/**************************************************************************** ** ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/ ** ** This file is part of the QtCore module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** GNU Lesser General Public License Usage ** This file may be used under the terms of the GNU Lesser General Public ** License version 2.1 as published by the Free Software Foundation and ** appearing in the file LICENSE.LGPL included in the packaging of this ** file. Please review the following information to ensure the GNU Lesser ** General Public License version 2.1 requirements will be met: ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** ** In addition, as a special exception, Nokia gives you certain additional ** rights. These rights are described in the Nokia Qt LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU General ** Public License version 3.0 as published by the Free Software Foundation ** and appearing in the file LICENSE.GPL included in the packaging of this ** file. Please review the following information to ensure the GNU General ** Public License version 3.0 requirements will be met: ** http://www.gnu.org/copyleft/gpl.html. ** ** Other Usage ** Alternatively, this file may be used in accordance with the terms and ** conditions contained in a signed written agreement between you and Nokia. ** ** ** ** ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "qfilesystemengine_p.h" #define _POSIX_ #include "qplatformdefs.h" #include "qabstractfileengine.h" #include "private/qfsfileengine_p.h" #include #include #include "qfile.h" #include "qdir.h" #include "private/qmutexpool_p.h" #include "qvarlengtharray.h" #include "qdatetime.h" #include "qt_windows.h" #if !defined(Q_OS_WINCE) # include # include # include #else # include #endif #include #include #include #include #include #include #define SECURITY_WIN32 #include #ifndef SPI_GETPLATFORMTYPE #define SPI_GETPLATFORMTYPE 257 #endif #ifndef PATH_MAX #define PATH_MAX FILENAME_MAX #endif #ifndef _INTPTR_T_DEFINED #ifdef _WIN64 typedef __int64 intptr_t; #else #ifdef _W64 typedef _W64 int intptr_t; #else typedef INT_PTR intptr_t; #endif #endif #define _INTPTR_T_DEFINED #endif #ifndef INVALID_FILE_ATTRIBUTES # define INVALID_FILE_ATTRIBUTES (DWORD (-1)) #endif #if !defined(Q_OS_WINCE) # if !defined(REPARSE_DATA_BUFFER_HEADER_SIZE) 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 // !defined(REPARSE_DATA_BUFFER_HEADER_SIZE) # ifndef MAXIMUM_REPARSE_DATA_BUFFER_SIZE # define MAXIMUM_REPARSE_DATA_BUFFER_SIZE 16384 # endif # ifndef IO_REPARSE_TAG_SYMLINK # define IO_REPARSE_TAG_SYMLINK (0xA000000CL) # endif # ifndef FSCTL_GET_REPARSE_POINT # define FSCTL_GET_REPARSE_POINT CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 42, METHOD_BUFFERED, FILE_ANY_ACCESS) # endif #endif // !defined(Q_OS_WINCE) QT_BEGIN_NAMESPACE Q_CORE_EXPORT int qt_ntfs_permission_lookup = 0; #if defined(Q_OS_WINCE) static QString qfsPrivateCurrentDir = QLatin1String(""); // As none of the functions we try to resolve do exist on Windows CE // we use QT_NO_LIBRARY to shorten everything up a little bit. #define QT_NO_LIBRARY 1 #endif #if !defined(QT_NO_LIBRARY) QT_BEGIN_INCLUDE_NAMESPACE typedef DWORD (WINAPI *PtrGetNamedSecurityInfoW)(LPWSTR, SE_OBJECT_TYPE, SECURITY_INFORMATION, PSID*, PSID*, PACL*, PACL*, PSECURITY_DESCRIPTOR*); static PtrGetNamedSecurityInfoW ptrGetNamedSecurityInfoW = 0; typedef BOOL (WINAPI *PtrLookupAccountSidW)(LPCWSTR, PSID, LPWSTR, LPDWORD, LPWSTR, LPDWORD, PSID_NAME_USE); static PtrLookupAccountSidW ptrLookupAccountSidW = 0; typedef VOID (WINAPI *PtrBuildTrusteeWithSidW)(PTRUSTEE_W, PSID); static PtrBuildTrusteeWithSidW ptrBuildTrusteeWithSidW = 0; typedef DWORD (WINAPI *PtrGetEffectiveRightsFromAclW)(PACL, PTRUSTEE_W, OUT PACCESS_MASK); static PtrGetEffectiveRightsFromAclW ptrGetEffectiveRightsFromAclW = 0; typedef BOOL (WINAPI *PtrGetUserProfileDirectoryW)(HANDLE, LPWSTR, LPDWORD); static PtrGetUserProfileDirectoryW ptrGetUserProfileDirectoryW = 0; typedef BOOL (WINAPI *PtrGetVolumePathNamesForVolumeNameW)(LPCWSTR,LPWSTR,DWORD,PDWORD); static PtrGetVolumePathNamesForVolumeNameW ptrGetVolumePathNamesForVolumeNameW = 0; QT_END_INCLUDE_NAMESPACE static TRUSTEE_W currentUserTrusteeW; static TRUSTEE_W worldTrusteeW; static PSID currentUserSID = 0; static PSID worldSID = 0; /* Deletes the allocated SIDs during global static cleanup */ class SidCleanup { public: ~SidCleanup(); }; SidCleanup::~SidCleanup() { qFree(currentUserSID); currentUserSID = 0; // worldSID was allocated with AllocateAndInitializeSid so it needs to be freed with FreeSid if (worldSID) { ::FreeSid(worldSID); worldSID = 0; } } Q_GLOBAL_STATIC(SidCleanup, initSidCleanup) static void resolveLibs() { static bool triedResolve = false; if (!triedResolve) { // need to resolve the security info functions // protect initialization #ifndef QT_NO_THREAD QMutexLocker locker(QMutexPool::globalInstanceGet(&triedResolve)); // check triedResolve again, since another thread may have already // done the initialization if (triedResolve) { // another thread did initialize the security function pointers, // so we shouldn't do it again. return; } #endif #if !defined(Q_OS_WINCE) QSystemLibrary advapi32(QLatin1String("advapi32")); if (advapi32.load()) { ptrGetNamedSecurityInfoW = (PtrGetNamedSecurityInfoW)advapi32.resolve("GetNamedSecurityInfoW"); ptrLookupAccountSidW = (PtrLookupAccountSidW)advapi32.resolve("LookupAccountSidW"); ptrBuildTrusteeWithSidW = (PtrBuildTrusteeWithSidW)advapi32.resolve("BuildTrusteeWithSidW"); ptrGetEffectiveRightsFromAclW = (PtrGetEffectiveRightsFromAclW)advapi32.resolve("GetEffectiveRightsFromAclW"); } if (ptrBuildTrusteeWithSidW) { // Create TRUSTEE for current user HANDLE hnd = ::GetCurrentProcess(); HANDLE token = 0; initSidCleanup(); if (::OpenProcessToken(hnd, TOKEN_QUERY, &token)) { DWORD retsize = 0; // GetTokenInformation requires a buffer big enough for the TOKEN_USER struct and // the SID struct. Since the SID struct can have variable number of subauthorities // tacked at the end, its size is variable. Obtain the required size by first // doing a dummy GetTokenInformation call. ::GetTokenInformation(token, TokenUser, 0, 0, &retsize); if (retsize) { void *tokenBuffer = qMalloc(retsize); if (::GetTokenInformation(token, TokenUser, tokenBuffer, retsize, &retsize)) { PSID tokenSid = reinterpret_cast(tokenBuffer)->User.Sid; DWORD sidLen = ::GetLengthSid(tokenSid); currentUserSID = reinterpret_cast(qMalloc(sidLen)); if (::CopySid(sidLen, currentUserSID, tokenSid)) ptrBuildTrusteeWithSidW(¤tUserTrusteeW, currentUserSID); } qFree(tokenBuffer); } ::CloseHandle(token); } typedef BOOL (WINAPI *PtrAllocateAndInitializeSid)(PSID_IDENTIFIER_AUTHORITY, BYTE, DWORD, DWORD, DWORD, DWORD, DWORD, DWORD, DWORD, DWORD, PSID*); PtrAllocateAndInitializeSid ptrAllocateAndInitializeSid = (PtrAllocateAndInitializeSid)advapi32.resolve("AllocateAndInitializeSid"); if (ptrAllocateAndInitializeSid) { // Create TRUSTEE for Everyone (World) SID_IDENTIFIER_AUTHORITY worldAuth = { SECURITY_WORLD_SID_AUTHORITY }; if (ptrAllocateAndInitializeSid(&worldAuth, 1, SECURITY_WORLD_RID, 0, 0, 0, 0, 0, 0, 0, &worldSID)) ptrBuildTrusteeWithSidW(&worldTrusteeW, worldSID); } } QSystemLibrary userenv(QLatin1String("userenv")); if (userenv.load()) ptrGetUserProfileDirectoryW = (PtrGetUserProfileDirectoryW)userenv.resolve("GetUserProfileDirectoryW"); QSystemLibrary kernel32(QLatin1String("kernel32")); if (kernel32.load()) ptrGetVolumePathNamesForVolumeNameW = (PtrGetVolumePathNamesForVolumeNameW)kernel32.resolve("GetVolumePathNamesForVolumeNameW"); #endif triedResolve = true; } } #endif // QT_NO_LIBRARY typedef DWORD (WINAPI *PtrNetShareEnum)(LPWSTR, DWORD, LPBYTE*, DWORD, LPDWORD, LPDWORD, LPDWORD); static PtrNetShareEnum ptrNetShareEnum = 0; typedef DWORD (WINAPI *PtrNetApiBufferFree)(LPVOID); static PtrNetApiBufferFree ptrNetApiBufferFree = 0; typedef struct _SHARE_INFO_1 { LPWSTR shi1_netname; DWORD shi1_type; LPWSTR shi1_remark; } SHARE_INFO_1; static bool resolveUNCLibs() { static bool triedResolve = false; if (!triedResolve) { #ifndef QT_NO_THREAD QMutexLocker locker(QMutexPool::globalInstanceGet(&triedResolve)); if (triedResolve) { return ptrNetShareEnum && ptrNetApiBufferFree; } #endif #if !defined(Q_OS_WINCE) QSystemLibrary netapi32(QLatin1String("Netapi32")); if (netapi32.load()) { ptrNetShareEnum = (PtrNetShareEnum)netapi32.resolve("NetShareEnum"); ptrNetApiBufferFree = (PtrNetApiBufferFree)netapi32.resolve("NetApiBufferFree"); } #endif triedResolve = true; } return ptrNetShareEnum && ptrNetApiBufferFree; } static QString readSymLink(const QFileSystemEntry &link) { QString result; #if !defined(Q_OS_WINCE) HANDLE handle = CreateFile((wchar_t*)link.nativeFilePath().utf16(), FILE_READ_EA, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OPEN_REPARSE_POINT, 0); if (handle != INVALID_HANDLE_VALUE) { DWORD bufsize = MAXIMUM_REPARSE_DATA_BUFFER_SIZE; REPARSE_DATA_BUFFER *rdb = (REPARSE_DATA_BUFFER*)qMalloc(bufsize); DWORD retsize = 0; if (::DeviceIoControl(handle, FSCTL_GET_REPARSE_POINT, 0, 0, rdb, bufsize, &retsize, 0)) { if (rdb->ReparseTag == IO_REPARSE_TAG_MOUNT_POINT) { int length = rdb->MountPointReparseBuffer.SubstituteNameLength / sizeof(wchar_t); int offset = rdb->MountPointReparseBuffer.SubstituteNameOffset / sizeof(wchar_t); const wchar_t* PathBuffer = &rdb->MountPointReparseBuffer.PathBuffer[offset]; result = QString::fromWCharArray(PathBuffer, length); } else if (rdb->ReparseTag == IO_REPARSE_TAG_SYMLINK) { int length = rdb->SymbolicLinkReparseBuffer.SubstituteNameLength / sizeof(wchar_t); int offset = rdb->SymbolicLinkReparseBuffer.SubstituteNameOffset / sizeof(wchar_t); const wchar_t* PathBuffer = &rdb->SymbolicLinkReparseBuffer.PathBuffer[offset]; result = QString::fromWCharArray(PathBuffer, length); } // cut-off "//?