README

A SilverStripe CMS module that will force users to a different hostname when hitting protected URLs.

Requirements

• SilverStripe 3.2.x

Getting Started

• Place the module under your root project directory.
• /dev/build
• Create a restrictedcms.yml file in your project _config/ folder, with config similar to that found in docs/en/restrictedcms.yml.sample

Overview

The restricted CMS module works by intercepting incoming requests to the CMS and comparing them against a set of patterns for particular hosts, to determine whether they should be allowed to be served by the current server.

This provides two layers of protection

• Verifying the HTTP_HOST presented by the end user is allowed to be served by 'this' server
• Allowing requests to particular URLs to be redirected to different hostnames, which in turn may be behind a firewall somewhere.

Specific environment configuration

If you have a separate authoring instance (ie cms.mysite.com) to your main site (eg www.mysite.com), you can specify configuration that is loaded just for the specific environment. Using the sample restrictedcms.yml.sample file, the config blocks for each environment can be included / excluded by making use of the ENV_TYPE_FRONTEND or ENV_TYPE_BACKEND defines from your _ss_environment.php in the respective environments.

As SilverStripe's configuration layer only allows the swapping based on defined properties, you may need a fragment like the following if you're setting these properties via environment variables from your webserver

foreach (array('ENV_PROD', 'ENV_TEST', 'ENV_TYPE_FRONTEND', 'ENV_TYPE_BACKEND') as $envVar) {
    if (getenv($envVar)) {
        define($envVar, 1);
    }
}