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// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// Copyright Citra Emulator Project / Azahar Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <boost/algorithm/string/classification.hpp>
#include <boost/algorithm/string/split.hpp>
#include <fmt/format.h>
#include "common/logging/log.h"
#include "common/scm_rev.h"
#include "update_checker.h"
#include <httplib.h>
#ifdef YUZU_BUNDLED_OPENSSL
#include <openssl/cert.h>
#endif
#include <nlohmann/json.hpp>
#include <optional>
#include <string>
std::optional<std::string> UpdateChecker::GetResponse(std::string url, std::string path)
{
try {
constexpr std::size_t timeout_seconds = 15;
std::unique_ptr<httplib::Client> client = std::make_unique<httplib::Client>(url);
client->set_connection_timeout(timeout_seconds);
client->set_read_timeout(timeout_seconds);
client->set_write_timeout(timeout_seconds);
#ifdef YUZU_BUNDLED_OPENSSL
client->load_ca_cert_store(kCert, sizeof(kCert));
#endif
if (client == nullptr) {
LOG_ERROR(Frontend, "Invalid URL {}{}", url, path);
return {};
}
httplib::Request request{
.method = "GET",
.path = path,
};
client->set_follow_location(true);
httplib::Result result = client->send(request);
if (!result) {
LOG_ERROR(Frontend, "GET to {}{} returned null", url, path);
return {};
}
const auto &response = result.value();
if (response.status >= 400) {
LOG_ERROR(Frontend,
"GET to {}{} returned error status code: {}",
url,
path,
response.status);
return {};
}
if (!response.headers.contains("content-type")) {
LOG_ERROR(Frontend, "GET to {}{} returned no content", url, path);
return {};
}
return response.body;
} catch (std::exception &e) {
LOG_ERROR(Frontend,
"GET to {}{} failed during update check: {}",
url,
path,
e.what());
return std::nullopt;
}
}
std::optional<UpdateChecker::Update> UpdateChecker::GetLatestRelease(bool include_prereleases) {
const auto update_check_url = std::string{Common::g_build_auto_update_api};
std::string update_check_path = fmt::format("/repos/{}",
std::string{Common::g_build_auto_update_repo});
try {
if (include_prereleases) { // This can return either a prerelease or a stable release,
// whichever is more recent.
const auto update_check_tags_path = update_check_path + "/tags";
const auto update_check_releases_path = update_check_path + "/releases";
const auto tags_response = UpdateChecker::GetResponse(update_check_url, update_check_tags_path);
const auto releases_response = UpdateChecker::GetResponse(update_check_url, update_check_releases_path);
if (!tags_response || !releases_response)
return {};
const std::string latest_tag
= nlohmann::json::parse(tags_response.value()).at(0).at("name");
const std::string latest_name =
nlohmann::json::parse(releases_response.value()).at(0).at("name");
const bool latest_tag_has_release = releases_response.value().find(
fmt::format("\"{}\"", latest_tag))
!= std::string::npos;
// If there is a newer tag, but that tag has no associated release, don't prompt the
// user to update.
if (!latest_tag_has_release)
return {};
return Update{latest_tag, latest_name};
} else { // This is a stable release, only check for other stable releases.
update_check_path += "/releases/latest";
const auto response = UpdateChecker::GetResponse(update_check_url, update_check_path);
if (!response)
return {};
const std::string latest_tag = nlohmann::json::parse(response.value()).at("tag_name");
const std::string latest_name = nlohmann::json::parse(response.value()).at("name");
return Update{latest_tag, latest_name};
}
} catch (nlohmann::detail::out_of_range &) {
LOG_ERROR(Frontend,
"Parsing JSON response from {}{} failed during update check: "
"nlohmann::detail::out_of_range",
update_check_url,
update_check_path);
return {};
} catch (nlohmann::detail::type_error &) {
LOG_ERROR(Frontend,
"Parsing JSON response from {}{} failed during update check: "
"nlohmann::detail::type_error",
update_check_url,
update_check_path);
return {};
}
}
std::optional<UpdateChecker::Update> UpdateChecker::GetUpdate() {
const bool is_prerelease = ((strstr(Common::g_build_version, "pre-alpha") != NULL) ||
(strstr(Common::g_build_version, "alpha") != NULL) ||
(strstr(Common::g_build_version, "beta") != NULL) ||
(strstr(Common::g_build_version, "rc") != NULL));
const std::optional<UpdateChecker::Update> latest_release_tag =
UpdateChecker::GetLatestRelease(is_prerelease);
if (!latest_release_tag)
goto empty;
{
std::string tag, build;
if (Common::g_is_nightly_build) {
std::vector<std::string> result;
boost::split(result, latest_release_tag->tag, boost::is_any_of("."));
if (result.size() != 2)
goto empty;
tag = result[1];
boost::split(result, std::string{Common::g_build_version}, boost::is_any_of("-"));
if (result.empty())
goto empty;
build = result[0];
} else {
tag = latest_release_tag->tag;
build = Common::g_build_version;
}
if (tag != build)
return latest_release_tag.value();
}
empty:
return std::nullopt;
}
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