Add OMNIAUTH_ONLY environment variable to enforce externa log-in (#17288)

* Remove support for OAUTH_REDIRECT_AT_SIGN_IN

Fixes #15959

Introduced in #6540, OAUTH_REDIRECT_AT_SIGN_IN allowed skipping the log-in form
to instead redirect to the external OmniAuth login provider.

However, it did not prevent the log-in form on /about introduced by #10232 from
appearing, and completely broke with the introduction of #15228.

As I restoring that previous log-in flow without introducing a security
vulnerability may require extensive care and knowledge of how OmniAuth works,
this commit removes support for OAUTH_REDIRECT_AT_SIGN_IN instead for the time
being.

* Add OMNIAUTH_ONLY environment variable to enforce external log-in only

* Disable user registration when OMNIAUTH_ONLY is set to true

* Replace log-in links When OMNIAUTH_ONLY is set with exactly one OmniAuth provider
This commit is contained in:
Claire 2022-01-23 15:52:58 +01:00 committed by GitHub
parent cfa583fa71
commit bddd9ba36d
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9 changed files with 71 additions and 28 deletions

View file

@ -83,10 +83,14 @@ class Api::V1::AccountsController < Api::BaseController
end
def check_enabled_registrations
forbidden if single_user_mode? || !allowed_registrations?
forbidden if single_user_mode? || omniauth_only? || !allowed_registrations?
end
def allowed_registrations?
Setting.registrations_mode != 'none'
end
def omniauth_only?
ENV['OMNIAUTH_ONLY'] == 'true'
end
end

View file

@ -81,13 +81,17 @@ class Auth::RegistrationsController < Devise::RegistrationsController
end
def check_enabled_registrations
redirect_to root_path if single_user_mode? || !allowed_registrations?
redirect_to root_path if single_user_mode? || omniauth_only? || !allowed_registrations?
end
def allowed_registrations?
Setting.registrations_mode != 'none' || @invite&.valid_for_use?
end
def omniauth_only?
ENV['OMNIAUTH_ONLY'] == 'true'
end
def invite_code
if params[:user]
params[:user][:invite_code]

View file

@ -50,13 +50,37 @@ module ApplicationHelper
end
def available_sign_up_path
if closed_registrations?
if closed_registrations? || omniauth_only?
'https://joinmastodon.org/#getting-started'
else
new_user_registration_path
end
end
def omniauth_only?
ENV['OMNIAUTH_ONLY'] == 'true'
end
def link_to_login(name = nil, html_options = nil, &block)
target = new_user_session_path
if omniauth_only? && Devise.mappings[:user].omniauthable? && User.omniauth_providers.size == 1
target = omniauth_authorize_path(:user, User.omniauth_providers[0])
html_options ||= {}
html_options[:method] = :post
end
if block_given?
link_to(target, html_options, &block)
else
link_to(name, target, html_options)
end
end
def provider_sign_in_link(provider)
link_to I18n.t("auth.providers.#{provider}", default: provider.to_s.chomp('_oauth2').capitalize), omniauth_authorize_path(:user, provider), class: "button button-#{provider}", method: :post
end
def open_deletion?
Setting.open_deletion
end

View file

@ -1,3 +1,4 @@
- unless omniauth_only?
= simple_form_for(new_user, url: user_session_path, namespace: 'login') do |f|
.fields-group
- if use_seamless_external_login?
@ -11,3 +12,11 @@
= f.button :button, t('auth.login'), type: :submit, class: 'button button-primary'
%p.hint.subtle-hint= link_to t('auth.trouble_logging_in'), new_user_password_path
- if Devise.mappings[:user].omniauthable? and User.omniauth_providers.any?
.simple_form.alternative-login
%h4= omniauth_only? ? t('auth.log_in_with') : t('auth.or_log_in_with')
.actions
- User.omniauth_providers.each do |provider|
= provider_sign_in_link(provider)

View file

@ -4,6 +4,7 @@
- content_for :header_tags do
= render partial: 'shared/og'
- unless omniauth_only?
= simple_form_for(resource, as: resource_name, url: session_path(resource_name)) do |f|
.fields-group
- if use_seamless_external_login?
@ -18,10 +19,10 @@
- if devise_mapping.omniauthable? and resource_class.omniauth_providers.any?
.simple_form.alternative-login
%h4= t('auth.or_log_in_with')
%h4= omniauth_only? ? t('auth.log_in_with') : t('auth.or_log_in_with')
.actions
- resource_class.omniauth_providers.each do |provider|
= link_to t("auth.providers.#{provider}", default: provider.to_s.chomp("_oauth2").capitalize), omniauth_authorize_path(resource_name, provider), class: "button button-#{provider}", method: :post
= provider_sign_in_link(provider)
.form-footer= render 'auth/shared/links'

View file

@ -3,7 +3,7 @@
%li= link_to t('settings.account_settings'), edit_user_registration_path
- else
- if controller_name != 'sessions'
%li= link_to t('auth.login'), new_user_session_path
%li= link_to_login t('auth.login')
- if controller_name != 'registrations'
%li= link_to t('auth.register'), available_sign_up_path

View file

@ -22,7 +22,7 @@
- if user_signed_in?
= link_to t('settings.back'), root_url, class: 'nav-link nav-button webapp-btn'
- else
= link_to t('auth.login'), new_user_session_path, class: 'webapp-btn nav-link nav-button'
= link_to_login t('auth.login'), class: 'webapp-btn nav-link nav-button'
= link_to t('auth.register'), available_sign_up_path, class: 'webapp-btn nav-link nav-button'
.container= yield

View file

@ -56,6 +56,6 @@
- if include_threads && !embedded_view? && !user_signed_in?
.entry{ class: entry_classes }
= link_to new_user_session_path, class: 'load-more load-gap' do
= link_to_login class: 'load-more load-gap' do
= fa_icon 'comments'
= t('statuses.sign_in_to_participate')

View file

@ -844,6 +844,7 @@ en:
invalid_reset_password_token: Password reset token is invalid or expired. Please request a new one.
link_to_otp: Enter a two-factor code from your phone or a recovery code
link_to_webauth: Use your security key device
log_in_with: Log in with
login: Log in
logout: Logout
migrate_account: Move to a different account