def getCatalogVariablesFor(self, ob):
'''
Allows this workflow to make workflow-specific variables
available to the catalog, making it possible to implement
worklists in a simple way.
Returns a mapping containing the catalog variables
that apply to ob.
'''
res = {}
status = self._getStatusOf(ob)
for id, vdef in self.variables.items():
if vdef.for_catalog:
if status.has_key(id):
value = status[id]
# Not set yet. Use a default.
elif vdef.default_expr is not None:
ec = createExprContext(StateChangeInfo(ob, self, status))
value = vdef.default_expr(ec)
else:
value = vdef.default_value
res[id] = value
# Always provide the state variable.
state_var = self.state_var
res[state_var] = status.get(state_var, self.initial_state)
return res
def check(self, sm, wf_def, ob):
'''
Checks conditions in this guard.
'''
pp = self.permissions
if pp:
found = 0
for p in pp:
if _checkPermission(p, ob):
found = 1
break
if not found:
return 0
roles = self.roles
if roles:
# Require at least one of the given roles.
found = 0
u_roles = sm.getUser().getRolesInContext(ob)
for role in roles:
if role in u_roles:
found = 1
break
if not found:
return 0
expr = self.expr
if expr is not None:
econtext = createExprContext(StateChangeInfo(ob, wf_def))
res = expr(econtext)
if not res:
return 0
return 1
def getCatalogVariablesFor(self, ob):
'''
Allows this workflow to make workflow-specific variables
available to the catalog, making it possible to implement
worklists in a simple way.
Returns a mapping containing the catalog variables
that apply to ob.
'''
res = {}
status = self._getStatusOf(ob)
for id, vdef in self.variables.items():
if vdef.for_catalog:
if status.has_key(id):
value = status[id]
# Not set yet. Use a default.
elif vdef.default_expr is not None:
ec = createExprContext(StateChangeInfo(ob, self, status))
value = vdef.default_expr(ec)
else:
value = vdef.default_value
res[id] = value
# Always provide the state variable.
state_var = self.state_var
res[state_var] = status.get(state_var, self.initial_state)
return res
def check(self, sm, wf_def, ob):
'''
Checks conditions in this guard.
'''
pp = self.permissions
if pp:
found = 0
for p in pp:
if sm.checkPermission(p, ob):
found = 1
break
if not found:
return 0
roles = self.roles
if roles:
# Require at least one of the given roles.
found = 0
u_roles = sm.getUser().getRolesInContext(ob)
for role in roles:
if role in u_roles:
found = 1
break
if not found:
return 0
expr = self.expr
if expr is not None:
econtext = createExprContext(StateChangeInfo(ob, wf_def))
res = expr(econtext)
if not res:
return 0
return 1
def index_object(self, documentId, obj, threshold=None):
index_object = self.getProxyAttribute('index_object')
try:
ctx = createExprContext(obj)
value = self._expr(ctx)
wrapper = prepareObject(obj, value)
except Exception, e:
# gulp... the expression could raise many different types of errors.
if DEBUG_LOG_ERRORS:
LOG('ProxyIndex',PROBLEM,'%s tales error while indexing'%self.id)
return 0
def check(self, sm, wf_def, ob, **kw):
"""Checks conditions in this guard.
"""
u_roles = None
if wf_def.manager_bypass:
# Possibly bypass.
u_roles = sm.getUser().getRolesInContext(ob)
if 'Manager' in u_roles:
return 1
if self.permissions:
for p in self.permissions:
if _checkPermission(p, ob):
break
else:
return 0
if self.roles:
# Require at least one of the given roles.
if u_roles is None:
u_roles = sm.getUser().getRolesInContext(ob)
for role in self.roles:
if role in u_roles:
break
else:
return 0
if self.groups:
# Require at least one of the specified groups.
u = sm.getUser()
b = aq_base( u )
if hasattr( b, 'getGroupsInContext' ):
u_groups = u.getGroupsInContext( ob )
elif hasattr( b, 'getGroups' ):
u_groups = u.getGroups()
else:
u_groups = ()
for group in self.groups:
if group in u_groups:
break
else:
return 0
expr = self.expr
if expr is not None:
econtext = createExprContext(
StateChangeInfo(ob, wf_def, kwargs=kw))
res = expr(econtext)
if not res:
return 0
return 1
def check(self, sm, wf_def, ob, **kw):
"""Checks conditions in this guard.
