增加：甩甩尾巴 (#916)

- 实现 #758 
- 暂时先放到`购物`下面了

docs/README.md

@@ -1570,6 +1570,14 @@ IATA 国际航空运输协会机场代码, 参见[维基百科 国际航空运
 
 <route name="小米有品每日上新" author="xyqfer" example="/mi/youpin/new" path="/mi/youpin/new"/>
 
+### 甩甩尾巴
+
+<route name="甩甩尾巴" author="xyqfer" example="/dgtle/trade/111" path="/dgtle/trade/:typeId?" :paramsDesc="['分类 id，默认为全部']"/>
+
+| 全部 | 电脑 | 手机 | 平板 | 相机 | 影音 | 外设 | 生活 | 公告 |
+| ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- |
+| 0    | 111  | 109  | 110  | 113  | 114  | 115  | 112  | 116  |
+
 ## 网络小说
 
 ### 笔趣阁

router.js

@@ -661,4 +661,7 @@ router.get('/parcel/hermesuk/:tracking', require('./routes/parcel/hermesuk'));
 // 腾讯大家
 router.get('/dajia/index', require('./routes/dajia/'));
 
+// 甩甩尾巴
+router.get('/dgtle/trade/:typeId?', require('./routes/dgtle/trade'));
+
 module.exports = router;

routes/dgtle/trade.js

@@ -0,0 +1,81 @@
+const axios = require('../../utils/axios');
+const cheerio = require('cheerio');
+
+module.exports = async (ctx) => {
+    let { typeId = '' } = ctx.params;
+    if (typeId === 0) {
+        typeId = '';
+    }
+
+    const host = 'http://trade.dgtle.com';
+    const baseUrl = `${host}/dgtle_module.php?mod=trade&typeid=${typeId}`;
+    const res = await axios({
+        method: 'get',
+        url: baseUrl,
+    });
+    const $ = cheerio.load(res.data);
+    const tradeList = $('.tradebox');
+
+    const resultItem = await Promise.all(
+        tradeList
+            .map(async (_, tradeItem) => {
+                const $tradeItem = $(tradeItem);
+
+                const url = `${host}${$tradeItem.find('.tradetitle a').attr('href')}`;
+                const item = {
+                    title: $tradeItem.find('.tradetitle').attr('title'),
+                    description: '',
+                    link: url,
+                    author: $tradeItem.find('.tradeuser').text(),
+                };
+
+                const key = `dgtle-trade: ${url}`;
+                const value = await ctx.cache.get(key);
+
+                if (value) {
+                    item.description = value.description;
+                    item.pubDate = value.pubDate;
+                } else {
+                    const tradeDetail = await axios({
+                        method: 'get',
+                        url: url,
+                    });
+                    const $ = cheerio.load(tradeDetail.data);
+                    const pubDate = new Date(
+                        $('.cr_date > em')
+                            .last()
+                            .text()
+                    ).toUTCString();
+                    let description = `<img referrerpolicy="no-referrer" src="${$tradeItem
+                        .find('.cover')
+                        .attr('src')
+                        .replace(/\?.+/g, '')}" /><br>`;
+
+                    description += $tradeItem.find('.tradeprice').text();
+                    description += $('#trade_info').html();
+                    description += $('.pcb').html();
+
+                    item.description = description;
+                    item.pubDate = pubDate;
+                    ctx.cache.set(
+                        key,
+                        {
+                            pubDate,
+                            description,
+                        },
+                        24 * 60 * 60
+                    );
+                }
+
+                return Promise.resolve(item);
+            })
+            .get()
+    );
+
+    ctx.state.data = {
+        title: '甩甩尾巴',
+        description: '纯净，安全的玩家闲置物品交易平台',
+        link: baseUrl,
+        item: resultItem,
+    };
+};