- modification : less configuration parameters in administration

  screen. These parameters are move to include/config_default.inc.php.

- new : ability to add a single picture to caddie from picture.php

- new : contextual help, only a few pages are available.

- new : ability to delete users from admin/user_list

- modification : reorganization of configuration file

- new : configuration parameter use_exif_mapping

- improvement : MOD hidemail added to standard


git-svn-id: http://piwigo.org/svn/trunk@858 68402e56-0260-453c-a942-63ccdbb3a9ee

9 files changed, 222 insertions, 605 deletions

diff --git a/admin.php b/admin.php
index b2113b22a..cb92cb5d5 100644
--- a/admin.php
+++ b/admin.php
@@ -72,9 +72,6 @@ $template->assign_vars(
     'U_CONFIG_GENERAL'=>add_session_id($conf_link.'general' ),
     'U_CONFIG_COMMENTS'=>add_session_id($conf_link.'comments' ),
     'U_CONFIG_DISPLAY'=>add_session_id($conf_link.'default' ),
-    'U_CONFIG_UPLOAD'=>add_session_id($conf_link.'upload' ),
-    'U_CONFIG_SESSION'=>add_session_id($conf_link.'session' ),
-    'U_CONFIG_METADATA'=>add_session_id($conf_link.'metadata' ),
     'U_CATEGORIES'=>add_session_id($link_start.'cat_list' ),
     'U_CAT_UPLOAD'=>add_session_id($opt_link.'upload'),
     'U_CAT_COMMENTS'=>add_session_id($opt_link.'comments'),
diff --git a/admin/configuration.php b/admin/configuration.php
index 8829c0822..9da9c56d3 100644
--- a/admin/configuration.php
+++ b/admin/configuration.php
@@ -60,17 +60,6 @@ if (isset($_POST['submit']))
   {
     case 'general' :
     {
-      // thumbnail prefix must only contain simple ASCII characters
-      if (!preg_match('/^[\w-]*$/', $_POST['prefix_thumbnail']))
-      {
-        array_push($page['errors'], $lang['conf_prefix_thumbnail_error']);
-      }
-      // mail must be formatted as follows : name@server.com
-      $pattern = '/^[\w-]+(\.[\w-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)+$/';
-      if (!preg_match($pattern, $_POST['mail_webmaster']))
-      {
-        array_push($page['errors'], $lang['conf_mail_webmaster_error']);
-      }
       break;
     }
     case 'comments' :
@@ -95,30 +84,6 @@ if (isset($_POST['submit']))
       }
       break;
     }
-    case 'upload' :
-    {
-      // the maximum upload filesize must be an integer between 10 and 1000
-      if (!preg_match($int_pattern, $_POST['upload_maxfilesize'])
-          or $_POST['upload_maxfilesize'] < 10
-          or $_POST['upload_maxfilesize'] > 1000)
-      {
-        array_push($page['errors'], $lang['conf_upload_maxfilesize_error']);
-      }
-      
-      foreach (array('upload_maxwidth',
-                     'upload_maxheight',
-                     'upload_maxwidth_thumbnail',
-                     'upload_maxheight_thumbnail')
-               as $field)
-      {
-        if (!preg_match($int_pattern, $_POST[$field])
-            or $_POST[$field] < 10)
-        {
-          array_push($page['errors'], $lang['conf_'.$field.'_error']);
-        }
-      }
-      break;
-    }
   }
   
   // updating configuration if no error found
@@ -154,6 +119,8 @@ $template->assign_vars(
     'L_NO'=>$lang['no'],
     'L_SUBMIT'=>$lang['submit'],
     'L_RESET'=>$lang['reset'],
+
+    'U_HELP' => PHPWG_ROOT_PATH.'/popuphelp.php?page=configuration',
     
