Memberships beside Kanidm: the invite makes the account too

Kanidm makes people, portal makes members. A site can switch to
memberships before its sign-in provider is one everyone already has.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GT37Z1Xtfd9pUuQtMTg6Yt

CHANGELOG.md

@@ -4,6 +4,10 @@ One line per change, grouped by the release that shipped it. Newest
 first. A release is a Cargo.toml bump plus a `v<version>` tag; the
 content repos pin the tag they run (see the end of this file).
 
+## Unreleased
+
+- With memberships as the people backend and a Kanidm token still set, an invite makes the Kanidm account as well (no group, the one-time link in the mail): Kanidm makes people, portal makes members, and a site can switch to memberships before its sign-in provider is one everyone already has.
+
 ## 0.5.8 (2026-09-30)
 
 - Fixed: 0.5.7 asked every provider for the `phoneNumber` scope, and Kanidm denies a sign-in that asks for a scope the person does not hold, so nobody could sign in. The scope is asked for only with `OIDC_EXTRA_SCOPES=phoneNumber` (Vipps). 0.5.7 must not be deployed on a Kanidm site.

docs/memberships.md

@@ -64,10 +64,11 @@ Unset, a `KANIDM_API_TOKEN` means Kanidm and no token means
 memberships. With memberships:
 
 - A desk invite writes an `invited` record and mails "log in at the
-  site, and your place is there". No account is made: the provider
-  makes people, portal makes members. So the provider has to be one
-  everyone can already sign in to, which is what Vipps Login is for a
-  Norwegian association, and what Kanidm is not.
+  site, and your place is there". The provider makes people, portal
+  makes members: with Vipps Login everyone can already sign in. A
+  Kanidm still configured beside memberships (`KANIDM_API_TOKEN`)
+  makes the account too, with no group and the one-time link in the
+  mail, so a site can switch to memberships before its provider does.
 - `grants` writes a record for the person the case is about, from the
   form's name and phone number or address.
 - `SEED_ADMIN_PHONE` or `SEED_ADMIN_EMAIL` writes the first person's.

src/people.rs

@@ -61,7 +61,25 @@ impl People {
                 let email = who.email.as_deref().ok_or_else(|| anyhow::anyhow!("Kanidm knows people by their address, and this one has none"))?;
                 kanidm.invite(name, email, group).await
             }
-            People::Memberships => crate::memberships::grant(state, group, name, who, by).await,
+            People::Memberships => {
+                let mut invited = crate::memberships::grant(state, group, name, who, by).await?;
+                // A Kanidm beside memberships makes the person, not the
+                // member: an account with no group, and the one-time
+                // link, so someone invited by address can sign in
+                // before the provider is one everyone already has.
+                if let (Some(kanidm), Some(email)) = (Kanidm::from_env(), who.email.as_deref()) {
+                    match kanidm.account(name, email).await {
+                        Ok(account) => {
+                            invited.username = account.username;
+                            invited.reset_link = account.reset_link;
+                            invited.link_expires_ms = account.link_expires_ms;
+                            invited.created = account.created;
+                        }
+                        Err(e) => tracing::warn!(group, %email, "the membership is on file, but no Kanidm account could be made: {e}"),
+                    }
+                }
+                Ok(invited)
+            }
         }
     }