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110 lines
3 KiB
C++
110 lines
3 KiB
C++
/*
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* Copyright (C) 2020 Luciano Iam <lucianito@gmail.com>
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*
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* This program 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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*
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* This program 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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*
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* You should have received a copy of the/GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <iomanip>
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#include <iostream>
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#include <sstream>
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#include <glibmm/fileutils.h>
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#include <glibmm/miscutils.h>
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#include "pbd/xml++.h"
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#include "manifest.h"
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static const char* const manifest_filename = "manifest.xml";
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SurfaceManifest::SurfaceManifest (std::string path)
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: _path (path)
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{
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XMLTree tree;
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std::string xml_path = Glib::build_filename (_path, manifest_filename);
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if (!tree.read (xml_path.c_str())) {
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#ifndef NDEBUG
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std::cerr << "SurfaceManifest: could not parse " << xml_path << std::endl;
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#endif
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return;
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}
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XMLNodeList nlist = tree.root ()->children ();
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for (XMLNodeConstIterator niter = nlist.begin(); niter != nlist.end(); ++niter) {
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XMLNode* node = *niter;
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std::string name = node->name ();
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std::string value;
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node->get_property ("value", value);
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if (name == "Name") {
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_name = value;
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} else if (name == "Description") {
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_description = value;
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} else if (name == "Version") {
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_version = value;
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}
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}
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if (_name.empty () || _description.empty () || _version.empty ()) {
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#ifndef NDEBUG
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std::cerr << "SurfaceManifest: missing properties in " << xml_path << std::endl;
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#endif
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return;
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}
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_valid = true;
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}
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std::string
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SurfaceManifest::to_json ()
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{
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std::stringstream ss;
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ss << "{"
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<< "\"path\":\"" << Glib::path_get_basename (_path) << "\""
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<< ",\"name\":\"" << escape_json (_name) << "\""
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<< ",\"description\":\"" << escape_json (_description) << "\""
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<< ",\"version\":\"" << escape_json (_version) << "\""
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<< "}";
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return ss.str ();
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}
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bool
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SurfaceManifest::exists_at_path (std::string path)
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{
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std::string xml_path = Glib::build_filename (path, manifest_filename);
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return Glib::file_test (xml_path, Glib::FILE_TEST_EXISTS);
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}
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/* adapted from https://stackoverflow.com/questions/7724448/simple-json-string-escape-for-c
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CC BY-SA 4.0 license */
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std::string
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SurfaceManifest::escape_json (const std::string &s) {
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std::ostringstream o;
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for (std::string::const_iterator it = s.begin(); it != s.end(); ++it) {
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if (*it == '"' || *it == '\\' || ('\x00' <= *it && *it <= '\x1f')) {
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o << "\\u" << std::hex << std::setw (4) << std::setfill ('0') << static_cast<int>(*it);
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} else {
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o << *it;
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}
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}
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return o.str ();
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}
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