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def decrypt_cookie(cookie)
  cookie = CGI.unescape(cookie)
  data, iv, auth_tag = cookie.split("--").map { |v| Base64.strict_decode64(v) }
  raise InvalidMessage if (auth_tag.nil? || auth_tag.bytes.length != 16)

  cipher = OpenSSL::Cipher.new("aes-256-gcm")
  secret = OpenSSL::PKCS5.pbkdf2_hmac(
    Rails.application.secret_key_base,
    Rails.configuration.action_dispatch.authenticated_encrypted_cookie_salt,
    1000,

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bundle binstubs bundler --force

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INSTALL basic Requirements

Pertama Install Node

curl -sL https://deb.nodesource.com/setup_lts.x | sudo -E bash -

Kedua Install Yarn

curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -

echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list

Ketiga Install Redis

sudo add-apt-repository ppa:chris-lea/redis-server

Install packages

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##
# You should look at the following URL's in order to grasp a solid understanding
# of Nginx configuration files in order to fully unleash the power of Nginx.
# https://www.nginx.com/resources/wiki/start/
# https://www.nginx.com/resources/wiki/start/topics/tutorials/config_pitfalls/
# https://wiki.debian.org/Nginx/DirectoryStructure
#
# In most cases, administrators will remove this file from sites-enabled/ and
# leave it as reference inside of sites-available where it will continue to be
# updated by the nginx packaging team.

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#Simple Authentication with Bcrypt

This tutorial is for adding authentication to a vanilla Ruby on Rails app using Bcrypt and has_secure_password.

The steps below are based on Ryan Bates's approach from Railscast #250 Authentication from Scratch (revised).

You can see the final source code here: repo. I began with a stock rails app using rails new gif_vault

##Steps

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require 'cgi'
require 'active_support'

def verify_and_decrypt_session_cookie(cookie, secret_key_base = Rails.application.secret_key_base)
  config = Rails.application.config
  cookie = CGI::unescape(cookie)
  salt   = config.action_dispatch.authenticated_encrypted_cookie_salt
  encrypted_cookie_cipher = config.action_dispatch.encrypted_cookie_cipher || 'aes-256-gcm'
  # serializer = ActiveSupport::MessageEncryptor::NullSerializer # use this line if you don't know your serializer
  serializer = ActionDispatch::Cookies::JsonSerializer

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<div class="mb-5 p-4 bg-white shadow-sm">
  <h3>Non linear stepper</h3>
  <div id="stepper" class="bs-stepper">
    <div class="bs-stepper-header" role="tablist">
      <div class="step" data-target="#test-nl-1">
        <button type="button" class="step-trigger" role="tab" id="steppertrigger1" aria-controls="test-nl-1">
          <span class="bs-stepper-circle">
            <span class="fas fa-user" aria-hidden="true"></span>
          </span>
          <span class="bs-stepper-label">Name</span>

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{
    "files.autoSave": "off",
    "window.titleBarStyle": "custom",
    "window.menuBarVisibility": "classic",
    "[dart]": {
        "editor.formatOnSave": true,
        "editor.formatOnType": true,
        "editor.rulers": [
            80
        ],

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class ApiController < ApplicationController
  # define which model will act as token authenticatable
  acts_as_token_authentication_handler_for Login
  
  # Prevent CSRF attacks by raising an exception.
  # For APIs, you may want to use :null_session instead.
  protect_from_forgery with: :null_session

  respond_to :json
  skip_before_filter :verify_authenticity_token, if: :json_request?

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title