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#include "clickhouse_config.h"
#include <Backups/BackupFactory.h>
#include <Common/Exception.h>
#if USE_AWS_S3
#include <Backups/BackupIO_S3.h>
#include <Backups/BackupImpl.h>
#include <IO/Archives/hasRegisteredArchiveFileExtension.h>
#include <Interpreters/Context.h>
#include <Poco/Util/AbstractConfiguration.h>
#include <filesystem>
#endif
namespace DB
{
namespace fs = std::filesystem;
namespace ErrorCodes
{
extern const int BAD_ARGUMENTS;
extern const int NUMBER_OF_ARGUMENTS_DOESNT_MATCH;
extern const int SUPPORT_IS_DISABLED;
}
#if USE_AWS_S3
namespace
{
String removeFileNameFromURL(String & url)
{
Poco::URI url2{url};
String path = url2.getPath();
size_t slash_pos = path.find_last_of('/');
String file_name = path.substr(slash_pos + 1);
path.resize(slash_pos + 1);
url2.setPath(path);
url = url2.toString();
return file_name;
}
}
#endif
void registerBackupEngineS3(BackupFactory & factory)
{
auto creator_fn = []([[maybe_unused]] const BackupFactory::CreateParams & params) -> std::unique_ptr<IBackup>
{
#if USE_AWS_S3
const String & id_arg = params.backup_info.id_arg;
const auto & args = params.backup_info.args;
String s3_uri, access_key_id, secret_access_key;
if (!id_arg.empty())
{
const auto & config = params.context->getConfigRef();
auto config_prefix = "named_collections." + id_arg;
if (!config.has(config_prefix))
throw Exception(ErrorCodes::BAD_ARGUMENTS, "There is no collection named `{}` in config", id_arg);
s3_uri = config.getString(config_prefix + ".url");
access_key_id = config.getString(config_prefix + ".access_key_id", "");
secret_access_key = config.getString(config_prefix + ".secret_access_key", "");
if (config.has(config_prefix + ".filename"))
s3_uri = fs::path(s3_uri) / config.getString(config_prefix + ".filename");
if (args.size() > 1)
throw Exception(ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH, "Backup S3 requires 1 or 2 arguments: named_collection, [filename]");
if (args.size() == 1)
s3_uri = fs::path(s3_uri) / args[0].safeGet<String>();
}
else
{
if ((args.size() != 1) && (args.size() != 3))
throw Exception(ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH,
"Backup S3 requires 1 or 3 arguments: url, [access_key_id, secret_access_key]");
s3_uri = args[0].safeGet<String>();
if (args.size() >= 3)
{
access_key_id = args[1].safeGet<String>();
secret_access_key = args[2].safeGet<String>();
}
}
BackupImpl::ArchiveParams archive_params;
if (hasRegisteredArchiveFileExtension(s3_uri))
{
if (params.is_internal_backup)
throw Exception(ErrorCodes::SUPPORT_IS_DISABLED, "Using archives with backups on clusters is disabled");
archive_params.archive_name = removeFileNameFromURL(s3_uri);
archive_params.compression_method = params.compression_method;
archive_params.compression_level = params.compression_level;
archive_params.password = params.password;
}
else
{
if (!params.password.empty())
throw Exception(ErrorCodes::BAD_ARGUMENTS, "Password is not applicable, backup cannot be encrypted");
}
if (params.open_mode == IBackup::OpenMode::READ)
{
auto reader = std::make_shared<BackupReaderS3>(S3::URI{s3_uri},
access_key_id,
secret_access_key,
params.allow_s3_native_copy,
params.read_settings,
params.write_settings,
params.context);
return std::make_unique<BackupImpl>(
params.backup_info,
archive_params,
params.base_backup_info,
reader,
params.context,
params.use_same_s3_credentials_for_base_backup);
}
else
{
auto writer = std::make_shared<BackupWriterS3>(S3::URI{s3_uri},
access_key_id,
secret_access_key,
params.allow_s3_native_copy,
params.s3_storage_class,
params.read_settings,
params.write_settings,
params.context);
return std::make_unique<BackupImpl>(
params.backup_info,
archive_params,
params.base_backup_info,
writer,
params.context,
params.is_internal_backup,
params.backup_coordination,
params.backup_uuid,
params.deduplicate_files,
params.use_same_s3_credentials_for_base_backup);
}
#else
throw Exception(ErrorCodes::SUPPORT_IS_DISABLED, "S3 support is disabled");
#endif
};
factory.registerBackupEngine("S3", creator_fn);
}
}
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