Radu Danciu a écrit :

Cheers guys!

During my research of the way Google does stuff with their Gdata Protocol, I've come across some decisions that have to be made (more like priorities - what should work first and what to improve later).

First off - means of authentication. In order to use gdata, you need a google account (gmail counts as one). As an alternative, you can, upon invitation, view a document without having to log in (as stated here <http://docs.google.com/support/bin/answer.py?answer=47597&topic=9378> ). That would be a good way of interaction with visitors who don't have editing permissions (as of yet I've not found a way to send invitations using the API, but there should be one... I hope). Then comes the account part:

* A wiki can request that each editor use his own account to edit. That would mean: o + being able to collaboratively edit documents (the service allows for multi-user edit) <still requires invitation> o - require a download to my account, edit, send back to wiki kind of work flow (much like download to desktop, edit, upload) !! I might be wrong on this, needs further research since there is the collaborative side of things !! o more + / - to come (if anybody can think of other things to list here, please do) * Any one wiki instance admin can create a google account and use it as a generic wiki acount. That would mean: o - not being able to edit collaboratively (might not even be able to edit different documents at the same time - not sure if Google allows multiple log-ins per account) o + edit in place o - limit of 200 spreadsheets / 5000 documents or images per account (would be ok for a small to medium sized wiki, but a larger one would seriously suffer especially when it comes to spreadsheets) o more + / - to come (again, any ideas are welcome additions to the general picture)

Another +/- is that using only one account, will limit the ability to handle security. I think one reasonable approach is to have users enter their google acount in the user page and then use this account to transfer the document to and launch invitations. This might not be easy if there are no APIs. It might be needed to reverse engineer the protocol used to send invitations. One another thing to investigae is the single sign on API available in the Google Apps version of Google docs. This might allow to more tightly integrate users.

I'd like to take this occasion to ask you, the devs (and users) of xwiki what you would like to see from Google Docs Integration (prioritize). I'd really appreciate knowing what the expectations are. Also, any upsides or downsides to the issue of authentication are welcome into discussion . For me the most important feature I'd like to get from Google Docs is:

Feature 1 - Publish from Google Docs a google docs document and publish it to XWiki easily Feature 2 - Attach a document in XWiki from Google Docs Feature 3 - Create an attachment document in XWiki, open it in Google Docs (with possible collaboration), save it back to XWiki, optional delete on Google Docs Feature 4 - Use Google docs to transform documents into HTML (with an xwiki cache) Feature 5 - Edit an XWiki document collaboratively in Google docs seemlessly (in an iframe or js embedded html) Feature 6 - Edit a wiki page using Google docs and transform it back to wiki syntax Feature 7 - Embed a spreadsheet inside a wiki document Feature 8 - Use Google docs to calculate spreadsheets and graphs from XWiki Tables

Another issue is the fact that the gdata api provided by google will have to be integrated into the xwiki trunk (I'd like to know how this should be done).

Vincent can answer that.

If possible, take some time to read the references bellow and others related, and comment upon what should be done and how.

Thank you for your time and patience, Radu Danciu

References: http://docs.google.com/support/bin/answer.py?answer=47597&topic=9378 <http://docs.google.com/support/bin/answer.py?answer=47597&topic=9378> <http://docs.google.com/support/bin/answer.py?answer=47597&topic=9378> http://docs.google.com/support/spreadsheets/bin/answer.py?answer=37603 http://docs.google.com/support/bin/answer.py?answer=37560&topic=8613 <http://docs.google.com/support/bin/answer.py?answer=37560&topic=8613>

http://code.google.com/apis/gdata/client-java.html

http://en.wikipedia.org/wiki/Google_Docs_&_Spreadsheets <http://en.wikipedia.org/wiki/Google_Docs_&_Spreadsheets>

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