Category Archives: Web Development

EMS Master Calendar Modification

In order to add the Mason Law logo in the master calendar of events, I had to modify the master template file (Calendar.master). Scroll down to line 105, you’ll see this:

<div id="HeaderContainer" runat="server" class="HeaderContainer show-large" >
<a href=""><img src="" alt="George Mason University School of Law" width="150" height="150" ></a>

<%--<div style="margin-bottom:20px;background-image:url(Images/ems-banner-bg.png)"><div class="centered" style="width:1423px;height:205px;"><img class="centered" src="Images/ems-banner.png"/></div>
<header:Header ID="Header" runat="server" />

This template needs to be update every time the EMS calendar is upgraded.

Simple RSS Parser With lastRSS

LastRSS makes displaying RSS feed easy. Here’s an example:

// include lastRSS
include "./lastRSS.php";

// Create lastRSS object
$rss = new lastRSS;

// Set cache dir and cache time limit (1200 seconds)
// (don't forget to chmod cahce dir to 777 to allow writing)
$rss->cache_dir = './temp';
$rss->cache_time = 1200;

// Try to load and parse RSS file
if ($rs = $rss->get('')) {
// Show website logo (if presented)
if ($rs[image_url] != '') {
echo "<a href=\"$rs[image_link]\"><img src=\"$rs[image_url]\" alt=\"$rs[image_title]\"  /></a>\n";
// Show clickable website title
echo "<h1><a href=\"$rs[link]\">$rs[title]</a></h1>\n";
// Show website description
echo "<p>$rs[description]</p>\n";
// Show last published articles (title, link, description)
echo "<ul>\n";
foreach($rs['items'] as $item) {
echo "\t<li><a href=\"$item[link]\">".$item['title']."</a>".$item['description']."</li>\n";
echo "</ul>\n";
else {
echo "Error: It's not possible to reach RSS file...\n";

Simple CAS Authentication

The following script makes a private web site accessible only to authenticated users. For example, if you have a career services web site and you only want students to access the materials using their email (university) credentials, this script would do the trick. You don’t need to create separate accounts  for the site.

1. Download phpCAS and unzip/untar it:

2. Place the entire phpCAS directory on your server.

3. Place the following codes in at the top of any .php file that you want the contents to be private. If you want to make the entire site private, just add the script to an include file in the header. The following script is based on a simple CAS client:


* Example for a simple cas 2.0 client
* PHP Version 5
* @file example_simple.php
* @category Authentication
* @package PhpCAS
* @author Joachim Fritschi <>
* @author Adam Franco <>
* @license Apache License 2.0
* @link

// Load the settings from the central config file
// require_once 'config.php'; /*commented out by Donny*/
// Load the CAS lib
require_once $phpcas_path . '/CAS.php'; /*This is the path that to the CAS directory on your server, not the URL*/

// Uncomment to enable debugging

// Initialize phpCAS
phpCAS::client(CAS_VERSION_2_0, $cas_host, $cas_port, $cas_context);
//example: phpCAS::client(CAS_VERSION_1_0, '', 443,'');

// For production use set the CA certificate that is the issuer of the cert
// on the CAS server and uncomment the line below
// phpCAS::setCasServerCACert($cas_server_ca_cert_path);

// For quick testing you can disable SSL validation of the CAS server.

// force CAS authentication

// at this step, the user has been authenticated by the CAS server
// and the user's login name can be read with phpCAS::getUser().

// logout if desired
if (isset($_REQUEST['logout'])) {

// for this test, simply print that the authentication was successfull

4. Add the following script to your HTML file to indicate if the user is logged in and also to the allow the user to sign off.

<div>Not <strong><?php echo phpCAS::getUser(); ?></strong>? <a href="?logout=">Sign out</a></div>

phpCAS and WordPress

Make sure your account is in the “Administrator” role, as you won’t be able to login as admin after switching to CAS.

1. Download phpCAS and unzip/untar it:

2. Download and unzip it in wp-content/plugins

3. edit wp-content/plugins/wpcas/wpcas.php and remove or comment out line 57:

/* $wpcas_options['server_path'] == '' || */

4. Create wp-content/plugins/wpcas/wpcas-conf.php with the following content (change “/path/to” to the path to CAS.php that you installed in step 1):


// the configuration array

$wpcas_options = array(

'cas_version' => 'S1',

'include_path' => '/path/to/CAS.php',

'server_hostname' => '',

'server_port' => '443',

'server_path' => ''


// this function gets executed

// if the CAS username doesn't match a username in WordPress

function wpcas_nowpuser( $user_name ){

die('you do not have permission here');



4. Login with an account that’s in the Administrator role.  In “Plugins”, activate the wpCAS plugin.

5. If possible, test in a separate browser.  When you click “Log in” you should be redirected to  Type in your PatriotPass NetID and password.  You should be redirected back to your WordPress site.

Speed Up Site Performance

Set HTTP Cache Headers

<VirtualHost *:80>
# Your config...
ExpiresActive On
<FilesMatch "\.(ico|gif|jpe?g|png|js|css)$">
ExpiresDefault "access plus 1 year"
Header unset ETag
FileETag None
Header unset Last-Modified

Gzip Web Server Output

<VirtualHost *:80>
# Your config...
AddOutputFilterByType DEFLATE text/html text/plain text/xml application/xml application/xhtml+xml text/javascript text/css application/x-javascript
BrowserMatch ^Mozilla/4 gzip-only-text/html
BrowserMatch ^Mozilla/4\.0[678] no-gzip
BrowserMatch \\bMSIE !no-gzip !gzip-only-text/html

Source: Faster Sites Done Faster

Further reading: Using a far future expires header

Roll Your Own Social Media Buttons

I recently tested out several WordPress’s social media share plug-ins and disappointed with unnecessary injections of JavaScripts and CSS. Some services even use their own site as a gateway to server up the social media services. I was frustrated and ended up rolling my own, thanks to this blog post. Here’s my customized codes:

<a href="<?php the_permalink();?>&t=<?php the_title(); ?>" target="_blank"><img src="facebook.png" alt="Share on Facebook"></a>

<a href=”<?php the_permalink() ?>” target=”_blank”><img src=”google-plus.png” alt=”Share on Google+”></a>

<a href=”<?php the_title(); ?> -&url=<?php the_permalink() ?>” target=”_blank”><img src=”twitter.png” alt=”Share on Twitter”></a>

<a href=”<?php the_permalink() ?>” target=”_blank”><img src=”linkedin.png” alt=”Share on LinkedIn”></a>


$ sass --watch style.scss:style.css --style compressed

// Import
@import "normalize";

// Variables
$body_font: 'Georgia', serif;

// Mixin
@mixin rounded_corners($rounding) {
-moz-border-radius: $rounding;
-o-border-radius: $rounding;
border-radius: $rounding; }

Apache Rewrites

Redirect non-www to www with .htaccess

RewriteEngine On
RewriteCond %{HTTP_HOST} !^www\.
RewriteRule ^(.*)$ http://www.%{HTTP_HOST}/$1 [R=301,L]

Example: to

Add trailing slash (/) to URL:

RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_URI} !(.*)/$
RewriteRule ^(.*)$$1/ [QSA,L,R=301]

Example: to