refactor(userLifecycle): add user lifecycle, more clarety + better integration for the future
This commit is contained in:
Edouard Vanbelle
@@ -21,4 +21,5 @@ pub mod storage_ports;
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pub mod thumbnail_ports;
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pub mod transcode_ports;
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pub mod trash_ports;
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pub mod user_lifecycle;
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pub mod zip_ports;
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@@ -0,0 +1,186 @@
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//! User-lifecycle hook port.
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//!
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//! Observer notified by [`AuthApplicationService`] when a user transitions
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//! through one of four lifecycle events: created, login, logout, deleted.
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//! Register concrete impls with [`UserLifecycleService`] during DI wiring;
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//! the dispatcher fans out each event to every registered hook.
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//!
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//! Each impl owns ONE concern. Folder service owns home-folder provisioning,
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//! authz engine owns its cache invalidation, audit service owns the audit
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//! trail, etc. New services plug in by registering a hook; the dispatcher
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//! itself never gains domain knowledge.
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//!
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//! # Convention: explicit no-ops
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//!
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//! Every implementor **must** provide all four methods — use an explicit
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//! one-liner `Ok(())` for events the implementor does not care about. This
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//! forces conscious acknowledgement of every lifecycle event rather than
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//! silent omission via trait defaults. Mirrors the [`FileLifecycleHook`]
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//! convention at `application/ports/file_lifecycle.rs`.
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//!
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//! # Convention: async + per-event semantics
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//!
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//! Unlike [`FileLifecycleHook`] (sync fire-and-forget), user-lifecycle
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//! events are async because some require synchronous semantics:
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//! provisioning must finish before the session token is returned;
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//! deletion cleanup must commit atomically with the user DELETE.
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//!
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//! Per-event failure model (encoded in the dispatcher, not the trait):
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//!
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//! | Event | Awaited? | On `Err`? |
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//! |--------------------|----------|----------------------------------------|
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//! | `on_user_created` | yes | log-and-continue (retry on next login) |
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//! | `on_user_login` | yes | log-and-continue (idempotent retry) |
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//! | `on_user_logout` | no | fire-and-forget (spawned), error logged|
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//! | `on_user_deleted` | yes | log-and-continue today; PR 4 will switch to abort-the-transaction once the dispatcher fires inside the delete tx |
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//!
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//! # Tips for hook implementors
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//!
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//! 1. **First-ever login detection.** `on_user_login` fires after
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//! credentials validate but **before** `user.register_login()` is
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//! called for this session. So `user.last_login_at().is_none()` is a
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//! reliable "this is the first login since account creation" signal —
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//! useful for welcome emails, one-shot default-resource seeding,
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//! "complete your profile" prompts.
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//!
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//! 2. **External-user short-circuit.** Every hook that provisions or
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//! manages user-owned resources (folders, calendars, address books)
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//! should start with `if user.is_external() { return Ok(()); }`.
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//! External users are grant-only — they don't own storage. The
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//! `is_external` flag lands in PR 2 of this work; until then, treat
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//! every user as internal.
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//!
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//! 3. **Idempotency is mandatory.** `on_user_login` fires on every
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//! successful authentication. A hook that creates a resource must
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//! first check whether the resource already exists. Same for cache
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//! invalidation, audit deduplication, etc. The `on_user_login`
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//! safety-net only works if hooks no-op when their work is already
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//! done.
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//!
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//! 4. **External → internal conversion needs no special event.** When
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//! admin converts an external user to internal (`UPDATE auth.users
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//! SET is_external = FALSE`), the user's next login fires
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//! `on_user_login` with the new flag value. Idempotent hooks see
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//! `!is_external` + missing resources → provision. No
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//! `on_user_converted` method needed.
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//!
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//! 5. **Per-session logout firing.** When a flow revokes multiple
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//! sessions (e.g. `revoke_all_user_sessions` on password change),
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//! today the dispatcher fires `on_user_logout` ONCE per logical
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//! revoke-call. PR 4's `SessionRevocationLifecycleHook` will refine
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//! this to once-per-session for proper audit granularity. Hooks must
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//! therefore accept N redundant calls with the same reason — keep
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//! them idempotent and side-effect-free.
