From 5ce8b4ccf7976026a55988109683234f7b74f5c6 Mon Sep 17 00:00:00 2001
From: hickert <hickert@594d385d-05f5-0310-b6e9-bd551577e9d8>
Date: Wed, 5 Dec 2007 10:39:16 +0000
Subject: [PATCH] Added entryCSN check to tabs.

git-svn-id: https://oss.gonicus.de/repositories/gosa/trunk@8008 594d385d-05f5-0310-b6e9-bd551577e9d8
---
 include/class_tabs.inc | 19 ++++++++++++++++++-
 include/functions.inc  | 24 ++++++++++++++++++++++++
 2 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/include/class_tabs.inc b/include/class_tabs.inc
index 7e9c593a1..c54739fb6 100644
--- a/include/class_tabs.inc
+++ b/include/class_tabs.inc
@@ -33,6 +33,8 @@ class tabs
   var $by_object= array();
   var $SubDialog = false;
 
+  var $entryCSN = "";
+
   function tabs(&$config, $data, $dn, $acl_category= "")
   {
     /* Save dn */
@@ -41,6 +43,8 @@ class tabs
 
     $baseobject= NULL;
 
+    $this->entryCSN = getEntryCSN($dn);
+
     foreach ($data as &$tab){
       $this->by_name[$tab['CLASS']]= $tab['NAME'];
 
@@ -127,6 +131,11 @@ class tabs
 
   function save_object($save_current= FALSE)
   {
+    /* Update entry CSN if it is empty. */
+    if(empty($this->entryCSN)){
+      $this->entryCSN = getEntryCSN($this->dn);
+    }
+
     /* Save last tab */
     if ($this->last != ""){
       @DEBUG (DEBUG_TRACE, __LINE__, __FUNCTION__, __FILE__,
@@ -247,6 +256,13 @@ class tabs
 
     $current_set = FALSE;
 
+    /* Check entryCSN */
+    $current_csn = getEntryCSN($this->dn);
+    if($current_csn != $this->entryCSN && !empty($this->entryCSN) && !empty($current_csn)){
+      $this->entryCSN = $current_csn;
+      $messages[] = _("The object has changed since opened in GOsa. Please ensure that nobody has done serious changes that may get lost if you save this entry.");
+    }
+
     /* Check all plugins */
     foreach ($this->by_object as $key => &$obj){
       if ($obj->is_account || $ignore_account || $obj->ignore_account){
@@ -268,12 +284,14 @@ class tabs
         $obj->pl_notify= FALSE;
       }
     }
+    $messages = array_unique($messages);
     return ($messages);
   }
 
   function save($ignore_account= FALSE)
   {
     /* Save all plugins */
+    $this->entryCSN = "";
     foreach ($this->by_object as $key => &$obj){
       @DEBUG (DEBUG_TRACE, __LINE__, __FUNCTION__, __FILE__,
           $key, "Saving");
@@ -362,7 +380,6 @@ class tabs
       }
     }
   }
-
 }
 // vim:tabstop=2:expandtab:shiftwidth=2:filetype=php:syntax:ruler:
 ?>
diff --git a/include/functions.inc b/include/functions.inc
index 2ed6b9be5..812715bf0 100644
--- a/include/functions.inc
+++ b/include/functions.inc
@@ -2647,6 +2647,30 @@ function crypt_single($string,$enc_type )
 }
 
 
+function getEntryCSN($dn)
+{
+  global $config;
+  if(empty($dn) || !is_object($config)){
+    return("");
+  }
+
+  /* Get attribute that we should use as serial number */
+  if(isset($config->current['UNIQ_IDENTIFIER'])){
+    $attr = $config->current['UNIQ_IDENTIFIER'];
+  }elseif(isset($config->data['MAIN']['UNIQ_IDENTIFIER'])){
+    $attr = $config->data['MAIN']['UNIQ_IDENTIFIER'];
+  }
+  if(!empty($attr)){
+    $ldap = $config->get_ldap_link();
+    $ldap->cat($dn,array($attr));
+    $csn = $ldap->fetch();
+    if(isset($csn[$attr][0])){
+      return($csn[$attr][0]);
+    }
+  }
+  return("");
+}
+
 /* This function returns the offset for the default timezone. 
  * $stamp is used to detect summer or winter time.
  * In case of PHP5, the integrated timezone functions are used.
-- 
2.30.2