!IsDOSPathSep(path[2u]);
}
+#ifndef __WIN32__
+
+// Under Unix-ish systems (basically everything except Windows) we may work
+// either with the file itself or its target if it's a symbolic link and we
+// should dereference it, as determined by wxFileName::ShouldFollowLink() and
+// the absence of the wxFILE_EXISTS_NO_FOLLOW flag. StatAny() can be used to
+// stat the appropriate file with an extra twist that it also works when there
+// is no wxFileName object at all, as is the case in static methods.
+
+// Private implementation, don't call directly, use one of the overloads below.
+bool DoStatAny(wxStructStat& st, wxString path, bool dereference)
+{
+ // We need to remove any trailing slashes from the path because they could
+ // interfere with the symlink following decision: even if we use lstat(),
+ // it would still follow the symlink if we pass it a path with a slash at
+ // the end because the symlink resolution would happen while following the
+ // path and not for the last path element itself.
+
+ while ( wxEndsWithPathSeparator(path) )
+ {
+ const size_t posLast = path.length() - 1;
+ if ( !posLast )
+ {
+ // Don't turn "/" into empty string.
+ break;
+ }
+
+ path.erase(posLast);
+ }
+
+ int ret = dereference ? wxStat(path, &st) : wxLstat(path, &st);
+ return ret == 0;
+}
+
+// Overloads to use for a case when we don't have wxFileName object and when we
+// do have one.
+inline
+bool StatAny(wxStructStat& st, const wxString& path, int flags)
+{
+ return DoStatAny(st, path, !(flags & wxFILE_EXISTS_NO_FOLLOW));
+}
+
+inline
+bool StatAny(wxStructStat& st, const wxFileName& fn)
+{
+ return DoStatAny(st, fn.GetFullPath(), fn.ShouldFollowLink());
+}
+
+#endif // !__WIN32__
+
// ----------------------------------------------------------------------------
// private constants
// ----------------------------------------------------------------------------
m_ext = filepath.GetExt();
m_relative = filepath.m_relative;
m_hasExt = filepath.m_hasExt;
+ m_dontFollowLinks = filepath.m_dontFollowLinks;
}
void wxFileName::Assign(const wxString& volume,
// nor any extension
m_hasExt = false;
+
+ // follow symlinks by default
+ m_dontFollowLinks = false;
}
/* static */
namespace
{
-// Flags for wxFileSystemObjectExists() asking it to check for:
-enum
-{
- wxFileSystemObject_File = 1, // file existence
- wxFileSystemObject_Dir = 2, // directory existence
- wxFileSystemObject_Other = 4, // existence of something else, e.g.
- // device, socket, FIFO under Unix
- wxFileSystemObject_Any = 7 // existence of anything at all
-};
-
#if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
void RemoveTrailingSeparatorsFromPath(wxString& strPath)
#endif // __WINDOWS__ || __OS2__
-bool wxFileSystemObjectExists(const wxString& path, int flags)
+bool
+wxFileSystemObjectExists(const wxString& path, int flags)
{
+
// Should the existence of file/directory with this name be accepted, i.e.
// result in the true return value from this function?
- const bool acceptFile = (flags & wxFileSystemObject_File) != 0;
- const bool acceptDir = (flags & wxFileSystemObject_Dir) != 0;
+ const bool acceptFile = (flags & wxFILE_EXISTS_REGULAR) != 0;
+ const bool acceptDir = (flags & wxFILE_EXISTS_DIR) != 0;
wxString strPath(path);
// we must use GetFileAttributes() instead of the ANSI C functions because
// it can cope with network (UNC) paths unlike them
- DWORD ret = ::GetFileAttributes(path.t_str());
+ DWORD ret = ::GetFileAttributes(strPath.t_str());
if ( ret == INVALID_FILE_ATTRIBUTES )
return false;
// We consider that the path must exist if we get a sharing violation for
// it but we don't know what is it in this case.
if ( rc == ERROR_SHARING_VIOLATION )
- return flags & wxFileSystemObject_Other;
+ return flags & wxFILE_EXISTS_ANY;
// Any other error (usually ERROR_PATH_NOT_FOUND), means there is nothing
// there.
return false;
#else // Non-MSW, non-OS/2
wxStructStat st;
- if ( wxStat(strPath, &st) != 0 )
+ if ( !StatAny(st, strPath, flags) )
return false;
if ( S_ISREG(st.st_mode) )
return acceptFile;
if ( S_ISDIR(st.st_mode) )
return acceptDir;
+ if ( S_ISLNK(st.st_mode) )
+ {
+ // Take care to not test for "!= 0" here as this would erroneously
+ // return true if only wxFILE_EXISTS_NO_FOLLOW, which is part of
+ // wxFILE_EXISTS_SYMLINK, is set too.
