[李景山php]thinkphp核心源码注释-App.class.php

2020-03-22 18:31:03
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<?php// +----------------------------------------------------------------------// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]// +----------------------------------------------------------------------// | Copyright (c) 2006-2014 http://thinkVeVb.com All rights reserved.// +----------------------------------------------------------------------// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )// +----------------------------------------------------------------------// | Author: liu21st <liu21st@gmail.com>// +----------------------------------------------------------------------namespace Think;/** * ThinkPHP html' target='_blank'>应用程序类 执行应用过程管理 * 开启 */class App {    /**     * 应用程序初始化     * @access public     * @return void     */    static public function init() {        // 加载动态应用公共文件和配置        load_ext_file(COMMON_PATH); // 加载了 对应的文件        // 日志目录转换为绝对路径 默认情况下存储到公共模块下面        C('LOG_PATH',   realpath(LOG_PATH).'/Common/');// 修改 日志路径        // 定义当前请求的系统常量        define('NOW_TIME',      $_SERVER['REQUEST_TIME']); // 定义 开始        define('REQUEST_METHOD',$_SERVER['REQUEST_METHOD']);// 定为请求 方式        define('IS_GET',        REQUEST_METHOD =='GET' ? true : false);// 系统常量的定义        define('IS_POST',       REQUEST_METHOD =='POST' ? true : false);// 系统常量的定义        define('IS_PUT',        REQUEST_METHOD =='PUT' ? true : false);// 系统常量的定义        define('IS_DELETE',     REQUEST_METHOD =='DELETE' ? true : false);// 系统常量的定义        // URL调度        Dispatcher::dispatch(); // 这里的 各种 调用        if(C('REQUEST_VARS_FILTER')){            // 全局安全过滤            array_walk_recursive($_GET,        'think_filter');            array_walk_recursive($_POST,   'think_filter');            array_walk_recursive($_REQUEST,    'think_filter');        } // 进行的 过来 了，这个其实 就是 加了 addsalsh        // URL调度结束标签        Hook::listen('url_dispatch');         // 监听调度函数        define('IS_AJAX',       ((isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') || !empty($_POST[C('VAR_AJAX_SUBMIT')]) || !empty($_GET[C('VAR_AJAX_SUBMIT')])) ? true : false);        // 上面的 那个 定位的好长。        // TMPL_EXCEPTION_FILE 改为绝对地址        C('TMPL_EXCEPTION_FILE',realpath(C('TMPL_EXCEPTION_FILE'))); // 都是修改 绝对位置。        return ;    } // 也是 初始化    // 总结： 就是 里面的 那些 初始化    /**     * 执行应用程序     * @access public     * @return void     */    static public function exec() {        if(!preg_match('/^[A-Za-z](//|/w)*$/',CONTROLLER_NAME)){ // 安全检测            $module  =  false;        }elseif(C('ACTION_BIND_CLASS')){            // 操作绑定到类：模块/Controller/控制器/操作            $layer  =   C('DEFAULT_C_LAYER');            if(is_dir(MODULE_PATH.$layer.'/'.CONTROLLER_NAME)){                $namespace  =   MODULE_NAME.'//'.$layer.'//'.CONTROLLER_NAME.'//';            }else{                // 空控制器                $namespace  =   MODULE_NAME.'//'.$layer.'//_empty//';                                }            $actionName     =   strtolower(ACTION_NAME);            if(class_exists($namespace.$actionName)){                $class   =  $namespace.$actionName;            }elseif(class_exists($namespace.'_empty')){                // 空操作                $class   =  $namespace.'_empty';            }else{                E(L('_ERROR_ACTION_').':'.ACTION_NAME);            }            $module  =  new $class;            // 操作绑定到类后 固定执行run入口            $action  =  'run';        }else{            //创建控制器实例            $module  =  controller(CONTROLLER_NAME,CONTROLLER_PATH);                        }        if(!$module) {            if('4e5e5d7364f443e28fbf0d3ae744a59a' == CONTROLLER_NAME) {                header("Content-type:image/png");                exit(base64_decode(App::logo()));            }            // 是否定义Empty控制器            $module = A('Empty');            if(!