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@ -19,7 +19,6 @@
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from __future__ import division, print_function, unicode_literals
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from flask import session
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try:
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from flask_dance.consumer.backend.sqla import SQLAlchemyBackend, first, _get_real_user
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from sqlalchemy.orm.exc import NoResultFound
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@ -34,134 +33,131 @@ except ImportError:
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except ImportError:
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pass
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try:
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class OAuthBackend(SQLAlchemyBackend):
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"""
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Stores and retrieves OAuth tokens using a relational database through
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the `SQLAlchemy`_ ORM.
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.. _SQLAlchemy: https://www.sqlalchemy.org/
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"""
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def __init__(self, model, session, provider_id,
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user=None, user_id=None, user_required=None, anon_user=None,
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cache=None):
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self.provider_id = provider_id
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super(OAuthBackend, self).__init__(model, session, user, user_id, user_required, anon_user, cache)
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def get(self, blueprint, user=None, user_id=None):
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if self.provider_id + '_oauth_token' in session and session[self.provider_id + '_oauth_token'] != '':
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return session[self.provider_id + '_oauth_token']
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# check cache
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cache_key = self.make_cache_key(blueprint=blueprint, user=user, user_id=user_id)
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token = self.cache.get(cache_key)
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if token:
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return token
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# if not cached, make database queries
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query = (
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self.session.query(self.model)
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.filter_by(provider=self.provider_id)
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)
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uid = first([user_id, self.user_id, blueprint.config.get("user_id")])
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u = first(_get_real_user(ref, self.anon_user)
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for ref in (user, self.user, blueprint.config.get("user")))
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use_provider_user_id = False
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if self.provider_id + '_oauth_user_id' in session and session[self.provider_id + '_oauth_user_id'] != '':
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query = query.filter_by(provider_user_id=session[self.provider_id + '_oauth_user_id'])
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use_provider_user_id = True
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if self.user_required and not u and not uid and not use_provider_user_id:
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# raise ValueError("Cannot get OAuth token without an associated user")
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return None
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# check for user ID
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if hasattr(self.model, "user_id") and uid:
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query = query.filter_by(user_id=uid)
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# check for user (relationship property)
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elif hasattr(self.model, "user") and u:
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query = query.filter_by(user=u)
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# if we have the property, but not value, filter by None
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elif hasattr(self.model, "user_id"):
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query = query.filter_by(user_id=None)
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# run query
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try:
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token = query.one().token
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except NoResultFound:
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token = None
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# cache the result
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self.cache.set(cache_key, token)
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class OAuthBackend(SQLAlchemyBackend):
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"""
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Stores and retrieves OAuth tokens using a relational database through
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the `SQLAlchemy`_ ORM.
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.. _SQLAlchemy: https://www.sqlalchemy.org/
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"""
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def __init__(self, model, session, provider_id,
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user=None, user_id=None, user_required=None, anon_user=None,
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cache=None):
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self.provider_id = provider_id
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super(OAuthBackend, self).__init__(model, session, user, user_id, user_required, anon_user, cache)
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def get(self, blueprint, user=None, user_id=None):
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if self.provider_id + '_oauth_token' in session and session[self.provider_id + '_oauth_token'] != '':
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return session[self.provider_id + '_oauth_token']
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# check cache
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cache_key = self.make_cache_key(blueprint=blueprint, user=user, user_id=user_id)
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token = self.cache.get(cache_key)
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if token:
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return token
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def set(self, blueprint, token, user=None, user_id=None):
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uid = first([user_id, self.user_id, blueprint.config.get("user_id")])
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u = first(_get_real_user(ref, self.anon_user)
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for ref in (user, self.user, blueprint.config.get("user")))
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if self.user_required and not u and not uid:
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raise ValueError("Cannot set OAuth token without an associated user")
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# if there was an existing model, delete it
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existing_query = (
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self.session.query(self.model)
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.filter_by(provider=self.provider_id)
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)
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# check for user ID
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has_user_id = hasattr(self.model, "user_id")
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if has_user_id and uid:
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existing_query = existing_query.filter_by(user_id=uid)
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# check for user (relationship property)
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has_user = hasattr(self.model, "user")
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if has_user and u:
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existing_query = existing_query.filter_by(user=u)
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# queue up delete query -- won't be run until commit()
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existing_query.delete()
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# create a new model for this token
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kwargs = {
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"provider": self.provider_id,
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"token": token,
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}
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if has_user_id and uid:
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kwargs["user_id"] = uid
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if has_user and u:
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kwargs["user"] = u
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self.session.add(self.model(**kwargs))
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# commit to delete and add simultaneously
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self.session.commit()
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# invalidate cache
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self.cache.delete(self.make_cache_key(
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blueprint=blueprint, user=user, user_id=user_id
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))
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def delete(self, blueprint, user=None, user_id=None):
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query = (
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self.session.query(self.model)