     'F_ACTION'=>add_session_id($action)
     ));
@@ -170,18 +137,6 @@ switch ($page['section'])
     $template->assign_block_vars(
       'general',
       array(
-        'L_CONF_TITLE'=>$lang['conf_general_title'],
-        'L_CONF_MAIL'=>$lang['conf_mail_webmaster'],
-        'L_CONF_MAIL_INFO'=>$lang['conf_mail_webmaster_info'],
-        'L_CONF_TN_PREFIX'=>$lang['conf_prefix'],
-        'L_CONF_TN_PREFIX_INFO'=>$lang['conf_prefix_info'],
-        'L_CONF_HISTORY'=>$lang['history'],
-        'L_CONF_HISTORY_INFO'=>$lang['conf_log_info'],
-        'L_CONF_GALLERY_LOCKED'=>$lang['conf_gallery_locked'],
-        'L_CONF_GALLERY_LOCKED_INFO'=>$lang['conf_gallery_locked_info'],
-          
-        'ADMIN_MAIL'=>$conf['mail_webmaster'],
-        'THUMBNAIL_PREFIX'=>$conf['prefix_thumbnail'],
         'HISTORY_YES'=>$history_yes,
         'HISTORY_NO'=>$history_no,
         'GALLERY_LOCKED_YES'=>$lock_yes,
@@ -199,14 +154,6 @@ switch ($page['section'])
     $template->assign_block_vars(
       'comments',
       array(
-        'L_CONF_TITLE'=>$lang['conf_comments_title'],
-        'L_CONF_COMMENTS_ALL'=>$lang['conf_comments_forall'],
-        'L_CONF_COMMENTS_ALL_INFO'=>$lang['conf_comments_forall_info'],
-        'L_CONF_NB_COMMENTS_PAGE'=>$lang['conf_nb_comment_page'],
-        'L_CONF_NB_COMMENTS_PAGE_INFO'=>$lang['conf_nb_comment_page'],
-        'L_CONF_VALIDATE'=>$lang['conf_comments_validation'],
-        'L_CONF_VALIDATE_INFO'=>$lang['conf_comments_validation_info'],
-          
         'NB_COMMENTS_PAGE'=>$conf['nb_comment_page'],
         'COMMENTS_ALL_YES'=>$all_yes,
         'COMMENTS_ALL_NO'=>$all_no,
@@ -225,28 +172,8 @@ switch ($page['section'])
     $template->assign_block_vars(
       'default',
       array(
-        'L_CONF_TITLE'=>$lang['conf_default_title'],
-        'L_CONF_LANG'=>$lang['language'],
-        'L_CONF_LANG_INFO'=>$lang['conf_default_language_info'],
-        'L_NB_IMAGE_LINE'=>$lang['nb_image_per_row'],
-        'L_NB_IMAGE_LINE_INFO'=>$lang['conf_nb_image_line_info'],
-        'L_NB_ROW_PAGE'=>$lang['nb_row_per_page'],
-        'L_NB_ROW_PAGE_INFO'=>$lang['conf_nb_line_page_info'],
-        'L_CONF_STYLE'=>$lang['theme'],
-        'L_CONF_STYLE_INFO'=>$lang['conf_default_theme_info'],
-        'L_CONF_RECENT'=>$lang['recent_period'],
-        'L_CONF_RECENT_INFO'=>$lang['conf_recent_period_info'],
-        'L_CONF_EXPAND'=>$lang['auto_expand'],
-        'L_CONF_EXPAND_INFO'=>$lang['conf_default_expand_info'],
-        'L_NB_COMMENTS'=>$lang['show_nb_comments'],
-        'L_NB_COMMENTS_INFO'=>$lang['conf_show_nb_comments_info'],
-        'L_MAXWIDTH'=>$lang['maxwidth'],
-        'L_MAXHEIGHT'=>$lang['maxheight'],
-  
-        'CONF_LANG_SELECT'=>language_select($conf['default_language'], 'default_language'),
         'NB_IMAGE_LINE'=>$conf['nb_image_line'],
         'NB_ROW_PAGE'=>$conf['nb_line_page'],
-        'CONF_STYLE_SELECT'=>style_select($conf['default_template'], 'default_template'),
         'CONF_RECENT'=>$conf['recent_period'],
         'NB_COMMENTS_PAGE'=>$conf['nb_comment_page'],
         'EXPAND_YES'=>$expand_yes,
@@ -254,86 +181,65 @@ switch ($page['section'])
         'SHOW_COMMENTS_YES'=>$show_yes,
         'SHOW_COMMENTS_NO'=>$show_no
         ));
-    break;
-  }
-  case 'upload' :
-  {
-    $template->assign_block_vars(
-      'upload',
-      array(
-        'L_CONF_TITLE'=>$lang['conf_upload_title'],
-        'L_CONF_MAXSIZE'=>$lang['conf_upload_maxfilesize'],
-        'L_CONF_MAXSIZE_INFO'=>$lang['conf_upload_maxfilesize_info'],
-        'L_CONF_MAXWIDTH'=>$lang['conf_upload_maxwidth'],
-        'L_CONF_MAXWIDTH_INFO'=>$lang['conf_upload_maxwidth_info'],
-        'L_CONF_MAXHEIGHT'=>$lang['conf_upload_maxheight'],
-        'L_CONF_MAXHEIGHT_INFO'=>$lang['conf_upload_maxheight_info'],
-        'L_CONF_TN_MAXWIDTH'=>$lang['conf_upload_tn_maxwidth'],
-        'L_CONF_TN_MAXWIDTH_INFO'=>$lang['conf_upload_tn_maxwidth_info'],
-        'L_CONF_TN_MAXHEIGHT'=>$lang['conf_upload_tn_maxheight'],
-        'L_CONF_TN_MAXHEIGHT_INFO'=>$lang['conf_upload_tn_maxheight_info'],
-          
-        'UPLOAD_MAXSIZE'=>$conf['upload_maxfilesize'],
-        'UPLOAD_MAXWIDTH'=>$conf['upload_maxwidth'],
-        'UPLOAD_MAXHEIGHT'=>$conf['upload_maxheight'],
-        'TN_UPLOAD_MAXWIDTH'=>$conf['upload_maxwidth_thumbnail'],
-        'TN_UPLOAD_MAXHEIGHT'=>$conf['upload_maxheight_thumbnail'],
-        ));
-    break;
-  }
-  case 'session' :
-  {
-    $authorize_remembering_yes =
-      ($conf['authorize_remembering']=='true')?'checked="checked"':'';
-    $authorize_remembering_no =
-      ($conf['authorize_remembering']=='false')?'checked="checked"':'';
+    
+    $blockname = 'default.language_option';
+    
+    foreach (get_languages() as $language_code => $language_name)
+    {
+      if (isset($_POST['submit']))
+      {
+        $selected =
+          $_POST['default_language'] == $language_code
+            ? 'selected="selected"' : '';
+      }
+      else if ($conf['default_language'] == $language_code)
+      {
+        $selected = 'selected="selected"';
+      }
+      else
+      {
+        $selected = '';
+      }
       
