Mentoring in Google Code In

I worked on sTeam under FOSSASIA for my Google Summer of Code. Now on passing successfully I will be mentoring in Google Code In and help the younger minds in getting into open source development. I have put up three tasks for GCI. The tasks are an extension on my GSoC project.

The first task involves testing and writing test cases. These are not on any normal testing framework, the framework is developed on pike and specially for the project. Student will have to test the calls to COAL functions. COAL is an in house developed protocol. The task will take around a week to complete. Writing test cases is not a big task but understanding the framework, the protocol and identifying the cases is difficult. The testing framework and test cases already written can be found here.

Second task involves improving the testing framework. The testing framework has been recently developed and still requires some polishing. This task involves identifying and fixing errors in the framework and also extending the framework to add new features. New features can include a better summary of the test cases executed and more details on the errors the occurred if any.

output of testing framework
Output of Testing Framework

Third task involves extending the group command on the steam command line interface, aka, steam-shell. The group command was recently added to the shell and provides only limited functions. Student will be required to understand the use and functionalities of groups from the web interface and code these functionalities for the command line interface. This task will not require more than five days as the interface is easy to understand.

The web interface can be found at , students will have to create an account and login to use the interface.

The code for steam-shell can be found at

Students might face troubles in installing the steam command line interface and tools, therefore we are working on solution to solve this issue. We might provide a debian package that installs the software and then the source code for the tools that need to be worked upon can be downloaded from github and executed.

GSoC 2016 Summary of work done – Improving sTeam

To understand my project you first need to understand what sTeam is. For that you can refer to the blog I wrote


I started off small by fixing already existing bugs. There were multiple bugs with the edit command in the command line interface of sTeam. I extended the edit command to allow opening of multiple files as tabs in a vim editor. To provide users with more options and to make working on sTeam client easier I added the feature to open new files in steam directly from inside vim. I wrote a vim script to do this and communicated with the sTeam server through this script. My first major task was to implement a TLS connection between the sTeam command line client and the server. For this I had to understand the COAL protocol, which is a home grown protocol for sTeam. I improved the tooling for sTeam by adding in commandso work with groups from the steam-shell and to allow re-login from debug.pike. After this I did some cleaning up work by removing repeated code. The code for login was being repeated in different tools so I made a separate file containing all the common code and imported this in all the tools. I wrote an extensive help command describing every command for steam-shell and giving their syntax. There was some conceptual error in the steam-shell. Rooms and gates are the same but gothrough command was allowing the users to enter a gate but not a room, this was changed to enter command supporting both gates and room, I also changed the output of look command to not show gates and rooms as separate entities.

The next two tasks were entirely new additions to the project. First I wrote a test suite to test the calls to COAL functions. Pike does not have any kind of testing framework so I had to design my own testing framework and write test cases to test the COAL function calls. This will help further development of sTeam as testing of new code becomes easier. The next addition was to write a linux command for sTeam. Steam tools were accessible only from the tools folder that got copied to a particular location on installation. Now on installation users can use the steam command from anywhere to access all the tools.

1. We have combined all the work into two branches.

The commits made by me in each branch can be seen here.

2. I wrote weekly blogs summarizing the work done during the week.

All the blogs can be found at

The list in reverse chronological order is as follows.

3. A list of tasks covered and all the Pull requests related to each can be seen here




Fix the edit script.



Extend edit command for multiple files. Each file opens in its own tab



Implementing TLS for COAL to make it COALS.



Add the functionality to open files from inside vim



Write a plugin to make closing of files easier by closing the logs automatically.



Add the command to create groups to steam-shell.

Issue-68 Issue-97

PR-77 PR-98

Add login command to allow relogin in debug.pike



Remove repeated code used for login



Add a detailed help command to make sTeam easier to use for new users.



Change gothrough to enter and allow them to enter rooms as well.



Change the output of look command and show rooms and gates under the same section



Make steam tools accessible from everywhere

Issue-126 Issue-128 Issue-130Issue-134

PR-127 PR-129 PR-131 PR-135

Write test cases to keep the software error free.