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//!
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//! 6. **Failure swallowing on create/login.** If your hook returns
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//! `Err`, the user is still created / logged in; only your hook's
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//! effect is delayed. Log enough detail via `tracing::error!` that a
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//! subsequent investigation can identify the user and retry
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//! manually. The `on_user_login` safety-net will retry on the next
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//! successful authentication.
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//!
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//! 7. **`on_user_deleted` is post-commit today.** The user row is
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//! already gone when the hook fires. Returning `Err` cannot roll
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//! back the delete. PR 4 will refactor `delete_user_admin` to expose
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//! a transaction handle, at which point the trait gains a `tx:
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//! &mut Transaction` parameter and `Err` will abort the delete. For
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//! now: best-effort cleanup, log failures, don't assume atomicity.
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//!
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//! 8. **Hook order is registration order.** The DI factory at
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//! [`AppServiceFactory`] determines the firing sequence. If two hooks
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//! have an ordering dependency (e.g. home-folder must exist before
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//! default-calendar can be seeded inside it), the dependent hook
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//! registers AFTER the producer. Document the convention in the DI
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//! block where order matters.
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use async_trait::async_trait;
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use crate::common::errors::DomainError;
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use crate::domain::entities::user::User;
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/// Reason a user session is ending. Hooks that don't care about the cause
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/// (e.g. cache invalidation) ignore the value; audit-style hooks branch on
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/// it to emit distinguishable events.
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum LogoutReason {
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/// User clicked logout. Single-session.
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UserInitiated,
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/// Session TTL hit. Single-session.
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SessionExpired,
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/// Admin invoked single-session revocation (e.g. "log out other
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/// devices"). Today this fires from `logout_all` and from individual
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/// admin endpoints if/when they exist.
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AdminRevoked,
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/// `user.active` flipped to `FALSE` → all sessions revoked. Fires once
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/// per logical revoke-call today (see tip #5).
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AccountDisabled,
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/// Password was changed → sibling sessions invalidated to force re-login
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/// with the new password.
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PasswordChanged,
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/// Refresh-token reuse detected by the session-family guard. Entire
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/// family revoked because the rotation was probably stolen.
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TokenReused,
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}
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/// How aggressively `on_user_deleted` cleanup should run. Today both
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/// variants are equivalent (only `AuditLifecycleHook` exists, and it logs
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/// regardless). The split exists so PR 4's `HomeFolderLifecycleHook` can
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/// trash on `AdminDelete` but hard-delete on `GdprPurge`.
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#[derive(Debug, Clone, Copy, PartialEq, Eq)]
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pub enum DeletionMode {
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/// Admin deletes a user through the UI. Resources move to trash for
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/// the retention window; recoverable.
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AdminDelete,
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/// GDPR right-to-erasure sweeper. Hard-delete everything; not
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/// recoverable. (No sweeper is wired today; the variant is reserved.)
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GdprPurge,
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}
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/// Observer for user-lifecycle events. See module-level docstring for the
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/// convention, semantics, and 8 tips for implementors.
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///
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/// `#[async_trait]` is required to make the trait `dyn`-compatible —
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/// the dispatcher holds `Arc<dyn UserLifecycleHook>`. Without it,
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/// native `async fn in trait` returns an opaque type that has no vtable
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/// representation. The same crate (`async-trait` 0.1.x) is used by other
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/// async ecosystem deps and was already transitively in Cargo.lock.
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#[async_trait]
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pub trait UserLifecycleHook: Send + Sync {
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/// Short identifier used in tracing / error logs. Example: `"home_folder"`,
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/// `"audit"`, `"authz_cache"`.
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fn name(&self) -> &'static str;
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/// Fires once after INSERT into `auth.users` succeeds, regardless of
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/// the creation path (self-register, admin-create, OIDC JIT, future
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/// magic-link bootstrap).
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///
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/// The dispatcher logs `Err` and continues — the user is still
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/// created and the next `on_user_login` will run an idempotent retry.
