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/* ****************************************************************************
*
* Copyright (c) Microsoft Corporation. All rights reserved.
*
* This software is subject to the Microsoft Public License (Ms-PL).
* A copy of the license can be found in the license.htm file included
* in this distribution.
*
* You must not remove this notice, or any other, from this software.
*
* ***************************************************************************/
namespace System.Web.Mvc {
using System.Diagnostics.CodeAnalysis;
using System.Net;
using System.Web;
public class WebFormViewEngine : VirtualPathProviderViewEngine {
private IBuildManager _buildManager;
public WebFormViewEngine() {
MasterLocationFormats = new[] {
"~/Views/{1}/{0}.master",
"~/Views/Shared/{0}.master"
};
AreaMasterLocationFormats = new[] {
"~/Areas/{2}/Views/{1}/{0}.master",
"~/Areas/{2}/Views/Shared/{0}.master",
};
ViewLocationFormats = new[] {
"~/Views/{1}/{0}.aspx",
"~/Views/{1}/{0}.ascx",
"~/Views/Shared/{0}.aspx",
"~/Views/Shared/{0}.ascx"
};
AreaViewLocationFormats = new[] {
"~/Areas/{2}/Views/{1}/{0}.aspx",
"~/Areas/{2}/Views/{1}/{0}.ascx",
"~/Areas/{2}/Views/Shared/{0}.aspx",
"~/Areas/{2}/Views/Shared/{0}.ascx",
};
PartialViewLocationFormats = ViewLocationFormats;
AreaPartialViewLocationFormats = AreaViewLocationFormats;
}
internal IBuildManager BuildManager {
get {
if (_buildManager == null) {
_buildManager = new BuildManagerWrapper();
}
return _buildManager;
}
set {
_buildManager = value;
}
}
protected override IView CreatePartialView(ControllerContext controllerContext, string partialPath) {
return new WebFormView(partialPath, null);
}
protected override IView CreateView(ControllerContext controllerContext, string viewPath, string masterPath) {
return new WebFormView(viewPath, masterPath);
}
[SuppressMessage("Microsoft.Design", "CA1031:DoNotCatchGeneralExceptionTypes",
Justification = "Exceptions are interpreted as indicating that the file does not exist.")]
protected override bool FileExists(ControllerContext controllerContext, string virtualPath) {
try {
object viewInstance = BuildManager.CreateInstanceFromVirtualPath(virtualPath, typeof(object));
return viewInstance != null;
}
catch (HttpException he) {
if (he is HttpParseException) {
// The build manager found something, but instantiation failed due to a runtime lookup failure
throw;
}
if (he.GetHttpCode() == (int)HttpStatusCode.NotFound) {
// If BuildManager returns a 404 (Not Found) that means that a file did not exist.
// If the view itself doesn't exist, then this method should report that rather than throw an exception.
if (!base.FileExists(controllerContext, virtualPath)) {
return false;
}
}
// All other error codes imply other errors such as compilation or parsing errors
throw;
}
}
}
}
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