require './ldapauthenticator'
require 'sinatra'

#configuring sinatra to have sessions
enable :sessions


# helpers
#
class Object
  def nil_or_empty?
    if self.nil? or self.empty?
      return true
    end

    return false
  end
end


# Setup LDAP
ldap_connection = { :host => "alouette.com",
  :port => "3269",
  :base => "dc=alouette, dc=com"}

LDAPAuthenticator.set_base_connection ldap_connection

# define login things
helpers do
  def authorize!
    redirect to('/login') unless authorized?
  end

  def authorized?
    !session[:username].nil_or_empty?
  end
end

# Now bring me an application
get '/' do
  authorize!
  return "logged in as : #{session[:username]}"
end

get '/login' do
  erb :login
end

post '/login' do

  username = params[:username]
  password = params[:password]

  auth = false
  errors = []

  # Testing parameters
  if username.nil_or_empty?
    errors.push "No username provided"
  end
  if password.nil_or_empty?
    errors.push "No password provided"
  end

  # If parameters are ok authenticate to ldap
  if errors.length==0
    auth = LDAPAuthenticator.authenticate(username,password)
  end
  if auth
    session[:username] ="#{username}"
    session[:password]= "#{password}"
    redirect to('/')
  else
    errors.push LDAPAuthenticator.conn.get_operation_result.message
    return errors.to_s
  end
end

get '/logout' do
  session[:username] = nil
  session[:password] = nil
end