在Owin启动类中指定域
本文关键字:Owin 启动 | 更新日期: 2023-09-27 18:07:57
我创建了一个自托管的Owin/SignalR应用程序,代码与本教程中的代码相似:
SignalR Self Host Tutorial
一切正常,但出于安全考虑,我想将其限制为只允许来自特定远程站点的消息。换句话说,我想取代"app. usecors (CorsOptions.AllowAll);"行代码限制应用程序只响应来自我定义的URL的消息,即只允许来自,说,http://www.remote_site.com或其他东西的消息。有什么简单的方法可以做到吗?
作为参考,下面是我的SignalR启动类的代码:
using System;
using Microsoft.AspNet.SignalR;
using Microsoft.Owin.Hosting;
using Owin;
using Microsoft.Owin.Cors;
namespace SignalRSelfHost
{
public class Startup
{
public void Configuration(IAppBuilder app)
{
app.UseCors(CorsOptions.AllowAll);
app.MapSignalR();
// How do I only allow a specific URL instead of the "CorsOptions.AllowAll" option?
}
}
}
下面是Owin Startup
类的完整实现:
using System.Threading.Tasks;
using Microsoft.Owin;
using Owin;
using Microsoft.Owin.Cors;
using System.Web.Cors;
[assembly: OwinStartup(typeof(SignalRSelfHost.Startup))]
namespace SignalRSelfHost
{
public class Startup
{
public void Configuration(IAppBuilder app)
{
var policy = new CorsPolicy()
{
AllowAnyHeader = true,
AllowAnyMethod = true,
SupportsCredentials = true
};
policy.Origins.Add("domain"); //be sure to include the port:
//example: "http://localhost:8081"
app.UseCors(new CorsOptions
{
PolicyProvider = new CorsPolicyProvider
{
PolicyResolver = context => Task.FromResult(policy)
}
});
app.MapSignalR();
}
}
}
同样,如果您想让服务器接受一个域列表,您只需将它们添加到Origins
。
希望这对你有帮助!好运!
这是我在上面的注释中提到的代码:
public class Startup
{
public void Configuration(IAppBuilder app)
{
app.UseCors(_corsOptions.Value);
app.MapSignalR();
}
private static Lazy<CorsOptions> _corsOptions = new Lazy<CorsOptions>(() =>
{
return new CorsOptions
{
PolicyProvider = new CorsPolicyProvider
{
PolicyResolver = context =>
{
var policy = new CorsPolicy();
policy.Origins.Add("http://localhost:8081");
policy.AllowAnyMethod = true;
policy.AllowAnyHeader = true;
policy.SupportsCredentials = true;
return Task.FromResult(policy);
}
}
};
});
}
这是可行的,但我认为Matei上面的答案更清晰更简单。