URL rewriting: fix some old links, calendar simplification and prepare code

for urls without ? (added functions get_root_url and add_url_param)

git-svn-id: http://piwigo.org/svn/trunk@1090 68402e56-0260-453c-a942-63ccdbb3a9ee

9 files changed, 274 insertions, 265 deletions

diff --git a/include/calendar_base.class.php b/include/calendar_base.class.php
index a3240e679..5d358f4ad 100644
--- a/include/calendar_base.class.php
+++ b/include/calendar_base.class.php
@@ -45,7 +45,7 @@ class CalendarBase
   function initialize($inner_sql)
   {
     global $page;
-    if ($page['chronology']['field']=='posted')
+    if ($page['chronology_field']=='posted')
     {
       $this->date_field = 'date_available';
     }
diff --git a/include/calendar_monthly.class.php b/include/calendar_monthly.class.php
index 556e6e976..0d70ea4c6 100644
--- a/include/calendar_monthly.class.php
+++ b/include/calendar_monthly.class.php
@@ -69,7 +69,7 @@ function generate_category_content()
 {
   global $conf, $page;
 
-  $view_type = $page['chronology']['view'];
+  $view_type = $page['chronology_view'];
   if ($view_type==CAL_VIEW_CALENDAR)
   {
     if ( count($page['chronology_date'])==0 )
diff --git a/include/category_default.inc.php b/include/category_default.inc.php
index 599c527a9..e7c4b8ddc 100644
--- a/include/category_default.inc.php
+++ b/include/category_default.inc.php
@@ -28,7 +28,7 @@
 /**
  * This file is included by the main page to show thumbnails for the default
  * case
- * 
+ *
  */
 
 $page['rank_of'] = array_flip($page['items']);
@@ -52,7 +52,7 @@ SELECT *
   while ($row = mysql_fetch_array($result))
   {
     $row['rank'] = $page['rank_of'][ $row['id'] ];
-    
+
     array_push($pictures, $row);
   }
 
@@ -72,50 +72,22 @@ if (count($pictures) > 0)
 foreach ($pictures as $row)
 {
   $thumbnail_url = get_thumbnail_src($row['path'], @$row['tn_ext']);
-  
+
   // message in title for the thumbnail
   $thumbnail_title = $row['file'];
   if (isset($row['filesize']))
   {
     $thumbnail_title .= ' : '.$row['filesize'].' KB';
   }
-  
-  // url link on picture.php page
-  $url_link = PHPWG_ROOT_PATH.'picture.php?/'.$row['id'];
 
-  switch ($page['section'])
-  {
-    case 'categories' :
-    {
-      $url_link.= '/category/'.$page['category'];
-      break;
-    }
-    case 'tags' :
-    {
-      // TODO
-      break;
-    }
-    case 'search' :
-    {
-      $url_link.= '/search/'.$page['search'];
-      break;
-    }
-    case 'list' :
-    {
-      $url_link.= '/list/'.implode(',', $page['list']);
-      break;
-    }
-    default :
-    {
-      $url_link.= '/'.$page['section'];
-    }
-  }
-  
-  if (isset($page['chronology']))
-  {
-    $url_link.= '/chronology='.$page['chronology'];
-  }
-    
+  // link on picture.php page
+  $url = duplicate_picture_url(
+        array(
+          'image_id' => $row['id'],
+          'image_file' => $row['file']
+        )
+      );
+
   $template->assign_block_vars(
     'thumbnails.line.thumbnail',
     array(
@@ -123,8 +95,8 @@ foreach ($pictures as $row)
       'IMAGE_ALT'          => $row['file'],
       'IMAGE_TITLE'        => $thumbnail_title,
       'IMAGE_TS'           => get_icon($row['date_available']),
-      
-      'U_IMG_LINK'         => $url_link
+
+      'U_IMG_LINK'         => $url
       )
     );
 