$module){                E(L('_CONTROLLER_NOT_EXIST_').':'.CONTROLLER_NAME);            }        }        // 获取当前操作名 支持动态路由        if(!isset($action)){            $action    =   ACTION_NAME.C('ACTION_SUFFIX');          }        // 上面 就是 处理  module action controller        try{ // 这里 开始 执行了            self::invokeAction($module,$action);        } catch (/ReflectionException $e) {             // 方法调用发生异常后 引导到__call方法处理            $method = new /ReflectionMethod($module,'__call');            $method->invokeArgs($module,array($action,''));        }        return ;    }// 这里的确是 代码的 执行了，哈哈哈哈，原来的是这样的    // 这里 是什么呢？    public static function invokeAction($module,$action){    if(!preg_match('/^[A-Za-z](/w)*$/',$action)){        // 非法操作        throw new /ReflectionException();    }    //执行当前操作    $method =   new /ReflectionMethod($module, $action);    if($method->isPublic() && !$method->isStatic()) {        $class  =   new /ReflectionClass($module);        // 前置操作        if($class->hasMethod('_before_'.$action)) {            $before =   $class->getMethod('_before_'.$action);            if($before->isPublic()) {                $before->invoke($module);            }        }        // URL参数绑定检测        if($method->getNumberOfParameters()>0 && C('URL_PARAMS_BIND')){            switch($_SERVER['REQUEST_METHOD']) {                case 'POST':                    $vars    =  array_merge($_GET,$_POST);                    break;                case 'PUT':                    parse_str(file_get_contents('php://input'), $vars);                    break;                default:                    $vars  =  $_GET;            }            $params =  $method->getParameters();            $paramsBindType     =   C('URL_PARAMS_BIND_TYPE');            foreach ($params as $param){                $name = $param->getName();                if( 1 == $paramsBindType && !empty($vars) ){                    $args[] =   array_shift($vars);                }elseif( 0 == $paramsBindType && isset($vars[$name])){                    $args[] =   $vars[$name];                }elseif($param->isDefaultValueAvailable()){                    $args[] =   $param->getDefaultValue();                }else{                    E(L('_PARAM_ERROR_').':'.$name);                }               }            // 开启绑定参数过滤机制            if(C('URL_PARAMS_SAFE')){                $filters     =   C('URL_PARAMS_FILTER')?:C('DEFAULT_FILTER');                if($filters) {                    $filters    =   explode(',',$filters);                    foreach($filters as $filter){                        $args   =   array_map_recursive($filter,$args); // 参数过滤                    }                }                                    }            array_walk_recursive($args,'think_filter');            // array_walk_recursive() 函数对数组中的每个元素应用用户自定义函数。在函数中，数组的键名和键值是参数。            $method->invokeArgs($module,$args);        }else{            $method->invoke($module);        }        // 后置操作        if($class->hasMethod('_after_'.$action)) {            $after =   $class->getMethod('_after_'.$action);            if($after->isPublic()) {                $after->invoke($module);            }        }    }else{        // 操作方法不是Public 抛出异常        throw new /ReflectionException();    }    } // 解析 并且 过滤    /**     * 运行应用实例 入口文件使用的快捷方法     * @access public     * @return void     */    static public function run() {        // 应用初始化标签        Hook::listen('app_init');        App::init();        // 应用开始标签        Hook::listen('app_begin');        // Session初始化        if(!IS_CLI){            session(C('SESSION_OPTIONS'));        }        // 记录应用初始化时间        G('initTime');        App::exec();        // 应用结束标签        Hook::listen('app_end');        return ;    }// 处理了各种监听， app:init(), exec();    static public function logo(){        return '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';    }// 字符串编码}