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194 lines
8.2 KiB
PHP
194 lines
8.2 KiB
PHP
<?php
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// +----------------------------------------------------------------------
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// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2006-2012 http://thinkphp.cn All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
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// +----------------------------------------------------------------------
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// | Author: liu21st <liu21st@gmail.com>
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// +----------------------------------------------------------------------
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namespace Behavior;
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/**
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* 系统行为扩展：操作路由检测
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*/
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class CheckActionRouteBehavior {
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// 行为扩展的执行入口必须是run
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public function run(&$config){
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// 优先检测是否存在PATH_INFO
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$regx = trim($_SERVER['PATH_INFO'],'/');
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if(empty($regx)) return ;
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// 路由定义文件优先于config中的配置定义
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// 路由处理
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$routes = $config['routes'];
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if(!empty($routes)) {
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$depr = C('URL_PATHINFO_DEPR');
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// 分隔符替换 确保路由定义使用统一的分隔符
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$regx = str_replace($depr,'/',$regx);
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$regx = substr_replace($regx,'',0,strlen(__URL__));
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foreach ($routes as $rule=>$route){
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if(0===strpos($rule,'/') && preg_match($rule,$regx,$matches)) { // 正则路由
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return C('ACTION_NAME',$this->parseRegex($matches,$route,$regx));
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}else{ // 规则路由
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$len1 = substr_count($regx,'/');
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$len2 = substr_count($rule,'/');
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if($len1>=$len2) {
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if('$' == substr($rule,-1,1)) {// 完整匹配
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if($len1 != $len2) {
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continue;
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}else{
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$rule = substr($rule,0,-1);
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}
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}
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$match = $this->checkUrlMatch($regx,$rule);
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if($match) return C('ACTION_NAME',$this->parseRule($rule,$route,$regx));
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}
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}
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}
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}
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}
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// 检测URL和规则路由是否匹配
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private function checkUrlMatch($regx,$rule) {
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$m1 = explode('/',$regx);
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$m2 = explode('/',$rule);
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$match = true; // 是否匹配
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foreach ($m2 as $key=>$val){
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if(':' == substr($val,0,1)) {// 动态变量
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if(strpos($val,'\\')) {
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$type = substr($val,-1);
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if('d'==$type && !is_numeric($m1[$key])) {
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$match = false;
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break;
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}
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}elseif(strpos($val,'^')){
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$array = explode('|',substr(strstr($val,'^'),1));
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if(in_array($m1[$key],$array)) {
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$match = false;
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break;
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}
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}
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}elseif(0 !== strcasecmp($val,$m1[$key])){
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$match = false;
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break;
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}
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}
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return $match;
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}
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// 解析规范的路由地址
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// 地址格式 操作?参数1=值1&参数2=值2...
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private function parseUrl($url) {
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$var = array();
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if(false !== strpos($url,'?')) { // 操作?参数1=值1&参数2=值2...
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$info = parse_url($url);
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$path = $info['path'];
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parse_str($info['query'],$var);
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}else{ // 操作
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$path = $url;
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}
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$var[C('VAR_ACTION')] = $path;
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return $var;
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}
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// 解析规则路由
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// '路由规则'=>'操作?额外参数1=值1&额外参数2=值2...'
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// '路由规则'=>array('操作','额外参数1=值1&额外参数2=值2...')
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// '路由规则'=>'外部地址'
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// '路由规则'=>array('外部地址','重定向代码')
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// 路由规则中 :开头 表示动态变量
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// 外部地址中可以用动态变量 采用 :1 :2 的方式
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// 'news/:month/:day/:id'=>array('News/read?cate=1','status=1'),
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// 'new/:id'=>array('/new.php?id=:1',301), 重定向
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private function parseRule($rule,$route,$regx) {
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// 获取路由地址规则
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$url = is_array($route)?$route[0]:$route;
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// 获取URL地址中的参数
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$paths = explode('/',$regx);
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// 解析路由规则
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$matches = array();
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$rule = explode('/',$rule);
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foreach ($rule as $item){
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if(0===strpos($item,':')) { // 动态变量获取
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if($pos = strpos($item,'^') ) {
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$var = substr($item,1,$pos-1);
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}elseif(strpos($item,'\\')){
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$var = substr($item,1,-2);
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}else{
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$var = substr($item,1);
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}
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$matches[$var] = array_shift($paths);
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}else{ // 过滤URL中的静态变量
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array_shift($paths);
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}
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}
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if(0=== strpos($url,'/') || 0===strpos($url,'http')) { // 路由重定向跳转
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if(strpos($url,':')) { // 传递动态参数
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$values = array_values($matches);
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$url = preg_replace('/:(\d+)/e','$values[\\1-1]',$url);
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}
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header("Location: $url", true,(is_array($route) && isset($route[1]))?$route[1]:301);
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exit;
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}else{
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// 解析路由地址
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$var = $this->parseUrl($url);
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// 解析路由地址里面的动态参数
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$values = array_values($matches);
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foreach ($var as $key=>$val){
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if(0===strpos($val,':')) {
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$var[$key] = $values[substr($val,1)-1];
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}
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}
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$var = array_merge($matches,$var);
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// 解析剩余的URL参数
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if($paths) {
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preg_replace('@(\w+)\/([^\/]+)@e', '$var[strtolower(\'\\1\')]=strip_tags(\'\\2\');', implode('/',$paths));
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}
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// 解析路由自动传入参数
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if(is_array($route) && isset($route[1])) {
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parse_str($route[1],$params);
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$var = array_merge($var,$params);
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}
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$action = $var[C('VAR_ACTION')];
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unset($var[C('VAR_ACTION')]);
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$_GET = array_merge($var,$_GET);
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return $action;
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}
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}
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// 解析正则路由
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// '路由正则'=>'[分组/模块/操作]?参数1=值1&参数2=值2...'
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// '路由正则'=>array('[分组/模块/操作]?参数1=值1&参数2=值2...','额外参数1=值1&额外参数2=值2...')
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// '路由正则'=>'外部地址'
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// '路由正则'=>array('外部地址','重定向代码')
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// 参数值和外部地址中可以用动态变量 采用 :1 :2 的方式
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// '/new\/(\d+)\/(\d+)/'=>array('News/read?id=:1&page=:2&cate=1','status=1'),
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// '/new\/(\d+)/'=>array('/new.php?id=:1&page=:2&status=1','301'), 重定向
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private function parseRegex($matches,$route,$regx) {
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// 获取路由地址规则
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$url = is_array($route)?$route[0]:$route;
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$url = preg_replace('/:(\d+)/e','$matches[\\1]',$url);
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if(0=== strpos($url,'/') || 0===strpos($url,'http')) { // 路由重定向跳转
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header("Location: $url", true,(is_array($route) && isset($route[1]))?$route[1]:301);
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exit;
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}else{
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// 解析路由地址
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$var = $this->parseUrl($url);
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// 解析剩余的URL参数
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$regx = substr_replace($regx,'',0,strlen($matches[0]));
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if($regx) {
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preg_replace('@(\w+)\/([^,\/]+)@e', '$var[strtolower(\'\\1\')]=strip_tags(\'\\2\');', $regx);
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}
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// 解析路由自动传入参数
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if(is_array($route) && isset($route[1])) {
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parse_str($route[1],$params);
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$var = array_merge($var,$params);
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}
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$action = $var[C('VAR_ACTION')];
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unset($var[C('VAR_ACTION')]);
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$_GET = array_merge($var,$_GET);
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}
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return $action;
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}
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} |