improve site announcement display

This commit is contained in:
cita
2026-03-20 12:45:11 +08:00
parent 940bc1d71c
commit f0d9936bf0
6 changed files with 1119 additions and 8 deletions
+540 -4
View File
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}
},
"node_modules/saxes": {
"version": "6.0.0",
"resolved": "https://registry.npmjs.org/saxes/-/saxes-6.0.0.tgz",
"integrity": "sha512-xAg7SOnEhrm5zI3puOOKyy1OMcMlIJZYNJY7xLBwSze0UjhPLnWfj2GF2EpT0jmzaJKIWKHLsaSSajf35bcYnA==",
"dev": true,
"license": "ISC",
"dependencies": {
"xmlchars": "^2.2.0"
},
"engines": {
"node": ">=v12.22.7"
}
},
"node_modules/scheduler": {
"version": "0.23.2",
"resolved": "https://registry.npmjs.org/scheduler/-/scheduler-0.23.2.tgz",
@@ -13376,6 +13794,13 @@
"url": "https://github.com/chalk/supports-color?sponsor=1"
}
},
"node_modules/symbol-tree": {
"version": "3.2.4",
"resolved": "https://registry.npmjs.org/symbol-tree/-/symbol-tree-3.2.4.tgz",
"integrity": "sha512-9QNk5KwDF+Bvz+PyObkmSYjI5ksVUYtjW7AU22r2NKcfLJcXp96hkDWU3+XndOsUb+AQ9QhfzfCT2O+CNWT5Tw==",
"dev": true,
"license": "MIT"
},
"node_modules/tabbable": {
"version": "6.4.0",
"resolved": "https://registry.npmjs.org/tabbable/-/tabbable-6.4.0.tgz",
@@ -13639,6 +14064,26 @@
"node": ">=14.0.0"
}
},
"node_modules/tldts": {
"version": "7.0.26",
"resolved": "https://registry.npmjs.org/tldts/-/tldts-7.0.26.tgz",
"integrity": "sha512-WiGwQjr0qYdNNG8KpMKlSvpxz652lqa3Rd+/hSaDcY4Uo6SKWZq2LAF+hsAhUewTtYhXlorBKgNF3Kk8hnjGoQ==",
"dev": true,
"license": "MIT",
"dependencies": {
"tldts-core": "^7.0.26"
},
"bin": {
"tldts": "bin/cli.js"
}
},
"node_modules/tldts-core": {
"version": "7.0.26",
"resolved": "https://registry.npmjs.org/tldts-core/-/tldts-core-7.0.26.tgz",
"integrity": "sha512-5WJ2SqFsv4G2Dwi7ZFVRnz6b2H1od39QME1lc2y5Ew3eWiZMAeqOAfWpRP9jHvhUl881406QtZTODvjttJs+ew==",
"dev": true,
"license": "MIT"
},
"node_modules/tmp": {
"version": "0.2.5",
"resolved": "https://registry.npmjs.org/tmp/-/tmp-0.2.5.tgz",
@@ -13703,6 +14148,32 @@
"geo2topo": "bin/geo2topo"
}
},
"node_modules/tough-cookie": {
"version": "6.0.1",
"resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-6.0.1.tgz",
"integrity": "sha512-LktZQb3IeoUWB9lqR5EWTHgW/VTITCXg4D21M+lvybRVdylLrRMnqaIONLVb5mav8vM19m44HIcGq4qASeu2Qw==",
"dev": true,
"license": "BSD-3-Clause",
"dependencies": {
"tldts": "^7.0.5"
},
"engines": {
"node": ">=16"
}
},
"node_modules/tr46": {
"version": "6.0.0",
"resolved": "https://registry.npmjs.org/tr46/-/tr46-6.0.0.tgz",
"integrity": "sha512-bLVMLPtstlZ4iMQHpFHTR7GAGj2jxi8Dg0s2h2MafAE4uSWF98FC/3MomU51iQAMf8/qDUbKWf5GxuvvVcXEhw==",
"dev": true,
"license": "MIT",
"dependencies": {
"punycode": "^2.3.1"
},
"engines": {
"node": ">=20"
}
},
"node_modules/tree-kill": {
"version": "1.2.2",
"resolved": "https://registry.npmjs.org/tree-kill/-/tree-kill-1.2.2.tgz",
@@ -16766,6 +17237,19 @@
}
}
},
"node_modules/w3c-xmlserializer": {
"version": "5.0.0",
"resolved": "https://registry.npmjs.org/w3c-xmlserializer/-/w3c-xmlserializer-5.0.0.tgz",
"integrity": "sha512-o8qghlI8NZHU1lLPrpi2+Uq7abh4GGPpYANlalzWxyWteJOCsr/P+oPBA49TOLu5FTZO4d3F9MnWJfiMo4BkmA==",
"dev": true,
"license": "MIT",
"dependencies": {
"xml-name-validator": "^5.0.0"
},
"engines": {
"node": ">=18"
}
},
"node_modules/wait-on": {
"version": "9.0.4",
"resolved": "https://registry.npmjs.org/wait-on/-/wait-on-9.0.4.tgz",
