ormar Adapter for PyCasbin

Repo

GitHub

PyPI

ormar Adapter is the ormar adapter for PyCasbin. With this library, Casbin can load policy from ormar supported database or save policy to it.

Based on Officially Supported Databases, The current supported databases are:

• PostgreSQL
• MySQL
• SQLite

Installation

pip install ormar_casbin_adapter

or

poetry add ormar-casbin-adapter

Simple Example

import casbin
import databases
import ormar
from ormar_casbin_adapter import DatabasesAdapter
import sqlalchemy

database = Database("sqlite://", force_rollback=True)
metadata = sqlalchemy.MetaData()


class CasbinRule(ormar.Model):
    class Meta:
        database = database
        metadata = metadata
        tablename = "casbin_rules"

    id: int = ormar.Integer(primary_key=True)
    ptype: str = ormar.String(max_length=255)
    v0: str = ormar.String(max_length=255)
    v1: str = ormar.String(max_length=255)
    v2: str = ormar.String(max_length=255, nullable=True)
    v3: str = ormar.String(max_length=255, nullable=True)
    v4: str = ormar.String(max_length=255, nullable=True)
    v5: str = ormar.String(max_length=255, nullable=True)


adapter = DatabasesAdapter(model=CasbinRule)

e = casbin.Enforcer("path/to/model.conf", adapter, True)

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):
    # permit alice to read data1ormar_casbin_adapter
    pass
else:
    # deny the request, show an error
    pass

Getting Help

• PyCasbin

License

This project is licensed under the Apache 2.0 license.