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gecko-dev/xpcom/io/nsLocalFileUnix.cpp

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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/. */
/**
* Implementation of nsIFile for "unixy" systems.
*/
#include "mozilla/Util.h"
#include "mozilla/Attributes.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <utime.h>
#include <dirent.h>
#include <ctype.h>
#include <locale.h>
#if defined(VMS)
#include <fabdef.h>
#endif
#if defined(HAVE_SYS_QUOTA_H) && defined(HAVE_LINUX_QUOTA_H)
#define USE_LINUX_QUOTACTL
#include <sys/quota.h>
#endif
#if (MOZ_PLATFORM_MAEMO == 6)
#include <QUrl>
#include <QString>
#if (MOZ_ENABLE_CONTENTACTION)
#include <contentaction/contentaction.h>
#endif
#endif
#include "xpcom-private.h"
#include "nsDirectoryServiceDefs.h"
#include "nsCRT.h"
#include "nsCOMPtr.h"
#include "nsMemory.h"
#include "nsIFile.h"
#include "nsString.h"
#include "nsReadableUtils.h"
#include "nsLocalFile.h"
#include "nsIComponentManager.h"
#include "nsXPIDLString.h"
#include "prproces.h"
#include "nsIDirectoryEnumerator.h"
#include "nsISimpleEnumerator.h"
#include "private/pprio.h"
#ifdef MOZ_WIDGET_GTK
#include "nsIGIOService.h"
#include "nsIGnomeVFSService.h"
#endif
#ifdef MOZ_WIDGET_COCOA
#include <Carbon/Carbon.h>
#include "CocoaFileUtils.h"
#include "prmem.h"
#include "plbase64.h"
static nsresult MacErrorMapper(OSErr inErr);
#endif
#if (MOZ_PLATFORM_MAEMO == 5)
#include <glib.h>
#include <hildon-uri.h>
#include <hildon-mime.h>
#include <libosso.h>
#endif
#ifdef MOZ_WIDGET_ANDROID
#include "AndroidBridge.h"
#include "nsIMIMEService.h"
#include <linux/magic.h>
#endif
#include "nsNativeCharsetUtils.h"
#include "nsTraceRefcntImpl.h"
#include "nsHashKeys.h"
using namespace mozilla;
#define ENSURE_STAT_CACHE() \
PR_BEGIN_MACRO \
if (!FillStatCache()) \
return NSRESULT_FOR_ERRNO(); \
PR_END_MACRO
#define CHECK_mPath() \
PR_BEGIN_MACRO \
if (mPath.IsEmpty()) \
return NS_ERROR_NOT_INITIALIZED; \
PR_END_MACRO
/* directory enumerator */
class
nsDirEnumeratorUnix MOZ_FINAL : public nsISimpleEnumerator,
public nsIDirectoryEnumerator
{
public:
nsDirEnumeratorUnix();
// nsISupports interface
NS_DECL_ISUPPORTS
// nsISimpleEnumerator interface
NS_DECL_NSISIMPLEENUMERATOR
// nsIDirectoryEnumerator interface
NS_DECL_NSIDIRECTORYENUMERATOR
NS_IMETHOD Init(nsLocalFile *parent, bool ignored);
private:
~nsDirEnumeratorUnix();
protected:
NS_IMETHOD GetNextEntry();
DIR *mDir;
struct dirent *mEntry;
nsCString mParentPath;
};
nsDirEnumeratorUnix::nsDirEnumeratorUnix() :
mDir(nullptr),
mEntry(nullptr)
{
}
nsDirEnumeratorUnix::~nsDirEnumeratorUnix()
{
Close();
}
NS_IMPL_ISUPPORTS2(nsDirEnumeratorUnix, nsISimpleEnumerator, nsIDirectoryEnumerator)
NS_IMETHODIMP
nsDirEnumeratorUnix::Init(nsLocalFile *parent, bool resolveSymlinks /*ignored*/)
{
nsAutoCString dirPath;
if (NS_FAILED(parent->GetNativePath(dirPath)) ||
dirPath.IsEmpty()) {
return NS_ERROR_FILE_INVALID_PATH;
}
if (NS_FAILED(parent->GetNativePath(mParentPath)))
return NS_ERROR_FAILURE;
mDir = opendir(dirPath.get());
if (!mDir)
return NSRESULT_FOR_ERRNO();
return GetNextEntry();
}
NS_IMETHODIMP
nsDirEnumeratorUnix::HasMoreElements(bool *result)
{
*result = mDir && mEntry;
if (!*result)
Close();
return NS_OK;
}
NS_IMETHODIMP
nsDirEnumeratorUnix::GetNext(nsISupports **_retval)
{
nsCOMPtr<nsIFile> file;
nsresult rv = GetNextFile(getter_AddRefs(file));
if (NS_FAILED(rv))
return rv;
NS_IF_ADDREF(*_retval = file);
return NS_OK;
}
NS_IMETHODIMP
nsDirEnumeratorUnix::GetNextEntry()
{
do {
errno = 0;
mEntry = readdir(mDir);
// end of dir or error
if (!mEntry)
return NSRESULT_FOR_ERRNO();
// keep going past "." and ".."
} while (mEntry->d_name[0] == '.' &&
(mEntry->d_name[1] == '\0' || // .\0
(mEntry->d_name[1] == '.' &&
mEntry->d_name[2] == '\0'))); // ..\0
return NS_OK;
}
NS_IMETHODIMP
nsDirEnumeratorUnix::GetNextFile(nsIFile **_retval)
{
nsresult rv;
if (!mDir || !mEntry) {
*_retval = nullptr;
return NS_OK;
}
nsCOMPtr<nsIFile> file = new nsLocalFile();
if (!file)
return NS_ERROR_OUT_OF_MEMORY;
if (NS_FAILED(rv = file->InitWithNativePath(mParentPath)) ||
NS_FAILED(rv = file->AppendNative(nsDependentCString(mEntry->d_name))))
return rv;
*_retval = file;
NS_ADDREF(*_retval);
return GetNextEntry();
}
NS_IMETHODIMP
nsDirEnumeratorUnix::Close()
{
if (mDir) {
closedir(mDir);
mDir = nullptr;
}
return NS_OK;
}
nsLocalFile::nsLocalFile()
{
}
nsLocalFile::nsLocalFile(const nsLocalFile& other)
: mPath(other.mPath)
{
}
#ifdef MOZ_WIDGET_COCOA
NS_IMPL_THREADSAFE_ISUPPORTS4(nsLocalFile,
nsILocalFileMac,
nsILocalFile,
nsIFile,
nsIHashable)
#else
NS_IMPL_THREADSAFE_ISUPPORTS3(nsLocalFile,
nsILocalFile,
nsIFile,
nsIHashable)
#endif
nsresult
nsLocalFile::nsLocalFileConstructor(nsISupports *outer,
const nsIID &aIID,
void **aInstancePtr)
{
NS_ENSURE_ARG_POINTER(aInstancePtr);
NS_ENSURE_NO_AGGREGATION(outer);
*aInstancePtr = nullptr;
nsCOMPtr<nsIFile> inst = new nsLocalFile();
if (!inst)
return NS_ERROR_OUT_OF_MEMORY;
return inst->QueryInterface(aIID, aInstancePtr);
}
bool
nsLocalFile::FillStatCache() {
if (STAT(mPath.get(), &mCachedStat) == -1) {
// try lstat it may be a symlink
if (LSTAT(mPath.get(), &mCachedStat) == -1) {
return false;
}
}
return true;
}
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)
{
if (filePath.Equals("~") || Substring(filePath, 0, 2).EqualsLiteral("~/")) {
nsCOMPtr<nsIFile> homeDir;
nsAutoCString homePath;
if (NS_FAILED(NS_GetSpecialDirectory(NS_OS_HOME_DIR,
getter_AddRefs(homeDir))) ||
NS_FAILED(homeDir->GetNativePath(homePath))) {
return NS_ERROR_FAILURE;
}
mPath = homePath;
if (filePath.Length() > 2)
mPath.Append(Substring(filePath, 1, filePath.Length() - 1));
} else {
if (filePath.IsEmpty() || filePath.First() != '/')
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
mPath = filePath;
}
// trim off trailing slashes
ssize_t len = mPath.Length();
while ((len > 1) && (mPath[len - 1] == '/'))
--len;
mPath.SetLength(len);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::CreateAllAncestors(uint32_t permissions)
{
// <jband> I promise to play nice
char *buffer = mPath.BeginWriting(),
*slashp = buffer;
#ifdef DEBUG_NSIFILE
fprintf(stderr, "nsIFile: before: %s\n", buffer);
#endif
while ((slashp = strchr(slashp + 1, '/'))) {
/*
* Sequences of '/' are equivalent to a single '/'.
