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https://github.com/RGBCube/serenity
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c62804df46
The user should use the delete flag when wanting to issue an empty password. passwd should return an error after receiving empty input.
140 lines
4 KiB
C++
140 lines
4 KiB
C++
/*
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* Copyright (c) 2020, Peter Elliott <pelliott@ualberta.ca>
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* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Types.h>
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#include <LibCore/Account.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/File.h>
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#include <LibCore/GetPassword.h>
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#include <string.h>
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#include <unistd.h>
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int main(int argc, char** argv)
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{
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if (geteuid() != 0) {
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warnln("Not running as root :^(");
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return 1;
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}
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if (setegid(0) < 0) {
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perror("setegid");
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return 1;
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}
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if (pledge("stdio wpath rpath cpath fattr tty", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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if (unveil("/etc", "rwc") < 0) {
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perror("unveil");
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return 1;
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}
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unveil(nullptr, nullptr);
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bool del = false;
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bool lock = false;
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bool unlock = false;
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const char* username = nullptr;
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auto args_parser = Core::ArgsParser();
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args_parser.set_general_help("Modify an account password.");
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args_parser.add_option(del, "Delete password", "delete", 'd');
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args_parser.add_option(lock, "Lock password", "lock", 'l');
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args_parser.add_option(unlock, "Unlock password", "unlock", 'u');
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args_parser.add_positional_argument(username, "Username", "username", Core::ArgsParser::Required::No);
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args_parser.parse(argc, argv);
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uid_t current_uid = getuid();
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auto account_or_error = (username)
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? Core::Account::from_name(username)
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: Core::Account::from_uid(current_uid);
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if (account_or_error.is_error()) {
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warnln("Core::Account::{}: {}", (username) ? "from_name" : "from_uid", account_or_error.error());
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return 1;
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}
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setpwent();
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if (pledge("stdio wpath rpath cpath fattr tty", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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// target_account is the account we are changing the password of.
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auto& target_account = account_or_error.value();
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if (current_uid != 0 && current_uid != target_account.uid()) {
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warnln("You can't modify passwd for {}", username);
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return 1;
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}
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if (del) {
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target_account.delete_password();
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} else if (lock) {
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target_account.set_password_enabled(false);
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} else if (unlock) {
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target_account.set_password_enabled(true);
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} else {
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if (current_uid != 0) {
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auto current_password = Core::get_password("Current password: ");
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if (current_password.is_error()) {
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warnln("{}", current_password.error());
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return 1;
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}
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if (!target_account.authenticate(current_password.value().characters())) {
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warnln("Incorrect or disabled password.");
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warnln("Password for user {} unchanged.", target_account.username());
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return 1;
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}
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}
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auto new_password = Core::get_password("New password: ");
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if (new_password.is_error()) {
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warnln("{}", new_password.error());
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return 1;
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}
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auto new_password_retype = Core::get_password("Retype new password: ");
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if (new_password_retype.is_error()) {
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warnln("{}", new_password_retype.error());
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return 1;
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}
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if (new_password.value().is_empty() && new_password_retype.value().is_empty()) {
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warnln("No password supplied.");
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warnln("Password for user {} unchanged.", target_account.username());
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return 1;
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}
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if (new_password.value() != new_password_retype.value()) {
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warnln("Sorry, passwords don't match.");
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warnln("Password for user {} unchanged.", target_account.username());
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return 1;
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}
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target_account.set_password(new_password.value().characters());
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}
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if (pledge("stdio wpath rpath cpath fattr", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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if (!target_account.sync()) {
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perror("Core::Account::Sync");
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} else {
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outln("Password for user {} successfully updated.", target_account.username());
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}
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return 0;
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}
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