feat(api): app members CRUD endpoints
Adds /api/v1/admin/apps/{id_or_slug}/members[/{user_id}]:
- GET list members (joined with admin_users via list_for_app_enriched)
- POST grant membership — 201 with enriched DTO
409 on duplicate (promotions go through PATCH on purpose so
the UI can surface "already a member" cleanly)
422 if the target user is deactivated
422 if the target's instance_role isn't `member` — owners and
admins already have implicit authority, so an explicit row
would be dead weight
- PATCH change role — 200 with enriched DTO
404 if no existing membership (use POST to create)
- DELETE remove — 204, idempotent (matches the repo's `remove`
contract; 204 also when the row never existed)
All four gated on `Capability::AppAdmin(app_id)`. Editors and viewers
get 403 from list and never see the dashboard's Members tab.
No last-app-admin guard: owners implicitly satisfy AppAdmin via
`role_grants`, so removing the last explicit app_admin row cannot
permanently orphan an app — an owner can always re-issue grants.
Wires through picloud/src/lib.rs by splitting the Postgres app_members
repo Arc into two trait views (AppMembersRepository for CRUD, AuthzRepo
for the existing capability lookups) without re-instantiating against
the pool.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
MechaCat02
331
crates/manager-core/src/app_members_api.rs
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331
crates/manager-core/src/app_members_api.rs
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//! `/api/v1/admin/apps/{id_or_slug}/members/*` — CRUD over the
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//! `app_members` table (blueprint §11.6).
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//!
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//! Every endpoint is gated on `Capability::AppAdmin(app_id)` after
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//! resolving the app from `id_or_slug`. Editors and viewers receive
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//! 403 from list and never see the dashboard's Members tab.
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//!
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//! POST is **non-idempotent on purpose**: a duplicate `(app_id,
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//! user_id)` returns 409 rather than upsert-200, so the UI can show
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//! "already a member — promote / demote them instead" cleanly. Role
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//! changes go through PATCH.
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//!
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//! No last-app-admin guard: owners always implicitly satisfy
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//! `Capability::AppAdmin(_)` (authz::role_grants), so removing the
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//! final explicit `app_admin` membership cannot orphan an app.
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use std::sync::Arc;
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use axum::extract::{Path, State};
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use axum::http::StatusCode;
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use axum::response::{IntoResponse, Json, Response};
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use axum::routing::{get, patch};
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use axum::{Extension, Router};
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use chrono::{DateTime, Utc};
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use picloud_shared::{AdminUserId, AppId, AppRole, InstanceRole, Principal};
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use serde::{Deserialize, Serialize};
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use serde_json::json;
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use uuid::Uuid;
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use crate::admin_user_repo::{AdminUserRepository, AdminUserRepositoryError, AdminUserRow};
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use crate::app_members_repo::{
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AppMembersRepository, AppMembersRepositoryError, AppMembershipDetail, AppMembershipRow,
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};
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use crate::app_repo::AppRepository;
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use crate::authz::{require, AuthzDenied, AuthzRepo, Capability};
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use crate::repo::ScriptRepositoryError;
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#[derive(Clone)]
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pub struct AppMembersState {
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pub apps: Arc<dyn AppRepository>,
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pub users: Arc<dyn AdminUserRepository>,
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pub members: Arc<dyn AppMembersRepository>,
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pub authz: Arc<dyn AuthzRepo>,
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}
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pub fn app_members_router(state: AppMembersState) -> Router {
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Router::new()
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.route(
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"/apps/{id_or_slug}/members",
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get(list_members).post(grant_member),
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)
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.route(
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"/apps/{id_or_slug}/members/{user_id}",
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patch(patch_member).delete(remove_member),
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)
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.with_state(state)
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}
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// ----------------------------------------------------------------------------
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// DTOs
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// ----------------------------------------------------------------------------
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#[derive(Debug, Serialize)]
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pub struct AppMemberDto {
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pub user_id: AdminUserId,
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pub username: String,
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pub email: Option<String>,
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pub instance_role: InstanceRole,
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pub is_active: bool,
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pub role: AppRole,
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pub created_at: DateTime<Utc>,
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}
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impl From<AppMembershipDetail> for AppMemberDto {
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fn from(d: AppMembershipDetail) -> Self {
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Self {
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user_id: d.user_id,
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username: d.username,
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email: d.email,
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instance_role: d.instance_role,
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is_active: d.is_active,
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role: d.role,
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created_at: d.created_at,
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}
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}
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}
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/// Compose a DTO from an `AdminUserRow` (fetched for validation) and
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/// the `AppMembershipRow` returned by `upsert`. Saves a re-fetch on
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/// POST/PATCH at the cost of trusting the two inputs reference the
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/// same user_id — caller's responsibility.