*/
if (slashp[1] == '/')
continue;
/*
* If the path has a trailing slash, don't make the last component,
* because we'll get EEXIST in Create when we try to build the final
* component again, and it's easier to condition the logic here than
* there.
*/
if (slashp[1] == '\0')
break;
/* Temporarily NUL-terminate here */
*slashp = '\0';
#ifdef DEBUG_NSIFILE
fprintf(stderr, "nsIFile: mkdir(\"%s\")\n", buffer);
#endif
int mkdir_result = mkdir(buffer, permissions);
int mkdir_errno = errno;
if (mkdir_result == -1) {
/*
* Always set |errno| to EEXIST if the dir already exists
* (we have to do this here since the errno value is not consistent
* in all cases - various reasons like different platform,
* automounter-controlled dir, etc. can affect it (see bug 125489
* for details)).
*/
if (access(buffer, F_OK) == 0) {
mkdir_errno = EEXIST;
}
}
/* Put the / back before we (maybe) return */
*slashp = '/';
/*
* We could get EEXIST for an existing file -- not directory --
* with the name of one of our ancestors, but that's OK: we'll get
* ENOTDIR when we try to make the next component in the path,
* either here on back in Create, and error out appropriately.
*/
if (mkdir_result == -1 && mkdir_errno != EEXIST)
return nsresultForErrno(mkdir_errno);
}
#ifdef DEBUG_NSIFILE
fprintf(stderr, "nsIFile: after: %s\n", buffer);
#endif
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::OpenNSPRFileDesc(int32_t flags, int32_t mode, PRFileDesc **_retval)
{
*_retval = PR_Open(mPath.get(), flags, mode);
if (! *_retval)
return NS_ErrorAccordingToNSPR();
if (flags & DELETE_ON_CLOSE) {
PR_Delete(mPath.get());
}
#if defined(LINUX) && !defined(ANDROID)
if (flags & OS_READAHEAD) {
readahead(PR_FileDesc2NativeHandle(*_retval), 0, 0);
}
#endif
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::OpenANSIFileDesc(const char *mode, FILE **_retval)
{
*_retval = fopen(mPath.get(), mode);
if (! *_retval)
return NS_ERROR_FAILURE;
return NS_OK;
}
static int
do_create(const char *path, int flags, mode_t mode, PRFileDesc **_retval)
{
*_retval = PR_Open(path, flags, mode);
return *_retval ? 0 : -1;
}
static int
do_mkdir(const char *path, int flags, mode_t mode, PRFileDesc **_retval)
{
*_retval = nullptr;
return mkdir(path, mode);
}
nsresult
nsLocalFile::CreateAndKeepOpen(uint32_t type, int flags,
uint32_t permissions, PRFileDesc **_retval)
{
if (type != NORMAL_FILE_TYPE && type != DIRECTORY_TYPE)
return NS_ERROR_FILE_UNKNOWN_TYPE;
int result;
int (*createFunc)(const char *, int, mode_t, PRFileDesc **) =
(type == NORMAL_FILE_TYPE) ? do_create : do_mkdir;
result = createFunc(mPath.get(), flags, permissions, _retval);
if (result == -1 && errno == ENOENT) {
/*
* If we failed because of missing ancestor components, try to create
* them and then retry the original creation.
*
* Ancestor directories get the same permissions as the file we're
* creating, with the X bit set for each of (user,group,other) with
* an R bit in the original permissions. If you want to do anything
* fancy like setgid or sticky bits, do it by hand.
*/
int dirperm = permissions;
if (permissions & S_IRUSR)
dirperm |= S_IXUSR;
if (permissions & S_IRGRP)
dirperm |= S_IXGRP;
if (permissions & S_IROTH)
dirperm |= S_IXOTH;
#ifdef DEBUG_NSIFILE
fprintf(stderr, "nsIFile: perm = %o, dirperm = %o\n", permissions,
dirperm);
#endif
if (NS_FAILED(CreateAllAncestors(dirperm)))
return NS_ERROR_FAILURE;
#ifdef DEBUG_NSIFILE
fprintf(stderr, "nsIFile: Create(\"%s\") again\n", mPath.get());
#endif
result = createFunc(mPath.get(), flags, permissions, _retval);
}
return NSRESULT_FOR_RETURN(result);
}
NS_IMETHODIMP
nsLocalFile::Create(uint32_t type, uint32_t permissions)
{
PRFileDesc *junk = nullptr;
nsresult rv = CreateAndKeepOpen(type,
PR_WRONLY | PR_CREATE_FILE | PR_TRUNCATE |
PR_EXCL,
permissions,
&junk);
if (junk)
PR_Close(junk);
return rv;
}
NS_IMETHODIMP
nsLocalFile::AppendNative(const nsACString &fragment)
{
if (fragment.IsEmpty())
return NS_OK;
// only one component of path can be appended
nsACString::const_iterator begin, end;
if (FindCharInReadable('/', fragment.BeginReading(begin),
fragment.EndReading(end)))
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
return AppendRelativeNativePath(fragment);
}
NS_IMETHODIMP
nsLocalFile::AppendRelativeNativePath(const nsACString &fragment)
{
if (fragment.IsEmpty())
return NS_OK;
// No leading '/'
if (fragment.First() == '/')
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
if (mPath.EqualsLiteral("/"))
mPath.Append(fragment);
else
mPath.Append(NS_LITERAL_CSTRING("/") + fragment);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::Normalize()
{
char resolved_path[PATH_MAX] = "";
char *resolved_path_ptr = nullptr;
resolved_path_ptr = realpath(mPath.get(), resolved_path);
// if there is an error, the return is null.
if (!resolved_path_ptr)
return NSRESULT_FOR_ERRNO();
mPath = resolved_path;
return NS_OK;
}
void
nsLocalFile::LocateNativeLeafName(nsACString::const_iterator &begin,
nsACString::const_iterator &end)
{
// XXX perhaps we should cache this??
mPath.BeginReading(begin);
mPath.EndReading(end);
nsACString::const_iterator it = end;
nsACString::const_iterator stop = begin;
--stop;
while (--it != stop) {
if (*it == '/') {
begin = ++it;
return;
}
}
// else, the entire path is the leaf name (which means this
// isn't an absolute path... unexpected??)
}
NS_IMETHODIMP
nsLocalFile::GetNativeLeafName(nsACString &aLeafName)
{
nsACString::const_iterator begin, end;
LocateNativeLeafName(begin, end);
aLeafName = Substring(begin, end);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::SetNativeLeafName(const nsACString &aLeafName)
{
nsACString::const_iterator begin, end;
LocateNativeLeafName(begin, end);
mPath.Replace(begin.get() - mPath.get(), Distance(begin, end), aLeafName);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetNativePath(nsACString &_retval)
{
_retval = mPath;
return NS_OK;
}
nsresult
nsLocalFile::GetNativeTargetPathName(nsIFile *newParent,
const nsACString &newName,
nsACString &_retval)
{
nsresult rv;
nsCOMPtr<nsIFile> oldParent;
if (!newParent) {
if (NS_FAILED(rv = GetParent(getter_AddRefs(oldParent))))
return rv;
newParent = oldParent.get();
} else {
// check to see if our target directory exists
bool targetExists;
if (NS_FAILED(rv = newParent->Exists(&targetExists)))
return rv;
if (!targetExists) {
// XXX create the new directory with some permissions
rv = newParent->Create(DIRECTORY_TYPE, 0755);
if (NS_FAILED(rv))
return rv;
} else {
// make sure that the target is actually a directory
bool targetIsDirectory;
if (NS_FAILED(rv = newParent->IsDirectory(&targetIsDirectory)))
return rv;
if (!targetIsDirectory)
return NS_ERROR_FILE_DESTINATION_NOT_DIR;
}
}
nsACString::const_iterator nameBegin, nameEnd;
if (!newName.IsEmpty()) {
newName.BeginReading(nameBegin);
newName.EndReading(nameEnd);
}
else
LocateNativeLeafName(nameBegin, nameEnd);
nsAutoCString dirName;
if (NS_FAILED(rv = newParent->GetNativePath(dirName)))
return rv;
_retval = dirName
+ NS_LITERAL_CSTRING("/")
+ Substring(nameBegin, nameEnd);
return NS_OK;
}
nsresult
nsLocalFile::CopyDirectoryTo(nsIFile *newParent)
{
nsresult rv;
/*
* dirCheck is used for various boolean test results such as from Equals,
* Exists, isDir, etc.
