private static void InternalDelete(String fullPath, String userPath, bool recursive)
{
String demandPath;
// If not recursive, do permission check only on this directory
// else check for the whole directory structure rooted below
demandPath = GetDemandDir(fullPath, !recursive);
// Make sure we have write permission to this directory
new FileIOPermission(FileIOPermissionAccess.Write, new String[] { demandPath }, false, false).Demand();
String longPath = Path.AddLongPathPrefix(fullPath);
// 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.
Win32Native.WIN32_FILE_ATTRIBUTE_DATA data = new Win32Native.WIN32_FILE_ATTRIBUTE_DATA();
int dataInitialised = File.FillAttributeInfo(longPath, ref data, false, true);
if (dataInitialised != 0)
{
// Ensure we throw a DirectoryNotFoundException.
if (dataInitialised == Win32Native.ERROR_FILE_NOT_FOUND)
dataInitialised = Win32Native.ERROR_PATH_NOT_FOUND;
__Error.WinIOError(dataInitialised, fullPath);
}
if (((FileAttributes)data.fileAttributes & FileAttributes.ReparsePoint) != 0)
recursive = false;
DeleteHelper(longPath, userPath, recursive);
}
internal static DateTimeOffset GetLastWriteTime(String path)
{
Contract.Requires(path != null);
String fullPath = LongPath.NormalizePath(path);
new FileIOPermission(FileIOPermissionAccess.Read, new String[] { fullPath }, false, false ).Demand();
String tempPath = Path.AddLongPathPrefix(fullPath);
Win32Native.WIN32_FILE_ATTRIBUTE_DATA data = new Win32Native.WIN32_FILE_ATTRIBUTE_DATA();
int dataInitialised = File.FillAttributeInfo(tempPath, ref data, false, false);
if (dataInitialised != 0)
__Error.WinIOError(dataInitialised, fullPath);
long dt = ((long)data.ftLastWriteTimeHigh << 32) | ((long)data.ftLastWriteTimeLow);
DateTime dtLocal = DateTime.FromFileTimeUtc(dt).ToLocalTime();
return new DateTimeOffset(dtLocal).ToLocalTime();
}
internal static long GetLength(String path)
{
Contract.Requires(path != null);
String fullPath = LongPath.NormalizePath(path);
new FileIOPermission(FileIOPermissionAccess.Read, new String[] { fullPath }, false, false ).Demand();
String tempPath = Path.AddLongPathPrefix(fullPath);
Win32Native.WIN32_FILE_ATTRIBUTE_DATA data = new Win32Native.WIN32_FILE_ATTRIBUTE_DATA();
int dataInitialised = File.FillAttributeInfo(tempPath, ref data, false, true); // return error
if (dataInitialised != 0)
__Error.WinIOError(dataInitialised, path); // from FileInfo.
if ((data.fileAttributes & Win32Native.FILE_ATTRIBUTE_DIRECTORY) != 0)
__Error.WinIOError(Win32Native.ERROR_FILE_NOT_FOUND, path);
return ((long)data.fileSizeHigh) << 32 | ((long)data.fileSizeLow & 0xFFFFFFFFL);
}
public static DateTime GetLastWriteTimeUtc(String path)
{
String fullPath = Path.GetFullPathInternal(path);
new FileIOPermission(FileIOPermissionAccess.Read, new String[] { fullPath }, false, false ).Demand();
Win32Native.WIN32_FILE_ATTRIBUTE_DATA data = new Win32Native.WIN32_FILE_ATTRIBUTE_DATA();
int dataInitialised = FillAttributeInfo(fullPath, ref data, false, false);
if (dataInitialised != 0)
__Error.WinIOError(dataInitialised, fullPath);
long dt = ((long)data.ftLastWriteTimeHigh << 32) | ((long)data.ftLastWriteTimeLow);
return DateTime.FromFileTimeUtc(dt);
}
public static FileAttributes GetAttributes(String path)
{
String fullPath = Path.GetFullPathInternal(path);
new FileIOPermission(FileIOPermissionAccess.Read, new String[] { fullPath }, false, false).Demand();
Win32Native.WIN32_FILE_ATTRIBUTE_DATA data = new Win32Native.WIN32_FILE_ATTRIBUTE_DATA();
int dataInitialised = FillAttributeInfo(fullPath, ref data, false, true);
if (dataInitialised != 0)
__Error.WinIOError(dataInitialised, fullPath);
return (FileAttributes) data.fileAttributes;
}
public static FileAttributes GetAttributes(String path)
{
String fullPath = Path.GetFullPathInternal(path);
#if FEATURE_CORECLR
FileSecurityState state = new FileSecurityState(FileSecurityStateAccess.Read, path, fullPath);
state.EnsureState();
