我正在尝试在旧版 ASP.NET WebForms 应用程序中实现多租户。我希望 URL 指示正确的客户端，如下所示：
http://example.com/client_name/Default.aspx
http://example.com/client_name/MyWebService.asmx
但是，我无法让它正确地路由 .asmx。此路由规则可以很好地提取所有传入的 url：
routes.Add("ClientSelector", new System.Web.Routing.Route
(
"{client}/{*path}",
routeHandler: new ClientRoute()
));
但我在处理 .asmx 调用时遇到问题。下面是我的 IRouteHandler。我得到的错误是：
A first chance exception of type 'System.Web.Services.Protocols.SoapException' occurred in System.Web.Services.dll
Additional information: Unable to handle request without a valid action parameter. Please supply a valid soap action.
它应该是 JSON，但由于某种原因它不起作用。我正在设置内容类型 - 如果我在没有路由的情况下发送相同的请求，它工作正常。
public class ClientRoute : System.Web.Routing.IRouteHandler
{
private string m_Path;
private string m_Client;
public ClientRoute() { }
public bool IsReusable { get { return true; } }
public IHttpHandler GetHttpHandler(System.Web.Routing.RequestContext requestContext)
{
this.m_Path = (string)requestContext.RouteData.Values["path"];
this.m_Client = (string)requestContext.RouteData.Values["client"];
string virtualPath = "~/" + this.m_Path;
bool shouldValidate = false;
if (shouldValidate && !UrlAuthorizationModule.CheckUrlAccessForPrincipal(
virtualPath, requestContext.HttpContext.User,
requestContext.HttpContext.Request.HttpMethod))
{
requestContext.HttpContext.Response.StatusCode = (int)HttpStatusCode.Unauthorized;
requestContext.HttpContext.Response.End();
return null;
}
else
{
HttpContext.Current.RewritePath(virtualPath);
HttpContext.Current.Items.Add("Client", this.m_Client);
if (virtualPath.EndsWith(".aspx"))
return (IHttpHandler)BuildManager.CreateInstanceFromVirtualPath(virtualPath, typeof(Page));
else
{
var asmxPos = virtualPath.IndexOf(".asmx", StringComparison.OrdinalIgnoreCase);
if (asmxPos >= 0)
{
// What goes here? This isn't working...
var asmxOnlyVirtualPath = virtualPath.Substring(0, asmxPos + 5);
return new System.Web.Services.Protocols.WebServiceHandlerFactory().GetHandler(
HttpContext.Current, HttpContext.Current.Request.HttpMethod, asmxOnlyVirtualPath, HttpContext.Current.Server.MapPath(asmxOnlyVirtualPath));
}
else
return new StaticRoute();
}
}
}
}
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