"""
u_roles = None
if wf_def.manager_bypass:
# Possibly bypass.
u_roles = sm.getUser().getRolesInContext(ob)
if 'Manager' in u_roles:
return 1
if self.permissions:
for p in self.permissions:
if _checkPermission(p, ob):
break
else:
return 0
if self.roles:
# Require at least one of the given roles.
if u_roles is None:
u_roles = sm.getUser().getRolesInContext(ob)
for role in self.roles:
if role in u_roles:
break
else:
return 0
if self.groups:
# Require at least one of the specified groups.
u = sm.getUser()
b = aq_base( u )
if hasattr( b, 'getGroupsInContext' ):
u_groups = u.getGroupsInContext( ob )
elif hasattr( b, 'getGroups' ):
u_groups = u.getGroups()
else:
u_groups = ()
for group in self.groups:
if group in u_groups:
break
else:
return 0
expr = self.expr
if expr is not None:
econtext = createExprContext(
StateChangeInfo(ob, wf_def, kwargs=kw))
res = expr(econtext)
if not res:
return 0
return 1
def getInfoFor(self, ob, name, default):
'''
Allows the user to request information provided by the
workflow. This method must perform its own security checks.
'''
if name == self.state_var:
return self._getWorkflowStateOf(ob, 1)
vdef = self.variables[name]
if vdef.info_guard is not None and not vdef.info_guard.check(
getSecurityManager(), self, ob):
return default
status = self._getStatusOf(ob)
if status is not None and status.has_key(name):
value = status[name]
# Not set yet. Use a default.
elif vdef.default_expr is not None:
ec = createExprContext(StateChangeInfo(ob, self, status))
value = vdef.default_expr(ec)
else:
value = vdef.default_value
return value
def getInfoFor(self, ob, name, default):
'''
Allows the user to request information provided by the
workflow. This method must perform its own security checks.
'''
if name == self.state_var:
return self._getWorkflowStateOf(ob, 1)
vdef = self.variables[name]
if vdef.info_guard is not None and not vdef.info_guard.check(
getSecurityManager(), self, ob):
return default
status = self._getStatusOf(ob)
if status is not None and status.has_key(name):
value = status[name]
# Not set yet. Use a default.
elif vdef.default_expr is not None:
ec = createExprContext(StateChangeInfo(ob, self, status))
value = vdef.default_expr(ec)
else:
value = vdef.default_value
return value
# Preserve former value
value = former_status[id]
else:
if vdef.default_expr is not None:
expr = vdef.default_expr
else:
value = vdef.default_value
if expr is not None:
# Evaluate an expression.
if econtext is None:
# Lazily create the expression context.
if sci is None:
sci = StateChangeInfo(
ob, self, former_status, tdef,
old_sdef, new_sdef, kwargs)
econtext = createExprContext(sci)
value = expr(econtext)
status[id] = value
# Update state.
status[self.state_var] = new_state
tool = aq_parent(aq_inner(self))
tool.setStatusOf(self.id, ob, status)
# Update role to permission assignments.
self.updateRoleMappingsFor(ob)
# Execute the "after" script.
if tdef is not None and tdef.after_script_name:
script = self.scripts[tdef.after_script_name]
# Pass lots of info to the script in a single parameter.
# Preserve former value
value = former_status[id]
else:
if vdef.default_expr is not None:
expr = vdef.default_expr
else:
value = vdef.default_value
if expr is not None:
# Evaluate an expression.
if econtext is None:
# Lazily create the expression context.
if sci is None:
sci = StateChangeInfo(
ob, self, former_status, tdef,
old_sdef, new_sdef, kwargs)
econtext = createExprContext(sci)
value = expr(econtext)
status[id] = value
# Update state.
status[self.state_var] = new_state
tool = aq_parent(aq_inner(self))
tool.setStatusOf(self.id, ob, status)
# Update role to permission assignments.
self.updateRoleMappingsFor(ob)
# Execute the "after" script.
if tdef is not None and tdef.after_script_name:
script = self.scripts[tdef.after_script_name]
# Pass lots of info to the script in a single parameter.
def listFilteredActionsFor(self, object=None):
'''Gets all actions available to the user and returns a mapping
containing user actions, object actions, and global actions.
