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pjs/xpcom/io/nsLocalFileWin.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* The contents of this file are subject to the Netscape 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/NPL/
*
* 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 Netscape are
* Copyright (C) 1998-1999 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
* Doug Turner <dougt@netscape.com>
*/
#include "nsCOMPtr.h"
#include "nsMemory.h"
#include "nsLocalFileWin.h"
#include "nsNativeCharsetUtils.h"
#include "nsISimpleEnumerator.h"
#include "nsIComponentManager.h"
#include "prtypes.h"
#include "prio.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"
// _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
//----------------------------------------------------------------------------
// short cut resolver
//----------------------------------------------------------------------------
class ShortcutResolver
{
public:
ShortcutResolver();
virtual ~ShortcutResolver();
nsresult Init();
nsresult Resolve(const WCHAR* in, char* out);
private:
PRLock* mLock;
IPersistFile* mPersistFile;
IShellLink* mShellLink;
};
ShortcutResolver::ShortcutResolver()
{
mLock = nsnull;
mPersistFile = nsnull;
mShellLink = 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(mShellLink)
mShellLink->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 = CoCreateInstance(CLSID_ShellLink,
NULL,
CLSCTX_INPROC_SERVER,
IID_IShellLink,
(void**)&mShellLink);
if (SUCCEEDED(hres))
{
// Get a pointer to the IPersistFile interface.
hres = mShellLink->QueryInterface(IID_IPersistFile, (void**)&mPersistFile);
}
if (mPersistFile == nsnull || mShellLink == nsnull)
return NS_ERROR_FAILURE;
return NS_OK;
}
// |out| must be an allocated buffer of size MAX_PATH
nsresult
ShortcutResolver::Resolve(const WCHAR* in, char* 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->Resolve(nsnull, SLR_NO_UI );
if (FAILED(hres))
return NS_ERROR_FAILURE;
WIN32_FIND_DATA wfd;
// Get the path to the link target.
hres = mShellLink->GetPath( out, MAX_PATH, &wfd, SLGP_UNCPRIORITY );
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;
}
//-----------------------------------------------------------------------------
// 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 0:
rv = NS_OK;
default:
rv = NS_ERROR_FAILURE;
}
return rv;
}
static void
myLL_II2L(PRInt32 hi, PRInt32 lo, PRInt64 *result)
{
PRInt64 a64, b64; // probably could have been done with
// only one PRInt64, but these are macros,
// and I am a wimp.
// put hi in the low bits of a64.
LL_I2L(a64, hi);
// now shift it to the upperbit and place it the result in result
LL_SHL(b64, a64, 32);
// now put the low bits on by adding them to the result.
LL_ADD(*result, b64, lo);
}
static void
myLL_L2II(PRInt64 result, PRInt32 *hi, PRInt32 *lo )
{
PRInt64 a64, b64; // probably could have been done with
// only one PRInt64, but these are macros,
// and I am a wimp.
// shift the hi word to the low word, then push it into a long.
LL_SHR(a64, result, 32);
LL_L2I(*hi, a64);
// shift the low word to the hi word first, then shift it back.
LL_SHL(b64, result, 32);
LL_SHR(a64, b64, 32);
LL_L2I(*lo, a64);
}
static PRBool IsShortcut(const char* workingPath, int filePathLen)
{
// check to see if it is shortcut, i.e., it has ".lnk" in it
unsigned char* dest = _mbsstr((unsigned char*)workingPath,
(unsigned char*)".lnk");
if (!dest)
return PR_FALSE;
// find index of ".lnk"
int result = (int)(dest - (unsigned char*)workingPath);
// if ".lnk" is not at the leaf of this path, we need to make sure the
// next char after ".lnk" is a '\\'. e.g. "c:\\foo.lnk\\a.html" is valid,
// whereas "c:\\foo.lnkx" is not.
if (result + 4 < filePathLen)
{
if (workingPath[result + 4] != '\\')
return PR_FALSE;
}
return PR_TRUE;
}
//-----------------------------------------------------------------------------
// nsDirEnumerator
//-----------------------------------------------------------------------------
class nsDirEnumerator : public nsISimpleEnumerator
{
public:
NS_DECL_ISUPPORTS
nsDirEnumerator() : mDir(nsnull)
{
}
nsresult Init(nsILocalFile* parent)
{
nsCAutoString filepath;
parent->GetNativeTarget(filepath);
if (filepath.IsEmpty())
{
parent->GetNativePath(filepath);
}
if (filepath.IsEmpty())
{
return NS_ERROR_UNEXPECTED;
}
mDir = PR_OpenDir(filepath.get());
if (mDir == nsnull) // not a directory?
return NS_ERROR_FAILURE;
mParent = parent;
return NS_OK;
}
NS_IMETHOD HasMoreElements(PRBool *result)
{
nsresult rv;
if (mNext == nsnull && mDir)
{
PRDirEntry* entry = PR_ReadDir(mDir, PR_SKIP_BOTH);
if (entry == nsnull)
{
// end of dir entries
PRStatus status = PR_CloseDir(mDir);
if (status != PR_SUCCESS)
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->AppendNative(nsDependentCString(entry->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;
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;
}
virtual ~nsDirEnumerator()
{
if (mDir)
{
PRStatus status = PR_CloseDir(mDir);
NS_ASSERTION(status == PR_SUCCESS, "close failed");
}
}
protected:
PRDir* mDir;
nsCOMPtr<nsILocalFile> mParent;
nsCOMPtr<nsILocalFile> mNext;
};
NS_IMPL_ISUPPORTS1(nsDirEnumerator, nsISimpleEnumerator);
//-----------------------------------------------------------------------------
// nsLocalFile <public>
//-----------------------------------------------------------------------------
nsLocalFile::nsLocalFile()
{
mLastResolution = PR_FALSE;
mFollowSymlinks = PR_FALSE;
MakeDirty();
}
nsLocalFile::~nsLocalFile()
{
}
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_ISUPPORTS2(nsLocalFile, nsILocalFile, nsIFile)
//-----------------------------------------------------------------------------
// nsLocalFile <private>
//-----------------------------------------------------------------------------
// This function resets any cached information about the file.