@@ -158,7 +130,7 @@ foreach ($pictures as $row)
         break;
       }
     }
-  
+
     $template->assign_block_vars(
       'thumbnails.line.thumbnail.element_name',
       array(
@@ -166,7 +138,7 @@ foreach ($pictures as $row)
         )
       );
   }
-    
+
   if ($user['show_nb_comments']
       and isset($page['category'])
       and $page['cat_commentable'])
diff --git a/include/functions.inc.php b/include/functions.inc.php
index 948f33f44..68ba765fe 100644
--- a/include/functions.inc.php
+++ b/include/functions.inc.php
@@ -574,9 +574,10 @@ function get_pwg_themes()
  *
  * @param string path
  * @param string tn_ext
+ * @param bool with_rewrite if true returned path can't be used from the script
  * @return string
  */
-function get_thumbnail_src($path, $tn_ext = '')
+function get_thumbnail_src($path, $tn_ext = '', $with_rewrite = true)
 {
   global $conf, $user;
 
@@ -589,10 +590,15 @@ function get_thumbnail_src($path, $tn_ext = '')
       1
       );
     $src.= '.'.$tn_ext;
+    if ($with_rewrite==true and !url_is_remote($src) )
+    {
+      $src = get_root_url().$src;
+    }
   }
   else
   {
-    $src = get_themeconf('mime_icon_dir');
+    $src = ($with_rewrite==true) ? get_root_url() : '';
+    $src .= get_themeconf('mime_icon_dir');
     $src.= strtolower(get_extension($path)).'.png';
   }
 
@@ -1004,6 +1010,35 @@ function get_available_upgrade_ids()
 }
 
 /**
+ * returns a prefix for each url link on displayed page
+ * @return string
+ */
+function get_root_url()
+{
+  global $page;
+  if ( isset($page['root_path']) )
+  {
+    return $page['root_path'];
+  }
+  return PHPWG_ROOT_PATH;
+}
+
+/**
+ * adds one or more _GET style parameters to an url
+ * example: add_url_param('/x', 'a=b') returns /x?a=b
+ * add_url_param('/x?cat_id=10', 'a=b') returns /x?cat_id=10&a=b
+ * @param string url
+ * @param string param
+ * @return string
+ */
+function add_url_param($url, $param)
+{
+  $url .= ( strstr($url, '?')===false ) ? '?' :'&';
+  $url .= $param;
+  return $url;
+}
+
+/**
  * build an index URL for a specific section
  *
  * @param array
@@ -1012,7 +1047,7 @@ function get_available_upgrade_ids()
 function make_index_URL($params = array())
 {
   $url =
-    PHPWG_ROOT_PATH.'category.php?'
+    get_root_url().'category.php?'
     .'/'.make_section_in_URL($params)
     ;
 
@@ -1105,7 +1140,7 @@ function make_picture_URL($params)
   }
 
   $url =
-    PHPWG_ROOT_PATH.'picture.php?'
+    get_root_url().'picture.php?'
     .'/'.$params['image_id']
     .'/'.make_section_in_URL($params)
     ;
@@ -1119,15 +1154,15 @@ function make_picture_URL($params)
 */
 function add_well_known_params_in_url($url, $params)
 {
-  if ( isset($params['chronology']) )
+  if ( isset($params['chronology_field']) )
   {
-    $url .= '/'. $params['chronology']['field'];
-    $url .= '-'. $params['chronology']['style'];
-    if ( isset($params['chronology']['view']) )
+    $url .= '/'. $params['chronology_field'];
+    $url .= '-'. $params['chronology_style'];
+    if ( isset($params['chronology_view']) )
     {
-      $url .= '-'. $params['chronology']['view'];
+      $url .= '-'. $params['chronology_view'];
     }
-    if ( isset($params['chronology_date']) )
+    if ( !empty($params['chronology_date']) )
     {
       $url .= '-'. implode('-', $params['chronology_date'] );
     }
diff --git a/include/functions_calendar.inc.php b/include/functions_calendar.inc.php
index e673e326a..6dc178d10 100644
--- a/include/functions_calendar.inc.php
+++ b/include/functions_calendar.inc.php
@@ -34,7 +34,8 @@ function initialize_calendar()
 //------------------ initialize the condition on items to take into account ---
   $inner_sql = ' FROM ' . IMAGES_TABLE;
 