'''
portal = aq_parent(aq_inner(self))
if object is None or not hasattr(object, 'aq_base'):
folder = portal
else:
folder = object
# Search up the containment hierarchy until we find an
# object that claims it's a folder.
while folder is not None:
if getattr(aq_base(folder), 'isPrincipiaFolderish', 0):
# found it.
break
else:
folder = aq_parent(aq_inner(folder))
ec = createExprContext(folder, portal, object)
ai_objs = []
actions = []
info = oai(self, folder, object)
# Include actions from specific tools.
for provider_name in self.listActionProviders():
provider = getattr(self, provider_name)
a = provider.listActions(info)
if a and type(a[0]) is not type({}):
ai_objs.extend(list(a))
else:
for i in a:
actions.append(i)
if ai_objs:
for ai in ai_objs:
if ai.testCondition(ec):
actions.append(ai.getAction(ec))
# Include actions from object.
if object is not None:
base = aq_base(object)
types_tool = getToolByName(self, 'portal_types')
ti = types_tool.getTypeInfo(object)
if ti is not None:
defs = ti.getActions()
if defs:
c_url = object.absolute_url()
for d in defs:
a = d['action']
if a:
url = c_url + '/' + a
else:
url = c_url
actions.append({
'id': d.get('id', None),
'name': d['name'],
'url': url,
'permissions': d['permissions'],
'category': d.get('category', 'object'),
'visible': d.get('visible', 1),
})
if hasattr(base, 'listActions'):
a = object.listActions(info)
if a:
actions.extend(list(a))
# Reorganize the actions by category,
# filtering out disallowed actions.
filtered_actions = {
'user': [],
'folder': [],
'object': [],
'global': [],
'workflow': [],
}
for action in actions:
category = action['category']
permissions = action.get('permissions', None)
visible = action.get('visible', 1)
if not visible:
continue
verified = 0
if not permissions:
# This action requires no extra permissions.
verified = 1
else:
if category in ('object', 'workflow') and object is not None:
context = object
elif category == 'folder' and folder is not None:
context = folder
else:
context = portal
for permission in permissions:
# The user must be able to match at least one of
# the listed permissions.
if _checkPermission(permission, context):
verified = 1
break
if verified:
catlist = filtered_actions.get(category, None)
if catlist is None:
filtered_actions[category] = catlist = []
# If a bug occurs where actions appear more than once,
# a little code right here can fix it.
catlist.append(action)
return filtered_actions
def listFilteredActionsFor(self, object=None):
'''Gets all actions available to the user and returns a mapping
containing user actions, object actions, and global actions.
'''
portal = aq_parent(aq_inner(self))
if object is None or not hasattr(object, 'aq_base'):
folder = portal
else:
folder = object
# Search up the containment hierarchy until we find an
# object that claims it's a folder.
while folder is not None:
if getattr(aq_base(folder), 'isPrincipiaFolderish', 0):
# found it.
break
else:
folder = aq_parent(aq_inner(folder))
ec = createExprContext(folder, portal, object)
actions = []
append = actions.append
info = oai(self, folder, object)
# Include actions from specific tools.
for provider_name in self.listActionProviders():
provider = getattr(self, provider_name)
self._listActions(append, provider, info, ec)
# Include actions from object.
if object is not None:
base = aq_base(object)
types_tool = getToolByName(self, 'portal_types')
# we might get None back from getTypeInfo. We construct
# a dummy TypeInformation object here in that case (the 'or'
# case). This prevents us from needing to check the condition.
ti = types_tool.getTypeInfo(object) or TypeInformation('Dummy')
defs = ti.getActions()
url = object_url = object.absolute_url()
for d in defs:
# we can't modify or expose the original actionsd... this
# stems from the fact that getActions returns a ref to the
# actual dictionary used to store actions instead of a
# copy. We copy it here to prevent it from being modified.
d = d.copy()
d['id'] = d.get('id', None)
if d['action']:
url = '%s/%s' % (object_url, d['action'])
d['url'] = url
d['category'] = d.get('category', 'object')
d['visible'] = d.get('visible', 1)
actions.append(d)
if hasattr(base, 'listActions'):
self._listActions(append, object, info, ec)
