{"id":8895,"date":"2019-12-29T15:40:23","date_gmt":"2019-12-29T06:40:23","guid":{"rendered":"http:\/\/www.code-magagine.com\/?p=8895"},"modified":"2023-05-27T22:50:36","modified_gmt":"2023-05-27T13:50:36","slug":"%e3%80%90ruby-on-rails%e3%80%91%e3%80%8cbcrypt%e3%80%8d%e3%81%ab%e3%82%88%e3%82%8b%e3%83%ad%e3%82%b0%e3%82%a4%e3%83%b3%e6%a9%9f%e8%83%bd%e3%81%ae%e5%ae%9f%e8%a3%85","status":"publish","type":"post","link":"http:\/\/www.code-magagine.com\/?p=8895","title":{"rendered":"\u3010Ruby on Rails\u3011\u300cbcrypt\u300d\u306b\u3088\u308b\u30ed\u30b0\u30a4\u30f3\u6a5f\u80fd\u306e\u5b9f\u88c5"},"content":{"rendered":"

\u30a4\u30e1\u30fc\u30b8\u56f3<\/h2>\n

\u30a4\u30e1\u30fc\u30b8\u3068\u3057\u3066\u306f\u4e0b\u8a18\u306e\u3088\u3046\u306a\u8a2d\u8a08\u3067\u4f5c\u3063\u3066\u3044\u304f\u306e\u304c\u57fa\u672c\u3068\u306a\u308b\u3067\u3057\u3087\u3046\u3002\u5b9f\u969b\u306fdevise\u3068\u3044\u3046Gem\u3092\u4f7f\u3046\u3053\u3068\u304c\u591a\u3044\u3068\u306f\u601d\u3044\u307e\u3059\u304c\u3001\u57fa\u672c\u306f\u540c\u3058\u3067\u3059\u3002<\/p>\n

\"\"<\/p>\n

bcrypt\u3068\u306f\uff1f<\/h2>\n

Rails\u306b\u304a\u3044\u3066\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u6697\u53f7\u5316\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3059\u308bGem\u306b\u306a\u308a\u307e\u3059\u3002\u306a\u304a\u3001Rails\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u305f\u969b\u306bGemfile\u306b\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u30b3\u30e1\u30f3\u30c8\u30a2\u30a6\u30c8\u3057\u3066\u5165\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

Gem\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/h2>\n

Gemfile\u306b\u4e0b\u8a18\u306e\u3088\u3046\u306bbcrypt\u3068\u3044\u3046gem\u304c\u30b3\u30e1\u30f3\u30c8\u30a2\u30a6\u30c8\u3055\u308c\u3066\u5165\u3063\u3066\u3044\u308b\u306e\u3067\u30b3\u30e1\u30f3\u30c8\u3092\u524a\u9664\u3057\u307e\u3059\u3002<\/p>\n