-    $template->assign_block_vars(
-      'session',
-      array(
-        'L_CONF_TITLE'=>$lang['conf_session_title'],
-        'L_CONF_AUTHORIZE_REMEMBERING'=>$lang['conf_authorize_remembering'],
-        'L_CONF_AUTHORIZE_REMEMBERING_INFO' =>
-        $lang['conf_authorize_remembering_info'],
+      $template->assign_block_vars(
+        $blockname,
+        array(
+          'VALUE'=> $language_code,
+          'CONTENT' => $language_name,
+          'SELECTED' => $selected
+          ));
+    }
 
-        'AUTHORIZE_REMEMBERING_YES'=>$authorize_remembering_yes,
-        'AUTHORIZE_REMEMBERING_NO'=>$authorize_remembering_no
-        ));
-    break;
-  }
-  case 'metadata' :
-  {
-    $exif_yes = ($conf['use_exif']=='true')?'checked="checked"':'';
-    $exif_no = ($conf['use_exif']=='false')?'checked="checked"':'';
-    $iptc_yes = ($conf['use_iptc']=='true')?'checked="checked"':'';
-    $iptc_no = ($conf['use_iptc']=='false')?'checked="checked"':'';
-    $show_exif_yes = ($conf['show_exif']=='true')?'checked="checked"':'';
-    $show_exif_no = ($conf['show_exif']=='false')?'checked="checked"':'';
-    $show_iptc_yes = ($conf['show_iptc']=='true')?'checked="checked"':'';
-    $show_iptc_no = ($conf['show_iptc']=='false')?'checked="checked"':'';
+    $blockname = 'default.template_option';
+
+    foreach (get_templates() as $pwg_template)
+    {
+      if (isset($_POST['submit']))
+      {
+        $selected =
+          $_POST['default_template'] == $pwg_template
+            ? 'selected="selected"' : '';
+      }
+      else if ($conf['default_template'] == $pwg_template)
+      {
+        $selected = 'selected="selected"';
+      }
+      else
+      {
+        $selected = '';
+      }
       
-    $template->assign_block_vars(
-      'metadata',
-      array(
-        'L_CONF_TITLE'=>$lang['conf_metadata_title'],
-        'L_CONF_EXIF'=>$lang['conf_use_exif'],
-        'L_CONF_EXIF_INFO'=>$lang['conf_use_exif_info'],
-        'L_CONF_IPTC'=>$lang['conf_use_iptc'],
-        'L_CONF_IPTC_INFO'=>$lang['conf_use_iptc_info'],
-        'L_CONF_SHOW_EXIF'=>$lang['conf_show_exif'],
-        'L_CONF_SHOW_EXIF_INFO'=>$lang['conf_show_exif_info'],
-        'L_CONF_SHOW_IPTC'=>$lang['conf_show_iptc'],
-        'L_CONF_SHOW_IPTC_INFO'=>$lang['conf_show_iptc_info'],
-          
-        'USE_EXIF_YES'=>$exif_yes,
-        'USE_EXIF_NO'=>$exif_no,
-        'USE_IPTC_YES'=>$iptc_yes,
-        'USE_IPTC_NO'=>$iptc_no,
-        'SHOW_EXIF_YES'=>$show_exif_yes,
-        'SHOW_EXIF_NO'=>$show_exif_no,
-        'SHOW_IPTC_YES'=>$show_iptc_yes,
-        'SHOW_IPTC_NO'=>$show_iptc_no
-        ));
+      $template->assign_block_vars(
+        $blockname,
+        array(
+          'VALUE'=> $pwg_template,
+          'CONTENT' => $pwg_template,
+          'SELECTED' => $selected
+          )
+        );
+    }
+
+ 
     break;
   }
 }
diff --git a/admin/include/functions.php b/admin/include/functions.php
index 2b7a9a5cc..78ec15a09 100644
--- a/admin/include/functions.php
+++ b/admin/include/functions.php
@@ -364,7 +364,7 @@ DELETE FROM '.SESSIONS_TABLE.'
 
