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#include "clickhouse_config.h"
#include <Common/logger_useful.h>
#include <IO/ReadHelpers.h>
#include <IO/WriteHelpers.h>
#include <Interpreters/Context.h>
#include <Disks/DiskFactory.h>
#if USE_AWS_S3
#include <base/getFQDNOrHostName.h>
#include <Disks/DiskLocal.h>
#include <Disks/ObjectStorages/IMetadataStorage.h>
#include <Disks/ObjectStorages/DiskObjectStorage.h>
#include <Disks/ObjectStorages/DiskObjectStorageCommon.h>
#include <Disks/ObjectStorages/S3/S3ObjectStorage.h>
#include <Disks/ObjectStorages/S3/diskSettings.h>
#include <Disks/ObjectStorages/MetadataStorageFromDisk.h>
#include <Disks/ObjectStorages/MetadataStorageFromPlainObjectStorage.h>
#include <Core/ServerUUID.h>
#include <Common/Macros.h>
namespace DB
{
namespace ErrorCodes
{
extern const int BAD_ARGUMENTS;
extern const int LOGICAL_ERROR;
}
namespace
{
class CheckAccess
{
public:
static bool checkBatchRemove(S3ObjectStorage & storage, const String & key_with_trailing_slash)
{
/// NOTE: key_with_trailing_slash is the disk prefix, it is required
/// because access is done via S3ObjectStorage not via IDisk interface
/// (since we don't have disk yet).
const String path = fmt::format("{}clickhouse_remove_objects_capability_{}", key_with_trailing_slash, getServerUUID());
StoredObject object(path);
try
{
auto file = storage.writeObject(object, WriteMode::Rewrite);
file->write("test", 4);
file->finalize();
}
catch (...)
{
try
{
storage.removeObject(object);
}
catch (...)
{
}
return true; /// We don't have write access, therefore no information about batch remove.
}
try
{
/// Uses `DeleteObjects` request (batch delete).
storage.removeObjects({object});
return true;
}
catch (const Exception &)
{
try
{
storage.removeObject(object);
}
catch (...)
{
}
return false;
}
}
private:
static String getServerUUID()
{
UUID server_uuid = ServerUUID::get();
if (server_uuid == UUIDHelpers::Nil)
throw Exception(ErrorCodes::LOGICAL_ERROR, "Server UUID is not initialized");
return toString(server_uuid);
}
};
}
void registerDiskS3(DiskFactory & factory, bool global_skip_access_check)
{
auto creator = [global_skip_access_check](
const String & name,
const Poco::Util::AbstractConfiguration & config,
const String & config_prefix,
ContextPtr context,
const DisksMap & /*map*/) -> DiskPtr
{
String endpoint = context->getMacros()->expand(config.getString(config_prefix + ".endpoint"));
S3::URI uri(endpoint);
if (!uri.key.ends_with('/'))
uri.key.push_back('/');
S3Capabilities s3_capabilities = getCapabilitiesFromConfig(config, config_prefix);
std::shared_ptr<S3ObjectStorage> s3_storage;
String type = config.getString(config_prefix + ".type");
chassert(type == "s3" || type == "s3_plain");
MetadataStoragePtr metadata_storage;
auto settings = getSettings(config, config_prefix, context);
auto client = getClient(config, config_prefix, context, *settings);
if (type == "s3_plain")
{
/// send_metadata changes the filenames (includes revision), while
/// s3_plain do not care about this, and expect that the file name
/// will not be changed.
///
/// And besides, send_metadata does not make sense for s3_plain.
if (config.getBool(config_prefix + ".send_metadata", false))
throw Exception(ErrorCodes::BAD_ARGUMENTS, "s3_plain does not supports send_metadata");
s3_storage = std::make_shared<S3PlainObjectStorage>(std::move(client), std::move(settings), uri.version_id, s3_capabilities, uri.bucket, uri.endpoint);
metadata_storage = std::make_shared<MetadataStorageFromPlainObjectStorage>(s3_storage, uri.key);
}
else
{
s3_storage = std::make_shared<S3ObjectStorage>(std::move(client), std::move(settings), uri.version_id, s3_capabilities, uri.bucket, uri.endpoint);
auto [metadata_path, metadata_disk] = prepareForLocalMetadata(name, config, config_prefix, context);
metadata_storage = std::make_shared<MetadataStorageFromDisk>(metadata_disk, uri.key);
}
/// NOTE: should we still perform this check for clickhouse-disks?
bool skip_access_check = global_skip_access_check || config.getBool(config_prefix + ".skip_access_check", false);
if (!skip_access_check)
{
/// If `support_batch_delete` is turned on (default), check and possibly switch it off.
if (s3_capabilities.support_batch_delete && !CheckAccess::checkBatchRemove(*s3_storage, uri.key))
{
LOG_WARNING(
&Poco::Logger::get("registerDiskS3"),
"Storage for disk {} does not support batch delete operations, "
"so `s3_capabilities.support_batch_delete` was automatically turned off during the access check. "
"To remove this message set `s3_capabilities.support_batch_delete` for the disk to `false`.",
name
);
s3_storage->setCapabilitiesSupportBatchDelete(false);
}
}
DiskObjectStoragePtr s3disk = std::make_shared<DiskObjectStorage>(
name,
uri.key,
type == "s3" ? "DiskS3" : "DiskS3Plain",
std::move(metadata_storage),
std::move(s3_storage),
config,
config_prefix);
s3disk->startup(context, skip_access_check);
return s3disk;
};
factory.registerDiskType("s3", creator);
factory.registerDiskType("s3_plain", creator);
}
}
#else
void registerDiskS3(DB::DiskFactory &, bool /* global_skip_access_check */) {}
#endif
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