void
nsLocalFile::MakeDirty()
{
mDirty = PR_TRUE;
}
// ResolvePath
// this function will walk the native path of |this| resolving any symbolic
// links found. The new resulting path will be placed into mResolvedPath.
nsresult
nsLocalFile::ResolvePath(const char* workingPath, PRBool resolveTerminal, char** resolvedPath)
{
nsresult rv = NS_OK;
PRBool isDir = PR_FALSE;
// check to see if it is shortcut, i.e., it has ".lnk" in it
int filePathLen = strlen(workingPath);
PRBool isShortcut = IsShortcut(workingPath, filePathLen);
if (!isShortcut)
return NS_ERROR_FILE_INVALID_PATH;
#ifdef DEBUG_dougt
printf("localfile - resolving symlink\n");
#endif
// Get the native path for |this|
// allocate extra bytes incase we need to append '\\' and '\0' to the
// workingPath, if it is just a drive letter and a colon
char *filePath = (char *) nsMemory::Alloc(filePathLen+2);
if (!filePath)
return NS_ERROR_NULL_POINTER;
memcpy(filePath, workingPath, filePathLen + 1);
// We are going to walk the native file path
// and stop at each slash. For each partial
// path (the string to the left of the slash)
// we will check to see if it is a shortcut.
// if it is, we will resolve it and continue
// with that resolved path.
// Get the first slash.
unsigned char* slash = _mbschr((unsigned char*) filePath, '\\');
if (slash == nsnull)
{
if (nsCRT::IsAsciiAlpha(filePath[0]) && filePath[1] == ':' && filePath[2] == '\0')
{
// we have a drive letter and a colon (eg 'c:'
// this is resolve already
filePath[filePathLen] = '\\';
filePath[filePathLen+1] = '\0';
*resolvedPath = filePath;
return NS_OK;
}
else
{
nsMemory::Free(filePath);
return NS_ERROR_FILE_INVALID_PATH;
}
}
// We really cant have just a drive letter as
// a shortcut, so we will skip the first '\\'
slash = _mbschr(++slash, '\\');
while (slash || resolveTerminal)
{
// Change the slash into a null so that
// we can use the partial path. It is is
// null, we know it is the terminal node.
if (slash)
{
*slash = '\0';
}
else if (resolveTerminal)
{
// this is our last time in this loop.
// set loop condition to false
resolveTerminal = PR_FALSE;
}
else
{
// something is wrong. we should not have
// both slash being null and resolveTerminal
// not set!
nsMemory::Free(filePath);
return NS_ERROR_NULL_POINTER;
}
// check to see the file is a shortcut by the magic .lnk extension.
size_t offset = strlen(filePath) - 4;
if ((offset > 0) && (strncmp( (filePath + offset), ".lnk", 4) == 0))
{
nsAutoString ucsBuf;
NS_CopyNativeToUnicode(nsDependentCString(filePath), ucsBuf);
char *temp = (char*) nsMemory::Alloc( MAX_PATH );
if (temp == nsnull)
{
nsMemory::Free(filePath);
return NS_ERROR_NULL_POINTER;
}
if (gResolver)
rv = gResolver->Resolve(ucsBuf.get(), temp);
else
rv = NS_ERROR_FAILURE;
if (NS_SUCCEEDED(rv))
{
// found a new path.
// addend a slash on it since it does not come out of GetPath()
// with one only if it is a directory. If it is not a directory
// and there is more to append, than we have a problem.
struct stat st;
int statrv = stat(temp, &st);
if (0 == statrv && (_S_IFDIR & st.st_mode))
{
strcat(temp, "\\");
isDir = PR_TRUE;
}
if (slash)
{
// save where we left off.
char *carot= (temp + strlen(temp) -1 );
// append all the stuff that we have not done.
_mbscat((unsigned char*)temp, ++slash);
slash = (unsigned char*)carot;
}
nsMemory::Free(filePath);
filePath = temp;
}
else
{
// could not resolve shortcut. Return error;
nsMemory::Free(filePath);
return NS_ERROR_FILE_INVALID_PATH;
}
}
if (slash)
{
*slash = '\\';
++slash;
slash = _mbschr(slash, '\\');
}
}
// kill any trailing separator
char* temp = filePath;
int len = strlen(temp) - 1;
if((temp[len] == '\\') && (!isDir))
temp[len] = '\0';
*resolvedPath = filePath;
return rv;
}
nsresult
nsLocalFile::ResolveAndStat(PRBool resolveTerminal)
{
if (!mDirty && mLastResolution == resolveTerminal)
{
return NS_OK;
}
mLastResolution = resolveTerminal;
mResolvedPath.Assign(mWorkingPath); //until we know better.
// First we will see if the workingPath exists. If it does, then we
// can simply use that as the resolved path. This simplification can
// be done on windows cause its symlinks (shortcuts) use the .lnk
// file extension.
char temp[4];
const char* workingFilePath = mWorkingPath.get();
const char* nsprPath = workingFilePath;
if (mWorkingPath.Length() == 2 && mWorkingPath.CharAt(1) == ':') {
temp[0] = workingFilePath[0];
temp[1] = workingFilePath[1];
temp[2] = '\\';
temp[3] = '\0';
nsprPath = temp;
}
PRStatus status = PR_GetFileInfo64(nsprPath, &mFileInfo64);
if ( status == PR_SUCCESS )
{
if (!resolveTerminal)
{
mDirty = PR_FALSE;
return NS_OK;
}
// check to see that this is shortcut, i.e., the leaf is ".lnk"
// if the length < 4, then it's not a link.
int pathLen = strlen(workingFilePath);
const char* leaf = workingFilePath + pathLen - 4;
// if we found the file and we are not following symlinks, then return success.
if (!mFollowSymlinks || pathLen < 4 || (strcmp(leaf, ".lnk") != 0))
{
mDirty = PR_FALSE;
return NS_OK;
}
}
if (!mFollowSymlinks)
return NS_ERROR_FILE_NOT_FOUND; // if we are not resolving, we just give up here.
nsresult result;
// okay, something is wrong with the working path. We will try to resolve it.
