mirror of
https://github.com/n8n-io/n8n.git
synced 2024-11-10 14:44:05 -08:00
517 lines
11 KiB
TypeScript
517 lines
11 KiB
TypeScript
import set from 'lodash.set';
|
|
|
|
import type {
|
|
IExecuteFunctions,
|
|
ILoadOptionsFunctions,
|
|
INodeExecutionData,
|
|
INodePropertyOptions,
|
|
INodeType,
|
|
INodeTypeDescription,
|
|
JsonObject,
|
|
} from 'n8n-workflow';
|
|
import { deepCopy } from 'n8n-workflow';
|
|
|
|
import type { BinaryToTextEncoding } from 'crypto';
|
|
import { createHash, createHmac, createSign, getHashes, randomBytes } from 'crypto';
|
|
|
|
import { v4 as uuid } from 'uuid';
|
|
|
|
export class Crypto implements INodeType {
|
|
description: INodeTypeDescription = {
|
|
displayName: 'Crypto',
|
|
name: 'crypto',
|
|
icon: 'fa:key',
|
|
group: ['transform'],
|
|
version: 1,
|
|
subtitle: '={{$parameter["action"]}}',
|
|
description: 'Provide cryptographic utilities',
|
|
defaults: {
|
|
name: 'Crypto',
|
|
color: '#408000',
|
|
},
|
|
inputs: ['main'],
|
|
outputs: ['main'],
|
|
properties: [
|
|
{
|
|
displayName: 'Action',
|
|
name: 'action',
|
|
type: 'options',
|
|
options: [
|
|
{
|
|
name: 'Generate',
|
|
description: 'Generate random string',
|
|
value: 'generate',
|
|
action: 'Generate random string',
|
|
},
|
|
{
|
|
name: 'Hash',
|
|
description: 'Hash a text in a specified format',
|
|
value: 'hash',
|
|
action: 'Hash a text in a specified format',
|
|
},
|
|
{
|
|
name: 'Hmac',
|
|
description: 'Hmac a text in a specified format',
|
|
value: 'hmac',
|
|
action: 'HMAC a text in a specified format',
|
|
},
|
|
{
|
|
name: 'Sign',
|
|
description: 'Sign a string using a private key',
|
|
value: 'sign',
|
|
action: 'Sign a string using a private key',
|
|
},
|
|
],
|
|
default: 'hash',
|
|
},
|
|
{
|
|
displayName: 'Type',
|
|
name: 'type',
|
|
displayOptions: {
|
|
show: {
|
|
action: ['hash'],
|
|
},
|
|
},
|
|
type: 'options',
|
|
options: [
|
|
{
|
|
name: 'MD5',
|
|
value: 'MD5',
|
|
},
|
|
{
|
|
name: 'SHA256',
|
|
value: 'SHA256',
|
|
},
|
|
{
|
|
name: 'SHA3-256',
|
|
value: 'SHA3-256',
|
|
},
|
|
{
|
|
name: 'SHA3-384',
|
|
value: 'SHA3-384',
|
|
},
|
|
{
|
|
name: 'SHA3-512',
|
|
value: 'SHA3-512',
|
|
},
|
|
{
|
|
name: 'SHA384',
|
|
value: 'SHA384',
|
|
},
|
|
{
|
|
name: 'SHA512',
|
|
value: 'SHA512',
|
|
},
|
|
],
|
|
default: 'MD5',
|
|
description: 'The hash type to use',
|
|
required: true,
|
|
},
|
|
{
|
|
displayName: 'Value',
|
|
name: 'value',
|
|
displayOptions: {
|
|
show: {
|
|
action: ['hash'],
|
|
},
|
|
},
|
|
type: 'string',
|
|
default: '',
|
|
description: 'The value that should be hashed',
|
|
required: true,
|
|
},
|
|
{
|
|
displayName: 'Property Name',
|
|
name: 'dataPropertyName',
|
|
type: 'string',
|
|
default: 'data',
|
|
required: true,
|
|
displayOptions: {
|
|
show: {
|
|
action: ['hash'],
|
|
},
|
|
},
|
|
description: 'Name of the property to which to write the hash',
|
|
},
|
|
{
|
|
displayName: 'Encoding',
|
|
name: 'encoding',
|
|
displayOptions: {
|
|
show: {
|
|
action: ['hash'],
|
|
},
|
|
},
|
|
type: 'options',
|
|
options: [
|
|
{
|
|
name: 'BASE64',
|
|
value: 'base64',
|
|
},
|
|
{
|
|
name: 'HEX',
|
|
value: 'hex',
|
|
},
|
|
],
|
|
default: 'hex',
|
|
required: true,
|
|
},
|
|
{
|
|
displayName: 'Type',
|
|
name: 'type',
|
|
displayOptions: {
|
|
show: {
|
|
action: ['hmac'],
|
|
},
|
|
},
|
|
type: 'options',
|
|
options: [
|
|
{
|
|
name: 'MD5',
|
|
value: 'MD5',
|
|
},
|
|
{
|
|
name: 'SHA256',
|
|
value: 'SHA256',
|
|
},
|
|
{
|
|
name: 'SHA3-256',
|
|
value: 'SHA3-256',
|
|
},
|
|
{
|
|
name: 'SHA3-384',
|
|
value: 'SHA3-384',
|
|
},
|
|
{
|
|
name: 'SHA3-512',