Issue-104 Issue-107 Issue-109Issue-110 Issue-111 Issue-113Issue-116 Issue-118 Issue-122 Issue-124

PR-105 PR-108 PR-112 PR-114 PR-115PR-117 PR-119 PR-123 PR-125




4. Scrum Reports

Daily scrum reports have been posted and discussed on #steam-devel on and a backup can be found on the mailing list

5. Further Enhancements

  • The testing framework needs to be improved
  • More test cases needs to be added


6. Conclusion

In the end I would like to thank Google and FOSSASIA for providing me this wonderful opportunity to learn and collaborate. I would like to thank my mentors Martin and Trilok for guiding me through all the difficult times and helping me solve bugs whenever I got stuck. I would continue contributing to open source and try joining more projects under FOSSASIA to improve my skill set and to get new experience. I will also be taking active part in Google Code In and will love to be a mentor.

sTeam GSoC 2016 Windup

(ˢᵒᶜⁱᵉᵗʸserver) aims to be a platform for developing collaborative applications.
sTeam server project repository: sTeam.
sTeam-REST API repository: sTeam-REST

An overview of the work done by ajinkya007 during Google Summer of code 2016 with FOSSASIA on its project sTeam.

The community bonding period saw the creation of a docker image and a debian package for the sTeam server. The integration of the sTeam shell into vi, improvements in the export and import to git scripts, user and group manipulation commands, sending mails through the commandline, viewing logs and the edit script modifications were done subsequently. The later part of GSOC saw that the sTeam-rest repository was restructured, unit and api-end point tests were performed. The new web interface developed was tested.
The code written during this period by me and siddhant was merged and the conflicts were resolved. The merged code was tested thoroughly as no automated test integration tool supports pike programming language. Documentation was generated using Doxygen and deployed in the gh-pages of the sTeam server repository.

A trello board was maintained throughout the course of GSOC 2016.

Trello Board: sTeam


Issues Reported and Resolved

A list of tasks covered and all the Pull requests related to each:

Tasks Issue PR
Make changes in the Makefile for installation of sTeam. Issue-25 Issue-27 PR-66 PR-67
Edit script modifications Issue-20 Issue-29 Issue-43 PR-44 PR-48
Indentation of output in steal-shell. Issue-24 PR-42
Integrate steam-shell into vim or emacs. Issue-37 Issue-43 Issue-49 PR-41 PR-48 PR-51
Improve the import and export from git scripts. Issue-9 Issue-14 Issue-16 Issue-18 Issue-19 Issue-46 PR-45 PR-54 PR-55 PR-76
Create, Delete and List the user through commandline Issue-58 Issue-69 Issue-72 PR-59 PR-70 PR-78
Sending Mails through commandline Issue-74 PR-85
Generate error logs and display them in CLI Issue-83 PR-86
Create a file of any mime type from command line. Issue-79 PR-82
Add more commands for group operations. Issue-80 PR-84
Add more utility to the steam-shell Issue-56 Issue-71 Issue-73 PR-57 PR-75 PR-81
Restructure the sTeam-rest repository List of Issue’s List of PR’s
Write test cases to test sTeam-rest api List of Issue’s List of PR’s
Create a debian package and a docker image for easy deployment Create docker image Docker Image
Document the work done Issue 149 sTeam Server Structure, sTeam Server Documentation
Test the web-interface

Commits Merged

During the course of GSOC 2016, work was done on the sTeam and sTeam-rest repositories.

1. The work done on the sTeam repository.

We have combined all the work into two branches for the ease of creating a debian package. The commits made by me in each branch can be seen here.

2. The work done on the sTeam-rest repository

The push request’s sent for the issue’s are yet to be merged in the main repository. The list of PR’s for the sTeam-rest repository.

sTeam-rest PR’s

The weekly blogs

The blogs summarizing the work done during the week were published on my personal website. These can be found on Weekly Blogs
All the blogs can also be found on the Fossasia blog.
The list in reverse chronological order is as follows.