# gem 'bcrypt', '~> 3.1.7'\u3000\u2605\u30b3\u30e1\u30f3\u30c8\u3092\u524a\u9664\u3059\u308b\u3002<\/pre>\n
bundle\u3057\u307e\u3059\u3002<\/p>\n
bundle<\/pre>\n
\u30e6\u30fc\u30b6\u30fc\u30c6\u30fc\u30d6\u30eb\u306e\u4f5c\u6210<\/h2>\n
\u4e0b\u8a18\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u30e6\u30fc\u30b6\u30fc\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n
rails g model user name:string password_digest:string<\/pre>\n
password_digest:string<\/h3>\n
Rails\u3067\u7528\u610f\u3055\u308c\u3066\u3044\u308bhas_secure_password\u30e1\u30bd\u30c3\u30c9<\/strong><\/span>\u306e\u6a5f\u80fd\u3067\u4f7f\u7528\u3067\u304d\u308b\u3082\u306e\u3067\u3001\u6697\u53f7\u5316\u3057\u305f\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u4fdd\u5b58\u3057\u3066\u304a\u304f\u30ab\u30e9\u30e0\u3067\u3053\u306e\u540d\u524d\u306f\u56fa\u5b9a\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
has_secure_password\u30e1\u30bd\u30c3\u30c9<\/strong><\/span><\/h4>\n
Rails\u306e\u30e2\u30c7\u30eb\u5185\u306b\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u5b9a\u7fa9\u3057\u3066\u304a\u304f\u3053\u3068\u3067\u300cpassword_digest\u300d\u3068\u8a00\u3046\u30ab\u30e9\u30e0\u3092\u7528\u610f\u3057\u3066\u304a\u3051\u3070\u305d\u3053\u306b\u81ea\u52d5\u3067\u304d\u306b\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u4fdd\u5b58\u3057\u3066\u6697\u53f7\u5316\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u30bb\u30c3\u30b7\u30e7\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306e\u4f5c\u6210<\/h2>\n
Rails\u3067\u306f\u30ed\u30b0\u30a4\u30f3\u3092\u3059\u308b\u3053\u3068\u306f\u30a4\u30b3\u30fc\u30eb\u300c\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u5f35\u308b\u3053\u3068\u300d\u3068\u6349\u3048\u308b\u306e\u3067SessionController<\/strong><\/span>\u3068\u3044\u3046\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u304c\u4f5c\u6210\u3055\u308c\u308b\u5834\u5408\u304c\u591a\u3044\u3067\u3059\u3002\uff08\u306a\u304a\u3001\u3053\u3053\u3067\u3044\u3046\u30bb\u30c3\u30b7\u30e7\u30f3\u306f\u3001Web\u958b\u767a\u3067\u3088\u304f\u4f7f\u308f\u308c\u308b\u30b5\u30fc\u30d0\u3067\u60c5\u5831\u3092\u30e1\u30e2\u30ea\u3067\u4fdd\u7ba1\u3059\u308b\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u3053\u3068\u3067\u306f\u306a\u304f\u3001\u30ea\u30bd\u30fc\u30b9\u3068\u3057\u3066\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u3067\u300cWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3068\u306e\u3084\u308a\u53d6\u308a\u300d<\/strong><\/span>\u3068\u3044\u3046\u306e\u304c\u6b63\u3057\u3044\u610f\u5473\u306e\u3088\u3046\u3067\u3059\u3002\uff09<\/p>\n
\u30ed\u30b0\u30a4\u30f3\u30ed\u30b0\u30a2\u30a6\u30c8\u6642\u306e\u51e6\u7406\uff08\u30bb\u30c3\u30b7\u30e7\u30f3\u60c5\u5831\u306e\u4f5c\u6210\u3084\u524a\u9664\u7b49\uff09\u3092\u884c\u3046\u30bb\u30c3\u30b7\u30e7\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n
rails g controller sessions create destroy --skip-template-engine<\/pre>\n
--skip-template-engine\u30aa\u30d7\u30b7\u30e7\u30f3<\/h3>\n
\u30bb\u30c3\u30b7\u30e7\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306f\u3042\u304f\u307e\u3067\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u4f5c\u6210\u3084\u524a\u9664\u3092\u884c\u3046\u305f\u3081\u3053\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u6307\u5b9a\u3057\u3066view\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n
\u30db\u30fc\u30e0\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306e\u4f5c\u6210<\/h2>\n
\u30ed\u30b0\u30a4\u30f3\u306e\u30c8\u30c3\u30d7\u30da\u30fc\u30b8\u3067\u3042\u308b\u30db\u30fc\u30e0\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n
rails g controller home index<\/pre>\n
\u30e6\u30fc\u30b6\u30fc\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306e\u4f5c\u6210<\/h2>\n
\u30e6\u30fc\u30b6\u30fc\u767b\u9332\u6a5f\u80fd\u3067\u3042\u308b\u30e6\u30fc\u30b6\u30fc\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n
rails g controller users new create me<\/pre>\n
\u30e6\u30fc\u30b6\u30fc\u30e2\u30c7\u30eb\u306bhas_secure_password\u3092\u8a2d\u5b9a<\/h2>\n
class User < ApplicationRecord\r\n  has_secure_password \u2605\u8a18\u8ff0\r\nend<\/pre>\n