   // deletion of calculated permissions linked to the user
   $query = '
-DELETE FROM '.USER_FORBIDDEN_TABLE.'
+DELETE FROM '.USER_CACHE_TABLE.'
   WHERE user_id = '.$user_id.'
 ;';
   pwg_query($query);
diff --git a/admin/include/functions_metadata.php b/admin/include/functions_metadata.php
index 23b04833c..4836f85a3 100644
--- a/admin/include/functions_metadata.php
+++ b/admin/include/functions_metadata.php
@@ -27,18 +27,19 @@
 
 include_once(PHPWG_ROOT_PATH.'/include/functions_metadata.inc.php');
 
+$page['datefields'] = array('date_creation', 'date_available');
+
 function get_sync_iptc_data($file)
 {
-  global $conf;
+  global $conf, $page;
   
   $map = $conf['use_iptc_mapping'];
-  $datefields = array('date_creation', 'date_available');
   
   $iptc = get_iptc_data($file, $map);
 
   foreach ($iptc as $pwg_key => $value)
   {
-    if (in_array($pwg_key, $datefields))
+    if (in_array($pwg_key, $page['datefields']))
     {
       if (preg_match('/(\d{4})(\d{2})(\d{2})/', $value, $matches))
       {
@@ -59,6 +60,26 @@ function get_sync_iptc_data($file)
   return $iptc;
 }
 
+function get_sync_exif_data($file)
+{
+  global $conf, $page;
+
+  $exif = get_exif_data($file, $conf['use_exif_mapping']);
+
+  foreach ($exif as $pwg_key => $value)
+  {
+    if (in_array($pwg_key, $page['datefields']))
+    {
+      if (preg_match('/^(\d{4}).(\d{2}).(\d{2})/', $value, $matches))
+      {
+        $exif[$pwg_key] = $matches[1].'-'.$matches[2].'-'.$matches[3];
+      }
+    }
+  }
+
+  return $exif;
+}
+
 function update_metadata($files)
 {
   global $conf;
@@ -84,17 +105,13 @@ function update_metadata($files)
   