@@ -16796,6 +17280,41 @@
"defaults": "^1.0.3"
}
},
"node_modules/webidl-conversions": {
"version": "8.0.1",
"resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-8.0.1.tgz",
"integrity": "sha512-BMhLD/Sw+GbJC21C/UgyaZX41nPt8bUTg+jWyDeg7e7YN4xOM05YPSIXceACnXVtqyEw/LMClUQMtMZ+PGGpqQ==",
"dev": true,
"license": "BSD-2-Clause",
"engines": {
"node": ">=20"
}
},
"node_modules/whatwg-mimetype": {
"version": "5.0.0",
"resolved": "https://registry.npmjs.org/whatwg-mimetype/-/whatwg-mimetype-5.0.0.tgz",
"integrity": "sha512-sXcNcHOC51uPGF0P/D4NVtrkjSU2fNsm9iog4ZvZJsL3rjoDAzXZhkm2MWt1y+PUdggKAYVoMAIYcs78wJ51Cw==",
"dev": true,
"license": "MIT",
"engines": {
"node": ">=20"
}
},
"node_modules/whatwg-url": {
"version": "16.0.1",
"resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-16.0.1.tgz",
"integrity": "sha512-1to4zXBxmXHV3IiSSEInrreIlu02vUOvrhxJJH5vcxYTBDAx51cqZiKdyTxlecdKNSjj8EcxGBxNf6Vg+945gw==",
"dev": true,
"license": "MIT",
"dependencies": {
"@exodus/bytes": "^1.11.0",
"tr46": "^6.0.0",
"webidl-conversions": "^8.0.1"
},
"engines": {
"node": "^20.19.0 || ^22.12.0 || >=24.0.0"
}
},
"node_modules/which": {
"version": "2.0.2",
"resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
@@ -16960,6 +17479,16 @@
}
}
},
"node_modules/xml-name-validator": {
"version": "5.0.0",
"resolved": "https://registry.npmjs.org/xml-name-validator/-/xml-name-validator-5.0.0.tgz",
"integrity": "sha512-EvGK8EJ3DhaHfbRlETOWAS5pO9MZITeauHKJyb8wyajUfQUenkIg2MvLDTZ4T/TgIcm3HU0TFBgWWboAZ30UHg==",
"dev": true,
"license": "Apache-2.0",
"engines": {
"node": ">=18"
}
},
"node_modules/xmlbuilder": {
"version": "15.1.1",
"resolved": "https://registry.npmjs.org/xmlbuilder/-/xmlbuilder-15.1.1.tgz",
@@ -16970,6 +17499,13 @@
"node": ">=8.0"
}
},
"node_modules/xmlchars": {
"version": "2.2.0",
"resolved": "https://registry.npmjs.org/xmlchars/-/xmlchars-2.2.0.tgz",
"integrity": "sha512-JZnDKK8B0RCDw84FNdDAIpZK+JuJw+s7Lz8nksI7SIuU3UXJJslUthsi+uWBUYOwPFwW7W7PRLRfUKpxjtjFCw==",
"dev": true,
"license": "MIT"
},
"node_modules/xtend": {
"version": "4.0.2",
"resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
+2
View File
@@ -72,6 +72,7 @@
"electron-updater": "^6.6.2",
"fastify": "^5.8.2",
"get-port": "^7.1.0",
"marked": "^17.0.4",
"minimatch": "^10.2.4",
"minimist": "^1.2.8",
"mysql2": "^3.15.3",
@@ -98,6 +99,7 @@
"drizzle-kit": "^0.28.1",
"electron": "^41.0.2",
"electron-builder": "^26.0.12",
"jsdom": "^29.0.1",
"mermaid": "^11.12.3",
"react": "^18.3.1",
"react-dom": "^18.3.1",
+101
View File
@@ -1629,6 +1629,107 @@ body {
animation: row-focus-glow 2.2s ease;
}
.announcement-rich-content {
font-size: 13px;
color: var(--color-text-secondary);
line-height: 1.7;
word-break: break-word;
}
.announcement-rich-content > :first-child {
margin-top: 0;
}
.announcement-rich-content > :last-child {
margin-bottom: 0;
}
.announcement-rich-content p,
.announcement-rich-content ul,
.announcement-rich-content ol,
.announcement-rich-content blockquote,
.announcement-rich-content pre,
.announcement-rich-content table,
.announcement-rich-content h1,
.announcement-rich-content h2,
.announcement-rich-content h3,
.announcement-rich-content h4,
.announcement-rich-content h5,
.announcement-rich-content h6 {
margin: 0 0 10px 0;
}
.announcement-rich-content h1,
.announcement-rich-content h2,
.announcement-rich-content h3,
.announcement-rich-content h4,
