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100ce2c5f3
gecko/xpcom/io/nsLocalFileOS2.cpp
Joshua Cranmer 03b669f709 Bug 884061 - Part 3y: Use NS_DECL_THREADSAFE_ISUPPORTS in xpcom/, r=bsmedberg 
--HG--
extra : rebase_source : d54f6973e3ff859207115013e8361781769ffc76
2013-07-18 21:31:26 -05:00

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66 KiB
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
// N.B. the ns* & pr* headers below will #include all
// of the standard library headers this file requires
#include "nsCOMPtr.h"
#include "nsMemory.h"
#include "nsLocalFile.h"
#include "nsNativeCharsetUtils.h"
#include "nsISimpleEnumerator.h"
#include "nsIDirectoryEnumerator.h"
#include "nsIComponentManager.h"
#include "prio.h"
#include "nsReadableUtils.h"
#include "nsISupportsPrimitives.h"
#include "nsIMutableArray.h"
#include "nsTraceRefcntImpl.h"
using namespace mozilla;
#define CHECK_mWorkingPath() \
PR_BEGIN_MACRO \
if (mWorkingPath.IsEmpty()) \
return NS_ERROR_NOT_INITIALIZED; \
PR_END_MACRO
//-----------------------------------------------------------------------------
// static helper functions
//-----------------------------------------------------------------------------
static nsresult ConvertOS2Error(int err)
{
nsresult rv;
switch (err)
{
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;
default:
rv = NS_ERROR_FAILURE;
}
return rv;
}
static void
myLL_L2II(int64_t result, int32_t *hi, int32_t *lo )
{
int64_t a64, b64; // probably could have been done with
// only one int64_t, but these are macros,
// and I am a wimp.
// shift the hi word to the low word, then push it into a long.
a64 = result >> 32;
*hi = int32_t(a64);
// shift the low word to the hi word first, then shift it back.
b64 = result << 32;
a64 = b64 >> 32;
*lo = int32_t(a64);
}
// Locates the first occurrence of charToSearchFor in the stringToSearch
static unsigned char*
_mbschr(const unsigned char* stringToSearch, int charToSearchFor)
{
const unsigned char* p = stringToSearch;
do {
if (*p == charToSearchFor)
break;
p = (const unsigned char*)WinNextChar(0,0,0,(char*)p);
} while (*p);
// Result is p or NULL
return *p ? (unsigned char*)p : NULL;
}
// Locates the first occurrence of subString in the stringToSearch
static unsigned char*
_mbsstr(const unsigned char* stringToSearch, const unsigned char* subString)
{
const unsigned char* pStr = stringToSearch;
const unsigned char* pSub = subString;
do {
while (*pStr && *pStr != *pSub)
pStr = (const unsigned char*)WinNextChar(0,0,0,(char*)pStr);
if (!*pStr)
break;
const unsigned char* pNxt = pStr;
do {
pSub = (const unsigned char*)WinNextChar(0,0,0,(char*)pSub);
pNxt = (const unsigned char*)WinNextChar(0,0,0,(char*)pNxt);
} while (*pSub && *pSub == *pNxt);
if (!*pSub)
break;
pSub = subString;
pStr = (const unsigned char*)WinNextChar(0,0,0,(char*)pStr);
} while (*pStr);
// if we got to the end of pSub, we've found it
return *pSub ? NULL : (unsigned char*)pStr;
}
// Locates last occurence of charToSearchFor in the stringToSearch
NS_EXPORT unsigned char*
_mbsrchr(const unsigned char* stringToSearch, int charToSearchFor)
{
int length = strlen((const char*)stringToSearch);
const unsigned char* p = stringToSearch+length;
do {
if (*p == charToSearchFor)
break;
p = (const unsigned char*)WinPrevChar(0,0,0,(char*)stringToSearch,(char*)p);
} while (p > stringToSearch);
// Result is p or NULL
return (*p == charToSearchFor) ? (unsigned char*)p : NULL;
}
// Implement equivalent of Win32 CreateDirectoryA
static nsresult
CreateDirectoryA(PSZ path, PEAOP2 ppEABuf)
{
APIRET rc;
nsresult rv;
FILESTATUS3 pathInfo;
rc = DosCreateDir(path, ppEABuf);
if (rc != NO_ERROR)
{
rv = ConvertOS2Error(rc);
// Check if directory already exists and if so,
// reflect that in the return value
rc = DosQueryPathInfo(path, FIL_STANDARD,
&pathInfo, sizeof(pathInfo));
if (rc == NO_ERROR)
rv = ERROR_FILE_EXISTS;
}
else
rv = rc;
return rv;
}
static int isleadbyte(int c)
{
static BOOL bDBCSFilled = FALSE;
// According to the Control Program Guide&Ref, 12 bytes is sufficient
static BYTE DBCSInfo[12] = { 0 };
BYTE *curr;
BOOL retval = FALSE;
if(!bDBCSFilled)
{
COUNTRYCODE ctrycodeInfo = { 0 };
APIRET rc = NO_ERROR;
ctrycodeInfo.country = 0; // Current Country
ctrycodeInfo.codepage = 0; // Current Codepage
rc = DosQueryDBCSEnv(sizeof(DBCSInfo), &ctrycodeInfo, DBCSInfo);
// we had an error, do something?
if (rc != NO_ERROR)
return FALSE;
bDBCSFilled=TRUE;
}
// DBCSInfo returned by DosQueryDBCSEnv is terminated
// with two '0' bytes in a row
curr = DBCSInfo;
while(*curr != 0 && *(curr+1) != 0)
{
if(c >= *curr && c <= *(curr+1))
{
retval=TRUE;
break;
}
curr+=2;
}
return retval;
}
//-----------------------------------------------------------------------------
// nsDirEnumerator
//-----------------------------------------------------------------------------
class nsDirEnumerator : public nsISimpleEnumerator,
public nsIDirectoryEnumerator
{
public:
NS_DECL_ISUPPORTS
nsDirEnumerator() : mDir(nullptr)
{
}
nsresult Init(nsIFile* parent)
{
nsAutoCString filepath;
parent->GetNativeTarget(filepath);
if (filepath.IsEmpty())
{
parent->GetNativePath(filepath);
}
if (filepath.IsEmpty())
{
return NS_ERROR_UNEXPECTED;
}
mDir = PR_OpenDir(filepath.get());
if (mDir == nullptr) // not a directory?
return NS_ERROR_FAILURE;
mParent = parent;
return NS_OK;
}
NS_IMETHOD HasMoreElements(bool *result)
{
nsresult rv;
if (mNext == nullptr && mDir)
{
PRDirEntry* entry = PR_ReadDir(mDir, PR_SKIP_BOTH);
if (entry == nullptr)
{
// end of dir entries
PRStatus status = PR_CloseDir(mDir);
if (status != PR_SUCCESS)
return NS_ERROR_FAILURE;
mDir = nullptr;
*result = 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.