# Reorganize the actions by category,
# filtering out disallowed actions.
filtered_actions = {
'user': [],
'folder': [],
'object': [],
'global': [],
'workflow': [],
}
for action in actions:
category = action['category']
permissions = action.get('permissions', None)
visible = action.get('visible', 1)
if not visible:
continue
verified = 0
if not permissions:
# This action requires no extra permissions.
verified = 1
else:
if (object is not None
and (category.startswith('object')
or category.startswith('workflow'))):
context = object
elif (folder is not None and category.startswith('folder')):
context = folder
else:
context = portal
for permission in permissions:
# The user must be able to match at least one of
# the listed permissions.
if _checkPermission(permission, context):
verified = 1
break
if verified:
catlist = filtered_actions.get(category, None)
if catlist is None:
filtered_actions[category] = catlist = []
# Filter out duplicate actions by identity...
if not action in catlist:
catlist.append(action)
# ...should you need it, here's some code that filters
# by equality (use instead of the two lines above)
#if not [a for a in catlist if a==action]:
# catlist.append(action)
return filtered_actions
def listFilteredActionsFor(self, object=None):
'''Gets all actions available to the user and returns a mapping
containing user actions, object actions, and global actions.
'''
portal = aq_parent(aq_inner(self))
if object is None or not hasattr(object, 'aq_base'):
folder = portal
else:
folder = object
# Search up the containment hierarchy until we find an
# object that claims it's a folder.
while folder is not None:
if getattr(aq_base(folder), 'isPrincipiaFolderish', 0):
# found it.
break
else:
folder = aq_parent(aq_inner(folder))
ec = createExprContext(folder, portal, object)
actions = []
append = actions.append
info = oai(self, folder, object)
# Include actions from specific tools.
for provider_name in self.listActionProviders():
provider = getattr(self, provider_name)
self._listActions(append,provider,info,ec)
# Include actions from object.
if object is not None:
base = aq_base(object)
types_tool = getToolByName( self, 'portal_types' )
# we might get None back from getTypeInfo. We construct
# a dummy TypeInformation object here in that case (the 'or'
# case). This prevents us from needing to check the condition.
ti = types_tool.getTypeInfo( object ) or TypeInformation('Dummy')
defs = ti.getActions()
url = object_url = object.absolute_url()
for d in defs:
# we can't modify or expose the original actionsd... this
# stems from the fact that getActions returns a ref to the
# actual dictionary used to store actions instead of a
# copy. We copy it here to prevent it from being modified.
d = d.copy()
d['id'] = d.get('id', None)
if d['action']:
url = '%s/%s' % (object_url, d['action'])
d['url'] = url
d['category'] = d.get('category', 'object')
d['visible'] = d.get('visible', 1)
actions.append(d)
if hasattr(base, 'listActions'):
self._listActions(append,object,info,ec)
# Reorganize the actions by category,
# filtering out disallowed actions.
filtered_actions={'user':[],
'folder':[],
'object':[],
'global':[],
'workflow':[],
}
for action in actions:
category = action['category']
permissions = action.get('permissions', None)
visible = action.get('visible', 1)
if not visible:
continue
verified = 0
if not permissions:
# This action requires no extra permissions.
verified = 1
else:
if (object is not None and
(category.startswith('object') or
category.startswith('workflow'))):
context = object
elif (folder is not None and
category.startswith('folder')):
context = folder
else:
context = portal
for permission in permissions:
# The user must be able to match at least one of
# the listed permissions.
if _checkPermission(permission, context):
verified = 1
break
if verified:
catlist = filtered_actions.get(category, None)
if catlist is None:
filtered_actions[category] = catlist = []
# Filter out duplicate actions by identity...
if not action in catlist:
catlist.append(action)
# ...should you need it, here's some code that filters
# by equality (use instead of the two lines above)
#if not [a for a in catlist if a==action]:
# catlist.append(action)
return filtered_actions
def listFilteredActionsFor(self, object=None):
"""
Return a mapping containing of all actions available to the
user against object, bucketing into categories.
