CAS + SAML authentication feature (#6425)

* Cas authentication feature

* Config

* Remove class_eval + Omniauth initializer

* Codeclimate review

* Codeclimate review 2

* Codeclimate review 3

* Remove uid/email reconciliation

* SAML authentication

* Clean up code

* Improve login form

* Fix code style issues

* Add locales
This commit is contained in:
Eugen Rochko 2018-02-04 05:42:13 +01:00 committed by GitHub
parent 9da81a1639
commit 26f21fd5a0
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20 changed files with 365 additions and 3 deletions

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@ -13,7 +13,7 @@ DB_PORT=5432
# Federation
# Note: Changing LOCAL_DOMAIN at a later time will cause unwanted side effects, including breaking all existing federation.
# LOCAL_DOMAIN should *NOT* contain the protocol part of the domain e.g https://example.com.
LOCAL_DOMAIN=example.com
LOCAL_DOMAIN=example.com
# Changing LOCAL_HTTPS in production is no longer supported. (Mastodon will always serve https:// links)
@ -58,7 +58,7 @@ VAPID_PUBLIC_KEY=
# E-mail configuration
# Note: Mailgun and SparkPost (https://sparkpo.st/smtp) each have good free tiers
# If you want to use an SMTP server without authentication (e.g local Postfix relay)
# then set SMTP_AUTH_METHOD and SMTP_OPENSSL_VERIFY_MODE to 'none' and
# then set SMTP_AUTH_METHOD and SMTP_OPENSSL_VERIFY_MODE to 'none' and
# *comment* SMTP_LOGIN and SMTP_PASSWORD (leaving them blank is not enough).
SMTP_SERVER=smtp.mailgun.org
SMTP_PORT=587
@ -135,3 +135,43 @@ STREAMING_CLUSTER_NUM=1
# If you use Docker, you may want to assign UID/GID manually.
# UID=1000
# GID=1000
# Optional CAS authentication (cf. omniauth-cas) :
# CAS_ENABLED=true
# CAS_URL=https://sso.myserver.com/
# CAS_HOST=sso.myserver.com/
# CAS_PORT=443
# CAS_SSL=true
# CAS_VALIDATE_URL=
# CAS_CALLBACK_URL=
# CAS_LOGOUT_URL=
# CAS_LOGIN_URL=
# CAS_UID_FIELD='user'
# CAS_CA_PATH=
# CAS_DISABLE_SSL_VERIFICATION=false
# CAS_UID_KEY='user'
# CAS_NAME_KEY='name'
# CAS_EMAIL_KEY='email'
# CAS_NICKNAME_KEY='nickname'
# CAS_FIRST_NAME_KEY='firstname'
# CAS_LAST_NAME_KEY='lastname'
# CAS_LOCATION_KEY='location'
# CAS_IMAGE_KEY='image'
# CAS_PHONE_KEY='phone'
# Optional SAML authentication (cf. omniauth-saml)
# SAML_ENABLED=true
# SAML_ACS_URL=
# SAML_ISSUER=http://localhost:3000/auth/auth/saml/metadata
# SAML_IDP_SSO_TARGET_URL=https://idp.testshib.org/idp/profile/SAML2/Redirect/SSO
# SAML_IDP_CERT=
# SAML_IDP_CERT_FINGERPRINT=
# SAML_NAME_IDENTIFIER_FORMAT=
# SAML_CERT=
# SAML_PRIVATE_KEY=
# SAML_SECURITY_WANT_ASSERTION_SIGNED=true
# SAML_SECURITY_WANT_ASSERTION_ENCRYPTED=true
# SAML_ATTRIBUTES_STATEMENTS_UID="urn:oid:0.9.2342.19200300.100.1.1"
# SAML_ATTRIBUTES_STATEMENTS_EMAIL="urn:oid:1.3.6.1.4.1.5923.1.1.1.6"
# SAML_ATTRIBUTES_STATEMENTS_FULL_NAME="urn:oid:2.5.4.42"
# SAML_UID_ATTRIBUTE="urn:oid:0.9.2342.19200300.100.1.1"

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@ -32,6 +32,9 @@ gem 'devise', '~> 4.4'
gem 'devise-two-factor', '~> 3.0'
gem 'devise_pam_authenticatable2', '~> 8.0'
gem 'omniauth-cas', '~> 1.1', install_if: -> { ENV['CAS_ENABLED'] == 'true' }
gem 'omniauth-saml', '~> 1.8', install_if: -> { ENV['SAML_ENABLED'] == 'true' }
gem 'omniauth', '~> 1.2'
gem 'doorkeeper', '~> 4.2'
gem 'fast_blank', '~> 1.0'