|
|
value: 'SHA3-512',
|
|
},
|
|
{
|
|
name: 'SHA384',
|
|
value: 'SHA384',
|
|
},
|
|
{
|
|
name: 'SHA512',
|
|
value: 'SHA512',
|
|
},
|
|
],
|
|
default: 'MD5',
|
|
description: 'The hash type to use',
|
|
required: true,
|
|
},
|
|
{
|
|
displayName: 'Value',
|
|
name: 'value',
|
|
displayOptions: {
|
|
show: {
|
|
action: ['hmac'],
|
|
},
|
|
},
|
|
type: 'string',
|
|
default: '',
|
|
description: 'The value of which the hmac should be created',
|
|
required: true,
|
|
},
|
|
{
|
|
displayName: 'Property Name',
|
|
name: 'dataPropertyName',
|
|
type: 'string',
|
|
default: 'data',
|
|
required: true,
|
|
displayOptions: {
|
|
show: {
|
|
action: ['hmac'],
|
|
},
|
|
},
|
|
description: 'Name of the property to which to write the hmac',
|
|
},
|
|
{
|
|
displayName: 'Secret',
|
|
name: 'secret',
|
|
displayOptions: {
|
|
show: {
|
|
action: ['hmac'],
|
|
},
|
|
},
|
|
type: 'string',
|
|
default: '',
|
|
required: true,
|
|
},
|
|
{
|
|
displayName: 'Encoding',
|
|
name: 'encoding',
|
|
displayOptions: {
|
|
show: {
|
|
action: ['hmac'],
|
|
},
|
|
},
|
|
type: 'options',
|
|
options: [
|
|
{
|
|
name: 'BASE64',
|
|
value: 'base64',
|
|
},
|
|
{
|
|
name: 'HEX',
|
|
value: 'hex',
|
|
},
|
|
],
|
|
default: 'hex',
|
|
required: true,
|
|
},
|
|
{
|
|
displayName: 'Value',
|
|
name: 'value',
|
|
displayOptions: {
|
|
show: {
|
|
action: ['sign'],
|
|
},
|
|
},
|
|
type: 'string',
|
|
default: '',
|
|
description: 'The value that should be signed',
|
|
required: true,
|
|
},
|
|
{
|
|
displayName: 'Property Name',
|
|
name: 'dataPropertyName',
|
|
type: 'string',
|
|
default: 'data',
|
|
required: true,
|
|
displayOptions: {
|
|
show: {
|
|
action: ['sign'],
|
|
},
|
|
},
|
|
description: 'Name of the property to which to write the signed value',
|
|
},
|
|
{
|
|
displayName: 'Algorithm Name or ID',
|
|
name: 'algorithm',
|
|
displayOptions: {
|
|
show: {
|
|
action: ['sign'],
|
|
},
|
|
},
|
|
type: 'options',
|
|
description:
|
|
'Choose from the list, or specify an ID using an <a href="https://docs.n8n.io/code-examples/expressions/">expression</a>',
|
|
typeOptions: {
|
|
loadOptionsMethod: 'getHashes',
|
|
},
|
|
default: '',
|
|
required: true,
|
|
},
|
|
{
|
|
displayName: 'Encoding',
|
|
name: 'encoding',
|
|
displayOptions: {
|
|
show: {
|
|
action: ['sign'],
|
|
},
|
|
},
|
|
type: 'options',
|
|
options: [
|
|
{
|
|
name: 'BASE64',
|
|
value: 'base64',
|
|
},
|
|
{
|
|
name: 'HEX',
|
|
value: 'hex',
|
|
},
|
|
],
|
|
default: 'hex',
|
|
required: true,
|
|
},
|
|
{
|
|
displayName: 'Private Key',
|
|
name: 'privateKey',
|
|
displayOptions: {
|
|
show: {
|
|
action: ['sign'],
|
|
},
|
|
},
|
|
type: 'string',
|
|
description: 'Private key to use when signing the string',
|
|
default: '',
|
|
required: true,
|
|
},
|
|
{
|
|
displayName: 'Property Name',
|
|
name: 'dataPropertyName',
|
|
type: 'string',
|
|
default: 'data',
|
|
required: true,
|
|
displayOptions: {
|
|
show: {
|
|
action: ['generate'],
|
|
},
|
|
},
|
|
description: 'Name of the property to which to write the random string',
|
|
},
|
|
{
|
|
displayName: 'Type',
|
|
name: 'encodingType',
|
|
displayOptions: {
|
|
show: {
|
|
action: ['generate'],
|
|
},
|
|
},
|
|
type: 'options',
|
|
options: [
|
|
{
|
|
name: 'ASCII',
|
|
value: 'ascii',
|
|
},
|
|
{
|
|
name: 'BASE64',
|
|
value: 'base64',
|
|
},
|
|
{
|
|
name: 'HEX',
|
|
value: 'hex',
|
|
},
|
|
{
|
|
name: 'UUID',
|
|
value: 'uuid',
|
|
},
|
|
],
|
|
default: 'uuid',
|
|
description: 'Encoding that will be used to generate string',
|
|
required: true,
|
|
},
|
|
{
|
|
displayName: 'Length',
|
|
name: 'stringLength',
|