"""
portal = aq_parent(aq_inner(self))
if object is None or not hasattr(object, 'aq_base'):
folder = portal
else:
folder = object
# Search up the containment hierarchy until we find an
# object that claims it's a folder.
while folder is not None:
if getattr(aq_base(folder), 'isPrincipiaFolderish', 0):
# found it.
break
else:
folder = aq_parent(aq_inner(folder))
ec = createExprContext(folder, portal, object)
actions = []
append = actions.append
info = oai(self, folder, object)
# Include actions from specific tools.
for provider_name in self.listActionProviders():
provider = getattr(self, provider_name)
self._listActions(append,provider,info,ec)
# Include actions from object.
if object is not None:
base = aq_base(object)
if hasattr(base, 'listActions'):
self._listActions(append,object,info,ec)
# Reorganize the actions by category,
# filtering out disallowed actions.
filtered_actions={'user':[],
'folder':[],
'object':[],
'global':[],
'workflow':[],
}
for action in actions:
category = action['category']
permissions = action.get('permissions', None)
visible = action.get('visible', 1)
if not visible:
continue
verified = 0
if not permissions:
# This action requires no extra permissions.
verified = 1
else:
# startswith() is used so that we can have several
# different categories that are checked in the object or
# folder context.
if (object is not None and
(category.startswith('object') or
category.startswith('workflow'))):
context = object
elif (folder is not None and
category.startswith('folder')):
context = folder
else:
context = portal
for permission in permissions:
# The user must be able to match at least one of
# the listed permissions.
if _checkPermission(permission, context):
verified = 1
break
if verified:
catlist = filtered_actions.get(category, None)
if catlist is None:
filtered_actions[category] = catlist = []
# Filter out duplicate actions by identity...
if not action in catlist:
catlist.append(action)
# ...should you need it, here's some code that filters
# by equality (use instead of the two lines above)
#if not [a for a in catlist if a==action]:
# catlist.append(action)
return filtered_actions
def listFilteredActionsFor(self, object=None):
"""
Return a mapping containing of all actions available to the
user against object, bucketing into categories.
"""
portal = aq_parent(aq_inner(self))
if object is None or not hasattr(object, 'aq_base'):
folder = portal
else:
folder = object
# Search up the containment hierarchy until we find an
# object that claims it's a folder.
while folder is not None:
if getattr(aq_base(folder), 'isPrincipiaFolderish', 0):
# found it.
break
else:
folder = aq_parent(aq_inner(folder))
ec = createExprContext(folder, portal, object)
actions = []
append = actions.append
info = oai(self, folder, object)
# Include actions from specific tools.
for provider_name in self.listActionProviders():
provider = getattr(self, provider_name)
self._listActions(append,provider,info,ec)
# Include actions from object.
if object is not None:
base = aq_base(object)
if hasattr(base, 'listActions'):
self._listActions(append,object,info,ec)
# Reorganize the actions by category,
# filtering out disallowed actions.
filtered_actions={'user':[],
'folder':[],
'object':[],
'global':[],
'workflow':[],
}
for action in actions:
category = action['category']
permissions = action.get('permissions', None)
visible = action.get('visible', 1)
if not visible:
continue
verified = 0
if not permissions:
# This action requires no extra permissions.
verified = 1
else:
# startswith() is used so that we can have several
# different categories that are checked in the object or
# folder context.
if (object is not None and
(category.startswith('object') or
category.startswith('workflow'))):
context = object
elif (folder is not None and
category.startswith('folder')):
context = folder
else:
context = portal
for permission in permissions:
# The user must be able to match at least one of
# the listed permissions.
if _checkPermission(permission, context):
verified = 1
break
if verified:
catlist = filtered_actions.get(category, None)
if catlist is None:
filtered_actions[category] = catlist = []
# Filter out duplicate actions by identity...
if not action in catlist:
catlist.append(action)
# ...should you need it, here's some code that filters
# by equality (use instead of the two lines above)
#if not [a for a in catlist if a==action]:
# catlist.append(action)
return filtered_actions
def listFilteredActionsFor(self, object=None):
'''Gets all actions available to the user and returns a mapping
containing user actions, object actions, and global actions.
