feat(email_verified): store email verification on a user

migrations/20260622000000_auth_users_email_verified_at.sql

@@ -0,0 +1,51 @@
+-- ════════════════════════════════════════════════════════════════════════════
+-- Email-verified signal (PR 23)
+-- ════════════════════════════════════════════════════════════════════════════
+-- Tracks when the user demonstrated control of their email address.
+--
+--   NULL     — unverified. Classic password-only signup whose user
+--              never clicked any magic-link, or admin-created user
+--              who hasn't logged in via magic-link.
+--   non-NULL — timestamp of the FIRST proof of control. Stamped on:
+--                * successful magic-link redemption (invitation OR
+--                  login-via-email — clicking the link IS the proof).
+--                * OIDC JIT-provisioning when the IdP's claim
+--                  `email_verified` was true. The OIDC callback already
+--                  refuses to proceed without that claim, so the
+--                  timestamp is set unconditionally at JIT creation.
+--                * Retroactive OIDC upgrade: existing user whose
+--                  email_verified_at is NULL but whose next OIDC login
+--                  carries a verified claim gets the stamp at that
+--                  login.
+--
+-- PR 23 introduces the signal only — no policy gates yet. Future
+-- env (e.g. OXICLOUD_REQUIRE_EMAIL_VERIFICATION) will block uploads /
+-- shares / etc. for unverified users.
+--
+-- Backfill rules:
+--   * OIDC-linked users — the IdP already vetted the email at
+--     provisioning time. Use last_login_at if set (typical), else
+--     created_at as the verification timestamp.
+--   * External users who have logged in at least once — they must have
+--     clicked their invitation link to land last_login_at. Use the
+--     last login time as a conservative lower bound on when the
+--     verification proof happened.
+--   * Everyone else stays NULL — including OIDC-less external users
+--     who got invited but never clicked (the magic-link is still
+--     sitting in their inbox), and classic password users who never
+--     went through a magic-link flow.
+
+ALTER TABLE auth.users
+    ADD COLUMN email_verified_at TIMESTAMPTZ NULL;
+
+UPDATE auth.users
+   SET email_verified_at = COALESCE(last_login_at, created_at)
+ WHERE oidc_subject IS NOT NULL
+    OR (is_external = TRUE AND last_login_at IS NOT NULL);
+
+COMMENT ON COLUMN auth.users.email_verified_at IS
+    'When the user demonstrated control of their email address.
+     NULL = unverified. Set on successful magic-link redemption OR
+     OIDC JIT with email_verified=true claim. Idempotent — the first
+     verification timestamp is preserved. PR 23 ships the signal;
+     future policy PRs gate features on it.';

src/application/dtos/user_dto.rs

@@ -40,6 +40,13 @@ pub struct UserDto {
     /// `given_name`.
     #[serde(skip_serializing_if = "Option::is_none")]
     pub family_name: Option<String>,
+    /// When the user first demonstrated control of their email (PR 23).
+    /// `None` = unverified (omitted from JSON). Stamped on the first
+    /// successful magic-link redemption or OIDC JIT with verified
+    /// claim. Idempotent — the original timestamp is preserved on
+    /// subsequent verifications.
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub email_verified_at: Option<DateTime<Utc>>,
 }
 
 impl From<User> for UserDto {
@@ -61,6 +68,7 @@ impl From<User> for UserDto {
             is_external: user.is_external(),
             given_name: user.given_name().map(str::to_string),
             family_name: user.family_name().map(str::to_string),
+            email_verified_at: user.email_verified_at(),
         }
     }
 }

src/application/services/auth_application_service.rs

@@ -794,6 +794,11 @@ impl AuthApplicationService {
             lc.dispatch_login(&user).await;
         }
         user.register_login();
+        // PR 23: clicking the magic-link IS proof of email control —
+        // stamp the verification (idempotent, preserves the first
+        // timestamp). Applies to both invitation and login-via-email
+        // tokens.
+        user.mark_email_verified();
         self.user_storage.update_user(user.clone()).await?;
 
         let access_token = self.token_service.generate_access_token(&user)?;
@@ -827,11 +832,13 @@ impl AuthApplicationService {
             expires_in: self.token_service.refresh_token_expiry_secs(),
         };
 
