first commit

app/api/screenshots/[fileId]/route.ts

@@ -0,0 +1,44 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { getFileByObjectName } from '@/lib/fileStorage'
+import { prisma } from '@/lib/prisma'
+import { withCors } from '@/lib/middleware'
+
+async function handleScreenshotFile(req: NextRequest) {
+  try {
+    const pathSegments = req.nextUrl.pathname.split('/')
+    const fileIdIndex = pathSegments.indexOf('screenshots') + 1
+    const fileId = pathSegments[fileIdIndex]
+    
+    if (!fileId) {
+      return NextResponse.json({ error: '缺少文件ID' }, { status: 400 })
+    }
+
+    // 从数据库查找 objectName
+    const screenshot = await prisma.screenshot.findFirst({
+      where: { fileId },
+      select: { objectName: true }
+    })
+    
+    if (!screenshot) {
+      return NextResponse.json({ error: '截图不存在' }, { status: 404 })
+    }
+
+    const file = await getFileByObjectName(screenshot.objectName)
+    if (!file) {
+      return NextResponse.json({ error: '文件不存在' }, { status: 404 })
+    }
+
+    return new NextResponse(file.buffer, {
+      headers: {
+        'Content-Type': file.contentType || 'image/webp',
+        'Cache-Control': 'public, max-age=31536000',
+      }
+    })
+
+  } catch (error) {
+    console.error('获取截图失败:', error)
+    return NextResponse.json({ error: '获取截图失败' }, { status: 500 })
+  }
+}
+
+export const GET = withCors(handleScreenshotFile)