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#include "Sys.hpp"
#include "Die.hpp"
#include "StringUtils.hpp"
#include <pwd.h>
#include <unistd.h>
#include <sstream>
#include <print>
#include <filesystem>
#include <algorithm>
#include <sstream>
#include <hyprutils/os/Process.hpp>
#include <hyprutils/string/VarList.hpp>
using namespace Hyprutils::OS;
using namespace Hyprutils::String;
inline constexpr std::array<std::string_view, 3> SUPERUSER_BINARIES = {
"sudo",
"doas",
"run0",
};
static std::string validSubinsAsStr() {
std::ostringstream oss;
auto it = SUPERUSER_BINARIES.begin();
if (it != SUPERUSER_BINARIES.end()) {
oss << *it++;
for (; it != SUPERUSER_BINARIES.end(); ++it)
oss << ", " << *it;
}
return oss.str();
}
static bool executableExistsInPath(const std::string& exe) {
return NSys::findInPath(exe).has_value();
}
std::optional<std::string> NSys::findInPath(const std::string& exe) {
const char* PATHENV = std::getenv("PATH");
if (!PATHENV)
return std::nullopt;
CVarList paths(PATHENV, 0, ':', true);
std::error_code ec;
for (const auto& PATH : paths) {
std::filesystem::path candidate = std::filesystem::path(PATH) / exe;
if (!std::filesystem::exists(candidate, ec) || ec)
continue;
if (!std::filesystem::is_regular_file(candidate, ec) || ec)
continue;
auto perms = std::filesystem::status(candidate, ec).permissions();
if (ec)
continue;
if ((perms & std::filesystem::perms::others_exec) != std::filesystem::perms::none)
return candidate.string();
}
return std::nullopt;
}
static std::string subin() {
static std::string bin;
static bool once = true;
if (!once)
return bin;
for (const auto& BIN : SUPERUSER_BINARIES) {
if (!executableExistsInPath(std::string{BIN}))
continue;
bin = BIN;
break;
}
once = false;
if (bin.empty())
Debug::die("{}", failureString("No valid superuser binary present. Supported: {}", validSubinsAsStr()));
return bin;
}
static bool verifyStringValid(const std::string& s) {
return std::ranges::none_of(s, [](const char& c) { return c == '`' || c == '$' || c == '(' || c == ')' || c == '\'' || c == '"'; });
}
int NSys::getUID() {
const auto UID = getuid();
const auto PWUID = getpwuid(UID);
return PWUID ? PWUID->pw_uid : UID;
}
int NSys::getEUID() {
const auto UID = geteuid();
const auto PWUID = getpwuid(UID);
return PWUID ? PWUID->pw_uid : UID;
}
bool NSys::isSuperuser() {
return getuid() != geteuid() || geteuid() == 0;
}
void NSys::root::cacheSudo() {
// "caches" the sudo so that the prompt later doesn't pop up in a weird spot
// sudo will not ask us again for a moment
CProcess proc(subin(), {"echo", "hyprland"});
proc.runSync();
}
void NSys::root::dropSudo() {
if (subin() != "sudo") {
std::println("{}", infoString("Don't know how to drop timestamp for '{}', ignoring.", subin()));
return;
}
CProcess proc(subin(), {"-k"});
proc.runSync();
}
bool NSys::root::createDirectory(const std::string& path, const std::string& mode) {
if (!verifyStringValid(path))
return false;
if (!std::ranges::all_of(mode, [](const char& c) { return c >= '0' && c <= '9'; }))
return false;
CProcess proc(subin(), {"mkdir", "-p", "-m", mode, path});
return proc.runSync() && proc.exitCode() == 0;
}
bool NSys::root::removeRecursive(const std::string& path) {
if (!verifyStringValid(path))
return false;
std::error_code ec;
const std::string PATH_ABSOLUTE = std::filesystem::canonical(path, ec);
if (ec)
return false;
if (!PATH_ABSOLUTE.starts_with("/var/cache/hyprpm"))
return false;
CProcess proc(subin(), {"rm", "-fr", PATH_ABSOLUTE});
return proc.runSync() && proc.exitCode() == 0;
}
bool NSys::root::install(const std::string& what, const std::string& where, const std::string& mode) {
if (!verifyStringValid(what) || !verifyStringValid(where))
return false;
if (!std::ranges::all_of(mode, [](const char& c) { return c >= '0' && c <= '9'; }))
return false;
CProcess proc(subin(), {"install", "-m" + mode, "-o", "0", "-g", "0", what, where});
return proc.runSync() && proc.exitCode() == 0;
}
std::string NSys::root::runAsSuperuserUnsafe(const std::string& cmd) {
CProcess proc(subin(), {"/bin/sh", "-c", cmd});
if (!proc.runSync())
return "";
return proc.stdOut();
}
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