Source code for flask_dance.contrib.facebook

from flask_dance.consumer import OAuth2ConsumerBlueprint
from functools import partial
from flask.globals import LocalProxy, _lookup_app_object

from flask import _app_ctx_stack as stack


__maintainer__ = "Matt Bachmann <bachmann.matt@gmail.com>"


[docs]def make_facebook_blueprint( client_id=None, client_secret=None, *, scope=None, redirect_url=None, redirect_to=None, login_url=None, authorized_url=None, rerequest_declined_permissions=False, session_class=None, storage=None, rule_kwargs=None, ): """ Make a blueprint for authenticating with Facebook using OAuth 2. This requires a client ID and client secret from Facebook. You should either pass them to this constructor, or make sure that your Flask application config defines them, using the variables :envvar:`FACEBOOK_OAUTH_CLIENT_ID` and :envvar:`FACEBOOK_OAUTH_CLIENT_SECRET`. Args: client_id (str): The client ID for your application on Facebook. client_secret (str): The client secret for your application on Facebook scope (str, optional): comma-separated list of scopes for the OAuth token redirect_url (str): the URL to redirect to after the authentication dance is complete redirect_to (str): if ``redirect_url`` is not defined, the name of the view to redirect to after the authentication dance is complete. The actual URL will be determined by :func:`flask.url_for` login_url (str, optional): the URL path for the ``login`` view. Defaults to ``/facebook`` authorized_url (str, optional): the URL path for the ``authorized`` view. Defaults to ``/facebook/authorized``. rerequest_declined_permissions (bool, optional): should the blueprint ask again for declined permissions. Defaults to ``False`` session_class (class, optional): The class to use for creating a Requests session. Defaults to :class:`~flask_dance.consumer.requests.OAuth2Session`. storage: A token storage class, or an instance of a token storage class, to use for this blueprint. Defaults to :class:`~flask_dance.consumer.storage.session.SessionStorage`. rule_kwargs (dict, optional): Additional arguments that should be passed when adding the login and authorized routes. Defaults to ``None``. :rtype: :class:`~flask_dance.consumer.OAuth2ConsumerBlueprint` :returns: A :doc:`blueprint <flask:blueprints>` to attach to your Flask app. """ authorization_url_params = {} if rerequest_declined_permissions: authorization_url_params["auth_type"] = "rerequest" facebook_bp = OAuth2ConsumerBlueprint( "facebook", __name__, client_id=client_id, client_secret=client_secret, scope=scope, base_url="https://graph.facebook.com/", authorization_url="https://www.facebook.com/dialog/oauth", authorization_url_params=authorization_url_params, token_url="https://graph.facebook.com/oauth/access_token", redirect_url=redirect_url, redirect_to=redirect_to, login_url=login_url, authorized_url=authorized_url, session_class=session_class, storage=storage, rule_kwargs=rule_kwargs, ) facebook_bp.from_config["client_id"] = "FACEBOOK_OAUTH_CLIENT_ID" facebook_bp.from_config["client_secret"] = "FACEBOOK_OAUTH_CLIENT_SECRET" @facebook_bp.before_app_request def set_applocal_session(): ctx = stack.top ctx.facebook_oauth = facebook_bp.session return facebook_bp
facebook = LocalProxy(partial(_lookup_app_object, "facebook_oauth"))