.announcement-rich-content h5,
.announcement-rich-content h6 {
color: var(--color-text-primary);
line-height: 1.45;
}
.announcement-rich-content ul,
.announcement-rich-content ol {
padding-left: 20px;
}
.announcement-rich-content blockquote {
padding: 10px 12px;
border-left: 3px solid var(--color-primary);
background: var(--color-surface-subtle);
border-radius: 8px;
}
.announcement-rich-content code {
font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
font-size: 12px;
padding: 1px 4px;
border-radius: 6px;
background: var(--color-surface-subtle);
color: var(--color-text-primary);
}
.announcement-rich-content pre {
overflow-x: auto;
padding: 12px 14px;
border-radius: 10px;
background: var(--color-surface-subtle);
border: 1px solid var(--color-border);
}
.announcement-rich-content pre code {
display: block;
padding: 0;
background: transparent;
}
.announcement-rich-content a {
color: var(--color-primary);
text-decoration: underline;
text-underline-offset: 2px;
}
.announcement-rich-content img {
max-width: 100%;
height: auto;
border-radius: 10px;
border: 1px solid var(--color-border);
}
.announcement-rich-content table {
width: 100%;
border-collapse: collapse;
}
.announcement-rich-content th,
.announcement-rich-content td {
border: 1px solid var(--color-border);
padding: 8px 10px;
text-align: left;
vertical-align: top;
}
@keyframes rebind-panel-glow {
0% {
box-shadow: 0 0 0 2px color-mix(in srgb, var(--color-primary) 42%, transparent);
+12 -4
View File
@@ -2,8 +2,12 @@ import { useEffect, useMemo, useRef, useState } from 'react';
import { useLocation, useNavigate } from 'react-router-dom';
import { api } from '../api.js';
import { useToast } from '../components/Toast.js';
import { formatDateTimeLocal } from './helpers/checkinLogTime.js';
import { clearFocusParams, readFocusAnnouncementId } from './helpers/navigationFocus.js';
import {
formatSiteAnnouncementSeenAt,
readClientTimeZone,
SiteAnnouncementContent,
} from './helpers/siteAnnouncementPresentation.js';
import { tr } from '../i18n.js';
type SiteAnnouncementRow = {
@@ -38,6 +42,7 @@ export default function SiteAnnouncements() {
const [highlightAnnouncementId, setHighlightAnnouncementId] = useState<number | null>(null);
const rowRefs = useRef<Map<number, HTMLDivElement>>(new Map());
const highlightTimerRef = useRef<number | null>(null);
const viewerTimeZone = useMemo(() => readClientTimeZone(), []);
const siteNameById = useMemo(() => {
const map = new Map<number, string>();
@@ -211,9 +216,12 @@ export default function SiteAnnouncements() {
<span className={`badge ${row.readAt ? 'badge-muted' : 'badge-warning'}`}>{row.readAt ? '已读' : '未读'}</span>
</div>
</div>
<div style={{ fontSize: 13, color: 'var(--color-text-secondary)', lineHeight: 1.6, whiteSpace: 'pre-wrap' }}>{row.content}</div>
<div style={{ marginTop: 8, fontSize: 12, color: 'var(--color-text-muted)' }}>
首次发现:{formatDateTimeLocal(row.firstSeenAt || row.lastSeenAt || '')}
<SiteAnnouncementContent content={row.content} />
<div
style={{ marginTop: 8, fontSize: 12, color: 'var(--color-text-muted)' }}
title={viewerTimeZone ? `本地时区:${viewerTimeZone}` : undefined}
>
首次发现:{formatSiteAnnouncementSeenAt(row.firstSeenAt || row.lastSeenAt || '', viewerTimeZone)}
</div>
</div>
))
@@ -0,0 +1,91 @@
import { afterEach, beforeEach, describe, expect, it } from 'vitest';
