├── .github ├── semantic.yml └── workflows │ └── build.yml ├── .gitignore ├── LICENSE ├── README.md ├── casbin_middleware ├── __init__.py ├── authz_model.conf ├── authz_policy.csv └── middleware.py ├── django_example ├── __init__.py ├── settings.py ├── urls.py └── wsgi.py ├── manage.py ├── pyproject.toml └── requirements.txt /.github/semantic.yml: -------------------------------------------------------------------------------- 1 | # Always validate the PR title AND all the commits 2 | titleAndCommits: true -------------------------------------------------------------------------------- /.github/workflows/build.yml: -------------------------------------------------------------------------------- 1 | name: build 2 | on: 3 | push: 4 | branches: [master] 5 | pull_request: 6 | branches: [master] 7 | 8 | jobs: 9 | lint: 10 | name: Run Linters 11 | runs-on: ubuntu-latest 12 | steps: 13 | - name: Checkout 14 | uses: actions/checkout@v2 15 | with: 16 | fetch-depth: 0 17 | 18 | - name: Super-Linter 19 | uses: github/super-linter@v4.9.2 20 | env: 21 | VALIDATE_ALL_CODEBASE: false 22 | VALIDATE_PYTHON_BLACK: true 23 | DEFAULT_BRANCH: master 24 | GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} 25 | LINTER_RULES_PATH: / 26 | PYTHON_BLACK_CONFIG_FILE: pyproject.toml -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Byte-compiled / optimized / DLL files 2 | __pycache__/ 3 | *.py[cod] 4 | *$py.class 5 | 6 | # C extensions 7 | *.so 8 | 9 | # Distribution / packaging 10 | .Python 11 | build/ 12 | develop-eggs/ 13 | dist/ 14 | downloads/ 15 | eggs/ 16 | .eggs/ 17 | lib/ 18 | lib64/ 19 | parts/ 20 | sdist/ 21 | var/ 22 | wheels/ 23 | *.egg-info/ 24 | .installed.cfg 25 | *.egg 26 | MANIFEST 27 | 28 | # PyInstaller 29 | # Usually these files are written by a python script from a template 30 | # before PyInstaller builds the exe, so as to inject date/other infos into it. 31 | *.manifest 32 | *.spec 33 | 34 | # Installer logs 35 | pip-log.txt 36 | pip-delete-this-directory.txt 37 | 38 | # Unit test / coverage reports 39 | htmlcov/ 40 | .tox/ 41 | .coverage 42 | .coverage.* 43 | .cache 44 | nosetests.xml 45 | coverage.xml 46 | *.cover 47 | .hypothesis/ 48 | .pytest_cache/ 49 | 50 | # Translations 51 | *.mo 52 | *.pot 53 | 54 | # Django stuff: 55 | *.log 56 | local_settings.py 57 | db.sqlite3 58 | 59 | # Flask stuff: 60 | instance/ 61 | .webassets-cache 62 | 63 | # Scrapy stuff: 64 | .scrapy 65 | 66 | # Sphinx documentation 67 | docs/_build/ 68 | 69 | # PyBuilder 70 | target/ 71 | 72 | # Jupyter Notebook 73 | .ipynb_checkpoints 74 | 75 | # pyenv 76 | .python-version 77 | 78 | # celery beat schedule file 79 | celerybeat-schedule 80 | 81 | # SageMath parsed files 82 | *.sage.py 83 | 84 | # Environments 85 | .env 86 | .venv 87 | env/ 88 | venv/ 89 | ENV/ 90 | env.bak/ 91 | venv.bak/ 92 | 93 | # Spyder project settings 94 | .spyderproject 95 | .spyproject 96 | 97 | # Rope project settings 98 | .ropeproject 99 | 100 | # mkdocs documentation 101 | /site 102 | 103 | # mypy 104 | .mypy_cache/ 105 | 106 | .idea/ 107 | *.iml -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright [yyyy] [name of copyright owner] 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # django-casbin 2 | 3 | [![Discord](https://img.shields.io/discord/1022748306096537660?logo=discord&label=discord&color=5865F2)](https://discord.gg/S5UjpzGZjN) 4 | 5 | **News**: 🔥🔥🔥 How to use it with `Django` ? Try [Django Authorization >>>](https://github.com/pycasbin/django-authorization), an authorization library for `Django` framework. 6 | 7 | django-casbin is an authorization middleware for [Django](https://www.djangoproject.com/), it's based on [PyCasbin](https://github.com/casbin/pycasbin). 