plugins: first prototype version

git-svn-id: http://piwigo.org/svn/trunk@1578 68402e56-0260-453c-a942-63ccdbb3a9ee

2 files changed, 195 insertions, 0 deletions

diff --git a/admin/include/functions_plugins.inc.php b/admin/include/functions_plugins.inc.php
new file mode 100644
index 000000000..bb85e15f6
--- /dev/null
+++ b/admin/include/functions_plugins.inc.php
@@ -0,0 +1,101 @@
+<?php
+// +-----------------------------------------------------------------------+
+// | PhpWebGallery - a PHP based picture gallery                           |
+// | Copyright (C) 2003-2006 PhpWebGallery Team - http://phpwebgallery.net |
+// +-----------------------------------------------------------------------+
+// | branch        : BSF (Best So Far)
+// | file          : $Id$
+// | 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.                                                                  |
+// +-----------------------------------------------------------------------+
+
+function get_plugins()
+{
+  $plugins = array();
+
+  $dir = opendir(PHPWG_PLUGINS_PATH);
+  while ($file = readdir($dir))
+  {
+    if ($file!='.' and $file!='..')
+    {
+      $path = PHPWG_PLUGINS_PATH.$file;
+      if (is_dir($path) and !is_link($path)
+          and preg_match('/^[a-zA-Z0-9-_]+$/', $file )
+          and file_exists($path.'/index.php')
+          )
+      {
+        $plugin = array('name'=>'?', 'version'=>'?', 'uri'=>'', 'description'=>'');
+        $plg_data = implode( '', file($path.'/index.php') );
+
+        if ( preg_match("|Plugin Name: (.*)|i", $plg_data, $val) )
+        {
+          $plugin['name'] = trim( $val[1] );
+        }
+        if (preg_match("|Version: (.*)|i", $plg_data, $val))
+        {
+          $plugin['version'] = trim($val[1]);
+        }
+        if ( preg_match("|Plugin URI: (.*)|i", $plg_data, $val) )
+        {
+          $plugin['uri'] = $val[1];
+        }
+        if ( preg_match("|Description: (.*)|i", $plg_data, $val) )
+        {
+          $plugin['description'] = trim($val[1]);
+        }
+        $plugins[$file] = $plugin;
+      }
+    }
+  }
+  closedir($dir);
+  return $plugins;
+}
+
+function activate_plugin($plugin_name)
+{
+  global $conf;
+  $arr = get_active_plugins(false);
+  array_push($arr, $plugin_name);
+  if ($arr != array_unique($arr) )
+    return false; // just added the same one
+  $conf['active_plugins'] = implode(',', $arr);
+  pwg_query('
+UPDATE '.CONFIG_TABLE.'
+  SET value="'.$conf['active_plugins'].'"
+  WHERE param="active_plugins"');
+  return true;
+}
+
+function deactivate_plugin($plugin_name)
+{
+  global $conf;
+  $arr = get_active_plugins(false);
+  $idx = array_search($plugin_name, $arr);
+  if ($idx!==false)
+  {
+    unset( $arr[$idx] );
+    $conf['active_plugins'] = implode(',', $arr);
+    pwg_query('
+UPDATE '.CONFIG_TABLE.'
+  SET value="'.$conf['active_plugins'].'"
+  WHERE param="active_plugins"');
+    return true;
+  }
+  return false;
+}
+?>
\ No newline at end of file
diff --git a/admin/plugins.php b/admin/plugins.php
new file mode 100644
index 000000000..04c79aeca
--- /dev/null
+++ b/admin/plugins.php
@@ -0,0 +1,94 @@
+<?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/functions.php');
+include_once(PHPWG_ROOT_PATH.'admin/include/functions_plugins.inc.php');
+check_status(ACCESS_ADMINISTRATOR);
+
+$my_base_url = PHPWG_ROOT_PATH.'admin.php?page=plugins';
+
+if ( isset($_REQUEST['action']) and isset($_REQUEST['plugin'])  )
+{
+  if ( $_REQUEST['action']=='deactivate')
+  {
+    $result = deactivate_plugin( $_REQUEST['plugin'] );
+  }
+  else
+  {
+    $result = activate_plugin( $_REQUEST['plugin'] );
+  }
+  if ($result)
+  { // we need a redirect so that we really reload it
+    redirect($my_base_url.'&amp;'.$_REQUEST['action'].'='.$result);
+  }
+  else
+  {
+    array_push( $page['errors'], 'Plugin activation/deactivation error' );
+  }
+}
+
+
+$active_plugins = get_active_plugins();
+$active_plugins = array_flip($active_plugins);
+
+$plugins = get_plugins();
+
+$template->set_filenames(array('plugins' => 'admin/plugins.tpl'));
+
+if (count($plugins))
+{
+  $template->assign_block_vars( 'plugins', array() );
+  foreach( $plugins as $plugin_id => $plugin )
+  {
+    $action_url = $my_base_url.'&amp;plugin='.$plugin_id;
+    if ( isset( $active_plugins[$plugin_id] ) )
+    {
+      $action_url .= '&amp;action=deactivate';
+      $action_name = l10n('Deactivate');
+    }
+    else
+    {
+      $action_url .= '&amp;action=activate';
+      $action_name = l10n('Activate');
+    }
+    $template->assign_block_vars( 'plugins.plugin',
+        array(
+          'NAME' => $plugin['name'],
+          'DESCRIPTION' => $plugin['description'],
+          'L_ACTION' => $action_name,
+          'U_ACTION' => $action_url,
+          )
+       );
+  }
+}
+$template->assign_var_from_handle('ADMIN_CONTENT', 'plugins');
+?>