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<?php
/**
* This plugin provides a facility to periodically run the Zenphoto backup utility. Use it to
* insure that database backups are done on a regular basis.
*
* <b>NOTE:</b> The WEB site must be visited for this plugin to be able to check if it is time
* to run. Inacative sites may not get backed up as frequently as the interval specifies.
* Of course, if the site is inactive, there probably is little need to do the backup
* in the first place.
*
* Backups are run under the master administrator authority.
*
* @author Stephen Billard (sbillard)
* @package plugins
* @subpackage utilities
*/
$plugin_is_filter = 2 | ADMIN_PLUGIN | THEME_PLUGIN;
$plugin_description = gettext("Periodically backup the Zenphoto database.");
$plugin_author = "Stephen Billard (sbillard)";
$option_interface = 'auto_backup';
if ((getOption('last_backup_run') + getOption('backup_interval') * 86400) < time()) { // register if it is time for a backup
require_once(dirname(dirname(__FILE__)) . '/admin-functions.php');
zp_register_filter('admin_head', 'auto_backup::timer_handler');
zp_register_filter('theme_head', 'auto_backup::timer_handler');
}
/**
* Option handler class
*
*/
class auto_backup {
/**
* class instantiation function
*
*/
function auto_backup() {
setOptionDefault('backup_interval', 7);
setOptionDefault('backups_to_keep', 5);
}
/**
* Reports the supported options
*
* @return array
*/
function getOptionsSupported() {
$options = array(gettext('Run interval') => array('key' => 'backup_interval', 'type' => OPTION_TYPE_TEXTBOX,
'order' => 1,
'desc' => gettext('The run interval (in days) for auto backup.')),
gettext('Backups to keep') => array('key' => 'backups_to_keep', 'type' => OPTION_TYPE_TEXTBOX,
'order' => 0,
'desc' => gettext('Auto backup will keep only this many backup sets. Older sets will be removed.'))
);
if ($d = getOption('last_backup_run')) {
$options[gettext('Last backup')] = array('key' => 'last_backup_run', 'type' => OPTION_TYPE_NOTE,
'order' => 2,
'desc' => '<p class="notebox">' . sprintf(gettext('Auto Backup last ran %s.'), date('Y-m-d H:i:s', $d)) . '</p>');
}
return $options;
}
function handleOption($option, $currentValue) {
}
/**
* Handles the periodic start of the backup/restore utility to backup the database
* @param string $discard
*/
static function timer_handler($discard) {
$curdir = getcwd();
$folder = SERVERPATH . "/" . BACKUPFOLDER;
if (!is_dir($folder)) {
mkdir($folder, FOLDER_MOD);
}
chdir($folder);
$filelist = safe_glob('*' . '.zdb');
$list = array();
foreach ($filelist as $file) {
$list[$file] = filemtime($file);
}
chdir($curdir);
asort($list);
$list = array_flip($list);
$keep = getOption('backups_to_keep');
while (count($list) >= $keep) {
$file = array_shift($list);
@chmod(SERVERPATH . "/" . BACKUPFOLDER . '/' . $file, 0777);
unlink(SERVERPATH . "/" . BACKUPFOLDER . '/' . $file);
}
cron_starter(SERVERPATH . '/' . ZENFOLDER . '/' . UTILITIES_FOLDER . '/backup_restore.php', array('backup' => 1, 'autobackup' => 1, 'compress' => sprintf('%u', getOption('backup_compression')), 'XSRFTag' => 'backup'), 3
);
return $discard;
}
}
?>
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