diff options
Diffstat (limited to 'xpcom/io/nsLocalFileWin.cpp')
| -rw-r--r-- | xpcom/io/nsLocalFileWin.cpp | 3787 |
1 files changed, 3787 insertions, 0 deletions
diff --git a/xpcom/io/nsLocalFileWin.cpp b/xpcom/io/nsLocalFileWin.cpp new file mode 100644 index 000000000..3a7e570f5 --- /dev/null +++ b/xpcom/io/nsLocalFileWin.cpp @@ -0,0 +1,3787 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "mozilla/ArrayUtils.h" +#include "mozilla/DebugOnly.h" +#include "mozilla/UniquePtrExtensions.h" +#include "mozilla/WindowsVersion.h" + +#include "nsCOMPtr.h" +#include "nsAutoPtr.h" +#include "nsMemory.h" +#include "GeckoProfiler.h" + +#include "nsLocalFile.h" +#include "nsIDirectoryEnumerator.h" +#include "nsNativeCharsetUtils.h" + +#include "nsISimpleEnumerator.h" +#include "nsIComponentManager.h" +#include "prio.h" +#include "private/pprio.h" // To get PR_ImportFile +#include "prprf.h" +#include "prmem.h" +#include "nsHashKeys.h" + +#include "nsXPIDLString.h" +#include "nsReadableUtils.h" + +#include <direct.h> +#include <windows.h> +#include <shlwapi.h> +#include <aclapi.h> + +#include "shellapi.h" +#include "shlguid.h" + +#include <io.h> +#include <stdio.h> +#include <stdlib.h> +#include <mbstring.h> + +#include "nsXPIDLString.h" +#include "prproces.h" +#include "prlink.h" + +#include "mozilla/Mutex.h" +#include "SpecialSystemDirectory.h" + +#include "nsTraceRefcnt.h" +#include "nsXPCOMCIDInternal.h" +#include "nsThreadUtils.h" +#include "nsXULAppAPI.h" + +#include "nsIWindowMediator.h" +#include "mozIDOMWindow.h" +#include "nsPIDOMWindow.h" +#include "nsIWidget.h" +#include "mozilla/WidgetUtils.h" + +using namespace mozilla; + +#define CHECK_mWorkingPath() \ + PR_BEGIN_MACRO \ + if (mWorkingPath.IsEmpty()) \ + return NS_ERROR_NOT_INITIALIZED; \ + PR_END_MACRO + +// CopyFileEx only supports unbuffered I/O in Windows Vista and above +#ifndef COPY_FILE_NO_BUFFERING +#define COPY_FILE_NO_BUFFERING 0x00001000 +#endif + +#ifndef FILE_ATTRIBUTE_NOT_CONTENT_INDEXED +#define FILE_ATTRIBUTE_NOT_CONTENT_INDEXED 0x00002000 +#endif + +#ifndef DRIVE_REMOTE +#define DRIVE_REMOTE 4 +#endif + +static HWND +GetMostRecentNavigatorHWND() +{ + nsresult rv; + nsCOMPtr<nsIWindowMediator> winMediator( + do_GetService(NS_WINDOWMEDIATOR_CONTRACTID, &rv)); + if (NS_FAILED(rv)) { + return nullptr; + } + + nsCOMPtr<mozIDOMWindowProxy> navWin; + rv = winMediator->GetMostRecentWindow(u"navigator:browser", + getter_AddRefs(navWin)); + if (NS_FAILED(rv) || !navWin) { + return nullptr; + } + + nsPIDOMWindowOuter* win = nsPIDOMWindowOuter::From(navWin); + nsCOMPtr<nsIWidget> widget = widget::WidgetUtils::DOMWindowToWidget(win); + if (!widget) { + return nullptr; + } + + return reinterpret_cast<HWND>(widget->GetNativeData(NS_NATIVE_WINDOW)); +} + + +/** + * A runnable to dispatch back to the main thread when + * AsyncRevealOperation completes. +*/ +class AsyncLocalFileWinDone : public Runnable +{ +public: + AsyncLocalFileWinDone() : + mWorkerThread(do_GetCurrentThread()) + { + // Objects of this type must only be created on worker threads + MOZ_ASSERT(!NS_IsMainThread()); + } + + NS_IMETHOD Run() override + { + // This event shuts down the worker thread and so must be main thread. + MOZ_ASSERT(NS_IsMainThread()); + + // If we don't destroy the thread when we're done with it, it will hang + // around forever... and that is bad! + mWorkerThread->Shutdown(); + return NS_OK; + } + +private: + nsCOMPtr<nsIThread> mWorkerThread; +}; + +/** + * A runnable to dispatch from the main thread when an async operation should + * be performed. +*/ +class AsyncRevealOperation : public Runnable +{ +public: + explicit AsyncRevealOperation(const nsAString& aResolvedPath) + : mResolvedPath(aResolvedPath) + { + } + + NS_IMETHOD Run() override + { + MOZ_ASSERT(!NS_IsMainThread(), + "AsyncRevealOperation should not be run on the main thread!"); + + bool doCoUninitialize = SUCCEEDED( + CoInitializeEx(nullptr, COINIT_APARTMENTTHREADED | COINIT_DISABLE_OLE1DDE)); + Reveal(); + if (doCoUninitialize) { + CoUninitialize(); + } + + // Send the result back to the main thread so that this thread can be + // cleanly shut down + nsCOMPtr<nsIRunnable> resultrunnable = new AsyncLocalFileWinDone(); + NS_DispatchToMainThread(resultrunnable); + return NS_OK; + } + +private: + // Reveals the path in explorer. + nsresult Reveal() + { + DWORD attributes = GetFileAttributesW(mResolvedPath.get()); + if (INVALID_FILE_ATTRIBUTES == attributes) { + return NS_ERROR_FILE_INVALID_PATH; + } + + HRESULT hr; + if (attributes & FILE_ATTRIBUTE_DIRECTORY) { + // We have a directory so we should open the directory itself. + LPITEMIDLIST dir = ILCreateFromPathW(mResolvedPath.get()); + if (!dir) { + return NS_ERROR_FAILURE; + } + + LPCITEMIDLIST selection[] = { dir }; + UINT count = ArrayLength(selection); + + //Perform the open of the directory. + hr = SHOpenFolderAndSelectItems(dir, count, selection, 0); + CoTaskMemFree(dir); + } else { + int32_t len = mResolvedPath.Length(); + // We don't currently handle UNC long paths of the form \\?\ anywhere so + // this should be fine. + if (len > MAX_PATH) { + return NS_ERROR_FILE_INVALID_PATH; + } + WCHAR parentDirectoryPath[MAX_PATH + 1] = { 0 }; + wcsncpy(parentDirectoryPath, mResolvedPath.get(), MAX_PATH); + PathRemoveFileSpecW(parentDirectoryPath); + + // We have a file so we should open the parent directory. + LPITEMIDLIST dir = ILCreateFromPathW(parentDirectoryPath); + if (!dir) { + return NS_ERROR_FAILURE; + } + + // Set the item in the directory to select to the file we want to reveal. + LPITEMIDLIST item = ILCreateFromPathW(mResolvedPath.get()); + if (!item) { + CoTaskMemFree(dir); + return NS_ERROR_FAILURE; + } + + LPCITEMIDLIST selection[] = { item }; + UINT count = ArrayLength(selection); + + //Perform the selection of the file. + hr = SHOpenFolderAndSelectItems(dir, count, selection, 0); + + CoTaskMemFree(dir); + CoTaskMemFree(item); + } + + return SUCCEEDED(hr) ? NS_OK : NS_ERROR_FAILURE; + } + + // Stores the path to perform the operation on + nsString mResolvedPath; +}; + +class nsDriveEnumerator : public nsISimpleEnumerator +{ +public: + nsDriveEnumerator(); + NS_DECL_ISUPPORTS + NS_DECL_NSISIMPLEENUMERATOR + nsresult Init(); +private: + virtual ~nsDriveEnumerator(); + + /* mDrives stores the null-separated drive names. + * Init sets them. + * HasMoreElements checks mStartOfCurrentDrive. + * GetNext advances mStartOfCurrentDrive. + */ + nsString mDrives; + nsAString::const_iterator mStartOfCurrentDrive; + nsAString::const_iterator mEndOfDrivesString; +}; + +//---------------------------------------------------------------------------- +// short cut resolver +//---------------------------------------------------------------------------- +class ShortcutResolver +{ +public: + ShortcutResolver(); + // nonvirtual since we're not subclassed + ~ShortcutResolver(); + + nsresult Init(); + nsresult Resolve(const WCHAR* aIn, WCHAR* aOut); + nsresult SetShortcut(bool aUpdateExisting, + const WCHAR* aShortcutPath, + const WCHAR* aTargetPath, + const WCHAR* aWorkingDir, + const WCHAR* aArgs, + const WCHAR* aDescription, + const WCHAR* aIconFile, + int32_t aIconIndex); + +private: + Mutex mLock; + RefPtr<IPersistFile> mPersistFile; + RefPtr<IShellLinkW> mShellLink; +}; + +ShortcutResolver::ShortcutResolver() : + mLock("ShortcutResolver.mLock") +{ + CoInitialize(nullptr); +} + +ShortcutResolver::~ShortcutResolver() +{ + CoUninitialize(); +} + +nsresult +ShortcutResolver::Init() +{ + // Get a pointer to the IPersistFile interface. + if (FAILED(CoCreateInstance(CLSID_ShellLink, + nullptr, + CLSCTX_INPROC_SERVER, + IID_IShellLinkW, + getter_AddRefs(mShellLink))) || + FAILED(mShellLink->QueryInterface(IID_IPersistFile, + getter_AddRefs(mPersistFile)))) { + mShellLink = nullptr; + return NS_ERROR_FAILURE; + } + return NS_OK; +} + +// |out| must be an allocated buffer of size MAX_PATH +nsresult +ShortcutResolver::Resolve(const WCHAR* aIn, WCHAR* aOut) +{ + if (!mShellLink) { + return NS_ERROR_FAILURE; + } + + MutexAutoLock lock(mLock); + + if (FAILED(mPersistFile->Load(aIn, STGM_READ)) || + FAILED(mShellLink->Resolve(nullptr, SLR_NO_UI)) || + FAILED(mShellLink->GetPath(aOut, MAX_PATH, nullptr, SLGP_UNCPRIORITY))) { + return NS_ERROR_FAILURE; + } + return NS_OK; +} + +nsresult +ShortcutResolver::SetShortcut(bool aUpdateExisting, + const WCHAR* aShortcutPath, + const WCHAR* aTargetPath, + const WCHAR* aWorkingDir, + const WCHAR* aArgs, + const WCHAR* aDescription, + const WCHAR* aIconPath, + int32_t aIconIndex) +{ + if (!mShellLink) { + return NS_ERROR_FAILURE; + } + + if (!aShortcutPath) { + return NS_ERROR_FAILURE; + } + + MutexAutoLock lock(mLock); + + if (aUpdateExisting) { + if (FAILED(mPersistFile->Load(aShortcutPath, STGM_READWRITE))) { + return NS_ERROR_FAILURE; + } + } else { + if (!aTargetPath) { + return NS_ERROR_FILE_TARGET_DOES_NOT_EXIST; + } + + // Since we reuse our IPersistFile, we have to clear out any values that + // may be left over from previous calls to SetShortcut. + if (FAILED(mShellLink->SetWorkingDirectory(L"")) || + FAILED(mShellLink->SetArguments(L"")) || + FAILED(mShellLink->SetDescription(L"")) || + FAILED(mShellLink->SetIconLocation(L"", 0))) { + return NS_ERROR_FAILURE; + } + } + + if (aTargetPath && FAILED(mShellLink->SetPath(aTargetPath))) { + return NS_ERROR_FAILURE; + } + + if (aWorkingDir && FAILED(mShellLink->SetWorkingDirectory(aWorkingDir))) { + return NS_ERROR_FAILURE; + } + + if (aArgs && FAILED(mShellLink->SetArguments(aArgs))) { + return NS_ERROR_FAILURE; + } + + if (aDescription && FAILED(mShellLink->SetDescription(aDescription))) { + return NS_ERROR_FAILURE; + } + + if (aIconPath && FAILED(mShellLink->SetIconLocation(aIconPath, aIconIndex))) { + return NS_ERROR_FAILURE; + } + + if (FAILED(mPersistFile->Save(aShortcutPath, + TRUE))) { + // Second argument indicates whether the file path specified in the + // first argument should become the "current working file" for this + // IPersistFile + return NS_ERROR_FAILURE; + } + + return NS_OK; +} + +static ShortcutResolver* gResolver = nullptr; + +static nsresult +NS_CreateShortcutResolver() +{ + gResolver = new ShortcutResolver(); + return gResolver->Init(); +} + +static void +NS_DestroyShortcutResolver() +{ + delete gResolver; + gResolver = nullptr; +} + + +//----------------------------------------------------------------------------- +// static helper functions +//----------------------------------------------------------------------------- + +// certainly not all the error that can be +// encountered, but many of them common ones +static nsresult +ConvertWinError(DWORD aWinErr) +{ + nsresult rv; + + switch (aWinErr) { + case ERROR_FILE_NOT_FOUND: + case ERROR_PATH_NOT_FOUND: + case ERROR_INVALID_DRIVE: + case ERROR_NOT_READY: + rv = NS_ERROR_FILE_NOT_FOUND; + break; + case ERROR_ACCESS_DENIED: + case ERROR_NOT_SAME_DEVICE: + rv = NS_ERROR_FILE_ACCESS_DENIED; + break; + case ERROR_SHARING_VIOLATION: // CreateFile without sharing flags + case ERROR_LOCK_VIOLATION: // LockFile, LockFileEx + rv = NS_ERROR_FILE_IS_LOCKED; + break; + case ERROR_NOT_ENOUGH_MEMORY: + case ERROR_INVALID_BLOCK: + case ERROR_INVALID_HANDLE: + case ERROR_ARENA_TRASHED: + rv = NS_ERROR_OUT_OF_MEMORY; + break; + case ERROR_CURRENT_DIRECTORY: + rv = NS_ERROR_FILE_DIR_NOT_EMPTY; + break; + case ERROR_WRITE_PROTECT: + rv = NS_ERROR_FILE_READ_ONLY; + break; + case ERROR_HANDLE_DISK_FULL: + rv = NS_ERROR_FILE_TOO_BIG; + break; + case ERROR_FILE_EXISTS: + case ERROR_ALREADY_EXISTS: + case ERROR_CANNOT_MAKE: + rv = NS_ERROR_FILE_ALREADY_EXISTS; + break; + case ERROR_FILENAME_EXCED_RANGE: + rv = NS_ERROR_FILE_NAME_TOO_LONG; + break; + case ERROR_DIRECTORY: + rv = NS_ERROR_FILE_NOT_DIRECTORY; + break; + case 0: + rv = NS_OK; + break; + default: + rv = NS_ERROR_FAILURE; + break; + } + return