Google Summer of Code past projects

This page tries to keep up with the current status of all past Summer of Code projects. For some quantitative analysis, see User:MaxSem/GSoC analysis.

2013

Android app for MediaWiki translation

An Android app to translate in a MediaWiki site that has the Translate extension installed, such as translatewiki.net or meta.wikimedia.org.

• Student: Or Sagi
• Mentors: Niklas Laxström and Yuvaraj Pandian
• Status: The app was successfully created, and is available in Google's Play Store, where it has gotten good reviews.

Bayesian Spam Filter Extension for MediaWiki

Create an extension to detect spam edits using Bayesian techniques.

• Student: Anubhav Agarwal
• Mentors: Platonides and Chris Steipp
• Status: The BayesianFilter extension was created, and is currently at status "beta". It is not currently used on any known wiki.

Improve support for book structures

Modify the BookManager extension to provide a user-friendly form to organize individual pages and subpages into a single book structure, for use on sites such as Wikisource and Wikibooks.

• Student: Molly White
• Mentors: Raylton P. Sousa and Mwalker
• Status: Project was mostly finished, but still has some bugs; see here.

Improvement of glossary tools

Improve the functionality of the two MediaWiki glossary extensions: Lingo and Semantic Glossary.

• Student: Yevheniy Vlasenko
• Mentors: Yury Katkov and Stephan Gambke
• Status: Various features were added to one or both extensions, including a <noglossary> tag, integration with the Approved Revs extension, and customizing the tooltip display using templates.

Incremental data dumps

Create a system for MediaWiki data dumps that only show the differences from the previous dump, enabling much faster transfer.

• Student: Petr Onderka
• Mentors: Ariel Glenn and Tyler Romeo
• Status: Code is mostly finished (though file compression was not done), but requires review and merge.

jQuery.IME extensions for Firefox and Chrome

Create Firefox and Chrome browser plugins/extensions that make use of the jQuery Input Method Editor (jQuery.IME) library for providing input methods across different languages.

• Student: Praveen Singh
• Mentors: Santhosh Thottingal and Amir E. Aharoni
• Status: The extensions were both created, and are available at the Chrome Web Store and the Mozilla Add-ons repository, respectively, both under the name "Wikimedia Input Tools". The source code for both is viewable here and here.

Language Coverage Matrix dashboard

Create an interactive tool for viewing MediaWiki's current language support.

• Student: Harsh Kothari
• Mentors: Runa Bhattacharjee and Alolita Sharma
• Status: The tool was created; the code is available here, and a demo can be seen here.

Mobilize Wikidata

Create a mobile-friendly display for the contents of Wikidata.

• Student: Pragun Bhutani
• Mentors: Katie Filbert and Jon Robson
• Status: A number of changes were made to the Wikibase extension to support this new feature, but the project is not yet complete. A demo can be seen here. See here for current status.

Moodle extension

Create an extension to display information from the learning-management system Moodle.

• Student: Rohan Verma
• Mentors: Jan Luca Naumann and Brian Wolff
• Status: The Moodle extension was created and partially completed; it is currently at "unstable" status.

Pronunciation Recording Tool

Create a user-friendly tool for uploading audio files showing the pronunciation of words, in Wiktionary.

• Student: Rahul Maliakkal
• Mentors: Michael Dale and Matt Flaschen
• Status: The PronunciationRecording extension was created, which was only partially completed and is currently at "unstable" status. A demo of the tool is viewable here.

Prototyping inline comments

Create a prototype for letting users add inline comments within wiki pages, to allow for discussions on the content, using the OKFN Annotator JavaScript library.

• Student: Richa Jain
• Mentors: Matthew Flaschen and Tyler Romeo
• Status: The Annotator extension was created, which is currently at "unstable" status.

Refactoring of ProofreadPage extension

Modify the ProofreadPage extension for general improvements, as well as to allow integration with the VisualEditor extension.

• Student: Aarti Dwivedi
• Mentors: Tpt and Zaran
• Status: Extension was successfully modified. Several bugs were later found after a deployment to WMF sites, and fixed by Tpt; a testing suite for ProofreadPage would be helpful.

Section handling in Semantic Forms

Add the ability to edit/handle page sections to both the Semantic Forms and Page Schemas extensions.

• Student: Himeshi De Silva
• Mentor: Yaron Koren
• Status: This capability was added to both extensions, and was released in version 2.6 of Semantic Forms and version 0.4 of Page Schemas.

