|
|
|
|
|
"""
|
|
|
Adapters
|
|
|
--------
|
|
|
|
|
|
.. contents::
|
|
|
:backlinks: none
|
|
|
|
|
|
The :func:`authomatic.login` function needs access to functionality like
|
|
|
getting the **URL** of the handler where it is being called, getting the
|
|
|
**request params** and **cookies** and **writing the body**, **headers**
|
|
|
and **status** to the response.
|
|
|
|
|
|
Since implementation of these features varies across Python web frameworks,
|
|
|
the Authomatic library uses **adapters** to unify these differences into a
|
|
|
single interface.
|
|
|
|
|
|
Available Adapters
|
|
|
^^^^^^^^^^^^^^^^^^
|
|
|
|
|
|
If you are missing an adapter for the framework of your choice, please
|
|
|
open an `enhancement issue <https://github.com/authomatic/authomatic/issues>`_
|
|
|
or consider a contribution to this module by
|
|
|
:ref:`implementing <implement_adapters>` one by yourself.
|
|
|
Its very easy and shouldn't take you more than a few minutes.
|
|
|
|
|
|
.. autoclass:: DjangoAdapter
|
|
|
:members:
|
|
|
|
|
|
.. autoclass:: Webapp2Adapter
|
|
|
:members:
|
|
|
|
|
|
.. autoclass:: WebObAdapter
|
|
|
:members:
|
|
|
|
|
|
.. autoclass:: WerkzeugAdapter
|
|
|
:members:
|
|
|
|
|
|
.. _implement_adapters:
|
|
|
|
|
|
Implementing an Adapter
|
|
|
^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
|
Implementing an adapter for a Python web framework is pretty easy.
|
|
|
|
|
|
Do it by subclassing the :class:`.BaseAdapter` abstract class.
|
|
|
There are only **six** members that you need to implement.
|
|
|
|
|
|
Moreover if your framework is based on the |webob|_ or |werkzeug|_ package
|
|
|
you can subclass the :class:`.WebObAdapter` or :class:`.WerkzeugAdapter`
|
|
|
respectively.
|
|
|
|
|
|
.. autoclass:: BaseAdapter
|
|
|
:members:
|
|
|
|
|
|
"""
|
|
|
|
|
|
import abc
|
|
|
from authomatic.core import Response
|
|
|
|
|
|
|
|
|
class BaseAdapter(object, metaclass=abc.ABCMeta):
|
|
|
"""
|
|
|
Base class for platform adapters.
|
|
|
|
|
|
Defines common interface for WSGI framework specific functionality.
|
|
|
|
|
|
"""
|
|
|
|
|
|
@abc.abstractproperty
|
|
|
def params(self):
|
|
|
"""
|
|
|
Must return a :class:`dict` of all request parameters of any HTTP
|
|
|
method.
|
|
|
|
|
|
:returns:
|
|
|
:class:`dict`
|
|
|
|
|
|
"""
|
|
|
|
|
|
@abc.abstractproperty
|
|
|
def url(self):
|
|
|
"""
|
|
|
Must return the url of the actual request including path but without
|
|
|
query and fragment.
|
|
|
|
|
|
:returns:
|
|
|
:class:`str`
|
|
|
|
|
|
"""
|
|
|
|
|
|
@abc.abstractproperty
|
|
|
def cookies(self):
|
|
|
"""
|
|
|
Must return cookies as a :class:`dict`.
|
|
|
|
|
|
:returns:
|
|
|
:class:`dict`
|
|
|
|
|
|
"""
|
|
|
|
|
|
@abc.abstractmethod
|
|
|
def write(self, value):
|
|
|
"""
|
|
|
Must write specified value to response.
|
|
|
|
|
|
:param str value:
|
|
|
String to be written to response.
|
|
|
|
|
|
"""
|
|
|
|
|
|
@abc.abstractmethod
|
|
|
def set_header(self, key, value):
|
|
|
"""
|
|
|
Must set response headers to ``Key: value``.
|
|
|
|
|
|
:param str key:
|
|
|
Header name.
|
|
|
|
|
|
:param str value:
|
|
|
Header value.
|
|
|
|
|
|
"""
|
|
|
|
|
|
@abc.abstractmethod
|
|
|
def set_status(self, status):
|
|
|
"""
|
|
|
Must set the response status e.g. ``'302 Found'``.
|
|
|
|
|
|
:param str status:
|
|
|
The HTTP response status.
|
|
|
|
|
|
"""
|
|
|
|
|
|
|
|
|
class DjangoAdapter(BaseAdapter):
|
|
|
"""
|
|
|
Adapter for the |django|_ framework.
