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/*
Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic 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.
DCP-o-matic 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 DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "scp_uploader.h"
#include "exceptions.h"
#include "job.h"
#include "config.h"
#include "cross.h"
#include "warnings.h"
#include <dcp/compose.h>
#include <sys/stat.h>
#include "i18n.h"
using std::function;
using std::min;
using std::shared_ptr;
using std::string;
SCPUploader::SCPUploader (function<void (string)> set_status, function<void (float)> set_progress)
: Uploader (set_status, set_progress)
{
_session = ssh_new ();
if (!_session) {
throw NetworkError (dcp::compose(_("SSH error [%1]"), "ssh_new"));
}
ssh_options_set (_session, SSH_OPTIONS_HOST, Config::instance()->tms_ip().c_str());
ssh_options_set (_session, SSH_OPTIONS_USER, Config::instance()->tms_user().c_str());
int const port = 22;
ssh_options_set (_session, SSH_OPTIONS_PORT, &port);
int r = ssh_connect (_session);
if (r != SSH_OK) {
throw NetworkError (dcp::compose(_("Could not connect to server %1 (%2)"), Config::instance()->tms_ip(), ssh_get_error(_session)));
}
DCPOMATIC_DISABLE_WARNINGS
r = ssh_is_server_known (_session);
if (r == SSH_SERVER_ERROR) {
throw NetworkError (dcp::compose(_("SSH error [%1] (%2)"), "ssh_is_server_known", ssh_get_error(_session)));
}
DCPOMATIC_ENABLE_WARNINGS
r = ssh_userauth_password (_session, 0, Config::instance()->tms_password().c_str ());
if (r != SSH_AUTH_SUCCESS) {
throw NetworkError (dcp::compose(_("Failed to authenticate with server (%1)"), ssh_get_error(_session)));
}
_scp = ssh_scp_new (_session, SSH_SCP_WRITE | SSH_SCP_RECURSIVE, Config::instance()->tms_path().c_str());
if (!_scp) {
throw NetworkError (dcp::compose(_("SSH error [%1] (%2)"), "ssh_scp_new", ssh_get_error(_session)));
}
r = ssh_scp_init (_scp);
if (r != SSH_OK) {
throw NetworkError (dcp::compose(_("SSH error [%1] (%2)"), "ssh_scp_init", ssh_get_error(_session)));
}
}
SCPUploader::~SCPUploader ()
{
ssh_scp_free (_scp);
ssh_disconnect (_session);
ssh_free (_session);
}
void
SCPUploader::create_directory (boost::filesystem::path directory)
{
/* Use generic_string so that we get forward-slashes in the path, even on Windows */
int const r = ssh_scp_push_directory (_scp, directory.generic_string().c_str(), S_IRWXU);
if (r != SSH_OK) {
throw NetworkError (dcp::compose(_("Could not create remote directory %1 (%2)"), directory, ssh_get_error(_session)));
}
}
void
SCPUploader::upload_file (boost::filesystem::path from, boost::filesystem::path to, boost::uintmax_t& transferred, boost::uintmax_t total_size)
{
auto to_do = boost::filesystem::file_size (from);
/* Use generic_string so that we get forward-slashes in the path, even on Windows */
ssh_scp_push_file (_scp, to.generic_string().c_str(), to_do, S_IRUSR | S_IWUSR);
auto f = fopen_boost (from, "rb");
if (f == nullptr) {
throw NetworkError (dcp::compose(_("Could not open %1 to send"), from));
}
boost::uintmax_t buffer_size = 64 * 1024;
char buffer[buffer_size];
while (to_do > 0) {
int const t = min (to_do, buffer_size);
size_t const read = fread (buffer, 1, t, f);
if (read != size_t (t)) {
fclose (f);
throw ReadFileError (from);
}
int const r = ssh_scp_write (_scp, buffer, t);
if (r != SSH_OK) {
fclose (f);
throw NetworkError (dcp::compose(_("Could not write to remote file (%1)"), ssh_get_error(_session)));
}
to_do -= t;
transferred += t;
if (total_size > 0) {
_set_progress ((double) transferred / total_size);
}
}
fclose (f);
}
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