fix(ppolicy) Store dn instead of cn for default ppolicy

Also attempt at migrating previous configuration
Code in core will need to be adapted.

issue #6044

ppolicy/config/ppolicy/class_ppolicyConfig.inc

@@ -47,12 +47,26 @@ class ppolicyConfig extends simplePlugin
             'ou=ppolicies'
           ),
           new StringAttribute(
-            _('Default ppolicy cn'), _('What you put as default ppolicy in the overlay config'),
-            'fdPpolicyDefaultCn', FALSE,
-            'default'
+            _('Default ppolicy dn'), _('What you put as default ppolicy in the overlay config'),
+            'fdPpolicyDefaultDn', FALSE
           ),
+          new HiddenAttribute('fdPpolicyDefaultCn'),
         ]
       ],
     ];
   }
+
+  function __construct (string $dn = NULL, $object = NULL, $parent = NULL, bool $mainTab = FALSE)
+  {
+    global $config;
+
+    parent::__construct($dn, $object, $parent, $mainTab);
+
+    if (!empty($this->fdPpolicyDefaultCn)) {
+      if (empty($this->fdPpolicyDefaultDn)) {
+        $this->fdPpolicyDefaultDn = 'cn='.$this->fdPpolicyDefaultCn.','.get_ou('ppolicyRDN').$config->current['BASE'];
+      }
+      $this->fdPpolicyDefaultCn = '';
+    }
+  }
 }

ppolicy/contrib/openldap/ppolicy-fd-conf.schema

@@ -11,15 +11,23 @@ attributetype ( 1.3.6.1.4.1.38414.45.1.1 NAME 'fdPpolicyRDN'
   SINGLE-VALUE)
 
 attributetype ( 1.3.6.1.4.1.38414.45.1.2 NAME 'fdPpolicyDefaultCn'
+  OBSOLETE
   DESC 'FusionDirectory - cn of the default ppolicy'
   EQUALITY caseExactIA5Match
   SUBSTR caseExactIA5SubstringsMatch
   SYNTAX 1.3.6.1.4.1.1466.115.121.1.26
   SINGLE-VALUE)
 
+attributetype ( 1.3.6.1.4.1.38414.45.1.3 NAME 'fdPpolicyDefaultDn'
+  DESC 'FusionDirectory - dn of the default ppolicy'
+  EQUALITY distinguishedNameMatch
+  SUBSTR caseIgnoreSubstringsMatch
+  SYNTAX 1.3.6.1.4.1.1466.115.121.1.12
+  SINGLE-VALUE)
+
 # Object Class
 objectclass ( 1.3.6.1.4.1.38414.45.2.1 NAME 'fdPpolicyPluginConf'
   DESC 'FusionDirectory ppolicy plugin configuration'
   SUP top AUXILIARY
   MUST ( cn )
-  MAY ( fdPpolicyRDN $ fdPpolicyDefaultCn) )
+  MAY ( fdPpolicyRDN $ fdPpolicyDefaultCn $ fdPpolicyDefaultDn ) )