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/**
* Copyright (C) 2018-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.
*/
#pragma once
#include <functional>
#include <memory>
#include <string>
#include <vector>
#include "mongo/base/status.h"
#include "mongo/db/auth/authorization_manager.h"
#include "mongo/db/auth/authorization_manager_impl.h"
#include "mongo/db/auth/privilege.h"
#include "mongo/db/auth/privilege_format.h"
#include "mongo/db/auth/role_name.h"
#include "mongo/db/auth/user.h"
#include "mongo/db/auth/user_name.h"
#include "mongo/db/database_name.h"
#include "mongo/db/jsobj.h"
namespace mongo {
class AuthzSessionExternalState;
class OperationContext;
/**
* Public interface for a class that encapsulates all the information related to system
* state not stored in AuthorizationManager. This is primarily to make AuthorizationManager
* easier to test as well as to allow different implementations for mongos and mongod.
*/
class AuthzManagerExternalState {
AuthzManagerExternalState(const AuthzManagerExternalState&) = delete;
AuthzManagerExternalState& operator=(const AuthzManagerExternalState&) = delete;
public:
using UniqueExternalState = std::unique_ptr<AuthzManagerExternalState>;
static UniqueExternalState create();
using ShimFn = std::function<UniqueExternalState(UniqueExternalState)>;
static void prependShim(ShimFn&& shim);
static void appendShim(ShimFn&& shim);
virtual ~AuthzManagerExternalState();
/**
* Initializes the external state object. Must be called after construction and before
* calling other methods. Object may not be used after this method returns something other
* than Status::OK().
*/
virtual Status initialize(OperationContext* opCtx) {
return Status::OK();
}
/**
* Creates an external state manipulator for an AuthorizationSession whose
* AuthorizationManager uses this object as its own external state manipulator.
*/
virtual std::unique_ptr<AuthzSessionExternalState> makeAuthzSessionExternalState(
AuthorizationManager* authzManager) = 0;
/**
* Retrieves the schema version of the persistent data describing users and roles.
* Will leave *outVersion unmodified on non-OK status return values.
*/
virtual Status hasValidStoredAuthorizationVersion(OperationContext* opCtx,
BSONObj* foundVersionDoc) = 0;
/**
* Retrieves the schema version of the persistent data describing users and roles.
* Modifies *outVersion if status is NoMatchingDocument.
*/
virtual Status getStoredAuthorizationVersion(OperationContext* opCtx, int* outVersion) = 0;
/**
* Writes into "result" a document describing the requested user and returns Status::OK().
* The caller is required to provide all information necessary to unique identify the request
* for a user, including the user's name and any roles which the user must possess via
* out-of-band attestation. The returned description includes the user credentials and
* customData, if present, the user's role membership and delegation information, a full
* list of the user's privileges, and a full list of the user's roles, including those
* roles held implicitly through other roles (indirect roles). In the event that some of this
* information is inconsistent, the document will contain a "warnings" array,
* with std::string messages describing inconsistencies.
*
* If the user does not exist, returns ErrorCodes::UserNotFound.
*/
virtual Status getUserDescription(OperationContext* opCtx,
const UserRequest& user,
BSONObj* result) = 0;
/**
* Fetches and/or synthesizes a User object similar to above eliding additional
* marshalling of data to BSON and back.
*/
virtual StatusWith<User> getUserObject(OperationContext* opCtx, const UserRequest& userReq) = 0;
/**
* Checks to see if the named roles exist.
*/
virtual Status rolesExist(OperationContext* opCtx, const std::vector<RoleName>& roleNames) = 0;
using ResolveRoleOption = AuthorizationManager::ResolveRoleOption;
using ResolvedRoleData = AuthorizationManager::ResolvedRoleData;
/**
* Collects (in)direct roles, privileges, and restrictions for a set of start roles.
*/
virtual StatusWith<ResolvedRoleData> resolveRoles(OperationContext* opCtx,
const std::vector<RoleName>& roleNames,
ResolveRoleOption option) = 0;
/**
* Fetches and returns objects representing named roles.
*
* Each BSONObj in the $result vector contains a full role description
* as retrieved from admin.system.roles plus inherited role/privilege
* information as appropriate.
*/
virtual Status getRolesDescription(OperationContext* opCtx,
const std::vector<RoleName>& roles,
PrivilegeFormat showPrivileges,
AuthenticationRestrictionsFormat,
std::vector<BSONObj>* result) = 0;
/**
* Fetches named roles and synthesizes them into a fragment of a user document.
*
* The document synthesized into $result looks like a complete user document
* representing the $roles specified and their subordinates, but without
* an actual user name or credentials.
*/
virtual Status getRolesAsUserFragment(OperationContext* opCtx,
const std::vector<RoleName>& roles,
AuthenticationRestrictionsFormat,
BSONObj* result) = 0;
/**
* Writes into "result" documents describing the roles that are defined on the given
* database. If showPrivileges is kOmit or kShowPrivileges, then a vector of BSON documents are
* returned, where each document includes the other roles a particular role is a
* member of, including those role memberships held implicitly through other roles
* (indirect roles). If showPrivileges is kShowPrivileges, then the description documents
* will also include a full list of the roles' privileges. If showBuiltinRoles is true, then
* the result array will contain description documents for all the builtin roles for the given
* database, if it is false the result will just include user defined roles. In the event that
* some of the information in a given role description is inconsistent, the document will
* contain a "warnings" array, with std::string messages describing inconsistencies.
*/
virtual Status getRoleDescriptionsForDB(OperationContext* opCtx,
const DatabaseName& dbname,
PrivilegeFormat showPrivileges,
AuthenticationRestrictionsFormat,
bool showBuiltinRoles,
std::vector<BSONObj>* result) = 0;
/**
* Returns true if there exists at least one user document in the system. If `tenantId` is
* set, checks whether a doc associated with this tenantId exists.
*/
virtual Status hasAnyUserDocuments(OperationContext* opCtx,
const boost::optional<TenantId>& tenantId) = 0;
/**
* Returns true if there exists at least one privilege document in the system. If `tenantId` is
* set, checks whether a doc associated with this tenantId exists.
*/
virtual bool hasAnyPrivilegeDocuments(OperationContext* opCtx) = 0;
virtual void logOp(OperationContext* opCtx,
AuthorizationManagerImpl* authManager,
StringData op,
const NamespaceString& ns,
const BSONObj& o,
const BSONObj* o2) {}
virtual void setInUserManagementCommand(OperationContext* opCtx, bool val) {}
protected:
AuthzManagerExternalState(); // This class should never be instantiated directly.
/**
* Construct a Status about one or more unknown roles.
*/
static Status makeRoleNotFoundStatus(const stdx::unordered_set<RoleName>&);
};
} // namespace mongo
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