126 lines
3.2 KiB
C++
126 lines
3.2 KiB
C++
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/*
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----
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This file is part of SECONDO.
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Copyright (C) 2017,
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Faculty of Mathematics and Computer Science,
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Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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//[$][\$]
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//[_][\_]
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*/
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#include <fstream>
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#include "FileTransferServer.h"
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#include "FileTransferKeywords.h"
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#include "SocketIO.h"
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#include "StringUtils.h"
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using namespace std;
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namespace distributed2 {
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FileTransferServer::FileTransferServer(int _port) :
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Server(_port) {
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}
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int FileTransferServer::start() {
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listener = Socket::CreateGlobal("localhost", stringutils::int2str(port));
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if (!listener->IsOk()) {
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return 1;
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}
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server = listener->Accept();
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if (!server->IsOk()) {
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return 2;
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}
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return communicate();
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}
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int FileTransferServer::communicate() {
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try {
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iostream& io = server->GetSocketStream();
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io << FileTransferKeywords::FileTransferServer() << endl;
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io.flush();
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string line;
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getline(io, line);
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if (line == FileTransferKeywords::Cancel()) {
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return true;
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}
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if (line != FileTransferKeywords::FileTransferClient()) {
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cerr << "Protocol error" << endl;
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return 3;
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}
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getline(io, line);
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if (line == FileTransferKeywords::SendFile()) {
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return sendFile(io);
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} else if (line == FileTransferKeywords::ReceiveFile()) {
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return receiveFile(io);
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} else {
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cerr << "protocol error" << endl;
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return 4;
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}
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} catch (...) {
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cerr << "Exception in server occured during communination" << endl;
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return 5;
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}
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}
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int FileTransferServer::sendFile(iostream& io){
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string filename;
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return sendFile(io,filename);
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}
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int FileTransferServer::sendFile(iostream& io, std::string& outfilename) {
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// client ask for a file
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getline(io, outfilename);
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ifstream in(outfilename.c_str(), ios::binary);
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if (!in) {
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io << FileTransferKeywords::FileNotFound() << endl;
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io.flush();
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return 6;
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}
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in.seekg(0, in.end);
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size_t length = in.tellg();
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in.seekg(0, in.beg);
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io << FileTransferKeywords::Data() << endl;
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io << stringutils::any2str(length) << endl;
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io.flush();
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size_t bufsize = 1048576;
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char buffer[bufsize];
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while (!in.eof() && in.good()) {
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in.read(buffer, bufsize);
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size_t r = in.gcount();
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io.write(buffer, r);
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}
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in.close();
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io << FileTransferKeywords::EndData() << endl;
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io.flush();
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return 0;
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}
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bool FileTransferServer::receiveFile(iostream& io) {
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// not implemented yet
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return 7;
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}
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} /* namespace distributed2 */
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