Owncloud 6 Brings Collaborative Open Document Format Editing to the Web

OwnCloud version six was released last week, and part of the release was a pretty major new feature: real-time collaborative editing of ODF documents (the format used by Libreoffice, Calligra, etc.). Although Etherpad has supported collaborating on simple text document for a while now, this is the first Free Software equivalent to Google Docs. From the article: "WebODF is a javascript library that lets you display ODF files in your browser. Think of it as PDF.js, but for ODF. You just throw a webodf.js script on your server, and do a couple of javascript calls to render an ODF file. It works completely client-side, no serverside ODF processing required. ... The collaborative server, included with OwnCloud Documents, lets users join a 'session', which is basically a document with a history of edit operations. Operations are small units of edits (think 'commits'). In a collaborative session, we use Operational Transformation techniques to make sure that operations fired by various clients will eventually result in a consistent state everywhere. When a new client joins an existing session, all earlier operations are played-back for it to reach the current state. Note that this editing is not turn-based; this is true inline collaborative editing where users can join a document and start editing straight away." As always, source is available.

Comments

Not the first:AbiCollab has been running for years

[msevior]

AbiWord and AbiCollab have been providing a free real-time document collaboration service in the cloud for 4 years.

See:

https://abicollab.net/

Re:Dropbox drop-in replacement?

[MightyMartian]

As a company that has government contracts forbidding us from storing data outside of canada, this library is very good news.

Re:Good idea. What's the server side like?

[Phil Urich]

The server-side is a fairly trivial install (especially because they provide repos for every major distro), mostly just depending on PHP. You can store data/config in MySQL, postgreSQL, or SQLite (the default, but obviously not recommended for multiple users). The files themselves have for some time been saved in per-user folders, with a separate folder for past versions of files (by default all files are versioned). For the Documents app, it seems to store a copy of each file named with a UUID/hash in the "documents" folder for each user, the filename that you see it as being merely kept in the database.