使用HttpHandlerFactory呈现CMS和物理页面

我正在写一个CMS系统,在阅读和处理了几个例子之后,我已经确定了 HttpHandlerFactory 去完成我需要的。

关键是我们的网站通常是复制和注册的混合过程。因此,我目前需要使用默认的HttpHandler for aspx来呈现物理注册页,直到我也能找到一种内容管理方法。

在创建处理程序类之后,我将以下内容添加到我的网站的web配置中

<add verb="*" path="*.aspx" type="Web.Helpers.HttpCMSHandlerFactory, Web.Helpers"/>

由于上面的路径处理物理和cms驱动的页面,只需在代码中进行一个小检查,我就可以看到页面是否实际存在,然后就可以呈现所需的页面。

    public IHttpHandler GetHandler(HttpContext context, string requestType, string url, string pathTranslated)
    {
        string pageName = Path.GetFileNameWithoutExtension(context.Request.PhysicalPath);
        context.Items.Add("PageName", pageName);
        //DirectoryInfo di = new DirectoryInfo(context.Request.MapPath(context.Request.ApplicationPath));
        FileInfo fi = new FileInfo(context.Request.MapPath(context.Request.CurrentExecutionFilePath));
        //var file = fi.Where(x => string.Equals(x.Name, string.Concat(pageName, ".aspx"), StringComparison.InvariantCultureIgnoreCase)).SingleOrDefault();
        if (fi.Exists == false)
        {
           // think I had this the wrong way around, the url should come first with the renderer page second
            return PageParser.GetCompiledPageInstance(url, context.Server.MapPath("~/CMSPage.aspx"), context);
        }
        else
        {
            return PageParser.GetCompiledPageInstance(context.Request.CurrentExecutionFilePath, fi.FullName, context);
        }
    }

PageParser.GetCompiledPageInstance

        byte[] image = null;
        if (File.Exists(context.Request.PhysicalPath))
        {
            FileStream fs = new FileStream(context.Request.PhysicalPath, FileMode.Open, FileAccess.Read);
            BinaryReader br = new BinaryReader(fs);

            image = br.ReadBytes((int)fs.Length);
        }
        else
        {
            IKernel kernel = new StandardKernel(new ServiceModule());
            var cmsImageService = kernel.Get<IContentManagementService>();
            var framework = FrameworkSetup.GetSetFrameworkSettings();
            image = cmsImageService.GetImage(Path.GetFileName(context.Request.PhysicalPath), framework.EventId);
        }

        var contextType = "image/jpg";
        var format = ImageFormat.Jpeg;

        switch (Path.GetExtension(context.Request.PhysicalPath).ToLower())
        {
            case ".gif":
                contextType = "image/gif";
                format = ImageFormat.Gif;
                goto default;
            case ".jpeg":
            case ".jpg":
                contextType = "image/jpeg";
                format = ImageFormat.Jpeg;
                goto default;
            case ".png":
                contextType = "image/png";
                format = ImageFormat.Png;
                goto default;
            default:
                context.Cache.Insert(context.Request.PhysicalPath, image);
                context.Response.ContentType = contextType;
                context.Response.BinaryWrite(image);
                context.Response.Flush();
                break;
        }