3.9

1 files changed, 0 insertions, 421 deletions

diff --git a/shared/fileTraverser.cpp b/shared/fileTraverser.cpp
deleted file mode 100644
index 465c2f8f..00000000
--- a/shared/fileTraverser.cpp
+++ /dev/null
@@ -1,421 +0,0 @@
-// **************************************************************************
-// * This file is part of the FreeFileSync project. It is distributed under *
-// * GNU General Public License: http://www.gnu.org/licenses/gpl.html       *
-// * Copyright (C) 2008-2010 ZenJu (zhnmju123 AT gmx.de)                    *
-// **************************************************************************
-//
-#include "fileTraverser.h"
-#include "systemConstants.h"
-#include "systemFunctions.h"
-#include <wx/intl.h>
-#include "stringConv.h"
-#include <boost/shared_ptr.hpp>
-#include <boost/scoped_array.hpp>
-
-#ifdef FFS_WIN
-#include <wx/msw/wrapwin.h> //includes "windows.h"
-#include "WinIoCtl.h"
-#include "longPathPrefix.h"
-
-#elif defined FFS_LINUX
-#include <sys/stat.h>
-#include <dirent.h>
-#include <cerrno>
-#endif
-
-
-//Note: this class is superfluous for 64 bit applications!
-//class DisableWow64Redirection
-//{
-//public:
-//    DisableWow64Redirection() :
-//        wow64DisableWow64FsRedirection(Utility::loadDllFunction<Wow64DisableWow64FsRedirectionFunc>(L"kernel32.dll", "Wow64DisableWow64FsRedirection")),
-//        wow64RevertWow64FsRedirection(Utility::loadDllFunction<Wow64RevertWow64FsRedirectionFunc>(L"kernel32.dll", "Wow64RevertWow64FsRedirection")),
-//        oldValue(NULL)
-//    {
-//        if (    wow64DisableWow64FsRedirection &&
-//                wow64RevertWow64FsRedirection)
-//            (*wow64DisableWow64FsRedirection)(&oldValue); //__out  PVOID *OldValue
-//    }
-//
-//    ~DisableWow64Redirection()
-//    {
-//        if (    wow64DisableWow64FsRedirection &&
-//                wow64RevertWow64FsRedirection)
-//            (*wow64RevertWow64FsRedirection)(oldValue); //__in  PVOID OldValue
-//    }
-//
-//private:
-//    typedef BOOL (WINAPI *Wow64DisableWow64FsRedirectionFunc)(PVOID* OldValue);
-//    typedef BOOL (WINAPI *Wow64RevertWow64FsRedirectionFunc)(PVOID OldValue);
-//
-//    const Wow64DisableWow64FsRedirectionFunc wow64DisableWow64FsRedirection;
-//    const Wow64RevertWow64FsRedirectionFunc  wow64RevertWow64FsRedirection;
-//
-//    PVOID oldValue;
-//};
-
-#ifdef _MSC_VER //I don't have Windows Driver Kit at hands right now, so unfortunately we need to redefine this structures and cross fingers...
-typedef struct _REPARSE_DATA_BUFFER
-{
-    ULONG  ReparseTag;
-    USHORT ReparseDataLength;
-    USHORT Reserved;
-    union
-    {
-        struct
-        {
-            USHORT SubstituteNameOffset;
-            USHORT SubstituteNameLength;
-            USHORT PrintNameOffset;
-            USHORT PrintNameLength;
-            ULONG  Flags;
-            WCHAR  PathBuffer[1];
-        } SymbolicLinkReparseBuffer;
-        struct
-        {
-            USHORT SubstituteNameOffset;
-            USHORT SubstituteNameLength;
-            USHORT PrintNameOffset;
-            USHORT PrintNameLength;
-            WCHAR  PathBuffer[1];
-        } MountPointReparseBuffer;
-        struct
-        {
-            UCHAR DataBuffer[1];
-        } GenericReparseBuffer;
-    };
-} REPARSE_DATA_BUFFER, *PREPARSE_DATA_BUFFER;
-#define REPARSE_DATA_BUFFER_HEADER_SIZE   FIELD_OFFSET(REPARSE_DATA_BUFFER, GenericReparseBuffer)
-#endif
-
-
-Zstring getSymlinkTarget(const Zstring& linkPath) //throw(); returns empty string on error
-{
-#ifdef FFS_WIN
-//FSCTL_GET_REPARSE_POINT: http://msdn.microsoft.com/en-us/library/aa364571(VS.85).aspx
-
-    const HANDLE hLink = ::CreateFile(linkPath.c_str(),
-                                      GENERIC_READ,
-                                      FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
-                                      NULL,
-                                      OPEN_EXISTING,
-                                      FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT,
-                                      NULL);
-    if (hLink == INVALID_HANDLE_VALUE)
-        return Zstring();
-
-    boost::shared_ptr<void> dummy(hLink, ::CloseHandle);
-
-    //respect alignment issues...
