お知らせのMarkdownサポート + ogpタグ生成

src/backend/router.ts

@@ -5,18 +5,23 @@ import crypto from 'crypto';
 import koaSend from 'koa-send';
 import { v4 as uuid } from 'uuid';
 import ms from 'ms';
+import striptags from 'striptags';
+import MarkdownIt from 'markdown-it';
 
 import { config } from '../config';
 import { upsertUser, getUser, updateUser, updateUsersToolsToken } from './functions/users';
 import { api } from './services/misskey';
 import { die } from './die';
 import { misskeyAppInfo } from './const';
+import { Announcements } from './models';
 
 export const router = new Router<DefaultState, Context>();
 
 const sessionHostCache: Record<string, string> = {};
 const tokenSecretCache: Record<string, string> = {};
 
+const md = new MarkdownIt();
+
 router.get('/login', async ctx => {
 	let host = ctx.query.host as string | undefined;
 	if (!host) {
@@ -135,6 +140,15 @@ router.get('/api(.*)', async (ctx, next) => {
 	next();
 });
 
+router.get('/announcements/:id', async (ctx) => {
+	const a = await Announcements.findOne(ctx.params.id);
+	const stripped = striptags(md.render(a?.body ?? '').replace(/\n/g, ' '));
+	await ctx.render('frontend', a ? {
+		t: a.title,
+		d: stripped.length > 80 ? stripped.substring(0, 80) + '…' : stripped,
+	} : null);
+});
+
 router.get('(.*)', async (ctx) => {
 	await ctx.render('frontend');
 });

src/backend/views/frontend.pug

@@ -4,8 +4,8 @@ html
 		meta(charset="UTF-8")
 		meta(name="viewport", content="width=device-width, initial-scale=1.0")
 		block meta
-		- const title = 'Misskey Tools'
-		- const desc = '✨Misskey での1日のノート数、フォロー数、フォロワー数をカウントし、深夜0時にお知らせする便利サービスです。';
+		- const title = t ? `${t} | Misskey Tools`: 'Misskey Tools';
+		- const desc = d || '✨Misskey での1日のノート数、フォロー数、フォロワー数をカウントし、深夜0時にお知らせする便利サービスです。';
 		title= title
 		meta(name='description' content=desc)
 		meta(property='og:title' content=title)