Commit Graph

244 Commits

Author SHA1 Message Date
Paul Nothaft 99e420b1b9 fix(events): typed-DELETE confirmation for bulk delete (#417)
The bulk-delete modal previously used a password input as a confirmation
gate, with an Enter-to-submit handler. Windows Hello / passkey flows
that target password fields were able to autofill and synthesise an
Enter keystroke, which submitted the form and triggered the destructive
delete without an explicit click on the red Delete button (Rekoo's
report in #417).

Replace the password gate with a GitHub-style typed-literal pattern:
the user types the literal "DELETE" (English, case-sensitive) into a
plain text input. The Delete button stays disabled until the input
matches, and there is no Enter-to-submit handler — only an explicit
click on the red button proceeds. Plain text inputs aren't subject to
password autofill or passkey ceremony so the auto-submit class of bug
is gone.

Server side, drop the bcrypt password verify on /admin/events/bulk-delete
and the related INVALID_PASSWORD response. The server's auth boundary
remains adminAuth + requirePermission('events.delete'); this matches
DELETE /admin/events/:id which has never required a re-entered password.
The client-side typed gate is the safeguard against accidental clicks.

i18n: drop password-related keys, add confirmLabel + confirmHelp across
en, de, nl, pt, ru. The literal "DELETE" stays English in all locales
to keep the gesture immune to translation drift and unambiguous.

Verified locally: typed-DELETE sanity spec covers the gate (wrong case
disabled, correct enables, Enter-on-input no-ops, click submits, events
deleted). Existing 03-bulk-archive smoke remains green.
2026-05-08 09:46:24 +02:00
Paul Nothaft 401abf7a27 fix(create-event): re-apply Branding theme on stale→fresh settings (#323-B)
CreateEventPage's branding-default effect used a boolean ref guard that
locked in whichever theme_config arrived first. React Query can hand the
observer a cached (stale) copy on initial render and then push fresh data
once the network call resolves — the boolean ref meant the form kept the
stale theme and ignored the fresh one.

Replace the ref with a stringified-hash check: re-apply when the source
actually changes (including stale → fresh) but skip when nothing has.
User edits via the customizer aren't disturbed because settings.theme_config
only refreshes on a real Branding save, not on form state.

This unblocks the local pre-push smoke gate's 07-branding-default test,
which was test.fixme'd against this exact React Query staleness.
2026-05-07 22:42:16 +02:00
Paul Nothaft 6b6191a426 fix(security): scan triage cleanup — drop dead deps, harden Docker/nginx/postMessage
Triage of an external SAST/SCA scan run on 2026-05-06. Most loud findings
were already resolved by PR #412 (the 18-CVE backport); this PR addresses
the residual real items:

* Drop unused `handlebars` from backend deps. The runtime require was
  removed in PR #367 (#367) but the package.json line stayed. handlebars
  was the source of two flagged criticals (CVE-2026-33937 RCE,
  GHSA-2w6w-674q-4c4q AST injection) plus 8 highs — all now gone.

* `npm audit fix` on backend + frontend. Bumps transitive picomatch,
  flatted, postcss, brace-expansion via lockfile, and direct dompurify,
  lodash, vite, i18next-http-backend within their existing semver ranges.
  Both audits now report 0 vulnerabilities.

* Add `event.origin === window.location.origin` check to the THEME_PREVIEW
  message listener in PreviewPage. The branding page posts from the same
  origin, so nothing legitimate is rejected; without the check, any third
  party that window.open()'d the preview could push arbitrary
  branding/theme payloads (semgrep
  insufficient-postmessage-origin-validation).

* nginx: `proxy_hide_header` for X-Frame-Options, X-Content-Type-Options,
  Referrer-Policy, Content-Security-Policy, Permissions-Policy,
  Strict-Transport-Security at server level. nginx adds these itself, but
  helmet on the backend was also emitting them — clients were seeing
  duplicates (testssl flagged "Multiple X-Frame-Options / CSP /
  Permissions-Policy / Referrer-Policy headers" on the live origin).
  Single source of truth now.

* Dockerfile hardening (checkov):
  - HEALTHCHECK on backend/Dockerfile, backend/Dockerfile.dev,
    frontend/Dockerfile.dev. Frontend production Dockerfile already had
    one.
  - USER node in frontend/Dockerfile.dev (was running as root).

