111 lines
4.5 KiB
C++
111 lines
4.5 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Copyright 2016 ScyllaDB
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*
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* Modified by ScyllaDB
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*/
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/*
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* This file is part of Scylla.
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*
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* Scylla is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Scylla is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <boost/range/adaptor/map.hpp>
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#include "alter_user_statement.hh"
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#include "auth/auth.hh"
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#include "auth/authenticator.hh"
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cql3::statements::alter_user_statement::alter_user_statement(sstring username, ::shared_ptr<user_options> opts, std::experimental::optional<bool> superuser)
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: _username(std::move(username))
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, _opts(std::move(opts))
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, _superuser(std::move(superuser))
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{}
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void cql3::statements::alter_user_statement::validate(distributed<service::storage_proxy>& proxy, const service::client_state& state) {
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_opts->validate();
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if (!_superuser && _opts->empty()) {
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throw exceptions::invalid_request_exception("ALTER USER can't be empty");
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}
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// validate login here before checkAccess to avoid leaking user existence to anonymous users.
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state.ensure_not_anonymous();
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// cannot validate user existence here, because
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// we need to query -> continuation, and this is not a continuation method
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}
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future<> cql3::statements::alter_user_statement::check_access(const service::client_state& state) {
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auto user = state.user();
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if (_superuser && user->name() == _username) {
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// using contractions in error messages is the ultimate sign of lowbrowness.
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// however, dtests depend on matching the exception messages. So we keep them despite
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// my disgust.
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throw exceptions::unauthorized_exception("You aren't allowed to alter your own superuser status");
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}
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return user->is_super().then([this, user](bool is_super) {
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if (_superuser && !is_super) {
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throw exceptions::unauthorized_exception("Only superusers are allowed to alter superuser status");
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}
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if (!is_super && user->name() != _username) {
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throw exceptions::unauthorized_exception("You aren't allowed to alter this user");
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}
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if (!is_super) {
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for (auto o : _opts->options() | boost::adaptors::map_keys) {
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if (!auth::authenticator::get().alterable_options().contains(o)) {
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throw exceptions::unauthorized_exception(sprint("You aren't allowed to alter {} option", o));
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}
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}
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}
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});
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}
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future<::shared_ptr<transport::messages::result_message>>
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cql3::statements::alter_user_statement::execute(distributed<service::storage_proxy>& proxy, service::query_state& state, const query_options& options) {
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return auth::auth::is_existing_user(_username).then([this](bool exists) {
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if (!exists) {
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throw exceptions::invalid_request_exception(sprint("User %s doesn't exist", _username));
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}
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auto f = _opts->options().empty() ? make_ready_future() : auth::authenticator::get().alter(_username, _opts->options());
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if (_superuser) {
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f = f.then([this] {
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return auth::auth::insert_user(_username, *_superuser);
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});
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}
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return f.then([] { return make_ready_future<::shared_ptr<transport::messages::result_message>>(); });
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});
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}
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