我如何获得ASP.NET的WebForms路由路由的.asmx JSON调用正确？ [英] How do I get ASP.NET WebForms Routing to route .asmx JSON calls properly?

问题描述

我试图实现在传统ASP.NET应用程序的WebForms多租户。我想要的网址，以指示正确的客户端，就像这样：

I am attempting to implement multi-tenancy in a legacy ASP.NET WebForms app. I want the URL to indicate the proper client, like so:

http://example.com/client_name/Default.aspx
http://example.com/client_name/MyWebService.asmx

不过，我不能得到它路由的.asmx的正常。该路由规则拿起所有传入的URL就好了：

However, I cannot get it to route the .asmx's properly. This routing rule picks up all incoming urls just fine:

routes.Add("ClientSelector", new System.Web.Routing.Route
(
   "{client}/{*path}",
   routeHandler: new ClientRoute()
));

不过，我有处理的.asmx调用的问题。这里是我的IRouteHandler，下文。我得到的错误是：

But I am having issues with handling .asmx calls. Here's my IRouteHandler, below. The error I get is:

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.

这应该是JSON，但由于某种原因它不工作。我设置的内容类型 - 如果我没有送这个路由完全相同的要求，正常工作

It's supposed to be JSON, but for some reason it's not working. I am setting the content-type - if I send this same exact request without routing, it works fine.

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();
            }
        }
    }
}

相关链接：

• 获得ScriptHandlerFactory处理

• Getting ScriptHandlerFactory handler

推荐答案

我尽我所能，结束了失败，并WCF的.svc服务，而不是将我的所有Web服务。

I tried my best, ended up failing, and converted all my web services to WCF .svc services instead.

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