CPS Directory, when used for members, provides indirections to two
basic components:
The User Folder for basic user information (user ID, password,
role, groups). It will be accessed directly to get the relevant
information. As there is no standardized API for everything, we
must take into account:
Basic User Folder
User Folder With Groups
LDAP User Folder
Pluggable User Folder
GRUF
The MemberData Tool for access to member properties. This is
dealt with differently according to the user folder:
Basic User Folder: standard CMF MemberData Tool
User Folder With Groups: standard CMF MemberData Tool
LDAP User Folder: CMFLDAP
Pluggable User Folder: tool to do
GRUF: ?
The access needed includes searching members. As there is no
standard (or sufficiently powerful) API to do a multi-field search,
it must be implemented for each kind of user folder as an add-on
(probably a monkey-patch XXX) which I'll call the search component.
When searching for multiple fields, for instance email='foo'
and groups='bar', the work has to be done by the search
component which means that the search component must also know
about roles and groups. The CMF MemberData Tool doesn't know how
to do that. Plone has extended the Membership Tool to give it a
searchForMembers method that knows about name, email, roles,
last_login_time. It could be extended to do more.
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