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async fn on_user_created(&self, user: &User) -> Result<(), DomainError>;
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/// Fires after every successful authentication, BEFORE the user's
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/// `last_login_at` is updated for this session and BEFORE the session
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/// token is returned to the caller.
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///
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/// **Idempotency is mandatory** — this fires on every login, not just
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/// the first. Hooks that provision must check whether their resource
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/// already exists before creating it. See tip #3 in the module
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/// docstring.
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///
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/// `user.last_login_at().is_none()` distinguishes the first-ever
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/// login from subsequent ones. See tip #1.
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async fn on_user_login(&self, user: &User) -> Result<(), DomainError>;
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/// Fires on session termination. `reason` lets hooks distinguish
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/// causes — audit cares; cache invalidation usually doesn't.
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///
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/// Spawned by the dispatcher — `Err` is logged but never propagates.
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/// The HTTP response shouldn't wait for downstream cache flushes.
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async fn on_user_logout(&self, user: &User, reason: LogoutReason) -> Result<(), DomainError>;
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/// Fires after a successful `DELETE FROM auth.users`. **Post-commit
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/// today** — see tip #7. The user row is already gone; cleanup must
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/// be best-effort. PR 4 will refactor to provide a transaction
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/// handle and switch to before-commit-in-tx semantics.
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async fn on_user_deleted(&self, user: &User, mode: DeletionMode) -> Result<(), DomainError>;
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}
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@@ -6,7 +6,9 @@ use crate::application::ports::auth_ports::{
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UserStoragePort,
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};
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use crate::application::ports::folder_ports::FolderUseCase;
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use crate::application::ports::user_lifecycle::{DeletionMode, LogoutReason};
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use crate::application::services::folder_service::FolderService;
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use crate::application::services::user_lifecycle_service::UserLifecycleService;
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use crate::common::config::OidcConfig;
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use crate::common::errors::{DomainError, ErrorKind};
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use crate::domain::entities::session::Session;
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@@ -72,6 +74,9 @@ pub struct AuthApplicationService {
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password_hasher: Arc<Argon2PasswordHasher>,
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token_service: Arc<JwtTokenService>,
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folder_service: Option<Arc<FolderService>>,
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/// Dispatcher for user-lifecycle events. `None` only in tests that don't
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/// exercise the lifecycle path; production DI always wires this.
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user_lifecycle: Option<Arc<UserLifecycleService>>,
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/// Path to the storage directory, used for disk-space–aware quota calculation
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storage_path: PathBuf,
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oidc: RwLock<OidcState>,
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@@ -97,6 +102,7 @@ impl AuthApplicationService {
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password_hasher,
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token_service,
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folder_service: None,
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user_lifecycle: None,
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storage_path,
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oidc: RwLock::new(OidcState {
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service: None,
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@@ -165,6 +171,14 @@ impl AuthApplicationService {
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self
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}
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/// Configures the user-lifecycle dispatcher. Wired by the DI factory
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/// after core services are up. PR 1: only AuditLifecycleHook is
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/// registered, so calls without this configured silently no-op.
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pub fn with_user_lifecycle(mut self, lifecycle: Arc<UserLifecycleService>) -> Self {
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self.user_lifecycle = Some(lifecycle);
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self
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}
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/// Configures the OIDC service
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pub fn with_oidc(self, oidc_service: Arc<OidcService>, oidc_config: OidcConfig) -> Self {
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{
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@@ -279,6 +293,13 @@ impl AuthApplicationService {
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// Save user
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let created_user = self.user_storage.create_user(user).await?;
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// Lifecycle: notify hooks (audit, future provisioning, etc.).
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// PR 3 will move the personal-folder creation below into a
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// HomeFolderLifecycleHook fired here; for now both run.
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if let Some(lc) = &self.user_lifecycle {
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lc.dispatch_created(&created_user).await;
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}
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// Create personal folder for the user
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self.create_personal_folder(&dto.username, created_user.id())
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.await;
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@@ -356,6 +377,12 @@ impl AuthApplicationService {
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let created_user = self.user_storage.create_user(user).await?;
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// Lifecycle: notify hooks. PR 3 moves home-folder creation into
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// HomeFolderLifecycleHook fired here.