     if ($conf['use_exif'])
     {
-      if (!function_exists('read_exif_data'))
-      {
-        die('Exif extension not available, admin should disable exif use');
-      }
-      
-      if ($exif = @read_exif_data($file))
+      $exif = get_sync_exif_data($file);
+
+      if (count($exif) > 0)
       {
-        if (isset($exif['DateTime']))
+        foreach (array_keys($exif) as $key)
         {
-          preg_match('/^(\d{4}).(\d{2}).(\d{2})/',$exif['DateTime'],$matches);
-          $data['date_creation'] = $matches[1].'-'.$matches[2].'-'.$matches[3];
+          $data[$key] = addslashes($exif[$key]);
         }
       }
     }
@@ -128,7 +145,7 @@ function update_metadata($files)
       $update_fields = array_merge($update_fields,
                                    array_keys($conf['use_iptc_mapping']));
     }
-    
+
     $fields = array('primary' => array('id'),
                     'update'  => array_unique($update_fields));
     mass_updates(IMAGES_TABLE, $fields, $datas);
diff --git a/admin/infos_images.php b/admin/infos_images.php
deleted file mode 100644
index b8db86ec9..000000000
--- a/admin/infos_images.php
+++ /dev/null
@@ -1,351 +0,0 @@
-<?php
-// +-----------------------------------------------------------------------+
-// | PhpWebGallery - a PHP based picture gallery                           |
-// | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
-// | Copyright (C) 2003-2005 PhpWebGallery Team - http://phpwebgallery.net |
-// +-----------------------------------------------------------------------+
-// | branch        : BSF (Best So Far)
-// | file          : $RCSfile$
-// | last update   : $Date$
-// | last modifier : $Author$
-// | revision      : $Revision$
-// +-----------------------------------------------------------------------+
-// | This program is free software; you can redistribute it and/or modify  |
-// | it under the terms of the GNU General Public License as published by  |
-// | the Free Software Foundation                                          |
-// |                                                                       |
-// | This program is distributed in the hope that it will be useful, but   |
-// | WITHOUT ANY WARRANTY; without even the implied warranty of            |
-// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      |
-// | General Public License for more details.                              |
-// |                                                                       |
-// | You should have received a copy of the GNU General Public License     |
-// | along with this program; if not, write to the Free Software           |
-// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
-// | USA.                                                                  |
-// +-----------------------------------------------------------------------+
-
-if(!defined("PHPWG_ROOT_PATH"))
-{
-  die ("Hacking attempt!");
-}
-include_once(PHPWG_ROOT_PATH.'admin/include/isadmin.inc.php');
-// +-----------------------------------------------------------------------+
-// |                             initialization                            |
-// +-----------------------------------------------------------------------+
-check_cat_id($_GET['cat_id']);
-$errors = array();
-
-if (isset($page['cat']))
-{
-// +-----------------------------------------------------------------------+
-// |                       update individual options                       |
-// +-----------------------------------------------------------------------+
-  if (isset($_POST['submit']))
-  {
-    if (isset($_POST['associate']) and $_POST['associate'] != '')
-    {
-      // does the uppercat id exists in the database ?
-      if (!is_numeric($_POST['associate']))
-      {
-        array_push($errors, $lang['cat_unknown_id']);
-      }
-      else
-      {
-        $query = 'SELECT id FROM '.CATEGORIES_TABLE;
-        $query.= ' WHERE id = '.$_POST['associate'];
-        $query.= ';';
-        if (mysql_num_rows(pwg_query($query)) == 0)
-          array_push($errors, $lang['cat_unknown_id']);
-      }
-    }
-
-    $query = 'SELECT id,file FROM '.IMAGES_TABLE;
-    $query.= ' INNER JOIN '.IMAGE_CATEGORY_TABLE.' ON id = image_id';
-    $query.= ' WHERE category_id = '.$page['cat'];
-    $query.= ';';
-    $result = pwg_query($query);
-    while ($row = mysql_fetch_array($result))
-    {
-      $name          = 'name-'.$row['id'];
-      $author        = 'author-'.$row['id'];
-      $comment       = 'comment-'.$row['id'];
-      $date_creation = 'date_creation-'.$row['id'];
-      $keywords      = 'keywords-'.$row['id'];
-      if (isset($_POST[$name]))
-      {
-        $query = 'UPDATE '.IMAGES_TABLE.' SET name = ';
-        if ($_POST[$name] == '')
-          $query.= 'NULL';
-        else
-          $query.= "'".htmlentities($_POST[$name], ENT_QUOTES)."'";
-
-        $query.= ', author = ';
-        if ($_POST[$author] == '')
-          $query.= 'NULL';
-        else
-          $query.= "'".htmlentities($_POST[$author],ENT_QUOTES)."'";
-
-        $query.= ', comment = ';
-        if ($_POST[$comment] == '')
-          $query.= 'NULL';
-        else
-          $query.= "'".htmlentities($_POST[$comment],ENT_QUOTES)."'";
-
-        $query.= ', date_creation = ';
-        if (check_date_format($_POST[$date_creation]))
-          $query.= "'".date_convert($_POST[$date_creation])."'";
-        else if ($_POST[$date_creation] == '')
-          $query.= 'NULL';
-
-        $query.= ', keywords = ';
-
-        $keywords_array = get_keywords($_POST[$keywords]);
-        if (count($keywords_array) == 0) $query.= 'NULL';
-        else $query.= "'".implode(',', $keywords_array)."'";
-
-        $query.= ' WHERE id = '.$row['id'];
-        $query.= ';';
-        pwg_query($query);
-      }
-      // add link to another category
-      if (isset($_POST['check-'.$row['id']])
-          and isset($_POST['associate'])
-          and $_POST['associate'] != '')
-      {
-        $query = 'INSERT INTO '.IMAGE_CATEGORY_TABLE;
-        $query.= ' (image_id,category_id) VALUES';
-        $query.= ' ('.$row['id'].','.$_POST['associate'].')';
-        $query.= ';';
-        pwg_query($query);
-      }
-    }
-    if (isset($_POST['associate']) and $_POST['associate'] != '')
-    {
-      update_category(array($_POST['associate']));
-    }
-// +-----------------------------------------------------------------------+
-// |                        update general options                         |
-// +-----------------------------------------------------------------------+
-    if (isset($_POST['use_common_author']))
-    {
-      $query = 'SELECT image_id FROM '.IMAGE_CATEGORY_TABLE;
-      $query.= ' WHERE category_id = '.$page['cat'];
-      $result = pwg_query($query);
-      while ($row = mysql_fetch_array($result))
-      {
-        $query = 'UPDATE '.IMAGES_TABLE;
-        if ($_POST['author_cat'] == '')
-        {
-          $query.= ' SET author = NULL';
-        }
-        else
-        {
-          $query.= ' SET author = ';
-          $query.= "'".htmlentities($_POST['author_cat'], ENT_QUOTES)."'";
-        }
-        $query.= ' WHERE id = '.$row['image_id'];
-        $query.= ';';
-        pwg_query($query);
-      }
-    }
-    if (isset($_POST['use_common_date_creation']))
-    {
-      if (check_date_format($_POST['date_creation_cat']))
-      {
-        $date = date_convert($_POST['date_creation_cat']);
-        $query = 'SELECT image_id FROM '.IMAGE_CATEGORY_TABLE;
-        $query.= ' WHERE category_id = '.$page['cat'];
-        $result = pwg_query($query);
-        while ($row = mysql_fetch_array($result))