UploadWizard: Book upload customization

Modify the Extension:UploadWizard extension to allow for uploading books, and book metadata, for use on Wikisource.

• Student: Nazmul Chowdhury
• Mentors: Mark Traceur and Micru
• Status: No code was merged to UploadWizard, due in part to unresolved questions about the use of the TemplateData extension. Status and code can be found here.

VisualEditor Mathematical Equations Plugin

Create a plugin for the VisualEditor extension to allow for viewing and editing mathematical equations.

• Student: Jiabao Wu
• Mentors: Peter Krautzberger and Roan Kattouw
• Status: Project was not completed.

VisualEditor plugin for source code editing (SyntaxHighlight GeSHi support)

Create a plugin for the VisualEditor extension to allow for editing source code, based on the formatting done by the SyntaxHighlight GeSHi extension.

• Student: Tongbo Sui
• Mentors: Trevor Parscal and James Forrester
• Status: A new "syntaxhighlight" module was successfully added to the VisualEditor extension.

VisualEditor RTL support

Improve support in the VisualEditor extension for right-to-left languages.

• Student: Moriel Schottlender
• Mentors: Amir E. Aharoni and Inez Korczynski
• Status: A large number of RTL-related bugs were fixed. A VisualEditor language selector/inspector was created. An RTL-capable TemplateData editor was created as both a gadget on the Hebrew Wikipedia and a patch to the TemplateData extension, which was merged a few months later. See here for more information.

Wikidata Entity Suggester

Allow for suggesting new properties, as well as values for properties, to editors on Wikidata.

• Student: Nilesh Chakraborty
• Mentors: Daniel Kinzler, Denny Vrandečić
• Status: The WikidataEntitySuggester extension was created; it is currently at "experimental" status.

Wikidata language fallback and conversion

Add language fallback handling (in case data isn't available in the user's own language) to the Wikibase extension, for use on Wikidata.

• Student: Liangent
• Mentors: Denny Vrandečić and Katie Filbert
• Status: A large number of changes were made to Wikibase and over 30 merged, but the overall project is not yet complete. See here for current status.

ZIM incremental updates for Kiwix

Allow for incremental updates of Wikipedia's content, in ZIM format, to enable much faster transfer to the Kiwix offline reader.

• Student: Kiran Mathew Koshy
• Mentors: Emmanuel Engelhart and Tommi Mäkitalo
• Status: Two scripts, zimdiff and zimpatch, were added to the OpenZIM code and are in use by Kiwix devs. Integration into Kiwix is not yet complete, but student is still working on it. See here for current status.

2012

We received about 41 applications that were worth considering, and accepted the following:

Convention Extension

Create an extension, ConventionExtension, to enable MediaWiki to serve as a conference management system.

• Student: Akshay Chugh
• Mentor: Jure Kajzer
• Status: ConventionExtension is currently at "beta" status.

Green SMW

Make changes to the Semantic MediaWiki extension's storage and caching system to make it more efficient, and thus more "green".

• Student: Nischay Nahata
• Mentors: Jeroen De Dauw and Markus Krötzsch
• Status: This project formed the basis of the new database structure for Semantic MediaWiki, SMWSQLStore3, which first appeared in SMW 1.8, released in December 2012. Nischay remains an active SMW contributor, and also does code review and bug fixing for the WMF.

Improvements to OpenStackManager

Upgrade the OpenStackManager extension to support the new OpenStack API.

• Student: Suhas Rao
• Mentor: Ryan Lane
• Status: Student failed and did not deliver any code.

Incubator improvements and language support

Improve the usability, performance and language coverage of the WikimediaIncubator extension, used on the site Wikimedia Incubator.

• Student: Robin Pepermans
• Mentor: Niklas Laxström
• Status: Project was partly completed at the end of the summer, but Robin plans to keep working on it (he is the author of the extension).

Integration of Flickr and Geolocation in Upload Wizard

Improve the UploadWizard extension in two ways: allow for easy transfer of images from the website Flickr, and allow users to select a coordinate location for photos using a clickable map interface.

• Student: Ankur Anand
• Mentor: Ryan Kaldari
• Status: Code was created for the two new features, and put into the two new Git branches flickr (which was merged into UploadWizard trunk and deployed), and geo (which has not been merged).

Realtime collaboration on VisualEditor

Enable the VisualEditor extension to be used for realtime collaboration, where users' edits propagate immediately to other users' screens, in the manner of Etherpad and Google Docs.

