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控制器基类

时间：2021-07-01 10:21:17 帮助过：15人阅读

非常简单实用的控制器基类
  1. /**
  2. * @desc 控制器基类
  3. * @date 2013-05-06
  4. * @author liudesheng
  5. */
  6. defined('SYS_PATH') || die('访问非法');
  7. class controller
  8. {
  9. //当前控制器
  10. protected $_controller;
  11. //当前动作方法
  12. protected $_action;
  13. //权限数组
  14. protected $_permissions;
  15. //模板文件
  16. private $_layout = 'layout';
  18. //构造函数
  19. function __construct($controller,$action)
  20. {
  21. if('exception' != $controller){
  22. $this->_controller = $controller;
  23. $this->_action = $action;
  25. //登录检查和访问权限控制部分,登录页不需要验证
  26. $trust_action = util::c('trust_action');
  27. if(!isset($trust_action[$this->_controller]) || !in_array($this->_action,$trust_action[$this->_controller])){
  28. $this->login();
  29. //$this->privilege();
  30. }
  31. $this->init();
  32. }else{//异常处理
  33. $this->exception($action);
  34. }
  35. }
  37. //初始化方法，用于继承操作
  38. protected function init(){}
  40. //异常处理方法
  41. private function exception($msg)
  42. {
  43. $this->showErr($msg,$layout);
  44. }
  46. //验证登录
  47. private function login()
  48. {
  49. if(!$this->isLogin()){
  50. if($this->isAjax()){
  51. header('HTTP/1.1 403 Forbidden');
  52. header("Error-Json:{code:'login'}");
  53. exit();
  54. }else{
  55. $this->redirect('index','login');
  56. }
  57. }
  58. }
  60. //判断是否登录
  61. protected final function isLogin()
  62. {
  63. $auth = isset($_COOKIE['auth'])?$_COOKIE['auth']:'';
  64. $isLogin = false;
  65. if($auth){
  66. $info = trim(file_get_contents('check.txt'));
  67. if(strcmp($auth,md5('steve'.$info.util::c('login_auth_suffix'))) == 0){
  68. $isLogin = true;
  69. }
  70. }
  71. return $isLogin;
  72. }
  74. //验证权限
  75. private function privilege()
  76. {
  77. $this->getPermissions();
  78. if(!$this->isAllow()){
  79. if($this->isAjax()){
  80. header('HTTP/1.1 403 Forbidden');
  81. header( "Error-Json:{code:'access'}");
  82. exit();
  83. }else{
  84. $this->showErr('对不起,您没有此权限');
  85. }
  86. }
  87. }
  89. //获取权限信息
  90. protected final function getPermissions()
  91. {
  92. $privilege = $this->admin['privilege'];
  93. $permissions_priv = util::c('permissions',$privilege);
  94. if(!isset($permissions_priv['city'])){
  95. $this->cityPriv = 'all'; //为了简化列表查询,方便以后可能添加所有城市权限选择
  96. }else{
  97. unset($permissions_priv['city']);
  98. }
  99. foreach($permissions['common'] as $ct => $ac){
  100. if(isset($permissions_priv[$ct]) && 'all' == $permissions_priv[$ct])
  101. continue;
  102. if('all' == $ac)
  103. $permissions_priv[$ct] = 'all';
  104. else //这种情况必须是数组，节省资源，不做判断了
  105. $permissions_priv[$ct] = isset($permissions_priv[$ct])?array_merge($permissions_priv[$ct],$ac):$ac;
  106. }
  107. $this->_permissions = $permissions_priv;
  108. }
  110. //根据权限类型判断是否有权限
  111. protected final function isAllow($controller='',$action='')
  112. {
  113. if(!isset($this->_permissions))
  114. $this->getPermissions();
  115. $allow = false;
  116. $ct = $controller?$controller:$this->_controller;
  117. $ac = $action?$action:$this->_action;
  118. $permission_action = $this->_permissions[$ct];
  119. if($permission_action && ('all' == $permission_action || in_array($ac,$permission_action) || 'any' == $action))
  120. $allow = true;
  121. return $allow;
  122. }
