OneLogin SAML Bundle for Symfony. (https://github.com/onelogin/php-saml)
This bundle supports Symfony 5 and earlier.
For newer Symfony versions you can use nbgrp/onelogin-saml-bundle.
Install with composer
composer require hslavich/oneloginsaml-bundleEnable the bundle in config/bundles.php (if you don't use Symfony Flex)
return [
// ...
Hslavich\OneloginSamlBundle\HslavichOneloginSamlBundle::class => ['all' => true],
]Configure SAML metadata in config/packages/hslavich_onelogin_saml.yaml. Check https://github.com/onelogin/php-saml#settings for more info.
hslavich_onelogin_saml:
# Basic settings
idp:
entityId: 'http://id.example.com/saml2/idp/metadata.php'
singleSignOnService:
url: 'http://id.example.com/saml2/idp/SSOService.php'
binding: 'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect'
singleLogoutService:
url: 'http://id.example.com/saml2/idp/SingleLogoutService.php'
binding: 'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect'
x509cert: ''
sp:
entityId: 'http://myapp.com/app_dev.php/saml/metadata'
assertionConsumerService:
url: 'http://myapp.com/app_dev.php/saml/acs'
binding: 'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST'
singleLogoutService:
url: 'http://myapp.com/app_dev.php/saml/logout'
binding: 'urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect'
privateKey: ''
# Optional settings
baseurl: 'http://myapp.com'
strict: true
debug: true
security:
nameIdEncrypted: false
authnRequestsSigned: false
logoutRequestSigned: false
logoutResponseSigned: false
wantMessagesSigned: false
wantAssertionsSigned: false
wantNameIdEncrypted: false
requestedAuthnContext: true
signMetadata: false
wantXMLValidation: true
relaxDestinationValidation: false
destinationStrictlyMatches: true
rejectUnsolicitedResponsesWithInResponseTo: false
signatureAlgorithm: 'http://www.w3.org/2001/04/xmldsig-more#rsa-sha256'
digestAlgorithm: 'http://www.w3.org/2001/04/xmlenc#sha256'
contactPerson:
technical:
givenName: 'Tech User'
emailAddress: '[email protected]'
support:
givenName: 'Support User'
emailAddress: '[email protected]'
administrative:
givenName: 'Administrative User'
emailAddress: '[email protected]'
organization:
en:
name: 'Example'
displayname: 'Example'
url: 'http://example.com'If you don't want to set contactPerson or organization, don't add those parameters instead of leaving them blank.
Configure firewall and user provider in config/packages/security.yaml
security:
# ...
providers:
saml_provider:
# Basic provider instantiates a user with default roles
saml:
user_class: 'AppBundle\Entity\User'
default_roles: ['ROLE_USER']
firewalls:
app:
pattern: ^/
saml:
# Match SAML attribute 'uid' with username.
# Uses getNameId() method by default.
username_attribute: uid
# Use the attribute's friendlyName instead of the name
use_attribute_friendly_name: true
check_path: saml_acs
login_path: saml_login
logout:
path: saml_logout
access_control:
- { path: ^/saml/login, roles: PUBLIC_ACCESS }
- { path: ^/saml/metadata, roles: PUBLIC_ACCESS }
- { path: ^/, roles: ROLE_USER }Edit your config/routing or config/routes.yaml depending on your Symfony version.
hslavich_saml_sp:
resource: "@HslavichOneloginSamlBundle/Resources/config/routing.yml"Your user class must implement SamlUserInterface
<?php
namespace App\Entity;
use Hslavich\OneloginSamlBundle\Security\User\SamlUserInterface;
class User implements SamlUserInterface
{
protected $username;
protected $email;
// ...
public function setSamlAttributes(array $attributes)
{
$this->email = $attributes['mail'][0];
}
}Then you can get attributes from user object
$email = $this->getUser()->getEmail();You can integrate SAML authentication with traditional login form by editing your security.yaml:
security:
enable_authenticator_manager: true
providers:
user_provider:
# Loads user from user repository
entity:
class: App:User
property: username
firewalls:
default:
saml:
username_attribute: uid
check_path: saml_acs
login_path: saml_login
failure_path: saml_login
always_use_default_target_path: true
# Traditional login form
form_login:
login_path: /login
check_path: /login_check
always_use_default_target_path: true
logout:
path: saml_logoutThen you can add a link to route saml_login in your login page in order to start SAML sign on.
<a href="{{ path('saml_login') }}">SAML Login</a>It's possible to have a new user provisioned based off the received SAML attributes when the user provider cannot find a user.
Edit firewall settings in security.yaml:
security:
# ...
providers:
saml_provider:
# Loads user from user repository
entity:
class: App\Entity\User
property: username
firewalls:
default:
provider: saml_provider
saml:
username_attribute: uid
# User factory service
user_factory: my_user_factory
logout:
path: saml_logoutIn order for a user to be provisioned, you must use a user provider that throws
UserNotFoundException(e.g.EntityUserProvideras used in the example above). TheSamlUserProviderdoes not throw this exception which will cause an empty user to be returned when a matching user cannot be found.
Create the user factory service editing services.yaml:
services:
my_user_factory:
class: Hslavich\OneloginSamlBundle\Security\User\SamlUserFactory
arguments:
# User class
- App\Entity\User
# Attribute mapping.
- password: 'notused'
email: $mail
name: $cn
lastname: $sn
roles: ['ROLE_USER']Fields with '$' references to SAML attribute value.
Or you can create your own User Factory that implements SamlUserFactoryInterface
<?php
namespace App\Security;
use App\Entity\User;
use Hslavich\OneloginSamlBundle\Security\Authentication\Token\SamlTokenInterface;
use Hslavich\OneloginSamlBundle\Security\User\SamlUserFactoryInterface;
use Symfony\Component\Security\Core\User\UserInterface;
class UserFactory implements SamlUserFactoryInterface
{
public function createUser($username, array $attributes = []): UserInterface
{
$user = new User();
$user->setRoles(['ROLE_USER']);
$user->setUsername($username);
$user->setPassword('notused');
$user->setEmail($attributes['mail'][0]);
$user->setName($attributes['cn'][0]);
return $user;
}
}services:
my_user_factory:
class: App\Security\UserFactoryFor versions prior to 2.1 the
createUsersignature was different:public function createUser(SamlTokenInterface $token): UserInterface { $username = $token->getUsername(); $attributes = $token->getAttributes(); ... }
Symfony EventDispatcher component and Doctrine ORM are required.
Edit firewall settings in security.yaml:
security:
# ...
firewalls:
# ...
default:
saml:
# ...
persist_user: trueTo use non-default entity manager specify it name by hslavich_onelogin_saml.entityManagerName config option.
User persistence is performing by event listeners Hslavich\OneloginSamlBundle\EventListener\User\UserCreatedListener
and Hslavich\OneloginSamlBundle\EventListener\User\UserModifiedListener that can be decorated if necessary to override
the default behavior. Also, you can make your own listeners for Hslavich\OneloginSamlBundle\Event\UserCreatedEvent
and Hslavich\OneloginSamlBundle\Event\UserModifiedEvent events.
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