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v4: what the server and the client both state is declared once — several rules were written out in two or more files, some already drifting apart. A link's site name (its host without www.) was computed in five places, now shared/url.ts's siteHost; dumpFileVersion, which the frontend and the server had to keep equal by hand, is one function in shared/dump.ts; the Markdown flattening of the chat's reply previews and the digest's quotes is shared/markdown.ts's markdownToPlainText, so the digest also keeps an image's alt text; an attachment's URL and how to find one in a text are shared/attachment.ts, which the editor, Markdown and attachment-service read, its id pattern the new UUID_RE that the file and thumbnail routes check ids with. On the server, the Bandcamp, YouTube playlist and link preview caches use one TtlCache (api/lib/ttl-cache.ts) instead of three copies of the same expiry and eviction; the link previews' theme-color and the emails' theme tokens read colours with one parser (api/lib/css-color.ts), and a transparent theme-color now gives no tint; the WebSocket route sends through ws-service's send, the welcome included, so it is type-checked; fetch.ts strips an IPv6 literal's brackets with public-address's bareHostname; and a category's slug is checked by the same validateSlug as a dump's, with its own length. The migrations keep their frozen copies, as they document. 272 backend tests and 677 frontend tests pass, and deno check, tsc, eslint and doc:lint are clean.

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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
khannurien
2026-10-09 13:10:07 +00:00
parent 134d1a0b97
commit c3594e4c27
39 changed files with 445 additions and 360 deletions
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67
api/remote/html.ts
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@@ -7,6 +7,8 @@
* @module
*/
import { hexOf, parseCssColor } from "../lib/css-color.ts";
/**
* Decodes the five XML entities and numeric ones in `str`. `&amp;` goes first,
* so `&amp;quot;` decodes twice; `bandcamp-tralbum.ts`, which decodes JSON,
@@ -118,74 +120,15 @@ export function extractMaskIconColor(html: string): string | undefined {
return undefined;
}
/**
* The named colors sites actually put in `theme-color`; the rest of CSS's names
* aren't worth carrying.
*/
const NAMED_COLORS: Record<string, string> = {
black: "#000000",
white: "#ffffff",
red: "#ff0000",
green: "#008000",
blue: "#0000ff",
yellow: "#ffff00",
orange: "#ffa500",
purple: "#800080",
gray: "#808080",
grey: "#808080",
silver: "#c0c0c0",
maroon: "#800000",
navy: "#000080",
teal: "#008080",
olive: "#808000",
lime: "#00ff00",
aqua: "#00ffff",
cyan: "#00ffff",
fuchsia: "#ff00ff",
magenta: "#ff00ff",
};
function clampByte(n: number): number {
return Math.max(0, Math.min(255, Math.round(n)));
}
/**
* Returns `raw` as a lowercase `#rrggbb`, from a hex, `rgb()`, `rgba()` or
* common named color; undefined for any other form. The generic provider
* stores it as the preview's `accentColor`, a tint over the app's own surface,
* so alpha is dropped.
* so alpha is dropped, and a fully transparent one is no color at all.
*/
export function normalizeCssColor(raw: string | undefined): string | undefined {
if (!raw) return undefined;
const value = raw.trim().toLowerCase();
const named = NAMED_COLORS[value];
if (named) return named;
const hex = /^#([0-9a-f]{3,8})$/.exec(value)?.[1];
if (hex) {
if (hex.length === 3 || hex.length === 4) {
const [r, g, b] = [...hex.slice(0, 3)];
return `#${r}${r}${g}${g}${b}${b}`;
}
if (hex.length === 6 || hex.length === 8) return `#${hex.slice(0, 6)}`;
return undefined;
}
const rgb = /^rgba?\(([^)]+)\)$/.exec(value)?.[1];
if (rgb) {
const parts = rgb.split(/[\s,/]+/).filter(Boolean).slice(0, 3);
if (parts.length !== 3) return undefined;
const bytes = parts.map((p) => {
const n = parseFloat(p);
if (!Number.isFinite(n)) return NaN;
return clampByte(p.endsWith("%") ? (n / 100) * 255 : n);
});
if (bytes.some(Number.isNaN)) return undefined;
return `#${bytes.map((b) => b.toString(16).padStart(2, "0")).join("")}`;
}
return undefined;
const color = raw ? parseCssColor(raw) : undefined;
return color && color.a > 0 ? hexOf(color) : undefined;
}
/**