has_secure_password\u3092\u8a18\u8ff0\u3059\u308b\u3053\u3068\u3067User\u30e2\u30c7\u30eb\u306bpassword\u5c5e\u6027\u3068password_confirmation\u5c5e\u6027\u304c\u8ffd\u52a0<\/strong><\/span>\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u30e6\u30fc\u30b6\u30fc\u767b\u9332\u30d5\u30a9\u30fc\u30e0\u3067\u3088\u304f\u3042\u308b\u300c\u30d1\u30b9\u30ef\u30fc\u30c9\u300d\u3068\u300c\u78ba\u8a8d\u7528\u30d1\u30b9\u30ef\u30fc\u30c9\u300d\u3092\u5165\u529b\u3057\u3066\u3082\u3089\u3044\u4e8c\u3064\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u4e00\u81f4\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u8981\u6c42\u3059\u308b\u7269<\/strong><\/span>\u3067\u3059\u3002\uff08\u30e2\u30c7\u30eb\u306b\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u304c\u81ea\u52d5\u3067\u8ffd\u52a0\u3055\u308c\u307e\u3059\u3002\uff09save\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u305b\u3070\u300cpassword_digest\u300d\u3068\u3044\u3046\u30ab\u30e9\u30e0\u306b\u6697\u53f7\u5316\u3055\u308c\u305f\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u4fdd\u5b58\u3055\u308c\u308b\u52d5\u4f5c\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u306a\u304a\u3001\u5b9f\u969b\u306bDB\u306b\u4fdd\u5b58\u3055\u308c\u308b\u306e\u306f\u6697\u53f7\u5316\u3055\u308c\u305f\u30d1\u30b9\u30ef\u30fc\u30c9(password_digest)<\/strong><\/span>\u3060\u3051\u3067\u3001password\u3084password_confirmation\u7b49\u306e\u30ab\u30e9\u30e0\u306f\u5b9f\u969b\u306eDB\u306b\u306f\u5b58\u5728\u3057\u307e\u305b\u3093\u3002<\/strong><\/span><\/p>\n
has_secure_password\u3067\u3067\u304d\u308b\u3053\u3068\u4e00\u89a7<\/h3>\n
    \n
  • password\u3092\u81ea\u52d5\u3067\u6697\u53f7\u5316\u3059\u308b\u3002<\/li>\n
  • password_confirmation\u5c5e\u6027\u304c\u81ea\u52d5\u3067\u8ffd\u52a0\u3055\u308c\u3001\u4e00\u81f4\u78ba\u8a8d\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u81ea\u52d5\u3067\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/li>\n
  • authentication\u30e1\u30bd\u30c3\u30c9\u3067\u8a8d\u8a3c\u30c1\u30a7\u30c3\u30af\u3092\u3067\u304d\u307e\u3059\u3002<\/li>\n
  • \u6700\u5927\u6587\u5b57\u6570\u304c72\u6587\u5b57\u306e\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u304c\u8ffd\u52a0\u3055\u308c\u308b\u3002<\/li>\n
  • \u300cUser.create\u300d\u30b3\u30de\u30f3\u30c9\u3067\u30d1\u30b9\u30ef\u30fc\u30c9\u5165\u529b\u5fc5\u9808\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\u3092\u8ffd\u52a0\u3057\u3066\u304f\u308c\u308b\u3002\uff08User.update\u306f\u8ffd\u52a0\u3055\u308c\u306a\u3044\u306e\u3067\u6ce8\u610f\uff09<\/li>\n<\/ul>\n
    \n
    \u30e6\u30fc\u30b6\u30fc\u767b\u9332\u6a5f\u80fd<\/h2>\n
    \u30e6\u30fc\u30b6\u30fc\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306b\u4e0b\u8a18\u306e\u3088\u3046\u306a\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u5b9f\u88c5\u3057\u307e\u3059\u3002save\u30e1\u30bd\u30c3\u30c9\u3092\u5b9f\u884c\u3059\u308c\u3070\u81ea\u52d5\u7684\u306b\u6697\u53f7\u5316\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u4fdd\u5b58\u3055\u308c\u307e\u3059\u3002<\/p>\n
      def create\r\n    user = User.new(user_params)\r\n    if user.save\r\n      session[:user_id] = user.id\r\n      redirect_to \u767b\u9332\u6210\u529f\u5f8c\u306e\u30da\u30fc\u30b8\r\n    else\r\n      redirect_to \u767b\u9332\u5931\u6557\u5f8c\u306e\u30da\u30fc\u30b8, flash: {\r\n        user: user,\r\n        error_messages: user.errors.full_messages\r\n      }\r\n    end\r\n  end<\/pre>\n
    \u30ed\u30b0\u30a4\u30f3\u6642\u306f\u307e\u305a\u8a8d\u8a3c\u3092\u884c\u3044\u30bb\u30c3\u30b7\u30e7\u30f3\u306b\u30ed\u30b0\u30a4\u30f3\u4e2d\u306e\u30e6\u30fc\u30b6\u30fcID\u3092\u683c\u7d0d\u3059\u308b\u306e\u304c\u666e\u901a\u3067\u3059\u3002<\/p>\n
    session[:user_id] = \u30e6\u30fc\u30b6\u30fcID<\/pre>\n
    <\/h2>\n
    <\/h2>\n
    \u8a8d\u8a3c\u6a5f\u80fd<\/h2>\n
