##############################################################################
#
# Copyright (c) 2004, 2005 Zope Foundation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""A 'PageTemplateFile' without security restrictions.
"""
from os.path import basename
from zope.component import getMultiAdapter
from zope.pagetemplate.pagetemplatefile import PageTemplateFile
from zope.pagetemplate.engine import TrustedAppPT
from Acquisition import aq_get
from AccessControl import getSecurityManager
from Products.PageTemplates.Expressions import SecureModuleImporter
from Products.PageTemplates.Expressions import createTrustedZopeEngine
from Products.Five.bbb import AcquisitionBBB
_engine = createTrustedZopeEngine()
def getEngine():
return _engine
class ViewPageTemplateFile(TrustedAppPT, PageTemplateFile):
"""Page Template used as class variable of views defined as Python classes.
"""
def __init__(self, filename, _prefix=None, content_type=None):
_prefix = self.get_path_from_prefix(_prefix)
super(ViewPageTemplateFile, self).__init__(filename, _prefix)
if content_type is not None:
self.content_type = content_type
def getId(self):
return basename(self.filename)
id = property(getId)
def __call__(self, __instance, *args, **keywords):
# Work around BBB foul. Before Zope 2.12 there was no first argument
# but the zope.pagetemplate version has one called instance. Some
# people used instance as an additional keyword argument.
instance = __instance
namespace = self.pt_getContext(
request=instance.request,
instance=instance, args=args, options=keywords)
debug_flags = instance.request.debug
s = self.pt_render(
namespace,
showtal=getattr(debug_flags, 'showTAL', 0),
sourceAnnotations=getattr(debug_flags, 'sourceAnnotations', 0),
)
response = instance.request.response
if not response.getHeader("Content-Type"):
response.setHeader("Content-Type", self.content_type)
return s
def pt_getEngine(self):
return getEngine()
def pt_getContext(self, instance, request, **kw):
namespace = super(ViewPageTemplateFile, self).pt_getContext(**kw)
namespace['request'] = request
namespace['view'] = instance
namespace['context'] = context = instance.context
namespace['views'] = ViewMapper(context, request)
# get the root
obj = context
root = None
meth = aq_get(obj, 'getPhysicalRoot', None)
if meth is not None:
root = meth()
namespace.update(here=obj,
# philiKON thinks container should be the view,
# but BBB is more important than aesthetics.
container=obj,
root=root,
modules=SecureModuleImporter,
traverse_subpath=[], # BBB, never really worked
user = getSecurityManager().getUser()
)
return namespace
def __get__(self, instance, type):
return BoundPageTemplate(self, instance)
class ViewMapper(object):
def __init__(self, ob, request):
self.ob = ob
self.request = request
def __getitem__(self, name):
return getMultiAdapter((self.ob, self.request), name=name)
# When a view's template is accessed e.g. as template.view, a
# BoundPageTemplate object is retured. For BBB reasons, it needs to
# support the aq_* methods and attributes known from Acquisition. For
# that it also needs to be locatable thru __parent__.
class BoundPageTemplate(AcquisitionBBB):
def __init__(self, pt, ob):
object.__setattr__(self, 'im_func', pt)
object.__setattr__(self, 'im_self', ob)
macros = property(lambda self: self.im_func.macros)
filename = property(lambda self: self.im_func.filename)
__parent__ = property(lambda self: self.im_self)
def __call__(self, *args, **kw):
if self.im_self is None:
im_self, args = args[0], args[1:]
else:
im_self = self.im_self
return self.im_func(im_self, *args, **kw)
def __setattr__(self, name, v):
raise AttributeError("Can't set attribute", name)
def __repr__(self):
return "<BoundPageTemplateFile of %r>" % self.im_self
# BBB
ZopeTwoPageTemplateFile = ViewPageTemplateFile
