97077a3ab2
Update libyuv to r826. TEST=try bots R=niklas.enbom@webrtc.org Review URL: https://webrtc-codereview.appspot.com/2889004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@5038 4adac7df-926f-26a2-2b94-8c16560cd09d
478 lines
16 KiB
C++
478 lines
16 KiB
C++
/*
|
|
* libjingle
|
|
* Copyright 2004--2006, Google Inc.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
|
|
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
|
|
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
|
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
|
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "talk/base/win32filesystem.h"
|
|
|
|
#include "talk/base/win32.h"
|
|
#include <shellapi.h>
|
|
#include <shlobj.h>
|
|
#include <tchar.h>
|
|
|
|
#include "talk/base/fileutils.h"
|
|
#include "talk/base/pathutils.h"
|
|
#include "talk/base/scoped_ptr.h"
|
|
#include "talk/base/stream.h"
|
|
#include "talk/base/stringutils.h"
|
|
|
|
// In several places in this file, we test the integrity level of the process
|
|
// before calling GetLongPathName. We do this because calling GetLongPathName
|
|
// when running under protected mode IE (a low integrity process) can result in
|
|
// a virtualized path being returned, which is wrong if you only plan to read.
|
|
// TODO: Waiting to hear back from IE team on whether this is the
|
|
// best approach; IEIsProtectedModeProcess is another possible solution.
|
|
|
|
namespace talk_base {
|
|
|
|
bool Win32Filesystem::CreateFolder(const Pathname &pathname) {
|
|
if (pathname.pathname().empty() || !pathname.filename().empty())
|
|
return false;
|
|
|
|
std::wstring path16;
|
|
if (!Utf8ToWindowsFilename(pathname.pathname(), &path16))
|
|
return false;
|
|
|
|
DWORD res = ::GetFileAttributes(path16.c_str());
|
|
if (res != INVALID_FILE_ATTRIBUTES) {
|
|
// Something exists at this location, check if it is a directory
|
|
return ((res & FILE_ATTRIBUTE_DIRECTORY) != 0);
|
|
} else if ((GetLastError() != ERROR_FILE_NOT_FOUND)
|
|
&& (GetLastError() != ERROR_PATH_NOT_FOUND)) {
|
|
// Unexpected error
|
|
return false;
|
|
}
|
|
|
|
// Directory doesn't exist, look up one directory level
|
|
if (!pathname.parent_folder().empty()) {
|
|
Pathname parent(pathname);
|
|
parent.SetFolder(pathname.parent_folder());
|
|
if (!CreateFolder(parent)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return (::CreateDirectory(path16.c_str(), NULL) != 0);
|
|
}
|
|
|
|
FileStream *Win32Filesystem::OpenFile(const Pathname &filename,
|
|
const std::string &mode) {
|
|
FileStream *fs = new FileStream();
|
|
if (fs && !fs->Open(filename.pathname().c_str(), mode.c_str(), NULL)) {
|
|
delete fs;
|
|
fs = NULL;
|
|
}
|
|
return fs;
|
|
}
|
|
|
|
bool Win32Filesystem::CreatePrivateFile(const Pathname &filename) {
|
|
// To make the file private to the current user, we first must construct a
|
|
// SECURITY_DESCRIPTOR specifying an ACL. This code is mostly based upon
|
|
// http://msdn.microsoft.com/en-us/library/ms707085%28VS.85%29.aspx
|
|
|
|
// Get the current process token.
|
|
HANDLE process_token = INVALID_HANDLE_VALUE;
|
|
if (!::OpenProcessToken(::GetCurrentProcess(),
|
|
TOKEN_QUERY,
|
|
&process_token)) {
|
|
LOG_ERR(LS_ERROR) << "OpenProcessToken() failed";
|
|
return false;
|
|
}
|
|
|
|
// Get the size of its TOKEN_USER structure. Return value is not checked
|
|
// because we expect it to fail.
|
|
DWORD token_user_size = 0;
|
|
(void)::GetTokenInformation(process_token,
|
|
TokenUser,
|
|
NULL,
|
|
0,
|
|
&token_user_size);
|
|
|
|
// Get the TOKEN_USER structure.
