Files
FileShare/server/internal/api/web.go
T
SKYMirror 7f060dd0e4 26.9(安全审计修复版)
Go 1.27.1 (Gin+GORM) + Vue 3 文件快传服务:

- 安全审计全部修复(docs/security-audit-2026-09-05.md):
  bcrypt 密码哈希与自动升级、presign 直传服务端大小/内容校验、
  全局请求体上限、依赖升级(govulncheck 0 命中)、janitor 后台清理、
  管理端审计动作落库、/admin CORS 收紧、通知内容白名单净化、
  会话默认 7 天、限流缓存故障降级、robots.txt 端点等
- 前端:取件链接复制修复(不再重复拼接提取码)、markdown 净化器加固
- Redis 支持库号(FCB_REDIS_DB / redis://…/db URL)
- 文档:docs/api/* 与 openapi.yaml 同步最新行为(robots.txt、
  提码 5 位起、chunk 32MiB 上限、admin 审计动作等)

验证:gofmt/go vet/go test 全绿;二进制端到端冒烟通过
2026-09-05 04:22:41 +08:00

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package api
import (
"io/fs"
"net/http"
"path"
"strings"
"github.com/gin-gonic/gin"
"filecodebox/internal/response"
web "filecodebox/web"
)
// registerWeb 注册前端静态资源与 SPA 回退(必须最后注册):
// - 静态资源命中 web/dist 内文件则直接服务(带 Immutable 缓存,html 不缓存);
// - 未命中且为 GET/HEAD 且非 /api 前缀:回退 index.html(前端 history 路由
// /s/:code、/admin/*、/docs、/openapi 由 SPA 接管);
// - /api/* 未命中路由:JSON 404(避免调试时拿到 HTML 掩盖真实错误)。
func registerWeb(r *gin.Engine, d *Deps) {
dist, err := web.Dist()
if err != nil {
return // 嵌入异常时跳过(API 仍可用)
}
fileServer := http.StripPrefix("/", http.FileServer(http.FS(dist)))
indexHTML := readIndexHTML(dist)
r.NoRoute(func(c *gin.Context) {
p := c.Request.URL.Path
// 1. API 未命中:JSON 404
if strings.HasPrefix(p, "/api/") || p == "/api" {
response.Fail(c, http.StatusNotFound, "接口不存在")
return
}
// 2. 静态资源命中:直接服务
if p != "/" {
clean := strings.TrimPrefix(path.Clean(p), "/")
if clean != "" {
if f, err := dist.Open(clean); err == nil {
_ = f.Close()
fileServer.ServeHTTP(c.Writer, c.Request)
return
}
}
}
// 3. SPA 回退:仅 GET/HEAD 且接受 HTML
if c.Request.Method == http.MethodGet || c.Request.Method == http.MethodHead {
accept := c.GetHeader("Accept")
if accept == "" || strings.Contains(accept, "text/html") || strings.Contains(accept, "*/*") {
if indexHTML != nil {
c.Data(http.StatusOK, "text/html; charset=utf-8", indexHTML)
return
}
}
// 非 HTML 请求未命中:普通 404
c.Status(http.StatusNotFound)
return
}
c.Status(http.StatusNotFound)
})
}
// readIndexHTML 读取嵌入的 index.htmlSPA 回退用)。
func readIndexHTML(dist fs.FS) []byte {
f, err := dist.Open("index.html")
if err != nil {
return nil
}
defer func() { _ = f.Close() }()
data, err := fs.ReadFile(dist, "index.html")
if err != nil {
return nil
}
return data
}