• Student: Ashish Dubey
• Mentor: Trevor Parscal
• Status: A basic version of this feature was created, that allows for a single editor to make changes, which other users can then see immediately. This functionality has not yet been integrated into VisualEditor.

TranslateSvg

Original name: "TranslateSvg: Bringing the translation revolution to Wikimedia Commons". Create the TranslateSvg extension, which will allow users to translate the text within uploaded SVG files into different languages, via the wiki.

• Student: Harry Burt
• Mentor: Max Semenik (Niklas Laxström helped out unofficially)
• Status: Extension is not yet complete.

Watchlist grouping and workflow improvements

Create a system for grouping pages, so that users can watch all the pages within a single group without having to add each one individually to their watchlist.

• Student: Aaron Pramana
• Mentor: Alex Emsenhuber
• Status: Only the back end of the system was finished. The student's development blog for the project can be found here.

Wikimedia Commons mass upload tool

Original name: "Application for mass uploading files to Wikimedia Commons on upload campaigns". A desktop application for doing mass uploads of photos.

• Student: Platonides
• Mentor: Sumana Harihareswara
• Status: Student did not have enough time, due to his other MediaWiki development-related work, and the project was not completed. However, a prototype was created, and Platonides hopes to improve it in the future.

2011

We received approximately 24 proposals worth considering, and accepted the following:

Archival for Web References/Citations

Facilitate the archival of external links used as references in the English Wikipedia, to prevent "link rot" for pages that go offline. This was implemented as the ArchiveLinks extension

• Student: Kevin Brown
• Mentor: Neil Kandalgaonkar
• Status: A working interface, and a protocol for feeding new links to partners like the Internet Archive, were created, but the extension was not completed. The ArchiveLinks extension was at "experimental" status, then abandoned. See here for more information.

Customization of Gadgets

Original name: "AMICUS: Awesome Monolithic Infrastructure for Customization of User Scripts". Allow gadgets, defined within the Gadgets extension, to be made customizable per wiki using settings variables.

• Student: Salvatore Ingala
• Mentors: Brion Vibber and Max Semenik
• Status: Code remains in a separate branch, awaiting merge into the Gadgets extension. It may be merged in as part of the creation of ResourceLoader 2. See here for more information.

Extension Release Management

Implement an extension management platform for MediaWiki, based on the first half of the 2010 GSoC project "Extension management platform", i.e. the Distribution extension.

• Student: Aigerim Karabekova
• Mentors: Sam Reed, Priyanka Dhanda, and Chad Horohoe
• Outcome: Cancelled due to student's personal problems, including health issues.

Improving Semantic MediaWiki search

Original title: “Improving Semantic Search/Semantic Query usability issues in SMW”. Project to make the "Special:Ask" page in Semantic MediaWiki more user-friendly.

• Student: Devayon Das
• Mentor: Markus Krötzsch
• Status: The code was created and added to Semantic MediaWiki as an optional feature that users can enable by a suitable configuration setting. The code runs and can be used to solve tasks. But there are remaining issues that need to be addressed to make this feature the standard implementation.

Offline article selection

Original title: "Making Offline Wikipedia Article Selection Easier with MediaWiki Extensions". Create an extension to allow export of Wikipedia articles into offline collections, meant to replace the WP 1.0 bot.

• Student: Yuvi Panda
• Mentor: Arthur Richards
• Status: Extension was temporarily named the "GPoC" extension (for "GSoC Proof of Concept"), then renamed "SelectionSifter" in December 2011. (See code here.) The project has been abandoned. However, Yuvi Panda has become a contractor for the Wikimedia Foundation, working mostly on mobile development.

Page Schemas

Original title: "Semantic Schemas extension". Project to create the Page Schemas extension, to define data structure for wiki pages, mostly meant to be used with the Semantic MediaWiki extension.

• Student: Ankit Garg
• Mentor: Yaron Koren
• Status: A preliminary version of Page Schemas was created successfully; it was later modified significantly by Yaron. The extension is currently in active use.

Signup API

Original name: "Account Creation, Login Screens and AJAX-ification of everything". Implement the Account creation proposal, which would allow for Ajax-based login. This was implemented as the SignupAPI extension.

• Student: Akshay Agarwal
• Mentor: Brandon Harris
• Status: The SignupAPI extension is currently at "experimental" status. Some of Akshay Agarwal's commits received code critique and require improvements (more information). The Editor Engagement team was at one point interested in reusing some of SignupAPI in a new project, though this has not occurred.

