diff -r 000000000000 -r 902822492a68 plugins/WhosOnline.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plugins/WhosOnline.php	Wed Jun 13 16:03:00 2007 -0400
@@ -0,0 +1,145 @@
+<?php
+/*
+Plugin Name: Who's Online
+Plugin URI: javascript: // No URL yet, stay tuned!
+Description: This plugin tracks who is currently online. 3 queries per page request. This plugin works ONLY with MySQL and will likely be difficult to port because it uses unique indices and the REPLACE command.
+Author: Dan Fuhry
+Version: 0.1
+Author URI: http://www.enanocms.org/
+*/
+
+/*
+ * Who's Online plugin for Enano
+ * Version 0.1
+ * Copyright (C) 2007 Dan Fuhry
+ *
+ * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
+ *
+ * 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 details.
+ */
+
+global $whos_online;
+$whos_online = Array('not_yet_initialized');
+
+// First things first - create the table if needed
+$ver = getConfig('whos_online_version');
+if($ver != '0.1')
+{
+  if(!
+    $db->sql_query('DROP TABLE IF EXISTS '.table_prefix.'online;')
+    ) $db->_die('Could not clean out old who\'s-online table');
+  // The key on username allows the REPLACE command later, to save queries
+  if(!$db->sql_query('CREATE TABLE '.table_prefix.'online(
+        entry_id int(12) UNSIGNED NOT NULL auto_increment,
+        user_id int(12) NOT NULL,
+        username varchar(63) NOT NULL,
+        last_load int(12) NOT NULL,
+        PRIMARY KEY ( entry_id ),
+        KEY ( username )
+      );')
+    ) $db->_die('Could not create new who\'s-online table');
+  if(!$db->sql_query('CREATE UNIQUE INDEX '.table_prefix.'onluser ON '.table_prefix.'online(username);'))
+    $db->_die('Could not create index on username column.');
+  setConfig('whos_online_version', '0.1');
+}
+
+$plugins->attachHook('session_started', '__WhosOnline_UserCount();');
+$plugins->attachHook('login_success', '__WhosOnline_logonhandler();');
+$plugins->attachHook('logout_success', '__WhosOnline_logoffhandler($ou, $oid, $level);');
+
+function __WhosOnline_UserCount()
+{
+  global $db, $session, $paths, $template, $plugins; // Common objects
+  global $whos_online;
+  $whos_online = Array();
+  $whos_online['users'] = Array();
+  $whos_online['guests'] = Array();
+  $q = $db->sql_query('REPLACE INTO '.table_prefix.'online SET user_id='.$session->user_id.',username=\''.$db->escape($session->username).'\',last_load='.time().';'); if(!$q) $db->_die('');
+  $q = $db->sql_query('DELETE FROM '.table_prefix.'online WHERE last_load<'.( time() - 60*60*24 ).';'); if(!$q) $db->_die('');
+  $q = $db->sql_query('SELECT o.username,o.user_id,u.user_level FROM '.table_prefix.'online AS o
+    LEFT JOIN '.table_prefix.'users AS u
+      ON u.user_id=o.user_id
+    WHERE last_load>'.( time() - 60*5 - 1 ).' ORDER BY username ASC'); if(!$q) $db->_die('');
+  $num_guests = 0;
+  $num_users = 0;
+  $users = Array();
+  while ( $row = $db->fetchrow() )
+  {
+    ( $row['user_id'] == 1 ) ? $num_guests++ : $num_users++;
+    if($row['user_id'] > 1)
+    {
+      switch($row['user_level'])
+      {
+        case USER_LEVEL_MEMBER:
+        default:
+          $color = '303030';
+          $weight = 'normal';
+          break;
+        case USER_LEVEL_MOD:
+          $color = '00AA00';
+          $weight = 'bold';
+          break;
+        case USER_LEVEL_ADMIN:
+          $color = 'AA0000';
+          $weight = 'bold';
+          break;
+      }
+      $users[] = "<a href='".makeUrlNS('User', str_replace(' ', '_', $row['username']))."' style='color: #$color; font-weight: $weight'>{$row['username']}</a>";
+      $whos_online['users'][] = $row['username'];
+    }
+    else
+    {
+      $whos_online['guests'][] = $row['username'];
+    }
+  }
+  $total = $num_guests + $num_users;
+  $ms = ( $num_users == 1 ) ? '' : 's';
+  $gs = ( $num_guests == 1 ) ? '' : 's';
+  $ts = ( $total == 1 ) ? '' : 's';
+  $is_are = ( $total == 1 ) ? 'is' : 'are';
+  $users = implode(', ', $users);
+  $online_main = ( $num_users > 0 ) ? "<br />
+               Users online right now:
+               <div style='max-height: 100px; clip: rect(0px,auto,auto,0px); overflow: auto;'>
+               $users
+               </div>
+               Legend:<br /><span style='color: #00AA00; font-weight: bold;'>Moderators</span> :: <span style='color: #AA0000; font-weight: bold;'>Administrators</span>"
+               : '';
+  $html = "<div style='padding: 5px;'>
+             <small>
+               There $is_are <b>$total</b> user$ts online :: <b>$num_guests</b> guest$gs and <b>$num_users</b> member$ms
+               $online_main
+             </small>
+           </div>";
+  $template->sidebar_widget('Who\'s Online', $html);
+}
+
+function __WhosOnline_logonhandler()
+{
+  global $db, $session, $paths, $template, $plugins; // Common objects
+  $q = $db->sql_query('DELETE FROM '.table_prefix.'online WHERE user_id=1 AND username=\''.$db->escape($_SERVER['REMOTE_ADDR']).'\';');
+  if(!$q)
+    echo $db->get_error();
+  if(!$session->theme)
+    $session->register_guest_session();
+  $template->load_theme($session->theme, $session->style);
+  __WhosOnline_UserCount();
+}
+
+function __WhosOnline_logoffhandler($username, $user_id, $level)
+{
+  if($level <= USER_LEVEL_MEMBER)
+  {
+    global $db, $session, $paths, $template, $plugins; // Common objects
+    $q = $db->sql_query('DELETE FROM '.table_prefix.'online WHERE user_id=\''.intval($user_id).'\' AND username=\''.$db->escape($username).'\';');
+    if(!$q)
+      echo $db->get_error();
+    $q = $db->sql_query('REPLACE INTO '.table_prefix.'online SET user_id=1,username=\''.$db->escape($_SERVER['REMOTE_ADDR']).'\',last_load='.time().';'); if(!$q) $db->_die('');
+    if(!$q)
+      echo $db->get_error();
+  }
+}
+ 
+?>