*/
bool dirCheck, isSymlink;
uint32_t oldPerms;
if (NS_FAILED(rv = IsDirectory(&dirCheck)))
return rv;
if (!dirCheck)
return CopyToNative(newParent, EmptyCString());
if (NS_FAILED(rv = Equals(newParent, &dirCheck)))
return rv;
if (dirCheck) {
// can't copy dir to itself
return NS_ERROR_INVALID_ARG;
}
if (NS_FAILED(rv = newParent->Exists(&dirCheck)))
return rv;
// get the dirs old permissions
if (NS_FAILED(rv = GetPermissions(&oldPerms)))
return rv;
if (!dirCheck) {
if (NS_FAILED(rv = newParent->Create(DIRECTORY_TYPE, oldPerms)))
return rv;
} else { // dir exists lets try to use leaf
nsAutoCString leafName;
if (NS_FAILED(rv = GetNativeLeafName(leafName)))
return rv;
if (NS_FAILED(rv = newParent->AppendNative(leafName)))
return rv;
if (NS_FAILED(rv = newParent->Exists(&dirCheck)))
return rv;
if (dirCheck)
return NS_ERROR_FILE_ALREADY_EXISTS; // dest exists
if (NS_FAILED(rv = newParent->Create(DIRECTORY_TYPE, oldPerms)))
return rv;
}
nsCOMPtr<nsISimpleEnumerator> dirIterator;
if (NS_FAILED(rv = GetDirectoryEntries(getter_AddRefs(dirIterator))))
return rv;
bool hasMore = false;
while (dirIterator->HasMoreElements(&hasMore), hasMore) {
nsCOMPtr<nsIFile> entry;
rv = dirIterator->GetNext((nsISupports**)getter_AddRefs(entry));
if (NS_FAILED(rv))
continue;
if (NS_FAILED(rv = entry->IsSymlink(&isSymlink)))
return rv;
if (NS_FAILED(rv = entry->IsDirectory(&dirCheck)))
return rv;
if (dirCheck && !isSymlink) {
nsCOMPtr<nsIFile> destClone;
rv = newParent->Clone(getter_AddRefs(destClone));
if (NS_SUCCEEDED(rv)) {
if (NS_FAILED(rv = entry->CopyToNative(destClone, EmptyCString()))) {
#ifdef DEBUG
nsresult rv2;
nsAutoCString pathName;
if (NS_FAILED(rv2 = entry->GetNativePath(pathName)))
return rv2;
printf("Operation not supported: %s\n", pathName.get());
#endif
if (rv == NS_ERROR_OUT_OF_MEMORY)
return rv;
continue;
}
}
} else {
if (NS_FAILED(rv = entry->CopyToNative(newParent, EmptyCString()))) {
#ifdef DEBUG
nsresult rv2;
nsAutoCString pathName;
if (NS_FAILED(rv2 = entry->GetNativePath(pathName)))
return rv2;
printf("Operation not supported: %s\n", pathName.get());
#endif
if (rv == NS_ERROR_OUT_OF_MEMORY)
return rv;
continue;
}
}
}
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::CopyToNative(nsIFile *newParent, const nsACString &newName)
{
nsresult rv;
// check to make sure that this has been initialized properly
CHECK_mPath();
// we copy the parent here so 'newParent' remains immutable
nsCOMPtr <nsIFile> workParent;
if (newParent) {
if (NS_FAILED(rv = newParent->Clone(getter_AddRefs(workParent))))
return rv;
} else {
if (NS_FAILED(rv = GetParent(getter_AddRefs(workParent))))
return rv;
}
// check to see if we are a directory or if we are a file
bool isDirectory;
if (NS_FAILED(rv = IsDirectory(&isDirectory)))
return rv;
nsAutoCString newPathName;
if (isDirectory) {
if (!newName.IsEmpty()) {
if (NS_FAILED(rv = workParent->AppendNative(newName)))
return rv;
} else {
if (NS_FAILED(rv = GetNativeLeafName(newPathName)))
return rv;
if (NS_FAILED(rv = workParent->AppendNative(newPathName)))
return rv;
}
if (NS_FAILED(rv = CopyDirectoryTo(workParent)))
return rv;
} else {
rv = GetNativeTargetPathName(workParent, newName, newPathName);
if (NS_FAILED(rv))
return rv;
#ifdef DEBUG_blizzard
printf("nsLocalFile::CopyTo() %s -> %s\n", mPath.get(), newPathName.get());
#endif
// actually create the file.
nsLocalFile *newFile = new nsLocalFile();
if (!newFile)
return NS_ERROR_OUT_OF_MEMORY;
nsCOMPtr<nsIFile> fileRef(newFile); // release on exit
rv = newFile->InitWithNativePath(newPathName);
if (NS_FAILED(rv))
return rv;
// get the old permissions
uint32_t myPerms;
GetPermissions(&myPerms);
// Create the new file with the old file's permissions, even if write
// permission is missing. We can't create with write permission and
// then change back to myPerm on all filesystems (FAT on Linux, e.g.).
// But we can write to a read-only file on all Unix filesystems if we
// open it successfully for writing.
PRFileDesc *newFD;
rv = newFile->CreateAndKeepOpen(NORMAL_FILE_TYPE,
PR_WRONLY|PR_CREATE_FILE|PR_TRUNCATE,
myPerms,
&newFD);
if (NS_FAILED(rv))
return rv;
// open the old file, too
bool specialFile;
if (NS_FAILED(rv = IsSpecial(&specialFile))) {
PR_Close(newFD);
return rv;
}
if (specialFile) {
#ifdef DEBUG
printf("Operation not supported: %s\n", mPath.get());
#endif
// make sure to clean up properly
PR_Close(newFD);
return NS_OK;
}
PRFileDesc *oldFD;
rv = OpenNSPRFileDesc(PR_RDONLY, myPerms, &oldFD);
if (NS_FAILED(rv)) {
// make sure to clean up properly
PR_Close(newFD);
return rv;
}
#ifdef DEBUG_blizzard
int32_t totalRead = 0;
int32_t totalWritten = 0;
#endif
char buf[BUFSIZ];
int32_t bytesRead;
while ((bytesRead = PR_Read(oldFD, buf, BUFSIZ)) > 0) {
#ifdef DEBUG_blizzard
totalRead += bytesRead;
#endif
// PR_Write promises never to do a short write
int32_t bytesWritten = PR_Write(newFD, buf, bytesRead);
if (bytesWritten < 0) {
bytesRead = -1;
break;
}
NS_ASSERTION(bytesWritten == bytesRead, "short PR_Write?");
#ifdef DEBUG_blizzard
totalWritten += bytesWritten;
#endif
}
#ifdef DEBUG_blizzard
printf("read %d bytes, wrote %d bytes\n",
totalRead, totalWritten);
#endif
// close the files
PR_Close(newFD);
PR_Close(oldFD);
// check for read (or write) error after cleaning up
if (bytesRead < 0)
return NS_ERROR_OUT_OF_MEMORY;
}
return rv;
}
NS_IMETHODIMP
nsLocalFile::CopyToFollowingLinksNative(nsIFile *newParent, const nsACString &newName)
{
return CopyToNative(newParent, newName);
}
NS_IMETHODIMP
nsLocalFile::MoveToNative(nsIFile *newParent, const nsACString &newName)
{
nsresult rv;
// check to make sure that this has been initialized properly
CHECK_mPath();
// check to make sure that we have a new parent
nsAutoCString newPathName;
rv = GetNativeTargetPathName(newParent, newName, newPathName);
if (NS_FAILED(rv))
return rv;
// try for atomic rename, falling back to copy/delete
if (rename(mPath.get(), newPathName.get()) < 0) {
#ifdef VMS
if (errno == EXDEV || errno == ENXIO) {
#else
if (errno == EXDEV) {
#endif
rv = CopyToNative(newParent, newName);
if (NS_SUCCEEDED(rv))
rv = Remove(true);
} else {
rv = NSRESULT_FOR_ERRNO();
}
}
if (NS_SUCCEEDED(rv)) {
// Adjust this
mPath = newPathName;
}
return rv;
}
NS_IMETHODIMP
nsLocalFile::Remove(bool recursive)
{
CHECK_mPath();
ENSURE_STAT_CACHE();
bool isSymLink;
nsresult rv = IsSymlink(&isSymLink);
if (NS_FAILED(rv))
return rv;
if (isSymLink || !S_ISDIR(mCachedStat.st_mode))
return NSRESULT_FOR_RETURN(unlink(mPath.get()));
if (recursive) {
nsDirEnumeratorUnix *dir = new nsDirEnumeratorUnix();
if (!dir)
return NS_ERROR_OUT_OF_MEMORY;
nsCOMPtr<nsISimpleEnumerator> dirRef(dir); // release on exit
rv = dir->Init(this, false);
if (NS_FAILED(rv))
return rv;
bool more;
while (dir->HasMoreElements(&more), more) {
nsCOMPtr<nsISupports> item;
rv = dir->GetNext(getter_AddRefs(item));
if (NS_FAILED(rv))
return NS_ERROR_FAILURE;
nsCOMPtr<nsIFile> file = do_QueryInterface(item, &rv);
if (NS_FAILED(rv))
return NS_ERROR_FAILURE;
rv = file->Remove(recursive);
#ifdef ANDROID
// See bug 580434 - Bionic gives us just deleted files
if (rv == NS_ERROR_FILE_TARGET_DOES_NOT_EXIST)
continue;
#endif
if (NS_FAILED(rv))
return rv;
}
}
return NSRESULT_FOR_RETURN(rmdir(mPath.get()));
}
NS_IMETHODIMP
nsLocalFile::GetLastModifiedTime(PRTime *aLastModTime)
{
CHECK_mPath();
NS_ENSURE_ARG(aLastModTime);
PRFileInfo64 info;
if (PR_GetFileInfo64(mPath.get(), &info) != PR_SUCCESS)
return NSRESULT_FOR_ERRNO();
PRTime modTime = info.modifyTime;
if (modTime == 0)
*aLastModTime = 0;
else
*aLastModTime = modTime / PR_USEC_PER_MSEC;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::SetLastModifiedTime(PRTime aLastModTime)
{
CHECK_mPath();
int result;
if (aLastModTime != 0) {
ENSURE_STAT_CACHE();
struct utimbuf ut;
ut.actime = mCachedStat.st_atime;
// convert milliseconds to seconds since the unix epoch
ut.modtime = (time_t)(aLastModTime / PR_MSEC_PER_SEC);
result = utime(mPath.get(), &ut);
} else {
result = utime(mPath.get(), nullptr);
}
return NSRESULT_FOR_RETURN(result);
}
NS_IMETHODIMP
nsLocalFile::GetLastModifiedTimeOfLink(PRTime *aLastModTimeOfLink)
{
CHECK_mPath();
NS_ENSURE_ARG(aLastModTimeOfLink);
struct STAT sbuf;
if (LSTAT(mPath.get(), &sbuf) == -1)
return NSRESULT_FOR_ERRNO();
*aLastModTimeOfLink = PRTime(sbuf.st_mtime) * PR_MSEC_PER_SEC;
return NS_OK;
}
/*
* utime(2) may or may not dereference symlinks, joy.