+ return (flags & wxFILE_EXISTS_SYMLINK) == wxFILE_EXISTS_SYMLINK;
+ }
+ if ( S_ISBLK(st.st_mode) || S_ISCHR(st.st_mode) )
+ return (flags & wxFILE_EXISTS_DEVICE) != 0;
+ if ( S_ISFIFO(st.st_mode) )
+ return (flags & wxFILE_EXISTS_FIFO) != 0;
+ if ( S_ISSOCK(st.st_mode) )
+ return (flags & wxFILE_EXISTS_SOCKET) != 0;
- return flags & wxFileSystemObject_Other;
+ return flags & wxFILE_EXISTS_ANY;
#endif // Platforms
}
bool wxFileName::FileExists() const
{
- return wxFileName::FileExists( GetFullPath() );
+ int flags = wxFILE_EXISTS_REGULAR;
+ if ( !ShouldFollowLink() )
+ flags |= wxFILE_EXISTS_NO_FOLLOW;
+
+ return wxFileSystemObjectExists(GetFullPath(), flags);
}
/* static */
bool wxFileName::FileExists( const wxString &filePath )
{
- return wxFileSystemObjectExists(filePath, wxFileSystemObject_File);
+ return wxFileSystemObjectExists(filePath, wxFILE_EXISTS_REGULAR);
}
bool wxFileName::DirExists() const
{
- return wxFileName::DirExists( GetPath() );
+ int flags = wxFILE_EXISTS_DIR;
+ if ( !ShouldFollowLink() )
+ flags |= wxFILE_EXISTS_NO_FOLLOW;
+
+ return Exists(GetPath(), flags);
}
/* static */
bool wxFileName::DirExists( const wxString &dirPath )
{
- return wxFileSystemObjectExists(dirPath, wxFileSystemObject_Dir);
+ return wxFileSystemObjectExists(dirPath, wxFILE_EXISTS_DIR);
+}
+
+bool wxFileName::Exists(int flags) const
+{
+ // Notice that wxFILE_EXISTS_NO_FOLLOW may be specified in the flags even
+ // if our DontFollowLink() hadn't been called and we do honour it then. But
+ // if the user took the care of calling DontFollowLink(), it is always
+ // taken into account.
+ if ( !ShouldFollowLink() )
+ flags |= wxFILE_EXISTS_NO_FOLLOW;
+
+ return wxFileSystemObjectExists(GetFullPath(), flags);
}
/* static */
-bool wxFileName::Exists(const wxString& path)
+bool wxFileName::Exists(const wxString& path, int flags)
{
- return wxFileSystemObjectExists(path, wxFileSystemObject_Any);
+ return wxFileSystemObjectExists(path, flags);
}
// ----------------------------------------------------------------------------
DWORD attributes = FILE_ATTRIBUTE_TEMPORARY |
FILE_FLAG_DELETE_ON_CLOSE;
- HANDLE h = ::CreateFile(filename.fn_str(), access, 0, NULL,
+ HANDLE h = ::CreateFile(filename.t_str(), access, 0, NULL,
disposition, attributes, NULL);
return wxOpenOSFHandle(h, wxO_BINARY);
SHFILEOPSTRUCT fileop;
wxZeroMemory(fileop);
fileop.wFunc = FO_DELETE;
- #if defined(__CYGWIN__) && defined(wxUSE_UNICODE)
- fileop.pFrom = path.wc_str();
- #else
- fileop.pFrom = path.fn_str();
- #endif
+ fileop.pFrom = path.t_str();
fileop.fFlags = FOF_SILENT | FOF_NOCONFIRMATION;
#ifndef __WXWINCE__
// FOF_NOERRORUI is not defined in WinCE
if ( flags != 0 ) // wxPATH_RMDIR_FULL or wxPATH_RMDIR_RECURSIVE
#endif // !__WINDOWS__
{
+#ifndef __WINDOWS__
+ if ( flags & wxPATH_RMDIR_RECURSIVE )
+ {
+ // When deleting the tree recursively, we are supposed to delete
+ // this directory itself even when it is a symlink -- but without
+ // following it. Do it here as wxRmdir() would simply follow if
+ // called for a symlink.
+ if ( wxFileName::Exists(dir, wxFILE_EXISTS_SYMLINK) )
+ {
+ return wxRemoveFile(dir);
+ }
+ }
+#endif // !__WINDOWS__
+
wxString path(dir);
if ( path.Last() != wxFILE_SEP_PATH )
path += wxFILE_SEP_PATH;
wxString filename;
- // first delete all subdirectories
- bool cont = d.GetFirst(&filename, "", wxDIR_DIRS | wxDIR_HIDDEN);
+ // First delete all subdirectories: notice that we don't follow
+ // symbolic links, potentially leading outside this directory, to avoid
+ // unpleasant surprises.
+ bool cont = d.GetFirst(&filename, wxString(),
+ wxDIR_DIRS | wxDIR_HIDDEN | wxDIR_NO_FOLLOW);
while ( cont )
{
wxFileName::Rmdir(path + filename, flags);
#ifndef __WINDOWS__
if ( flags & wxPATH_RMDIR_RECURSIVE )
{
- // delete all files too
- cont = d.GetFirst(&filename, "", wxDIR_FILES | wxDIR_HIDDEN);
+ // Delete all files too and, for the same reasons as above, don't
+ // follow symlinks which could refer to the files outside of this
+ // directory and just delete the symlinks themselves.
+ cont = d.GetFirst(&filename, wxString(),
+ wxDIR_FILES | wxDIR_HIDDEN | wxDIR_NO_FOLLOW);
while ( cont )
{
::wxRemoveFile(path + filename);
#if defined(__UNIX__)
wxStructStat st1, st2;
- if ( wxStat(fn1.GetFullPath(), &st1) == 0 &&
- wxStat(fn2.GetFullPath(), &st2) == 0 )
+ if ( StatAny(st1, fn1) && StatAny(st2, fn2) )
{
if ( st1.st_ino == st2.st_ino && st1.st_dev == st2.st_dev )
return true;
#elif defined(__UNIX_LIKE__) || defined(__WXMAC__) || defined(__OS2__) || (defined(__DOS__) && defined(__WATCOMC__))
// no need to test for IsDir() here
wxStructStat stBuf;
- if ( wxStat( GetFullPath(), &stBuf) == 0 )
+ if ( StatAny(stBuf, *this) )
{
// Android defines st_*time fields as unsigned long, but time_t as long,
// hence the static_casts.
projects / wxWidgets.git / blobdiff