mastodon/spec/controllers/auth/sessions_controller_spec.rb
santiagorodriguez96 e8d41bc2fe
Add WebAuthn as an alternative 2FA method (#14466)
* feat: add possibility of adding WebAuthn security keys to use as 2FA

This adds a basic UI for enabling WebAuthn 2FA. We did a little refactor
to the Settings page for editing the 2FA methods – now it will list the
methods that are available to the user (TOTP and WebAuthn) and from
there they'll be able to add or remove any of them.
Also, it's worth mentioning that for enabling WebAuthn it's required to
have TOTP enabled, so the first time that you go to the 2FA Settings
page, you'll be asked to set it up.
This work was inspired by the one donde by Github in their platform, and
despite it could be approached in different ways, we decided to go with
this one given that we feel that this gives a great UX.

Co-authored-by: Facundo Padula <facundo.padula@cedarcode.com>

* feat: add request for WebAuthn as second factor at login if enabled

This commits adds the feature for using WebAuthn as a second factor for
login when enabled.
If users have WebAuthn enabled, now a page requesting for the use of a
WebAuthn credential for log in will appear, although a link redirecting
to the old page for logging in using a two-factor code will also be
present.

Co-authored-by: Facundo Padula <facundo.padula@cedarcode.com>

* feat: add possibility of deleting WebAuthn Credentials

Co-authored-by: Facundo Padula <facundo.padula@cedarcode.com>

* feat: disable WebAuthn when an Admin disables 2FA for a user

Co-authored-by: Facundo Padula <facundo.padula@cedarcode.com>

* feat: remove ability to disable TOTP leaving only WebAuthn as 2FA

Following examples form other platforms like Github, we decided to make
Webauthn 2FA secondary to 2FA with TOTP, so that we removed the
possibility of removing TOTP authentication only, leaving users with
just WEbAuthn as 2FA. Instead, users will have to click on 'Disable 2FA'
in order to remove second factor auth.
The reason for WebAuthn being secondary to TOPT is that in that way,
users will still be able to log in using their code from their phone's
application if they don't have their security keys with them – or maybe
even lost them.

* We had to change a little the flow for setting up TOTP, given that now
  it's possible to setting up again if you already had TOTP, in order to
  let users modify their authenticator app – given that now it's not
  possible for them to disable TOTP and set it up again with another
  authenticator app.
  So, basically, now instead of storing the new `otp_secret` in the
  user, we store it in the session until the process of set up is
  finished.
  This was because, as it was before, when users clicked on 'Edit' in
  the new two-factor methods lists page, but then went back without
  finishing the flow, their `otp_secret` had been changed therefore
  invalidating their previous authenticator app, making them unable to
  log in again using TOTP.

Co-authored-by: Facundo Padula <facundo.padula@cedarcode.com>

* refactor: fix eslint errors

The PR build was failing given that linting returning some errors.
This commit attempts to fix them.

* refactor: normalize i18n translations

The build was failing given that i18n translations files were not
normalized.
This commits fixes that.

* refactor: avoid having the webauthn gem locked to a specific version

* refactor: use symbols for routes without '/'

* refactor: avoid sending webauthn disabled email when 2FA is disabled

When an admins disable 2FA for users, we were sending two mails
to them, one notifying that 2FA was disabled and the other to notify
that WebAuthn was disabled.
As the second one is redundant since the first email includes it, we can
remove it and send just one email to users.

* refactor: avoid creating new env variable for webauthn_origin config

* refactor: improve flash error messages for webauthn pages

Co-authored-by: Facundo Padula <facundo.padula@cedarcode.com>
2020-08-24 16:46:27 +02:00

