mozilla
/
gecko-dev
зеркало из https://github.com/mozilla/gecko-dev.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность
gecko-dev/xpcom/io/nsLocalFileWin.cpp

3027 строки
84 KiB
C++
Исходник Ответственный История

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998-1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Doug Turner <dougt@netscape.com>
* Dean Tessman <dean_tessman@hotmail.com>
* Brodie Thiesfield <brofield@jellycan.com>
* Jungshik Shin <jshin@i18nl10n.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsCOMPtr.h"
#include "nsMemory.h"
#include "nsLocalFile.h"
#include "nsIDirectoryEnumerator.h"
#include "nsNativeCharsetUtils.h"
#include "nsWinAPIs.h"
#include "nsISimpleEnumerator.h"
#include "nsIComponentManager.h"
#include "prtypes.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 "shellapi.h"
#include "shlguid.h"
#include <io.h>
#include <stdio.h>
#include <stdlib.h>
#include <mbstring.h>
#include "nsXPIDLString.h"
#include "prproces.h"
#include "nsITimelineService.h"
#include "nsAutoLock.h"
#include "SpecialSystemDirectory.h"
// _mbsstr isn't declared in w32api headers but it's there in the libs
#ifdef __MINGW32__
extern "C" {
unsigned char *_mbsstr( const unsigned char *str,
const unsigned char *substr );
}
#endif
class nsDriveEnumerator : public nsISimpleEnumerator
{
public:
nsDriveEnumerator();
virtual ~nsDriveEnumerator();
NS_DECL_ISUPPORTS
NS_DECL_NSISIMPLEENUMERATOR
nsresult Init();
private:
/* mDrives and mLetter share data
* Init sets them.
* HasMoreElements reads mLetter.
* GetNext advances mLetter.
*/
nsCString mDrives;
const char *mLetter;
};
//----------------------------------------------------------------------------
// short cut resolver
//----------------------------------------------------------------------------
#ifndef WINCE
class ShortcutResolver
{
public:
ShortcutResolver();
// nonvirtual since we're not subclassed
~ShortcutResolver();
nsresult Init();
nsresult Resolve(const WCHAR* in, WCHAR* out);
private:
PRLock* mLock;
IPersistFile* mPersistFile;
// Win 95 and 98 don't have IShellLinkW
union
{
IShellLinkW* W;
IShellLinkA* A;
} mShellLink;
};
ShortcutResolver::ShortcutResolver()
{
mLock = nsnull;
mPersistFile = nsnull;
mShellLink.W = nsnull;
}
ShortcutResolver::~ShortcutResolver()
{
if (mLock)
PR_DestroyLock(mLock);
// Release the pointer to the IPersistFile interface.
if (mPersistFile)
mPersistFile->Release();
// Release the pointer to the IShellLink interface.
if (NS_UseUnicode())
{
if (mShellLink.W)
mShellLink.W->Release();
}
else
{
if (mShellLink.A)
mShellLink.A->Release();
}
CoUninitialize();
}
nsresult
ShortcutResolver::Init()
{
CoInitialize(NULL); // FIX: we should probably move somewhere higher up during startup
mLock = PR_NewLock();
if (!mLock)
return NS_ERROR_FAILURE;
HRESULT hres;
if (NS_UseUnicode())
{
hres = CoCreateInstance(CLSID_ShellLink,
NULL,
CLSCTX_INPROC_SERVER,
IID_IShellLinkW,
(void**)&(mShellLink.W));
if (SUCCEEDED(hres))
{
// Get a pointer to the IPersistFile interface.
hres = mShellLink.W->QueryInterface(IID_IPersistFile,
(void**)&mPersistFile);
}
}
else
{
hres = CoCreateInstance(CLSID_ShellLink,
NULL,
CLSCTX_INPROC_SERVER,
IID_IShellLinkA,
(void**)&(mShellLink.A));
if (SUCCEEDED(hres))
{
// Get a pointer to the IPersistFile interface.
hres = mShellLink.A->QueryInterface(IID_IPersistFile,
(void**)&mPersistFile);
}
}
if (mPersistFile == nsnull || mShellLink.W == nsnull)
return NS_ERROR_FAILURE;
return NS_OK;
}
// |out| must be an allocated buffer of size MAX_PATH
nsresult
ShortcutResolver::Resolve(const WCHAR* in, WCHAR* out)
{
nsAutoLock lock(mLock);
// see if we can Load the path.
HRESULT hres = mPersistFile->Load(in, STGM_READ);
if (FAILED(hres))
return NS_ERROR_FAILURE;
// Resolve the link.
hres = mShellLink.W->Resolve(nsnull, SLR_NO_UI );
if (FAILED(hres))
return NS_ERROR_FAILURE;
// Get the path to the link target.
if (NS_UseUnicode())
hres = mShellLink.W->GetPath( out, MAX_PATH, NULL, SLGP_UNCPRIORITY );
else {
char tmp[MAX_PATH];
hres = mShellLink.A->GetPath( tmp, MAX_PATH, NULL, SLGP_UNCPRIORITY );
if (SUCCEEDED(hres))
NS_ConvertAtoW(tmp, MAX_PATH, out);
}
if (FAILED(hres))
return NS_ERROR_FAILURE;
return NS_OK;
}
static ShortcutResolver * gResolver = nsnull;
static nsresult NS_CreateShortcutResolver()
{
gResolver = new ShortcutResolver();
if (!gResolver)
return NS_ERROR_OUT_OF_MEMORY;
return gResolver->Init();
}
static void NS_DestroyShortcutResolver()
{
delete gResolver;
gResolver = nsnull;
}
#endif
//-----------------------------------------------------------------------------
// static helper functions
//-----------------------------------------------------------------------------
// certainly not all the error that can be
// encountered, but many of them common ones
static nsresult ConvertWinError(DWORD winErr)
{
nsresult rv;
switch (winErr)
{
case ERROR_FILE_NOT_FOUND:
case ERROR_PATH_NOT_FOUND:
case ERROR_INVALID_DRIVE:
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_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 0:
rv = NS_OK;
break;
default:
rv = NS_ERROR_FAILURE;
break;
}
return rv;
}
// definition of INVALID_SET_FILE_POINTER from VC.NET header files
// it doesn't appear to be defined by VC6
#ifndef INVALID_SET_FILE_POINTER
# define INVALID_SET_FILE_POINTER ((DWORD)-1)
#endif
// same goes for INVALID_FILE_ATTRIBUTES
#ifndef INVALID_FILE_ATTRIBUTES
# define INVALID_FILE_ATTRIBUTES ((DWORD)-1)
#endif
// 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 PRBool
IsShortcutPath(const nsAString &path)
{
// 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.
NS_ABORT_IF_FALSE(!path.IsEmpty(), "don't pass an empty string");
PRInt32 len = path.Length();
return (StringTail(path, 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 {
PRInt32 state;
PRBool nonblocking;
_PRTriStateBool inheritable;
PRFileDesc *next;
PRIntn lockCount; /* 0: not locked
* -1: a native lockfile call is in progress
* > 0: # times the file is locked */
PRBool 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
static nsresult
OpenFile(const nsAFlatString &name, PRIntn osflags, PRIntn mode,
PRFileDesc **fd)
{
// XXX : 'mode' is not translated !!!