char *resolvePath;
result = ResolvePath(workingFilePath, resolveTerminal, &resolvePath);
if (NS_FAILED(result))
return NS_ERROR_FILE_NOT_FOUND;
mResolvedPath.Assign(resolvePath);
nsMemory::Free(resolvePath);
status = PR_GetFileInfo64(mResolvedPath.get(), &mFileInfo64);
if ( status == PR_SUCCESS )
mDirty = PR_FALSE;
else
result = NS_ERROR_FILE_NOT_FOUND;
return result;
}
//-----------------------------------------------------------------------------
// nsLocalFile::nsIFile,nsILocalFile
//-----------------------------------------------------------------------------
NS_IMETHODIMP
nsLocalFile::Clone(nsIFile **file)
{
NS_ENSURE_ARG(file);
*file = nsnull;
// Just copy-construct ourselves
nsLocalFile *localFile = new nsLocalFile(*this);
if (localFile == NULL)
return NS_ERROR_OUT_OF_MEMORY;
// don't forget to re-initialize mRefCnt
// or the new object will have the old refcnt
localFile->mRefCnt = 0;
*file = localFile;
NS_ADDREF(*file);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::InitWithNativePath(const nsACString &filePath)
{
MakeDirty();
nsACString::const_iterator begin, end;
filePath.BeginReading(begin);
filePath.EndReading(end);
// input string must not be empty
if (begin == end)
return NS_ERROR_FAILURE;
char firstChar = *begin;
char 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.
char *path = nsnull;
PRInt32 pathLen = 0;
if ( ( (secondChar == ':') && !FindCharInReadable('/', begin, end) ) || // normal path
( (firstChar == '\\') && (secondChar == '\\') ) ) // network path
{
// This is a native path
path = ToNewCString(filePath);
pathLen = filePath.Length();
}
if (path == nsnull)
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
// kill any trailing '\' provided it isn't the second char of DBCS
PRInt32 len = pathLen - 1;
if (path[len] == '\\' && (!::IsDBCSLeadByte(path[len-1]) ||
_mbsrchr((const unsigned char *)path, '\\') == (const unsigned char *)path+len))
{
path[len] = '\0';
pathLen = len;
}
mWorkingPath.Adopt(path, pathLen);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::OpenNSPRFileDesc(PRInt32 flags, PRInt32 mode, PRFileDesc **_retval)
{
// check to see if it is shortcut, i.e., it has ".lnk" in it
PRBool isShortcut = IsShortcut(mWorkingPath.get(), mWorkingPath.Length());
if (!isShortcut && mDirty)
{
// we will optimize here. If we are not a shortcut and we are opening
// a file and we are still dirty, assume that the working path is vaild
// and try to open it. The working path will be different from its
// resolved path for a shortcut file.
// If it does work, get the stat info via the file descriptor
mResolvedPath.Assign(mWorkingPath);
*_retval = PR_Open(mResolvedPath.get(), flags, mode);
if (*_retval)
{
PRStatus status = PR_GetOpenFileInfo64(*_retval, &mFileInfo64);
if (status == PR_SUCCESS)
{
mDirty = PR_FALSE;
mLastResolution = PR_TRUE;
}
else
NS_ERROR("FileInfo64 invalid while PR_Open succeeded.");
return NS_OK;
}
}
nsresult rv = ResolveAndStat(PR_TRUE);
if (NS_FAILED(rv) && rv != NS_ERROR_FILE_NOT_FOUND)
return rv;
*_retval = PR_Open(mResolvedPath.get(), flags, mode);
if (*_retval)
return NS_OK;
return NS_ErrorAccordingToNSPR();
}
NS_IMETHODIMP
nsLocalFile::OpenANSIFileDesc(const char *mode, FILE * *_retval)
{
nsresult rv = ResolveAndStat(PR_TRUE);
if (NS_FAILED(rv) && rv != NS_ERROR_FILE_NOT_FOUND)
return rv;
*_retval = fopen(mResolvedPath.get(), mode);
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(PR_FALSE);
if (NS_FAILED(rv) && rv != NS_ERROR_FILE_NOT_FOUND)
return rv;
// create nested directories to target
unsigned char* slash = _mbschr((const unsigned char*) mResolvedPath.get(), '\\');
if (slash)
{
// skip the first '\\'
++slash;
slash = _mbschr(slash, '\\');
while (slash)
{
*slash = '\0';
if (!CreateDirectoryA(mResolvedPath.get(), NULL)) {
rv = ConvertWinError(GetLastError());
if (rv != NS_ERROR_FILE_ALREADY_EXISTS) return rv;
}
*slash = '\\';
++slash;
slash = _mbschr(slash, '\\');
}
}
if (type == NORMAL_FILE_TYPE)
{
PRFileDesc* file = PR_Open(mResolvedPath.get(), PR_RDONLY | PR_CREATE_FILE | PR_APPEND | PR_EXCL, attributes);
if (!file) return NS_ERROR_FILE_ALREADY_EXISTS;
PR_Close(file);
return NS_OK;
}
if (type == DIRECTORY_TYPE)
{
if (!CreateDirectoryA(mResolvedPath.get(), NULL))
return ConvertWinError(GetLastError());
else
return NS_OK;
}
return NS_ERROR_FILE_UNKNOWN_TYPE;
}
NS_IMETHODIMP
nsLocalFile::AppendNative(const nsACString &node)
{
if (node.IsEmpty())
return NS_OK;
// Append only one component. Check for subdirs.
