TSN2201 Question 3 Solution

chanwaikok.rb

require 'sinatra'
require 'sinatra/reloader' if development?

helpers do
  def protected!
    return if authorized?
    headers['WWW-Authenticate'] = 'Basic realm="Restricted Area"'
    halt 401, "Not authorized\n"
  end

  def authorized?
    @auth ||=  Rack::Auth::Basic::Request.new(request.env)
    @auth.provided? and @auth.basic? and @auth.credentials and @auth.credentials == ['admin', 'admin']
  end
end

get '/' do
  "<h1>Hello World</h1>"
end

get '/301' do
  redirect to("http://www.example.org"), 301
end

get '/302' do
  redirect to("http://www.example.org"), 302
end

get '/401' do
  protected!
  "<h1>Authenticated</h1>"
end

get '/forbidden' do
  status 403
  "<h1>Forbidden</h1>"
end

get '/server-error' do
  5 / 0 # This will cause server error
end