feature 606: search engine spider restrictions (meta robots)

git-svn-id: http://piwigo.org/svn/trunk@1703 68402e56-0260-453c-a942-63ccdbb3a9ee

7 files changed, 67 insertions, 28 deletions

diff --git a/include/menubar.inc.php b/include/menubar.inc.php
index d5535ca12..a57db5ea7 100755..100644
--- a/include/menubar.inc.php
+++ b/include/menubar.inc.php
@@ -2,7 +2,7 @@
 // +-----------------------------------------------------------------------+
 // | PhpWebGallery - a PHP based picture gallery                           |
 // | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
-// | Copyright (C) 2003-2006 PhpWebGallery Team - http://phpwebgallery.net |
+// | Copyright (C) 2003-2007 PhpWebGallery Team - http://phpwebgallery.net |
 // +-----------------------------------------------------------------------+
 // | branch        : BSF (Best So Far)
 // | file          : $Id$
@@ -187,7 +187,8 @@ $template->assign_block_vars(
   array(
     'URL' => get_root_url().'random.php',
     'TITLE' => $lang['random_cat_hint'],
-    'NAME' => $lang['random_cat']
+    'NAME' => $lang['random_cat'],
+    'REL'=> 'rel="nofollow"'
     ));
 
 // recent pics
@@ -196,7 +197,7 @@ $template->assign_block_vars(
   array(
     'URL' => make_index_url(array('section' => 'recent_pics')),
     'TITLE' => $lang['recent_pics_cat_hint'],
-    'NAME' => $lang['recent_pics_cat']
+    'NAME' => $lang['recent_pics_cat'],
     ));
 // recent cats
 $template->assign_block_vars(
@@ -204,7 +205,7 @@ $template->assign_block_vars(
   array(
     'URL' => make_index_url(array('section' => 'recent_cats')),
     'TITLE' => $lang['recent_cats_cat_hint'],
-    'NAME' => $lang['recent_cats_cat']
+    'NAME' => $lang['recent_cats_cat'],
     ));
 
 // calendar
@@ -221,7 +222,8 @@ $template->assign_block_vars(
         )
       ),
     'TITLE' => $lang['calendar_hint'],
-    'NAME' => $lang['calendar']
+    'NAME' => $lang['calendar'],
+    'REL'=> 'rel="nofollow"'
     )
   );
 //--------------------------------------------------------------------- summary
diff --git a/include/page_header.php b/include/page_header.php
index 2a82d5e4b..8b0d69d2d 100644
--- a/include/page_header.php
+++ b/include/page_header.php
@@ -2,10 +2,10 @@
 // +-----------------------------------------------------------------------+
 // | PhpWebGallery - a PHP based picture gallery                           |
 // | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
-// | Copyright (C) 2003-2006 PhpWebGallery Team - http://phpwebgallery.net |
+// | Copyright (C) 2003-2007 PhpWebGallery Team - http://phpwebgallery.net |
 // +-----------------------------------------------------------------------+
 // | branch        : BSF (Best So Far)
-// | file          : $RCSfile$
+// | file          : $Id$
 // | last update   : $Date$
 // | last modifier : $Author$
 // | revision      : $Revision$
@@ -71,6 +71,18 @@ if (count($header_notes) > 0)
   }
 }
 
+if ( !empty($page['meta_robots']) )
+{
+  $template->assign_block_vars('head_element',
+      array(
+          'CONTENT' =>
+              '<meta name="robots" content="'
+              .implode(',', array_keys($page['meta_robots']))
+              .'">'
+        )
+    );
+}
+
 // refresh
 if ( isset( $refresh ) and intval($refresh) >= 0
     and isset( $url_link ) and isset( $redirect_msg ) )
diff --git a/include/section_init.inc.php b/include/section_init.inc.php
index 2911d60cc..3e2e39187 100644
--- a/include/section_init.inc.php
+++ b/include/section_init.inc.php
@@ -2,7 +2,7 @@
 // +-----------------------------------------------------------------------+
 // | PhpWebGallery - a PHP based picture gallery                           |
 // | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
-// | Copyright (C) 2003-2006 PhpWebGallery Team - http://phpwebgallery.net |
+// | Copyright (C) 2003-2007 PhpWebGallery Team - http://phpwebgallery.net |
 // +-----------------------------------------------------------------------+
 // | branch        : BSF (Best So Far)
 // | file          : $Id$
@@ -247,7 +247,7 @@ else if ('list' == $tokens[$next_token])
   $next_token++;
 