*/
NS_IMETHODIMP
nsLocalFile::SetLastModifiedTimeOfLink(PRTime aLastModTimeOfLink)
{
return SetLastModifiedTime(aLastModTimeOfLink);
}
/*
* Only send back permissions bits: maybe we want to send back the whole
* mode_t to permit checks against other file types?
*/
#define NORMALIZE_PERMS(mode) ((mode)& (S_IRWXU | S_IRWXG | S_IRWXO))
NS_IMETHODIMP
nsLocalFile::GetPermissions(uint32_t *aPermissions)
{
NS_ENSURE_ARG(aPermissions);
ENSURE_STAT_CACHE();
*aPermissions = NORMALIZE_PERMS(mCachedStat.st_mode);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetPermissionsOfLink(uint32_t *aPermissionsOfLink)
{
CHECK_mPath();
NS_ENSURE_ARG(aPermissionsOfLink);
struct STAT sbuf;
if (LSTAT(mPath.get(), &sbuf) == -1)
return NSRESULT_FOR_ERRNO();
*aPermissionsOfLink = NORMALIZE_PERMS(sbuf.st_mode);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::SetPermissions(uint32_t aPermissions)
{
CHECK_mPath();
/*
* Race condition here: we should use fchmod instead, there's no way to
* guarantee the name still refers to the same file.
*/
if (chmod(mPath.get(), aPermissions) >= 0)
return NS_OK;
#if defined(ANDROID) && defined(STATFS)
// For the time being, this is restricted for use by Android, but we
// will figure out what to do for all platforms in bug 638503
struct STATFS sfs;
if (STATFS(mPath.get(), &sfs) < 0)
return NSRESULT_FOR_ERRNO();
// if this is a FAT file system we can't set file permissions
if (sfs.f_type == MSDOS_SUPER_MAGIC )
return NS_OK;
#endif
return NSRESULT_FOR_ERRNO();
}
NS_IMETHODIMP
nsLocalFile::SetPermissionsOfLink(uint32_t aPermissions)
{
// There isn't a consistent mechanism for doing this on UNIX platforms. We
// might want to carefully implement this in the future though.
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsLocalFile::GetFileSize(int64_t *aFileSize)
{
NS_ENSURE_ARG_POINTER(aFileSize);
*aFileSize = 0;
ENSURE_STAT_CACHE();
#if defined(VMS)
/* Only two record formats can report correct file content size */
if ((mCachedStat.st_fab_rfm != FAB$C_STMLF) &&
(mCachedStat.st_fab_rfm != FAB$C_STMCR)) {
return NS_ERROR_FAILURE;
}
#endif
if (!S_ISDIR(mCachedStat.st_mode)) {
*aFileSize = (int64_t)mCachedStat.st_size;
}
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::SetFileSize(int64_t aFileSize)
{
CHECK_mPath();
#if defined(ANDROID)
/* no truncate on bionic */
int fd = open(mPath.get(), O_WRONLY);
if (fd == -1)
return NSRESULT_FOR_ERRNO();
int ret = ftruncate(fd, (off_t)aFileSize);
close(fd);
if (ret == -1)
return NSRESULT_FOR_ERRNO();
#elif defined(HAVE_TRUNCATE64)
if (truncate64(mPath.get(), (off64_t)aFileSize) == -1)
return NSRESULT_FOR_ERRNO();
#else
off_t size = (off_t)aFileSize;
if (truncate(mPath.get(), size) == -1)
return NSRESULT_FOR_ERRNO();
#endif
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetFileSizeOfLink(int64_t *aFileSize)
{
CHECK_mPath();
NS_ENSURE_ARG(aFileSize);
struct STAT sbuf;
if (LSTAT(mPath.get(), &sbuf) == -1)
return NSRESULT_FOR_ERRNO();
*aFileSize = (int64_t)sbuf.st_size;
return NS_OK;
}
#if defined(USE_LINUX_QUOTACTL)
/*
* Searches /proc/self/mountinfo for given device (Major:Minor),
* returns exported name from /dev
*
* Fails when /proc/self/mountinfo or diven device don't exist.
*/
static bool
GetDeviceName(int deviceMajor, int deviceMinor, nsACString &deviceName)
{
bool ret = false;
const int kMountInfoLineLength = 200;
const int kMountInfoDevPosition = 6;
char mountinfo_line[kMountInfoLineLength];
char device_num[kMountInfoLineLength];
snprintf(device_num,kMountInfoLineLength,"%d:%d", deviceMajor, deviceMinor);
FILE *f = fopen("/proc/self/mountinfo","rt");
if(!f)
return ret;
// Expects /proc/self/mountinfo in format:
// 'ID ID major:minor root mountpoint flags - type devicename flags'
while(fgets(mountinfo_line,kMountInfoLineLength,f)) {
char *p_dev = strstr(mountinfo_line,device_num);
int i;
for(i = 0; i < kMountInfoDevPosition && p_dev != NULL; i++) {
p_dev = strchr(p_dev,' ');
if(p_dev)
p_dev++;
}
if(p_dev) {
char *p_dev_end = strchr(p_dev,' ');
if(p_dev_end) {
*p_dev_end = '\0';
deviceName.Assign(p_dev);
ret = true;
break;
}
}
}
fclose(f);
return ret;
}
#endif
NS_IMETHODIMP
nsLocalFile::GetDiskSpaceAvailable(int64_t *aDiskSpaceAvailable)
{
NS_ENSURE_ARG_POINTER(aDiskSpaceAvailable);
// These systems have the operations necessary to check disk space.
#ifdef STATFS
// check to make sure that mPath is properly initialized
CHECK_mPath();
struct STATFS fs_buf;
/*
* Members of the STATFS struct that you should know about:
* F_BSIZE = block size on disk.
* f_bavail = number of free blocks available to a non-superuser.
* f_bfree = number of total free blocks in file system.
*/
if (STATFS(mPath.get(), &fs_buf) < 0) {
// The call to STATFS failed.
