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前面的底线:当用户登录时,如何立即从 ldap 分配角色。

我正在使用 devise/cancan/deviseldap/rolify 对用户进行身份验证,然后希望分配一个角色。我很接近我认为让这个工作。我所拥有的是一个自定义初始化程序,只有当他们的 ldap 条目中有某个 memberOf 时,它才允许用户进入应用程序。

这要归功于该线程中人员的慷慨帮助:

在运行时使用 devise 和 devise_ldap_authenticable 检查组

所以现在是我分配角色的时候了,在网上搜索之后,我认为最好的方法可能是来自 devise 的 user.rb 中的 after_create。我在 config/initializer 中有这些 memberOf,但以后无法访问它们,就像user.rb我在以下尝试中描述的那样user.rb

 class User < ActiveRecord::Base
     after_create :assign_role
     ...
     ...
  private
  def assign_role
   puts "Assigning role!"
   member_of = self.ldap_param_value("memberOf")  #get array #i know self here is wrong
   member_of.each do |str|
   if str.include? 'Help Desk Admin'
      self.roles << "admin"
   end
   if str.include? 'Password Manager'
      self.roles << "password_manager"
   end
   if str.include? 'Security'
     self.roles << "security"
   end
   if str.include? 'Help Desk'
     self.roles << "help_desk"
   end
  end

 puts "roles assigned!"
 self.update
end

最大的问题(有很多我仍然是一个 ruby​​ noobie)是我调用了一个方法 ldap_param_value 并且我知道在 self 上调用它是不正确的,我让这段代码在 config/initializer/customdevise 中工作在同一行。 rb(这是为了我的前门全部检查):(我知道我需要实例化正确的对象才能访问上面的 ldap_param_value,但不确定它是什么)。我以为 self 是:Devise::LdapAdapter,但我在上面尝试过,它仍然没有工作:

Devise::LdapAdapter.ldap_param_value(...)

为了完整起见config/initializer/customedevise.rb

Devise::LdapAdapter::LdapConnect.class_eval do
  def user_group_test
  member_of = self.ldap_param_value("memberOf") #self works here...
  checkgroups member_of # your group test method  end

 def checkgroups(members)
  retVal = false
  members.each do |str|
    if str.include? 'Help Desk Admin' or str.include? 'Password Manager' or  str.include? 'Security' or str.include? 'Help Desk'
        retVal = true;
    end
  end
  return retVal
end
#    'CN=Password Manager'
#    'CN=Help Desk'
#    'CN=Help Desk Admin'
#    'CN=Security'


def authorized?
DeviseLdapAuthenticatable::Logger.send("Authorizing user #{dn}")
  if !user_group_test
    DeviseLdapAuthenticatable::Logger.send("Not authorized because custom authentication failed.")
    return false
  elsif !authenticated?
    DeviseLdapAuthenticatable::Logger.send("Not authorized because not authenticated.")
    return false
  elsif !in_required_groups?
    DeviseLdapAuthenticatable::Logger.send("Not authorized because not in required groups.")
    return false
  elsif !has_required_attribute?
    DeviseLdapAuthenticatable::Logger.send("Not authorized because does not have required attribute.")
    return false
  else
    return true
  end
 end
end

注意:上面的另一个缺陷是设计不知道身份验证失败的确切原因......我为此受苦并更改了devise.en.yml文件invalid:以包含更多信息:

en:
  devise:
   confirmations:
    confirmed: "Your account was successfully confirmed. You are now signed in."
    send_instructions: "You will receive an email with instructions about how to confirm your account in a few minutes."
    send_paranoid_instructions: "If your email address exists in our database, you will receive an email with instructions about how to confirm your account in a few minutes."
   failure:
     already_authenticated: "You are already signed in."
     inactive: "Your account was not activated yet."
     invalid: "Invalid email or password.  Or not a member of the correct group"

      ..etc...
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1 回答 1

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这很简单,

  1. 表 Permissions 将包含用户可以执行的所有模型和操作。
  2. 权限 HABTM 用户和用户 HABTM 权限
  3. 角色 has_many 用户,用户属于_to 角色
  4. 角色 HABTM 权限和权限 HABTM 角色
  5. 如果您建立上述所有关联并基于 current_user id,您可以检索用户的角色并检索他们的权限,这些权限将通过以下方法在 Ability 类中实例化,

         def initialize(user)   
            user.role.permissions.each do |permission|
              if permission.subject_class == "all"
                can permission.action.to_sym, permission.subject_class.to_sym
              else
                can permission.action.to_sym, permission.subject_class.constantize
            end
          end
         end
    

这个链接显示了如何做到这一点,

http://blog.joshsoftware.com/2012/10/23/dynamic-roles-and-permissions-using-cancan/

于 2013-07-11T16:58:45.580 回答