SERVER-64603 Creates Skeleton for Renaming Database for Restore

4 files changed, 176 insertions, 0 deletions

diff --git a/src/mongo/db/commands/SConscript b/src/mongo/db/commands/SConscript
index ed43ec2a953..29e58008a5b 100644
--- a/src/mongo/db/commands/SConscript
+++ b/src/mongo/db/commands/SConscript
@@ -372,6 +372,7 @@ env.Library(
         "plan_cache_clear_command.cpp",
         "plan_cache_commands.cpp",
         "rename_collection_cmd.cpp",
+        "rename_database_for_restore_command.cpp",
         "run_aggregate.cpp",
         "sleep_command.cpp",
         "validate.cpp",
@@ -440,6 +441,7 @@ env.Library(
         'list_collections_filter',
         'list_databases_command',
         'rename_collection_idl',
+        'rename_database_for_restore_command_idl',
         'test_commands_enabled',
         'validate_db_metadata_command',
     ],
@@ -465,6 +467,16 @@ env.Library(
 )
 
 env.Library(
+    target='rename_database_for_restore_command_idl',
+    source=[
+        'rename_database_for_restore_command.idl',
+    ],
+    LIBDEPS_PRIVATE=[
+        '$BUILD_DIR/mongo/idl/idl_parser',
+    ],
+)
+
+env.Library(
     target='set_index_commit_quorum_idl',
     source=[
         'set_index_commit_quorum.idl',
diff --git a/src/mongo/db/commands/rename_database_for_restore_command.cpp b/src/mongo/db/commands/rename_database_for_restore_command.cpp
new file mode 100644
index 00000000000..91de5aa1b27
--- /dev/null
+++ b/src/mongo/db/commands/rename_database_for_restore_command.cpp
@@ -0,0 +1,114 @@
+/**
+ *    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.
+ */
+
+#define MONGO_LOGV2_DEFAULT_COMPONENT ::mongo::logv2::LogComponent::kCommand
+
+#include <string>
+
+#include "mongo/bson/bsonobj.h"
+#include "mongo/db/auth/authorization_session.h"
+#include "mongo/db/catalog/catalog_control.h"
+#include "mongo/db/commands.h"
+#include "mongo/db/commands/rename_database_for_restore_command_gen.h"
+#include "mongo/db/repl/replication_coordinator.h"
+#include "mongo/db/storage/storage_parameters_gen.h"
+#include "mongo/logv2/log.h"
+
+namespace mongo {
+namespace {
+
+class RenameDatabaseForRestoreCmd
+    : public BasicCommandWithRequestParser<RenameDatabaseForRestoreCmd> {
+public:
+    using Request = RenameDatabaseForRestoreCommand;
+
+    bool skipApiVersionCheck() const override {
+        // Internal command used by the restore procedure.
+        return true;
+    }
+
+    AllowedOnSecondary secondaryAllowed(ServiceContext*) const override {
+        return AllowedOnSecondary::kNever;
+    }
+
+    bool adminOnly() const {
+        return true;
+    }
+
+    bool supportsWriteConcern(const BSONObj& cmd) const override {
+        return false;
+    }
+
+    Status checkAuthForCommand(Client* client,
+                               const std::string& dbname,
+                               const BSONObj& cmdObj) const override {
+        if (!AuthorizationSession::get(client)->isAuthorizedForActionsOnResource(
+                ResourcePattern::forClusterResource(), ActionType::internal)) {
+            return Status(ErrorCodes::Unauthorized, "Unauthorized");
+        }
+
+        return Status::OK();
+    }
+
+    bool runWithRequestParser(OperationContext* opCtx,
+                              const std::string& db,
+                              const BSONObj& cmdObj,
+                              const RequestParser& requestParser,
+                              BSONObjBuilder& result) final {
+        uassert(ErrorCodes::CommandFailed,
+                "Cannot run the 'renameDatabaseForRestore' command when the "
+                "'featureFlagDatabaseRenameDuringRestore' is disabled.",
+                feature_flags::gDatabaseRenameDuringRestore.isEnabled(
+                    serverGlobalParams.featureCompatibility));
+
+        uassert(ErrorCodes::CommandFailed,
+                "This command can only be used in standalone mode",
+                !repl::ReplicationCoordinator::get(opCtx)->getSettings().usingReplSets());
+
+        uassert(ErrorCodes::CommandFailed,
+                "This command can only be run during a restore procedure",
+                storageGlobalParams.restore);
+
+        const auto* cmd = &requestParser.request();
+        auto from = cmd->getFrom();
+        auto to = cmd->getTo();
+
+        LOGV2(6460300, "CMD: renameDatabaseForRestore", "from"_attr = from, "to"_attr = to);
+
+        return true;
+    }
+
+    void validateResult(const BSONObj& resultObj) final {
+        return;
+    }
+
+} renameDatabaseForRestoreCmd;
+
+}  // namespace
+}  // namespace mongo
diff --git a/src/mongo/db/commands/rename_database_for_restore_command.idl b/src/mongo/db/commands/rename_database_for_restore_command.idl
new file mode 100644
index 00000000000..01af27396ee
--- /dev/null
+++ b/src/mongo/db/commands/rename_database_for_restore_command.idl
@@ -0,0 +1,49 @@
+# 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.
+#
+
+global:
+    cpp_namespace: "mongo"
+
+imports:
+    - "mongo/idl/basic_types.idl"
+
+commands:
+    renameDatabaseForRestore:
+        command_name: "renameDatabaseForRestore"
+        description: "Rename Database during Restore"
+        cpp_name: RenameDatabaseForRestoreCommand
+        namespace: ignored
+        api_version: ""
+        strict: true
+        fields:
+            from:
+                description: "Current Database Name to change"
+                type: namespacestring
+            to:
+                description: "New Database Name"
+                type: namespacestring
diff --git a/src/mongo/embedded/mongo_embedded/mongo_embedded_test.cpp b/src/mongo/embedded/mongo_embedded/mongo_embedded_test.cpp
index 7d728bf451a..9e55e9ea0a7 100644
--- a/src/mongo/embedded/mongo_embedded/mongo_embedded_test.cpp
+++ b/src/mongo/embedded/mongo_embedded/mongo_embedded_test.cpp
@@ -602,6 +602,7 @@ TEST_F(MongodbCAPITest, RunListCommands) {
                                           "refreshLogicalSessionCacheNow",
                                           "refreshSessions",
                                           "renameCollection",
+                                          "renameDatabaseForRestore",
                                           "repairDatabase",
                                           "serverStatus",
                                           "setParameter",