-        Ok(MagicLinkRedeemResult::Allowed(Box::new(MagicLinkRedemption {
-            auth,
-            resource_kind: mlt.resource_kind(),
-            resource_id: mlt.resource_id(),
-        })))
+        Ok(MagicLinkRedeemResult::Allowed(Box::new(
+            MagicLinkRedemption {
+                auth,
+                resource_kind: mlt.resource_kind(),
+                resource_id: mlt.resource_id(),
+            },
+        )))
     }
 
     /// Verifies username/password credentials without creating a session.
@@ -1887,6 +1894,12 @@ impl AuthApplicationService {
                 }
                 existing_user.register_login();
                 existing_user.set_image(claims.picture.clone());
+                // PR 23: retroactive email verification for OIDC users
+                // who predate the column. The OIDC callback already
+                // enforced `claims.email_verified == true` upstream, so
+                // any user reaching this branch has a verified email
+                // by the IdP's word; stamping is safe and idempotent.
+                existing_user.mark_email_verified();
                 self.user_storage.update_user(existing_user.clone()).await?;
                 existing_user
             }
@@ -1983,6 +1996,11 @@ impl AuthApplicationService {
                 new_user.set_image(claims.picture.clone());
                 new_user.set_given_name(claims.given_name.clone());
                 new_user.set_family_name(claims.family_name.clone());
+                // PR 23: the OIDC callback rejected any caller upstream
+                // whose `email_verified` claim wasn't true, so users
+                // reaching this branch have an IdP-vetted email. Stamp
+                // the verification at JIT-create time.
+                new_user.mark_email_verified();
 
                 let created_user = self.user_storage.create_user(new_user).await?;
 

src/domain/entities/user.rs

@@ -61,6 +61,17 @@ pub struct User {
     /// standard claim `family_name` at JIT provisioning, or via the
     /// profile-edit endpoint. External users start with `None`.
     family_name: Option<String>,
+    /// When the user demonstrated control of their email address (PR 23).
+    /// `None` = unverified. `Some(ts)` = timestamp of the first proof,
+    /// preserved across subsequent verifications.
+    ///
+    /// Set on successful magic-link redemption (invitation OR
+    /// login-via-email — clicking the link proves the inbox is theirs)
+    /// or on OIDC JIT with `email_verified=true` claim. Classic password
+    /// signups stay `None` until the user goes through a magic-link
+    /// flow. PR 23 ships the signal only — future policy PRs gate
+    /// features (uploads, shares, etc.) on this column.
+    email_verified_at: Option<DateTime<Utc>>,
 }
 
 impl User {
@@ -146,6 +157,10 @@ impl User {
             is_external,
             given_name: None,
             family_name: None,
+            // PR 23: unverified at creation. Stamped on the first
+            // magic-link redemption or OIDC JIT (where the IdP has
+            // already confirmed the email).
+            email_verified_at: None,
         })
     }
 
@@ -187,6 +202,7 @@ impl User {
             is_external: false,
             given_name: None,
             family_name: None,
+            email_verified_at: None,
         }
     }
 
@@ -209,6 +225,7 @@ impl User {
         is_external: bool,
         given_name: Option<String>,
         family_name: Option<String>,
+        email_verified_at: Option<DateTime<Utc>>,
     ) -> Self {
         Self {
             id,
@@ -228,6 +245,7 @@ impl User {
             is_external,
             given_name,
             family_name,
+            email_verified_at,
         }
     }
 
@@ -331,6 +349,32 @@ impl User {
         self.family_name.as_deref()
     }
 
+    /// When the user first demonstrated control of their email (PR 23).
+    /// `None` = unverified. See `mark_email_verified` for the trigger
+    /// points (magic-link redemption, OIDC JIT with verified claim).
+    pub fn email_verified_at(&self) -> Option<DateTime<Utc>> {
+        self.email_verified_at
+    }
+
+    /// `true` iff the user has demonstrated control of their email.
+    /// Convenience wrapper over `email_verified_at().is_some()`.
+    pub fn is_email_verified(&self) -> bool {
+        self.email_verified_at.is_some()
+    }
+
+    /// Stamp the first proof-of-email-control timestamp. **Idempotent**:
+    /// if `email_verified_at` is already `Some`, this is a no-op so
+    /// re-verifications preserve the original time. Call from the
+    /// magic-link redemption path and from OIDC JIT when the IdP
+    /// confirms the email.
+    pub fn mark_email_verified(&mut self) {
+        if self.email_verified_at.is_none() {
+            let now = Utc::now();
+            self.email_verified_at = Some(now);
+            self.updated_at = now;
+        }
+    }
+
     pub fn set_image(&mut self, image: Option<String>) {
         self.image = image;
         self.updated_at = Utc::now();