    \u30bb\u30c3\u30b7\u30e7\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306b\u4e0b\u8a18\u306e\u3088\u3046\u306a\u30e1\u30bd\u30c3\u30c9\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u30e2\u30c7\u30eb\u306eauthenticate\u30e1\u30bd\u30c3\u30c9<\/span><\/strong>\u306b\u3088\u308a\u30e6\u30fc\u30b6\u30fc\u540d\u3068\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u5408\u3063\u3066\u3044\u308b\u304b\u691c\u8a3c\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002\uff08\u3053\u308c\u3082\u3001has_secure_password\u30e1\u30bd\u30c3\u30c9\u3092\u30e2\u30c7\u30eb\u306b\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u30e2\u30c7\u30eb\u306b\u81ea\u52d5\u3067\u7d44\u307f\u8fbc\u307e\u308c\u308b\u30e1\u30bd\u30c3\u30c9\u306b\u306a\u308a\u307e\u3059\u3002\uff09<\/p>\n
      def create\r\n    user = User.find_by(name: params[:session][:name])\r\n    if user && user.authenticate(params[:session][:password])\r\n      session[:user_id] = user.id\r\n      redirect_to \u30ed\u30b0\u30a4\u30f3\u6210\u529f\u5f8c\u306e\u30da\u30fc\u30b8\r\n    else\r\n      render \u30ed\u30b0\u30a4\u30f3\u5931\u6557\u5f8c\u306e\u30da\u30fc\u30b8\r\n    end\r\n  end<\/pre>\n
    ApplicationController\u306e\u8a2d\u5b9a<\/h2>\n
    \u5168\u3066\u306e\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306b\u5171\u901a\u3059\u308b\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306e\u8a2d\u5b9a\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
    \n
    class ApplicationController < ActionController::Base\r\n  protect_from_forgery with: :exception\r\n  before_action :current_user\r\n\r\n  private\r\n\r\n  def current_user\r\n    return unless session[:user_id]\r\n    @current_user = User.find_by(id: session[:user_id])\r\n  end\r\nend<\/pre>\n
    \u52d5\u4f5c\u3068\u3057\u3066\u306f\u3001\u30ed\u30b0\u30a4\u30f3\u3057\u3066\u3044\u308b\u30e6\u30fc\u30b6\u30fc\u304c\u3044\u308c\u3070(\u30bb\u30c3\u30b7\u30e7\u30f3\u306b\u30c7\u30fc\u30bf\u304c\u5165\u3063\u3066\u3044\u308c\u3070\uff09\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u300c@current_user\u300d\u306b\u30ed\u30b0\u30a4\u30f3\u3057\u3066\u3044\u308b\u30e6\u30fc\u30b6\u30fc\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u3082\u3057\u8a72\u5f53\u3059\u308b\u30e6\u30fc\u30b6\u30fc\u304c\u3044\u306a\u3051\u308c\u3070\u30ed\u30b0\u30a4\u30f3\u3057\u3066\u3044\u306a\u3044\u7269\u3068\u3057\u3066nil\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n<\/div>\n
    \u30ed\u30b0\u30a4\u30f3\u5f8c\u306b\u30bb\u30c3\u30b7\u30e7\u30f3\u60c5\u5831\u3092\u53d6\u308a\u51fa\u3059\u69cb\u6587<\/h3>\n
    \u4e0b\u8a18\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u30bb\u30c3\u30b7\u30e7\u30f3\u304b\u3089\u30e6\u30fc\u30b6\u30fc\u60c5\u5831\u3092\u53d6\u308a\u51fa\u3057\u307e\u3059\u3002<\/p>\n
    \u30e6\u30fc\u30b6\u30fc\u30aa\u30d6\u30b8\u30a7\u30af\u30c8.find_by(id: session[user_id])<\/pre>\n
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    \u30ed\u30b0\u30a2\u30a6\u30c8\u6a5f\u80fd<\/h2>\n
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    session.delete(:user_id)<\/pre>\n","protected":false},"excerpt":{"rendered":"\u30a4\u30e1\u30fc\u30b8\u56f3 \u30a4\u30e1\u30fc\u30b8\u3068\u3057\u3066\u306f\u4e0b\u8a18\u306e\u3088\u3046\u306a\u8a2d\u8a08\u3067\u4f5c\u3063\u3066\u3044\u304f\u306e\u304c\u57fa\u672c\u3068\u306a\u308b\u3067\u3057\u3087\u3046\u3002\u5b9f\u969b\u306fdevise\u3068\u3044\u3046Gem\u3092\u4f7f\u3046\u3053\u3068\u304c\u591a\u3044\u3068\u306f\u601d\u3044\u307e\u3059\u304c\u3001\u57fa\u672c\u306f\u540c\u3058\u3067\u3059\u3002 bcrypt\u3068\u306f\uff1f Rails\u306b\u304a\u3044\u3066\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u6697\u53f7\u5316\u3059\u308b […]","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[36],"tags":[],"_links":{"self":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/8895"}],"collection":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8895"}],"version-history":[{"count":13,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/8895\/revisions"}],"predecessor-version":[{"id":20519,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/8895\/revisions\/20519"}],"wp:attachment":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8895"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8895"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8895"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}