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<?php
/**
* Provides a means to close access to your site for upgrading and testing.
*
* A button is placed in the <i>Utility functions</i> section of the Admin overview page to allow you
* to manage the state of your site. This button changes function depending on the state of the site. You may
* <i>close</i> a site, move a closed site to <i>test mode</i>, and then <i>open</i> the site.
*
* <i>Closing</i> the site will cause links to the site <i>front end</i> to be redirected to a script in
* the folder <var>plugins/site_upgrade</var>. Access to the admin pages remains available.
* You should close the site while
* you are uploading a new Zenphoto release so that users will not catch the site in an unstable state.
*
* After you have uploaded the new release and run Setup you place the site in <i>test mode</i>. In this mode
* only logged in <i>Administrators</i> can access the <i>front end</i>. You can then, as the administrator, view the
* site to be sure that all your changes are as you wish them to be.
*
* Once your testing is completed satisfactorily you <i>open</i> your site to all visitors.
*
* Change the files in <var>plugins/site_upgrade</var> to meet your needs. (<b>Note</b> these files will
* be copied to that folder during setup the first time you do an install. Setup will not overrite any existing
* versions of these files, so if a change is made to the Zenphoto versions of the files you will have to update
* your copies either by removing them before running setup or by manually applying the Zenphoto changes to your
* files.)
*
*
* The plugin works best if mod_rewrite is active and the <var>.htaccess</var> file exists. If these are not the case
* the plugin will still work in most cases. However if you the release you are upgrading to has significant changes involving
* plugin loading of the front-end site there may be PHP failures due if the site is accessed while the files
* being uploaded are in a mixed release state.
*
* @author Stephen Billard (sbillard)
* @package plugins
* @subpackage admin
*/
$plugin_is_filter = 97|ADMIN_PLUGIN|THEME_PLUGIN;
$plugin_description = gettext('Utility to divert access to the gallery to a screen saying the site is upgrading.');
$plugin_author = "Stephen Billard (sbillard)";
$plugin_notice = (MOD_REWRITE) ? false : gettext('<em>mod_rewrite</em> is not enabled. This plugin may not work without rewrite redirection if the upgrade is significantly different than the running release.');
switch (OFFSET_PATH) {
case 0:
$state = getOption('site_upgrade_state');
if ((!zp_loggedin(ADMIN_RIGHTS) && $state == 'closed_for_test') || $state == 'closed') {
if (isset($_GET['rss'])) {
if (file_exists(SERVERPATH.'/'.USER_PLUGIN_FOLDER.'/site_upgrade/rss-closed.xml')) {
$xml = file_get_contents(SERVERPATH.'/'.USER_PLUGIN_FOLDER.'/site_upgrade/rss-closed.xml');
$xml = preg_replace('~<pubDate>(.*)</pubDate>~', '<pubDate>'.date("r",time()).'</pubDate>', $xml);
echo $xml;
}
} else {
header('location: '.WEBPATH.'/'.USER_PLUGIN_FOLDER.'/site_upgrade/closed.php');
}
exit();
}
break;
case 2:
if (!file_exists(SERVERPATH.'/'.USER_PLUGIN_FOLDER.'/site_upgrade/closed.php')) {
mkdir_recursive(SERVERPATH.'/'.USER_PLUGIN_FOLDER.'/site_upgrade/', FOLDER_MOD);
$html = file_get_contents(SERVERPATH.'/'.ZENFOLDER.'/'.PLUGIN_FOLDER.'/site_upgrade/closed.htm');
$html = sprintf($html, sprintf(gettext('%s upgrade'),
$_zp_gallery->getTitle()),FULLWEBPATH.'/'.ZENFOLDER.'/'.PLUGIN_FOLDER.'/site_upgrade/closed.png',
sprintf(gettext('<strong><em>%s</em></strong> is undergoing an upgrade'),$_zp_gallery->getTitle()), '<a href="'.FULLWEBPATH.'/index.php">'.gettext('Please return later').'</a>',
FULLWEBPATH.'/index.php');
file_put_contents(SERVERPATH.'/'.USER_PLUGIN_FOLDER.'/site_upgrade/closed.htm', $html);
copy(SERVERPATH.'/'.ZENFOLDER.'/'.PLUGIN_FOLDER.'/site_upgrade/closed.php', SERVERPATH.'/'.USER_PLUGIN_FOLDER.'/site_upgrade/closed.php');
}
break;
default:
zp_register_filter('admin_utilities_buttons', 'site_upgrade_button');
zp_register_filter('installation_information', 'site_upgrade_status');
function site_upgrade_status() {
switch (getOption('site_upgrade_state')) {
case 'closed':
?>
<li><?php echo gettext('Site status:');?> <span style="color:RED"><strong><?php echo gettext('The site is closed!'); ?></strong></span></li>
<?php
break;
case 'closed_for_test';
?>
<li><?php echo gettext('Site status:');?> <span style="color:RED"><strong><?php echo gettext('The site is in test mode!'); ?></strong></span></li>
<?php
break;
default:
?>
<li><?php echo gettext('Site status:');?> <strong><?php echo gettext('The site is opened'); ?></strong></li>
<?php
break;
}
}
function site_upgrade_button($buttons) {
$ht = @file_get_contents(SERVERPATH.'/.htaccess');
preg_match('|[# ][ ]*RewriteRule(.*)plugins/site_upgrade/closed|',$ht,$matches);
if (!$matches || strpos($matches[0],'#')===0) {
$state = getOption('site_upgrade_state');
} else {
$state = 'closed';
}
switch ($state) {
case 'closed':
$buttons[] = array(
'XSRFTag'=>'site_upgrade',
'category'=>gettext('Admin'),
'enable'=>true,
'button_text'=>gettext('Site » test mode'),
'formname'=>'site_upgrade.php',
'action'=>WEBPATH.'/'.ZENFOLDER.'/'.PLUGIN_FOLDER.'/site_upgrade/site_upgrade.php',
'icon'=>'images/lock_open.png',
'title'=>gettext('Make the site available for viewing administrators only.'),
'alt'=>'',
'hidden'=>'<input type="hidden" name="siteState" value="closed_for_test" />',
'rights'=> ADMIN_RIGHTS
);
break;
case 'closed_for_test':
$buttons[] = array(
'XSRFTag'=>'site_upgrade',
'category'=>gettext('Admin'),
'enable'=>true,
'button_text'=>gettext('Site » open'),
'formname'=>'site_upgrade.php',
'action'=>WEBPATH.'/'.ZENFOLDER.'/'.PLUGIN_FOLDER.'/site_upgrade/site_upgrade.php',
'icon'=>'images/lock.png',
'title'=>gettext('Make site available for viewing.'),
'alt'=>'',
'hidden'=>'<input type="hidden" name="siteState" value="open" />',
'rights'=> ADMIN_RIGHTS
);
break;
default:
$buttons[] = array(
'XSRFTag'=>'site_upgrade',
'category'=>gettext('Admin'),
'enable'=>true,
'button_text'=>gettext('Site » close'),
'formname'=>'site_upgrade.php',
'action'=>WEBPATH.'/'.ZENFOLDER.'/'.PLUGIN_FOLDER.'/site_upgrade/site_upgrade.php',
'icon'=>'images/lock.png',
'title'=>gettext('Make site unavailable for viewing by redirecting to the "closed.html" page.'),
'alt'=>'',
'hidden'=>'<input type="hidden" name="siteState" value="closed" />',
'rights'=> ADMIN_RIGHTS
);
break;
}
return $buttons;
}
break;
}
?>
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