new webhook will not overwrite existing one if parameters are the same.
// Otherwise an update occurs.
async checkExists(this: IHookFunctions): Promise<boolean> {
return false;
},
async create(this: IHookFunctions): Promise<boolean> {
const webhookUrl = this.getNodeWebhookUrl('default');
const webhookData = this.getWorkflowStaticData('node');
const formHash = this.getNodeParameter('form') as IDataObject;
const endpoint = `forms/${formHash}/webhooks.json`;
// Handshake key for webhook endpoint protection
webhookData.handshakeKey = randomBytes(20).toString('hex') as string;
const body: IWebhook = {
url: webhookUrl as string,
handshakeKey: webhookData.handshakeKey as string,
metadata: true,
};
const result = await wufooApiRequest.call(this, 'PUT', endpoint, body);
webhookData.webhookId = result.WebHookPutResult.Hash;
return true;
},
async delete(this: IHookFunctions): Promise<boolean> {
const webhookData = this.getWorkflowStaticData('node');
const formHash = this.getNodeParameter('form') as IDataObject;
const endpoint = `forms/${formHash}/webhooks/${webhookData.webhookId}.json`;
try {
await wufooApiRequest.call(this, 'DELETE', endpoint);
} catch (error) {
return false;
}
delete webhookData.webhookId;
delete webhookData.handshakeKey;
return true;
},
},
};
async webhook(this: IWebhookFunctions): Promise<IWebhookResponseData> {
const req = this.getRequestObject();
const body = this.getBodyData();
const webhookData = this.getWorkflowStaticData('node');
const onlyAnswers = this.getNodeParameter('onlyAnswers') as boolean;
const entries: IDataObject = {};
let returnObject: IDataObject = {};
if (req.body.HandshakeKey !== webhookData.handshakeKey) {
return {};
}
const fieldsObject = JSON.parse(req.body.FieldStructure);
fieldsObject.Fields.map((field: IField) => {
// TODO
// Handle docusign field
if (field.Type === 'file') {
entries[field.Title] = req.body[`${field.ID}-url`];
} else if (field.Type === 'address') {
const address: IDataObject = {};
for (const subfield of field.SubFields) {
address[subfield.Label] = body[subfield.ID];
}
entries[field.Title] = address;
} else if (field.Type === 'checkbox') {
const responses: string[] = [];
for (const subfield of field.SubFields) {
if (body[subfield.ID] !== '') {
responses.push(body[subfield.ID] as string);
}
}
entries[field.Title] = responses;
} else if (field.Type === 'likert') {
const likert: IDataObject = {};
for (const subfield of field.SubFields) {
likert[subfield.Label] = body[subfield.ID];
}
entries[field.Title] = likert;
} else if (field.Type === 'shortname') {
const shortname: IDataObject = {};
for (const subfield of field.SubFields) {
shortname[subfield.Label] = body[subfield.ID];
}
entries[field.Title] = shortname;
} else {
entries[field.Title] = req.body[field.ID];
}
});
if (onlyAnswers === false) {
returnObject = {
createdBy: req.body.CreatedBy as string,
entryId: req.body.EntryId as number,
dateCreated: req.body.DateCreated as Date,
formId: req.body.FormId as string,
formStructure: JSON.parse(req.body.FormStructure),
fieldStructure: JSON.parse(req.body.FieldStructure),
entries,
};
return {
workflowData: [
this.helpers.returnJsonArray([returnObject as unknown as IDataObject]),
],
};
} else {
return {
workflowData: [
this.helpers.returnJsonArray(entries as unknown as IDataObject),
],
};
}
}
}