phpBB/cron.php

   1 <?php
   2 /**
   3 *
   4 * @package phpBB3
   5 * @version $Id$
   6 * @copyright (c) 2005 phpBB Group
   7 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
   8 *
   9 */
  10
  11 /**
  12 */
  13 define('IN_PHPBB', true);
  14 define('IN_CRON', true);
  15 if (!defined('PHPBB_ROOT_PATH')) define('PHPBB_ROOT_PATH', './');
  16 if (!defined('PHP_EXT')) define('PHP_EXT', substr(strrchr(__FILE__, '.'), 1));
  17 include(PHPBB_ROOT_PATH . 'common.' . PHP_EXT);
  18
  19 // Do not update users last page entry
  20 $user->session_begin(false);
  21 $auth->acl($user->data);
  22
  23 $cron_type = request_var('cron_type', '');
  24 $use_shutdown_function = (@function_exists('register_shutdown_function')) ? true : false;
  25
  26 // Output transparent gif
  27 header('Cache-Control: no-cache');
  28 header('Content-type: image/gif');
  29 header('Content-length: 43');
  30
  31 echo base64_decode('R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==');
  32
  33 // test without flush ;)
  34 // flush();
  35
  36 //
  37 if (!isset(phpbb::$config['cron_lock']))
  38 {
  39         set_config('cron_lock', '0', true);
  40 }
  41
  42 // make sure cron doesn't run multiple times in parallel
  43 if (phpbb::$config['cron_lock'])
  44 {
  45         // if the other process is running more than an hour already we have to assume it
  46         // aborted without cleaning the lock
  47         $time = explode(' ', phpbb::$config['cron_lock']);
  48         $time = $time[0];
  49
  50         if ($time + 3600 >= time())
  51         {
  52                 exit;
  53         }
  54 }
  55
  56 define('CRON_ID', time() . ' ' . unique_id());
  57
  58 $sql = 'UPDATE ' . CONFIG_TABLE . "
  59         SET config_value = '" . $db->sql_escape(CRON_ID) . "'
  60         WHERE config_name = 'cron_lock' AND config_value = '" . $db->sql_escape(phpbb::$config['cron_lock']) . "'";
  61 $db->sql_query($sql);
  62
  63 // another cron process altered the table between script start and UPDATE query so exit
  64 if ($db->sql_affectedrows() != 1)
  65 {
  66         exit;
  67 }
  68
  69 /**
  70 * Run cron-like action
  71 * Real cron-based layer will be introduced in 3.2
  72 */
  73 switch ($cron_type)
  74 {
  75         case 'queue':
  76
  77                 if (time() - phpbb::$config['queue_interval'] <= phpbb::$config['last_queue_run'] || !file_exists(PHPBB_ROOT_PATH . 'cache/queue.' . PHP_EXT))
  78                 {
  79                         break;
  80                 }
  81
  82                 // A user reported using the mail() function while using shutdown does not work. We do not want to risk that.
  83                 if ($use_shutdown_function && !phpbb::$config['smtp_delivery'])
  84                 {
  85                         $use_shutdown_function = false;
  86                 }
  87
  88                 include_once(PHPBB_ROOT_PATH . 'includes/functions_messenger.' . PHP_EXT);
  89                 $queue = new queue();
  90
  91                 if ($use_shutdown_function)
  92                 {
  93                         register_shutdown_function(array(&$queue, 'process'));
  94                 }
  95                 else
  96                 {
  97                         $queue->process();
  98                 }
  99
 100         break;
 101
 102         case 'tidy_cache':
 103
 104                 if (time() - phpbb::$config['cache_gc'] <= phpbb::$config['cache_last_gc'] || !method_exists(phpbb::$acm, 'tidy'))
 105                 {
 106                         break;
 107                 }
 108
 109                 if ($use_shutdown_function)
 110                 {
 111                         register_shutdown_function(array(&phpbb::$acm, 'tidy'));
 112                 }
 113                 else
 114                 {
 115                         phpbb::$acm->tidy();
 116                 }
 117
 118         break;
 119
 120         case 'tidy_search':
 121
 122                 // Select the search method
 123                 $search_type = basename(phpbb::$config['search_type']);
 124
 125                 if (time() - phpbb::$config['search_gc'] <= phpbb::$config['search_last_gc'] || !file_exists(PHPBB_ROOT_PATH . 'includes/search/' . $search_type . '.' . PHP_EXT))
 126                 {
 127                         break;
 128                 }
 129
 130                 include_once(PHPBB_ROOT_PATH . "includes/search/$search_type." . PHP_EXT);
 131
 132                 // We do some additional checks in the module to ensure it can actually be utilised
 133                 $error = false;
 134                 $search = new $search_type($error);
 135
 136                 if ($error)
 137                 {
 138                         break;
 139                 }
 140
 141                 if ($use_shutdown_function)
 142                 {
 143                         register_shutdown_function(array(&$search, 'tidy'));
 144                 }
 145                 else
 146                 {
