class Paasword

# File lib/paasword.rb, line 4
def initialize(app)
        @app = app
end

# File lib/paasword.rb, line 8
def call(env)
        begin
                @req = Rack::Request.new(env)

                token = env['HTTP_X_AUTH_TOKEN']
                appPrivateKey = ENV['PAASWORD_APP_PRIVATE_KEY']
                if !token
                        error("MISSING_ELEMENT", "x-auth-token")
                elsif !appPrivateKey
                        error("MISSING_ELEMENT", "PAASWORD_APP_PRIVATE_KEY")
                else 
                        user = JWT.decode token, appPrivateKey, true
                        user = user[0]

                        if user && !user['AutoLogout']['IsEnabled']
                                loginTime = user['iat'];
                                hoursSinceLogin = ((Time.now.to_i - loginTime)/3600).round;
                                limit = user['AutoLogout']['LogoutEveryXHours']
                                if hoursSinceLogin > limit
                                        error("SESSION_EXPIRED", "")
                                end
                        end

                        env['user'] = user

                        status, headers, body = @app.call(env)
                        [status, headers, body]
                end
        rescue Exception => ex
                error("INTERNAL_ERROR", ex.message)
        end
end

# File lib/paasword.rb, line 41
def error(errorType, errorMessage)
        body = { "ErrorType" => errorType, "ErrorMessage" => errorMessage }
        [401, { 'Content-Type' => 'application/json; charset=utf-8' }, [ body.to_json ]]
end