-  if (!isset($page['category']) or is_numeric($page['category']))
+  if ($page['section']=='categories' or
+      ( isset($page['category']) and is_numeric($page['category']) ) )
   { // we will regenerate the items by including subcats elements
     $page['cat_nb_images'] = 0;
     $page['items'] = array();
@@ -101,35 +102,34 @@ WHERE id IN (' . implode(',',$page['items']) .')';
   $views = array(CAL_VIEW_LIST,CAL_VIEW_CALENDAR);
 
   // Retrieve calendar field
-  if ( !isset( $fields[ $page['chronology']['field'] ] ) )
+  if ( !isset( $fields[ $page['chronology_field'] ] ) )
   {
-    die('bad field');
+    die('bad chronology field');
   }
 
   // Retrieve style
-  if ( !isset( $styles[ $page['chronology']['style'] ] ) )
+  if ( !isset( $styles[ $page['chronology_style'] ] ) )
   {
-    $page['chronology']['style'] = 'monthly';
+    $page['chronology_style'] = 'monthly';
   }
-  $cal_style = $page['chronology']['style'];
+  $cal_style = $page['chronology_style'];
   include(PHPWG_ROOT_PATH.'include/'. $styles[$cal_style]['include']);
   $calendar = new Calendar();
 
   // Retrieve view
 
-  if ( !isset($page['chronology']['view']) or
-       !in_array( $page['chronology']['view'], $views ) )
+  if ( !isset($page['chronology_view']) or
+       !in_array( $page['chronology_view'], $views ) )
   {
-    $page['chronology']['view'] = CAL_VIEW_LIST;
+    $page['chronology_view'] = CAL_VIEW_LIST;
   }
 
-  if ( CAL_VIEW_CALENDAR==$page['chronology']['view'] and
+  if ( CAL_VIEW_CALENDAR==$page['chronology_view'] and
         !$styles[$cal_style]['view_calendar'] )
   {
 
-    $page['chronology']['view'] = CAL_VIEW_LIST;
+    $page['chronology_view'] = CAL_VIEW_LIST;
   }
-  $cal_view = $page['chronology']['view'];
 
   // perform a sanity check on $requested
   if (!isset($page['chronology_date']))
@@ -146,7 +146,7 @@ WHERE id IN (' . implode(',',$page['items']) .')';
   {
     if ($page['chronology_date'][$i] == 'any')
     {
-      if ($cal_view == CAL_VIEW_CALENDAR)
+      if ($page['chronology_view'] == CAL_VIEW_CALENDAR)
       {// we dont allow any in calendar view
         while ($i < count($page['chronology_date']))
         {
@@ -177,15 +177,8 @@ WHERE id IN (' . implode(',',$page['items']) .')';
 
   //echo ('<pre>'. var_export($calendar, true) . '</pre>');
 
-/*  $url_base = get_query_string_diff(array('start', 'calendar'));
-  $url_base =
-    PHPWG_ROOT_PATH.'category.php'
-    .$url_base
-    .(empty($url_base) ? '?' : '&')
-    .'calendar='.$cal_field.'-'
-    ;*/
   $must_show_list = true; // true until calendar generates its own display
-  if (basename($_SERVER["PHP_SELF"]) == 'category.php')
+  if (basename($_SERVER['SCRIPT_NAME']) == 'category.php')
   {
     $template->assign_block_vars('calendar', array());
 
@@ -208,9 +201,6 @@ WHERE id IN (' . implode(',',$page['items']) .')';
         if ( $style_data['view_calendar'] or $view != CAL_VIEW_CALENDAR)
         {
           $selected = '';
-          $chronology = $page['chronology'];
-          $chronology['style'] = $style;
-          $chronology['view'] = $view;
 
           if ($style!=$cal_style)
           {
@@ -226,12 +216,13 @@ WHERE id IN (' . implode(',',$page['items']) .')';
           }
           $url = duplicate_index_url(
               array(
-                'chronology' => $chronology,
+                'chronology_style' => $style,
+                'chronology_view' => $view,
                 'chronology_date' => $chronology_date,
                 )
              );
 