bool exists;
rv = file->Exists(&exists);
if (NS_FAILED(rv) || !exists)
{
return HasMoreElements(result);
}
mNext = do_QueryInterface(file);
}
*result = mNext != nullptr;
if (!*result)
Close();
return NS_OK;
}
NS_IMETHOD GetNext(nsISupports **result)
{
nsresult rv;
bool hasMore;
rv = HasMoreElements(&hasMore);
if (NS_FAILED(rv)) return rv;
*result = mNext; // might return nullptr
NS_IF_ADDREF(*result);
mNext = nullptr;
return NS_OK;
}
NS_IMETHOD GetNextFile(nsIFile **result)
{
*result = nullptr;
bool hasMore = false;
nsresult rv = HasMoreElements(&hasMore);
if (NS_FAILED(rv) || !hasMore)
return rv;
*result = mNext;
NS_IF_ADDREF(*result);
mNext = nullptr;
return NS_OK;
}
NS_IMETHOD Close()
{
if (mDir)
{
PRStatus status = PR_CloseDir(mDir);
NS_ASSERTION(status == PR_SUCCESS, "close failed");
if (status != PR_SUCCESS)
return NS_ERROR_FAILURE;
mDir = nullptr;
}
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:
PRDir* mDir;
nsCOMPtr<nsIFile> mParent;
nsCOMPtr<nsIFile> mNext;
};
NS_IMPL_ISUPPORTS2(nsDirEnumerator, nsISimpleEnumerator, nsIDirectoryEnumerator)
//-----------------------------------------------------------------------------
// nsDriveEnumerator
//-----------------------------------------------------------------------------
class nsDriveEnumerator : public nsISimpleEnumerator
{
public:
nsDriveEnumerator();
virtual ~nsDriveEnumerator();
NS_DECL_ISUPPORTS
NS_DECL_NSISIMPLEENUMERATOR
nsresult Init();
private:
// mDrives is a bitmap representing the available drives
// mLetter is incremented each time mDrives is shifted rightward
uint32_t mDrives;
uint8_t mLetter;
};
NS_IMPL_ISUPPORTS1(nsDriveEnumerator, nsISimpleEnumerator)
nsDriveEnumerator::nsDriveEnumerator()
: mDrives(0), mLetter(0)
{
}
nsDriveEnumerator::~nsDriveEnumerator()
{
}
nsresult nsDriveEnumerator::Init()
{
ULONG ulCurrent;
// bits 0-25 in mDrives represent each possible drive, A-Z
DosError(FERR_DISABLEHARDERR);
APIRET rc = DosQueryCurrentDisk(&ulCurrent, (PULONG)&mDrives);
DosError(FERR_ENABLEHARDERR);
if (rc)
return NS_ERROR_FAILURE;
mLetter = 'A';
return NS_OK;
}
NS_IMETHODIMP nsDriveEnumerator::HasMoreElements(bool *aHasMore)
{
// no more bits means no more drives
*aHasMore = (mDrives != 0);
return NS_OK;
}
NS_IMETHODIMP nsDriveEnumerator::GetNext(nsISupports **aNext)
{
if (!mDrives)
{
*aNext = nullptr;
return NS_OK;
}
// if bit 0 is off, advance to the next bit that's on
while ((mDrives & 1) == 0)
{
mDrives >>= 1;
mLetter++;
}
// format a drive string, then advance to the next possible drive
char drive[4] = "x:\\";
drive[0] = mLetter;
mDrives >>= 1;
mLetter++;
nsIFile *file;
nsresult rv = NS_NewNativeLocalFile(nsDependentCString(drive),
false, &file);
*aNext = file;
return rv;
}
//-----------------------------------------------------------------------------
// class TypeEaEnumerator - a convenience for accessing
// a file's .TYPE extended attribute
//-----------------------------------------------------------------------------
// this struct describes the first entry for an MVMT or MVST EA;
// .TYPE is supposed to be MVMT but is sometimes malformed as MVST
typedef struct _MVHDR {
USHORT usEAType;
USHORT usCodePage;
USHORT usNumEntries;
USHORT usDataType;
USHORT usDataLth;
char data[1];
} MVHDR;
typedef MVHDR *PMVHDR;
class TypeEaEnumerator
{
public:
TypeEaEnumerator() : mEaBuf(nullptr) { }
~TypeEaEnumerator() { if (mEaBuf) NS_Free(mEaBuf); }
nsresult Init(nsLocalFile * aFile);
char * GetNext(uint32_t *lth);
private:
char * mEaBuf;
char * mpCur;
PMVHDR mpMvh;
USHORT mLth;
USHORT mCtr;
};
nsresult TypeEaEnumerator::Init(nsLocalFile * aFile)
{
#define EABUFSIZE 512
// provide a buffer for the results
mEaBuf = (char*)NS_Alloc(EABUFSIZE);
if (!mEaBuf)
return NS_ERROR_OUT_OF_MEMORY;
PFEA2LIST pfea2list = (PFEA2LIST)mEaBuf;
pfea2list->cbList = EABUFSIZE;
// ask for the .TYPE extended attribute
nsresult rv = aFile->GetEA(".TYPE", pfea2list);
if (NS_FAILED(rv))
return rv;
// point at the data - it starts immediately after the EA's name;
// then confirm the EA is MVMT (correct) or MVST (acceptable)
mpMvh = (PMVHDR)&(pfea2list->list[0].szName[pfea2list->list[0].cbName+1]);
if (mpMvh->usEAType != EAT_MVMT)
if (mpMvh->usEAType != EAT_MVST || mpMvh->usDataType != EAT_ASCII)
return NS_ERROR_FAILURE;
// init the variables that tell us where we are in the lsit
mLth = 0;
mCtr = 0;
mpCur = (char*)(mpMvh->usEAType == EAT_MVMT ?
&mpMvh->usDataType : &mpMvh->usDataLth);
return NS_OK;
}
char * TypeEaEnumerator::GetNext(uint32_t *lth)
{
char * result = nullptr;
// this is a loop so we can skip invalid entries if needed;
// normally, it will break out on the first iteration
while (mCtr++ < mpMvh->usNumEntries) {
// advance to the next entry
mpCur += mLth;
// if MVMT, ensure the datatype is OK, then advance
// to the length field present in both formats
if (mpMvh->usEAType == EAT_MVMT) {
if (*((PUSHORT)mpCur) != EAT_ASCII)
continue;
mpCur += sizeof(USHORT);
}
// get the data's length, point at the data itself, then exit
mLth = *lth = *((PUSHORT)mpCur);
mpCur += sizeof(USHORT);
result = mpCur;
break;
}
return result;
}
//-----------------------------------------------------------------------------
// nsLocalFile <public>
//-----------------------------------------------------------------------------
nsLocalFile::nsLocalFile()
: mDirty(true)
{
}
nsresult
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_ISUPPORTS4(nsLocalFile,
nsILocalFile,
nsIFile,
nsILocalFileOS2,
nsIHashable)
//-----------------------------------------------------------------------------
// nsLocalFile <private>
//-----------------------------------------------------------------------------
nsLocalFile::nsLocalFile(const nsLocalFile& other)
: mDirty(true)
, mWorkingPath(other.mWorkingPath)
{
}
// Stat the path. After a successful return the path is
// guaranteed valid and the members of mFileInfo64 can be used.
nsresult
nsLocalFile::Stat()
{
// if we aren't dirty then we are already done
if (!mDirty)
return NS_OK;
// we can't stat anything that isn't a valid NSPR addressable path
if (mWorkingPath.IsEmpty())
return NS_ERROR_FILE_INVALID_PATH;
// hack designed to work around bug 134796 until it is fixed
char temp[4];
const char *nsprPath = mWorkingPath.get();
if (mWorkingPath.Length() == 2 && mWorkingPath.CharAt(1) == ':')
{
temp[0] = mWorkingPath[0];
temp[1] = mWorkingPath[1];
temp[2] = '\\';
temp[3] = '\0';
nsprPath = temp;
}
// see if the working path exists
DosError(FERR_DISABLEHARDERR);
PRStatus status = PR_GetFileInfo64(nsprPath, &mFileInfo64);
DosError(FERR_ENABLEHARDERR);
if (status != PR_SUCCESS)
return NS_ERROR_FILE_NOT_FOUND;
mDirty = 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::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. Also, it must have a colon at after the first char.
