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#include "Executor.hpp"
#include "../../../event/EventBus.hpp"
#include "../../../Compositor.hpp"
#include "../../../managers/input/InputManager.hpp"
#include "../../../desktop/rule/windowRule/WindowRule.hpp"
#include "../../../desktop/rule/Engine.hpp"
#include "../../../desktop/state/FocusState.hpp"
#include "../../../managers/TokenManager.hpp"
#include "../../../helpers/Monitor.hpp"
#include <hyprutils/string/String.hpp>
#include <chrono>
using namespace Config::Supplementary;
using namespace Hyprutils::String;
UP<CExecutor>& Config::Supplementary::executor() {
static UP<CExecutor> p = makeUnique<CExecutor>();
return p;
}
CExecutor::CExecutor() {
m_listeners.init = Event::bus()->m_events.start.listen([this] {
if (m_firstExecDispatched)
return;
// update dbus env
if (g_pCompositor->m_aqBackend->hasSession())
spawnRaw(
#ifdef USES_SYSTEMD
"systemctl --user import-environment DISPLAY WAYLAND_DISPLAY HYPRLAND_INSTANCE_SIGNATURE XDG_CURRENT_DESKTOP QT_QPA_PLATFORMTHEME PATH XDG_DATA_DIRS && hash "
"dbus-update-activation-environment 2>/dev/null && "
#endif
"dbus-update-activation-environment --systemd WAYLAND_DISPLAY XDG_CURRENT_DESKTOP HYPRLAND_INSTANCE_SIGNATURE QT_QPA_PLATFORMTHEME PATH XDG_DATA_DIRS");
m_firstExecDispatched = true;
for (auto const& c : m_execOnce) {
auto res = c.withRules ? spawn(c.exec) : spawnRaw(c.exec);
if (!res || !c.rule)
continue;
const auto TOKEN = g_pTokenManager->registerNewToken(nullptr, std::chrono::seconds(1));
applyRuleToProc(c.rule, *res, TOKEN);
}
m_execOnce.clear(); // free some kb of memory :P
// set input, fixes some certain issues
g_pInputManager->setKeyboardLayout();
g_pInputManager->setPointerConfigs();
g_pInputManager->setTouchDeviceConfigs();
g_pInputManager->setTabletConfigs();
// check for user's possible errors with their setup and notify them if needed
// this is additionally guarded because exiting safe mode will re-run this.
g_pCompositor->performUserChecks();
m_listeners.shutdown = Event::bus()->m_events.exit.listen([this] {
for (auto const& c : m_execShutdown) {
c.withRules ? spawn(c.exec) : spawnRaw(c.exec);
}
m_execShutdown.clear();
});
});
}
void CExecutor::applyRuleToProc(SP<Desktop::Rule::CWindowRule> rule, int64_t pid, const std::string& token) {
rule->markAsExecRule(token, pid, false /* TODO: could be nice. */);
rule->registerMatch(Desktop::Rule::RULE_PROP_EXEC_TOKEN, token);
rule->registerMatch(Desktop::Rule::RULE_PROP_EXEC_PID, std::to_string(pid));
Desktop::Rule::ruleEngine()->registerRule(std::move(rule));
Log::logger->log(Log::DEBUG, "Applied rule arguments for exec, pid {}.", pid);
}
void CExecutor::addExecOnce(SExecRequest&& cmd) {
m_execOnce.emplace_back(std::move(cmd));
}
void CExecutor::addExecShutdown(SExecRequest&& cmd) {
m_execShutdown.emplace_back(std::move(cmd));
}
std::optional<uint64_t> CExecutor::spawn(const std::string& args) {
return spawnWithRules(args);
}
std::optional<uint64_t> CExecutor::spawn(const SExecRequest& args) {
auto res = spawn(args.exec);
if (!args.rule)
return res;
