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Visão Geral

Introduction​

All users associated with a single Casdoor organization share access to the organization's applications. No entanto, pode haver casos em que você deseja restringir o acesso do usuário a certas aplicações ou recursos específicos dentro de uma aplicação. Nesses casos, você pode utilizar o recurso Permission fornecido pelo Casbin.

Understanding Casbin Concepts​

Before delving deeper into the topic, it is important to have a basic understanding of how Casbin works and its related concepts:

  • Model: Defines the structure of your permission policies and the criteria for matching requests against these policies and their outcomes. You can configure models in the Models page in Casdoor.
  • Policy: Describes the specific permission rules (who can access what resources with what actions). You configure policies in the Permissions page in Casdoor.
  • Adapter: An abstraction layer that shields Casbin's executor from the source of the Policy, allowing the storage of Policies in various locations like files or databases. Learn more about Adapters.
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Learn More About Casbin

Visit the Casbin documentation to learn more about access control models and patterns. You can also use the Casbin Online Editor to create and test Model and Policy files for your specific scenarios.

Configuring Permissions in Casdoor​

Where to Configure​

In the Casdoor Web UI, you'll work with two main pages:

  1. Models Page: Navigate to Models in the sidebar to add or edit Models for your organization.

    Model Edit Page

  2. Permissions Page: Navigate to Permissions in the sidebar to configure permission policies.

    Permission Edit Page

How Permissions Work​

Returning to the subject of permission configuration in Casdoor:

  1. Add a Model: First, create a Model for your organization in the Models page within the Casdoor Web UI.
  2. Configure a Policy: Then, add a Policy (permission rules) for your organization in the Permissions page.

O Editor Online do Casbin pode fornecer arquivos de Modelo e Política adaptados aos seus cenários de uso específicos. Você pode importar facilmente o arquivo de Modelo para o Casdoor através de sua Web UI para uso pelo Casbin integrado. For the Policy configuration (i.e., the Permissions page in the Casdoor Web UI), refer to the Permission Configuration guide for detailed instructions.

Using Permissions with Your Application​

Assim como sua aplicação precisa impor controle de permissão através do Casbin integrado do Casdoor, o próprio Casdoor utiliza seu próprio Modelo e Política para regular as permissões de acesso para as interfaces de API através do Casbin. Embora o Casdoor possa chamar o Casbin a partir do código interno, aplicações externas não podem.

Como solução, o Casdoor expõe uma API para aplicações externas chamarem o Casbin integrado. See the Exposed Casbin APIs documentation for definitions of these API interfaces and instructions on how to use them.

Account Item Permissions​

Casdoor also provides fine-grained permission control at the user account field level through the Edit Organization page:

  • View rule: Control who can view specific user account fields
  • Modify rule: Control who can modify specific user account fields

These rules can be set to:

  • Public: Everyone has permission
  • Self: Each user has their own permission
  • Admin: Only administrators have permission

Learn more in the Account Customization documentation.

Role-Based Access Control​

Casdoor supports role-based permissions where you can assign roles to users and configure permission policies for these roles. This allows you to manage permissions at the role level rather than individual user level.

Next Steps​

Vamos começar!