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/**
* Copyright (C) 2022-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/bson/oid.h"
#include "mongo/db/auth/authorization_manager_impl.h"
#include "mongo/db/auth/authorization_session.h"
#include "mongo/db/auth/authorization_session_impl.h"
#include "mongo/db/auth/authz_manager_external_state_mock.h"
#include "mongo/db/auth/security_token.h"
#include "mongo/db/multitenancy.h"
#include "mongo/db/multitenancy_gen.h"
#include "mongo/db/service_context_test_fixture.h"
#include "mongo/unittest/unittest.h"
namespace mongo {
/**
* Encapsulation thwarting helper for authorizing a user without
* having to set up any externalstate mocks or transport layers.
*/
class AuthorizationSessionImplTestHelper {
public:
/**
* Synthesize a user with the useTenant privilege and add them to the authorization session.
*/
static void grantUseTenant(OperationContext* opCtx) {
User user(UserName("useTenant", "admin"));
user.setPrivileges(
{Privilege(ResourcePattern::forClusterResource(), ActionType::useTenant)});
auto* as =
dynamic_cast<AuthorizationSessionImpl*>(AuthorizationSession::get(opCtx->getClient()));
as->_authenticatedUsers.add(std::move(user));
as->_updateInternalAuthorizationState();
}
};
namespace {
class DollarTenantDecorationTest : public ScopedGlobalServiceContextForTest, public unittest::Test {
protected:
void setUp() final {
auto authzManagerState = std::make_unique<AuthzManagerExternalStateMock>();
auto authzManager = std::make_unique<AuthorizationManagerImpl>(
getServiceContext(), std::move(authzManagerState));
authzManager->setAuthEnabled(true);
AuthorizationManager::set(getServiceContext(), std::move(authzManager));
client = getServiceContext()->makeClient("test");
opCtxPtr = getServiceContext()->makeOperationContext(client.get());
opCtx = opCtxPtr.get();
}
BSONObj makeSecurityToken(const UserName& userName) {
constexpr auto authUserFieldName = auth::SecurityToken::kAuthenticatedUserFieldName;
auto authUser = userName.toBSON(true /* serialize token */);
ASSERT_EQ(authUser["tenant"_sd].type(), jstOID);
return auth::signSecurityToken(BSON(authUserFieldName << authUser));
}
ServiceContext::UniqueClient client;
ServiceContext::UniqueOperationContext opCtxPtr;
OperationContext* opCtx;
};
TEST_F(DollarTenantDecorationTest, ParseDollarTenantFromRequestSecurityTokenAlreadySet) {
gMultitenancySupport = true;
// Ensure the security token is set on the opCtx.
const auto kTenantId = TenantId(OID::gen());
auto token = makeSecurityToken(UserName("user", "admin", kTenantId));
auth::readSecurityTokenMetadata(opCtx, token);
ASSERT(getActiveTenant(opCtx));
ASSERT_EQ(*getActiveTenant(opCtx), kTenantId);
// Grant authorization to set $tenant.
AuthorizationSessionImplTestHelper::grantUseTenant(opCtx);
// The dollarTenantDecoration should not be set because the security token is already set.
const auto kTenantParameter = OID::gen();
auto opMsgRequest = OpMsgRequest::fromDBAndBody("test", BSON("$tenant" << kTenantParameter));
ASSERT_THROWS_CODE(
parseDollarTenantFromRequest(opCtx, opMsgRequest), AssertionException, 6223901);
// getActiveTenant should still return the tenantId in the security token.
ASSERT(getActiveTenant(opCtx));
ASSERT_EQ(*getActiveTenant(opCtx), kTenantId);
}
TEST_F(DollarTenantDecorationTest, ParseDollarTenantFromRequestUnauthorized) {
gMultitenancySupport = true;
const auto kOid = OID::gen();
// We are not authenticated at all.
auto opMsgRequest = OpMsgRequest::fromDBAndBody("test", BSON("$tenant" << kOid));
ASSERT_THROWS_CODE(parseDollarTenantFromRequest(opCtx, opMsgRequest),
AssertionException,
ErrorCodes::Unauthorized);
ASSERT(!getActiveTenant(opCtx));
}
TEST_F(DollarTenantDecorationTest, ParseDollarTenantMultitenancySupportDisabled) {
gMultitenancySupport = false;
const auto kOid = OID::gen();
// Grant authorization to set $tenant.
AuthorizationSessionImplTestHelper::grantUseTenant(opCtx);
// TenantId is passed as the '$tenant' parameter. "multitenancySupport" is disabled, so we
// should throw when attempting to set this tenantId on the opCtx.
auto opMsgRequestParameter = OpMsgRequest::fromDBAndBody("test", BSON("$tenant" << kOid));
ASSERT_THROWS_CODE(parseDollarTenantFromRequest(opCtx, opMsgRequestParameter),
AssertionException,
ErrorCodes::InvalidOptions);
ASSERT(!getActiveTenant(opCtx));
}
TEST_F(DollarTenantDecorationTest, ParseDollarTenantFromRequestSuccess) {
gMultitenancySupport = true;
const auto kOid = OID::gen();
// Grant authorization to set $tenant.
AuthorizationSessionImplTestHelper::grantUseTenant(opCtx);
// The tenantId should be successfully set because "multitenancySupport" is enabled and we're
// authorized.
auto opMsgRequest = OpMsgRequest::fromDBAndBody("test", BSON("$tenant" << kOid));
parseDollarTenantFromRequest(opCtx, opMsgRequest);
auto tenantId = getActiveTenant(opCtx);
ASSERT(tenantId);
ASSERT_EQ(tenantId->toString(), kOid.toString());
}
} // namespace
} // namespace mongo
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