SocialProfile extension – UserStatus feature

Add the ability for users to set their current status, and track each others' statuses, in the SocialProfile extension.

• Student: Zhenya Vlasyenko
• Mentor: Jack Phoenix
• Outcome: Feature was added successfully. See here for more information.

2010

For the official list with links to the proposals, go here.

Extension management platform

"Creating an awesome extension management platform for MediaWiki, facilitating the installation, updating, removal and configuration of extensions."

See Deployment for overview - project resulted in two new extensions, Distribution and Deployment.

• Student: Jeroen De Dauw
• Mentor: Brion Vibber
• Outcome: Extensions took longer than expected, and remained uncompleted at the end of the term. The WMF decided not to fund additional development on these extensions, but there is still interest within the WMF to get this functionality working.

Improve metadata support

Improve metadata support for uploaded media in MediaWiki by displaying embedded IPTC and XMP metadata.

• Student: Brian Wolff
• Mentor: Chad Horohoe
• Outcome: Code was initially added to the img_metadata branch, and then merged into trunk in r86169, which became part of MediaWiki 1.18. Brian has continued to work actively on MediaWiki, on core and extensions.

Interwiki template transclusion

The aim is to allow MediaWiki users to insert (transclude) templates from one wiki to another on Wikimedia Foundation (WMF) wikis (Wikipedia, Wikimedia Commons, etc.). (See feature proposal.)

• Student: Peter Potrowl
• Mentor: Roan Kattouw
• Outcome: Code was initially added to the iwtransclusion branch, and a prototype was created. Branch was merged into trunk in r95396 and then demerged. There was a plan by Sam Reed to re-merge the code into trunk in March 2012, but this was abandoned in April 2012.

Javascript overhaul of Semantic MediaWiki

"Improve and extend the Javascript for Semantic MediaWiki and some of its spinoff extensions, most notably Semantic Forms - this would include transferring over much of the Javascript to use the jQuery library, which is now becoming a MediaWiki standard."

• Student: Sanyam Goyal
• Mentor: Yaron Koren
• Outcome: Work was completed as specified, and five extensions (Semantic MediaWiki, Semantic Forms, Semantic Forms Inputs, Semantic Drilldown, Semantic Result Formats) had their Javascript improved, and modified to use jQuery where appropriate.

RDFIO

Project to create the RDFIO extension. (Original project name: "General RDF export/import in Semantic MediaWiki").

• Student: Samuel Lampa
• Mentor: Denny Vrandečić
• Outcome: The RDFIO extension was in active use for around a year, then stopped being maintained in 2011, then became maintained again in 2012. It is currently at "beta" status.

Wikisource Legal Tool

Create a tool to format judicial decisions, legal scholarship, and statutes for Wikisource.

• Student: Stephen Laporte
• Mentor: Ariel Glenn
• Outcome: Formatted U.S. Supreme Court opinions are being imported to Wikisource by BenchBot. Stephen Laporte currently works for the Wikimedia Foundation as a lawyer.

2009

For the official list with links to the proposals, go here.

Maps and Semantic Maps

Project to create the Maps and Semantic Maps extensions (original project name: "Semantic Layers Extension").

• Student: Jeroen De Dauw
• Mentor: Yaron Koren
• Outcome: The two extensions are in use on over 100 sites each (see here and here), and are still under active development. Jeroen is still very active in the community, and has been a contractor for the Wikimedia Foundation and Wikimedia Deutschland.

MwEmbed

"Doog - The New Cortado Applet" - improvements to MwEmbed.

• Student: Gerardo Cabero
• Mentor: Michael Dale
• Outcome: Applet was not successfully implemented.

Translation

"Turning MediaWiki into an efficient localization platform" - improvements to the Translate extension.

See Nikerabbit's GSoC 2009 wrapup blog post.

• Student: Niklas Laxström (Nikerabbit)
• Mentor: Siebrand Mazeland
• Outcome: In active use on translatewiki.net and dozens other wikis. Niklas Laxström was active in the community before and after this project, and currently works for the Wikimedia Foundation.

Image rendering daemon

Was written in Python and designed to handle asynchronous image rendering requests.

"This is a proposal to fix the MediaWiki bug #4854, implementing a daemon program to render and resize images uploaded by Wikipedia users. Separating the image manipulating work from the MediaWiki application will greatly alleviate application server's load, thus improve the overall performance. The API will be designed as general as possible to accommodate the needs of other applications that also render and resize images in large quantity."

