n8n/packages/nodes-base/nodes/Pipedrive/PipedriveTrigger.node.ts
2019-07-10 08:14:40 +02:00

317 lines
7.2 KiB
TypeScript

import {
IHookFunctions,
IWebhookFunctions,
} from 'n8n-core';
import {
INodeTypeDescription,
INodeType,
IWebhookResonseData,
} from 'n8n-workflow';
import {
pipedriveApiRequest,
} from './GenericFunctions';
import * as basicAuth from 'basic-auth';
import { Response } from 'express';
function authorizationError(resp: Response, realm: string, responseCode: number, message?: string) {
if (message === undefined) {
message = 'Authorization problem!';
if (responseCode === 401) {
message = 'Authorization is required!';
} else if (responseCode === 403) {
message = 'Authorization data is wrong!';
}
}
resp.writeHead(responseCode, { 'WWW-Authenticate': `Basic realm="${realm}"` });
resp.end(message);
return {
noWebhookResponse: true,
};
}
export class PipedriveTrigger implements INodeType {
description: INodeTypeDescription = {
displayName: 'Pipedrive Trigger',
name: 'pipedriveTrigger',
icon: 'file:pipedrive.png',
group: ['trigger'],
version: 1,
description: 'Starts the workflow when Pipedrive events occure.',
defaults: {
name: 'Pipedrive Trigger',
color: '#559922',
},
inputs: [],
outputs: ['main'],
credentials: [
{
name: 'pipedriveApi',
required: true,
},
{
name: 'httpBasicAuth',
required: true,
displayOptions: {
show: {
authentication: [
'basicAuth',
],
},
},
},
],
webhooks: [
{
name: 'default',
httpMethod: 'POST',
reponseMode: 'onReceived',
path: 'webhook',
},
],
properties: [
{
displayName: 'Authentication',
name: 'authentication',
type: 'options',
options: [
{
name: 'Basic Auth',
value: 'basicAuth'
},
{
name: 'None',
value: 'none'
},
],
default: 'none',
description: 'If authentication should be activated for the webhook (makes it more scure).',
},
{
displayName: 'Action',
name: 'action',
type: 'options',
options: [
{
name: 'All',
value: '*',
description: 'Any change',
},
{
name: 'Added',
value: 'added',
description: 'Data got added'
},
{
name: 'Deleted',
value: 'deleted',
description: 'Data got deleted'
},
{
name: 'Merged',
value: 'merged',
description: 'Data got merged'
},
{
name: 'Updated',
value: 'updated',
description: 'Data got updated'
},
],
default: '*',
description: 'Type of action to receive notifications about.',
},
{
displayName: 'Object',
name: 'object',
type: 'options',
options: [
{
name: 'All',
value: '*',
},
{
name: 'Activity',
value: 'activity',
},
{
name: 'Activity Type',
value: 'activityType',
},
{
name: 'Deal',
value: 'deal',
},
{
name: 'Note',
value: 'note',
},
{
name: 'Organization',
value: 'organization',
},
{
name: 'Person',
value: 'person',
},
{
name: 'Pipeline',
value: 'pipeline',
},
{
name: 'Product',
value: 'product',
},
{
name: 'Stage',
value: 'stage',
},
{
name: 'User',
value: 'user',
},
],
default: '*',
description: 'Type of object to receive notifications about.',
},
],
};
// @ts-ignore (because of request)
webhookMethods = {
default: {
async checkExists(this: IHookFunctions): Promise<boolean> {
const webhookData = this.getWorkflowStaticData('node');
if (webhookData.webhookId === undefined) {
// No webhook id is set so no webhook can exist
return false;
}
// Webhook got created before so check if it still exists
const endpoint = `/webhooks`;
const responseData = await pipedriveApiRequest.call(this, 'GET', endpoint, {});
if (responseData.data === undefined) {
return false;
}
for (const existingData of responseData.data) {
if (existingData.id === webhookData.webhookId) {
// The webhook exists already
return true;
}
}
return false;
},
async create(this: IHookFunctions): Promise<boolean> {
const webhookUrl = this.getNodeWebhookUrl('default');
const authentication = this.getNodeParameter('authentication', 0) as string;
const eventAction = this.getNodeParameter('action') as string;
const eventObject = this.getNodeParameter('object') as string;
const endpoint = `/webhooks`;
const body = {
event_action: eventAction,
event_object: eventObject,
subscription_url: webhookUrl,
http_auth_user: undefined as string | undefined,
http_auth_password: undefined as string | undefined,
};
if (authentication === 'basicAuth') {
const httpBasicAuth = this.getCredentials('httpBasicAuth');
if (httpBasicAuth === undefined || !httpBasicAuth.user || !httpBasicAuth.password) {
// Data is not defined on node so can not authenticate
return false;
}
body.http_auth_user = httpBasicAuth.user as string;
body.http_auth_password = httpBasicAuth.password as string;
}
const responseData = await pipedriveApiRequest.call(this, 'POST', endpoint, body);
if (responseData.data === undefined || responseData.data.id === undefined) {
// Required data is missing so was not successful
return false;
}
const webhookData = this.getWorkflowStaticData('node');
webhookData.webhookId = responseData.data.id as string;
return true;
},
async delete(this: IHookFunctions): Promise<boolean> {
const webhookData = this.getWorkflowStaticData('node');
if (webhookData.webhookId !== undefined) {
const endpoint = `/webhooks/${webhookData.webhookId}`;
const body = {};
try {
await pipedriveApiRequest.call(this, 'DELETE', endpoint, body);
} catch (e) {
return false;
}
// Remove from the static workflow data so that it is clear
// that no webhooks are registred anymore
delete webhookData.webhookId;
delete webhookData.webhookEvents;
}
return true;
},
},
};
async webhook(this: IWebhookFunctions): Promise<IWebhookResonseData> {
const req = this.getRequestObject();
const resp = this.getResponseObject();
const realm = 'Webhook';
const authentication = this.getNodeParameter('authentication', 0) as string;
if (authentication === 'basicAuth') {
// Basic authorization is needed to call webhook
const httpBasicAuth = this.getCredentials('httpBasicAuth');
if (httpBasicAuth === undefined || !httpBasicAuth.user || !httpBasicAuth.password) {
// Data is not defined on node so can not authenticate
return authorizationError(resp, realm, 500, 'No authentication data defined on node!');
}
const basicAuthData = basicAuth(req);
if (basicAuthData === undefined) {
// Authorization data is missing
return authorizationError(resp, realm, 401);
}
if (basicAuthData.name !== httpBasicAuth!.user || basicAuthData.pass !== httpBasicAuth!.password) {
// Provided authentication data is wrong
return authorizationError(resp, realm, 403);
}
}
return {
workflowData: [
this.helpers.returnJsonArray(req.body)
],
};
}
}