import { JSDOM } from 'jsdom';
import { renderToStaticMarkup } from 'react-dom/server';
import {
SiteAnnouncementContent,
formatSiteAnnouncementSeenAt,
readClientTimeZone,
} from './siteAnnouncementPresentation.js';
type BrowserGlobals = {
window?: Window & typeof globalThis;
document?: Document;
DOMParser?: typeof DOMParser;
Node?: typeof Node;
};
const browserGlobals = globalThis as typeof globalThis & BrowserGlobals;
const originalWindow = browserGlobals.window;
const originalDocument = browserGlobals.document;
const originalDOMParser = browserGlobals.DOMParser;
const originalNode = browserGlobals.Node;
describe('siteAnnouncementPresentation helpers', () => {
beforeEach(() => {
const dom = new JSDOM('<!doctype html><html><body></body></html>');
browserGlobals.window = dom.window as unknown as Window & typeof globalThis;
browserGlobals.document = dom.window.document;
browserGlobals.DOMParser = dom.window.DOMParser;
browserGlobals.Node = dom.window.Node;
});
afterEach(() => {
browserGlobals.window = originalWindow;
browserGlobals.document = originalDocument;
browserGlobals.DOMParser = originalDOMParser;
browserGlobals.Node = originalNode;
});
it('renders sanitized html notices with safe links', () => {
const markup = renderToStaticMarkup(
<SiteAnnouncementContent
content={[
'<h2>Notice</h2>',
'<p>Welcome <strong>back</strong>.</p>',
'<script>alert(1)</script>',
'<a href="javascript:alert(1)" onclick="alert(1)">bad</a>',
'<a href="https://example.com/docs" target="_blank">docs</a>',
].join('')}
/>,
);
expect(markup).toContain('<h2>Notice</h2>');
expect(markup).toContain('<strong>back</strong>');
expect(markup).not.toContain('<script');
expect(markup).not.toContain('onclick=');
expect(markup).not.toContain('javascript:alert');
expect(markup).toContain('href="https://example.com/docs"');
expect(markup).toContain('rel="noopener noreferrer"');
});
it('renders markdown notices as structured content', () => {
const markup = renderToStaticMarkup(
<SiteAnnouncementContent
content={[
'# README.md',
'',
'这是一个 [接入文档](https://example.com/setup)。',
'',
'```json',
'{',
' "model": "gpt-5.4"',
'}',
'```',
].join('\n')}
/>,
);
expect(markup).toContain('<h1>README.md</h1>');
expect(markup).toContain('href="https://example.com/setup"');
expect(markup).toContain('<pre><code class="language-json">');
expect(markup).toContain('&quot;model&quot;: &quot;gpt-5.4&quot;');
});
it('formats first-seen time in the requested local timezone', () => {
expect(formatSiteAnnouncementSeenAt('2026-03-20 04:23:27', 'Asia/Shanghai')).toBe('2026/03/20 12:23:27');
});
it('reads the browser timezone when available', () => {
expect(readClientTimeZone()).toBeTruthy();
});
});
@@ -0,0 +1,373 @@
import { marked } from 'marked';
import { formatDateTimeLocal } from './checkinLogTime.js';
const VOID_TAGS = new Set(['br', 'hr', 'img']);
const DROPPED_TAGS = new Set(['script', 'style', 'iframe', 'object', 'embed', 'link', 'meta']);
const ALLOWED_TAGS = new Set([
'a',
'b',
'blockquote',
'br',
'center',
'code',
'del',
'div',
'em',
'font',
'h1',
'h2',
'h3',
'h4',
'h5',
'h6',
'hr',
'img',
'li',
'ol',
'p',
'pre',
'span',
'strong',
'table',
'tbody',
'td',
'th',
'thead',
'tr',
'ul',
]);
function escapeHtml(value: string): string {
return value
.replace(/&/g, '&amp;')
.replace(/</g, '&lt;')
.replace(/>/g, '&gt;')
.replace(/"/g, '&quot;')