// XXX can we avoid the PromiseFlatCString call?
if (_mbschr((const unsigned char*) PromiseFlatCString(node).get(), '\\') != nsnull)
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
return AppendRelativeNativePath(node);
}
NS_IMETHODIMP
nsLocalFile::AppendRelativeNativePath(const nsACString &node)
{
// Cannot start with a / or have .. or have / anywhere
nsACString::const_iterator begin, end;
node.BeginReading(begin);
node.EndReading(end);
if (node.IsEmpty() || FindCharInReadable('/', begin, end))
{
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
}
MakeDirty();
mWorkingPath.Append(NS_LITERAL_CSTRING("\\") + node);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::Normalize()
{
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetNativeLeafName(nsACString &aLeafName)
{
aLeafName.Truncate();
const char* temp = mWorkingPath.get();
if(temp == nsnull)
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
const char* leaf = (const char*) _mbsrchr((const unsigned char*) temp, '\\');
// if the working path is just a node without any lashes.
if (leaf == nsnull)
leaf = temp;
else
leaf++;
aLeafName.Assign(leaf);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::SetNativeLeafName(const nsACString &aLeafName)
{
MakeDirty();
const unsigned char* temp = (const unsigned char*) mWorkingPath.get();
if(temp == nsnull)
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
// cannot use nsCString::RFindChar() due to 0x5c problem
PRInt32 offset = (PRInt32) (_mbsrchr(temp, '\\') - temp);
if (offset)
{
mWorkingPath.Truncate(offset+1);
}
mWorkingPath.Append(aLeafName);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetNativePath(nsACString &_retval)
{
_retval = mWorkingPath;
return NS_OK;
}
nsresult
nsLocalFile::CopySingleFile(nsIFile *sourceFile, nsIFile *destParent, const nsACString &newName, PRBool followSymlinks, PRBool move)
{
nsresult rv;
nsCAutoString filePath;
// get the path that we are going to copy to.
// Since windows does not know how to auto
// resolve shortcust, we must work with the
// target.
nsCAutoString destPath;
destParent->GetNativeTarget(destPath);
destPath.Append("\\");
if (newName.IsEmpty())
{
nsCAutoString aFileName;
sourceFile->GetNativeLeafName(aFileName);
destPath.Append(aFileName);
}
else
{
destPath.Append(newName);
}
if (followSymlinks)
{
rv = sourceFile->GetNativeTarget(filePath);
if (filePath.IsEmpty())
rv = sourceFile->GetNativePath(filePath);
}
else
{
rv = sourceFile->GetNativePath(filePath);
}
if (NS_FAILED(rv))
return rv;
int copyOK;
if (!move)
copyOK = CopyFile(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.
nsCAutoString backup;
PRFileInfo64 fileInfo64;
PRStatus status = PR_GetFileInfo64(destPath.get(), &fileInfo64);
if (status == PR_SUCCESS)
{
// 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(".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.
remove(backup.get());
// move destination file to backup file
copyOK = MoveFile(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 = MoveFile(filePath.get(), destPath.get());
if (!backup.IsEmpty())
{
if (copyOK)
{
// remove the backup copy.
(void) remove(backup.get());
}
else
{
// restore backup
int backupOk = MoveFile(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 nsACString &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(followSymlinks);
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)
{
nsCAutoString target;
newParentDir->GetNativeTarget(target);
nsCOMPtr<nsILocalFile> realDest = new nsLocalFile();
if (realDest == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
rv = realDest->InitWithNativePath(target);
if (NS_FAILED(rv))
return rv;
return CopyMove(realDest, newName, followSymlinks, move);
}
}
else
{
return NS_ERROR_FILE_DESTINATION_NOT_DIR;
}
}
}
// check to see if we are a directory, if so enumerate it.
PRBool isDir;
IsDirectory(&isDir);
PRBool isSymlink;
IsSymlink(&isSymlink);
if (!isDir || (isSymlink && !followSymlinks))
{
rv = CopySingleFile(this, newParentDir, newName, followSymlinks, move);
if (NS_FAILED(rv))
return rv;
}
else
{
// create a new target destination in the new parentDir;
nsCOMPtr<nsIFile> target;
rv = newParentDir->Clone(getter_AddRefs(target));
if (NS_FAILED(rv))
return rv;
nsCAutoString allocatedNewName;
if (newName.IsEmpty())
{
PRBool isLink;
IsSymlink(&isLink);
if (isLink)
{
nsCAutoString temp;
GetNativeTarget(temp);
const char* leaf = (const char*) _mbsrchr((const unsigned char*) temp.get(), '\\');
if (leaf[0] == '\\')
leaf++;
allocatedNewName = leaf;
}
else
{
GetNativeLeafName(allocatedNewName);// this should be the leaf name of the
}
}
else
{
allocatedNewName = newName;
}
rv = target->AppendNative(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 = new nsDirEnumerator();
if (!dirEnum)
return NS_ERROR_OUT_OF_MEMORY;
rv = dirEnum->Init(this);
if (NS_FAILED(rv)) {
NS_WARNING("dirEnum initalization failed");
return rv;
}
nsCOMPtr<nsISimpleEnumerator> iterator = do_QueryInterface(dirEnum);
PRBool more;
iterator->HasMoreElements(&more);
while (more)
{
nsCOMPtr<nsISupports> item;
nsCOMPtr<nsIFile> file;
iterator->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->MoveToNative(target, nsCString());
NS_ENSURE_SUCCESS(rv,rv);
}
else
{
if (followSymlinks)
rv = file->CopyToFollowingLinksNative(target, nsCString());
else
rv = file->CopyToNative(target, nsCString());
NS_ENSURE_SUCCESS(rv,rv);
}
}
iterator->HasMoreElements(&more);
}
// 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();
nsCAutoString newParentPath;
newParentDir->GetNativePath(newParentPath);
if (newParentPath.IsEmpty())
return NS_ERROR_FAILURE;
if (newName.IsEmpty())
{
nsCAutoString aFileName;
GetNativeLeafName(aFileName);
InitWithNativePath(newParentPath);
AppendNative(aFileName);
}
else
{
InitWithNativePath(newParentPath);
AppendNative(newName);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::CopyToNative(nsIFile *newParentDir, const nsACString &newName)
{
return CopyMove(newParentDir, newName, PR_FALSE, PR_FALSE);
}
NS_IMETHODIMP
nsLocalFile::CopyToFollowingLinksNative(nsIFile *newParentDir, const nsACString &newName)
{
return CopyMove(newParentDir, newName, PR_TRUE, PR_FALSE);
}
NS_IMETHODIMP
nsLocalFile::MoveToNative(nsIFile *newParentDir, const nsACString &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_LoadLibrary");
*_retval = PR_LoadLibrary(mResolvedPath.get());
NS_TIMELINE_STOP_TIMER("PR_LoadLibrary");
NS_TIMELINE_MARK_TIMER1("PR_LoadLibrary", mResolvedPath.get());
if (*_retval)
return NS_OK;
return NS_ERROR_NULL_POINTER;
}
NS_IMETHODIMP
nsLocalFile::Remove(PRBool recursive)
{
PRBool isDir;
nsresult rv = IsDirectory(&isDir);
if (NS_FAILED(rv))
return rv;
const char *filePath = mResolvedPath.get();
if (isDir)
{
if (recursive)
{
nsDirEnumerator* dirEnum = new nsDirEnumerator();
if (dirEnum == nsnull)
return NS_ERROR_OUT_OF_MEMORY;
rv = dirEnum->Init(this);
nsCOMPtr<nsISimpleEnumerator> iterator = do_QueryInterface(dirEnum);
PRBool more;
iterator->HasMoreElements(&more);
while (more)
{
nsCOMPtr<nsISupports> item;
nsCOMPtr<nsIFile> file;
iterator->GetNext(getter_AddRefs(item));
file = do_QueryInterface(item);
if (file)
file->Remove(recursive);
iterator->HasMoreElements(&more);
}
}
rv = rmdir(filePath); // todo: save return value?
