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An open source implementation of the Google Foobar challenge
PHP HTML Shell Python ApacheConf Vue Java
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readme.md

Castle

PRs Welcome

An open source implementation of the Google Foobar challenge. The game is modelled in such a way that it is similar in almost every way to the google foobar challenge. User has to navigate using terminal commands. Solution can be submitted currently in python. The code will be executed in a docker container and will be checked against a set of test cases. Once a question is completed, the user can request for new challenge.

Uses jquery terminal for creating the terminal interface. Laravel framework is used to build the application.

Contributions are invited to support more programming languages and also documentation.

3 folders where question/answers are stored. In ./storage/app/public/

./storage/app/public/
├── answers
│   ├── question_1
│   ├── question_2
│   ├── question_3
│   .
│   . 
│   └── question_n
│
├── driver
│   ├── driver.sh
│   ├── verify.sh
│   ├── driver.py
│   .    
│   .   driver files of other languages
│   └── driver.java
│
├── levels
│   ├── question_1
│   │   └── constraints.txt
│   . 
│   .  
│   └── question_n
│       └── constraints.txt
│
└── users
    ├── 1
    │   ├── journal.txt
    │   ├── question_1
    │   │   ├── constraints.txt
    │   │   └── solution.py
    │   └── readme.txt
    ├── 2
    │   ├── journal.txt
    │   ├── question_k
    │   │   ├── constraints.txt
    │   │   └── solution.py
    │   └── readme.txt
    .
    .
    └── user_id(n)
        ├── journal.txt
        ├── question_k
        │   ├── constraints.txt
        │   └── solution.py
        └── readme.txt

To run the application

fork/clone this application

cd to the root directory of the project

You need to build the docker image so that containers can be started using this image and code can be executed safely. TO build the docker image from the root directory docker build -t cont:f .

Rename .env.sample to .env. Change the following in .env file - DB name, username, password, mail_id to use, app key etc

Now you need to create the tables using database migration. The database should be already created manually for the migration to work. In the terminal execute

php artisan migrate

A default level needs to be added in the levels table. Execute the following SQL query in phpmyadmin

INSERT into levels(name,level,sub_level,time) values ('',0,0,3600)

Now execute the following commands in the terminal

php artisan config:clear

php artisan config:cache

php artisan queue:listen &

php artisan serve

The development server will start localhost:8000 and your application will be live at that address.

Adding new languages

install the language in the docker container

In the Dockerfile add RUN apt-get install -y java for example

Rebuild the container

changes in verify.sh to recognize the new language. A language is recognized depending on the file extension of the solution.

changes in driver.sh . make changes specific to the language in the case statement for the language.

create a new driver file for the language which is invoked from driver.sh

changes in ShellController.php in request() method so that the solution file for new language is created.

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