是否可以获取Web API控制器的构造函数中的头信息？我想根据标头值设置变量,但我不想对每个方法都这样做.我对自定义标头值特别感兴趣,但此时我会满足授权标准.我可以让它在AuthorizationFilterAttribute中工作,但我也需要它在控制器级别.
[PolicyAuthorize]
public class PoliciesController : ApiController
{
public PoliciesController()
{
var x = HttpContext.Current; //will be null in constructor
}
public HttpResponseMessage Get()
{
var x = HttpContext.Current; //will be available but too late
}
}
public class PolicyAuthorizeAttribute : AuthorizationFilterAttribute
{
public override void OnAuthorization(HttpActionContext actionContext)
{
var authHeader = actionContext.Request.Headers.Authorization; //can get at Authorization header here but no HTTPActionContext in controller
}
}
解决方法
以下是您可以考虑的一些选项…更喜欢1.超过2.
>将其他数据存储在当前请求消息的属性包HttpRequestMessage.Properties中,并在控制器中具有一个便利属性,控制器中的所有操作都可以访问该属性.
[CustomAuthFilter]
public class ValuesController : ApiController
{
public string Name
{
get
{
return Request.Properties["Name"].ToString();
}
}
public string GetAll()
{
return this.Name;
}
}
public class CustomAuthFilter : AuthorizationFilterAttribute
{
public override void OnAuthorization(HttpActionContext actionContext)
{
actionContext.Request.Properties["Name"] = "<your value from header>";
}
}
[CustomAuthFilter]
public class ValuesController : ApiController
{
public string Name { get; set; }
public string GetAll()
{
return this.Name;
}
}
public class CustomAuthFilter : AuthorizationFilterAttribute
{
public override void OnAuthorization(HttpActionContext actionContext)
{
ValuesController valuesCntlr = actionContext.ControllerContext.Controller as ValuesController;
if (valuesCntlr != null)
{
valuesCntlr.Name = "<your value from header>";
}
}
}
