v4.6.5 (#620)

packages/service/common/string/markdown.ts

@@ -0,0 +1,23 @@
+import { simpleMarkdownText } from '@fastgpt/global/common/string/markdown';
+import { Worker } from 'worker_threads';
+import { getWorkerPath } from './utils';
+
+/* html string to markdown */
+export const htmlToMarkdown = (html?: string | null) =>
+  new Promise<string>((resolve, reject) => {
+    if (!html) return resolve('');
+
+    const start = Date.now();
+
+    // worker
+    const worker = new Worker(getWorkerPath('html2md'));
+
+    worker.on('message', (md: string) => {
+      resolve(simpleMarkdownText(md));
+    });
+    worker.on('error', (err) => {
+      reject(err);
+    });
+
+    worker.postMessage(html);
+  });