whstorage/src/whstorage.js

whSotorage is a way to encrypt localSotage

const sjcl = require('../deps/sjcl')

if(typeof sjcl === 'undefined') {
    throw new Error("SJCL Encrypter lib is required!!! Download at: http://bitwiseshiftleft.github.io/sjcl/sjcl.js")
}

const whStorage = {};

whStorage.getPrimary = function() {
    var val = JSON.parse(localStorage.getItem('whs_data'))
    return val
};

whStorage.options = {
    key: (localStorage.length) ? whStorage.getPrimary().primary : '',
    prefix: (localStorage.length) ? whStorage.getPrimary().secondary : ''
};

whStorage.set = function(section, item) {
    var data = whStorage.encrypte(whStorage.getOptions().key, JSON.stringify(item));
    return localStorage.setItem(whStorage.defineSection(section), data);
};

whStorage.defineSection = function(section) {
    return whStorage.getOptions().prefix.concat(section)
};

whStorage.get = function(item){
    return JSON.parse(whStorage.decrypte(whStorage.getOptions().key, localStorage.getItem(whStorage.defineSection(item))))
};

whStorage.claer = function() {localStorage.clear()};

whStorage.init = function(options) {

    this.key = options.key
    this.prefix = options.prefix

    if(this.key === undefined){
        throw new Error('whStorageErr: Crypting key not found!')
    }

    const data = {
        primary: this.key,
        secondary: this.prefix
    }

    if(options.key !== undefined)
        whStorage.options.key = this.key

    if(options.prefix !== undefined)
        whStorage.options.prefix = this.prefix

    localStorage.setItem('whs_data', JSON.stringify(data));
};

whStorage.getOptions = function(){
    if(whStorage.options.prefix !== undefined || whStorage.options.prefix !== null)
        return whStorage.options
    return whStorage.options.key
};

whStorage.encrypte = function(password, data){
    if(password !== undefined)
        return sjcl.encrypt(password, data);
};

whStorage.decrypte = function(password, encryptedData){
    return sjcl.decrypt(password, encryptedData);
};


module.exports = whStorage;