public class ExampleRoute : RouteBase
{
public override RouteData GetRouteData(HttpContextBase httpContext)
{
var url = httpContext.Request.Headers["HOST"];
var index = url.IndexOf(".");
if (index < 0)
return null;
var subDomain = url.Substring(0, index);
if (subDomain == "user1")
{
var routeData = new RouteData(this, new MvcRouteHandler());
routeData.Values.Add("controller", "User1"); //Goes to the User1Controller class
routeData.Values.Add("action", "Index"); //Goes to the Index action on the User1Controller
return routeData;
}
if (subDomain == "user2")
{
var routeData = new RouteData(this, new MvcRouteHandler());
routeData.Values.Add("controller", "User2"); //Goes to the User2Controller class
routeData.Values.Add("action", "Index"); //Goes to the Index action on the User2Controller
return routeData;
}
return null;
}
public override VirtualPathData GetVirtualPath(RequestContext requestContext, RouteValueDictionary values)
{
//Implement your formating Url formating here
return null;
}
}
查询参数还允许使用Visual Studio 2013进行本地调试,而无需使用netsh配置或以管理员身份运行。默认情况下,IIS Express仅在未提升时绑定到本地主机;它不会绑定到同义主机名,如sub.localtest.me。
class SubdomainRoute : Route
{
public SubdomainRoute(string url) : base(url, new MvcRouteHandler()) {}
public override RouteData GetRouteData(HttpContextBase httpContext)
{
var routeData = base.GetRouteData(httpContext);
if (routeData == null) return null; // Only look at the subdomain if this route matches in the first place.
string subdomain = httpContext.Request.Params["subdomain"]; // A subdomain specified as a query parameter takes precedence over the hostname.
if (subdomain == null) {
string host = httpContext.Request.Headers["Host"];
int index = host.IndexOf('.');
if (index >= 0)
subdomain = host.Substring(0, index);
}
if (subdomain != null)
routeData.Values["subdomain"] = subdomain;
return routeData;
}
public override VirtualPathData GetVirtualPath(RequestContext requestContext, RouteValueDictionary values)
{
object subdomainParam = requestContext.HttpContext.Request.Params["subdomain"];
if (subdomainParam != null)
values["subdomain"] = subdomainParam;
return base.GetVirtualPath(requestContext, values);
}
}
/// <summary>
/// A router that propagates the request's "host" query parameter to the response.
/// </summary>
class HostPropagationRouter : IRouter
{
readonly IRouter router;
public HostPropagationRouter(IRouter router)
{
this.router = router;
}
public VirtualPathData GetVirtualPath(VirtualPathContext context)
{
if (context.HttpContext.Request.Query.TryGetValue("host", out var host))
context.Values["host"] = host;
return router.GetVirtualPath(context);
}
public Task RouteAsync(RouteContext context) => router.RouteAsync(context);
}
[IsDomain("localhost","example.com","www.example.com","*.t1.example.com")]
[HttpGet("RestrictedByHost")]
public IActionResult Test(){}
也可以直接应用到控制器上。
public class IsDomainAttribute : Attribute, Microsoft.AspNetCore.Mvc.Filters.IAuthorizationFilter
{
public IsDomainAttribute(params string[] domains)
{
Domains = domains;
}
public string[] Domains { get; }
public void OnAuthorization(AuthorizationFilterContext context)
{
var host = context.HttpContext.Request.Host.Host;
if (Domains.Contains(host))
return;
if (Domains.Any(d => d.EndsWith("*"))
&& Domains.Any(d => host.StartsWith(d.Substring(0, d.Length - 1))))
return;
if (Domains.Any(d => d.StartsWith("*"))
&& Domains.Any(d => host.EndsWith(d.Substring(1))))
return;
context.Result = new Microsoft.AspNetCore.Mvc.NotFoundResult();//.ChallengeResult
}
}
< p >限制:
你可能不能在不同的过滤器的不同方法上有两个相同的路由
我的意思是下面可能会抛出重复路由的异常:
[IsDomain("test1.example.com")]
[HttpGet("/Test")]
public IActionResult Test1(){}
[IsDomain("test2.example.com")]
[HttpGet("/Test")]
public IActionResult Test2(){}