   $page['list'] = array();
-  
+
   // No pictures
   if (empty($tokens[$next_token]))
   {
@@ -350,9 +350,9 @@ if ('categories' == $page['section'])
         'cat_commentable'    => $result['commentable'],
         'cat_id_uppercat'    => $result['id_uppercat'],
         'uppercats'          => $result['uppercats'],
-        'title'             => 
+        'title'             =>
           get_cat_display_name($result['name'], '', false),
-        'thumbnails_include' => 
+        'thumbnails_include' =>
           (($result['nb_images'] > 0) or (isset($page['flat_recent_cat'])))
           ? 'include/category_default.inc.php'
           : 'include/category_cats.inc.php'
@@ -362,7 +362,7 @@ if ('categories' == $page['section'])
   else
   {
     $page['title'] = $lang['no_category'];
-    $page['thumbnails_include'] = 
+    $page['thumbnails_include'] =
       (isset($page['flat_recent_cat']))
           ? 'include/category_default.inc.php'
           : 'include/category_cats.inc.php';
@@ -373,11 +373,11 @@ if ('categories' == $page['section'])
     $page['title'] = $lang['recent_pics_cat'].' : '.$page['title'] ;
   }
 
-  if 
+  if
     (
       (!isset($page['chronology_field'])) and
       (
-        (isset($page['category'])) or 
+        (isset($page['category'])) or
         (isset($page['flat_recent_cat']))
       )
     )
@@ -458,7 +458,7 @@ SELECT distinct image_id
 // special sections
 else
 {
-  $forbidden = 
+  $forbidden =
     get_sql_condition_FandF
     (
       array
@@ -729,5 +729,28 @@ SELECT id,file
   }
 }
 
+// add meta robots noindex, nofollow to avoid unnecesary robot crawls
+$page['meta_robots']=array();
+if ( isset($page['chronology_field']) or isset($page['flat_recent_cat'])
+      or 'list'==$page['section'] or 'recent_pics'==$page['section'] )
+{
+  $page['meta_robots']=array('noindex'=>1, 'nofollow'=>1);
+}
+elseif ('tags' == $page['section'])
+{
+  if ( count($page['tag_ids'])>1 )
+  {
+    $page['meta_robots']=array('noindex'=>1, 'nofollow'=>1);
+  }
+}
+elseif ('recent_cats'==$page['section'])
+{
+  $page['meta_robots']['nofollow']=1;
+}
+if ( $filter['enabled'] )
+{
+  $page['meta_robots']['noindex']=1;
+}
+
 trigger_action('loc_end_section_init');
 ?>
\ No newline at end of file
diff --git a/notification.php b/notification.php
index 177ddb654..a1250428c 100644
--- a/notification.php
+++ b/notification.php
@@ -2,10 +2,10 @@
 // +-----------------------------------------------------------------------+
 // | 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 |
+// | Copyright (C) 2003-2007 PhpWebGallery Team - http://phpwebgallery.net |
 // +-----------------------------------------------------------------------+
 // | branch        : BSF (Best So Far)
-// | file          : $RCSfile$
+// | file          : $Id$
 // | last update   : $Date$
 // | last modifier : $Author$
 // | revision      : $Revision$
@@ -60,11 +60,8 @@ $feed_image_only_url=$feed_url.'&amp;image_only';
 
 $title = l10n('Notification');
 $page['body_id'] = 'theNotificationPage';
-$template->assign_block_vars('head_element',
-    array(
-      'CONTENT' => '<meta name="robots" content="noindex,nofollow">'
-      )
-  );
+$page['meta_robots']=array('noindex'=>1, 'nofollow'=>1);
+
 $template->assign_block_vars('head_element',
     array(
       'CONTENT' => '<link rel="alternate" type="application/rss+xml" href="'.$feed_url.'">'
diff --git a/picture.php b/picture.php
index 220490238..d08a2779d 100644
--- a/picture.php
+++ b/picture.php
@@ -2,10 +2,10 @@
 // +-----------------------------------------------------------------------+
 // | PhpWebGallery - a PHP based picture gallery                           |
 // | Copyright (C) 2002-2003 Pierrick LE GALL - pierrick@phpwebgallery.net |
-// | Copyright (C) 2003-2006 PhpWebGallery Team - http://phpwebgallery.net |
+// | Copyright (C) 2003-2007 PhpWebGallery Team - http://phpwebgallery.net |
 // +-----------------------------------------------------------------------+
 // | branch        : BSF (Best So Far)
-// | file          : $RCSfile$
+// | file          : $Id$
 // | last update   : $Date$
 // | last modifier : $Author$
 // | revision      : $Revision$
@@ -427,6 +427,7 @@ if ( isset( $_GET['slideshow'] ) and isset($page['next_item']) )
       array('slideshow'=>$refresh)
     );
   $redirect_msg = nl2br(l10n('redirect_msg'));
+  $page['meta_robots']=array('noindex'=>1, 'nofollow'=>1);
 }
 