-        {
-          $query = 'UPDATE '.IMAGES_TABLE;
-          if ($_POST['date_creation_cat'] == '')
-          {
-            $query.= ' SET date_creation = NULL';
-          }
-          else
-          {
-            $query.= " SET date_creation = '".$date."'";
-          }
-          $query.= ' WHERE id = '.$row['image_id'];
-          $query.= ';';
-          pwg_query($query);
-        }
-      }
-      else
-      {
-        array_push($errors, $lang['err_date']);
-      }
-    }
-    if (isset($_POST['common_keywords']) and $_POST['keywords_cat'] != '')
-    {
-      $query = 'SELECT id,keywords FROM '.IMAGES_TABLE;
-      $query.= ' INNER JOIN '.IMAGE_CATEGORY_TABLE.' ON id = image_id';
-      $query.= ' WHERE category_id = '.$page['cat'];
-      $query.= ';';
-      $result = pwg_query($query);
-      while ($row = mysql_fetch_array($result))
-      {
-        if (!isset($row['keywords'])) $specific_keywords = array();
-        else $specific_keywords = explode(',', $row['keywords']);
-        
-        $common_keywords   = get_keywords($_POST['keywords_cat']);
-        // first possiblity : adding the given keywords to all the pictures
-        if ($_POST['common_keywords'] == 'add')
-        {
-          $keywords = array_merge($specific_keywords, $common_keywords);
-          $keywords = array_unique($keywords);
-        }
-        // second possiblity : removing the given keywords from all pictures
-        // (without deleting the other specific keywords
-        if ($_POST['common_keywords'] == 'remove')
-        {
-          $keywords = array_diff($specific_keywords, $common_keywords);
-        }
-        // cleaning the keywords array, sometimes, an empty value still remain
-        $keywords = array_remove($keywords, '');
-        // updating the picture with new keywords array
-        $query = 'UPDATE '.IMAGES_TABLE.' SET keywords = ';
-        if (count($keywords) == 0)
-        {
-          $query.= 'NULL';
-        }
-        else
-        {
-          $query.= '"';
-          $i = 0;
-          foreach ($keywords as $keyword) {
-            if ($i++ > 0) $query.= ',';
-            $query.= $keyword;
-          }
-          $query.= '"';
-        }
-        $query.= ' WHERE id = '.$row['id'];
-        $query.= ';';
-        pwg_query($query);
-      }
-    }
-  }
-// +-----------------------------------------------------------------------+
-// |                           form initialization                         |
-// +-----------------------------------------------------------------------+
-  if (!isset($_GET['start'])
-      or !is_numeric($_GET['start'])
-      or (is_numeric($_GET['start']) and $_GET['start'] < 0))
-  {
-    $page['start'] = 0;
-  }
-  else
-  {
-    $page['start'] = $_GET['start'];
-  }
-
-  if (isset($_GET['num']) and is_numeric($_GET['num']) and $_GET['num'] >= 0)
-  {
-    $max = $conf['info_nb_elements_page'];
-    $page['start'] = floor($_GET['num'] / $max) * $max;
-  }
-  // Navigation path
-  $current_category = get_cat_info($_GET['cat_id']);
-  $url = PHPWG_ROOT_PATH.'admin.php?page=infos_images&amp;cat_id=';
-  $category_path = get_cat_display_name($current_category['name'], $url);
-  
-  $form_action = PHPWG_ROOT_PATH.'admin.php';
-  $form_action.= '?page=infos_images&amp;cat_id='.$_GET['cat_id'];
-  if($page['start'])
-  {
-    $form_action.= '&amp;start='.$_GET['start'];
-  }
-  
-  $nav_bar = create_navigation_bar($form_action,
-                                   $current_category['nb_images'],
-                                   $page['start'],
-                                   $conf['info_nb_elements_page'],
-                                   '');
-// +-----------------------------------------------------------------------+
-// |                         template initialization                       |
-// +-----------------------------------------------------------------------+
-  $template->set_filenames(array('infos_images'=>'admin/infos_images.tpl'));
-  $template->assign_vars(
-    array(
-      'CATEGORY'=>$category_path,
-      'NAV_BAR'=>$nav_bar,
-      
-      'L_INFOS_TITLE'=>$lang['infoimage_general'],
-      'L_AUTHOR'=>$lang['author'],
-      'L_INFOS_OVERALL_USE'=>$lang['infoimage_useforall'],
-      'L_INFOS_CREATION_DATE'=>$lang['infoimage_creation_date'],
-      'L_KEYWORD'=>$lang['keywords'],
-      'L_KEYWORD_SEPARATION'=>$lang['infoimage_keyword_separation'],
-      'L_INFOS_ADDTOALL'=>$lang['infoimage_addtoall'],
-      'L_INFOS_REMOVEFROMALL'=>$lang['infoimage_removefromall'],
-      'L_INFOS_DETAIL'=>$lang['infoimage_detailed'],
-      'L_THUMBNAIL'=>$lang['thumbnail'],
-      'L_INFOS_IMG'=>$lang['infoimage_title'],
-      'L_INFOS_COMMENT'=>$lang['description'],
-      'L_INFOS_ASSOCIATE'=>$lang['infoimage_associate'],
-      'L_SUBMIT'=>$lang['submit'],
-      
-      'F_ACTION'=>add_session_id($form_action)
-      ));
-// +-----------------------------------------------------------------------+
-// |                            errors display                             |
-// +-----------------------------------------------------------------------+
-  if (count($errors) != 0)
-  {
-    $template->assign_block_vars('errors',array());
-    foreach ($errors as $error)
-    {
-      $template->assign_block_vars('errors.error',array('ERROR'=>$error));
-    }
-  }
-// +-----------------------------------------------------------------------+
-// |                                 form                                  |
-// +-----------------------------------------------------------------------+
-  $array_cat_directories = array();
-
-  $pic_mod_base_url = PHPWG_ROOT_PATH.'admin.php';
-  $pic_mod_base_url = '?page=picture_modify&amp;image_id=';
-  
-  $query = '
-SELECT *
-  FROM '.IMAGES_TABLE.' INNER JOIN '.IMAGE_CATEGORY_TABLE.' ON id = image_id
-  WHERE category_id = '.$page['cat'].'
-  '.$conf['order_by'].'
-  LIMIT '.$page['start'].','.$conf['info_nb_elements_page'].'
-;';
-  $result = pwg_query($query);
-  while ($row = mysql_fetch_array($result))
-  {
-    $thumbnail_url = get_thumbnail_src($row['path'], @$row['tn_ext']);
-
-    $template->assign_block_vars(
-      'picture',
-      array(
-        'ID_IMG'=>$row['id'],
-        'URL_IMG'=>add_session_id($pic_mod_base_url.$row['id']),
-        'TN_URL_IMG'=>$thumbnail_url,
-        'FILENAME_IMG'=>$row['file'],
-        'DEFAULTNAME_IMG'=>get_filename_wo_extension($row['file']),
-        'NAME_IMG'=>@$row['name'],
-        'DATE_IMG'=>date_convert_back(@$row['date_creation']),
-        'AUTHOR_IMG'=>@$row['author'],
-        'KEYWORDS_IMG'=>@$row['keywords'],
-        'COMMENT_IMG'=>@$row['comment']
-       ));
-  }
-  
-  // Virtualy associate a picture to a category
-  $query = '
-SELECT id,name,uppercats,global_rank
-  FROM '.CATEGORIES_TABLE.'
-;';
-  display_select_cat_wrapper($query,
-                             array(),
-                             'associate_option',
-                             true);
-}
-//----------------------------------------------------------- sending html code
-$template->assign_var_from_handle('ADMIN_CONTENT', 'infos_images');
-?>
diff --git a/admin/maintenance.php b/admin/maintenance.php
index 935e42f0a..ec45196db 100644
--- a/admin/maintenance.php
+++ b/admin/maintenance.php
@@ -103,6 +103,7 @@ $template->assign_vars(
     'U_MAINT_HISTORY' => add_session_id($start_url.'history'),
     'U_MAINT_SESSIONS' => add_session_id($start_url.'sessions'),
     'U_MAINT_FEEDS' => add_session_id($start_url.'feeds'),
+    'U_HELP' => PHPWG_ROOT_PATH.'/popuphelp.php?page=maintenance',
     )
   );
   
