internal static void InternalDelete(String path, bool checkHost)
{
String fullPath = Path.GetFullPath(path);
if (checkHost)
{
FileSecurityState state = new FileSecurityState(FileSecurityStateAccess.Write, path, fullPath);
state.EnsureState();
}
bool r = Win32Native.DeleteFile(fullPath);
if (!r)
{
int hr = Marshal.GetLastWin32Error();
if (hr == Win32Native.ERROR_FILE_NOT_FOUND)
{
return;
}
else
{
__Error.WinIOError(hr, fullPath);
}
}
}
// Deletes a file. The file specified by the designated path is deleted.
// If the file does not exist, Delete succeeds without throwing
// an exception.
//
// On NT, Delete will fail for a file that is open for normal I/O
// or a file that is memory mapped. On Win95, the file will be
// deleted irregardless of whether the file is being used.
//
// Your application must have Delete permission to the target file.
//
/// <include file='doc\File.uex' path='docs/doc[@for="File.Delete"]/*' />
public static void Delete(String path)
{
if (path == null)
{
throw new ArgumentNullException("path");
}
String fullPath = Path.GetFullPathInternal(path);
// For security check, path should be resolved to an absolute path.
new FileIOPermission(FileIOPermissionAccess.Write, new String[] { fullPath }, false, false).Demand();
if (Directory.InternalExists(fullPath)) // Win9x hack to behave same as Winnt. Win9x fails silently for directories
{
throw new UnauthorizedAccessException(String.Format(Environment.GetResourceString("UnauthorizedAccess_IODenied_Path"), path));
}
bool r = Win32Native.DeleteFile(fullPath);
if (!r)
{
int hr = Marshal.GetLastWin32Error();
if (hr == Win32Native.ERROR_FILE_NOT_FOUND)
{
return;
}
else
{
__Error.WinIOError(hr, path);
}
}
}
internal static void Delete(String path)
{
Contract.Requires(path != null);
String fullPath = LongPath.NormalizePath(path);
// For security check, path should be resolved to an absolute path.
new FileIOPermission(FileIOPermissionAccess.Write, new String[] { fullPath }, false, false).Demand();
String tempPath = Path.AddLongPathPrefix(fullPath);
bool r = Win32Native.DeleteFile(tempPath);
if (!r)
{
int hr = Marshal.GetLastWin32Error();
if (hr == Win32Native.ERROR_FILE_NOT_FOUND)
{
return;
}
else
{
__Error.WinIOError(hr, fullPath);
}
}
}
// Deletes a file. The file specified by the designated path is deleted.
// If the file does not exist, Delete succeeds without throwing
// an exception.
//
// On NT, Delete will fail for a file that is open for normal I/O
// or a file that is memory mapped. On Win95, the file will be
// deleted irregardless of whether the file is being used.
//
// Your application must have Delete permission to the target file.
//
/// <include file='doc\FileInfo.uex' path='docs/doc[@for="FileInfo.Delete"]/*' />
public override void Delete()
{
// For security check, path should be resolved to an absolute path.
new FileIOPermission(FileIOPermissionAccess.Write, new String[] { FullPath }, false, false).Demand();
if (System.IO.Directory.InternalExists(FullPath)) // Win9x hack to behave same as Winnt. Win9x fails silently for directories
{
throw new UnauthorizedAccessException(String.Format(Environment.GetResourceString("UnauthorizedAccess_IODenied_Path"), OriginalPath));
}
bool r = Win32Native.DeleteFile(FullPath);
if (!r)
{
int hr = Marshal.GetLastWin32Error();
if (hr == Win32Native.ERROR_FILE_NOT_FOUND)
{
return;
}
else
{
__Error.WinIOError(hr, OriginalPath);
}
}
}
// Deletes a file. The file specified by the designated path is deleted.
// If the file does not exist, Delete succeeds without throwing
// an exception.