#ifdef DEBUG
printf("ERROR: GetDiskSpaceAvailable: STATFS call FAILED. \n");
#endif
return NS_ERROR_FAILURE;
}
*aDiskSpaceAvailable = (int64_t) fs_buf.F_BSIZE * fs_buf.f_bavail;
#ifdef DEBUG_DISK_SPACE
printf("DiskSpaceAvailable: %lu bytes\n",
*aDiskSpaceAvailable);
#endif
#if defined(USE_LINUX_QUOTACTL)
if(!FillStatCache()) {
// Return available size from statfs
return NS_OK;
}
nsCString deviceName;
if(!GetDeviceName(major(mCachedStat.st_dev), minor(mCachedStat.st_dev), deviceName)) {
return NS_OK;
}
struct dqblk dq;
if(!quotactl(QCMD(Q_GETQUOTA, USRQUOTA), deviceName.get(), getuid(), (caddr_t)&dq)
#ifdef QIF_BLIMITS
&& dq.dqb_valid & QIF_BLIMITS
#endif
&& dq.dqb_bhardlimit)
{
int64_t QuotaSpaceAvailable = 0;
if (dq.dqb_bhardlimit > dq.dqb_curspace)
QuotaSpaceAvailable = int64_t(fs_buf.F_BSIZE * (dq.dqb_bhardlimit - dq.dqb_curspace));
if(QuotaSpaceAvailable < *aDiskSpaceAvailable) {
*aDiskSpaceAvailable = QuotaSpaceAvailable;
}
}
#endif
return NS_OK;
#else
/*
* This platform doesn't have statfs or statvfs. I'm sure that there's
* a way to check for free disk space on platforms that don't have statfs
* (I'm SURE they have df, for example).
*
* Until we figure out how to do that, lets be honest and say that this
* command isn't implemented properly for these platforms yet.
*/
#ifdef DEBUG
printf("ERROR: GetDiskSpaceAvailable: Not implemented for plaforms without statfs.\n");
#endif
return NS_ERROR_NOT_IMPLEMENTED;
#endif /* STATFS */
}
NS_IMETHODIMP
nsLocalFile::GetParent(nsIFile **aParent)
{
CHECK_mPath();
NS_ENSURE_ARG_POINTER(aParent);
*aParent = nullptr;
// if '/' we are at the top of the volume, return null
if (mPath.Equals("/"))
return NS_OK;
// <brendan, after jband> I promise to play nice
char *buffer = mPath.BeginWriting(),
*slashp = buffer;
// find the last significant slash in buffer
slashp = strrchr(buffer, '/');
NS_ASSERTION(slashp, "non-canonical path?");
if (!slashp)
return NS_ERROR_FILE_INVALID_PATH;
// for the case where we are at '/'
if (slashp == buffer)
slashp++;
// temporarily terminate buffer at the last significant slash
char c = *slashp;
*slashp = '\0';
nsCOMPtr<nsIFile> localFile;
nsresult rv = NS_NewNativeLocalFile(nsDependentCString(buffer), true,
getter_AddRefs(localFile));
// make buffer whole again
*slashp = c;
if (NS_SUCCEEDED(rv) && localFile)
rv = CallQueryInterface(localFile, aParent);
return rv;
}
/*
* The results of Exists, isWritable and isReadable are not cached.
*/
NS_IMETHODIMP
nsLocalFile::Exists(bool *_retval)
{
CHECK_mPath();
NS_ENSURE_ARG_POINTER(_retval);
*_retval = (access(mPath.get(), F_OK) == 0);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsWritable(bool *_retval)
{
CHECK_mPath();
NS_ENSURE_ARG_POINTER(_retval);
*_retval = (access(mPath.get(), W_OK) == 0);
if (*_retval || errno == EACCES)
return NS_OK;
return NSRESULT_FOR_ERRNO();
}
NS_IMETHODIMP
nsLocalFile::IsReadable(bool *_retval)
{
CHECK_mPath();
NS_ENSURE_ARG_POINTER(_retval);
*_retval = (access(mPath.get(), R_OK) == 0);
if (*_retval || errno == EACCES)
return NS_OK;
return NSRESULT_FOR_ERRNO();
}
NS_IMETHODIMP
nsLocalFile::IsExecutable(bool *_retval)
{
CHECK_mPath();
NS_ENSURE_ARG_POINTER(_retval);
// Check extension (bug 663899). On certain platforms, the file
// extension may cause the OS to treat it as executable regardless of
// the execute bit, such as .jar on Mac OS X. We borrow the code from
// nsLocalFileWin, slightly modified.
// Don't be fooled by symlinks.
bool symLink;
nsresult rv = IsSymlink(&symLink);
if (NS_FAILED(rv))
return rv;
nsAutoString path;
if (symLink)
GetTarget(path);
else
GetPath(path);
int32_t dotIdx = path.RFindChar(PRUnichar('.'));
if (dotIdx != kNotFound) {
// Convert extension to lower case.
PRUnichar *p = path.BeginWriting();
for(p += dotIdx + 1; *p; p++)
*p += (*p >= L'A' && *p <= L'Z') ? 'a' - 'A' : 0;
// Search for any of the set of executable extensions.
static const char * const executableExts[] = {
"air", // Adobe AIR installer
"jar"}; // java application bundle
nsDependentSubstring ext = Substring(path, dotIdx + 1);
for (size_t i = 0; i < ArrayLength(executableExts); i++) {
if (ext.EqualsASCII(executableExts[i])) {
// Found a match. Set result and quit.
*_retval = true;
return NS_OK;
}
}
}
// On OS X, then query Launch Services.
#ifdef MOZ_WIDGET_COCOA
// Certain Mac applications, such as Classic applications, which
// run under Rosetta, might not have the +x mode bit but are still
// considered to be executable by Launch Services (bug 646748).
CFURLRef url;
if (NS_FAILED(GetCFURL(&url))) {
return NS_ERROR_FAILURE;
}
LSRequestedInfo theInfoRequest = kLSRequestAllInfo;
LSItemInfoRecord theInfo;
OSStatus result = ::LSCopyItemInfoForURL(url, theInfoRequest, &theInfo);
::CFRelease(url);
if (result == noErr) {
if ((theInfo.flags & kLSItemInfoIsApplication) != 0) {
*_retval = true;
return NS_OK;
}
}
#endif
// Then check the execute bit.
*_retval = (access(mPath.get(), X_OK) == 0);
#ifdef SOLARIS
// On Solaris, access will always return 0 for root user, however
// the file is only executable if S_IXUSR | S_IXGRP | S_IXOTH is set.
// See bug 351950, https://bugzilla.mozilla.org/show_bug.cgi?id=351950
if (*_retval) {
struct STAT buf;
*_retval = (STAT(mPath.get(), &buf) == 0);
if (*_retval || errno == EACCES) {
*_retval = *_retval &&
(buf.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH ));
return NS_OK;
}
return NSRESULT_FOR_ERRNO();
}
#endif
if (*_retval || errno == EACCES)
return NS_OK;
return NSRESULT_FOR_ERRNO();
}
NS_IMETHODIMP
nsLocalFile::IsDirectory(bool *_retval)
{
NS_ENSURE_ARG_POINTER(_retval);
*_retval = false;
ENSURE_STAT_CACHE();
*_retval = S_ISDIR(mCachedStat.st_mode);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsFile(bool *_retval)
{
NS_ENSURE_ARG_POINTER(_retval);
*_retval = false;
ENSURE_STAT_CACHE();
*_retval = S_ISREG(mCachedStat.st_mode);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsHidden(bool *_retval)
{
NS_ENSURE_ARG_POINTER(_retval);
nsACString::const_iterator begin, end;
LocateNativeLeafName(begin, end);
*_retval = (*begin == '.');
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsSymlink(bool *_retval)
{
NS_ENSURE_ARG_POINTER(_retval);
CHECK_mPath();
struct STAT symStat;
if (LSTAT(mPath.get(), &symStat) == -1)
return NSRESULT_FOR_ERRNO();
*_retval=S_ISLNK(symStat.st_mode);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsSpecial(bool *_retval)
{
NS_ENSURE_ARG_POINTER(_retval);
ENSURE_STAT_CACHE();
*_retval = S_ISCHR(mCachedStat.st_mode) ||
S_ISBLK(mCachedStat.st_mode) ||
#ifdef S_ISSOCK
S_ISSOCK(mCachedStat.st_mode) ||
#endif
S_ISFIFO(mCachedStat.st_mode);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::Equals(nsIFile *inFile, bool *_retval)
{
NS_ENSURE_ARG(inFile);
NS_ENSURE_ARG_POINTER(_retval);
*_retval = false;
nsAutoCString inPath;
nsresult rv = inFile->GetNativePath(inPath);
if (NS_FAILED(rv))
return rv;
// We don't need to worry about "/foo/" vs. "/foo" here
// because trailing slashes are stripped on init.
