includes/common.php
changeset 1 fe660c52c48f
child 2 0931d60f5bdb
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/includes/common.php	Wed Jun 13 16:07:17 2007 -0400
@@ -0,0 +1,228 @@
+<?php
+
+/*
+ * Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
+ * Version 1.0 (Banshee)
+ * Copyright (C) 2006-2007 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.
+ */
+
+if(isset($_REQUEST['GLOBALS']))
+{
+  ?>
+  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"><html><head><title>Hacking Attempt</title><meta http-equiv="Content-type" content="text/html; charset=utf-8" /></head><style type="text/css">body{background-color:#000;color:#CCC;font-family:trebuchet ms,sans-serif;font-size:9pt;}a{color:#FFF;}</style><body><p>Hacking attempt using <a href="http://www.hardened-php.net/index.76.html">PHP $GLOBALS overwrite vulnerability</a> detected, reported to admin</p><p>You're worse than this guy! Unless you are this guy...</p><p id="billp"><img alt=" " src="about:blank" id="billi" /></p><script type="text/javascript">// <![CDATA[
+  window.onload=function(){counter();setInterval('counter();', 1000);};var text=false;var cnt=10;function counter(){if(!text){text=document.createElement('span');text.id='billc';text.innerHTML=cnt;text.style.fontSize='96pt';text.style.color='#FF0000';p=document.getElementById('billp');p.appendChild(text);}else{if(cnt==1){document.getElementById('billi').src='http://upload.wikimedia.org/wikipedia/commons/7/7f/Bill_Gates_2004_cr.jpg';document.getElementById('billc').innerHTML='';return;}cnt--;document.getElementById('billc').innerHTML=cnt+' ';}}
+  // ]]>
+  </script><p><span style="color:black;">Powered by Enano and valid XHTML 1.1</span></p></body></html>
+  <?php
+  exit;
+}
+
+$version = '1.0';
+
+function microtime_float()
+{
+  list($usec, $sec) = explode(" ", microtime());
+  return ((float)$usec + (float)$sec);
+}
+
+global $_starttime;
+$_starttime = microtime_float();
+
+error_reporting(E_ALL);
+
+if(!defined('ENANO_ROOT')) // ENANO_ROOT is sometimes defined by plugins like AjIM that need the constant before the Enano API is initialized
+  define('ENANO_ROOT', dirname(dirname(__FILE__)));
+
+if(defined('ENANO_DEBUG') && version_compare(PHP_VERSION, '5.0.0') < 0)
+{
+  die(__FILE__.':'.__LINE__.': The debugConsole requires PHP 5.x.x or greater. Please comment out the ENANO_DEBUG constant in your index.php.');
+}
+
+if(defined('ENANO_DEBUG'))
+{
+  require_once(ENANO_ROOT.'/includes/debugger/debugConsole.php');
+} else {
+  function dc_here($m)     { return false; }
+  function dc_dump($a, $g) { return false; }
+  function dc_watch($n)    { return false; }
+  function dc_start_timer($u) { return false; }
+  function dc_stop_timer($m) { return false; }
+}
+
+if ( file_exists( ENANO_ROOT . '/_nightly.php') )
+  require(ENANO_ROOT.'/_nightly.php');
+
+// Start including files. LOTS of files. Yeah!
+require_once(ENANO_ROOT.'/includes/constants.php');
+dc_here('Enano CMS '.$version.' (dev) - debug window<br />Powered by debugConsole');
+dc_here('common: including files');
+require_once(ENANO_ROOT.'/includes/functions.php');
+require_once(ENANO_ROOT.'/includes/dbal.php');
+require_once(ENANO_ROOT.'/includes/paths.php');
+require_once(ENANO_ROOT.'/includes/sessions.php');
+require_once(ENANO_ROOT.'/includes/template.php');
+require_once(ENANO_ROOT.'/includes/plugins.php');
+require_once(ENANO_ROOT.'/includes/comment.php');
+require_once(ENANO_ROOT.'/includes/wikiformat.php');
+require_once(ENANO_ROOT.'/includes/diff.php');
+require_once(ENANO_ROOT.'/includes/render.php');
+require_once(ENANO_ROOT.'/includes/stats.php');
+require_once(ENANO_ROOT.'/includes/pageutils.php');
+require_once(ENANO_ROOT.'/includes/js-compressor.php');
+require_once(ENANO_ROOT.'/includes/rijndael.php');
+require_once(ENANO_ROOT.'/includes/email.php');
+require_once(ENANO_ROOT.'/includes/search.php');
+require_once(ENANO_ROOT.'/includes/json.php');
+require_once(ENANO_ROOT.'/includes/wikiengine/Tables.php');
+require_once(ENANO_ROOT.'/includes/pageprocess.php');
+
+strip_magic_quotes_gpc();
+
+// Enano has five parts: the database abstraction layer (DBAL), the session manager, the path/URL manager, the template engine, and the plugin manager.
+// Each part has its own class and a global var; nearly all Enano functions are handled by one of these five components.
+
+global $db, $session, $paths, $template, $plugins; // Common objects
+global $enano_config; // A global used to cache config information without making loads of queries ;-)
+                      // In addition, $enano_config is used to fetch config information if die_semicritical() is called.
