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settings_window.cpp
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settings_window.cpp
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#include "pch.h"
#include <WinSafer.h>
#include <Sddl.h>
#include <sstream>
#include <accctrl.h>
#include <aclapi.h>
#include "powertoy_module.h"
#include <common/two_way_pipe_message_ipc.h>
#include "tray_icon.h"
#include "general_settings.h"
#include "common/windows_colors.h"
#include <common/json.h>
#define BUFSIZE 1024
TwoWayPipeMessageIPC* current_settings_ipc = NULL;
json::JsonObject get_power_toys_settings() {
json::JsonObject result;
for (const auto&[name, powertoy] : modules()) {
try {
result.SetNamedValue(name, powertoy.json_config());
}
catch (...) {
// TODO: handle malformed JSON.
}
}
return result;
}
json::JsonObject get_all_settings() {
json::JsonObject result;
result.SetNamedValue(L"general", get_general_settings());
result.SetNamedValue(L"powertoys", get_power_toys_settings());
return result;
}
void dispatch_json_action_to_module(const json::JsonObject& powertoys_configs) {
for (const auto& powertoy_element : powertoys_configs) {
const std::wstring name{powertoy_element.Key().c_str()};
if (modules().find(name) != modules().end()) {
const auto element = powertoy_element.Value().Stringify();
modules().at(name).call_custom_action(element.c_str());
}
}
}
void send_json_config_to_module(const std::wstring& module_key, const std::wstring& settings) {
if (modules().find(module_key) != modules().end()) {
modules().at(module_key).set_config(settings.c_str());
}
}
void dispatch_json_config_to_modules(const json::JsonObject& powertoys_configs) {
for (const auto& powertoy_element : powertoys_configs) {
const auto element = powertoy_element.Value().Stringify();
send_json_config_to_module(powertoy_element.Key().c_str(), element.c_str());
}
};
void dispatch_received_json(const std::wstring &json_to_parse) {
const json::JsonObject j = json::JsonObject::Parse(json_to_parse);
for(const auto & base_element : j) {
const auto name = base_element.Key();
const auto value = base_element.Value();
if (name == L"general") {
apply_general_settings(value.GetObjectW());
if (current_settings_ipc != nullptr) {
const std::wstring settings_string{get_all_settings().Stringify().c_str()};
current_settings_ipc->send(settings_string);
}
} else if (name == L"powertoys") {
dispatch_json_config_to_modules(value.GetObjectW());
if (current_settings_ipc != nullptr) {
const std::wstring settings_string{get_all_settings().Stringify().c_str()};
current_settings_ipc->send(settings_string);
}
} else if (name == L"refresh") {
if (current_settings_ipc != nullptr) {
const std::wstring settings_string{get_all_settings().Stringify().c_str()};
current_settings_ipc->send(settings_string);
}
} else if (name == L"action") {
dispatch_json_action_to_module(value.GetObjectW());
}
}
return;
}
void dispatch_received_json_callback(PVOID data) {
std::wstring* msg = (std::wstring*)data;
dispatch_received_json(*msg);
delete msg;
}
void receive_json_send_to_main_thread(const std::wstring &msg) {
std::wstring* copy = new std::wstring(msg);
dispatch_run_on_main_ui_thread(dispatch_received_json_callback, copy);
}
DWORD g_settings_process_id = 0;
void run_settings_window() {
STARTUPINFO startup_info = { sizeof(startup_info) };
PROCESS_INFORMATION process_info = { 0 };
HANDLE process = NULL;
HANDLE hToken = NULL;
STARTUPINFOEX siex = { 0 };
PPROC_THREAD_ATTRIBUTE_LIST pptal = NULL;
WCHAR executable_path[MAX_PATH];
GetModuleFileName(NULL, executable_path, MAX_PATH);
PathRemoveFileSpec(executable_path);
wcscat_s(executable_path, L"\\PowerToysSettings.exe");
WCHAR executable_args[MAX_PATH * 3];
const std::wstring settings_theme_setting{get_general_settings().GetNamedString(L"theme").c_str()};
std::wstring settings_theme;
if (settings_theme_setting == L"dark" || (settings_theme_setting == L"system" && WindowsColors::is_dark_mode())) {
settings_theme = L" dark"; // Include arg separating space
}
// Generate unique names for the pipes, if getting a UUID is possible
std::wstring powertoys_pipe_name(L"\\\\.\\pipe\\powertoys_runner_");
std::wstring settings_pipe_name(L"\\\\.\\pipe\\powertoys_settings_");
SIZE_T size = 0;
UUID temp_uuid;
UuidCreate(&temp_uuid);
wchar_t* uuid_chars;
UuidToString(&temp_uuid, (RPC_WSTR*)&uuid_chars);
if (uuid_chars != NULL) {
powertoys_pipe_name += std::wstring(uuid_chars);
settings_pipe_name += std::wstring(uuid_chars);
RpcStringFree((RPC_WSTR*)&uuid_chars);
uuid_chars = NULL;
}
DWORD powertoys_pid = GetCurrentProcessId();
// Arguments for calling the settings executable:
// C:\powertoys_path\PowerToysSettings.exe powertoys_pipe settings_pipe powertoys_pid
// powertoys_pipe - PowerToys pipe server.