|
|
|
"""
|
|
|
|
|
|
def __init__(self, request, response):
|
|
|
"""
|
|
|
:param request:
|
|
|
An instance of the :class:`django.http.HttpRequest` class.
|
|
|
|
|
|
:param response:
|
|
|
An instance of the :class:`django.http.HttpResponse` class.
|
|
|
"""
|
|
|
self.request = request
|
|
|
self.response = response
|
|
|
|
|
|
@property
|
|
|
def params(self):
|
|
|
params = {}
|
|
|
params.update(self.request.GET.dict())
|
|
|
params.update(self.request.POST.dict())
|
|
|
return params
|
|
|
|
|
|
@property
|
|
|
def url(self):
|
|
|
return self.request.build_absolute_uri(self.request.path)
|
|
|
|
|
|
@property
|
|
|
def cookies(self):
|
|
|
return dict(self.request.COOKIES)
|
|
|
|
|
|
def write(self, value):
|
|
|
self.response.write(value)
|
|
|
|
|
|
def set_header(self, key, value):
|
|
|
self.response[key] = value
|
|
|
|
|
|
def set_status(self, status):
|
|
|
status_code, reason = status.split(' ', 1)
|
|
|
self.response.status_code = int(status_code)
|
|
|
|
|
|
|
|
|
class WebObAdapter(BaseAdapter):
|
|
|
"""
|
|
|
Adapter for the |webob|_ package.
|
|
|
"""
|
|
|
|
|
|
def __init__(self, request, response):
|
|
|
"""
|
|
|
:param request:
|
|
|
A |webob|_ :class:`Request` instance.
|
|
|
|
|
|
:param response:
|
|
|
A |webob|_ :class:`Response` instance.
|
|
|
"""
|
|
|
self.request = request
|
|
|
self.response = response
|
|
|
|
|
|
# =========================================================================
|
|
|
# Request
|
|
|
# =========================================================================
|
|
|
|
|
|
@property
|
|
|
def url(self):
|
|
|
return self.request.path_url
|
|
|
|
|
|
@property
|
|
|
def params(self):
|
|
|
return dict(self.request.params)
|
|
|
|
|
|
@property
|
|
|
def cookies(self):
|
|
|
return dict(self.request.cookies)
|
|
|
|
|
|
# =========================================================================
|
|
|
# Response
|
|
|
# =========================================================================
|
|
|
|
|
|
def write(self, value):
|
|
|
self.response.write(value)
|
|
|
|
|
|
def set_header(self, key, value):
|
|
|
self.response.headers[key] = str(value)
|
|
|
|
|
|
def set_status(self, status):
|
|
|
self.response.status = status
|
|
|
|
|
|
|
|
|
class Webapp2Adapter(WebObAdapter):
|
|
|
"""
|
|
|
Adapter for the |webapp2|_ framework.
|
|
|
|
|
|
Inherits from the :class:`.WebObAdapter`.
|
|
|
|
|
|
"""
|
|
|
|
|
|
def __init__(self, handler):
|
|
|
"""
|
|
|
:param handler:
|
|
|
A :class:`webapp2.RequestHandler` instance.
|
|
|
"""
|
|
|
self.request = handler.request
|
|
|
self.response = handler.response
|
|
|
|
|
|
|
|
|
class WerkzeugAdapter(BaseAdapter):
|
|
|
"""
|
|
|
Adapter for |flask|_ and other |werkzeug|_ based frameworks.
|
|
|
|
|
|
Thanks to `Mark Steve Samson <http://marksteve.com>`_.
|
|
|
|
|
|
"""
|
|
|
|
|
|
@property
|
|
|
def params(self):
|
|
|
return self.request.args
|
|
|
|
|
|
@property
|
|
|
def url(self):
|
|
|
return self.request.base_url
|
|
|
|
|
|
@property
|
|
|
def cookies(self):
|
|
|
return self.request.cookies
|
|
|
|
|
|
def __init__(self, request, response):
|
|
|
"""
|
|
|
:param request:
|
|
|
Instance of the :class:`werkzeug.wrappers.Request` class.
|
|
|
|
|
|
:param response:
|
|
|
Instance of the :class:`werkzeug.wrappers.Response` class.
|
|
|
"""
|
|
|
|
|
|
self.request = request
|
|
|
self.response = response
|
|
|
|
|
|
def write(self, value):
|
|
|
#self.response.data = self.response.data.decode('utf-8') + value
|
|
|
self.response.data = self.response.data + value
|
|
|
|
|
|
def set_header(self, key, value):
|
|
|
self.response.headers[key] = value
|
|
|
|
|
|
def set_status(self, status):
|
|
|
self.response.status = status
|
|
|
|
