| /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ |
| /** |
| * Copyright (C) 2014 Named Data Networking Project |
| * See COPYING for copyright and distribution information. |
| */ |
| |
| |
| #include "config-file.hpp" |
| |
| #include <boost/property_tree/ini_parser.hpp> |
| #include <boost/filesystem.hpp> |
| |
| namespace ndn { |
| |
| ConfigFile::ConfigFile() |
| : m_path(findConfigFile()) |
| { |
| if (open()) |
| { |
| parse(); |
| close(); |
| } |
| } |
| |
| ConfigFile::~ConfigFile() |
| { |
| if (m_input.is_open()) |
| { |
| m_input.close(); |
| } |
| } |
| |
| boost::filesystem::path |
| ConfigFile::findConfigFile() |
| { |
| using namespace boost::filesystem; |
| |
| path home(std::getenv("HOME")); |
| if (!home.empty()) |
| { |
| home /= ".ndn/client.conf"; |
| if (exists(home)) |
| { |
| return absolute(home); |
| } |
| } |
| |
| #ifdef NDN_CPP_SYSCONFDIR |
| path sysconfdir(NDN_CPP_SYSCONFDIR); |
| sysconfdir /= "ndn/client.conf"; |
| |
| if (exists(sysconfdir)) |
| { |
| return absolute(sysconfdir); |
| } |
| #endif // NDN_CPP_SYSCONFDIR |
| |
| path etc("/etc/ndn/client.conf"); |
| if (exists(etc)) |
| { |
| return absolute(etc); |
| } |
| |
| return path(); |
| } |
| |
| |
| |
| bool |
| ConfigFile::open() |
| { |
| if (m_path.empty()) |
| { |
| return false; |
| } |
| |
| m_input.open(m_path.c_str()); |
| if (!m_input.good() || !m_input.is_open()) |
| { |
| return false; |
| } |
| return true; |
| } |
| |
| void |
| ConfigFile::close() |
| { |
| if (m_input.is_open()) |
| { |
| m_input.close(); |
| } |
| } |
| |
| |
| const ConfigFile::Parsed& |
| ConfigFile::parse() |
| { |
| if (m_path.empty()) |
| { |
| throw Error("Failed to locate configuration file for parsing"); |
| } |
| else if (!m_input.is_open() && !open()) |
| { |
| throw Error("Failed to open configuration file for parsing"); |
| } |
| |
| try |
| { |
| boost::property_tree::read_ini(m_input, m_config); |
| } |
| catch (const boost::property_tree::ini_parser_error& error) |
| { |
| std::stringstream msg; |
| msg << "Failed to parse configuration file"; |
| msg << " " << m_path; |
| msg << " " << error.message() << " line " << error.line(); |
| throw Error(msg.str()); |
| } |
| return m_config; |
| } |
| |
| } |
| |