mirror of
https://github.com/juherr/kill-the-news.git
synced 2026-06-20 22:03:48 +00:00
Julien Herr
eb12f21894
Resolve each feed's most recent sender domain and serve its favicon at GET /favicon/:feedId, falling back to the project icon. Icons are fetched in the background on ingestion (direct /favicon.ico then a DuckDuckGo fallback), cached base64 in KV keyed by domain with a 1-week TTL so the fetch only fires when absent. Exposed via RSS <image> / Atom <icon>/<logo> and rendered in the admin feed list, plus a landing-page feature card. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
66 lines
2.2 KiB
TypeScript
66 lines
2.2 KiB
TypeScript
import { Context } from "hono";
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import { Env } from "../types";
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import { getFeedMetadata } from "../utils/storage";
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import { cacheFaviconForDomain, getCachedIcon } from "../utils/favicon-fetcher";
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export const FAVICON_PATH = "/favicon.svg";
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// Project favicon — reuses the header's envelope logo (brand orange #f6821f),
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// rendered as a white envelope on a rounded orange square for legibility at 16px.
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export const FAVICON_SVG = `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32" width="32" height="32">
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<rect width="32" height="32" rx="7" fill="#f6821f"/>
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<g fill="none" stroke="#ffffff" stroke-width="2.2" stroke-linecap="round" stroke-linejoin="round">
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<path d="M7 9h18c1.1 0 2 .9 2 2v10c0 1.1-.9 2-2 2H7c-1.1 0-2-.9-2-2V11c0-1.1.9-2 2-2z"/>
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<polyline points="27,11 16,18.5 5,11"/>
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</g>
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</svg>`;
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function projectFavicon(): Response {
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return new Response(FAVICON_SVG, {
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headers: {
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"Content-Type": "image/svg+xml; charset=utf-8",
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"Cache-Control": "public, max-age=86400",
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},
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});
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}
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export function handle(_c: Context<{ Bindings: Env }>): Response {
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return projectFavicon();
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}
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/**
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* Per-feed favicon. Resolves the feed's most recent sender domain and serves
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* its cached icon; falls back to the project icon for any unresolved case
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* (no domain, cache miss, or negative cache entry).
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*/
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export async function handleFeedFavicon(
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c: Context<{ Bindings: Env }>,
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): Promise<Response> {
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const env = c.env;
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const feedId = c.req.param("feedId");
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if (!feedId) return projectFavicon();
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const metadata = await getFeedMetadata(env.EMAIL_STORAGE, feedId);
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const domain = metadata?.iconDomain;
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if (!domain) return projectFavicon();
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const icon = await getCachedIcon(domain, env);
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if (icon) {
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return new Response(icon.bytes, {
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headers: {
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"Content-Type": icon.contentType,
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"Cache-Control": "public, max-age=86400",
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},
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});
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}
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// Known domain but nothing cached yet: warm the cache in the background and
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// serve the fallback for now.
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try {
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c.executionCtx.waitUntil(cacheFaviconForDomain(domain, env));
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} catch {
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// No ExecutionContext (e.g. tests) — fallback is served regardless.
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}
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return projectFavicon();
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}
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