.woodpecker.yml

@@ -3,5 +3,6 @@ pipeline:
     image: python
     commands:
       - pip install virtualenv
-      - virtualenv venv
       - make env
+      - make lint
+      - make coverage

Makefile

@@ -1,2 +1,32 @@
-env: 
+define run_migrations ## run migrations
+	@ . ./venv/bin/activate && python manage.py makemigrations
+	@ . ./venv/bin/activate && python manage.py migrate
+endef
+
+default: ## Run app
+	$(call run_migrations)
+	. ./venv/bin/activate && python manage.py runserver
+
+env: ## setup environment
+	@-virtualenv venv
 	. ./venv/bin/activate && pip install -r requirements.txt
+
+coverage: ## Generate test coverage report
+	. ./venv/bin/activate && coverage run manage.py test
+	. ./venv/bin/activate && coverage report -m
+	. ./venv/bin/activate && coverage html
+
+freeze: ## Freeze python dependencies
+	@. ./venv/bin/activate && pip freeze > requirements.txt
+
+help: ## Prints help for targets with comments
+	@cat $(MAKEFILE_LIST) | grep -E '^[a-zA-Z_-]+:.*?## .*$$' | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
+
+lint: ## Run linter
+	@./venv/bin/black accounts sso
+
+migrate: ## Run migrations
+	$(call run_migrations)
+
+test: ## Run tests
+	@. ./venv/bin/activate && python manage.py test --parallel

accounts/admin.py

@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.

accounts/apps.py

@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class AccountsConfig(AppConfig):
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "accounts"

accounts/management/commands/create_oidc.py

@@ -0,0 +1,110 @@
+# Copyright © 2022 Aravinth Manivannan <realaravinth@batsense.net>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from django.core.management.base import BaseCommand
+from django.core.exceptions import ValidationError
+from django.conf import settings
+from django.contrib.auth import get_user_model
+
+from oauth2_provider.models import get_application_model
+from oauth2_provider.generators import generate_client_id, generate_client_secret
+
+from accounts.utils import gen_secret
+
+Application = get_application_model()
+
+
+class Command(BaseCommand):
+    help = "Get user ID from username"
+    app_name_key = "app_name"
+    username_key = "username"
+    redirect_uri_key = "redirect_uri"
+
+    def add_arguments(self, parser):
+        parser.add_argument(self.app_name_key, type=str, help="The application name")
+
+        parser.add_argument(
+            self.username_key,
+            type=str,
+            help="The username of user who will own this app",
+        )
+
+        parser.add_argument(
+            self.redirect_uri_key,
+            type=str,
+            help="The redirection URI of relying party/client",
+        )
+
+    def handle(self, *args, **options):
+        if self.username_key not in options:
+            self.stdout.write(self.style.ERROR("Please provide username"))
+            return
+        if self.app_name_key not in options:
+            self.stdout.write(self.style.ERROR("Please provide application name"))
+            return
+
+        if self.redirect_uri_key not in options:
+            self.stdout.write(self.style.ERROR("Please provide redirect uri"))
+            return
+
+        username = options[self.username_key]
+        application_name = options[self.app_name_key]
+        redirect_uri = options[self.redirect_uri_key]
+
+        User = get_user_model()
+        if not User.objects.filter(username=username).exists():
+            self.stderr.write(self.style.ERROR(f"user {username} not found"))
+            return
+
+        user = User.objects.get(username=username)
+        #        python manage.py createapplication --name demo-oidc-app --user 1 --client-id 22500acb0bcfcba137d6b8ae96d3f2 --client-secret 296055337620b0e443ad24a32cb675 --algorithm HS256 --skip-authorization --redirect-uri http://example.org/uri1  confidential code -v
+
+        client_id = generate_client_id()
+        client_secret = generate_client_secret()
+        config = {
+            "name": application_name,
+            "user_id": user.id,
+            "client_id": client_id,
+            "client_secret": client_secret,
+            "algorithm": "HS256",
+            "skip_authorization": True,
+            "redirect_uris": redirect_uri,
+            "authorization_grant_type": "authorization-code",
+            "client_type": "confidential",
+        }
+
+        app = Application(**config)
+
+        try:
+            app.full_clean()
+        except ValidationError as exc:
+            errors = "\n ".join(
+                [
+                    "- " + err_key + ": " + str(err_value)
+                    for err_key, err_value in exc.message_dict.items()
+                ]
+            )
+            self.stdout.write(
+                self.style.ERROR("Please correct the following errors:\n %s" % errors)
+            )
+        else:
+            app.save()
+            self.stdout.write(
+                self.style.SUCCESS(
+                    f"New application {application_name} created successfully."
+                )
+            )
+            self.stdout.write(f"client_id: {client_id}")
+            self.stdout.write(f"client_secret: {client_secret}")

