[System.Security.SecurityCritical] // auto-generated
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();
// Open a Find handle
using (SafeFindHandle hnd = Win32Native.FindFirstFile(fullPath+Path.DirectorySeparatorCharAsString+"*", data)) {
if (hnd.IsInvalid) {
hr = Marshal.GetLastWin32Error();
__Error.WinIOError(hr, fullPath);
}
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 = Path.InternalCombine(fullPath, data.cFileName);
String newUserPath = Path.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 = Path.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 = Path.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 = Path.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 race condition
// between two Directory.Delete callers
if (hr == Win32Native.ERROR_PATH_NOT_FOUND && !throwOnTopLevelDirectoryNotFound)
return;
__Error.WinIOError(hr, fullPath);
}
}
internal static extern SafeFindHandle FindFirstFile(String fileName, [In, Out] Win32Native.WIN32_FIND_DATA data);
/// <include file='doc\Directory.uex' path='docs/doc[@for="Directory.Delete1"]/*' />
public static void Delete(String path, bool recursive)
{
String fullPath = Path.GetFullPathInternal(path);
String demandPath;
if (!recursive) { // Do normal check only on this directory
if (fullPath.EndsWith( Path.DirectorySeparatorChar ))
demandPath = fullPath + ".";
else
demandPath = fullPath + Path.DirectorySeparatorChar + ".";
}
else { // Check for deny anywhere below and fail
if (fullPath.EndsWith( Path.DirectorySeparatorChar ))
demandPath = fullPath.Substring(0,fullPath.Length - 1);
else
demandPath = fullPath;
}
// Make sure we have write permission to this directory
new FileIOPermission(FileIOPermissionAccess.Write, new String[] { demandPath }, false, false ).Demand();
bool r;
int hr;
Exception ex = null;
if (recursive) {
Win32Native.WIN32_FIND_DATA data = new Win32Native.WIN32_FIND_DATA();
// Open a Find handle (Win32 is weird)
IntPtr hnd = Win32Native.FindFirstFile(fullPath+Path.DirectorySeparatorChar+"*", data);
if (hnd==Win32Native.INVALID_HANDLE_VALUE) {
hr = Marshal.GetLastWin32Error();
__Error.WinIOError(hr, path);
}
do {
bool isDir = (0!=(data.dwFileAttributes & Win32Native.FILE_ATTRIBUTE_DIRECTORY));
if (isDir) {
if (data.cFileName.Equals(".") || data.cFileName.Equals(".."))
continue;
// recurse
DirectoryInfo d = new DirectoryInfo(Path.InternalCombine(fullPath, data.cFileName), false);
try {
d.Delete(true);
}
catch(Exception e) {
if (ex == null) {
ex = e;
}
}
}
else {
String fileName = path + Path.DirectorySeparatorChar + data.cFileName;
r = Win32Native.DeleteFile(fileName);
if (!r) {
hr = Marshal.GetLastWin32Error();
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();
Win32Native.FindClose(hnd); // Close Find handle in all cases.
if (ex != null)
throw ex;
if (hr!=0 && hr!=Win32Native.ERROR_NO_MORE_FILES) __Error.WinIOError(hr, path);
}
r = Win32Native.RemoveDirectory(fullPath);
hr = Marshal.GetLastWin32Error();
if (hr == Win32Native.ERROR_FILE_NOT_FOUND) // Win32 is weird, it gives back a file not found
hr = Win32Native.ERROR_PATH_NOT_FOUND;
if (hr == Win32Native.ERROR_ACCESS_DENIED) // WinNT throws IOException. Win9x hack to do the same.
throw new IOException(String.Format(Environment.GetResourceString("UnauthorizedAccess_IODenied_Path"), path));
if (!r) __Error.WinIOError(hr, path);
}
// From IO.Directory class (make that internal if possible)
private static String[] GetFileDirectoryNames(String path, String msg, bool file)
{
int hr;
if (path==null) throw new ArgumentNullException("path", Environment.GetResourceString("ArgumentNull_Path"));
bool fEndsWithDirectory = false;
char lastChar = path[path.Length-1];
if (lastChar == Path.DirectorySeparatorChar ||
lastChar == Path.AltDirectorySeparatorChar ||
lastChar == '.')
