nubs / bizgolf-ui

A codegolf web interface using the Bizgolf library

Bizgolf-ui

A codegolf web interface using the Bizgolf library. See that library for more about what code golf capabilities are available.

Features

This web interface currently supports PHP 5.5 submissions only for any of the holes provided by Bizgolf. User registration and login is provided for user's submitting scores.

Homepage

The homepage includes a list of all the holes included for the hosted event and an overall scoreboard for the event.

Holes

Each hole has its own page where the hole's requirements are specified, including:

• a description of what is expected from the hole,
• constraints on the hole including the name of the constant where input is optionally given and the trim that is applied to the result before validation,
• and a sample program that passes the hole's validation and could be used as a basis for a solution or for local validation.

Also on the hole details page is a scoreboard including all of the users with passing submissions ordered by score with the shortest submissions first and a list of recent submissions, both passing and failing, including the lengths of the submissions.

Users

Each user has their own page with a list of their top submissions and a total score for them across all of the holes.

Submitting Files

When logged in, there is a form for uploading submissions on each hole's page.

Submissions

When logged in, any references to the authenticated user's submissions becomes a link to view the submission details. This is particularly useful for failing submissions in order to track down what is not working.

Here is an example failure, where the submitted file used a lowercase w where it should have used an uppercase W. Included on this page is:

• the source code (including a raw form where it is NOT utf-8 encoded);
• the output of the submission, the expected output, and the difference of the two;
• the stderr output;
• the value of the constant for the submission;
• the exit status from executing the submission;
• the length of the submission in bytes.

Requirements

The web interface is written in PHP and uses some features from PHP 5.4, so older versions of PHP will not work. Dependencies are managed using Composer. The Bizgolf library is the primary dependency and it depends on Docker.

For storing configuration and user data, Mongo is used. You will need to install the mongo pecl extension and configure Bizgolf-ui to point at a mongo database as described below.

The mcrypt PHP extension is also needed for the encrypted cookies.

Installation

Using composer the project can be installed, along with its php dependencies, using the below command:

composer create-project --stability=dev nubs/bizgolf-ui

Configuration

Two environment variables need to be set to configure the application. COOKIE_SECRET_KEY needs to be set to a private and secure string that is used to encrypt the cookies used to store user authentication. MONGOHQ_URL needs to be a url pointing to a mongo database, e.g. mongodb://user:[email protected]:10000/dbname.

Hosting

For testing, php's builtin webserver can work:

COOKIE_SECRET_KEY='your secret here' MONGOHQ_URL='mongodb://localhost:27017' php --server localhost:8000 --docroot public

A better setup for production hosting would be apache or nginx. For example, here is an apache virtual host config as an example:

<VirtualHost *:80>
    ServerName bizgolf
    DocumentRoot "/srv/http/bizgolf-ui/public"
    SetEnv COOKIE_SECRET_KEY "your secret here"
    SetEnv MONGOHQ_URL "mongodb://localhost:27017"
    <Directory "/srv/http/bizgolf-ui/public">
        Order Allow,Deny
        Allow from all
        FallbackResource /index.php
    </Directory>
</VirtualHost>

Contributing

Any changes, suggestions, or bug reports are welcome to be submitted on github. Pull requests are welcome!

License

bizgolf-ui is licensed under the MIT license. See LICENSE for the full license text.