Prepare repository for open-source (GH-6)

.github/workflows/publish.yml

@@ -0,0 +1,28 @@
+name: Publish to PyPI
+
+on:
+  release:
+    types: [ published ]
+
+jobs:
+  deploy:
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python
+        uses: actions/setup-python@v3
+        with:
+          python-version: '3.x'
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install setuptools wheel twine
+      - name: Build and publish
+        env:
+          TWINE_USERNAME: ${{ secrets.PYPI_USERNAME }}
+          TWINE_PASSWORD: ${{ secrets.PYPI_PASSWORD }}
+        run: |
+          python setup.py sdist bdist_wheel
+          twine upload dist/*

.github/workflows/tests.yml

@@ -0,0 +1,55 @@
+name: tests
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os || 'ubuntu-latest' }}
+    strategy:
+      matrix:
+        include:
+          - python: "3.6"
+            env: py36-fastapi68
+            os: ubuntu-20.04  # 3.6 is not available on ubuntu-20.04
+          - python: "3.8"
+            env: py38-fastapi68
+          - python: "3.10"
+            env: py310-fastapi68
+          - python: "3.11"
+            env: py311-fastapi68
+
+          - python: "3.7"
+            env: py37-fastapi84
+          - python: "3.9"
+            env: py39-fastapi84
+          - python: "3.10"
+            env: py310-fastapi84
+          - python: "3.11"
+            env: py311-fastapi84
+
+          - python: "3.7"
+            env: py37-fastapi99
+          - python: "3.9"
+            env: py39-fastapi99
+          - python: "3.10"
+            env: py310-fastapi99
+          - python: "3.11"
+            env: py311-fastapi99
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python ${{ matrix.python }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python }}
+      - name: Install dependencies
+        run: |
+          pip install --upgrade pip
+          sh build.sh
+          pip install tox tox-gh-actions
+      - name: Run tests using tox
+        run: tox -e ${{ matrix.env }}

.gitignore

@@ -0,0 +1,16 @@
+# caches
+.idea
+.tox
+.pytest_cache
+*.egg-info
+__pycache__
+
+# docs
+docs/node_modules
+docs/package-lock.json
+docs/.vitepress/cache
+docs/.vitepress/dist
+
+# build
+build
+dist

README.md

@@ -1,28 +1,107 @@
-# fastapi-oauth2
+# fastapi-oauth2 <img src="https://github.com/pysnippet.png" align="right" height="64" />
 
-Easy to setup OAuth2 social authentication mechanism with support for several auth providers.
+[![PyPI](https://img.shields.io/pypi/v/fastapi-oauth2.svg)](https://pypi.org/project/fastapi-oauth2/)
+[![Python](https://img.shields.io/pypi/pyversions/fastapi-oauth2.svg?logoColor=white)](https://pypi.org/project/fastapi-oauth2/)
+[![FastAPI](https://img.shields.io/badge/fastapi-%E2%89%A50.68.1-009486)](https://pypi.org/project/fastapi-oauth2/)
+[![Tests](https://github.com/pysnippet/fastapi-oauth2/actions/workflows/tests.yml/badge.svg)](https://github.com/pysnippet/fastapi-oauth2/actions/workflows/tests.yml)
+[![License](https://img.shields.io/pypi/l/fastapi-oauth2.svg)](https://github.com/pysnippet/fastapi-oauth2/blob/master/LICENSE)
 
-## Demo
+FastAPI OAuth2 is a middleware-based social authentication mechanism supporting several auth providers. It depends on
+the [social-core](https://github.com/python-social-auth/social-core) authentication backends.
 
-This sample application is made to demonstrate the use of the [**fastapi-oauth2**](./fastapi_oauth2) package.
+## Features to be implemented
 
-## Running the application
+- Use multiple OAuth2 providers at the same time
+    * There need to be provided a way to configure the OAuth2 for multiple providers
+- Provide `fastapi.security.*` implementations that use cookies
+- Token -> user data, user data -> token easy conversion
+- Customizable OAuth2 routes
+- Registration support
+
+## Installation
 