PRInt32 access = 0;
PRInt32 flags = 0;
PRInt32 flag6 = 0;
if (osflags & PR_SYNC) flag6 = FILE_FLAG_WRITE_THROUGH;
if (osflags & PR_RDONLY || osflags & PR_RDWR)
access |= GENERIC_READ;
if (osflags & PR_WRONLY || osflags & PR_RDWR)
access |= GENERIC_WRITE;
if ( osflags & PR_CREATE_FILE && osflags & PR_EXCL )
flags = CREATE_NEW;
else if (osflags & PR_CREATE_FILE) {
if (osflags & PR_TRUNCATE)
flags = CREATE_ALWAYS;
else
flags = OPEN_ALWAYS;
} else {
if (osflags & PR_TRUNCATE)
flags = TRUNCATE_EXISTING;
else
flags = OPEN_EXISTING;
}
HANDLE file = nsWinAPIs::mCreateFile(name.get(), access,
FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL, flags, flag6, NULL);
if (file == INVALID_HANDLE_VALUE) {
*fd = nsnull;
return ConvertWinError(GetLastError());
}
*fd = PR_ImportFile((PROsfd) file);
if (*fd) {
// 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)
(*fd)->secret->appendMode = (PR_APPEND & osflags) ? PR_TRUE : PR_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 *filetime, PRTime *prtm)
{
#ifdef __GNUC__
const PRTime _pr_filetime_offset = 116444736000000000LL;
#else
const PRTime _pr_filetime_offset = 116444736000000000i64;
#endif
PR_ASSERT(sizeof(FILETIME) == sizeof(PRTime));
::CopyMemory(prtm, filetime, sizeof(PRTime));
#ifdef __GNUC__
*prtm = (*prtm - _pr_filetime_offset) / 10LL;
#else
*prtm = (*prtm - _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 &name, PRFileInfo64 *info)
{
WIN32_FILE_ATTRIBUTE_DATA fileData;
if (name.IsEmpty() || name.FindCharInSet(L"?*") != kNotFound)
return NS_ERROR_INVALID_ARG;
// GetFileAttributesExW/A were confirmed to work correctly
// with a filename ending with a slash and a root directory except on Win95
// without MS IE 4 or later (see |mGetFileAttributesEx| in nsWinAPIs.cpp.)
// Therefore, we don't need to add a fallback as done in
// _PR_MD_GETFILEINFO64 (w95io.c)
if (!nsWinAPIs::mGetFileAttributesEx(name.get(), GetFileExInfoStandard,
&fileData))
return ConvertWinError(GetLastError());
if (fileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
info->type = PR_FILE_DIRECTORY;
} else {
info->type = PR_FILE_FILE;
}
info->size = fileData.nFileSizeHigh;
info->size = (info->size << 32) + fileData.nFileSizeLow;
FileTimeToPRTime(&fileData.ftLastWriteTime, &info->modifyTime);
if (0 == fileData.ftCreationTime.dwLowDateTime &&
0 == fileData.ftCreationTime.dwHighDateTime) {
info->creationTime = info->modifyTime;
} else {
FileTimeToPRTime(&fileData.ftCreationTime, &info->creationTime);
}
return NS_OK;
}
struct nsDir
{
HANDLE handle;
union
{
WIN32_FIND_DATAW dataW;
WIN32_FIND_DATAA dataA;
} entry;
PRBool firstEntry;
};
static nsresult
OpenDir(const nsAFlatString &name, nsDir * *dir)
{
NS_ENSURE_ARG_POINTER(dir);
*dir = nsnull;
if (name.Length() + 3 >= MAX_PATH)
return NS_ERROR_FILE_NAME_TOO_LONG;
nsDir *d = PR_NEW(nsDir);
if (!d)
return NS_ERROR_OUT_OF_MEMORY;
nsAutoString filename(name);
//If 'name' ends in a slash or backslash, do not append
//another backslash.
if (filename.Last() == L'/' || filename.Last() == L'\\')
filename.AppendASCII("*");
else
filename.AppendASCII("\\*");
filename.ReplaceChar(L'/', L'\\');
if (NS_UseUnicode())
d->handle = ::FindFirstFileW(filename.get(), &(d->entry.dataW) );
else
{
nsCAutoString filenameA;
NS_CopyUnicodeToNative(filename, filenameA);
d->handle = ::FindFirstFileA(filenameA.get(), &(d->entry.dataA) );
}
if ( d->handle == INVALID_HANDLE_VALUE )
{
PR_Free(d);
return ConvertWinError(GetLastError());
}
d->firstEntry = PR_TRUE;
*dir = d;
return NS_OK;
}
static nsresult
ReadDir(nsDir *dir, PRDirFlags flags, nsString& name)
{
name.Truncate();
NS_ENSURE_ARG(dir);
while (1) {
BOOL rv;
if (dir->firstEntry)
{
dir->firstEntry = PR_FALSE;
rv = 1;
} else
if (NS_UseUnicode())
rv = ::FindNextFileW(dir->handle, &(dir->entry.dataW));
else
rv = ::FindNextFileA(dir->handle, &(dir->entry.dataA));
if (rv == 0)
break;
const PRUnichar *fileName;
nsString tmp;
if (NS_UseUnicode())
fileName = (dir)->entry.dataW.cFileName;
else
{
NS_CopyNativeToUnicode(nsDependentCString((dir)->
entry.dataA.cFileName),
tmp);
fileName = tmp.get();
}
if ((flags & PR_SKIP_DOT) &&
(fileName[0] == L'.') && (fileName[1] == L'\0'))
continue;
if ((flags & PR_SKIP_DOT_DOT) &&
(fileName[0] == L'.') && (fileName[1] == L'.') &&
(fileName[2] == L'\0'))
continue;
// Perhaps, we can just get away with using entry.dataW.dwFileAttributes
// because dwFileAttributes is the first field of both WIN32_FIND_DATAW
// and WIN32_FIND_DATAA, but let's be on the safe side here.
DWORD attrib = NS_UseUnicode() ? dir->entry.dataW.dwFileAttributes :
dir->entry.dataA.dwFileAttributes;
if ((flags & PR_SKIP_HIDDEN) && (attrib & FILE_ATTRIBUTE_HIDDEN))
continue;
if (fileName == tmp.get())
name = tmp;
else
name = fileName;
return NS_OK;
}
DWORD err = GetLastError();
return err == ERROR_NO_MORE_FILES ? NS_OK : ConvertWinError(err);
}
static nsresult
CloseDir(nsDir *d)
{
NS_ENSURE_ARG(d);
BOOL isOk = FindClose(d->handle);
PR_DELETE(d);
return isOk ? NS_OK : ConvertWinError(GetLastError());
}
//-----------------------------------------------------------------------------
// nsDirEnumerator
//-----------------------------------------------------------------------------
class nsDirEnumerator : public nsISimpleEnumerator,
public nsIDirectoryEnumerator
{
public:
NS_DECL_ISUPPORTS
nsDirEnumerator() : mDir(nsnull)
{
}
nsresult Init(nsILocalFile* parent)
{
nsAutoString filepath;
parent->GetTarget(filepath);
if (filepath.IsEmpty())
{
parent->GetPath(filepath);
}
if (filepath.IsEmpty())
{
return NS_ERROR_UNEXPECTED;
}
nsresult rv = OpenDir(filepath, &mDir);
if (NS_FAILED(rv))
return rv;
mParent = parent;
return NS_OK;
}
NS_IMETHOD HasMoreElements(PRBool *result)
{
nsresult rv;
if (mNext == nsnull && 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;
mDir = nsnull;
*result = PR_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;
// make sure the thing exists. If it does, try the next one.
