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from fastapi import Depends, APIRouter, Form
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from fastapi import Request
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from fastapi.responses import HTMLResponse
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from fastapi.templating import Jinja2Templates
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from fastapi_jwt_auth import AuthJWT
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from pydantic import BaseModel
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# Path to html templates used in this file
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templates = Jinja2Templates(directory="templates/auth")
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# prefix used for all endpoints in this file
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auth = APIRouter(prefix="")
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class Settings(BaseModel):
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authjwt_secret_key: str = "secret"
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# Configure application to store and get JWT from cookies
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authjwt_token_location: set = {"cookies"}
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# Disable CSRF Protection for this example. default is True
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authjwt_cookie_csrf_protect: bool = False
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@AuthJWT.load_config
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def get_config():
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return Settings()
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# admin username and password
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fake_users_db = {
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"admin": {
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"username": "admin",
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"password": "admin"
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}
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}
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@auth.get("/login", response_class=HTMLResponse)
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async def login_get(request: Request):
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"""
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return html template for login
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"""
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return templates.TemplateResponse("login.html", {"request": request})
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@auth.post("/login", response_class=HTMLResponse)
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async def login(username: str = Form(...), password: str = Form(...), Authorize: AuthJWT = Depends()):
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"""
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Endpoint called from login template. Checks if given username and password aligns with admin
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username and password and returns token for browser according to given username and password
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"""
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user_dict = fake_users_db.get(username)
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if user_dict != None:
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if user_dict["username"] == username and user_dict["password"] == password:
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access_token = Authorize.create_access_token(subject="admin", expires_time=False)
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refresh_token = Authorize.create_refresh_token(subject="admin", expires_time=False)
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else:
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access_token = Authorize.create_access_token(subject="host", expires_time=False)
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refresh_token = Authorize.create_refresh_token(subject="host", expires_time=False)
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else:
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access_token = Authorize.create_access_token(subject="host", expires_time=False)
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refresh_token = Authorize.create_refresh_token(subject="host", expires_time=False)
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# Set the JWT cookies in the response
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Authorize.set_access_cookies(access_token)
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Authorize.set_refresh_cookies(refresh_token)
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return """
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<html>
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<head>
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<title>Login</title>
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</head>
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<body>
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<h1>Logged in</h1>
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<form action="/logs-web" method="get">
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<input type="submit" value="Back" />
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</form>
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</body>
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</html>
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"""
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@auth.post('/refresh')
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def refresh(Authorize: AuthJWT = Depends()):
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"""
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endpoint for refreshing browser token. Not used at the moment since lifetime of given tokens are
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unlimited.
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"""
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Authorize.jwt_refresh_token_required()
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current_user = Authorize.get_jwt_subject()
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new_access_token = Authorize.create_access_token(subject=current_user)
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# Set the JWT cookies in the response
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Authorize.set_access_cookies(new_access_token)
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return {"msg": "The token has been refresh"}
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@auth.get('/logout', response_class=HTMLResponse)
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def logout(Authorize: AuthJWT = Depends()):
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"""
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Endpoint for deleting cookie token with acces role.
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"""
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Authorize.jwt_optional()
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Authorize.unset_jwt_cookies()
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return """
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<html>
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<head>
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<title>Logout</title>
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</head>
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<body>
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<h1>Logged Out</h1>
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<form action="/logs-web" method="get">
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<input type="submit" value="Back" />
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</form>
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</body>
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</html>
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"""
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