}
else
{
rv = remove(filePath); // todo: save return value?
}
MakeDirty();
return rv;
}
NS_IMETHODIMP
nsLocalFile::GetLastModifiedTime(PRInt64 *aLastModifiedTime)
{
NS_ENSURE_ARG(aLastModifiedTime);
*aLastModifiedTime = 0;
nsresult rv = ResolveAndStat(PR_TRUE);
if (NS_FAILED(rv))
return rv;
// microseconds -> milliseconds
*aLastModifiedTime = mFileInfo64.modifyTime / PR_USEC_PER_MSEC;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetLastModifiedTimeOfLink(PRInt64 *aLastModifiedTime)
{
NS_ENSURE_ARG(aLastModifiedTime);
*aLastModifiedTime = 0;
nsresult rv = ResolveAndStat(PR_FALSE);
if (NS_FAILED(rv))
return rv;
// microseconds -> milliseconds
*aLastModifiedTime = mFileInfo64.modifyTime / PR_USEC_PER_MSEC;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::SetLastModifiedTime(PRInt64 aLastModifiedTime)
{
return nsLocalFile::SetModDate(aLastModifiedTime, PR_TRUE);
}
NS_IMETHODIMP
nsLocalFile::SetLastModifiedTimeOfLink(PRInt64 aLastModifiedTime)
{
return nsLocalFile::SetModDate(aLastModifiedTime, PR_FALSE);
}
nsresult
nsLocalFile::SetModDate(PRInt64 aLastModifiedTime, PRBool resolveTerminal)
{
nsresult rv = ResolveAndStat(resolveTerminal);
if (NS_FAILED(rv))
return rv;
const char *filePath = mResolvedPath.get();
HANDLE file = CreateFile( 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);
MakeDirty();
if (!file)
{
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;
if ( 0 == SystemTimeToFileTime(&st, &lft) )
{
rv = ConvertWinError(GetLastError());
}
else if ( 0 == LocalFileTimeToFileTime(&lft, &ft) )
{
rv = ConvertWinError(GetLastError());
}
else if ( 0 == SetFileTime(file, NULL, &ft, &ft) )
{
// could not set time
rv = ConvertWinError(GetLastError());
}
CloseHandle( file );
return rv;
}
NS_IMETHODIMP
nsLocalFile::GetPermissions(PRUint32 *aPermissions)
{
nsresult rv = ResolveAndStat(PR_TRUE);
if (NS_FAILED(rv))
return rv;
const char *filePath = mResolvedPath.get();
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetPermissionsOfLink(PRUint32 *aPermissionsOfLink)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsLocalFile::SetPermissions(PRUint32 aPermissions)
{
nsresult rv = ResolveAndStat(PR_TRUE);
if (NS_FAILED(rv))
return rv;
const char *filePath = mResolvedPath.get();
if( chmod(filePath, aPermissions) == -1 )
return NS_ERROR_FAILURE;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::SetPermissionsOfLink(PRUint32 aPermissions)
{
nsresult rv = ResolveAndStat(PR_FALSE);
if (NS_FAILED(rv))
return rv;
const char *filePath = mResolvedPath.get();
if( chmod(filePath, aPermissions) == -1 )
return NS_ERROR_FAILURE;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetFileSize(PRInt64 *aFileSize)
{
NS_ENSURE_ARG(aFileSize);
*aFileSize = 0;
nsresult rv = ResolveAndStat(PR_TRUE);
if (NS_FAILED(rv))
return rv;
*aFileSize = mFileInfo64.size;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::SetFileSize(PRInt64 aFileSize)
{
DWORD status;
HANDLE hFile;
nsresult rv = ResolveAndStat(PR_TRUE);
if (NS_FAILED(rv))
return rv;
const char *filePath = mResolvedPath.get();
// Leave it to Microsoft to open an existing file with a function
// named "CreateFile".