PRBool exists;
rv = file->Exists(&exists);
if (NS_FAILED(rv) || !exists)
{
return HasMoreElements(result);
}
mNext = do_QueryInterface(file);
}
*result = mNext != nsnull;
if (!*result)
Close();
return NS_OK;
}
NS_IMETHOD GetNext(nsISupports **result)
{
nsresult rv;
PRBool hasMore;
rv = HasMoreElements(&hasMore);
if (NS_FAILED(rv)) return rv;
*result = mNext; // might return nsnull
NS_IF_ADDREF(*result);
mNext = nsnull;
return NS_OK;
}
NS_IMETHOD GetNextFile(nsIFile **result)
{
*result = nsnull;
PRBool hasMore = PR_FALSE;
nsresult rv = HasMoreElements(&hasMore);
if (NS_FAILED(rv) || !hasMore)
return rv;
*result = mNext;
NS_IF_ADDREF(*result);
mNext = nsnull;
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;
mDir = nsnull;
}
return NS_OK;
}
// dtor can be non-virtual since there are no subclasses, but must be
// public to use the class on the stack.
~nsDirEnumerator()
{
Close();
}
protected:
nsDir* mDir;
nsCOMPtr<nsILocalFile> mParent;
nsCOMPtr<nsILocalFile> mNext;
};
NS_IMPL_ISUPPORTS2(nsDirEnumerator, nsISimpleEnumerator, nsIDirectoryEnumerator)
//-----------------------------------------------------------------------------
// nsLocalFile <public>
//-----------------------------------------------------------------------------
nsLocalFile::nsLocalFile()
: mDirty(PR_TRUE)
, mFollowSymlinks(PR_FALSE)
{
}
NS_METHOD
nsLocalFile::nsLocalFileConstructor(nsISupports* outer, const nsIID& aIID, void* *aInstancePtr)
{
NS_ENSURE_ARG_POINTER(aInstancePtr);
NS_ENSURE_NO_AGGREGATION(outer);
nsLocalFile* inst = new nsLocalFile();
if (inst == NULL)
return NS_ERROR_OUT_OF_MEMORY;
nsresult rv = inst->QueryInterface(aIID, aInstancePtr);
if (NS_FAILED(rv))
{
delete inst;
return rv;
}
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsLocalFile::nsISupports
//-----------------------------------------------------------------------------
NS_IMPL_THREADSAFE_ISUPPORTS4(nsLocalFile,
nsILocalFile,
nsIFile,
nsILocalFileWin,
nsIHashable)
//-----------------------------------------------------------------------------
// nsLocalFile <private>
//-----------------------------------------------------------------------------
nsLocalFile::nsLocalFile(const nsLocalFile& other)
: mDirty(PR_TRUE)
, mFollowSymlinks(other.mFollowSymlinks)
, mWorkingPath(other.mWorkingPath)
{
}
// Resolve the shortcut file from mWorkingPath and write the path
// it points to into mResolvedPath.
nsresult
nsLocalFile::ResolveShortcut()
{
#ifndef WINCE
// 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;
PRUnichar *resolvedPath = 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;
#else
return NS_OK;
#endif
}
// 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;
// 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.AppendASCII("\\");
// first we will see if the working path exists. If it doesn't then
// there is nothing more that can be done
if (NS_FAILED(GetFileInfo(nsprPath, &mFileInfo64)))
return NS_ERROR_FILE_NOT_FOUND;
// 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 = PR_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;
}
// get the details of the resolved path
if (NS_FAILED(GetFileInfo(mResolvedPath, &mFileInfo64)))
return NS_ERROR_FILE_NOT_FOUND;
mDirty = PR_FALSE;
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsLocalFile::nsIFile,nsILocalFile
//-----------------------------------------------------------------------------
NS_IMETHODIMP
nsLocalFile::Clone(nsIFile **file)
{
// Just copy-construct ourselves
*file = new nsLocalFile(*this);
if (!*file)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(*file);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::InitWithFile(nsILocalFile *aFile)
{
NS_ENSURE_ARG(aFile);
nsAutoString path;
aFile->GetPath(path);
if (path.IsEmpty())
return NS_ERROR_INVALID_ARG;
return InitWithPath(path);
}
NS_IMETHODIMP
nsLocalFile::InitWithPath(const nsAString &filePath)
{
MakeDirty();
nsAString::const_iterator begin, end;
filePath.BeginReading(begin);
filePath.EndReading(end);
// input string must not be empty
if (begin == end)
return NS_ERROR_FAILURE;
PRUnichar firstChar = *begin;
PRUnichar 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.
PRUnichar *path = nsnull;
PRInt32 pathLen = 0;
if ( ( (secondChar == L':') && !FindCharInReadable(L'/', begin, end) ) || // normal path
#ifdef WINCE
( (firstChar == L'\\') ) // wince absolute path or network path
#else
( (firstChar == L'\\') && (secondChar == L'\\') ) // network path
#endif
)
{
// This is a native path
path = ToNewUnicode(filePath);
pathLen = filePath.Length();
}
if (path == nsnull) {
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
}
// kill any trailing '\'
PRInt32 len = pathLen - 1;
if (path[len] == L'\\')
{
path[len] = L'\0';
pathLen = len;
}
mWorkingPath.Adopt(path, pathLen);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::OpenNSPRFileDesc(PRInt32 flags, PRInt32 mode, PRFileDesc **_retval)
{
nsresult rv = ResolveAndStat();
if (NS_FAILED(rv) && rv != NS_ERROR_FILE_NOT_FOUND)
return rv;
return OpenFile(mResolvedPath, flags, mode, _retval);
}
NS_IMETHODIMP
nsLocalFile::OpenANSIFileDesc(const char *mode, FILE * *_retval)
{
nsresult rv = ResolveAndStat();
if (NS_FAILED(rv) && rv != NS_ERROR_FILE_NOT_FOUND)
return rv;
*_retval = nsWinAPIs::mFopen(mResolvedPath.get(),
NS_ConvertASCIItoUTF16(mode).get());
if (*_retval)
return NS_OK;
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsLocalFile::Create(PRUint32 type, PRUint32 attributes)
{
if (type != NORMAL_FILE_TYPE && type != 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.
