Exphp代码走读(三)

  1 <?php
  2 namespace System\Core
  3 
  4 
  5 class Controller {
  6     public $Cache;
  7     public $Session;
  8     public $View;
  9 
 10     private $_requestName;
 11     private $_requestMethod;
 12 
 13     public function __construct(){
 14         $this->safescan();
 15 
 16         Global $App;
 17 
 18         $this->Cache = $App->Cache;
 19         $this->Session = $App->Session;
 20 
 21         $this->View = new View($this->Session->getSessionData());
 22 
 23         $userRole = global_item(‘app_user_role‘);
 24 
 25         if(empty($userRole)){
 26             return;
 27         }
 28 
 29         $className = get_class($this);
 30 
 31         if(in_array($className,global_item(‘app_controller_guest‘))){
 32             return;
 33         }
 34 
 35         $isUserRole = ‘is‘ . $userRole;
 36 
 37         if(!$this->Session->$isUserRole()){
 38             if($this->Session->isLogin()){
 39                 $this->showError(‘你没有访问权限！‘);
 40             }else{
 41                 $this->showMessage(‘你还没有登录，请先登录!‘,‘/account/login‘);
 42             }
 43 
 44         }
 45     }
 46 
 47     public function setControllerParams($requestName,$requestMethod){
 48         $this->_requestName = $requestName;
 49         $this->_requestMethod = $requestMethod;
 50 
 51         $this->View->setRequestName($requestName);
 52         $this->View->setRequestMethod($requestMethod);
 53 
 54         $this->View->setViewName($requestName . ‘_‘ . $requestMethod);
 55     }
 56 
 57 
 58     public function getRequestName(){
 59         return $this->_requestName;
 60     }
 61 
 62     public function getRequestMethod(){
 63         return $this->_requestMethod;
 64     }
 65 
 66     public function getPageNumber(){
 67         $page = numf(isset($_GET[‘page‘]) ? $_GET[‘page‘] : (isset($_GET[‘p‘])?$_GET[‘p‘] : 0 ));
 68 
 69         return ($page < 1) ? 1 : $page;
 70     }
 71 
 72     public function getPageSize($defaultValue = 25){
 73         return config_item(‘cfg_default_pagesize‘,$defaultValue);
 74     }
 75 
 76     public function getPageStart($page = 1, $pageSize = 25){
 77         return ($page - 1 ) * $pageSize;
 78     }
 79 
 80     public function getPageExtract($pageSize = 0){
 81         $page == $this->getPageNumber();
 82         $pageSize = empty($pageSize) ? $this->getPageSize : $pageSize;
 83         $pageStart = $this->getPageStart($page,$pageSize);
 84 
 85         return array(‘page‘=>$page,‘pageSize‘=>$pageSize,‘pageStart‘=>$pageStart);
 86     }
 87 
 88     public function getPageSearchWords($string,$delimiter = ‘|‘){
 89         $string = preg_replace(‘/[^\w\@\-\.]+/u‘,‘ ‘,$string);
 90         $string = trim($string);
 91         $string = preg_replace(‘/\s+/u‘,$delimiter,$string);
 92         return $string;
 93     }
 94 
 95 
 96     public function isAjaxRequest(){
 97         return global_item(‘isAjaxRequest‘);
 98     }
 99 
100     public function isRequestApp($requestApp){
101         return $requestApp == global_item(‘requestApp‘);
102     }
103 
104     public function isRequestWebApp(){
105         return $this->isRequestApp(‘Web‘);
106     }
107 
108 
109     public function isPostSubmitRequest($isverifyRequestHash = TRUE,$isReturn = false){
110         if($_SERVER[‘REQUEST_METHOD‘]==‘POST‘ && ($_POST[‘submit‘] || $_POST[‘postSubmit‘])){
111             if($isVerifyRequestHash){
112                 $now = $this->Session->getTimestamp();
113                 $requestHash = isset($_POST[‘requestHash‘]) ? $_POST[‘requestHash‘] : $_POST[‘formHash‘];
114                 if(empty($requestHash)){
115                     $requestTime = 0;
116                 }else{
117                     $requestTime = $this->Session->getRequestHash($requestHash);
118                 }
119 
120                 if(($now - $requestTime) > 86400){
121                     if($isReturn){
122                         return false;
123                     }else{
124                         $this->showError(‘服务器错误，请求不合法‘);
125                     }
126                 } else {
127                     return true;
128                 }
129             }
130             return true;