rv; +} + +// as suggested in the MSDN documentation on SetFilePointer +static __int64 +MyFileSeek64(HANDLE aHandle, __int64 aDistance, DWORD aMoveMethod) +{ + LARGE_INTEGER li; + + li.QuadPart = aDistance; + li.LowPart = SetFilePointer(aHandle, li.LowPart, &li.HighPart, aMoveMethod); + if (li.LowPart == INVALID_SET_FILE_POINTER && GetLastError() != NO_ERROR) { + li.QuadPart = -1; + } + + return li.QuadPart; +} + +static bool +IsShortcutPath(const nsAString& aPath) +{ + // Under Windows, the shortcuts are just files with a ".lnk" extension. + // Note also that we don't resolve links in the middle of paths. + // i.e. "c:\foo.lnk\bar.txt" is invalid. + MOZ_ASSERT(!aPath.IsEmpty(), "don't pass an empty string"); + int32_t len = aPath.Length(); + return len >= 4 && (StringTail(aPath, 4).LowerCaseEqualsASCII(".lnk")); +} + +//----------------------------------------------------------------------------- +// We need the following three definitions to make |OpenFile| convert a file +// handle to an NSPR file descriptor correctly when |O_APPEND| flag is +// specified. It is defined in a private header of NSPR (primpl.h) we can't +// include. As a temporary workaround until we decide how to extend +// |PR_ImportFile|, we define it here. Currently, |_PR_HAVE_PEEK_BUFFER| +// and |PR_STRICT_ADDR_LEN| are not defined for the 'w95'-dependent portion +// of NSPR so that fields of |PRFilePrivate| #ifdef'd by them are not copied. +// Similarly, |_MDFileDesc| is taken from nsprpub/pr/include/md/_win95.h. +// In an unlikely case we switch to 'NT'-dependent NSPR AND this temporary +// workaround last beyond the switch, |PRFilePrivate| and |_MDFileDesc| +// need to be changed to match the definitions for WinNT. +//----------------------------------------------------------------------------- +typedef enum +{ + _PR_TRI_TRUE = 1, + _PR_TRI_FALSE = 0, + _PR_TRI_UNKNOWN = -1 +} _PRTriStateBool; + +struct _MDFileDesc +{ + PROsfd osfd; +}; + +struct PRFilePrivate +{ + int32_t state; + bool nonblocking; + _PRTriStateBool inheritable; + PRFileDesc* next; + int lockCount; /* 0: not locked + * -1: a native lockfile call is in progress + * > 0: # times the file is locked */ + bool appendMode; + _MDFileDesc md; +}; + +//----------------------------------------------------------------------------- +// Six static methods defined below (OpenFile, FileTimeToPRTime, GetFileInfo, +// OpenDir, CloseDir, ReadDir) should go away once the corresponding +// UTF-16 APIs are implemented on all the supported platforms (or at least +// Windows 9x/ME) in NSPR. Currently, they're only implemented on +// Windows NT4 or later. (bug 330665) +//----------------------------------------------------------------------------- + +// copied from nsprpub/pr/src/{io/prfile.c | md/windows/w95io.c} : +// PR_Open and _PR_MD_OPEN +nsresult +OpenFile(const nsAFlatString& aName, + int aOsflags, + int aMode, + bool aShareDelete, + PRFileDesc** aFd) +{ + int32_t access = 0; + + int32_t shareMode = FILE_SHARE_READ | FILE_SHARE_WRITE; + int32_t disposition = 0; + int32_t attributes = 0; + + if (aShareDelete) { + shareMode |= FILE_SHARE_DELETE; + } + + if (aOsflags & PR_SYNC) { + attributes = FILE_FLAG_WRITE_THROUGH; + } + if (aOsflags & PR_RDONLY || aOsflags & PR_RDWR) { + access |= GENERIC_READ; + } + if (aOsflags & PR_WRONLY || aOsflags & PR_RDWR) { + access |= GENERIC_WRITE; + } + + if (aOsflags & PR_CREATE_FILE && aOsflags & PR_EXCL) { + disposition = CREATE_NEW; + } else if (aOsflags & PR_CREATE_FILE) { + if (aOsflags & PR_TRUNCATE) { + disposition = CREATE_ALWAYS; + } else { + disposition = OPEN_ALWAYS; + } + } else { + if (aOsflags & PR_TRUNCATE) { + disposition = TRUNCATE_EXISTING; + } else { + disposition = OPEN_EXISTING; + } + } + + if (aOsflags & nsIFile::DELETE_ON_CLOSE) { + attributes |= FILE_FLAG_DELETE_ON_CLOSE; + } + + if (aOsflags & nsIFile::OS_READAHEAD) { + attributes |= FILE_FLAG_SEQUENTIAL_SCAN; + } + + // If no write permissions are requested, and if we are possibly creating + // the file, then set the new file as read only. + // The flag has no effect if we happen to open the file. + if (!(aMode & (PR_IWUSR | PR_IWGRP | PR_IWOTH)) && + disposition != OPEN_EXISTING) { + attributes |= FILE_ATTRIBUTE_READONLY; + } + + HANDLE file = ::CreateFileW(aName.get(), access, shareMode, + nullptr, disposition, attributes, nullptr); + + if (file == INVALID_HANDLE_VALUE) { + *aFd = nullptr; + return ConvertWinError(GetLastError()); + } + + *aFd = PR_ImportFile((PROsfd) file); + if (*aFd) { + // On Windows, _PR_HAVE_O_APPEND is not defined so that we have to + // add it manually. (see |PR_Open| in nsprpub/pr/src/io/prfile.c) + (*aFd)->secret->appendMode = (PR_APPEND & aOsflags) ? true : false; + return NS_OK; + } + + nsresult rv = NS_ErrorAccordingToNSPR(); + + CloseHandle(file); + + return rv; +} + +// copied from nsprpub/pr/src/{io/prfile.c | md/windows/w95io.c} : +// PR_FileTimeToPRTime and _PR_FileTimeToPRTime +static void +FileTimeToPRTime(const FILETIME* aFiletime, PRTime* aPrtm) +{ +#ifdef __GNUC__ + const PRTime _pr_filetime_offset = 116444736000000000LL; +#else + const PRTime _pr_filetime_offset = 116444736000000000i64; +#endif + + MOZ_ASSERT(sizeof(FILETIME) == sizeof(PRTime)); + ::CopyMemory(aPrtm, aFiletime, sizeof(PRTime)); +#ifdef __GNUC__ + *aPrtm = (*aPrtm - _pr_filetime_offset) / 10LL; +#else + *aPrtm = (*aPrtm - _pr_filetime_offset) / 10i64; +#endif +} + +// copied from nsprpub/pr/src/{io/prfile.c | md/windows/w95io.c} with some +// changes : PR_GetFileInfo64, _PR_MD_GETFILEINFO64 +static nsresult +GetFileInfo(const nsAFlatString& aName, PRFileInfo64* aInfo) +{ + WIN32_FILE_ATTRIBUTE_DATA fileData; + + if (aName.IsEmpty() || aName.FindCharInSet(u"?*") != kNotFound) { + return NS_ERROR_INVALID_ARG; + } + + if (!::GetFileAttributesExW(aName.get(), GetFileExInfoStandard, &fileData)) { + return ConvertWinError(GetLastError()); + } + + if (fileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) { + aInfo->type = PR_FILE_DIRECTORY; + } else { + aInfo->type = PR_FILE_FILE; + } + + aInfo->size = fileData.nFileSizeHigh; + aInfo->size = (aInfo->size << 32) + fileData.nFileSizeLow; + + FileTimeToPRTime(&fileData.ftLastWriteTime, &aInfo->modifyTime); + + if (0 == fileData.ftCreationTime.dwLowDateTime && + 0 == fileData.ftCreationTime.dwHighDateTime) { + aInfo->creationTime = aInfo->modifyTime; + } else { + FileTimeToPRTime(&fileData.ftCreationTime, &aInfo->creationTime); + } + + return NS_OK; +} + +struct nsDir +{ + HANDLE handle; + WIN32_FIND_DATAW data; + bool firstEntry; +}; + +static nsresult +OpenDir(const nsAFlatString& aName, nsDir** aDir) +{ + if (NS_WARN_IF(!aDir)) { + return NS_ERROR_INVALID_ARG; + } + + *aDir = nullptr; + if (aName.Length() + 3 >= MAX_PATH) { + return NS_ERROR_FILE_NAME_TOO_LONG; + } + + nsDir* d = new nsDir(); + nsAutoString filename(aName); + + // If |aName| ends in a slash or backslash, do not append another backslash. + if (filename.Last() == L'/' || filename.Last() == L'\\') { + filename.Append('*'); + } else { + filename.AppendLiteral("\\*"); + } + + filename.ReplaceChar(L'/', L'\\'); + + // FindFirstFileW Will have a last error of ERROR_DIRECTORY if + // <file_path>\* is passed in. If <unknown_path>\* is passed in then + // ERROR_PATH_NOT_FOUND will be the last error. + d->handle = ::FindFirstFileW(filename.get(), &(d->data)); + + if (d->handle == INVALID_HANDLE_VALUE) { + delete d; + return ConvertWinError(GetLastError()); + } + d->firstEntry = true; + + *aDir = d; + return NS_OK; +} + +static nsresult +ReadDir(nsDir* aDir, PRDirFlags aFlags, nsString& aName) +{ + aName.Truncate(); + if (NS_WARN_IF(!aDir)) { + return NS_ERROR_INVALID_ARG; + } + + while (1) { + BOOL rv; + if (aDir->firstEntry) { + aDir->firstEntry = false; + rv = 1; + } else { + rv = ::FindNextFileW(aDir->handle, &(aDir->data)); + } + + if (rv == 0) { + break; + } + + const wchar_t* fileName; + fileName = (aDir)->data.cFileName; + + if ((aFlags & PR_SKIP_DOT) && + (fileName[0] == L'.') && (fileName[1] == L'\0')) { + continue; + } + if ((aFlags & PR_SKIP_DOT_DOT) && + (fileName[0] == L'.') && (fileName[1] == L'.') && + (fileName[2] == L'\0')) { + continue; + } + + DWORD attrib = aDir->data.dwFileAttributes; + if ((aFlags & PR_SKIP_HIDDEN) && (attrib & FILE_ATTRIBUTE_HIDDEN)) { + continue; + } + + aName = fileName; + return NS_OK; + } + + DWORD err = GetLastError(); + return err == ERROR_NO_MORE_FILES ? NS_OK : ConvertWinError(err); +} + +static nsresult +CloseDir(nsDir*& aDir) +{ + if (NS_WARN_IF(!aDir)) { + return NS_ERROR_INVALID_ARG; + } + + BOOL isOk = FindClose(aDir->handle); + delete aDir; + aDir = nullptr; + return isOk ? NS_OK : ConvertWinError(GetLastError()); +} + +//----------------------------------------------------------------------------- +// nsDirEnumerator +//----------------------------------------------------------------------------- + +class nsDirEnumerator final + : public nsISimpleEnumerator + , public nsIDirectoryEnumerator +{ +private: + ~nsDirEnumerator() + { + Close(); + } + +public: + NS_DECL_ISUPPORTS + + nsDirEnumerator() : mDir(nullptr) + { + } + + nsresult Init(nsIFile* aParent) + { + nsAutoString filepath; + aParent->GetTarget(filepath); + + if (filepath.IsEmpty()) { + aParent->GetPath(filepath); + } + + if (filepath.IsEmpty()) { + return NS_ERROR_UNEXPECTED; + } + + // IsDirectory is not needed here because OpenDir will return + // NS_ERROR_FILE_NOT_DIRECTORY if the passed in path is a file. + nsresult rv = OpenDir(filepath, &mDir); + if (NS_FAILED(rv)) { + return rv; + } + + mParent = aParent; + return NS_OK; + } + + NS_IMETHOD HasMoreElements(bool* aResult) + { + nsresult rv; + if (!mNext && mDir) { + nsString name; + rv = ReadDir(mDir, PR_SKIP_BOTH, name); + if (NS_FAILED(rv)) { + return rv; + } + if (name.IsEmpty()) { + // end of dir entries + if (NS_FAILED(CloseDir(mDir))) { + return NS_ERROR_FAILURE; + } + + *aResult = false; + return NS_OK; + } + + nsCOMPtr<nsIFile> file; + rv = mParent->Clone(getter_AddRefs(file)); + if (NS_FAILED(rv)) { + return rv; + } + + rv = file->Append(name); + if (NS_FAILED(rv)) { + return rv; + } + + mNext = do_QueryInterface(file); + } + *aResult = mNext != nullptr; + if (!*aResult) { + Close(); + } + return NS_OK; + } + + NS_IMETHOD GetNext(nsISupports** aResult) + { + nsresult rv; + bool hasMore; + rv = HasMoreElements(&hasMore); + if (NS_FAILED(rv)) { + return rv; + } + + *aResult = mNext; // might return nullptr + NS_IF_ADDREF(*aResult); + + mNext = nullptr; + return NS_OK; + } + + NS_IMETHOD GetNextFile(nsIFile** aResult) + { + *aResult = nullptr; + bool hasMore = false; + nsresult rv = HasMoreElements(&hasMore); + if (NS_FAILED(rv) || !hasMore) { + return rv; + } + *aResult = mNext; + NS_IF_ADDREF(*aResult); + mNext = nullptr; + return NS_OK; + } + + NS_IMETHOD Close() + { + if (mDir) { + nsresult rv = CloseDir(mDir); + NS_ASSERTION(NS_SUCCEEDED(rv), "close failed"); + if (NS_FAILED(rv)) { + return NS_ERROR_FAILURE; + } + } + return NS_OK; + } + +protected: + nsDir* mDir; + nsCOMPtr<nsIFile> mParent; + nsCOMPtr<nsIFile> mNext; +}; + +NS_IMPL_ISUPPORTS(nsDirEnumerator, nsISimpleEnumerator, nsIDirectoryEnumerator) + + +//----------------------------------------------------------------------------- +// nsLocalFile <public> +//----------------------------------------------------------------------------- + +nsLocalFile::nsLocalFile() + : mDirty(true) + , mResolveDirty(true) + , mFollowSymlinks(false) +{ +} + +nsresult +nsLocalFile::nsLocalFileConstructor(nsISupports* aOuter, const nsIID& aIID, + void** aInstancePtr) +{ + if (NS_WARN_IF(!aInstancePtr)) { + return NS_ERROR_INVALID_ARG; + } + if (NS_WARN_IF(aOuter)) { + return NS_ERROR_NO_AGGREGATION; + } + + nsLocalFile* inst = new nsLocalFile(); + nsresult rv = inst->QueryInterface(aIID, aInstancePtr); + if (NS_FAILED(rv)) { + delete inst; + return rv; + } + return NS_OK; +} + + +//----------------------------------------------------------------------------- +// nsLocalFile::nsISupports +//----------------------------------------------------------------------------- + +NS_IMPL_ISUPPORTS(nsLocalFile, + nsILocalFile, + nsIFile, + nsILocalFileWin, + nsIHashable) + + +//----------------------------------------------------------------------------- +// nsLocalFile <private> +//----------------------------------------------------------------------------- + +nsLocalFile::nsLocalFile(const nsLocalFile& aOther) + : mDirty(true) + , mResolveDirty(true) + , mFollowSymlinks(aOther.mFollowSymlinks) + , mWorkingPath(aOther.mWorkingPath) +{ +} + +// Resolve the shortcut file from mWorkingPath and write the path +// it points to into mResolvedPath. +nsresult +nsLocalFile::ResolveShortcut() +{ + // we can't do anything without the resolver + if (!gResolver) { + return NS_ERROR_FAILURE; + } + + mResolvedPath.SetLength(MAX_PATH); + if (mResolvedPath.Length() != MAX_PATH) { + return NS_ERROR_OUT_OF_MEMORY; + } + + wchar_t* resolvedPath = wwc(mResolvedPath.BeginWriting()); + + // resolve this shortcut + nsresult rv = gResolver->Resolve(mWorkingPath.get(), resolvedPath); + + size_t len = NS_FAILED(rv) ? 