source: main/waeup.sirp/trunk/src/waeup/sirp/browser/exceptions.py @ 6199

##
## exceptions.py
## Login : <uli@pu.smp.net>
## Started on  Sun May 22 18:28:46 2011 Uli Fouquet
## $Id$
## 
## Copyright (C) 2011 Uli Fouquet
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2 of the License, or
## (at your option) any later version.
## 
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
## GNU General Public License for more details.
## 
## You should have received a copy of the GNU General Public License
## along with this program; if not, write to the Free Software
## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
##
import grok
import zope.errorview.browser
from megrok.layout import Page
from zope.interface.common.interfaces import IException
from zope.publisher.interfaces import INotFound
from zope.security.interfaces import IUnauthorized
from waeup.sirp.browser.layout import SiteLayout, WAeUPPage
from waeup.sirp.interfaces import IWAeUPObject

grok.templatedir('templates')

class ExceptionLayout(SiteLayout):
    """ The general site layout.
    """
    grok.context(IException)
    grok.template('sitelayout')


#class ExceptionPage(WAeUPPage):
#    grok.context(IException)
#    grok.name('index.html')
#    grok.template('exception')
#
#    title = u'System Error'
#    pnav = 0
#
#    def update(self):
#        # XXX: That's merely bullshit. We cannot trust to have anything
#        # ready/setup if some arbitrary exception happens. Maybe we're
#        # better off with views instead pages here?
#        self.message = self.context.message
#        self.args = self.context.args
#        self.error_context = self.context
#        if not IWAeUPObject.providedBy(self.context):
#            self.context = self.context = getattr(
#                self.context, '__parent__', self.context)
#            self.context = self.context.context
#        return

class UnauthorizedView(grok.View, zope.errorview.browser.UnauthorizedView):
    """Base class for rendering views for IUnauthorized exceptions.

    Backport from grok 1.6. This is only a view (not a page) because
    we cannot trust that the associated :exc:`Unauthorized` exceptions
    happened inside a w.s. site.

    If not, then we have no layout available at time of rendering.

    XXX: This view is shared for all apps and objects in the ZODB root.
    """
    grok.context(IUnauthorized)
    grok.name('index.html')
    grok.template('unauthorized')

    def update(self):
        return zope.errorview.browser.UnauthorizedView.update(self)


class NotFoundPage(WAeUPPage):
    grok.context(INotFound)
    grok.name('index.html')
    grok.template('notfound')

    title = u'404: File Not Found'

    def update(self):
        try:
            self.context = self.context.getObject()
        except:
            pass
        self.response.setStatus(404)
        return