Scrum reports were posted on the #steam-devel on and sTeam google group. The sTeam trello board also has everyday scrum reports.

Further Improvements

  1. sTeam command line lacks the functionality to read and set the object access permissions. sTeam function analogous to getfacl() to change the sTeam server object permisssions.
  2. sTeam debian package for easy installation of the sTeam server. The debian package is yet to be fully packaged.

Special Thanks

  • I would like to thank my mentors Mario Behling, Hong Phuc Dang, Martin Bahr, Trilok Tourani and my peers for being there to help me and guide me.
  • I would like to thank FOSSASIA, sTeam and Pike Community for giving me this opportunity and guiding me in this endeavour.
  • I would also like to thank Google Summer of Code for this experience.

Feel free to explore the repository. Suggestions for improvements are welcomed.

Checkout the FOSSASIA Idea’s page for more information on projects supported by FOSSASIA.

sTeam Docker Image

(ˢᵒᶜⁱᵉᵗʸserver) aims to be a platform for developing collaborative applications.
sTeam server project repository: sTeam.
sTeam-REST API repository: sTeam-REST


What is Docker?

Docker is open source software to pack, ship and run any application as a lightweight container. Containers are completely hardware and platform independent so you don’t have to worry about whether what you are creating will run everywhere.

In order to facilitate development in all the environments and give the user the ease from the cumbersome installation steps a docker image was made for the sTeam project.
This docker image contains all the necessary dependencies to start the sTeam server.
It also includes the sTeam UI and the Rest API along with it’s dependencies. These have already been installed and developer can start collaborating to it.


The docker image can be found at :

It has all the necessary information for it’s usage and installation.

The dockerfile for the sTeam repository:

FROM ubuntu:latest
RUN apt-get update
RUN apt-get install -y wget git firefox nodejs nodejs-legacy npm
RUN apt-get install -y build-essential mysql-server libmysqld-dev bzip2 libjpeg$
RUN apt-get install -y pike7.8 pike7.8-bzip2 pike7.8-svg
RUN apt-get install -y libxml2-dev libxslt1-dev automake flex
RUN npm install -g npm bower gulp coffee-script jasmine-node frisby
RUN cd home
RUN wget -c$
RUN git clone
RUN cd sTeam
RUN git checkout societyserver-source
RUN ./build
RUN sudo ./install
RUN cd ..
RUN git clone
RUN cd sTeam-web-interface-gsoc-2015
RUN npm install
RUN cd ..
RUN git clone
RUN cd steam-rest
RUN npm install

Feel free to explore the repository. Suggestions for improvements are welcomed.

Checkout the FOSSASIA Idea’s page for more information on projects supported by FOSSASIA.

sTeam Server Object permissions and Doxygen Documentation

(ˢᵒᶜⁱᵉᵗʸserver) aims to be a platform for developing collaborative applications.
sTeam server project repository: sTeam.
sTeam-REST API repository: sTeam-REST

sTeam Server object permissions

sTeam command line lacks the functionality to read and set the object access permissions. The permission bits are: read,write, execute, move, insert,
annotate, sanction. The permission function was designed analogous to the getfacl() command in linux. It should display permissions as: rwxmias corresponding to the  permission granted on the object.

The the key functions are get_sanction, which returns a list of objects and permissions and sanction_object, which adds a new object and its set of permissions. The permissions is stored as an integer and the function should break the individual bits like getfact().

The permission bits for the sTeam objects are declared in the

// access.h: The permission bits

#define FAIL           -1 
#define ACCESS_DENIED   0

#define SANCTION_READ          1
#define SANCTION_EXECUTE       2
#define SANCTION_MOVE          4
#define SANCTION_WRITE         8
#define SANCTION_INSERT       16
#define SANCTION_ANNOTATE     32

The get_sanction method defined in the access.pike returns a mapping which has the ACL(Access Control List) of all the objects in the sTeam server.

// Returns the sanction mapping of this object, if the caller is privileged
// the pointer will be returned, otherwise a copy.
final mapping
    if ( _SECURITY->trust(CALLER) )
	return mSanction;
    return copy_value(mSanction);

The functions gets the permission values which are set for every object in the server.