-    const size_t bufferSize = REPARSE_DATA_BUFFER_HEADER_SIZE + MAXIMUM_REPARSE_DATA_BUFFER_SIZE;
-    boost::scoped_array<char> buffer(new char[bufferSize]);
-
-    DWORD bytesReturned; //dummy value required by FSCTL_GET_REPARSE_POINT!
-    if (!::DeviceIoControl(hLink,                   //__in         HANDLE hDevice,
-                           FSCTL_GET_REPARSE_POINT, //__in         DWORD dwIoControlCode,
-                           NULL,                    //__in_opt     LPVOID lpInBuffer,
-                           0,                       //__in         DWORD nInBufferSize,
-                           buffer.get(),            //__out_opt    LPVOID lpOutBuffer,
-                           bufferSize,              //__in         DWORD nOutBufferSize,
-                           &bytesReturned,          //__out_opt    LPDWORD lpBytesReturned,
-                           NULL))                   //__inout_opt  LPOVERLAPPED lpOverlapped
-        return Zstring();
-
-    REPARSE_DATA_BUFFER& reparseData = *reinterpret_cast<REPARSE_DATA_BUFFER*>(buffer.get()); //REPARSE_DATA_BUFFER needs to be artificially enlarged!
-
-    if (reparseData.ReparseTag == IO_REPARSE_TAG_SYMLINK)
-        return Zstring(reparseData.SymbolicLinkReparseBuffer.PathBuffer + reparseData.SymbolicLinkReparseBuffer.SubstituteNameOffset / sizeof(WCHAR),
-                       reparseData.SymbolicLinkReparseBuffer.SubstituteNameLength / sizeof(WCHAR));
-    else if (reparseData.ReparseTag == IO_REPARSE_TAG_MOUNT_POINT)
-        return Zstring(reparseData.MountPointReparseBuffer.PathBuffer + reparseData.MountPointReparseBuffer.SubstituteNameOffset / sizeof(WCHAR),
-                       reparseData.MountPointReparseBuffer.SubstituteNameLength / sizeof(WCHAR));
-    else
-        return Zstring(); //unknown reparse point
-
-#elif defined FFS_LINUX
-    const int BUFFER_SIZE = 10000;
-    char buffer[BUFFER_SIZE];
-
-    const int bytesWritten = ::readlink(linkPath.c_str(), buffer, BUFFER_SIZE);
-    if (bytesWritten < 0 || bytesWritten >= BUFFER_SIZE)
-        return Zstring(); //error
-
-    buffer[bytesWritten] = 0; //set null-terminating char
-
-    return buffer;
-#endif
-}
-
-
-#ifdef FFS_WIN
-inline
-wxLongLong getWin32TimeInformation(const FILETIME& lastWriteTime)
-{
-    //convert UTC FILETIME to ANSI C format (number of seconds since Jan. 1st 1970 UTC)
-    wxLongLong writeTimeLong(wxInt32(lastWriteTime.dwHighDateTime), lastWriteTime.dwLowDateTime);
-    writeTimeLong /= 10000000;                    //reduce precision to 1 second (FILETIME has unit 10^-7 s)
-    writeTimeLong -= wxLongLong(2, 3054539008UL); //timeshift between ansi C time and FILETIME in seconds == 11644473600s
-    return writeTimeLong;
-}
-
-
-inline
-void setWin32FileInformation(const FILETIME& lastWriteTime,
-                             const DWORD fileSizeHigh,
-                             const DWORD fileSizeLow,
-                             FreeFileSync::TraverseCallback::FileInfo& output)
