feat: 甩甩尾巴支持关键词筛选模式 (#2649)

docs/shopping.md

@@ -124,6 +124,10 @@ pageClass: routes
 
 </Route>
 
+### 关键词
+
+<Route author="gaoliang" example="/dgtle/trade/search/ipad" path="/dgtle/trade/search/:keyword" :paramsDesc="['搜索关键词']"/>
+
 ## 淘宝众筹
 
 ### 众筹项目

lib/router.js

@@ -793,6 +793,7 @@ router.get('/parcel/hermesuk/:tracking', require('./routes/parcel/hermesuk'));
 
 // 甩甩尾巴
 router.get('/dgtle/trade/:typeId?', require('./routes/dgtle/trade'));
+router.get('/dgtle/trade/search/:keyword', require('./routes/dgtle/keyword'));
 
 // 抽屉新热榜
 router.get('/chouti/:subject?', require('./routes/chouti'));

lib/routes/dgtle/keyword.js

@@ -0,0 +1,74 @@
+const got = require('@/utils/got');
+const cheerio = require('cheerio');
+
+module.exports = async (ctx) => {
+    const keyword = ctx.params.keyword;
+
+    const host = 'http://trade.dgtle.com';
+    const baseUrl = `${host}/dgtle_module.php?mod=trade&searchsort=1&PName=${keyword}`;
+    const res = await got({
+        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 got({
+                        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,
+                    });
+                }
+
+                return Promise.resolve(item);
+            })
+            .get()
+    );
+
+    ctx.state.data = {
+        title: `甩甩尾巴 - ${keyword}`,
+        description: '纯净，安全的玩家闲置物品交易平台',
+        link: baseUrl,
+        item: resultItem,
+    };
+};