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#include <Interpreters/Access/InterpreterCreateQuotaQuery.h>
#include <Access/AccessControl.h>
#include <Access/Common/AccessFlags.h>
#include <Access/Quota.h>
#include <Interpreters/Context.h>
#include <Interpreters/executeDDLQueryOnCluster.h>
#include <Interpreters/removeOnClusterClauseIfNeeded.h>
#include <Parsers/Access/ASTCreateQuotaQuery.h>
#include <Parsers/Access/ASTRolesOrUsersSet.h>
#include <base/range.h>
#include <boost/range/algorithm/find_if.hpp>
#include <boost/range/algorithm/sort.hpp>
#include <boost/range/algorithm/upper_bound.hpp>
namespace DB
{
namespace ErrorCodes
{
extern const int ACCESS_ENTITY_ALREADY_EXISTS;
}
namespace
{
void updateQuotaFromQueryImpl(
Quota & quota,
const ASTCreateQuotaQuery & query,
const String & override_name,
const std::optional<RolesOrUsersSet> & override_to_roles)
{
if (!override_name.empty())
quota.setName(override_name);
else if (!query.new_name.empty())
quota.setName(query.new_name);
else if (query.names.size() == 1)
quota.setName(query.names.front());
if (query.key_type)
quota.key_type = *query.key_type;
auto & quota_all_limits = quota.all_limits;
for (const auto & query_limits : query.all_limits)
{
auto duration = query_limits.duration;
auto it = boost::range::find_if(quota_all_limits, [&](const Quota::Limits & x) { return x.duration == duration; });
if (query_limits.drop)
{
if (it != quota_all_limits.end())
quota_all_limits.erase(it);
continue;
}
if (it == quota_all_limits.end())
{
/// We keep `all_limits` sorted by duration.
it = quota_all_limits.insert(
boost::range::upper_bound(
quota_all_limits,
duration,
[](const std::chrono::seconds & lhs, const Quota::Limits & rhs) { return lhs < rhs.duration; }),
Quota::Limits{});
it->duration = duration;
}
auto & quota_limits = *it;
quota_limits.randomize_interval = query_limits.randomize_interval;
for (auto quota_type : collections::range(QuotaType::MAX))
{
auto quota_type_i = static_cast<size_t>(quota_type);
quota_limits.max[quota_type_i] = query_limits.max[quota_type_i];
}
}
if (override_to_roles)
quota.to_roles = *override_to_roles;
else if (query.roles)
quota.to_roles = *query.roles;
}
}
BlockIO InterpreterCreateQuotaQuery::execute()
{
const auto updated_query_ptr = removeOnClusterClauseIfNeeded(query_ptr, getContext());
auto & query = updated_query_ptr->as<ASTCreateQuotaQuery &>();
auto & access_control = getContext()->getAccessControl();
getContext()->checkAccess(query.alter ? AccessType::ALTER_QUOTA : AccessType::CREATE_QUOTA);
if (!query.cluster.empty())
{
query.replaceCurrentUserTag(getContext()->getUserName());
return executeDDLQueryOnCluster(updated_query_ptr, getContext());
}
std::optional<RolesOrUsersSet> roles_from_query;
if (query.roles)
roles_from_query = RolesOrUsersSet{*query.roles, access_control, getContext()->getUserID()};
IAccessStorage * storage = &access_control;
MultipleAccessStorage::StoragePtr storage_ptr;
if (!query.storage_name.empty())
{
storage_ptr = access_control.getStorageByName(query.storage_name);
storage = storage_ptr.get();
}
if (query.alter)
{
auto update_func = [&](const AccessEntityPtr & entity) -> AccessEntityPtr
{
auto updated_quota = typeid_cast<std::shared_ptr<Quota>>(entity->clone());
updateQuotaFromQueryImpl(*updated_quota, query, {}, roles_from_query);
return updated_quota;
};
if (query.if_exists)
{
auto ids = storage->find<Quota>(query.names);
storage->tryUpdate(ids, update_func);
}
else
storage->update(storage->getIDs<Quota>(query.names), update_func);
}
else
{
std::vector<AccessEntityPtr> new_quotas;
for (const String & name : query.names)
{
auto new_quota = std::make_shared<Quota>();
updateQuotaFromQueryImpl(*new_quota, query, name, roles_from_query);
new_quotas.emplace_back(std::move(new_quota));
}
if (!query.storage_name.empty())
{
for (const auto & name : query.names)
{
if (auto another_storage_ptr = access_control.findExcludingStorage(AccessEntityType::QUOTA, name, storage_ptr))
throw Exception(ErrorCodes::ACCESS_ENTITY_ALREADY_EXISTS, "Quota {} already exists in storage {}", name, another_storage_ptr->getStorageName());
}
}
if (query.if_not_exists)
storage->tryInsert(new_quotas);
else if (query.or_replace)
storage->insertOrReplace(new_quotas);
else
storage->insert(new_quotas);
}
return {};
}
void InterpreterCreateQuotaQuery::updateQuotaFromQuery(Quota & quota, const ASTCreateQuotaQuery & query)
{
updateQuotaFromQueryImpl(quota, query, {}, {});
}
}
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