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@ -201,6 +201,7 @@ GEM
hamster (3.0.0)
concurrent-ruby (~> 1.0)
hashdiff (0.3.7)
hashie (3.5.7)
highline (1.7.10)
hiredis (0.6.1)
hkdf (0.3.0)
@ -304,6 +305,16 @@ GEM
sidekiq (>= 3.5.0)
statsd-ruby (~> 1.2.0)
oj (3.3.10)
omniauth (1.8.1)
hashie (>= 3.4.6, < 3.6.0)
rack (>= 1.6.2, < 3)
omniauth-cas (1.1.1)
addressable (~> 2.3)
nokogiri (~> 1.5)
omniauth (~> 1.2)
omniauth-saml (1.9.0)
omniauth (~> 1.3, >= 1.3.2)
ruby-saml (~> 1.4, >= 1.4.3)
orm_adapter (0.5.0)
ostatus2 (2.0.3)
addressable (~> 2.5)
@ -455,6 +466,8 @@ GEM
unicode-display_width (~> 1.0, >= 1.0.1)
ruby-oembed (0.12.0)
ruby-progressbar (1.9.0)
ruby-saml (1.6.1)
nokogiri (>= 1.5.10)
rufus-scheduler (3.4.2)
et-orbi (~> 1.0)
safe_yaml (1.0.4)
@ -606,6 +619,9 @@ DEPENDENCIES
nokogiri (~> 1.8)
nsa (~> 0.2)
oj (~> 3.3)
omniauth (~> 1.2)
omniauth-cas (~> 1.1)
omniauth-saml (~> 1.8)
ostatus2 (~> 2.0)
ox (~> 2.8)
paperclip (~> 5.1)

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@ -2,4 +2,28 @@
class Auth::ConfirmationsController < Devise::ConfirmationsController
layout 'auth'
before_action :set_user, only: [:finish_signup]
# GET/PATCH /users/:id/finish_signup
def finish_signup
return unless request.patch? && params[:user]
if @user.update(user_params)
@user.skip_reconfirmation!
sign_in(@user, bypass: true)
redirect_to root_path, notice: I18n.t('devise.confirmations.send_instructions')
else
@show_errors = true
end
end
private
def set_user
@user = current_user
end
def user_params
params.require(:user).permit(:email)
end
end

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@ -0,0 +1,33 @@
# frozen_string_literal: true
class Auth::OmniauthCallbacksController < Devise::OmniauthCallbacksController
skip_before_action :verify_authenticity_token
def self.provides_callback_for(provider)
provider_id = provider.to_s.chomp '_oauth2'
define_method provider do
@user = User.find_for_oauth(request.env['omniauth.auth'], current_user)
if @user.persisted?
sign_in_and_redirect @user, event: :authentication
set_flash_message(:notice, :success, kind: provider_id.capitalize) if is_navigational_format?
else
session["devise.#{provider}_data"] = request.env['omniauth.auth']
redirect_to new_user_registration_url
end
end
end
Devise.omniauth_configs.each_key do |provider|
provides_callback_for provider
end
def after_sign_in_path_for(resource)
if resource.email_verified?
root_path
else
finish_signup_path
end
end
end

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@ -568,3 +568,21 @@ code {
margin-bottom: 4px;
}
}
.alternative-login {
margin-top: 20px;
margin-bottom: 20px;
h4 {
font-size: 16px;
color: $ui-base-lighter-color;
text-align: center;
margin-bottom: 20px;
border: 0;
padding: 0;
}
.button {
display: block;
}
}