// settings_pipe - Settings pipe server.
// powertoys_pid - PowerToys process pid.
// settings_theme - pass "dark" to start the settings window in dark mode
wcscpy_s(executable_args, L"\"");
wcscat_s(executable_args, executable_path);
wcscat_s(executable_args, L"\"");
wcscat_s(executable_args, L" ");
wcscat_s(executable_args, powertoys_pipe_name.c_str());
wcscat_s(executable_args, L" ");
wcscat_s(executable_args, settings_pipe_name.c_str());
wcscat_s(executable_args, L" ");
wcscat_s(executable_args, std::to_wstring(powertoys_pid).c_str());
wcscat_s(executable_args, settings_theme.c_str());
// Run the Settings process with non-elevated privileges
HWND hwnd = GetShellWindow();
if (!hwnd) {
goto LExit;
}
DWORD pid;
GetWindowThreadProcessId(hwnd, &pid);
process = OpenProcess(PROCESS_CREATE_PROCESS, FALSE, pid);
if (!process) {
goto LExit;
}
InitializeProcThreadAttributeList(nullptr, 1, 0, &size);
pptal = (PPROC_THREAD_ATTRIBUTE_LIST)new char[size];
if (!pptal) {
goto LExit;
}
if (!InitializeProcThreadAttributeList(pptal, 1, 0, &size)) {
goto LExit;
}
if (!UpdateProcThreadAttribute(pptal,
0,
PROC_THREAD_ATTRIBUTE_PARENT_PROCESS,
&process,
sizeof(process),
nullptr,
nullptr)) {
goto LExit;
}
siex.lpAttributeList = pptal;
siex.StartupInfo.cb = sizeof(siex);
if (!CreateProcessW(executable_path,
executable_args,
nullptr,
nullptr,
FALSE,
EXTENDED_STARTUPINFO_PRESENT,
nullptr,
nullptr,
&siex.StartupInfo,
&process_info)) {
goto LExit;
}
if (!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken)) {
goto LExit;
}
current_settings_ipc = new TwoWayPipeMessageIPC(powertoys_pipe_name, settings_pipe_name, receive_json_send_to_main_thread);
current_settings_ipc->start(hToken);
g_settings_process_id = process_info.dwProcessId;
WaitForSingleObject(process_info.hProcess, INFINITE);
if (WaitForSingleObject(process_info.hProcess, INFINITE) != WAIT_OBJECT_0) {
show_last_error_message(L"Couldn't wait on the Settings Window to close.", GetLastError());
}
LExit:
if (process_info.hProcess) {
CloseHandle(process_info.hProcess);
}
if (process_info.hThread) {
CloseHandle(process_info.hThread);
}
if (pptal) {
delete[](char*)pptal;
}
if (process) {
CloseHandle(process);
}
if (current_settings_ipc) {
current_settings_ipc->end();
delete current_settings_ipc;
current_settings_ipc = NULL;
}
if (hToken) {
CloseHandle(hToken);
}
g_settings_process_id = 0;
}
void bring_settings_to_front() {
auto callback = [](HWND hwnd, LPARAM data) -> BOOL
{
DWORD processId;
if (GetWindowThreadProcessId(hwnd, &processId) && processId == g_settings_process_id) {
ShowWindow(hwnd, SW_NORMAL);
SetForegroundWindow(hwnd);
return FALSE;
}
return TRUE;
};
EnumWindows(callback, 0);
}
void open_settings_window() {
if (g_settings_process_id != 0) {
bring_settings_to_front();
} else {
std::thread(run_settings_window).detach();
}
}