0 : wcslen(resolvedPath); + mResolvedPath.SetLength(len); + + return rv; +} + +// Resolve any shortcuts and stat the resolved path. After a successful return +// the path is guaranteed valid and the members of mFileInfo64 can be used. +nsresult +nsLocalFile::ResolveAndStat() +{ + // if we aren't dirty then we are already done + if (!mDirty) { + return NS_OK; + } + + PROFILER_LABEL_FUNC(js::ProfileEntry::Category::OTHER); + // we can't resolve/stat anything that isn't a valid NSPR addressable path + if (mWorkingPath.IsEmpty()) { + return NS_ERROR_FILE_INVALID_PATH; + } + + // this is usually correct + mResolvedPath.Assign(mWorkingPath); + + // slutty hack designed to work around bug 134796 until it is fixed + nsAutoString nsprPath(mWorkingPath.get()); + if (mWorkingPath.Length() == 2 && mWorkingPath.CharAt(1) == L':') { + nsprPath.Append('\\'); + } + + // first we will see if the working path exists. If it doesn't then + // there is nothing more that can be done + nsresult rv = GetFileInfo(nsprPath, &mFileInfo64); + if (NS_FAILED(rv)) { + return rv; + } + + // if this isn't a shortcut file or we aren't following symlinks then we're done + if (!mFollowSymlinks || + mFileInfo64.type != PR_FILE_FILE || + !IsShortcutPath(mWorkingPath)) { + mDirty = false; + mResolveDirty = false; + return NS_OK; + } + + // we need to resolve this shortcut to what it points to, this will + // set mResolvedPath. Even if it fails we need to have the resolved + // path equal to working path for those functions that always use + // the resolved path. + rv = ResolveShortcut(); + if (NS_FAILED(rv)) { + mResolvedPath.Assign(mWorkingPath); + return rv; + } + mResolveDirty = false; + + // get the details of the resolved path + rv = GetFileInfo(mResolvedPath, &mFileInfo64); + if (NS_FAILED(rv)) { + return rv; + } + + mDirty = false; + return NS_OK; +} + +/** + * Fills the mResolvedPath member variable with the file or symlink target + * if follow symlinks is on. This is a copy of the Resolve parts from + * ResolveAndStat. ResolveAndStat is much slower though because of the stat. + * + * @return NS_OK on success. +*/ +nsresult +nsLocalFile::Resolve() +{ + // if we aren't dirty then we are already done + if (!mResolveDirty) { + return NS_OK; + } + + // we can't resolve/stat anything that isn't a valid NSPR addressable path + if (mWorkingPath.IsEmpty()) { + return NS_ERROR_FILE_INVALID_PATH; + } + + // this is usually correct + mResolvedPath.Assign(mWorkingPath); + + // if this isn't a shortcut file or we aren't following symlinks then + // we're done. + if (!mFollowSymlinks || + !IsShortcutPath(mWorkingPath)) { + mResolveDirty = false; + return NS_OK; + } + + // we need to resolve this shortcut to what it points to, this will + // set mResolvedPath. Even if it fails we need to have the resolved + // path equal to working path for those functions that always use + // the resolved path. + nsresult rv = ResolveShortcut(); + if (NS_FAILED(rv)) { + mResolvedPath.Assign(mWorkingPath); + return rv; + } + + mResolveDirty = false; + return NS_OK; +} + +//----------------------------------------------------------------------------- +// nsLocalFile::nsIFile,nsILocalFile +//----------------------------------------------------------------------------- + +NS_IMETHODIMP +nsLocalFile::Clone(nsIFile** aFile) +{ + // Just copy-construct ourselves + RefPtr<nsLocalFile> file = new nsLocalFile(*this); + file.forget(aFile); + + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::InitWithFile(nsIFile* aFile) +{ + if (NS_WARN_IF(!aFile)) { + return NS_ERROR_INVALID_ARG; + } + + nsAutoString path; + aFile->GetPath(path); + if (path.IsEmpty()) { + return NS_ERROR_INVALID_ARG; + } + return InitWithPath(path); +} + +NS_IMETHODIMP +nsLocalFile::InitWithPath(const nsAString& aFilePath) +{ + MakeDirty(); + + nsAString::const_iterator begin, end; + aFilePath.BeginReading(begin); + aFilePath.EndReading(end); + + // input string must not be empty + if (begin == end) { + return NS_ERROR_FAILURE; + } + + char16_t firstChar = *begin; + char16_t secondChar = *(++begin); + + // just do a sanity check. if it has any forward slashes, it is not a Native path + // on windows. Also, it must have a colon at after the first char. + if (FindCharInReadable(L'/', begin, end)) { + return NS_ERROR_FILE_UNRECOGNIZED_PATH; + } + + if (secondChar != L':' && (secondChar != L'\\' || firstChar != L'\\')) { + return NS_ERROR_FILE_UNRECOGNIZED_PATH; + } + + if (secondChar == L':') { + // Make sure we have a valid drive, later code assumes the drive letter + // is a single char a-z or A-Z. + if (PathGetDriveNumberW(aFilePath.Data()) == -1) { + return NS_ERROR_FILE_UNRECOGNIZED_PATH; + } + } + + mWorkingPath = aFilePath; + // kill any trailing '\' + if (mWorkingPath.Last() == L'\\') { + mWorkingPath.Truncate(mWorkingPath.Length() - 1); + } + + return NS_OK; + +} + +// Strip a handler command string of its quotes and parameters. +static void +CleanupHandlerPath(nsString& aPath) +{ + // Example command strings passed into this routine: + + // 1) C:\Program Files\Company\some.exe -foo -bar + // 2) C:\Program Files\Company\some.dll + // 3) C:\Windows\some.dll,-foo -bar + // 4) C:\Windows\some.cpl,-foo -bar + + int32_t lastCommaPos = aPath.RFindChar(','); + if (lastCommaPos != kNotFound) + aPath.Truncate(lastCommaPos); + + aPath.Append(' '); + + // case insensitive + uint32_t index = aPath.Find(".exe ", true); + if (index == kNotFound) + index = aPath.Find(".dll ", true); + if (index == kNotFound) + index = aPath.Find(".cpl ", true); + + if (index != kNotFound) + aPath.Truncate(index + 4); + aPath.Trim(" ", true, true); +} + +// Strip the windows host process bootstrap executable rundll32.exe +// from a handler's command string if it exists. +static void +StripRundll32(nsString& aCommandString) +{ + // Example rundll formats: + // C:\Windows\System32\rundll32.exe "path to dll" + // rundll32.exe "path to dll" + // C:\Windows\System32\rundll32.exe "path to dll", var var + // rundll32.exe "path to dll", var var + + NS_NAMED_LITERAL_STRING(rundllSegment, "rundll32.exe "); + NS_NAMED_LITERAL_STRING(rundllSegmentShort, "rundll32 "); + + // case insensitive + int32_t strLen = rundllSegment.Length(); + int32_t index = aCommandString.Find(rundllSegment, true); + if (index == kNotFound) { + strLen = rundllSegmentShort.Length(); + index = aCommandString.Find(rundllSegmentShort, true); + } + + if (index != kNotFound) { + uint32_t rundllSegmentLength = index + strLen; + aCommandString.Cut(0, rundllSegmentLength); + } +} + +// Returns the fully qualified path to an application handler based on +// a parameterized command string. Note this routine should not be used +// to launch the associated application as it strips parameters and +// rundll.exe from the string. Designed for retrieving display information +// on a particular handler. +/* static */ bool +nsLocalFile::CleanupCmdHandlerPath(nsAString& aCommandHandler) +{ + nsAutoString handlerCommand(aCommandHandler); + + // Straight command path: + // + // %SystemRoot%\system32\NOTEPAD.EXE var + // "C:\Program Files\iTunes\iTunes.exe" var var + // C:\Program Files\iTunes\iTunes.exe var var + // + // Example rundll handlers: + // + // rundll32.exe "%ProgramFiles%\Win...ery\PhotoViewer.dll", var var + // rundll32.exe "%ProgramFiles%\Windows Photo Gallery\PhotoViewer.dll" + // C:\Windows\System32\rundll32.exe "path to dll", var var + // %SystemRoot%\System32\rundll32.exe "%ProgramFiles%\Win...ery\Photo + // Viewer.dll", var var + + // Expand environment variables so we have full path strings. + uint32_t bufLength = ::ExpandEnvironmentStringsW(handlerCommand.get(), + L"", 0); + if (bufLength == 0) // Error + return false; + + auto destination = mozilla::MakeUniqueFallible<wchar_t[]>(bufLength); + if (!destination) + return false; + if (!::ExpandEnvironmentStringsW(handlerCommand.get(), destination.get(), + bufLength)) + return false; + + handlerCommand.Assign(destination.get()); + + // Remove quotes around paths + handlerCommand.StripChars("\""); + + // Strip windows host process bootstrap so we can get to the actual + // handler. + StripRundll32(handlerCommand); + + // Trim any command parameters so that we have a native path we can + // initialize a local file with. + CleanupHandlerPath(handlerCommand); + + aCommandHandler.Assign(handlerCommand); + return true; +} + + +NS_IMETHODIMP +nsLocalFile::InitWithCommandLine(const nsAString& aCommandLine) +{ + nsAutoString commandLine(aCommandLine); + if (!CleanupCmdHandlerPath(commandLine)) { + return NS_ERROR_FILE_UNRECOGNIZED_PATH; + } + return InitWithPath(commandLine); +} + +NS_IMETHODIMP +nsLocalFile::OpenNSPRFileDesc(int32_t aFlags, int32_t aMode, + PRFileDesc** aResult) +{ + nsresult rv = OpenNSPRFileDescMaybeShareDelete(aFlags, aMode, false, aResult); + if (NS_FAILED(rv)) { + return rv; + } + + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::OpenANSIFileDesc(const char* aMode, FILE** aResult) +{ + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv) && rv != NS_ERROR_FILE_NOT_FOUND) { + return rv; + } + + *aResult = _wfopen(mResolvedPath.get(), NS_ConvertASCIItoUTF16(aMode).get()); + if (*aResult) { + return NS_OK; + } + + return NS_ERROR_FAILURE; +} + + + +NS_IMETHODIMP +nsLocalFile::Create(uint32_t aType, uint32_t aAttributes) +{ + if (aType != NORMAL_FILE_TYPE && aType != DIRECTORY_TYPE) { + return NS_ERROR_FILE_UNKNOWN_TYPE; + } + + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv) && rv != NS_ERROR_FILE_NOT_FOUND) { + return rv; + } + + // create directories to target + // + // A given local file can be either one of these forms: + // + // - normal: X:\some\path\on\this\drive + // ^--- start here + // + // - UNC path: \\machine\volume\some\path\on\this\drive + // ^--- start here + // + // Skip the first 'X:\' for the first form, and skip the first full + // '\\machine\volume\' segment for the second form. + + wchar_t* path = wwc(mResolvedPath.BeginWriting()); + + if (path[0] == L'\\' && path[1] == L'\\') { + // dealing with a UNC path here; skip past '\\machine\' + path = wcschr(path + 2, L'\\'); + if (!path) { + return NS_ERROR_FILE_INVALID_PATH; + } + ++path; + } + + // search for first slash after the drive (or volume) name + wchar_t* slash = wcschr(path, L'\\'); + + nsresult directoryCreateError = NS_OK; + if (slash) { + // skip the first '\\' + ++slash; + slash = wcschr(slash, L'\\'); + + while (slash) { + *slash = L'\0'; + + if (!::CreateDirectoryW(mResolvedPath.get(), nullptr)) { + rv = ConvertWinError(GetLastError()); + if (NS_ERROR_FILE_NOT_FOUND == rv && + NS_ERROR_FILE_ACCESS_DENIED == directoryCreateError) { + // If a previous CreateDirectory failed due to access, return that. + return NS_ERROR_FILE_ACCESS_DENIED; + } + // perhaps the base path already exists, or perhaps we don't have + // permissions to create the directory. NOTE: access denied could + // occur on a parent directory even though it exists. + else if (rv != NS_ERROR_FILE_ALREADY_EXISTS && + rv != NS_ERROR_FILE_ACCESS_DENIED) { + return rv; + } + + directoryCreateError = rv; + } + *slash = L'\\'; + ++slash; + slash = wcschr(slash, L'\\'); + } + } + + if (aType == NORMAL_FILE_TYPE) { + PRFileDesc* file; + rv = OpenFile(mResolvedPath, + PR_RDONLY | PR_CREATE_FILE | PR_APPEND | PR_EXCL, + aAttributes, false, &file); + if (file) { + PR_Close(file); + } + + if (rv == NS_ERROR_FILE_ACCESS_DENIED) { + // need to return already-exists for directories (bug 452217) + bool isdir; + if (NS_SUCCEEDED(IsDirectory(&isdir)) && isdir) { + rv = NS_ERROR_FILE_ALREADY_EXISTS; + } + } else if (NS_ERROR_FILE_NOT_FOUND == rv && + NS_ERROR_FILE_ACCESS_DENIED == directoryCreateError) { + // If a previous CreateDirectory failed due to access, return that. + return NS_ERROR_FILE_ACCESS_DENIED; + } + return rv; + } + + if (aType == DIRECTORY_TYPE) { + if (!::CreateDirectoryW(mResolvedPath.get(), nullptr)) { + rv = ConvertWinError(GetLastError()); + if (NS_ERROR_FILE_NOT_FOUND == rv && + NS_ERROR_FILE_ACCESS_DENIED == directoryCreateError) { + // If a previous CreateDirectory failed due to access, return that. + return NS_ERROR_FILE_ACCESS_DENIED; + } + return rv; + } + return NS_OK; + } + + return NS_ERROR_FILE_UNKNOWN_TYPE; +} + + +NS_IMETHODIMP +nsLocalFile::Append(const nsAString& aNode) +{ + // append this path, multiple components are not permitted + return AppendInternal(PromiseFlatString(aNode), false); +} + +NS_IMETHODIMP +nsLocalFile::AppendRelativePath(const nsAString& aNode) +{ + // append this path, multiple components are permitted + return AppendInternal(PromiseFlatString(aNode), true); +} + + +nsresult +nsLocalFile::AppendInternal(const nsAFlatString& aNode, + bool aMultipleComponents) +{ + if (aNode.IsEmpty()) { + return NS_OK; + } + + // check the relative path for validity + if (aNode.First() == L'\\' || // can't start with an '\' + aNode.Contains(L'/') || // can't contain / + aNode.EqualsASCII("..")) { // can't be .. + return NS_ERROR_FILE_UNRECOGNIZED_PATH; + } + + if (aMultipleComponents) { + // can't contain .. as a path component. Ensure that the valid components + // "foo..foo", "..foo", and "foo.." are not falsely detected, + // but the invalid paths "..\", "foo\..", "foo\..\foo", + // "..\foo", etc are. + NS_NAMED_LITERAL_STRING(doubleDot, "\\.."); + nsAString::const_iterator start, end, offset; + aNode.BeginReading(start); + aNode.EndReading(end); + offset = end; + while (FindInReadable(doubleDot, start, offset)) { + if (offset == end || *offset == L'\\') { + return NS_ERROR_FILE_UNRECOGNIZED_PATH; + } + start = offset; + offset = end; + } + + // catches the remaining cases of prefixes + if (StringBeginsWith(aNode, NS_LITERAL_STRING("..\\"))) { + return NS_ERROR_FILE_UNRECOGNIZED_PATH; + } + } + // single components can't contain '\' + else if (aNode.Contains(L'\\')) { + return NS_ERROR_FILE_UNRECOGNIZED_PATH; + } + + MakeDirty(); + + mWorkingPath.Append('\\'); + mWorkingPath.Append(aNode); + + return NS_OK; +} + +nsresult +nsLocalFile::OpenNSPRFileDescMaybeShareDelete(int32_t aFlags, + int32_t aMode, + bool aShareDelete, + PRFileDesc** aResult) +{ + nsresult rv = Resolve(); + if (NS_FAILED(rv)) { + return rv; + } + + return OpenFile(mResolvedPath, aFlags, aMode, aShareDelete, aResult); +} + +#define TOUPPER(u) (((u) >= L'a' && (u) <= L'z') ? \ + (u) - (L'a' - L'A') : (u)) + +NS_IMETHODIMP +nsLocalFile::Normalize() +{ + // XXX See bug 187957 comment 18 for possible problems with this implementation. + + if (mWorkingPath.IsEmpty()) { + return NS_OK; + } + + nsAutoString path(mWorkingPath); + + // find the index of the root backslash for the path. Everything before + // this is considered fully normalized and cannot be ascended beyond + // using ".." For a local drive this is the first slash (e.g. "c:\"). + // For a UNC path it is the slash following the share name + // (e.g. "\\server\share\"). + int32_t rootIdx = 2; // default to local drive + if (path.First() == L'\\') { // if a share then calculate the rootIdx + rootIdx = path.FindChar(L'\\', 2); // skip \\ in front of the server + if (rootIdx == kNotFound) { + return NS_OK; // already normalized + } + rootIdx = path.FindChar(L'\\', rootIdx + 1); + if (rootIdx == kNotFound) { + return NS_OK; // already normalized + } + } else if (path.CharAt(rootIdx) != L'\\') { + // The path has been specified relative to the current working directory + // for that drive. To normalize it, the current working directory for + // that drive needs to be inserted before the supplied relative path + // which will provide an absolute path (and the rootIdx will still be 2). + WCHAR cwd[MAX_PATH]; + WCHAR* pcwd = cwd; + int drive = TOUPPER(path.First()) - 'A' + 1; + /* We need to worry about IPH, for details read bug 419326. + * _getdrives - http://msdn2.microsoft.com/en-us/library/xdhk0xd2.aspx + * uses a bitmask, bit 0 is 'a:' + * _chdrive - http://msdn2.microsoft.com/en-us/library/0d1409hb.aspx + * _getdcwd - http://msdn2.microsoft.com/en-us/library/7t2zk3s4.aspx + * take an int, 1 is 'a:'. + * + * Because of this, we need to do some math. Subtract 1 to convert from + * _chdrive/_getdcwd format to _getdrives drive numbering. + * Shift left x bits to convert from integer indexing to bitfield indexing. + * And of course, we need to find out if the drive is in the bitmask. + * + * If we're really unlucky, we can still lose, but only if the user + * manages to eject the drive between our call to _getdrives() and + * our *calls* to _wgetdcwd. + */ + if (!((1 << (drive - 1)) & _getdrives())) { + return NS_ERROR_FILE_INVALID_PATH; + } + if (!_wgetdcwd(drive, pcwd, MAX_PATH)) { + pcwd = _wgetdcwd(drive, 0, 0); + } + if (!pcwd) { + return NS_ERROR_OUT_OF_MEMORY; + } + nsAutoString currentDir(pcwd); + if (pcwd != cwd) { + free(pcwd); + } + + if (currentDir.Last() == '\\') { + path.Replace(0, 2, currentDir); + } else { + path.Replace(0, 2, currentDir + NS_LITERAL_STRING("\\")); + } + } + NS_POSTCONDITION(0 < rootIdx && rootIdx < (int32_t)path.Length(), "rootIdx is invalid"); + NS_POSTCONDITION(path.CharAt(rootIdx) == '\\', "rootIdx is invalid"); + + // if there is nothing following the root path then it is already normalized + if (rootIdx + 1 == (int32_t)path.Length()) { + return NS_OK; + } + + // assign the root + const char16_t* pathBuffer = path.get(); // simplify access to the buffer + mWorkingPath.SetCapacity(path.Length()); // it won't ever grow longer + mWorkingPath.Assign(pathBuffer, rootIdx); + + // Normalize the path components. The actions taken are: + // + // "\\" condense to single backslash + // "." remove from path + // ".." up a directory + // "..." remove from path (any number of dots > 2) + // + // The last form is something that Windows 95 and 98 supported and + // is a shortcut for changing up multiple directories. Windows XP + // and ilk ignore it in a path, as is done here. + int32_t len, begin, end = rootIdx; + while (end < (int32_t)path.Length()) { + // find the current segment (text between the backslashes) to + // be examined, this will set the following variables: + // begin == index of first char in segment + // end == index 1 char after last char in segment + // len == length of segment + begin = end + 1; + end = path.FindChar('\\', begin); + if (end == kNotFound) { + end = path.Length(); + } + len = end - begin; + + // ignore double backslashes + if (len == 0) { + continue; + } + + // len != 0, and interesting paths always begin with a dot + if (pathBuffer[begin] == '.') { + // ignore single dots + if (len == 1) { + continue; + } + + // handle multiple dots + if (len >= 2 && pathBuffer[begin + 1] == L'.') { + // back up a path component on double dot + if (len == 2) { + int32_t prev = mWorkingPath.RFindChar('\\'); + if (prev >= rootIdx) { + mWorkingPath.Truncate(prev); + } + continue; + } + + // length is > 2 and the first two characters are dots. + // if the rest of the string is dots, then ignore it. + int idx = len - 1; + for (; idx >= 2; --idx) { + if (pathBuffer[begin + idx] != L'.') { + break; + } + } + + // this is true if the loop above didn't break + // and all characters in this segment are dots. + if (idx < 2) { + continue; + } + } + } + + // add the current component to the path, including the preceding backslash + mWorkingPath.Append(pathBuffer + begin - 1, len + 1); + } + + // kill trailing dots and spaces. + int32_t filePathLen = mWorkingPath.Length() - 1; + while (filePathLen > 0 && (mWorkingPath[filePathLen] == L' ' || + mWorkingPath[filePathLen] == L'.')) { + mWorkingPath.Truncate(filePathLen--); + } + + MakeDirty(); + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::GetLeafName(nsAString& aLeafName) +{ + aLeafName.Truncate(); + + if (mWorkingPath.IsEmpty()) { + return NS_ERROR_FILE_UNRECOGNIZED_PATH; + } + + int32_t offset = mWorkingPath.RFindChar(L'\\'); + + // if the working path is just a node without any lashes. + if (offset == kNotFound) { + aLeafName = mWorkingPath; + } else { + aLeafName = Substring(mWorkingPath, offset + 1); + } + + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::SetLeafName(const nsAString& aLeafName) +{ + MakeDirty(); + + if (mWorkingPath.IsEmpty()) { + return NS_ERROR_FILE_UNRECOGNIZED_PATH; + } + + // cannot use nsCString::RFindChar() due to 0x5c problem + int32_t offset = mWorkingPath.RFindChar(L'\\'); + if (offset) { + mWorkingPath.Truncate(offset + 1); + } + mWorkingPath.Append(aLeafName); + + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::GetPath(nsAString& aResult) +{ + aResult = mWorkingPath; + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::GetCanonicalPath(nsAString& aResult) +{ + EnsureShortPath(); + aResult.Assign(mShortWorkingPath); + return NS_OK; +} + +typedef struct +{ + WORD wLanguage; + WORD wCodePage; +} LANGANDCODEPAGE; + +NS_IMETHODIMP +nsLocalFile::GetVersionInfoField(const char* aField, nsAString& aResult) +{ + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) { + return rv; + } + + rv = NS_ERROR_FAILURE; + + const WCHAR* path = + mFollowSymlinks ? mResolvedPath.get() : mWorkingPath.get(); + + DWORD dummy; + DWORD size = ::GetFileVersionInfoSizeW(path, &dummy); + if (!size) { + return rv; + } + + void* ver = moz_xcalloc(size, 1); + if (::GetFileVersionInfoW(path, 0, size, ver)) { + LANGANDCODEPAGE* translate = nullptr; + UINT pageCount; + BOOL queryResult = ::VerQueryValueW(ver, L"\\VarFileInfo\\Translation", + (void**)&translate, &pageCount); + if (queryResult && translate) { + for (int32_t i = 0; i < 2; ++i) { + wchar_t subBlock[MAX_PATH]; + _snwprintf(subBlock, MAX_PATH, + L"\\StringFileInfo\\%04x%04x\\%s", + (i == 0 ? translate[0].wLanguage : ::GetUserDefaultLangID()), + translate[0].wCodePage, + NS_ConvertASCIItoUTF16( + nsDependentCString(aField)).get()); + subBlock[MAX_PATH - 1] = 0; + LPVOID value = nullptr; + UINT size; + queryResult = ::VerQueryValueW(ver, subBlock, &value, &size); + if (queryResult && value) { + aResult.Assign(static_cast<char16_t*>(value)); + if (!aResult.IsEmpty()) { + rv = NS_OK; + break; + } + } + } + } + } + free(ver); + + return rv; +} + +NS_IMETHODIMP +nsLocalFile::SetShortcut(nsIFile* aTargetFile, + nsIFile* aWorkingDir, + const char16_t* aArgs, + const char16_t* aDescription, + nsIFile* aIconFile, + int32_t aIconIndex) +{ + bool exists; + nsresult rv = this->Exists(&exists); + if (NS_FAILED(rv)) { + return rv; + } + + const WCHAR* targetFilePath = nullptr; + const