* GitHub Actions docker-build.yml: explicit top-level
  `permissions: contents: read`. Per-job blocks already declare
  `packages: write` where needed; this stops future steps from
  inheriting unintended privileges (CKV2_GHA_1).

Backend npm audit: 4 vulns -> 0.
Frontend npm audit: 6 vulns -> 0.
Backend unit tests: 13 suites, 131/132 passing (1 pre-existing skip).
Frontend type-check + lint: clean.

The pre-existing integration-test failures (live DB / S3 required) and
the ThemeCustomizerEnhanced QueryClientProvider failures are unrelated
and reproduce on origin/beta without these changes.
2026-05-07 22:31:51 +02:00
Paul Nothaft 0c80abd57b fix(gallery): WCAG-safe Download button text + extract HeaderDownloadButton (#401 follow-ups)
Two follow-ups from PR #401's review:

1. Download button text was hardcoded `color: '#ffffff'`. Once admins
   start picking palettes via #400's expanded customizer, a pale accent
   (yellow, pastel blue, etc.) leaves the button unreadable — white
   text on near-white background.

   Fix: derive the foreground colour from the accent's WCAG relative
   luminance and expose it as the new `--color-accent-fg` CSS variable
   in ThemeContext.applyTheme. Light backgrounds (L >= 0.5) get black
   text; dark backgrounds get white. Same treatment applied to
   `--color-accent-dark-fg` for the filled-CTA token.

   The Download button now reads `var(--color-accent-fg, #ffffff)` so
   any future component that paints on accent gets the same treatment
   for free, and legacy deployments before the variable is set fall
   back to the previous hardcoded white.

   Threshold-based (rather than "highest contrast ratio") to preserve
   how saturated mid-tone accents have always rendered. The Picpeak
   default green (#5C8762, L≈0.20) keeps white text — same visual
   identity as before. Only genuinely pale accents flip to black,
   which is the actual scenario the review flagged.

2. The Download button JSX was duplicated three times in
   GalleryLayout.tsx (standard/banner, minimal, hero — ~15 lines
   each). Extracted into a small inline `HeaderDownloadButton`
   component above the GalleryLayout export. Three call sites now
   collapse to a 5-line component invocation each. Markup,
   accessibility, and styling live in one place — future tweaks
   only need to happen once.

## Files

- `frontend/src/utils/contrast.ts` — new helper module:
  `relativeLuminance(hex)` (WCAG 2.x sRGB luminance) and
  `getReadableForeground(hex)` (white-or-black picker).
- `frontend/src/utils/__tests__/contrast.test.ts` — 10 cases:
  fallbacks, saturated mid-tones, pale accents, near-black,
  shorthand `#RGB`, no-leading-`#`, case-insensitive, anchors
  (black/white luminance).
- `frontend/src/contexts/ThemeContext.tsx` — wire the helper into
  `applyTheme`: set `--color-accent-fg` from `accentColor` and
  `--color-accent-dark-fg` from `accentDarkColor`/`primaryColor`.
- `frontend/src/components/gallery/GalleryLayout.tsx` — extract
  `HeaderDownloadButton` component above `GalleryLayout`, replace
  three inline button blocks with the component, update its inline
  style to read `--color-accent-fg` (with the legacy `#ffffff` as
  the CSS-variable fallback).

## Verified

- `npx vitest run src/utils/__tests__/contrast.test.ts` — 10/10 pass
- `npx tsc --noEmit` — clean
- `npx eslint` clean on every touched file
- Default PicPeak green still renders white text (no regression)
- Pale accent (#fef9c3 yellow-100) now correctly renders black text
2026-05-07 11:42:25 +02:00
Paul Nothaft 876b35b4a5 Merge pull request #401 from Luca-Timo/feat/gallery-header-cleanup
feat(gallery): icon-only menu, accent Download CTA (#386)
2026-05-07 11:33:34 +02:00
Paul Nothaft 8050927607 Merge pull request #400 from Luca-Timo/feat/darkmode-color-improvement
feat(branding): 8-token CI palette + force color mode + dark-mode consistency
2026-05-06 20:26:09 +02:00
Luca de8ad5fdd5 feat(gallery): icon-only menu, accent Download CTA, logo aligned (#386)
Addresses the-luap/picpeak#386 — gallery header layout cleanup.