hFile = CreateFile(filePath,
GENERIC_WRITE,
FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL);
if (hFile == INVALID_HANDLE_VALUE)
{
MakeDirty();
return NS_ERROR_FAILURE;
}
// Seek to new, desired end of file
PRInt32 hi, lo;
myLL_L2II(aFileSize, &hi, &lo );
status = SetFilePointer(hFile, lo, NULL, FILE_BEGIN);
if (status == 0xffffffff)
goto error;
// Truncate file at current cursor position
if (!SetEndOfFile(hFile))
goto error;
if (!CloseHandle(hFile))
return NS_ERROR_FAILURE;
MakeDirty();
return NS_OK;
error:
MakeDirty();
CloseHandle(hFile);
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsLocalFile::GetFileSizeOfLink(PRInt64 *aFileSize)
{
NS_ENSURE_ARG(aFileSize);
*aFileSize = 0;
nsresult rv = ResolveAndStat(PR_FALSE);
if (NS_FAILED(rv))
return rv;
*aFileSize = mFileInfo64.size;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetDiskSpaceAvailable(PRInt64 *aDiskSpaceAvailable)
{
NS_ENSURE_ARG(aDiskSpaceAvailable);
ResolveAndStat(PR_FALSE);
PRInt64 int64;
LL_I2L(int64 , LONG_MAX);
// Check disk space
DWORD dwSecPerClus, dwBytesPerSec, dwFreeClus, dwTotalClus;
ULARGE_INTEGER liFreeBytesAvailableToCaller, liTotalNumberOfBytes, liTotalNumberOfFreeBytes;
double nBytes = 0;
BOOL (WINAPI* getDiskFreeSpaceExA)(LPCTSTR lpDirectoryName,
PULARGE_INTEGER lpFreeBytesAvailableToCaller,
PULARGE_INTEGER lpTotalNumberOfBytes,
PULARGE_INTEGER lpTotalNumberOfFreeBytes) = NULL;
HINSTANCE hInst = LoadLibrary("KERNEL32.DLL");
NS_ASSERTION(hInst != NULL, "COULD NOT LOAD KERNEL32.DLL");
if (hInst != NULL)
{
getDiskFreeSpaceExA = (BOOL (WINAPI*)(LPCTSTR lpDirectoryName,
PULARGE_INTEGER lpFreeBytesAvailableToCaller,
PULARGE_INTEGER lpTotalNumberOfBytes,
PULARGE_INTEGER lpTotalNumberOfFreeBytes))
GetProcAddress(hInst, "GetDiskFreeSpaceExA");
FreeLibrary(hInst);
}
if (getDiskFreeSpaceExA && (*getDiskFreeSpaceExA)(mResolvedPath.get(),
&liFreeBytesAvailableToCaller,
&liTotalNumberOfBytes,
&liTotalNumberOfFreeBytes))
{
nBytes = (double)(signed __int64)liFreeBytesAvailableToCaller.QuadPart;
}
else {
char aDrive[_MAX_DRIVE + 2];
_splitpath( mResolvedPath.get(), aDrive, NULL, NULL, NULL);
strcat(aDrive, "\\");
if ( GetDiskFreeSpace(aDrive, &dwSecPerClus, &dwBytesPerSec, &dwFreeClus, &dwTotalClus))
{
nBytes = (double)dwFreeClus*(double)dwSecPerClus*(double) dwBytesPerSec;
}
}
LL_D2L(*aDiskSpaceAvailable, nBytes);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetParent(nsIFile * *aParent)
{
NS_ENSURE_ARG_POINTER(aParent);
nsCAutoString parentPath(mWorkingPath);
// cannot use nsCString::RFindChar() due to 0x5c problem
PRInt32 offset = (PRInt32) (_mbsrchr((const unsigned char *) parentPath.get(), '\\')
- (const unsigned char *) parentPath.get());
if (offset < 0)
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
parentPath.Truncate(offset);
nsCOMPtr<nsILocalFile> localFile;
nsresult rv = NS_NewNativeLocalFile(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);
MakeDirty();
nsresult rv = ResolveAndStat( PR_TRUE );
if (NS_SUCCEEDED(rv))
*_retval = PR_TRUE;
else
*_retval = PR_FALSE;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsWritable(PRBool *_retval)
{
NS_ENSURE_ARG(_retval);
*_retval = PR_FALSE;
nsresult rv = ResolveAndStat(PR_TRUE);
if (NS_FAILED(rv))
return rv;
const char *workingFilePath = mWorkingPath.get();
DWORD word = GetFileAttributes(workingFilePath);
*_retval = !((word & FILE_ATTRIBUTE_READONLY) != 0);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsReadable(PRBool *_retval)
{
NS_ENSURE_ARG(_retval);
*_retval = PR_FALSE;
nsresult rv = ResolveAndStat( PR_TRUE );
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 = ResolveAndStat( PR_TRUE );
if (NS_FAILED(rv))
return rv;
nsCAutoString path;
PRBool symLink;
rv = IsSymlink(&symLink);
if (NS_FAILED(rv))
return rv;
if (symLink)
GetNativeTarget(path);
else
GetNativePath(path);
// Get extension.
char* ext = ::strrchr( path.get(), '.' );
if ( ext ) {
// Convert extension to lower case.
for( char *p = ext; *p; p++ ) {
if ( ::isupper( *p ) ) {
*p = ::tolower( *p );
}
}
// Search for any of the set of executable extensions.
const char * const executableExts[] = { ".exe",
".bat",
".com",
".pif",
".cmd",
".js",
".vbs",
".lnk",
".reg",
".wsf",
0 };
for ( int i = 0; executableExts[i]; i++ ) {
if ( ::strcmp( executableExts[i], ext ) == 0 ) {
// Found a match. Set result and quit.
*_retval = PR_TRUE;
break;
}
}
}
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsDirectory(PRBool *_retval)
{
NS_ENSURE_ARG(_retval);
*_retval = PR_FALSE;
nsresult rv = ResolveAndStat(PR_TRUE);
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);
*_retval = PR_FALSE;
nsresult rv = ResolveAndStat(PR_TRUE);
if (NS_FAILED(rv))
return rv;
*_retval = (mFileInfo64.type == PR_FILE_FILE);
return rv;
}
NS_IMETHODIMP
nsLocalFile::IsHidden(PRBool *_retval)
{
NS_ENSURE_ARG(_retval);
*_retval = PR_FALSE;
nsresult rv = ResolveAndStat(PR_TRUE);
if (NS_FAILED(rv))
return rv;
DWORD word;
if (mFollowSymlinks)
{
const char *resolvedFilePath = mResolvedPath.get();
word = GetFileAttributes(resolvedFilePath);
}
else
{
const char *workingFilePath = mWorkingPath.get();
word = GetFileAttributes(workingFilePath);
}
*_retval = ((word & FILE_ATTRIBUTE_HIDDEN) != 0);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsSymlink(PRBool *_retval)
{
NS_ENSURE_ARG(_retval);
*_retval = PR_FALSE;
nsCAutoString path;
int pathLen;
GetNativePath(path);
pathLen = path.Length();
const char* leaf = path.get() + pathLen - 4;
if ( (strcmp(leaf, ".lnk") == 0))
{
*_retval = PR_TRUE;
}
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsSpecial(PRBool *_retval)
{
NS_ENSURE_ARG(_retval);
*_retval = PR_FALSE;
nsresult rv = ResolveAndStat(PR_TRUE);
if (NS_FAILED(rv))
return rv;
const char *workingFilePath = mWorkingPath.get();
DWORD word = GetFileAttributes(workingFilePath);
*_retval = ((word & FILE_ATTRIBUTE_SYSTEM) != 0);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::Equals(nsIFile *inFile, PRBool *_retval)
{
NS_ENSURE_ARG(inFile);
NS_ENSURE_ARG(_retval);
nsCAutoString inFilePath;
inFile->GetNativePath(inFilePath);
*_retval = inFilePath.Equals(mWorkingPath);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::Contains(nsIFile *inFile, PRBool recur, PRBool *_retval)
{
*_retval = PR_FALSE;
nsCAutoString myFilePath;
if ( NS_FAILED(GetNativeTarget(myFilePath)))
GetNativePath(myFilePath);
PRInt32 myFilePathLen = myFilePath.Length();
nsCAutoString inFilePath;
if ( NS_FAILED(inFile->GetNativeTarget(inFilePath)))
inFile->GetNativePath(inFilePath);
if ( strncmp( myFilePath.get(), inFilePath.get(), myFilePathLen) == 0)
{
// now make sure that the |inFile|'s path has a trailing
// separator.