//
// On NT, Delete will fail for a file that is open for normal I/O
// or a file that is memory mapped.
public override void Delete()
{
bool r = Win32Native.DeleteFile(FullPath);
if (!r)
{
int hr = Marshal.GetLastWin32Error();
if (hr == Win32Native.ERROR_FILE_NOT_FOUND)
{
return;
}
else
{
__Error.WinIOError(hr, DisplayPath);
}
}
}
internal static void InternalDelete(String path)
{
String fullPath = Path.GetFullPath(path);
bool r = Win32Native.DeleteFile(fullPath);
if (!r)
{
int hr = Marshal.GetLastWin32Error();
if (hr == Win32Native.ERROR_FILE_NOT_FOUND)
{
return;
}
else
{
__Error.WinIOError(hr, fullPath);
}
}
}
public override void Delete()
{
FileSecurityState state = new FileSecurityState(FileSecurityStateAccess.Write, DisplayPath, FullPath);
state.EnsureState();
bool r = Win32Native.DeleteFile(FullPath);
if (!r)
{
int hr = Marshal.GetLastWin32Error();
if (hr == Win32Native.ERROR_FILE_NOT_FOUND)
{
return;
}
else
{
__Error.WinIOError(hr, DisplayPath);
}
}
}
public override void Delete()
{
#if FEATURE_MONO_CAS
#if FEATURE_CORECLR
FileSecurityState state = new FileSecurityState(FileSecurityStateAccess.Write, DisplayPath, FullPath);
state.EnsureState();
#else
// For security check, path should be resolved to an absolute path.
FileIOPermission.QuickDemand(FileIOPermissionAccess.Write, FullPath, false, false);
#endif
#endif
#if MONO
MonoIOError error;
if (MonoIO.ExistsDirectory(FullPath, out error))
{
__Error.WinIOError(Win32Native.ERROR_ACCESS_DENIED, DisplayPath);
}
if (!MonoIO.DeleteFile(FullPath, out error))
{
int hr = (int)error;
#else
bool r = Win32Native.DeleteFile(FullPath);
if (!r)
{
int hr = Marshal.GetLastWin32Error();
#endif
if (hr == Win32Native.ERROR_FILE_NOT_FOUND)
{
return;
}
else
{
__Error.WinIOError(hr, DisplayPath);
}
}
}
public override void Delete()
{
#if FEATURE_CORECLR
FileSecurityState state = new FileSecurityState(FileSecurityStateAccess.Write, DisplayPath, FullPath);
state.EnsureState();
#else
// For security check, path should be resolved to an absolute path.
new FileIOPermission(FileIOPermissionAccess.Write, new String[] { FullPath }, false, false).Demand();
#endif
bool r = Win32Native.DeleteFile(FullPath);
if (!r)
{
int hr = Marshal.GetLastWin32Error();
if (hr == Win32Native.ERROR_FILE_NOT_FOUND)
{
return;
}
else
{
__Error.WinIOError(hr, DisplayPath);
}
}
}
private static void DeleteHelper(String fullPath, String userPath, bool recursive, bool throwOnTopLevelDirectoryNotFound)
{
bool r;
int hr;
Exception ex = null;
// Do not recursively delete through reparse points. Perhaps in a
// future version we will add a new flag to control this behavior,
// but for now we're much safer if we err on the conservative side.
// This applies to symbolic links and mount points.
// Note the logic to check whether fullPath is a reparse point is
// in Delete(String, String, bool), and will set "recursive" to false.
// Note that Win32's DeleteFile and RemoveDirectory will just delete
// the reparse point itself.
if (recursive)
{
Win32Native.WIN32_FIND_DATA data = new Win32Native.WIN32_FIND_DATA();
String searchPath = null;
if (fullPath.EndsWith(Path.DirectorySeparatorChar.ToString(), StringComparison.Ordinal))
{
searchPath = fullPath + "*";
}
else
{
searchPath = fullPath + Path.DirectorySeparatorChar + "*";
}
// Open a Find handle
using (SafeFindHandle hnd = Win32Native.FindFirstFile(searchPath, data))
{
if (hnd.IsInvalid)
{
hr = Marshal.GetLastWin32Error();
__Error.WinIOError(hr, userPath);
}
do
{
bool isDir = (0 != (data.dwFileAttributes & Win32Native.FILE_ATTRIBUTE_DIRECTORY));
if (isDir)
{
// Skip ".", "..".
if (data.cFileName.Equals(".") || data.cFileName.Equals(".."))