PRUnichar* path = mResolvedPath.BeginWriting();
if (path[0] == L'\\' && path[1] == L'\\')
{
#ifdef WINCE
++path;
#else
// dealing with a UNC path here; skip past '\\machine\'
path = wcschr(path + 2, L'\\');
if (!path)
return NS_ERROR_FILE_INVALID_PATH;
++path;
#endif
}
// search for first slash after the drive (or volume) name
PRUnichar* slash = wcschr(path, L'\\');
if (slash)
{
// skip the first '\\'
++slash;
slash = wcschr(slash, L'\\');
while (slash)
{
*slash = L'\0';
if (!nsWinAPIs::mCreateDirectory(mResolvedPath.get(), NULL)) {
rv = ConvertWinError(GetLastError());
// 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.
if (rv != NS_ERROR_FILE_ALREADY_EXISTS &&
rv != NS_ERROR_FILE_ACCESS_DENIED)
return rv;
}
*slash = L'\\';
++slash;
slash = wcschr(slash, L'\\');
}
}
if (type == NORMAL_FILE_TYPE)
{
PRFileDesc* file;
OpenFile(mResolvedPath,
PR_RDONLY | PR_CREATE_FILE | PR_APPEND | PR_EXCL, attributes,
&file);
if (!file) return NS_ERROR_FILE_ALREADY_EXISTS;
PR_Close(file);
return NS_OK;
}
if (type == DIRECTORY_TYPE)
{
if (!nsWinAPIs::mCreateDirectory(mResolvedPath.get(), NULL))
return ConvertWinError(GetLastError());
else
return NS_OK;
}
return NS_ERROR_FILE_UNKNOWN_TYPE;
}
NS_IMETHODIMP
nsLocalFile::Append(const nsAString &node)
{
// append this path, multiple components are not permitted
return AppendInternal(PromiseFlatString(node), PR_FALSE);
}
NS_IMETHODIMP
nsLocalFile::AppendRelativePath(const nsAString &node)
{
// append this path, multiple components are permitted
return AppendInternal(PromiseFlatString(node), PR_TRUE);
}
nsresult
nsLocalFile::AppendInternal(const nsAFlatString &node, PRBool multipleComponents)
{
if (node.IsEmpty())
return NS_OK;
// check the relative path for validity
if (node.First() == L'\\' // can't start with an '\'
|| node.FindChar(L'/') != kNotFound // can't contain /
|| node.EqualsASCII("..")) // can't be ..
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
#ifndef WINCE // who cares?
if (multipleComponents)
{
// 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;
node.BeginReading(start);
node.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(node, NS_LITERAL_STRING("..\\")))
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
}
// single components can't contain '\'
else if (node.FindChar(L'\\') != kNotFound)
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
#endif
MakeDirty();
mWorkingPath.Append(NS_LITERAL_STRING("\\") + node);
return NS_OK;
}
#define TOUPPER(u) (((u) >= L'a' && (u) <= L'z') ? \
(u) - (L'a' - L'A') : (u))
NS_IMETHODIMP
nsLocalFile::Normalize()
{
#ifndef WINCE
// 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\").
PRInt32 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;
if (!nsWinAPIs::mGetDCwd(drive, pcwd, MAX_PATH))
pcwd = nsWinAPIs::mGetDCwd(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 < (PRInt32)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 == (PRInt32)path.Length())
return NS_OK;
// assign the root
const PRUnichar * 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.
PRInt32 len, begin, end = rootIdx;
while (end < (PRInt32)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)
{
PRInt32 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.
PRInt32 filePathLen = mWorkingPath.Length() - 1;
while(filePathLen > 0 && (mWorkingPath[filePathLen] == L' ' ||
mWorkingPath[filePathLen] == L'.'))
{
mWorkingPath.Truncate(filePathLen--);
}
MakeDirty();
#else // WINCE
// WINCE FIX
#endif
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetLeafName(nsAString &aLeafName)
{
aLeafName.Truncate();
if(mWorkingPath.IsEmpty())
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
PRInt32 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
PRInt32 offset = mWorkingPath.RFindChar(L'\\');
if (offset)
{
mWorkingPath.Truncate(offset+1);
}
mWorkingPath.Append(aLeafName);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetPath(nsAString &_retval)
{
_retval = 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& _retval)
{
nsresult rv = ResolveAndStat();
if (NS_FAILED(rv))
return rv;
rv = NS_ERROR_FAILURE;
// Cast away const-ness here because WinAPI functions don't understand it,
// the path is used for [in] parameters only however so it's safe.
WCHAR *path = NS_CONST_CAST(WCHAR*, mFollowSymlinks ? mResolvedPath.get()
: mWorkingPath.get());
// Per http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/winui/windowsuserinterface/resources/versioninformation/versioninformationreference/versioninformationfunctions/getfileversioninfosize.asp
// if the "short" version of this file name is > 125 characters,
// GetFileVersionInfoSize will not work (for Win9x compatibility)
WCHAR shortPath[126];
nsWinAPIs::mGetShortPathName(path, shortPath, sizeof(shortPath));
DWORD dummy;
DWORD size = nsWinAPIs::mGetFileVersionInfoSize(shortPath, &dummy);
if (!size)
return rv;
void* ver = calloc(size, 1);
if (!ver)
return NS_ERROR_OUT_OF_MEMORY;
if (nsWinAPIs::mGetFileVersionInfo(path, 0, size, ver))
{
LANGANDCODEPAGE* translate = nsnull;
UINT pageCount;
BOOL queryResult = ::VerQueryValue(ver, "\\VarFileInfo\\Translation",
(void**)&translate, &pageCount);
if (queryResult && translate)
{
for (PRInt32 i = 0; i < 2; ++i)
{
// XXX : need to make sure that we can get away with
// 'VerQueryValueA' here.
char subBlock[MAX_PATH];
PR_snprintf(subBlock, sizeof(subBlock),
"\\StringFileInfo\\%04x%04x\\%s",
(i == 0 ? translate[0].wLanguage
: ::GetUserDefaultLangID()),
translate[0].wCodePage, aField);
LPVOID value = nsnull;
UINT size;
queryResult = ::VerQueryValueA(ver, subBlock, &value, &size);
if (queryResult && value)
{
NS_ASSERTION(nsCRT::IsAscii((const char*) value),
"Version string has non-ASCII characters");
CopyASCIItoUTF16(nsDependentCString((const char*) value),
_retval);
if (!_retval.IsEmpty())
{
rv = NS_OK;
break;
}
}
}
}
}
free(ver);
return rv;
}
nsresult
nsLocalFile::CopySingleFile(nsIFile *sourceFile, nsIFile *destParent,
const nsAString &newName,
PRBool followSymlinks, PRBool move)
{
nsresult rv;
nsAutoString filePath;
// 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;
destParent->GetTarget(destPath);
destPath.AppendASCII("\\");
if (newName.IsEmpty())
{
nsAutoString aFileName;
sourceFile->GetLeafName(aFileName);
destPath.Append(aFileName);
}
else
{
destPath.Append(newName);
}
if (followSymlinks)
{
rv = sourceFile->GetTarget(filePath);
if (filePath.IsEmpty())
rv = sourceFile->GetPath(filePath);
}
else
{
rv = sourceFile->GetPath(filePath);
}
if (NS_FAILED(rv))
return rv;
int copyOK;
if (!move)
copyOK = nsWinAPIs::mCopyFile(filePath.get(), destPath.get(), PR_TRUE);
else
{
// What we have to do is check to see if the destPath exists. If it
// does, we have to move it out of the say so that MoveFile will
// succeed. However, we don't want to just remove it since MoveFile
// can fail leaving us without a file.
nsAutoString backup;
PRFileInfo64 fileInfo64;
if (NS_SUCCEEDED(GetFileInfo(destPath, &fileInfo64)))
{
// the file exists. Check to make sure it is not a directory,
// then move it out of the way.
if (fileInfo64.type == PR_FILE_FILE)
{
backup.Append(destPath);
backup.Append(L".moztmp");
// remove any existing backup file that we may already have.