-{
-    output.lastWriteTimeRaw = getWin32TimeInformation(lastWriteTime);
-    output.fileSize = wxULongLong(fileSizeHigh, fileSizeLow);
-}
-
-
-inline
-bool setWin32FileInformationFromSymlink(const Zstring& linkName, FreeFileSync::TraverseCallback::FileInfo& output)
-{
-    //open handle to target of symbolic link
-    HANDLE hFile = ::CreateFile(FreeFileSync::applyLongPathPrefix(linkName).c_str(),
-                                0,
-                                FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
-                                NULL,
-                                OPEN_EXISTING,
-                                FILE_FLAG_BACKUP_SEMANTICS,
-                                NULL);
-    if (hFile == INVALID_HANDLE_VALUE)
-        return false;
-
-    boost::shared_ptr<void> dummy(hFile, ::CloseHandle);
-
-    BY_HANDLE_FILE_INFORMATION fileInfoByHandle;
-    if (!::GetFileInformationByHandle(hFile, &fileInfoByHandle))
-        return false;
-
-    //write output
-    setWin32FileInformation(fileInfoByHandle.ftLastWriteTime, fileInfoByHandle.nFileSizeHigh, fileInfoByHandle.nFileSizeLow, output);
-    return true;
-}
-#endif
-
-
-template <bool followSymlinks>
-void traverseDirectory(const Zstring& directory, FreeFileSync::TraverseCallback* sink, int level)
-{
-    using namespace FreeFileSync;
-
-    if (level == 100) //catch endless recursion
-    {
-        sink->onError(wxString(_("Endless loop when traversing directory:")) + wxT("\n\"") + zToWx(directory) + wxT("\""));
-        return;
-    }
-
-#ifdef FFS_WIN
-    //ensure directoryFormatted ends with backslash
-    const Zstring directoryFormatted = directory.EndsWith(globalFunctions::FILE_NAME_SEPARATOR) ?
-                                       directory :
-                                       directory + globalFunctions::FILE_NAME_SEPARATOR;
-
-    WIN32_FIND_DATA fileMetaData;
-    HANDLE searchHandle = ::FindFirstFile(applyLongPathPrefix(directoryFormatted + DefaultChar('*')).c_str(), //__in   LPCTSTR lpFileName
-                                          &fileMetaData);                                                     //__out  LPWIN32_FIND_DATA lpFindFileData
-    //no noticable performance difference compared to FindFirstFileEx with FindExInfoBasic, FIND_FIRST_EX_CASE_SENSITIVE and/or FIND_FIRST_EX_LARGE_FETCH
-
-    if (searchHandle == INVALID_HANDLE_VALUE)
-    {
-        const DWORD lastError = ::GetLastError();
-        if (lastError == ERROR_FILE_NOT_FOUND)
-            return;
-
-        //else: we have a problem... report it:
-        const wxString errorMessage = wxString(_("Error traversing directory:")) + wxT("\n\"") + zToWx(directory) + wxT("\"") + wxT("\n\n") +
-                                      FreeFileSync::getLastErrorFormatted(lastError);
-
-        sink->onError(errorMessage);
-        return;
-    }
-
-    boost::shared_ptr<void> dummy(searchHandle, ::FindClose);
-
-    do
-    {
-        //don't return "." and ".."