const auto TOKEN = g_pTokenManager->registerNewToken(nullptr, std::chrono::seconds(1));
applyRuleToProc(args.rule, *res, TOKEN);
return res;
}
std::optional<uint64_t> CExecutor::spawnRaw(const std::string& args) {
return spawnRawProc(args);
}
std::optional<uint64_t> CExecutor::spawnWithRules(std::string args, PHLWORKSPACE pInitialWorkspace) {
args = trim(args);
std::string RULES = "";
if (args[0] == '[') {
// we have exec rules
const auto end = args.find_first_of(']');
if (end == std::string::npos)
return std::nullopt;
RULES = args.substr(1, end - 1);
args = args.substr(end + 1);
}
std::string execToken = "";
if (!RULES.empty()) {
auto rule = Desktop::Rule::CWindowRule::buildFromExecString(std::move(RULES));
if (!rule) {
Log::logger->log(Log::ERR, "Failed to parse exec rule: {}", rule.error());
return std::nullopt;
}
const auto TOKEN = g_pTokenManager->registerNewToken(nullptr, std::chrono::seconds(1));
const auto PROC = spawnRawProc(args, pInitialWorkspace, TOKEN);
if (!PROC)
return std::nullopt;
applyRuleToProc(*rule, *PROC, TOKEN);
return PROC;
}
return spawnRawProc(args, pInitialWorkspace, execToken);
}
static std::vector<std::pair<std::string, std::string>> getHyprlandLaunchEnv(PHLWORKSPACE pInitialWorkspace) {
static auto PINITIALWSTRACKING = CConfigValue<Config::INTEGER>("misc:initial_workspace_tracking");
if (!*PINITIALWSTRACKING)
return {};
const auto PMONITOR = Desktop::focusState()->monitor();
if (!PMONITOR || !PMONITOR->m_activeWorkspace)
return {};
std::vector<std::pair<std::string, std::string>> result;
if (!pInitialWorkspace) {
if (PMONITOR->m_activeSpecialWorkspace)
pInitialWorkspace = PMONITOR->m_activeSpecialWorkspace;
else
pInitialWorkspace = PMONITOR->m_activeWorkspace;
}
result.push_back(std::make_pair<>("HL_INITIAL_WORKSPACE_TOKEN",
g_pTokenManager->registerNewToken(Desktop::View::SInitialWorkspaceToken{{}, pInitialWorkspace->getConfigName()}, std::chrono::months(1337))));
return result;
}
std::optional<uint64_t> CExecutor::spawnRawProc(const std::string& args, PHLWORKSPACE pInitialWorkspace, const std::string& execRuleToken) {
Log::logger->log(Log::DEBUG, "[executor] Executing {}", args);
const auto HLENV = getHyprlandLaunchEnv(pInitialWorkspace);
pid_t child = fork();
if (child < 0) {
Log::logger->log(Log::DEBUG, "Fail to fork");
return 0;
}
if (child == 0) {
// run in child
g_pCompositor->restoreNofile();
sigset_t set;
sigemptyset(&set);
sigprocmask(SIG_SETMASK, &set, nullptr);
for (auto const& e : HLENV) {
setenv(e.first.c_str(), e.second.c_str(), 1);
}
setenv("WAYLAND_DISPLAY", g_pCompositor->m_wlDisplaySocket.c_str(), 1);
if (!execRuleToken.empty())
setenv(Desktop::Rule::EXEC_RULE_ENV_NAME, execRuleToken.c_str(), true);
int devnull = open("/dev/null", O_WRONLY | O_CLOEXEC);
if (devnull != -1) {
dup2(devnull, STDOUT_FILENO);
dup2(devnull, STDERR_FILENO);
close(devnull);
}
execl("/bin/sh", "/bin/sh", "-c", args.c_str(), nullptr);
// exit child
_exit(0);
}
// run in parent
Log::logger->log(Log::DEBUG, "[executor] Process created with pid {}", child);
return child;
}
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