def __before_publishing_traverse__(self, arg1, arg2=None):
""" Pre-traversal hook.
"""
# XXX hack around a bug(?) in BeforeTraverse.MultiHook
REQUEST = arg2 or arg1
notify(BeforeTraverseEvent(self, REQUEST))
if REQUEST['REQUEST_METHOD'] not in ('GET', 'POST'):
return
stack = REQUEST['TraversalRequestNameStack']
key = stack and stack[-1] or '(Default)'
# if there's a Zope3-style default view name set and the
# corresponding view exists, take that in favour of the FTI's
# default view
if key == '(Default)':
viewname = queryDefaultViewName(self, REQUEST)
if (viewname and queryMultiAdapter(
(self, REQUEST), name=viewname) is not None):
stack.append(viewname)
REQUEST._hacked_path = 1
return
ti = self.getTypeInfo()
method_id = ti and ti.queryMethodID(key, context=self)
if method_id:
if key != '(Default)':
stack.pop()
if method_id != '(Default)':
stack.append(method_id)
REQUEST._hacked_path = 1
def __before_publishing_traverse__(self, arg1, arg2=None):
""" Pre-traversal hook.
"""
# XXX hack around a bug(?) in BeforeTraverse.MultiHook
REQUEST = arg2 or arg1
if REQUEST['REQUEST_METHOD'] not in ('GET', 'POST'):
return
stack = REQUEST['TraversalRequestNameStack']
key = stack and stack[-1] or '(Default)'
# if there's a Zope3-style default view name set and the
# corresponding view exists, take that in favour of the FTI's
# default view
if key == '(Default)':
viewname = queryDefaultViewName(self, REQUEST)
if (viewname and
queryMultiAdapter((self, REQUEST), name=viewname) is not None):
stack.append(viewname)
REQUEST._hacked_path = 1
return
ti = self.getTypeInfo()
method_id = ti and ti.queryMethodID(key, context=self)
if method_id:
if key != '(Default)':
stack.pop()
if method_id != '(Default)':
stack.append(method_id)
REQUEST._hacked_path = 1
def handleException(self, object, request, exc_info, retry_allowed=True):
transaction.abort()
# TODO handle Retry, ConflictError, etc.
# TODO handle logging
exception_type, exception, traceback = exc_info
loc = object
if Acquisition.aq_parent(object) is None:
# Try to get an object, since we apparently have a method
# Note: We are guaranteed that an object has a location,
# so just getting the instance the method belongs to is
# sufficient.
loc = getattr(loc, 'im_self', loc)
loc = getattr(loc, '__self__', loc)
# Give the exception instance its location and look up the
# view.
exception = LocationProxy(exception, loc, '')
name = queryDefaultViewName(exception, request)
if name is not None:
# TODO annotate the transaction
view = queryMultiAdapter((exception, request), name=name)
if view is not None:
# XXX should we use mapply here?
body = self.callObject(request, view)
request.response.setResult(body)
transaction.commit()
else:
# This is the last resort. We shouldn't get here, but
# in case we do, we have to set the result to something.
request.response.setStatus(500)
request.response.setResult('An error occurred.')
def add_container_menu_items(self, context, container):
request = self.request
# add a menu item for each user workspace, if we are in an
# IWorkspaceSectionLayer
# !+ if user is logged in or if request.layer_data
if (interfaces.IWorkspaceSectionLayer.providedBy(request)
or interfaces.IWorkspaceSchedulingSectionLayer.providedBy(
request)):
try:
workspaces = IAnnotations(request)["layer_data"].get(
"workspaces")
except:
workspaces = []
log.info("%s got user workspaces: %s" % (self, workspaces))
base_url_path = "/workspace"
for workspace in workspaces:
log.info("appending menu item for user workspace: %s" %
str(workspace))
self.items.append(
url.get_menu_item_descriptor(
workspace.full_name,
pos_action_in_url(
"/workspace/obj-%s" % workspace.group_id,
request.getURL()), base_url_path,
"obj-%s" % workspace.group_id))
_url = url.absoluteURL(container, request)
if IReadContainer.providedBy(container):
#XXX should be the same in all containers ?
