SERVER-13641 break up cloner.cpp into commands and functionality to make usage clearer

1 files changed, 133 insertions, 0 deletions

diff --git a/src/mongo/db/commands/copydb_getnonce.cpp b/src/mongo/db/commands/copydb_getnonce.cpp
new file mode 100644
index 00000000000..a3ea4e00fd9
--- /dev/null
+++ b/src/mongo/db/commands/copydb_getnonce.cpp
@@ -0,0 +1,133 @@
+/**
+*    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 {
+
+    // SERVER-4328 todo review for concurrency
+    // :(
+    thread_specific_ptr<DBClientBase> authConn_;
+
+    /* Usage:
+     * admindb.$cmd.findOne( { copydbgetnonce: 1, fromhost: <connection string> } );
+     *
+     * Run against the mongod that is the intended target for the "copydb" command.  Used to get a
+     * nonce from the source of a "copydb" operation for authentication purposes.  See the
+     * description of the "copydb" command below.
+     */
+    class CmdCopyDbGetNonce : public Command {
+    public:
+        CmdCopyDbGetNonce() : Command("copydbgetnonce") { }
+
+        virtual bool adminOnly() const {
+            return true;
+        }
+
+        virtual bool slaveOk() const {
+            return false;
+        }
+
+        virtual bool isWriteCommandForConfigServer() const { return false; }
+
+        virtual void addRequiredPrivileges(const std::string& dbname,
+                                           const BSONObj& cmdObj,
+                                           std::vector<Privilege>* out) {
+            // No auth required
+        }
+
+        virtual void help( stringstream &help ) const {
+            help << "get a nonce for subsequent copy db request from secure server\n";
+            help << "usage: {copydbgetnonce: 1, fromhost: <hostname>}";
+        }
+
+        virtual bool run(OperationContext* txn,
+                         const string&,
+                         BSONObj& cmdObj,
+                         int,
+                         string& errmsg,
+                         BSONObjBuilder& result,
+                         bool fromRepl) {
+
+            string fromhost = cmdObj.getStringField("fromhost");
+            if ( fromhost.empty() ) {
+                /* copy from self */
+                stringstream ss;
+                ss << "localhost:" << serverGlobalParams.port;
+                fromhost = ss.str();
+            }
+
+            BSONObj ret;
+
+            ConnectionString cs = ConnectionString::parse(fromhost, errmsg);
+            if (!cs.isValid()) {
+                return false;
+            }
+
+            authConn_.reset(cs.connect(errmsg));
+            if (!authConn_.get()) {
+                return false;
+            }
+
+            if( !authConn_->runCommand( "admin", BSON( "getnonce" << 1 ), ret ) ) {
+                errmsg = "couldn't get nonce " + ret.toString();
+                return false;
+            }
+
+            result.appendElements( ret );
+            return true;
+        }
+
+    } cmdCopyDBGetNonce;
+
+} // namespace mongo