|
|
scoped_ptr<char[]> token_user_bytes(new char[token_user_size]);
|
|
PTOKEN_USER token_user = reinterpret_cast<PTOKEN_USER>(
|
|
token_user_bytes.get());
|
|
memset(token_user, 0, token_user_size);
|
|
BOOL success = ::GetTokenInformation(process_token,
|
|
TokenUser,
|
|
token_user,
|
|
token_user_size,
|
|
&token_user_size);
|
|
// We're now done with this.
|
|
::CloseHandle(process_token);
|
|
if (!success) {
|
|
LOG_ERR(LS_ERROR) << "GetTokenInformation() failed";
|
|
return false;
|
|
}
|
|
|
|
if (!IsValidSid(token_user->User.Sid)) {
|
|
LOG_ERR(LS_ERROR) << "Current process has invalid user SID";
|
|
return false;
|
|
}
|
|
|
|
// Compute size needed for an ACL that allows access to just this user.
|
|
int acl_size = sizeof(ACL) + sizeof(ACCESS_ALLOWED_ACE) - sizeof(DWORD) +
|
|
GetLengthSid(token_user->User.Sid);
|
|
|
|
// Allocate it.
|
|
scoped_ptr<char[]> acl_bytes(new char[acl_size]);
|
|
PACL acl = reinterpret_cast<PACL>(acl_bytes.get());
|
|
memset(acl, 0, acl_size);
|
|
if (!::InitializeAcl(acl, acl_size, ACL_REVISION)) {
|
|
LOG_ERR(LS_ERROR) << "InitializeAcl() failed";
|
|
return false;
|
|
}
|
|
|
|
// Allow access to only the current user.
|
|
if (!::AddAccessAllowedAce(acl,
|
|
ACL_REVISION,
|
|
GENERIC_READ | GENERIC_WRITE | STANDARD_RIGHTS_ALL,
|
|
token_user->User.Sid)) {
|
|
LOG_ERR(LS_ERROR) << "AddAccessAllowedAce() failed";
|
|
return false;
|
|
}
|
|
|
|
// Now make the security descriptor.
|
|
SECURITY_DESCRIPTOR security_descriptor;
|
|
if (!::InitializeSecurityDescriptor(&security_descriptor,
|
|
SECURITY_DESCRIPTOR_REVISION)) {
|
|
LOG_ERR(LS_ERROR) << "InitializeSecurityDescriptor() failed";
|
|
return false;
|
|
}
|
|
|
|
// Put the ACL in it.
|
|
if (!::SetSecurityDescriptorDacl(&security_descriptor,
|
|
TRUE,
|
|
acl,
|
|
FALSE)) {
|
|
LOG_ERR(LS_ERROR) << "SetSecurityDescriptorDacl() failed";
|
|
return false;
|
|
}
|
|
|
|
// Finally create the file.
|
|
SECURITY_ATTRIBUTES security_attributes;
|
|
security_attributes.nLength = sizeof(security_attributes);
|
|
security_attributes.lpSecurityDescriptor = &security_descriptor;
|
|
security_attributes.bInheritHandle = FALSE;
|
|
HANDLE handle = ::CreateFile(
|
|
ToUtf16(filename.pathname()).c_str(),
|
|
GENERIC_READ | GENERIC_WRITE,
|
|
FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
|
|
&security_attributes,
|
|
CREATE_NEW,
|
|
0,
|
|
NULL);
|
|
if (INVALID_HANDLE_VALUE == handle) {
|
|
LOG_ERR(LS_ERROR) << "CreateFile() failed";
|
|
return false;
|
|
}
|
|
if (!::CloseHandle(handle)) {
|
|
LOG_ERR(LS_ERROR) << "CloseFile() failed";
|
|
// Continue.