src/infrastructure/repositories/pg/user_pg_repository.rs

@@ -96,10 +96,10 @@ impl UserRepository for UserPgRepository {
                             storage_quota_bytes, storage_used_bytes,
                             created_at, updated_at, last_login_at, active,
                             oidc_provider, oidc_subject, is_external,
-                            given_name, family_name
+                            given_name, family_name, email_verified_at
                         ) VALUES (
                             $1, $2, $3, $4, $5::auth.userrole, $6, $7, $8, $9, $10, $11,
-                            $12, $13, $14, $15, $16
+                            $12, $13, $14, $15, $16, $17
                         )
                         RETURNING *
                         "#,
@@ -120,6 +120,7 @@ impl UserRepository for UserPgRepository {
                 .bind(user_clone.is_external())
                 .bind(user_clone.given_name())
                 .bind(user_clone.family_name())
+                .bind(user_clone.email_verified_at())
                 .execute(&mut **tx)
                 .await
                 .map_err(Self::map_sqlx_error)?;
@@ -144,7 +145,7 @@ impl UserRepository for UserPgRepository {
                 storage_quota_bytes, storage_used_bytes,
                 created_at, updated_at, last_login_at, active,
                 oidc_provider, oidc_subject, image, is_external,
-                given_name, family_name
+                given_name, family_name, email_verified_at
             FROM auth.users
             WHERE id = $1
             "#,
@@ -179,6 +180,7 @@ impl UserRepository for UserPgRepository {
             row.get("is_external"),
             row.get("given_name"),
             row.get("family_name"),
+            row.get("email_verified_at"),
         ))
     }
 
@@ -191,7 +193,7 @@ impl UserRepository for UserPgRepository {
                 storage_quota_bytes, storage_used_bytes,
                 created_at, updated_at, last_login_at, active,
                 oidc_provider, oidc_subject, image, is_external,
-                given_name, family_name
+                given_name, family_name, email_verified_at
             FROM auth.users
             WHERE username = $1
             "#,
@@ -226,6 +228,7 @@ impl UserRepository for UserPgRepository {
             row.get("is_external"),
             row.get("given_name"),
             row.get("family_name"),
+            row.get("email_verified_at"),
         ))
     }
 
@@ -238,7 +241,7 @@ impl UserRepository for UserPgRepository {
                 storage_quota_bytes, storage_used_bytes,
                 created_at, updated_at, last_login_at, active,
                 oidc_provider, oidc_subject, image, is_external,
-                given_name, family_name
+                given_name, family_name, email_verified_at
             FROM auth.users
             WHERE email = $1
             "#,
@@ -273,6 +276,7 @@ impl UserRepository for UserPgRepository {
             row.get("is_external"),
             row.get("given_name"),
             row.get("family_name"),
+            row.get("email_verified_at"),
         ))
     }
 