-          if ($style==$cal_style and $view==$cal_view )
+          if ($style==$cal_style and $view==$page['chronology_view'] )
           {
             $selected = 'SELECTED';
           }
@@ -240,7 +231,7 @@ WHERE id IN (' . implode(',',$page['items']) .')';
             'calendar.views.view',
             array(
               'VALUE' => $url,
-              'CONTENT' => l10n('calendar_'.$style.'_'.$view),
+              'CONTENT' => l10n('chronology_'.$style.'_'.$view),
               'SELECTED' => $selected,
               )
             );
@@ -248,10 +239,10 @@ WHERE id IN (' . implode(',',$page['items']) .')';
       }
     }
     $url = duplicate_index_url(
-              array('chronology_date'=>array()), array('start')
+              array(), array('start', 'chronology_date')
             );
     $calendar_title = '<a href="'.$url.'">'
-        .$fields[$chronology['field']]['label'].'</a>';
+        .$fields[$page['chronology_field']]['label'].'</a>';
     $calendar_title.= $calendar->get_display_name();
     //this should be an assign_block_vars, but I need to assign 'calendar'
     //above and at that point I don't have the title yet.
diff --git a/include/functions_html.inc.php b/include/functions_html.inc.php
index 959153297..8cd69b5ba 100644
--- a/include/functions_html.inc.php
+++ b/include/functions_html.inc.php
@@ -45,7 +45,7 @@ function get_icon($date)
     $page['get_icon_cache'][$date] = '';
     return $page['get_icon_cache'][$date];
   }
-  
+
   list($devnull, $year, $month, $day) = $matches;
   $unixtime = mktime( 0, 0, 0, $month, $day, $year );
 
@@ -55,7 +55,7 @@ function get_icon($date)
     $page['get_icon_cache'][$date] = '';
     return $page['get_icon_cache'][$date];
   }
-  
+
   $diff = time() - $unixtime;
   $day_in_seconds = 24*60*60;
   $output = '';
@@ -83,9 +83,9 @@ function create_navigation_bar(
 