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool Win32Filesystem::DeleteFile(const Pathname &filename) {
|
|
LOG(LS_INFO) << "Deleting file " << filename.pathname();
|
|
if (!IsFile(filename)) {
|
|
ASSERT(IsFile(filename));
|
|
return false;
|
|
}
|
|
return ::DeleteFile(ToUtf16(filename.pathname()).c_str()) != 0;
|
|
}
|
|
|
|
bool Win32Filesystem::DeleteEmptyFolder(const Pathname &folder) {
|
|
LOG(LS_INFO) << "Deleting folder " << folder.pathname();
|
|
|
|
std::string no_slash(folder.pathname(), 0, folder.pathname().length()-1);
|
|
return ::RemoveDirectory(ToUtf16(no_slash).c_str()) != 0;
|
|
}
|
|
|
|
bool Win32Filesystem::GetTemporaryFolder(Pathname &pathname, bool create,
|
|
const std::string *append) {
|
|
wchar_t buffer[MAX_PATH + 1];
|
|
if (!::GetTempPath(ARRAY_SIZE(buffer), buffer))
|
|
return false;
|
|
if (!IsCurrentProcessLowIntegrity() &&
|
|
!::GetLongPathName(buffer, buffer, ARRAY_SIZE(buffer)))
|
|
return false;
|
|
size_t len = strlen(buffer);
|
|
if ((len > 0) && (buffer[len-1] != '\\')) {
|
|
len += strcpyn(buffer + len, ARRAY_SIZE(buffer) - len, L"\\");
|
|
}
|
|
if (len >= ARRAY_SIZE(buffer) - 1)
|
|
return false;
|
|
pathname.clear();
|
|
pathname.SetFolder(ToUtf8(buffer));
|
|
if (append != NULL) {
|
|
ASSERT(!append->empty());
|
|
pathname.AppendFolder(*append);
|
|
}
|
|
return !create || CreateFolder(pathname);
|
|
}
|
|
|
|
std::string Win32Filesystem::TempFilename(const Pathname &dir,
|
|
const std::string &prefix) {
|
|
wchar_t filename[MAX_PATH];
|
|
if (::GetTempFileName(ToUtf16(dir.pathname()).c_str(),
|
|
ToUtf16(prefix).c_str(), 0, filename) != 0)
|
|
return ToUtf8(filename);
|
|
ASSERT(false);
|
|
return "";
|
|
}
|
|
|
|
bool Win32Filesystem::MoveFile(const Pathname &old_path,
|
|
const Pathname &new_path) {
|
|
if (!IsFile(old_path)) {
|
|
ASSERT(IsFile(old_path));
|
|
return false;
|
|
}
|
|
LOG(LS_INFO) << "Moving " << old_path.pathname()
|
|
<< " to " << new_path.pathname();
|
|
return ::MoveFile(ToUtf16(old_path.pathname()).c_str(),
|
|
ToUtf16(new_path.pathname()).c_str()) != 0;
|
|
}
|
|
|
|
bool Win32Filesystem::MoveFolder(const Pathname &old_path,
|
|
const Pathname &new_path) {
|
|
if (!IsFolder(old_path)) {
|
|
ASSERT(IsFolder(old_path));
|
|
return false;
|
|
}
|
|
LOG(LS_INFO) << "Moving " << old_path.pathname()
|
|
<< " to " << new_path.pathname();
|
|
if (::MoveFile(ToUtf16(old_path.pathname()).c_str(),
|
|
ToUtf16(new_path.pathname()).c_str()) == 0) {
|
|
if (::GetLastError() != ERROR_NOT_SAME_DEVICE) {
|
|
LOG_GLE(LS_ERROR) << "Failed to move file";
|
|
return false;
|
|
}
|
|
if (!CopyFolder(old_path, new_path))
|
|
return false;
|
|
if (!DeleteFolderAndContents(old_path))
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool Win32Filesystem::IsFolder(const Pathname &path) {
|
|
WIN32_FILE_ATTRIBUTE_DATA data = {0};
|
|
if (0 == ::GetFileAttributesEx(ToUtf16(path.pathname()).c_str(),
|
|
GetFileExInfoStandard, &data))
|
|
return false;
|
|
return (data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ==
|
|
FILE_ATTRIBUTE_DIRECTORY;
|
|
}
|
|
|
|
bool Win32Filesystem::IsFile(const Pathname &path) {
|
|
WIN32_FILE_ATTRIBUTE_DATA data = {0};
|
|
if (0 == ::GetFileAttributesEx(ToUtf16(path.pathname()).c_str(),
|
|
GetFileExInfoStandard, &data))
|
|
return false;
|
|
return (data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0;
|
|
}
|
|
|
|
bool Win32Filesystem::IsAbsent(const Pathname& path) {
|
|
WIN32_FILE_ATTRIBUTE_DATA data = {0};
|
|
if (0 != ::GetFileAttributesEx(ToUtf16(path.pathname()).c_str(),
|
|
GetFileExInfoStandard, &data))
|
|
return false;
|
|
DWORD err = ::GetLastError();