fEndsWithDirectory = true;
// Get an absolute path and do a security check
String fullPath = Path.GetFullPathInternal(path);
// GetFullPath() removes '\', "\." etc from path, we will restore
// it here. If path ends in a trailing slash (\), append a *
// or we'll get a "Cannot find the file specified" exception
if ((fEndsWithDirectory) &&
(fullPath[fullPath.Length - 1] != lastChar))
fullPath += "\\*";
// Check for read permission to the directory, not to the contents.
String dir = Path.GetDirectoryName(fullPath);
if (dir != null)
dir += "\\";
#if _DEBUG
if (s_fDebug)
{
Console.WriteLine("path = " + path);
Console.WriteLine("fullPath = " + fullPath);
Console.WriteLine("dir = " + dir);
}
#endif
new FileIOPermission(FileIOPermissionAccess.Read, dir == null ? fullPath : dir).Demand();
String[] list = new String[10];
int listSize = 0;
Win32Native.WIN32_FIND_DATA data = new Win32Native.WIN32_FIND_DATA();
// Open a Find handle (Win32 is weird)
IntPtr hnd = Win32Native.FindFirstFile(fullPath, data);
if (hnd==Win32Native.INVALID_HANDLE_VALUE) {
// Calls to GetLastWin32Error clobber HResult. Store HResult.
hr = Marshal.GetLastWin32Error();
if (hr==Win32Native.ERROR_FILE_NOT_FOUND)
return new String[0];
__Error.WinIOError(hr, msg);
}
// Keep asking for more matching files, adding file names to list
int numEntries = 0; // Number of directory entities we see.
do {
bool includeThis; // Should this file/directory be included in the output?
if (file)
includeThis = (0==(data.dwFileAttributes & Win32Native.FILE_ATTRIBUTE_DIRECTORY));
else {
includeThis = (0!=(data.dwFileAttributes & Win32Native.FILE_ATTRIBUTE_DIRECTORY));
// Don't add "." nor ".."
if (includeThis && (data.cFileName.Equals(".") || data.cFileName.Equals("..")))
includeThis = false;
}
if (includeThis) {
numEntries++;
if (listSize==list.Length) {
String[] newList = new String[list.Length*2];
Array.Copy(list, 0, newList, 0, listSize);
list = newList;
}
list[listSize++] = data.cFileName;
}
} while (Win32Native.FindNextFile(hnd, data));
// Make sure we quit with a sensible error.
hr = Marshal.GetLastWin32Error();
Win32Native.FindClose(hnd); // Close Find handle in all cases.
if (hr!=0 && hr!=Win32Native.ERROR_NO_MORE_FILES) __Error.WinIOError(hr, msg);
// Check for a string such as "C:\tmp", in which case we return
// just the directory name. FindNextFile fails first time, and
// data still contains a directory.
if (!file && numEntries==1 && (0!=(data.dwFileAttributes & Win32Native.FILE_ATTRIBUTE_DIRECTORY))) {
String[] sa = new String[1];
sa[0] = data.cFileName;
return sa;
}
// Return list of files/directories as an array of strings
if (listSize == list.Length)
return list;
String[] items = new String[listSize];
Array.Copy(list, 0, items, 0, listSize);
return items;
}
[System.Security.SecurityCritical] // auto-generated
#endif
private static String[] GetFileDirectoryNames(String path, String msg, bool file, IsolatedStorageFile isf) {
int hr;
if(path == null) throw new ArgumentNullException("path", Environment.GetResourceString("ArgumentNull_Path"));
Contract.EndContractBlock();
bool fEndsWithDirectory = false;
char lastChar = path[path.Length - 1];
if(lastChar == Path.DirectorySeparatorChar ||
lastChar == Path.AltDirectorySeparatorChar ||
lastChar == '.')
fEndsWithDirectory = true;
// Get an absolute path and do a security check
String fullPath = Path.GetFullPathInternal(path);
// GetFullPath() removes '\', "\." etc from path, we will restore
// it here. If path ends in a trailing slash (\), append a *
// or we'll get a "Cannot find the file specified" exception
if((fEndsWithDirectory) &&
(fullPath[fullPath.Length - 1] != lastChar))
fullPath += "\\*";
// Check for read permission to the directory, not to the contents.
