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/*
* Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
* Copyright (C) 2008 Collabora, Ltd. All rights reserved.
*
* 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. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 APPLE OR ITS CONTRIBUTORS 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 "config.h"
#include "FileSystem.h"
#include "NotImplemented.h"
#include "PathWalker.h"
#include "PlatformString.h"
#include <wtf/HashMap.h>
#include <wtf/text/CString.h>
#include <wtf/text/StringConcatenate.h>
#include <windows.h>
#include <winbase.h>
#include <shlobj.h>
#include <shlwapi.h>
namespace WebCore {
static bool statFile(String path, struct _stat64& st)
{
ASSERT_ARG(path, !path.isNull());
return !_wstat64(path.charactersWithNullTermination(), &st) && (st.st_mode & _S_IFMT) == _S_IFREG;
}
bool getFileSize(const String& path, long long& result)
{
struct _stat64 sb;
if (!statFile(path, sb))
return false;
result = sb.st_size;
return true;
}
bool getFileModificationTime(const String& path, time_t& result)
{
struct _stat64 st;
if (!statFile(path, st))
return false;
result = st.st_mtime;
return true;
}
bool fileExists(const String& path)
{
struct _stat64 st;
return statFile(path, st);
}
bool deleteFile(const String& path)
{
String filename = path;
return !!DeleteFileW(filename.charactersWithNullTermination());
}
bool deleteEmptyDirectory(const String& path)
{
String filename = path;
return !!RemoveDirectoryW(filename.charactersWithNullTermination());
}
String pathByAppendingComponent(const String& path, const String& component)
{
Vector<UChar> buffer(MAX_PATH);
if (path.length() + 1 > buffer.size())
return String();
memcpy(buffer.data(), path.characters(), path.length() * sizeof(UChar));
buffer[path.length()] = '\0';
String componentCopy = component;
if (!PathAppendW(buffer.data(), componentCopy.charactersWithNullTermination()))
return String();
buffer.resize(wcslen(buffer.data()));
return String::adopt(buffer);
}
CString fileSystemRepresentation(const String&)
{
return "";
}
bool makeAllDirectories(const String& path)
{
String fullPath = path;
if (SHCreateDirectoryEx(0, fullPath.charactersWithNullTermination(), 0) != ERROR_SUCCESS) {
DWORD error = GetLastError();
if (error != ERROR_FILE_EXISTS && error != ERROR_ALREADY_EXISTS) {
LOG_ERROR("Failed to create path %s", path.ascii().data());
return false;
}
}
return true;
}
String homeDirectoryPath()
{
notImplemented();
return "";
}
String pathGetFileName(const String& path)
{
return String(::PathFindFileName(String(path).charactersWithNullTermination()));
}
String directoryName(const String& path)
{
return path.left(path.length() - pathGetFileName(path).length());
}
static String bundleName()
{
static bool initialized;
static String name = "WebKit";
if (!initialized) {
initialized = true;
if (CFBundleRef bundle = CFBundleGetMainBundle())
if (CFTypeRef bundleExecutable = CFBundleGetValueForInfoDictionaryKey(bundle, kCFBundleExecutableKey))
if (CFGetTypeID(bundleExecutable) == CFStringGetTypeID())
name = reinterpret_cast<CFStringRef>(bundleExecutable);
}
return name;
}
static String storageDirectory(DWORD pathIdentifier)
{
Vector<UChar> buffer(MAX_PATH);
if (FAILED(SHGetFolderPathW(0, pathIdentifier | CSIDL_FLAG_CREATE, 0, 0, buffer.data())))
return String();
buffer.resize(wcslen(buffer.data()));
String directory = String::adopt(buffer);
static const String companyNameDirectory = "Apple Computer\\";
directory = pathByAppendingComponent(directory, companyNameDirectory + bundleName());
if (!makeAllDirectories(directory))
return String();
return directory;
}
static String cachedStorageDirectory(DWORD pathIdentifier)
{
static HashMap<DWORD, String> directories;
HashMap<DWORD, String>::iterator it = directories.find(pathIdentifier);
if (it != directories.end())
return it->second;
String directory = storageDirectory(pathIdentifier);
directories.add(pathIdentifier, directory);
return directory;
}
String openTemporaryFile(const String&, PlatformFileHandle& handle)
{
handle = INVALID_HANDLE_VALUE;
char tempPath[MAX_PATH];
int tempPathLength = ::GetTempPathA(WTF_ARRAY_LENGTH(tempPath), tempPath);
if (tempPathLength <= 0 || tempPathLength > WTF_ARRAY_LENGTH(tempPath))
return String();
HCRYPTPROV hCryptProv = 0;
if (!CryptAcquireContext(&hCryptProv, 0, 0, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
return String();
char proposedPath[MAX_PATH];
while (1) {
char tempFile[] = "XXXXXXXX.tmp"; // Use 8.3 style name (more characters aren't helpful due to 8.3 short file names)
const int randomPartLength = 8;
if (!CryptGenRandom(hCryptProv, randomPartLength, reinterpret_cast<BYTE*>(tempFile)))
break;
// Limit to valid filesystem characters, also excluding others that could be problematic, like punctuation.
