zhphp framework (八) 路由引擎

<?php
/**
* Created by JetBrains PhpStorm.
* User: 张华
* Date: 14-3-8
* Time: 下午12:21
* QQ: 746502560@qq.com
* To change this template use File | Settings | File Templates.
*/
defined('IN_ZHPHP')?NULL:die('attempts to hack the system');
final class router{
private $module; #模块
private $controller;#控制器
private $action;#动作
private $params=array();#参数
/**
* 构造函数
*/
public function __construct(){
$this->parseUrl();#分析路由并url安全验证
$this->filterControl();#控制器安全验证
$this->parseStatic();#处理伪静态
}
/**
* 解析路由并url安全验证
*/
private function parseUrl(){
$parse=parse_url(APP_URI);#伪静态自动过滤
#初始化处理
if($parse['path'] == '/' || $parse['path'] == '/index.php' || $parse['path'] == PROJECT_NAME.'/' || $parse['path'] === PROJECT_NAME.'/index.php' ){ #为空处理

if(!isset($parse['query'])){
$this->_empty();#为空的时候不需要安全验证
return;
}
}
#get路由处理 与pathinfo路由处理
if(isset($parse['query'])){#get
#关键词过滤
if(filterKword() == false){#url非法过滤,如果存在非法字符就设置默认页面
$this->_empty();
$this->params['error']='error_1';#url包含非法字符错误
}
$httpRequest=$_GET;
$keys= array_keys($httpRequest);
if($keys[0] === 'm'){#表示访问modules/controller/action
$this->module=$httpRequest[$keys[0]];
$this->controller=$httpRequest[$keys[1]];
$this->action=$httpRequest[$keys[2]];
array_shift($httpRequest);array_shift($httpRequest);array_shift($httpRequest);
$this->params=$this->actionparams($httpRequest);
}elseif($keys[0] === 'c'){#表示访问controller/action
$this->controller=$httpRequest[$keys[0]];
$this->action=$httpRequest[$keys[1]];
array_shift($httpRequest);array_shift($httpRequest);
$this->params=$this->actionparams($httpRequest);
}else{
//否则就是混合模型
//http://127.0.0.1/zhphp/Ajax/index/?aa=ddd
// $this->params=$_GET;
$this->pathInfoUri($parse['path']);//执行混合模型
}
unset($isfilterUrl,$httpRequest,$keys);
}else{#pathInfo格式
if(strpos($parse['path'], 'index.php')){#有index.php的情况下
$httpRequest=$this->parseDelimiter($parse);#通过url分隔符
if(empty($httpRequest[0]) || $httpRequest[0]=='index.php'){
array_shift($httpRequest);
}
if(count($httpRequest) == 1 ){
$this->_empty();
return;
}
}else{#无index.php的情况下
$httpRequest=$this->parseDelimiter($parse);
if(empty($httpRequest[0])){
array_shift($httpRequest);
}
if(count($httpRequest) == 1 ){
$this->_empty();
return;
}
}
$modules=config::readConfig('modules');
/**
* 模块安全检查
*/
if( !empty($httpRequest[0])){
$boolean=in_array($httpRequest[0],$modules);
}else{
$boolean=false;
}
if($boolean){ #表示访问modules/controller/action
$this->module=$httpRequest[0];
$this->controller= empty($httpRequest[1])?'IndexController':$httpRequest[1];
$this->action=empty($httpRequest[2])?'indexAction':$httpRequest[2];
array_shift($httpRequest);array_shift($httpRequest);array_shift($httpRequest);
$this->params=$this->actionparams($httpRequest);
}else{#表示访问controller/action
if(!empty($httpRequest[0]) && !empty($httpRequest[1])){
$this->controller=$httpRequest[0];
$this->action=$httpRequest[1];
array_shift($httpRequest);array_shift($httpRequest);
$this->params=$this->actionparams($httpRequest);
}
}
unset($modules,$boolean,$httpRequest,$parse);
}
}
/**
* 安全验证controller
* 支持redis
*/
private function filterControl(){
$controllers=config::readConfig('controller');#获取已经注册的控制器
$develop=config::readConfig('develop');#获取开发模式
$checkControll=isset($develop['checkControll'])?$develop['checkControll']:false;#是否需要严格验证控制器
if($checkControll){
if(is_array($controllers)){
if(in_array($this->controller, $controllers) == false){#判断是否注册控制器,返回false就是没有注册
$this->_empty();#重新赋值
$this->params['error']='error_2';#控制器未注册,非法访问文件错误
}else{
$key=array_search($this->controller, $controllers);#返回键
if(is_string($key)){;#重新解析控制器,通过值获取key判断是否是数字或者是关联
$this->controller=$key;
}
}
}
}else{
if(is_array($controllers)){
if(in_array($this->controller, $controllers)){#判断是注册控制器
$key=array_search($this->controller, $controllers);#返回键
if(is_string($key)){;#重新解析控制器,通过值获取key判断是否是数字或者是关联
$this->controller=$key;
}
}
}
}
unset($controllers,$develop,$checkControll);
}
/**
*处理伪静态
*/
private function parseStatic(){
#分析完后获取到 action 或者参数 然后在处理伪静态
$Static_suffix=config::readConfig('parse','Static_suffix');#得到伪静态
$end=count($this->params) > 0?end($this->params):null;#判断是否有参数
$length2=strlen($Static_suffix);#得到伪静态长度
if(is_null($end)){#如果参数,
$pos=strpos($this->action, $Static_suffix);
if($pos !== false){
$length=strlen($this->action);
$this->action=substr($this->action, 0,$length-$length2);
}
unset($pos);
}else{#有参数
$pos=strpos($end, $Static_suffix);#判断最后一个元素中是否存在伪静态
if($pos !== false){ #如果不等于 false 就说明有
array_pop($this->params);#如果存在就删除最后一个
$end=str_ireplace($Static_suffix, '', $end);#替换去掉 .html 伪静态
array_push($this->params, $end);#将新数据重新添加到最后一个元素中
}
unset($pos);
}
unset($Static_suffix,$end,$length2);
}