String dir = Path.GetDirectoryName(fullPath);
if(dir != null)
dir += "\\";
if(isf != null) {
try {
isf.Demand(dir == null ? fullPath : dir);
} catch (Exception e) {
throw GetIsolatedStorageException("IsolatedStorage_Operation", e);
}
}
if(CompatibilitySwitches.IsAppEarlierThanWindowsPhoneMango)
{
// Pre Mango Windows Phone had very odd behavior for this function. It would take the parent directory of the search pattern and do a *
// in there. That means something like GetDirectories("Dir1") would be treated as GetDirectories("*") and GetDirectories("Dir2\Dir3") would be
// treated as GetDirectories("Dir2\*").
// This also means that GetDirectories("") returned "IsolatedStorage" since it was looking at the directory above the root of Isolated Storage.
fullPath = Path.Combine(Path.GetDirectoryName(fullPath), "*");
}
String[] list = new String[10];
int listSize = 0;
Win32Native.WIN32_FIND_DATA data = new Win32Native.WIN32_FIND_DATA();
// Open a Find handle
SafeFindHandle hnd = Win32Native.FindFirstFile(fullPath, data);
if(hnd.IsInvalid) {
// Calls to GetLastWin32Error overwrites HResult. Store HResult.
hr = Marshal.GetLastWin32Error();
if(hr == Win32Native.ERROR_FILE_NOT_FOUND)
return new String[0];
// Mango would throw DirectoryNotFoundException if we got ERROR_PATH_NOT_FOUND instead of IsolatedStorageException
if(CompatibilitySwitches.IsAppEarlierThanWindowsPhone8 && hr == Win32Native.ERROR_PATH_NOT_FOUND)
__Error.WinIOError(hr, msg);
#if FEATURE_ISOSTORE_LIGHT
throw GetIsolatedStorageException("IsolatedStorage_Operation", Marshal.GetExceptionForHR(Marshal.GetHRForLastWin32Error(), new IntPtr(-1)));
#else
__Error.WinIOError(hr, msg);
#endif
}
// Keep asking for more matching files, adding file names to list
int numEntries = 0; // Number of directory entities we see.
do {
bool includeThis; // Should this file/directory be included in the output?
if(file)
includeThis = (0 == (data.dwFileAttributes & Win32Native.FILE_ATTRIBUTE_DIRECTORY));
else {
includeThis = (0 != (data.dwFileAttributes & Win32Native.FILE_ATTRIBUTE_DIRECTORY));
// Don't add "." nor ".."
if(includeThis && (data.cFileName.Equals(".") || data.cFileName.Equals("..")))
includeThis = false;
}
if(includeThis) {
numEntries++;
if(listSize == list.Length) {
String[] newList = new String[list.Length * 2];
Array.Copy(list, 0, newList, 0, listSize);
list = newList;
}
list[listSize++] = data.cFileName;
}
} while(Win32Native.FindNextFile(hnd, data));
// Make sure we quit with a sensible error.
hr = Marshal.GetLastWin32Error();
hnd.Close(); // Close Find handle in all cases.
if(hr != 0 && hr != Win32Native.ERROR_NO_MORE_FILES) __Error.WinIOError(hr, msg);
// Check for a string such as "C:\tmp", in which case we return
// just the directory name. FindNextFile fails first time, and
// data still contains a directory.
