2025-12-26 18:55:04 +08:00
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using Microsoft.AspNetCore.Mvc.Filters;
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2025-12-26 18:59:27 +08:00
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namespace SHH.CameraSdk;
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2025-12-26 21:19:43 +08:00
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/// <summary>
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/// 全局用户操作过滤器
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/// 作用:拦截所有 API 请求,记录关键操作(如新增、删除、修改设备)
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/// 优化:使用依赖注入 (DI) 获取存储服务,避免直接文件 IO 导致的锁冲突
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/// </summary>
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public class UserActionFilter : IActionFilter
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{
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private readonly IStorageService _storage;
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2025-12-26 18:59:27 +08:00
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2025-12-26 21:19:43 +08:00
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// 【关键点】构造函数注入
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// ASP.NET Core 会自动把我们在 Program.cs 中注册的 IStorageService 实例传进来
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public UserActionFilter(IStorageService storage)
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{
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_storage = storage;
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}
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/// <summary>
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/// Action 执行【后】触发
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/// </summary>
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public void OnActionExecuted(ActionExecutedContext context)
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{
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// 1. 获取请求的基本信息
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var method = context.HttpContext.Request.Method;
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var path = context.HttpContext.Request.Path;
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2025-12-26 21:19:43 +08:00
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// 2. 过滤逻辑:为了防止日志爆炸,我们通常只记录非 GET 请求
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// (例如:只记录 POST/PUT/DELETE 等修改性操作)
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if (method != "GET")
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{
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var ip = context.HttpContext.Connection.RemoteIpAddress?.ToString() ?? "Unknown";
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2025-12-26 21:19:43 +08:00
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// 3. 调用存储服务写入日志
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// 注意:这里我们不等待任务完成 (Fire-and-Forget),以免日志写入拖慢 API 响应速度
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// 因为 _storage.AppendSystemLogAsync 内部目前是空实现(Task.CompletedTask),所以这里绝对不会卡顿
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_ = _storage.AppendSystemLogAsync(method, ip, path);
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2025-12-26 18:55:04 +08:00
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}
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}
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2025-12-26 18:59:27 +08:00
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2025-12-26 21:19:43 +08:00
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/// <summary>
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/// Action 执行【前】触发 (此处不需要处理)
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/// </summary>
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public void OnActionExecuting(ActionExecutingContext context)
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{
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// Do nothing
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}
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2025-12-26 18:55:04 +08:00
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}
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