A challenge/exercise validator for the programming challenges in
osprogramadores.com.
Usage
This program has three main handlers:
The root handler (/), which serves a simple web page where where users can
choose the desired challenge and type their github usernames and their
program's output. On submit, the page makes an XMLHttpRequest to the
check handler to verify the validity of the user's input.
The check handler (/check) take the challenge, username and user's solution
and attempts to match the solution to the canonical solution set in the
config file. If the user's input is valid, the program generates a token
from the input data + a secret and instructs the user to add this token to a
file called .valid in their repository before submitting a pull request.
The verify token handler (/verify-token) takes the challenge, username, and a
token, and verifies the validity of this token. The program returns an HTTP
200 if the token is OK or HTTP 400 otherwise. The purpose of this handler is
to allow remote token verification.