• Student: Zhe Wu
• Mentor: Aryeh Gregor (Simetrical)
• Notes: Proposal was very well written, programmer obviously knew what he was doing. Major issues:
  • Was being developed on another repository. Should have been in SVN with everything else.
  • Mentored by an accomplished developer, but someone who had little interest in the subject matter
  • While the proposal was very well written, it wasn't developed with Wikimedia operations in mind. Their wants/needs should've been solicited and probably consulted during the process as well.

• Outcome: Final status email. Since it was developed off-site, it never really received much input. It appears that none of the code was ever looked at by anyone in operations for potential deployment on WMF.

2008

WebDAV

"I am working on an extension which provides a WebDAV / DeltaV / Subversion interface to MediaWiki articles: WebDAV"

"The extension enables articles to be browsed and edited with WebDAV or Subversion clients. When complete, it will support editing articles offline, using for example the Subclipse Eclipse IDE plugin or Emacs VC mode."

• Student: Jack Bates
• Mentor: ?
• Outcome: WebDAV extension exists, but appears to be unusable.

Visual Diff

Visual Diff - A system to provide more visually intuitive diffs, rather than lines added/removed.

• Student: Guy Van den Broeck
• Mentor: Brion Vibber
• Notes: Brion was always busy, so Guy asked a lot of questions in #mediawiki.
• Outcome: Had lots of outstanding issues - i18n, style, etc. Was a part of two releases, 1.14 and 1.15, in which it was disabled by default. Removed from trunk in r58267, and was not in 1.16 or subsequent releases.

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Special mention should also be made of another MediaWiki-related project done in 2008, but by Creative Commons and not the Wikimedia Foundation: a project to add RDFa support to Semantic MediaWiki. David McCabe was the student and Nathan Kinkade was the mentor. The code created is no longer in use; there is now a separate RDFa extension being used.

2007

Audio/video file recoding

The proposal: "Audio and video can instruct and inform in ways unattainable by words and still images. Currently, audio and video have only limited support and are often cumbersome to access in MediaWiki and the various projects of the Wikimedia Foundation. This project seeks to allow Wikimedia's sites to more effectively leverage the power of audio and video resources. To achieve this, a reliable and expandable system is proposed to automatically recode contributions from numerous digital a/v formats to a single, royalty and patent free compression standard. With the ability to generate such a library, Wikimedia would be poised to easily present a vast range of audio and video to their visitors using an in-browser streaming player."

Project blog: http://mikeswikidev.wordpress.com/

• Student: Mike Baynton
• Mentor: Brion Vibber
• Outcome: Code appears to have been unused by the WMF.

2006

LiquidThreads

"Add support for structured discussion pages. Option for discussion pages to be more like message boards with threads. Current discussion format is less than ideal (can modify others' comments, cluttered editing window, etc). This could also include support for embedding polls in discussion pages, voting on proposals, etc. Basically, create a minimal message board system that is tailored for use in a wiki environment (see LiquidThreads [this is a link to the page as it existed then] for some ideas in that direction)."

• Student: David McCabe
• Mentor: Erik Möller (?)
• Notes: This project created the LiquidThreads extension, which had previously been only a proposal written by Erik Möller and others. David was later temporarily re-hired by the WMF in 2008 to maintain and improve the extension. See also David's GSoC project blog.

• Outcome: Andrew Garrett, working on contract from the Foundation, spent several months in 2010 overhauling LiquidThreads entirely; almost none of the old code was kept. A project to overhaul it again was begun in 2011. Still, this could be considered a successful project: it worked, and it developed some concrete ideas that were later expanded upon in the overhaul.

Video display

No-install, in-browser display of video (and audio?) clips for Wikimedia Commons, using reasonably common Java and/or Flash components. Needs to be able to 1) play or transparently pre-convert Ogg Theora videos, 2) avoid use of patent-encumbered formats. Consider integration of Fluendo's Cortado player applet as a starting point.

Brion's talk suggested that this project would also involve creating thumbnails for video clips.

• Student: Michael Dale
• Mentor: Brion Vibber
• Outcome: Michael Dale went on to work on other MediaWiki video efforts (metavid, which eventually turned into mwEmbed and finally into TimedMediaHandler, which is in testing and review before WMF deployment). Tim Starling did the final integration of the Cortado applet and Ogg parsing as part of the OggHandler extension, which currently supports video functionality on Wikimedia Commons. Michael Dale came back to work with the Foundation in late 2008 on a few different projects with support from Kaltura, mentored a student in 2009, and is still active in developing Wikimedia technologies.