From b606d97195187bdb33e334a7a40df501b30e2f48 Mon Sep 17 00:00:00 2001
From: Chris McDonough <chrism@agendaless.com>
Date: Fri, 19 Jun 2009 09:24:49 +0000
Subject: - A new ZCML directive was added named ``notfound``.  This ZCML  
 directive can be used to name a view that should be invoked when the  
 request can't otherwise be resolved to a view callable.  For example::

    <notfound
        view="helloworld.views.notfound_view"/>

- A new ZCML directive was added named ``forbidden``.  This ZCML
  directive can be used to name a view that should be invoked when a
  view callable for a request is found, but cannot be invoked due to
  an authorization failure.  For example::

   <forbidden
       view="helloworld.views.forbidden_view"/>
---
 repoze/bfg/zcml.py | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

(limited to 'repoze/bfg/zcml.py')

diff --git a/repoze/bfg/zcml.py b/repoze/bfg/zcml.py
index e53a359da..1b66839d6 100644
--- a/repoze/bfg/zcml.py
+++ b/repoze/bfg/zcml.py
@@ -20,6 +20,8 @@ from zope.schema import TextLine
 
 from repoze.bfg.interfaces import IRoutesMapper
 from repoze.bfg.interfaces import IViewPermission
+from repoze.bfg.interfaces import INotFoundView
+from repoze.bfg.interfaces import IForbiddenView
 from repoze.bfg.interfaces import IView
 
 from repoze.bfg.request import DEFAULT_REQUEST_FACTORIES
@@ -84,6 +86,20 @@ def view(
                 derived_view, (for_, request_type), IView, name, _context.info),
         )
 
+def view_utility(_context, view, iface):
+    derived_view = derive_view(view)
+    _context.action(
+        discriminator = ('notfound_view',),
+        callable = handler,
+        args = ('registerUtility', derived_view, iface, '', _context.info),
+        )
+
+def notfound(_context, view):
+    view_utility(_context, view, INotFoundView)
+
+def forbidden(_context, view):
+    view_utility(_context, view, IForbiddenView)
+
 def derive_view(view):
     derived_view = view
     if inspect.isclass(view):
@@ -316,6 +332,20 @@ class IViewDirective(Interface):
         title = u'The route that must match for this view to be used',
         required = False)
 
+class INotFoundViewDirective(Interface):
+    view = GlobalObject(
+        title=u"",
+        description=u"The notfound view callable",
+        required=True,
+        )
+
+class IForbiddenViewDirective(Interface):
+    view = GlobalObject(
+        title=u"",
+        description=u"The forbidden view callable",
+        required=True,
+        )
+
 class IRouteRequirementDirective(Interface):
     """ The interface for the ``requirement`` route subdirective """
     attr = TextLine(title=u'attr', required=True)
-- 
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