/**
* uri初始化或者为空的情况
*/
private  function _empty(){
$parse=config::readConfig('parse');
$this->module=$parse['m'];
$this->controller=$parse['c'];
$this->action=$parse['a'];
unset($parse);
}
/**
* 解析路由分割符号
* @param type $parse
* @return type
*/
private function parseDelimiter($parse){
$parseconfig=config::readConfig('parse');
$delimiter=isset($parseconfig['url_Delimiter'])?$parseconfig['url_Delimiter']:'/';
$parse['path']=  str_ireplace(PROJECT_NAME, '', $parse['path']);
$httpRequest=explode($delimiter, $parse['path']);
if($delimiter != '/'){
$httpRequest[0]=  str_ireplace('/', '', $httpRequest[0]);
}else{
array_shift($httpRequest);
}
unset($parseconfig,$delimiter,$parse);
return  $httpRequest;
}

/**
* 解决混合模式
*/
private  function  pathInfoUri($uri){
if(strpos($uri, 'index.php')){#有index.php的情况下
$parseconfig=config::readConfig('parse');
$delimiter=isset($parseconfig['url_Delimiter'])?$parseconfig['url_Delimiter']:'/';
$uri=  str_ireplace(PROJECT_NAME, '', $uri);
$httpRequest=explode($delimiter,$uri);
if($delimiter != '/'){
$httpRequest[0]=  str_ireplace('/', null, $httpRequest[0]);
}else{
array_shift($httpRequest);
}
if(empty($httpRequest[0]) || $httpRequest[0]=='index.php'){
array_shift($httpRequest);
}
if(count($httpRequest) == 1 ){
$this->_empty();
return;
}
}else{#无index.php的情况下
$parseconfig=config::readConfig('parse');
$delimiter=isset($parseconfig['url_Delimiter'])?$parseconfig['url_Delimiter']:'/';
$uri=  str_ireplace(PROJECT_NAME, '', $uri);
$httpRequest=explode($delimiter,$uri);
if($delimiter != '/'){
$httpRequest[0]=  str_ireplace('/',null, $httpRequest[0]);
}else{
array_shift($httpRequest);
}
if(empty($httpRequest[0])){
array_shift($httpRequest);
}
if(count($httpRequest) == 1 ){
$this->_empty();
return;
}
}
$modules=config::readConfig('modules');
/**
* 模块安全检查
*/
if( !empty($httpRequest[0])){
$boolean=in_array($httpRequest[0],$modules);
}else{
$boolean=false;
}
if($boolean){ #表示访问modules/controller/action
$this->module=$httpRequest[0];
$this->controller= empty($httpRequest[1])?'IndexController':$httpRequest[1];
$this->action=empty($httpRequest[2])?'indexAction':$httpRequest[2];
array_shift($httpRequest);array_shift($httpRequest);array_shift($httpRequest);
#混合模式的get 已经获取到了
$this->params=$this->actionparams($httpRequest);
}else{#表示访问controller/action
if(!empty($httpRequest[0]) && !empty($httpRequest[1])){
$this->controller=$httpRequest[0];
$this->action=$httpRequest[1];
array_shift($httpRequest);array_shift($httpRequest);
$this->params=$this->actionparams($httpRequest);
#混合模式的get 已经获取到了
}
}
unset($modules,$boolean,$httpRequest,$parse);
}
/**
*
* @param undefined $httpRequest
* 非常严格的安全检查
* @return
*/
private function actionparams($httpRequest){
$get_key='';$get_val='';
if( ! empty($_SERVER['QUERY_STRING'])){
$arr=explode('&',$_SERVER['QUERY_STRING']);
foreach($arr as $key=>$value){
$arr2=explode('=',$value);
$this->params[$arr2[0]]=$arr2[1];
}
}else{
foreach($httpRequest as $key=>$value){
if($key % 2 == 0){
$get_key=filterKword(addslashes_deep($value));
}else{
$get_val=filterKword(addslashes_deep($value));
}
$this->params[$get_key]=$get_val;
}
}
$_GET=$this->params;
unset($get_key,$get_val,$httpRequest);
return  $this->params;
}

/**
*
* @return type
*/
public function getModule(){
return empty($this->module)?'':$this->module;
}
/**
*
* @return type
*/
public function getControl(){
return empty($this->controller)?'Index':ucfirst($this->controller);
}
/**
*
* @return type
*/
public function getAction(){
return empty($this->action)?'index':$this->action;
}
/**
*
* @return type
*/
public function getParams(){
return $this->params;
}
}