if(!file && numEntries == 1 && (0 != (data.dwFileAttributes & Win32Native.FILE_ATTRIBUTE_DIRECTORY))) {
String[] sa = new String[1];
sa[0] = data.cFileName;
return sa;
}
// Return list of files/directories as an array of strings
if(listSize == list.Length)
return list;
String[] items = new String[listSize];
Array.Copy(list, 0, items, 0, listSize);
return items;
}
// Private helper function that does not do any security checks
internal static String[] InternalGetFileDirectoryNames(String fullPath, bool file)
{
int hr;
// If path ends in a trailing slash (\), append a * or we'll
// get a "Cannot find the file specified" exception
char lastChar = fullPath[fullPath.Length-1];
if (lastChar == Path.DirectorySeparatorChar || lastChar == Path.AltDirectorySeparatorChar || lastChar == Path.VolumeSeparatorChar)
fullPath = fullPath + '*';
String[] list = new String[10];
int listSize = 0;
Win32Native.WIN32_FIND_DATA data = new Win32Native.WIN32_FIND_DATA();
// Open a Find handle (Win32 is weird)
IntPtr hnd = Win32Native.FindFirstFile(fullPath, data);
if (hnd==Win32Native.INVALID_HANDLE_VALUE) {
// Calls to GetLastWin32Error clobber HResult. Store HResult.
hr = Marshal.GetLastWin32Error();
if (hr==Win32Native.ERROR_FILE_NOT_FOUND)
return new String[0];
__Error.WinIOError(hr, Path.GetDirectoryName(fullPath));
}
// Keep asking for more matching files, adding file names to list
int numEntries = 0; // Number of DirectoryInfo entities we see.
do {
bool includeThis; // Should this file/DirectoryInfo be included in the output?
if (file)
includeThis = (0==(data.dwFileAttributes & Win32Native.FILE_ATTRIBUTE_DIRECTORY));
else {
includeThis = (0!=(data.dwFileAttributes & Win32Native.FILE_ATTRIBUTE_DIRECTORY));
// Don't add "." nor ".."
if (includeThis && (data.cFileName.Equals(".") || data.cFileName.Equals("..")))
includeThis = false;
}
if (includeThis) {
numEntries++;
if (listSize==list.Length) {
String[] newList = new String[list.Length*2];
Array.Copy(list, 0, newList, 0, listSize);
list = newList;
}
list[listSize++] = data.cFileName;
}
} while (Win32Native.FindNextFile(hnd, data));
// Make sure we quit with a sensible error.
hr = Marshal.GetLastWin32Error();
Win32Native.FindClose(hnd); // Close Find handle in all cases.
if (hr!=0 && hr!=Win32Native.ERROR_NO_MORE_FILES) __Error.WinIOError(hr, Path.GetDirectoryName(fullPath));
// Check for a string such as "C:\tmp", in which case we return
// just the DirectoryInfo name. FindNextFile fails first time, and
// data still contains a directory.
if (!file && numEntries==1 && (0!=(data.dwFileAttributes & Win32Native.FILE_ATTRIBUTE_DIRECTORY))) {
String[] sa = new String[1];
sa[0] = data.cFileName;
return sa;
}
// Return list of files/directories as an array of strings
if (listSize == list.Length)
return list;
String[] items = new String[listSize];
Array.Copy(list, 0, items, 0, listSize);
return items;
}
private static void DeleteHelper(string fullPath, string userPath, bool recursive)
{
int num;
Exception exception = null;
if (recursive)
{
Win32Native.WIN32_FIND_DATA data = new Win32Native.WIN32_FIND_DATA();
using (SafeFindHandle handle = Win32Native.FindFirstFile(fullPath + Path.DirectorySeparatorChar + "*", data))
{
if (handle.IsInvalid)
{
num = Marshal.GetLastWin32Error();
__Error.WinIOError(num, fullPath);
}
do
{
if (0 != (data.dwFileAttributes & 0x10))
{
if (!data.cFileName.Equals(".") && !data.cFileName.Equals(".."))
