BabyVideoService/Http/SignValidationAttribute.cs

// Filters/SignValidationFilter.cs

using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Filters;
using Microsoft.Extensions.DependencyInjection;

namespace ACBuildService.Filters;

[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method)]
public class SignValidationAttribute : Attribute, IAsyncActionFilter
{
    public async Task OnActionExecutionAsync(ActionExecutingContext context, ActionExecutionDelegate next)
    {
        // 检查请求是否包含 form-data
        if (context.HttpContext.Request.HasFormContentType)
        {
            var form = context.HttpContext.Request.Form;

            // 尝试从表单中获取 Sign
            if (form.TryGetValue("Sign", out var signValue))
            {
                if (!signValue.ToString().Equals(App.Settings.Password))
                {
                    // 验证失败，直接返回错误
                    context.Result = new ObjectResult(new ResponseData<string>
                    {
                        Code = (int)ErrorCode.ArgsError,
                        Data = "sign is error"
                    });
                    return;
                }
            }
            else
            {
                // 没有 Sign 字段
                context.Result = new ObjectResult(new ResponseData<string>
                {
                    Code = (int)ErrorCode.ArgsError,
                    Data = "sign is null"
                });
                return;
            }
        }
        else
        {
            context.Result = new ObjectResult(new ResponseData<string>
            {
                Code = (int)ErrorCode.ArgsError,
                Data = "请求格式必须是 form-data"
            });
            return;
        }

        // 验证通过，继续执行 Action
        await next();
    }
}