@@ -299,7 +303,8 @@ impl UserRepository for UserPgRepository {
                             active = $10,
                             image = $11,
                             given_name = $12,
-                            family_name = $13
+                            family_name = $13,
+                            email_verified_at = $14
                         WHERE id = $1
                         "#,
                 )
@@ -316,6 +321,7 @@ impl UserRepository for UserPgRepository {
                 .bind(user_clone.image())
                 .bind(user_clone.given_name())
                 .bind(user_clone.family_name())
+                .bind(user_clone.email_verified_at())
                 .execute(&mut **tx)
                 .await
                 .map_err(Self::map_sqlx_error)?;
@@ -388,7 +394,7 @@ impl UserRepository for UserPgRepository {
                 storage_quota_bytes, storage_used_bytes,
                 created_at, updated_at, last_login_at, active,
                 oidc_provider, oidc_subject, image, is_external,
-                given_name, family_name
+                given_name, family_name, email_verified_at
             FROM auth.users
             WHERE ($3 OR is_external = FALSE)
             ORDER BY created_at DESC
@@ -430,6 +436,7 @@ impl UserRepository for UserPgRepository {
                     row.get("is_external"),
                     row.get("given_name"),
                     row.get("family_name"),
+                    row.get("email_verified_at"),
                 )
             })
             .collect();
@@ -451,7 +458,7 @@ impl UserRepository for UserPgRepository {
                 storage_quota_bytes, storage_used_bytes,
                 created_at, updated_at, last_login_at, active,
                 oidc_provider, oidc_subject, image, is_external,
-                given_name, family_name
+                given_name, family_name, email_verified_at
             FROM auth.users
             WHERE (username ILIKE $1 OR email ILIKE $1)
               AND ($3 OR is_external = FALSE)
@@ -493,6 +500,7 @@ impl UserRepository for UserPgRepository {
                     row.get("is_external"),
                     row.get("given_name"),
                     row.get("family_name"),
+                    row.get("email_verified_at"),
                 )
             })
             .collect();
@@ -580,7 +588,7 @@ impl UserRepository for UserPgRepository {
                 storage_quota_bytes, storage_used_bytes,
                 created_at, updated_at, last_login_at, active,
                 oidc_provider, oidc_subject, image, is_external,
-                given_name, family_name
+                given_name, family_name, email_verified_at
             FROM auth.users
             WHERE role::text = $1
             ORDER BY created_at DESC
@@ -619,6 +627,7 @@ impl UserRepository for UserPgRepository {
                     row.get("is_external"),
                     row.get("given_name"),
                     row.get("family_name"),
+                    row.get("email_verified_at"),
                 )
             })
             .collect();
@@ -655,7 +664,7 @@ impl UserRepository for UserPgRepository {
                 storage_quota_bytes, storage_used_bytes,
                 created_at, updated_at, last_login_at, active,
                 oidc_provider, oidc_subject, image, is_external,
-                given_name, family_name
+                given_name, family_name, email_verified_at
             FROM auth.users
             WHERE oidc_provider = $1 AND oidc_subject = $2
             "#,
@@ -690,6 +699,7 @@ impl UserRepository for UserPgRepository {
             row.get("is_external"),
             row.get("given_name"),
             row.get("family_name"),
+            row.get("email_verified_at"),
         ))
     }
 

tests/api/external_users.hurl

@@ -224,6 +224,9 @@ jsonpath "$.id" == "{{bob_user_id}}"
 jsonpath "$.is_external" == true
 jsonpath "$.email" == "bob@externalcompany.com"
 jsonpath "$.username" not exists
+# PR 23 — bob redeemed his invitation magic-link in Step 8, so his
+# email_verified_at was stamped at that time and stays set.
+jsonpath "$.email_verified_at" exists
 
 # 11d — bob CAN look up Alice (his granter) — shared-grant relationship
 #        lets the external recipient resolve the sharer's display name +
@@ -235,6 +238,9 @@ HTTP 200
 [Asserts]
 jsonpath "$.id" == "{{alice_user_id}}"
 jsonpath "$.is_external" == false
+# PR 23 — alice is the admin set up via classic password registration
+# and has never clicked a magic-link, so her email is unverified.
+jsonpath "$.email_verified_at" not exists
 
 # 11e — bob CANNOT enumerate unrelated users. A random UUID returns 404
 #        (anti-enumeration; same response as "user doesn't exist").

tests/api/registration.hurl

@@ -137,6 +137,11 @@ HTTP 200
 jsonpath "$.email" == "pr18-emailonly@example.com"
 jsonpath "$.is_external" == false
 jsonpath "$.username" not exists
+# PR 23 — the user redeemed the welcome magic-link in Step 5b, so
+# email_verified_at is stamped (the click IS the proof of inbox
+# control, regardless of whether the redemption went through the
+# direct or cross-browser-confirm path).
+jsonpath "$.email_verified_at" exists
 [Captures]
 pr18_user_id: jsonpath "$.id"