Grouper External Authentication Plugin

Grouper plugin that provides configurable authentication. Features include

• Authentication for UI

• Multiple methods, including SAML2 and OIDC

Usage

Version 4.x

For a fully integrated sample configuration, see src/test/docker in the git repo at https://github.internet2.edu/internet2/grouper-ext-auth

1. Add plugin to Grouper image

   COPY grouper-authentication-plugin.jar /opt/grouper/plugins

2. Enable Plugins

   In grouper.properties, add properties

   grouper.osgi.enable = true
   grouper.osgi.jar.dir = /opt/grouper/plugins
   grouper.osgi.framework.boot.delegation=org.osgi.*,javax.*,org.apache.commons.logging,edu.internet2.middleware.grouperClient.*,edu.internet2.middleware.grouper.*,org.w3c.*,org.xml.*,sun.*
   
   grouperOsgiPlugin.0.jarName = grouper-authentication-plugin.jar

   grouper.osgi.jar.dir should point to the directory you copied the file to in your image build file

   grouperOsgiPlugin.0.jarName should be the name of the file you copied in

3. Configure UI

   In `grouper-ui.properties, add properties appropriate for desired authentication. Note that only one can be used.

   Most of the configuration for the underlying authentication library is exposed to the Grouper configuration. Any field in the Java classes can be directly set using the field name or a setter used by using a related property (setting attribute=value will call setAttribute(value) )

   1. SAML2

      For SAML2, for example:

      external.authentication.provider = saml
      external.authentication.saml.identityProviderEntityId = https://idp.unicon.local/idp/shibboleth
      external.authentication.saml.serviceProviderEntityId = http://localhost:8080/grouper
      external.authentication.saml.serviceProviderMetadataPath = file:/opt/grouper/sp-metadata.xml
      external.authentication.saml.identityProviderMetadataPath = file:/opt/grouper/idp-metadata.xml
      external.authentication.saml.keystorePath = file:/opt/grouper/here.key
      external.authentication.saml.keystorePassword = testme
      external.authentication.saml.privateKeyPassword = testme
      external.authentication.saml.attributeAsId = urn:oid:0.9.2342.19200300.100.1.1

      For more information and more options, see https://www.pac4j.org/5.7.x/docs/clients/saml.html and https://github.com/pac4j/pac4j/blob/5.7.x/pac4j-saml/src/main/java/org/pac4j/saml/config/SAML2Configuration.java

   2. OIDC

      For OIDC, for example:

      external.authentication.provider = oidc
      external.authentication.oidc.clientId = *****
      external.authentication.oidc.discoveryURI = https://unicon.okta.com/.well-known/openid-configuration
      external.authentication.oidc.secret = *****
      external.authentication.oidc.claimAsUsername = preferred_username

      For more information and more options, see https://www.pac4j.org/5.7.x/docs/clients/openid-connect.html and https://github.com/pac4j/pac4j/blob/5.7.x/pac4j-oidc/src/main/java/org/pac4j/oidc/config/OidcConfiguration.java

Version 5.x+

TODO

More Information

If assistance is needed (e.g., bugs, errors, configuration samples), feel free to open a ticket in the github repository or ask on the Slack channel