diff --git a/admin/remote_site.php b/admin/remote_site.php
index 774358ddf..5044bd45a 100644
--- a/admin/remote_site.php
+++ b/admin/remote_site.php
@@ -512,10 +512,13 @@ $template->assign_vars(
     'L_REMOTE_SITE_LOCAL_FOUND'=>$lang['remote_site_local_found'],
     'L_REMOTE_SITE_LOCAL_NEW'=>$lang['remote_site_local_new'],
     'L_REMOTE_SITE_LOCAL_UPDATE'=>$lang['remote_site_local_update'],
+
+    'U_HELP' => PHPWG_ROOT_PATH.'/popuphelp.php?page=remote_site',
     
     'F_ACTION'=>add_session_id(PHPWG_ROOT_PATH.'admin.php?page=remote_site')
    )
  );
+ 
 // +-----------------------------------------------------------------------+
 // |                        new site creation form                         |
 // +-----------------------------------------------------------------------+
diff --git a/admin/update.php b/admin/update.php
index b0e26a3f7..e4283a824 100644
--- a/admin/update.php
+++ b/admin/update.php
@@ -573,6 +573,12 @@ $template->assign_vars(
     'L_USED_METADATA'=>$lang['update_used_metadata'],
     'METADATA_LIST' => $used_metadata
     ));
+
+$template->assign_vars(
+  array(
+    'U_HELP' => PHPWG_ROOT_PATH.'/popuphelp.php?page=synchronize'
+    )
+  );
 // +-----------------------------------------------------------------------+
 // |                        introduction : choices                         |
 // +-----------------------------------------------------------------------+
diff --git a/admin/user_list.php b/admin/user_list.php
index e4a4c6d7e..0671dabc3 100644
--- a/admin/user_list.php
+++ b/admin/user_list.php
@@ -49,10 +49,10 @@ if (isset($_POST['submit_add']))
 }
 
 // +-----------------------------------------------------------------------+
-// |                       preferences form submission                     |
+// |                            selected users                             |
 // +-----------------------------------------------------------------------+
 
-if (isset($_POST['pref_submit']))
+if (isset($_POST['delete']) or isset($_POST['pref_submit']))
 {
   $collection = array();
   
@@ -78,116 +78,154 @@ SELECT id
     }
   }
 
-  if (count($collection) > 0)
+  if (count($collection) == 0)
+  {
+    array_push($page['errors'], l10n('Select at least one user'));
+  }
+}
+
+// +-----------------------------------------------------------------------+
+// |                             delete users                              |
+// +-----------------------------------------------------------------------+
+
+if (isset($_POST['delete']) and count($collection) > 0)
+{
+  if (in_array($conf['webmaster_id'], $collection))
+  {
+    array_push($page['errors'], l10n('Webmaster cannot be deleted'));
+  }
+  else
   {
-    if (-1 != $_POST['associate'])
+    if (isset($_POST['confirm_deletion']) and 1 == $_POST['confirm_deletion'])
+    {
+      foreach ($collection as $user_id)
+      {
+        delete_user($user_id);
+      }
+      array_push(
+        $page['infos'],
+        sprintf(
+          l10n('%d users deleted'),
+          count($collection)
+          )
+        );
+    }
+    else
     {
-      $datas = array();
+      array_push($page['errors'], l10n('You need to confirm deletion'));
+    }
+  }
+}
 