#else
FileIOPermission.QuickDemand(FileIOPermissionAccess.Read, fullPath, false, false);
#endif
Win32Native.WIN32_FILE_ATTRIBUTE_DATA data = new Win32Native.WIN32_FILE_ATTRIBUTE_DATA();
int dataInitialised = FillAttributeInfo(fullPath, ref data, false, true);
if (dataInitialised != 0)
__Error.WinIOError(dataInitialised, fullPath);
return (FileAttributes) data.fileAttributes;
}
internal static bool InternalExists(String path) {
Win32Native.WIN32_FILE_ATTRIBUTE_DATA data = new Win32Native.WIN32_FILE_ATTRIBUTE_DATA();
int dataInitialised = FillAttributeInfo(path, ref data, false, true);
return (dataInitialised == 0) && (data.fileAttributes != -1)
&& ((data.fileAttributes & Win32Native.FILE_ATTRIBUTE_DIRECTORY) == 0);
}
private static DateTime InternalGetLastWriteTimeUtc(String path, bool checkHost)
{
String fullPath = Path.GetFullPathInternal(path);
#if FEATURE_CORECLR
if (checkHost)
{
FileSecurityState state = new FileSecurityState(FileSecurityStateAccess.Read, path, fullPath);
state.EnsureState();
}
#else
FileIOPermission.QuickDemand(FileIOPermissionAccess.Read, fullPath, false, false);
#endif
Win32Native.WIN32_FILE_ATTRIBUTE_DATA data = new Win32Native.WIN32_FILE_ATTRIBUTE_DATA();
int dataInitialised = FillAttributeInfo(fullPath, ref data, false, false);
if (dataInitialised != 0)
__Error.WinIOError(dataInitialised, fullPath);
long dt = ((long)data.ftLastWriteTimeHigh << 32) | ((long)data.ftLastWriteTimeLow);
return DateTime.FromFileTimeUtc(dt);
}
private static DateTime InternalGetCreationTimeUtc(String path, bool checkHost)
{
String fullPath = Path.GetFullPathInternal(path);
#if FEATURE_CORECLR && !FEATURE_LEGACYNETCFIOSECURITY
if (checkHost)
{
FileSecurityState state = new FileSecurityState(FileSecurityStateAccess.Read, path, fullPath);
state.EnsureState();
}
#elif !FEATURE_CORECLR
new FileIOPermission(FileIOPermissionAccess.Read, new String[] { fullPath }, false, false ).Demand();
#endif
Win32Native.WIN32_FILE_ATTRIBUTE_DATA data = new Win32Native.WIN32_FILE_ATTRIBUTE_DATA();
int dataInitialised = FillAttributeInfo(fullPath, ref data, false, false);
if (dataInitialised != 0)
__Error.WinIOError(dataInitialised, fullPath);
long dt = ((long)(data.ftCreationTimeHigh) << 32) | ((long)data.ftCreationTimeLow);
return DateTime.FromFileTimeUtc(dt);
}
public static FileAttributes GetAttributes(String path)
{
String fullPath = Path.GetFullPath(path);
Win32Native.WIN32_FILE_ATTRIBUTE_DATA data = new Win32Native.WIN32_FILE_ATTRIBUTE_DATA();
int dataInitialised = FillAttributeInfo(fullPath, ref data, false, true);
if (dataInitialised != 0)
__Error.WinIOError(dataInitialised, fullPath);
return (FileAttributes) data.fileAttributes;
}
private static DateTime InternalGetLastWriteTimeUtc(String path)
{
String fullPath = Path.GetFullPath(path);
Win32Native.WIN32_FILE_ATTRIBUTE_DATA data = new Win32Native.WIN32_FILE_ATTRIBUTE_DATA();
int dataInitialised = FillAttributeInfo(fullPath, ref data, false, false);
if (dataInitialised != 0)
__Error.WinIOError(dataInitialised, fullPath);
long dt = ((long)data.ftLastWriteTimeHigh << 32) | ((long)data.ftLastWriteTimeLow);
return DateTime.FromFileTimeUtc(dt);
}
/// <include file='doc\File.uex' path='docs/doc[@for="File.GetLastWriteTime"]/*' />
public static DateTime GetLastWriteTime(String path)
{
String fullPath = Path.GetFullPathInternal(path);
new FileIOPermission(FileIOPermissionAccess.Read, new String[] { fullPath }, false, false ).Demand();
Win32Native.WIN32_FILE_ATTRIBUTE_DATA data = new Win32Native.WIN32_FILE_ATTRIBUTE_DATA();
int dataInitialised = FillAttributeInfo(fullPath,ref data,false);
if (dataInitialised != 0)
__Error.WinIOError(dataInitialised, path);
if (data.fileAttributes == -1)
throw new IOException(String.Format(Environment.GetResourceString("IO.PathNotFound_Path"), path));
long dt = ((long)data.ftLastWriteTimeHigh << 32) | ((long)data.ftLastWriteTimeLow);
return DateTime.FromFileTime(dt);
}
