控制器基类 -php教程-PHP中文网

控制器基类

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发布： 2016-07-25 08:47:57

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非常简单实用的控制器基类

/**
* @desc 控制器基类
* @date 2013-05-06
* @author liudesheng
*/
defined('SYS_PATH') || die('访问非法');
class controller
{
//当前控制器
protected $_controller;
//当前动作方法
protected $_action;
//权限数组
protected $_permissions;
//模板文件
private $_layout = 'layout';
//构造函数
function __construct($controller,$action)
{
if('exception' != $controller){
$this->_controller = $controller;
$this->_action = $action;
//登录检查和访问权限控制部分,登录页不需要验证
$trust_action = util::c('trust_action');
if(!isset($trust_action[$this->_controller]) || !in_array($this->_action,$trust_action[$this->_controller])){
$this->login();
//$this->privilege();
}
$this->init();
}else{//异常处理
$this->exception($action);
}
}
//初始化方法，用于继承操作
protected function init(){}
//异常处理方法
private function exception($msg)
{
$this->showErr($msg,$layout);
}
//验证登录
private function login()
{
if(!$this->isLogin()){
if($this->isAjax()){
header('HTTP/1.1 403 Forbidden');
header("Error-Json:{code:'login'}");
exit();
}else{
$this->redirect('index','login');
}
}
}
//判断是否登录
protected final function isLogin()
{
$auth = isset($_COOKIE['auth'])?$_COOKIE['auth']:'';
$isLogin = false;
if($auth){
$info = trim(file_get_contents('check.txt'));
if(strcmp($auth,md5('steve'.$info.util::c('login_auth_suffix'))) == 0){
$isLogin = true;
}
}
return $isLogin;
}
//验证权限
private function privilege()
{
$this->getPermissions();
if(!$this->isAllow()){
if($this->isAjax()){
header('HTTP/1.1 403 Forbidden');
header( "Error-Json:{code:'access'}");
exit();
}else{
$this->showErr('对不起,您没有此权限');
}
}
}
//获取权限信息
protected final function getPermissions()
{
$privilege = $this->admin['privilege'];
$permissions_priv = util::c('permissions',$privilege);
if(!isset($permissions_priv['city'])){
$this->cityPriv = 'all'; //为了简化列表查询,方便以后可能添加所有城市权限选择
}else{
unset($permissions_priv['city']);
}
foreach($permissions['common'] as $ct => $ac){
if(isset($permissions_priv[$ct]) && 'all' == $permissions_priv[$ct])
continue;
if('all' == $ac)
$permissions_priv[$ct] = 'all';
else //这种情况必须是数组，节省资源，不做判断了
$permissions_priv[$ct] = isset($permissions_priv[$ct])?array_merge($permissions_priv[$ct],$ac):$ac;
}
$this->_permissions = $permissions_priv;
}
//根据权限类型判断是否有权限
protected final function isAllow($controller='',$action='')
{
if(!isset($this->_permissions))
$this->getPermissions();
$allow = false;
$ct = $controller?$controller:$this->_controller;
$ac = $action?$action:$this->_action;
$permission_action = $this->_permissions[$ct];
if($permission_action && ('all' == $permission_action || in_array($ac,$permission_action) || 'any' == $action))
$allow = true;
return $allow;
}
//错误信息页面
protected function showErr($errMsg,$layout = null)
{
$this->title = "错误提示";
$this->errMsg = $errMsg;
$this->render('error',$layout);
}
//成功信息页面
protected function showSucc($msg,$skipUrl,$skipPage,$layout = null)
{
$this->title = "成功提示";
$this->msg = $msg;
$this->skipUrl = $skipUrl;
$this->skipPage = $skipPage;
$this->render('success',$layout);
}
//显示有权限的链接
protected function showPemissionLink($title,$ct,$ac,$param=array(),$wrap='')
{
if($wrap){
$wrap_start = '';
$wrap_end = ''.$wrap.'>';
}else{
$wrap_start = $wrap_end = '';
}
if($this->isAllow($ct,$ac))
echo $wrap_start,'',$title,'',$wrap_end;
}
//视图解析方法
protected function render($template = null,$layout = null)
{
!is_null($layout) && $this->_layout = $layout;
!$template && $template = $this->_controller.'_'.$this->_action;
ob_start();
include(MODULE_PATH.'views/'.$this->_layout.'.tpl.php');
$content = ob_get_clean();
if($this->staticFile){
file_put_contents($this->staticFile,$content);
}
echo $content;
exit;
}
protected function showHtml($html,$expire=3600,$path='')
{
empty($path) && $path=ROOT_PATH;
$this->staticFile = sprintf('%s%s.html',$path,$html);
$mkhtml = intval($this->_G('mkhtml'));
if(!$mkhtml){
if(file_exists($this->staticFile)){
$fmtime = filemtime($this->staticFile);
if(time()-$fmtime include $this->staticFile;
exit;
}
}
}
}
//生成url
protected function url($ct='',$ac='',$param = array(),$module='')
{
return $GLOBALS['app']->url($ct,$ac,$param,$module);
}
//url跳转
protected function redirect($ct='',$ac='',$param = array())
{
header('location:'.$this->url($ct,$ac,$param));
exit();
}
//url跳转
protected function redirectUrl($url)
{
header('location:'.$url);
exit();
}
//获取back redirect url
protected function getBru()
{
return $_COOKIE[util::c('bru_cookie_name')]?$_COOKIE[util::c('bru_cookie_name')]:$this->url();
}
//是否是ajax请求
protected function isAjax()
{
if(isset( $_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest')
return true;
return false;
}
//返回json数组
protected function returnJson($data)
{
echo json_encode($data);
exit();
}
//GET
protected function _G($name)
{
return isset($_GET[$name])?util::sanitize($_GET[$name]):'';
}
//POST
protected function _P($name)
{
if(!isset($_POST[$name]) || (is_string($_POST[$name]) && mb_strpos($_POST[$name],'请输入',0,'gbk') === 0)){
return '';
}else{
return util::sanitize($_POST[$name]);
}
}
//REQUEST
protected function _R($name)
{
return isset($_REQUEST[$name])?util::sanitize($_REQUEST[$name]):'';
}
}

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