n8n-nodes-gpg
Version:
This package contains the GPG node for n8n. It allows you to encrypt, decrypt, sign and verify files using openpgp keys.
263 lines • 12.2 kB
JavaScript
"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Gpg = void 0;
const n8n_workflow_1 = require("n8n-workflow");
const openpgp = __importStar(require("openpgp"));
class Gpg {
constructor() {
this.description = {
displayName: 'GPG',
name: 'gpg',
icon: 'file:gpg.svg',
group: ['input'],
version: 1,
subtitle: '={{$parameter["operation"]}}',
description: 'Use GPG to encrypt or decrypt data',
defaults: {
name: 'GPG',
},
inputs: ['main'],
outputs: ['main'],
credentials: [
{
name: 'gpgKeyApi',
required: true,
},
],
properties: [
{
displayName: 'Operation',
name: 'operation',
type: 'options',
noDataExpression: true,
options: [
{
name: 'Encrypt',
value: 'encrypt',
},
{
name: 'Decrypt',
value: 'decrypt',
},
],
default: 'encrypt',
description: 'Which operation to use?',
},
{
displayName: 'Type',
name: 'type',
type: 'options',
options: [
{
name: 'File',
value: 'file',
},
{
name: 'String',
value: 'string',
},
],
default: 'file',
},
{
displayName: 'Text',
name: 'text',
type: 'string',
default: '',
displayOptions: {
show: {
type: ['string'],
},
},
},
{
displayName: 'Binary Property',
name: 'binaryPropertyName',
type: 'string',
default: 'data',
displayOptions: {
show: {
type: ['file'],
},
},
},
{
displayName: 'Output Property',
name: 'outputBinaryPropertyName',
type: 'string',
default: '',
displayOptions: {
show: {
type: ['file'],
},
},
},
{
displayName: 'Add Additional Properties',
name: 'addAdditionalProperties',
type: 'boolean',
default: false,
displayOptions: {
show: {
type: ['string'],
},
},
},
{
displayName: 'Additional Properties',
name: 'additionalProperties',
type: 'json',
default: '',
description: 'Any data you wish to add to the returned object',
displayOptions: {
show: {
type: ['string'],
addAdditionalProperties: [true],
},
},
},
],
};
}
async execute() {
const items = this.getInputData();
const returnData = [];
const operation = this.getNodeParameter('operation', 0);
const credentials = await this.getCredentials('gpgKeyApi');
let responseData;
for (let i = 0; i < items.length; i++) {
const dataType = this.getNodeParameter('type', i);
try {
if (operation === 'encrypt') {
const publicKey = await openpgp.readKey({ armoredKey: credentials.key });
if (dataType === 'string') {
const addAdditionalProperties = this.getNodeParameter('addAdditionalProperties', i);
const additionalProperties = this.getNodeParameter('additionalProperties', i);
const data = this.getNodeParameter('text', i);
const encrypted = await openpgp.encrypt({
message: await openpgp.createMessage({ text: data }),
encryptionKeys: publicKey,
});
responseData = addAdditionalProperties
? [
{
additionalProperties,
encrypted,
},
]
: [
{
encrypted,
},
];
}
if (dataType === 'file') {
const binaryPropertyName = this.getNodeParameter('binaryPropertyName', i);
const outputBinaryPropertyName = this.getNodeParameter('outputBinaryPropertyName', i, 'encrypted');
const binaryData = this.helpers.assertBinaryData(i, binaryPropertyName);
let pgpData;
if (binaryData.id) {
pgpData = await this.helpers.getBinaryStream(binaryData.id);
}
else {
pgpData = Buffer.from(binaryData.data, n8n_workflow_1.BINARY_ENCODING);
}
const encrypted = await openpgp.encrypt({
message: await openpgp.createMessage({ binary: pgpData }),
encryptionKeys: publicKey,
format: 'binary',
});
const buffer = Buffer.from(encrypted);
items[i].binary[outputBinaryPropertyName] = await this.helpers.prepareBinaryData(buffer);
items[i].binary[outputBinaryPropertyName].fileName = `${binaryData.fileName}.gpg`;
items[i].binary[outputBinaryPropertyName].fileExtension = 'gpg';
items[i].binary[outputBinaryPropertyName].mimeType = 'application/pgp-encrypted';
responseData = this.helpers.constructExecutionMetaData(this.helpers.returnJsonArray(items[i]), { itemData: { item: i } });
}
}
if (operation === 'decrypt') {
const privateKey = await openpgp.decryptKey({
privateKey: await openpgp.readPrivateKey({ armoredKey: credentials.key }),
passphrase: credentials.passphrase,
});
if (dataType === 'string') {
const addAdditionalProperties = this.getNodeParameter('addAdditionalProperties', i);
const additionalProperties = this.getNodeParameter('additionalProperties', i);
const message = await openpgp.readMessage({
armoredMessage: this.getNodeParameter('text', i),
});
const { data: decrypted } = await openpgp.decrypt({
message,
decryptionKeys: privateKey,
config: { allowInsecureDecryptionWithSigningKeys: true },
});
responseData = addAdditionalProperties
? [{ additionalProperties, decrypted }]
: [{ decrypted }];
}
if (dataType === 'file') {
const binaryPropertyName = this.getNodeParameter('binaryPropertyName', i);
const outputBinaryPropertyName = this.getNodeParameter('outputBinaryPropertyName', i, 'decrypted');
const binaryData = this.helpers.assertBinaryData(i, binaryPropertyName);
let pgpData;
if (binaryData.id) {
pgpData = await this.helpers.getBinaryStream(binaryData.id);
}
else {
pgpData = Buffer.from(binaryData.data, n8n_workflow_1.BINARY_ENCODING);
}
const encryptedMessage = await openpgp.readMessage({
binaryMessage: pgpData,
});
const { data: decrypted } = await openpgp.decrypt({
message: encryptedMessage,
decryptionKeys: privateKey,
format: 'binary',
config: { allowInsecureDecryptionWithSigningKeys: true },
});
const buffer = Buffer.from(decrypted);
items[i].binary[outputBinaryPropertyName] = await this.helpers.prepareBinaryData(buffer);
items[i].binary[outputBinaryPropertyName].fileName = `${binaryData.fileName}`;
responseData = this.helpers.constructExecutionMetaData(this.helpers.returnJsonArray(items[i]), { itemData: { item: i } });
}
}
const executionData = this.helpers.constructExecutionMetaData(this.helpers.returnJsonArray(responseData), { itemData: { item: i } });
returnData.push(...executionData);
}
catch (error) {
if (this.continueOnFail()) {
const executionErrorData = this.helpers.constructExecutionMetaData(this.helpers.returnJsonArray({ error: error.message }), { itemData: { item: i } });
returnData.push(...executionErrorData);
continue;
}
throw error;
}
}
return this.prepareOutputData(returnData);
}
}
exports.Gpg = Gpg;
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