-        const wxChar* const shortName = fileMetaData.cFileName;
-        if (     shortName[0] == wxChar('.') &&
-                 ((shortName[1] == wxChar('.') && shortName[2] == wxChar('\0')) ||
-                  shortName[1] == wxChar('\0')))
-            continue;
-
-        const Zstring fullName = directoryFormatted + shortName;
-
-        const bool isSymbolicLink = (fileMetaData.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) != 0;
-
-        if (isSymbolicLink && !followSymlinks) //evaluate symlink directly
-        {
-            TraverseCallback::SymlinkInfo details;
-            details.lastWriteTimeRaw = getWin32TimeInformation(fileMetaData.ftLastWriteTime);
-            details.targetPath       = getSymlinkTarget(fullName); //throw(); returns empty string on error
-            details.dirLink          = (fileMetaData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0; //directory symlinks have this flag on Windows
-            sink->onSymlink(shortName, fullName, details);
-        }
-        else if (fileMetaData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) //a directory... or symlink that needs to be followed (for directory symlinks this flag is set too!)
-        {
-            const TraverseCallback::ReturnValDir rv = sink->onDir(shortName, fullName);
-            switch (rv.returnCode)
-            {
-            case TraverseCallback::ReturnValDir::TRAVERSING_DIR_IGNORE:
-                break;
-
-            case TraverseCallback::ReturnValDir::TRAVERSING_DIR_CONTINUE:
-                traverseDirectory<followSymlinks>(fullName, rv.subDirCb, level + 1);
-                break;
-            }
-        }
-        else //a file or symlink that is followed...
-        {
-            TraverseCallback::FileInfo details;
-
-            if (isSymbolicLink) //dereference symlinks!
-            {
-                if (!setWin32FileInformationFromSymlink(fullName, details))
-                {
-                    //broken symlink...
-                    details.lastWriteTimeRaw = 0; //we are not interested in the modifiation time of the link
-                    details.fileSize         = 0;
-                }
-            }
-            else
-                setWin32FileInformation(fileMetaData.ftLastWriteTime, fileMetaData.nFileSizeHigh, fileMetaData.nFileSizeLow, details);
-
-            sink->onFile(shortName, fullName, details);
-        }
-    }
-    while (::FindNextFile(searchHandle,	   // handle to search
-                          &fileMetaData)); // pointer to structure for data on found file
-
-    const DWORD lastError = ::GetLastError();
-    if (lastError == ERROR_NO_MORE_FILES)
-        return; //everything okay
-
-    //else: we have a problem... report it:
-    const wxString errorMessage = wxString(_("Error traversing directory:")) + wxT("\n\"") + zToWx(directory) + wxT("\"") ;
-    sink->onError(errorMessage + wxT("\n\n") + FreeFileSync::getLastErrorFormatted(lastError));
-    return;
-
-#elif defined FFS_LINUX
-    DIR* dirObj = ::opendir(directory.c_str()); //directory must NOT end with path separator, except "/"
-    if (dirObj == NULL)
-    {
-        const wxString errorMessage = wxString(_("Error traversing directory:")) + wxT("\n\"") + zToWx(directory) + wxT("\"") ;
-        sink->onError(errorMessage + wxT("\n\n") + FreeFileSync::getLastErrorFormatted());
-        return;
-    }
-
-    boost::shared_ptr<DIR> dummy(dirObj, &::closedir); //never close NULL handles! -> crash
-
-    while (true)
-    {
-        errno = 0; //set errno to 0 as unfortunately this isn't done when readdir() returns NULL because it can't find any files
-        struct dirent* dirEntry = ::readdir(dirObj);
-        if (dirEntry == NULL)
-        {
-            if (errno == 0)
-                return; //everything okay
-
-            //else: we have a problem... report it:
-            const wxString errorMessage = wxString(_("Error traversing directory:")) + wxT("\n\"") + zToWx(directory) + wxT("\"") ;
-            sink->onError(errorMessage + wxT("\n\n") + FreeFileSync::getLastErrorFormatted());
-            return;
-        }
-
-        //don't return "." and ".."