if (FindCharInReadable('/', begin, end))
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
if (secondChar != ':' && (secondChar != '\\' || firstChar != '\\'))
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
mWorkingPath = filePath;
// kill any trailing '\' provided it isn't the second char of DBCS
int32_t len = mWorkingPath.Length() - 1;
if (mWorkingPath[len] == '\\' && !::isleadbyte(mWorkingPath[len - 1]))
mWorkingPath.Truncate(len);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::OpenNSPRFileDesc(int32_t flags, int32_t mode, PRFileDesc **_retval)
{
nsresult rv = Stat();
if (NS_FAILED(rv) && rv != NS_ERROR_FILE_NOT_FOUND)
return rv;
*_retval = PR_Open(mWorkingPath.get(), flags, mode);
if (*_retval)
return NS_OK;
if (flags & DELETE_ON_CLOSE) {
PR_Delete(mWorkingPath.get());
}
return NS_ErrorAccordingToNSPR();
}
NS_IMETHODIMP
nsLocalFile::OpenANSIFileDesc(const char *mode, FILE * *_retval)
{
nsresult rv = Stat();
if (NS_FAILED(rv) && rv != NS_ERROR_FILE_NOT_FOUND)
return rv;
*_retval = fopen(mWorkingPath.get(), mode);
if (*_retval)
return NS_OK;
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsLocalFile::Create(uint32_t type, uint32_t attributes)
{
if (type != NORMAL_FILE_TYPE && type != DIRECTORY_TYPE)
return NS_ERROR_FILE_UNKNOWN_TYPE;
nsresult rv = Stat();
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.
unsigned char* path = (unsigned char*) mWorkingPath.BeginWriting();
if (path[0] == '\\' && path[1] == '\\')
{
// dealing with a UNC path here; skip past '\\machine\'
path = _mbschr(path + 2, '\\');
if (!path)
return NS_ERROR_FILE_INVALID_PATH;
++path;
}
// search for first slash after the drive (or volume) name
unsigned char* slash = _mbschr(path, '\\');
if (slash)
{
// skip the first '\\'
++slash;
slash = _mbschr(slash, '\\');
while (slash)
{
*slash = '\0';
rv = CreateDirectoryA(const_cast<char*>(mWorkingPath.get()), NULL);
if (rv) {
rv = ConvertOS2Error(rv);
if (rv != NS_ERROR_FILE_ALREADY_EXISTS)
return rv;
}
*slash = '\\';
++slash;
slash = _mbschr(slash, '\\');
}
}
if (type == NORMAL_FILE_TYPE)
{
PRFileDesc* file = PR_Open(mWorkingPath.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)
{
rv = CreateDirectoryA(const_cast<char*>(mWorkingPath.get()), NULL);
if (rv)
return ConvertOS2Error(rv);
else
return NS_OK;
}
return NS_ERROR_FILE_UNKNOWN_TYPE;
}
NS_IMETHODIMP
nsLocalFile::AppendNative(const nsACString &node)
{
// append this path, multiple components are not permitted
return AppendNativeInternal(PromiseFlatCString(node), false);
}
NS_IMETHODIMP
nsLocalFile::AppendRelativeNativePath(const nsACString &node)
{
// append this path, multiple components are permitted
return AppendNativeInternal(PromiseFlatCString(node), true);
}
nsresult
nsLocalFile::AppendNativeInternal(const nsAFlatCString &node, bool multipleComponents)
{
if (node.IsEmpty())
return NS_OK;
// check the relative path for validity
const unsigned char * nodePath = (const unsigned char *) node.get();
if (*nodePath == '\\' // can't start with an '\'
|| _mbschr(nodePath, '/') // can't contain /
|| node.Equals("..")) // can't be ..
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
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.
const unsigned char * doubleDot = _mbsstr(nodePath, (const unsigned char *)"\\..");
while (doubleDot)
{
doubleDot += 3;
if (*doubleDot == '\0' || *doubleDot == '\\')
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
doubleDot = _mbsstr(doubleDot, (unsigned char *)"\\..");
}
// catches the remaining cases of prefixes (i.e. '..\')
// note: this is a substitute for Win32's _mbsncmp(nodePath, "..\\", 3)
if (*nodePath == '.') {
nodePath = (const unsigned char*)WinNextChar(0,0,0,(char*)nodePath);
if (*nodePath == '.' &&
*WinNextChar(0,0,0,(char*)nodePath) == '\\')
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
}
}
else if (_mbschr(nodePath, '\\')) // single components can't contain '\'
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
MakeDirty();
mWorkingPath.Append(NS_LITERAL_CSTRING("\\") + node);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::Normalize()
{
// XXX See bug 187957 comment 18 for possible problems with this implementation.
if (mWorkingPath.IsEmpty())
return NS_OK;
// work in unicode for ease
nsAutoString path;
NS_CopyNativeToUnicode(mWorkingPath, path);
// find the index of the root backslash for the path. Everything before
// this is considered fully normalized and cannot be ascended beyond
// using ".." For a local drive this is the first slash (e.g. "c:\").
// For a UNC path it is the slash following the share name
// (e.g. "\\server\share\").
int32_t rootIdx = 2; // default to local drive
if (path.First() == '\\') // if a share then calculate the rootIdx
{
rootIdx = path.FindChar('\\', 2); // skip \\ in front of the server
if (rootIdx == kNotFound)
return NS_OK; // already normalized
rootIdx = path.FindChar('\\', rootIdx+1);
if (rootIdx == kNotFound)
return NS_OK; // already normalized
}
else if (path.CharAt(rootIdx) != '\\')
{
// 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).
char drv[4] = "A:.";
char cwd[CCHMAXPATH];
drv[0] = mWorkingPath.First();
if (DosQueryPathInfo(drv, FIL_QUERYFULLNAME, cwd, sizeof(cwd)))
return NS_ERROR_FILE_NOT_FOUND;
nsAutoString currentDir;
NS_CopyNativeToUnicode(nsDependentCString(cwd), currentDir);
if (currentDir.Last() == '\\')
path.Replace(0, 2, currentDir);
else
path.Replace(0, 2, currentDir + NS_LITERAL_STRING("\\"));
}
NS_POSTCONDITION(0 < rootIdx && rootIdx < (int32_t)path.Length(), "rootIdx is invalid");
NS_POSTCONDITION(path.CharAt(rootIdx) == '\\', "rootIdx is invalid");
// if there is nothing following the root path then it is already normalized
if (rootIdx + 1 == (int32_t)path.Length())
return NS_OK;
// assign the root
nsAutoString normal;
const PRUnichar * pathBuffer = path.get(); // simplify access to the buffer
normal.SetCapacity(path.Length()); // it won't ever grow longer
normal.Assign(pathBuffer, rootIdx);
// Normalize the path components. The actions taken are:
//
// "\\" condense to single backslash
// "." remove from path
// ".." up a directory
// "..." remove from path (any number of dots > 2)
//
// The last form is something that Windows 95 and 98 supported and
// is a shortcut for changing up multiple directories. Windows XP
// and ilk ignore it in a path, as is done here.
int32_t len, begin, end = rootIdx;
while (end < (int32_t)path.Length())
{
// find the current segment (text between the backslashes) to
// be examined, this will set the following variables:
// begin == index of first char in segment
// end == index 1 char after last char in segment
// len == length of segment
begin = end + 1;
end = path.FindChar('\\', begin);
if (end == kNotFound)
end = path.Length();
len = end - begin;
// ignore double backslashes
if (len == 0)
continue;
// len != 0, and interesting paths always begin with a dot
if (pathBuffer[begin] == '.')