{
if (0 == (data.dwFileAttributes & 0x400))
{
string str = Path.InternalCombine(fullPath, data.cFileName);
string str2 = Path.InternalCombine(userPath, data.cFileName);
try
{
DeleteHelper(str, str2, recursive);
}
catch (Exception exception2)
{
if (exception == null)
{
exception = exception2;
}
}
}
else
{
if ((data.dwReserved0 == -1610612733) && !Win32Native.DeleteVolumeMountPoint(Path.InternalCombine(fullPath, data.cFileName + Path.DirectorySeparatorChar)))
{
num = Marshal.GetLastWin32Error();
try
{
__Error.WinIOError(num, data.cFileName);
}
catch (Exception exception3)
{
if (exception == null)
{
exception = exception3;
}
}
}
if (!Win32Native.RemoveDirectory(Path.InternalCombine(fullPath, data.cFileName)))
{
num = Marshal.GetLastWin32Error();
try
{
__Error.WinIOError(num, data.cFileName);
}
catch (Exception exception4)
{
if (exception == null)
{
exception = exception4;
}
}
}
}
}
}
else if (!Win32Native.DeleteFile(Path.InternalCombine(fullPath, data.cFileName)))
{
num = Marshal.GetLastWin32Error();
if (num != 2)
{
try
{
__Error.WinIOError(num, data.cFileName);
}
catch (Exception exception5)
{
if (exception == null)
{
exception = exception5;
}
}
}
}
}
while (Win32Native.FindNextFile(handle, data));
num = Marshal.GetLastWin32Error();
}
if (exception != null)
{
throw exception;
}
if ((num != 0) && (num != 0x12))
{
__Error.WinIOError(num, userPath);
}
}
if (!Win32Native.RemoveDirectory(fullPath))
{
num = Marshal.GetLastWin32Error();
switch (num)
{
case 2:
num = 3;
break;
case 5:
throw new IOException(Environment.GetResourceString("UnauthorizedAccess_IODenied_Path", new object[] { userPath }));
}
__Error.WinIOError(num, fullPath);
}
}
internal static string[] GetFileDirectoryNames(string path, string userSearchPattern, bool file)
{
int num;
if (path == null)
{
throw new ArgumentNullException("path", Environment.GetResourceString("ArgumentNull_Path"));
}
userSearchPattern = NormalizeSearchPattern(userSearchPattern);
if (userSearchPattern.Length == 0)
{
return new string[0];
}
bool flag = false;
char ch = path[path.Length - 1];
if (((ch == Path.DirectorySeparatorChar) || (ch == Path.AltDirectorySeparatorChar)) || (ch == '.'))
{
flag = true;
}
string str = LongPath.NormalizePath(path);
if (flag && (str[str.Length - 1] != ch))
{
str = str + @"\*";
}
string directoryName = LongPath.GetDirectoryName(str);
if (directoryName != null)
{
directoryName = directoryName + @"\";
}
try
{
string[] pathList = new string[] { (directoryName == null) ? str : directoryName };
new FileIOPermission(FileIOPermissionAccess.Read, pathList, false, false).Demand();
}
catch
{
throw new IsolatedStorageException(Environment.GetResourceString("IsolatedStorage_Operation"));
}
string[] sourceArray = new string[10];
int length = 0;
Win32Native.WIN32_FIND_DATA data = new Win32Native.WIN32_FIND_DATA();
SafeFindHandle hndFindFile = Win32Native.FindFirstFile(Path.AddLongPathPrefix(str), data);
if (hndFindFile.IsInvalid)
{
num = Marshal.GetLastWin32Error();
if (num == 2)
{
return new string[0];
}
__Error.WinIOError(num, userSearchPattern);
}
int num3 = 0;
do
{
bool flag2;
if (file)
{
flag2 = 0 == (data.dwFileAttributes & 0x10);
}
else
{
flag2 = 0 != (data.dwFileAttributes & 0x10);
if (flag2 && (data.cFileName.Equals(".") || data.cFileName.Equals("..")))
