Spring Security OAuth2 Plugin

Main differences with the Grails 2 plugin:

• no more dependency on https://github.com/antony/grails-oauth-scribe but some code of that plugin was ported in this
• Relies on Scribejava to do most of the OAuth logic
• simplest code as possible
• easy to extend

Installation

Use v1.2.x for Grails 3.0 to 3.2

Use v1.3.x for Grails 3.3+.

Add the following dependencies in build.gradle

dependencies {
...
    compile 'org.grails.plugins:spring-security:3.2.+'
    compile 'org.grails.plugins:spring-security-oauth2:1.2.0'
...
}

You will also need at least one provider extension, i.e the grails-spring-security-oauth2-google plugin Change the version to reflect the actual version you would like to use.

You can configure the following parameters in your application.yml. This is fully optional

grails:
    plugin:
        springsecurity:
            oauth2:
                active: true    #whether the whole plugin is active or not
                registration:
                    askToLinkOrCreateAccountUri: '/oauth2/ask' # The URI that is called to aks the user to either create a new account or link to an existing account
                    roleNames: ['ROLE_USER'] #A list of role names that should be automatically granted to an OAuth User. The roles will be created if they do not exist

Once you have an User domain class, initialize this plugin by using the init script grails init-oauth2 <domain-class-package> <user-class-name> <oauthid-class-name> In example: grails init-oauth2 com.yourapp User OAuthID That will create the domain class com.yourapp.oAuthID

Finally add:

static hasMany = [oAuthIDs: OAuthID]

to your user domain class.

Extensions

List of known extension

• Google
• Facebook
• [Github] (https://github.com/rpalcolea/grails-spring-security-oauth2-github)

How to create a new provider plugin

1. Create a new plugin with grails create-plugin spring-security-oauth2-myProvider
2. Add the following plugins as dependency in build.gradle:
   • provided 'org.grails.plugins:spring-security-core:3.+'
   • provided 'org.grails.plugins:spring-security-oauth2:1.1.+'
3. Create a service in your plugin that extends OAuth2AbstractProviderService and implement the abstract methods. You can override the other methods for fine-tuning if needed.

License

Apache 2