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/*
* Copyright (C) 2009 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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 "SQLiteFileSystem.h"
#include "SQLiteDatabase.h"
#include "SQLiteStatement.h"
#include <pal/crypto/CryptoDigest.h>
#include <sqlite3.h>
#include <wtf/FileSystem.h>
#if PLATFORM(IOS_FAMILY)
#include <pal/spi/ios/SQLite3SPI.h>
#endif
#if PLATFORM(COCOA)
#include <sys/xattr.h>
#endif
namespace WebCore {
static constexpr std::array<const char *, 3> databaseFileSuffixes { "", "-shm", "-wal" };
SQLiteFileSystem::SQLiteFileSystem()
{
}
String SQLiteFileSystem::appendDatabaseFileNameToPath(StringView path, StringView fileName)
{
return FileSystem::pathByAppendingComponent(path, fileName);
}
bool SQLiteFileSystem::ensureDatabaseDirectoryExists(const String& path)
{
if (path.isEmpty())
return false;
return FileSystem::makeAllDirectories(path);
}
bool SQLiteFileSystem::ensureDatabaseFileExists(const String& fileName, bool checkPathOnly)
{
if (fileName.isEmpty())
return false;
if (checkPathOnly) {
String dir = FileSystem::parentPath(fileName);
return ensureDatabaseDirectoryExists(dir);
}
return FileSystem::fileExists(fileName);
}
bool SQLiteFileSystem::deleteEmptyDatabaseDirectory(const String& path)
{
return FileSystem::deleteEmptyDirectory(path);
}
bool SQLiteFileSystem::deleteDatabaseFile(const String& filePath)
{
bool fileExists = false;
for (const auto* suffix : databaseFileSuffixes) {
String path = filePath + suffix;
FileSystem::deleteFile(path);
fileExists |= FileSystem::fileExists(path);
}
return !fileExists;
}
#if PLATFORM(COCOA)
void SQLiteFileSystem::setCanSuspendLockedFileAttribute(const String& filePath)
{
for (const auto* suffix : databaseFileSuffixes) {
String path = filePath + suffix;
char excluded = 0xff;
auto result = setxattr(FileSystem::fileSystemRepresentation(path).data(), "com.apple.runningboard.can-suspend-locked", &excluded, sizeof(excluded), 0, 0);
if (result < 0 && !strcmp(suffix, ""))
RELEASE_LOG_ERROR(SQLDatabase, "SQLiteFileSystem::setCanSuspendLockedFileAttribute: setxattr failed: %" PUBLIC_LOG_STRING, strerror(errno));
}
}
#endif
bool SQLiteFileSystem::moveDatabaseFile(const String& oldFilePath, const String& newFilePath)
{
bool allMoved = true;
for (const auto* suffix : databaseFileSuffixes)
allMoved &= FileSystem::moveFile(makeString(oldFilePath, suffix), makeString(newFilePath, suffix));
return allMoved;
}
#if PLATFORM(IOS_FAMILY)
bool SQLiteFileSystem::truncateDatabaseFile(sqlite3* database)
{
return sqlite3_file_control(database, 0, SQLITE_TRUNCATE_DATABASE, 0) == SQLITE_OK;
}
#endif
uint64_t SQLiteFileSystem::databaseFileSize(const String& filePath)
{
uint64_t totalSize = 0;
for (const auto* suffix : databaseFileSuffixes) {
if (auto fileSize = FileSystem::fileSize(filePath + suffix))
totalSize += *fileSize;
}
return totalSize;
}
std::optional<WallTime> SQLiteFileSystem::databaseCreationTime(const String& fileName)
{
return FileSystem::fileCreationTime(fileName);
}
std::optional<WallTime> SQLiteFileSystem::databaseModificationTime(const String& fileName)
{
return FileSystem::fileModificationTime(fileName);
}
String SQLiteFileSystem::computeHashForFileName(StringView fileName)
{
auto cryptoDigest = PAL::CryptoDigest::create(PAL::CryptoDigest::Algorithm::SHA_256);
auto utf8FileName = fileName.utf8();
cryptoDigest->addBytes(utf8FileName.data(), utf8FileName.length());
auto digest = cryptoDigest->computeHash();
// Convert digest to hex.
char* start = 0;
unsigned digestLength = digest.size();
CString result = CString::newUninitialized(digestLength * 2, start);
char* buffer = start;
for (size_t i = 0; i < digestLength; ++i) {
snprintf(buffer, 3, "%02X", digest.at(i));
buffer += 2;
}
return String::fromUTF8(result);
}
} // namespace WebCore
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