web api 过滤器

/// <summary> /// 渠道过滤器 /// </summary> [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false)] public class ChannelActionFilterAttribute : ActionFilterAttribute { /// <summary> /// 请求接口之前渠道过滤 /// </summary> /// <param name="actionContext"></param> public override void OnActionExecuting(HttpActionContext actionContext) { var identity = ParseHeader(actionContext); if (identity == null) { actionContext.Response = actionContext.Request.CreateResponse(HttpStatusCode.Forbidden,"请求来源未知，没有该接口访问权限。"); return; } if (!ValidChannel(identity)) { actionContext.Response = actionContext.Request.CreateResponse(HttpStatusCode.Forbidden, "请求来源未知，没有该接口访问权限。"); } base.OnActionExecuting(actionContext); } /// <summary> /// 渠道验证 /// </summary> /// <param name="identity">渠道信息</param> /// <returns></returns> protected bool ValidChannel(ChannelIdentity identity) { ChannelsService svr = new ChannelsService(); try { return svr.ValidateChannel(identity.SecretKey, identity.AppKey); } catch (Exception ex) { Logger.Warn("ChannelActionFilterAttribute[ValidChannel]:渠道来源校验时发生异常", ex); return false; } } /// <summary> /// 获取渠道信息 /// </summary> /// <param name="actionContext"></param> protected ChannelIdentity ParseHeader(HttpActionContext actionContext) { IEnumerable<string> secretKeys = null; IEnumerable<string> appKeys = null; string secretKey = string.Empty; string appKey = string.Empty; if(actionContext.Request.Headers.TryGetValues("SecretKey", out secretKeys)) { foreach (var key in secretKeys) { secretKey = key; break; } } if (actionContext.Request.Headers.TryGetValues("AppKey", out appKeys)) { foreach (var key in appKeys) { appKey = key; break; } } if (!string.IsNullOrEmpty(secretKey) && !string.IsNullOrEmpty(appKey)) { return new ChannelIdentity(secretKey, appKey); } return null; } }

控制器controller中使用过滤器：

/// <summary> /// 用户管理 /// </summary> [ChannelActionFilter, RoutePrefix("Media/Users")] public class UsersController : ApiController { //todo }

 

转载于:https://www.cnblogs.com/zoro-zero/p/5478644.html

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