{
flag2 = false;
}
}
if (flag2)
{
num3++;
if (length == sourceArray.Length)
{
string[] strArray3 = new string[sourceArray.Length * 2];
Array.Copy(sourceArray, 0, strArray3, 0, length);
sourceArray = strArray3;
}
sourceArray[length++] = data.cFileName;
}
}
while (Win32Native.FindNextFile(hndFindFile, data));
num = Marshal.GetLastWin32Error();
hndFindFile.Close();
if ((num != 0) && (num != 0x12))
{
__Error.WinIOError(num, userSearchPattern);
}
if ((!file && (num3 == 1)) && ((data.dwFileAttributes & 0x10) != 0))
{
return new string[] { data.cFileName };
}
if (length == sourceArray.Length)
{
return sourceArray;
}
string[] destinationArray = new string[length];
Array.Copy(sourceArray, 0, destinationArray, 0, length);
return destinationArray;
}
internal SearchResult(string fullPath, string userPath, Win32Native.WIN32_FIND_DATA findData)
{
this.fullPath = fullPath;
this.userPath = userPath;
this.findData = findData;
}
internal static int FillAttributeInfo(string path, ref Win32Native.WIN32_FILE_ATTRIBUTE_DATA data, bool tryagain, bool returnErrorOnNotFound)
{
int num = 0;
if (tryagain)
{
Win32Native.WIN32_FIND_DATA win_find_data = new Win32Native.WIN32_FIND_DATA();
string fileName = path.TrimEnd(new char[] { Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar });
int num2 = Win32Native.SetErrorMode(1);
try
{
bool flag = false;
SafeFindHandle handle = Win32Native.FindFirstFile(fileName, win_find_data);
try
{
if (handle.IsInvalid)
{
flag = true;
num = Marshal.GetLastWin32Error();
if ((((num == 2) || (num == 3)) || (num == 0x15)) && !returnErrorOnNotFound)
{
num = 0;
data.fileAttributes = -1;
}
return num;
}
}
finally
{
try
{
handle.Close();
}
catch
{
if (!flag)
{
__Error.WinIOError();
}
}
}
}
finally
{
Win32Native.SetErrorMode(num2);
}
data.PopulateFrom(win_find_data);
return num;
}
bool flag2 = false;
int newMode = Win32Native.SetErrorMode(1);
try
{
flag2 = Win32Native.GetFileAttributesEx(path, 0, ref data);
}
finally
{
Win32Native.SetErrorMode(newMode);
}
if (!flag2)
{
num = Marshal.GetLastWin32Error();
if (((num != 2) && (num != 3)) && (num != 0x15))
{
return FillAttributeInfo(path, ref data, true, returnErrorOnNotFound);
}
if (!returnErrorOnNotFound)
{
num = 0;
data.fileAttributes = -1;
}
}
return num;
}
internal static String[] InternalGetFileDirectoryNames(String path, String userPathOriginal, String searchPattern, bool includeFiles, bool includeDirs, SearchOption searchOption)
{
int hr = 0;
if ((searchOption != SearchOption.TopDirectoryOnly) && (searchOption != SearchOption.AllDirectories))
throw new ArgumentOutOfRangeException("searchOption", Environment.GetResourceString("ArgumentOutOfRange_Enum"));
searchPattern = searchPattern.TrimEnd();
if (searchPattern.Length == 0)
return new String[0];
Path.CheckSearchPattern(searchPattern);
// Build various paths and query strings
// Must fully qualify the path for the security check
String fullPath = Path.GetFullPathInternal(path);
// Any illegal chars such as *, ? will be caught by FileIOPermission.HasIllegalCharacters
String[] demandPaths = new String[] {GetDemandDir(fullPath, true)};
new FileIOPermission(FileIOPermissionAccess.PathDiscovery, demandPaths, false, false).Demand();
String userPath = userPathOriginal;
String tempPath = Path.GetDirectoryName(searchPattern);
if (tempPath != null && tempPath.Length != 0) { // For filters like foo\*.cs we need to verify if the directory foo is not denied access.
