feat: able to add more UI theme (#860)

web/default/src/pages/About/index.js

@@ -0,0 +1,58 @@
+import React, { useEffect, useState } from 'react';
+import { Header, Segment } from 'semantic-ui-react';
+import { API, showError } from '../../helpers';
+import { marked } from 'marked';
+
+const About = () => {
+  const [about, setAbout] = useState('');
+  const [aboutLoaded, setAboutLoaded] = useState(false);
+
+  const displayAbout = async () => {
+    setAbout(localStorage.getItem('about') || '');
+    const res = await API.get('/api/about');
+    const { success, message, data } = res.data;
+    if (success) {
+      let aboutContent = data;
+      if (!data.startsWith('https://')) {
+        aboutContent = marked.parse(data);
+      }
+      setAbout(aboutContent);
+      localStorage.setItem('about', aboutContent);
+    } else {
+      showError(message);
+      setAbout('加载关于内容失败...');
+    }
+    setAboutLoaded(true);
+  };
+
+  useEffect(() => {
+    displayAbout().then();
+  }, []);
+
+  return (
+    <>
+      {
+        aboutLoaded && about === '' ? <>
+          <Segment>
+            <Header as='h3'>关于</Header>
+            <p>可在设置页面设置关于内容，支持 HTML & Markdown</p>
+            项目仓库地址：
+            <a href='https://github.com/songquanpeng/one-api'>
+              https://github.com/songquanpeng/one-api
+            </a>
+          </Segment>
+        </> : <>
+          {
+            about.startsWith('https://') ? <iframe
+              src={about}
+              style={{ width: '100%', height: '100vh', border: 'none' }}
+            /> : <div style={{ fontSize: 'larger' }} dangerouslySetInnerHTML={{ __html: about }}></div>
+          }
+        </>
+      }
+    </>
+  );
+};
+
+
+export default About;