{
// ignore single dots
if (len == 1)
continue;
// handle multiple dots
if (len >= 2 && pathBuffer[begin+1] == '.')
{
// back up a path component on double dot
if (len == 2)
{
int32_t prev = normal.RFindChar('\\');
if (prev >= rootIdx)
normal.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] != '.')
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
normal.Append(pathBuffer + begin - 1, len + 1);
}
// kill trailing dots and spaces.
int32_t filePathLen = normal.Length() - 1;
while(filePathLen > 0 && (normal[filePathLen] == ' ' || normal[filePathLen] == '.'))
{
normal.Truncate(filePathLen--);
}
NS_CopyUnicodeToNative(normal, mWorkingPath);
MakeDirty();
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetNativeLeafName(nsACString &aLeafName)
{
aLeafName.Truncate();
const char* temp = mWorkingPath.get();
if(temp == nullptr)
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 == nullptr)
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 == nullptr)
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
// cannot use nsCString::RFindChar() due to 0x5c problem
int32_t offset = (int32_t) (_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;
}
//-----------------------------------------------------------------------------
// get any single extended attribute for the current file or directory
nsresult
nsLocalFile::GetEA(const char *eaName, PFEA2LIST pfea2list)
{
// ensure we have an out-buffer whose length is specified
if (!pfea2list || !pfea2list->cbList)
return NS_ERROR_FAILURE;
// the gea2list's name field is only 1 byte long;
// this expands its allocation to hold a 33 byte name
union {
GEA2LIST gea2list;
char dummy[sizeof(GEA2LIST)+32];
};
EAOP2 eaop2;
eaop2.fpFEA2List = pfea2list;
eaop2.fpGEA2List = &gea2list;
// fill in the request structure
dummy[sizeof(GEA2LIST)+31] = 0;
gea2list.list[0].oNextEntryOffset = 0;
strcpy(gea2list.list[0].szName, eaName);
gea2list.list[0].cbName = strlen(gea2list.list[0].szName);
gea2list.cbList = sizeof(GEA2LIST) + gea2list.list[0].cbName;
// see what we get - this will succeed even if the EA doesn't exist
APIRET rc = DosQueryPathInfo(mWorkingPath.get(), FIL_QUERYEASFROMLIST,
&eaop2, sizeof(eaop2));
if (rc)
return ConvertOS2Error(rc);
// if the data length is zero, requested EA doesn't exist
if (!pfea2list->list[0].cbValue)
return NS_ERROR_FAILURE;
return NS_OK;
}
// return an array of file types or null if there are none
NS_IMETHODIMP
nsLocalFile::GetFileTypes(nsIArray **_retval)
{
NS_ENSURE_ARG(_retval);
*_retval = 0;
// fetch the .TYPE ea & prepare for enumeration
TypeEaEnumerator typeEnum;
nsresult rv = typeEnum.Init(this);
if (NS_FAILED(rv))
return rv;
// create an array that's scriptable
nsCOMPtr<nsIMutableArray> mutArray =
do_CreateInstance(NS_ARRAY_CONTRACTID);
NS_ENSURE_STATE(mutArray);
int32_t cnt;
uint32_t lth;
char * ptr;
// get each file type, convert to a CString, then add to the array
for (cnt=0, ptr=typeEnum.GetNext(&lth); ptr; ptr=typeEnum.GetNext(&lth)) {
nsCOMPtr<nsISupportsCString> typeString(
do_CreateInstance(NS_SUPPORTS_CSTRING_CONTRACTID, &rv));
if (NS_SUCCEEDED(rv)) {
nsAutoCString temp;
temp.Assign(ptr, lth);
typeString->SetData(temp);
mutArray->AppendElement(typeString, false);
cnt++;
}
}
// if the array has any contents, addref & return it
if (cnt) {
*_retval = mutArray;
NS_ADDREF(*_retval);
rv = NS_OK;
}
else
rv = NS_ERROR_FAILURE;
return rv;
}
// see if the file is of the requested type
NS_IMETHODIMP
nsLocalFile::IsFileType(const nsACString& fileType, bool *_retval)
{
NS_ENSURE_ARG(_retval);
*_retval = false;
// fetch the .TYPE ea & prepare for enumeration
TypeEaEnumerator typeEnum;
nsresult rv = typeEnum.Init(this);
if (NS_FAILED(rv))
return rv;
uint32_t lth;
char * ptr;
// compare each type to the request; if there's a match, exit
for (ptr = typeEnum.GetNext(&lth); ptr; ptr = typeEnum.GetNext(&lth))
if (fileType.EqualsASCII(ptr, lth)) {
*_retval = true;
break;
}
return NS_OK;
}
//-----------------------------------------------------------------------------
// this struct combines an FEA2LIST, an FEA2, plus additional fields
// needed to write a .TYPE EA in the correct EAT_MVMT format
#pragma pack(1)
typedef struct _TYPEEA {
struct {
ULONG ulcbList;
ULONG uloNextEntryOffset;
BYTE bfEA;
BYTE bcbName;
USHORT uscbValue;
char chszName[sizeof(".TYPE")];
} hdr;
struct {
USHORT usEAType;
USHORT usCodePage;
USHORT usNumEntries;
USHORT usDataType;
USHORT usDataLth;
} info;
char data[1];
} TYPEEA;
typedef struct _TYPEEA2 {
USHORT usDataType;
USHORT usDataLth;
} TYPEEA2;
#pragma pack()
// writes one or more .TYPE extended attributes taken
// from a comma-delimited string
NS_IMETHODIMP
nsLocalFile::SetFileTypes(const nsACString& fileTypes)
{
if (fileTypes.IsEmpty())
return NS_ERROR_FAILURE;
uint32_t cnt = CountCharInReadable(fileTypes, ',');
uint32_t lth = fileTypes.Length() - cnt + (cnt * sizeof(TYPEEA2));
uint32_t size = sizeof(TYPEEA) + lth;
char *pBuf = (char*)NS_Alloc(size);
if (!pBuf)
return NS_ERROR_OUT_OF_MEMORY;
TYPEEA *pEA = (TYPEEA *)pBuf;
// the buffer has an extra byte due to TYPEEA.data[1]
pEA->hdr.ulcbList = size - 1;
pEA->hdr.uloNextEntryOffset = 0;
pEA->hdr.bfEA = 0;
pEA->hdr.bcbName = sizeof(".TYPE") - 1;
pEA->hdr.uscbValue = sizeof(pEA->info) + lth;
strcpy(pEA->hdr.chszName, ".TYPE");
pEA->info.usEAType = EAT_MVMT;
pEA->info.usCodePage = 0;
pEA->info.usNumEntries = ++cnt;
nsACString::const_iterator begin, end, delim;
fileTypes.BeginReading(begin);
fileTypes.EndReading(end);
delim = begin;
// fill in type & length, copy the current type name (which
// is not zero-terminated), then advance the ptr so the next
// iteration can reuse the trailing members of the structure
do {
FindCharInReadable( ',', delim, end);
lth = delim.get() - begin.get();
pEA->info.usDataType = EAT_ASCII;
pEA->info.usDataLth = lth;
memcpy(pEA->data, begin.get(), lth);
pEA = (TYPEEA *)((char*)pEA + lth + sizeof(TYPEEA2));
begin = ++delim;
} while (--cnt);
// write the EA, then free the buffer
EAOP2 eaop2;
eaop2.fpGEA2List = 0;
eaop2.fpFEA2List = (PFEA2LIST)pBuf;
int rc = DosSetPathInfo(mWorkingPath.get(), FIL_QUERYEASIZE,
&eaop2, sizeof(eaop2), 0);
NS_Free(pBuf);
if (rc)
return ConvertOS2Error(rc);
return NS_OK;
}