/" and "/??/" if (result.size() > 4 && result.at(0) == QLatin1Char('\\') && result.at(2) == QLatin1Char('?') && result.at(3) == QLatin1Char('\\')) result = result.mid(4); } qFree(rdb); CloseHandle(handle); #if !defined(QT_NO_LIBRARY) resolveLibs(); if (ptrGetVolumePathNamesForVolumeNameW) { QRegExp matchVolName(QLatin1String("^Volume\\{([a-z]|[0-9]|-)+\\}\\\\"), Qt::CaseInsensitive); if(matchVolName.indexIn(result) == 0) { DWORD len; wchar_t buffer[MAX_PATH]; QString volumeName = result.mid(0, matchVolName.matchedLength()).prepend(QLatin1String("\\\\?\\")); if(ptrGetVolumePathNamesForVolumeNameW((wchar_t*)volumeName.utf16(), buffer, MAX_PATH, &len) != 0) result.replace(0,matchVolName.matchedLength(), QString::fromWCharArray(buffer)); } } #endif } #else Q_UNUSED(link); #endif // Q_OS_WINCE return result; } static QString readLink(const QFileSystemEntry &link) { #if !defined(Q_OS_WINCE) #if !defined(QT_NO_LIBRARY) && !defined(Q_CC_MWERKS) QString ret; bool neededCoInit = false; IShellLink *psl; // pointer to IShellLink i/f WIN32_FIND_DATA wfd; wchar_t szGotPath[MAX_PATH]; // Get pointer to the IShellLink interface. HRESULT hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, IID_IShellLink, (LPVOID *)&psl); if (hres == CO_E_NOTINITIALIZED) { // COM was not initialized neededCoInit = true; CoInitialize(NULL); hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, IID_IShellLink, (LPVOID *)&psl); } if (SUCCEEDED(hres)) { // Get pointer to the IPersistFile interface. IPersistFile *ppf; hres = psl->QueryInterface(IID_IPersistFile, (LPVOID *)&ppf); if (SUCCEEDED(hres)) { hres = ppf->Load((LPOLESTR)link.nativeFilePath().utf16(), STGM_READ); //The original path of the link is retrieved. If the file/folder //was moved, the return value still have the old path. if (SUCCEEDED(hres)) { if (psl->GetPath(szGotPath, MAX_PATH, &wfd, SLGP_UNCPRIORITY) == NOERROR) ret = QString::fromWCharArray(szGotPath); } ppf->Release(); } psl->Release(); } if (neededCoInit) CoUninitialize(); return ret; #else Q_UNUSED(link); return QString(); #endif // QT_NO_LIBRARY #else wchar_t target[MAX_PATH]; QString result; if (SHGetShortcutTarget((wchar_t*)QFileInfo(link.filePath()).absoluteFilePath().replace(QLatin1Char('/'),QLatin1Char('\\')).utf16(), target, MAX_PATH)) { result = QString::fromWCharArray(target); if (result.startsWith(QLatin1Char('"'))) result.remove(0,1); if (result.endsWith(QLatin1Char('"'))) result.remove(result.size()-1,1); } return result; #endif // Q_OS_WINCE } static bool uncShareExists(const QString &server) { // This code assumes the UNC path is always like \\?\UNC\server... QStringList parts = server.split(QLatin1Char('\\'), QString::SkipEmptyParts); if (parts.count() >= 3) { QStringList shares; if (QFileSystemEngine::uncListSharesOnServer(QLatin1String("\\\\") + parts.at(2), &shares)) return parts.count() >= 4 ? shares.contains(parts.at(3), Qt::CaseInsensitive) : true; } return false; } static inline bool getFindData(QString path, WIN32_FIND_DATA &findData) { // path should not end with a trailing slash while (path.endsWith(QLatin1Char('\\'))) path.chop(1); // can't handle drives if (!path.endsWith(QLatin1Char(':'))) { HANDLE hFind = ::FindFirstFile((wchar_t*)path.utf16(), &findData); if (hFind != INVALID_HANDLE_VALUE) { ::FindClose(hFind); return true; } } return false; } bool QFileSystemEngine::uncListSharesOnServer(const QString &server, QStringList *list) { if (resolveUNCLibs()) { SHARE_INFO_1 *BufPtr, *p; DWORD res; DWORD er = 0, tr = 0, resume = 0, i; do { res = ptrNetShareEnum((wchar_t*)server.utf16(), 1, (LPBYTE *)&BufPtr, DWORD(-1), &er, &tr, &resume); if (res == ERROR_SUCCESS || res == ERROR_MORE_DATA) { p = BufPtr; for (i = 1; i <= er; ++i) { if (list && p->shi1_type == 0) list->append(QString::fromWCharArray(p->shi1_netname)); p++; } } ptrNetApiBufferFree(BufPtr); } while (res == ERROR_MORE_DATA); return res == ERROR_SUCCESS; } return false; } void QFileSystemEngine::clearWinStatData(QFileSystemMetaData &data) { data.size_ = 0; data.fileAttribute_ = 0; data.creationTime_ = FILETIME(); data.lastAccessTime_ = FILETIME(); data.lastWriteTime_ = FILETIME(); } bool QFileSystemEngine::isCaseSensitive() { return false; } //static QFileSystemEntry QFileSystemEngine::getLinkTarget(const QFileSystemEntry &link, QFileSystemMetaData &data) { if (data.missingFlags(QFileSystemMetaData::LinkType)) QFileSystemEngine::fillMetaData(link, data, QFileSystemMetaData::LinkType); QString