calibre-web/cps/oauth.py
Ozzieisaacs 4230226716 Link fixes
Fixes reader button visible in detail view
Fix formats to convert (added htmlz)
Fix logger in updater
Added request "v3" of github api on update
Fix quotes parameter on external calls
E-Mail logger working more stable (also on python3)
Routing fixes
Change import in ub
2019-02-16 07:23:36 +01:00

138 lines
5.7 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
from flask import session
try:
from flask_dance.consumer.backend.sqla import SQLAlchemyBackend, first, _get_real_user
from sqlalchemy.orm.exc import NoResultFound
class OAuthBackend(SQLAlchemyBackend):
"""
Stores and retrieves OAuth tokens using a relational database through
the `SQLAlchemy`_ ORM.
.. _SQLAlchemy: http://www.sqlalchemy.org/
"""
def __init__(self, model, session,
user=None, user_id=None, user_required=None, anon_user=None,
cache=None):
super(OAuthBackend, self).__init__(model, session, user, user_id, user_required, anon_user, cache)
def get(self, blueprint, user=None, user_id=None):
if blueprint.name + '_oauth_token' in session and session[blueprint.name + '_oauth_token'] != '':
return session[blueprint.name + '_oauth_token']
# check cache
cache_key = self.make_cache_key(blueprint=blueprint, user=user, user_id=user_id)
token = self.cache.get(cache_key)
if token:
return token
# if not cached, make database queries
query = (
self.session.query(self.model)
.filter_by(provider=blueprint.name)
)
uid = first([user_id, self.user_id, blueprint.config.get("user_id")])
u = first(_get_real_user(ref, self.anon_user)
for ref in (user, self.user, blueprint.config.get("user")))
use_provider_user_id = False
if blueprint.name + '_oauth_user_id' in session and session[blueprint.name + '_oauth_user_id'] != '':
query = query.filter_by(provider_user_id=session[blueprint.name + '_oauth_user_id'])
use_provider_user_id = True
if self.user_required and not u and not uid and not use_provider_user_id:
#raise ValueError("Cannot get OAuth token without an associated user")
return None
# check for user ID
if hasattr(self.model, "user_id") and uid:
query = query.filter_by(user_id=uid)
# check for user (relationship property)
elif hasattr(self.model, "user") and u:
query = query.filter_by(user=u)
# if we have the property, but not value, filter by None
elif hasattr(self.model, "user_id"):
query = query.filter_by(user_id=None)
# run query
try:
token = query.one().token
except NoResultFound:
token = None
# cache the result
self.cache.set(cache_key, token)
return token
def set(self, blueprint, token, user=None, user_id=None):
uid = first([user_id, self.user_id, blueprint.config.get("user_id")])
u = first(_get_real_user(ref, self.anon_user)
for ref in (user, self.user, blueprint.config.get("user")))
if self.user_required and not u and not uid:
raise ValueError("Cannot set OAuth token without an associated user")
# if there was an existing model, delete it
existing_query = (
self.session.query(self.model)
.filter_by(provider=blueprint.name)
)
# check for user ID
has_user_id = hasattr(self.model, "user_id")
if has_user_id and uid:
existing_query = existing_query.filter_by(user_id=uid)
# check for user (relationship property)
has_user = hasattr(self.model, "user")
if has_user and u:
existing_query = existing_query.filter_by(user=u)
# queue up delete query -- won't be run until commit()
existing_query.delete()
# create a new model for this token
kwargs = {
"provider": blueprint.name,
"token": token,
}
if has_user_id and uid:
kwargs["user_id"] = uid
if has_user and u:
kwargs["user"] = u
self.session.add(self.model(**kwargs))
# commit to delete and add simultaneously
self.session.commit()
# invalidate cache
self.cache.delete(self.make_cache_key(
blueprint=blueprint, user=user, user_id=user_id
))
def delete(self, blueprint, user=None, user_id=None):
query = (
self.session.query(self.model)
.filter_by(provider=blueprint.name)
)
uid = first([user_id, self.user_id, blueprint.config.get("user_id")])
u = first(_get_real_user(ref, self.anon_user)
for ref in (user, self.user, blueprint.config.get("user")))
if self.user_required and not u and not uid:
raise ValueError("Cannot delete OAuth token without an associated user")
# check for user ID
if hasattr(self.model, "user_id") and uid:
query = query.filter_by(user_id=uid)
# check for user (relationship property)
elif hasattr(self.model, "user") and u:
query = query.filter_by(user=u)
# if we have the property, but not value, filter by None
elif hasattr(self.model, "user_id"):
query = query.filter_by(user_id=None)
# run query
query.delete()
self.session.commit()
# invalidate cache
self.cache.delete(self.make_cache_key(
blueprint=blueprint, user=user, user_id=user_id,
))
except ImportError:
pass