feat: 初始化慧遇书院官网一期

server/api/media/[...path].get.ts

@@ -0,0 +1,43 @@
+import { createReadStream, statSync } from 'node:fs'
+import { resolve, sep } from 'node:path'
+
+const contentTypes: Record<string, string> = {
+  jpg: 'image/jpeg',
+  jpeg: 'image/jpeg',
+  png: 'image/png',
+  webp: 'image/webp',
+}
+
+export default defineEventHandler((event) => {
+  const requested = getRouterParam(event, 'path') || ''
+  const uploadsRoot = resolve(process.cwd(), 'data', 'uploads')
+  const legacyRoot = resolve(process.cwd(), 'data', 'media')
+  let mediaRoot = uploadsRoot
+  let filePath = resolve(mediaRoot, requested)
+  if (!filePath.startsWith(`${mediaRoot}${sep}`)) {
+    throw createError({ statusCode: 400, statusMessage: '无效的文件路径' })
+  }
+
+  let fileStat
+  try {
+    fileStat = statSync(filePath)
+  } catch {
+    const legacyPath = resolve(legacyRoot, requested)
+    if (!legacyPath.startsWith(`${legacyRoot}${sep}`)) throw createError({ statusCode: 400, statusMessage: '无效的文件路径' })
+    try { fileStat = statSync(legacyPath); filePath = legacyPath; mediaRoot = legacyRoot }
+    catch { throw createError({ statusCode: 404, statusMessage: '图片不存在' }) }
+  }
+  if (!fileStat.isFile()) {
+    throw createError({ statusCode: 404, statusMessage: '图片不存在' })
+  }
+
+  const extension = filePath.split('.').pop()?.toLowerCase() || ''
+  const contentType = contentTypes[extension]
+  if (!contentType) {
+    throw createError({ statusCode: 415, statusMessage: '不支持的文件类型' })
+  }
+  setHeader(event, 'Content-Type', contentType)
+  setHeader(event, 'Content-Length', fileStat.size)
+  setHeader(event, 'Cache-Control', 'public, max-age=31536000, immutable')
+  return sendStream(event, createReadStream(filePath))
+})