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release: Finish preparation for 4.25.2
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rc_beaker.py
150 lines | 4.9 KiB | text/x-python | PythonLexer
# Copyright (c) 2010 Agendaless Consulting and Contributors.
# (http://www.agendaless.com), All Rights Reserved
# License: BSD-derived (http://www.repoze.org/LICENSE.txt)
# With Patches from RhodeCode GmBH
import os
from beaker import cache
from beaker.session import SessionObject
from beaker.util import coerce_cache_params
from beaker.util import coerce_session_params
from pyramid.interfaces import ISession
from pyramid.settings import asbool
from zope.interface import implementer
from binascii import hexlify
def BeakerSessionFactoryConfig(**options):
""" Return a Pyramid session factory using Beaker session settings
supplied directly as ``**options``"""
class PyramidBeakerSessionObject(SessionObject):
_options = options
_cookie_on_exception = _options.pop('cookie_on_exception', True)
_constant_csrf_token = _options.pop('constant_csrf_token', False)
def __init__(self, request):
SessionObject.__init__(self, request.environ, **self._options)
def session_callback(request, response):
exception = getattr(request, 'exception', None)
file_response = getattr(request, '_file_response', None)
if file_response is None \
and (exception is None or self._cookie_on_exception) \
and self.accessed():
self.persist()
headers = self.__dict__['_headers']
if headers.get('set_cookie') and headers.get('cookie_out'):
response.headerlist.append(('Set-Cookie', headers['cookie_out']))
request.add_response_callback(session_callback)
# ISession API
@property
def id(self):
# this is as inspected in SessionObject.__init__
if self.__dict__['_params'].get('type') != 'cookie':
return self._session().id
return None
@property
def new(self):
return self.last_accessed is None
changed = SessionObject.save
# modifying dictionary methods
@call_save
def clear(self):
return self._session().clear()
@call_save
def update(self, d, **kw):
return self._session().update(d, **kw)
@call_save
def setdefault(self, k, d=None):
return self._session().setdefault(k, d)
@call_save
def pop(self, k, d=None):
return self._session().pop(k, d)
@call_save
def popitem(self):
return self._session().popitem()
__setitem__ = call_save(SessionObject.__setitem__)
__delitem__ = call_save(SessionObject.__delitem__)
# Flash API methods
def flash(self, msg, queue='', allow_duplicate=True):
storage = self.setdefault('_f_' + queue, [])
if allow_duplicate or (msg not in storage):
storage.append(msg)
def pop_flash(self, queue=''):
storage = self.pop('_f_' + queue, [])
return storage
def peek_flash(self, queue=''):
storage = self.get('_f_' + queue, [])
return storage
# CSRF API methods
def new_csrf_token(self):
token = (self._constant_csrf_token
or hexlify(os.urandom(20)).decode('ascii'))
self['_csrft_'] = token
return token
def get_csrf_token(self):
token = self.get('_csrft_', None)
if token is None:
token = self.new_csrf_token()
return token
return implementer(ISession)(PyramidBeakerSessionObject)
def call_save(wrapped):
""" By default, in non-auto-mode beaker badly wants people to
call save even though it should know something has changed when
a mutating method is called. This hack should be removed if
Beaker ever starts to do this by default. """
def save(session, *arg, **kw):
value = wrapped(session, *arg, **kw)
session.save()
return value
save.__doc__ = wrapped.__doc__
return save
def session_factory_from_settings(settings):
""" Return a Pyramid session factory using Beaker session settings
supplied from a Paste configuration file"""
prefixes = ('session.', 'beaker.session.')
options = {}
# Pull out any config args meant for beaker session. if there are any
for k, v in settings.items():
for prefix in prefixes:
if k.startswith(prefix):
option_name = k[len(prefix):]
if option_name == 'cookie_on_exception':
v = asbool(v)
options[option_name] = v
options = coerce_session_params(options)
return BeakerSessionFactoryConfig(**options)
def includeme(config):
session_factory = session_factory_from_settings(config.registry.settings)
config.set_session_factory(session_factory)