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Fixes a possible null dereference in DeviceManager::check_pushing() when the selected machine is missing or stale during timer refresh. (#13802)

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* Fix selected-machine null deref in device pushing check
This commit is contained in:
SoftFever
2026-05-22 23:52:00 +08:00
committed by GitHub
parent ffde56ccba
commit 6f6fc6ddfe
1 changed files with 31 additions and 9 deletions
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40
src/slic3r/GUI/DeviceCore/DevManager.cpp
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@@ -1,4 +1,7 @@
#include <nlohmann/json.hpp>
#include <exception>
#include "DevManager.h"
#include "DevUtil.h"
@@ -151,11 +154,15 @@ namespace Slic3r
{
keep_alive();
MachineObject* obj = this->get_selected_machine();
if (!obj) {
BOOST_LOG_TRIVIAL(warning) << "DeviceManager::check_pushing selected machine not found";
return;
}
std::chrono::system_clock::time_point start = std::chrono::system_clock::now();
auto internal = std::chrono::duration_cast<std::chrono::milliseconds>(start - obj->last_update_time);
if (obj && !obj->is_support_mqtt_alive)
if (!obj->is_support_mqtt_alive)
{
if (internal.count() > TIMEOUT_FOR_STRAT && internal.count() < 1000 * 60 * 60 * 300)
{
@@ -916,18 +923,33 @@ namespace Slic3r
const auto cloud_provider = Slic3r::GUI::wxGetApp().get_printer_cloud_provider();
if (Slic3r::GUI::wxGetApp().is_user_login(cloud_provider))
{
m_manager->check_pushing();
try
{
agent->refresh_connection(cloud_provider);
try {
m_manager->check_pushing();
} catch (const std::exception& e) {
BOOST_LOG_TRIVIAL(error) << "DeviceManagerRefresher::on_timer check_pushing exception="
<< e.what();
} catch (...) {
BOOST_LOG_TRIVIAL(error) << "DeviceManagerRefresher::on_timer check_pushing unknown exception";
}
catch (...)
{
;
try {
agent->refresh_connection(cloud_provider);
} catch (const std::exception& e) {
BOOST_LOG_TRIVIAL(error) << "DeviceManagerRefresher::on_timer refresh_connection exception="
<< e.what();
} catch (...) {
BOOST_LOG_TRIVIAL(error) << "DeviceManagerRefresher::on_timer refresh_connection unknown exception";
}
}
// certificate
agent->install_device_cert(obj->get_dev_id(), obj->is_lan_mode_printer());
try {
agent->install_device_cert(obj->get_dev_id(), obj->is_lan_mode_printer());
} catch (const std::exception& e) {
BOOST_LOG_TRIVIAL(error) << "DeviceManagerRefresher::on_timer install_device_cert exception="
<< e.what();
} catch (...) {
BOOST_LOG_TRIVIAL(error) << "DeviceManagerRefresher::on_timer install_device_cert unknown exception";
}
}
}