// maybe we should be doing some kind of unique naming here,
// but why bother.
nsWinAPIs::mRemove(backup.get());
// move destination file to backup file
copyOK = nsWinAPIs::mMoveFile(destPath.get(), backup.get());
if (!copyOK)
{
// I guess we can't do the backup copy, so return.
rv = ConvertWinError(GetLastError());
return rv;
}
}
}
// move source file to destination file
copyOK = nsWinAPIs::mMoveFile(filePath.get(), destPath.get());
if (!backup.IsEmpty())
{
if (copyOK)
{
// remove the backup copy.
nsWinAPIs::mRemove(backup.get());
}
else
{
// restore backup
int backupOk = nsWinAPIs::mMoveFile(backup.get(),
destPath.get());
NS_ASSERTION(backupOk, "move backup failed");
}
}
}
if (!copyOK) // CopyFile and MoveFile returns non-zero if succeeds (backward if you ask me).
rv = ConvertWinError(GetLastError());
return rv;
}
nsresult
nsLocalFile::CopyMove(nsIFile *aParentDir, const nsAString &newName, PRBool followSymlinks, PRBool move)
{
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| parameter.
nsresult rv = ResolveAndStat();
if (NS_FAILED(rv))
return rv;
if (!newParentDir)
{
// no parent was specified. We must rename.
if (newName.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.
PRBool 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
{
PRBool isDir;
newParentDir->IsDirectory(&isDir);
if (isDir == PR_FALSE)
{
if (followSymlinks)
{
PRBool isLink;
newParentDir->IsSymlink(&isLink);
if (isLink)
{
nsAutoString target;
newParentDir->GetTarget(target);
nsCOMPtr<nsILocalFile> realDest = new nsLocalFile();
if (realDest == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
rv = realDest->InitWithPath(target);
if (NS_FAILED(rv))
return rv;
return CopyMove(realDest, newName, followSymlinks, move);
}
}
else
{
return NS_ERROR_FILE_DESTINATION_NOT_DIR;
}
}
}
// Try different ways to move/copy files/directories
PRBool done = PR_FALSE;
PRBool isDir;
IsDirectory(&isDir);
PRBool 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
rv = CopySingleFile(this, newParentDir, newName, followSymlinks, move);
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 (newName.IsEmpty())
{
PRBool isLink;
IsSymlink(&isLink);
if (isLink)
{
nsAutoString temp;
GetTarget(temp);
PRInt32 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 = newName;
}
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
PRBool isWritable;
target->IsWritable(&isWritable);
if (!isWritable)
return NS_ERROR_FILE_ACCESS_DENIED;
nsCOMPtr<nsISimpleEnumerator> targetIterator;
rv = target->GetDirectoryEntries(getter_AddRefs(targetIterator));
PRBool more;
targetIterator->HasMoreElements(&more);
// return error if target directory is not empty
if (more)
return NS_ERROR_FILE_DIR_NOT_EMPTY;
}
nsDirEnumerator dirEnum;
rv = dirEnum.Init(this);
if (NS_FAILED(rv)) {
NS_WARNING("dirEnum initialization failed");
return rv;
}
PRBool more;
while (NS_SUCCEEDED(dirEnum.HasMoreElements(&more)) && more)
{
nsCOMPtr<nsISupports> item;
nsCOMPtr<nsIFile> file;
dirEnum.GetNext(getter_AddRefs(item));
file = do_QueryInterface(item);
if (file)
{
PRBool isDir, isLink;
file->IsDirectory(&isDir);
file->IsSymlink(&isLink);
if (move)
{
if (followSymlinks)
return NS_ERROR_FAILURE;
rv = file->MoveTo(target, EmptyString());
NS_ENSURE_SUCCESS(rv,rv);
}
else
{
if (followSymlinks)
rv = file->CopyToFollowingLinks(target, EmptyString());
else
rv = file->CopyTo(target, EmptyString());
NS_ENSURE_SUCCESS(rv,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(PR_FALSE /* recursive */);
NS_ENSURE_SUCCESS(rv,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 (newName.IsEmpty())
{
nsAutoString aFileName;
GetLeafName(aFileName);
InitWithPath(newParentPath);
Append(aFileName);
}
else
{
InitWithPath(newParentPath);
Append(newName);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::CopyTo(nsIFile *newParentDir, const nsAString &newName)
{
return CopyMove(newParentDir, newName, PR_FALSE, PR_FALSE);
}
NS_IMETHODIMP
nsLocalFile::CopyToFollowingLinks(nsIFile *newParentDir, const nsAString &newName)
{
return CopyMove(newParentDir, newName, PR_TRUE, PR_FALSE);
}
NS_IMETHODIMP
nsLocalFile::MoveTo(nsIFile *newParentDir, const nsAString &newName)
{
return CopyMove(newParentDir, newName, PR_FALSE, PR_TRUE);
}
NS_IMETHODIMP
nsLocalFile::Load(PRLibrary * *_retval)
{
PRBool isFile;
nsresult rv = IsFile(&isFile);
if (NS_FAILED(rv))
return rv;
if (! isFile)
return NS_ERROR_FILE_IS_DIRECTORY;
NS_TIMELINE_START_TIMER("PR_LoadLibraryWithFlags");
PRLibSpec libSpec;
libSpec.value.pathname_u = mResolvedPath.get();
libSpec.type = PR_LibSpec_PathnameU;
*_retval = PR_LoadLibraryWithFlags(libSpec, 0);
NS_TIMELINE_STOP_TIMER("PR_LoadLibraryWithFlags");
NS_TIMELINE_MARK_TIMER1("PR_LoadLibraryWithFlags",
NS_ConvertUTF16toUTF8(mResolvedPath).get());
if (*_retval)
return NS_OK;
return NS_ERROR_NULL_POINTER;
}
NS_IMETHODIMP
nsLocalFile::Remove(PRBool recursive)
{
// 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.
PRBool isDir, isLink;
nsresult rv;
isDir = PR_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 (recursive)
{
nsDirEnumerator dirEnum;
rv = dirEnum.Init(this);
if (NS_FAILED(rv))
return rv;
PRBool more;
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(recursive);
}
}
rv = nsWinAPIs::mRmdir(mWorkingPath.get());
}
else
{
rv = nsWinAPIs::mRemove(mWorkingPath.get());
}
// fixup error code if necessary...
if (rv == (nsresult)-1)
rv = NSRESULT_FOR_ERRNO();
MakeDirty();
return rv;
}
NS_IMETHODIMP
nsLocalFile::GetLastModifiedTime(PRInt64 *aLastModifiedTime)
{
NS_ENSURE_ARG(aLastModifiedTime);
// get the modified time of the target as determined by mFollowSymlinks
// If PR_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
PRInt64 usecPerMsec;
LL_I2L(usecPerMsec, PR_USEC_PER_MSEC);
LL_DIV(*aLastModifiedTime, mFileInfo64.modifyTime, usecPerMsec);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetLastModifiedTimeOfLink(PRInt64 *aLastModifiedTime)
{
NS_ENSURE_ARG(aLastModifiedTime);
// 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
PRInt64 usecPerMsec;
LL_I2L(usecPerMsec, PR_USEC_PER_MSEC);
LL_DIV(*aLastModifiedTime, info.modifyTime, usecPerMsec);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::SetLastModifiedTime(PRInt64 aLastModifiedTime)
{
nsresult rv = ResolveAndStat();
if (NS_FAILED(rv))
return rv;
// set the modified time of the target as determined by mFollowSymlinks
// If PR_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(PRInt64 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(PRInt64 aLastModifiedTime, const PRUnichar *filePath)
{
HANDLE file = nsWinAPIs::mCreateFile(filePath, // pointer to name of the file
GENERIC_WRITE, // access (write) mode
0, // share mode
NULL, // pointer to security attributes
OPEN_EXISTING, // how to create
0, // file attributes
NULL);
if (file == INVALID_HANDLE_VALUE)
{
return ConvertWinError(GetLastError());
}
FILETIME lft, ft;
SYSTEMTIME st;
PRExplodedTime pret;
// PR_ExplodeTime expects usecs...
