replicatetcpserver.cc

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/* Copyright (C) 2008,2010,2011 Olly Betts
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see
 * <https://www.gnu.org/licenses/>.
 */
 
#include <config.h>
 
#include "replicatetcpserver.h"
 
#include <xapian/error.h>
#include "api/replication.h"
#include "remoteconnection.h"
 
using namespace std;
 
ReplicateTcpServer::ReplicateTcpServer(const string & host, int port,
                                       const string & path_)
    : TcpServer(host, port, false, false), path(path_)
{
}
 
void
ReplicateTcpServer::handle_one_connection(int socket)
{
    RemoteConnection client(socket, -1);
    try {
        // Read start_revision from the client.
        string start_revision;
        if (client.get_message(start_revision, 0.0) != 'R') {
            throw Xapian::NetworkError("Bad replication client message");
        }
 
        // Read dbname from the client.
        string dbname;
        if (client.get_message(dbname, 0.0) != 'D') {
            throw Xapian::NetworkError("Bad replication client message (2)");
        }
        if (dbname.find("..") != string::npos) {
            throw Xapian::NetworkError("dbname contained '..'");
        }
 
        string dbpath(path);
        dbpath += '/';
        dbpath += dbname;
        Xapian::DatabaseMaster master(dbpath);
        master.write_changesets_to_fd(socket, start_revision, NULL);
    } catch (...) {
        // Ignore exceptions.
    }
}