|
type: 'number',
|
|
default: 32,
|
|
description: 'Length of the generated string',
|
|
displayOptions: {
|
|
show: {
|
|
action: ['generate'],
|
|
encodingType: ['ascii', 'base64', 'hex'],
|
|
},
|
|
},
|
|
},
|
|
],
|
|
};
|
|
|
|
methods = {
|
|
loadOptions: {
|
|
// Get all the hashes to display them to user so that they can
|
|
// select them easily
|
|
async getHashes(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
|
|
const returnData: INodePropertyOptions[] = [];
|
|
const hashes = getHashes();
|
|
for (const hash of hashes) {
|
|
const hashName = hash;
|
|
const hashId = hash;
|
|
returnData.push({
|
|
name: hashName,
|
|
value: hashId,
|
|
});
|
|
}
|
|
return returnData;
|
|
},
|
|
},
|
|
};
|
|
|
|
async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
|
|
const items = this.getInputData();
|
|
|
|
const returnData: INodeExecutionData[] = [];
|
|
const length = items.length;
|
|
const action = this.getNodeParameter('action', 0) as string;
|
|
|
|
let item: INodeExecutionData;
|
|
for (let i = 0; i < length; i++) {
|
|
try {
|
|
item = items[i];
|
|
const dataPropertyName = this.getNodeParameter('dataPropertyName', i);
|
|
const value = this.getNodeParameter('value', i, '') as string;
|
|
let newValue;
|
|
|
|
if (action === 'generate') {
|
|
const encodingType = this.getNodeParameter('encodingType', i);
|
|
if (encodingType === 'uuid') {
|
|
newValue = uuid();
|
|
} else {
|
|
const stringLength = this.getNodeParameter('stringLength', i) as number;
|
|
if (encodingType === 'base64') {
|
|
newValue = randomBytes(stringLength)
|
|
.toString(encodingType as BufferEncoding)
|
|
.replace(/\W/g, '')
|
|
.slice(0, stringLength);
|
|
} else {
|
|
newValue = randomBytes(stringLength)
|
|
.toString(encodingType as BufferEncoding)
|
|
.slice(0, stringLength);
|
|
}
|
|
}
|
|
}
|
|
if (action === 'hash') {
|
|
const type = this.getNodeParameter('type', i) as string;
|
|
const encoding = this.getNodeParameter('encoding', i) as BinaryToTextEncoding;
|
|
newValue = createHash(type).update(value).digest(encoding);
|
|
}
|
|
if (action === 'hmac') {
|
|
const type = this.getNodeParameter('type', i) as string;
|
|
const secret = this.getNodeParameter('secret', i) as string;
|
|
const encoding = this.getNodeParameter('encoding', i) as BinaryToTextEncoding;
|
|
newValue = createHmac(type, secret).update(value).digest(encoding);
|
|
}
|
|
if (action === 'sign') {
|
|
const algorithm = this.getNodeParameter('algorithm', i) as string;
|
|
const encoding = this.getNodeParameter('encoding', i) as BinaryToTextEncoding;
|
|
const privateKey = this.getNodeParameter('privateKey', i) as string;
|
|
const sign = createSign(algorithm);
|
|
sign.write(value);
|
|
sign.end();
|
|
newValue = sign.sign(privateKey, encoding);
|
|
}
|
|
|
|
let newItem: INodeExecutionData;
|
|
if (dataPropertyName.includes('.')) {
|
|
// Uses dot notation so copy all data
|
|
newItem = {
|
|
json: deepCopy(item.json),
|
|
pairedItem: {
|
|
item: i,
|
|
},
|
|
};
|
|
} else {
|
|
// Does not use dot notation so shallow copy is enough
|
|
newItem = {
|
|
json: { ...item.json },
|
|
pairedItem: {
|
|
item: i,
|
|
},
|
|
};
|
|
}
|
|
|
|
if (item.binary !== undefined) {
|
|
newItem.binary = item.binary;
|
|
}
|
|
|
|
set(newItem, `json.${dataPropertyName}`, newValue);
|
|
|
|
returnData.push(newItem);
|
|
} catch (error) {
|
|
if (this.continueOnFail()) {
|
|
returnData.push({
|
|
json: {
|
|
error: (error as JsonObject).message,
|
|
},
|
|
pairedItem: {
|
|
item: i,
|
|
},
|
|
});
|
|
continue;
|
|
}
|
|
throw error;
|
|
}
|
|
}
|
|
return this.prepareOutputData(returnData);
|
|
}
|
|
}
|