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PHP-Casbin is a powerful and efficient open-source access control library for PHP projects. It provides support for enforcing authorization based on various access control models.
Casbin | jCasbin | node-Casbin | PHP-Casbin |
production-ready | production-ready | production-ready | production-ready |
Require this package in the composer.json
of your project. This will download the package:
composer require casbin/casbin
require_once './vendor/autoload.php';
use Casbin\Enforcer;
$e = new Enforcer("path/to/model.conf", "path/to/policy.csv");
$sub = "alice"; // the user that wants to access a resource.
$obj = "data1"; // the resource that is going to be accessed.
$act = "read"; // the operation that the user performs on the resource.
if ($e->enforce($sub, $obj, $act) === true) {
// permit alice to read data1
} else {
// deny the request, show an error
}
write-article
, read-log
. It doesn't control the access to a specific article or log.resource.Owner
can be used to get the attribute for a resource./res/*
, /res/:id
and HTTP methods like GET
, POST
, PUT
, DELETE
.In php-casbin, an access control model is abstracted into a CONF file based on the PERM metamodel (Policy, Effect, Request, Matchers). So switching or upgrading the authorization mechanism for a project is just as simple as modifying a configuration. You can customize your own access control model by combining the available models. For example, you can get RBAC roles and ABAC attributes together inside one model and share one set of policy rules.
The most basic and simplest model in php-casbin is ACL. ACL's model CONF is:
# Request definition
[request_definition]
r = sub, obj, act
# Policy definition
[policy_definition]
p = sub, obj, act
# Policy effect
[policy_effect]
e = some(where (p.eft == allow))
# Matchers
[matchers]
m = r.sub == p.sub && r.obj == p.obj && r.act == p.act
An example policy for ACL model is like:
p, alice, data1, read
p, bob, data2, write
It means:
What php-casbin does:
{subject, object, action}
form or a customized form as you defined, both allow and deny authorizations are supported.root
or administrator
. A superuser can do anything without explict permissions.keyMatch
can map a resource key /foo/bar
to the pattern /foo*
.What php-casbin does NOT do:
username
and password
when a user logs in)https://casbin.org/docs/en/overview
You can also use the online editor (http://casbin.org/editor/) to write your php-casbin model and policy in your web browser. It provides functionality such as syntax highlighting
and code completion
, just like an IDE for a programming language.
https://casbin.org/docs/en/tutorials
php-casbin provides two sets of APIs to manage permissions:
We also provide a web-based UI for model management and policy management:
In php-casbin, the policy storage is implemented as an adapter (aka middleware for php-casbin). To keep light-weight, we don't put adapter code in the main library (except the default file adapter). A complete list of php-casbin adapters is provided as below. Any 3rd-party contribution on a new adapter is welcomed, please inform us and I will put it in this list:)
Adapter | Type | Author | Description |
---|---|---|---|
File Adapter (built-in) | File | php-casbin | Persistence for .CSV (Comma-Separated Values) files |
Database Adapter | Database | php-casbin | MySQL, PostgreSQL, SQLite, Microsoft SQL Server are supported by Database Adapter |
For details of adapters, please refer to the documentation: https://casbin.org/docs/en/policy-storage
The role manager is used to manage the RBAC role hierarchy (user-role mapping) in php-casbin. A role manager can retrieve the role data from php-casbin policy rules or external sources such as LDAP, Okta, Auth0, Azure AD, etc. We support different implementations of a role manager. To keep light-weight, we don't put role manager code in the main library (except the default role manager). A complete list of php-casbin role managers is provided as below. Any 3rd-party contribution on a new role manager is welcomed, please inform us and I will put it in this list:)
Role manager | Author | Description |
---|---|---|
Default Role Manager (built-in) | php-casbin | Supports role hierarchy stored in php-casbin policy |
For developers: all role managers must implement the RoleManager interface. Default Role Manager can be used as a reference implementation.
Model | Model file | Policy file |
---|---|---|
ACL | basic_model.conf | basic_policy.csv |
ACL with superuser | basic_model_with_root.conf | basic_policy.csv |
ACL without users | basic_model_without_users.conf | basic_policy_without_users.csv |
ACL without resources | basic_model_without_resources.conf | basic_policy_without_resources.csv |
RBAC | rbac_model.conf | rbac_policy.csv |
RBAC with resource roles | rbac_model_with_resource_roles.conf | rbac_policy_with_resource_roles.csv |
RBAC with domains/tenants | rbac_model_with_domains.conf | rbac_policy_with_domains.csv |
ABAC | abac_model.conf | N/A |
RESTful | keymatch_model.conf | keymatch_policy.csv |
Deny-override | rbac_model_with_deny.conf | rbac_policy_with_deny.csv |
Priority | priority_model.conf | priority_policy.csv |
Laravel: The PHP framework for web artisans, via plugin: laravel-casbin
Yii PHP Framework: A fast, secure, and efficient PHP framework, via plugin: yii-casbin
ThinkPHP: The ThinkPHP framework, via plugin: think-casbin
This project is licensed under the Apache 2.0 license.
If you have any issues or feature requests, please contact us. PR is welcomed.
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