ret; if (data.isLnkFile()) ret = readLink(link); else if (data.isLink()) ret = readSymLink(link); return QFileSystemEntry(ret); } //static QFileSystemEntry QFileSystemEngine::canonicalName(const QFileSystemEntry &entry, QFileSystemMetaData &data) { if (data.missingFlags(QFileSystemMetaData::ExistsAttribute)) QFileSystemEngine::fillMetaData(entry, data, QFileSystemMetaData::ExistsAttribute); if (data.exists()) return QFileSystemEntry(slowCanonicalized(absoluteName(entry).filePath())); else return QFileSystemEntry(); } //static QString QFileSystemEngine::nativeAbsoluteFilePath(const QString &path) { // can be //server or //server/share QString absPath; #if !defined(Q_OS_WINCE) QVarLengthArray buf(qMax(MAX_PATH, path.size() + 1)); wchar_t *fileName = 0; DWORD retLen = GetFullPathName((wchar_t*)path.utf16(), buf.size(), buf.data(), &fileName); if (retLen > (DWORD)buf.size()) { buf.resize(retLen); retLen = GetFullPathName((wchar_t*)path.utf16(), buf.size(), buf.data(), &fileName); } if (retLen != 0) absPath = QString::fromWCharArray(buf.data(), retLen); #else if (path.startsWith(QLatin1Char('/')) || path.startsWith(QLatin1Char('\\'))) absPath = QDir::toNativeSeparators(path); else absPath = QDir::toNativeSeparators(QDir::cleanPath(qfsPrivateCurrentDir + QLatin1Char('/') + path)); #endif // This is really ugly, but GetFullPathName strips off whitespace at the end. // If you for instance write ". " in the lineedit of QFileDialog, // (which is an invalid filename) this function will strip the space off and viola, // the file is later reported as existing. Therefore, we re-add the whitespace that // was at the end of path in order to keep the filename invalid. if (!path.isEmpty() && path.at(path.size() - 1) == QLatin1Char(' ')) absPath.append(QLatin1Char(' ')); return absPath; } //static QFileSystemEntry QFileSystemEngine::absoluteName(const QFileSystemEntry &entry) { QString ret; if (!entry.isRelative()) { #if !defined(Q_OS_WINCE) if (entry.isAbsolute() && entry.isClean()) { ret = entry.filePath(); } else { ret = QDir::fromNativeSeparators(nativeAbsoluteFilePath(entry.filePath())); } #else ret = entry.filePath(); #endif } else { ret = QDir::cleanPath(QDir::currentPath() + QLatin1Char('/') + entry.filePath()); } // The path should be absolute at this point. // From the docs : // Absolute paths begin with the directory separator "/" // (optionally preceded by a drive specification under Windows). if (ret.at(0) != QLatin1Char('/')) { Q_ASSERT(ret.length() >= 2); Q_ASSERT(ret.at(0).isLetter()); Q_ASSERT(ret.at(1) == QLatin1Char(':')); // Force uppercase drive letters. ret[0] = ret.at(0).toUpper(); } return QFileSystemEntry(ret, QFileSystemEntry::FromInternalPath()); } //static QString QFileSystemEngine::owner(const QFileSystemEntry &entry, QAbstractFileEngine::FileOwner own) { QString name; #if !defined(QT_NO_LIBRARY) extern int qt_ntfs_permission_lookup; if((qt_ntfs_permission_lookup > 0) && (QSysInfo::WindowsVersion & QSysInfo::WV_NT_based)) { resolveLibs(); if (ptrGetNamedSecurityInfoW && ptrLookupAccountSidW) { PSID pOwner = 0; PSECURITY_DESCRIPTOR pSD; if (ptrGetNamedSecurityInfoW((wchar_t*)entry.nativeFilePath().utf16(), SE_FILE_OBJECT, own == QAbstractFileEngine::OwnerGroup ? GROUP_SECURITY_INFORMATION : OWNER_SECURITY_INFORMATION, own == QAbstractFileEngine::OwnerUser ? &pOwner : 0, own == QAbstractFileEngine::OwnerGroup ? &pOwner : 0, 0, 0, &pSD) == ERROR_SUCCESS) { DWORD lowner = 64; DWORD ldomain = 64; QVarLengthArray owner(lowner); QVarLengthArray domain(ldomain); SID_NAME_USE use = SidTypeUnknown; // First call, to determine size of the strings (with '\0'). if (!ptrLookupAccountSidW(NULL, pOwner, (LPWSTR)owner.data(), &lowner, (LPWSTR)domain.data(), &ldomain, (SID_NAME_USE*)&use)) { if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { if (lowner > (DWORD)owner.size()) owner.resize(lowner); if (ldomain > (DWORD)domain.size()) domain.resize(ldomain); // Second call, try on resized buf-s if (!ptrLookupAccountSidW(NULL, pOwner, (LPWSTR)owner.data(), &lowner, (LPWSTR)domain.data(), &ldomain, (SID_NAME_USE*)&use)) { lowner = 0; } } else { lowner = 0; } } if (lowner != 0) name = QString::fromWCharArray(owner.data()); LocalFree(pSD); } } } #else Q_UNUSED(entry); Q_UNUSED(own); #endif return name; } //static bool QFileSystemEngine::fillPermissions(const QFileSystemEntry &entry, QFileSystemMetaData &data, QFileSystemMetaData::MetaDataFlags what) { QAbstractFileEngine::FileFlags ret = 0; #if !defined(QT_NO_LIBRARY) if((qt_ntfs_permission_lookup > 0) && (QSysInfo::WindowsVersion & QSysInfo::WV_NT_based)) { resolveLibs(); if(ptrGetNamedSecurityInfoW && ptrBuildTrusteeWithSidW && ptrGetEffectiveRightsFromAclW) { enum { ReadMask = 0x00000001, WriteMask = 0x00000002, ExecMask = 