feat(route): add 51read.org (#16382)

* feat(route): add 51read.org

* fix(router): only povid last page and rm `UTF-8` encoding

* refactor(route): refactor code

* fix(router): Reverse the chapter array, so new chapter at the top

lib/routes/51read/article.ts

@@ -0,0 +1,82 @@
+import { load } from 'cheerio';
+import cache from '@/utils/cache';
+import ofetch from '@/utils/ofetch';
+import type { Route, DataItem } from '@/types';
+
+export const route: Route = {
+    path: '/article/:id',
+    name: '章节',
+    url: 'm.51read.org',
+    maintainers: ['lazwa34'],
+    example: '/51read/article/152685',
+    parameters: { id: '小说 id, 可在对应小说页 URL 中找到' },
+    categories: ['reading'],
+    features: {
+        requireConfig: false,
+        requirePuppeteer: false,
+        antiCrawler: false,
+        supportBT: false,
+        supportPodcast: false,
+        supportScihub: false,
+    },
+    radar: [
+        {
+            source: ['m.51read.org/xiaoshuo/:id'],
+            target: '/article/:id',
+        },
+        {
+            source: ['51read.org/xiaoshuo/:id'],
+            target: '/article/:id',
+        },
+    ],
+    handler,
+};
+
+async function handler(ctx) {
+    const { id } = ctx.req.param();
+    const link = `https://m.51read.org/xiaoshuo/${id}`;
+    const $book = load(await ofetch(link));
+
+    const chapter = `https://m.51read.org/zhangjiemulu/${id}`;
+    const $chapter = load(await ofetch(chapter));
+
+    const pageLength = $chapter('.ml-page select')
+        .find('option')
+        .map((_, option) => option.attribs.value)
+        .toArray().length;
+
+    const item = await createItem(chapter, pageLength);
+
+    return {
+        title: $book('h1').text(),
+        description: $book('.bi-cot p').text(),
+        link,
+        item,
+        image: $book('.bi-img img').attr('src'),
+        author: $book('.bi-wt a').text(),
+        language: 'zh-cn',
+    };
+}
+
+const createItem = async (baseUrl: string, page: number) => {
+    const url = `${baseUrl}/${page}`;
+    const $latest = load(await ofetch(url));
+    const item = await Promise.all(
+        $latest('.kb-jp li>a')
+            .map((_, chapter) => buildItem(chapter.attribs.href))
+            .toArray()
+            .toReversed()
+    );
+    return item;
+};
+
+const buildItem = (url: string) =>
+    cache.tryGet(url, async () => {
+        const $ = load(await ofetch(url));
+
+        return {
+            title: $('h1').text(),
+            description: $('.kb-cot').html() || '',
+            link: url,
+        };
+    }) as Promise<DataItem>;

lib/routes/51read/namespace.ts

@@ -0,0 +1,6 @@
+import type { Namespace } from '@/types';
+
+export const namespace: Namespace = {
+    name: '51Read',
+    url: 'm.51read.org',
+};