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