open-law/app/controllers/book_verify.py

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2023-05-11 08:02:12 +00:00
from flask_login import current_user
from flask import Response, flash, redirect, url_for, request
from app import models as m, db
from app.logger import log
class BookRouteVerifier:
_routes = []
@classmethod
def add_route(cls, route_name: str):
cls._routes.append(route_name)
@classmethod
def remove_route(cls, route_name: str):
cls._routes.remove(route_name)
@classmethod
def is_present(cls, route_name: str) -> bool:
return route_name in cls._routes
def register_book_verify_route(blueprint_name: str):
def decorator(func: callable):
BookRouteVerifier.add_route(f"{blueprint_name}.{func.__name__}")
return func
return decorator
def book_validator() -> Response | None:
if not BookRouteVerifier.is_present(request.endpoint):
return None
request_args = (
{**request.view_args, **request.args} if request.view_args else {**request.args}
)
book_id = request_args.get("book_id")
if book_id:
book: m.Book = db.session.get(m.Book, book_id)
if not book or book.is_deleted or book.owner != current_user:
log(log.INFO, "User: [%s] is not owner of book: [%s]", current_user, book)
flash("You are not owner of this book!", "danger")
return redirect(url_for("book.my_books"))