   $pages_around = $conf['paginate_pages_around'];
   $start_str = $clean_url ? '/start-' : '&amp;start=';
-  
+
   $navbar = '';
-  
+
   // current page detection
   if (!isset($start)
       or !is_numeric($start)
@@ -93,7 +93,7 @@ function create_navigation_bar(
   {
     $start = 0;
   }
-  
+
   // navigation bar useful only if more than one page to display !
   if ($nb_element > $nb_element_page)
   {
@@ -118,7 +118,7 @@ function create_navigation_bar(
     if ($start != 0)
     {
       $previous = $start - $nb_element_page;
-      
+
       $navbar.=
         '<a href="'
         .$url.($previous > 0 ? $start_str.$previous : '')
@@ -135,13 +135,13 @@ function create_navigation_bar(
     if ($cur_page > $pages_around + 1)
     {
       $navbar.= '&nbsp;<a href="'.$url.'">1</a>';
-      
+
       if ($cur_page > $pages_around + 2)
       {
         $navbar.= ' ...';
       }
     }
-    
+
     // inspired from punbb source code
     for ($i = $cur_page - $pages_around, $stop = $cur_page + $pages_around + 1;
          $i < $stop;
@@ -154,7 +154,7 @@ function create_navigation_bar(
       else if ($i != $cur_page)
       {
         $temp_start = ($i - 1) * $nb_element_page;
-        
+
         $navbar.=
           '&nbsp;'
           .'<a href="'.$url
@@ -176,22 +176,22 @@ function create_navigation_bar(
     if ($cur_page < ($maximum - $pages_around))
     {
       $temp_start = ($maximum - 1) * $nb_element_page;
-      
+
       if ($cur_page < ($maximum - $pages_around - 1))
       {
         $navbar.= ' ...';
       }
-      
+
       $navbar.= ' <a href="'.$url.$start_str.$temp_start.'">'.$maximum.'</a>';
     }
-    
+
     $navbar.= ' | ';
     // link on next page ?
     if ($nb_element > $nb_element_page
         and $start + $nb_element_page < $nb_element)
     {
       $next = $start + $nb_element_page;
-      
+
       $navbar.=
         '<a href="'.$url.$start_str.$next.'" rel="next">'
         .$lang['next_page']
@@ -201,13 +201,13 @@ function create_navigation_bar(
     {
       $navbar.= $lang['next_page'];
     }
-    
+
     $navbar.= ' | ';
     // link to last page ?
     if ($cur_page != $maximum)
     {
       $temp_start = ($maximum - 1) * $nb_element_page;
-      
+
       $navbar.=
         '<a href="'.$url.$start_str.$temp_start.'" rel="last">'
         .$lang['last_page']
@@ -257,7 +257,7 @@ function get_cat_display_name($cat_informations,
                               $replace_space = true)
 {
   global $conf;
-  
+
   $output = '';
   $is_first = true;
   foreach ($cat_informations as $id => $name)
@@ -323,13 +323,13 @@ SELECT id,name
       $cat_names[$row['id']] = $row['name'];
     }
   }
-  
+
   $output = '';
   $is_first = true;
   foreach (explode(',', $uppercats) as $category_id)
   {
     $name = $cat_names[$category_id];
-    
+
     if ($is_first)
     {
       $is_first = false;
@@ -384,7 +384,7 @@ function get_html_menu_category($categories)
   {
     $page_cat = $page['category'];
   }
-  
+
   foreach ($categories as $category)
   {
     $level = substr_count($category['global_rank'], '.') + 1;
@@ -410,9 +410,9 @@ function get_html_menu_category($categories)
       $menu.= ' class="selected"';
     }
     $menu.= '>';
-  
+
     $url = make_index_url(array('category' => $category['id']));
-    
+
     $menu.= "\n".'<a href="'.$url.'"';
     if ($page_cat != 0
         and $category['id'] == $page['cat_id_uppercat'])
@@ -433,7 +433,7 @@ function get_html_menu_category($categories)
   }
 
   $menu.= str_repeat("\n</li></ul>",($level));
-  
+
   return $menu;
 }
 
@@ -453,17 +453,17 @@ function parse_comment_content($content)
   $content = preg_replace($pattern, $replacement, $content);
 
   $content = nl2br($content);
-  
+
   // replace _word_ by an underlined word
   $pattern = '/\b_(\S*)_\b/';
   $replacement = '<span style="text-decoration:underline;">$1</span>';
   $content = preg_replace($pattern, $replacement, $content);
-  
+
   // replace *word* by a bolded word
   $pattern = '/\b\*(\S*)\*\b/';
   $replacement = '<span style="font-weight:bold;">$1</span>';
   $content = preg_replace($pattern, $replacement, $content);
-  
+
   // replace /word/ by an italic word
   $pattern = "/\/(\S*)\/(\s)/";
   $replacement = '<span style="font-style:italic;">$1$2</span>';
diff --git a/include/picture_comment.inc.php b/include/picture_comment.inc.php
index 6a40ea442..6572705dc 100644
--- a/include/picture_comment.inc.php
+++ b/include/picture_comment.inc.php
@@ -27,10 +27,10 @@
 
 /**
  * This file is included by the picture page to manage user comments
- * 
+ *
  */
 