.replace(/'/g, '&#39;');
}
function normalizeLineEndings(value: string): string {
return String(value || '').replace(/\r\n?/g, '\n');
}
function isLikelyHtml(content: string): boolean {
return /<([a-z][a-z0-9-]*)(?:\s[^>]*)?>/i.test(content) || /<\/([a-z][a-z0-9-]*)>/i.test(content);
}
function isLikelyMarkdown(content: string): boolean {
return /(^|\n)(#{1,6}\s+|>\s+|[-*+]\s+|\d+\.\s+|```|~~~)/.test(content)
|| /!\[[^\]]*]\([^)]+\)|\[[^\]]+\]\([^)]+\)|`[^`]+`|\*\*[^*]+\*\*|~~[^~]+~~/.test(content);
}
function sanitizeUrl(raw: string | null | undefined, allowDataImage = false): string | null {
const value = String(raw || '').trim();
if (!value) return null;
if (value.startsWith('#') || value.startsWith('/')) return value;
if (allowDataImage && /^data:image\/[a-z0-9.+-]+;base64,/i.test(value)) return value;
if (/^https?:\/\//i.test(value)) return value;
if (/^mailto:/i.test(value)) return value;
if (/^tel:/i.test(value)) return value;
return null;
}
function extractVisibleTextFallback(html: string): string {
return normalizeLineEndings(html)
.replace(/<script[\s\S]*?<\/script>/gi, '')
.replace(/<style[\s\S]*?<\/style>/gi, '')
.replace(/<[^>]+>/g, ' ')
.replace(/[ \t]+\n/g, '\n')
.replace(/\n{3,}/g, '\n\n')
.trim();
}
function renderInlineMarkdown(text: string): string {
const tokens: string[] = [];
const pushToken = (html: string) => {
const key = `\u0000${tokens.length}\u0000`;
tokens.push(html);
return key;
};
let html = escapeHtml(text);
html = html.replace(/`([^`]+)`/g, (_, code) => pushToken(`<code>${escapeHtml(code)}</code>`));
html = html.replace(/!\[([^\]]*)\]\(([^)\s]+)(?:\s+"([^"]+)")?\)/g, (_, alt, src, title) => {
const safeSrc = sanitizeUrl(src, true);
if (!safeSrc) return escapeHtml(String(alt || ''));
const titleAttr = title ? ` title="${escapeHtml(String(title))}"` : '';
return pushToken(`<img src="${escapeHtml(safeSrc)}" alt="${escapeHtml(String(alt || ''))}"${titleAttr}>`);
});
html = html.replace(/\[([^\]]+)\]\(([^)\s]+)(?:\s+"([^"]+)")?\)/g, (_, label, href, title) => {
const safeHref = sanitizeUrl(href, false);
if (!safeHref) return escapeHtml(String(label || ''));
const titleAttr = title ? ` title="${escapeHtml(String(title))}"` : '';
return pushToken(`<a href="${escapeHtml(safeHref)}" target="_blank" rel="noopener noreferrer"${titleAttr}>${escapeHtml(String(label || ''))}</a>`);
});
html = html.replace(/\*\*([^*]+)\*\*/g, '<strong>$1</strong>');
html = html.replace(/~~([^~]+)~~/g, '<del>$1</del>');
html = html.replace(/(^|[^\*])\*([^*\n]+)\*(?=[^\*]|$)/g, '$1<em>$2</em>');
return html.replace(/\u0000(\d+)\u0000/g, (_, index) => tokens[Number(index)] || '');
}
function isMarkdownListLine(line: string, ordered: boolean): boolean {
return ordered ? /^\s*\d+\.\s+/.test(line) : /^\s*[-*+]\s+/.test(line);
}
function consumeMarkdownList(lines: string[], startIndex: number, ordered: boolean) {
const items: string[] = [];
let index = startIndex;
while (index < lines.length && isMarkdownListLine(lines[index] || '', ordered)) {
const line = lines[index] || '';
const item = ordered
? line.replace(/^\s*\d+\.\s+/, '')
: line.replace(/^\s*[-*+]\s+/, '');
items.push(`<li>${renderInlineMarkdown(item.trim())}</li>`);
index += 1;
}
const tag = ordered ? 'ol' : 'ul';
return {
html: `<${tag}>${items.join('')}</${tag}>`,
nextIndex: index,
};
}