WCHAR* workingDirPath = nullptr; + const WCHAR* iconFilePath = nullptr; + + nsAutoString targetFilePathAuto; + if (aTargetFile) { + rv = aTargetFile->GetPath(targetFilePathAuto); + if (NS_FAILED(rv)) { + return rv; + } + targetFilePath = targetFilePathAuto.get(); + } + + nsAutoString workingDirPathAuto; + if (aWorkingDir) { + rv = aWorkingDir->GetPath(workingDirPathAuto); + if (NS_FAILED(rv)) { + return rv; + } + workingDirPath = workingDirPathAuto.get(); + } + + nsAutoString iconPathAuto; + if (aIconFile) { + rv = aIconFile->GetPath(iconPathAuto); + if (NS_FAILED(rv)) { + return rv; + } + iconFilePath = iconPathAuto.get(); + } + + rv = gResolver->SetShortcut(exists, + mWorkingPath.get(), + targetFilePath, + workingDirPath, + char16ptr_t(aArgs), + char16ptr_t(aDescription), + iconFilePath, + iconFilePath ? aIconIndex : 0); + if (targetFilePath && NS_SUCCEEDED(rv)) { + MakeDirty(); + } + + return rv; +} + +NS_IMETHODIMP +nsLocalFile::OpenNSPRFileDescShareDelete(int32_t aFlags, + int32_t aMode, + PRFileDesc** aResult) +{ + nsresult rv = OpenNSPRFileDescMaybeShareDelete(aFlags, aMode, true, aResult); + if (NS_FAILED(rv)) { + return rv; + } + + return NS_OK; +} + +/** + * Determines if the drive type for the specified file is rmeote or local. + * + * @param path The path of the file to check + * @param remote Out parameter, on function success holds true if the specified + * file path is remote, or false if the file path is local. + * @return true on success. The return value implies absolutely nothing about + * wether the file is local or remote. +*/ +static bool +IsRemoteFilePath(LPCWSTR aPath, bool& aRemote) +{ + // Obtain the parent directory path and make sure it ends with + // a trailing backslash. + WCHAR dirPath[MAX_PATH + 1] = { 0 }; + wcsncpy(dirPath, aPath, MAX_PATH); + if (!PathRemoveFileSpecW(dirPath)) { + return false; + } + size_t len = wcslen(dirPath); + // In case the dirPath holds exaclty MAX_PATH and remains unchanged, we + // recheck the required length here since we need to terminate it with + // a backslash. + if (len >= MAX_PATH) { + return false; + } + + dirPath[len] = L'\\'; + dirPath[len + 1] = L'\0'; + UINT driveType = GetDriveTypeW(dirPath); + aRemote = driveType == DRIVE_REMOTE; + return true; +} + +nsresult +nsLocalFile::CopySingleFile(nsIFile* aSourceFile, nsIFile* aDestParent, + const nsAString& aNewName, uint32_t aOptions) +{ + nsresult rv = NS_OK; + nsAutoString filePath; + + bool move = aOptions & (Move | Rename); + + // get the path that we are going to copy to. + // Since windows does not know how to auto + // resolve shortcuts, we must work with the + // target. + nsAutoString destPath; + aDestParent->GetTarget(destPath); + + destPath.Append('\\'); + + if (aNewName.IsEmpty()) { + nsAutoString aFileName; + aSourceFile->GetLeafName(aFileName); + destPath.Append(aFileName); + } else { + destPath.Append(aNewName); + } + + + if (aOptions & FollowSymlinks) { + rv = aSourceFile->GetTarget(filePath); + if (filePath.IsEmpty()) { + rv = aSourceFile->GetPath(filePath); + } + } else { + rv = aSourceFile->GetPath(filePath); + } + + if (NS_FAILED(rv)) { + return rv; + } + + // Pass the flag COPY_FILE_NO_BUFFERING to CopyFileEx as we may be copying + // to a SMBV2 remote drive. Without this parameter subsequent append mode + // file writes can cause the resultant file to become corrupt. We only need to do + // this if the major version of Windows is > 5(Only Windows Vista and above + // can support SMBV2). With a 7200RPM hard drive: + // Copying a 1KB file with COPY_FILE_NO_BUFFERING takes about 30-60ms. + // Copying a 1KB file without COPY_FILE_NO_BUFFERING takes < 1ms. + // So we only use COPY_FILE_NO_BUFFERING when we have a remote drive. + int copyOK; + DWORD dwCopyFlags = COPY_FILE_ALLOW_DECRYPTED_DESTINATION; + if (IsVistaOrLater()) { + bool path1Remote, path2Remote; + if (!IsRemoteFilePath(filePath.get(), path1Remote) || + !IsRemoteFilePath(destPath.get(), path2Remote) || + path1Remote || path2Remote) { + dwCopyFlags |= COPY_FILE_NO_BUFFERING; + } + } + + if (!move) { + copyOK = ::CopyFileExW(filePath.get(), destPath.get(), nullptr, + nullptr, nullptr, dwCopyFlags); + } else { + copyOK = ::MoveFileExW(filePath.get(), destPath.get(), + MOVEFILE_REPLACE_EXISTING); + + // Check if copying the source file to a different volume, + // as this could be an SMBV2 mapped drive. + if (!copyOK && GetLastError() == ERROR_NOT_SAME_DEVICE) { + if (aOptions & Rename) { + return NS_ERROR_FILE_ACCESS_DENIED; + } + copyOK = CopyFileExW(filePath.get(), destPath.get(), nullptr, + nullptr, nullptr, dwCopyFlags); + + if (copyOK) { + DeleteFileW(filePath.get()); + } + } + } + + if (!copyOK) { // CopyFileEx and MoveFileEx return zero at failure. + rv = ConvertWinError(GetLastError()); + } else if (move && !(aOptions & SkipNtfsAclReset)) { + // Set security permissions to inherit from parent. + // Note: propagates to all children: slow for big file trees + PACL pOldDACL = nullptr; + PSECURITY_DESCRIPTOR pSD = nullptr; + ::GetNamedSecurityInfoW((LPWSTR)destPath.get(), SE_FILE_OBJECT, + DACL_SECURITY_INFORMATION, + nullptr, nullptr, &pOldDACL, nullptr, &pSD); + if (pOldDACL) + ::SetNamedSecurityInfoW((LPWSTR)destPath.get(), SE_FILE_OBJECT, + DACL_SECURITY_INFORMATION | + UNPROTECTED_DACL_SECURITY_INFORMATION, + nullptr, nullptr, pOldDACL, nullptr); + if (pSD) { + LocalFree((HLOCAL)pSD); + } + } + + return rv; +} + +nsresult +nsLocalFile::CopyMove(nsIFile* aParentDir, const nsAString& aNewName, + uint32_t aOptions) +{ + bool move = aOptions & (Move | Rename); + bool followSymlinks = aOptions & FollowSymlinks; + + nsCOMPtr<nsIFile> newParentDir = aParentDir; + // check to see if this exists, otherwise return an error. + // we will check this by resolving. If the user wants us + // to follow links, then we are talking about the target, + // hence we can use the |FollowSymlinks| option. + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) { + return rv; + } + + if (!newParentDir) { + // no parent was specified. We must rename. + if (aNewName.IsEmpty()) { + return NS_ERROR_INVALID_ARG; + } + + rv = GetParent(getter_AddRefs(newParentDir)); + if (NS_FAILED(rv)) { + return rv; + } + } + + if (!newParentDir) { + return NS_ERROR_FILE_DESTINATION_NOT_DIR; + } + + // make sure it exists and is a directory. Create it if not there. + bool exists; + newParentDir->Exists(&exists); + if (!exists) { + rv = newParentDir->Create(DIRECTORY_TYPE, 0644); // TODO, what permissions should we use + if (NS_FAILED(rv)) { + return rv; + } + } else { + bool isDir; + newParentDir->IsDirectory(&isDir); + if (!isDir) { + if (followSymlinks) { + bool isLink; + newParentDir->IsSymlink(&isLink); + if (isLink) { + nsAutoString target; + newParentDir->GetTarget(target); + + nsCOMPtr<nsIFile> realDest = new nsLocalFile(); + rv = realDest->InitWithPath(target); + + if (NS_FAILED(rv)) { + return rv; + } + + return CopyMove(realDest, aNewName, aOptions); + } + } else { + return NS_ERROR_FILE_DESTINATION_NOT_DIR; + } + } + } + + // Try different ways to move/copy files/directories + bool done = false; + bool isDir; + IsDirectory(&isDir); + bool isSymlink; + IsSymlink(&isSymlink); + + // Try to move the file or directory, or try to copy a single file (or non-followed symlink) + if (move || !isDir || (isSymlink && !followSymlinks)) { + // Copy/Move single file, or move a directory + if (!aParentDir) { + aOptions |= SkipNtfsAclReset; + } + rv = CopySingleFile(this, newParentDir, aNewName, aOptions); + done = NS_SUCCEEDED(rv); + // If we are moving a directory and that fails, fallback on directory + // enumeration. See bug 231300 for details. + if (!done && !(move && isDir)) { + return rv; + } + } + + // Not able to copy or move directly, so enumerate it + if (!done) { + // create a new target destination in the new parentDir; + nsCOMPtr<nsIFile> target; + rv = newParentDir->Clone(getter_AddRefs(target)); + + if (NS_FAILED(rv)) { + return rv; + } + + nsAutoString allocatedNewName; + if (aNewName.IsEmpty()) { + bool isLink; + IsSymlink(&isLink); + if (isLink) { + nsAutoString temp; + GetTarget(temp); + int32_t offset = temp.RFindChar(L'\\'); + if (offset == kNotFound) { + allocatedNewName = temp; + } else { + allocatedNewName = Substring(temp, offset + 1); + } + } else { + GetLeafName(allocatedNewName);// this should be the leaf name of the + } + } else { + allocatedNewName = aNewName; + } + + rv = target->Append(allocatedNewName); + if (NS_FAILED(rv)) { + return rv; + } + + allocatedNewName.Truncate(); + + // check if the destination directory already exists + target->Exists(&exists); + if (!exists) { + // if the destination directory cannot be created, return an error + rv = target->Create(DIRECTORY_TYPE, 0644); // TODO, what permissions should we use + if (NS_FAILED(rv)) { + return rv; + } + } else { + // check if the destination directory is writable and empty + bool isWritable; + + target->IsWritable(&isWritable); + if (!isWritable) { + return NS_ERROR_FILE_ACCESS_DENIED; + } + + nsCOMPtr<nsISimpleEnumerator> targetIterator; + rv = target->GetDirectoryEntries(getter_AddRefs(targetIterator)); + if (NS_FAILED(rv)) { + return rv; + } + + bool more; + targetIterator->HasMoreElements(&more); + // return error if target directory is not empty + if (more) { + return NS_ERROR_FILE_DIR_NOT_EMPTY; + } + } + + RefPtr<nsDirEnumerator> dirEnum = new nsDirEnumerator(); + + rv = dirEnum->Init(this); + if (NS_FAILED(rv)) { + NS_WARNING("dirEnum initialization failed"); + return rv; + } + + bool more = false; + while (NS_SUCCEEDED(dirEnum->HasMoreElements(&more)) && more) { + nsCOMPtr<nsISupports> item; + nsCOMPtr<nsIFile> file; + dirEnum->GetNext(getter_AddRefs(item)); + file = do_QueryInterface(item); + if (file) { + bool isDir, isLink; + + file->IsDirectory(&isDir); + file->IsSymlink(&isLink); + + if (move) { + if (followSymlinks) { + return NS_ERROR_FAILURE; + } + + rv = file->MoveTo(target, EmptyString()); + if (NS_FAILED(rv)) { + return rv; + } + } else { + if (followSymlinks) { + rv = file->CopyToFollowingLinks(target, EmptyString()); + } else { + rv = file->CopyTo(target, EmptyString()); + } + if (NS_FAILED(rv)) { + return rv; + } + } + } + } + // we've finished moving all the children of this directory + // in the new directory. so now delete the directory + // note, we don't need to do a recursive delete. + // MoveTo() is recursive. At this point, + // we've already moved the children of the current folder + // to the new location. nothing should be left in the folder. + if (move) { + rv = Remove(false /* recursive */); + if (NS_FAILED(rv)) { + return rv; + } + } + } + + + // If we moved, we want to adjust this. + if (move) { + MakeDirty(); + + nsAutoString newParentPath; + newParentDir->GetPath(newParentPath); + + if (newParentPath.IsEmpty()) { + return NS_ERROR_FAILURE; + } + + if (aNewName.IsEmpty()) { + nsAutoString aFileName; + GetLeafName(aFileName); + + InitWithPath(newParentPath); + Append(aFileName); + } else { + InitWithPath(newParentPath); + Append(aNewName); + } + } + + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::CopyTo(nsIFile* aNewParentDir, const nsAString& aNewName) +{ + return CopyMove(aNewParentDir, aNewName, 0); +} + +NS_IMETHODIMP +nsLocalFile::CopyToFollowingLinks(nsIFile* aNewParentDir, + const nsAString& aNewName) +{ + return CopyMove(aNewParentDir, aNewName, FollowSymlinks); +} + +NS_IMETHODIMP +nsLocalFile::MoveTo(nsIFile* aNewParentDir, const nsAString& aNewName) +{ + return CopyMove(aNewParentDir, aNewName, Move); +} + +NS_IMETHODIMP +nsLocalFile::RenameTo(nsIFile* aNewParentDir, const nsAString& aNewName) +{ + nsCOMPtr<nsIFile> targetParentDir = aNewParentDir; + // check to see if this exists, otherwise return an error. + // we will check this by resolving. If the user wants us + // to follow