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ersatztv/ErsatzTV.Application/Auth/ChangeLocalAdminPassword.cs
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timothyandClaude Opus 4.8 0b23d4b6b1
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feat(api): #295 PR1 — browser SPA session auth (session-OR-key gate, server-only)
Implements the ratified #295 design (PR1, server-only, backward compatible). The
/api surface now accepts a valid X-Api-Key (machine) OR an authenticated session
(browser cookie, local login or OIDC), gated by the evolved ApiAuthorizationFilter
(renamed from ApiKeyAuthorizationFilter; same fail-closed EndpointRequiresKey
predicate). Machine/key behavior is byte-identical and the SPA keeps working via
its stored key — the SPA login flow lands in PR2.

- ApiAuthorizationFilter: key-first (CSRF-immune) then session; session-authed
  mutations require the X-CSRF header (403 otherwise). Attributes renamed
  [RequiresApiKey]->[RequiresAuthentication], [SkipApiKeyAuthorization]->[SkipApiAuthorization].
- Cookie scheme ctv-session always registered (Lax/SameAsRequest/14d sliding, 401 not
  redirect for /api); OIDC handler revived when configured (profile scope, userinfo,
  auth-method claim); UseAuthentication/UseAuthorization/UseRateLimiter revived in the
  legacy MapWhen branch.
- Local admin = single credential in ConfigElement rows (username / PBKDF2 hash via
  Microsoft.Extensions.Identity.Core / rotating security stamp) — NO DB migration.
  Password change rotates the stamp; CookieSecurityStampValidator revokes stale local
  sessions. Env-seed recovery (Auth:LocalAdmin:*) via LocalAdminSeedService.
- AuthController /api/auth/{config,session,setup,login,logout,password} + browser-nav
  GET /auth/oidc/login; excluded from OpenAPI (machine-audience spec). Per-IP rate limit
  on login/setup/password; dummy-hash verify (no user enumeration).
- ForwardedHeaders now strict opt-in: X-Forwarded-* ignored unless KnownProxies/Networks
  configured (rate-limiter IP + cookie-Secure integrity). Deployment: operators behind a
  proxy must set ForwardedHeaders:KnownProxies.
- Tests: session/CSRF filter cases + 17 Application/Auth handler tests; full ErsatzTV.Tests
  green (1499). No OpenAPI/generated-artifact drift.
- Docs: api-conventions section 9 rewritten; decisions.md entry (supersedes #206 inert-OIDC note).

Refs #295 #197 #206 #58

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-12 16:14:54 +02:00

11 lines
448 B
C#

using ErsatzTV.Core;
namespace ErsatzTV.Application.Auth;
/// <summary>
/// Changes the local admin password after verifying the current one. Rotates the security stamp so all
/// other sessions are revoked. <see cref="Username" /> is the signed-in principal's name.
/// </summary>
public record ChangeLocalAdminPassword(string Username, string CurrentPassword, string NewPassword)
: IRequest<Either<BaseError, LocalAdminPrincipal>>;