- Drop the redundant "Menu" text label; menu button is icon-only with
  tight padding (p-2).
- Absolute-position the menu icon at the very left of the header so it
  no longer pushes the logo right with every other action. Logo wrapper
  picks up pl-12 sm:pl-14 only when a menu button is rendered, so the
  icon and logo don't overlap. When no menu button (controlsStyle:
  classic), logo is flush with .container.
- New accent-coloured "Download" CTA placed immediately left of Logout.
  Always visible when downloads are allowed; replaces the previous
  primary-coloured "Download All" header button. Same CTA appears in
  standard, hero, and minimal headers. Intentionally NOT shown in the
  no-header variant (chromeless by design).
- Coloured via var(--color-accent) inline so the button automatically
  tracks whatever palette the admin has chosen — works on plain beta
  today (#22c55e) and auto-upgrades to the CI accent when #400 lands.

The sidebar's own Download All is untouched. Old showDownloadAll prop
stays on GalleryLayout for back-compat; GalleryView now passes
showDownloadAll={false} so only the new accent button renders in the
header.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-05-06 13:01:09 +02:00
Luca 21188f48d7 fix(theme): centralise force-mode enforcement inside ThemeContext so every gallery flips 2026-05-06 02:27:05 +02:00
Luca a76ecf8496 chore(theme): remove LBM-specific preset (private to maintainer instance) 2026-05-06 02:22:25 +02:00
Luca bdbe7b80a1 feat(events): Sync from Branding button in gallery theme customizer + clarified default inheritance 2026-05-06 01:59:02 +02:00
Luca 47b6b39f3a feat(email): expand email palette to 8 tokens + Sync from Branding button 2026-05-06 01:41:45 +02:00
Luca 565ae45ca7 fix(admin): tab underlines use accent (not accent-dark) for proper highlight color 2026-05-06 01:29:54 +02:00
Luca 578a1745b8 fix(branding): comprehensive sweep — replace remaining primary-* legacy colors with accent tokens 2026-05-06 01:16:52 +02:00
Luca fc2bce3a01 fix(branding): admin sidebar uses accent-dark, primary buttons follow CI token 2026-05-06 00:57:54 +02:00
Luca b19bb0c620 fix(branding): working tooltips, high-contrast selected states, gallery chrome follows accent 2026-05-05 17:29:15 +02:00
Luca 5b410ed9f8 fix(branding): selected-state accent colors, force-mode actually flips galleries, compact color picker layout 2026-05-05 16:48:47 +02:00
Luca 67d7d8d3fa feat(branding): inline force color mode with auto-save + clearer palette help text 2026-05-05 16:29:00 +02:00
Luca d2a10f6523 fix(cms): apply dark mode to CMS editor, public CMS, and admin modals 2026-05-05 16:07:21 +02:00
Luca 5a162fc8be feat(branding): force color mode (dark or light) site-wide 2026-05-05 16:06:38 +02:00
Luca 114aab5777 feat(theme): expand color settings to 8-token CI palette + alt button 2026-05-05 16:04:43 +02:00
filpgame f25559c0e7 feat(i18n): improve pt locale with pt-BR phrasings, remove duplicate pt-BR file 2026-05-05 10:53:29 -03:00
filpgame 375f51285b feat(i18n): add Brazilian Portuguese (pt-BR) locale 2026-05-05 10:49:35 -03:00
Paul Nothaft b106da1ede fix(auth): /auth/session must enforce session timeout symmetrically (#350 recurrence)
Third loop fix in the same /admin/login → /admin/dashboard → /admin/login
pattern as #355 and #363. Reported on v3.39.1-beta.0 — the loop returns
after a server restart or after an idle gap longer than the configured
session timeout.

## Root cause (server)

`sessionTimeoutMiddleware` is mounted on `/api/admin` (server.js:411). It
rejects with `401 SESSION_TIMEOUT` when either:
  - the in-memory `lastActivity` for the token is older than the timeout, or
  - this is the first request with this token AND the token's `iat` is
    older than the timeout (post-restart guard).

