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- <?php
- // +----------------------------------------------------------------------
- // | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
- // +----------------------------------------------------------------------
- // | Copyright (c) 2006-2014 http://thinkphp.cn All rights reserved.
- // +----------------------------------------------------------------------
- // | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
- // +----------------------------------------------------------------------
- // | Author: liu21st <liu21st@gmail.com>
- // +----------------------------------------------------------------------
- namespace Think;
- /**
- * ThinkPHP路由解析类
- */
- class Route {
-
- // 路由检测
- public static function check(){
- $depr = C('URL_PATHINFO_DEPR');
- $regx = preg_replace('/\.'.__EXT__.'$/i','',trim($_SERVER['PATH_INFO'],$depr));
- // 分隔符替换 确保路由定义使用统一的分隔符
- if('/' != $depr){
- $regx = str_replace($depr,'/',$regx);
- }
- // URL映射定义(静态路由)
- $maps = C('URL_MAP_RULES');
- if(isset($maps[$regx])) {
- $var = self::parseUrl($maps[$regx]);
- $_GET = array_merge($var, $_GET);
- return true;
- }
- // 动态路由处理
- $routes = C('URL_ROUTE_RULES');
- if(!empty($routes)) {
- foreach ($routes as $rule=>$route){
- if(is_numeric($rule)){
- // 支持 array('rule','adddress',...) 定义路由
- $rule = array_shift($route);
- }
- if(is_array($route) && isset($route[2])){
- // 路由参数
- $options = $route[2];
- if(isset($options['ext']) && __EXT__ != $options['ext']){
- // URL后缀检测
- continue;
- }
- if(isset($options['method']) && REQUEST_METHOD != strtoupper($options['method'])){
- // 请求类型检测
- continue;
- }
- // 自定义检测
- if(!empty($options['callback']) && is_callable($options['callback'])) {
- if(false === call_user_func($options['callback'])) {
- continue;
- }
- }
- }
- if(0===strpos($rule,'/') && preg_match($rule,$regx,$matches)) { // 正则路由
- if($route instanceof \Closure) {
- // 执行闭包
- $result = self::invokeRegx($route, $matches);
- // 如果返回布尔值 则继续执行
- return is_bool($result) ? $result : exit;
- }else{
- return self::parseRegex($matches,$route,$regx);
- }
- }else{ // 规则路由
- $len1 = substr_count($regx,'/');
- $len2 = substr_count($rule,'/');
- if($len1>=$len2 || strpos($rule,'[')) {
- if('$' == substr($rule,-1,1)) {// 完整匹配
- if($len1 != $len2) {
- continue;
- }else{
- $rule = substr($rule,0,-1);
- }
- }
- $match = self::checkUrlMatch($regx,$rule);
- if(false !== $match) {
- if($route instanceof \Closure) {
- // 执行闭包
- $result = self::invokeRule($route, $match);
- // 如果返回布尔值 则继续执行
- return is_bool($result) ? $result : exit;
- }else{
- return self::parseRule($rule,$route,$regx);
- }
- }
- }
- }
- }
- }
- return false;
- }
- // 检测URL和规则路由是否匹配
- private static function checkUrlMatch($regx,$rule) {
- $m1 = explode('/',$regx);
- $m2 = explode('/',$rule);
- $var = array();
- foreach ($m2 as $key=>$val){
- if(0 === strpos($val,'[:')){
- $val = substr($val,1,-1);
- }
-
- if(':' == substr($val,0,1)) {// 动态变量
- if($pos = strpos($val,'|')){
- // 使用函数过滤
- $val = substr($val,1,$pos-1);
- }
- if(strpos($val,'\\')) {
- $type = substr($val,-1);
- if('d'==$type) {
- if(isset($m1[$key]) && !is_numeric($m1[$key]))
- return false;
- }
- $name = substr($val, 1, -2);
- }elseif($pos = strpos($val,'^')){
- $array = explode('-',substr(strstr($val,'^'),1));
- if(in_array($m1[$key],$array)) {
- return false;
- }
- $name = substr($val, 1, $pos - 1);
- }else{
- $name = substr($val, 1);
- }
- $var[$name] = isset($m1[$key])?$m1[$key]:'';
- }elseif(0 !== strcasecmp($val,$m1[$key])){
- return false;
- }
- }
- // 成功匹配后返回URL中的动态变量数组
- return $var;
- }
- // 解析规范的路由地址
- // 地址格式 [控制器/操作?]参数1=值1&参数2=值2...
- private static function parseUrl($url) {
- $var = array();
- if(false !== strpos($url,'?')) { // [控制器/操作?]参数1=值1&参数2=值2...
- $info = parse_url($url);
- $path = explode('/',$info['path']);
- parse_str($info['query'],$var);
- }elseif(strpos($url,'/')){ // [控制器/操作]
- $path = explode('/',$url);
- }else{ // 参数1=值1&参数2=值2...
- parse_str($url,$var);
- }
- if(isset($path)) {
- $var[C('VAR_ACTION')] = array_pop($path);
- if(!empty($path)) {
- $var[C('VAR_CONTROLLER')] = array_pop($path);
- }
- if(!empty($path)) {
- $var[C('VAR_MODULE')] = array_pop($path);
- }
- }
- return $var;
- }
- // 解析规则路由
- // '路由规则'=>'[控制器/操作]?额外参数1=值1&额外参数2=值2...'
- // '路由规则'=>array('[控制器/操作]','额外参数1=值1&额外参数2=值2...')
