lightning/lnd_methods/unauthenticated/change_password.js

Lightning Network client library

const asyncAuto = require('async/auto');
const {returnResult} = require('asyncjs-util');

const {isLnd} = require('./../../lnd_requests');

const method = 'changePassword';
const type = 'unlocker';
const utf8AsBuffer = utf8 => Buffer.from(utf8, 'utf8');

/** Change wallet password

  Requires locked LND and unauthenticated LND connection

  {
    current_password: <Current Password String>
    lnd: <Unauthenticated LND API Object>
    new_password: <New Password String>
  }

  @returns via cbk or Promise
*/
module.exports = (args, cbk) => {
  return new Promise((resolve, reject) => {
    return asyncAuto({
      // Check arguments
      validate: cbk => {
        if (!args.current_password) {
          return cbk([400, 'ExpectedCurrentPasswordToChangePassword']);
        }

        if (!isLnd({method, type, lnd: args.lnd})) {
          return cbk([400, 'ExpectedUnauthenticatedLndToChangePassword']);
        }

        if (!args.new_password) {
          return cbk([400, 'ExpectedNewPasswordForChangePasswordRequest']);
        }

        return cbk();
      },

      // Use the old password to change to the new password
      changePassword: ['validate', ({}, cbk) => {
        return args.lnd[type][method]({
          current_password: utf8AsBuffer(args.current_password),
          new_password: utf8AsBuffer(args.new_password),
        },
        err => {
          if (!!err) {
            return cbk([503, 'FailedToChangeLndPassword', {err}]);
          }

          return cbk();
        });
      }],
    },
    returnResult({reject, resolve}, cbk));
  });
};