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server.js
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server.js
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const express = require('express');
const axios = require('axios');
const app = express();
const port = 3000;
app.use((req, res, next) => {
res.setHeader('Access-Control-Allow-Origin', '*');
res.setHeader('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE, OPTIONS');
res.setHeader('Access-Control-Allow-Headers', 'Content-Type, Authorization');
next();
});
app.get('/proxy', async (req, res) => {
try {
const url = req.query.url;
const response = await axios.get(url);
let content = response.data;
// 将相对路径转换为绝对路径
const baseUrl = new URL(url);
content = content.replace(/src="([^"]+)"/g, (match, p1) => {
if (!p1.startsWith('http') && !p1.startsWith('//')) {
return `src="${baseUrl.origin}${p1}"`;
}
return match;
});
// 修改 CORS 头信息
res.setHeader('Access-Control-Allow-Origin', '*');
// 可以根据需要添加更多 CORS 头信息
res.setHeader('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE, OPTIONS');
res.setHeader('Access-Control-Allow-Headers', 'Content-Type, Authorization');
res.send(content);
} catch (error) {
res.status(500).send('Error fetching page content');
}
});
app.listen(port, () => {
console.log(`Proxy server running at http://localhost:${port}`);
});