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@ -0,0 +1,81 @@
# frozen_string_literal: true
module Omniauthable
extend ActiveSupport::Concern
TEMP_EMAIL_PREFIX = 'change@me'
TEMP_EMAIL_REGEX = /\Achange@me/
included do
def omniauth_providers
Devise.omniauth_configs.keys
end
def email_verified?
email && email !~ TEMP_EMAIL_REGEX
end
end
class_methods do
def find_for_oauth(auth, signed_in_resource = nil)
# EOLE-SSO Patch
auth.uid = (auth.uid[0][:uid] || auth.uid[0][:user]) if auth.uid.is_a? Hashie::Array
identity = Identity.find_for_oauth(auth)
# If a signed_in_resource is provided it always overrides the existing user
# to prevent the identity being locked with accidentally created accounts.
# Note that this may leave zombie accounts (with no associated identity) which
# can be cleaned up at a later date.
user = signed_in_resource ? signed_in_resource : identity.user
user = create_for_oauth(auth) if user.nil?
if identity.user.nil?
identity.user = user
identity.save!
end
user
end
def create_for_oauth(auth)
# Check if the user exists with provided email if the provider gives us a
# verified email. If no verified email was provided or the user already
# exists, we assign a temporary email and ask the user to verify it on
# the next step via Auth::ConfirmationsController.finish_signup
user = User.new(user_params_from_auth(auth))
user.account.avatar_remote_url = auth.info.image if auth.info.image =~ /\A#{URI.regexp(%w(http https))}\z/
user.skip_confirmation!
user.save!
user
end
private
def user_params_from_auth(auth)
email_is_verified = auth.info.email && (auth.info.verified || auth.info.verified_email)
email = auth.info.email if email_is_verified && !User.exists?(email: auth.info.email)
{
email: email ? email : "#{TEMP_EMAIL_PREFIX}-#{auth.uid}-#{auth.provider}.com",
password: Devise.friendly_token[0, 20],
account_attributes: {
username: ensure_unique_username(auth.uid),
display_name: [auth.info.first_name, auth.info.last_name].join(' '),
},
}
end
def ensure_unique_username(starting_username)
username = starting_username
i = 0
while Account.exists?(username: username)
i += 1
username = "#{starting_username}_#{i}"
end
username
end
end
end

22
app/models/identity.rb Normal file
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@ -0,0 +1,22 @@
# frozen_string_literal: true
# == Schema Information
#
# Table name: identities
#
# id :integer not null, primary key
# user_id :integer
# provider :string default(""), not null
# uid :string default(""), not null
# created_at :datetime not null
# updated_at :datetime not null
#
class Identity < ApplicationRecord
belongs_to :user, dependent: :destroy
validates :uid, presence: true, uniqueness: { scope: :provider }
validates :provider, presence: true
def self.find_for_oauth(auth)
find_or_create_by(uid: auth.uid, provider: auth.provider)
end
end

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@ -39,6 +39,7 @@
class User < ApplicationRecord
include Settings::Extend
include Omniauthable
ACTIVE_DURATION = 14.days
@ -52,6 +53,7 @@ class User < ApplicationRecord
:confirmable
devise :pam_authenticatable
devise :omniauthable
belongs_to :account, inverse_of: :user
belongs_to :invite, counter_cache: :uses, optional: true

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@ -0,0 +1,14 @@
- content_for :page_title do
= t('auth.confirm_email')
= simple_form_for(current_user, as: 'user', url: finish_signup_path, html: { role: 'form'}) do |f|
- if @show_errors && current_user.errors.any?
#error_explanation
- current_user.errors.full_messages.each do |msg|
= msg
%br
= f.input :email
.actions
= f.submit t('auth.confirm_email'), class: 'button'

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@ -14,4 +14,13 @@
.actions
= f.button :button, t('auth.login'), type: :submit
- if devise_mapping.omniauthable? and resource_class.omniauth_providers.any?
.simple_form.alternative-login
%h4= t('auth.or_log_in_with')
.actions
- resource_class.omniauth_providers.each do |provider|
= link_to omniauth_authorize_path(resource_name, provider), class: "button button-#{provider}" do
= t("auth.providers.#{provider}", default: provider.to_s.chomp("_oauth2").capitalize)
.form-footer= render 'auth/shared/links'

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@ -46,6 +46,7 @@ ignore_missing:
- 'terms.body_html'
- 'application_mailer.salutation'
- 'errors.500'
- 'auth.providers.*'
ignore_unused:
- 'activemodel.errors.*'