-        const DefaultChar* const shortName = dirEntry->d_name;
-        if (      shortName[0] == wxChar('.') &&
-                  ((shortName[1] == wxChar('.') && shortName[2] == wxChar('\0')) ||
-                   shortName[1] == wxChar('\0')))
-            continue;
-
-        const Zstring fullName = directory.EndsWith(globalFunctions::FILE_NAME_SEPARATOR) ? //e.g. "/"
-                                 directory + shortName :
-                                 directory + globalFunctions::FILE_NAME_SEPARATOR + shortName;
-
-        struct stat fileInfo;
-        if (::lstat(fullName.c_str(), &fileInfo) != 0) //lstat() does not resolve symlinks
-        {
-            const wxString errorMessage = wxString(_("Error reading file attributes:")) + wxT("\n\"") + zToWx(fullName) + wxT("\"");
-            sink->onError(errorMessage + wxT("\n\n") + FreeFileSync::getLastErrorFormatted());
-            continue;
-        }
-
-        const bool isSymbolicLink = S_ISLNK(fileInfo.st_mode);
-
-        if (isSymbolicLink)
-        {
-            if (followSymlinks) //on Linux Symlinks need to be followed to evaluate whether they point to a file or directory
-            {
-                if (::stat(fullName.c_str(), &fileInfo) != 0) //stat() resolves symlinks
-                {
-                    //a broken symbolic link
-                    TraverseCallback::FileInfo details;
-                    details.lastWriteTimeRaw = 0; //we are not interested in the modifiation time of the link
-                    details.fileSize         = 0;
-                    sink->onFile(shortName, fullName, details); //report broken symlink as file!
-                    continue;
-                }
-            }
-            else //evaluate symlink directly
-            {
-                TraverseCallback::SymlinkInfo details;
-                details.lastWriteTimeRaw = fileInfo.st_mtime; //UTC time(ANSI C format); unit: 1 second
-                details.targetPath       = getSymlinkTarget(fullName); //throw(); returns empty string on error
-                details.dirLink          = ::stat(fullName.c_str(), &fileInfo) == 0 && S_ISDIR(fileInfo.st_mode); //S_ISDIR and S_ISLNK are mutually exclusive on Linux => need to follow link
-                sink->onSymlink(shortName, fullName, details);
-                continue;
-            }
-        }
-
-        //fileInfo contains dereferenced data in any case from here on
-
-        if (S_ISDIR(fileInfo.st_mode)) //a directory... cannot be a symlink on Linux in this case
-        {
-            const TraverseCallback::ReturnValDir rv = sink->onDir(shortName, fullName);
-            switch (rv.returnCode)
-            {
-            case TraverseCallback::ReturnValDir::TRAVERSING_DIR_IGNORE:
-                break;
-
-            case TraverseCallback::ReturnValDir::TRAVERSING_DIR_CONTINUE:
-                traverseDirectory<followSymlinks>(fullName, rv.subDirCb, level + 1);
-                break;
-            }
-        }
-        else //a file... (or symlink; pathological!)
-        {
-            TraverseCallback::FileInfo details;
-            details.lastWriteTimeRaw = fileInfo.st_mtime; //UTC time(ANSI C format); unit: 1 second
-            details.fileSize         = fileInfo.st_size;
-
-            sink->onFile(shortName, fullName, details);
-        }
-    }
-#endif
-}
-
-
-void FreeFileSync::traverseFolder(const Zstring& directory,
-                                  bool followSymlinks,
-                                  TraverseCallback* sink)
-{
-#ifdef FFS_WIN
-    const Zstring& directoryFormatted = directory;
-#elif defined FFS_LINUX
-    const Zstring directoryFormatted = //remove trailing slash
-        directory.size() > 1 && directory.EndsWith(globalFunctions::FILE_NAME_SEPARATOR) ?  //exception: allow '/'
-        directory.BeforeLast(globalFunctions::FILE_NAME_SEPARATOR) :
-        directory;
-#endif
-
-    if (followSymlinks)
-        traverseDirectory<true>(directoryFormatted, sink, 0);
-    else
-        traverseDirectory<false>(directoryFormatted, sink, 0);
-}