container = proxy.removeSecurityProxy(container)
for name, item in container.items():
if context is None:
selected = False
else:
selected = url.same_path_names(context.__name__, name)
item = proxy.removeSecurityProxy(item)
if IDCDescriptiveProperties.providedBy(item):
title = item.title
else:
props = IDCDescriptiveProperties(item)
title = props.title
# only items with valid title
if title is not None:
self.items.append(
url.get_menu_item_descriptor(title, selected, _url,
name))
default_view_name = queryDefaultViewName(container, self.request)
default_view = component.queryMultiAdapter((container, self.request),
name=default_view_name)
if hasattr(default_view, "title") and default_view.title is not None:
self.items.insert(
0,
url.get_menu_item_descriptor(
default_view.title,
sameProxiedObjects(container, self.context), _url))
def add_container_menu_items(self, context, container):
request = self.request
# add a menu item for each user workspace, if we are in an
# IWorkspaceSectionLayer
# !+ if user is logged in or if request.layer_data
if interfaces.IWorkspaceSectionLayer.providedBy(request):
try:
workspaces = IAnnotations(request)["layer_data"].get(
"workspaces")
except:
workspaces = []
log.info("%s got user workspaces: %s" % (self, workspaces))
base_url_path = "/workspace"
for workspace in workspaces:
log.info("appending menu item for user workspace: %s" %
str(workspace))
self.items.append(
url.get_menu_item_descriptor(
workspace.full_name,
pos_action_in_url(
"/workspace/obj-%s" % workspace.group_id,
request.getURL()), base_url_path,
"obj-%s" % workspace.group_id))
_url = url.absoluteURL(container, request)
if IReadContainer.providedBy(container):
#XXX should be the same in all containers ?
container = proxy.removeSecurityProxy(container)
for name, item in container.items():
if context is None:
selected = False
else:
selected = url.same_path_names(context.__name__, name)
item = proxy.removeSecurityProxy(item)
if IDCDescriptiveProperties.providedBy(item):
title = item.title
else:
props = IDCDescriptiveProperties(item)
title = props.title
# only items with valid title
if title is not None:
self.items.append(
url.get_menu_item_descriptor(title, selected, _url,
name))
default_view_name = queryDefaultViewName(container, self.request)
default_view = component.queryMultiAdapter((container, self.request),
name=default_view_name)
if hasattr(default_view, "title") and default_view.title is not None:
self.items.insert(
0,
url.get_menu_item_descriptor(
default_view.title,
sameProxiedObjects(container, self.context), _url))
def browserDefault(self, request):
if hasattr(self.context, '__browser_default__'):
return self.context.__browser_default__(request)
# Zope 3.2 still uses IDefaultView name when it
# registeres default views, even though it's
# deprecated. So we handle that here:
default_name = queryDefaultViewName(self.context, request)
if default_name is not None:
# Adding '@@' here forces this to be a view.
# A neater solution might be desireable.
return self.context, ('@@' + default_name, )
return self.context, ()
def browserDefault(self, request):
# Support for old __browser_default__
if hasattr(self.context, '__browser_default__'):
return self.context.__browser_default__(request)
# If there's a default view name set and the view for this
# default view exists, we'll use that.
default_name = queryDefaultViewName(self.context, request)
if (default_name is not None and queryMultiAdapter(
(self.context, request), name=default_name) is not None):
# Adding '@@' here forces this to be a view.
# A neater solution might be desireable.
return self.context, ('@@' + default_name, )
# Otherwise it's index_html...
if getattr(self.context, 'index_html', None) is not None:
return self.context, ('index_html', )
# ... before __call__.
return self.context, ()
def add_zcml_menu_items(self, container):
"""Add the list of ZCML menu items (if any) for this top-level
container. Top-level section given by container may define a menu
in ZCML with naming convention: <container_name>_navigation.
"""
# !+ turn this into a utility
zcml_menu_name_template = "%s_navigation"
try:
menu_name = zcml_menu_name_template % container.__name__
menu = component.getUtility(IBrowserMenu, name=menu_name)
items = menu.getMenuItems(container, self.request)
except (Exception, ):
debug.log_exc(sys.exc_info(), log_handler=log.debug)
return []
# OK, do any necessary post-processing of each menu item
local_url = url.absoluteURL(container, self.request)
site_url = url.absoluteURL(getSite(), self.request)
request_url = self.request.getURL()
default_view_name = queryDefaultViewName(container, self.request)
selection = None
for item in sorted(items,
key=lambda item: item['action'],
reverse=True):
action = item['action']
if default_view_name == action.lstrip('@@'):
_url = local_url
if selection is None:
selected = sameProxiedObjects(container, self.context)
else:
_url = make_absolute(action, local_url, site_url)
if selection is None:
selected = pos_action_in_url(action, request_url)
item['url'] = _url
item['selected'] = selected and u'selected' or u''
if selected:
# self is marker
selection = self
selected = False
self.items.append(item)
def add_zcml_menu_items(self, container):
"""Add the list of ZCML menu items (if any) for this top-level
container. Top-level section given by container may define a menu
in ZCML with naming convention: <container_name>_navigation.
