function admin_login()
{
safe('admin_login');
global $smarty, $lang;
$username = substr(post('username'), 0, 30);
$password = substr(post('password'), 0, 30);
if ($username == '' || $password == '') {
unset_session('admin_username');
unset_session('admin_password');
$info_text = '对不起，用户名和密码不能为空';
$link_text = '返回重新登录';
} else {
$password = md5($password);
$obj = new admin();
$obj->set_field('adm_id,adm_last_login');
$obj->set_where("adm_username = '******'");
$obj->set_where("adm_password = '******'");
$one = $obj->get_one();
if (count($one) !== 0) {
set_session('session_id', session_id());
set_session('admin_username', $username);
set_session('admin_password', $password);
$adm_id = $one['adm_id'];
$adm_prev_login = $one['adm_last_login'];
$adm_last_login = time();
$obj->set_value('adm_prev_login', $adm_prev_login);
$obj->set_value('adm_last_login', $adm_last_login);
$obj->set_where('');
$obj->set_where("adm_id = {$adm_id}");
$obj->edit();
$info_text = '欢迎使用新秀文章管理系统后台';
$link_text = '进入后台';
} else {
unset_session('session_id');
unset_session('admin_username');
unset_session('admin_password');
$info_text = '对不起，用户名不存在或密码不正确';
$link_text = '返回重新登录';
}
}
$smarty->assign('info_text', $info_text);
$smarty->assign('link_text', $link_text);
$smarty->assign('link_href', $_SERVER['PHP_SELF']);
}
function edit_admin()
{
global $global, $smarty;
$adm_id = post('adm_id');
$adm_password = post('adm_password');
$re_password = post('re_password');
$obj = new admin();
$obj->set_where('adm_id = ' . $global['admin_id']);
$a = $obj->get_one();
$obj->set_where('');
$obj->set_where("adm_id = {$adm_id}");
$b = $obj->get_one();
$success = 0;
if ($obj->get_count()) {
if ($a['adm_id'] == $b['adm_id'] || $a['adm_grade'] < $b['adm_grade']) {
if (strlen($adm_password) >= 5 && $adm_password == $re_password) {
$obj->set_value('adm_password', md5($adm_password));
$obj->edit();
$success = 1;
}
}
}
if ($success) {
$info_text = '修改密码成功';
$link_text = '返回列表页';
$link_href = url(array('channel' => 'basic', 'mod' => 'admin_list'));
} else {
$info_text = '修改密码失败';
$link_text = '返回上一页';
$link_href = url(array('channel' => 'basic', 'mod' => 'admin_edit'));
}
$smarty->assign('info_text', $info_text);
$smarty->assign('link_text', $link_text);
$smarty->assign('link_href', $link_href);
}