The sanction_object method defined in the object.pike sets the permissions for the new objects.

// Set new permission for an object in the acl. Old permission are overwritten.
int sanction_object(object grp, int permission)
    ASSERTINFO(_SECURITY->valid_proxy(grp), "Sanction on non-proxy!");
    if ( query_sanction(grp) == permission )
      return permission; // if permissions are already fine

    try_event(EVENT_SANCTION, CALLER, grp, permission);
    set_sanction(grp, permission);

    run_event(EVENT_SANCTION, CALLER, grp, permission);
    return permission;

This method makes use of the set_sanction which sets the permission onthe object. The task ahead is to make use of the above functions and write a sTeam-shell command which would provide the user to easily access and change the permissions for the objects.

Merging into the Source

The work done during GSOC 2016 by Siddhant and Ajinkya on the sTeam server was merged into the gsoc201-societyserver-devel and gsoc2016-source branches in the societyserver repository.
The merged code can be found at:

The merged code needs to be tested before the debian package for the sTeam server is prepared. The testing has resulted into resolving of minor bugs.

Doxygen Documentation

The documentation for the sTeam is done using doxygen. The doxygen.pike is written and used to make the documentation for the sTeam server. The Doxyfile which includes the configuration for generating the sTeam documentation is modified and input files are added. The generated documentation is deployed on the gh-pages in the societyserver/sTeam repository.
The documentation can be found at:

The header files and the constants defined are also included in the sTeam documentation.

sTeam Documentation:


sTeam defined constants:


sTeam Macro Definitions:


Feel free to explore the repository. Suggestions for improvements are welcomed.

Checkout the FOSSASIA Idea’s page for more information on projects supported by FOSSASIA.

Testing, Documentation and Merging

As the GSoC period comes to an end the pressure, excitement and anxiety rises. I am working on the finishing steps of my project. I was successfully able to implement all the task I took up. A list of all the tasks and their implementation can be found here.

At the start of this week I had about 26 Pull Requests. Each Pull Request had independent pieces of code for a new task from the list. I had to merge all the pull requests and resolve the conflicts. My earlier tasks involved working on the same code so there were a lot of conflicts. I spend hours looking through the code and resolving conflicts. I also had to test each feature after merging any two of the branches. Finally we were able to combine all our code and come up with a branch that contains all the code implemented by me and Ajinkya Wavare.

These two are the branches we combined all our code in. I finished my work on linux command for sTeam by adding support for the last two tools which are export and import from git. I worked on to include a help to get new users to understand the use of the command.

I also worked on documentation. I started with the testing suite which is implemented by me. I wrote comments to explain the work and also improved the code by removing unnecessary lines of code. After this I added the documentation for the new command in steam-shell that I had implemented. The command to work with groups from the steam-shell. One of the issue with the testing suite still stands unresolved. I have been breaking my head on it for a week now but to no results. I will attempt to solve it in the coming week.

This error occurs for various objects in the first few runs and then the test suite runs normally error free.

Writing linux commands

sTeam includes a number of tools namely steam-shell, debug, edit, import and export from git. These tools are only accessible from the tools folder in the sTeam installation. My task is to make a steam command for linux so that all these tools can be accessible from anywhere just like any other linux application.


The command structure decided is that we have a global sTeam command and sub commands for each of the tools. This structure can be though of as similar to the structure of the git command. The central git command has many sub commands like branch, checkout, reset, merge, etc. I started with making a pike executable and then changing the installation files to copy this executable to /usr/bin. Now this pike executable becomes accessible from anywhere in the system and acts like a linux command.