*_retval = !strcmp(inPath.get(), mPath.get());
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::Contains(nsIFile *inFile, bool recur, bool *_retval)
{
CHECK_mPath();
NS_ENSURE_ARG(inFile);
NS_ENSURE_ARG_POINTER(_retval);
nsAutoCString inPath;
nsresult rv;
if (NS_FAILED(rv = inFile->GetNativePath(inPath)))
return rv;
*_retval = false;
ssize_t len = mPath.Length();
if (strncmp(mPath.get(), inPath.get(), len) == 0) {
// Now make sure that the |inFile|'s path has a separator at len,
// which implies that it has more components after len.
if (inPath[len] == '/')
*_retval = true;
}
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetNativeTarget(nsACString &_retval)
{
CHECK_mPath();
_retval.Truncate();
struct STAT symStat;
if (LSTAT(mPath.get(), &symStat) == -1)
return NSRESULT_FOR_ERRNO();
if (!S_ISLNK(symStat.st_mode))
return NS_ERROR_FILE_INVALID_PATH;
int32_t size = (int32_t)symStat.st_size;
char *target = (char *)nsMemory::Alloc(size + 1);
if (!target)
return NS_ERROR_OUT_OF_MEMORY;
if (readlink(mPath.get(), target, (size_t)size) < 0) {
nsMemory::Free(target);
return NSRESULT_FOR_ERRNO();
}
target[size] = '\0';
nsresult rv = NS_OK;
nsCOMPtr<nsIFile> self(this);
int32_t maxLinks = 40;
while (true) {
if (maxLinks-- == 0) {
rv = NS_ERROR_FILE_UNRESOLVABLE_SYMLINK;
break;
}
if (target[0] != '/') {
nsCOMPtr<nsIFile> parent;
if (NS_FAILED(rv = self->GetParent(getter_AddRefs(parent))))
break;
if (NS_FAILED(rv = parent->AppendRelativeNativePath(nsDependentCString(target))))
break;
if (NS_FAILED(rv = parent->GetNativePath(_retval)))
break;
self = parent;
} else {
_retval = target;
}
const nsPromiseFlatCString &flatRetval = PromiseFlatCString(_retval);
// Any failure in testing the current target we'll just interpret
// as having reached our destiny.
if (LSTAT(flatRetval.get(), &symStat) == -1)
break;
// And of course we're done if it isn't a symlink.
if (!S_ISLNK(symStat.st_mode))
break;
int32_t newSize = (int32_t)symStat.st_size;
if (newSize > size) {
char *newTarget = (char *)nsMemory::Realloc(target, newSize + 1);
if (!newTarget) {
rv = NS_ERROR_OUT_OF_MEMORY;
break;
}
target = newTarget;
size = newSize;
}
int32_t linkLen = readlink(flatRetval.get(), target, size);
if (linkLen == -1) {
rv = NSRESULT_FOR_ERRNO();
break;
}
target[linkLen] = '\0';
}
nsMemory::Free(target);
if (NS_FAILED(rv))
_retval.Truncate();
return rv;
}
NS_IMETHODIMP
nsLocalFile::GetFollowLinks(bool *aFollowLinks)
{
*aFollowLinks = true;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::SetFollowLinks(bool aFollowLinks)
{
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetDirectoryEntries(nsISimpleEnumerator **entries)
{
nsDirEnumeratorUnix *dir = new nsDirEnumeratorUnix();
if (!dir)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(dir);
nsresult rv = dir->Init(this, false);
if (NS_FAILED(rv)) {
*entries = nullptr;
NS_RELEASE(dir);
} else {
*entries = dir; // transfer reference
}
return rv;
}
NS_IMETHODIMP
nsLocalFile::Load(PRLibrary **_retval)
{
CHECK_mPath();
NS_ENSURE_ARG_POINTER(_retval);
#ifdef NS_BUILD_REFCNT_LOGGING
nsTraceRefcntImpl::SetActivityIsLegal(false);
#endif
*_retval = PR_LoadLibrary(mPath.get());
#ifdef NS_BUILD_REFCNT_LOGGING
nsTraceRefcntImpl::SetActivityIsLegal(true);
#endif
if (!*_retval)
return NS_ERROR_FAILURE;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetPersistentDescriptor(nsACString &aPersistentDescriptor)
{
return GetNativePath(aPersistentDescriptor);
}
NS_IMETHODIMP
nsLocalFile::SetPersistentDescriptor(const nsACString &aPersistentDescriptor)
{
#ifdef MOZ_WIDGET_COCOA
if (aPersistentDescriptor.IsEmpty())
return NS_ERROR_INVALID_ARG;
// Support pathnames as user-supplied descriptors if they begin with '/'
// or '~'. These characters do not collide with the base64 set used for
// encoding alias records.
char first = aPersistentDescriptor.First();
if (first == '/' || first == '~')
return InitWithNativePath(aPersistentDescriptor);
uint32_t dataSize = aPersistentDescriptor.Length();
char* decodedData = PL_Base64Decode(PromiseFlatCString(aPersistentDescriptor).get(), dataSize, nullptr);
if (!decodedData) {
NS_ERROR("SetPersistentDescriptor was given bad data");
return NS_ERROR_FAILURE;
}
// Cast to an alias record and resolve.
AliasRecord aliasHeader = *(AliasPtr)decodedData;
int32_t aliasSize = ::GetAliasSizeFromPtr(&aliasHeader);
if (aliasSize > ((int32_t)dataSize * 3) / 4) { // be paranoid about having too few data
PR_Free(decodedData);
return NS_ERROR_FAILURE;
}
nsresult rv = NS_OK;
// Move the now-decoded data into the Handle.
// The size of the decoded data is 3/4 the size of the encoded data. See plbase64.h
Handle newHandle = nullptr;
if (::PtrToHand(decodedData, &newHandle, aliasSize) != noErr)
rv = NS_ERROR_OUT_OF_MEMORY;
PR_Free(decodedData);
if (NS_FAILED(rv))
return rv;
Boolean changed;
FSRef resolvedFSRef;
OSErr err = ::FSResolveAlias(nullptr, (AliasHandle)newHandle, &resolvedFSRef, &changed);
rv = MacErrorMapper(err);
DisposeHandle(newHandle);
if (NS_FAILED(rv))
return rv;
return InitWithFSRef(&resolvedFSRef);
#else
return InitWithNativePath(aPersistentDescriptor);
#endif
}
NS_IMETHODIMP
nsLocalFile::Reveal()
{
#ifdef MOZ_WIDGET_GTK
nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
nsCOMPtr<nsIGnomeVFSService> gnomevfs = do_GetService(NS_GNOMEVFSSERVICE_CONTRACTID);
if (!giovfs && !gnomevfs)
return NS_ERROR_FAILURE;
bool isDirectory;
if (NS_FAILED(IsDirectory(&isDirectory)))
return NS_ERROR_FAILURE;
if (isDirectory) {
if (giovfs)
return giovfs->ShowURIForInput(mPath);
else
/* Fallback to GnomeVFS */
return gnomevfs->ShowURIForInput(mPath);
} else {
nsCOMPtr<nsIFile> parentDir;
nsAutoCString dirPath;
if (NS_FAILED(GetParent(getter_AddRefs(parentDir))))
return NS_ERROR_FAILURE;
if (NS_FAILED(parentDir->GetNativePath(dirPath)))
return NS_ERROR_FAILURE;
if (giovfs)
return giovfs->ShowURIForInput(dirPath);
else
return gnomevfs->ShowURIForInput(dirPath);
}
#elif defined(MOZ_WIDGET_COCOA)
CFURLRef url;
if (NS_SUCCEEDED(GetCFURL(&url))) {
nsresult rv = CocoaFileUtils::RevealFileInFinder(url);
::CFRelease(url);
return rv;
}
return NS_ERROR_FAILURE;
#else
return NS_ERROR_FAILURE;
#endif
}
NS_IMETHODIMP
nsLocalFile::Launch()
{
#ifdef MOZ_WIDGET_GTK
#if (MOZ_PLATFORM_MAEMO==5)
const int32_t kHILDON_SUCCESS = 1;
DBusError err;
dbus_error_init(&err);
DBusConnection *connection = dbus_bus_get(DBUS_BUS_SESSION, &err);
if (dbus_error_is_set(&err)) {
dbus_error_free(&err);
return NS_ERROR_FAILURE;
}
if (nullptr == connection)
return NS_ERROR_FAILURE;
if (hildon_mime_open_file(connection, mPath.get()) != kHILDON_SUCCESS)
return NS_ERROR_FAILURE;
return NS_OK;
#else
nsCOMPtr<nsIGIOService> giovfs = do_GetService(NS_GIOSERVICE_CONTRACTID);
nsCOMPtr<nsIGnomeVFSService> gnomevfs = do_GetService(NS_GNOMEVFSSERVICE_CONTRACTID);
