dropbox/src/utils.js

The Dropbox JavaScript SDK is a lightweight, promise based interface to the Dropbox v2 API that works in both nodejs and browser environments.

import { DEFAULT_API_DOMAIN, DEFAULT_DOMAIN, TEST_DOMAIN_MAPPINGS } from './constants';

function getSafeUnicode(c) {
  const unicode = `000${c.charCodeAt(0).toString(16)}`.slice(-4);
  return `\\u${unicode}`;
}

export const baseApiUrl = (subdomain, domain = DEFAULT_API_DOMAIN, domainDelimiter = '.') => {
  if (!domainDelimiter) {
    return `https://${domain}/2/`;
  }
  if (domain !== DEFAULT_API_DOMAIN && TEST_DOMAIN_MAPPINGS[subdomain] !== undefined) {
    subdomain = TEST_DOMAIN_MAPPINGS[subdomain];
    domainDelimiter = '-';
  }
  return `https://${subdomain}${domainDelimiter}${domain}/2/`;
};
export const OAuth2AuthorizationUrl = (domain = DEFAULT_DOMAIN) => {
  if (domain !== DEFAULT_DOMAIN) {
    domain = `meta-${domain}`;
  }
  return `https://${domain}/oauth2/authorize`;
};
export const OAuth2TokenUrl = (domain = DEFAULT_API_DOMAIN, domainDelimiter = '.') => {
  let subdomain = 'api';
  if (domain !== DEFAULT_API_DOMAIN) {
    subdomain = TEST_DOMAIN_MAPPINGS[subdomain];
    domainDelimiter = '-';
  }
  return `https://${subdomain}${domainDelimiter}${domain}/oauth2/token`;
};

// source https://www.dropboxforum.com/t5/API-support/HTTP-header-quot-Dropbox-API-Arg-quot-could-not-decode-input-as/m-p/173823/highlight/true#M6786
export function httpHeaderSafeJson(args) {
  return JSON.stringify(args).replace(/[\u007f-\uffff]/g, getSafeUnicode);
}

export function getTokenExpiresAtDate(expiresIn) {
  return new Date(Date.now() + (expiresIn * 1000));
}

/* global WorkerGlobalScope */
export function isWindowOrWorker() {
  return (
    (
      typeof WorkerGlobalScope !== 'undefined'
            && self instanceof WorkerGlobalScope // eslint-disable-line no-restricted-globals
    )
        || (
          typeof module === 'undefined'
            || typeof window !== 'undefined'
        )
  );
}

export function isBrowserEnv() {
  return typeof window !== 'undefined';
}

export function isWorkerEnv() {
  return typeof WorkerGlobalScope !== 'undefined' && self instanceof WorkerGlobalScope; // eslint-disable-line no-restricted-globals
}

export function createBrowserSafeString(toBeConverted) {
  const convertedString = toBeConverted.toString('base64')
    .replace(/\+/g, '-')
    .replace(/\//g, '_')
    .replace(/=/g, '');
  return convertedString;
}