使用 Google OAuth2.0 设计和 Omniauth 为什么没有创建新用户？

Question

我在 Rails 5.2 演示应用程序中使用 Devise (4.7.1) 和 omniauth-google-oauth2 (0.8.0) 来处理第 3 方注册。我可以使用种子数据正确登录并创建新用户没问题。但是，当我尝试使用 "sign in with Google OAuth2.0" 按钮时，它不起作用。它将我路由回根，这是回调控制器操作的一部分。

我一直在网上查看有关 CSRF 故障和使用的无效凭据的各种指南。我已经解决了这些问题，但现在只剩下这个让我感到困惑的问题。我得到的错误是：

User Load (0.6ms)  SELECT  "users".* FROM "users" WHERE "users"."provider" = ? AND "users"."uid" = ? ORDER BY "users"."id" ASC LIMIT ?  [["provider", "google_oauth2"], ["uid", "106922203178875367517"], ["LIMIT", 1]]
  ↳ app/models/user.rb:21
   (0.1ms)  begin transaction
  ↳ app/models/user.rb:21
  User Exists (0.7ms)  SELECT  1 AS one FROM "users" WHERE "users"."email" = ? LIMIT ?  [["email", ""], ["LIMIT", 1]]
  ↳ app/models/user.rb:21
   (0.1ms)  rollback transaction

似乎创建新用户的操作开始了，但由于回调 uri 生成的参数哈希中没有电子邮件而停止了。

参数散列如下所示：

Parameters: {"state"=>"XXXXXXXXXXX", "code"=>"XXXXXXXXXXX", "scope"=>"email profile https://www.googleapis.com/auth/userinfo.email https://www.googleapis.com/auth/userinfo.profile openid", "authuser"=>"0", "prompt"=>"consent"}

我的用户模型如下所示：

class User < ApplicationRecord

  has_many :comments
  has_many :books, through: :comments

  validates :email, uniqueness: true
  # validates :first_name, presence: {message: "Please enter your first name"}
  # validates :last_name, presence: {message: "Please enter your surname"}
  validates :encrypted_password, presence: true


  # Include default devise modules. Others available are:
  # :confirmable, :lockable, :timeoutable, :trackable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :validatable, :omniauthable, :omniauth_providers => [:google_oauth2]


  def self.from_omniauth(auth)
  # Either create a User record or update it based on the provider (Google) and the UID  

      where(provider: auth.provider, uid: auth.uid).first_or_create do |user|
      user.token = auth.credentials.token
      user.expires = auth.credentials.expires
      user.expires_at = auth.credentials.expires_at
      user.refresh_token = auth.credentials.refresh_token
    end
  end
end

回调控制器如下所示：

class Users::OmniauthCallbacksController < Devise::OmniauthCallbacksController
  skip_before_action :verify_authenticity_token
    def google_oauth2
      @user = User.from_omniauth(request.env["omniauth.auth"])
      if @user.persisted?
        sign_in @user, :event => :authentication #this will throw if @user is not activated
        set_flash_message(:notice, :success, :kind => "Google") if is_navigational_format?
      else
        session["devise.google_data"] = request.env["omniauth.auth"]
      end
      redirect_to '/'
     end
  end

我将非常感谢对此的任何帮助/指导，因为我现在有点难过。

谢谢:)

Answer 1

从我看到的代码来看，您正在创建没有电子邮件的用户，但是您有此验证 validates :email, uniqueness: true 如果您尝试创建 2 个帐户，它将不起作用。

你能证实一下吗？ User.where(email: "").count 让我知道。我觉得如果大于0就不能注册了

要么删除电子邮件唯一性验证，要么尝试从身份验证参数中获取电子邮件。

您可以通过在回调控制器中打印错误日志进行调试

      if @user.persisted?
        sign_in @user, :event => :authentication #this will throw if @user is not activated
        set_flash_message(:notice, :success, :kind => "Google") if is_navigational_format?
      else
        Rails.logger.info(@user.errors.full_messages)
        session["devise.google_data"] = request.env["omniauth.auth"]
      end

使用 Google OAuth2.0 设计和 Omniauth 为什么没有创建新用户？

Devise and Omniauth using Google OAuth2.0 why is a new user not being created?

ruby

devise

ruby-on-rails-5