-```bash
-uvicorn main:app --reload
+```shell
+python -m pip install fastapi-oauth2
 ```
 
-## TODO
+## Configuration
 
-- Make the [**fastapi-oauth2**](./fastapi_oauth2) depend
-  on (overuse) the [**social-core**](https://github.com/python-social-auth/social-core)
+Configuration requires you to provide the JWT requisites and define the clients of the particular providers. The
+middleware configuration is declared with the `OAuth2Config` and `OAuth2Client` classes.
 
-## Features
+### OAuth2Config
 
-- Integrate with any existing FastAPI project (no dependencies of the project should stop the work of
-  the `fastapi-oauth2`)
-    * Implementation must allow to provide a context for configurations (also, see how it is done in another projects)
-- Use multiple OAuth2 providers at the same time
-    * There need to be provided a way to configure the OAuth2 for multiple providers
-- Token -> user data, user data -> token easy conversion
-- Customize OAuth2 routes
+- `allow_http` - Allow insecure HTTP requests. Defaults to `False`.
+- `jwt_secret` - The secret key used to sign the JWT. Defaults to `None`.
+- `jwt_expires` - The expiration time of the JWT in seconds. Defaults to `900`.
+- `jwt_algorithm` - The algorithm used to sign the JWT. Defaults to `HS256`.
+- `clients` - The list of the OAuth2 clients. Defaults to `[]`.
+
+### OAuth2Client
+
+- `backend` - The [social-core](https://github.com/python-social-auth/social-core) authentication backend classname.
+- `client_id` - The OAuth2 client ID for the particular provider.
+- `client_secret` - The OAuth2 client secret for the particular provider.
+- `redirect_uri` - The OAuth2 redirect URI to redirect to after success. Defaults to the base URL.
+- `scope` - The OAuth2 scope for the particular provider. Defaults to `[]`.
+
+It is also important to mention that for the configured clients of the auth providers, the authorization URLs are
+accessible by the `/oauth2/{provider}/auth` path where the `provider` variable represents the exact value of the auth
+provider backend `name` attribute.
+
+```python
+from fastapi_oauth2.client import OAuth2Client
+from fastapi_oauth2.config import OAuth2Config
+from social_core.backends.github import GithubOAuth2
+
+oauth2_config = OAuth2Config(
+    allow_http=False,
+    jwt_secret=os.getenv("JWT_SECRET"),
+    jwt_expires=os.getenv("JWT_EXPIRES"),
+    jwt_algorithm=os.getenv("JWT_ALGORITHM"),
+    clients=[
+        OAuth2Client(
+            backend=GithubOAuth2,
+            client_id=os.getenv("OAUTH2_CLIENT_ID"),
+            client_secret=os.getenv("OAUTH2_CLIENT_SECRET"),
+            redirect_uri="https://pysnippet.org/",
+            scope=["user:email"],
+        ),
+    ]
+)
+```
+
+## Integration
+
+To integrate the package into your FastAPI application, you need to add the `OAuth2Middleware` with particular configs
+in the above-represented format and include the router to the main router of the application.
+
+```python
+from fastapi import FastAPI
+from fastapi_oauth2.middleware import OAuth2Middleware
+from fastapi_oauth2.router import router as oauth2_router
+
+app = FastAPI()
+app.include_router(oauth2_router)
+app.add_middleware(OAuth2Middleware, config=oauth2_config)
+```
+
+After adding the middleware, the `user` attribute will be available in the request context. It will contain the user
+data provided by the OAuth2 provider.
+
+```jinja2
+{% if request.user.is_authenticated %}
+    <a href="/oauth2/logout">Sign out</a>
+{% else %}
+    <a href="/oauth2/github/auth">Sign in</a>
+{% endif %}
+```
+
+## Contribute
+
+Any contribution is welcome. If you have any ideas or suggestions, feel free to open an issue or a pull request. And
+don't forget to add tests for your changes.
+
+## License
+
+Copyright (C) 2023 Artyom Vancyan. [MIT](https://github.com/pysnippet/fastapi-oauth2/blob/master/LICENSE)

.env → examples/demonstration/.env

@@ -1,6 +1,5 @@
 OAUTH2_CLIENT_ID=eccd08d6736b7999a32a
 OAUTH2_CLIENT_SECRET=642999c1c5f2b3df8b877afdc78252ef5b594d31
-OAUTH2_CALLBACK_URL=http://127.0.0.1:8000/oauth2/token
 
 JWT_SECRET=secret
 JWT_ALGORITHM=HS256

examples/demonstration/README.md

@@ -0,0 +1,27 @@
+## Demonstration
+
+This sample application is made to demonstrate the use of
+the [**fastapi-oauth2**](https://github.com/pysnippet/fastapi-oauth2) package.
+
+## Installation
+
+You got to have `fastapi-oauth2` installed in your environment. To do so, run the following command in
+the `pyproject.toml` file's directory.
+
+### Regular install
+
+```bash
+pip install fastapi-oauth2
+```
+
+### Install in editable mode
+
+```bash
+pip install -e .
+```
+
+## Running the application
+
+```bash
+uvicorn main:app --reload
+```

examples/demonstration/config.py

@@ -0,0 +1,25 @@
+import os
+
+from dotenv import load_dotenv
+from social_core.backends.github import GithubOAuth2
+
+from fastapi_oauth2.client import OAuth2Client
+from fastapi_oauth2.config import OAuth2Config
+
+load_dotenv()
+
+oauth2_config = OAuth2Config(
+    allow_http=True,
+    jwt_secret=os.getenv("JWT_SECRET"),
+    jwt_expires=os.getenv("JWT_EXPIRES"),
+    jwt_algorithm=os.getenv("JWT_ALGORITHM"),
+    clients=[
+        OAuth2Client(
+            backend=GithubOAuth2,
+            client_id=os.getenv("OAUTH2_CLIENT_ID"),
+            client_secret=os.getenv("OAUTH2_CLIENT_SECRET"),
+            # redirect_uri="http://127.0.0.1:8000/",
+            scope=["user:email"],
+        ),
+    ]
+)

examples/demonstration/main.py

@@ -0,0 +1,14 @@
+from fastapi import APIRouter
+from fastapi import FastAPI
+
+from config import oauth2_config
+from fastapi_oauth2.middleware import OAuth2Middleware
+from fastapi_oauth2.router import router as oauth2_router
+from router import router as app_router
+
+router = APIRouter()
+
+app = FastAPI()
+app.include_router(app_router)
+app.include_router(oauth2_router)
+app.add_middleware(OAuth2Middleware, config=oauth2_config)

examples/demonstration/router.py

@@ -0,0 +1,21 @@
+import json
+
+from fastapi import Depends
+from fastapi import Request, APIRouter
+from fastapi.responses import HTMLResponse
+from fastapi.security import OAuth2
+from fastapi.templating import Jinja2Templates
+
+oauth2 = OAuth2()
+router = APIRouter()
+templates = Jinja2Templates(directory="templates")
+
+
+@router.get("/", response_class=HTMLResponse)
+async def root(request: Request):
+    return templates.TemplateResponse("index.html", {"request": request, "user": request.user, "json": json})
+
+
+@router.get("/user")
+def user(request: Request, _: str = Depends(oauth2)):
+    return request.user