SQLiteFileSystem.cpp [plain text]
#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
namespace WebCore {
SQLiteFileSystem::SQLiteFileSystem()
{
}
String SQLiteFileSystem::appendDatabaseFileNameToPath(const String& path, const String& 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::directoryName(fileName);
return ensureDatabaseDirectoryExists(dir);
}
return FileSystem::fileExists(fileName);
}
bool SQLiteFileSystem::deleteEmptyDatabaseDirectory(const String& path)
{
return FileSystem::deleteEmptyDirectory(path);
}
bool SQLiteFileSystem::deleteDatabaseFile(const String& fileName)
{
String walFileName = makeString(fileName, "-wal"_s);
String shmFileName = makeString(fileName, "-shm"_s);
FileSystem::deleteFile(fileName);
FileSystem::deleteFile(walFileName);
FileSystem::deleteFile(shmFileName);
return !FileSystem::fileExists(fileName) && !FileSystem::fileExists(walFileName) && !FileSystem::fileExists(shmFileName);
}
#if PLATFORM(IOS_FAMILY)
bool SQLiteFileSystem::truncateDatabaseFile(sqlite3* database)
{
return sqlite3_file_control(database, 0, SQLITE_TRUNCATE_DATABASE, 0) == SQLITE_OK;
}
#endif
long long SQLiteFileSystem::getDatabaseFileSize(const String& fileName)
{
long long fileSize = 0;
long long totalSize = 0;
if (FileSystem::getFileSize(fileName, fileSize))
totalSize += fileSize;
if (FileSystem::getFileSize(makeString(fileName, "-wal"_s), fileSize))
totalSize += fileSize;
if (FileSystem::getFileSize(makeString(fileName, "-shm"_s), fileSize))
totalSize += fileSize;
return totalSize;
}
Optional<WallTime> SQLiteFileSystem::databaseCreationTime(const String& fileName)
{
return FileSystem::getFileCreationTime(fileName);
}
Optional<WallTime> SQLiteFileSystem::databaseModificationTime(const String& fileName)
{
return FileSystem::getFileModificationTime(fileName);
}
String SQLiteFileSystem::computeHashForFileName(const String& fileName)
{
auto cryptoDigest = PAL::CryptoDigest::create(PAL::CryptoDigest::Algorithm::SHA_256);
cryptoDigest->addBytes(fileName.utf8().data(), fileName.utf8().length());
auto digest = cryptoDigest->computeHash();
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);
}
}