`/auth/session` lives under `/api/auth/session`, NOT under `/api/admin`,
so the middleware never runs for it. Result: an idle/old-iat admin token
returns `valid: true` from `/auth/session` while every protected
endpoint immediately rejects it with `401 SESSION_TIMEOUT`. Frontend's
401 interceptor hard-redirects to `/admin/login`, `/auth/session` says
valid again, loop closes — exact same shape as the previous two
asymmetries the symmetry pass missed.

Fix: add a non-mutating `isSessionExpired(token, decoded)` helper to
`middleware/sessionTimeout.js` that reads the same in-memory map and
applies the same lastActivity / iat-vs-timeout logic as the middleware,
without updating the map (the middleware is the only place that records
activity; `/auth/session` is read-only by design). `/auth/session`
calls the helper for `decoded.type === 'admin'` after the existing
admin-existence and password-change checks. Same try/catch fall-through
pattern as the prior fixes so a missing/broken helper doesn't fail-closed
during early bootstrap or in test stubs.

## Root cause (client race amplifying the loop)

Even with the server fix, the previous `useSessionTimeout` hook called
`AdminAuthContext.logout()` which dispatches `POST /auth/logout`
fire-and-forget AND has its own `finally { window.location.href }`,
then immediately set `window.location.href = '/admin/login?session=expired'`
on top. Two consequences:
  - The cookie wasn't reliably cleared before the new page loaded —
    if any /auth/session asymmetry slipped through, the loop replayed
    inside the same tab. New-tab and "refresh several times" "fixes"
    were just the logout request eventually completing.
  - Two redirects raced; sometimes the `?session=expired` query was
    dropped, breaking the login-page toast.

Fix: rewrite the hook to (a) await `POST /auth/logout` so the cookie
is guaranteed cleared, (b) clear `sessionStorage.admin_user` directly
instead of going through AdminAuthContext.logout (which has the
side-effect redirect we don't want), and (c) navigate exactly once
with the `?session=expired` query.

## Tests

- `__tests__/routes/authSession.symmetry.test.js` — 4 new cases under
  a `session-timeout symmetry` describe block: helper says expired →
  valid:false; helper says active → valid:true; helper not called for
  gallery tokens; helper throws → fall through to valid:true (defensive).
  Existing 9 tests still pass (mock now includes
  `isSessionExpired: jest.fn(() => Promise.resolve(false))` as the
  default).
- `__tests__/middleware/sessionTimeout.isSessionExpired.test.js` — 7
  new unit tests for the helper itself: fresh token / old-iat /
  recently-active / null-input / no-mutation / 60-min default
  boundary cases.

20 cases total, all green. Lint clean on every touched file.
2026-05-05 00:12:01 +02:00
Paul Nothaft d04bf28808 Merge pull request #390 from Luca-Timo/feat/self-hosted-fonts
feat(branding): self-hosted webfonts with filesystem scanner
2026-05-04 23:23:04 +02:00
Luca dcff451572 feat(branding): per-family generic fallback via meta.json 2026-05-04 22:27:52 +02:00
Paul Nothaft 1f1a856083 Merge pull request #385 from Luca-Timo/beta
feat(gallery): decouple header style from layout, add banner option
2026-05-04 21:16:13 +02:00
Paul Nothaft 647aea21ae Merge pull request #389 from the-luap/feat/events-bulk-delete
feat(events): bulk delete with password confirmation (#384)
2026-05-04 21:00:06 +02:00
Paul Nothaft 48d538f94f feat(events): bulk delete with password confirmation (#384)
Adds the bulk-delete half of #384 — admins can select multiple
events from the list and delete them in one batch, gated by
re-entering their password.

## Why password confirmation

Bulk delete is destructive and irreversible (cascades across 5 DB
tables and 3 filesystem paths per event). Re-entering the password
matches the pattern already used by /auth/admin/change-password and
makes accidental clicks much harder than a plain "type DELETE to
confirm" — the muscle-memory required to type your real password is
a stronger gate than typing a literal word.

