1 files changed, 137 insertions, 0 deletions
diff --git a/src/mongo/db/commands/clone.cpp b/src/mongo/db/commands/clone.cpp
new file mode 100644
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+++ b/src/mongo/db/commands/clone.cpp
@@ -0,0 +1,137 @@
+/**
+*    Copyright (C) 2008 10gen Inc.
+*
+*    This program is free software: you can redistribute it and/or  modify
+*    it under the terms of the GNU Affero General Public License, version 3,
+*    as published by the Free Software Foundation.
+*
+*    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
+*    GNU Affero General Public License for more details.
+*
+*    You should have received a copy of the GNU Affero General Public License
+*    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*
+*    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 GNU Affero General 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/pch.h"
+
+#include "mongo/base/init.h"
+#include "mongo/base/status.h"
+#include "mongo/bson/util/builder.h"
+#include "mongo/client/dbclientinterface.h"
+#include "mongo/db/auth/action_set.h"
+#include "mongo/db/auth/resource_pattern.h"
+#include "mongo/db/auth/authorization_session.h"
+#include "mongo/db/catalog/collection.h"
+#include "mongo/db/cloner.h"
+#include "mongo/db/commands.h"
+#include "mongo/db/commands/copydb.h"
+#include "mongo/db/commands/rename_collection.h"
+#include "mongo/db/db.h"
+#include "mongo/db/dbhelpers.h"
+#include "mongo/db/index_builder.h"
+#include "mongo/db/instance.h"
+#include "mongo/db/jsobj.h"
+#include "mongo/db/kill_current_op.h"
+#include "mongo/db/namespace_string.h"
+#include "mongo/db/repl/oplog.h"
+#include "mongo/db/repl/oplogreader.h"
+#include "mongo/db/pdfile.h"
+#include "mongo/db/operation_context_impl.h"
+#include "mongo/db/storage_options.h"
+
+namespace mongo {
+
+    /* Usage:
+       mydb.$cmd.findOne( { clone: "fromhost" } );
+       Note: doesn't work with authentication enabled, except as internal operation or for
+       old-style users for backwards compatibility.
+    */
+    class CmdClone : public Command {
+    public:
+        CmdClone() : Command("clone") { }
+
+        virtual bool slaveOk() const {
+            return false;
+        }
+
+        virtual bool isWriteCommandForConfigServer() const { return true; }
+
+        virtual void help( stringstream &help ) const {
+            help << "clone this database from an instance of the db on another host\n";
+            help << "{ clone : \"host13\" }";
+        }
+
+        virtual Status checkAuthForCommand(ClientBasic* client,
+                                           const std::string& dbname,
+                                           const BSONObj& cmdObj) {
+            ActionSet actions;
+            actions.addAction(ActionType::insert);
+            actions.addAction(ActionType::createIndex);
+            if (!client->getAuthorizationSession()->isAuthorizedForActionsOnResource(
+                    ResourcePattern::forDatabaseName(dbname), actions)) {
+                return Status(ErrorCodes::Unauthorized, "Unauthorized");
+            }
+            return Status::OK();
+        }
+
+        virtual bool run(OperationContext* txn,
+                         const string& dbname,
+                         BSONObj& cmdObj,
+                         int,
+                         string& errmsg,
+                         BSONObjBuilder& result,
+                         bool fromRepl) {
+
+            string from = cmdObj.getStringField("clone");
+            if ( from.empty() )
+                return false;
+
+            CloneOptions opts;
+            opts.fromDB = dbname;
+            opts.logForRepl = ! fromRepl;
+
+            // See if there's any collections we should ignore
+            if( cmdObj["collsToIgnore"].type() == Array ){
+                BSONObjIterator it( cmdObj["collsToIgnore"].Obj() );
+
+                while( it.more() ){
+                    BSONElement e = it.next();
+                    if( e.type() == String ){
+                        opts.collsToIgnore.insert( e.String() );
+                    }
+                }
+            }
+
+            set<string> clonedColls;
+
+            Lock::DBWrite dbXLock(dbname);
+            Client::Context context( dbname );
+
+            Cloner cloner;
+            bool rval = cloner.go(txn, context, from, opts, &clonedColls, errmsg);
+
+            BSONArrayBuilder barr;
+            barr.append( clonedColls );
+
+            result.append( "clonedColls", barr.arr() );
+
+            return rval;
+
+        }
+    } cmdClone;
+
+} // namespace mongo