此问题是指this特定问题。
我将pundit用作我的授权gem,我希望用户X只能下载属于用户X的用户信息。现在,我以http://localhost:3000/download.csv作为链接来接收用户信息。但是,如果我登录到另一个用户(例如user / 2),则仍然可以输入url并下载user / 3数据。
我现在所拥有的:
user_policy.rb
class UserPolicy < ApplicationPolicy
def profile?
true
end
def download?
end
private
def user_or_admin
user.id == record.id || user.admin?
end
end
application_policy.rb
class ApplicationPolicy
attr_reader :user, :record
def initialize(user, record)
@user = user
@record = record
end
def index?
false
end
def show?
scope.where(:id => record.id).exists?
end
def create?
create?
end
def new?
create?
end
def update?
false
end
def edit?
update?
end
def destroy?
false
end
class Scope
attr_reader :user, :scope
def initialize(user, scope)
@user = user
@scope = scope
end
def resolve
scope.all
end
end
end
这是我的user_controller.rb#这不是users_controller,那是不同的视图
class UserController < ApplicationController
prepend_view_path(File.join(Rails.root, 'app/views/user/'))
layout 'application'
def index
end
def billing
end
def plan
end
def profile
@user = User.find(params[:id])
@user_posts = @user.posts.order('created_at DESC')
end
end
def download
@user = User.find(params[:id])
respond_to do |format|
format.html
format.csv { send_data @user.csv, filename: "userinfo-#{Date.today}.csv" }
end
end
def support
@user = User.find(params[:id])
@user_posts = @user.posts.order('created_at DESC')
end
def notifications
end
def show
@user = User.find(params[:id])
@posts = current_user.posts.order('created_at DESC')
@user_posts = @user.posts.order('created_at DESC')
end
更新:根据建议,我尝试在user_controller中实施新的下载操作,并尝试在我的视图中使用以下代码:
<p><%= link_to("Export data as CSV", download_path(@user, format: :csv), { :controller => :user, :action => :download }, class: "btn btn-success") %></p>
但这会引发以下错误:
“接收未知”操作-找不到UserController的“下载”操作
routes.rb
Rails.application.routes.draw do
get 'legal/privacy'
get :datenschutz, to: 'legal#terms_of_service'
devise_for :users, path_names: { sign_in: 'login', sign_out: 'logout', sign_up: 'registrieren', edit: 'bearbeiten' }, :controllers => { registrations: 'registrations' }
get '/users/mitteilungen/:id' => 'user#notifications'
get '/users/:id/artikel/', :to => 'user#support', :as => :artikel
get '/users/plan' => 'user#plan'
get '/users/billing' => 'user#billing'
get '/users/:id', :to => 'user#profile', :as => :user
get 'download', :to => 'user#download', :controller => :user, action: :download, :as => :download
resources :posts, path: :news do
resources :comments, path: :kommentare do
end
end
devise_scope :user do
resources :posts, path: :news do
resources :comments do
end
end
end
root to: "posts#index", as: :root
end
答案 0 :(得分:0)
您的条件不正确@user.id = user.id
。
user
是@user
。我认为您的意思是user.id = record.id
record
是您正在授权的实例,例如:
def show
@user = User.find(params[:id])
authorize @user
...
end
authorize @user
基本上是UserPolicy.new(@user, current_user).show?
顺便说一句,我不确定,但是我认为您可以安全地省略.id
:user == record
UPD。 我重新阅读了您的政策。 ApplicationPolicy通常如下所示:
class ApplicationPolicy
attr_reader :user, :record
def initialize(user, record)
@user = user
@record = record
end
end
您覆盖了构造函数。为什么?让它保持Pundit希望的样子
UPD2。我希望您的UserPolicy如下所示:
class UserPolicy < ApplicationPolicy
def profile? #this is the action I have the button in to export data
return true if user_or_admin?
end
private
def user_or_admin?
user.id == record.id || user.admin?
end
end
答案 1 :(得分:0)
我们对我的原始答案的评论讨论得太多了。我想澄清我的观点。
您写道:
我将pundit用作我的授权gem,我希望用户X只能下载属于用户X的用户数据。现在我以http://localhost:3000/download/x.csv作为链接来接收用户数据。但是,如果我登录到另一个用户,例如user /:id 2,我仍然可以输入URL并下载users / 3数据。
所以问题在于授权不起作用。我说的对吗?
之后,您写了:
更新:按照建议,我尝试在自己的手机中实施新的下载操作 user_controller并尝试在我看来使用此代码: ...
但这会引发以下错误: ...
因此,路由问题不在原始问题范围内,应在其他问题中解决。无论如何,您都可以签出this question。
所以。如果您的问题是授权-只需正确编写策略,然后在控制器中使用它们即可。这就是全部。