From 3f250a0fe63725f3daca904d93fd63d5eb437c56 Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <thomas@roundcube.net>
Date: Fri, 9 Nov 2012 11:50:33 +0100
Subject: [PATCH] Add config options to automatically generate LDAP attributes
 for new entries

---
 config/main.inc.php.dist       |  5 +++++
 program/include/rcube_ldap.php | 29 ++++++++++++++++++++++++++++-
 2 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/config/main.inc.php.dist b/config/main.inc.php.dist
index dafee72f1..35fe0e8f6 100644
--- a/config/main.inc.php.dist
+++ b/config/main.inc.php.dist
@@ -636,6 +636,11 @@ $rcmail_config['ldap_public']['Verisign'] = array(
   ),
   // Map of contact sub-objects (attribute name => objectClass(es)), e.g. 'c' => 'country'
   'sub_fields' => array(),
+  // Generate values for the following LDAP attributes automatically when creating a new record
+  'autovalues' => array(
+  // 'uid'  => 'md5(microtime())',               // You may specify PHP code snippets which are then eval'ed 
+  // 'mail' => '{givenname}.{sn}@mydomain.com',  // or composite strings with placeholders for existing attributes
+  ),
   'sort'          => 'cn',    // The field to sort the listing by.
   'scope'         => 'sub',   // search mode: sub|base|list
   'filter'        => '(objectClass=inetOrgPerson)',      // used for basic listing (if not empty) and will be &'d with search queries. example: status=act
diff --git a/program/include/rcube_ldap.php b/program/include/rcube_ldap.php
index 61a073fa3..90ce73ae2 100644
--- a/program/include/rcube_ldap.php
+++ b/program/include/rcube_ldap.php
@@ -160,7 +160,7 @@ class rcube_ldap extends rcube_addressbook
         }
 
         // make sure LDAP_rdn field is required
-        if (!empty($this->prop['LDAP_rdn']) && !in_array($this->prop['LDAP_rdn'], $this->prop['required_fields'])) {
+        if (!empty($this->prop['LDAP_rdn']) && !in_array($this->prop['LDAP_rdn'], $this->prop['required_fields']) && !in_array($this->prop['LDAP_rdn'], array_keys($this->prop['autovalues']))) {
             $this->prop['required_fields'][] = $this->prop['LDAP_rdn'];
         }
 
@@ -1086,6 +1086,9 @@ class rcube_ldap extends rcube_addressbook
         $newentry = $this->_map_data($save_cols);
         $newentry['objectClass'] = $this->prop['LDAP_Object_Classes'];
 
+        // add automatically generated attributes
+        $this->add_autovalues($newentry);
+
         // Verify that the required fields are set.
         $missing = null;
         foreach ($this->prop['required_fields'] as $fld) {
@@ -1389,6 +1392,30 @@ class rcube_ldap extends rcube_addressbook
         }
     }
 
+    /**
+     * Generate missing attributes as configured
+     *
+     * @param array LDAP record attributes
+     */
+    protected function add_autovalues(&$attrs)
+    {
+        $attrvals = array();
+        foreach ($attrs as $k => $v) {
+            $attrvals['{'.$k.'}'] = is_array($v) ? $v[0] : $v;
+        }
+
+        foreach ((array)$this->prop['autovalues'] as $lf => $templ) {
+            if (empty($attrs[$lf])) {
+                // replace {attr} placeholders with concrete attribute values
+                $templ = preg_replace('/\{\w+\}/', '', strtr($templ, $attrvals));
+
+                if (strpos($templ, '(') !== false)
+                    $attrs[$lf] = eval("return ($templ);");
+                else
+                    $attrs[$lf] = $templ;
+            }
+        }
+    }
 
     /**
      * Execute the LDAP search based on the stored credentials