- // '路由规则'=>'外部地址'
- // '路由规则'=>array('外部地址','重定向代码')
- // 路由规则中 :开头 表示动态变量
- // 外部地址中可以用动态变量 采用 :1 :2 的方式
- // 'news/:month/:day/:id'=>array('News/read?cate=1','status=1'),
- // 'new/:id'=>array('/new.php?id=:1',301), 重定向
- private static function parseRule($rule,$route,$regx) {
- // 获取路由地址规则
- $url = is_array($route)?$route[0]:$route;
- // 获取URL地址中的参数
- $paths = explode('/',$regx);
- // 解析路由规则
- $matches = array();
- $rule = explode('/',$rule);
- foreach ($rule as $item){
- $fun = '';
- if(0 === strpos($item,'[:')){
- $item = substr($item,1,-1);
- }
- if(0===strpos($item,':')) { // 动态变量获取
- if($pos = strpos($item,'|')){
- // 支持函数过滤
- $fun = substr($item,$pos+1);
- $item = substr($item,0,$pos);
- }
- if($pos = strpos($item,'^') ) {
- $var = substr($item,1,$pos-1);
- }elseif(strpos($item,'\\')){
- $var = substr($item,1,-2);
- }else{
- $var = substr($item,1);
- }
- $matches[$var] = !empty($fun)? $fun(array_shift($paths)) : array_shift($paths);
- }else{ // 过滤URL中的静态变量
- array_shift($paths);
- }
- }
- if(0=== strpos($url,'/') || 0===strpos($url,'http')) { // 路由重定向跳转
- if(strpos($url,':')) { // 传递动态参数
- $values = array_values($matches);
- $url = preg_replace_callback('/:(\d+)/', function($match) use($values){ return $values[$match[1] - 1]; }, $url);
- }
- header("Location: $url", true,(is_array($route) && isset($route[1]))?$route[1]:301);
- exit;
- }else{
- // 解析路由地址
- $var = self::parseUrl($url);
- // 解析路由地址里面的动态参数
- $values = array_values($matches);
- foreach ($var as $key=>$val){
- if(0===strpos($val,':')) {
- $var[$key] = $values[substr($val,1)-1];
- }
- }
- $var = array_merge($matches,$var);
- // 解析剩余的URL参数
- if(!empty($paths)) {
- preg_replace_callback('/(\w+)\/([^\/]+)/', function($match) use(&$var){ $var[strtolower($match[1])]=strip_tags($match[2]);}, implode('/',$paths));
- }
- // 解析路由自动传入参数
- if(is_array($route) && isset($route[1])) {
- if(is_array($route[1])){
- $params = $route[1];
- }else{
- parse_str($route[1],$params);
- }
- $var = array_merge($var,$params);
- }
- $_GET = array_merge($var,$_GET);
- }
- return true;
- }
- // 解析正则路由
- // '路由正则'=>'[控制器/操作]?参数1=值1&参数2=值2...'
- // '路由正则'=>array('[控制器/操作]?参数1=值1&参数2=值2...','额外参数1=值1&额外参数2=值2...')
- // '路由正则'=>'外部地址'
- // '路由正则'=>array('外部地址','重定向代码')
- // 参数值和外部地址中可以用动态变量 采用 :1 :2 的方式
- // '/new\/(\d+)\/(\d+)/'=>array('News/read?id=:1&page=:2&cate=1','status=1'),
- // '/new\/(\d+)/'=>array('/new.php?id=:1&page=:2&status=1','301'), 重定向
- private static function parseRegex($matches,$route,$regx) {
- // 获取路由地址规则
- $url = is_array($route)?$route[0]:$route;
- $url = preg_replace_callback('/:(\d+)/', function($match) use($matches){return $matches[$match[1]];}, $url);
- if(0=== strpos($url,'/') || 0===strpos($url,'http')) { // 路由重定向跳转
- header("Location: $url", true,(is_array($route) && isset($route[1]))?$route[1]:301);
- exit;
- }else{
- // 解析路由地址
- $var = self::parseUrl($url);
- // 处理函数
- foreach($var as $key=>$val){
- if(strpos($val,'|')){
- list($val,$fun) = explode('|',$val);
- $var[$key] = $fun($val);
- }
- }
- // 解析剩余的URL参数
- $regx = substr_replace($regx,'',0,strlen($matches[0]));
- if($regx) {
- preg_replace_callback('/(\w+)\/([^\/]+)/', function($match) use(&$var){
- $var[strtolower($match[1])] = strip_tags($match[2]);
- }, $regx);
- }
- // 解析路由自动传入参数
- if(is_array($route) && isset($route[1])) {
- if(is_array($route[1])){
- $params = $route[1];
- }else{
- parse_str($route[1],$params);
- }
- $var = array_merge($var,$params);
- }
- $_GET = array_merge($var,$_GET);
- }
- return true;
- }
- // 执行正则匹配下的闭包方法 支持参数调用
- static private function invokeRegx($closure, $var = array()) {
- $reflect = new \ReflectionFunction($closure);
- $params = $reflect->getParameters();
- $args = array();
- array_shift($var);
- foreach ($params as $param){
- if(!empty($var)) {
- $args[] = array_shift($var);
- }elseif($param->isDefaultValueAvailable()){
- $args[] = $param->getDefaultValue();
- }
- }
- return $reflect->invokeArgs($args);
- }
- // 执行规则匹配下的闭包方法 支持参数调用
- static private function invokeRule($closure, $var = array()) {
- $reflect = new \ReflectionFunction($closure);
- $params = $reflect->getParameters();
- $args = array();
- foreach ($params as $param){
- $name = $param->getName();
- if(isset($var[$name])) {
- $args[] = $var[$name];
- }elseif($param->isDefaultValueAvailable()){
- $args[] = $param->getDefaultValue();
- }
- }
- return $reflect->invokeArgs($args);
- }
- }
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