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if let Some(lc) = &self.user_lifecycle {
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lc.dispatch_created(&created_user).await;
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}
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// Create personal folder for the admin
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self.create_personal_folder(&username, created_user.id())
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.await;
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@@ -401,6 +428,13 @@ impl AuthApplicationService {
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));
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}
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// Lifecycle: dispatch login BEFORE register_login() so hooks
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// observing `last_login_at().is_none()` see "first ever login"
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// correctly. See tip #1 in user_lifecycle.rs.
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if let Some(lc) = &self.user_lifecycle {
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lc.dispatch_login(&user).await;
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}
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// Update last login
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user.register_login();
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self.user_storage.update_user(user.clone()).await?;
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@@ -496,6 +530,13 @@ impl AuthApplicationService {
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self.session_storage
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.revoke_session_family(session.family_id())
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.await?;
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// Lifecycle: TokenReused logout — fired once per logical
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// revoke-family call. PR 4 may refine to per-session firing.
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if let Some(lc) = &self.user_lifecycle
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&& let Ok(user) = self.user_storage.get_user_by_id(session.user_id()).await
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{
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lc.dispatch_logout(user, LogoutReason::TokenReused);
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}
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return Err(DomainError::new(
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ErrorKind::AccessDenied,
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"Auth",
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@@ -576,6 +617,15 @@ impl AuthApplicationService {
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// Revoke session
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self.session_storage.revoke_session(session.id()).await?;
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// Lifecycle: notify hooks. One extra DB roundtrip per logout
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// (user load) is acceptable — logout is rare. Failure to load
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// the user is non-fatal: we already revoked the session.
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if let Some(lc) = &self.user_lifecycle
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&& let Ok(user) = self.user_storage.get_user_by_id(user_id).await
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{
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lc.dispatch_logout(user, LogoutReason::UserInitiated);
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}
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Ok(())
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}
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@@ -637,13 +687,19 @@ impl AuthApplicationService {
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user.update_password_hash(new_hash);
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// Save updated user
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self.user_storage.update_user(user).await?;
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self.user_storage.update_user(user.clone()).await?;
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// Optional: revoke all sessions to force re-login with new password
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self.session_storage
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.revoke_all_user_sessions(user_id)
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.await?;
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// Lifecycle: PasswordChanged logout — fired once per logical
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// revoke-all call. PR 4 may refine to per-session firing.
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if let Some(lc) = &self.user_lifecycle {
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lc.dispatch_logout(user, LogoutReason::PasswordChanged);
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}
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Ok(())
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}
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@@ -828,6 +884,12 @@ impl AuthApplicationService {
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.await?;
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}
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// Lifecycle: notify hooks. PR 3 moves home-folder creation into
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// HomeFolderLifecycleHook fired here.
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if let Some(lc) = &self.user_lifecycle {
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lc.dispatch_created(&created).await;
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}
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// Create personal folder
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self.create_personal_folder(&dto.username, created.id())
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.await;
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@@ -883,7 +945,16 @@ impl AuthApplicationService {
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// Prevent deleting yourself
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let user = self.user_storage.get_user_by_id(user_id).await?;
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tracing::info!("Admin deleting user: {} ({})", user.username(), user_id);
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self.user_storage.delete_user(user_id).await
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self.user_storage.delete_user(user_id).await?;
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// Lifecycle: notify hooks (post-commit today; PR 4 will move
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// this inside a transaction so hook failures can abort the
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// delete — see tip #7 in user_lifecycle.rs).
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if let Some(lc) = &self.user_lifecycle {
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lc.dispatch_deleted(&user, DeletionMode::AdminDelete).await;
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}
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Ok(())
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}
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/// Activate or deactivate a user (admin only)
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@@ -1175,7 +1246,12 @@ impl AuthApplicationService {
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.await
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{
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Ok(mut existing_user) => {
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// User exists — update last login and sync avatar from IdP
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// User exists — dispatch login BEFORE register_login() so
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// hooks observe `last_login_at = None` on the very first
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// login (see tip #1 in the trait docstring).