-if ( isset( $_POST['content'] ) && !empty($_POST['content']) )
+if ( isset( $_POST['content'] ) and !empty($_POST['content']) )
 {
   $register_comment = true;
   $author = !empty($_POST['author'])?$_POST['author']:$lang['guest'];
@@ -133,7 +133,7 @@ if ($page['show_comments'])
   {
     $page['start'] = 0;
   }
-  
+
   $page['navigation_bar'] = create_navigation_bar(
     duplicate_picture_URL(array(), array('start')),
     $row['nb_comments'],
@@ -141,7 +141,7 @@ if ($page['show_comments'])
     $conf['nb_comment_page'],
     true // We want a clean URL
     );
-  
+
   $template->assign_block_vars(
     'comments',
     array(
@@ -170,12 +170,12 @@ SELECT id,author,date,image_id,content
           'COMMENT_AUTHOR' => empty($row['author'])
             ? $lang['guest']
             : $row['author'],
-          
+
           'COMMENT_DATE' => format_date(
             $row['date'],
             'mysql_datetime',
             true),
-          
+
           'COMMENT' => parse_comment_content($row['content']),
           )
         );
@@ -186,9 +186,9 @@ SELECT id,author,date,image_id,content
           'comments.comment.delete',
           array(
             'U_COMMENT_DELETE' =>
-              $url_self
-              .'&amp;action=delete_comment'
-              .'&amp;comment_to_delete='.$row['id']
+              add_url_param( $url_self,
+                  'action=delete_comment&amp;comment_to_delete='.$row['id']
+                )
             )
           );
       }
diff --git a/include/picture_rate.inc.php b/include/picture_rate.inc.php
index 7f765e759..e994b3e44 100644
--- a/include/picture_rate.inc.php
+++ b/include/picture_rate.inc.php
@@ -27,7 +27,7 @@
 
 /**
  * This file is included by the picture page to manage rates
- * 
+ *
  */
 
 if ($conf['rate'])
@@ -113,7 +113,7 @@ SELECT COUNT(rate) AS count
         'rate.rate_option',
         array(
           'OPTION'    => $mark,
-          'URL'       => $url_self.'&amp;action=rate&amp;rate='.$mark,
+          'URL'       => add_url_param($url_self,'action=rate&amp;rate='.$mark),
           'SEPARATOR' => ($num > 0 ? '|' : ''),
           )
         );
diff --git a/include/section_init.inc.php b/include/section_init.inc.php
index 0bb82eadf..d225e7871 100644
--- a/include/section_init.inc.php
+++ b/include/section_init.inc.php
@@ -40,7 +40,9 @@
  * display
  */
 
-// "index.php?/category/12-foo/start-24&action=fill_caddie" must return :
+// "index.php?/category/12-foo/start-24&action=fill_caddie" or
+// "index.php/category/12-foo/start-24&action=fill_caddie"
+// must return :
 //
 // array(
 //   'section'  => 'categories',
@@ -51,174 +53,186 @@
 
 $page['section'] = 'categories';
 
-foreach (array_keys($_GET) as $keynum => $key)
+if ( isset($_SERVER["PATH_INFO"]) )
 {
-  if (0 == $keynum)
+  $rewritten = $_SERVER["PATH_INFO"];
+  $rewritten = str_replace('//', '/', $rewritten);
+  $path_count = count( explode('/', $rewritten) );
+  $page['root_path'] = PHPWG_ROOT_PATH.str_repeat('../', $path_count-1);
+}
+else
+{
+  $rewritten = '';
+  foreach (array_keys($_GET) as $keynum => $key)
   {
-    // deleting first "/" if displayed
-    $tokens = explode(
-      '/',
-      preg_replace('#^/#', '', $key)
-      );
-
-    // $tokens = array(
-    //   0 => category,
-    //   1 => 12-foo,
-    //   2 => start-24
-    //   );
-
-    $next_token = 0;
+    $rewritten = $key;
+    break;
+  }
+  $page['root_path'] = PHPWG_ROOT_PATH;
+}
+//phpinfo();
+// deleting first "/" if displayed
+$tokens = explode(
+  '/',
+  preg_replace('#^/#', '', $rewritten)
+  );
+// $tokens = array(
+//   0 => category,
+//   1 => 12-foo,
+//   2 => start-24
+//   );
 
-    if (basename($_SERVER['PHP_SELF']) == 'picture.php')
-    {
-      // the first token must be the numeric identifier of the picture
-      preg_match('/(\d+)/', $tokens[$next_token], $matches);
-      if (!isset($matches[1]))
-      {
-        die('Fatal: picture identifier is missing');
-      }
-      $page['image_id'] = $matches[1];
+$next_token = 0;
+if (basename($_SERVER['SCRIPT_NAME']) == 'picture.php')
+{
 