8 | 9 | ## Installation 10 | 11 | ``` 12 | pip install casbin 13 | ``` 14 | 15 | ## Simple Example 16 | 17 | This repo is just a working Django app that shows the usage of django-casbin. To use it in your existing Django app, you need: 18 | 19 | - Add the middleware to your Django app's ``settings.py``: 20 | 21 | ```python 22 | MIDDLEWARE = [ 23 | 'django.middleware.security.SecurityMiddleware', 24 | 'django.contrib.sessions.middleware.SessionMiddleware', 25 | 'django.middleware.common.CommonMiddleware', 26 | 'django.middleware.csrf.CsrfViewMiddleware', 27 | 'django.contrib.auth.middleware.AuthenticationMiddleware', 28 | 'django.contrib.messages.middleware.MessageMiddleware', 29 | 'django.middleware.clickjacking.XFrameOptionsMiddleware', 30 | 'casbin_middleware.middleware.CasbinMiddleware', # Add this line, must after AuthenticationMiddleware. 31 | ] 32 | ``` 33 | 34 | - Copy ``casbin_middleware`` folder to your Django's top folder, modify ``casbin_middleware/middleware.py`` if you need: 35 | 36 | ```python 37 | import casbin 38 | 39 | def __init__(self, get_response): 40 | self.get_response = get_response 41 | # load the casbin model and policy from files. 42 | # change the 2nd arg to use a database. 43 | self.enforcer = casbin.Enforcer("casbin_middleware/authz_model.conf", "casbin_middleware/authz_policy.csv") 44 | 45 | def check_permission(self, request): 46 | # change the user, path, method as you need. 47 | user = request.user.username 48 | if request.user.is_anonymous: 49 | user = 'anonymous' 50 | path = request.path 51 | method = request.method 52 | return self.enforcer.enforce(user, path, method) 53 | ``` 54 | 55 | - The default policy ``authz_policy.csv`` is: 56 | 57 | ```csv 58 | p, anonymous, /, GET 59 | p, admin, *, * 60 | g, alice, admin 61 | ``` 62 | 63 | It means ``anonymous`` user can only access homepage ``/``. Admin users like alice can access any pages. Currently all accesses are regarded as ``anonymous``. Add your authentication to let a user log in. 64 | 65 | ## Documentation 66 | 67 | The authorization determines a request based on ``{subject, object, action}``, which means what ``subject`` can perform what ``action`` on what ``object``. In this plugin, the meanings are: 68 | 69 | 1. ``subject``: the logged-in user name 70 | 2. ``object``: the URL path for the web resource like "dataset1/item1" 71 | 3. ``action``: HTTP method like GET, POST, PUT, DELETE, or the high-level actions you defined like "read-file", "write-blog" 72 | 73 | For how to write authorization policy and other details, please refer to [the Casbin's documentation](https://casbin.org). 74 | 75 | ## Getting Help 76 | 77 | - [Casbin](https://casbin.org) 78 | 79 | ## License 80 | 81 | This project is under Apache 2.0 License. See the [LICENSE](LICENSE) file for the full license text. 82 | -------------------------------------------------------------------------------- /casbin_middleware/__init__.py: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pycasbin/django-casbin/ffaa7a2a79387a5c2b7c285a12e7026adee938de/casbin_middleware/__init__.py -------------------------------------------------------------------------------- /casbin_middleware/authz_model.conf: -------------------------------------------------------------------------------- 1 | [request_definition] 2 | r = sub, obj, act 3 | 4 | [policy_definition] 5 | p = sub, obj, act 6 | 7 | [role_definition] 8 | g = _, _ 9 | 10 | [policy_effect] 11 | e = some(where (p.eft == allow)) 12 | 13 | [matchers] 14 | m = (g(r.sub, p.sub) || p.sub == "*") && keyMatch(r.obj, p.obj) && (r.act == p.act || p.act == "*") -------------------------------------------------------------------------------- /casbin_middleware/authz_policy.csv: -------------------------------------------------------------------------------- 1 | p, anonymous, /, GET 2 | p, admin, *, * 3 | g, alice, admin -------------------------------------------------------------------------------- /casbin_middleware/middleware.py: -------------------------------------------------------------------------------- 1 | # Copyright 2019 The Casbin Authors. All Rights Reserved. 2 | # 3 | # Licensed under the Apache License, Version 2.0 (the "License"); 4 | # you may not use this file except in compliance with the License. 5 | # You may obtain a copy of the License at 6 | # 7 | # http://www.apache.org/licenses/LICENSE-2.0 8 | # 9 | # Unless required by applicable law or agreed to in writing, software 10 | # distributed under the License is distributed on an "AS IS" BASIS, 11 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 | # See the License for the specific language governing permissions and 13 | # limitations under the License. 