一个干页面静态化的php类

一个做页面静态化的php类

<?phpnamespace Common;/* * * 功能：页面静态化的创建和删除 *      创建：当且仅当，一个页面需要被静态化并且还未静态化时。 *      删除：当且仅当，一个页面存在静态化页面并且需要被重新静态化时。 * * 作者：郭军周 * * 注 ：本类基于ThinkPHP3.2，或者其他具有“单一入口且MVC模式”的其他php框架。 * * 使用方式：在Controller的构造方法中获取其对象；在Controller的销毁方法里，用其对象的_static方法。 *      例：XXXController extends BaseController. *         BaseController: *         function __construct(){ *             $this->__sh = StaticHtml::getInstance(); *         } *         function __destruct(){ *             $this->__sh->_static(); *         } * * */class StaticHtml{    private static $_instance = null;   /* 单例模式，自身的引用 */    private $_needStatic = false;   /* 是否需要将其静态化 */    private $_needDeleteStatic = false;     /* 是否需要删除其静态化的页面 */    private $_hasStaticed = true;   /* 是否存在其的静态化页面 */    private $_controller = null;    /* 当前被访问的controller */    private $_action = null;        /* 当前被访问的action *///    private $_staticAgain = false;   /* 删除静态文件后，是否马上重新更新【【注意】再次请求】 */    private $_save_path = null;     /* 将要创建或者删除的静态文件的路径 */    private $_conf = array( /* 此文件定义一些静态文件的存放方式 */        'files_per_directory' => 100        /* 此值不允许被修改，除非是要删除所有已经存在的静态文件，重新缓存 */    );    private $_staticList = array(   /* 此数组，定义了需要创建静态化页面的Controller的action *///        'Base' => array(      /* Base为controller name *///            'aaa' => array(       /* aaa为action name *///                'save_path' => '/StaticHtml/Base/aaa/',   /* save_path为生成的静态文件存放的根路径 *///                'static_base' => 'id',        /* static_base为生成静态文件的“依据”。建议为对应数据库的primary_key *///                'alias' => 'aaa'  /* 静态文件的名字，否则为1.html *///            )//        )        'Mynotes' => array(            'look_notes' => array(                'save_path' => '/StaticHtml/Mynotes/look_notes/',                'static_base' => 'id',                'alias' => 'note'            ),            'add_personal_notes' => array(                'save_path' => '/StaticHtml/Mynotes/',                'alias' => 'note-add'            )        ),        'Resource' => array(            'allResource' => array(                'save_path' => '/StaticHtml/Resource/',                'alias' => 'allResource'            ),            'resource_add' => array(                'save_path' => '/StaticHtml/Resource/',                'alias' => 'resourceAdd'            )        ),        'Thing' => array(            'suggestion_of_lecture' => array(                'save_path' => '/StaticHtml/Lecture/',                'alias' => 'voteLecture'            )        ),        'Passwordfix' => array(            'index' => array(                'save_path' => '/StaticHtml/Information/',                'alias' => 'updatePassword'            )        ),        'Information' => array(            'index' => array(                'save_path' => '/StaticHtml/Information/',                'static_base' => 'user_id',                'alias' => 'information'            )        ),        'Courseinfo' => array(            'course_show' => array(                'save_path' => '/StaticHtml/Information/',                'static_base' => 'user_id',                'alias' => 'course'            )        )    );    private $_deleteList = array(   /* 此数组，定义了需要删除某些静态化页面的Controller的action *///        'Base' => array(      /* Base为controller name *///            'bbb' => array(       /* bbb为action name *///                'save_path' => '/StaticHtml/Base/aaa/',   /* save_path为要删除的静态文件存放的根路径 *///                'static_base' => 'id',        /* static_base为确定静态文件路径的“依据”。