if (inFilePath[myFilePathLen] == '\\')
{
*_retval = PR_TRUE;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetNativeTarget(nsACString &_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(PR_TRUE);
_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;
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)
{
return GetNativePath(aPersistentDescriptor);
}
NS_IMETHODIMP
nsLocalFile::SetPersistentDescriptor(const nsACString &aPersistentDescriptor)
{
return InitWithNativePath(aPersistentDescriptor);
}
NS_IMETHODIMP
nsLocalFile::Reveal()
{
nsresult rv = NS_OK;
PRBool isDirectory = PR_FALSE;
nsCAutoString path;
nsAutoString unicodePath;
IsDirectory(&isDirectory);
if (isDirectory)
{
GetNativePath(path);
}
else
{
nsCOMPtr<nsIFile> parent;
GetParent(getter_AddRefs(parent));
if (parent)
{
parent->GetNativePath(path);
parent->GetPath(unicodePath);
}
}
// Remember the current fg window.
HWND origWin, fgWin;
origWin = fgWin = ::GetForegroundWindow();
// use the app registry name to launch a shell execute....
LONG r = (LONG) ::ShellExecute( NULL, "open", path.get(), NULL, NULL, SW_SHOWNORMAL);
if (r < 32)
return NS_ERROR_FAILURE;
// If this is a directory, then we don't need to select a file.
if (isDirectory)
return NS_OK;
// Resources we may need to free when done.
IShellFolder *desktopFolder = 0;
IMalloc *shellMalloc = 0;
IShellFolder *folder = 0;
LPITEMIDLIST folder_pidl = 0;
LPITEMIDLIST file_pidl = 0;
LPITEMIDLIST win95_file_pidl = 0;
HMODULE shell32 = 0;
// We break out of this do/while non-loop at any point where we have to give up.
do {
// Wait for the window to open. We wait a maximum of 2 seconds.
// If we get the wrong window, that will be dealt with below.
for (int iter = 10; iter; iter--)
{
fgWin = ::GetForegroundWindow();
if (fgWin != origWin)
break; // for loopo
::Sleep(200);
}
// If we failed to locate the new window, give up.
if (origWin == fgWin)
break; // do/while
// Now we have the explorer window. We need to send it the "select item"
// message (which isn't trivial, so buckly your seat belt)...
// We need the explorer's process id.
DWORD pid = 0;
::GetWindowThreadProcessId(fgWin, &pid);
// Get desktop folder.
HRESULT rc = ::SHGetDesktopFolder(&desktopFolder);
if (!desktopFolder)
break;
// Get IMalloc interface to use for shell pidls.
rc = ::SHGetMalloc(&shellMalloc);
if (!shellMalloc)
break;
// Convert folder path to pidl. This requires the Unicode path name.
// It returns a pidl that must be freed via shellMalloc->Free.
ULONG eaten = 0;
rc = desktopFolder->ParseDisplayName( 0,
0,
(LPOLESTR)unicodePath.get(),
&eaten,
&folder_pidl,
0 );
if (!folder_pidl)
break;
// Now get IShellFolder interface for the folder we opened.
rc = desktopFolder->BindToObject( folder_pidl,
0,
IID_IShellFolder,
(void**)&folder );
if (!folder)
break;
// Now get file name pidl from that folder.
nsAutoString unicodeLeaf;
if (NS_FAILED(GetLeafName(unicodeLeaf)))
break;
rc = folder->ParseDisplayName( 0,
0,
(LPOLESTR)unicodeLeaf.get(),
&eaten,
&file_pidl,
0 );
if (!file_pidl)
break;
// We need the module handle for shell32.dll.
shell32 = ::GetModuleHandle("shell32.dll");
if (!shell32)
break;
// Allocate shared memory copy of pidl. This uses the undocumented "SHAllocShared"
// function. Note that it is freed automatically after the ::SendMessage so we
// don't have to free it.
static HANDLE(WINAPI*SHAllocShared)(LPVOID,ULONG,DWORD) = (HANDLE(WINAPI*)(LPVOID,ULONG,DWORD))::GetProcAddress(shell32, (LPCTSTR)520);
HANDLE pidlHandle = 0;
if (SHAllocShared)
{
// We need the size of the pidl, which we get via another undocumented
// API: "ILGetSize".
UINT (WINAPI*ILGetSize)(LPCITEMIDLIST) = (UINT(WINAPI*)(LPCITEMIDLIST))::GetProcAddress(shell32, (LPCTSTR)152);
if (!ILGetSize)
break;
pidlHandle = SHAllocShared((void*)(ITEMIDLIST*)file_pidl,
ILGetSize(file_pidl),
pid);
if (!pidlHandle)
break;
}
else
{
// On Win95, there is no SHAllocShared. Instead, we clone the file's pidl in
// the shell's global heap (via ILGlobalClone) and pass that.
