GeoIPDatabase *GeoIPDatabase::load(const QString &filename, QString &error)
{
GeoIPDatabase *db = nullptr;
QFile file(filename);
if (file.size() > MAX_FILE_SIZE) {
error = tr("Unsupported database file size.");
return 0;
}
if (!file.open(QFile::ReadOnly)) {
error = file.errorString();
return 0;
}
db = new GeoIPDatabase(file.size());
if (file.read(reinterpret_cast<char *>(db->m_data), db->m_size) != db->m_size) {
error = file.errorString();
delete db;
return 0;
}
if (!db->parseMetadata(db->readMetadata(), error) || !db->loadDB(error)) {
delete db;
return 0;
}
return db;
}
GeoIPDatabase *GeoIPDatabase::load(const QByteArray &data, QString &error)
{
GeoIPDatabase *db = nullptr;
if (data.size() > MAX_FILE_SIZE) {
error = tr("Unsupported database file size.");
return 0;
}
db = new GeoIPDatabase(data.size());
memcpy(reinterpret_cast<char *>(db->m_data), data.constData(), db->m_size);
if (!db->parseMetadata(db->readMetadata(), error) || !db->loadDB(error)) {
delete db;
return 0;
}
return db;
}