"""
# !+ turn this into a utility
zcml_menu_name_template = "%s_navigation"
try:
menu_name = zcml_menu_name_template % container.__name__
menu = component.getUtility(IBrowserMenu, name=menu_name)
items = menu.getMenuItems(container, self.request)
except (Exception, ):
debug.log_exc(sys.exc_info(), log_handler=log.debug)
return []
# OK, do any necessary post-processing of each menu item
local_url = url.absoluteURL(container, self.request)
site_url = url.absoluteURL(getSite(), self.request)
request_url = self.request.getURL()
default_view_name = queryDefaultViewName(container, self.request)
selection = None
for item in sorted(
items, key=lambda item: item['action'], reverse=True):
action = item['action']
if default_view_name == action.lstrip('@@'):
_url = local_url
if selection is None:
selected = sameProxiedObjects(container, self.context)
else:
_url = make_absolute(action, local_url, site_url)
if selection is None:
selected = pos_action_in_url(action, request_url)
item['url'] = _url
item['selected'] = selected and u'selected' or u''
if selected:
# self is marker
selection = self
selected = False
self.items.append(item)
def handleException(self, object, request, exc_info, retry_allowed=True):
#orig = removeAllProxies(object)
transaction.abort()
if retry_allowed and isinstance(exc_info[1], Retry):
raise
if retry_allowed and isinstance(exc_info[1], ConflictError):
tryToLogWarning(
'ZopePublication',
'Competing writes/reads at %s: %s'
% (request.get('PATH_INFO', '???'),
exc_info[1],
),
)
raise Retry(exc_info)
self._logErrorWithErrorReportingUtility(object, request, exc_info)
response = request.response
response.reset()
exception = None
legacy_exception = not isinstance(exc_info[1], Exception)
if legacy_exception:
response.handleException(exc_info)
if isinstance(exc_info[1], str):
tryToLogWarning(
'Publisher received a legacy string exception: %s.'
' This will be handled by the request.' %
exc_info[1])
else:
tryToLogWarning(
'Publisher received a legacy classic class exception: %s.'
' This will be handled by the request.' %
exc_info[1].__class__)
else:
self.beginErrorHandlingTransaction(
request, object, 'application error-handling')
view = None
try:
loc = object
if not hasattr(object, '__parent__'):
loc = removeSecurityProxy(object)
loc = getattr(loc, 'im_self', loc)
loc = getattr(loc, '__self__', loc)
loc = ProxyFactory(loc)
exception = LocationProxy(exc_info[1], loc, '')
name = queryDefaultViewName(exception, request)
if name is not None:
view = queryMultiAdapter(
(exception, request), name=name)
except:
tryToLogException('Exception while getting view on exception')
if view is not None:
try:
body = mapply(view, (), request)
response.setResult(body)
transaction.commit()
if (ISystemErrorView.providedBy(view)
and view.isSystemError()):
try:
raise exc_info[0], exc_info[1], exc_info[2]
except:
logging.getLogger('SiteError').exception(
str(request.URL),
)
except ReadOnlyError:
transaction.abort()
except:
tryToLogException('Exception while rendering view on exception')
self._logErrorWithErrorReportingUtility(
object, request, sys.exc_info())
view = None
if view is None:
response.handleException(exc_info)
transaction.abort()
try:
adapter = IExceptionSideEffects(exception, None)
except:
tryToLogException(
'Exception while getting IExceptionSideEffects adapter')
adapter = None
if adapter is not None:
self.beginErrorHandlingTransaction(
request, object, 'application error-handling side-effect')
try:
adapter(object, request, exc_info)
transaction.commit()
except ReadOnlyError:
transaction.abort()
except:
tryToLogException('Exception while calling'
' IExceptionSideEffects adapter')
transaction.abort()
def queryDefaultView(context, request):
name = queryDefaultViewName(context, request, None)
if name:
view = queryMultiAdapter((context, request), name=name)
if IPagelet.providedBy(view):
return view
def handleException(self, object, request, exc_info, retry_allowed=True):