413 lines
13 KiB
Ruby

# frozen_string_literal: true
require 'rails_helper'
require 'webauthn/fake_client'
RSpec.describe Auth::SessionsController, type: :controller do
render_views
before do
request.env['devise.mapping'] = Devise.mappings[:user]
end
describe 'GET #new' do
it 'returns http success' do
get :new
expect(response).to have_http_status(200)
end
end
describe 'DELETE #destroy' do
let(:user) { Fabricate(:user) }
context 'with a regular user' do
it 'redirects to home after sign out' do
sign_in(user, scope: :user)
delete :destroy
expect(response).to redirect_to(new_user_session_path)
end
it 'does not delete redirect location with continue=true' do
sign_in(user, scope: :user)
controller.store_location_for(:user, '/authorize')
delete :destroy, params: { continue: 'true' }
expect(controller.stored_location_for(:user)).to eq '/authorize'
end
end
context 'with a suspended user' do
it 'redirects to home after sign out' do
Fabricate(:account, user: user, suspended: true)
sign_in(user, scope: :user)
delete :destroy
expect(response).to redirect_to(new_user_session_path)
end
end
end
describe 'POST #create' do
context 'using PAM authentication', if: ENV['PAM_ENABLED'] == 'true' do
context 'using a valid password' do
before do
post :create, params: { user: { email: "pam_user1", password: '123456' } }
end
it 'redirects to home' do
expect(response).to redirect_to(root_path)
end
it 'logs the user in' do
expect(controller.current_user).to be_instance_of(User)
end
end
context 'using an invalid password' do
before do
post :create, params: { user: { email: "pam_user1", password: 'WRONGPW' } }
end
it 'shows a login error' do
expect(flash[:alert]).to match I18n.t('devise.failure.invalid', authentication_keys: 'Email')
end
it "doesn't log the user in" do
expect(controller.current_user).to be_nil
end
end
context 'using a valid email and existing user' do
let(:user) do
account = Fabricate.build(:account, username: 'pam_user1')
account.save!(validate: false)
user = Fabricate(:user, email: 'pam@example.com', password: nil, account: account, external: true)
user
end
before do
post :create, params: { user: { email: user.email, password: '123456' } }
end
it 'redirects to home' do
expect(response).to redirect_to(root_path)
end
it 'logs the user in' do
expect(controller.current_user).to eq user
end
end
end
context 'using password authentication' do
let(:user) { Fabricate(:user, email: 'foo@bar.com', password: 'abcdefgh') }
context 'using a valid password' do
before do
post :create, params: { user: { email: user.email, password: user.password } }
end
it 'redirects to home' do
expect(response).to redirect_to(root_path)
end
it 'logs the user in' do
expect(controller.current_user).to eq user
end
end
context 'using email with uppercase letters' do
before do
post :create, params: { user: { email: user.email.upcase, password: user.password } }
end
it 'redirects to home' do
expect(response).to redirect_to(root_path)
end
it 'logs the user in' do
expect(controller.current_user).to eq user
end
end
context 'using an invalid password' do
before do
post :create, params: { user: { email: user.email, password: 'wrongpw' } }
end
it 'shows a login error' do
expect(flash[:alert]).to match I18n.t('devise.failure.invalid', authentication_keys: 'Email')
end
it "doesn't log the user in" do
expect(controller.current_user).to be_nil
end
end
context 'using an unconfirmed password' do
before do
request.headers['Accept-Language'] = accept_language
post :create, params: { user: { email: unconfirmed_user.email, password: unconfirmed_user.password } }
end
let(:unconfirmed_user) { user.tap { |u| u.update!(confirmed_at: nil) } }
let(:accept_language) { 'fr' }
it 'redirects to home' do
expect(response).to redirect_to(root_path)
end
end
context "logging in from the user's page" do
before do
allow(controller).to receive(:single_user_mode?).and_return(single_user_mode)
allow(controller).to receive(:stored_location_for).with(:user).and_return("/@#{user.account.username}")
post :create, params: { user: { email: user.email, password: user.password } }
end
context "in single user mode" do
let(:single_user_mode) { true }
it 'redirects to home' do
expect(response).to redirect_to(root_path)
end
end
context "in non-single user mode" do
let(:single_user_mode) { false }
it "redirects back to the user's page" do
expect(response).to redirect_to(short_account_path(username: user.account))
end
end
end
end
context 'using two-factor authentication' do
context 'with OTP enabled as second factor' do
let!(:user) do
Fabricate(:user, email: 'x@y.com', password: 'abcdefgh', otp_required_for_login: true, otp_secret: User.generate_otp_secret(32))
end
let!(:recovery_codes) do
codes = user.generate_otp_backup_codes!
user.save
return codes
end
context 'using email and password' do
before do
post :create, params: { user: { email: user.email, password: user.password } }
end
it 'renders two factor authentication page' do
expect(controller).to render_template("two_factor")
expect(controller).to render_template(partial: "_otp_authentication_form")
end
end
context 'using upcase email and password' do
before do
post :create, params: { user: { email: user.email.upcase, password: user.password } }
end
it 'renders two factor authentication page' do