0x00000020 }; QString fname = entry.filePath(); PSID pOwner = 0; PSID pGroup = 0; PACL pDacl; PSECURITY_DESCRIPTOR pSD; DWORD res = ptrGetNamedSecurityInfoW((wchar_t*)fname.utf16(), SE_FILE_OBJECT, OWNER_SECURITY_INFORMATION | GROUP_SECURITY_INFORMATION | DACL_SECURITY_INFORMATION, &pOwner, &pGroup, &pDacl, 0, &pSD); if(res == ERROR_SUCCESS) { ACCESS_MASK access_mask; TRUSTEE_W trustee; if (what & QFileSystemMetaData::UserPermissions) { // user data.knownFlagsMask |= QFileSystemMetaData::UserPermissions; if(ptrGetEffectiveRightsFromAclW(pDacl, ¤tUserTrusteeW, &access_mask) != ERROR_SUCCESS) access_mask = (ACCESS_MASK)-1; if(access_mask & ReadMask) data.entryFlags |= QFileSystemMetaData::UserReadPermission; if(access_mask & WriteMask) data.entryFlags|= QFileSystemMetaData::UserWritePermission; if(access_mask & ExecMask) data.entryFlags|= QFileSystemMetaData::UserExecutePermission; } if (what & QFileSystemMetaData::OwnerPermissions) { // owner data.knownFlagsMask |= QFileSystemMetaData::OwnerPermissions; ptrBuildTrusteeWithSidW(&trustee, pOwner); if(ptrGetEffectiveRightsFromAclW(pDacl, &trustee, &access_mask) != ERROR_SUCCESS) access_mask = (ACCESS_MASK)-1; if(access_mask & ReadMask) data.entryFlags |= QFileSystemMetaData::OwnerReadPermission; if(access_mask & WriteMask) data.entryFlags |= QFileSystemMetaData::OwnerWritePermission; if(access_mask & ExecMask) data.entryFlags |= QFileSystemMetaData::OwnerExecutePermission; } if (what & QFileSystemMetaData::GroupPermissions) { // group data.knownFlagsMask |= QFileSystemMetaData::GroupPermissions; ptrBuildTrusteeWithSidW(&trustee, pGroup); if(ptrGetEffectiveRightsFromAclW(pDacl, &trustee, &access_mask) != ERROR_SUCCESS) access_mask = (ACCESS_MASK)-1; if(access_mask & ReadMask) data.entryFlags |= QFileSystemMetaData::GroupReadPermission; if(access_mask & WriteMask) data.entryFlags |= QFileSystemMetaData::GroupWritePermission; if(access_mask & ExecMask) data.entryFlags |= QFileSystemMetaData::GroupExecutePermission; } if (what & QFileSystemMetaData::OtherPermissions) { // other (world) data.knownFlagsMask |= QFileSystemMetaData::OtherPermissions; if(ptrGetEffectiveRightsFromAclW(pDacl, &worldTrusteeW, &access_mask) != ERROR_SUCCESS) access_mask = (ACCESS_MASK)-1; // ### if(access_mask & ReadMask) data.entryFlags |= QFileSystemMetaData::OtherReadPermission; if(access_mask & WriteMask) data.entryFlags |= QFileSystemMetaData::OtherWritePermission; if(access_mask & ExecMask) data.entryFlags |= QFileSystemMetaData::OwnerExecutePermission; } LocalFree(pSD); } } } else #endif { //### what to do with permissions if we don't use NTFS // for now just add all permissions and what about exe missions ?? // also qt_ntfs_permission_lookup is now not set by default ... should it ? data.entryFlags |= QFileSystemMetaData::OwnerReadPermission | QFileSystemMetaData::GroupReadPermission | QFileSystemMetaData::OtherReadPermission; if (!(data.fileAttribute_ & FILE_ATTRIBUTE_READONLY)) { data.entryFlags |= QFileSystemMetaData::OwnerWritePermission | QFileSystemMetaData::GroupWritePermission | QFileSystemMetaData::OtherWritePermission; } QString fname = entry.filePath(); QString ext = fname.right(4).toLower(); if (data.isDirectory() || ext == QLatin1String(".exe") || ext == QLatin1String(".com") || ext == QLatin1String(".bat") || ext == QLatin1String(".pif") || ext == QLatin1String(".cmd")) { data.entryFlags |= QFileSystemMetaData::OwnerExecutePermission | QFileSystemMetaData::GroupExecutePermission | QFileSystemMetaData::OtherExecutePermission | QFileSystemMetaData::UserExecutePermission; } data.knownFlagsMask |= QFileSystemMetaData::OwnerPermissions | QFileSystemMetaData::GroupPermissions | QFileSystemMetaData::OtherPermissions | QFileSystemMetaData::UserExecutePermission; // calculate user permissions if (what & QFileSystemMetaData::UserReadPermission) { if (::_waccess((wchar_t*)entry.nativeFilePath().utf16(), R_OK) == 0) data.entryFlags |= QFileSystemMetaData::UserReadPermission; data.knownFlagsMask |= QFileSystemMetaData::UserReadPermission; } if (what & QFileSystemMetaData::UserWritePermission) { if (::_waccess((wchar_t*)entry.nativeFilePath().utf16(), W_OK) == 0) data.entryFlags |= QFileSystemMetaData::UserWritePermission; data.knownFlagsMask |= QFileSystemMetaData::UserWritePermission; } } return data.hasFlags(what); } static bool tryDriveUNCFallback(const QFileSystemEntry &fname, QFileSystemMetaData &data) { bool entryExists = false; DWORD fileAttrib = 0; #if !defined(Q_OS_WINCE) if (fname.isDriveRoot()) { // a valid drive ?? DWORD drivesBitmask = ::GetLogicalDrives(); int drivebit = 1 << (fname.filePath().at(0).toUpper().unicode() - QLatin1Char('A').unicode()); if (drivesBitmask & drivebit) { fileAttrib = FILE_ATTRIBUTE_DIRECTORY | FILE_ATTRIBUTE_SYSTEM; entryExists = true; } } else { #endif const QString &path = fname.nativeFilePath(); bool is_dir = false; if (path.startsWith(QLatin1String("\\\\?