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fn compose_dto(user: AdminUserRow, membership: AppMembershipRow) -> AppMemberDto {
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AppMemberDto {
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user_id: user.id,
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username: user.username,
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email: user.email,
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instance_role: user.instance_role,
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is_active: user.is_active,
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role: membership.role,
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created_at: membership.created_at,
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}
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}
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#[derive(Debug, Deserialize)]
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pub struct GrantMemberRequest {
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pub user_id: AdminUserId,
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pub role: AppRole,
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}
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#[derive(Debug, Deserialize)]
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pub struct PatchMemberRequest {
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pub role: AppRole,
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}
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// ----------------------------------------------------------------------------
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// Handlers
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// ----------------------------------------------------------------------------
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async fn list_members(
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State(s): State<AppMembersState>,
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Extension(principal): Extension<Principal>,
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Path(id_or_slug): Path<String>,
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) -> Result<Json<Vec<AppMemberDto>>, AppMembersApiError> {
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let app = resolve_app(&*s.apps, &id_or_slug).await?;
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require(s.authz.as_ref(), &principal, Capability::AppAdmin(app.id)).await?;
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let rows = s.members.list_for_app_enriched(app.id).await?;
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Ok(Json(rows.into_iter().map(Into::into).collect()))
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}
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async fn grant_member(
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State(s): State<AppMembersState>,
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Extension(principal): Extension<Principal>,
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Path(id_or_slug): Path<String>,
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Json(input): Json<GrantMemberRequest>,
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) -> Result<(StatusCode, Json<AppMemberDto>), AppMembersApiError> {
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let app = resolve_app(&*s.apps, &id_or_slug).await?;
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require(s.authz.as_ref(), &principal, Capability::AppAdmin(app.id)).await?;
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let user = s
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.users
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.get(input.user_id)
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.await?
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.ok_or(AppMembersApiError::UserNotFound(input.user_id))?;
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validate_grant_target(&user)?;
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if s.members.find(user.id, app.id).await?.is_some() {
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return Err(AppMembersApiError::AlreadyMember {
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username: user.username,
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});
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}
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let row = s.members.upsert(app.id, user.id, input.role).await?;
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Ok((StatusCode::CREATED, Json(compose_dto(user, row))))
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}
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async fn patch_member(
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State(s): State<AppMembersState>,
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Extension(principal): Extension<Principal>,
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Path((id_or_slug, user_id)): Path<(String, Uuid)>,
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Json(input): Json<PatchMemberRequest>,
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) -> Result<Json<AppMemberDto>, AppMembersApiError> {
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let app = resolve_app(&*s.apps, &id_or_slug).await?;
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require(s.authz.as_ref(), &principal, Capability::AppAdmin(app.id)).await?;
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let user_id = AdminUserId::from(user_id);
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let user = s
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.users
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.get(user_id)
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.await?
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.ok_or(AppMembersApiError::UserNotFound(user_id))?;
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if s.members.find(user_id, app.id).await?.is_none() {
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return Err(AppMembersApiError::MembershipNotFound);
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}
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let row = s.members.upsert(app.id, user_id, input.role).await?;
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Ok(Json(compose_dto(user, row)))
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}
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async fn remove_member(
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State(s): State<AppMembersState>,
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Extension(principal): Extension<Principal>,
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Path((id_or_slug, user_id)): Path<(String, Uuid)>,
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) -> Result<StatusCode, AppMembersApiError> {
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let app = resolve_app(&*s.apps, &id_or_slug).await?;
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require(s.authz.as_ref(), &principal, Capability::AppAdmin(app.id)).await?;
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s.members
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.remove(app.id, AdminUserId::from(user_id))
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.await?;
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Ok(StatusCode::NO_CONTENT)
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}
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// ----------------------------------------------------------------------------
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// Validation + helpers
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// ----------------------------------------------------------------------------
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fn validate_grant_target(user: &AdminUserRow) -> Result<(), AppMembersApiError> {
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if !user.is_active {
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return Err(AppMembersApiError::TargetInactive {
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username: user.username.clone(),
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});
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}
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if user.instance_role != InstanceRole::Member {
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return Err(AppMembersApiError::TargetNotMember {
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username: user.username.clone(),
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instance_role: user.instance_role,
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});
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}
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Ok(())
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}
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async fn resolve_app(
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apps: &dyn AppRepository,
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ident: &str,
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) -> Result<picloud_shared::App, AppMembersApiError> {
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if let Ok(uuid) = ident.parse::<Uuid>() {
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if let Some(app) = apps.get_by_id(AppId::from(uuid)).await? {
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return Ok(app);
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}
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return Err(AppMembersApiError::AppNotFound(ident.to_string()));
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}
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apps.get_by_slug_or_history(ident)
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.await?
