symphonycms / maintenance_mode

Maintenance Mode for Symphony CMS

Symphony CMS

• Version: 3.0.0
• Date: 27th March 2020
• Release notes
• Changelog
• Github repository
• MIT Licence

Contents

• Overview
• Server requirements
• Responsible Security Disclosure

Quick links

• Installing
• Updating from LTS
• Contributing
• Documentation TOC

Overview

Symphony is a PHP & MySQL based CMS that utilises XML and XSLT as its core technologies. This repository represents version 3.0.0 and is considered stable.

Useful places:

• The Symphony website
• The Symphony forum
• Symphony Extensions
• DEV chat room
• HELP chat room

Server requirements

• PHP 5.6 or 7.0-7.3
• PHP’s LibXML module, with the XSLT extension enabled (--with-xsl)
• MySQL 5.7 or above is recommended
• A webserver (known to be used with Apache, Litespeed, Nginx and Hiawatha)
• Apache’s mod_rewrite module or equivalent
• PHP’s built in json functions, which are enabled by default in PHP 5.2 and above; if they are missing, ensure PHP wasn’t compiled with --disable-json
• PHP’s zlib module
• PHP’s pdo_mysql module

Responsible Security Disclosure

Please follow the guideline for security bug disclosure.

maintenance_mode's Issues

'Enable maintenance mode' checkbox does not toggle it's status after save

symphony: 2.4
maintenance mode: 1.8

---

if i check the button, the site goes in maintenance mode; all ok
but if i want to uncheck it, and go live, the button remain checked.

Symphony Notice: Undefined variable: useragent

Affected Symphony version(s) : 3.0.0
PHP version(s) : 7.3.7
MySQL version(s): 5.7.26 Homebrew
OS(es) : macOS Catalina 10.15.3

The Preferences page throws the following error when the Maintenance Mode extension is enabled for Symphony 3.0:

An error occurred in /Users/stephen/Sites/symphonycms/extensions/maintenance_mode/extension.driver.php around line 93

88         $label = Widget::Label(__('Useragent Whitelist'));
89         $whitelist = json_decode(Symphony::Configuration()->get('useragent_whitelist', 'maintenance_mode'));
90         if (is_array($whitelist) && !empty($whitelist)) {
91             $useragent = implode("\r\n",$whitelist);
92         }
93         $label->appendChild(Widget::Textarea('settings[maintenance_mode][useragent_whitelist]', 5, 50, General::sanitize($useragent)));
94         $group->appendChild($label);
95 
96         // Append help
97         $group->appendChild(new XMLElement('p', __('Any useragent that listed above will be granted access. This eliminates the need to allow a

The error goes away by modifying the conditional.

// Useragent White list
$label = Widget::Label(__('Useragent Whitelist'));
$whitelist = json_decode(Symphony::Configuration()->get('useragent_whitelist', 'maintenance_mode'));
if (is_array($whitelist) && !empty($whitelist)) {
    $useragent = implode("\r\n",$whitelist);
    $label->appendChild(Widget::Textarea('settings[maintenance_mode][useragent_whitelist]', 5, 50, General::sanitize($useragent)));
    $group->appendChild($label);
}

HTTP status: Use 503 Service Unavailable

Hi,

For anonymous visitors, should not Maintenance Mode throw an HTTP status of 503 Service Unavailable? I'm thinking for search engines in particular so they know not to try to reindex a maintenance page for every URL in one's site as currently it appears to send 200 OK.

Thanks!