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.filter_by(provider=self.provider_id)
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)
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uid = first([user_id, self.user_id, blueprint.config.get("user_id")])
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u = first(_get_real_user(ref, self.anon_user)
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for ref in (user, self.user, blueprint.config.get("user")))
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if self.user_required and not u and not uid:
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raise ValueError("Cannot delete OAuth token without an associated user")
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# check for user ID
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if hasattr(self.model, "user_id") and uid:
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query = query.filter_by(user_id=uid)
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# check for user (relationship property)
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elif hasattr(self.model, "user") and u:
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query = query.filter_by(user=u)
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# if we have the property, but not value, filter by None
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elif hasattr(self.model, "user_id"):
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query = query.filter_by(user_id=None)
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# run query
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query.delete()
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self.session.commit()
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# invalidate cache
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self.cache.delete(self.make_cache_key(
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blueprint=blueprint, user=user, user_id=user_id,
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))
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except Exception:
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pass
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# if not cached, make database queries
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query = (
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self.session.query(self.model)
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.filter_by(provider=self.provider_id)
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)
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uid = first([user_id, self.user_id, blueprint.config.get("user_id")])
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u = first(_get_real_user(ref, self.anon_user)
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for ref in (user, self.user, blueprint.config.get("user")))
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use_provider_user_id = False
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if self.provider_id + '_oauth_user_id' in session and session[self.provider_id + '_oauth_user_id'] != '':
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query = query.filter_by(provider_user_id=session[self.provider_id + '_oauth_user_id'])
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use_provider_user_id = True
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if self.user_required and not u and not uid and not use_provider_user_id:
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# raise ValueError("Cannot get OAuth token without an associated user")
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return None
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# check for user ID
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if hasattr(self.model, "user_id") and uid:
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query = query.filter_by(user_id=uid)
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# check for user (relationship property)
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elif hasattr(self.model, "user") and u:
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query = query.filter_by(user=u)
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# if we have the property, but not value, filter by None
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elif hasattr(self.model, "user_id"):
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query = query.filter_by(user_id=None)
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# run query
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try:
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token = query.one().token
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except NoResultFound:
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token = None
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# cache the result
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self.cache.set(cache_key, token)
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return token
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def set(self, blueprint, token, user=None, user_id=None):
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uid = first([user_id, self.user_id, blueprint.config.get("user_id")])
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u = first(_get_real_user(ref, self.anon_user)
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for ref in (user, self.user, blueprint.config.get("user")))
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if self.user_required and not u and not uid:
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raise ValueError("Cannot set OAuth token without an associated user")
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# if there was an existing model, delete it
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existing_query = (
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self.session.query(self.model)
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.filter_by(provider=self.provider_id)
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)
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# check for user ID
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has_user_id = hasattr(self.model, "user_id")
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if has_user_id and uid:
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existing_query = existing_query.filter_by(user_id=uid)
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# check for user (relationship property)
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has_user = hasattr(self.model, "user")
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if has_user and u:
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existing_query = existing_query.filter_by(user=u)
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# queue up delete query -- won't be run until commit()
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existing_query.delete()
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# create a new model for this token
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kwargs = {
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"provider": self.provider_id,
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"token": token,
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}
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if has_user_id and uid:
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kwargs["user_id"] = uid
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if has_user and u:
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kwargs["user"] = u
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self.session.add(self.model(**kwargs))
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# commit to delete and add simultaneously
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self.session.commit()
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# invalidate cache
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self.cache.delete(self.make_cache_key(
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blueprint=blueprint, user=user, user_id=user_id
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))
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def delete(self, blueprint, user=None, user_id=None):
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query = (
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self.session.query(self.model)
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.filter_by(provider=self.provider_id)
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)
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uid = first([user_id, self.user_id, blueprint.config.get("user_id")])
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u = first(_get_real_user(ref, self.anon_user)
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for ref in (user, self.user, blueprint.config.get("user")))
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if self.user_required and not u and not uid:
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raise ValueError("Cannot delete OAuth token without an associated user")
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# check for user ID
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if hasattr(self.model, "user_id") and uid:
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query = query.filter_by(user_id=uid)
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# check for user (relationship property)
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elif hasattr(self.model, "user") and u:
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query = query.filter_by(user=u)
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# if we have the property, but not value, filter by None
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elif hasattr(self.model, "user_id"):
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query = query.filter_by(user_id=None)
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# run query
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query.delete()
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self.session.commit()
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# invalidate cache
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self.cache.delete(self.make_cache_key(
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blueprint=blueprint, user=user, user_id=user_id,
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))
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Ozzie Isaacs
3 years ago