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/*
* Copyright (c) 2020, Peter Elliott <pelliott@serenityos.org>
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/ScopeGuard.h>
#include <LibCore/Account.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/GetPassword.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <string.h>
#include <unistd.h>
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
if (geteuid() != 0) {
warnln("Not running as root :^(");
return 1;
}
TRY(Core::System::setegid(0));
TRY(Core::System::pledge("stdio wpath rpath cpath fattr tty"));
TRY(Core::System::unveil("/etc", "rwc"));
TRY(Core::System::unveil(nullptr, nullptr));
bool del = false;
bool lock = false;
bool unlock = false;
// FIXME: Replace with StringView once Core::Account::from_name stops taking a char const*.
DeprecatedString username {};
auto args_parser = Core::ArgsParser();
args_parser.set_general_help("Modify an account password.");
args_parser.add_option(del, "Delete password", "delete", 'd');
args_parser.add_option(lock, "Lock password", "lock", 'l');
args_parser.add_option(unlock, "Unlock password", "unlock", 'u');
args_parser.add_positional_argument(username, "Username", "username", Core::ArgsParser::Required::No);
args_parser.parse(arguments);
uid_t current_uid = getuid();
// target_account is the account we are changing the password of.
auto target_account = TRY(!username.is_empty()
? Core::Account::from_name(username)
: Core::Account::from_uid(current_uid));
setpwent();
if (current_uid != 0 && current_uid != target_account.uid()) {
warnln("You can't modify passwd for {}", username);
return 1;
}
if (del) {
target_account.delete_password();
} else if (lock) {
target_account.set_password_enabled(false);
} else if (unlock) {
target_account.set_password_enabled(true);
} else {
if (current_uid != 0) {
auto current_password = TRY(Core::get_password("Current password: "sv));
if (!target_account.authenticate(current_password)) {
warnln("Incorrect or disabled password.");
warnln("Password for user {} unchanged.", target_account.username());
return 1;
}
}
auto new_password = TRY(Core::get_password("New password: "sv));
auto new_password_retype = TRY(Core::get_password("Retype new password: "sv));
if (new_password.is_empty() && new_password_retype.is_empty()) {
warnln("No password supplied.");
warnln("Password for user {} unchanged.", target_account.username());
return 1;
}
if (new_password.view() != new_password_retype.view()) {
warnln("Sorry, passwords don't match.");
warnln("Password for user {} unchanged.", target_account.username());
return 1;
}
target_account.set_password(new_password);
}
TRY(Core::System::pledge("stdio wpath rpath cpath fattr"));
TRY(target_account.sync());
outln("Password for user {} successfully updated.", target_account.username());
return 0;
}
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