secure-timed-storage/dist/secure-timed-storage.js

Secure timed storage library for encrypting and managing data in localStorage with expiry

import s from "crypto-js";
function E({ encryptionKey: c }) {
  const a = !!c, u = (t, e, r = null) => {
    try {
      const o = r !== null ? Date.now() + r * 36e5 : null, n = a ? f({ value: e, expiry: o }) : JSON.stringify({ value: e, expiry: o });
      localStorage.setItem(t, n);
    } catch (o) {
      throw console.error("Failed to set item", o), new Error("Failed to set item");
    }
  }, l = (t) => {
    const e = localStorage.getItem(t);
    if (!e)
      return null;
    try {
      const r = a ? g(e) : JSON.parse(e);
      return r.expiry && Date.now() > r.expiry ? (localStorage.removeItem(t), null) : r.value;
    } catch (r) {
      return console.error("Failed to get item", r), null;
    }
  }, i = (t) => {
    localStorage.removeItem(t);
  }, y = (t) => {
    const e = localStorage.getItem(t);
    if (!e)
      return null;
    try {
      return (a ? g(e) : JSON.parse(e)).expiry;
    } catch (r) {
      return console.error("Failed to get expiry", r), null;
    }
  }, p = () => {
    const t = Object.keys(localStorage).reduce((e, r) => {
      const o = localStorage.getItem(r);
      return o ? e + r.length + o.length : e;
    }, 0);
    return { usedBytes: t, remainingBytes: 5 * 1024 * 1024 - t };
  }, d = () => {
    localStorage.clear();
  }, S = () => {
    Object.keys(localStorage).forEach((t) => {
      const e = l(t);
      e != null && e.expiry && Date.now() > e.expiry && i(t);
    });
  }, m = (t) => {
    const e = [];
    for (let r = 0; r < localStorage.length; r++) {
      const o = localStorage.key(r);
      if (o) {
        const n = l(o);
        n && t(n) && e.push(n);
      }
    }
    return e;
  }, f = (t) => {
    try {
      return s.AES.encrypt(JSON.stringify(t), c).toString();
    } catch (e) {
      throw console.error("Encryption failed", e), new Error("Encryption failed");
    }
  }, g = (t) => {
    try {
      const e = s.AES.decrypt(t, c);
      return JSON.parse(e.toString(s.enc.Utf8));
    } catch (e) {
      throw console.error("Decryption failed", e), new Error("Decryption failed");
    }
  };
  return {
    setItem: u,
    getItem: l,
    removeItem: i,
    getExpiry: y,
    getRemainingStorage: p,
    clearStorage: d,
    cleanUp: S,
    query: m
  };
}
export {
  E as createSecureTimedStorage
};