 147                         $search->tidy();
 148                 }
 149
 150         break;
 151
 152         case 'tidy_warnings':
 153
 154                 if (time() - phpbb::$config['warnings_gc'] <= phpbb::$config['warnings_last_gc'])
 155                 {
 156                         break;
 157                 }
 158
 159                 include_once(PHPBB_ROOT_PATH . 'includes/functions_admin.' . PHP_EXT);
 160
 161                 if ($use_shutdown_function)
 162                 {
 163                         register_shutdown_function('tidy_warnings');
 164                 }
 165                 else
 166                 {
 167                         tidy_warnings();
 168                 }
 169
 170         break;
 171
 172         case 'tidy_database':
 173
 174                 if (time() - phpbb::$config['database_gc'] <= phpbb::$config['database_last_gc'])
 175                 {
 176                         break;
 177                 }
 178
 179                 include_once(PHPBB_ROOT_PATH . 'includes/functions_admin.' . PHP_EXT);
 180
 181                 if ($use_shutdown_function)
 182                 {
 183                         register_shutdown_function('tidy_database');
 184                 }
 185                 else
 186                 {
 187                         tidy_database();
 188                 }
 189
 190         break;
 191
 192         case 'tidy_sessions':
 193
 194                 if (time() - phpbb::$config['session_gc'] <= phpbb::$config['session_last_gc'])
 195                 {
 196                         break;
 197                 }
 198
 199                 if ($use_shutdown_function)
 200                 {
 201                         register_shutdown_function(array(&$user, 'session_gc'));
 202                 }
 203                 else
 204                 {
 205                         $user->session_gc();
 206                 }
 207
 208         break;
 209
 210         case 'prune_forum':
 211
 212                 $forum_id = request_var('f', 0);
 213
 214                 $sql = 'SELECT forum_id, prune_next, enable_prune, prune_days, prune_viewed, forum_flags, prune_freq
 215                         FROM ' . FORUMS_TABLE . "
 216                         WHERE forum_id = $forum_id";
 217                 $result = $db->sql_query($sql);
 218                 $row = $db->sql_fetchrow($result);
 219                 $db->sql_freeresult($result);
 220
 221                 if (!$row)
 222                 {
 223                         break;
 224                 }
 225
 226                 // Do the forum Prune thang
 227                 if ($row['prune_next'] < time() && $row['enable_prune'])
 228                 {
 229                         include_once(PHPBB_ROOT_PATH . 'includes/functions_admin.' . PHP_EXT);
 230
 231                         if ($row['prune_days'])
 232                         {
 233                                 if ($use_shutdown_function)
 234                                 {
 235                                         register_shutdown_function('auto_prune', $row['forum_id'], 'posted', $row['forum_flags'], $row['prune_days'], $row['prune_freq']);
 236                                 }
 237                                 else
 238                                 {
 239                                         auto_prune($row['forum_id'], 'posted', $row['forum_flags'], $row['prune_days'], $row['prune_freq']);
 240                                 }
 241                         }
 242
 243                         if ($row['prune_viewed'])
 244                         {
 245                                 if ($use_shutdown_function)
 246                                 {
 247                                         register_shutdown_function('auto_prune', $row['forum_id'], 'viewed', $row['forum_flags'], $row['prune_viewed'], $row['prune_freq']);
 248                                 }
 249                                 else
 250                                 {
 251                                         auto_prune($row['forum_id'], 'viewed', $row['forum_flags'], $row['prune_viewed'], $row['prune_freq']);
 252                                 }
 253                         }
 254                 }
 255
 256         break;
 257 }
 258
 259 // Unloading cache and closing db after having done the dirty work.
 260 if ($use_shutdown_function)
 261 {
 262         register_shutdown_function('unlock_cron');
 263         register_shutdown_function('garbage_collection');
 264 }
 265 else
 266 {
 267         unlock_cron();
 268         garbage_collection();
 269 }
 270
 271 exit;
 272
 273
 274 /**
 275 * Unlock cron script
 276 */
 277 function unlock_cron()
 278 {
 279         global $db;
 280
 281         $sql = 'UPDATE ' . CONFIG_TABLE . "
 282                 SET config_value = '0'
 283                 WHERE config_name = 'cron_lock' AND config_value = '" . $db->sql_escape(CRON_ID) . "'";
 284         $db->sql_query($sql);
 285 }
 286
 287 ?>