xapian-core/net/replicatetcpserver.cc

   1 /** @file
   2  * @brief TCP/IP replication server class.
   3  */
   4 /* Copyright (C) 2008,2010,2011 Olly Betts
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 of the
   9  * License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 #include <config.h>
  22
  23 #include "replicatetcpserver.h"
  24
  25 #include <xapian/error.h>
  26 #include "api/replication.h"
  27 #include "remoteconnection.h"
  28
  29 using namespace std;
  30
  31 ReplicateTcpServer::ReplicateTcpServer(const string & host, int port,
  32                                        const string & path_)
  33     : TcpServer(host, port, false, false), path(path_)
  34 {
  35 }
  36
  37 ReplicateTcpServer::~ReplicateTcpServer() {
  38 }
  39
  40 void
  41 ReplicateTcpServer::handle_one_connection(int socket)
  42 {
  43     RemoteConnection client(socket, -1);
  44     try {
  45         // Read start_revision from the client.
  46         string start_revision;
  47         if (client.get_message(start_revision, 0.0) != 'R') {
  48             throw Xapian::NetworkError("Bad replication client message");
  49         }
  50
  51         // Read dbname from the client.
  52         string dbname;
  53         if (client.get_message(dbname, 0.0) != 'D') {
  54             throw Xapian::NetworkError("Bad replication client message (2)");
  55         }
  56         if (dbname.find("..") != string::npos) {
  57             throw Xapian::NetworkError("dbname contained '..'");
  58         }
  59
  60         string dbpath(path);
  61         dbpath += '/';
  62         dbpath += dbname;
  63         Xapian::DatabaseMaster master(dbpath);
  64         master.write_changesets_to_fd(socket, start_revision, NULL);
  65     } catch (...) {
  66         // Ignore exceptions.
  67     }
  68 }