//-----------------------------------------------------------------------------
// this struct combines an FEA2LIST, an FEA2, plus additional fields
// needed to write a .SUBJECT EA in the correct EAT_ASCII format;
#pragma pack(1)
typedef struct _SUBJEA {
struct {
ULONG ulcbList;
ULONG uloNextEntryOffset;
BYTE bfEA;
BYTE bcbName;
USHORT uscbValue;
char chszName[sizeof(".SUBJECT")];
} hdr;
struct {
USHORT usEAType;
USHORT usDataLth;
} info;
char data[1];
} SUBJEA;
#pragma pack()
// saves the file's source URI in its .SUBJECT extended attribute
NS_IMETHODIMP
nsLocalFile::SetFileSource(const nsACString& aURI)
{
if (aURI.IsEmpty())
return NS_ERROR_FAILURE;
// this includes an extra character for the spec's trailing null
uint32_t lth = sizeof(SUBJEA) + aURI.Length();
char * pBuf = (char*)NS_Alloc(lth);
if (!pBuf)
return NS_ERROR_OUT_OF_MEMORY;
SUBJEA *pEA = (SUBJEA *)pBuf;
// the trailing null doesn't get saved, so don't include it in the size
pEA->hdr.ulcbList = lth - 1;
pEA->hdr.uloNextEntryOffset = 0;
pEA->hdr.bfEA = 0;
pEA->hdr.bcbName = sizeof(".SUBJECT") - 1;
pEA->hdr.uscbValue = sizeof(pEA->info) + aURI.Length();
strcpy(pEA->hdr.chszName, ".SUBJECT");
pEA->info.usEAType = EAT_ASCII;
pEA->info.usDataLth = aURI.Length();
strcpy(pEA->data, PromiseFlatCString(aURI).get());
// write the EA, then free the buffer
EAOP2 eaop2;
eaop2.fpGEA2List = 0;
eaop2.fpFEA2List = (PFEA2LIST)pEA;
int rc = DosSetPathInfo(mWorkingPath.get(), FIL_QUERYEASIZE,
&eaop2, sizeof(eaop2), 0);
NS_Free(pBuf);
if (rc)
return ConvertOS2Error(rc);
return NS_OK;
}
//-----------------------------------------------------------------------------
nsresult
nsLocalFile::CopySingleFile(nsIFile *sourceFile, nsIFile *destParent,
const nsACString &newName, bool move)
{
nsresult rv;
nsAutoCString filePath;
nsAutoCString destPath;
destParent->GetNativeTarget(destPath);
destPath.Append("\\");
if (newName.IsEmpty())
{
nsAutoCString aFileName;
sourceFile->GetNativeLeafName(aFileName);
destPath.Append(aFileName);
}
else
{
destPath.Append(newName);
}
rv = sourceFile->GetNativePath(filePath);
if (NS_FAILED(rv))
return rv;
APIRET rc = NO_ERROR;
if (move)
rc = DosMove(filePath.get(), (PSZ)const_cast<char*>(destPath.get()));
if (!move || rc == ERROR_NOT_SAME_DEVICE || rc == ERROR_ACCESS_DENIED)
{
// will get an error if the destination and source files aren't on
// the same drive. "MoveFile()" on Windows will go ahead and move
// the file without error, so we need to do the same IBM-AKR
do {
rc = DosCopy(filePath.get(), (PSZ)const_cast<char*>(destPath.get()), DCPY_EXISTING);
if (rc == ERROR_TOO_MANY_OPEN_FILES) {
ULONG CurMaxFH = 0;
LONG ReqCount = 20;
APIRET rc2;
rc2 = DosSetRelMaxFH(&ReqCount, &CurMaxFH);
if (rc2 != NO_ERROR)
break;
}
} while (rc == ERROR_TOO_MANY_OPEN_FILES);
// WSOD2 HACK - NETWORK_ACCESS_DENIED
if (rc == 65)
{
CHAR achProgram[CCHMAXPATH]; // buffer for program name, parameters
RESULTCODES rescResults; // buffer for results of dosexecpgm
strcpy(achProgram, "CMD.EXE /C ");
strcat(achProgram, """COPY ");
strcat(achProgram, filePath.get());
strcat(achProgram, " ");
strcat(achProgram, (PSZ)const_cast<char*>(destPath.get()));
strcat(achProgram, """");
achProgram[strlen(achProgram) + 1] = '\0';
achProgram[7] = '\0';
DosExecPgm(NULL, 0,
EXEC_SYNC, achProgram, (PSZ)NULL,
&rescResults, achProgram);
rc = 0; // Assume it worked
} // rc == 65
// moving the file is supposed to act like a rename, so delete the
// original file if we got this far without error
if(move && (rc == NO_ERROR))
DosDelete( filePath.get());
} // !move or ERROR
if (rc)
rv = ConvertOS2Error(rc);
return rv;
}
nsresult
nsLocalFile::CopyMove(nsIFile *aParentDir, const nsACString &newName, bool move)
{
// Check we are correctly initialized.
CHECK_mWorkingPath();
nsCOMPtr<nsIFile> newParentDir = aParentDir;
nsresult rv = Stat();
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.
bool exists;
newParentDir->Exists(&exists);
if (!exists)
{
rv = newParentDir->Create(DIRECTORY_TYPE, 0644); // TODO, what permissions should we use
if (NS_FAILED(rv))
return rv;
}
else
{
bool isDir;
newParentDir->IsDirectory(&isDir);
if (!isDir)
{
return NS_ERROR_FILE_DESTINATION_NOT_DIR;
}
}
// Try different ways to move/copy files/directories
bool done = false;
bool isDir;
IsDirectory(&isDir);
// Try to move the file or directory, or try to copy a single file
if (move || !isDir)
{
// when moving things, first try to just MoveFile it,
// even if it is a directory
rv = CopySingleFile(this, newParentDir, newName, 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;
nsAutoCString allocatedNewName;
if (newName.IsEmpty())
{
GetNativeLeafName(allocatedNewName);
}
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
bool isWritable;
target->IsWritable(&isWritable);
if (!isWritable)
return NS_ERROR_FILE_ACCESS_DENIED;
nsCOMPtr<nsISimpleEnumerator> targetIterator;
rv = target->GetDirectoryEntries(getter_AddRefs(targetIterator));
if (NS_FAILED(rv))
return rv;
bool more;
targetIterator->HasMoreElements(&more);
// return error if target directory is not empty
if (more)
return NS_ERROR_FILE_DIR_NOT_EMPTY;
}
nsDirEnumerator dirEnum;
rv = dirEnum.Init(this);
if (NS_FAILED(rv)) {
NS_WARNING("dirEnum initialization failed");
return rv;
}
bool 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)
{
if (move)
{
rv = file->MoveToNative(target, EmptyCString());
NS_ENSURE_SUCCESS(rv,rv);
}
else
{
rv = file->CopyToNative(target, EmptyCString());
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(false); // recursive
NS_ENSURE_SUCCESS(rv,rv);
}
}
// If we moved, we want to adjust this.
if (move)
{
MakeDirty();
nsAutoCString newParentPath;
newParentDir->GetNativePath(newParentPath);
if (newParentPath.IsEmpty())
return NS_ERROR_FAILURE;
if (newName.IsEmpty())
{
nsAutoCString 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, false);
}
NS_IMETHODIMP
nsLocalFile::CopyToFollowingLinksNative(nsIFile *newParentDir, const nsACString &newName)
{
return CopyMove(newParentDir, newName, false);
}
NS_IMETHODIMP
nsLocalFile::MoveToNative(nsIFile *newParentDir, const nsACString &newName)
{
return CopyMove(newParentDir, newName, true);
}
NS_IMETHODIMP
nsLocalFile::Load(PRLibrary * *_retval)
{
// Check we are correctly initialized.