accounts/models.py

@@ -0,0 +1,3 @@
+from django.db import models
+
+# Create your models here.

accounts/tests.py

@@ -0,0 +1,104 @@
+# Create your tests here.
+
+# Copyright © 2022 Aravinth Manivannan <realaravinth@batsense.net>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+import time
+import os
+from io import StringIO
+from urllib.parse import urlparse, urlunparse
+
+import requests
+
+from django.core import mail
+from django.contrib.auth import get_user_model
+from django.core.management import call_command
+from django.urls import reverse
+from django.test import TestCase, Client, override_settings
+from django.utils.http import urlencode
+from django.contrib.auth import authenticate
+from django.conf import settings
+
+
+from oauth2_provider.models import get_application_model
+
+
+def register_util(t: TestCase, username: str):
+    t.password = "asdklfja;ldkfja;df"
+    t.username = username
+    t.email = f"{t.username}@example.org"
+    t.user = get_user_model().objects.create(
+        username=t.username,
+        email=t.email,
+    )
+    t.user.set_password(t.password)
+    t.user.save()
+
+
+def login_util(t: TestCase, c: Client, redirect_to: str):
+    payload = {
+        "login": t.username,
+        "password": t.password,
+    }
+    resp = c.post(reverse("accounts.login"), payload)
+    t.assertEqual(resp.status_code, 302)
+    t.assertEqual(resp.headers["location"], reverse(redirect_to))
+
+
+class CreateOidCApplicaiton(TestCase):
+    """
+    Test command: manage.py create_oidc
+    """
+
+    def setUp(self):
+        self.username = "oidcadmin"
+        register_util(t=self, username=self.username)
+
+    def test_cmd(self):
+
+        Application = get_application_model()
+
+        stdout = StringIO()
+        stderr = StringIO()
+
+        redirect_uri = "http://example.org"
+        app_name = "test_cmd_oidc"
+
+        # username exists
+        call_command(
+            "create_oidc",
+            app_name,
+            self.username,
+            redirect_uri,
+            stdout=stdout,
+            stderr=stderr,
+        )
+        out = stdout.getvalue()
+
+        self.assertIn(f"New application {app_name} created successfully", out)
+
+        client_id = out.split("\n")[1].split(" ")[1]
+
+        self.assertEqual(
+            get_application_model().objects.filter(client_id=client_id).exists(), True
+        )
+        app = get_application_model().objects.get(name=app_name)
+        self.assertEqual(app.client_id, client_id)
+        self.assertEqual(app.name, app_name)
+        self.assertEqual(app.user_id, self.user.id)
+        self.assertEqual(app.redirect_uris, redirect_uri)
+        self.assertEqual(app.skip_authorization, True)
+        self.assertEqual(app.client_type, "confidential")
+        self.assertEqual(app.authorization_grant_type, "authorization-code")
+        self.assertEqual(app.algorithm, "HS256")

accounts/utils.py

@@ -0,0 +1,30 @@
+# Copyright © 2022 Aravinth Manivannan <realaravinth@batsense.net>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+from datetime import datetime, timezone
+
+from django.utils.crypto import get_random_string
+from django.core.mail import send_mail
+from django.shortcuts import redirect
+from django.template.loader import render_to_string
+from django.urls import reverse
+from django.utils.http import urlencode
+from django.conf import settings
+
+
+def gen_secret() -> str:
+    """
+    Generate random secret
+    """
+    return get_random_string(32)

accounts/views.py

@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.