14 | 15 | import casbin 16 | 17 | from django.core.exceptions import PermissionDenied 18 | 19 | 20 | class CasbinMiddleware: 21 | """ 22 | Casbin middleware. 23 | """ 24 | 25 | def __init__(self, get_response): 26 | self.get_response = get_response 27 | # Initialize the Casbin enforcer, executed only on once. 28 | self.enforcer = casbin.Enforcer("casbin_middleware/authz_model.conf", "casbin_middleware/authz_policy.csv") 29 | 30 | def __call__(self, request): 31 | # Check the permission for each request. 32 | if not self.check_permission(request): 33 | # Not authorized, return HTTP 403 error. 34 | self.require_permission() 35 | 36 | # Permission passed, go to next module. 37 | response = self.get_response(request) 38 | return response 39 | 40 | def check_permission(self, request): 41 | # Customize it based on your authentication method. 42 | user = request.user.username 43 | if request.user.is_anonymous: 44 | user = 'anonymous' 45 | path = request.path 46 | method = request.method 47 | return self.enforcer.enforce(user, path, method) 48 | 49 | def require_permission(self,): 50 | raise PermissionDenied 51 | -------------------------------------------------------------------------------- /django_example/__init__.py: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/pycasbin/django-casbin/ffaa7a2a79387a5c2b7c285a12e7026adee938de/django_example/__init__.py -------------------------------------------------------------------------------- /django_example/settings.py: -------------------------------------------------------------------------------- 1 | """ 2 | Django settings for django_example project. 3 | 4 | Generated by 'django-admin startproject' using Django 4.0.1. 5 | 6 | For more information on this file, see 7 | https://docs.djangoproject.com/en/4.0/topics/settings/ 8 | 9 | For the full list of settings and their values, see 10 | https://docs.djangoproject.com/en/4.0/ref/settings/ 11 | """ 12 | 13 | from pathlib import Path 14 | 15 | # Build paths inside the project like this: BASE_DIR / 'subdir'. 16 | BASE_DIR = Path(__file__).resolve().parent.parent 17 | 18 | 19 | # Quick-start development settings - unsuitable for production 20 | # See https://docs.djangoproject.com/en/4.0/howto/deployment/checklist/ 21 | 22 | # SECURITY WARNING: keep the secret key used in production secret! 23 | SECRET_KEY = 'django-insecure-5nh*_5n=4g^znmscg315mw1lzpuv=4=vj(pfd-7z7gql^6i#+%' 24 | 25 | # SECURITY WARNING: don't run with debug turned on in production! 26 | DEBUG = True 27 | 28 | ALLOWED_HOSTS = [] 29 | 30 | 31 | # Application definition 32 | 33 | INSTALLED_APPS = [ 34 | 'django.contrib.admin', 35 | 'django.contrib.auth', 36 | 'django.contrib.contenttypes', 37 | 'django.contrib.sessions', 38 | 'django.contrib.messages', 39 | 'django.contrib.staticfiles', 40 | ] 41 | 42 | MIDDLEWARE = [ 43 | 'django.middleware.security.SecurityMiddleware', 44 | 'django.contrib.sessions.middleware.SessionMiddleware', 45 | 'django.middleware.common.CommonMiddleware', 46 | 'django.middleware.csrf.CsrfViewMiddleware', 47 | 'django.contrib.auth.middleware.AuthenticationMiddleware', 48 | 'django.contrib.messages.middleware.MessageMiddleware', 49 | 'django.middleware.clickjacking.XFrameOptionsMiddleware', 50 | 'casbin_middleware.middleware.CasbinMiddleware', 51 | ] 52 | 53 | ROOT_URLCONF = 'django_example.urls' 54 | 55 | TEMPLATES = [ 56 | { 57 | 'BACKEND': 'django.template.backends.django.DjangoTemplates', 58 | 'DIRS': [], 59 | 'APP_DIRS': True, 60 | 'OPTIONS': { 61 | 'context_processors': [ 62 | 'django.template.context_processors.debug', 63 | 'django.template.context_processors.request', 64 | 'django.contrib.auth.context_processors.auth', 65 | 'django.contrib.messages.context_processors.messages', 66 | ], 67 | }, 68 | }, 69 | ] 70 | 71 | WSGI_APPLICATION = 'django_example.wsgi.application' 72 | 73 | 74 | # Database 75 | # https://docs.djangoproject.com/en/4.0/ref/settings/#databases 76 | 77 | DATABASES = { 78 | 'default': { 79 | 'ENGINE': 'django.db.backends.sqlite3', 