添加 RSS 能力

src/layout/BaseLayout.astro

@@ -17,6 +17,12 @@ const { title = '小帕的小窝' } = Astro.props
     <meta charset="utf-8" />
     <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
     <link rel="icon" href="/favicon.ico" />
+    <link
+      rel="alternate"
+      type="application/rss+xml"
+      title="小帕的小窝 RSS 订阅"
+      href={new URL('rss.xml', Astro.site || 'https://passthem.top')}
+    />
     <meta name="viewport" content="width=device-width" />
     <meta name="generator" content={Astro.generator} />
     <title>{title}</title>

src/lib/apis/legacy/blog.ts

@@ -1,5 +1,20 @@
 import { legacyClient } from '../clients'
 
+export type ListBlogItemType = {
+  id: number
+  title: string
+
+  /** ISO8601 */
+  created_at: string
+
+  /** ISO8601 */
+  updated_at: string
+
+  featured_image: null | {
+    image_url: string
+  }
+}
+
 export const listBlogs = async ({
   page = 1,
   limit = 20,
@@ -8,13 +23,7 @@ export const listBlogs = async ({
   limit?: number
 }) => {
   const resp = await legacyClient.post('/v1/blog/list', { page, limit })
-  return resp.data.data as {
-    id: number
-    title: string
-    featured_image: null | {
-      image_url: string
-    }
-  }[]
+  return resp.data.data as ListBlogItemType[]
 }
 
 export const getBlog: (

src/pages/rss.xml.ts

@@ -0,0 +1,32 @@
+import rss from '@astrojs/rss'
+import type { APIRoute } from 'astro'
+import { listBlogs, type ListBlogItemType } from '../lib/apis/legacy/blog'
+
+export const GET = (async (context) => {
+  let blogs: ListBlogItemType[] = []
+  let pid = 0
+
+  let newBlogs = []
+
+  while (pid == 0 || newBlogs.length > 0) {
+    newBlogs = await listBlogs({
+      page: ++pid,
+      limit: 100,
+    })
+    blogs = [...blogs, ...newBlogs]
+  }
+
+  const site = context.site || 'https://passthem.top'
+
+  return rss({
+    title: '小帕的小窝',
+    description: '小帕和他朋友们的博客',
+    site,
+    items: blogs.map((blog) => ({
+      title: blog.title,
+      link: `${site}/blogs/${blog.id}`,
+      pubDate: new Date(blog.created_at),
+    })),
+    customData: `<language>zh-hans</language>`,
+  })
+}) satisfies APIRoute