'''
portal = aq_parent(aq_inner(self))
if object is None or not hasattr(object, 'aq_base'):
folder = portal
else:
folder = object
# Search up the containment hierarchy until we find an
# object that claims it's a folder.
while folder is not None:
if getattr(aq_base(folder), 'isPrincipiaFolderish', 0):
# found it.
break
else:
folder = aq_parent(aq_inner(folder))
ec = createExprContext(folder, portal, object)
actions = []
append = actions.append
info = oai(self, folder, object)
# Include actions from specific tools.
for provider_name in self.listActionProviders():
provider = getattr(self, provider_name)
self._listActions(append,provider,info,ec)
# Include actions from object.
if object is not None:
base = aq_base(object)
types_tool = getToolByName( self, 'portal_types' )
ti = types_tool.getTypeInfo( object )
if ti is not None:
defs = ti.getActions()
if defs:
c_url = object.absolute_url()
for d in defs:
a = d['action']
if a:
url = c_url + '/' + a
else:
url = c_url
actions.append({
'id': d.get('id', None),
'name': d['name'],
'action': d['action'],
'url': url,
'permissions': d['permissions'],
'category': d.get('category', 'object'),
'visible': d.get('visible', 1),
})
if hasattr(base, 'listActions'):
self._listActions(append,object,info,ec)
# Reorganize the actions by category,
# filtering out disallowed actions.
filtered_actions={'user':[],
'folder':[],
'object':[],
'global':[],
'workflow':[],
}
for action in actions:
category = action['category']
permissions = action.get('permissions', None)
visible = action.get('visible', 1)
if not visible:
continue
verified = 0
if not permissions:
# This action requires no extra permissions.
verified = 1
else:
if category in ('object', 'workflow') and object is not None:
context = object
elif category == 'folder' and folder is not None:
context = folder
else:
context = portal
for permission in permissions:
# The user must be able to match at least one of
# the listed permissions.
if _checkPermission(permission, context):
verified = 1
break
if verified:
catlist = filtered_actions.get(category, None)
if catlist is None:
filtered_actions[category] = catlist = []
# Filter out duplicate actions by identity...
if not action in catlist:
catlist.append(action)
# ...should you need it, here's some code that filters
# by equality (use instead of the two lines above)
#if not [a for a in catlist if a==action]:
# catlist.append(action)
return filtered_actions
def listFilteredActionsFor(self, object=None):
'''Gets all actions available to the user and returns a mapping
containing user actions, object actions, and global actions.
'''
portal = aq_parent(aq_inner(self))
if object is None or not hasattr(object, 'aq_base'):
folder = portal
else:
folder = object
# Search up the containment hierarchy until we find an
# object that claims it's a folder.
while folder is not None:
if getattr(aq_base(folder), 'isPrincipiaFolderish', 0):
# found it.
break
else:
folder = aq_parent(aq_inner(folder))
ec = createExprContext(folder, portal, object)
ai_objs = []
actions = []
info = oai(self, folder, object)
# Include actions from specific tools.
for provider_name in self.listActionProviders():
provider = getattr(self, provider_name)
a = provider.listActions(info)
if a and type(a[0]) is not type({}):
ai_objs.extend(list(a))
else:
for i in a:
actions.append(i)
if ai_objs:
for ai in ai_objs:
if ai.testCondition(ec):
actions.append(ai.getAction(ec))
# Include actions from object.
if object is not None:
base = aq_base(object)
types_tool = getToolByName( self, 'portal_types' )
ti = types_tool.getTypeInfo( object )
if ti is not None:
defs = ti.getActions()
if defs:
c_url = object.absolute_url()
for d in defs:
a = d['action']
if a:
url = c_url + '/' + a
else:
url = c_url
actions.append({
'id': d.get('id', None),
'name': d['name'],
'url': url,
'permissions': d['permissions'],
'category': d.get('category', 'object'),
'visible': d.get('visible', 1),
})
if hasattr(base, 'listActions'):
a = object.listActions(info)
if a:
actions.extend(list(a))
# Reorganize the actions by category,
# filtering out disallowed actions.
filtered_actions={'user':[],
'folder':[],
'object':[],
'global':[],
'workflow':[],
}
for action in actions:
category = action['category']
permissions = action.get('permissions', None)
visible = action.get('visible', 1)
if not visible:
continue
verified = 0
if not permissions:
# This action requires no extra permissions.
verified = 1
else:
if category in ('object', 'workflow') and object is not None:
context = object
elif category == 'folder' and folder is not None:
context = folder
else:
context = portal
for permission in permissions:
# The user must be able to match at least one of
# the listed permissions.
if _checkPermission(permission, context):
verified = 1
break
if verified:
catlist = filtered_actions.get(category, None)
if catlist is None:
filtered_actions[category] = catlist = []
# If a bug occurs where actions appear more than once,
# a little code right here can fix it.
catlist.append(action)
return filtered_actions