|
|
return (ERROR_FILE_NOT_FOUND == err || ERROR_PATH_NOT_FOUND == err);
|
|
}
|
|
|
|
bool Win32Filesystem::CopyFile(const Pathname &old_path,
|
|
const Pathname &new_path) {
|
|
return ::CopyFile(ToUtf16(old_path.pathname()).c_str(),
|
|
ToUtf16(new_path.pathname()).c_str(), TRUE) != 0;
|
|
}
|
|
|
|
bool Win32Filesystem::IsTemporaryPath(const Pathname& pathname) {
|
|
TCHAR buffer[MAX_PATH + 1];
|
|
if (!::GetTempPath(ARRAY_SIZE(buffer), buffer))
|
|
return false;
|
|
if (!IsCurrentProcessLowIntegrity() &&
|
|
!::GetLongPathName(buffer, buffer, ARRAY_SIZE(buffer)))
|
|
return false;
|
|
return (::strnicmp(ToUtf16(pathname.pathname()).c_str(),
|
|
buffer, strlen(buffer)) == 0);
|
|
}
|
|
|
|
bool Win32Filesystem::GetFileSize(const Pathname &pathname, size_t *size) {
|
|
WIN32_FILE_ATTRIBUTE_DATA data = {0};
|
|
if (::GetFileAttributesEx(ToUtf16(pathname.pathname()).c_str(),
|
|
GetFileExInfoStandard, &data) == 0)
|
|
return false;
|
|
*size = data.nFileSizeLow;
|
|
return true;
|
|
}
|
|
|
|
bool Win32Filesystem::GetFileTime(const Pathname& path, FileTimeType which,
|
|
time_t* time) {
|
|
WIN32_FILE_ATTRIBUTE_DATA data = {0};
|
|
if (::GetFileAttributesEx(ToUtf16(path.pathname()).c_str(),
|
|
GetFileExInfoStandard, &data) == 0)
|
|
return false;
|
|
switch (which) {
|
|
case FTT_CREATED:
|
|
FileTimeToUnixTime(data.ftCreationTime, time);
|
|
break;
|
|
case FTT_MODIFIED:
|
|
FileTimeToUnixTime(data.ftLastWriteTime, time);
|
|
break;
|
|
case FTT_ACCESSED:
|
|
FileTimeToUnixTime(data.ftLastAccessTime, time);
|
|
break;
|
|
default:
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool Win32Filesystem::GetAppPathname(Pathname* path) {
|
|
TCHAR buffer[MAX_PATH + 1];
|
|
if (0 == ::GetModuleFileName(NULL, buffer, ARRAY_SIZE(buffer)))
|
|
return false;
|
|
path->SetPathname(ToUtf8(buffer));
|
|
return true;
|
|
}
|
|
|
|
bool Win32Filesystem::GetAppDataFolder(Pathname* path, bool per_user) {
|
|
ASSERT(!organization_name_.empty());
|
|
ASSERT(!application_name_.empty());
|
|
TCHAR buffer[MAX_PATH + 1];
|
|
int csidl = per_user ? CSIDL_LOCAL_APPDATA : CSIDL_COMMON_APPDATA;
|
|
if (!::SHGetSpecialFolderPath(NULL, buffer, csidl, TRUE))
|
|
return false;
|
|
if (!IsCurrentProcessLowIntegrity() &&
|
|
!::GetLongPathName(buffer, buffer, ARRAY_SIZE(buffer)))
|
|
return false;
|
|
size_t len = strcatn(buffer, ARRAY_SIZE(buffer), __T("\\"));
|
|
len += strcpyn(buffer + len, ARRAY_SIZE(buffer) - len,
|
|
ToUtf16(organization_name_).c_str());
|
|
if ((len > 0) && (buffer[len-1] != __T('\\'))) {
|
|
len += strcpyn(buffer + len, ARRAY_SIZE(buffer) - len, __T("\\"));
|
|
}
|
|
len += strcpyn(buffer + len, ARRAY_SIZE(buffer) - len,
|
|
ToUtf16(application_name_).c_str());
|
|
if ((len > 0) && (buffer[len-1] != __T('\\'))) {
|
|
len += strcpyn(buffer + len, ARRAY_SIZE(buffer) - len, __T("\\"));
|
|
}
|
|
if (len >= ARRAY_SIZE(buffer) - 1)
|
|
return false;
|
|
path->clear();
|
|
path->SetFolder(ToUtf8(buffer));
|
|
return CreateFolder(*path);
|
|
}
|
|
|
|
bool Win32Filesystem::GetAppTempFolder(Pathname* path) {
|
|
if (!GetAppPathname(path))
|
|
return false;
|
|
std::string filename(path->filename());
|
|
return GetTemporaryFolder(*path, true, &filename);
|
|
}
|
|
|
|
bool Win32Filesystem::GetDiskFreeSpace(const Pathname& path, int64 *freebytes) {
|
|
if (!freebytes) {
|
|
return false;
|
|
}
|
|
char drive[4];
|
|
std::wstring drive16;
|
|
const wchar_t* target_drive = NULL;
|
|
if (path.GetDrive(drive, sizeof(drive))) {
|
|
drive16 = ToUtf16(drive);
|
|
target_drive = drive16.c_str();
|
|
} else if (path.folder().substr(0, 2) == "\\\\") {
|
|
// UNC path, fail.