131         } else {
132             return false;
133         }
134     }
135 }
136 
137 public function isValidRequest($requestHash = ‘‘, $isReturn = FALSE){
138     $now = $this->Session->getTimestamp();
139     if(empty($requestHash)){
140         $requestTime = 0;
141     }else{
142         $requestTime = $this->Session->getRequestHash($requestHash);
143     }
144 
145     if(($now - $requestTime) > 86400){
146         if($isReturn){
147             return false;
148         }else{
149             $this->showError(‘服务器错误，请求不合法!‘);
150         }
151     } else {
152         return true;
153     }
154 } 
155 
156 
157 public function checkLoginState($forward = ‘‘,$isReturn = false,$tplName=‘account_login‘){
158     if($this->Session->isLogin()){
159         return true;
160     }else{
161         if($isReturn){
162             return false;
163         }else{
164             if($this->isAjaxRequest()){
165                 $responseScript = ‘$("body").exRequest({requestUrl:"/account/login?requestForward=‘ . urlencode ($forward) . ‘")‘;
166                 $this->View->setAjaxResponseScript($responseScript);
167                 $this->showMessage(‘请先登录‘);
168             } else {
169                 $this->showMessage(‘你还没有登录‘,‘/account/login?format=‘.urlencode($forward),1);
170             }
171             exit;
172         }
173     }
174 }
175 
176 
177 public function tryAjaxOutput($ajaxData = null){
178     if($this->isAjaxRequest()){
179         $this->View->ajaxOutput($ajaxData);
180     }
181 }
182 
183 public show404($message = ‘出错啦!你访问的页面不存在!‘,$messageCode = 400){
184     $this->showMessage($message,‘/‘,9,‘show_message‘,404);
185 }
186 
187 
188 //$message，提示信息
189 //$forwardUrl,跳转的URL
190 //$forwardSecond,页面的等待时间
191 //$messageTemplate,使用的模板
192 //$messageCode,HTTP状态码，3位
193 public showMessage($message,$forwardUrl = ‘‘,$forwardSecond = 2,$messageTemplate = ‘show_message‘,$messageCode = 200){
194 
195     $forwardUrl = trim($forwardUrl);
196     if(!empty($forwardUrl) && strtolower(substr($forwardUrl,0,11)) == ‘javascript:‘){
197         $forwardUrl = ‘‘;
198     }
199 
200 
201     if(!empty($forwardUrl) && empty($forwardSecond)){
202 
203         header(‘Location: ‘.$forwardUrl,true,$messageCode);
204 
205     } else{
206         $title = ‘提示：‘;
207         if(strpos($message,‘|‘)!==false){
208             list($title,$message) = explode(‘|‘,$message,2);
209         }
210         $pageTitle = $title;
211 
212         if($messageCode == 404){
213             $httpServerProtocol = getsrv(‘SERVER_PROTOCOL‘);
214             if(empty($httpServerProtocol)){
215                 $httpServerProtocol = ‘HTTP/1.1‘;
216             }
217 
218             header($httpServerProtocol . ‘ 404 Not Found‘,true,404);
219             header(‘Status: 404 Not Found‘,true,404);
220 
221             $title = ‘404‘;
222             $pageTitle = ‘出错啦‘;
223             if(empty($message) || (defined(‘DBUG‘) && !DBUG)){
224                 $message = ‘出错啦，你访问的页面不存在‘;
225             }
226         }
227 
228         $forwardMessage = $message;
229         $forwardLink = ‘‘;
230         $forwardScript = ‘‘;
231 
232         if(!empty($forwardUrl)){
233             $forwardUrlTitle = ‘新‘;
234             if(strpos($forwardUrl,‘|‘)!==false && strpos($forwardUrl,‘|‘) < strpos($forwardUrl,‘/‘)){
235                 list($forwardUrlTitle,$forwardUrl) = explode(‘|‘,$forwardUrl,2);
236             }
237             $forwardLink = ‘<a href="‘ . $forwardUrl . ‘">稍后转入‘ . $forwardUrlTitle . ‘页面..</a>‘;
238             $forwardScript = $forwardSecond > 0 ? ‘<script>setTimeout("window.location.href=\‘‘. $forwardUrl . ‘\‘;",‘.($forwardSecond).‘);</script>‘ : ‘‘;
239         }
240 
241         $this->View->setTitle($title);
242         $this->View->setPageTitle($pageTiTle);
243 
244         $this->View->addData(‘isShowMessage‘,$messageCode == 200);
245 
246         $this->View->addData(‘message‘,$message);
247         $this->View->addData(‘messageCode‘,$messageCode);
248         $this->View->addData(‘forwardMessage‘,$forwardMessage);
249 
250         $this->tryAjaxOutput();
251 
252         $this->View->display($messageTemplate);
253     }
254     exit(1);
255 }