Ensure GDPR compliance by default (Article 25 GDPR – privacy by design
and by default). Under GDPR, consent must be freely given, specific,
informed and unambiguous [1]. We were subscribing users without
explicity consent, which goes against the "No pre-ticked boxes"
principle.
For compatibility with existing installations, we're using a setting,
disabled by default. Once we release version 2.4.0 we will enable it by
default, which won't affect existing installations but only new ones.
[1] https://gdprinfo.eu/best-gdpr-newsletter-consent-examples-a-complete-guide-to-compliant-email-marketing
- name: :oidc → Identifier for this login provider in the app.
- scope: [:openid, :email, :profile] → Tells the provider we want the user’s ID (openid), their email, and basic profile info (name, picture, etc.).
- response_type: :code → Uses Authorization Code Flow, which is more secure because tokens are not exposed in the URL.
- issuer: Rails.application.secrets.oidc_issuer → The base URL of the OIDC provider (e.g., Auth0). Used to find its config.
- discovery: true → Automatically fetches the provider’s endpoints from its discovery document instead of manually setting them.
- client_auth_method: :basic → Sends client ID and secret using HTTP Basic Auth when exchanging the code for tokens.
Add system tests for OIDC Auth
Edit the oauth docs to support OIDC auth
This page isn't linked from anywhere and most Consul Democracy
installations don't even know it exists, so it's useless for most
people.
If we ever bring it back, we should at least add a link pointing to this
page.
