From 0ef804c931f2bd43e95c8f91fb436bf7620828e9 Mon Sep 17 00:00:00 2001
From: pseudoyu <pseudoyu@connect.hku.hk>
Date: Sat, 28 Mar 2026 19:46:34 +0800
Subject: [PATCH] fix(route/nhentai): fetch failed issue

---
 lib/routes/nhentai/index.ts  |  3 ++-
 lib/routes/nhentai/search.ts |  3 ++-
 lib/routes/nhentai/util.tsx  | 39 +++++++++++++++++++++++++++---------
 3 files changed, 33 insertions(+), 12 deletions(-)

diff --git a/lib/routes/nhentai/index.ts b/lib/routes/nhentai/index.ts
index 043f0fe10..63f87caf5 100644
--- a/lib/routes/nhentai/index.ts
+++ b/lib/routes/nhentai/index.ts
@@ -15,6 +15,7 @@ export const route: Route = {
         mode: 'mode, `simple` to only show cover, `detail` to show all pages, `torrent` to include Magnet URI, need login, refer to [Route-specific Configurations](https://docs.rsshub.app/deploy/config#route-specific-configurations), default to `simple`',
     },
     features: {
+        requirePuppeteer: false,
         antiCrawler: true,
         supportBT: true,
         nsfw: true,
@@ -26,7 +27,7 @@ export const route: Route = {
         },
     ],
     name: 'Filter',
-    maintainers: ['MegrezZhu', 'hoilc'],
+    maintainers: ['MegrezZhu', 'hoilc', 'pseudoyu'],
     handler,
 };
 
diff --git a/lib/routes/nhentai/search.ts b/lib/routes/nhentai/search.ts
index 9d354e225..a55035673 100644
--- a/lib/routes/nhentai/search.ts
+++ b/lib/routes/nhentai/search.ts
@@ -11,6 +11,7 @@ export const route: Route = {
         mode: 'mode, `simple` to only show cover, `detail` to show all pages, `torrent` to include Magnet URI, need login, refer to [Route-specific Configurations](https://docs.rsshub.app/deploy/config#route-specific-configurations), default to `simple`',
     },
     features: {
+        requirePuppeteer: false,
         antiCrawler: true,
         supportBT: true,
         nsfw: true,
@@ -22,7 +23,7 @@ export const route: Route = {
         },
     ],
     name: 'Advanced Search',
-    maintainers: ['MegrezZhu', 'hoilc'],
+    maintainers: ['MegrezZhu', 'hoilc', 'pseudoyu'],
     handler,
 };
 
diff --git a/lib/routes/nhentai/util.tsx b/lib/routes/nhentai/util.tsx
index 3201a4158..16f84cd23 100644
--- a/lib/routes/nhentai/util.tsx
+++ b/lib/routes/nhentai/util.tsx
@@ -6,6 +6,7 @@ import ConfigNotFoundError from '@/errors/types/config-not-found';
 import got from '@/utils/got';
 import ofetch from '@/utils/ofetch';
 import { parseDate } from '@/utils/parse-date';
+import { getPuppeteerPage } from '@/utils/puppeteer';
 
 const baseUrl = 'https://nhentai.net';
 
@@ -65,16 +66,32 @@ const getCookie = async (username, password, cache) => {
     return userTokenCookie;
 };
 
-const oFetch = (url, ...options) =>
-    ofetch(url, {
-        ...options,
-        headers: {
-            host: 'nhentai.net',
-        },
-    });
+// Reason: try ofetch first for speed, fall back to puppeteer on 403 (anti-bot protection)
+const fetchPage = async (url: string): Promise<string> => {
+    try {
+        return await ofetch(url);
+    } catch (error: unknown) {
+        const status = (error as { status?: number; statusCode?: number }).status ?? (error as { status?: number; statusCode?: number }).statusCode;
+        if (status === 403) {
+            const { page, destory } = await getPuppeteerPage(url, {
+                onBeforeLoad: async (page) => {
+                    const allowedTypes = new Set(['document', 'script', 'xhr', 'fetch']);
+                    await page.setRequestInterception(true);
+                    page.on('request', (request) => {
+                        allowedTypes.has(request.resourceType()) ? request.continue() : request.abort();
+                    });
+                },
+            });
+            const content = await page.content();
+            await destory();
+            return content;
+        }
+        throw error;
+    }
+};
 
 const getSimple = async (url) => {
-    const data = await oFetch(url);
+    const data = await fetchPage(url);
     const $ = load(data);
 
     return $('.gallery a.cover')
@@ -113,7 +130,9 @@ const parseSimpleDetail = ($ele) => {
 
 const getTorrent = async (simple, cookie) => {
     const { link } = simple;
-    const response = await oFetch(link + 'download', { followRedirect: false, responseType: 'buffer', headers: { Cookie: cookie } });
+    const response = await ofetch(link + 'download', {
+        headers: { Cookie: cookie },
+    });
     return {
         ...simple,
         enclosure_url: response,
@@ -123,7 +142,7 @@ const getTorrent = async (simple, cookie) => {
 
 const getDetail = async (simple) => {
     const { link } = simple;
-    const data = await oFetch(link);
+    const data = await fetchPage(link);
     const $ = load(data);
 
     const galleryImgs = $('.gallerythumb img')