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import fs from 'fs'
import { Feed } from 'feed'
import BLOG from '@/blog.config'
import ReactDOMServer from 'react-dom/server'
import { getPostBlocks } from './notion'
import NotionPage from '@/components/NotionPage'
/**
* 生成RSS内容
* @param {*} post
* @returns
*/
const createFeedContent = async post => {
// 加密的文章内容只返回摘要
if (post.password && post.password !== '') {
return post.summary
}
const blockMap = await getPostBlocks(post.id, 'rss-content')
if (blockMap) {
post.blockMap = blockMap
const content = ReactDOMServer.renderToString(<NotionPage post={post} />)
const regexExp =
/<div class="notion-collection-row"><div class="notion-collection-row-body"><div class="notion-collection-row-property"><div class="notion-collection-column-title"><svg.*?class="notion-collection-column-title-icon">.*?<\/svg><div class="notion-collection-column-title-body">.*?<\/div><\/div><div class="notion-collection-row-value">.*?<\/div><\/div><\/div><\/div>/g
return content.replace(regexExp, '')
}
}
export async function generateRss(posts) {
const year = new Date().getFullYear()
const feed = new Feed({
title: BLOG.TITLE,
description: BLOG.DESCRIPTION,
link: `${BLOG.LINK}/${BLOG.SUB_PATH}`,
language: BLOG.LANG,
favicon: `${BLOG.LINK}/favicon.png`,
copyright: `All rights reserved ${year}, ${BLOG.AUTHOR}`,
author: {
name: BLOG.AUTHOR,
email: BLOG.CONTACT_EMAIL,
link: BLOG.LINK
}
})
for (const post of posts) {
feed.addItem({
title: post.title,
link: `${BLOG.LINK}/${post.slug}`,
description: post.summary,
content: await createFeedContent(post),
date: new Date(post?.publishDay)
})
}
try {
fs.mkdirSync('./public/rss', { recursive: true })
fs.writeFileSync('./public/rss/feed.xml', feed.rss2())
fs.writeFileSync('./public/rss/atom.xml', feed.atom1())
fs.writeFileSync('./public/rss/feed.json', feed.json1())
} catch (error) {
// 在vercel运行环境是只读的，这里会报错；
// 但在vercel编译阶段、或VPS等其他平台这行代码会成功执行
// RSS被高频词访问将大量消耗服务端资源，故作为静态文件
}
}
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