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if let Some(lc) = &self.user_lifecycle {
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lc.dispatch_login(&existing_user).await;
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}
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existing_user.register_login();
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existing_user.set_image(claims.picture.clone());
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self.user_storage.update_user(existing_user.clone()).await?;
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@@ -1273,6 +1349,14 @@ impl AuthApplicationService {
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let created_user = self.user_storage.create_user(new_user).await?;
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// Lifecycle: created (audit) + login (no register_login()
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// for a fresh OIDC user means `last_login_at` is naturally
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// None → first-login detection works).
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if let Some(lc) = &self.user_lifecycle {
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lc.dispatch_created(&created_user).await;
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lc.dispatch_login(&created_user).await;
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}
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// Create personal folder
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self.create_personal_folder(&username, created_user.id())
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.await;
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@@ -25,6 +25,7 @@ pub mod storage_settings_service;
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pub mod storage_usage_service;
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pub mod subject_group_service;
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pub mod trash_service;
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pub mod user_lifecycle_service;
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pub mod wopi_lock_service;
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pub mod wopi_token_service;
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@@ -0,0 +1,184 @@
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//! User-lifecycle dispatcher + the always-on `AuditLifecycleHook`.
|
||||
//!
|
||||
//! [`UserLifecycleService`] aggregates every registered
|
||||
//! [`UserLifecycleHook`] and fans out each lifecycle event with
|
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//! per-event failure semantics. See `user_lifecycle.rs` for the trait
|
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//! contract and tips for implementors.
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//!
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//! [`AuditLifecycleHook`] lives in this file (not under
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//! `infrastructure/services/`) because it's cross-cutting — no domain
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//! service owns "user-lifecycle audit", and the hook is small enough that
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//! a separate module would be ceremony. Every other hook lives with the
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//! service that owns its work (see `architecture/user-lifecycle.md`).
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use std::sync::Arc;
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use async_trait::async_trait;
|
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|
||||
use crate::application::ports::user_lifecycle::{DeletionMode, LogoutReason, UserLifecycleHook};
|
||||
use crate::common::errors::DomainError;
|
||||
use crate::domain::entities::user::User;
|
||||
|
||||
/// Composite dispatcher for user-lifecycle events.
|
||||
///
|
||||
/// Mirrors the [`FileLifecycleService`] shape: a `Vec<Arc<dyn ...>>` and a
|
||||
/// builder. The per-event failure semantics differ from the file-side
|
||||
/// (file events are sync fire-and-forget; user events have per-method
|
||||
/// rules — see the trait docstring).
|
||||
pub struct UserLifecycleService {
|
||||
hooks: Vec<Arc<dyn UserLifecycleHook>>,
|
||||
}
|
||||
|
||||
impl Default for UserLifecycleService {
|
||||
fn default() -> Self {
|
||||
Self::new()
|
||||
}
|
||||
}
|
||||
|
||||
impl UserLifecycleService {
|
||||
pub fn new() -> Self {
|
||||
Self { hooks: Vec::new() }
|
||||
}
|
||||
|
||||
pub fn with_hook(mut self, hook: Arc<dyn UserLifecycleHook>) -> Self {
|
||||
self.hooks.push(hook);
|
||||
self
|
||||
}
|
||||
|
||||
/// Created: log-and-continue. If a hook returns `Err`, the user is
|
||||
/// still created — the next login's `on_user_login` will retry
|
||||
/// idempotently. See tip #6 in the trait docstring.
|
||||
pub async fn dispatch_created(&self, user: &User) {
|
||||
for h in &self.hooks {
|
||||
if let Err(e) = h.on_user_created(user).await {
|
||||
tracing::error!(
|
||||
target: "user_lifecycle",
|
||||
hook = h.name(),
|
||||
user_id = %user.id(),
|
||||
error = %e,
|
||||
"on_user_created failed; will retry on next login"
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Login: log-and-continue. Same reasoning as `dispatch_created`.
|
||||
/// Must fire BEFORE `user.register_login()` so that hooks observing
|
||||
/// `last_login_at().is_none()` correctly detect the first-ever login.
