wangxiaogang
5a0ae0b28d
- C2: ColorPicker and EditModal reusable components extracted - C2: tag-manage and category-manage pages use EditModal (remove ~120 dup lines) - C3: Upload logic extracted to server/src/utils/upload.ts - C4: /recurring/sync wrapped in DB transaction - C7: Backup download uses API_BASE (no hardcoded URLs) - C9: getAvatarUrl() utility function, used in 5 files - C1: getCurrentMonth() documented as aligned with server date.ts
46 lines
1.3 KiB
TypeScript
46 lines
1.3 KiB
TypeScript
import multer from 'multer'
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import path from 'path'
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import crypto from 'crypto'
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import fs from 'fs'
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const UPLOAD_DIR = process.env.UPLOAD_DIR || './uploads'
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/** 创建指定子目录的 multer 配置 */
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export function createUploadConfig(subDir: string, maxFileSize = 5 * 1024 * 1024) {
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const targetDir = path.resolve(UPLOAD_DIR, subDir)
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// 确保目录存在
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if (!fs.existsSync(targetDir)) {
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fs.mkdirSync(targetDir, { recursive: true })
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}
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const storage = multer.diskStorage({
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destination: (_req, _file, cb) => {
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// 运行时再次确认（可能被手动删除）
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if (!fs.existsSync(targetDir)) {
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fs.mkdirSync(targetDir, { recursive: true })
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}
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cb(null, targetDir)
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},
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filename: (_req, file, cb) => {
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const ext = path.extname(file.originalname).toLowerCase() || '.jpg'
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const prefix = subDir === 'avatars' ? '' : 'notif_'
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cb(null, `${prefix}${Date.now()}_${crypto.randomInt(1000, 9999)}${ext}`)
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}
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})
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return multer({
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storage,
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limits: { fileSize: maxFileSize },
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fileFilter: (_req, file, cb) => {
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const allowed = ['.jpg', '.jpeg', '.png', '.webp']
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const ext = path.extname(file.originalname).toLowerCase()
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if (allowed.includes(ext)) {
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cb(null, true)
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} else {
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cb(new Error('仅支持 JPEG、PNG、WebP 格式'))
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}
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}
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})
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}
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