public virtual IHttpHandler GetHandler(HttpContext context, string requestType, string url, string pathTranslated)
{
//得到编译实例(通过反射)
PageHandlerFactory factory = (PageHandlerFactory)Activator.CreateInstance(typeof(PageHandlerFactory), true);
IHttpHandler handler = factory.GetHandler(context, requestType, url, pathTranslated);
//过滤字符串
if (requestType == "POST")
{
Page page = handler as Page;
if (page != null && !context.Request.Url.ToString().Contains("ManageMessage.aspx") && !context.Request.Url.ToString().Contains("SetAgreement.aspx") && !context.Request.Url.ToString().Contains("SetAgreement2.aspx"))
{
page.PreLoad += new EventHandler(FilterStrFactoryHandler_PreLoad);
}
}
if (requestType == "GET")
{
Page page = handler as Page;
if (page != null && !context.Request.Url.ToString().Contains("ManageMessage.aspx") && !context.Request.Url.ToString().Contains("SetAgreement.aspx") && !context.Request.Url.ToString().Contains("SetAgreement2.aspx"))
{
page.PreLoad += new EventHandler(FilterStrFactoryHandler_PreLoad1);
}
}
//返回
return(handler);
}
/// <summary>
/// 获取请求处理
/// </summary>
/// <param name="context"></param>
/// <param name="requestType"></param>
/// <param name="url"></param>
/// <param name="pathTranslated"></param>
/// <returns></returns>
public IHttpHandler GetHandler(HttpContext context, string requestType, string url, string pathTranslated)
{
//验证路径是否为请求普通资源
if (url.EndsWith(".aspx"))
{
PageHandlerFactory factory = (PageHandlerFactory)Activator.CreateInstance(typeof(PageHandlerFactory), true);
IHttpHandler handler = factory.GetHandler(context, requestType, url, pathTranslated);
return(handler);
}
else
{
string requestPath = context.Request.Path; //请求路径
string vPath = UrlHelper.GetRealVirtualPath(context); //去除虚拟目录后得到的请求路径
//尝试根据请求路径获取Action
InvokeInfo vkInfo = InitEngine.GetInvokeInfo(vPath);
if (vkInfo == null)
{
ExceptionHelper.Throw404Exception(context);
}
if (vkInfo.Action.Attr != null && !vkInfo.Action.Attr.AllowExecute(context.Request.HttpMethod)) //限定谓词
{
ExceptionHelper.Throw403Exception(context);
}
return(ActionHandler.CreateHandler(vkInfo));
}
}
public IHttpHandler GetHandler(HttpContext context, string requestType, string url, string pathTranslated)
{
PageHandlerFactory factory = (PageHandlerFactory)Activator.CreateInstance(typeof(PageHandlerFactory), true);
IHttpHandler handler = factory.GetHandler(context, requestType, url, pathTranslated);
//执行一些其它操作
Execute(handler);
return(handler);
}
public void ProcessRequest(HttpContext context)
{
//验证路径是否为请求普通资源
if (context.Request.RawUrl.EndsWith(".aspx"))
{
PageHandlerFactory factory = (PageHandlerFactory)Activator.CreateInstance(typeof(PageHandlerFactory), true);
IHttpHandler handler = factory.GetHandler(context, context.Request.RequestType, context.Request.Url.AbsolutePath, context.Request.PhysicalApplicationPath);
handler.ProcessRequest(context);
}
string requestPath = context.Request.Path; //请求路径
string vPath = UrlHelper.GetRealVirtualPath(context); //去除虚拟目录后得到的请求路径
//尝试根据请求路径获取Action
InvokeInfo vkInfo = InitEngine.GetInvokeInfo(vPath);
if (vkInfo == null)
{
HttpContext.Current.Response.StatusCode = 404;
HttpContext.Current.Response.Write("无法找到页面:" + context.Request.RawUrl);
}
else
{
string code = ValidateProcess(context, vkInfo);
switch (code)
{
case "200":
//执行aop
if (vkInfo.Controller.Injector != null)
{
vkInfo.Controller.ControllerContext = context;
vkInfo.Controller.Injector.OnControllerExecuting(vkInfo.Controller);