links, then we are talking about the target, + // hence we can use the |followSymlinks| parameter. + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) { + return rv; + } + + if (!targetParentDir) { + // no parent was specified. We must rename. + if (aNewName.IsEmpty()) { + return NS_ERROR_INVALID_ARG; + } + rv = GetParent(getter_AddRefs(targetParentDir)); + if (NS_FAILED(rv)) { + return rv; + } + } + + if (!targetParentDir) { + return NS_ERROR_FILE_DESTINATION_NOT_DIR; + } + + // make sure it exists and is a directory. Create it if not there. + bool exists; + targetParentDir->Exists(&exists); + if (!exists) { + rv = targetParentDir->Create(DIRECTORY_TYPE, 0644); + if (NS_FAILED(rv)) { + return rv; + } + } else { + bool isDir; + targetParentDir->IsDirectory(&isDir); + if (!isDir) { + return NS_ERROR_FILE_DESTINATION_NOT_DIR; + } + } + + uint32_t options = Rename; + if (!aNewParentDir) { + options |= SkipNtfsAclReset; + } + // Move single file, or move a directory + return CopySingleFile(this, targetParentDir, aNewName, options); +} + +NS_IMETHODIMP +nsLocalFile::RenameToNative(nsIFile* aNewParentDir, const nsACString& aNewName) +{ + nsAutoString tmp; + nsresult rv = NS_CopyNativeToUnicode(aNewName, tmp); + if (NS_SUCCEEDED(rv)) { + return RenameTo(aNewParentDir, tmp); + } + + return rv; +} + +NS_IMETHODIMP +nsLocalFile::Load(PRLibrary** aResult) +{ + // Check we are correctly initialized. + CHECK_mWorkingPath(); + + bool isFile; + nsresult rv = IsFile(&isFile); + + if (NS_FAILED(rv)) { + return rv; + } + + if (!isFile) { + return NS_ERROR_FILE_IS_DIRECTORY; + } + +#ifdef NS_BUILD_REFCNT_LOGGING + nsTraceRefcnt::SetActivityIsLegal(false); +#endif + + PRLibSpec libSpec; + libSpec.value.pathname_u = mResolvedPath.get(); + libSpec.type = PR_LibSpec_PathnameU; + *aResult = PR_LoadLibraryWithFlags(libSpec, 0); + +#ifdef NS_BUILD_REFCNT_LOGGING + nsTraceRefcnt::SetActivityIsLegal(true); +#endif + + if (*aResult) { + return NS_OK; + } + return NS_ERROR_NULL_POINTER; +} + +NS_IMETHODIMP +nsLocalFile::Remove(bool aRecursive) +{ + // NOTE: + // + // if the working path points to a shortcut, then we will only + // delete the shortcut itself. even if the shortcut points to + // a directory, we will not recurse into that directory or + // delete that directory itself. likewise, if the shortcut + // points to a normal file, we will not delete the real file. + // this is done to be consistent with the other platforms that + // behave this way. we do this even if the followLinks attribute + // is set to true. this helps protect against misuse that could + // lead to security bugs (e.g., bug 210588). + // + // Since shortcut files are no longer permitted to be used as unix-like + // symlinks interspersed in the path (e.g. "c:/file.lnk/foo/bar.txt") + // this processing is a lot simpler. Even if the shortcut file is + // pointing to a directory, only the mWorkingPath value is used and so + // only the shortcut file will be deleted. + + // Check we are correctly initialized. + CHECK_mWorkingPath(); + + bool isDir, isLink; + nsresult rv; + + isDir = false; + rv = IsSymlink(&isLink); + if (NS_FAILED(rv)) { + return rv; + } + + // only check to see if we have a directory if it isn't a link + if (!isLink) { + rv = IsDirectory(&isDir); + if (NS_FAILED(rv)) { + return rv; + } + } + + if (isDir) { + if (aRecursive) { + RefPtr<nsDirEnumerator> dirEnum = new nsDirEnumerator(); + + rv = dirEnum->Init(this); + if (NS_FAILED(rv)) { + return rv; + } + + bool more = false; + while (NS_SUCCEEDED(dirEnum->HasMoreElements(&more)) && more) { + nsCOMPtr<nsISupports> item; + dirEnum->GetNext(getter_AddRefs(item)); + nsCOMPtr<nsIFile> file = do_QueryInterface(item); + if (file) { + file->Remove(aRecursive); + } + } + } + if (RemoveDirectoryW(mWorkingPath.get()) == 0) { + return ConvertWinError(GetLastError()); + } + } else { + if (DeleteFileW(mWorkingPath.get()) == 0) { + return ConvertWinError(GetLastError()); + } + } + + MakeDirty(); + return rv; +} + +NS_IMETHODIMP +nsLocalFile::GetLastModifiedTime(PRTime* aLastModifiedTime) +{ + // Check we are correctly initialized. + CHECK_mWorkingPath(); + + if (NS_WARN_IF(!aLastModifiedTime)) { + return NS_ERROR_INVALID_ARG; + } + + // get the modified time of the target as determined by mFollowSymlinks + // If true, then this will be for the target of the shortcut file, + // otherwise it will be for the shortcut file itself (i.e. the same + // results as GetLastModifiedTimeOfLink) + + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) { + return rv; + } + + // microseconds -> milliseconds + *aLastModifiedTime = mFileInfo64.modifyTime / PR_USEC_PER_MSEC; + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::GetLastModifiedTimeOfLink(PRTime* aLastModifiedTime) +{ + // Check we are correctly initialized. + CHECK_mWorkingPath(); + + if (NS_WARN_IF(!aLastModifiedTime)) { + return NS_ERROR_INVALID_ARG; + } + + // The caller is assumed to have already called IsSymlink + // and to have found that this file is a link. + + PRFileInfo64 info; + nsresult rv = GetFileInfo(mWorkingPath, &info); + if (NS_FAILED(rv)) { + return rv; + } + + // microseconds -> milliseconds + *aLastModifiedTime = info.modifyTime / PR_USEC_PER_MSEC; + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::SetLastModifiedTime(PRTime aLastModifiedTime) +{ + // Check we are correctly initialized. + CHECK_mWorkingPath(); + + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) { + return rv; + } + + // set the modified time of the target as determined by mFollowSymlinks + // If true, then this will be for the target of the shortcut file, + // otherwise it will be for the shortcut file itself (i.e. the same + // results as SetLastModifiedTimeOfLink) + + rv = SetModDate(aLastModifiedTime, mResolvedPath.get()); + if (NS_SUCCEEDED(rv)) { + MakeDirty(); + } + + return rv; +} + + +NS_IMETHODIMP +nsLocalFile::SetLastModifiedTimeOfLink(PRTime aLastModifiedTime) +{ + // The caller is assumed to have already called IsSymlink + // and to have found that this file is a link. + + nsresult rv = SetModDate(aLastModifiedTime, mWorkingPath.get()); + if (NS_SUCCEEDED(rv)) { + MakeDirty(); + } + + return rv; +} + +nsresult +nsLocalFile::SetModDate(PRTime aLastModifiedTime, const wchar_t* aFilePath) +{ + // The FILE_FLAG_BACKUP_SEMANTICS is required in order to change the + // modification time for directories. + HANDLE file = ::CreateFileW(aFilePath, // pointer to name of the file + GENERIC_WRITE, // access (write) mode + 0, // share mode + nullptr, // pointer to security attributes + OPEN_EXISTING, // how to create + FILE_FLAG_BACKUP_SEMANTICS, // file attributes + nullptr); + + if (file == INVALID_HANDLE_VALUE) { + return ConvertWinError(GetLastError()); + } + + FILETIME ft; + SYSTEMTIME st; + PRExplodedTime pret; + + // PR_ExplodeTime expects usecs... + PR_ExplodeTime(aLastModifiedTime * PR_USEC_PER_MSEC, PR_GMTParameters, &pret); + st.wYear = pret.tm_year; + st.wMonth = pret.tm_month + 1; // Convert start offset -- Win32: Jan=1; NSPR: Jan=0 + st.wDayOfWeek = pret.tm_wday; + st.wDay = pret.tm_mday; + st.wHour = pret.tm_hour; + st.wMinute = pret.tm_min; + st.wSecond = pret.tm_sec; + st.wMilliseconds = pret.tm_usec / 1000; + + nsresult rv = NS_OK; + // if at least one of these fails... + if (!(SystemTimeToFileTime(&st, &ft) != 0 && + SetFileTime(file, nullptr, &ft, &ft) != 0)) { + rv = ConvertWinError(GetLastError()); + } + + CloseHandle(file); + return rv; +} + +NS_IMETHODIMP +nsLocalFile::GetPermissions(uint32_t* aPermissions) +{ + if (NS_WARN_IF(!aPermissions)) { + return NS_ERROR_INVALID_ARG; + } + + // get the permissions of the target as determined by mFollowSymlinks + // If true, then this will be for the target of the shortcut file, + // otherwise it will be for the shortcut file itself (i.e. the same + // results as GetPermissionsOfLink) + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) { + return rv; + } + + bool isWritable, isExecutable; + IsWritable(&isWritable); + IsExecutable(&isExecutable); + + *aPermissions = PR_IRUSR | PR_IRGRP | PR_IROTH; // all read + if (isWritable) { + *aPermissions |= PR_IWUSR | PR_IWGRP | PR_IWOTH; // all write + } + if (isExecutable) { + *aPermissions |= PR_IXUSR | PR_IXGRP | PR_IXOTH; // all execute + } + + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::GetPermissionsOfLink(uint32_t* aPermissions) +{ + // Check we are correctly initialized. + CHECK_mWorkingPath(); + + if (NS_WARN_IF(!aPermissions)) { + return NS_ERROR_INVALID_ARG; + } + + // The caller is assumed to have already called IsSymlink + // and to have found that this file is a link. It is not + // possible for a link file to be executable. + + DWORD word = ::GetFileAttributesW(mWorkingPath.get()); + if (word == INVALID_FILE_ATTRIBUTES) { + return NS_ERROR_FILE_INVALID_PATH; + } + + bool isWritable = !(word & FILE_ATTRIBUTE_READONLY); + *aPermissions = PR_IRUSR | PR_IRGRP | PR_IROTH; // all read + if (isWritable) { + *aPermissions |= PR_IWUSR | PR_IWGRP | PR_IWOTH; // all write + } + + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::SetPermissions(uint32_t aPermissions) +{ + // Check we are correctly initialized. + CHECK_mWorkingPath(); + + // set the permissions of the target as determined by mFollowSymlinks + // If true, then this will be for the target of the shortcut file, + // otherwise it will be for the shortcut file itself (i.e. the same + // results as SetPermissionsOfLink) + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) { + return rv; + } + + // windows only knows about the following permissions + int mode = 0; + if (aPermissions & (PR_IRUSR | PR_IRGRP | PR_IROTH)) { // any read + mode |= _S_IREAD; + } + if (aPermissions & (PR_IWUSR | PR_IWGRP | PR_IWOTH)) { // any write + mode |= _S_IWRITE; + } + + if (_wchmod(mResolvedPath.get(), mode) == -1) { + return NS_ERROR_FAILURE; + } + + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::SetPermissionsOfLink(uint32_t aPermissions) +{ + // The caller is assumed to have already called IsSymlink + // and to have found that this file is a link. + + // windows only knows about the following permissions + int mode = 0; + if (aPermissions & (PR_IRUSR | PR_IRGRP | PR_IROTH)) { // any read + mode |= _S_IREAD; + } + if (aPermissions & (PR_IWUSR | PR_IWGRP | PR_IWOTH)) { // any write + mode |= _S_IWRITE; + } + + if (_wchmod(mWorkingPath.get(), mode) == -1) { + return NS_ERROR_FAILURE; + } + + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::GetFileSize(int64_t* aFileSize) +{ + if (NS_WARN_IF(!aFileSize)) { + return NS_ERROR_INVALID_ARG; + } + + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) { + return rv; + } + + *aFileSize = mFileInfo64.size; + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::GetFileSizeOfLink(int64_t* aFileSize) +{ + // Check we are correctly initialized. + CHECK_mWorkingPath(); + + if (NS_WARN_IF(!aFileSize)) { + return NS_ERROR_INVALID_ARG; + } + + // The caller is assumed to have already called IsSymlink + // and to have found that this file is a link. + + PRFileInfo64 info; + if (NS_FAILED(GetFileInfo(mWorkingPath, &info))) { + return NS_ERROR_FILE_INVALID_PATH; + } + + *aFileSize = info.size; + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::SetFileSize(int64_t aFileSize) +{ + // Check we are correctly initialized. + CHECK_mWorkingPath(); + + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) { + return rv; + } + + HANDLE hFile = ::CreateFileW(mResolvedPath.get(),// pointer to name of the file + GENERIC_WRITE, // access (write) mode + FILE_SHARE_READ, // share mode + nullptr, // pointer to security attributes + OPEN_EXISTING, // how to create + FILE_ATTRIBUTE_NORMAL, // file attributes + nullptr); + if (hFile == INVALID_HANDLE_VALUE) { + return ConvertWinError(GetLastError()); + } + + // seek the file pointer