# This transaction had an exception that reached the publisher.
# It must definitely be aborted.
transaction.abort()
# Reraise Retry exceptions for the publisher to deal with.
if retry_allowed and isinstance(exc_info[1], Retry):
raise
# Convert ConflictErrors to Retry exceptions.
if retry_allowed and isinstance(exc_info[1], ConflictError):
tryToLogWarning(
'ZopePublication',
'Competing writes/reads at %s: %s' % (
request.get('PATH_INFO', '???'),
exc_info[1],
),
)
raise Retry(exc_info)
# Are there any reasons why we'd want to let application-level error
# handling determine whether a retry is allowed or not?
# Assume not for now.
# Record the error with the ErrorReportingUtility
self._logErrorWithErrorReportingUtility(object, request, exc_info)
response = request.response
response.reset()
exception = None
legacy_exception = not isinstance(exc_info[1], Exception)
if legacy_exception:
response.handleException(exc_info)
if isinstance(exc_info[1], str):
tryToLogWarning(
'Publisher received a legacy string exception: %s.'
' This will be handled by the request.' % exc_info[1])
else:
tryToLogWarning(
'Publisher received a legacy classic class exception: %s.'
' This will be handled by the request.' %
exc_info[1].__class__)
else:
# We definitely have an Exception
# Set the request body, and abort the current transaction.
self.beginErrorHandlingTransaction(request, object,
'application error-handling')
view = None
try:
# We need to get a location, because some template content of
# the exception view might require one.
#
# The object might not have a parent, because it might be a
# method. If we don't have a `__parent__` attribute but have
# an im_self or a __self__, use it.
loc = object
if not hasattr(object, '__parent__'):
loc = removeSecurityProxy(object)
# Try to get an object, since we apparently have a method
# Note: We are guaranteed that an object has a location,
# so just getting the instance the method belongs to is
# sufficient.
loc = getattr(loc, 'im_self', loc)
loc = getattr(loc, '__self__', loc)
# Protect the location with a security proxy
loc = ProxyFactory(loc)
# Give the exception instance its location and look up the
# view.
exception = LocationProxy(exc_info[1], loc, '')
name = queryDefaultViewName(exception, request)
if name is not None:
view = zope.component.queryMultiAdapter(
(exception, request), name=name)
except:
# Problem getting a view for this exception. Log an error.
tryToLogException('Exception while getting view on exception')
if view is not None:
try:
# We use mapply instead of self.callObject here
# because we don't want to pass positional
# arguments. The positional arguments were meant
# for the published object, not an exception view.
body = mapply(view, (), request)
response.setResult(body)
transaction.commit()
if (ISystemErrorView.providedBy(view)
and view.isSystemError()):
# Got a system error, want to log the error
# Lame hack to get around logging missfeature
# that is fixed in Python 2.4
try:
raise exc_info[0], exc_info[1], exc_info[2]
except:
logging.getLogger('SiteError').exception(
str(request.URL), )
except:
# Problem rendering the view for this exception.
# Log an error.
tryToLogException(
'Exception while rendering view on exception')
# Record the error with the ErrorReportingUtility
self._logErrorWithErrorReportingUtility(
object, request, sys.exc_info())
view = None
if view is None:
# Either the view was not found, or view was set to None
# because the view couldn't be rendered. In either case,
# we let the request handle it.
response.handleException(exc_info)
transaction.abort()
# See if there's an IExceptionSideEffects adapter for the
# exception
try:
adapter = IExceptionSideEffects(exception, None)
except:
tryToLogException(
'Exception while getting IExceptionSideEffects adapter')
adapter = None
if adapter is not None:
self.beginErrorHandlingTransaction(
request, object, 'application error-handling side-effect')
try:
# Although request is passed in here, it should be
# considered read-only.
adapter(object, request, exc_info)
transaction.commit()
except:
tryToLogException('Exception while calling'
' IExceptionSideEffects adapter')
transaction.abort()
def isAvailable(self):
name = queryDefaultViewName(self.context, self.request, None)
if name == self.wizard.__name__:
return False
else:
return super(ContentViewStep, self).isAvailable()
