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livetrax/libs/surfaces/websockets/manifest.cc

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/*
* Copyright (C) 2020 Luciano Iam <lucianito@gmail.com>
*
* 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <iostream>
#include <sstream>
#include <glibmm/fileutils.h>
#include <glibmm/miscutils.h>
#include "pbd/xml++.h"
#include "manifest.h"
#include "resources.h"
#include "json.h"
static const char* const manifest_filename = "manifest.xml";
SurfaceManifest::SurfaceManifest (std::string path)
: _path (path)
{
XMLTree tree;
std::string xml_path = Glib::build_filename (_path, manifest_filename);
if (!tree.read (xml_path.c_str())) {
#ifndef NDEBUG
std::cerr << "SurfaceManifest: could not parse " << xml_path << std::endl;
#endif
return;
}
XMLNodeList nlist = tree.root ()->children ();
for (XMLNodeConstIterator niter = nlist.begin(); niter != nlist.end(); ++niter) {
XMLNode* node = *niter;
std::string name = node->name ();
std::string value;
node->get_property ("value", value);
if (name == "Name") {
_name = value;
} else if (name == "Description") {
_description = value;
} else if (name == "Version") {
_version = value;
}
}
if (_name.empty () || _description.empty () || _version.empty ()) {
#ifndef NDEBUG
std::cerr << "SurfaceManifest: missing properties in " << xml_path << std::endl;
#endif
return;
}
_valid = true;
}
std::string
SurfaceManifest::to_json ()
{
std::stringstream ss;
ss << "{"
<< "\"path\":\"" << Json::escape (Glib::path_get_basename (_path)) << "\""
<< ",\"name\":\"" << Json::escape (_name) << "\""
<< ",\"description\":\"" << Json::escape (_description) << "\""
<< ",\"version\":\"" << Json::escape (_version) << "\""
<< "}";
return ss.str ();
}
bool
SurfaceManifest::exists_at_path (std::string path)
{
std::string xml_path = Glib::build_filename (path, manifest_filename);
return Glib::file_test (xml_path, Glib::FILE_TEST_EXISTS);
}