// don't include both upper and lowercase since Windows file systems are typically not case sensitive.
const char validChars[] = "0123456789abcdefghijklmnopqrstuvwxyz";
for (int i = 0; i < randomPartLength; ++i)
tempFile[i] = validChars[tempFile[i] % (sizeof(validChars) - 1)];
ASSERT(strlen(tempFile) == sizeof(tempFile) - 1);
if (!PathCombineA(proposedPath, tempPath, tempFile))
break;
// use CREATE_NEW to avoid overwriting an existing file with the same name
handle = CreateFileA(proposedPath, GENERIC_READ | GENERIC_WRITE, 0, 0, CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0);
if (!isHandleValid(handle) && GetLastError() == ERROR_ALREADY_EXISTS)
continue;
break;
}
CryptReleaseContext(hCryptProv, 0);
if (!isHandleValid(handle))
return String();
return String::fromUTF8(proposedPath);
}
PlatformFileHandle openFile(const String& path, FileOpenMode mode)
{
DWORD desiredAccess = 0;
DWORD creationDisposition = 0;
switch (mode) {
case OpenForRead:
desiredAccess = GENERIC_READ;
creationDisposition = OPEN_EXISTING;
case OpenForWrite:
desiredAccess = GENERIC_WRITE;
creationDisposition = CREATE_ALWAYS;
default:
ASSERT_NOT_REACHED();
}
String destination = path;
return CreateFile(destination.charactersWithNullTermination(), desiredAccess, 0, 0, creationDisposition, FILE_ATTRIBUTE_NORMAL, 0);
}
void closeFile(PlatformFileHandle& handle)
{
if (isHandleValid(handle)) {
::CloseHandle(handle);
handle = invalidPlatformFileHandle;
}
}
int writeToFile(PlatformFileHandle handle, const char* data, int length)
{
if (!isHandleValid(handle))
return -1;
DWORD bytesWritten;
bool success = WriteFile(handle, data, length, &bytesWritten, 0);
if (!success)
return -1;
return static_cast<int>(bytesWritten);
}
bool unloadModule(PlatformModule module)
{
return ::FreeLibrary(module);
}
String localUserSpecificStorageDirectory()
{
return cachedStorageDirectory(CSIDL_LOCAL_APPDATA);
}
String roamingUserSpecificStorageDirectory()
{
return cachedStorageDirectory(CSIDL_APPDATA);
}
bool safeCreateFile(const String& path, CFDataRef data)
{
// Create a temporary file.
WCHAR tempDirPath[MAX_PATH];
if (!GetTempPathW(WTF_ARRAY_LENGTH(tempDirPath), tempDirPath))
return false;
WCHAR tempPath[MAX_PATH];
if (!GetTempFileNameW(tempDirPath, L"WEBKIT", 0, tempPath))
return false;
HANDLE tempFileHandle = CreateFileW(tempPath, GENERIC_READ | GENERIC_WRITE, 0, 0, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
if (tempFileHandle == INVALID_HANDLE_VALUE)
return false;
// Write the data to this temp file.
DWORD written;
if (!WriteFile(tempFileHandle, CFDataGetBytePtr(data), static_cast<DWORD>(CFDataGetLength(data)), &written, 0))
return false;
CloseHandle(tempFileHandle);
// Copy the temp file to the destination file.
String destination = path;
if (!MoveFileExW(tempPath, destination.charactersWithNullTermination(), MOVEFILE_REPLACE_EXISTING | MOVEFILE_COPY_ALLOWED))
return false;
return true;
}
Vector<String> listDirectory(const String& directory, const String& filter)
{
Vector<String> entries;
PathWalker walker(directory, filter);
if (!walker.isValid())
return entries;
do {
if (walker.data().dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
continue;
entries.append(makeString(directory, "\\", reinterpret_cast<const UChar*>(walker.data().cFileName)));
} while (walker.step());
return entries;
}
} // namespace WebCore
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