This document discusses interoperability between Drupal and Google Apps. It provides an overview of Google Apps services like Gmail, Google Docs, Google Calendar that can be programmatically accessed via Google Data APIs. It then demonstrates how to authenticate and retrieve content from these services using PHP libraries like ZendGData. The Grrupal module allows synchronizing user accounts and settings between Drupal and Google Apps. While it currently supports basic functions, more advanced integrations are in development. Contact information is provided for the company Opevel that develops tools for these integrations.

1. Interoperability
between Drupal
and Google Apps
Kayode Odeyemi
Technical Director, Opevel
DrupalCamp Lagos 2010

2. Google Apps
• Google’s Enterprise Solution
• Consists of Google Docs, Google Sites, Google
Groups, Google Calendar, Gmail and Postini.
• All services can be extended programmatically
using Google Data API

3. Extending Google Apps: Google Data APIs
• Google Data APIs is made up of Google Docs
API, Google Calendar API, Google Speadsheet
API, Google Contacts, Google YouTube, Google
Health et cetera
• Use any platform you are familiar with. i.e
Java, PHP, Python, .NET

4. How it works – using ZendGData
Using Gdata PHP Client Library
//Initialize by Form HTTP Client Authentication – Preferred for Desktop application
function getGoogleLoginHttpClient($user, $pass)
{
$service = Zend_Gdata_Docs::AUTH_SERVICE_NAME;
$client = Zend_Gdata_ClientLogin::getHttpClient($user, $pass, $service);
return $client;
… //retrieve content based on Google Services
}
//Initialize by AUTHSUB – Preferred for web applications
function getGoogleAccessByAuthSub() {
$service = Zend_Gdata_Contacts::AUTH_SERVICE_NAME;
$client = Zend_Gdata_ClientLogin::getHttpClient($user, $pass,
$service);
return $client;
… … //retrieve content based on Google Services
}

5. Grupal: Drupal Interface to Google Apps
What you can do
• Creating users in Google Apps when created in Drupal
(suspended or enabled)
• Suspending users in Google Apps when blocked in Drupal
• Synchronising passwords in Google Apps when updated in
Drupal
• Suspending or deleting users in Google Apps when deleted
in Drupal
• Integrated Single Sign On (SSO)

6. Grupal: Drupal Interface to Google Apps
What you cannot do yet
• Doesn’t support Google Sites yet
• No release version yet for Google Contacts

7. More quality integration of Drupal with Google Services
• Sheetnode – Import Google Speadsheet directly
into Drupal. Also supports ODS Standard
Document format as well as Microsoft Excel.
• Google Analytics Module – Monitor your Drupal
site traffic with Google Analytics
• GMaps – Expose your Drupal site to Google Maps

8. CONTACT OPEVEL
• For more information, please visit
– www.opevel.com
• Contact us
– info@opevel.com, support@opevel.com
• Socialize with us on Facebook and Twitter
– http://www.facebook.com/pages/Opevel/341324709251?ref=mf
– http://twitter.com/opevel