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calibre-web/cps/usermanagement.py

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# -*- coding: utf-8 -*-
# This file is part of the Calibre-Web (https://github.com/janeczku/calibre-web)
# Copyright (C) 2018-2020 OzzieIsaacs
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from functools import wraps
from sqlalchemy.sql.expression import func
from .cw_login import login_required
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from flask import request, g
from flask_httpauth import HTTPBasicAuth
from werkzeug.datastructures import Authorization
from werkzeug.security import check_password_hash
from . import lm, ub, config, logger, limiter, constants, services
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log = logger.create()
auth = HTTPBasicAuth()
@auth.verify_password
def verify_password(username, password):
user = ub.session.query(ub.User).filter(func.lower(ub.User.name) == username.lower()).first()
if user:
if user.name.lower() == "guest":
if config.config_anonbrowse == 1:
return user
if config.config_login_type == constants.LOGIN_LDAP and services.ldap:
login_result, error = services.ldap.bind_user(user.name, password)
if login_result:
[limiter.limiter.storage.clear(k.key) for k in limiter.current_limits]
return user
if error is not None:
log.error(error)
else:
limiter.check()
if check_password_hash(str(user.password), password):
[limiter.limiter.storage.clear(k.key) for k in limiter.current_limits]
return user
ip_address = request.headers.get('X-Forwarded-For', request.remote_addr)
log.warning('OPDS Login failed for user "%s" IP-address: %s', username, ip_address)
return None
def requires_basic_auth_if_no_ano(f):
@wraps(f)
def decorated(*args, **kwargs):
authorisation = auth.get_auth()
status = None
user = None
if config.config_allow_reverse_proxy_header_login and not authorisation:
user = load_user_from_reverse_proxy_header(request)
if config.config_anonbrowse == 1 and not authorisation:
authorisation = Authorization(
b"Basic", {'username': "Guest", 'password': ""})
if not user:
user = auth.authenticate(authorisation, "")
if user in (False, None):
status = 401
if status:
try:
return auth.auth_error_callback(status)
except TypeError:
return auth.auth_error_callback()
g.flask_httpauth_user = user if user is not True \
else auth.username if auth else None
return auth.ensure_sync(f)(*args, **kwargs)
return decorated
def login_required_if_no_ano(func):
@wraps(func)
def decorated_view(*args, **kwargs):
if config.config_allow_reverse_proxy_header_login:
user = load_user_from_reverse_proxy_header(request)
if user:
g.flask_httpauth_user = user
return func(*args, **kwargs)
g.flask_httpauth_user = None
if config.config_anonbrowse == 1:
return func(*args, **kwargs)
return login_required(func)(*args, **kwargs)
return decorated_view
def user_login_required(func):
@wraps(func)
def decorated_view(*args, **kwargs):
if config.config_allow_reverse_proxy_header_login:
user = load_user_from_reverse_proxy_header(request)
if user:
g.flask_httpauth_user = user
return func(*args, **kwargs)
g.flask_httpauth_user = None
return login_required(func)(*args, **kwargs)
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return decorated_view
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def load_user_from_reverse_proxy_header(req):
rp_header_name = config.config_reverse_proxy_login_header_name
if rp_header_name:
rp_header_username = req.headers.get(rp_header_name)
if rp_header_username:
user = ub.session.query(ub.User).filter(func.lower(ub.User.name) == rp_header_username.lower()).first()
if user:
[limiter.limiter.storage.clear(k.key) for k in limiter.current_limits]
return user
return None
@lm.user_loader
def load_user(user_id, random, session_key):
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user = ub.session.query(ub.User).filter(ub.User.id == int(user_id)).first()
if session_key:
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entry = ub.session.query(ub.User_Sessions).filter(ub.User_Sessions.random == random,
ub.User_Sessions.session_key == session_key).first()
if not entry or entry.user_id != user.id:
return None
elif random:
entry = ub.session.query(ub.User_Sessions).filter(ub.User_Sessions.random == random).first()
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if not entry or entry.user_id != user.id:
return None
return user
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