80 | 'NAME': BASE_DIR / 'db.sqlite3', 81 | } 82 | } 83 | 84 | 85 | # Password validation 86 | # https://docs.djangoproject.com/en/4.0/ref/settings/#auth-password-validators 87 | 88 | AUTH_PASSWORD_VALIDATORS = [ 89 | { 90 | 'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator', 91 | }, 92 | { 93 | 'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator', 94 | }, 95 | { 96 | 'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator', 97 | }, 98 | { 99 | 'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator', 100 | }, 101 | ] 102 | 103 | 104 | # Internationalization 105 | # https://docs.djangoproject.com/en/4.0/topics/i18n/ 106 | 107 | LANGUAGE_CODE = 'en-us' 108 | 109 | TIME_ZONE = 'UTC' 110 | 111 | USE_I18N = True 112 | 113 | USE_TZ = True 114 | 115 | 116 | # Static files (CSS, JavaScript, Images) 117 | # https://docs.djangoproject.com/en/4.0/howto/static-files/ 118 | 119 | STATIC_URL = 'static/' 120 | 121 | # Default primary key field type 122 | # https://docs.djangoproject.com/en/4.0/ref/settings/#default-auto-field 123 | 124 | DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField' 125 | -------------------------------------------------------------------------------- /django_example/urls.py: -------------------------------------------------------------------------------- 1 | """django_example URL Configuration 2 | 3 | The `urlpatterns` list routes URLs to views. For more information please see: 4 | https://docs.djangoproject.com/en/4.0/topics/http/urls/ 5 | Examples: 6 | Function views 7 | 1. Add an import: from my_app import views 8 | 2. Add a URL to urlpatterns: path('', views.home, name='home') 9 | Class-based views 10 | 1. Add an import: from other_app.views import Home 11 | 2. Add a URL to urlpatterns: path('', Home.as_view(), name='home') 12 | Including another URLconf 13 | 1. Import the include() function: from django.urls import include, path 14 | 2. Add a URL to urlpatterns: path('blog/', include('blog.urls')) 15 | """ 16 | from django.contrib import admin 17 | from django.urls import path 18 | 19 | urlpatterns = [ 20 | path('admin/', admin.site.urls), 21 | ] 22 | -------------------------------------------------------------------------------- /django_example/wsgi.py: -------------------------------------------------------------------------------- 1 | """ 2 | WSGI config for django_example project. 3 | 4 | It exposes the WSGI callable as a module-level variable named ``application``. 5 | 6 | For more information on this file, see 7 | https://docs.djangoproject.com/en/4.0/howto/deployment/wsgi/ 8 | """ 9 | 10 | import os 11 | 12 | from django.core.wsgi import get_wsgi_application 13 | 14 | os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'django_example.settings') 15 | 16 | application = get_wsgi_application() 17 | -------------------------------------------------------------------------------- /manage.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python 2 | """Django's command-line utility for administrative tasks.""" 3 | import os 4 | import sys 5 | 6 | 7 | def main(): 8 | """Run administrative tasks.""" 9 | os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'django_example.settings') 10 | try: 11 | from django.core.management import execute_from_command_line 12 | except ImportError as exc: 13 | raise ImportError( 14 | "Couldn't import Django. Are you sure it's installed and " 15 | "available on your PYTHONPATH environment variable? Did you " 16 | "forget to activate a virtual environment?" 17 | ) from exc 18 | execute_from_command_line(sys.argv) 19 | 20 | 21 | if __name__ == '__main__': 22 | main() 23 | -------------------------------------------------------------------------------- /pyproject.toml: -------------------------------------------------------------------------------- 1 | [tool.black] 2 | line-length = 120 -------------------------------------------------------------------------------- /requirements.txt: -------------------------------------------------------------------------------- 1 | django 2 | casbin --------------------------------------------------------------------------------