74 lines
2.1 KiB
C++
74 lines
2.1 KiB
C++
#include "VersionChecker.h"
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#include <sstream>
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#include <cpp-utils/network/CurlHttpClient.h>
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#include <boost/property_tree/json_parser.hpp>
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#include <cpp-utils/logging/logging.h>
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#include <boost/foreach.hpp>
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using boost::optional;
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using boost::none;
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using std::string;
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using std::shared_ptr;
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using std::make_shared;
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using cpputils::HttpClient;
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using cpputils::CurlHttpClient;
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using boost::property_tree::ptree;
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using boost::property_tree::json_parser_error;
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using namespace cpputils::logging;
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namespace cryfs {
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VersionChecker::VersionChecker(shared_ptr<HttpClient> httpClient)
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: _versionInfo(_getVersionInfo(std::move(httpClient))) {
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}
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optional<string> VersionChecker::newestVersion() const {
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if (_versionInfo == none) {
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return none;
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}
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string version = _versionInfo->get("version_info.current", "");
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if (version == "") {
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return none;
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}
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return version;
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}
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optional<string> VersionChecker::securityWarningFor(const string &version) const {
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if (_versionInfo == none) {
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return none;
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}
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auto warnings = _versionInfo->get_child_optional("warnings");
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if (warnings == none) {
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return none;
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}
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BOOST_FOREACH(const ptree::value_type &v, *warnings) {
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if(v.first == version) {
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return v.second.get_value<std::string>();
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}
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}
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return none;
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}
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optional<ptree> VersionChecker::_getVersionInfo(shared_ptr<HttpClient> httpClient) {
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long timeoutMsec = 2000;
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optional<string> response = httpClient->get("https://www.cryfs.org/version_info.json", timeoutMsec);
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if (response == none) {
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return none;
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}
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return _parseJson(*response);
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}
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optional<ptree> VersionChecker::_parseJson(const string &json) {
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try {
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ptree pt;
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std::istringstream input(json);
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read_json(input, pt);
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return pt;
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} catch (const json_parser_error &e) {
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LOG(WARN) << "Error parsing version information json object";
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return none;
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}
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}
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}
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