feat: add查看LeetCode打卡的功能 (#2219)

docs/programming.md

@@ -115,6 +115,10 @@ GitHub 官方也提供了一些 RSS:
 
 <Route author="LogicJake" example="/leetcode/articles" path="/leetcode/articles"/>
 
+### 打卡
+
+<Route author="NathanDai" example="/leetcode/us/nathandai" path="/leetcode/:country:user" :paramsDesc="['国家 country, 中国(cn)和美国(us)', '用户名 user, 可在LeetCode用户主页的 URL 中找到']"/>
+
 ## LinkedKeeper
 
 ### 博文

lib/router.js

@@ -1062,6 +1062,7 @@ router.get('/aisixiang/ranking/:type?/:range?', require('./routes/aisixiang/rank
 
 // LeetCode
 router.get('/leetcode/articles', require('./routes/leetcode/articles'));
+router.get('/leetcode/submission/:country/:user', require('./routes/leetcode/submission'));
 
 // segmentfault
 router.get('/segmentfault/channel/:name', require('./routes/segmentfault/channel'));

lib/routes/leetcode/submission.js

@@ -0,0 +1,66 @@
+const axios = require('@/utils/axios');
+const cheerio = require('cheerio');
+const util = require('./utils');
+
+module.exports = async (ctx) => {
+    const country = ctx.params.country;
+    const user = ctx.params.user;
+    let url, state, description;
+    if (country === 'cn') {
+        url = 'https://leetcode-cn.com/';
+    } else {
+        url = 'https://leetcode.com/';
+    }
+    const response = await axios({
+        method: 'get',
+        url: url + `${user}`,
+        headers: {
+            Referer: url,
+        },
+    });
+    const data = response.data;
+    const $ = cheerio.load(data);
+    const username = $('div.panel-body')
+        .find('h4')
+        .text();
+    const img = $('div.panel-body')
+        .find('img')
+        .attr('src'); // 用户的头像
+    const src = `<img referrerpolicy="no-referrer" src="${img}">`;
+    const solvedQuestion = $('ul.list-group')
+        .eq(2)
+        .children()
+        .eq(0)
+        .find('span')
+        .text(); // 解决的题目
+    const acceptedSubmission = $('ul.list-group')
+        .eq(2)
+        .children()
+        .eq(1)
+        .find('span')
+        .text(); // 通过的提交
+    const acceptanceRate = $('ul.list-group')
+        .eq(2)
+        .children()
+        .eq(2)
+        .find('span')
+        .text(); // 通过率
+    if (country === 'cn') {
+        state = ' 的刷题动态';
+        description = '解决的题目： ' + solvedQuestion + '<br>通过的提交： ' + acceptedSubmission + '<br>通过率： ' + acceptanceRate + '<br>' + src;
+    } else {
+        state = ' Most recent submissions';
+        description = 'Solved Question: ' + solvedQuestion + '<br>Accepted Submission: ' + acceptedSubmission + '<br>Acceptance Rate: ' + acceptanceRate + '<br>' + src;
+    }
+
+    const list = $('ul.list-group')
+        .eq(-1)
+        .children()
+        .get();
+    const result = await util.ProcessFeed(list, country);
+    ctx.state.data = {
+        title: username + state,
+        description: description,
+        item: result,
+    };
+};

lib/routes/leetcode/utils.js

@@ -0,0 +1,82 @@
+const cheerio = require('cheerio');
+
+const ProcessFeed = async (list, country) => {
+    let host;
+    if (country === 'us') {
+        host = 'https://leetcode.com';
+    } else {
+        host = 'https://leetcode-cn.com';
+    }
+    return await Promise.all(
+        list.map(async (item) => {
+            const $ = cheerio.load(item);
+            const $title = $('b');
+            const description =
+                $('span')
+                    .eq(0)
+                    .text() +
+                $('span')
+                    .eq(1)
+                    .text();
+            // 还原相对链接为绝对链接
+
+            const pubDate = $('span')
+                .eq(2)
+                .text();
+            const bb = $('a[href]').get()[0];
+            const itemUrl = host + $(bb).attr('href');
+            let n = 0,
+                h = 0;
+            let n1, n2, n3, n4, n5, n6;
+            if (country === 'us') {
+                n1 = pubDate.search(/year/);
+                n2 = pubDate.search(/month/);
+                n3 = pubDate.search(/week/);
+                n4 = pubDate.search(/day/);
+                n5 = pubDate.search(/hour/);
+                n6 = pubDate.search(/minute/);
+            } else {
+                n1 = pubDate.search(/年/);
+                n2 = pubDate.search(/月/);
+                n3 = pubDate.search(/周/);
+                n4 = pubDate.search(/日/);
+                n5 = pubDate.search(/小时/);
+                n6 = pubDate.search(/分钟/);
+            }
+
+            if (n1 !== -1) {
+                n = n + parseInt(pubDate[n1 - 2]) * 365;
+            }
+            if (n2 !== -1) {
+                n = n + parseInt(pubDate[n2 - 2]) * 30;
+            }
+            if (n3 !== -1) {
+                n = n + parseInt(pubDate[n3 - 2]) * 7;
+            }
+            if (n4 !== -1) {
+                n = n + parseInt(pubDate[n4 - 2]) * 1;
+            }
+            if (n5 !== -1) {
+                h = h + parseInt(pubDate[n5 - 2]) * 3600;
+            }
+            if (n6 !== -1) {
+                h = h + parseInt(pubDate[n6 - 2]) * 60;
+            }
+            const now = new Date();
+            const Datenow = new Date(now.getTime() - n * 24 * 3600 * 1000 - h * 1000).toISOString();
+            // 列表上提取到的信息
+            const single = {
+                title: $title.text(),
+                description: description,
+                link: itemUrl,
+                guid: itemUrl,
+                pubDate: Datenow,
+            };
+            return Promise.resolve(Object.assign({}, single));
+        })
+    );
+};
+
+module.exports = {
+    ProcessFeed,
+};