Spaces:
Sleeping
Sleeping
const express = require('express'); | |
const fetch = require('node-fetch'); | |
const FormData = require('form-data'); | |
const sharp = require('sharp'); | |
const app = express(); | |
app.get('/resize', async (req, res) => { | |
const imageUrl = req.query.q; | |
const size = parseInt(req.query.s, 10) || 100; // 默认值为 100 | |
if (!imageUrl) { | |
console.error('没有提供图像 URL'); | |
return res.status(400).send('没有提供图像 URL'); | |
} | |
if (isNaN(size) || size <= 0) { | |
console.error('无效的大小参数'); | |
return res.status(400).send('无效的大小参数'); | |
} | |
try { | |
const response = await fetch(imageUrl); | |
if (!response.ok) { | |
throw new Error(`获取图像失败: ${response.statusText}`); | |
} | |
const imageBuffer = await response.buffer(); | |
console.log('原始图像大小:', imageBuffer.byteLength); | |
// 使用 sharp 库来调整图像大小 | |
const resizedImageBuffer = await sharp(imageBuffer).resize(size).toBuffer(); | |
console.log('压缩后的图像大小:', resizedImageBuffer.byteLength); | |
// 将压缩后的图像转换为 Base64 编码的数据 | |
const base64Image = resizedImageBuffer.toString('base64'); | |
// 创建一个 FormData 对象并添加压缩后的图像 | |
// const formData = new FormData(); | |
// formData.append('file', resizedImageBuffer, { filename: 'compressed.jpg', contentType: 'image/jpeg' }); | |
// 使用新的 API 地址和方法上传文件 | |
// const uploadResponse = await fetch('https://ours.pages.dev/upload', { | |
// method: 'POST', | |
// body: formData | |
// }); | |
// if (!uploadResponse.ok) { | |
// throw new Error(`上传图像失败: ${uploadResponse.statusText}`); | |
// } | |
// const uploadResult = await uploadResponse.text(); | |
// console.log('上传结果:', uploadResult); | |
// Parse the JSON response and construct the full URL | |
// const uploadResultJson = JSON.parse(uploadResult); | |
// const fullUrl = `https://ours.pages.dev${uploadResultJson[0].src}`; | |
res.setHeader('Content-Type', 'text/plain'); | |
res.setHeader('Access-Control-Allow-Origin', '*'); | |
res.setHeader('Access-Control-Allow-Methods', 'GET, POST, OPTIONS'); | |
res.setHeader('Access-Control-Allow-Headers', 'Content-Type'); | |
res.setHeader('Access-Control-Max-Age', '86400'); | |
res.send(base64Image); | |
} catch (error) { | |
console.error('压缩图像时出错:', error); | |
res.status(500).send('压缩图像时出错'); | |
} | |
}); | |
const PORT = process.env.PORT || 7860; | |
app.listen(PORT, () => { | |
console.log(`Server is running on port ${PORT}`); | |
}); | |