{
continue;
}
// Recurse for all directories, unless they are
// reparse points. Do not follow mount points nor
// symbolic links, but do delete the reparse point
// itself.
bool shouldRecurse = (0 == (data.dwFileAttributes & (int)FileAttributes.ReparsePoint));
if (shouldRecurse)
{
String newFullPath = LongPath.InternalCombine(fullPath, data.cFileName);
String newUserPath = LongPath.InternalCombine(userPath, data.cFileName);
try
{
DeleteHelper(newFullPath, newUserPath, recursive, false);
}
catch (Exception e)
{
if (ex == null)
{
ex = e;
}
}
}
else
{
// Check to see if this is a mount point, and
// unmount it.
if (data.dwReserved0 == Win32Native.IO_REPARSE_TAG_MOUNT_POINT)
{
// Use full path plus a trailing '\'
String mountPoint = LongPath.InternalCombine(fullPath, data.cFileName + Path.DirectorySeparatorChar);
r = Win32Native.DeleteVolumeMountPoint(mountPoint);
if (!r)
{
hr = Marshal.GetLastWin32Error();
if (hr != Win32Native.ERROR_PATH_NOT_FOUND)
{
try
{
__Error.WinIOError(hr, data.cFileName);
}
catch (Exception e)
{
if (ex == null)
{
ex = e;
}
}
}
}
}
// RemoveDirectory on a symbolic link will
// remove the link itself.
String reparsePoint = LongPath.InternalCombine(fullPath, data.cFileName);
r = Win32Native.RemoveDirectory(reparsePoint);
if (!r)
{
hr = Marshal.GetLastWin32Error();
if (hr != Win32Native.ERROR_PATH_NOT_FOUND)
{
try
{
__Error.WinIOError(hr, data.cFileName);
}
catch (Exception e)
{
if (ex == null)
{
ex = e;
}
}
}
}
}
}
else
{
String fileName = LongPath.InternalCombine(fullPath, data.cFileName);
r = Win32Native.DeleteFile(fileName);
if (!r)
{
hr = Marshal.GetLastWin32Error();
if (hr != Win32Native.ERROR_FILE_NOT_FOUND)
{
try
{
__Error.WinIOError(hr, data.cFileName);
}
catch (Exception e)
{
if (ex == null)
{
ex = e;
}
}
}
}
}
} while (Win32Native.FindNextFile(hnd, data));
// Make sure we quit with a sensible error.
hr = Marshal.GetLastWin32Error();
}
if (ex != null)
{
throw ex;
}
if (hr != 0 && hr != Win32Native.ERROR_NO_MORE_FILES)
{
__Error.WinIOError(hr, userPath);
}
}
r = Win32Native.RemoveDirectory(fullPath);
if (!r)
{
hr = Marshal.GetLastWin32Error();
if (hr == Win32Native.ERROR_FILE_NOT_FOUND) // A dubious error code.
{
hr = Win32Native.ERROR_PATH_NOT_FOUND;
}
// This check was originally put in for Win9x (unfortunately without special casing it to be for Win9x only). We can't change the NT codepath now for backcomp reasons.
if (hr == Win32Native.ERROR_ACCESS_DENIED)
{
throw new IOException(Environment.GetResourceString("UnauthorizedAccess_IODenied_Path", userPath));
}
// don't throw the DirectoryNotFoundException since this is a subdir and there could be a ----
// between two Directory.Delete callers
if (hr == Win32Native.ERROR_PATH_NOT_FOUND && !throwOnTopLevelDirectoryNotFound)
{
return;
}
__Error.WinIOError(hr, userPath);
}
}
