n8n/packages/nodes-base/nodes/ReadFileFromUrl.node.ts
2019-08-01 22:55:33 +02:00

89 lines
2.3 KiB
TypeScript

import { IExecuteSingleFunctions } from 'n8n-core';
import {
INodeTypeDescription,
INodeExecutionData,
INodeType,
} from 'n8n-workflow';
import { UriOptions } from 'request';
export class ReadFileFromUrl implements INodeType {
description: INodeTypeDescription = {
displayName: 'Read File From Url',
name: 'readFileFromUrl',
icon: 'fa:file-download',
group: ['input'],
version: 1,
description: 'Reads a file from an URL',
defaults: {
name: 'Read File URL',
color: '#119955',
},
inputs: ['main'],
outputs: ['main'],
properties: [
{
displayName: 'URL',
name: 'url',
type: 'string',
default: '',
required: true,
placeholder: 'http://example.com/index.html',
description: 'URL of the file to read.',
},
{
displayName: 'Property Name',
name: 'dataPropertyName',
type: 'string',
default: 'data',
description: 'Name of the binary property to which to<br />write the data of the URL.',
},
{
displayName: 'Ignore SSL Issues',
name: 'allowUnauthorizedCerts',
type: 'boolean',
default: false,
description: 'Still download the file even if SSL certificate validation is not possible.',
},
]
};
async executeSingle(this: IExecuteSingleFunctions): Promise<INodeExecutionData> {
const url = this.getNodeParameter('url') as string;
const dataPropertyName = this.getNodeParameter('dataPropertyName') as string;
const options: UriOptions = {
uri: url,
// @ts-ignore
encoding: null,
rejectUnauthorized: !this.getNodeParameter('allowUnauthorizedCerts', false) as boolean,
};
// TODO: Should have a catch here
const data = await this.helpers.request(options);
// Get the filename and also add it to the binary data
const fileName = (url).split('/').pop();
// Get the current item and add the binary data
const item = this.getInputData();
const newItem: INodeExecutionData = {
json: item.json,
binary: {},
};
if (item.binary !== undefined) {
// Create a shallow copy of the binary data so that the old
// data references which do not get changed still stay behind
// but the incoming data does not get changed.
Object.assign(newItem.binary, item.binary);
}
newItem.binary![dataPropertyName as string] = await this.helpers.prepareBinaryData(data, fileName);
return newItem;
}
}