Files
scylladb/auth/transitional.cc
Jesse Haber-Kucharsky cd0553ca6a auth: Query custom options from the authenticator
None of the `authenticator` implementations we have support custom
options, but we should support this operation to support the relevant
CQL statements.
2018-05-09 21:12:50 -04:00

263 lines
9.0 KiB
C++

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Copyright (C) 2017 ScyllaDB
*
* Modified by ScyllaDB
*/
/*
* This file is part of Scylla.
*
* Scylla is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Scylla is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
*/
#include "auth/authenticated_user.hh"
#include "auth/authenticator.hh"
#include "auth/authorizer.hh"
#include "auth/default_authorizer.hh"
#include "auth/password_authenticator.hh"
#include "auth/permission.hh"
#include "db/config.hh"
#include "utils/class_registrator.hh"
namespace auth {
static const sstring PACKAGE_NAME("com.scylladb.auth.");
static const sstring& transitional_authenticator_name() {
static const sstring name = PACKAGE_NAME + "TransitionalAuthenticator";
return name;
}
static const sstring& transitional_authorizer_name() {
static const sstring name = PACKAGE_NAME + "TransitionalAuthorizer";
return name;
}
class transitional_authenticator : public authenticator {
std::unique_ptr<authenticator> _authenticator;
public:
static const sstring PASSWORD_AUTHENTICATOR_NAME;
transitional_authenticator(cql3::query_processor& qp, ::service::migration_manager& mm)
: transitional_authenticator(std::make_unique<password_authenticator>(qp, mm)) {
}
transitional_authenticator(std::unique_ptr<authenticator> a)
: _authenticator(std::move(a)) {
}
virtual future<> start() override {
return _authenticator->start();
}
virtual future<> stop() override {
return _authenticator->stop();
}
virtual const sstring& qualified_java_name() const override {
return transitional_authenticator_name();
}
virtual bool require_authentication() const override {
return true;
}
virtual authentication_option_set supported_options() const override {
return _authenticator->supported_options();
}
virtual authentication_option_set alterable_options() const override {
return _authenticator->alterable_options();
}
virtual future<authenticated_user> authenticate(const credentials_map& credentials) const override {
auto i = credentials.find(authenticator::USERNAME_KEY);
if ((i == credentials.end() || i->second.empty())
&& (!credentials.count(PASSWORD_KEY) || credentials.at(PASSWORD_KEY).empty())) {
// return anon user
return make_ready_future<authenticated_user>(anonymous_user());
}
return make_ready_future().then([this, &credentials] {
return _authenticator->authenticate(credentials);
}).handle_exception([](auto ep) {
try {
std::rethrow_exception(ep);
} catch (exceptions::authentication_exception&) {
// return anon user
return make_ready_future<authenticated_user>(anonymous_user());
}
});
}
virtual future<> create(stdx::string_view role_name, const authentication_options& options) const override {
return _authenticator->create(role_name, options);
}
virtual future<> alter(stdx::string_view role_name, const authentication_options& options) const override {
return _authenticator->alter(role_name, options);
}
virtual future<> drop(stdx::string_view role_name) const override {
return _authenticator->drop(role_name);
}
virtual future<custom_options> query_custom_options(stdx::string_view role_name) const override {
return _authenticator->query_custom_options(role_name);
}
virtual const resource_set& protected_resources() const override {
return _authenticator->protected_resources();
}
virtual ::shared_ptr<sasl_challenge> new_sasl_challenge() const override {
class sasl_wrapper : public sasl_challenge {
public:
sasl_wrapper(::shared_ptr<sasl_challenge> sasl)
: _sasl(std::move(sasl)) {
}
virtual bytes evaluate_response(bytes_view client_response) override {
try {
return _sasl->evaluate_response(client_response);
} catch (exceptions::authentication_exception&) {
_complete = true;
return {};
}
}
virtual bool is_complete() const override {
return _complete || _sasl->is_complete();
}
virtual future<authenticated_user> get_authenticated_user() const {
return futurize_apply([this] {
return _sasl->get_authenticated_user().handle_exception([](auto ep) {
try {
std::rethrow_exception(ep);
} catch (exceptions::authentication_exception&) {
// return anon user
return make_ready_future<authenticated_user>(anonymous_user());
}
});
});
}
private:
::shared_ptr<sasl_challenge> _sasl;
bool _complete = false;
};
return ::make_shared<sasl_wrapper>(_authenticator->new_sasl_challenge());
}
};
class transitional_authorizer : public authorizer {
std::unique_ptr<authorizer> _authorizer;
public:
transitional_authorizer(cql3::query_processor& qp, ::service::migration_manager& mm)
: transitional_authorizer(std::make_unique<default_authorizer>(qp, mm)) {
}
transitional_authorizer(std::unique_ptr<authorizer> a)
: _authorizer(std::move(a)) {
}
~transitional_authorizer() {
}
virtual future<> start() override {
return _authorizer->start();
}
virtual future<> stop() override {
return _authorizer->stop();
}
virtual const sstring& qualified_java_name() const override {
return transitional_authorizer_name();
}
virtual future<permission_set> authorize(const role_or_anonymous&, const resource&) const override {
static const permission_set transitional_permissions =
permission_set::of<
permission::CREATE,
permission::ALTER,
permission::DROP,
permission::SELECT,
permission::MODIFY>();
return make_ready_future<permission_set>(transitional_permissions);
}
virtual future<> grant(stdx::string_view s, permission_set ps, const resource& r) const override {
return _authorizer->grant(s, std::move(ps), r);
}
virtual future<> revoke(stdx::string_view s, permission_set ps, const resource& r) const override {
return _authorizer->revoke(s, std::move(ps), r);
}
virtual future<std::vector<permission_details>> list_all() const override {
return _authorizer->list_all();
}
virtual future<> revoke_all(stdx::string_view s) const override {
return _authorizer->revoke_all(s);
}
virtual future<> revoke_all(const resource& r) const override {
return _authorizer->revoke_all(r);
}
virtual const resource_set& protected_resources() const override {
return _authorizer->protected_resources();
}
};
}
//
// To ensure correct initialization order, we unfortunately need to use string literals.
//
static const class_registrator<
auth::authenticator,
auth::transitional_authenticator,
cql3::query_processor&,
::service::migration_manager&> transitional_authenticator_reg(auth::PACKAGE_NAME + "TransitionalAuthenticator");
static const class_registrator<
auth::authorizer,
auth::transitional_authorizer,
cql3::query_processor&,
::service::migration_manager&> transitional_authorizer_reg(auth::PACKAGE_NAME + "TransitionalAuthorizer");