integrating google tools with sakai duffy gillman sr. software engineer the rsmart group david...
TRANSCRIPT
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Integrating Google Tools with Sakai
Duffy Gillman <[email protected]>Sr. Software EngineerThe rSmart Group
David Haines <[email protected]>CTools DeveloperDigital Media CommonsUniversity of Michigan
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212th Sakai Conference – Los Angeles, California – June 14-16
CONTEXTAnd Now Here’s Some...
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Google Offerings...
are Vast... ...we are covering a small patch of ground today.
CLE Integration - OAE had its own efforts
Augmentation of - One could build a Google LMS CLE interesting... but not our focus
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Why Are We Thinking About This?
• Infrastructure - Google is likely to be a university email and calendar provider.
• Extension - Google provides tools we can’t afford to make.
• Innovation - Google allows simple creation of web tools through App Engine.
• Compatibility - Lots of work is done in Google by faculty and students. How can those artifacts be available in Sakai?
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What Does Google Have to Offer?
?
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What Does Google Have to Offer?
?search
documentediting
storage
video
socialnetworking
blogging
chat
forums
site hosting/editing
...to name a few things
SSO
groupingfederation
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Why Might We Want These Functions From Google?
• Offloading Maintenance/Support
• Cloud/Scalability
• Well-developed UI (mostly)
• Google Market Share/Cachet
• Student/Faculty Use
• Growth of Apps for Education
• “Bang for the Buck”
• Common integration across tools (?)
• Collaboration outside of institution
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812th Sakai Conference – Los Angeles, California – June 14-16
HISTORYAnd Now Here’s Some...
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2008 Call to Community
https://confluence.sakaiproject.org/display/SAKDEV/Google+Integration
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Community Interest
Responses from 18 individuals (17 institutions)
Non-scientifically produced summary of interest:
• Link to Google Doc• Edit Google Doc• Embed Google Gadget• Integrate gTalk• Replace Calendar• Integrate Calendar feed
• YouTube Lecture Videos• Offline Sakai• Sakai Sites -> Google Groups• Sakai within Google Sites• Single Sign-On (SSO)
Source: https://confluence.sakaiproject.org/display/SAKDEV/Google+Integration
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What Has Sakai Community Done?
Sakai Maps (Edia)
Google Docs (rSmart)
reCAPTCHA (?)
Gradebook2 (GWT)
BLTI for Google App Engine (Dr. Chuck)
iGoogle Widget for CamTools (Cambridge)
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THOUGHTS ON INTEGRATION
And Now for Some...
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Why Does Google Matter (here)?
Offers free / cheap useful tools - Search, Email, Calendar, Docs, Chat
Offers new tools - spreadsheet, maps, video
Offers infrastructure - Domain customized Google Apps
Offers innovation - App Engine for your tools, new tools from Google
Already in use by students and faculty
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Different Reasons for Integration
• Replacement - Use Google calendar and email• Supplement - Make Google tools seem like Sakai tools
(spread sheet, maps....) Make Google documents appear to be Sakai documents
• Extension - Make it easy to write Google apps that appear to be Sakai tools.
• Expose - Sakai widgets in iGoogle
These are complementary.
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“Easy” Integration Targets
Publish Google document in Sakai (rSmart - demo later)
Import Google calendar feed
BLTI loose integration with Google App engine apps
Cambridge iGoogle gadgets
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“Plausible” Integration Targets
Based on rSmart approach should be able to make Google artifacts visible as if they were Sakai artifacts with Sakai viewing permissions.
E.g. spreadsheets, maps, youtube video
Limitations: - Integrating presentation not creation. Creation and editing permissions are all Google.- Versioning: How assure that document doesn't change before grading?
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“Uncertain” Integration Targets
Calendar, email archive, resources, chat
Replacing infrastructure brings up thorny issues:
Permission model -> Google != SakaiGroups -> Google != Sakai
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Considerations and Tradeoffs
Authz Issues - mapping Sakai / Google concepts and keeping information in synch
SSO - Coordinate local and Google login
Grading - control of Google artifacts
Control / Legal - Enforcement of Institutional policies
Flexibility - Dependent on Google implementation and policies
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DISCUSSION of the FUtureAnd Now Here’s A...
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What to Expect from Google
• Appears to be "concrete interest" but we can not (at this point) rely on Google to solve any of these issues
• Google Docs API 3• Revision History potential
requirement for gradable submissions
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Potential Projects (a few...)
Publish document artifacts for grading
Smooth offloading of creation / editing to Google tools
OAuth / OpenID compatibility (not just for Google)
Calendar integration / replacement
Email archive replacement
Chat replacement
Task list as Sakai tool (as an experiment)
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INTERMISSIONAnd Now for An...
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Google Documents Integration
And now here’s a…
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What Should it Do?
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“Low Hanging Fruit”
Provide Access to Google Documentsin Resources Tool
Not EVERYTHING... but a good start
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Benefits
Lets Google do its thingCrazy,
Wacky,
Web 2.0
^
Just share the documents
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Why not Google in an iframe?
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Problem: Wrapping Sakai
Navigation...
(kind of minor)
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Problem: Wrapping Google
Does Google Know Your Users?
In Sakai I may be:
Do I even exist in Google?
Who Am I There?
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Problem: Wrapping Google
If Google appears in a Sakai iframe,you still need to log in... (somehow)
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Problem: Wrapping Google
Solution is probably Google Apps for Education, and fancy synchronization work
I’ll get to that later...
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Without Further Ado...
What does it do?
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Functions
• Author Browses Google Docs Assets• Document Selected for Link
• Format Chosen• Metadata Set
• Users in Site May Download via Link• Author may Delete• Clicking Edit Forwards to Google
(where one must log in)
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WHAT’S IT MADE OFAnd Now..
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Google Docs Integration Code
• Contributed:https://source.sakaiproject.org/contrib/rsmart/google-content
•Components:• Google Doc ContentResource Entity
• GoogleDocsService• OAuthService• Google Docs Link Helper
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Dependencies
rsmart-common-tool-lib(utilities for UI)
oauth(tool for managing oauth providers and tokens)
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Google Java Client APIs
• Java library encapsulating calls to Google Web Services
• Provide API Calls for Numerous Google Tools
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Google Java Client APIs
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CONTEMPLATIONAnd Now A Bit Of...
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“But I Still Want Google in an Iframe!”
• Big issue: synchronizing access control
• Seems to place requirements on the institution - Google Apps for Education, at the very least
• Probably also requires Single Sign On (SSO) w/ Google
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Google Apps for Education
• Establishes a Google domain matching your institution’s domain name
• Provides Google accounts to all your users
Red Flag: What about guest accounts? Federated access?
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Single Sign-On
• May not be possible for institution (eg. LDAP authentication) - access rights shared, but multiple login
• Two methods:• Adopt Google as institutional SSO provider
• Deploy a SAML-based authentication mechanism (both Shibboleth and CAS apply)
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Synchronization
• To be researched; especially performance
• Sakai would probably push access rules
• Potentially a Security Advisor in Sakai could reference Google’s access rules
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What’s Next?And Now?
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Battle Testing
QA for Google Docs has Focused on Bug Elimination...
...What about Usability?
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That OAuth Thing May Be Useful
Potential to build out a general-purpose OAuth Token Manager
Movement of Management Tool Into Profile2 (?)
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Use Cases
Institutions with Google Apps for Education who Want Tighter Integration
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YOUR QUESTIONSAnd FINALLY, How About...