67 lines
2.2 KiB
JavaScript
67 lines
2.2 KiB
JavaScript
import fs from 'fs'
|
|
import fsp from 'fs/promises'
|
|
import path from 'path'
|
|
|
|
// Minimal auth check using existing auth cookie/session
|
|
function isAuthenticated(event) {
|
|
try {
|
|
const token = getCookie(event, 'auth_token') || getCookie(event, 'session_token')
|
|
return token && String(token).trim() !== ''
|
|
} catch (e) {
|
|
return false
|
|
}
|
|
}
|
|
|
|
// Resolve file path within a non-public internal media directory
|
|
function resolveInternalPath(reqPath) {
|
|
const baseDir = path.join(process.cwd(), 'server', 'private', 'gallery-internal')
|
|
// prevent path traversal
|
|
const safe = path.normalize(reqPath).replace(/^\/+/, '')
|
|
return path.join(baseDir, safe)
|
|
}
|
|
|
|
export default defineEventHandler(async (event) => {
|
|
// auth gate
|
|
if (!isAuthenticated(event)) {
|
|
throw createError({ statusCode: 401, statusMessage: 'Nicht autorisiert' })
|
|
}
|
|
|
|
const param = event.context.params?.path
|
|
const reqPath = Array.isArray(param) ? param.join('/') : String(param || '')
|
|
if (!reqPath) {
|
|
throw createError({ statusCode: 400, statusMessage: 'Bildpfad fehlt' })
|
|
}
|
|
|
|
const filePath = resolveInternalPath(reqPath)
|
|
// check existence and ensure it stays within baseDir
|
|
const baseDir = path.join(process.cwd(), 'server', 'private', 'gallery-internal')
|
|
const resolved = path.resolve(filePath)
|
|
if (!resolved.startsWith(path.resolve(baseDir))) {
|
|
throw createError({ statusCode: 400, statusMessage: 'Ungültiger Pfad' })
|
|
}
|
|
|
|
try {
|
|
const stat = await fsp.stat(resolved)
|
|
if (!stat.isFile()) throw new Error('not a file')
|
|
} catch (e) {
|
|
throw createError({ statusCode: 404, statusMessage: 'Datei nicht gefunden' })
|
|
}
|
|
|
|
// determine content type by extension
|
|
const ext = path.extname(resolved).toLowerCase()
|
|
const contentType = (
|
|
ext === '.jpg' || ext === '.jpeg' ? 'image/jpeg' :
|
|
ext === '.png' ? 'image/png' :
|
|
ext === '.gif' ? 'image/gif' :
|
|
ext === '.webp' ? 'image/webp' :
|
|
ext === '.svg' ? 'image/svg+xml' :
|
|
'application/octet-stream'
|
|
)
|
|
|
|
// stream the file
|
|
const stream = fs.createReadStream(resolved)
|
|
setHeader(event, 'Content-Type', contentType)
|
|
setHeader(event, 'Cache-Control', 'private, max-age=0, no-store')
|
|
return sendStream(event, stream)
|
|
})
|