-      $next_token++;
-    }
+  // the first token must be the numeric identifier of the picture
+  preg_match('/(\d+)/', $tokens[$next_token], $matches);
+  if (!isset($matches[1]))
+  {
+    die('Fatal: picture identifier is missing');
+  }
+  $page['image_id'] = $matches[1];
 
-    if (0 === strpos($tokens[$next_token], 'cat'))
-    {
-      $page['section'] = 'categories';
-      $next_token++;
+  $next_token++;
+}
 
-      if (isset($tokens[$next_token])
-          and preg_match('/^(\d+)/', $tokens[$next_token], $matches))
-      {
-        $page['category'] = $matches[1];
-        $next_token++;
-      }
-    }
-    else if (0 === strpos($tokens[$next_token], 'tag'))
-    {
-      $page['section'] = 'tags';
-      $page['tags'] = array();
+if (0 === strpos($tokens[$next_token], 'cat'))
+{
+  $page['section'] = 'categories';
+  $next_token++;
 
-      $next_token++;
+  if (isset($tokens[$next_token])
+      and preg_match('/^(\d+)/', $tokens[$next_token], $matches))
+  {
+    $page['category'] = $matches[1];
+    $next_token++;
+  }
+}
+else if (0 === strpos($tokens[$next_token], 'tag'))
+{
+  $page['section'] = 'tags';
+  $page['tags'] = array();
 
-      for ($i = $next_token; ; $i++)
-      {
-        if (!isset($tokens[$i]))
-        {
-          break;
-        }
-
-        preg_match('/^(\d+)/', $tokens[$i], $matches);
-        if (!isset($matches[1]))
-        {
-          if (0 == count($page['tags']))
-          {
-            die('Fatal: at least one tag required');
-          }
-          else
-          {
-            break;
-          }
-        }
-        array_push($page['tags'], $matches[1]);
-      }
+  $next_token++;
 
-      $next_token = $i;
-    }
-    else if (0 === strpos($tokens[$next_token], 'fav'))
-    {
-      $page['section'] = 'favorites';
-      $next_token++;
-    }
-    else if ('most_visited' == $tokens[$next_token])
-    {
-      $page['section'] = 'most_visited';
-      $next_token++;
-    }
-    else if ('best_rated' == $tokens[$next_token])
-    {
-      $page['section'] = 'best_rated';
-      $next_token++;
-    }
-    else if ('recent_pics' == $tokens[$next_token])
-    {
-      $page['section'] = 'recent_pics';
-      $next_token++;
-    }
-    else if ('recent_cats' == $tokens[$next_token])
+  for ($i = $next_token; ; $i++)
+  {
+    if (!isset($tokens[$i]))
     {
-      $page['section'] = 'recent_cats';
-      $next_token++;
+      break;
     }
-    else if ('search' == $tokens[$next_token])
-    {
-      $page['section'] = 'search';
-      $next_token++;
 
-      preg_match('/(\d+)/', $tokens[$next_token], $matches);
-      if (!isset($matches[1]))
-      {
-        die('Fatal: search identifier is missing');
-      }
-      $page['search'] = $matches[1];
-      $next_token++;
-    }
-    else if ('list' == $tokens[$next_token])
+    preg_match('/^(\d+)/', $tokens[$i], $matches);
+    if (!isset($matches[1]))
     {
-      $page['section'] = 'list';
-      $next_token++;
-
-      $page['list'] = array();
-      if (!preg_match('/^\d+(,\d+)*$/', $tokens[$next_token]))
+      if (0 == count($page['tags']))
       {
-        die('wrong format on list GET parameter');
+        die('Fatal: at least one tag required');
       }
-      foreach (explode(',', $tokens[$next_token]) as $image_id)
+      else
       {
-        array_push($page['list'], $image_id);
+        break;
       }
-      $next_token++;
-    }
-    else
-    {
-      $page['section'] = 'categories';
-      $next_token++;
     }
+    array_push($page['tags'], $matches[1]);
+  }
 
