控制器基类

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 = '';
148. $wrap_end = ''.$wrap.'>';
149. }else{
150. $wrap_start = $wrap_end = '';
151. }
152. if($this->isAllow($ct,$ac))
153. echo $wrap_start,'',$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 include $this->staticFile;
180. exit;
181. }
182. }
183. }
184. }
186. //生成url
187. protected function url($ct='',$ac='',$param = array(),$module='')
188. {
189. return $GLOBALS['app']->url($ct,$ac,$param,$module);
190. }
192. //url跳转
193. protected function redirect($ct='',$ac='',$param = array())
194. {
195. header('location:'.$this->url($ct,$ac,$param));
196. exit();
197. }
199. //url跳转
200. protected function redirectUrl($url)
201. {
202. header('location:'.$url);
203. exit();
204. }
206. //获取back redirect url
207. protected function getBru()
208. {
209. return $_COOKIE[util::c('bru_cookie_name')]?$_COOKIE[util::c('bru_cookie_name')]:$this->url();
210. }
212. //是否是ajax请求
213. protected function isAjax()
214. {
215. if(isset( $_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest')
216. return true;
217. return false;
218. }
220. //返回json数组
221. protected function returnJson($data)
222. {
223. echo json_encode($data);
224. exit();
225. }
227. //GET
228. protected function _G($name)
229. {
230. return isset($_GET[$name])?util::sanitize($_GET[$name]):'';
231. }
232. //POST
233. protected function _P($name)
234. {
235. if(!isset($_POST[$name]) || (is_string($_POST[$name]) && mb_strpos($_POST[$name],'请输入',0,'gbk') === 0)){
236. return '';
237. }else{
238. return util::sanitize($_POST[$name]);
239. }
240. }
241. //REQUEST
242. protected function _R($name)
243. {
244. return isset($_REQUEST[$name])?util::sanitize($_REQUEST[$name]):'';
245. }
246. }

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