// Do a demand on the combined path so that we can fail early in case of deny
demandPaths = new String[] {GetDemandDir(Path.InternalCombine(fullPath, tempPath), true)};
new FileIOPermission(FileIOPermissionAccess.PathDiscovery, demandPaths, false, false).Demand();
userPath = Path.Combine(userPath, tempPath); // Need to add the searchPath to return correct path and for right security checks
}
String tempStr = Path.InternalCombine(fullPath, searchPattern);
// If path ends in a trailing slash (\), append a * or we'll
// get a "Cannot find the file specified" exception
char lastChar = tempStr[tempStr.Length-1];
if (lastChar == Path.DirectorySeparatorChar || lastChar == Path.AltDirectorySeparatorChar || lastChar == Path.VolumeSeparatorChar)
tempStr = tempStr + '*';
fullPath = Path.GetDirectoryName(tempStr);
BCLDebug.Assert((fullPath != null),"fullpath can't be null!");
String searchCriteria;
bool trailingSlash = false;
bool trailingSlashUserPath = false;
lastChar = fullPath[fullPath.Length-1];
trailingSlash = (lastChar == Path.DirectorySeparatorChar) || (lastChar == Path.AltDirectorySeparatorChar);
if (trailingSlash) {
// Can happen if the path is C:\temp, in which case GetDirectoryName would return C:\
searchCriteria = tempStr.Substring(fullPath.Length);
}
else
searchCriteria = tempStr.Substring(fullPath.Length + 1);
Win32Native.WIN32_FIND_DATA data = new Win32Native.WIN32_FIND_DATA();
SafeFindHandle hnd = null;
// Heap based search stack
SearchData searchData = new SearchData(fullPath, userPath, searchOption);
List<SearchData> searchStack = new List<SearchData>();
searchStack.Add(searchData);
List<string> demandPathList = new List<string>();
int numEntries = 0; // Number of directory entities we see.
int listSize = 0;
String[] list = new String[10];
String searchPath;
int oldMode = Win32Native.SetErrorMode(Win32Native.SEM_FAILCRITICALERRORS);
try {
// Traverse directory structure. We need to get '*'
while(searchStack.Count > 0) {
searchData = searchStack[searchStack.Count - 1];
searchStack.RemoveAt(searchStack.Count - 1);
BCLDebug.Assert((searchData.fullPath != null),"fullpath can't be null!");
lastChar = searchData.fullPath[searchData.fullPath.Length -1];
trailingSlash = (lastChar == Path.DirectorySeparatorChar) || (lastChar == Path.AltDirectorySeparatorChar);
if (searchData.userPath.Length > 0) {
lastChar = searchData.userPath[searchData.userPath.Length -1];
trailingSlashUserPath = (lastChar == Path.DirectorySeparatorChar) || (lastChar == Path.AltDirectorySeparatorChar);
}
// Traverse the subdirs if specified
if (searchData.searchOption != SearchOption.TopDirectoryOnly) {
try {
if (trailingSlash)
searchPath = searchData.fullPath + "*";
else
searchPath = searchData.fullPath + Path.DirectorySeparatorChar + "*";
// Get all files and dirs
hnd = Win32Native.FindFirstFile(searchPath, data);
if (hnd.IsInvalid) {
hr = Marshal.GetLastWin32Error();
// This could happen if the dir doesn't contain any files.