## Changes

### Backend (adminEvents.js)

- Extracted the per-event cascade-delete logic into a module-private
  `deleteEventCascade(eventId, adminContext)` helper. The DELETE /:id
  route now calls it instead of inlining 60 lines of cascade — same
  behaviour, no drift between the per-event and bulk paths.
- New `POST /admin/events/bulk-delete`. Body: `{ eventIds, password }`.
  Permission: `events.delete`.
  - Validates `eventIds` array length (1–100) and that each id is an
    integer. The 100-cap keeps request time bounded; the per-event
    cascade touches DB + filesystem so 1000 events at once would risk
    timing out the request.
  - Verifies `password` against the calling admin's bcrypt hash via
    `bcrypt.compare()` (same as /auth/admin/change-password). Wrong
    password → 401 `{ error, code: 'INVALID_PASSWORD' }` and no
    events are touched.
  - Loops via `deleteEventCascade`, returns
    `{ results: { successful, failed } }` with the same shape as
    /bulk-archive so the frontend can show partial-failure feedback.
  - Logs `bulk_delete_completed` activity with totals.

### Frontend

- `events.service.ts`: `bulkDeleteEvents(eventIds, password)`.
- New `BulkDeleteModal.tsx`. Red/destructive variant of the
  bulk-archive modal:
  - Lists the events to be deleted (so the admin can verify).
  - Password input with show/hide toggle, autofocus, Enter-to-submit.
  - Inline `passwordError` prop surfaces the 401 INVALID_PASSWORD
    response without losing the modal state — admin can retry
    without re-typing the event list.
  - "Processing" state replaces the form with a spinner + "Deleting
    N events. This may take a few minutes — please don't close this
    window." (i18n) so admins know not to abandon the page during
    a slow operation.
- `EventsListPage.tsx`: "Delete Selected" button next to "Archive
  Selected" in the bulk-actions bar (red-styled to signal danger),
  bulkDeleteMutation that maps the 401 to the modal's inline error
  and any other failure to a generic toast.

### i18n

12 new keys under `events.bulkDelete.*` in all 5 locales
(en/de/nl/pt/ru): title, warning, password label/placeholder/help,
submit, processing, incorrectPassword, successAll, successPartial,
errorGeneric, plus `events.deleteSelected` for the button. Hand-
written for de; nl/pt/ru should get a native-speaker pass at some
point but read naturally.

### Verified

- `npx tsc --noEmit` clean
- `npx eslint` clean on every touched file (4 pre-existing errors in
  adminEvents.js for unused vars unrelated to this PR)
- All 5 locale JSON files parse cleanly
- `node -e "require('./src/routes/adminEvents')"` loads the module

Closes the bulk-delete half of #384. The Photos-column half lands
separately in PR #387.
2026-05-04 20:56:00 +02:00
Paul Nothaft ffb4318a1f feat(events): add Photos column to admin events list (#384)
The admin events table didn't surface how many photos each event
contained — admins had to click into the event to find out. The
backend already computes `photo_count` for every row in the
GET /admin/events list response (adminEvents.js:794-796), so this
is a frontend-only display change.

- Insert a "Photos" column between Date and Status — groups with
  the "what's in this event" info.
- Right-aligned, tabular-nums for clean numeric alignment in the
  column.
- Reuses the existing `events.photos` i18n key already shipped in
  all 5 locales for the EventDetailsPage tab list ("Fotos" / etc.) —
  no new translations needed.
- Updates the empty-state colSpan from 7 to 8.

Closes the column-add half of #384. The bulk-delete request from
the same issue lands separately.
2026-05-04 20:47:13 +02:00
Luca f410207b2d revert(branding): per-option font preview (defer to follow-up) 2026-05-04 20:39:00 +02:00
Luca b4f9b65f1d feat(branding): preview each font in its own face in the picker dropdown 2026-05-04 19:44:20 +02:00
Luca bac51fe69a feat(branding): self-hosted webfonts with filesystem scanner 2026-05-04 19:15:47 +02:00
Luca 894e151255 i18n(gallery): nl/ru wording polish for standard header style 2026-05-04 16:58:26 +02:00
Luca 91ad6bba99 style(theme-customizer): match header-style picker grid to layout picker (3 cols) 2026-05-04 15:48:12 +02:00
Luca 045e9ea486 fix(gallery): default controls to inline for every layout 2026-05-04 15:46:41 +02:00
Luca d823dcda26 Merge branch 'beta' into refactor/external-media-types 2026-05-04 14:40:01 +02:00
Luca 0bd61be5a6 i18n(gallery): translate banner header strings (nl/pt/ru) 2026-05-04 14:34:55 +02:00
Luca aff29c91bb feat(gallery): decouple header style from layout, add banner option 2026-05-04 14:34:42 +02:00
Paul Nothaft 3fe8e61bd1 Merge pull request #379 from Luca-Timo/feat/admin-email-picker
feat(events): prefill admin email + admin picker on event creation
2026-05-04 13:32:53 +02:00
Luca ffbb0e659f refactor(events): type external-media list response, drop any casts 2026-05-04 12:28:46 +02:00
Paul Nothaft 98c6f6cf06 chore(events): type FolderTreeNode entries with ExternalEntry
Follow-up to PR #378 — drops the (e: any) / (d: any) casts in the
external-folder-tree picker. ExternalEntry is already exported from
externalMedia.service.ts; the call site just wasn't using it.

