/// <summary>
/// Enables processing of the result of an action method by a custom type that inherits from the
/// <see cref="T:System.Web.Mvc.ActionResult" /> class.
/// </summary>
/// <param name="context">
/// The context in which the result is executed. The context information includes the controller,
/// HTTP content, request context, and route data.
/// </param>
public override void ExecuteResult(ControllerContext context)
{
var filePath = String.IsNullOrEmpty(this.VirtualBasePath)
? context.HttpContext.Request.MapPath(this.VirtualPath)
: context.HttpContext.Request.MapPath(this.VirtualPath, this.VirtualBasePath, false);
if (!String.IsNullOrEmpty(this.FileDownloadName))
{
context.HttpContext.Response.AddHeader(
"content-disposition",
"attachment; filename=" + this.FileDownloadName);
}
if (!String.IsNullOrEmpty(this.ContentType))
{
context.HttpContext.Response.ContentType = this.ContentType;
}
else
{
var extIndex = filePath.LastIndexOf('.');
if (extIndex > -1)
{
var fileExt = filePath.Substring(extIndex);
if (!string.IsNullOrEmpty(fileExt) && ExtensionMapper.Contains(fileExt))
{
context.HttpContext.Response.ContentType = ExtensionMapper.GetContentType(fileExt);
}
}
}
try
{
context.HttpContext.Response.TransmitFile(filePath);
context.HttpContext.Response.Cache.SetCacheability(HttpCacheability.Public);
context.HttpContext.Response.Cache.SetMaxAge(TimeSpan.FromHours(1));
}
catch (FileNotFoundException)
{
if (this.FallbackPaths.ContainsKey(context.HttpContext.Response.ContentType))
{
filePath =
context.HttpContext.Request.MapPath(
this.FallbackPaths[context.HttpContext.Response.ContentType]);
context.HttpContext.Response.TransmitFile(filePath);
}
}
catch (DirectoryNotFoundException)
{
if (this.FallbackPaths.ContainsKey(context.HttpContext.Response.ContentType))
{
filePath =
context.HttpContext.Request.MapPath(
this.FallbackPaths[context.HttpContext.Response.ContentType]);
context.HttpContext.Response.TransmitFile(filePath);
}
}
}
public override void ExecuteResult(ControllerContext context)
{
var filePath = this.ViewName;
var extIndex = filePath.LastIndexOf('.');
if (extIndex > -1)
{
var fileExt = filePath.Substring(extIndex);
if (!string.IsNullOrEmpty(fileExt) && ExtensionMapper.Contains(fileExt))
{
context.HttpContext.Response.ContentType = ExtensionMapper.GetContentType(fileExt);
}
}
base.ExecuteResult(context);
}