-      $query = '
+// +-----------------------------------------------------------------------+
+// |                       preferences form submission                     |
+// +-----------------------------------------------------------------------+
+
+if (isset($_POST['pref_submit']) and count($collection) > 0)
+{
+  if (-1 != $_POST['associate'])
+  {
+    $datas = array();
+    
+    $query = '
 SELECT user_id
   FROM '.USER_GROUP_TABLE.'
   WHERE group_id = '.$_POST['associate'].'
 ;';
-      $associated = array_from_query($query, 'user_id');
-
-      $associable = array_diff($collection, $associated);
-
-      if (count($associable) > 0)
+    $associated = array_from_query($query, 'user_id');
+    
+    $associable = array_diff($collection, $associated);
+    
+    if (count($associable) > 0)
+    {
+      foreach ($associable as $item)
       {
-        foreach ($associable as $item)
-        {
-          array_push($datas,
-                     array('group_id'=>$_POST['associate'],
-                           'user_id'=>$item));
-        }
-        
-        mass_inserts(USER_GROUP_TABLE,
-                     array('group_id', 'user_id'),
-                     $datas);
+        array_push($datas,
+                   array('group_id'=>$_POST['associate'],
+                         'user_id'=>$item));
       }
+        
+      mass_inserts(USER_GROUP_TABLE,
+                   array('group_id', 'user_id'),
+                   $datas);
     }
-
-    if (-1 != $_POST['dissociate'])
-    {
-      $query = '
+  }
+  
+  if (-1 != $_POST['dissociate'])
+  {
+    $query = '
 DELETE FROM '.USER_GROUP_TABLE.'
   WHERE group_id = '.$_POST['dissociate'].'
   AND user_id IN ('.implode(',', $collection).')
 ';
-      pwg_query($query);
+    pwg_query($query);
+  }
+  
+  // properties to set for the collection (a user list)
+  $datas = array();
+  $dbfields = array('primary' => array('user_id'), 'update' => array());
+  
+  $formfields =
+    array('nb_image_line', 'nb_line_page', 'template', 'language',
+          'recent_period', 'maxwidth', 'expand', 'show_nb_comments',
+          'maxheight', 'status');
+  
+  $true_false_fields = array('expand', 'show_nb_comments');
+  
+  foreach ($formfields as $formfield)
+  {
+    // special for true/false fields
+    if (in_array($formfield, $true_false_fields))
+    {
+      $test = $formfield;
+    }
+    else
+    {
+      $test = $formfield.'_action';
     }
-
-    // properties to set for the collection (a user list)
-    $datas = array();
-    $dbfields = array('primary' => array('user_id'), 'update' => array());
-    
-    $formfields =
-      array('nb_image_line', 'nb_line_page', 'template', 'language',
-            'recent_period', 'maxwidth', 'expand', 'show_nb_comments',
-            'maxheight', 'status');
-
-    $true_false_fields = array('expand', 'show_nb_comments');
     
-    foreach ($formfields as $formfield)
+    if ($_POST[$test] != 'leave')
     {
-      // special for true/false fields
-      if (in_array($formfield, $true_false_fields))
-      {
-        $test = $formfield;
-      }
-      else
-      {
-        $test = $formfield.'_action';
-      }
-               
-      if ($_POST[$test] != 'leave')
-      {
-        array_push($dbfields['update'], $formfield);
-      }
+      array_push($dbfields['update'], $formfield);
     }
-
-    // updating elements is useful only if needed...
-    if (count($dbfields['update']) > 0)
+  }
+  
+  // updating elements is useful only if needed...
+  if (count($dbfields['update']) > 0)
+  {
+    $datas = array();
+    
+    foreach ($collection as $user_id)
     {
-      $datas = array();
+      $data = array();
+      $data['user_id'] = $user_id;
       
-      foreach ($collection as $user_id)
+      // TODO : verify if submited values are semanticaly correct
+      foreach ($dbfields['update'] as $dbfield)
       {
-        $data = array();
-        $data['user_id'] = $user_id;
-        
-        // TODO : verify if submited values are semanticaly correct
-        foreach ($dbfields['update'] as $dbfield)
-        {
-          // if the action is 'unset', the key won't be in row and
-          // mass_updates function will set this field to NULL
-          if (in_array($dbfield, $true_false_fields)
-              or 'set' == $_POST[$dbfield.'_action'])
-          {
-            $data[$dbfield] = $_POST[$dbfield];
-          }
-        }
-        
-        // Webmaster (user_id = 1) status must not be changed
-        if (1 == $user_id and isset($data['status']))
+        // if the action is 'unset', the key won't be in row and
+        // mass_updates function will set this field to NULL
+        if (in_array($dbfield, $true_false_fields)
+            or 'set' == $_POST[$dbfield.'_action'])
         {
-          $data['status'] = 'admin';
+          $data[$dbfield] = $_POST[$dbfield];
         }
-        
-        array_push($datas, $data);
       }
-
+      
+      // Webmaster status must not be changed
+      if ($conf['webmaster_id'] == $user_id and isset($data['status']))
+      {
+        $data['status'] = 'admin';
+      }
+      
+      array_push($datas, $data);
+    }
+    
 //       echo '<pre>';
 //       print_r($datas);
 //       echo '</pre>';
-
-      mass_updates(USER_INFOS_TABLE, $dbfields, $datas);
-    }
-  }
-  else
-  {
-    array_push($page['errors'], l10n('Select at least one user'));
+    
+    mass_updates(USER_INFOS_TABLE, $dbfields, $datas);
   }
 }