A generic SAML strategy for OmniAuth.
- OmniAuth 1.1+
- Ruby 1.9.2
Use the SAML strategy as a middleware in your application:
require 'omniauth' use OmniAuth::Strategies::SAML, :assertion_consumer_service_url => "consumer_service_url", :issuer => "issuer", :idp_sso_target_url => "idp_sso_target_url", :idp_cert => "-----BEGIN CERTIFICATE-----\n...-----END CERTIFICATE-----", :idp_cert_fingerprint => "E7:91:B2:E1:...", :name_identifier_format => "urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress"
or in your Rails application:
Rails.application.config.middleware.use OmniAuth::Builder do provider :saml, :assertion_consumer_service_url => "consumer_service_url", :issuer => "rails-application", :idp_sso_target_url => "idp_sso_target_url", :idp_cert => "-----BEGIN CERTIFICATE-----\n...-----END CERTIFICATE-----", :idp_cert_fingerprint => "E7:91:B2:E1:...", :name_identifier_format => "urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress" end
For IdP-initiated SSO, users should directly access the IdP SSO target URL. Set the
href of your application's login link to the value of
idp_sso_target_url. For SP-initiated SSO, link to
To ease the configuration of the SAML SP on IdP side, the required SAML ACS metadata that is needed for the IdP configuration can be retrieved from 'http://yourhost.com/auth/saml/metadata'. Just give this URL to your IdP administrator and he'll be happy..
:assertion_consumer_service_url- The URL at which the SAML assertion should be received. With OmniAuth this is typically
:issuer- The name of your application. Some identity providers might need this to establish the identity of the service provider requesting the login. Required.
:idp_sso_target_url- The URL to which the authentication request should be sent. This would be on the identity provider. Required.
:idp_cert- The identity provider's certificate in PEM format. Takes precedence over the fingerprint option below. This option or
:idp_cert_fingerprintmust be present.
:idp_cert_fingerprint- The SHA1 fingerprint of the certificate, e.g. "90:CC:16:F0:8D:...". This is provided from the identity provider when setting up the relationship. This option or
:idp_certmust be present.
:name_identifier_format- Describes the format of the username required by this application. If you need the email address, use "urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress". See http://docs.oasis-open.org/security/saml/v2.0/saml-core-2.0-os.pdf section 8.3 for other options. Note that the identity provider might not support all options. Used during SP-initiated SSO. Optional.
Onelogin::Saml::Settingsclass in the Ruby SAML gem for additional supported options.
Authored by Raecoo Cao, Todd W Saxton, Ryan Wilcox, Rajiv Aaron Manglani, and Steven Anderson.
Maintained by Rajiv Aaron Manglani.
Copyright (c) 2011-2012 Practically Green, Inc.. All rights reserved. Released under the MIT license.
Portions Copyright (c) 2007 Sun Microsystems Inc.
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