\\UNC"))) { // UNC - stat doesn't work for all cases (Windows bug) int s = path.indexOf(path.at(0),7); if (s > 0) { // "\\?\UNC\server\..." s = path.indexOf(path.at(0),s+1); if (s > 0) { // "\\?\UNC\server\share\..." if (s == path.size() - 1) { // "\\?\UNC\server\share\" is_dir = true; } else { // "\\?\UNC\server\share\notfound" } } else { // "\\?\UNC\server\share" is_dir = true; } } else { // "\\?\UNC\server" is_dir = true; } } if (is_dir && uncShareExists(path)) { // looks like a UNC dir, is a dir. fileAttrib = FILE_ATTRIBUTE_DIRECTORY; entryExists = true; } #if !defined(Q_OS_WINCE) } #endif if (entryExists) data.fillFromFileAttribute(fileAttrib); return entryExists; } static bool tryFindFallback(const QFileSystemEntry &fname, QFileSystemMetaData &data) { bool filledData = false; // This assumes the last call to a Windows API failed. int errorCode = GetLastError(); if (errorCode == ERROR_ACCESS_DENIED || errorCode == ERROR_SHARING_VIOLATION) { WIN32_FIND_DATA findData; if (getFindData(fname.nativeFilePath(), findData) && findData.dwFileAttributes != INVALID_FILE_ATTRIBUTES) { data.fillFromFindData(findData, true, fname.isDriveRoot()); filledData = true; } } return filledData; } #if !defined(Q_OS_WINCE) //static bool QFileSystemEngine::fillMetaData(int fd, QFileSystemMetaData &data, QFileSystemMetaData::MetaDataFlags what) { HANDLE fHandle = (HANDLE)_get_osfhandle(fd); if (fHandle != INVALID_HANDLE_VALUE) { return fillMetaData(fHandle, data, what); } return false; } #endif //static bool QFileSystemEngine::fillMetaData(HANDLE fHandle, QFileSystemMetaData &data, QFileSystemMetaData::MetaDataFlags what) { data.entryFlags &= ~what; clearWinStatData(data); BY_HANDLE_FILE_INFORMATION fileInfo; UINT oldmode = SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOOPENFILEERRORBOX); if (GetFileInformationByHandle(fHandle , &fileInfo)) { data.fillFromFindInfo(fileInfo); } SetErrorMode(oldmode); return data.hasFlags(what); } //static bool QFileSystemEngine::fillMetaData(const QFileSystemEntry &entry, QFileSystemMetaData &data, QFileSystemMetaData::MetaDataFlags what) { what |= QFileSystemMetaData::WinLnkType | QFileSystemMetaData::WinStatFlags; data.entryFlags &= ~what; QFileSystemEntry fname; data.knownFlagsMask |= QFileSystemMetaData::WinLnkType; if(entry.filePath().endsWith(QLatin1String(".lnk"))) { data.entryFlags |= QFileSystemMetaData::WinLnkType; fname = QFileSystemEntry(readLink(entry)); } else { fname = entry; } if (fname.isEmpty()) { data.knownFlagsMask |= what; clearWinStatData(data); return false; } if (what & QFileSystemMetaData::WinStatFlags) { UINT oldmode = SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOOPENFILEERRORBOX); clearWinStatData(data); WIN32_FIND_DATA findData; // The memory structure for WIN32_FIND_DATA is same as WIN32_FILE_ATTRIBUTE_DATA // for all members used by fillFindData(). bool ok = ::GetFileAttributesEx((wchar_t*)fname.nativeFilePath().utf16(), GetFileExInfoStandard, reinterpret_cast(&findData)); if (ok) { data.fillFromFindData(findData, false, fname.isDriveRoot()); } else { if (!tryFindFallback(fname, data)) tryDriveUNCFallback(fname, data); } SetErrorMode(oldmode); } if (what & QFileSystemMetaData::Permissions) fillPermissions(fname, data, what); if ((what & QFileSystemMetaData::LinkType) && data.missingFlags(QFileSystemMetaData::LinkType)) { data.knownFlagsMask |= QFileSystemMetaData::LinkType; if (data.fileAttribute_ & FILE_ATTRIBUTE_REPARSE_POINT) { WIN32_FIND_DATA findData; if (getFindData(fname.nativeFilePath(), findData)) data.fillFromFindData(findData, true); } } data.knownFlagsMask |= what; return data.hasFlags(what); } static inline bool mkDir(const QString &path) { #if defined(Q_OS_WINCE) // Unfortunately CreateDirectory returns true for paths longer than // 256, but does not create a directory. It starts to fail, when // path length > MAX_PATH, which is 260 usually on CE. // This only happens on a Windows Mobile device. Windows CE seems // not to be affected by this. static int platformId = 0; if (platformId == 0) { wchar_t platformString[64]; if (SystemParametersInfo(SPI_GETPLATFORMTYPE, sizeof(platformString)/sizeof(*platformString),platformString,0)) { if (0 == wcscmp(platformString, L"PocketPC") || 0 == wcscmp(platformString, L"Smartphone")) platformId = 1; else platformId = 2; } } if (platformId == 1 && QFSFileEnginePrivate::longFileName(path).size() > 256) return false; #endif return ::CreateDirectory((wchar_t*)QFSFileEnginePrivate::longFileName(path).utf16(), 0); } static inline bool rmDir(const QString &path) { return ::RemoveDirectory((wchar_t*)QFSFileEnginePrivate::longFileName(path).utf16()); } static