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// SPDX-License-Identifier: Apache-2.0
#include "vis-config.hpp"
#include <iostream>
#include <iomanip>
#include <sstream>
#include <boost/property_tree/ptree.hpp>
#include <boost/property_tree/ini_parser.hpp>
#include <boost/filesystem.hpp>
namespace property_tree = boost::property_tree;
namespace filesystem = boost::filesystem;
#define DEFAULT_CLIENT_KEY_FILE "/etc/kuksa-val/Client.key"
#define DEFAULT_CLIENT_CERT_FILE "/etc/kuksa-val/Client.pem"
#define DEFAULT_CA_CERT_FILE "/etc/kuksa-val/CA.pem"
VisConfig::VisConfig(const std::string &hostname,
const unsigned port,
const std::string &clientKey,
const std::string &clientCert,
const std::string &caCert,
const std::string &authToken,
bool verifyPeer) :
m_hostname(hostname),
m_port(port),
m_clientKey(clientKey),
m_clientCert(clientCert),
m_caCert(caCert),
m_authToken(authToken),
m_verifyPeer(verifyPeer),
m_verbose(0),
m_valid(true)
{
// Potentially could do some certificate validation here...
}
VisConfig::VisConfig(const std::string &appname) :
m_valid(false)
{
std::string config("/etc/xdg/AGL/");
config += appname;
config += ".conf";
char *home = getenv("XDG_CONFIG_HOME");
if (home) {
config = home;
config += "/AGL/";
config += appname;
config += ".conf";
}
std::cout << "Using configuration " << config << std::endl;
property_tree::ptree pt;
try {
property_tree::ini_parser::read_ini(config, pt);
}
catch (std::exception &ex) {
std::cerr << "Could not read " << config << std::endl;
return;
}
const property_tree::ptree &settings =
pt.get_child("vis-client", property_tree::ptree());
m_hostname = settings.get("server", "localhost");
std::stringstream ss;
ss << m_hostname;
ss >> std::quoted(m_hostname);
if (m_hostname.empty()) {
std::cerr << "Invalid server hostname" << std::endl;
return;
}
m_port = settings.get("port", 8090);
if (m_port == 0) {
std::cerr << "Invalid server port" << std::endl;
return;
}
// Default to disabling peer verification for now to be able
// to use the default upstream KUKSA.val certificates for
// testing. Wrangling server and CA certificate generation
// and management to be able to verify will require further
// investigation.
m_verifyPeer = settings.get("verify-server", false);
std::string keyFileName = settings.get("key", DEFAULT_CLIENT_KEY_FILE);
std::stringstream().swap(ss);
ss << keyFileName;
ss >> std::quoted(keyFileName);
ss.str("");
if (keyFileName.empty()) {
std::cerr << "Invalid client key filename" << std::endl;
return;
}
filesystem::load_string_file(keyFileName, m_clientKey);
if (m_clientKey.empty()) {
std::cerr << "Invalid client key file" << std::endl;
return;
}
std::string certFileName = settings.get("certificate", DEFAULT_CLIENT_CERT_FILE);
std::stringstream().swap(ss);
ss << certFileName;
ss >> std::quoted(certFileName);
if (certFileName.empty()) {
std::cerr << "Invalid client certificate filename" << std::endl;
return;
}
filesystem::load_string_file(certFileName, m_clientCert);
if (m_clientCert.empty()) {
std::cerr << "Invalid client certificate file" << std::endl;
return;
}
std::string caCertFileName = settings.get("ca-certificate", DEFAULT_CA_CERT_FILE);
std::stringstream().swap(ss);
ss << caCertFileName;
ss >> std::quoted(caCertFileName);
if (caCertFileName.empty()) {
std::cerr << "Invalid CA certificate filename" << std::endl;
return;
}
filesystem::load_string_file(caCertFileName, m_caCert);
if (m_caCert.empty()) {
std::cerr << "Invalid CA certificate file" << std::endl;
return;
}
std::string authTokenFileName = settings.get("authorization", "");
std::stringstream().swap(ss);
ss << authTokenFileName;
ss >> std::quoted(authTokenFileName);
if (authTokenFileName.empty()) {
std::cerr << "Invalid authorization token filename" << std::endl;
return;
}
filesystem::load_string_file(authTokenFileName, m_authToken);
if (m_authToken.empty()) {
std::cerr << "Invalid authorization token file" << std::endl;
return;
}
m_verbose = 0;
std::string verbose = settings.get("verbose", "");
std::stringstream().swap(ss);
ss << verbose;
ss >> std::quoted(verbose);
if (!verbose.empty()) {
if (verbose == "true" || verbose == "1")
m_verbose = 1;
if (verbose == "2")
m_verbose = 2;
}
m_valid = true;
}
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