expect(controller).to render_template("two_factor")
expect(controller).to render_template(partial: "_otp_authentication_form")
end
end
context 'using a valid OTP' do
before do
post :create, params: { user: { otp_attempt: user.current_otp } }, session: { attempt_user_id: user.id }
end
it 'redirects to home' do
expect(response).to redirect_to(root_path)
end
it 'logs the user in' do
expect(controller.current_user).to eq user
end
end
context 'when the server has an decryption error' do
before do
allow_any_instance_of(User).to receive(:validate_and_consume_otp!).and_raise(OpenSSL::Cipher::CipherError)
post :create, params: { user: { otp_attempt: user.current_otp } }, session: { attempt_user_id: user.id }
end
it 'shows a login error' do
expect(flash[:alert]).to match I18n.t('users.invalid_otp_token')
end
it "doesn't log the user in" do
expect(controller.current_user).to be_nil
end
end
context 'using a valid recovery code' do
before do
post :create, params: { user: { otp_attempt: recovery_codes.first } }, session: { attempt_user_id: user.id }
end
it 'redirects to home' do
expect(response).to redirect_to(root_path)
end
it 'logs the user in' do
expect(controller.current_user).to eq user
end
end
context 'using an invalid OTP' do
before do
post :create, params: { user: { otp_attempt: 'wrongotp' } }, session: { attempt_user_id: user.id }
end
it 'shows a login error' do
expect(flash[:alert]).to match I18n.t('users.invalid_otp_token')
end
it "doesn't log the user in" do
expect(controller.current_user).to be_nil
end
end
end
context 'with WebAuthn and OTP enabled as second factor' do
let!(:user) do
Fabricate(:user, email: 'x@y.com', password: 'abcdefgh', otp_required_for_login: true, otp_secret: User.generate_otp_secret(32))
end
let!(:recovery_codes) do
codes = user.generate_otp_backup_codes!
user.save
return codes
end
let!(:webauthn_credential) do
user.update(webauthn_id: WebAuthn.generate_user_id)
public_key_credential = WebAuthn::Credential.from_create(fake_client.create)
user.webauthn_credentials.create(
nickname: 'SecurityKeyNickname',
external_id: public_key_credential.id,
public_key: public_key_credential.public_key,
sign_count: '1000'
)
user.webauthn_credentials.take
end
let(:domain) { "#{Rails.configuration.x.use_https ? 'https' : 'http' }://#{Rails.configuration.x.web_domain}" }
let(:fake_client) { WebAuthn::FakeClient.new(domain) }
let(:challenge) { WebAuthn::Credential.options_for_get.challenge }
let(:sign_count) { 1234 }
let(:fake_credential) { fake_client.get(challenge: challenge, sign_count: sign_count) }
context 'using email and password' do
before do
post :create, params: { user: { email: user.email, password: user.password } }
end
it 'renders webauthn authentication page' do
expect(controller).to render_template("two_factor")
expect(controller).to render_template(partial: "_webauthn_form")
end
end
context 'using upcase email and password' do
before do
post :create, params: { user: { email: user.email.upcase, password: user.password } }
end
it 'renders webauthn authentication page' do
expect(controller).to render_template("two_factor")
expect(controller).to render_template(partial: "_webauthn_form")
end
end
context 'using a valid webauthn credential' do
before do
@controller.session[:webauthn_challenge] = challenge
post :create, params: { user: { credential: fake_credential } }, session: { attempt_user_id: user.id }
end
it 'instructs the browser to redirect to home' do
expect(body_as_json[:redirect_path]).to eq(root_path)
end
it 'logs the user in' do
expect(controller.current_user).to eq user
end
it 'updates the sign count' do
expect(webauthn_credential.reload.sign_count).to eq(sign_count)
end
end
end
end
context 'when 2FA is disabled and IP is unfamiliar' do
let!(:user) { Fabricate(:user, email: 'x@y.com', password: 'abcdefgh', current_sign_in_at: 3.weeks.ago, current_sign_in_ip: '0.0.0.0') }
before do
request.remote_ip = '10.10.10.10'
request.user_agent = 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0'
allow(UserMailer).to receive(:sign_in_token).and_return(double('email', deliver_later!: nil))
end
context 'using email and password' do
before do
post :create, params: { user: { email: user.email, password: user.password } }
end
it 'renders sign in token authentication page' do
expect(controller).to render_template("sign_in_token")
end
it 'generates sign in token' do
expect(user.reload.sign_in_token).to_not be_nil
end
it 'sends sign in token e-mail' do
expect(UserMailer).to have_received(:sign_in_token)
end
end
context 'using a valid sign in token' do
before do
user.generate_sign_in_token && user.save
post :create, params: { user: { sign_in_token_attempt: user.sign_in_token } }, session: { attempt_user_id: user.id }
end
it 'redirects to home' do
expect(response).to redirect_to(root_path)
end
it 'logs the user in' do
expect(controller.current_user).to eq user
end
end
context 'using an invalid sign in token' do
before do
post :create, params: { user: { sign_in_token_attempt: 'wrongotp' } }, session: { attempt_user_id: user.id }
end
it 'shows a login error' do
expect(flash[:alert]).to match I18n.t('users.invalid_sign_in_token')
end
it "doesn't log the user in" do
expect(controller.current_user).to be_nil
end
end
end
end
end