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# Step-up authentication for janitorial work. Mirrors the two-step login's
# attempt cap: verify_otp! guards replay but not rate, and an attacker with a
# stolen cookie would otherwise have unlimited tries at a six-digit code.
class ElevationsController < ApplicationController
include RoleRequired
layout 'admin'
before_action :login_required
before_action :require_admin
MAX_ATTEMPTS = 5
def new
redirect_to admin_path if elevated?
end
def create
return render(:new) unless current_user.otp_enrolled?
session[:elevation_attempts] = session[:elevation_attempts].to_i + 1
if session[:elevation_attempts] > MAX_ATTEMPTS
logout_killing_session!
flash[:error] = t("flash.otp.too_many_attempts")
return redirect_to(login_path)
end
if current_user.verify_otp!(params[:code])
session.delete(:elevation_attempts)
elevate!
redirect_to safe_return_to(session.delete(:elevation_return_to),
:default => users_path)
else
flash.now[:error] = t("flash.otp.code_mismatch")
render :new
end
end
def destroy
drop_elevation!
flash[:notice] = t("flash.elevation.dropped")
redirect_to admin_path
end
def renew
if renew_elevation!
flash[:notice] = t("flash.elevation.renewed",
:minutes => AuthenticatedSystem::ELEVATION_MAX_AGE.in_minutes.to_i,
:left => elevation_extensions_left)
else
flash[:error] = t("flash.elevation.cannot_renew")
end
redirect_back(:fallback_location => admin_path, :allow_other_host => false)
end
end
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