LPITEMIDLIST(WINAPI*ILGlobalClone)(LPCITEMIDLIST) = (LPITEMIDLIST(WINAPI*)(LPCITEMIDLIST))::GetProcAddress(shell32, (LPCTSTR)20);
if (!ILGlobalClone)
break;
win95_file_pidl = ILGlobalClone(file_pidl);
if (!win95_file_pidl)
break;
// Arrange so that this pidl is passed on the ::SendMessage.
pidlHandle = win95_file_pidl;
}
// Send message to select this file.
::SendMessage(fgWin,
WM_USER+5,
SVSI_SELECT | SVSI_DESELECTOTHERS | SVSI_ENSUREVISIBLE,
(LPARAM)pidlHandle );
} while ( PR_FALSE );
// Clean up (freeing stuff as needed, in reverse order).
if (win95_file_pidl)
{
// We need to free this using ILGlobalFree, another undocumented API.
static void (WINAPI*ILGlobalFree)(LPCITEMIDLIST) = (void(WINAPI*)(LPCITEMIDLIST))::GetProcAddress(shell32,(LPCTSTR)156);
if (ILGlobalFree)
ILGlobalFree(win95_file_pidl);
}
if (file_pidl)
shellMalloc->Free(file_pidl);
if (folder_pidl)
shellMalloc->Free(folder_pidl);
if (folder)
folder->Release();
if (shellMalloc)
shellMalloc->Release();
if (desktopFolder)
desktopFolder->Release();
return rv;
}
NS_IMETHODIMP
nsLocalFile::Launch()
{
nsresult rv = NS_OK;
const nsCString &path = mWorkingPath;
// use the app registry name to launch a shell execute....
LONG r = (LONG) ::ShellExecute( 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) {
nsCAutoString shellArg;
shellArg.Assign(NS_LITERAL_CSTRING("shell32.dll,OpenAs_RunDLL ") + path);
r = (LONG) ::ShellExecute(NULL, NULL, "RUNDLL32.EXE", shellArg.get(),
NULL, SW_SHOWNORMAL);
}
if (r < 32)
rv = NS_ERROR_FAILURE;
else
rv = NS_OK;
return rv;
}
nsresult
NS_NewNativeLocalFile(const nsACString &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->InitWithNativePath(path);
if (NS_FAILED(rv)) {
NS_RELEASE(file);
return rv;
}
}
*result = file;
return NS_OK;
}
//-----------------------------------------------------------------------------
// UCS2 interface
//-----------------------------------------------------------------------------
nsresult
nsLocalFile::InitWithPath(const nsAString &filePath)
{
nsCAutoString tmp;
nsresult rv = NS_CopyUnicodeToNative(filePath, tmp);
if (NS_SUCCEEDED(rv))
return InitWithNativePath(tmp);
return rv;
}
nsresult
nsLocalFile::Append(const nsAString &node)
{
nsCAutoString tmp;
nsresult rv = NS_CopyUnicodeToNative(node, tmp);
if (NS_SUCCEEDED(rv))
return AppendNative(tmp);
return rv;
}
nsresult
nsLocalFile::AppendRelativePath(const nsAString &node)
{
nsCAutoString tmp;
nsresult rv = NS_CopyUnicodeToNative(node, tmp);
if (NS_SUCCEEDED(rv))
return AppendRelativeNativePath(tmp);
return rv;
}
nsresult
nsLocalFile::GetLeafName(nsAString &aLeafName)
{
nsCAutoString tmp;
nsresult rv = GetNativeLeafName(tmp);
if (NS_SUCCEEDED(rv))
rv = NS_CopyNativeToUnicode(tmp, aLeafName);
return rv;
}
nsresult
nsLocalFile::SetLeafName(const nsAString &aLeafName)
{
nsCAutoString tmp;
nsresult rv = NS_CopyUnicodeToNative(aLeafName, tmp);
if (NS_SUCCEEDED(rv))
return SetNativeLeafName(tmp);
return rv;
}
nsresult
nsLocalFile::GetPath(nsAString &_retval)
{
return NS_CopyNativeToUnicode(mWorkingPath, _retval);
}
nsresult
nsLocalFile::CopyTo(nsIFile *newParentDir, const nsAString &newName)
{
if (newName.IsEmpty())
return CopyToNative(newParentDir, nsCString());
nsCAutoString tmp;
nsresult rv = NS_CopyUnicodeToNative(newName, tmp);
if (NS_SUCCEEDED(rv))
return CopyToNative(newParentDir, tmp);
return rv;
}
nsresult
nsLocalFile::CopyToFollowingLinks(nsIFile *newParentDir, const nsAString &newName)
{
if (newName.IsEmpty())
return CopyToFollowingLinksNative(newParentDir, nsCString());
nsCAutoString tmp;
nsresult rv = NS_CopyUnicodeToNative(newName, tmp);
if (NS_SUCCEEDED(rv))
return CopyToFollowingLinksNative(newParentDir, tmp);
return rv;
}
nsresult
nsLocalFile::MoveTo(nsIFile *newParentDir, const nsAString &newName)
{
if (newName.IsEmpty())
return MoveToNative(newParentDir, nsCString());
nsCAutoString tmp;
nsresult rv = NS_CopyUnicodeToNative(newName, tmp);
if (NS_SUCCEEDED(rv))
return MoveToNative(newParentDir, tmp);
return rv;
}
nsresult
nsLocalFile::GetTarget(nsAString &_retval)
{
nsCAutoString tmp;
nsresult rv = GetNativeTarget(tmp);
if (NS_SUCCEEDED(rv))
rv = NS_CopyNativeToUnicode(tmp, _retval);
return rv;
}
nsresult
NS_NewLocalFile(const nsAString &path, PRBool followLinks, nsILocalFile* *result)
{
nsCAutoString tmp;
nsresult rv = NS_CopyUnicodeToNative(path, tmp);
if (NS_SUCCEEDED(rv))
return NS_NewNativeLocalFile(tmp, followLinks, result);
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsLocalFile <static members>
//-----------------------------------------------------------------------------
void
nsLocalFile::GlobalInit()
{
nsresult rv = NS_CreateShortcutResolver();
NS_ASSERTION(NS_SUCCEEDED(rv), "Shortcut resolver could not be created");
}
void
nsLocalFile::GlobalShutdown()
{
NS_DestroyShortcutResolver();
}
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