}
ActionHandler.CreateHandler(vkInfo).ProcessRequest(context);
break;
case "403":
HttpContext.Current.Response.StatusCode = 403;
HttpContext.Current.Response.Write("权限不足");
break;
case "404":
HttpContext.Current.Response.StatusCode = 404;
HttpContext.Current.Response.Write("无法找到页面:" + context.Request.RawUrl);
break;
default:
break;
}
}
}
public IHttpHandler GetHandler(HttpContext context, string requestType, string url, string pathTranslated)
{
PageHandlerFactory factory = (PageHandlerFactory)Activator.CreateInstance(typeof(PageHandlerFactory), true);
if (!IPAllowUtility.IpIsAllowed(context))
{
url = HttpContext.Current.Request.ApplicationPath + "error.aspx";
}
IHttpHandler handler;
if (-1 == url.IndexOf(".rar"))
{
handler = factory.GetHandler(context, requestType, url, pathTranslated);
}
else
{
handler = null;
}
return(handler);
}
/// <summary>
///
/// </summary>
/// <param name="target"></param>
/// <param name="feature"></param>
public override void Execute()
{
//if (this.Feature != null)
//{
// //不加这句表单样式有问题
// HttpContext.Current.Response.Write("<!DOCTYPE html>\n");
// HttpContext.Current.Response.Write(this.Feature.ToAdjustWindowScriptBlock(true));
// HttpContext.Current.Response.Flush();
//}
PageHandlerFactory factory = (PageHandlerFactory)Activator.CreateInstance(typeof(System.Web.UI.PageHandlerFactory), true);
Uri url = new Uri(HttpContext.Current.Request.Url, this.NavigateUrl);
IHttpHandler handler = factory.GetHandler(HttpContext.Current,
HttpContext.Current.Request.RequestType,
url.AbsolutePath, HttpContext.Current.Request.PhysicalApplicationPath);
if (handler is Page)
{
HttpContext.Current.Items["transferTarget"] = AppendCurrentRequestParams(this.NavigateUrl);
((Page)handler).PreRenderComplete += new EventHandler(TransferCommand_PreRenderComplete);
//add by zhouweihai 2008-09-02 页面加载PageModule
WebUtility.AttachPageModules((Page)handler);
}
StringBuilder strB = new StringBuilder(10240);
TextWriter tw = new StringWriter(strB);
HttpContext.Current.Server.Execute(handler, tw, true);
HttpContext.Current.Response.Write(tw.ToString());
HttpContext.Current.Response.End();
}
/// <summary />
/// <remarks>https://stackoverflow.com/questions/9930880/call-the-default-asp-net-httphandler-from-a-custom-handler</remarks>
public void ProcessRequest2(HttpContext context)
{
if (File.Exists(context.Request.MapPath(context.Request.FilePath)))
{
// the internal constructor doesn't do anything but prevent you from instantiating
// the factory, so we can skip it.
PageHandlerFactory factory =
(PageHandlerFactory)System.Runtime.Serialization.FormatterServices
.GetUninitializedObject(typeof(System.Web.UI.PageHandlerFactory));
string newTarget = "~/md_base.aspx";
string queryString = context.Request.QueryString.ToString();
// the 3rd parameter must be just the file name.
// the 4th parameter should be the physical path to the file, though it also
// works fine if you pass an empty string - perhaps that's only to override
// the usual presentation based on the path?
var handler = factory.GetHandler(context, "GET", newTarget,
context.Request.MapPath(newTarget));
// Update the context object as it should appear to your page/app, and
// assign your new handler.
// context.RewritePath(newTarget, "", queryString);
context.Handler = handler;
// .. and done
handler.ProcessRequest(context);
}
else
{
context.Response.StatusCode = 404;
context.Response.SuppressContent = true;
}
}