PR_ExplodeTime(aLastModifiedTime * PR_USEC_PER_MSEC, PR_LocalTimeParameters, &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 ( 0 != SystemTimeToFileTime(&st, &lft)
|| 0 != LocalFileTimeToFileTime(&lft, &ft)
|| 0 != SetFileTime(file, NULL, &ft, &ft) )
{
rv = ConvertWinError(GetLastError());
}
CloseHandle(file);
return rv;
}
NS_IMETHODIMP
nsLocalFile::GetPermissions(PRUint32 *aPermissions)
{
NS_ENSURE_ARG(aPermissions);
// get the permissions of the target as determined by mFollowSymlinks
// If PR_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;
PRBool 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(PRUint32 *aPermissions)
{
NS_ENSURE_ARG(aPermissions);
// 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 = nsWinAPIs::mGetFileAttributes(mWorkingPath.get());
if (word == INVALID_FILE_ATTRIBUTES)
return NS_ERROR_FILE_INVALID_PATH;
PRBool 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(PRUint32 aPermissions)
{
// set the permissions of the target as determined by mFollowSymlinks
// If PR_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 (nsWinAPIs::mChmod(mResolvedPath.get(), mode) == -1)
return NS_ERROR_FAILURE;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::SetPermissionsOfLink(PRUint32 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 (nsWinAPIs::mChmod(mWorkingPath.get(), mode) == -1)
return NS_ERROR_FAILURE;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetFileSize(PRInt64 *aFileSize)
{
NS_ENSURE_ARG(aFileSize);
nsresult rv = ResolveAndStat();
if (NS_FAILED(rv))
return rv;
*aFileSize = mFileInfo64.size;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetFileSizeOfLink(PRInt64 *aFileSize)
{
NS_ENSURE_ARG(aFileSize);
// 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(PRInt64 aFileSize)
{
nsresult rv = ResolveAndStat();
if (NS_FAILED(rv))
return rv;
HANDLE hFile = nsWinAPIs::mCreateFile(mResolvedPath.get(), // pointer to name of the file
GENERIC_WRITE, // access (write) mode
FILE_SHARE_READ, // share mode
NULL, // pointer to security attributes
OPEN_EXISTING, // how to create
FILE_ATTRIBUTE_NORMAL, // file attributes
NULL);
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(PRInt64 *aDiskSpaceAvailable)
{
#ifndef WINCE
NS_ENSURE_ARG(aDiskSpaceAvailable);
ResolveAndStat();
ULARGE_INTEGER liFreeBytesAvailableToCaller, liTotalNumberOfBytes;
if (nsWinAPIs::mGetDiskFreeSpaceEx(mResolvedPath.get(),
&liFreeBytesAvailableToCaller,
&liTotalNumberOfBytes,
NULL))
{
*aDiskSpaceAvailable = liFreeBytesAvailableToCaller.QuadPart;
return NS_OK;
}
// use the old method of getting available disk space
WCHAR aDrive[_MAX_DRIVE + 2];
_wsplitpath( mResolvedPath.get(), aDrive, NULL, NULL, NULL);
wcscat(aDrive, L"\\");
DWORD dwSecPerClus, dwBytesPerSec, dwFreeClus, dwTotalClus;
if (nsWinAPIs::mGetDiskFreeSpace(aDrive, &dwSecPerClus, &dwBytesPerSec,
&dwFreeClus, &dwTotalClus))
{
__int64 bytes = dwFreeClus;
bytes *= dwSecPerClus;
bytes *= dwBytesPerSec;
*aDiskSpaceAvailable = bytes;
return NS_OK;
}
#endif
// WINCE FIX
*aDiskSpaceAvailable = 0;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetParent(nsIFile * *aParent)
{
NS_ENSURE_ARG_POINTER(aParent);
nsAutoString parentPath(mWorkingPath);
PRInt32 offset = parentPath.RFindChar(PRUnichar('\\'));
// 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;
if (offset == 1 && parentPath[0] == L'\\') {
*aParent = nsnull;
return NS_OK;
}
if (offset > 0)
parentPath.Truncate(offset);
else
parentPath.AssignLiteral("\\\\.");
nsCOMPtr<nsILocalFile> localFile;
nsresult rv = NS_NewLocalFile(parentPath, mFollowSymlinks, getter_AddRefs(localFile));
if(NS_SUCCEEDED(rv) && localFile)
{
return CallQueryInterface(localFile, aParent);
}
return rv;
}
NS_IMETHODIMP
nsLocalFile::Exists(PRBool *_retval)
{
NS_ENSURE_ARG(_retval);
*_retval = PR_FALSE;
MakeDirty();
nsresult rv = ResolveAndStat();
*_retval = NS_SUCCEEDED(rv);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsWritable(PRBool *aIsWritable)
{
//TODO: extend to support NTFS file permissions
// 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 (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 (NS_FAILED(rv))
return rv;
*aIsWritable = !*aIsWritable;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsReadable(PRBool *_retval)
{
NS_ENSURE_ARG(_retval);
*_retval = PR_FALSE;
nsresult rv = ResolveAndStat();
if (NS_FAILED(rv))
return rv;
*_retval = PR_TRUE;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsExecutable(PRBool *_retval)
{
NS_ENSURE_ARG(_retval);
*_retval = PR_FALSE;
nsresult rv;
// only files can be executables
PRBool isFile;
rv = IsFile(&isFile);
if (NS_FAILED(rv))
return rv;
if (!isFile)
return NS_OK;
//TODO: shouldn't we be checking mFollowSymlinks here?
PRBool symLink;
rv = IsSymlink(&symLink);
if (NS_FAILED(rv))
return rv;
nsAutoString path;
if (symLink)
GetTarget(path);
else
GetPath(path);
// kill trailing dots and spaces.
PRInt32 filePathLen = path.Length() - 1;
while(filePathLen > 0 && (path[filePathLen] == L' ' || path[filePathLen] == L'.'))
{
path.Truncate(filePathLen--);
}
// Get extension.
PRInt32 dotIdx = path.RFindChar(PRUnichar('.'));
if ( dotIdx != kNotFound ) {
// Convert extension to lower case.