CHECK_mWorkingPath();
bool isFile;
nsresult rv = IsFile(&isFile);
if (NS_FAILED(rv))
return rv;
if (!isFile)
return NS_ERROR_FILE_IS_DIRECTORY;
#ifdef NS_BUILD_REFCNT_LOGGING
nsTraceRefcntImpl::SetActivityIsLegal(false);
#endif
*_retval = PR_LoadLibrary(mWorkingPath.get());
#ifdef NS_BUILD_REFCNT_LOGGING
nsTraceRefcntImpl::SetActivityIsLegal(true);
#endif
if (*_retval)
return NS_OK;
return NS_ERROR_NULL_POINTER;
}
NS_IMETHODIMP
nsLocalFile::Remove(bool recursive)
{
// Check we are correctly initialized.
CHECK_mWorkingPath();
bool isDir = false;
nsresult 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;
bool 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 = rmdir(mWorkingPath.get());
}
else
{
rv = remove(mWorkingPath.get());
}
// fixup error code if necessary...
if (rv == (nsresult)-1)
rv = NSRESULT_FOR_ERRNO();
MakeDirty();
return rv;
}
NS_IMETHODIMP
nsLocalFile::GetLastModifiedTime(PRTime *aLastModifiedTime)
{
// Check we are correctly initialized.
CHECK_mWorkingPath();
NS_ENSURE_ARG(aLastModifiedTime);
*aLastModifiedTime = 0;
nsresult rv = Stat();
if (NS_FAILED(rv))
return rv;
// microseconds -> milliseconds
*aLastModifiedTime = mFileInfo64.modifyTime / PR_USEC_PER_MSEC;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetLastModifiedTimeOfLink(PRTime *aLastModifiedTime)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsLocalFile::SetLastModifiedTime(PRTime aLastModifiedTime)
{
// Check we are correctly initialized.
CHECK_mWorkingPath();
return nsLocalFile::SetModDate(aLastModifiedTime);
}
NS_IMETHODIMP
nsLocalFile::SetLastModifiedTimeOfLink(PRTime aLastModifiedTime)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
nsresult
nsLocalFile::SetModDate(PRTime aLastModifiedTime)
{
nsresult rv = Stat();
if (NS_FAILED(rv))
return rv;
PRExplodedTime pret;
FILESTATUS3 pathInfo;
// Level 1 info
rv = DosQueryPathInfo(mWorkingPath.get(), FIL_STANDARD,
&pathInfo, sizeof(pathInfo));
if (NS_FAILED(rv))
{
rv = ConvertOS2Error(rv);
return rv;
}
// PR_ExplodeTime expects usecs...
PR_ExplodeTime(aLastModifiedTime * PR_USEC_PER_MSEC, PR_LocalTimeParameters, &pret);
// fdateLastWrite.year is based off of 1980
if (pret.tm_year >= 1980)
pathInfo.fdateLastWrite.year = pret.tm_year-1980;
else
pathInfo.fdateLastWrite.year = pret.tm_year;
// Convert start offset -- OS/2: Jan=1; NSPR: Jan=0
pathInfo.fdateLastWrite.month = pret.tm_month + 1;
pathInfo.fdateLastWrite.day = pret.tm_mday;
pathInfo.ftimeLastWrite.hours = pret.tm_hour;
pathInfo.ftimeLastWrite.minutes = pret.tm_min;
pathInfo.ftimeLastWrite.twosecs = pret.tm_sec / 2;
rv = DosSetPathInfo(mWorkingPath.get(), FIL_STANDARD,
&pathInfo, sizeof(pathInfo), 0UL);
if (NS_FAILED(rv))
return rv;
MakeDirty();
return rv;
}
NS_IMETHODIMP
nsLocalFile::GetPermissions(uint32_t *aPermissions)
{
NS_ENSURE_ARG(aPermissions);
nsresult rv = Stat();
if (NS_FAILED(rv))
return rv;
bool isWritable, isExecutable;
IsWritable(&isWritable);
IsExecutable(&isExecutable);
*aPermissions = PR_IRUSR|PR_IRGRP|PR_IROTH; // all read
if (isWritable)
*aPermissions |= PR_IWUSR|PR_IWGRP|PR_IWOTH; // all write
if (isExecutable)
*aPermissions |= PR_IXUSR|PR_IXGRP|PR_IXOTH; // all execute
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetPermissionsOfLink(uint32_t *aPermissionsOfLink)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
// the only Unix-style permission OS/2 knows is whether a file is
// writable; as a matter of policy, a browser shouldn't be able
// to change any of the other DOS-style attributes; to enforce
// this, we use DosSetPathInfo() rather than chmod()
NS_IMETHODIMP
nsLocalFile::SetPermissions(uint32_t aPermissions)
{
// Check we are correctly initialized.
CHECK_mWorkingPath();
nsresult rv = Stat();
if (NS_FAILED(rv))
return rv;
APIRET rc;
FILESTATUS3 pathInfo;
// Level 1 info
rc = DosQueryPathInfo(mWorkingPath.get(), FIL_STANDARD,
&pathInfo, sizeof(pathInfo));
if (rc != NO_ERROR)
return ConvertOS2Error(rc);
ULONG attr = 0;
if (!(aPermissions & (PR_IWUSR|PR_IWGRP|PR_IWOTH)))
attr = FILE_READONLY;
if (attr == (pathInfo.attrFile & FILE_READONLY))
return NS_OK;
pathInfo.attrFile ^= FILE_READONLY;
rc = DosSetPathInfo(mWorkingPath.get(), FIL_STANDARD,
&pathInfo, sizeof(pathInfo), 0UL);
if (rc != NO_ERROR)
return ConvertOS2Error(rc);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::SetPermissionsOfLink(uint32_t aPermissions)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsLocalFile::GetFileSize(int64_t *aFileSize)
{
// Check we are correctly initialized.
CHECK_mWorkingPath();
NS_ENSURE_ARG(aFileSize);
*aFileSize = 0;
nsresult rv = Stat();
if (NS_FAILED(rv))
return rv;
*aFileSize = mFileInfo64.size;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetFileSizeOfLink(int64_t *aFileSize)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsLocalFile::SetFileSize(int64_t aFileSize)
{
nsresult rv = Stat();
if (NS_FAILED(rv))
return rv;
APIRET rc;
HFILE hFile;
ULONG actionTaken;
rc = DosOpen(mWorkingPath.get(),
&hFile,
&actionTaken,
0,
FILE_NORMAL,
OPEN_ACTION_FAIL_IF_NEW | OPEN_ACTION_OPEN_IF_EXISTS,
OPEN_SHARE_DENYREADWRITE | OPEN_ACCESS_READWRITE,
NULL);
if (rc != NO_ERROR)
{
MakeDirty();
return NS_ERROR_FAILURE;
}
// Seek to new, desired end of file
int32_t hi, lo;
myLL_L2II(aFileSize, &hi, &lo );
rc = DosSetFileSize(hFile, lo);
DosClose(hFile);
MakeDirty();
if (rc != NO_ERROR)
return NS_ERROR_FAILURE;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetDiskSpaceAvailable(int64_t *aDiskSpaceAvailable)
{
// Check we are correctly initialized.