  125. //错误信息页面
  126. protected function showErr($errMsg,$layout = null)
  127. {
  128. $this->title = "错误提示";
  129. $this->errMsg = $errMsg;
  130. $this->render('error',$layout);
  131. }
  133. //成功信息页面
  134. protected function showSucc($msg,$skipUrl,$skipPage,$layout = null)
  135. {
  136. $this->title = "成功提示";
  137. $this->msg = $msg;
  138. $this->skipUrl = $skipUrl;
  139. $this->skipPage = $skipPage;
  140. $this->render('success',$layout);
  141. }
  143. //显示有权限的链接
  144. protected function showPemissionLink($title,$ct,$ac,$param=array(),$wrap='')
  145. {
  146. if($wrap){
  147. $wrap_start = '<'.$wrap.'>';
  148. $wrap_end = '';
  149. }else{
  150. $wrap_start = $wrap_end = '';
  151. }
  152. if($this->isAllow($ct,$ac))
  153. echo $wrap_start,'url($ct,$ac,$param),'" >',$title,'',$wrap_end;
  154. }
  156. //视图解析方法
  157. protected function render($template = null,$layout = null)
  158. {
  159. !is_null($layout) && $this->_layout = $layout;
  160. !$template && $template = $this->_controller.'_'.$this->_action;
  161. ob_start();
  162. include(MODULE_PATH.'views/'.$this->_layout.'.tpl.php');
  163. $content = ob_get_clean();
  164. if($this->staticFile){
  165. file_put_contents($this->staticFile,$content);
  166. }
  167. echo $content;
  168. exit;
  169. }
  171. protected function showHtml($html,$expire=3600,$path='')
  172. {
  173. empty($path) && $path=ROOT_PATH;
  174. $this->staticFile = sprintf('%s%s.html',$path,$html);
  175. $mkhtml = intval($this->_G('mkhtml'));
  176. if(!$mkhtml){
  177. if(file_exists($this->staticFile)){
  178. $fmtime = filemtime($this->staticFile);
  179. if(time()-$fmtime < $expire && date('Ymd') == date('Ymd',$fmtime)){
  180. include $this->staticFile;
  181. exit;
  182. }
  183. }
  184. }
  185. }
  187. //生成url
  188. protected function url($ct='',$ac='',$param = array(),$module='')
  189. {
  190. return $GLOBALS['app']->url($ct,$ac,$param,$module);
  191. }
  193. //url跳转
  194. protected function redirect($ct='',$ac='',$param = array())
  195. {
  196. header('location:'.$this->url($ct,$ac,$param));
  197. exit();
  198. }
  200. //url跳转
  201. protected function redirectUrl($url)
  202. {
  203. header('location:'.$url);
  204. exit();
  205. }
  207. //获取back redirect url
  208. protected function getBru()
  209. {
  210. return $_COOKIE[util::c('bru_cookie_name')]?$_COOKIE[util::c('bru_cookie_name')]:$this->url();
  211. }
  213. //是否是ajax请求
  214. protected function isAjax()
  215. {
  216. if(isset( $_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest')
  217. return true;
  218. return false;
  219. }
  221. //返回json数组
  222. protected function returnJson($data)
  223. {
  224. echo json_encode($data);
  225. exit();
  226. }
  228. //GET
  229. protected function _G($name)
  230. {
  231. return isset($_GET[$name])?util::sanitize($_GET[$name]):'';
  232. }
  233. //POST
  234. protected function _P($name)
  235. {
  236. if(!isset($_POST[$name]) || (is_string($_POST[$name]) && mb_strpos($_POST[$name],'请输入',0,'gbk') === 0)){
  237. return '';
  238. }else{
  239. return util::sanitize($_POST[$name]);
  240. }
  241. }
  242. //REQUEST
  243. protected function _R($name)
  244. {
  245. return isset($_REQUEST[$name])?util::sanitize($_REQUEST[$name]):'';
  246. }
  247. }

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