to the new, desired end of file + // and then truncate the file at that position + rv = NS_ERROR_FAILURE; + aFileSize = MyFileSeek64(hFile, aFileSize, FILE_BEGIN); + if (aFileSize != -1 && SetEndOfFile(hFile)) { + MakeDirty(); + rv = NS_OK; + } + + CloseHandle(hFile); + return rv; +} + +NS_IMETHODIMP +nsLocalFile::GetDiskSpaceAvailable(int64_t* aDiskSpaceAvailable) +{ + // Check we are correctly initialized. + CHECK_mWorkingPath(); + + if (NS_WARN_IF(!aDiskSpaceAvailable)) { + return NS_ERROR_INVALID_ARG; + } + + ResolveAndStat(); + + if (mFileInfo64.type == PR_FILE_FILE) { + // Since GetDiskFreeSpaceExW works only on directories, use the parent. + nsCOMPtr<nsIFile> parent; + if (NS_SUCCEEDED(GetParent(getter_AddRefs(parent))) && parent) { + return parent->GetDiskSpaceAvailable(aDiskSpaceAvailable); + } + } + + ULARGE_INTEGER liFreeBytesAvailableToCaller, liTotalNumberOfBytes; + if (::GetDiskFreeSpaceExW(mResolvedPath.get(), &liFreeBytesAvailableToCaller, + &liTotalNumberOfBytes, nullptr)) { + *aDiskSpaceAvailable = liFreeBytesAvailableToCaller.QuadPart; + return NS_OK; + } + *aDiskSpaceAvailable = 0; + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::GetParent(nsIFile** aParent) +{ + // Check we are correctly initialized. + CHECK_mWorkingPath(); + + if (NS_WARN_IF(!aParent)) { + return NS_ERROR_INVALID_ARG; + } + + // A two-character path must be a drive such as C:, so it has no parent + if (mWorkingPath.Length() == 2) { + *aParent = nullptr; + return NS_OK; + } + + int32_t offset = mWorkingPath.RFindChar(char16_t('\\')); + // adding this offset check that was removed in bug 241708 fixes mail + // directories that aren't relative to/underneath the profile dir. + // e.g., on a different drive. Before you remove them, please make + // sure local mail directories that aren't underneath the profile dir work. + if (offset == kNotFound) { + return NS_ERROR_FILE_UNRECOGNIZED_PATH; + } + + // A path of the form \\NAME is a top-level path and has no parent + if (offset == 1 && mWorkingPath[0] == L'\\') { + *aParent = nullptr; + return NS_OK; + } + + nsAutoString parentPath(mWorkingPath); + + if (offset > 0) { + parentPath.Truncate(offset); + } else { + parentPath.AssignLiteral("\\\\."); + } + + nsCOMPtr<nsIFile> localFile; + nsresult rv = NS_NewLocalFile(parentPath, mFollowSymlinks, + getter_AddRefs(localFile)); + + if (NS_FAILED(rv)) { + return rv; + } + + localFile.forget(aParent); + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::Exists(bool* aResult) +{ + // Check we are correctly initialized. + CHECK_mWorkingPath(); + + if (NS_WARN_IF(!aResult)) { + return NS_ERROR_INVALID_ARG; + } + *aResult = false; + + MakeDirty(); + nsresult rv = ResolveAndStat(); + *aResult = NS_SUCCEEDED(rv) || rv == NS_ERROR_FILE_IS_LOCKED; + + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::IsWritable(bool* aIsWritable) +{ + // Check we are correctly initialized. + CHECK_mWorkingPath(); + + // The read-only attribute on a FAT directory only means that it can't + // be deleted. It is still possible to modify the contents of the directory. + nsresult rv = IsDirectory(aIsWritable); + if (rv == NS_ERROR_FILE_ACCESS_DENIED) { + *aIsWritable = true; + return NS_OK; + } else if (rv == NS_ERROR_FILE_IS_LOCKED) { + // If the file is normally allowed write access + // we should still return that the file is writable. + } else if (NS_FAILED(rv)) { + return rv; + } + if (*aIsWritable) { + return NS_OK; + } + + // writable if the file doesn't have the readonly attribute + rv = HasFileAttribute(FILE_ATTRIBUTE_READONLY, aIsWritable); + if (rv == NS_ERROR_FILE_ACCESS_DENIED) { + *aIsWritable = false; + return NS_OK; + } else if (rv == NS_ERROR_FILE_IS_LOCKED) { + // If the file is normally allowed write access + // we should still return that the file is writable. + } else if (NS_FAILED(rv)) { + return rv; + } + *aIsWritable = !*aIsWritable; + + // If the read only attribute is not set, check to make sure + // we can open the file with write access. + if (*aIsWritable) { + PRFileDesc* file; + rv = OpenFile(mResolvedPath, PR_WRONLY, 0, false, &file); + if (NS_SUCCEEDED(rv)) { + PR_Close(file); + } else if (rv == NS_ERROR_FILE_ACCESS_DENIED) { + *aIsWritable = false; + } else if (rv == NS_ERROR_FILE_IS_LOCKED) { + // If it is locked and read only we would have + // gotten access denied + *aIsWritable = true; + } else { + return rv; + } + } + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::IsReadable(bool* aResult) +{ + // Check we are correctly initialized. + CHECK_mWorkingPath(); + + if (NS_WARN_IF(!aResult)) { + return NS_ERROR_INVALID_ARG; + } + *aResult = false; + + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) { + return rv; + } + + *aResult = true; + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::IsExecutable(bool* aResult) +{ + // Check we are correctly initialized. + CHECK_mWorkingPath(); + + if (NS_WARN_IF(!aResult)) { + return NS_ERROR_INVALID_ARG; + } + *aResult = false; + + nsresult rv; + + // only files can be executables + bool isFile; + rv = IsFile(&isFile); + if (NS_FAILED(rv)) { + return rv; + } + if (!isFile) { + return NS_OK; + } + + //TODO: shouldn't we be checking mFollowSymlinks here? + bool symLink; + rv = IsSymlink(&symLink); + if (NS_FAILED(rv)) { + return rv; + } + + nsAutoString path; + if (symLink) { + GetTarget(path); + } else { + GetPath(path); + } + + // kill trailing dots and spaces. + int32_t filePathLen = path.Length() - 1; + while (filePathLen > 0 && (path[filePathLen] == L' ' || + path[filePathLen] == L'.')) { + path.Truncate(filePathLen--); + } + + // Get extension. + int32_t dotIdx = path.RFindChar(char16_t('.')); + if (dotIdx != kNotFound) { + // Convert extension to lower case. + char16_t* p = path.BeginWriting(); + for (p += dotIdx + 1; *p; ++p) { + *p += (*p >= L'A' && *p <= L'Z') ? 'a' - 'A' : 0; + } + + // Search for any of the set of executable extensions. + static const char* const executableExts[] = { + "ad", + "ade", // access project extension + "adp", + "air", // Adobe AIR installer + "app", // executable application + "application", // from bug 348763 + "asp", + "bas", + "bat", + "chm", + "cmd", + "com", + "cpl", + "crt", + "exe", + "fxp", // FoxPro compiled app + "hlp", + "hta", + "inf", + "ins", + "isp", + "jar", // java application bundle + "js", + "jse", + "lnk", + "mad", // Access Module Shortcut + "maf", // Access + "mag", // Access Diagram Shortcut + "mam", // Access Macro Shortcut + "maq", // Access Query Shortcut + "mar", // Access Report Shortcut + "mas", // Access Stored Procedure + "mat", // Access Table Shortcut + "mau", // Media Attachment Unit + "mav", // Access View Shortcut + "maw", // Access Data Access Page + "mda", // Access Add-in, MDA Access 2 Workgroup + "mdb", + "mde", + "mdt", // Access Add-in Data + "mdw", // Access Workgroup Information + "mdz", // Access Wizard Template + "msc", + "msh", // Microsoft Shell + "mshxml", // Microsoft Shell + "msi", + "msp", + "mst", + "ops", // Office Profile Settings + "pcd", + "pif", + "plg", // Developer Studio Build Log + "prf", // windows system file + "prg", + "pst", + "reg", + "scf", // Windows explorer command + "scr", + "sct", + "shb", + "shs", + "url", + "vb", + "vbe", + "vbs", + "vsd", + "vsmacros", // Visual Studio .NET Binary-based Macro Project + "vss", + "vst", + "vsw", + "ws", + "wsc", + "wsf", + "wsh" + }; + nsDependentSubstring ext = Substring(path, dotIdx + 1); + for (size_t i = 0; i < ArrayLength(executableExts); ++i) { + if (ext.EqualsASCII(executableExts[i])) { + // Found a match. Set result and quit. + *aResult = true; + break; + } + } + } + + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::IsDirectory(bool* aResult) +{ + return HasFileAttribute(FILE_ATTRIBUTE_DIRECTORY, aResult); +} + +NS_IMETHODIMP +nsLocalFile::IsFile(bool* aResult) +{ + nsresult rv = HasFileAttribute(FILE_ATTRIBUTE_DIRECTORY, aResult); + if (NS_SUCCEEDED(rv)) { + *aResult = !*aResult; + } + return rv; +} + +NS_IMETHODIMP +nsLocalFile::IsHidden(bool* aResult) +{ + return HasFileAttribute(FILE_ATTRIBUTE_HIDDEN, aResult); +} + +nsresult +nsLocalFile::HasFileAttribute(DWORD aFileAttrib, bool* aResult) +{ + if (NS_WARN_IF(!aResult)) { + return NS_ERROR_INVALID_ARG; + } + + nsresult rv = Resolve(); + if (NS_FAILED(rv)) { + return rv; + } + + DWORD attributes = GetFileAttributesW(mResolvedPath.get()); + if (INVALID_FILE_ATTRIBUTES == attributes) { + return ConvertWinError(GetLastError()); + } + + *aResult = ((attributes & aFileAttrib) != 0); + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::IsSymlink(bool* aResult) +{ + // Check we are correctly initialized. + CHECK_mWorkingPath(); + + if (NS_WARN_IF(!aResult)) { + return NS_ERROR_INVALID_ARG; + } + + // unless it is a valid shortcut path it's not a symlink + if (!IsShortcutPath(mWorkingPath)) { + *aResult = false; + return NS_OK; + } + + // we need to know if this is a file or directory + nsresult rv = ResolveAndStat(); + if (NS_FAILED(rv)) { + return rv; + } + + // We should not check mFileInfo64.type here for PR_FILE_FILE because lnk + // files can point to directories or files. Important security checks + // depend on correctly identifying lnk files. mFileInfo64 now holds info + // about the target of the lnk file, not the actual lnk file! + *aResult = true; + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::IsSpecial(bool* aResult) +{ + return HasFileAttribute(FILE_ATTRIBUTE_SYSTEM, aResult); +} + +NS_IMETHODIMP +nsLocalFile::Equals(nsIFile* aInFile, bool* aResult) +{ + if (NS_WARN_IF(!aInFile)) { + return NS_ERROR_INVALID_ARG; + } + if (NS_WARN_IF(!aResult)) { + return NS_ERROR_INVALID_ARG; + } + + EnsureShortPath(); + + nsCOMPtr<nsILocalFileWin> lf(do_QueryInterface(aInFile)); + if (!lf) { + *aResult = false; + return NS_OK; + } + + nsAutoString inFilePath; + lf->GetCanonicalPath(inFilePath); + + // Ok : Win9x + *aResult = _wcsicmp(mShortWorkingPath.get(), inFilePath.get()) == 0; + + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::Contains(nsIFile* aInFile, bool* aResult) +{ + // Check we are correctly initialized. + CHECK_mWorkingPath(); + + *aResult = false; + + nsAutoString myFilePath; + if (NS_FAILED(GetTarget(myFilePath))) { + GetPath(myFilePath); + } + + uint32_t myFilePathLen = myFilePath.Length(); + + nsAutoString inFilePath; + if (NS_FAILED(aInFile->GetTarget(inFilePath))) { + aInFile->GetPath(inFilePath); + } + + // make sure that the |aInFile|'s path has a trailing separator. + if (inFilePath.Length() >= myFilePathLen && + inFilePath[myFilePathLen] == L'\\') { + if (_wcsnicmp(myFilePath.get(), inFilePath.get(), myFilePathLen) == 0) { + *aResult = true; + } + + } + + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::GetTarget(nsAString& aResult) +{ + aResult.Truncate(); +#if STRICT_FAKE_SYMLINKS + bool symLink; + + nsresult rv = IsSymlink(&symLink); + if (NS_FAILED(rv)) { + return rv; + } + + if (!symLink) { + return NS_ERROR_FILE_INVALID_PATH; + } +#endif + ResolveAndStat(); + + aResult = mResolvedPath; + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::GetFollowLinks(bool* aFollowLinks) +{ + *aFollowLinks = mFollowSymlinks; + return NS_OK; +} +NS_IMETHODIMP +nsLocalFile::SetFollowLinks(bool aFollowLinks) +{ + MakeDirty(); + mFollowSymlinks = aFollowLinks; + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::GetDirectoryEntries(nsISimpleEnumerator** aEntries) +{ + nsresult rv; + + *aEntries = nullptr; + if (mWorkingPath.EqualsLiteral("\\\\.")) { + RefPtr<nsDriveEnumerator> drives = new nsDriveEnumerator; + rv = drives->Init(); + if (NS_FAILED(rv)) { + return rv; + } + drives.forget(aEntries); + return NS_OK; + } + + RefPtr<nsDirEnumerator> dirEnum = new nsDirEnumerator(); + rv = dirEnum->Init(this); + if (NS_FAILED(rv)) { + return rv; + } + + dirEnum.forget(aEntries); + + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::GetPersistentDescriptor(nsACString& aPersistentDescriptor) +{ + CopyUTF16toUTF8(mWorkingPath, aPersistentDescriptor); + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::SetPersistentDescriptor(const nsACString& aPersistentDescriptor) +{ + if (IsUTF8(aPersistentDescriptor)) { + return InitWithPath(NS_ConvertUTF8toUTF16(aPersistentDescriptor)); + } else { + return InitWithNativePath(aPersistentDescriptor); + } +} + +NS_IMETHODIMP +nsLocalFile::GetFileAttributesWin(uint32_t* aAttribs) +{ + *aAttribs = 0; + DWORD dwAttrs = GetFileAttributesW(mWorkingPath.get()); + if (dwAttrs == INVALID_FILE_ATTRIBUTES) { + return NS_ERROR_FILE_INVALID_PATH; + } + + if (!