|
|
// TODO: Handle UNC paths.
|
|
return false;
|
|
} else {
|
|
// The path is probably relative. GetDriveType and GetDiskFreeSpaceEx
|
|
// use the current drive if NULL is passed as the drive name.
|
|
// TODO: Add method to Pathname to determine if the path is relative.
|
|
// TODO: Add method to Pathname to convert a path to absolute.
|
|
}
|
|
UINT driveType = ::GetDriveType(target_drive);
|
|
if ( (driveType & DRIVE_REMOTE) || (driveType & DRIVE_UNKNOWN) ) {
|
|
LOG(LS_VERBOSE) << " remove or unknown drive " << drive;
|
|
return false;
|
|
}
|
|
|
|
int64 totalNumberOfBytes; // receives the number of bytes on disk
|
|
int64 totalNumberOfFreeBytes; // receives the free bytes on disk
|
|
// make sure things won't change in 64 bit machine
|
|
// TODO replace with compile time assert
|
|
ASSERT(sizeof(ULARGE_INTEGER) == sizeof(uint64)); //NOLINT
|
|
if (::GetDiskFreeSpaceEx(target_drive,
|
|
(PULARGE_INTEGER)freebytes,
|
|
(PULARGE_INTEGER)&totalNumberOfBytes,
|
|
(PULARGE_INTEGER)&totalNumberOfFreeBytes)) {
|
|
return true;
|
|
} else {
|
|
LOG(LS_VERBOSE) << " GetDiskFreeSpaceEx returns error ";
|
|
return false;
|
|
}
|
|
}
|
|
|
|
Pathname Win32Filesystem::GetCurrentDirectory() {
|
|
Pathname cwd;
|
|
int path_len = 0;
|
|
scoped_ptr<wchar_t[]> path;
|
|
do {
|
|
int needed = ::GetCurrentDirectory(path_len, path.get());
|
|
if (needed == 0) {
|
|
// Error.
|
|
LOG_GLE(LS_ERROR) << "::GetCurrentDirectory() failed";
|
|
return cwd; // returns empty pathname
|
|
}
|
|
if (needed <= path_len) {
|
|
// It wrote successfully.
|
|
break;
|
|
}
|
|
// Else need to re-alloc for "needed".
|
|
path.reset(new wchar_t[needed]);
|
|
path_len = needed;
|
|
} while (true);
|
|
cwd.SetFolder(ToUtf8(path.get()));
|
|
return cwd;
|
|
}
|
|
|
|
// TODO: Consider overriding DeleteFolderAndContents for speed and potentially
|
|
// better OS integration (recycle bin?)
|
|
/*
|
|
std::wstring temp_path16 = ToUtf16(temp_path.pathname());
|
|
temp_path16.append(1, '*');
|
|
temp_path16.append(1, '\0');
|
|
|
|
SHFILEOPSTRUCT file_op = { 0 };
|
|
file_op.wFunc = FO_DELETE;
|
|
file_op.pFrom = temp_path16.c_str();
|
|
file_op.fFlags = FOF_NOCONFIRMATION | FOF_NOERRORUI | FOF_SILENT;
|
|
return (0 == SHFileOperation(&file_op));
|
|
*/
|
|
|
|
} // namespace talk_base
|