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@ -0,0 +1,59 @@
Rails.application.config.middleware.use OmniAuth::Builder do
# Vanilla omniauth stategies
end
Devise.setup do |config|
# Devise omniauth strategies
# CAS strategy
if ENV['CAS_ENABLED'] == 'true'
cas_options = {}
cas_options[:url] = ENV['CAS_URL'] if ENV['CAS_URL']
cas_options[:host] = ENV['CAS_HOST'] if ENV['CAS_HOST']
cas_options[:port] = ENV['CAS_PORT'] if ENV['CAS_PORT']
cas_options[:ssl] = ENV['CAS_SSL'] == 'true' if ENV['CAS_SSL']
cas_options[:validate_url] = ENV['CAS_VALIDATE_URL'] if ENV['CAS_VALIDATE_URL']
cas_options[:callback_url] = ENV['CAS_CALLBACK_URL'] if ENV['CAS_CALLBACK_URL']
cas_options[:logout_url] = ENV['CAS_LOGOUT_URL'] if ENV['CAS_LOGOUT_URL']
cas_options[:login_url] = ENV['CAS_LOGIN_URL'] if ENV['CAS_LOGIN_URL']
cas_options[:uid_field] = ENV['CAS_UID_FIELD'] || 'user' if ENV['CAS_UID_FIELD']
cas_options[:ca_path] = ENV['CAS_CA_PATH'] if ENV['CAS_CA_PATH']
cas_options[:disable_ssl_verification] = ENV['CAS_DISABLE_SSL_VERIFICATION'] == 'true' if ENV['CAS_DISABLE_SSL_VERIFICATION']
cas_options[:uid_key] = ENV['CAS_UID_KEY'] || 'user'
cas_options[:name_key] = ENV['CAS_NAME_KEY'] || 'name'
cas_options[:email_key] = ENV['CAS_EMAIL_KEY'] || 'email'
cas_options[:nickname_key] = ENV['CAS_NICKNAME_KEY'] || 'nickname'
cas_options[:first_name_key] = ENV['CAS_FIRST_NAME_KEY'] || 'firstname'
cas_options[:last_name_key] = ENV['CAS_LAST_NAME_KEY'] || 'lastname'
cas_options[:location_key] = ENV['CAS_LOCATION_KEY'] || 'location'
cas_options[:image_key] = ENV['CAS_IMAGE_KEY'] || 'image'
cas_options[:phone_key] = ENV['CAS_PHONE_KEY'] || 'phone'
config.omniauth :cas, cas_options
end
# SAML strategy
if ENV['SAML_ENABLED'] == 'true'
saml_options = {}
saml_options[:assertion_consumer_service_url] = ENV['SAML_ACS_URL'] if ENV['SAML_ACS_URL']
saml_options[:issuer] = ENV['SAML_ISSUER'] if ENV['SAML_ISSUER']
saml_options[:idp_sso_target_url] = ENV['SAML_IDP_SSO_TARGET_URL'] if ENV['SAML_IDP_SSO_TARGET_URL']
saml_options[:idp_sso_target_url_runtime_params] = ENV['SAML_IDP_SSO_TARGET_PARAMS'] if ENV['SAML_IDP_SSO_TARGET_PARAMS'] # FIXME: Should be parsable Hash
saml_options[:idp_cert] = ENV['SAML_IDP_CERT'] if ENV['SAML_IDP_CERT']
saml_options[:idp_cert_fingerprint] = ENV['SAML_IDP_CERT_FINGERPRINT'] if ENV['SAML_IDP_CERT_FINGERPRINT']
saml_options[:idp_cert_fingerprint_validator] = ENV['SAML_IDP_CERT_FINGERPRINT_VALIDATOR'] if ENV['SAML_IDP_CERT_FINGERPRINT_VALIDATOR'] # FIXME: Should be Lambda { |fingerprint| }
saml_options[:name_identifier_format] = ENV['SAML_NAME_IDENTIFIER_FORMAT'] if ENV['SAML_NAME_IDENTIFIER_FORMAT']
saml_options[:request_attributes] = {}
saml_options[:certificate] = ENV['SAML_CERT'] if ENV['SAML_CERT']
saml_options[:private_key] = ENV['SAML_PRIVATE_KEY'] if ENV['SAML_PRIVATE_KEY']
saml_options[:security] = {}
saml_options[:security][:want_assertions_signed] = ENV['SAML_SECURITY_WANT_ASSERTION_SIGNED'] == 'true'
saml_options[:security][:want_assertions_encrypted] = ENV['SAML_SECURITY_WANT_ASSERTION_ENCRYPTED'] == 'true'
saml_options[:attribute_statements] = {}
saml_options[:attribute_statements][:uid] = [ENV['SAML_ATTRIBUTES_STATEMENTS_UID']] if ENV['SAML_ATTRIBUTES_STATEMENTS_UID']
saml_options[:attribute_statements][:email] = [ENV['SAML_ATTRIBUTES_STATEMENTS_EMAIL']] if ENV['SAML_ATTRIBUTES_STATEMENTS_EMAIL']
saml_options[:attribute_statements][:full_name] = [ENV['SAML_ATTRIBUTES_STATEMENTS_FULL_NAME']] if ENV['SAML_ATTRIBUTES_STATEMENTS_FULL_NAME']
saml_options[:uid_attribute] = ENV['SAML_UID_ATTRIBUTE'] if ENV['SAML_UID_ATTRIBUTE']
config.omniauth :saml, saml_options
end
end