docs/management-cmd.md

@@ -0,0 +1,24 @@
+## 1. Create OIDC application
+
+### Pre-requisites:
+
+1. A registered and active/email-verified user
+
+### Command:
+
+```bash
+python manage.py create_oidc <app-name> <username> <redirect_uri>
+```
+
+### Example:
+
+```bash
+$ python manage.py create_oidc my_application admin https://example.org/sso-redirect
+New application foo created successfully.
+client_id: U6qi6FIzj5AvbYJehEkf7yzVbvUyOAQsrTwspmsQ
+client_secret: OEZjyHT4KBjvpTWod0QIxX8uWmnq8EQi2nsMU5WfZgu94wrzRdHjptEJ57O5SSEWsvOATOFMASVpBqYtboisdyfdpAC43gcMnbbHsP4QRE7dv66e4rYzyIdI9LuBMoh1
+```
+
+Configure [relying
+party/application](https://openid.net/specs/openid-connect-core-1_0.html#Terminology)
+to use `client_id` and `client_secret`

requirements.txt

@@ -1,4 +1,35 @@
 asgiref==3.5.2
-backports.zoneinfo==0.2.1
+astroid==2.11.7
+black==22.6.0
+certifi==2022.6.15
+cffi==1.15.1
+charset-normalizer==2.1.1
+click==8.1.3
+coverage==6.4.4
+cryptography==37.0.4
+Deprecated==1.2.13
+dill==0.3.5.1
 Django==4.1
+django-oauth-toolkit==2.1.0
+greenlet==1.1.2
+idna==3.3
+isort==5.10.1
+jedi==0.18.1
+jwcrypto==1.3.1
+lazy-object-proxy==1.7.1
+mccabe==0.7.0
+msgpack==1.0.4
+mypy-extensions==0.4.3
+oauthlib==3.2.0
+parso==0.8.3
+pathspec==0.9.0
+platformdirs==2.5.2
+pycparser==2.21
+pylint==2.14.5
+pynvim==0.4.3
+requests==2.28.1
 sqlparse==0.4.2
+tomli==2.0.1
+tomlkit==0.11.4
+urllib3==1.26.11
+wrapt==1.14.1

sso/asgi.py

@@ -11,6 +11,6 @@ import os
 
 from django.core.asgi import get_asgi_application
 
-os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'sso.settings')
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "sso.settings")
 
 application = get_asgi_application()

sso/settings.py

@@ -20,7 +20,7 @@ BASE_DIR = Path(__file__).resolve().parent.parent
 # See https://docs.djangoproject.com/en/4.1/howto/deployment/checklist/
 
 # SECURITY WARNING: keep the secret key used in production secret!
-SECRET_KEY = 'django-insecure-xj=ic)(d#6(wuw7z=8y0vv_+wxcg)k^a+cpp53$7s5do^06&@a'
+SECRET_KEY = "django-insecure-xj=ic)(d#6(wuw7z=8y0vv_+wxcg)k^a+cpp53$7s5do^06&@a"
 
 # SECURITY WARNING: don't run with debug turned on in production!
 DEBUG = True
@@ -31,52 +31,54 @@ ALLOWED_HOSTS = []
 # Application definition
 
 INSTALLED_APPS = [
-    'django.contrib.admin',
-    'django.contrib.auth',
-    'django.contrib.contenttypes',
-    'django.contrib.sessions',
-    'django.contrib.messages',
-    'django.contrib.staticfiles',
+    "django.contrib.admin",
+    "django.contrib.auth",
+    "django.contrib.contenttypes",
+    "django.contrib.sessions",
+    "django.contrib.messages",
+    "django.contrib.staticfiles",
+    "oauth2_provider",
+    "accounts",
 ]
 
 MIDDLEWARE = [
-    'django.middleware.security.SecurityMiddleware',
-    'django.contrib.sessions.middleware.SessionMiddleware',
-    'django.middleware.common.CommonMiddleware',
-    'django.middleware.csrf.CsrfViewMiddleware',
-    'django.contrib.auth.middleware.AuthenticationMiddleware',
-    'django.contrib.messages.middleware.MessageMiddleware',
-    'django.middleware.clickjacking.XFrameOptionsMiddleware',
+    "django.middleware.security.SecurityMiddleware",
+    "django.contrib.sessions.middleware.SessionMiddleware",
+    "django.middleware.common.CommonMiddleware",
+    "django.middleware.csrf.CsrfViewMiddleware",
+    "django.contrib.auth.middleware.AuthenticationMiddleware",
+    "django.contrib.messages.middleware.MessageMiddleware",
+    "django.middleware.clickjacking.XFrameOptionsMiddleware",
 ]
 
