├── liftoff.php
└── README.markdown


/liftoff.php:
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 1 | <?PHP
 2 | /*
 3 | Plugin Name: VirtualHostX Lift Off
 4 | Plugin URI: https://github.com/tylerhall/VHX-Liftoff-Wordpress-Plugin
 5 | Description: Modifies WordPress to work with <a href="http://clickontyler.com/virtualhostx/liftoff/">VirtualHostX Liftoff</a>.
 6 | Author: Tyler Hall
 7 | Version: 1.0
 8 | Author URI: http://clickontyler.com/
 9 | */
10 | 
11 | 	if(!class_exists('VHXLiftOff'))
12 | 	{
13 | 		class VHXLiftOff
14 | 		{
15 | 			protected static $instance;
16 | 
17 | 			public function __construct()
18 | 			{
19 | 				if(isset($_COOKIE['VHXOriginalHost']))
20 | 				{
21 | 					add_filter('option_home', array(&$this, 'filterDomain'), 20);
22 | 					add_filter('option_siteurl', array(&$this, 'filterDomain'), 20);
23 | 					add_filter('theme_root_uri', array(&$this, 'filterDomain'), 20);
24 | 				}
25 | 			}
26 | 
27 | 			public function filterDomain($url)
28 | 			{
29 | 				$parts = parse_url($url);
30 | 				$user_pass = $port = $query = $fragment = null;
31 | 
32 | 				if($parts['user'])
33 | 				{
34 | 					$user_pass = $parts['user'];
35 | 					if($parts['pass'])
36 | 						$user_pass .= ':' . $parts['pass'];
37 | 
38 | 					$user_pass .= '@';
39 | 				}
40 | 
41 | 				if($parts['port'])
42 | 					$port = ':' . $parts['port'];
43 | 
44 | 				if($parts['query'])
45 | 					$query = '?' . $parts['query'];
46 | 
47 | 				if($parts['fragment'])
48 | 					$query = '#' . $parts['fragment'];
49 | 
50 | 				return sprintf('%s://%s%s%s%s%s%s', $parts['scheme'], $user_pass, $_COOKIE['VHXOriginalHost'], $port, $parts['path'], $query, $fragment);
51 | 			}
52 | 		}
53 | 	}
54 | 	
55 | 	if(class_exists('VHXLiftOff'))
56 | 	{	
57 | 		$vhxliftoff = new VHXLiftOff();
58 | 	}
59 | 


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/README.markdown:
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 1 | VHX-Liftoff-Wordpress-Plugin
 2 | =========
 3 | 
 4 | A WordPress plugin that enables your website to work with [VirtualHostX Lift Off](http://clickontyler.com/virtualhostx/liftoff/).
 5 | 
 6 | INSTALL
 7 | -------
 8 | 
 9 | The Lift Off plugin installs like any other WordPress plugin.
10 | 
11 |  * Copy `liftoff.php` into your blog's `wp-content/plugins/` directory.
12 |  * Navigate to your blog's Admin Dashboard, click on "Plugins" and activate "VirtualHostX Liftoff".
13 | 
14 | You're done!
15 | 
16 | TECHNICAL DESCRIPTION
17 | ---------------------
18 | 
19 | The Lift Off service inserts a `VHXOriginalHost` cookie into each HTTP request it proxies. This
20 | plugin looks for that cookie and, if detected, alters your blog's URL on the fly to match the
21 | original Lift Off hostname. It does this by inserting filters for
22 | 
23 |  * option_home
24 |  * option_siteurl
25 |  * theme_root_uri
26 | 
27 | An earlier version of Lift Off inserted a special HTTP header instead of relying on a cookie, but we
28 | found certain security hardened versions of PHP stripped out the header. Cookies, however, made it
29 | through.
30 | 
31 | LICENSE
32 | -------
33 | 
34 | The MIT License
35 | 
36 | Copyright (c) 2011 Tyler Hall <tylerhall AT gmail DOT com>
37 | 
38 | Permission is hereby granted, free of charge, to any person obtaining a copy
39 | of this software and associated documentation files (the "Software"), to deal
40 | in the Software without restriction, including without limitation the rights
41 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
42 | copies of the Software, and to permit persons to whom the Software is
43 | furnished to do so, subject to the following conditions:
44 | 
45 | The above copyright notice and this permission notice shall be included in
46 | all copies or substantial portions of the Software.
47 | 
48 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
49 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
50 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
51 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
52 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
53 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
54 | THE SOFTWARE.
55 | 


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