Index: horde-webmailer/debian/horde-webmailer/usr/share/horde3/kronolith/lib/api.php
===================================================================
--- horde-webmailer.orig/debian/horde-webmailer/usr/share/horde3/kronolith/lib/api.php	2008-10-15 16:01:34.000000000 +0200
+++ horde-webmailer/debian/horde-webmailer/usr/share/horde3/kronolith/lib/api.php	2008-10-15 16:01:34.000000000 +0200
@@ -126,6 +126,11 @@
     'type' => 'boolean',
 );
 
+$_services['synchronize'] = array(
+    'args' => array(),
+    'type' => 'boolean'
+);
+
 /**
  * Returns a list of available permissions.
  *
@@ -1433,3 +1438,35 @@
         return PEAR::raiseError('Unknown calendar specification');
     }
 }
+
+/**
+ * Synchronizes kronolith with the IMAP backend
+ *
+ * @return boolean  False if something went wrong
+ */
+function _kronolith_synchronize()
+{
+    require_once dirname(__FILE__) . '/base.php';
+    global $kronolith_driver;
+
+    $calendar = Kronolith::getDefaultCalendar();
+
+    if (!array_key_exists($calendar,
+                          Kronolith::listCalendars(false, PERMS_READ))) {
+        return False;
+    }
+
+    $kronolith_driver->open($calendar);
+
+    if (get_class ($kronolith_driver) == 'Kronolith_Driver_kolab' &&
+        get_class ($kronolith_driver->_wrapper) == 'Kronolith_Driver_kolab_wrapper_new') {
+
+        $kronolith_driver->_wrapper->synchronize (true);
+
+        if (get_class ($kronolith_driver->_wrapper->_store) == 'Kolab_IMAP') {
+            $kronolith_driver->_wrapper->_store->_synchronize ();
+        }
+    }
+
+    return True;
+}
Index: horde-webmailer/debian/horde-webmailer/usr/share/horde3/mnemo/lib/api.php
===================================================================
--- horde-webmailer.orig/debian/horde-webmailer/usr/share/horde3/mnemo/lib/api.php	2008-10-15 16:01:08.000000000 +0200
+++ horde-webmailer/debian/horde-webmailer/usr/share/horde3/mnemo/lib/api.php	2008-10-15 16:01:34.000000000 +0200
@@ -70,6 +70,11 @@
     'type' => 'boolean'
 );
 
+$_services['synchronize'] = array(
+    'args' => array(),
+    'type' => 'boolean'
+);
+
 /**
  * Returns a list of available permissions.
  *
@@ -475,3 +480,35 @@
         return PEAR::raiseError(sprintf(_("Unsupported Content-Type: %s"),$contentType));
     }
 }
+
+/**
+ * Synchronizes mnemo with the IMAP backend
+ *
+ * @return boolean  False if something went wrong
+ */
+function _mnemo_synchronize()
+{
+    require_once dirname(__FILE__) . '/base.php';
+
+    /* Make sure we have a valid notepad. */
+    if (empty($notepad)) {
+        $notepad = Mnemo::getDefaultNotepad();
+    }
+
+    if (!array_key_exists($notepad,
+                          Mnemo::listNotepads(false, PERMS_READ))) {
+        return False;
+    }
+
+    $storage = &Mnemo_Driver::singleton($notepad);
+    if (get_class ($storage) == 'Mnemo_Driver_kolab' &&
+        get_class ($storage->_wrapper) == 'Mnemo_Driver_kolab_wrapper_new') {
+
+        $storage->_wrapper->connect ();
+        if (get_class ($storage->_wrapper->_store) == 'Kolab_IMAP') {
+            $storage->_wrapper->_store->_synchronize ();
+        }
+    }
+
+    return True;
+}
Index: horde-webmailer/debian/horde-webmailer/usr/share/horde3/nag/lib/api.php
===================================================================
--- horde-webmailer.orig/debian/horde-webmailer/usr/share/horde3/nag/lib/api.php	2008-10-15 16:01:02.000000000 +0200
+++ horde-webmailer/debian/horde-webmailer/usr/share/horde3/nag/lib/api.php	2008-10-15 16:01:34.000000000 +0200
@@ -113,6 +113,11 @@
     'type' => '{urn:horde}hashHash'
 );
 