// Continue with the recursive search though, eventually
// searchStack will become empty
if (hr==Win32Native.ERROR_FILE_NOT_FOUND)
continue;
__Error.WinIOError(hr, searchData.fullPath);
}
// Add subdirs to searchStack. Exempt ReparsePoints as appropriate
do {
if ((0 != (data.dwFileAttributes & Win32Native.FILE_ATTRIBUTE_DIRECTORY))
&& !data.cFileName.Equals(".") && !data.cFileName.Equals("..")) {
// Setup search data for the sub directory and push it into the stack
SearchData searchDataSubDir = new SearchData();
// FullPath
StringBuilder strBldr = new StringBuilder(searchData.fullPath);
if (!trailingSlash)
strBldr.Append(Path.DirectorySeparatorChar);
strBldr.Append(data.cFileName);
searchDataSubDir.fullPath = strBldr.ToString();
// UserPath
strBldr.Length = 0;
strBldr.Append(searchData.userPath);
if (!trailingSlashUserPath)
strBldr.Append(Path.DirectorySeparatorChar);
strBldr.Append(data.cFileName);
searchDataSubDir.userPath = strBldr.ToString();
// SearchOption
searchDataSubDir.searchOption = searchData.searchOption;
searchStack.Add(searchDataSubDir);
}
} while (Win32Native.FindNextFile(hnd, data));
// We don't care about any error here
}
finally {
if (hnd != null)
hnd.Dispose();
}
}
// Execute searchCriteria against the current directory
try{
if (trailingSlash)
searchPath = searchData.fullPath + searchCriteria;
else
searchPath = searchData.fullPath + Path.DirectorySeparatorChar + searchCriteria;
// Open a Find handle
hnd = Win32Native.FindFirstFile(searchPath, data);
if (hnd.IsInvalid) {
hr = Marshal.GetLastWin32Error();
if (hr == Win32Native.ERROR_FILE_NOT_FOUND)
continue;
__Error.WinIOError(hr, searchData.fullPath);
}
numEntries = 0;
// Keep asking for more matching files/dirs, add it to the list
do {
bool includeThis = false; // Should this file/directory be included in the output?
if (includeFiles)
includeThis = (0 == (data.dwFileAttributes & Win32Native.FILE_ATTRIBUTE_DIRECTORY));
if (includeDirs) {
// Don't add "." nor ".."
if ((0 != (data.dwFileAttributes & Win32Native.FILE_ATTRIBUTE_DIRECTORY))
&& !data.cFileName.Equals(".") && !data.cFileName.Equals("..")) {
BCLDebug.Assert(!includeThis, data.cFileName + ": current item can't be both file and dir!");
includeThis = true;
}
}
if (includeThis) {
numEntries++;
if (listSize==list.Length) {
String[] newList = new String[list.Length*2];
Array.Copy(list, 0, newList, 0, listSize);
list = newList;
}
list[listSize++] = Path.InternalCombine(searchData.userPath, data.cFileName);
}
} while (Win32Native.FindNextFile(hnd, data));
// Make sure we quit with a sensible error.
hr = Marshal.GetLastWin32Error();
// Demand pathdiscovery for all the parent dirs that are returned
// I.e, if C:\temp\foo\bar is returned, demand C:\temp\foo
if (numEntries > 0) {
demandPathList.Add(GetDemandDir(searchData.fullPath, true));
}
}
finally {
if (hnd != null)
hnd.Dispose();
}
} // End while
}
finally {
Win32Native.SetErrorMode(oldMode);
}
// ERROR_FILE_NOT_FOUND is valid here because if the top level
// dir doen't contain any subdirs and matching files then
// we will get here with this errorcode from the searchStack walk
if ((hr != 0) && (hr != Win32Native.ERROR_NO_MORE_FILES)
&& (hr != Win32Native.ERROR_FILE_NOT_FOUND)) {
__Error.WinIOError(hr, searchData.fullPath);
}
// Demand pathdiscovery for all the parent dirs that are returned
// I.e, if C:\temp\foo\bar is returned, demand C:\temp\foo
if (demandPathList.Count > 0) {
demandPaths = new String[demandPathList.Count];
demandPathList.CopyTo(demandPaths, 0);
// No need to check for dupls as the demandPathList entries should be unique
new FileIOPermission(FileIOPermissionAccess.PathDiscovery, demandPaths, false, false ).Demand();
}
// Check for a string such as "C:\tmp", in which case we return
// just the DirectoryInfo name. FindNextFile fails first time, and
// data still contains a directory.
/*
if (includeDirs && numEntries==1 && (0!=(data.dwFileAttributes & Win32Native.FILE_ATTRIBUTE_DIRECTORY))) {
String[] sa = new String[1];
sa[0] = Path.InternalCombine(searchData.userPath, data.cFileName);
return sa;
}
*/
// Return list of files/directories as an array of strings
if (listSize == list.Length)
return list;
String[] items = new String[listSize];
Array.Copy(list, 0, items, 0, listSize);
return items;
}
