132 lines
5.4 KiB
C++
132 lines
5.4 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 <vector>
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#include <seastar/core/future-util.hh>
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#include "list_permissions_statement.hh"
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#include "auth/authorizer.hh"
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#include "auth/auth.hh"
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#include "cql3/result_set.hh"
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#include "transport/messages/result_message.hh"
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cql3::statements::list_permissions_statement::list_permissions_statement(
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auth::permission_set permissions,
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std::experimental::optional<auth::data_resource> resource,
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std::experimental::optional<sstring> username, bool recursive)
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: _permissions(permissions), _resource(std::move(resource)), _username(
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std::move(username)), _recursive(recursive) {
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}
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void cql3::statements::list_permissions_statement::validate(distributed<service::storage_proxy>& proxy, const service::client_state& state) {
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// a check to ensure the existence of the user isn't being leaked by user existence check.
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state.ensure_not_anonymous();
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}
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future<> cql3::statements::list_permissions_statement::check_access(const service::client_state& state) {
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auto f = make_ready_future();
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if (_username) {
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f = 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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});
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}
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return f.then([this, &state] {
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if (_resource) {
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mayme_correct_resource(*_resource, state);
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if (!_resource->exists()) {
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throw exceptions::invalid_request_exception(sprint("%s doesn't exist", *_resource));
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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::list_permissions_statement::execute(distributed<service::storage_proxy>& proxy, service::query_state& state, const query_options& options) {
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static auto make_column = [](sstring name) {
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return ::make_shared<column_specification>(auth::auth::AUTH_KS, "permissions", ::make_shared<column_identifier>(std::move(name), true), utf8_type);
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};
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static thread_local const std::vector<::shared_ptr<column_specification>> metadata({
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make_column("username"), make_column("resource"), make_column("permission")
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});
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typedef std::experimental::optional<auth::data_resource> opt_resource;
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std::vector<opt_resource> resources;
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auto r = _resource;
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for (;;) {
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resources.emplace_back(r);
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if (!r || !r->has_parent() || !_recursive) {
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break;
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}
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r = r->get_parent();
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}
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return map_reduce(resources, [&state, this](opt_resource r) {
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return auth::authorizer::get().list(state.get_client_state().user(), _permissions, std::move(r), _username);
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}, std::vector<auth::permission_details>(), [](std::vector<auth::permission_details> details, std::vector<auth::permission_details> pd) {
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details.insert(details.end(), pd.begin(), pd.end());
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return std::move(details);
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}).then([this](std::vector<auth::permission_details> details) {
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std::sort(details.begin(), details.end());
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auto rs = std::make_unique<result_set>(metadata);
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for (auto& v : details) {
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// Make sure names are sorted.
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auto names = auth::permissions::to_strings(v.permissions);
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for (auto& p : std::set<sstring>(names.begin(), names.end())) {
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rs->add_row(
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std::vector<bytes_opt> { utf8_type->decompose(
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v.user), utf8_type->decompose(
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v.resource.to_string()),
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utf8_type->decompose(p), });
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}
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}
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auto rows = ::make_shared<transport::messages::result_message::rows>(std::move(rs));
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return ::shared_ptr<transport::messages::result_message>(std::move(rows));
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});
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}
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