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.map(|l| l.app)
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.ok_or_else(|| AppMembersApiError::AppNotFound(ident.to_string()))
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}
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// ----------------------------------------------------------------------------
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// Errors
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// ----------------------------------------------------------------------------
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#[derive(Debug, thiserror::Error)]
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pub enum AppMembersApiError {
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#[error("app not found: {0}")]
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AppNotFound(String),
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#[error("user not found: {0}")]
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UserNotFound(AdminUserId),
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#[error("no membership exists for this user on this app")]
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MembershipNotFound,
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#[error("{username} is already a member of this app — use PATCH to change their role")]
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AlreadyMember { username: String },
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#[error("{username} is deactivated and cannot be added as a member")]
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TargetInactive { username: String },
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#[error(
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"{username} has instance_role {instance_role:?} and already has implicit access \
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on every app — no explicit membership needed"
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)]
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TargetNotMember {
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username: String,
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instance_role: InstanceRole,
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},
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#[error("forbidden")]
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Forbidden,
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#[error("authorization repo error: {0}")]
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AuthzRepo(String),
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#[error("repository error: {0}")]
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Members(#[from] AppMembersRepositoryError),
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#[error("user repository error: {0}")]
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Users(#[from] AdminUserRepositoryError),
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#[error("repository error: {0}")]
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Apps(#[from] ScriptRepositoryError),
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}
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impl From<AuthzDenied> for AppMembersApiError {
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fn from(d: AuthzDenied) -> Self {
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match d {
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AuthzDenied::Denied => Self::Forbidden,
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AuthzDenied::Repo(e) => Self::AuthzRepo(e.to_string()),
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}
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}
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}
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impl IntoResponse for AppMembersApiError {
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fn into_response(self) -> Response {
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let (status, body) = match &self {
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Self::AppNotFound(_)
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| Self::UserNotFound(_)
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| Self::MembershipNotFound
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| Self::Apps(ScriptRepositoryError::NotFound(_)) => {
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(StatusCode::NOT_FOUND, json!({ "error": self.to_string() }))
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}
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Self::AlreadyMember { .. } | Self::Apps(ScriptRepositoryError::Conflict(_)) => {
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(StatusCode::CONFLICT, json!({ "error": self.to_string() }))
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}
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Self::TargetInactive { .. } | Self::TargetNotMember { .. } => (
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StatusCode::UNPROCESSABLE_ENTITY,
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json!({ "error": self.to_string() }),
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),
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Self::Forbidden => (StatusCode::FORBIDDEN, json!({ "error": self.to_string() })),
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Self::AuthzRepo(e) => {
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tracing::error!(error = %e, "app members authz repo error");
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(
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StatusCode::INTERNAL_SERVER_ERROR,
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json!({ "error": "internal error" }),
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)
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}
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Self::Members(e) => {
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tracing::error!(error = %e, "app members repo error");
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(
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StatusCode::INTERNAL_SERVER_ERROR,
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json!({ "error": "internal error" }),
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)
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}
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Self::Users(e) => {
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tracing::error!(error = %e, "admin users repo error");
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(
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StatusCode::INTERNAL_SERVER_ERROR,
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json!({ "error": "internal error" }),
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)
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}
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Self::Apps(ScriptRepositoryError::Db(e)) => {
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tracing::error!(error = %e, "apps repo error in app_members");
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(
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StatusCode::INTERNAL_SERVER_ERROR,
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json!({ "error": "internal error" }),
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)
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}
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};
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(status, Json(body)).into_response()
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}
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}
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