yiekheng b993de43bc Reader: fix resume bug, add loading skeleton, scraping protection, bounded image cache
- Resume scroll position only when arriving via 继续阅读 (?resume=1).
  Plain chapter-list / drawer clicks now actively scroll to top on mount.
- Progress format extended to {chapter, page, ratio} for within-page
  precision; legacy bare-number and {chapter, page} still read correctly.
- Tappable skeleton logo (sunflower outline, spins) while a page loads;
  tap force-fetches a fresh signed URL.
- Viewport-priority image loading: second IntersectionObserver at margin 0
  marks truly-visible pages, drives <img fetchpriority="high"> and fires
  immediate single-page fetches that cut the batch queue.
- Bounded image cache: unmount previous chapter's <img> elements when
  currentPage > 5 into the new chapter; placeholders stay for layout.
  One AbortController per live chapter; unmount aborts in-flight batches.
- Hashed chapter IDs on the wire via hashids; DB PKs unchanged.
- Origin/Referer allowlist + rate limiting on all /api/* routes via a
  withGuards(opts, handler) wrapper (eliminates 6-line boilerplate x5).
- robots.txt allows Googlebot/Bingbot/Slurp/DuckDuckBot/Baiduspider/
  YandexBot only; disallows /api/ for all UAs.
- Extract pure helpers for future TDD: lib/scroll-ratio.ts (calcScrollRatio,
  scrollOffsetFromRatio), lib/progress.ts (parseProgress + injectable
  StorageLike), lib/rate-limit.ts (optional { now, store, ipOf } deps),
  lib/api-guards.ts.
- New env keys: HASHIDS_SALT, ALLOWED_ORIGINS (wired into docker-compose).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-15 21:48:15 +08:00

41 lines
1.4 KiB
TypeScript

"use client";
type Props = {
onTap?: () => void;
};
export function LoadingLogo({ onTap }: Props) {
return (
<button
type="button"
aria-label="Reload page"
onClick={(e) => {
e.stopPropagation();
onTap?.();
}}
className="absolute inset-0 m-auto w-16 h-16 flex items-center justify-center cursor-pointer active:scale-95 transition-transform"
>
<svg
viewBox="0 0 100 100"
xmlns="http://www.w3.org/2000/svg"
className="w-full h-full animate-[spin_2s_linear_infinite] text-accent/40"
fill="none"
stroke="currentColor"
strokeWidth={3}
>
<g transform="translate(50,50)">
<ellipse cx="0" cy="-22" rx="6.5" ry="13" />
<ellipse cx="0" cy="-22" rx="6.5" ry="13" transform="rotate(45)" />
<ellipse cx="0" cy="-22" rx="6.5" ry="13" transform="rotate(90)" />
<ellipse cx="0" cy="-22" rx="6.5" ry="13" transform="rotate(135)" />
<ellipse cx="0" cy="-22" rx="6.5" ry="13" transform="rotate(180)" />
<ellipse cx="0" cy="-22" rx="6.5" ry="13" transform="rotate(225)" />
<ellipse cx="0" cy="-22" rx="6.5" ry="13" transform="rotate(270)" />
<ellipse cx="0" cy="-22" rx="6.5" ry="13" transform="rotate(315)" />
<circle cx="0" cy="0" r="8" />
</g>
</svg>
</button>
);
}