(dwAttrs & FILE_ATTRIBUTE_NOT_CONTENT_INDEXED)) { + *aAttribs |= WFA_SEARCH_INDEXED; + } + + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::SetFileAttributesWin(uint32_t aAttribs) +{ + DWORD dwAttrs = GetFileAttributesW(mWorkingPath.get()); + if (dwAttrs == INVALID_FILE_ATTRIBUTES) { + return NS_ERROR_FILE_INVALID_PATH; + } + + if (aAttribs & WFA_SEARCH_INDEXED) { + dwAttrs &= ~FILE_ATTRIBUTE_NOT_CONTENT_INDEXED; + } else { + dwAttrs |= FILE_ATTRIBUTE_NOT_CONTENT_INDEXED; + } + + if (aAttribs & WFA_READONLY) { + dwAttrs |= FILE_ATTRIBUTE_READONLY; + } else if ((aAttribs & WFA_READWRITE) && + (dwAttrs & FILE_ATTRIBUTE_READONLY)) { + dwAttrs &= ~FILE_ATTRIBUTE_READONLY; + } + + if (SetFileAttributesW(mWorkingPath.get(), dwAttrs) == 0) { + return NS_ERROR_FAILURE; + } + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::Reveal() +{ + // This API should be main thread only + MOZ_ASSERT(NS_IsMainThread()); + + // make sure mResolvedPath is set + nsresult rv = Resolve(); + if (NS_FAILED(rv) && rv != NS_ERROR_FILE_NOT_FOUND) { + return rv; + } + + // To create a new thread, get the thread manager + nsCOMPtr<nsIThreadManager> tm = do_GetService(NS_THREADMANAGER_CONTRACTID); + nsCOMPtr<nsIThread> mythread; + rv = tm->NewThread(0, 0, getter_AddRefs(mythread)); + if (NS_FAILED(rv)) { + return rv; + } + + nsCOMPtr<nsIRunnable> runnable = new AsyncRevealOperation(mResolvedPath); + + // After the dispatch, the result runnable will shut down the worker + // thread, so we can let it go. + mythread->Dispatch(runnable, NS_DISPATCH_NORMAL); + return NS_OK; +} + +NS_IMETHODIMP +nsLocalFile::Launch() +{ + // This API should be main thread only + MOZ_ASSERT(NS_IsMainThread()); + + // make sure mResolvedPath is set + nsresult rv = Resolve(); + if (NS_FAILED(rv)) { + return rv; + } + + // use the app registry name to launch a shell execute.... + SHELLEXECUTEINFOW seinfo; + memset(&seinfo, 0, sizeof(seinfo)); + seinfo.cbSize = sizeof(SHELLEXECUTEINFOW); + seinfo.fMask = SEE_MASK_ASYNCOK; + seinfo.hwnd = GetMostRecentNavigatorHWND(); + seinfo.lpVerb = nullptr; + seinfo.lpFile = mResolvedPath.get(); + seinfo.lpParameters = nullptr; + seinfo.lpDirectory = nullptr; + seinfo.nShow = SW_SHOWNORMAL; + + // Use the directory of the file we're launching as the working + // directory. That way if we have a self extracting EXE it won't + // suggest to extract to the install directory. + WCHAR workingDirectory[MAX_PATH + 1] = { L'\0' }; + wcsncpy(workingDirectory, mResolvedPath.get(), MAX_PATH); + if (PathRemoveFileSpecW(workingDirectory)) { + seinfo.lpDirectory = workingDirectory; + } else { + NS_WARNING("Could not set working directory for launched file."); + } + + if (ShellExecuteExW(&seinfo)) { + return NS_OK; + } + DWORD r = GetLastError(); + // if the file has no association, we launch windows' + // "what do you want to do" dialog + if (r == SE_ERR_NOASSOC) { + nsAutoString shellArg; + shellArg.AssignLiteral(u"shell32.dll,OpenAs_RunDLL "); + shellArg.Append(mResolvedPath); + seinfo.lpFile = L"RUNDLL32.EXE"; + seinfo.lpParameters = shellArg.get(); + if (ShellExecuteExW(&seinfo)) { + return NS_OK; + } + r = GetLastError(); + } + if (r < 32) { + switch (r) { + case 0: + case SE_ERR_OOM: + return NS_ERROR_OUT_OF_MEMORY; + case ERROR_FILE_NOT_FOUND: + return NS_ERROR_FILE_NOT_FOUND; + case ERROR_PATH_NOT_FOUND: + return NS_ERROR_FILE_UNRECOGNIZED_PATH; + case ERROR_BAD_FORMAT: + return NS_ERROR_FILE_CORRUPTED; + case SE_ERR_ACCESSDENIED: + return NS_ERROR_FILE_ACCESS_DENIED; + case SE_ERR_ASSOCINCOMPLETE: + case SE_ERR_NOASSOC: + return NS_ERROR_UNEXPECTED; + case SE_ERR_DDEBUSY: + case SE_ERR_DDEFAIL: + case SE_ERR_DDETIMEOUT: + return NS_ERROR_NOT_AVAILABLE; + case SE_ERR_DLLNOTFOUND: + return NS_ERROR_FAILURE; + case SE_ERR_SHARE: + return NS_ERROR_FILE_IS_LOCKED; + default: + return NS_ERROR_FILE_EXECUTION_FAILED; + } + } + return NS_OK; +} + +nsresult +NS_NewLocalFile(const nsAString& aPath, bool aFollowLinks, nsIFile** aResult) +{ + RefPtr<nsLocalFile> file = new nsLocalFile(); + + file->SetFollowLinks(aFollowLinks); + + if (!aPath.IsEmpty()) { + nsresult rv = file->InitWithPath(aPath); + if (NS_FAILED(rv)) { + return rv; + } + } + + file.forget(aResult); + return NS_OK; +} + +//----------------------------------------------------------------------------- +// Native (lossy) interface +//----------------------------------------------------------------------------- + +NS_IMETHODIMP +nsLocalFile::InitWithNativePath(const nsACString& aFilePath) +{ + nsAutoString tmp; + nsresult rv = NS_CopyNativeToUnicode(aFilePath, tmp); + if (NS_SUCCEEDED(rv)) { + return InitWithPath(tmp); + } + + return rv; +} + +NS_IMETHODIMP +nsLocalFile::AppendNative(const nsACString& aNode) +{ + nsAutoString tmp; + nsresult rv = NS_CopyNativeToUnicode(aNode, tmp); + if (NS_SUCCEEDED(rv)) { + return Append(tmp); + } + + return rv; +} + +NS_IMETHODIMP +nsLocalFile::AppendRelativeNativePath(const nsACString& aNode) +{ + nsAutoString tmp; + nsresult rv = NS_CopyNativeToUnicode(aNode, tmp); + if (NS_SUCCEEDED(rv)) { + return AppendRelativePath(tmp); + } + return rv; +} + + +NS_IMETHODIMP +nsLocalFile::GetNativeLeafName(nsACString& aLeafName) +{ + //NS_WARNING("This API is lossy. Use GetLeafName !"); + nsAutoString tmp; + nsresult rv = GetLeafName(tmp); + if (NS_SUCCEEDED(rv)) { + rv = NS_CopyUnicodeToNative(tmp, aLeafName); + } + + return rv; +} + +NS_IMETHODIMP +nsLocalFile::SetNativeLeafName(const nsACString& aLeafName) +{ + nsAutoString tmp; + nsresult rv = NS_CopyNativeToUnicode(aLeafName, tmp); + if (NS_SUCCEEDED(rv)) { + return SetLeafName(tmp); + } + + return rv; +} + + +NS_IMETHODIMP +nsLocalFile::GetNativePath(nsACString& aResult) +{ + //NS_WARNING("This API is lossy. Use GetPath !"); + nsAutoString tmp; + nsresult rv = GetPath(tmp); + if (NS_SUCCEEDED(rv)) { + rv = NS_CopyUnicodeToNative(tmp, aResult); + } + + return rv; +} + + +NS_IMETHODIMP +nsLocalFile::GetNativeCanonicalPath(nsACString& aResult) +{ + NS_WARNING("This method is lossy. Use GetCanonicalPath !"); + EnsureShortPath(); + NS_CopyUnicodeToNative(mShortWorkingPath, aResult); + return NS_OK; +} + + +NS_IMETHODIMP +nsLocalFile::CopyToNative(nsIFile* aNewParentDir, const nsACString& aNewName) +{ + // Check we are correctly initialized. + CHECK_mWorkingPath(); + + if (aNewName.IsEmpty()) { + return CopyTo(aNewParentDir, EmptyString()); + } + + nsAutoString tmp; + nsresult rv = NS_CopyNativeToUnicode(aNewName, tmp); + if (NS_SUCCEEDED(rv)) { + return CopyTo(aNewParentDir, tmp); + } + + return rv; +} + +NS_IMETHODIMP +nsLocalFile::CopyToFollowingLinksNative(nsIFile* aNewParentDir, + const nsACString& aNewName) +{ + if (aNewName.IsEmpty()) { + return CopyToFollowingLinks(aNewParentDir, EmptyString()); + } + + nsAutoString tmp; + nsresult rv = NS_CopyNativeToUnicode(aNewName, tmp); + if (NS_SUCCEEDED(rv)) { + return CopyToFollowingLinks(aNewParentDir, tmp); + } + + return rv; +} + +NS_IMETHODIMP +nsLocalFile::MoveToNative(nsIFile* aNewParentDir, const nsACString& aNewName) +{ + // Check we are correctly initialized. + CHECK_mWorkingPath(); + + if (aNewName.IsEmpty()) { + return MoveTo(aNewParentDir, EmptyString()); + } + + nsAutoString tmp; + nsresult rv = NS_CopyNativeToUnicode(aNewName, tmp); + if (NS_SUCCEEDED(rv)) { + return MoveTo(aNewParentDir, tmp); + } + + return rv; +} + +NS_IMETHODIMP +nsLocalFile::GetNativeTarget(nsACString& aResult) +{ + // Check we are correctly initialized. + CHECK_mWorkingPath(); + + NS_WARNING("This API is lossy. Use GetTarget !"); + nsAutoString tmp; + nsresult rv = GetTarget(tmp); + if (NS_SUCCEEDED(rv)) { + rv = NS_CopyUnicodeToNative(tmp, aResult); + } + + return rv; +} + +nsresult +NS_NewNativeLocalFile(const nsACString& aPath, bool aFollowLinks, + nsIFile** aResult) +{ + nsAutoString buf; + nsresult rv = NS_CopyNativeToUnicode(aPath, buf); + if (NS_FAILED(rv)) { + *aResult = nullptr; + return rv; + } + return NS_NewLocalFile(buf, aFollowLinks, aResult); +} + +void +nsLocalFile::EnsureShortPath() +{ + if (!mShortWorkingPath.IsEmpty()) { + return; + } + + WCHAR shortPath[MAX_PATH + 1]; + DWORD lengthNeeded = ::GetShortPathNameW(mWorkingPath.get(), shortPath, + ArrayLength(shortPath)); + // If an error occurred then lengthNeeded is set to 0 or the length of the + // needed buffer including null termination. If it succeeds the number of + // wide characters not including null termination is returned. + if (lengthNeeded != 0 && lengthNeeded < ArrayLength(shortPath)) { + mShortWorkingPath.Assign(shortPath); + } else { + mShortWorkingPath.Assign(mWorkingPath); + } +} + +// nsIHashable + +NS_IMETHODIMP +nsLocalFile::Equals(nsIHashable* aOther, bool* aResult) +{ + nsCOMPtr<nsIFile> otherfile(do_QueryInterface(aOther)); + if (!otherfile) { + *aResult = false; + return NS_OK; + } + + return Equals(otherfile, aResult); +} + +NS_IMETHODIMP +nsLocalFile::GetHashCode(uint32_t* aResult) +{ + // In order for short and long path names to hash to the same value we + // always hash on the short pathname. + EnsureShortPath(); + + *aResult = HashString(mShortWorkingPath); + return NS_OK; +} + +//----------------------------------------------------------------------------- +// nsLocalFile <static members> +//----------------------------------------------------------------------------- + +void +nsLocalFile::GlobalInit() +{ + DebugOnly<nsresult> rv = NS_CreateShortcutResolver(); + NS_ASSERTION(NS_SUCCEEDED(rv), "Shortcut resolver could not be created"); +} + +void +nsLocalFile::GlobalShutdown() +{ + NS_DestroyShortcutResolver(); +} + +NS_IMPL_ISUPPORTS(nsDriveEnumerator, nsISimpleEnumerator) + +nsDriveEnumerator::nsDriveEnumerator() +{ +} + +nsDriveEnumerator::~nsDriveEnumerator() +{ +} + +nsresult +nsDriveEnumerator::Init() +{ + /* If the length passed to GetLogicalDriveStrings is smaller + * than the length of the string it would return, it returns + * the length required for the string. */ + DWORD length = GetLogicalDriveStringsW(0, 0); + /* The string is null terminated */ + if (!mDrives.SetLength(length + 1, fallible)) { + return NS_ERROR_OUT_OF_MEMORY; + } + if (!GetLogicalDriveStringsW(length, wwc(mDrives.BeginWriting()))) { + return NS_ERROR_FAILURE; + } + mDrives.BeginReading(mStartOfCurrentDrive); + mDrives.EndReading(mEndOfDrivesString); + return NS_OK; +} + +NS_IMETHODIMP +nsDriveEnumerator::HasMoreElements(bool* aHasMore) +{ + *aHasMore = *mStartOfCurrentDrive != L'\0'; + return NS_OK; +} + +NS_IMETHODIMP +nsDriveEnumerator::GetNext(nsISupports** aNext) +{ + /* GetLogicalDrives stored in mDrives is a concatenation + * of null terminated strings, followed by a null terminator. + * mStartOfCurrentDrive is an iterator pointing at the first + * character of the current drive. */ + if (*mStartOfCurrentDrive == L'\0') { + *aNext = nullptr; + return NS_OK; + } + + nsAString::const_iterator driveEnd = mStartOfCurrentDrive; + FindCharInReadable(L'\0', driveEnd, mEndOfDrivesString); + nsString drive(Substring(mStartOfCurrentDrive, driveEnd)); + mStartOfCurrentDrive = ++driveEnd; + + nsIFile* file; + nsresult rv = NS_NewLocalFile(drive, false, &file); + + *aNext = file; + return rv; +} |