127 lines
4.1 KiB
Python
127 lines
4.1 KiB
Python
# -*- coding: UTF-8 -*
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# Authentication code borrowed from Miguel Grinberg's Mega Tutorial
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# (see https://github.com/miguelgrinberg/microblog)
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# and modified for ScoDoc
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# Under The MIT License (MIT)
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# Copyright (c) 2017 Miguel Grinberg
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# Permission is hereby granted, free of charge, to any person obtaining a copy of
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# this software and associated documentation files (the "Software"), to deal in
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# the Software without restriction, including without limitation the rights to
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# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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# the Software, and to permit persons to whom the Software is furnished to do so,
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# subject to the following conditions:
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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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from functools import wraps
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from flask import g
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from flask_httpauth import HTTPBasicAuth, HTTPTokenAuth
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import flask_login
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from flask_login import current_user
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from app import log
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from app.auth.models import User
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from app.api.errors import error_response
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basic_auth = HTTPBasicAuth()
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token_auth = HTTPTokenAuth()
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@basic_auth.verify_password
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def verify_password(username, password):
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"Verify password for this user"
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user = User.query.filter_by(user_name=username).first()
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if user and user.check_password(password):
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g.current_user = user
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# note: est aussi basic_auth.current_user()
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return user
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@basic_auth.error_handler
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def basic_auth_error(status):
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"error response (401 for invalid auth.)"
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return error_response(status)
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@token_auth.verify_token
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def verify_token(token) -> User:
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"""Retrouve l'utilisateur à partir du jeton.
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Si la requête n'a pas de jeton, token == "".
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"""
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user = User.check_token(token) if token else None
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flask_login.login_user(user)
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g.current_user = user
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return user
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@token_auth.error_handler
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def token_auth_error(status):
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"Réponse en cas d'erreur d'auth."
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return error_response(status)
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@token_auth.get_user_roles
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def get_user_roles(user):
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return user.roles
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def token_permission_required(permission):
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"Décorateur pour les fonctions de l'API ScoDoc"
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def decorator(f):
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@wraps(f)
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def decorated_function(*args, **kwargs):
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# token_auth.login_required()
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current_user = basic_auth.current_user()
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if not current_user or not current_user.has_permission(permission, None):
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if current_user:
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message = f"API permission denied (user {current_user})"
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else:
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message = f"API permission denied (no user supplied)"
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log(message)
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# raise werkzeug.exceptions.Forbidden(description=message)
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return error_response(403, message=None)
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return f(*args, **kwargs)
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# return decorated_function(token_auth.login_required())
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return decorated_function
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return decorator
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def permission_required_api(permission_web, permission_api):
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"""Décorateur pour les fonctions de l'API accessibles en mode jeton
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ou en mode web.
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Si cookie d'authentification web, utilise pour se logger et calculer les
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permissions.
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Sinon, tente le jeton jwt.
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"""
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def decorator(f):
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@wraps(f)
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def decorated_function(*args, **kwargs):
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scodoc_dept = getattr(g, "scodoc_dept", None)
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if not current_user.has_permission(permission_web, scodoc_dept):
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# try API
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return token_auth.login_required(
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token_permission_required(permission_api)(f)
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)(*args, **kwargs)
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return f(*args, **kwargs)
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return decorated_function
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return decorator
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