if (giovfs) {
return giovfs->ShowURIForInput(mPath);
} else if (gnomevfs) {
/* GnomeVFS fallback */
return gnomevfs->ShowURIForInput(mPath);
}
return NS_ERROR_FAILURE;
#endif
#elif defined(MOZ_ENABLE_CONTENTACTION)
QUrl uri = QUrl::fromLocalFile(QString::fromUtf8(mPath.get()));
ContentAction::Action action =
ContentAction::Action::defaultActionForFile(uri);
if (action.isValid()) {
action.trigger();
return NS_OK;
}
return NS_ERROR_FAILURE;
#elif defined(MOZ_WIDGET_ANDROID)
// Try to get a mimetype, if this fails just use the file uri alone
nsresult rv;
nsAutoCString type;
nsCOMPtr<nsIMIMEService> mimeService(do_GetService("@mozilla.org/mime;1", &rv));
if (NS_SUCCEEDED(rv))
rv = mimeService->GetTypeFromFile(this, type);
nsDependentCString fileUri = NS_LITERAL_CSTRING("file://");
fileUri.Append(mPath);
mozilla::AndroidBridge* bridge = mozilla::AndroidBridge::Bridge();
return bridge->OpenUriExternal(fileUri, type) ? NS_OK : NS_ERROR_FAILURE;
#elif defined(MOZ_WIDGET_COCOA)
CFURLRef url;
if (NS_SUCCEEDED(GetCFURL(&url))) {
nsresult rv = CocoaFileUtils::OpenURL(url);
::CFRelease(url);
return rv;
}
return NS_ERROR_FAILURE;
#else
return NS_ERROR_FAILURE;
#endif
}
nsresult
NS_NewNativeLocalFile(const nsACString &path, bool followSymlinks, nsIFile **result)
{
nsLocalFile *file = new nsLocalFile();
if (!file)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(file);
file->SetFollowLinks(followSymlinks);
if (!path.IsEmpty()) {
nsresult rv = file->InitWithNativePath(path);
if (NS_FAILED(rv)) {
NS_RELEASE(file);
return rv;
}
}
*result = file;
return NS_OK;
}
//-----------------------------------------------------------------------------
// unicode support
//-----------------------------------------------------------------------------
#define SET_UCS(func, ucsArg) \
{ \
nsAutoCString buf; \
nsresult rv = NS_CopyUnicodeToNative(ucsArg, buf); \
if (NS_FAILED(rv)) \
return rv; \
return (func)(buf); \
}
#define GET_UCS(func, ucsArg) \
{ \
nsAutoCString buf; \
nsresult rv = (func)(buf); \
if (NS_FAILED(rv)) return rv; \
return NS_CopyNativeToUnicode(buf, ucsArg); \
}
#define SET_UCS_2ARGS_2(func, opaqueArg, ucsArg) \
{ \
nsAutoCString buf; \
nsresult rv = NS_CopyUnicodeToNative(ucsArg, buf); \
if (NS_FAILED(rv)) \
return rv; \
return (func)(opaqueArg, buf); \
}
// Unicode interface Wrapper
nsresult
nsLocalFile::InitWithPath(const nsAString &filePath)
{
SET_UCS(InitWithNativePath, filePath);
}
nsresult
nsLocalFile::Append(const nsAString &node)
{
SET_UCS(AppendNative, node);
}
nsresult
nsLocalFile::AppendRelativePath(const nsAString &node)
{
SET_UCS(AppendRelativeNativePath, node);
}
nsresult
nsLocalFile::GetLeafName(nsAString &aLeafName)
{
GET_UCS(GetNativeLeafName, aLeafName);
}
nsresult
nsLocalFile::SetLeafName(const nsAString &aLeafName)
{
SET_UCS(SetNativeLeafName, aLeafName);
}
nsresult
nsLocalFile::GetPath(nsAString &_retval)
{
return NS_CopyNativeToUnicode(mPath, _retval);
}
nsresult
nsLocalFile::CopyTo(nsIFile *newParentDir, const nsAString &newName)
{
SET_UCS_2ARGS_2(CopyToNative , newParentDir, newName);
}
nsresult
nsLocalFile::CopyToFollowingLinks(nsIFile *newParentDir, const nsAString &newName)
{
SET_UCS_2ARGS_2(CopyToFollowingLinksNative , newParentDir, newName);
}
nsresult
nsLocalFile::MoveTo(nsIFile *newParentDir, const nsAString &newName)
{
SET_UCS_2ARGS_2(MoveToNative, newParentDir, newName);
}
nsresult
nsLocalFile::GetTarget(nsAString &_retval)
{
GET_UCS(GetNativeTarget, _retval);
}
// 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(mPath);
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))
return rv;
return NS_NewNativeLocalFile(buf, followLinks, result);
}
//-----------------------------------------------------------------------------
// global init/shutdown
//-----------------------------------------------------------------------------
void
nsLocalFile::GlobalInit()
{
}
void
nsLocalFile::GlobalShutdown()
{
}
// nsILocalFileMac
#ifdef MOZ_WIDGET_COCOA
static nsresult MacErrorMapper(OSErr inErr)
{
nsresult outErr;
switch (inErr)
{
case noErr:
outErr = NS_OK;
break;
case fnfErr:
case afpObjectNotFound:
case afpDirNotFound:
outErr = NS_ERROR_FILE_NOT_FOUND;
break;
case dupFNErr:
case afpObjectExists:
outErr = NS_ERROR_FILE_ALREADY_EXISTS;
break;
case dskFulErr:
case afpDiskFull:
outErr = NS_ERROR_FILE_DISK_FULL;
break;
case fLckdErr:
case afpVolLocked:
outErr = NS_ERROR_FILE_IS_LOCKED;
break;
case afpAccessDenied:
outErr = NS_ERROR_FILE_ACCESS_DENIED;
break;
case afpDirNotEmpty:
outErr = NS_ERROR_FILE_DIR_NOT_EMPTY;
break;
// Can't find good map for some
case bdNamErr:
outErr = NS_ERROR_FAILURE;
break;
default:
outErr = NS_ERROR_FAILURE;
break;
}
return outErr;
}
static nsresult CFStringReftoUTF8(CFStringRef aInStrRef, nsACString& aOutStr)
{
// first see if the conversion would succeed and find the length of the result
CFIndex usedBufLen, inStrLen = ::CFStringGetLength(aInStrRef);
CFIndex charsConverted = ::CFStringGetBytes(aInStrRef, CFRangeMake(0, inStrLen),
kCFStringEncodingUTF8, 0, false,
NULL, 0, &usedBufLen);
if (charsConverted == inStrLen) {
// all characters converted, do the actual conversion
aOutStr.SetLength(usedBufLen);
if (aOutStr.Length() != (unsigned int)usedBufLen)
return NS_ERROR_OUT_OF_MEMORY;
UInt8 *buffer = (UInt8*)aOutStr.BeginWriting();
::CFStringGetBytes(aInStrRef, CFRangeMake(0, inStrLen), kCFStringEncodingUTF8,
0, false, buffer, usedBufLen, &usedBufLen);
return NS_OK;
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsLocalFile::InitWithCFURL(CFURLRef aCFURL)
{
UInt8 path[PATH_MAX];
if (::CFURLGetFileSystemRepresentation(aCFURL, false, path, PATH_MAX)) {
nsDependentCString nativePath((char*)path);
return InitWithNativePath(nativePath);
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsLocalFile::InitWithFSRef(const FSRef *aFSRef)
{
NS_ENSURE_ARG(aFSRef);
CFURLRef newURLRef = ::CFURLCreateFromFSRef(kCFAllocatorDefault, aFSRef);
if (newURLRef) {
nsresult rv = InitWithCFURL(newURLRef);
::CFRelease(newURLRef);
return rv;
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsLocalFile::GetCFURL(CFURLRef *_retval)
{
CHECK_mPath();
bool isDir;
IsDirectory(&isDir);
*_retval = ::CFURLCreateFromFileSystemRepresentation(kCFAllocatorDefault,
(UInt8*)mPath.get(),
mPath.Length(),
isDir);
return (*_retval ? NS_OK : NS_ERROR_FAILURE);
}
NS_IMETHODIMP
nsLocalFile::GetFSRef(FSRef *_retval)
{
NS_ENSURE_ARG_POINTER(_retval);
nsresult rv = NS_ERROR_FAILURE;
CFURLRef url = NULL;
if (NS_SUCCEEDED(GetCFURL(&url))) {
if (::CFURLGetFSRef(url, _retval)) {
rv = NS_OK;
}
::CFRelease(url);
}
return rv;
}
NS_IMETHODIMP
nsLocalFile::GetFSSpec(FSSpec *_retval)
{
NS_ENSURE_ARG_POINTER(_retval);
FSRef fsRef;
nsresult rv = GetFSRef(&fsRef);
if (NS_SUCCEEDED(rv)) {
