feat: add correlation identifier to interactions (#1218)

Author: mattkelley

example/my_adapter.js

@@ -140,6 +140,7 @@ class MyAdapter {
      * - trusted {string[]} - parameter names that come from a trusted source
      * - result {object} - interaction results object is expected here
      * - grantId {string} - grant identifier if there's a preexisting one
+     * - cid {string} - correlating identifier for the Authorization request
      * - session {object}
      * - session.uid {string} - uid of the session this Interaction belongs to
      * - session.cookie {string} - jti of the session this Interaction belongs to

lib/actions/authorization/interactions.js

@@ -109,6 +109,7 @@ export default async function interactions(resumeRouteName, ctx, next) {
     trusted: oidc.trusted,
     session: oidc.session,
     grant: oidc.grant,
+    cid: oidc.entities.Interaction?.cid || nanoid(),
     ...(oidc.deviceCode ? { deviceCode: oidc.deviceCode.jti } : undefined),
   });
 

lib/models/interaction.js

@@ -66,6 +66,7 @@ export default (provider) => class Interaction extends hasFormat(provider, 'Inte
       'grantId',
       'lastSubmission',
       'deviceCode',
+      'cid',
     ];
   }
 };