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111 lines
3.5 KiB
111 lines
3.5 KiB
3 years ago
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import sys
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from types import ModuleType
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from flask import request
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from http import HTTPStatus
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from functools import wraps
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from . import ram_db
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from . import returns
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_token: str | None = None
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_user_id: int | None = None
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class Module(ModuleType):
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def no_content(self, fn):
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"""
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Allows a Flask route to return None, which is converted into
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HTTP 201 No Content.
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"""
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@wraps(fn)
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def wrapper(*args, **kargs):
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result = fn(*args, **kargs)
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if result is None:
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return None, HTTPStatus.NO_CONTENT
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else:
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return result
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return wrapper
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@property
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def token(self) -> str:
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if _token is None:
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raise Exception('No token available')
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return _token
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@property
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def user_id(self) -> int:
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if _user_id is None:
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raise Exception('No user_id available')
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return _user_id
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def ensure_logged_in(self, fn):
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"""
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Ensure the user is logged in by providing an Authorization: Bearer token
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header.
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@param token whether the token should be supplied after validation
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@param user_id whether the user_id should be supplied after validation
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@return decorator which supplies the requested parameters
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"""
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@wraps(fn)
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def wrapper(*args, **kargs):
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token = request.headers.get('Authorization', None)
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if token is None:
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return returns.NO_AUTHORIZATION
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if not token.startswith('Bearer '):
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return returns.INVALID_AUTHORIZATION
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token = token[7:]
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user_id = ram_db.get_user(token)
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if user_id is None:
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return returns.INVALID_AUTHORIZATION
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global _token
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_token = token
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global _user_id
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_user_id = user_id
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result = fn(*args, **kargs)
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_token = None
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_user_id = None
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return result
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return wrapper
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# def ensure_logged_in(token=False, user_id=False):
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# """
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# Ensure the user is logged in by providing an Authorization: Bearer token
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# header.
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#
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# @param token whether the token should be supplied after validation
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# @param user_id whether the user_id should be supplied after validation
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# @return decorator which supplies the requested parameters
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# """
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# def decorator(fn):
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# pass_token = token
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# pass_user_id = user_id
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#
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# @wraps(fn)
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# def wrapper(*args, **kargs):
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# token = request.headers.get('Authorization', None)
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# if token is None:
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# return returns.NO_AUTHORIZATION
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# if not token.startswith('Bearer '):
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# return returns.INVALID_AUTHORIZATION
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# token = token[7:]
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# user_id = ram_db.get_user(token)
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# if user_id is None:
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# return returns.INVALID_AUTHORIZATION
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#
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# if pass_user_id and pass_token:
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# return fn(user_id=user_id, token=token, *args, **kargs)
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# elif pass_user_id:
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# return fn(user_id=user_id, *args, **kargs)
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# elif pass_token:
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# return fn(token=token, *args, **kargs)
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# else:
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# return fn(*args, **kargs)
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# return wrapper
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# return decorator
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sys.modules[__name__] = Module(__name__)
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