function consumeMarkdownQuote(lines: string[], startIndex: number) {
const parts: string[] = [];
let index = startIndex;
while (index < lines.length && /^\s*>\s?/.test(lines[index] || '')) {
parts.push((lines[index] || '').replace(/^\s*>\s?/, ''));
index += 1;
}
return {
html: `<blockquote>${renderMarkdown(parts.join('\n'))}</blockquote>`,
nextIndex: index,
};
}
function consumeMarkdownFence(lines: string[], startIndex: number) {
const firstLine = String(lines[startIndex] || '');
const marker = firstLine.startsWith('~~~') ? '~~~' : '```';
const language = firstLine.slice(marker.length).trim().toLowerCase();
const codeLines: string[] = [];
let index = startIndex + 1;
while (index < lines.length && !String(lines[index] || '').startsWith(marker)) {
codeLines.push(String(lines[index] || ''));
index += 1;
}
if (index < lines.length) index += 1;
const classAttr = language && /^[a-z0-9_-]+$/i.test(language) ? ` class="language-${escapeHtml(language)}"` : '';
return {
html: `<pre><code${classAttr}>${escapeHtml(codeLines.join('\n'))}</code></pre>`,
nextIndex: index,
};
}
function consumeMarkdownParagraph(lines: string[], startIndex: number) {
const parts: string[] = [];
let index = startIndex;
while (index < lines.length) {
const line = String(lines[index] || '');
const trimmed = line.trim();
if (!trimmed) break;
if (/^#{1,6}\s+/.test(trimmed)) break;
if (/^\s*>\s?/.test(line)) break;
if (isMarkdownListLine(line, false) || isMarkdownListLine(line, true)) break;
if (trimmed.startsWith('```') || trimmed.startsWith('~~~')) break;
if (/^(-{3,}|\*{3,})$/.test(trimmed)) break;
parts.push(line);
index += 1;
}
const content = parts.map((line) => renderInlineMarkdown(line.trim())).join('<br />');
return {
html: `<p>${content}</p>`,
nextIndex: index,
};
}
function renderMarkdown(content: string): string {
const lines = normalizeLineEndings(content).split('\n');
const blocks: string[] = [];
let index = 0;
while (index < lines.length) {
const rawLine = String(lines[index] || '');
const line = rawLine.trim();
if (!line) {
index += 1;
continue;
}
if (line.startsWith('```') || line.startsWith('~~~')) {
const fenced = consumeMarkdownFence(lines, index);
blocks.push(fenced.html);
index = fenced.nextIndex;
continue;
}
const headingMatch = line.match(/^(#{1,6})\s+(.+)$/);
if (headingMatch) {
const level = headingMatch[1].length;
blocks.push(`<h${level}>${renderInlineMarkdown(headingMatch[2])}</h${level}>`);
index += 1;
continue;
}
if (/^\s*>\s?/.test(rawLine)) {
const quoted = consumeMarkdownQuote(lines, index);
blocks.push(quoted.html);
index = quoted.nextIndex;
continue;
}
if (isMarkdownListLine(rawLine, false)) {
const list = consumeMarkdownList(lines, index, false);
blocks.push(list.html);
index = list.nextIndex;
continue;
}
if (isMarkdownListLine(rawLine, true)) {
const list = consumeMarkdownList(lines, index, true);
blocks.push(list.html);
index = list.nextIndex;
continue;
}
if (/^(-{3,}|\*{3,})$/.test(line)) {
blocks.push('<hr>');
index += 1;
continue;
}
const paragraph = consumeMarkdownParagraph(lines, index);
blocks.push(paragraph.html);
index = paragraph.nextIndex;
}
return blocks.join('');
}
function sanitizeNode(node: Node): string {
if (node.nodeType === Node.TEXT_NODE) {
return escapeHtml(node.textContent || '');
}
if (node.nodeType !== Node.ELEMENT_NODE) {
return '';
}
const element = node as Element;