 $title_nb = ($page['current_rank'] + 1).'/'.$page['cat_nb_images'];
@@ -447,6 +448,10 @@ if ($metadata_showable)
   {
     $url_metadata = add_url_params( $url_metadata, array('metadata'=>null) );
   }
+  else
+  {
+    $page['meta_robots']=array('noindex'=>1, 'nofollow'=>1);
+  }
 }
 
 $page['body_id'] = 'thePicturePage';
diff --git a/template/yoga/index.tpl b/template/yoga/index.tpl
index b0c2e43dc..2252cf0e9 100644
--- a/template/yoga/index.tpl
+++ b/template/yoga/index.tpl
@@ -32,7 +32,7 @@
       <!-- END mode_normal -->
 
       <!-- BEGIN flat_recent_cat -->
-      <li><a href="{flat_recent_cat.URL}" title="{lang:flat_recent_cat_hint}"><img src="{pwg_root}{themeconf:icon_dir}/flat_recent_cat.png" class="button" alt="{lang:flat_recent_cat_hint}"></a></li>
+      <li><a href="{flat_recent_cat.URL}" title="{lang:flat_recent_cat_hint}" rel="nofollow"><img src="{pwg_root}{themeconf:icon_dir}/flat_recent_cat.png" class="button" alt="{lang:flat_recent_cat_hint}"></a></li>
       <!-- END flat_recent_cat -->
 
       <!-- BEGIN mode_posted -->
diff --git a/template/yoga/menubar.tpl b/template/yoga/menubar.tpl
index 317a974d8..4a2425ecd 100644
--- a/template/yoga/menubar.tpl
+++ b/template/yoga/menubar.tpl
@@ -14,7 +14,7 @@
 <!-- END links -->
 <dl id="mbCategories">
   <!-- BEGIN start_filter -->
-  <a href="{start_filter.URL}" title="{lang:start_filter_hint}"><img src="{pwg_root}{themeconf:icon_dir}/start_filter.png" class="buttonmenu" alt="{lang:start_filter_hint}"></a>
+  <a href="{start_filter.URL}" title="{lang:start_filter_hint}" rel="nofollow"><img src="{pwg_root}{themeconf:icon_dir}/start_filter.png" class="buttonmenu" alt="{lang:start_filter_hint}"></a>
   <!-- END start_filter -->
   <!-- BEGIN stop_filter -->
   <a href="{stop_filter.URL}" title="{lang:stop_filter_hint}"><img src="{pwg_root}{themeconf:icon_dir}/stop_filter.png" class="buttonmenu" alt="{lang:stop_filter_hint}"></a>
@@ -34,7 +34,7 @@
       <!-- BEGIN tag -->
       <li>
         <!-- BEGIN add -->
-        <a href="{tags.tag.add.URL}" title="{tags.tag.add.TITLE}"><img src="{pwg_root}{themeconf:icon_dir}/add_tag.png" alt="+"></a>
+        <a href="{tags.tag.add.URL}" title="{tags.tag.add.TITLE}" rel="nofollow"><img src="{pwg_root}{themeconf:icon_dir}/add_tag.png" alt="+"></a>
         <!-- END add -->
         <a href="{tags.tag.URL}" class="{tags.tag.CLASS}" title="{tags.tag.TITLE}">{tags.tag.NAME}</a>
       </li>
@@ -49,7 +49,7 @@
   <dd>
     <ul>
       <!-- BEGIN special_cat -->
-      <li><a href="{special_cat.URL}" title="{special_cat.TITLE}">{special_cat.NAME}</a></li>
+      <li><a href="{special_cat.URL}" title="{special_cat.TITLE}" {special_cat.REL}>{special_cat.NAME}</a></li>
       <!-- END special_cat -->
     </ul>
   </dd>