- Import the type alongside the service.
- Annotate the dirs filter callback so `e.type` is the union 'dir' |
  'file' instead of any.
- Drop the (d: any) annotation from the map — TypeScript infers
  ExternalEntry from the typed `dirs` array.

No behaviour change, no test impact. `npx tsc --noEmit` clean,
`npx eslint` clean.
2026-05-04 12:24:21 +02:00
Luca 40d23e24cb i18n(events): translate admin email picker strings (nl/pt/ru) 2026-05-04 12:10:23 +02:00
Luca ee56b6762f feat(events): prefill admin email + admin picker on event creation 2026-05-04 12:10:23 +02:00
Luca bd42ee1ce0 fix(events): match scrollbar to theme in external folder tree picker 2026-05-04 11:30:46 +02:00
Luca 954ab00495 i18n(events): translate external folder picker strings (nl/pt/ru) 2026-05-04 11:02:00 +02:00
Luca f927b09c70 feat(events): tree view for external media folder picker 2026-05-04 11:01:49 +02:00
Paul Nothaft bce5c1f725 fix(cms): nl/pt/ru i18n + gate external_url in public response
Two follow-ups to PR #372 (external-URL toggle for imprint /
privacy CMS pages):

1. **i18n.** PR #372 added 6 new `cms.*` keys to the en + de
   locales but the project ships 5 locales total. Adds the missing
   nl / pt / ru translations so the admin CMS page renders in the
   active language for those users instead of falling back to
   English literals next to the German/Dutch/Portuguese/Russian
   surrounding strings.

2. **API shape.** `publicCMS.js` returned `external_url`
   unconditionally — even when `use_external_url` is false the URL
   value was still emitted in the public response. The frontend
   correctly gated on both flags so it worked, but the API surface
   was leaking a value the admin had explicitly disabled. The
   value still lives in the DB (so the toggle can be flipped back
   on without losing it), but the public endpoint now returns
   `null` whenever the toggle is off.

   Note: kept the existing `logo_url` shape unchanged. Its semantics
   are different — null means "fall back to global branding" and
   consumers rely on always having the field, so emitting it
   unconditionally is intentional there.

No frontend change needed: both `GalleryLayout` and `LegalPage`
already gate on `use_external_url && external_url`, so the
short-circuit handles `external_url: null` correctly.
2026-05-04 00:14:07 +02:00
Paul Nothaft b2c8161a43 Merge pull request #372 from Luca-Timo/beta
feat(cms): add external URL toggle for imprint and privacy pages
2026-05-04 00:10:44 +02:00
Paul Nothaft c270bcfc9f i18n(events): translate PasswordResetModal across 5 locales
The rebuilt modal in this PR shipped with hard-coded English strings.
That made the reset flow untranslated for German/Dutch/Portuguese/
Russian customers — toasts, confirm dialog, success screen all
fell back to English regardless of the active locale.

- New `events.passwordReset.*` namespace in en/de/nl/pt/ru with 22
  keys covering both modal screens, the warning banner, validation
  errors, and the toast messages.
- Modal uses `useTranslation()` for every previously hard-coded
  string. Reuses `common.cancel`, `events.copy`, `events.copied`
  where they already exist across all locales.
- The {{eventName}} interpolation uses i18next's standard variable
  syntax so the description line reads naturally in each language.

No behaviour change. TypeScript clean (`npx tsc --noEmit`), ESLint
clean. JSON validity checked for all 5 locale files.
2026-05-03 23:16:21 +02:00
Luca c5bba505ac feat(cms): redirect legal links to external URL when configured 2026-05-03 23:06:16 +02:00