建议为对应数据库的primary_key *///                'alias' => 'aaa'  /* 静态文件的名字，否则为1.html *///            )//        )        'Mynotes' => array(            'edits_notes' => array(                'save_path' => '/StaticHtml/Mynotes/look_notes/',                'static_base' => 'id',                'alias' => 'note'            )        ),        'Information' => array(            'save_user_info' => array(                'save_path' => '/StaticHtml/Information/',                'static_base' => 'user_id',                'alias' => 'information'            )        ),        'Courseinfo' => array(            'course_update' => array(                'save_path' => '/StaticHtml/Information/',                'static_base' => 'user_id',                'alias' => 'course'            )        )    );    private function __construct(){        $this->needStatic(); /* 确定本次请求是否需要静态化 */        $this->hasStaticed(); /* 确定本次请求是否已经存在静态化页面 */        $this->needDeleteStatic(); /* 确定本次请求是否需要删除某些静态页面 */    }    /* 确定需要删除的静态文件的存放路径 */    private function needDeleteStatic(){        if($this->_needDeleteStatic){            $save_path = $this->getSavePath($this->_deleteList[$this->_controller][$this->_action]);            $this->_hasStaticed = false;            if(file_exists(ROOT_PATH.$save_path)){                $this->_hasStaticed = true;            }//            $this->_staticAgain = $this->_deleteList[$this->_controller][$this->_action]['visitAgain'];            $this->_save_path = ROOT_PATH.$save_path;        }    }    /* 获取本类的，唯一的，实例化 */    public static function getInstance(){        if(!(self::$_instance instanceof self)){            self::$_instance = new self();        }        return self::$_instance;    }    /* 判断是否存在其静态化的文件 */    private function hasStaticed(){        if($this->_needStatic){            $save_path = $this->getSavePath($this->_staticList[$this->_controller][$this->_action]);            if(!file_exists(ROOT_PATH.$save_path)){                $this->_hasStaticed = false;                ob_start();            }else{                header("location: http://".$_SERVER['HTTP_HOST'].dirname($_SERVER['SCRIPT_NAME']).$save_path);            }            $this->_save_path = ROOT_PATH.$save_path;        }    }    /* 获取本次请求要生成或者删除的，静态化文件的路径 */    private function getSavePath($conf){        if(!isset($conf['static_base'])){            $save_path = $conf['save_path'];            $save_path .= $conf['alias'].'.html';        }else{            if($conf['static_base'] == 'user_id'){                $id = (int)$_SESSION['logined_user']['id'];            }else{                if(IS_GET){                    $id = $_GET[$conf['static_base']];                }else{                    $id =  $_POST[$conf['static_base']];                }            }            $save_path = $conf['save_path'];            $directory_id = ceil($id/$this->_conf['files_per_directory']);            $save_path .= $directory_id.'/';            if($conf['alias']){                $fileName = $conf['alias'].'-';            }            $fileName .= $id.'.html';            $save_path .= $fileName;        }        return $save_path;    }    /* 确定本次请求，是否需要生成静态化文件 */    private function needStatic(){        $url = explode('/',__ACTION__);        $this->_controller = $url[4];        $this->_action = $url[5];        if(isset($this->_staticList[$this->_controller]) && isset($this->_staticList[$this->_controller][$this->_action])){            $this->_needStatic = true;        }        if(isset($this->_deleteList[$this->_controller]) && isset($this->_deleteList[$this->_controller][$this->_action])){            $this->_needDeleteStatic = true;        }    }    /* 生成，或者删除，静态化文件 */    public function _static(){        if($this->_needStatic && !$this->_hasStaticed){            $html = ob_get_contents();            $this->_mkdir(dirname($this->_save_path));            file_put_contents($this->_save_path,$html);        }        if($this->_needDeleteStatic && $this->_hasStaticed){            unlink($this->_save_path);            /*if($this->_staticAgain){                header("location: http://www.baidu.com");//                header("location: http://".$_SERVER['HTTP_HOST'].'/'.$_SERVER['REQUEST_URI']);            }*/        }    }    /* 创建目录 */    private function _mkdir($path){        if (!file_exists($path)){            $this->_mkdir(dirname($path));            mkdir($path, 0777);        }    }}?>