Ron Rennick

A flexible and customizable event driven cache purge plugin to work in conjuction with Nginx configured as a front end proxy to a WordPress install. For use with either single WP sites or in a WP network. If you have a single WP site without custom post types or mobile support the <a href="https://wordpress.org/extend/plugins/nginx-proxy-cache-purge/" rel="ugc">Nginx Proxy Cache Plugin</a> is simpler and will probably meet your needs.
Features
<ul>
<li>purge home, posts, blog page, feeds</li>
<li>enable comment triggered purge via a filter</li>
<li>purge taxonomy archives</li>
<li>processing specific to post type and status</li>
<li>7 filters for customizing purge behavior (see guide under Installation tab)</li>
<li>on demand purge post action link</li>
<li>mobile caching support</li>
<li>auto detects WPtouch/WPtouch Pro for mobile cache purging</li>
<li>works in both networks and single sites</li>
<li>includes <code>ranpcp_purge_urls( $array_of_urls )</code> function for custom purging by other plugins</li>
</ul>
This plugin was written by <a href="http://ronandandrea.com/" rel="nofollow ugc">Ron Rennick</a> in collaboration with the <a href="http://umw.edu/" rel="nofollow ugc">University of Mary Washington</a>.
<a href="http://wpebooks.com/free-plugins/network-nginx-proxy-cache-purge/" rel="nofollow ugc">Plugin Page</a>

Network Nginx Proxy Cache Purge

Event driven and on demand Nginx front end proxy cache purge utility.

Takayuki Miyauchi

This plugin allows you to switch theme according to the User Agent on the Nginx reverse proxy.
Nginx Mobile Theme’s requirements are as follows.
<ul>
<li>PHP 5.3 or later</li>
<li>WordPress 3.7 or later</li>
<li><a href="https://wordpress.org/plugins/nginx-champuru/" rel="ugc">Nginx Cache Controller</a> 2.0.0 or later</li>
</ul>
<h4>Some Features</h4>
<ul>
<li>You can flush mobile’s and pc’s each caches automatically via <a href="https://wordpress.org/plugins/nginx-champuru/" rel="ugc">Nginx Cache Controller</a>.</li>
<li>Allow you to switch theme according to the user-agent.</li>
<li>Allow you to customize multiple mobile device support via filter-hook.</li>
</ul>
<h4>Nginx Configuration</h4>
Add mobile device detection to the nginx.conf.
<pre><code>set $mobile '';
if ($http_user_agent ~* '(iPhone|iPod|incognito|webmate|Android|dream|CUPCAKE|froyo|BlackBerry|webOS|s8000|bada|IEMobile|Googlebot\-Mobile|AdsBot\-Google)') {
 set $mobile "@smartphone";
}
</code></pre>
Set proxy_cache_key.
<pre><code>proxy_cache_key "$mobile$scheme://$host$request_uri";
</code></pre>
Send custom request header to the backend.
<pre><code>proxy_set_header X-UA-Detect $mobile;
</code></pre>
Nginx Mobile Theme will switch theme when ‘@smartphone’ is received in the <code>$_SERVER['HTTP_X_UA_DETECT']</code>.
<h4>How to use</h4>
<ol>
<li>Please access to the theme-customizer in the WordPress admin area.</li>
<li>Please select Mobile Theme in the drop-down.</li>
<li>Click “Save & Publish” button to save.</li>
</ol>
<h4>Multiple mobile device support</h4>
<ol>
<li>Add custom mobile detection to the nginx.conf.</li>
<li>Add custom mobile detection to the WordPress via <code>nginxmobile_mobile_detects</code> filter-hook.</li>
</ol>
nginx.conf: 
 set $mobile ”; 
 if ($http_user_agent ~* ‘(iPhone|iPod)’) { 
 set $mobile “@smartphone”; 
 } 
 if ($http_user_agent ~* ‘iPad’) { 
 set $mobile “@tablet”; 
 }
In your custom plugin: 
 add_filter(‘nginxmobile_mobile_detects’, function(){ 
 return array(‘@smartphone’, ‘@tablet’); 
 });
<ul>
<li>As a result, allow you to select theme for @smartphone and @tablet individually in the theme-customizer.</li>
</ul>
<h4>Amimoto Support</h4>
The <a href="http://megumi-cloud.com/" rel="nofollow ugc">Amimoto</a> is a full-tuned WordPress AMI on the AWS EC2.
<ul>
<li>Uncomment /etc/nginx/conf.d/default.conf in line 17</li>
</ul>
before: 
 #include /etc/nginx/mobile-detect;
after: 
 include /etc/nginx/mobile-detect;
<ul>
<li>Add line to /etc/nginx/nginx.conf like following.</li>
</ul>
before: 
 proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; 
 proxy_set_header Accept-Encoding “”;
after: 
 proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; 
 proxy_set_header Accept-Encoding “”; 
 proxy_set_header X-UA-Detect $mobile; # add new line
<ul>
<li>
Define constant in the wp-config.php
define(‘IS_AMIMOTO’, true);
</li>
</ul>

Nginx Mobile Theme

This plugin allows you to switch theme according to the User Agent on the Nginx reverse proxy.

Network Nginx Proxy Cache Purge vs Nginx Mobile Theme