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//------------------------------------------------------------------------------
// <copyright file="VirtualPathUtility.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
/*
* VirtualPathUtility class
*
* Copyright (c) 2004 Microsoft Corporation
*/
namespace System.Web {
using System.Web.Util;
using System.Security.Permissions;
/*
* Code to perform virtual path operations
*/
public static class VirtualPathUtility {
/* Discover virtual path type */
public static bool IsAbsolute(string virtualPath) {
VirtualPath virtualPathObject = VirtualPath.Create(virtualPath);
return !virtualPathObject.IsRelative && virtualPathObject.VirtualPathStringIfAvailable != null;
}
public static bool IsAppRelative(string virtualPath) {
VirtualPath virtualPathObject = VirtualPath.Create(virtualPath);
return virtualPathObject.VirtualPathStringIfAvailable == null;
}
/* Convert between virtual path types */
public static string ToAppRelative(string virtualPath) {
VirtualPath virtualPathObject = VirtualPath.CreateNonRelative(virtualPath);
return virtualPathObject.AppRelativeVirtualPathString;
}
public static string ToAppRelative(string virtualPath, string applicationPath) {
VirtualPath virtualPathObject = VirtualPath.CreateNonRelative(virtualPath);
// If it was already app relative, just return it
if (virtualPathObject.AppRelativeVirtualPathStringIfAvailable != null)
return virtualPathObject.AppRelativeVirtualPathStringIfAvailable;
VirtualPath appVirtualPath = VirtualPath.CreateAbsoluteTrailingSlash(applicationPath);
return UrlPath.MakeVirtualPathAppRelative(virtualPathObject.VirtualPathString,
appVirtualPath.VirtualPathString, true /*nullIfNotInApp*/);
}
public static string ToAbsolute(string virtualPath) {
VirtualPath virtualPathObject = VirtualPath.CreateNonRelative(virtualPath);
return virtualPathObject.VirtualPathString;
}
public static string ToAbsolute(string virtualPath, string applicationPath) {
VirtualPath virtualPathObject = VirtualPath.CreateNonRelative(virtualPath);
// If it was already absolute, just return it
if (virtualPathObject.VirtualPathStringIfAvailable != null)
return virtualPathObject.VirtualPathStringIfAvailable;
VirtualPath appVirtualPath = VirtualPath.CreateAbsoluteTrailingSlash(applicationPath);
return UrlPath.MakeVirtualPathAppAbsolute(virtualPathObject.AppRelativeVirtualPathString,
appVirtualPath.VirtualPathString);
}
/* Get pieces of virtual path */
public static string GetFileName(string virtualPath) {
VirtualPath virtualPathObject = VirtualPath.CreateNonRelative(virtualPath);
return virtualPathObject.FileName;
}
public static string GetDirectory(string virtualPath) {
VirtualPath virtualPathObject = VirtualPath.CreateNonRelative(virtualPath);
virtualPathObject = virtualPathObject.Parent;
if (virtualPathObject == null)
return null;
return virtualPathObject.VirtualPathStringWhicheverAvailable;
}
public static string GetExtension(string virtualPath) {
VirtualPath virtualPathObject = VirtualPath.Create(virtualPath);
return virtualPathObject.Extension;
}
/* Canonicalize virtual paths */
public static string AppendTrailingSlash(string virtualPath) {
return UrlPath.AppendSlashToPathIfNeeded(virtualPath);
}
public static string RemoveTrailingSlash(string virtualPath) {
return UrlPath.RemoveSlashFromPathIfNeeded(virtualPath);
}
// Removing Reduce per DevDiv 43118
#if OLD
public static string Reduce(string virtualPath) {
VirtualPath virtualPathObject = VirtualPath.CreateNonRelative(virtualPath);
return virtualPathObject.VirtualPathString;
}
#endif
/* Work with multiple virtual paths */
public static string Combine(string basePath, string relativePath) {
VirtualPath virtualPath = VirtualPath.Combine(VirtualPath.CreateNonRelative(basePath),
VirtualPath.Create(relativePath));
return virtualPath.VirtualPathStringWhicheverAvailable;
}
public static string MakeRelative(string fromPath, string toPath) {
return UrlPath.MakeRelative(fromPath, toPath);
}
}
}
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