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provider.py
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provider.py
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from starlette.requests import Request
from starlette.responses import Response
from starlette_admin.auth import AdminConfig, AdminUser, AuthProvider
from starlette_admin.exceptions import FormValidationError, LoginFailed
users = {
"admin": {
"name": "Administrator",
"avatar": "avatar.png",
"company_logo_url": "avatar.png",
"roles": ["read", "create", "edit", "delete", "action_make_published"],
},
"johndoe": {
"name": "John Doe",
"avatar": None, # user avatar is optional
"roles": ["read", "create", "edit", "action_make_published"],
},
"viewer": {"name": "Viewer", "avatar": None, "roles": ["read"]},
}
class MyAuthProvider(AuthProvider):
"""
This is for demo purpose, it's not a better
way to save and validate user credentials
"""
async def login(
self,
username: str,
password: str,
remember_me: bool,
request: Request,
response: Response,
) -> Response:
if len(username) < 3:
"""Form data validation"""
raise FormValidationError(
{"username": "Ensure username has at least 03 characters"}
)
if username in users and password == "password":
"""Save `username` in session"""
request.session.update({"username": username})
return response
raise LoginFailed("Invalid username or password")
async def is_authenticated(self, request) -> bool:
if request.session.get("username", None) in users:
"""
Save current `user` object in the request state. Can be used later
to restrict access to connected user.
"""
request.state.user = users.get(request.session["username"])
return True
return False
def get_admin_config(self, request: Request) -> AdminConfig:
user = request.state.user # Retrieve current user
# Update app title according to current_user
custom_app_title = "Hello, " + user["name"] + "!"
# Update logo url according to current_user
custom_logo_url = None
if user.get("company_logo_url", None):
custom_logo_url = request.url_for("static", path=user["company_logo_url"])
return AdminConfig(
app_title=custom_app_title,
logo_url=custom_logo_url,
)
def get_admin_user(self, request: Request) -> AdminUser:
user = request.state.user # Retrieve current user
photo_url = None
if user["avatar"] is not None:
photo_url = request.url_for("static", path=user["avatar"])
return AdminUser(username=user["name"], photo_url=photo_url)
async def logout(self, request: Request, response: Response) -> Response:
request.session.clear()
return response