-    for ($i = $next_token; ; $i++)
-    {
-      if (!isset($tokens[$i]))
-      {
-        break;
-      }
+  $next_token = $i;
+}
+else if (0 === strpos($tokens[$next_token], 'fav'))
+{
+  $page['section'] = 'favorites';
+  $next_token++;
+}
+else if ('most_visited' == $tokens[$next_token])
+{
+  $page['section'] = 'most_visited';
+  $next_token++;
+}
+else if ('best_rated' == $tokens[$next_token])
+{
+  $page['section'] = 'best_rated';
+  $next_token++;
+}
+else if ('recent_pics' == $tokens[$next_token])
+{
+  $page['section'] = 'recent_pics';
+  $next_token++;
+}
+else if ('recent_cats' == $tokens[$next_token])
+{
+  $page['section'] = 'recent_cats';
+  $next_token++;
+}
+else if ('search' == $tokens[$next_token])
+{
+  $page['section'] = 'search';
+  $next_token++;
 
-      if (preg_match('/^start-(\d+)/', $tokens[$i], $matches))
-      {
-        $page['start'] = $matches[1];
-      }
+  preg_match('/(\d+)/', $tokens[$next_token], $matches);
+  if (!isset($matches[1]))
+  {
+    die('Fatal: search identifier is missing');
+  }
+  $page['search'] = $matches[1];
+  $next_token++;
+}
+else if ('list' == $tokens[$next_token])
+{
+  $page['section'] = 'list';
+  $next_token++;
+
+  $page['list'] = array();
+  if (!preg_match('/^\d+(,\d+)*$/', $tokens[$next_token]))
+  {
+    die('wrong format on list GET parameter');
+  }
+  foreach (explode(',', $tokens[$next_token]) as $image_id)
+  {
+    array_push($page['list'], $image_id);
+  }
+  $next_token++;
+}
+else
+{
+  $page['section'] = 'categories';
+  $next_token++;
+}
 
-      if (preg_match('/^posted|created/', $tokens[$i] ))
+for ($i = $next_token; ; $i++)
+{
+  if (!isset($tokens[$i]))
+  {
+    break;
+  }
+
+  if (preg_match('/^start-(\d+)/', $tokens[$i], $matches))
+  {
+    $page['start'] = $matches[1];
+  }
+
+  if (preg_match('/^posted|created/', $tokens[$i] ))
+  {
+    $chronology_tokens = explode('-', $tokens[$i] );
+    $page['chronology_field'] = $chronology_tokens[0];
+    array_shift($chronology_tokens);
+    $page['chronology_style'] = $chronology_tokens[0];
+    array_shift($chronology_tokens);
+    if ( count($chronology_tokens)>0 )
+    {
+      if ('list'==$chronology_tokens[0] or
+          'calendar'==$chronology_tokens[0])
       {
-        $chronology_tokens = explode('-', $tokens[$i] );
-        $page['chronology']['field'] = $chronology_tokens[0];
-        array_shift($chronology_tokens);
-        $page['chronology']['style'] = $chronology_tokens[0];
+        $page['chronology_view'] = $chronology_tokens[0];
         array_shift($chronology_tokens);
-        if ( count($chronology_tokens)>0 )
-        {
-          if ('list'==$chronology_tokens[0] or
-              'calendar'==$chronology_tokens[0])
-          {
-            $page['chronology']['view'] = $chronology_tokens[0];
-            array_shift($chronology_tokens);
-          }
-          $page['chronology_date'] = $chronology_tokens;
-        }
       }
+      $page['chronology_date'] = $chronology_tokens;
     }
   }
 }
 
+
 // $page['nb_image_page'] is the number of picture to display on this page
 // By default, it is the same as the $user['nb_image_page']
 $page['nb_image_page'] = $user['nb_image_page'];
@@ -469,13 +483,10 @@ SELECT DISTINCT(id)
 // |                             chronology                                |
 // +-----------------------------------------------------------------------+
 
-if (isset($page['chronology']))
+if (isset($page['chronology_field']))
 {
   include_once( PHPWG_ROOT_PATH.'include/functions_calendar.inc.php' );
   initialize_calendar();
 }
 
-// echo '<pre>'; print_r($page); echo '</pre>';
-
-
 ?>
\ No newline at end of file