1 | <?php
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2 | /**
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3 | *
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4 | * @package phpBB3
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5 | * @version $Id: cron.php 8479 2008-03-29 00:22:48Z naderman $
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6 | * @copyright (c) 2005 phpBB Group
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7 | * @license http://opensource.org/licenses/gpl-license.php GNU Public License
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8 | *
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9 | */
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10 |
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11 | /**
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12 | */
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13 | define('IN_PHPBB', true);
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14 | define('IN_CRON', true);
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15 | $phpbb_root_path = (defined('PHPBB_ROOT_PATH')) ? PHPBB_ROOT_PATH : './';
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16 | $phpEx = substr(strrchr(__FILE__, '.'), 1);
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17 | include($phpbb_root_path . 'common.' . $phpEx);
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18 |
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19 | // Do not update users last page entry
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20 | $user->session_begin(false);
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21 | $auth->acl($user->data);
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22 |
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23 | $cron_type = request_var('cron_type', '');
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24 | $use_shutdown_function = (@function_exists('register_shutdown_function')) ? true : false;
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25 |
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26 | // Output transparent gif
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27 | header('Cache-Control: no-cache');
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28 | header('Content-type: image/gif');
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29 | header('Content-length: 43');
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30 |
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31 | echo base64_decode('R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==');
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32 |
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33 | // test without flush ;)
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34 | // flush();
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35 |
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36 | //
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37 | if (!isset($config['cron_lock']))
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38 | {
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39 | set_config('cron_lock', '0', true);
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40 | }
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41 |
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42 | // make sure cron doesn't run multiple times in parallel
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43 | if ($config['cron_lock'])
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44 | {
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45 | // if the other process is running more than an hour already we have to assume it
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46 | // aborted without cleaning the lock
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47 | $time = explode(' ', $config['cron_lock']);
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48 | $time = $time[0];
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49 |
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50 | if ($time + 3600 >= time())
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51 | {
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52 | exit;
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53 | }
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54 | }
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55 |
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56 | define('CRON_ID', time() . ' ' . unique_id());
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57 |
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58 | $sql = 'UPDATE ' . CONFIG_TABLE . "
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59 | SET config_value = '" . $db->sql_escape(CRON_ID) . "'
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60 | WHERE config_name = 'cron_lock' AND config_value = '" . $db->sql_escape($config['cron_lock']) . "'";
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61 | $db->sql_query($sql);
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62 |
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63 | // another cron process altered the table between script start and UPDATE query so exit
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64 | if ($db->sql_affectedrows() != 1)
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65 | {
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66 | exit;
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67 | }
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68 |
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69 | /**
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70 | * Run cron-like action
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71 | * Real cron-based layer will be introduced in 3.2
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72 | */
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73 | switch ($cron_type)
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74 | {
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75 | case 'queue':
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76 |
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77 | if (time() - $config['queue_interval'] <= $config['last_queue_run'] || !file_exists($phpbb_root_path . 'cache/queue.' . $phpEx))
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78 | {
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79 | break;
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80 | }
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81 |
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82 | // A user reported using the mail() function while using shutdown does not work. We do not want to risk that.
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83 | if ($use_shutdown_function && !$config['smtp_delivery'])
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84 | {
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85 | $use_shutdown_function = false;
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86 | }
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87 |
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88 | include_once($phpbb_root_path . 'includes/functions_messenger.' . $phpEx);
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89 | $queue = new queue();
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90 |
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91 | if ($use_shutdown_function)
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92 | {
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93 | register_shutdown_function(array(&$queue, 'process'));
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94 | }
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95 | else
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96 | {
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97 | $queue->process();
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98 | }
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99 |
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100 | break;
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101 |
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102 | case 'tidy_cache':
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103 |
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104 | if (time() - $config['cache_gc'] <= $config['cache_last_gc'] || !method_exists($cache, 'tidy'))
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105 | {
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106 | break;
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107 | }
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108 |
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109 | if ($use_shutdown_function)
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110 | {
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111 | register_shutdown_function(array(&$cache, 'tidy'));
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112 | }
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113 | else
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114 | {
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115 | $cache->tidy();
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116 | }
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117 |
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118 | break;
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119 |
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120 | case 'tidy_search':
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121 |
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122 | // Select the search method
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123 | $search_type = basename($config['search_type']);
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124 |
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125 | if (time() - $config['search_gc'] <= $config['search_last_gc'] || !file_exists($phpbb_root_path . 'includes/search/' . $search_type . '.' . $phpEx))
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126 | {
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127 | break;
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128 | }
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129 |
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130 | include_once("{$phpbb_root_path}includes/search/$search_type.$phpEx");
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131 |
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132 | // We do some additional checks in the module to ensure it can actually be utilised
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133 | $error = false;
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134 | $search = new $search_type($error);
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135 |
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136 | if ($error)
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137 | {
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138 | break;
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139 | }
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140 |