CHECK_mWorkingPath();
NS_ENSURE_ARG(aDiskSpaceAvailable);
*aDiskSpaceAvailable = 0;
nsresult rv = Stat();
if (NS_FAILED(rv))
return rv;
ULONG ulDriveNo = toupper(mWorkingPath.CharAt(0)) + 1 - 'A';
FSALLOCATE fsAllocate;
APIRET rc = DosQueryFSInfo(ulDriveNo,
FSIL_ALLOC,
&fsAllocate,
sizeof(fsAllocate));
if (rc != NO_ERROR)
return NS_ERROR_FAILURE;
*aDiskSpaceAvailable = fsAllocate.cUnitAvail;
*aDiskSpaceAvailable *= fsAllocate.cSectorUnit;
*aDiskSpaceAvailable *= fsAllocate.cbSector;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetParent(nsIFile * *aParent)
{
// Check we are correctly initialized.
CHECK_mWorkingPath();
NS_ENSURE_ARG_POINTER(aParent);
nsAutoCString parentPath(mWorkingPath);
// cannot use nsCString::RFindChar() due to 0x5c problem
int32_t offset = (int32_t) (_mbsrchr((const unsigned char *) parentPath.get(), '\\')
- (const unsigned char *) parentPath.get());
// 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 < 0)
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
if (offset == 1 && parentPath[0] == '\\') {
aParent = nullptr;
return NS_OK;
}
if (offset > 0)
parentPath.Truncate(offset);
else
parentPath.AssignLiteral("\\\\.");
nsCOMPtr<nsIFile> localFile;
nsresult rv = NS_NewNativeLocalFile(parentPath, false, getter_AddRefs(localFile));
if(NS_SUCCEEDED(rv) && localFile)
{
return CallQueryInterface(localFile, aParent);
}
return rv;
}
NS_IMETHODIMP
nsLocalFile::Exists(bool *_retval)
{
// Check we are correctly initialized.
CHECK_mWorkingPath();
NS_ENSURE_ARG(_retval);
*_retval = false;
MakeDirty();
nsresult rv = Stat();
*_retval = NS_SUCCEEDED(rv);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsWritable(bool *_retval)
{
// Check we are correctly initialized.
CHECK_mWorkingPath();
NS_ENSURE_ARG(_retval);
*_retval = false;
nsresult rv = Stat();
if (NS_FAILED(rv))
return rv;
APIRET rc;
FILESTATUS3 pathInfo;
// Level 1 info
rc = DosQueryPathInfo(mWorkingPath.get(), FIL_STANDARD,
&pathInfo, sizeof(pathInfo));
if (rc != NO_ERROR)
{
rc = ConvertOS2Error(rc);
return rc;
}
// on OS/2, unlike Windows, directories on writable media
// can not be assigned a readonly attribute
*_retval = !((pathInfo.attrFile & FILE_READONLY) != 0);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsReadable(bool *_retval)
{
// Check we are correctly initialized.
CHECK_mWorkingPath();
NS_ENSURE_ARG(_retval);
*_retval = false;
nsresult rv = Stat();
if (NS_FAILED(rv))
return rv;
*_retval = true;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsExecutable(bool *_retval)
{
// Check we are correctly initialized.
CHECK_mWorkingPath();
NS_ENSURE_ARG(_retval);
*_retval = false;
nsresult rv = Stat();
if (NS_FAILED(rv))
return rv;
// no need to bother if this isn't a file
bool isFile;
rv = IsFile(&isFile);
if (NS_FAILED(rv) || !isFile)
return rv;
nsAutoCString path;
GetNativeTarget(path);
// get the filename, including the leading backslash
const char* leaf = (const char*) _mbsrchr((const unsigned char*)path.get(), '\\');
if (!leaf)
return NS_OK;
// eliminate trailing dots & spaces in a DBCS-aware manner
// XXX shouldn't this have been done when the path was set?
char* pathEnd = WinPrevChar(0, 0, 0, leaf, strchr(leaf, 0));
while (pathEnd > leaf)
{
if (*pathEnd != ' ' && *pathEnd != '.')
break;
*pathEnd = 0;
pathEnd = WinPrevChar(0, 0, 0, leaf, pathEnd);
}
if (pathEnd == leaf)
return NS_OK;
// get the extension, including the dot
char* ext = (char*) _mbsrchr((const unsigned char*)leaf, '.');
if (!ext)
return NS_OK;
if (stricmp(ext, ".exe") == 0 ||
stricmp(ext, ".cmd") == 0 ||
stricmp(ext, ".com") == 0 ||
stricmp(ext, ".bat") == 0)
*_retval = true;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsDirectory(bool *_retval)
{
NS_ENSURE_ARG(_retval);
*_retval = false;
nsresult rv = Stat();
if (NS_FAILED(rv))
return rv;
*_retval = (mFileInfo64.type == PR_FILE_DIRECTORY);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsFile(bool *_retval)
{
NS_ENSURE_ARG(_retval);
*_retval = false;
nsresult rv = Stat();
if (NS_FAILED(rv))
return rv;
*_retval = (mFileInfo64.type == PR_FILE_FILE);
return rv;
}
NS_IMETHODIMP
nsLocalFile::IsHidden(bool *_retval)
{
NS_ENSURE_ARG(_retval);
*_retval = false;
nsresult rv = Stat();
if (NS_FAILED(rv))
return rv;
APIRET rc;
FILESTATUS3 pathInfo;
// Level 1 info
rc = DosQueryPathInfo(mWorkingPath.get(), FIL_STANDARD,
&pathInfo, sizeof(pathInfo));
if (rc != NO_ERROR)
{
rc = ConvertOS2Error(rc);
return rc;
}
*_retval = ((pathInfo.attrFile & FILE_HIDDEN) != 0);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsSymlink(bool *_retval)
{
// Check we are correctly initialized.
CHECK_mWorkingPath();
NS_ENSURE_ARG_POINTER(_retval);
// No Symlinks on OS/2
*_retval = false;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsSpecial(bool *_retval)
{
NS_ENSURE_ARG(_retval);
// when implemented, IsSpecial will be used for WPS objects
*_retval = false;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::Equals(nsIFile *inFile, bool *_retval)
{
NS_ENSURE_ARG(inFile);
NS_ENSURE_ARG(_retval);
nsAutoCString inFilePath;
inFile->GetNativePath(inFilePath);
*_retval = inFilePath.Equals(mWorkingPath);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::Contains(nsIFile *inFile, bool recur, bool *_retval)
{
// Check we are correctly initialized.
