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', 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: 'form', type: 'options', required: true, default: '', typeOptions: { loadOptionsMethod: 'getForms', }, description: 'The form upon which will trigger this node when a new entry is made.', }, { displayName: 'Only Answers', name: 'onlyAnswers', type: 'boolean', default: true, description: 'Returns only the answers of the form and not any of the other data.', }, ], }; methods = { loadOptions: { async getForms(this: ILoadOptionsFunctions): Promise { 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 { return false; }, async create(this: IHookFunctions): Promise { const webhookUrl = this.getNodeWebhookUrl('default'); const webhookData = this.getWorkflowStaticData('node'); const formHash = this.getNodeParameter('form') as IDataObject; const endpoint = `forms/${formHash}/webhooks.json`; // Handshake key for webhook endpoint protection webhookData.handshakeKey = randomBytes(20).toString('hex') as string; const body: IWebhook = { url: webhookUrl as string, handshakeKey: webhookData.handshakeKey as string, metadata: true, }; const result = await wufooApiRequest.call(this, 'PUT', endpoint, body); webhookData.webhookId = result.WebHookPutResult.Hash; return true; }, async delete(this: IHookFunctions): Promise { const webhookData = this.getWorkflowStaticData('node'); const formHash = this.getNodeParameter('form') as IDataObject; const endpoint = `forms/${formHash}/webhooks/${webhookData.webhookId}.json`; try { await wufooApiRequest.call(this, 'DELETE', endpoint); } catch (error) { return false; } delete webhookData.webhookId; delete webhookData.handshakeKey; return true; }, }, }; async webhook(this: IWebhookFunctions): Promise { const req = this.getRequestObject(); const body = this.getBodyData(); const webhookData = this.getWorkflowStaticData('node'); const onlyAnswers = this.getNodeParameter('onlyAnswers') as boolean; const entries: IDataObject = {}; let returnObject: IDataObject = {}; if (req.body.HandshakeKey !== webhookData.handshakeKey) { return {}; } const fieldsObject = JSON.parse(req.body.FieldStructure); fieldsObject.Fields.map((field: IField) => { // TODO // Handle docusign field if (field.Type === 'file') { entries[field.Title] = req.body[`${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), ], }; } } }