+                      
+global $email;
+
+if(!isset($_SERVER['HTTP_HOST'])) grinding_halt('Cannot get hostname', '<p>Your web browser did not provide the HTTP Host: field. This site requires a modern browser that supports the HTTP 1.1 standard.</p>');
+                     
+$db = new mysql();
+dc_here('common: calling $db->connect();');
+$db->connect(); // Redirects to install.php if an installation is not detected
+
+if(strstr(contentPath, '?')) $sep = '&';
+else $sep = '?';
+define('urlSeparator', $sep);
+unset($sep); // save 10 bytes of memory...
+
+// See if any diagnostic actions have been requested
+if ( isset($_GET['do']) && $_GET['do'] == 'diag' && isset($_GET['sub']) )
+{
+  switch($_GET['sub'])
+  {
+    case 'cookie_destroy':
+      unset($_COOKIE['sid']);
+      setcookie('sid', '', time()-3600*24, scriptPath);
+      setcookie('sid', '', time()-3600*24, scriptPath.'/');
+      die('Session cookie cleared. <a href="'.$_SERVER['PHP_SELF'].'">Continue</a>');
+      break;
+  }
+}
+
+// Select and fetch the site configuration
+dc_here('common: selecting global config data');
+$e = $db->sql_query('SELECT config_name, config_value FROM '.table_prefix.'config;');
+if(!$e) $db->_die('Some critical configuration information could not be selected.');
+else define('ENANO_CONFIG_FETCHED', ''); // Used in die_semicritical to figure out whether to call getConfig() or not
+
+dc_here('common: fetching $enano_config');
+$enano_config = Array();
+while($r = $db->fetchrow())
+{
+  $enano_config[$r['config_name']] = $r['config_value'];
+}
+
+$db->free_result();
+
+if(enano_version(false, true) != $version)
+{
+  grinding_halt('Version mismatch', '<p>It seems that the Enano release we\'re trying to run ('.$version.') is different from the version specified in your database ('.enano_version().'). Perhaps you need to <a href="'.scriptPath.'/upgrade.php">upgrade</a>?</p>');
+}
+
+// Our list of tables included in Enano
+$system_table_list = Array(
+    table_prefix.'categories',
+    table_prefix.'comments',
+    table_prefix.'config',
+    table_prefix.'logs',
+    table_prefix.'page_text',
+    table_prefix.'session_keys',
+    table_prefix.'pages',
+    table_prefix.'users',
+    table_prefix.'themes',
+    table_prefix.'buddies',
+    table_prefix.'banlist',
+    table_prefix.'files',
+    table_prefix.'privmsgs',
+    table_prefix.'sidebar',
+    table_prefix.'hits',
+    table_prefix.'search_index',
+    table_prefix.'groups',
+    table_prefix.'group_members',
+    table_prefix.'acl',
+    table_prefix.'search_cache'
+  );
+
+dc_here('common: initializing base classes');
+$plugins = new pluginLoader();
+
+// So where does the majority of Enano get executed? How about the next nine lines of code :)
+dc_here('common: ok, we\'re set up, starting mainstream execution');
+
+$plugins->loadAll();
+dc_here('common: loading plugins');
+  global $plugins;
+  foreach($plugins->load_list as $f) { include_once $f; } // Can't be in object context when this is done
+
+$session = new sessionManager();
+$paths = new pathManager();
+$template = new template();
+$email = new EmailEncryptor();
+
+define('ENANO_BASE_CLASSES_INITIALIZED', '');
+
+$code = $plugins->setHook('base_classes_initted');
+foreach ( $code as $cmd )
+{
+  eval($cmd);
+}
+  
+$p = RenderMan::strToPageId($paths->get_pageid_from_url());
+if( ( $p[1] == 'Admin' || $p[1] == 'Special' ) && function_exists('page_'.$p[1].'_'.$p[0].'_preloader'))
+{
+  @call_user_func('page_'.$p[1].'_'.$p[0].'_preloader');
+}
+
+$session->start();
+$paths->init();
+
+define('ENANO_MAINSTREAM', '');
+
+// If the site is disabled, bail out, unless we're trying to log in or administer the site
+if(getConfig('site_disabled') == '1')
+{
+  if ( $paths->namespace == 'Admin' || ( $paths->namespace == 'Special' && ( $paths->cpage['urlname_nons'] == 'CSS' || $paths->cpage['urlname_nons'] == 'Administration' || $paths->cpage['urlname_nons'] == 'Login' ) ) )
+  {
+    // do nothing; allow execution to continue
+  }
+  else
+  {
+    if(!$n = getConfig('site_disabled_notice')) $n = 'The administrator has disabled the site. Please check back later.';
+    
+    $text = RenderMan::render($n) . '
+    <div class="info-box">
+      If you have an administrative account, you may <a href="'.makeUrlNS('Special', 'Login').'">log in</a> to the site or <a href="'.makeUrlNS('Special', 'Administration').'">use the administration panel</a>.
+    </div>';
+    $paths->wiki_mode = 0;
+    die_semicritical('Site disabled', $text);
+  }
+}
+
+$code = $plugins->setHook('session_started');
+foreach ( $code as $cmd )
+{
+  eval($cmd);
+}
+
+if(isset($_GET['noheaders'])) $template->no_headers = true;
+
+?>