CHECK_mWorkingPath();
*_retval = false;
nsAutoCString myFilePath;
if ( NS_FAILED(GetNativeTarget(myFilePath)))
GetNativePath(myFilePath);
int32_t myFilePathLen = myFilePath.Length();
nsAutoCString inFilePath;
if ( NS_FAILED(inFile->GetNativeTarget(inFilePath)))
inFile->GetNativePath(inFilePath);
if ( strnicmp( myFilePath.get(), inFilePath.get(), myFilePathLen) == 0)
{
// now make sure that the |inFile|'s path has a trailing
// separator.
if (inFilePath[myFilePathLen] == '\\')
{
*_retval = true;
}
}
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetNativeTarget(nsACString &_retval)
{
// Check we are correctly initialized.
CHECK_mWorkingPath();
_retval = mWorkingPath;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetFollowLinks(bool *aFollowLinks)
{
NS_ENSURE_ARG(aFollowLinks);
*aFollowLinks = false;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::SetFollowLinks(bool aFollowLinks)
{
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetDirectoryEntries(nsISimpleEnumerator * *entries)
{
NS_ENSURE_ARG(entries);
nsresult rv;
*entries = nullptr;
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;
}
bool isDir;
rv = IsDirectory(&isDir);
if (NS_FAILED(rv))
return rv;
if (!isDir)
return NS_ERROR_FILE_NOT_DIRECTORY;
nsDirEnumerator* dirEnum = new nsDirEnumerator();
if (dirEnum == nullptr)
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);
}
#ifndef OPEN_DEFAULT
#define OPEN_DEFAULT 0
#define OPEN_CONTENTS 1
#endif
NS_IMETHODIMP
nsLocalFile::Reveal()
{
bool isDirectory = false;
nsAutoCString path;
IsDirectory(&isDirectory);
if (isDirectory)
{
GetNativePath(path);
}
else
{
nsCOMPtr<nsIFile> parent;
GetParent(getter_AddRefs(parent));
if (parent)
parent->GetNativePath(path);
}
HOBJECT hobject = WinQueryObject(path.get());
WinSetFocus(HWND_DESKTOP, HWND_DESKTOP);
WinOpenObject(hobject, OPEN_DEFAULT, TRUE);
// we don't care if it succeeded or failed.
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::Launch()
{
HOBJECT hobject = WinQueryObject(mWorkingPath.get());
WinSetFocus(HWND_DESKTOP, HWND_DESKTOP);
WinOpenObject(hobject, OPEN_DEFAULT, TRUE);
// we don't care if it succeeded or failed.
return NS_OK;
}
nsresult
NS_NewNativeLocalFile(const nsACString &path, bool followLinks, nsIFile* *result)
{
nsLocalFile* file = new nsLocalFile();
if (file == nullptr)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(file);
if (!path.IsEmpty()) {
nsresult rv = file->InitWithNativePath(path);
if (NS_FAILED(rv)) {
NS_RELEASE(file);
return rv;
}
}
*result = file;
return NS_OK;
}
//-----------------------------------------------------------------------------
// UCS2 interface
//-----------------------------------------------------------------------------
NS_IMETHODIMP
nsLocalFile::InitWithPath(const nsAString &filePath)
{
if (filePath.IsEmpty())
return InitWithNativePath(EmptyCString());
nsAutoCString tmp;
nsresult rv = NS_CopyUnicodeToNative(filePath, tmp);
if (NS_SUCCEEDED(rv))
return InitWithNativePath(tmp);
return rv;
}
NS_IMETHODIMP
nsLocalFile::Append(const nsAString &node)
{
if (node.IsEmpty())
return NS_OK;
nsAutoCString tmp;
nsresult rv = NS_CopyUnicodeToNative(node, tmp);
if (NS_SUCCEEDED(rv))
return AppendNative(tmp);
return rv;
}
NS_IMETHODIMP
nsLocalFile::AppendRelativePath(const nsAString &node)
{
if (node.IsEmpty())
return NS_OK;
nsAutoCString tmp;
nsresult rv = NS_CopyUnicodeToNative(node, tmp);
if (NS_SUCCEEDED(rv))
return AppendRelativeNativePath(tmp);
return rv;
}
NS_IMETHODIMP
nsLocalFile::GetLeafName(nsAString &aLeafName)
{
nsAutoCString tmp;
nsresult rv = GetNativeLeafName(tmp);
if (NS_SUCCEEDED(rv))
rv = NS_CopyNativeToUnicode(tmp, aLeafName);
return rv;
}
NS_IMETHODIMP
nsLocalFile::SetLeafName(const nsAString &aLeafName)
{
if (aLeafName.IsEmpty())
return SetNativeLeafName(EmptyCString());
nsAutoCString tmp;
nsresult rv = NS_CopyUnicodeToNative(aLeafName, tmp);
if (NS_SUCCEEDED(rv))
return SetNativeLeafName(tmp);
return rv;
}
NS_IMETHODIMP
nsLocalFile::GetPath(nsAString &_retval)
{
return NS_CopyNativeToUnicode(mWorkingPath, _retval);
}
NS_IMETHODIMP
nsLocalFile::CopyTo(nsIFile *newParentDir, const nsAString &newName)
{
if (newName.IsEmpty())
return CopyToNative(newParentDir, EmptyCString());
nsAutoCString tmp;
nsresult rv = NS_CopyUnicodeToNative(newName, tmp);
if (NS_SUCCEEDED(rv))
return CopyToNative(newParentDir, tmp);
return rv;
}
NS_IMETHODIMP
nsLocalFile::CopyToFollowingLinks(nsIFile *newParentDir, const nsAString &newName)
{
if (newName.IsEmpty())
return CopyToFollowingLinksNative(newParentDir, EmptyCString());
nsAutoCString tmp;
nsresult rv = NS_CopyUnicodeToNative(newName, tmp);
if (NS_SUCCEEDED(rv))
return CopyToFollowingLinksNative(newParentDir, tmp);
return rv;
}
NS_IMETHODIMP
nsLocalFile::MoveTo(nsIFile *newParentDir, const nsAString &newName)
{
if (newName.IsEmpty())
return MoveToNative(newParentDir, EmptyCString());
nsAutoCString tmp;
nsresult rv = NS_CopyUnicodeToNative(newName, tmp);
if (NS_SUCCEEDED(rv))
return MoveToNative(newParentDir, tmp);
return rv;
}
NS_IMETHODIMP
nsLocalFile::GetTarget(nsAString &_retval)
{
nsAutoCString tmp;
nsresult rv = GetNativeTarget(tmp);
if (NS_SUCCEEDED(rv))
rv = NS_CopyNativeToUnicode(tmp, _retval);
return rv;
}
// nsIHashable
NS_IMETHODIMP
nsLocalFile::Equals(nsIHashable* aOther, bool *aResult)
{
nsCOMPtr<nsIFile> otherfile(do_QueryInterface(aOther));
if (!otherfile) {
*aResult = false;
return NS_OK;
}
return Equals(otherfile, aResult);
}
NS_IMETHODIMP
nsLocalFile::GetHashCode(uint32_t *aResult)
{
*aResult = HashString(mWorkingPath);
return NS_OK;
}
nsresult
NS_NewLocalFile(const nsAString &path, bool followLinks, nsIFile* *result)
{
nsAutoCString buf;
nsresult rv = NS_CopyUnicodeToNative(path, buf);
if (NS_FAILED(rv)) {
*result = nullptr;
return rv;
}
return NS_NewNativeLocalFile(buf, followLinks, result);
}
//-----------------------------------------------------------------------------
// nsLocalFile <static members>
//-----------------------------------------------------------------------------
void
nsLocalFile::GlobalInit()
{
}
void
nsLocalFile::GlobalShutdown()
{
}
//-----------------------------------------------------------------------------
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