新增页码选择

src/modules/routes.ts

@@ -8,6 +8,7 @@ import config from '../config';
 import { DomainNotFoundError, statusToHTML, UserNotFoundError, WeiboCookieInvalidError } from './weibo/weibo';
 import { ThrottledError } from './throttler';
 import { logger } from './logger';
+import { PageInvalidError, parsePageSpec } from './page';
 
 export class UidInvalidError extends Error {
   constructor(uid: string) {
@@ -32,10 +33,12 @@ export const registerRoutes = (
         throw new UidInvalidError(uid);
       }
 
+      const pageSpec = parsePageSpec(ctx.query.page);
+
       // get data
       let cacheMiss = false;
       const xmlData = await ctx.cache.memo(async () => {
-        const weiboData = await ctx.weibo.fetchUserLatestWeibo(uid);
+        const weiboData = await ctx.weibo.fetchUserLatestWeibo(uid, pageSpec.pages);
         if (weiboData) {
           // basic info
           const feed = new NodeRSS({
@@ -59,7 +62,7 @@ export const registerRoutes = (
           cacheMiss = true;
           return feed.xml();
         }
-      }, `xml-${uid}`, config.cacheTTL.rssXml);
+      }, `xml-${uid}-page-${pageSpec.key}`, config.cacheTTL.rssXml);
 
       // send data
       ctx.set('Content-Type', 'text/xml');
@@ -78,6 +81,11 @@ export const registerRoutes = (
         ctx.body = `找不到用户，可能用户仅登录可见，不支持订阅。可以通过打开 https://m.weibo.cn/u/:uid 验证（<a href="https://m.weibo.cn/u/${uid}" target="_blank">uid: ${uid}</a>）`;
         return;
       }
+      if (error instanceof PageInvalidError) {
+        ctx.status = 400;
+        ctx.body = `page 参数格式有误。支持单页如 7，范围如 1-10，或列表如 1,3,5。page: ${error.message.replace(/^page:\s*/, '')}`;
+        return;
+      }
       if (error instanceof WeiboCookieInvalidError) {
         ctx.status = 401;
         ctx.body = `微博 Cookie 可能已过期或失效，请更新 WEIBO_COOKIE 后重试。uid: ${uid}`;