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我正在关注Michael Hartl的Ruby on Rails教程,其中我已到达第8章。但是已经过身份验证?方法总是返回false。用于:remember_token的Cookie已正确保存。但是,当我通过BCrypt::Password.new(remember_digest).is_password?(remember_token)
比较数据库中的remember_digest时,它总会返回false。我正在使用Rails 4.2.5.1。这里是我的代码:BCrypt身份验证总是失败RAILS
controllers/sessions_controller.rb
class SessionsController < ApplicationController
def new
end
def create
user = User.find_by(email: params[:session][:email].downcase)
if user && user.authenticate(params[:session][:password])
log_in(user)
params[:session][:remember_me] == '1' ? remember(user) : forget(user)
redirect_to user
else
flash.now[:danger] = 'Invalid email/password combination'
render 'new'
end
end
def destroy
log_out if logged_in?
redirect_to root_url
end
end
models/user.rb
class User < ActiveRecord::Base
attr_accessor :remember_token
before_save { email.downcase! }
validates :name, presence: true, length: { maximum: 50 }
validates :email, presence: true, length: { maximum: 250 }, format: { with: /\A[\w+\-.][email protected][a-z\d\-]+(\.[a-z\d\-]+)*\.[a-z]+\z/i }, uniqueness: { case_sensitive: false }
validates :password, presence: true, length: { minimum: 6 }
has_secure_password
def self.digest(string)
cost = ActiveModel::SecurePassword.min_cost ? BCrypt::Engine::MIN_COST : BCrypt::Engine.cost
BCrypt::Password.create(string, cost: cost)
end
def User.new_token
SecureRandom.urlsafe_base64
end
def remember
self.remember_token = User.new_token
update_attribute(:remember_digest, User.digest(remember_token))
end
def authenticated?(remember_token)
return false if remember_digest.nil?
BCrypt::Password.new(remember_digest).is_password?(remember_token)
end
def forget
update_attribute(:remember_digest, nil)
end
end
helpers/sessions_helper.rb
module SessionsHelper
def log_in(user)
session[:user_id] = user.id
end
def log_out
forget(current_user)
session.delete(:user_id)
@current_user = nil
end
def remember(user)
user.remember
cookies.permanent.signed[:user_id] = user.id
cookies.permanent.signed[:remember_token] = user.remember_token
end
def forget(user)
user.forget
cookies.delete(:user_id)
cookies.delete(:remember_token)
end
def current_user
if (user_id = session[:user_id])
@current_user ||= User.find_by(id: user_id)
elsif (user_id = cookies.signed[:user_id])
user = User.find_by(id: user_id)
if user && user.authenticated?(cookies[:remember_token])
@current_user = user
puts "INSIDE"
end
end
end
def logged_in?
!current_user.nil?
end
end
在对第二行sessions_helper =>记(用户)为什么要分配'签署'to cookies.permanent.signed [:remember_token]'是不是只是** cookies.permanent [:remember_token] = user.remember_token ** – Hizqeel
非常感谢。这正是错误:) – CamelWriter
CamelWriter,很高兴帮助你。我已经更新了我的答案,请将其标记为已接受.. :) – Hizqeel