next if (group_permissions[target.owner_uuid] and
group_permissions[target.owner_uuid][action])
end
+ sufficient_perms = case action
+ when :manage
+ ['can_manage']
+ when :write
+ ['can_manage', 'can_write']
+ when :read
+ ['can_manage', 'can_write', 'can_read']
+ else
+ # (Skip this kind of permission opportunity
+ # if action is an unknown permission type)
+ end
+ if sufficient_perms
+ # Check permission links with head_uuid pointing directly at
+ # the target object. If target is a Group, this is redundant
+ # and will fail except [a] if permission caching is broken or
+ # [b] during a race condition, where a permission link has
+ # *just* been added.
+ if Link.where(link_class: 'permission',
+ name: sufficient_perms,
+ tail_uuid: groups_i_can(action) + [self.uuid],
+ head_uuid: target_uuid).any?
+ next
+ end
+ end
return false
end
true
Group.where('owner_uuid in (?)', lookup_uuids).each do |group|
newgroups << [group.owner_uuid, group.uuid, 'can_manage']
end
- # add any permission links from the current lookup_uuids to a
- # User or Group.
- Link.where('tail_uuid in (?) and link_class = ? and (head_uuid like ? or head_uuid like ?)',
- lookup_uuids,
+ # add any permission links from the current lookup_uuids to a Group.
+ Link.where('link_class = ? and tail_uuid in (?) and ' \
+ '(head_uuid like ? or (name = ? and head_uuid like ?))',
'permission',
+ lookup_uuids,
Group.uuid_like_pattern,
+ 'can_manage',
User.uuid_like_pattern).each do |link|
newgroups << [link.tail_uuid, link.head_uuid, link.name]
end