PRUnichar *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.
const char * const executableExts[] = {
"ad",
"adp",
"asp",
"bas",
"bat",
"chm",
"cmd",
"com",
"cpl",
"crt",
"exe",
"hlp",
"hta",
"inf",
"ins",
"isp",
"js",
"jse",
"lnk",
"mdb",
"mde",
"msc",
"msi",
"msp",
"mst",
"pcd",
"pif",
"reg",
"scr",
"sct",
"shb",
"shs",
"url",
"vb",
"vbe",
"vbs",
"vsd",
"vss",
"vst",
"vsw",
"ws",
"wsc",
"wsf",
"wsh",
0 };
for ( int i = 0; executableExts[i]; i++ ) {
if ( Substring(path, dotIdx + 1).EqualsASCII(executableExts[i])) {
// Found a match. Set result and quit.
*_retval = PR_TRUE;
break;
}
}
}
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsDirectory(PRBool *_retval)
{
NS_ENSURE_ARG(_retval);
nsresult rv = ResolveAndStat();
if (NS_FAILED(rv))
return rv;
*_retval = (mFileInfo64.type == PR_FILE_DIRECTORY);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsFile(PRBool *_retval)
{
NS_ENSURE_ARG(_retval);
nsresult rv = ResolveAndStat();
if (NS_FAILED(rv))
return rv;
*_retval = (mFileInfo64.type == PR_FILE_FILE);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsHidden(PRBool *_retval)
{
return HasFileAttribute(FILE_ATTRIBUTE_HIDDEN, _retval);
}
nsresult
nsLocalFile::HasFileAttribute(DWORD fileAttrib, PRBool *_retval)
{
NS_ENSURE_ARG(_retval);
nsresult rv = ResolveAndStat();
if (NS_FAILED(rv))
return rv;
// get the file attributes for the correct item depending on following symlinks
const PRUnichar *filePath = mFollowSymlinks ?
mResolvedPath.get() : mWorkingPath.get();
DWORD word = nsWinAPIs::mGetFileAttributes(filePath);
*_retval = ((word & fileAttrib) != 0);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsSymlink(PRBool *_retval)
{
NS_ENSURE_ARG(_retval);
// unless it is a valid shortcut path it's not a symlink
if (!IsShortcutPath(mWorkingPath))
{
*_retval = PR_FALSE;
return NS_OK;
}
// we need to know if this is a file or directory
nsresult rv = ResolveAndStat();
if (NS_FAILED(rv))
return rv;
// it's only a shortcut if it is a file
*_retval = (mFileInfo64.type == PR_FILE_FILE);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsSpecial(PRBool *_retval)
{
return HasFileAttribute(FILE_ATTRIBUTE_SYSTEM, _retval);
}
NS_IMETHODIMP
nsLocalFile::Equals(nsIFile *inFile, PRBool *_retval)
{
NS_ENSURE_ARG(inFile);
NS_ENSURE_ARG(_retval);
EnsureShortPath();
nsCOMPtr<nsILocalFileWin> lf(do_QueryInterface(inFile));
if (!lf) {
*_retval = PR_FALSE;
return NS_OK;
}
nsAutoString inFilePath;
lf->GetCanonicalPath(inFilePath);
// Ok : Win9x
*_retval = _wcsicmp(mShortWorkingPath.get(), inFilePath.get()) == 0;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::Contains(nsIFile *inFile, PRBool recur, PRBool *_retval)
{
*_retval = PR_FALSE;
nsAutoString myFilePath;
if (NS_FAILED(GetTarget(myFilePath)))
GetPath(myFilePath);
PRUint32 myFilePathLen = myFilePath.Length();
nsAutoString inFilePath;
if (NS_FAILED(inFile->GetTarget(inFilePath)))
inFile->GetPath(inFilePath);
// make sure that the |inFile|'s path has a trailing separator.
if (inFilePath.Length() >= myFilePathLen && inFilePath[myFilePathLen] == L'\\')
{
if (_wcsnicmp(myFilePath.get(), inFilePath.get(), myFilePathLen) == 0)
{
*_retval = PR_TRUE;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetTarget(nsAString &_retval)
{
_retval.Truncate();
#if STRICT_FAKE_SYMLINKS
PRBool symLink;
nsresult rv = IsSymlink(&symLink);
if (NS_FAILED(rv))
return rv;
if (!symLink)
{
return NS_ERROR_FILE_INVALID_PATH;
}
#endif
ResolveAndStat();
_retval = mResolvedPath;
return NS_OK;
}
/* attribute PRBool followLinks; */
NS_IMETHODIMP
nsLocalFile::GetFollowLinks(PRBool *aFollowLinks)
{
*aFollowLinks = mFollowSymlinks;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::SetFollowLinks(PRBool aFollowLinks)
{
MakeDirty();
mFollowSymlinks = aFollowLinks;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetDirectoryEntries(nsISimpleEnumerator * *entries)
{
nsresult rv;
*entries = nsnull;
if (mWorkingPath.EqualsLiteral("\\\\.")) {
nsDriveEnumerator *drives = new nsDriveEnumerator;
if (!drives)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(drives);
rv = drives->Init();
if (NS_FAILED(rv)) {
NS_RELEASE(drives);
return rv;
}
*entries = drives;
return NS_OK;
}
PRBool isDir;
rv = IsDirectory(&isDir);
if (NS_FAILED(rv))
return rv;
if (!isDir)
return NS_ERROR_FILE_NOT_DIRECTORY;
nsDirEnumerator* dirEnum = new nsDirEnumerator();
if (dirEnum == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(dirEnum);
rv = dirEnum->Init(this);
if (NS_FAILED(rv))
{
NS_RELEASE(dirEnum);
return rv;
}
*entries = dirEnum;
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::Reveal()
{
#ifndef WINCE
// make sure mResolvedPath is set
nsresult rv = ResolveAndStat();
if (NS_FAILED(rv) && rv != NS_ERROR_FILE_NOT_FOUND)
return rv;
// use the full path to explorer for security
nsCOMPtr<nsILocalFile> winDir;
rv = GetSpecialSystemDirectory(Win_WindowsDirectory, getter_AddRefs(winDir));
NS_ENSURE_SUCCESS(rv, rv);
nsAutoString explorerPath;
rv = winDir->GetPath(explorerPath);
NS_ENSURE_SUCCESS(rv, rv);
explorerPath.Append(L"\\explorer.exe");
// Always open a new window for files because Win2K doesn't appear to select
// the file if a window showing that folder was already open. If the resolved
// path is a directory then instead of opening the parent and selecting it,
// we open the directory itself.
nsAutoString explorerParams;
if (mFileInfo64.type != PR_FILE_DIRECTORY) // valid because we ResolveAndStat above
explorerParams.Append(L"/n,/select,");
explorerParams.Append(L'\"');
explorerParams.Append(mResolvedPath);
explorerParams.Append(L'\"');
if (nsWinAPIs::mShellExecute(NULL, L"open", explorerPath.get(),
explorerParams.get(),
NULL, SW_SHOWNORMAL) <= (HINSTANCE) 32)
return NS_ERROR_FAILURE;
#endif
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::Launch()
{
const nsString &path = mWorkingPath;
// use the app registry name to launch a shell execute....