bool isDirPath(const QString &dirPath, bool *existed) { QString path = dirPath; if (path.length() == 2 && path.at(1) == QLatin1Char(':')) path += QLatin1Char('\\'); DWORD fileAttrib = ::GetFileAttributes((wchar_t*)QFSFileEnginePrivate::longFileName(path).utf16()); if (fileAttrib == INVALID_FILE_ATTRIBUTES) { int errorCode = GetLastError(); if (errorCode == ERROR_ACCESS_DENIED || errorCode == ERROR_SHARING_VIOLATION) { WIN32_FIND_DATA findData; if (getFindData(QFSFileEnginePrivate::longFileName(path), findData)) fileAttrib = findData.dwFileAttributes; } } if (existed) *existed = fileAttrib != INVALID_FILE_ATTRIBUTES; if (fileAttrib == INVALID_FILE_ATTRIBUTES) return false; return fileAttrib & FILE_ATTRIBUTE_DIRECTORY; } //static bool QFileSystemEngine::createDirectory(const QFileSystemEntry &entry, bool createParents) { QString dirName = entry.filePath(); if (createParents) { dirName = QDir::toNativeSeparators(QDir::cleanPath(dirName)); // We spefically search for / so \ would break it.. int oldslash = -1; if (dirName.startsWith(QLatin1String("\\\\"))) { // Don't try to create the root path of a UNC path; // CreateDirectory() will just return ERROR_INVALID_NAME. for (int i = 0; i < dirName.size(); ++i) { if (dirName.at(i) != QDir::separator()) { oldslash = i; break; } } if (oldslash != -1) oldslash = dirName.indexOf(QDir::separator(), oldslash); } for (int slash=0; slash != -1; oldslash = slash) { slash = dirName.indexOf(QDir::separator(), oldslash+1); if (slash == -1) { if (oldslash == dirName.length()) break; slash = dirName.length(); } if (slash) { QString chunk = dirName.left(slash); bool existed = false; if (!isDirPath(chunk, &existed)) { if (!existed) { if (!mkDir(chunk)) return false; } else { return false; } } } } return true; } return mkDir(entry.filePath()); } //static bool QFileSystemEngine::removeDirectory(const QFileSystemEntry &entry, bool removeEmptyParents) { QString dirName = entry.filePath(); if (removeEmptyParents) { dirName = QDir::toNativeSeparators(QDir::cleanPath(dirName)); for (int oldslash = 0, slash=dirName.length(); slash > 0; oldslash = slash) { QString chunk = dirName.left(slash); if (chunk.length() == 2 && chunk.at(0).isLetter() && chunk.at(1) == QLatin1Char(':')) break; if (!isDirPath(chunk, 0)) return false; if (!rmDir(chunk)) return oldslash != 0; slash = dirName.lastIndexOf(QDir::separator(), oldslash-1); } return true; } return rmDir(entry.filePath()); } //static QString QFileSystemEngine::rootPath() { #if defined(Q_OS_WINCE) QString ret = QLatin1String("/"); #elif defined(Q_FS_FAT) QString ret = QString::fromLatin1(qgetenv("SystemDrive").constData()); if (ret.isEmpty()) ret = QLatin1String("c:"); ret.append(QLatin1Char('/')); #elif defined(Q_OS_OS2EMX) char dir[4]; _abspath(dir, QLatin1String("/"), _MAX_PATH); QString ret(dir); #endif return ret; } //static QString QFileSystemEngine::homePath() { QString ret; #if !defined(QT_NO_LIBRARY) resolveLibs(); if (ptrGetUserProfileDirectoryW) { HANDLE hnd = ::GetCurrentProcess(); HANDLE token = 0; BOOL ok = ::OpenProcessToken(hnd, TOKEN_QUERY, &token); if (ok) { DWORD dwBufferSize = 0; // First call, to determine size of the strings (with '\0'). ok = ptrGetUserProfileDirectoryW(token, NULL, &dwBufferSize); if (!ok && dwBufferSize != 0) { // We got the required buffer size wchar_t *userDirectory = new wchar_t[dwBufferSize]; // Second call, now we can fill the allocated buffer. ok = ptrGetUserProfileDirectoryW(token, userDirectory, &dwBufferSize); if (ok) ret = QString::fromWCharArray(userDirectory); delete [] userDirectory; } ::CloseHandle(token); } } #endif if (ret.isEmpty() || !QFile::exists(ret)) { ret = QString::fromLocal8Bit(qgetenv("USERPROFILE").constData()); if (ret.isEmpty() || !QFile::exists(ret)) { ret = QString::fromLocal8Bit(qgetenv("HOMEDRIVE").constData()) + QString::fromLocal8Bit(qgetenv("HOMEPATH").constData()); if (ret.isEmpty() || !QFile::exists(ret)) { ret = QString::fromLocal8Bit(qgetenv("HOME").constData()); if (ret.isEmpty() || !QFile::exists(ret)) { #if defined(Q_OS_WINCE) ret = QLatin1String("\\My Documents"); if (!QFile::exists(ret)) #endif ret = rootPath(); } } } } return QDir::fromNativeSeparators(ret); } QString QFileSystemEngine::tempPath() { QString ret; wchar_t tempPath[MAX_PATH]; DWORD len = GetTempPath(MAX_PATH, tempPath); if (len) ret = QString::fromWCharArray(tempPath, len); if (!ret.isEmpty()) { while (ret.endsWith(QLatin1Char('\\'))) ret.chop(1); ret = QDir::fromNativeSeparators(ret); } if (ret.isEmpty()) { #if !defined(Q_OS_WINCE) ret = QLatin1String("C:/tmp"); #else ret = QLatin1String("/Temp"); #endif } else if (ret.length() >= 2 && ret[1] == QLatin1Char(':')) ret[0] = ret.at(0).toUpper(); // Force uppercase drive letters. return ret; } bool QFileSystemEngine::setCurrentPath(const QFileSystemEntry &entry) { QFileSystemMetaData meta; fillMetaData(entry, meta, QFileSystemMetaData::ExistsAttribute | QFileSystemMetaData::DirectoryType); if(!