From b6d656f05b608580b7366b1fc1578d0411ffa662 Mon Sep 17 00:00:00 2001
From: "tangly1024.com" <tlyong1992@hotmail.com>
Date: Wed, 15 May 2024 15:52:04 +0800
Subject: [PATCH] =?UTF-8?q?RSS=E7=94=9F=E6=88=90=E9=99=90=E5=88=B6?=
 =?UTF-8?q?=E9=A2=91=E7=8E=87?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 lib/notion/getPostBlocks.js | 24 ++++++++++++++++++------
 lib/rss.js                  | 30 ++++++++++++++++++++++++++++++
 pages/index.js              |  4 +---
 3 files changed, 49 insertions(+), 9 deletions(-)

diff --git a/lib/notion/getPostBlocks.js b/lib/notion/getPostBlocks.js
index c9652370fc2..2c53a1faa1d 100644
--- a/lib/notion/getPostBlocks.js
+++ b/lib/notion/getPostBlocks.js
@@ -1,6 +1,6 @@
 import BLOG from '@/blog.config'
-import { NotionAPI } from 'notion-client'
 import { getDataFromCache, setDataToCache } from '@/lib/cache/cache_manager'
+import { NotionAPI } from 'notion-client'
 import { deepClone, delay } from '../utils'
 
 /**
@@ -56,10 +56,18 @@ export async function getSingleBlock(id, from) {
  */
 export async function getPageWithRetry(id, from, retryAttempts = 3) {
   if (retryAttempts && retryAttempts > 0) {
-    console.log('[API-->>请求]', `from:${from}`, `id:${id}`, retryAttempts < 3 ? `剩余重试次数:${retryAttempts}` : '')
+    console.log(
+      '[API-->>请求]',
+      `from:${from}`,
+      `id:${id}`,
+      retryAttempts < 3 ? `剩余重试次数:${retryAttempts}` : ''
+    )
     try {
       const authToken = BLOG.NOTION_ACCESS_TOKEN || null
-      const api = new NotionAPI({ authToken, userTimeZone: Intl.DateTimeFormat().resolvedOptions().timeZone })
+      const api = new NotionAPI({
+        authToken,
+        userTimeZone: Intl.DateTimeFormat().resolvedOptions().timeZone
+      })
       const start = new Date().getTime()
       const pageData = await api.getPage(id)
       const end = new Date().getTime()
@@ -125,9 +133,13 @@ function filterPostBlocks(id, blockMap, slice) {
     }
 
     // 如果是文件，或嵌入式PDF，需要重新加密签名
-    if ((b?.value?.type === 'file' || b?.value?.type === 'pdf' || b?.value?.type === 'video' || b?.value?.type === 'audio') &&
-         b?.value?.properties?.source?.[0][0] &&
-         b?.value?.properties?.source?.[0][0].indexOf('amazonaws.com') > 0
+    if (
+      (b?.value?.type === 'file' ||
+        b?.value?.type === 'pdf' ||
+        b?.value?.type === 'video' ||
+        b?.value?.type === 'audio') &&
+      b?.value?.properties?.source?.[0][0] &&
+      b?.value?.properties?.source?.[0][0].indexOf('amazonaws.com') > 0
     ) {
       const oldUrl = b?.value?.properties?.source?.[0][0]
       const newUrl = `https://notion.so/signed/${encodeURIComponent(oldUrl)}?table=block&id=${b?.value?.id}`
diff --git a/lib/rss.js b/lib/rss.js
index fd183b6d58c..534597c761b 100644
--- a/lib/rss.js
+++ b/lib/rss.js
@@ -25,6 +25,10 @@ const createFeedContent = async post => {
   }
 }
 
+/**
+ * 生成RSS数据
+ * @param {*} props
+ */
 export async function generateRss(props) {
   const { NOTION_CONFIG, siteInfo, latestPosts } = props
   const TITLE = siteInfo?.title
@@ -34,6 +38,13 @@ export async function generateRss(props) {
   const LANG = NOTION_CONFIG?.LANG || BLOG.LANG
   const SUB_PATH = NOTION_CONFIG?.SUB_PATH || BLOG.SUB_PATH
   const CONTACT_EMAIL = NOTION_CONFIG?.CONTACT_EMAIL || BLOG.CONTACT_EMAIL
+
+  // 检查 feed 文件是否在30分钟内更新过
+  if (isFeedRecentlyUpdated('./public/rss/feed.xml', 60)) {
+    return
+  }
+
+  console.log('[RSS订阅] 生成/rss/feed.xml')
   const year = new Date().getFullYear()
   const feed = new Feed({
     title: TITLE,
@@ -69,3 +80,22 @@ export async function generateRss(props) {
     // RSS被高频词访问将大量消耗服务端资源，故作为静态文件
   }
 }
+
+/**
+ * 检查上次更新，如果60分钟内更新过就不操作。
+ * @param {*} filePath
+ * @param {*} intervalMinutes
+ * @returns
+ */
+function isFeedRecentlyUpdated(filePath, intervalMinutes = 60) {
+  try {
+    const stats = fs.statSync(filePath)
+    const now = new Date()
+    const lastModified = new Date(stats.mtime)
+    const timeDifference = (now - lastModified) / (1000 * 60) // 转换为分钟
+    return timeDifference < intervalMinutes
+  } catch (error) {
+    // 如果文件不存在，我们需要创建它
+    return false
+  }
+}
diff --git a/pages/index.js b/pages/index.js
index f5bade7f016..b925bc0e93b 100644
--- a/pages/index.js
+++ b/pages/index.js
@@ -61,9 +61,7 @@ export async function getStaticProps(req) {
   // 生成robotTxt
   generateRobotsTxt(props)
   // 生成Feed订阅
-  if (JSON.parse(BLOG.ENABLE_RSS)) {
-    generateRss(props)
-  }
+  generateRss(props)
 
   // 生成全文索引 - 仅在 yarn build 时执行 && process.env.npm_lifecycle_event === 'build'