fix: leetcode.com题解展示 (#10515)

* fix: leetcode.com题解展示

* fix: dynamic uuid

* fix: spacing

lib/v2/leetcode/dailyquestion-solution-en.js

@@ -2,6 +2,7 @@ const got = require('@/utils/got');
 const showdown = require('showdown');
 const { parseDate } = require('@/utils/parse-date');
 const timezone = require('@/utils/timezone');
+const path = require('path');
 module.exports = async (ctx) => {
     const baseurl = `https://leetcode.com`;
     const url = `${baseurl}/graphql/`;
@@ -106,12 +107,89 @@ module.exports = async (ctx) => {
             headers,
         })
     ).data.data.question.solution;
+    if (article.content === null) {
+        article.content = 'Sorry, the solution of this question may be locked.';
+    }
     const converter = new showdown.Converter();
-    const handleText = (s) => {
-        // 处理多语言代码展示问题
-        s = s.replace(/(```)([a-zA-Z0-9-+#]+)\s*?(\[.*?\])?\n/g, '\r\n###$2\r\n$1$2\r\n');
+    // 图片处理
+    const parsePngSlide = async (s) => {
+        const pattern = /!\?!(.+)!\?!/;
+        if (!pattern.test(s)) {
+            return s;
+        }
+        const matched = s.match(new RegExp(pattern, 'g'));
+        const fn = async (m) => {
+            const relaurl = m.match(pattern)[1].split(':')[0];
+            const fullurl = path.resolve('/' + questionUrl + 'solution/', relaurl).slice(1);
+            const pngList = (
+                await got({
+                    url: fullurl,
+                    method: 'get',
+                    headers,
+                })
+            ).data.timeline;
+            return pngList.map((v) => `![pic](${path.resolve(`/problems/${questionTitle}/solution/`, v.image)})`).join('\n');
+        };
+        const strs = await Promise.all(matched.map((v) => fn(v)));
+        for (let i = 0; i < matched.length; i++) {
+            s = s.replace(matched[i], strs[i]);
+        }
         return s;
     };
+    // iframe代码框处理
+    const parseIframe = async (s) => {
+        const pattern = new RegExp('<iframe.*? src=".*?playground/(.*?)/shared".*</iframe>');
+        if (!pattern.test(s)) {
+            return s;
+        }
+        const matched = s.match(new RegExp(pattern, 'g'));
+        const fn = async (m) => {
+            const uuid = m.match(pattern)[1];
+            const code = (
+                await got({
+                    method: 'post',
+                    url,
+                    json: {
+                        operationName: 'fetchPlayground',
+                        query: `query fetchPlayground {
+                            playground(uuid: "${uuid}") {
+                              testcaseInput
+                              name
+                              isUserOwner
+                              isLive
+                              showRunCode
+                              showOpenInPlayground
+                              selectedLangSlug
+                              isShared
+                              __typename
+                            }
+                            allPlaygroundCodes(uuid: "${uuid}") {
+                              code
+                              langSlug
+                              __typename
+                            }
+                          }`,
+                        variables: {},
+                    },
+                    headers,
+                })
+            ).data.data.allPlaygroundCodes;
+            return code.map((c) => `###${c.langSlug}\n\r \`\`\`${c.langSlug}\n ${c.code}\n\`\`\``).join('\n\r');
+        };
+        const strs = await Promise.all(matched.map((v) => fn(v)));
+        for (let i = 0; i < matched.length; i++) {
+            s = s.replace(matched[i], strs[i]);
+        }
+        return s;
+    };
+    const handleText = async (s) => {
+        // 处理代码iframe嵌入问题
+        s = await parseIframe(s);
+        // 处理图片展示问题
+        s = await parsePngSlide(s);
+        return s;
+    };
+    article.content = await handleText(article.content);
     ctx.state.data = {
         title: 'LeetCode DailyQuestion Solution',
         description: 'LeetCode DailyQuestion Solution',
@@ -126,7 +204,7 @@ module.exports = async (ctx) => {
             {
                 title: `Solution-${question.title}`,
                 link: `${questionUrl}solution/`,
-                description: converter.makeHtml(handleText(article.content)),
+                description: converter.makeHtml(article.content),
                 pubDate: timezone(parseDate(data.activeDailyCodingChallengeQuestion.date), +8),
                 author: 'leetcode',
             },