XNAT OpenID Connect Authentication Provider Plugin

Tested with Google's OpenID Connect and AAF

Pre-requisities

This plugin is for use with XNAT 1.7.5.x releases.

There are 2 ways to deploy XNAT-Web:

Deploying this plugin

When you have deployed the specific version of XNAT Web, you will need to deploy this XNAT plugin. For more information, please XNAT documentation on how to deploy plugins.

Again there are 2 ways to accomplish this:

1. Download the pre-built JAR

1. Download the latest development version here

2. Copy the plugin jar to your plugins folder: cp build/libs/xnat-openid-auth-plugin-all-1.0.0-SNAPSHOT.jar /data/xnat/home/plugins

2. Build the code and generate the JAR

To build the XNAT OpenID authentication provider plugin:

1. If you haven't already, clone this repository and cd to the newly cloned folder.

2. Build the plugin:

   ./gradlew clean xnatPluginJar

   On Windows, you can use the batch file:

   gradlew.bat clean fatJar

This should build the plugin in the file build/libs/xnat-openid-auth-plugin-all-1.0.0-SNAPSHOT.jar (the version may differ based on updates to the code).

1. Build the plugin jar or download the latest development version here

2. Optionally run the tests:

   ./gradlew clean test

3. Copy the plugin jar to your plugins folder:

   cp build/libs/xnat-openid-auth-plugin-all-1.0.0-SNAPSHOT.jar /data/xnat/home/plugins

Configuring and Testing

After deploying the plugin, you will need to configure it.

XNAT searches for authentication plugin configurations by looking for files whose names match the pattern:

*-provider.properties

It looks in the following locations:

• On the classpath in the folder META-INF/xnat/auth
• In a folder named auth under the XNAT home folder (usually configured with the xnat.home system variable)

This plugin will use any entries located in any of those properties files where the property type is set to "openid". See the sample properties in the resources directory.

Multiple open-id authentication servers can be configured using multiple properties file.

The following properties control the plugin:

provider.id

An authentication provider is identified using the provider.id value. The value should be unique across all authentication providers deployed in XNAT. localdb is a reserved provider id for the authentication performed by XNAT using the database.

siteUrl

The main domain, needed to build the full preEstablishedRedirUri

preEstablishedRedirUri

The return leg of OpenID request after the provider has authenticated, defaults to <siteUrl>/openid-login

openid.providerId.clientId

The ID obtained on app registration

openid.providerId.clientSecret

The Secret obtained on app registration

openid.providerId.scopes

Controls the scopes returned by the server: openid,profile,email

openid.providerId.link

Controls the link HTML snippet displayed on the Login page for this provider. Location of the link text can optionally be customised by modifying Login.vm.

openid.providerId.shouldFilterEmailDomains

Controls whether domains of the email should be compared against the whitelist: allowedEmailDomains.

openid.providerId.allowedEmailDomains

Comma delimted whitelist of domains.

openid.providerId.forceUserCreate

Allows skipping of user creation, usually set to true.

openid.providerId.userAutoEnabled

Flag to set the enabled property of new users, set to false to allow admins to manually enable users before allowing logins, set to true to allow immediate access.

openid.providerId.userAutoVerified

Flag to set the verified property of new users.

openid.providerId.userInfoUri

The optional URI of the UserInfo endpoint. If present then a call will be exchanged to this endpoint to collect additional information about the user.

openid.providerId.*Property

The property names used to populate user information during user creation. These are the property names from the information returned from the authentication provider.

openid.providerId.pkceEnabled

Flag to enable the PKCE feature in the authrozation code grant flow

openid.providerId.usernamePattern

Default pattern to define auth_user field of the xhbm_xdat_user_auth table

Sample Configuration

Sample configuration files are found here. Please note the need to rename these files before usage, see opening section of the file.