I wrote the main function to accept the command line arguments and passed them to a function named resolveParam. In this function I am using an if-else structure to segregate the different sub commands. For shell and debug I started a child process to execute the file for these tools present in /usr/local/lib/steam/tools. The following code snippet gives an example.

void resolveParam(int argc,array(string) argv)
array command =({"/usr/local/lib/steam/tools/steam-shell.pike"});
object shell = Process.create_process(command, (["stdin":Stdio.stdin,"stdout":Stdio.stdout,"stderr":Stdio.stderr]));

I had some problem when I had to accept more arguments than just the sub command. Foe example the edit command works as ./edit <filename1> <filename2> <filename3>… Using the global command it becomes steam edit <filename1> <filename2> <filename3>… I had to pass all the rest of the arguments to the edit scripts. I had to add them in the command array. The first solution would be to loop through the arguments array and add them all, however pike has a very easy and elegant way of doing it in one sentence.

array command = ({"/usr/local/lib/steam/tools/edit.pike"})+argv[2..];

This gets our global command up and running. Rest of the time I spend on resolving merge conflicts while merging all my previous Pull Requests.

linux command
output showing the use of steam command

sTeam Server Peer Review and Merging.

(ˢᵒᶜⁱᵉᵗʸserver) aims to be a platform for developing collaborative applications.
sTeam server project repository: sTeam.
sTeam-REST API repository: sTeam-REST

Peer Review

Peer review is done to ensure that the work performed by one’s peers meets specific criteria. Peer review is used while working in groups because of the belief that one’s peers are able to identify each others errors easily and thus speeding up the time it takes to identify the bugs and get them rectified. The goal of peer review is to ensure that the work satisfies the specifications and identify the aberrations from the standards, help in enhancing, modifying and providing suggestions for improvements. The Review process doesn’t involve management participation.

PeerReviewA lot of work was done in the sTeam server repository during the course of GSoC 2016. There is no support for continuous code integration and testing tools like Code Coverage, Travis CI, Circle CI or Landscape IO as the pike language is not supported by these tools. The project heavily relies on the peer reviews and feedbacks from the members of the community.

The work done by Siddhant on the testing framework and the steam subshell commands was reviewed and tested for bugs. The work which was tested can be found below:

sTeam Server testing framework:

sTeam Server sub shell commands:

sTeam Server structure

The steam project files are segregated into various directories depending  upon the tasks performed by them. For an individual to be productively working on the project, the understanding of the directory structure is utmost. The structure needs to be documented. The documentation for the sTeam server was done to facilitate easy understanding of the project structure.

sTeam Server Merging the PR’s

Issue’s reported were addressed in individual branches in the fork repositories of the collaborators. The changes made were sent in PR’s to the societyserver-devel and societyserver-source repo. These needed to be merged in the source repository. For resolving the conflicts during merging these, the PR’s were merged into gsoc2016 branch in the societyserver repo.

GSoC 2016 societyserver-devel

// Ajinkya

// Siddhant

GSoC 2016 societyserver-source

// Ajinkya

// Siddhant

The merge conflicts between the two PR’s must be resolved and then merged into the main societyserver branches.
Also the issue for setting the permissions for sTeam objects would be addressed in the coming days.
Feel free to explore the repository. Suggestions for improvements are welcomed.

Checkout the FOSSASIA Idea’s page for more information on projects supported by FOSSASIA.

sTeam REST API Unit Testing

(ˢᵒᶜⁱᵉᵗʸserver) aims to be a platform for developing collaborative applications.
sTeam server project repository: sTeam.
sTeam-REST API repository: sTeam-REST

Unit Testing the sTeam REST API

The unit testing of the sTeam REST API is done using the karma and the jasmine test runner. The karma and the jasmine test runner are set up in the project repository.

The karma test runner : The main goal for Karma is to bring a productive testing environment to developers. The environment being one where they don’t have to set up loads of configurations, but rather a place where developers can just write the code and get instant feedback from their tests. Because getting quick feedback is what makes you productive and creative.

The jasmine test runner: Jasmine is a behavior-driven development framework for testing JavaScript code. It does not depend on any other JavaScript frameworks. It does not require a DOM. And it has a clean, obvious syntax so that you can easily write tests.

The karma and jasmine test runner were configured for the project and basic tests were ran. The angular js and angular mocks version in the local development repository was different. This had resulted into a new error been incorporated into the project repo. The ‘angular.element.cleanData is not a function’ error is thrown in the local development repository. This error happens when the local version of the angular.js and angular-mocks.js doesn’t match. The testing framework would test you if the versions f the two libraries is not the same.

