I recently wired together the GenericSetup handlers from PAS in an extension profile for another product. This way I can support fully declaritive import/export steps for setting up a PAS user folder within a CMF GS profile using the PAS subdirectory. As such we can avoid the declaritive abuse of GS used in borg, membrane, remember, etc..
It all worked great with a minimum of code in the other product with one exception. If a plugin type and active plugins for that type have been configured previously (whether by a GS profile or not) then registering the plugin type again with a new list of active plugins will result in duplicates in registry._plugin_types (as in acl_users.plugins._plugin_types). This doesn't actually break any functionality but results in duplicates in the PAS ZMI. Attached is a small patch that avoids this rather simply. I'd love to see it merged so I don't have to maintain changed copies in my own product to have extension profiles that modify a PAS UF configuration.
Index: exportimport.py
===================================================================
--- exportimport.py (revision 71599)
+++ exportimport.py (working copy)
@@ -81,7 +81,9 @@
for info in reg_info['plugin_types']:
iface = _resolveDottedName(info['interface'])
- registry._plugin_types.append(iface)
+ # Avoid duplicate plugin types
+ if iface not in registry._plugin_types:
+ registry._plugin_types.append(iface)
registry._plugin_type_info[iface] = {'id': info['id'],
'title': info['title'],
'description': info['description'],
I've also attached the module within my product's exportimport package and the overrides.zcml used in case this is of interest to anyone.
"""GenericSetup export/import handlers for setting up
PluggableAuthService plugins in acl_users."""
from StringIO import StringIO
from Persistence import PersistentMapping
from Products.GenericSetup.interfaces import IFilesystemImporter
from Products.GenericSetup.interfaces import IFilesystemExporter
from Products.GenericSetup.utils import _resolveDottedName
from Products.GenericSetup.content import FauxDAVRequest
from Products.GenericSetup.content import FauxDAVResponse
from Products.PluginRegistry.exportimport import PluginRegistryFileExportImportAdapter as Base
from Products.PluginRegistry.exportimport import PluginRegistryImporter
from Products.PluginRegistry.exportimport import _FILENAME
from Products.CMFCore.utils import getToolByName
# TODO: Wire up importers that don't remove objects not specified in
# either .preserve or .objects
def importPAS(context):
"""Import and setup any PAS plugins."""
uf = getToolByName(context.getSite(), 'acl_users')
IFilesystemImporter(uf).import_(context, 'PAS', True)
def exportPAS(context):
"""Export any PAS plugins with configurations."""
uf = getToolByName(context.getSite(), 'acl_users')
IFilesystemExporter(uf).export(context, 'PAS', True)
overrides.zcml
Description: Binary data
Ross
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