示例#1
0
        /// <summary>
        /// Action执行之前执行
        /// </summary>
        /// <param name="filterContext"></param>
        public async override Task OnActionExecuting(ActionExecutingContext filterContext)
        {
            IBase_AppSecretBusiness appSecretBus = AutofacHelper.GetScopeService <IBase_AppSecretBusiness>();
            ILogger logger = AutofacHelper.GetScopeService <ILogger>();

            //若为本地测试,则不需要校验
            if (GlobalSwitch.RunMode == RunMode.LocalTest)
            {
                return;
            }

            //判断是否需要签名
            if (filterContext.ContainsFilter <IgnoreSignAttribute>())
            {
                return;
            }

            var    request = filterContext.HttpContext.Request;
            string appId   = request.Headers["appId"].ToString();

            if (appId.IsNullOrEmpty())
            {
                ReturnError("缺少header:appId");
                return;
            }
            string time = request.Headers["time"].ToString();

            if (time.IsNullOrEmpty())
            {
                ReturnError("缺少header:time");
                return;
            }
            if (time.ToDateTime() < DateTime.Now.AddMinutes(-5) || time.ToDateTime() > DateTime.Now.AddMinutes(5))
            {
                ReturnError("time过期");
                return;
            }

            string guid = request.Headers["guid"].ToString();

            if (guid.IsNullOrEmpty())
            {
                ReturnError("缺少header:guid");
                return;
            }

            string guidKey = $"{GlobalSwitch.ProjectName}_apiGuid_{guid}";

            if (CacheHelper.Cache.GetCache(guidKey).IsNullOrEmpty())
            {
                CacheHelper.Cache.SetCache(guidKey, "1", new TimeSpan(0, 10, 0));
            }
            else
            {
                ReturnError("禁止重复调用!");
                return;
            }

            string body = request.Body.ReadToString();

            string sign = request.Headers["sign"].ToString();

            if (sign.IsNullOrEmpty())
            {
                ReturnError("缺少header:sign");
                return;
            }

            string appSecret = await appSecretBus.GetAppSecretAsync(appId);

            if (appSecret.IsNullOrEmpty())
            {
                ReturnError("header:appId无效");
                return;
            }

            string newSign = HttpHelper.BuildApiSign(appId, appSecret, guid, time.ToDateTime(), body);

            if (sign != newSign)
            {
                string log =
                    $@"header:sign签名错误!
headers:{request.Headers.ToJson()}
body:{body}
正确sign:{newSign}
";
                logger.Error(LogType.系统异常, log);
                ReturnError("header:sign签名错误");
                return;
            }

            void ReturnError(string msg)
            {
                filterContext.Result = Error(msg);
            }
        }
示例#2
0
        /// <summary>
        /// Action执行之前执行
        /// </summary>
        /// <param name="filterContext"></param>
        public async override Task OnActionExecuting(ActionExecutingContext filterContext)
        {
            //判断是否需要签名
            if (filterContext.ContainsFilter <IgnoreSignAttribute>())
            {
                return;
            }
            var request = filterContext.HttpContext.Request;
            IServiceProvider        serviceProvider = filterContext.HttpContext.RequestServices;
            IBase_AppSecretBusiness appSecretBus    = serviceProvider.GetService <IBase_AppSecretBusiness>();
            ILogger logger = serviceProvider.GetService <ILogger <CheckSignAttribute> >();
            var     cache  = serviceProvider.GetService <IDistributedCache>();

            string appId = request.Headers["appId"].ToString();

            if (appId.IsNullOrEmpty())
            {
                ReturnError("缺少header:appId");
                return;
            }
            string time = request.Headers["time"].ToString();

            if (time.IsNullOrEmpty())
            {
                ReturnError("缺少header:time");
                return;
            }
            if (time.ToDateTime() < DateTime.Now.AddMinutes(-5) || time.ToDateTime() > DateTime.Now.AddMinutes(5))
            {
                ReturnError("time过期");
                return;
            }

            string guid = request.Headers["guid"].ToString();

            if (guid.IsNullOrEmpty())
            {
                ReturnError("缺少header:guid");
                return;
            }

            string guidKey = $"ApiGuid_{guid}";

            if (cache.GetString(guidKey).IsNullOrEmpty())
            {
                cache.SetString(guidKey, "1", new DistributedCacheEntryOptions
                {
                    AbsoluteExpirationRelativeToNow = TimeSpan.FromMinutes(10)
                });
            }
            else
            {
                ReturnError("禁止重复调用!");
                return;
            }

            string body = request.Body.ReadToString();

            string sign = request.Headers["sign"].ToString();

            if (sign.IsNullOrEmpty())
            {
                ReturnError("缺少header:sign");
                return;
            }

            string appSecret = await appSecretBus.GetAppSecretAsync(appId);

            if (appSecret.IsNullOrEmpty())
            {
                ReturnError("header:appId无效");
                return;
            }

            string newSign = HttpHelper.BuildApiSign(appId, appSecret, guid, time.ToDateTime(), body);

            if (sign != newSign)
            {
                string log =
                    $@"sign签名错误!
headers:{request.Headers.ToJson()}
body:{body}
正确sign:{newSign}
";
                logger.LogWarning(log);
                ReturnError("header:sign签名错误");
                return;
            }

            void ReturnError(string msg)
            {
                filterContext.Result = Error(msg);
            }
        }