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141 | if ($use_shutdown_function)
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142 | {
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143 | register_shutdown_function(array(&$search, 'tidy'));
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144 | }
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145 | else
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146 | {
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147 | $search->tidy();
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148 | }
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149 |
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150 | break;
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151 |
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152 | case 'tidy_warnings':
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153 |
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154 | if (time() - $config['warnings_gc'] <= $config['warnings_last_gc'])
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155 | {
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156 | break;
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157 | }
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158 |
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159 | include_once($phpbb_root_path . 'includes/functions_admin.' . $phpEx);
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160 |
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161 | if ($use_shutdown_function)
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162 | {
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163 | register_shutdown_function('tidy_warnings');
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164 | }
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165 | else
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166 | {
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167 | tidy_warnings();
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168 | }
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169 |
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170 | break;
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171 |
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172 | case 'tidy_database':
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173 |
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174 | if (time() - $config['database_gc'] <= $config['database_last_gc'])
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175 | {
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176 | break;
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177 | }
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178 |
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179 | include_once($phpbb_root_path . 'includes/functions_admin.' . $phpEx);
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180 |
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181 | if ($use_shutdown_function)
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182 | {
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183 | register_shutdown_function('tidy_database');
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184 | }
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185 | else
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186 | {
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187 | tidy_database();
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188 | }
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189 |
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190 | break;
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191 |
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192 | case 'tidy_sessions':
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193 |
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194 | if (time() - $config['session_gc'] <= $config['session_last_gc'])
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195 | {
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196 | break;
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197 | }
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198 |
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199 | if ($use_shutdown_function)
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200 | {
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201 | register_shutdown_function(array(&$user, 'session_gc'));
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202 | }
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203 | else
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204 | {
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205 | $user->session_gc();
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206 | }
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207 |
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208 | break;
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209 |
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210 | case 'prune_forum':
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211 |
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212 | $forum_id = request_var('f', 0);
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213 |
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214 | $sql = 'SELECT forum_id, prune_next, enable_prune, prune_days, prune_viewed, forum_flags, prune_freq
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215 | FROM ' . FORUMS_TABLE . "
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216 | WHERE forum_id = $forum_id";
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217 | $result = $db->sql_query($sql);
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218 | $row = $db->sql_fetchrow($result);
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219 | $db->sql_freeresult($result);
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220 |
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221 | if (!$row)
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222 | {
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223 | break;
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224 | }
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225 |
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226 | // Do the forum Prune thang
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227 | if ($row['prune_next'] < time() && $row['enable_prune'])
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228 | {
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229 | include_once($phpbb_root_path . 'includes/functions_admin.' . $phpEx);
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230 |
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231 | if ($row['prune_days'])
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232 | {
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233 | if ($use_shutdown_function)
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234 | {
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235 | register_shutdown_function('auto_prune', $row['forum_id'], 'posted', $row['forum_flags'], $row['prune_days'], $row['prune_freq']);
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236 | }
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237 | else
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238 | {
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239 | auto_prune($row['forum_id'], 'posted', $row['forum_flags'], $row['prune_days'], $row['prune_freq']);
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240 | }
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241 | }
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242 |
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243 | if ($row['prune_viewed'])
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244 | {
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245 | if ($use_shutdown_function)
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246 | {
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247 | register_shutdown_function('auto_prune', $row['forum_id'], 'viewed', $row['forum_flags'], $row['prune_viewed'], $row['prune_freq']);
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248 | }
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249 | else
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250 | {
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251 | auto_prune($row['forum_id'], 'viewed', $row['forum_flags'], $row['prune_viewed'], $row['prune_freq']);
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252 | }
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253 | }
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254 | }
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255 |
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256 | break;
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257 | }
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258 |
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259 | // Unloading cache and closing db after having done the dirty work.
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260 | if ($use_shutdown_function)
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261 | {
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262 | register_shutdown_function('unlock_cron');
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263 | register_shutdown_function('garbage_collection');
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264 | }
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265 | else
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266 | {
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267 | unlock_cron();
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268 | garbage_collection();
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269 | }
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270 |
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271 | exit;
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272 |
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273 |
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274 | /**
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275 | * Unlock cron script
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276 | */
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277 | function unlock_cron()
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278 | {
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279 | global $db;
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280 |
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281 | $sql = 'UPDATE ' . CONFIG_TABLE . "
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282 | SET config_value = '0'
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283 | WHERE config_name = 'cron_lock' AND config_value = '" . $db->sql_escape(CRON_ID) . "'";
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284 | $db->sql_query($sql);
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285 | }
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286 |
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287 | ?>
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