Files
FileShare/server/internal/middleware/ratelimit_fallback_test.go
T
SKYMirror 9686fe887a FileCodeBox Go 重写版 v2.5.6(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 middleware
import (
"context"
"net/http/httptest"
"testing"
"time"
"github.com/gin-gonic/gin"
"filecodebox/internal/cache"
)
// failingCache 模拟缓存故障(Get/Incr 均返回非 ErrNotFound 错误)。
type failingCache struct{ cache.Cache }
func (f *failingCache) Get(_ context.Context, _ string) (string, error) {
return "", context.DeadlineExceeded
}
func (f *failingCache) Set(_ context.Context, _, _ string, _ time.Duration) error {
return context.DeadlineExceeded
}
func (f *failingCache) Incr(_ context.Context, _ string, _ time.Duration) (int64, error) {
return 0, context.DeadlineExceeded
}
func newLimiterTest(c *gin.Context, cacheImpl cache.Cache, count int) *RateLimiter {
return NewRateLimiter(cacheImpl, map[string]LimitRule{
LimitLogin: {Count: count, Window: time.Minute},
})
}
func ginTestContext() *gin.Context {
gin.SetMode(gin.TestMode)
c, _ := gin.CreateTestContext(httptest.NewRecorder())
c.Request = httptest.NewRequest("POST", "/admin/login", nil)
return c
}
// TestRateLimiterFallbackOnCacheFailure L9:缓存故障时限流降级为进程内计数,
// 超过上限后 Check 拒绝(此前 fail-open 会一直放行)。
func TestRateLimiterFallbackOnCacheFailure(t *testing.T) {
c := ginTestContext()
rl := newLimiterTest(c, &failingCache{cache.NewMemory()}, 3)
for i := 0; i < 3; i++ {
if ok, _ := rl.Check(c, LimitLogin); !ok {
t.Fatalf("第 %d 次检查不应拒绝", i+1)
}
rl.Add(c, LimitLogin)
}
if ok, _ := rl.Check(c, LimitLogin); ok {
t.Fatal("缓存故障降级下,超过上限后 Check 应拒绝(fail-close")
}
}
// TestRateLimiterNormalCacheCounting 正常缓存路径行为不变。
func TestRateLimiterNormalCacheCounting(t *testing.T) {
c := ginTestContext()
rl := newLimiterTest(c, cache.NewMemory(), 2)
for i := 0; i < 2; i++ {
rl.Add(c, LimitLogin)
}
if ok, _ := rl.Check(c, LimitLogin); ok {
t.Fatal("达到上限后 Check 应拒绝")
}
}