const tag = element.tagName.toLowerCase();
if (DROPPED_TAGS.has(tag)) {
return '';
}
const childrenHtml = Array.from(element.childNodes).map((child) => sanitizeNode(child)).join('');
if (!ALLOWED_TAGS.has(tag)) {
return childrenHtml;
}
const attrs: string[] = [];
if (tag === 'a') {
const safeHref = sanitizeUrl(element.getAttribute('href'));
if (safeHref) {
attrs.push(` href="${escapeHtml(safeHref)}"`);
attrs.push(' target="_blank"');
attrs.push(' rel="noopener noreferrer"');
}
const title = element.getAttribute('title');
if (title) {
attrs.push(` title="${escapeHtml(title)}"`);
}
} else if (tag === 'img') {
const safeSrc = sanitizeUrl(element.getAttribute('src'), true);
if (!safeSrc) return '';
attrs.push(` src="${escapeHtml(safeSrc)}"`);
const alt = element.getAttribute('alt');
if (alt) attrs.push(` alt="${escapeHtml(alt)}"`);
const title = element.getAttribute('title');
if (title) attrs.push(` title="${escapeHtml(title)}"`);
} else if (tag === 'code') {
const className = String(element.getAttribute('class') || '').trim();
if (/^language-[a-z0-9_-]+$/i.test(className)) {
attrs.push(` class="${escapeHtml(className)}"`);
}
} else if (tag === 'td' || tag === 'th') {
const colspan = Number.parseInt(String(element.getAttribute('colspan') || ''), 10);
const rowspan = Number.parseInt(String(element.getAttribute('rowspan') || ''), 10);
if (Number.isFinite(colspan) && colspan > 1) attrs.push(` colspan="${colspan}"`);
if (Number.isFinite(rowspan) && rowspan > 1) attrs.push(` rowspan="${rowspan}"`);
}
if (VOID_TAGS.has(tag)) {
return `<${tag}${attrs.join('')}>`;
}
return `<${tag}${attrs.join('')}>${childrenHtml}</${tag}>`;
}
function sanitizeAnnouncementHtml(html: string): string {
if (typeof DOMParser !== 'function' || typeof Node === 'undefined') {
return renderPlainText(extractVisibleTextFallback(html));
}
const parser = new DOMParser();
const doc = parser.parseFromString(`<body>${html}</body>`, 'text/html');
return Array.from(doc.body.childNodes).map((node) => sanitizeNode(node)).join('');
}
function renderPlainText(content: string): string {
const paragraphs = normalizeLineEndings(content)
.split(/\n{2,}/)
.map((part) => part.trim())
.filter(Boolean);
if (paragraphs.length === 0) {
return `<p>${escapeHtml(String(content || '').trim())}</p>`;
}
return paragraphs
.map((part) => `<p>${escapeHtml(part).replace(/\n/g, '<br />')}</p>`)
.join('');
}
export function readClientTimeZone(): string | undefined {
try {
return Intl.DateTimeFormat().resolvedOptions().timeZone || undefined;
} catch {
return undefined;
}
}
export function formatSiteAnnouncementSeenAt(
value: string | null | undefined,
timeZone = readClientTimeZone(),
): string {
return formatDateTimeLocal(value, 'zh-CN', timeZone);
}
export function renderSiteAnnouncementHtml(content: string): string {
const raw = String(content || '').trim();
if (!raw) return '<p>-</p>';
if (isLikelyHtml(raw)) {
return sanitizeAnnouncementHtml(raw);
}
if (isLikelyMarkdown(raw)) {
const rendered = String(marked.parse(raw, { gfm: true, breaks: true }));
return sanitizeAnnouncementHtml(rendered || renderMarkdown(raw));
}
return renderPlainText(raw);
}
export function SiteAnnouncementContent({ content }: { content: string }) {
return (
<div
className="announcement-rich-content"
dangerouslySetInnerHTML={{ __html: renderSiteAnnouncementHtml(content) }}
/>
);
}