| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316 | <?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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