Source code for flask_dance.contrib.heroku

from flask import g
from werkzeug.local import LocalProxy

from flask_dance.consumer import OAuth2ConsumerBlueprint
from flask_dance.consumer.requests import OAuth2Session

__maintainer__ = "David Baumgold <>"

class HerokuOAuth2Session(OAuth2Session):
    def __init__(self, api_version, *args, **kwargs):
        super().__init__(*args, **kwargs)
        accept = f"application/vnd.heroku+json; version={api_version}"
        self.headers["Accept"] = accept

[docs]def make_heroku_blueprint( client_id=None, client_secret=None, *, scope=None, api_version="3", redirect_url=None, redirect_to=None, login_url=None, authorized_url=None, session_class=None, storage=None, rule_kwargs=None, ): """ Make a blueprint for authenticating with Heroku using OAuth 2. This requires a client ID and client secret from Heroku. You should either pass them to this constructor, or make sure that your Flask application config defines them, using the variables :envvar:`HEROKU_OAUTH_CLIENT_ID` and :envvar:`HEROKU_OAUTH_CLIENT_SECRET`. Args: client_id (str): The client ID for your application on Heroku. client_secret (str): The client secret for your application on Heroku scope (str, optional): comma-separated list of scopes for the OAuth token api_version (str): The version number of the Heroku API you want to use. Defaults to version 3. 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 ``/heroku`` authorized_url (str, optional): the URL path for the ``authorized`` view. Defaults to ``/heroku/authorized``. session_class (class, optional): The class to use for creating a Requests session. Defaults to :class:`~flask_dance.contrib.HerokuOAuth2Session`. storage: A token storage class, or an instance of a token storage class, to use for this blueprint. Defaults to :class:``. 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. """ heroku_bp = OAuth2ConsumerBlueprint( "heroku", __name__, client_id=client_id, client_secret=client_secret, scope=scope, api_version=api_version, base_url="", authorization_url="", token_url="", redirect_url=redirect_url, redirect_to=redirect_to, login_url=login_url, authorized_url=authorized_url, session_class=session_class or HerokuOAuth2Session, storage=storage, rule_kwargs=rule_kwargs, ) heroku_bp.from_config["client_id"] = "HEROKU_OAUTH_CLIENT_ID" heroku_bp.from_config["client_secret"] = "HEROKU_OAUTH_CLIENT_SECRET" @heroku_bp.before_app_request def set_applocal_session(): g.flask_dance_heroku = heroku_bp.session return heroku_bp
heroku = LocalProxy(lambda: g.flask_dance_heroku)