forked from ScoDoc/ScoDoc
100 lines
2.9 KiB
Python
100 lines
2.9 KiB
Python
# -*- coding: UTF-8 -*
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"""app.auth.logic.py
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"""
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import http
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import flask
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from flask import current_app, g, redirect, request, url_for
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from flask_httpauth import HTTPBasicAuth, HTTPTokenAuth
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import flask_login
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from app import login
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from app.auth.models import User
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from app.models.config import ScoDocSiteConfig
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from app.scodoc.sco_utils import json_error
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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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Appelé lors d'une demande de jeton (normalement via la route /tokens)
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"""
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user: 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 json_error(status)
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@login.user_loader
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def load_user(uid: str) -> User:
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"flask-login: accès à un utilisateur"
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return User.query.get(int(uid))
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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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if user is not 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 json_error(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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@login.request_loader
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def load_user_from_request(req: flask.Request) -> User:
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"""Custom Login using Request Loader"""
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# Try token
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try:
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auth_type, token = req.headers["Authorization"].split(None, 1)
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except (ValueError, KeyError):
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# The Authorization header is either empty or has no token
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return None
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if auth_type == "Bearer" and token:
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return verify_token(token)
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return None
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@login.unauthorized_handler
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def unauthorized():
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"flask-login: si pas autorisé, redirige vers page login, sauf si API"
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if request.blueprint == "api" or request.blueprint == "apiweb":
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return json_error(http.HTTPStatus.UNAUTHORIZED, "Non autorise (logic)")
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return redirect(url_for("auth.login"))
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def logout() -> flask.Response:
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"""Logout the current user: If CAS session, logout from CAS. Redirect."""
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if flask_login.current_user:
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user_name = getattr(flask_login.current_user, "user_name", "anonymous")
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current_app.logger.info(f"logout user {user_name}")
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flask_login.logout_user()
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if ScoDocSiteConfig.is_cas_enabled() and flask.session.get("scodoc_cas_login_date"):
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flask.session.pop("scodoc_cas_login_date", None)
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return redirect(url_for("cas.logout"))
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return redirect(url_for("scodoc.index"))
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