+$_services['synchronize'] = array(
+    'args' => array(),
+    'type' => 'boolean'
+);
+
 /**
  * Returns a list of available permissions.
  *
@@ -1352,3 +1357,32 @@
 
     return $alarm_list;
 }
+
+/**
+ * Synchronizes nag with the IMAP backend
+ *
+ * @return boolean  False if something went wrong
+ */
+function _nag_synchronize()
+{
+    require_once dirname(__FILE__) . '/base.php';
+
+    $tasklist = Nag::getDefaultTasklist(PERMS_READ);
+
+    if (!array_key_exists($tasklist,
+                          Nag::listTasklists(false, PERMS_READ))) {
+        return False;
+    }
+
+    $storage = &Nag_Driver::singleton($tasklist);
+    if (get_class ($storage) == 'Nag_Driver_kolab' &&
+        get_class ($storage->_wrapper) == 'Nag_Driver_kolab_wrapper_new') {
+
+        $storage->_wrapper->connect ();
+        if (get_class ($storage->_wrapper->_store) == 'Kolab_IMAP') {
+            $storage->_wrapper->_store->_synchronize ();
+        }
+    }
+
+    return True;
+}
Index: horde-webmailer/debian/horde-webmailer/usr/share/horde3/turba/lib/api.php
===================================================================
--- horde-webmailer.orig/debian/horde-webmailer/usr/share/horde3/turba/lib/api.php	2008-10-15 16:01:08.000000000 +0200
+++ horde-webmailer/debian/horde-webmailer/usr/share/horde3/turba/lib/api.php	2008-10-15 16:01:34.000000000 +0200
@@ -182,6 +182,11 @@
     'type' => 'boolean'
 );
 
+$_services['synchronize'] = array(
+    'args' => array(),
+    'type' => 'boolean'
+);
+
 /**
  * Removes user data.
  *
@@ -1886,3 +1891,49 @@
 
     return;
 }
+
+/**
+ * Synchronizes turba with the IMAP backend
+ *
+ * @return boolean  False if something went wrong
+ */
+function _turba_synchronize()
+{
+    global $prefs, $cfgSources;
+    require_once dirname(__FILE__) . '/base.php';
+
+    /* Get default address book from user preferences. */
+    if (empty($sources)) {
+        $sources = @unserialize($prefs->getValue('sync_books'));
+    } elseif (!is_array($sources)) {
+        $sources = array($sources);
+    }
+    if (empty($sources)) {
+        $sources = array(Turba::getDefaultAddressbook());
+    }
+    if (empty($sources)) {
+        return False;
+    }
+
+    foreach ($sources as $source) {
+        if (empty($source) || !isset($cfgSources[$source])) {
+            continue;
+        }
+
+        $driver = &Turba_Driver::singleton($source);
+        if (is_a($driver, 'PEAR_Error')) {
+            continue;
+        }
+        if (get_class ($driver) == 'Turba_Driver_share' &&
+            get_class ($driver->_driver) == 'Turba_Driver_kolab' &&
+            get_class ($driver->_driver->_wrapper) == 'Turba_Driver_kolab_wrapper_new') {
+
+            $driver->_driver->_wrapper->connect ();
+            if (get_class ($driver->_driver->_wrapper->_store) == 'Kolab_IMAP') {
+                $driver->_driver->_wrapper->_store->_synchronize ();
+            }
+        }
+    }
+
+    return True;
+}
Index: horde-webmailer/debian/horde-webmailer/usr/share/horde3/lib/SyncML/Command/Alert.php
===================================================================
--- horde-webmailer.orig/debian/horde-webmailer/usr/share/horde3/lib/SyncML/Command/Alert.php	2008-10-15 16:01:01.000000000 +0200
+++ horde-webmailer/debian/horde-webmailer/usr/share/horde3/lib/SyncML/Command/Alert.php	2008-10-15 16:18:26.000000000 +0200
@@ -287,6 +287,17 @@
                 'Creating SyncML_Sync object for database '
                 . $this->_targetLocURI .  '; sync type ' . $synctype,
                 __FILE__, __LINE__, PEAR_LOG_DEBUG);
+            /* Synchronize databases with the IMAP backend */
+            $databases = array ('kronolith', 'turba', 'nag', 'mnemo');
+            foreach($databases as $app) {
+                $GLOBALS['registry']->callByPackage($app, 'synchronize');
+            }
+            if ($serverAnchorNext == time ()) {
+                // make sure that the timestamps of the synchronized items in
+                // the database are different from serverAnchorNext
+                sleep (1);
+            }
+            $serverAnchorNext = $GLOBALS['backend']->getCurrentTimeStamp();
             $sync = new SyncML_Sync($synctype,
                                     $this->_targetLocURI,
                                     $this->_sourceLocURI,