OSErr err = ::FSGetCatalogInfo(&fsRef, kFSCatInfoNone, nullptr, nullptr, _retval, nullptr);
return MacErrorMapper(err);
}
return rv;
}
NS_IMETHODIMP
nsLocalFile::GetFileSizeWithResFork(int64_t *aFileSizeWithResFork)
{
NS_ENSURE_ARG_POINTER(aFileSizeWithResFork);
FSRef fsRef;
nsresult rv = GetFSRef(&fsRef);
if (NS_FAILED(rv))
return rv;
FSCatalogInfo catalogInfo;
OSErr err = ::FSGetCatalogInfo(&fsRef, kFSCatInfoDataSizes + kFSCatInfoRsrcSizes,
&catalogInfo, nullptr, nullptr, nullptr);
if (err != noErr)
return MacErrorMapper(err);
*aFileSizeWithResFork = catalogInfo.dataLogicalSize + catalogInfo.rsrcLogicalSize;
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetFileType(OSType *aFileType)
{
CFURLRef url;
if (NS_SUCCEEDED(GetCFURL(&url))) {
nsresult rv = CocoaFileUtils::GetFileTypeCode(url, aFileType);
::CFRelease(url);
return rv;
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsLocalFile::SetFileType(OSType aFileType)
{
CFURLRef url;
if (NS_SUCCEEDED(GetCFURL(&url))) {
nsresult rv = CocoaFileUtils::SetFileTypeCode(url, aFileType);
::CFRelease(url);
return rv;
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsLocalFile::GetFileCreator(OSType *aFileCreator)
{
CFURLRef url;
if (NS_SUCCEEDED(GetCFURL(&url))) {
nsresult rv = CocoaFileUtils::GetFileCreatorCode(url, aFileCreator);
::CFRelease(url);
return rv;
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsLocalFile::SetFileCreator(OSType aFileCreator)
{
CFURLRef url;
if (NS_SUCCEEDED(GetCFURL(&url))) {
nsresult rv = CocoaFileUtils::SetFileCreatorCode(url, aFileCreator);
::CFRelease(url);
return rv;
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsLocalFile::LaunchWithDoc(nsIFile *aDocToLoad, bool aLaunchInBackground)
{
bool isExecutable;
nsresult rv = IsExecutable(&isExecutable);
if (NS_FAILED(rv))
return rv;
if (!isExecutable)
return NS_ERROR_FILE_EXECUTION_FAILED;
FSRef appFSRef, docFSRef;
rv = GetFSRef(&appFSRef);
if (NS_FAILED(rv))
return rv;
if (aDocToLoad) {
nsCOMPtr<nsILocalFileMac> macDoc = do_QueryInterface(aDocToLoad);
rv = macDoc->GetFSRef(&docFSRef);
if (NS_FAILED(rv))
return rv;
}
LSLaunchFlags theLaunchFlags = kLSLaunchDefaults;
LSLaunchFSRefSpec thelaunchSpec;
if (aLaunchInBackground)
theLaunchFlags |= kLSLaunchDontSwitch;
memset(&thelaunchSpec, 0, sizeof(LSLaunchFSRefSpec));
thelaunchSpec.appRef = &appFSRef;
if (aDocToLoad) {
thelaunchSpec.numDocs = 1;
thelaunchSpec.itemRefs = &docFSRef;
}
thelaunchSpec.launchFlags = theLaunchFlags;
OSErr err = ::LSOpenFromRefSpec(&thelaunchSpec, NULL);
if (err != noErr)
return MacErrorMapper(err);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::OpenDocWithApp(nsIFile *aAppToOpenWith, bool aLaunchInBackground)
{
FSRef docFSRef;
nsresult rv = GetFSRef(&docFSRef);
if (NS_FAILED(rv))
return rv;
if (!aAppToOpenWith) {
OSErr err = ::LSOpenFSRef(&docFSRef, NULL);
return MacErrorMapper(err);
}
nsCOMPtr<nsILocalFileMac> appFileMac = do_QueryInterface(aAppToOpenWith, &rv);
if (!appFileMac)
return rv;
bool isExecutable;
rv = appFileMac->IsExecutable(&isExecutable);
if (NS_FAILED(rv))
return rv;
if (!isExecutable)
return NS_ERROR_FILE_EXECUTION_FAILED;
FSRef appFSRef;
rv = appFileMac->GetFSRef(&appFSRef);
if (NS_FAILED(rv))
return rv;
LSLaunchFlags theLaunchFlags = kLSLaunchDefaults;
LSLaunchFSRefSpec thelaunchSpec;
if (aLaunchInBackground)
theLaunchFlags |= kLSLaunchDontSwitch;
memset(&thelaunchSpec, 0, sizeof(LSLaunchFSRefSpec));
thelaunchSpec.appRef = &appFSRef;
thelaunchSpec.numDocs = 1;
thelaunchSpec.itemRefs = &docFSRef;
thelaunchSpec.launchFlags = theLaunchFlags;
OSErr err = ::LSOpenFromRefSpec(&thelaunchSpec, NULL);
if (err != noErr)
return MacErrorMapper(err);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::IsPackage(bool *_retval)
{
NS_ENSURE_ARG(_retval);
*_retval = false;
CFURLRef url;
nsresult rv = GetCFURL(&url);
if (NS_FAILED(rv))
return rv;
LSItemInfoRecord info;
OSStatus status = ::LSCopyItemInfoForURL(url, kLSRequestBasicFlagsOnly, &info);
::CFRelease(url);
if (status != noErr) {
return NS_ERROR_FAILURE;
}
*_retval = !!(info.flags & kLSItemInfoIsPackage);
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetBundleDisplayName(nsAString& outBundleName)
{
bool isPackage = false;
nsresult rv = IsPackage(&isPackage);
if (NS_FAILED(rv) || !isPackage)
return NS_ERROR_FAILURE;
nsAutoString name;
rv = GetLeafName(name);
if (NS_FAILED(rv))
return rv;
int32_t length = name.Length();
if (Substring(name, length - 4, length).EqualsLiteral(".app")) {
// 4 characters in ".app"
outBundleName = Substring(name, 0, length - 4);
}
else {
outBundleName = name;
}
return NS_OK;
}
NS_IMETHODIMP
nsLocalFile::GetBundleIdentifier(nsACString& outBundleIdentifier)
{
nsresult rv = NS_ERROR_FAILURE;
CFURLRef urlRef;
if (NS_SUCCEEDED(GetCFURL(&urlRef))) {
CFBundleRef bundle = ::CFBundleCreate(NULL, urlRef);
if (bundle) {
CFStringRef bundleIdentifier = ::CFBundleGetIdentifier(bundle);
if (bundleIdentifier)
rv = CFStringReftoUTF8(bundleIdentifier, outBundleIdentifier);
::CFRelease(bundle);
}
::CFRelease(urlRef);
}
return rv;
}
NS_IMETHODIMP
nsLocalFile::GetBundleContentsLastModifiedTime(int64_t *aLastModTime)
{
CHECK_mPath();
NS_ENSURE_ARG_POINTER(aLastModTime);
bool isPackage = false;
nsresult rv = IsPackage(&isPackage);
if (NS_FAILED(rv) || !isPackage) {
return GetLastModifiedTime(aLastModTime);
}
nsAutoCString infoPlistPath(mPath);
infoPlistPath.AppendLiteral("/Contents/Info.plist");
PRFileInfo64 info;
if (PR_GetFileInfo64(infoPlistPath.get(), &info) != PR_SUCCESS) {
return GetLastModifiedTime(aLastModTime);
}
int64_t modTime = int64_t(info.modifyTime);
if (modTime == 0) {
*aLastModTime = 0;
} else {
*aLastModTime = modTime / int64_t(PR_USEC_PER_MSEC);
}
return NS_OK;
}
NS_IMETHODIMP nsLocalFile::InitWithFile(nsIFile *aFile)
{
NS_ENSURE_ARG(aFile);
nsAutoCString nativePath;
nsresult rv = aFile->GetNativePath(nativePath);
if (NS_FAILED(rv))
return rv;
return InitWithNativePath(nativePath);
}
nsresult
NS_NewLocalFileWithFSRef(const FSRef* aFSRef, bool aFollowLinks, nsILocalFileMac** result)
{
nsLocalFile* file = new nsLocalFile();
if (file == nullptr)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(file);
file->SetFollowLinks(aFollowLinks);
nsresult rv = file->InitWithFSRef(aFSRef);
if (NS_FAILED(rv)) {
NS_RELEASE(file);
return rv;
}
*result = file;
return NS_OK;
}
nsresult
NS_NewLocalFileWithCFURL(const CFURLRef aURL, bool aFollowLinks, nsILocalFileMac** result)
{
nsLocalFile* file = new nsLocalFile();
if (!file)
return NS_ERROR_OUT_OF_MEMORY;
NS_ADDREF(file);
file->SetFollowLinks(aFollowLinks);
nsresult rv = file->InitWithCFURL(aURL);
if (NS_FAILED(rv)) {
NS_RELEASE(file);
return rv;
}
*result = file;
return NS_OK;
}
#endif
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