|
||||
pub async fn dispatch_login(&self, user: &User) {
|
||||
for h in &self.hooks {
|
||||
if let Err(e) = h.on_user_login(user).await {
|
||||
tracing::error!(
|
||||
target: "user_lifecycle",
|
||||
hook = h.name(),
|
||||
user_id = %user.id(),
|
||||
error = %e,
|
||||
"on_user_login failed; will retry on next login"
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Logout: fire-and-forget. Spawned so the HTTP response doesn't wait
|
||||
/// for downstream cache flushes. Takes ownership of `User` because the
|
||||
/// spawn outlives the caller's borrow.
|
||||
pub fn dispatch_logout(&self, user: User, reason: LogoutReason) {
|
||||
let hooks = self.hooks.clone();
|
||||
tokio::spawn(async move {
|
||||
for h in &hooks {
|
||||
if let Err(e) = h.on_user_logout(&user, reason).await {
|
||||
tracing::error!(
|
||||
target: "user_lifecycle",
|
||||
hook = h.name(),
|
||||
reason = ?reason,
|
||||
user_id = %user.id(),
|
||||
error = %e,
|
||||
"on_user_logout failed"
|
||||
);
|
||||
}
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
/// Deleted: log-and-continue (post-commit today). PR 4 refactors
|
||||
/// `delete_user_admin` to expose a transaction handle and switches
|
||||
/// this to abort-on-first-Err to make cleanup atomic with the user
|
||||
/// DELETE. See tip #7 in the trait docstring.
|
||||
pub async fn dispatch_deleted(&self, user: &User, mode: DeletionMode) {
|
||||
for h in &self.hooks {
|
||||
if let Err(e) = h.on_user_deleted(user, mode).await {
|
||||
tracing::error!(
|
||||
target: "user_lifecycle",
|
||||
hook = h.name(),
|
||||
mode = ?mode,
|
||||
user_id = %user.id(),
|
||||
error = %e,
|
||||
"on_user_deleted failed"
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// ─────────────────────────────────────────────────────────────────────────────
|
||||
// AuditLifecycleHook
|
||||
//
|
||||
// Always-on observer. Emits one structured `tracing::info!(target: "audit",
|
||||
// ...)` line per event. The only hook registered in PR 1; subsequent PRs
|
||||
// add HomeFolderLifecycleHook, AuthzCacheLifecycleHook, etc., each living
|
||||
// next to the service it works for.
|
||||
// ─────────────────────────────────────────────────────────────────────────────
|
||||
|
||||
/// Cross-cutting audit observer for user-lifecycle events. Co-located with
|
||||
/// the dispatcher because audit has no domain owner.
|
||||
pub struct AuditLifecycleHook;
|
||||
|
||||
#[async_trait]
|
||||
impl UserLifecycleHook for AuditLifecycleHook {
|
||||
fn name(&self) -> &'static str {
|
||||
"audit"
|
||||
}
|
||||
|
||||
async fn on_user_created(&self, user: &User) -> Result<(), DomainError> {
|
||||
tracing::info!(
|
||||
target: "audit",
|
||||
event = "user.created",
|
||||
user_id = %user.id(),
|
||||
username = %user.username(),
|
||||
);
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn on_user_login(&self, user: &User) -> Result<(), DomainError> {
|
||||
tracing::info!(
|
||||
target: "audit",
|
||||
event = "user.login",
|
||||
user_id = %user.id(),
|
||||
username = %user.username(),
|
||||
first_login = user.last_login_at().is_none(),
|
||||
);
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn on_user_logout(&self, user: &User, reason: LogoutReason) -> Result<(), DomainError> {
|
||||
tracing::info!(
|
||||
target: "audit",
|
||||
event = "user.logout",
|
||||
user_id = %user.id(),
|
||||
username = %user.username(),
|
||||
reason = ?reason,
|
||||
);
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn on_user_deleted(&self, user: &User, mode: DeletionMode) -> Result<(), DomainError> {
|
||||
tracing::info!(
|
||||
target: "audit",
|
||||
event = "user.deleted",
|
||||
user_id = %user.id(),
|
||||
username = %user.username(),
|
||||
mode = ?mode,
|
||||
);
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user