(meta.exists() && meta.isDirectory())) return false; #if !defined(Q_OS_WINCE) //TODO: this should really be using nativeFilePath(), but that returns a path in long format \\?\c:\foo //which causes many problems later on when it's returned through currentPath() return ::SetCurrentDirectory(reinterpret_cast(QDir::toNativeSeparators(entry.filePath()).utf16())) != 0; #else qfsPrivateCurrentDir = entry.filePath(); return true; #endif } QFileSystemEntry QFileSystemEngine::currentPath() { QString ret; #if !defined(Q_OS_WINCE) DWORD size = 0; wchar_t currentName[PATH_MAX]; size = ::GetCurrentDirectory(PATH_MAX, currentName); if (size != 0) { if (size > PATH_MAX) { wchar_t *newCurrentName = new wchar_t[size]; if (::GetCurrentDirectory(PATH_MAX, newCurrentName) != 0) ret = QString::fromWCharArray(newCurrentName, size); delete [] newCurrentName; } else { ret = QString::fromWCharArray(currentName, size); } } if (ret.length() >= 2 && ret[1] == QLatin1Char(':')) ret[0] = ret.at(0).toUpper(); // Force uppercase drive letters. #else //TODO - a race condition exists when using currentPath / setCurrentPath from multiple threads if (qfsPrivateCurrentDir.isEmpty()) qfsPrivateCurrentDir = QCoreApplication::applicationDirPath(); ret = qfsPrivateCurrentDir; #endif return QFileSystemEntry(ret, QFileSystemEntry::FromNativePath()); } //static bool QFileSystemEngine::createLink(const QFileSystemEntry &source, const QFileSystemEntry &target, QSystemError &error) { Q_ASSERT(false); Q_UNUSED(source) Q_UNUSED(target) Q_UNUSED(error) return false; // TODO implement; - code needs to be moved from qfsfileengine_win.cpp } //static bool QFileSystemEngine::copyFile(const QFileSystemEntry &source, const QFileSystemEntry &target, QSystemError &error) { bool ret = ::CopyFile((wchar_t*)source.nativeFilePath().utf16(), (wchar_t*)target.nativeFilePath().utf16(), true) != 0; if(!ret) error = QSystemError(::GetLastError(), QSystemError::NativeError); return ret; } //static bool QFileSystemEngine::renameFile(const QFileSystemEntry &source, const QFileSystemEntry &target, QSystemError &error) { bool ret = ::MoveFile((wchar_t*)source.nativeFilePath().utf16(), (wchar_t*)target.nativeFilePath().utf16()) != 0; if(!ret) error = QSystemError(::GetLastError(), QSystemError::NativeError); return ret; } //static bool QFileSystemEngine::removeFile(const QFileSystemEntry &entry, QSystemError &error) { bool ret = ::DeleteFile((wchar_t*)entry.nativeFilePath().utf16()) != 0; if(!ret) error = QSystemError(::GetLastError(), QSystemError::NativeError); return ret; } //static bool QFileSystemEngine::setPermissions(const QFileSystemEntry &entry, QFile::Permissions permissions, QSystemError &error, QFileSystemMetaData *data) { Q_UNUSED(data); int mode = 0; if (permissions & QFile::ReadOwner || permissions & QFile::ReadUser || permissions & QFile::ReadGroup || permissions & QFile::ReadOther) mode |= _S_IREAD; if (permissions & QFile::WriteOwner || permissions & QFile::WriteUser || permissions & QFile::WriteGroup || permissions & QFile::WriteOther) mode |= _S_IWRITE; if (mode == 0) // not supported return false; bool ret = (::_wchmod((wchar_t*)entry.nativeFilePath().utf16(), mode) == 0); if(!ret) error = QSystemError(errno, QSystemError::StandardLibraryError); return ret; } static inline QDateTime fileTimeToQDateTime(const FILETIME *time) { QDateTime ret; #if defined(Q_OS_WINCE) SYSTEMTIME systime; FILETIME ftime; systime.wYear = 1970; systime.wMonth = 1; systime.wDay = 1; systime.wHour = 0; systime.wMinute = 0; systime.wSecond = 0; systime.wMilliseconds = 0; systime.wDayOfWeek = 4; SystemTimeToFileTime(&systime, &ftime); unsigned __int64 acttime = (unsigned __int64)time->dwHighDateTime << 32 | time->dwLowDateTime; FileTimeToSystemTime(time, &systime); unsigned __int64 time1970 = (unsigned __int64)ftime.dwHighDateTime << 32 | ftime.dwLowDateTime; unsigned __int64 difftime = acttime - time1970; difftime /= 10000000; ret.setTime_t((unsigned int)difftime); #else SYSTEMTIME sTime, lTime; FileTimeToSystemTime(time, &sTime); SystemTimeToTzSpecificLocalTime(0, &sTime, &lTime); ret.setDate(QDate(lTime.wYear, lTime.wMonth, lTime.wDay)); ret.setTime(QTime(lTime.wHour, lTime.wMinute, lTime.wSecond, lTime.wMilliseconds)); #endif return ret; } QDateTime QFileSystemMetaData::creationTime() const { return fileTimeToQDateTime(&creationTime_); } QDateTime QFileSystemMetaData::modificationTime() const { return fileTimeToQDateTime(&lastWriteTime_); } QDateTime QFileSystemMetaData::accessTime() const { return fileTimeToQDateTime(&lastAccessTime_); } QT_END_NAMESPACE