LONG r = (LONG) nsWinAPIs::mShellExecute( NULL, NULL, path.get(),
NULL, NULL, SW_SHOWNORMAL);
// if the file has no association, we launch windows' "what do you want to do" dialog
if (r == SE_ERR_NOASSOC) {
nsAutoString shellArg;
shellArg.Assign(NS_LITERAL_STRING("shell32.dll,OpenAs_RunDLL ") + path);
r = (LONG) nsWinAPIs::mShellExecute(NULL, NULL, L"RUNDLL32.EXE",
shellArg.get(),
NULL, SW_SHOWNORMAL);
}
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 &path, PRBool followLinks, nsILocalFile* *result)
{
nsLocalFile* file = new nsLocalFile();
if (file == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(file);
file->SetFollowLinks(followLinks);
if (!path.IsEmpty()) {
nsresult rv = file->InitWithPath(path);
if (NS_FAILED(rv)) {
NS_RELEASE(file);
return rv;
}
}
*result = file;
return NS_OK;
}
//-----------------------------------------------------------------------------
// Native (lossy) interface
//-----------------------------------------------------------------------------
NS_IMETHODIMP
nsLocalFile::InitWithNativePath(const nsACString &filePath)
{
nsAutoString tmp;
nsresult rv = NS_CopyNativeToUnicode(filePath, tmp);
if (NS_SUCCEEDED(rv))
return InitWithPath(tmp);
return rv;
}
NS_IMETHODIMP
nsLocalFile::AppendNative(const nsACString &node)
{
nsAutoString tmp;
nsresult rv = NS_CopyNativeToUnicode(node, tmp);
if (NS_SUCCEEDED(rv))
return Append(tmp);
return rv;
}
NS_IMETHODIMP
nsLocalFile::AppendRelativeNativePath(const nsACString &node)
{
nsAutoString tmp;
nsresult rv = NS_CopyNativeToUnicode(node, 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 &_retval)
{
//NS_WARNING("This API is lossy. Use GetPath !");
nsAutoString tmp;
nsresult rv = GetPath(tmp);
if (NS_SUCCEEDED(rv))
rv = NS_CopyUnicodeToNative(tmp, _retval);
return rv;
}
NS_IMETHODIMP
nsLocalFile::GetNativeCanonicalPath(nsACString &aResult)
{
NS_WARNING("This method is lossy. Use GetCanoincailPath !");
EnsureShortPath();
NS_CopyUnicodeToNative(mShortWorkingPath, aResult);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::CopyToNative(nsIFile *newParentDir, const nsACString &newName)
{
if (newName.IsEmpty())
return CopyTo(newParentDir, EmptyString());
nsAutoString tmp;
nsresult rv = NS_CopyNativeToUnicode(newName, tmp);
if (NS_SUCCEEDED(rv))
return CopyTo(newParentDir, tmp);
return rv;
}
NS_IMETHODIMP
nsLocalFile::CopyToFollowingLinksNative(nsIFile *newParentDir, const nsACString &newName)
{
if (newName.IsEmpty())
return CopyToFollowingLinks(newParentDir, EmptyString());
nsAutoString tmp;
nsresult rv = NS_CopyNativeToUnicode(newName, tmp);
if (NS_SUCCEEDED(rv))
return CopyToFollowingLinks(newParentDir, tmp);
return rv;
}
NS_IMETHODIMP
nsLocalFile::MoveToNative(nsIFile *newParentDir, const nsACString &newName)
{
if (newName.IsEmpty())
return MoveTo(newParentDir, EmptyString());
nsAutoString tmp;
nsresult rv = NS_CopyNativeToUnicode(newName, tmp);
if (NS_SUCCEEDED(rv))
return MoveTo(newParentDir, tmp);
return rv;
}
NS_IMETHODIMP
nsLocalFile::GetNativeTarget(nsACString &_retval)
{
NS_WARNING("This API is lossy. Use GetTarget !");
nsAutoString tmp;
nsresult rv = GetTarget(tmp);
if (NS_SUCCEEDED(rv))
rv = NS_CopyUnicodeToNative(tmp, _retval);
return rv;
}
nsresult
NS_NewNativeLocalFile(const nsACString &path, PRBool followLinks, nsILocalFile* *result)
{
nsAutoString buf;
nsresult rv = NS_CopyNativeToUnicode(path, buf);
if (NS_FAILED(rv)) {
*result = nsnull;
return rv;
}
return NS_NewLocalFile(buf, followLinks, result);
}
void
nsLocalFile::EnsureShortPath()
{
if (!mShortWorkingPath.IsEmpty())
return;
WCHAR thisshort[MAX_PATH];
DWORD thisr = nsWinAPIs::
mGetShortPathName(mWorkingPath.get(), thisshort,
sizeof(thisshort));
if (thisr < sizeof(thisshort))
mShortWorkingPath.Assign(thisshort);
else
mShortWorkingPath.Assign(mWorkingPath);
}
// nsIHashable
NS_IMETHODIMP
nsLocalFile::Equals(nsIHashable* aOther, PRBool *aResult)
{
nsCOMPtr<nsIFile> otherfile(do_QueryInterface(aOther));
if (!otherfile) {
*aResult = PR_FALSE;
return NS_OK;
}
return Equals(otherfile, aResult);
}
NS_IMETHODIMP
nsLocalFile::GetHashCode(PRUint32 *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()
{
#ifndef WINCE
nsresult rv = NS_CreateShortcutResolver();
NS_ASSERTION(NS_SUCCEEDED(rv), "Shortcut resolver could not be created");
#endif
}
void
nsLocalFile::GlobalShutdown()
{
#ifndef WINCE
NS_DestroyShortcutResolver();
#endif
}
NS_IMPL_ISUPPORTS1(nsDriveEnumerator, nsISimpleEnumerator)
nsDriveEnumerator::nsDriveEnumerator()
: mLetter(0)
{
}
nsDriveEnumerator::~nsDriveEnumerator()
{
}
nsresult nsDriveEnumerator::Init()
{
#ifdef WINCE
return NS_OK;
#else
/* 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 = GetLogicalDriveStrings(0, 0);
/* The string is null terminated */
mDrives.SetLength(length+1);
if (!GetLogicalDriveStrings(length, mDrives.BeginWriting()))
return NS_ERROR_FAILURE;
mLetter = mDrives.get();
return NS_OK;
#endif
}
NS_IMETHODIMP nsDriveEnumerator::HasMoreElements(PRBool *aHasMore)
{
#ifdef WINCE
*aHasMore = FALSE;
#else
*aHasMore = *mLetter != '\0';
#endif
return NS_OK;
}
NS_IMETHODIMP nsDriveEnumerator::GetNext(nsISupports **aNext)
{
#ifdef WINCE
nsILocalFile *file;
nsresult rv = NS_NewLocalFile(NS_LITERAL_STRING("\\"), PR_FALSE, &file);
*aNext = file;
#else
/* GetLogicalDrives stored in mLetter is a concatenation
* of null terminated strings, followed by a null terminator. */
if (!*mLetter) {
*aNext = nsnull;
return NS_OK;
}
NS_ConvertASCIItoUTF16 drive(mLetter);
mLetter += drive.Length() + 1;
nsILocalFile *file;
nsresult rv =
NS_NewLocalFile(drive, PR_FALSE, &file);
*aNext = file;
#endif
return rv;
}
Ссылка в новой задаче Показать git blame Копировать постоянную ссылку