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@ -355,6 +355,7 @@ en:
auth:
agreement_html: By signing up you agree to follow <a href="%{rules_path}">the rules of the instance</a> and <a href="%{terms_path}">our terms of service</a>.
change_password: Security
confirm_email: Confirm email
delete_account: Delete account
delete_account_html: If you wish to delete your account, you can <a href="%{path}">proceed here</a>. You will be asked for confirmation.
didnt_get_confirmation: Didn't receive confirmation instructions?
@ -364,6 +365,10 @@ en:
logout: Logout
migrate_account: Move to a different account
migrate_account_html: If you wish to redirect this account to a different one, you can <a href="%{path}">configure it here</a>.
or_log_in_with: Or log in with
providers:
cas: CAS
saml: SAML
register: Sign up
resend_confirmation: Resend confirmation instructions
reset_password: Reset password

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@ -355,6 +355,7 @@ fr:
auth:
agreement_html: En vous inscrivant, vous souscrivez <a href="%{rules_path}">aux règles de linstance</a> et à <a href="%{terms_path}">nos conditions dutilisation</a>.
change_password: Sécurité
confirm_email: Confirmer mon adresse mail
delete_account: Supprimer le compte
delete_account_html: Si vous désirez supprimer votre compte, vous pouvez <a href="%{path}">cliquer ici</a>. Il vous sera demandé de confirmer cette action.
didnt_get_confirmation: Vous navez pas reçu les consignes de confirmation?
@ -364,6 +365,7 @@ fr:
logout: Se déconnecter
migrate_account: Déplacer vers un compte différent
migrate_account_html: Si vous voulez rediriger ce compte vers un autre, vous pouvez le <a href="%{path}">configurer ici</a>.
or_log_in_with: Ou authentifiez-vous avec
register: Sinscrire
resend_confirmation: Envoyer à nouveau les consignes de confirmation
reset_password: Réinitialiser le mot de passe

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@ -24,9 +24,11 @@ Rails.application.routes.draw do
devise_scope :user do
get '/invite/:invite_code', to: 'auth/registrations#new', as: :public_invite
match '/auth/finish_signup' => 'auth/confirmations#finish_signup', via: [:get, :patch], as: :finish_signup
end
devise_for :users, path: 'auth', controllers: {
omniauth_callbacks: 'auth/omniauth_callbacks',
sessions: 'auth/sessions',
registrations: 'auth/registrations',
passwords: 'auth/passwords',

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@ -0,0 +1,11 @@
class CreateIdentities < ActiveRecord::Migration[5.0]
def change
create_table :identities do |t|
t.references :user, foreign_key: { on_delete: :cascade }
t.string :provider, null: false, default: ''
t.string :uid, null: false, default: ''
t.timestamps
end
end
end

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@ -10,7 +10,7 @@
#
# It's strongly recommended that you check this file into your version control system.
ActiveRecord::Schema.define(version: 20180109143959) do
ActiveRecord::Schema.define(version: 20180204034416) do
# These are extensions that must be enabled in order to support this database
enable_extension "plpgsql"
@ -173,6 +173,15 @@ ActiveRecord::Schema.define(version: 20180109143959) do
t.index ["account_id", "target_account_id"], name: "index_follows_on_account_id_and_target_account_id", unique: true
end
create_table "identities", id: :serial, force: :cascade do |t|
t.integer "user_id"
t.string "provider", default: "", null: false
t.string "uid", default: "", null: false
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.index ["user_id"], name: "index_identities_on_user_id"
end
create_table "imports", force: :cascade do |t|
t.integer "type", null: false
t.boolean "approved", default: false, null: false
@ -526,6 +535,7 @@ ActiveRecord::Schema.define(version: 20180109143959) do
add_foreign_key "follow_requests", "accounts", name: "fk_76d644b0e7", on_delete: :cascade
add_foreign_key "follows", "accounts", column: "target_account_id", name: "fk_745ca29eac", on_delete: :cascade
add_foreign_key "follows", "accounts", name: "fk_32ed1b5560", on_delete: :cascade
add_foreign_key "identities", "users", on_delete: :cascade
add_foreign_key "imports", "accounts", name: "fk_6db1b6e408", on_delete: :cascade
add_foreign_key "invites", "users", on_delete: :cascade
add_foreign_key "list_accounts", "accounts", on_delete: :cascade

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@ -0,0 +1,5 @@
Fabricator(:identity) do
user nil
provider "MyString"
uid "MyString"
end

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@ -0,0 +1,5 @@
require 'rails_helper'
RSpec.describe Identity, type: :model do
pending "add some examples to (or delete) #{__FILE__}"
end