The jasmine test runner can be accessed from the browser. The karma tests can be performed from the command line.

To access the jasmine test runner from the web browser, go to the url


To run the karma test suite, run the following command

$ karma start

The unit tests of the sTeam REST service were done using jasmine. The unit tests were written in coffee script. The preprocessor to compile the files from coffee script to javascript is defined in the karma configuration file.

Jasmine Test RunnerJasmineRunner
Jasmine Test Failure


First a dummy pass case and a fail case is tested to check there are no errors in the test suite during the test execution.

The localstoragemodule.js which is used in the steam service is injected in the test module. Then the steam service version is tested.

describe 'Check version of sTeam-service', -> 
 		it 'should return current version', inject (version) -> 

steam service should be injected in a global variable as the same service functions shall be tested while performing the remaining tests.
Then the steam service is injected and checked whether it exists or not.

beforeEach inject (_steam_) -> 
 		steam= _steam_ 
 	describe 'Check sTeam service injection', ->  
 		it 'steam service should exist', -> 

The sTeam service has both private and public functions. The private functions cannot be accessed from outside. The private functions defined in the sTeam service arehandle_request and headers.

describe 'Check sTeam service functions are defined.', ->  
 		describe ' Check the sTeam REST API private functions.', -> 
 			it 'steam service handle request function should exist', -> 
 			it 'steam service headers function should exist', -> 

The public functions of the sTeam service are then tested.

describe 'Check sTeam service functions are defined.', ->  
 		describe ' Check the sTeam REST API public functions.', -> 
 			it 'steam service login function should exist', -> 
 			it 'steam service loginp function should exist', -> 
 			it 'steam service logout function should exist', -> 
 			it 'steam service user function should exist', -> 
 			it 'steam service get function should exist', -> 
 			it 'steam service put function should exist', -> 
 			it 'steam service post function should exist', -> 
 			it 'steam service delete function should exist', -> 

The test suite written by Siddhant for the sTeam server was tested. The merging of the code from different branches which includes the work done during the course of GSoC 2016 will be merged subsequently.

Karma test runner


Feel free to explore the repository. Suggestions for improvements are welcomed.

Checkout the FOSSASIA Idea’s page for more information on projects supported by FOSSASIA.


Testing Hero – II

I continued last weeks work on improving the testing framework and adding more test cases. While writing the test cases for create I had to write a separate test case for each kind of object. This caused a lot of repetition of code. Thus the first aim for the week was to design a mechanism to write generalized test cases so that we can have an array of object and loop through them and pass each object to the same test case.

Right now the structure has a central script called test.pike which imports various other scripts containing the test cases. Let us take one of these scripts, suppose move.pike. Now I wanted to write a generalized test case which performs the same action on various objects. So I created one more file containing this generalized test case and imported this into one of the testcases in move.pike. This test case in move.pike is responsible for enumerating the various kinds of objects, sending them to the generalized test case, collect the output and then send the result for the entire test to the central test.pike. Then I went ahead and implemented this model for moving various objects to non existential location and for creating various kinds of objects and the model seemed to work fairly well.

The journey was not so smooth. I had a few troubles on the way. In all the test cases I was deleting any objects that were created and used in the test. To delete any object I need to get a reference to the object. This reference keeps getting dropped for some reason and I get an error for calling the delete function on NULL as the reference no longer exists. I tried finding the cause of this and solve this bug, however I couldn’t and found a work around the errors by using if statements to check that the object references are not null before calling functions on these object references. I continued my work on generalizing the test cases and wrote the general tests for all the test cases in the move and create test suites.

In the later part of the week I started working on some merging with my team mate Ajinkya Wavare. I designed more test cases for checking the creation of groups and users. Groups could be created using the generalized test case however for users I had to add a special test case as the process of creating a user is different from creating other objects. I ended my week by writing the test case for a long standing error, i.e, call to the get_environment function.

testing hero 2
output of test