-ROOT_URLCONF = 'sso.urls'
+ROOT_URLCONF = "sso.urls"
 
 TEMPLATES = [
     {
-        'BACKEND': 'django.template.backends.django.DjangoTemplates',
-        'DIRS': [],
-        'APP_DIRS': True,
-        'OPTIONS': {
-            'context_processors': [
-                'django.template.context_processors.debug',
-                'django.template.context_processors.request',
-                'django.contrib.auth.context_processors.auth',
-                'django.contrib.messages.context_processors.messages',
+        "BACKEND": "django.template.backends.django.DjangoTemplates",
+        "DIRS": [],
+        "APP_DIRS": True,
+        "OPTIONS": {
+            "context_processors": [
+                "django.template.context_processors.debug",
+                "django.template.context_processors.request",
+                "django.contrib.auth.context_processors.auth",
+                "django.contrib.messages.context_processors.messages",
             ],
         },
     },
 ]
 
-WSGI_APPLICATION = 'sso.wsgi.application'
+WSGI_APPLICATION = "sso.wsgi.application"
 
 
 # Database
 # https://docs.djangoproject.com/en/4.1/ref/settings/#databases
 
 DATABASES = {
-    'default': {
-        'ENGINE': 'django.db.backends.sqlite3',
-        'NAME': BASE_DIR / 'db.sqlite3',
+    "default": {
+        "ENGINE": "django.db.backends.sqlite3",
+        "NAME": BASE_DIR / "db.sqlite3",
     }
 }
 
@@ -86,16 +88,16 @@ DATABASES = {
 
 AUTH_PASSWORD_VALIDATORS = [
     {
-        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
+        "NAME": "django.contrib.auth.password_validation.UserAttributeSimilarityValidator",
     },
     {
-        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
+        "NAME": "django.contrib.auth.password_validation.MinimumLengthValidator",
     },
     {
-        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
+        "NAME": "django.contrib.auth.password_validation.CommonPasswordValidator",
     },
     {
-        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
+        "NAME": "django.contrib.auth.password_validation.NumericPasswordValidator",
     },
 ]
 
@@ -103,9 +105,9 @@ AUTH_PASSWORD_VALIDATORS = [
 # Internationalization
 # https://docs.djangoproject.com/en/4.1/topics/i18n/
 
-LANGUAGE_CODE = 'en-us'
+LANGUAGE_CODE = "en-us"
 
-TIME_ZONE = 'UTC'
+TIME_ZONE = "UTC"
 
 USE_I18N = True
 
@@ -115,9 +117,21 @@ USE_TZ = True
 # Static files (CSS, JavaScript, Images)
 # https://docs.djangoproject.com/en/4.1/howto/static-files/
 
-STATIC_URL = 'static/'
+STATIC_URL = "static/"
 
 # Default primary key field type
 # https://docs.djangoproject.com/en/4.1/ref/settings/#default-auto-field
 
-DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
+DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
+
+
+# OIDC django-oauth-toolkit
+LOGIN_URL = "/admin/login/"
+
+OAUTH2_PROVIDER = {
+    "OIDC_ENABLED": True,
+    "PKCE_REQUIRED": False,
+    "SCOPES": {
+        "openid": "OpenID Connect scope",
+    },
+}

sso/urls.py

@@ -14,8 +14,9 @@ Including another URLconf
     2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
 """
 from django.contrib import admin
-from django.urls import path
+from django.urls import path, include
 
 urlpatterns = [
-    path('admin/', admin.site.urls),
+    path("admin/", admin.site.urls),
+    path("o/", include("oauth2_provider.urls", namespace="oauth2_provider")),
 ]

sso/wsgi.py

@@ -11,6 +11,6 @@ import os
 
 from django.core.wsgi import get_wsgi_application
 
-os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'sso.settings')
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "sso.settings")
 
 application = get_wsgi_application()