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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
- * @param array $paths path_info数组
- * @return boolean
- */
- public static function check($paths = array())
- {
- $rules = self::ruleCache();
- if (!empty($paths)) {
- $regx = implode('/', $paths);
- } else {
- $depr = C('URL_PATHINFO_DEPR');
- $regx = preg_replace('/\.' . __EXT__ . '$/i', '', trim($_SERVER['PATH_INFO'], $depr));
- if (!$regx) {
- return false;
- }
- // 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, '/', $regx);
- }
- }
- // 静态路由检查
- if (isset($rules[0][$regx])) {
- $route = $rules[0][$regx];
- $_SERVER['PATH_INFO'] = $route[0];
- $args = array_pop($route);
- if (!empty($route[1])) {
- $args = array_merge($args, $route[1]);
- }
- $_GET = array_merge($args, $_GET);
- return true;
- }
- // 动态路由检查
- if (!empty($rules[1])) {
- foreach ($rules[1] as $rule => $route) {
- $args = array_pop($route);
- if (isset($route[2])) {
- // 路由参数检查
- if (!self::checkOption($route[2], __EXT__)) {
- continue;
- }
- }
- if ($matches = self::checkUrlMatch($rule, $args, $regx)) {
- if ($route[0] instanceof \Closure) {
- // 执行闭包
- $result = self::invoke($route[0], $matches);
- // 如果返回布尔值 则继续执行
- return is_bool($result) ? $result : exit;
- } else {
- // 存在动态变量
- if (strpos($route[0], ':')) {
- $matches = array_values($matches);
- $route[0] = preg_replace_callback('/:(\d+)/', function ($match) use (&$matches) {
- return $matches[$match[1] - 1];
- }, $route[0]);
- }
- // 路由参数关联$matches
- if ('/' == substr($rule, 0, 1)) {
- $rule_params = array();
- foreach ($route[1] as $param_key => $param) {
- list($param_name, $param_value) = explode('=', $param, 2);
- if (!is_null($param_value)) {
- if (preg_match('/^:(\d*)$/', $param_value, $match_index)) {
- $match_index = $match_index[1] - 1;
- $param_value = $matches[$match_index];
- }
- $rule_params[$param_name] = $param_value;
- unset($route[1][$param_key]);
- }
- }
- $route[1] = $rule_params;
- }
- // 重定向
- if ('/' == substr($route[0], 0, 1)) {
- header("Location: $route[0]", true, $route[1]);
- exit;
- } else {
- $depr = C('URL_PATHINFO_DEPR');
- if ('/' != $depr) {
- $route[0] = str_replace('/', $depr, $route[0]);
- }
- $_SERVER['PATH_INFO'] = $route[0];
- if (!empty($route[1])) {
- $_GET = array_merge($route[1], $_GET);
- }
- return true;
- }
- }
- }
- }
- }
- return false;
- }
- /**
- * 路由反向解析
- * @param string $path 控制器/方法
- * @param array $vars url参数
- * @param string $depr 分隔符
- * @param string|true $suffix url后缀
- * @return string|false
- */
- public static function reverse($path, &$vars, $depr, $suffix = true)
- {
- static $_rules;
- if (is_null($_rules)) {
- if ($rules = self::ruleCache()) {
- foreach ($rules as $i => $rules2) {
- foreach ($rules2 as $rule => $route) {
- if (is_array($route) && is_string($route[0]) && '/' != substr($route[0], 0, 1)) {
- $_rules[$i][$route[0]][$rule] = $route;
- }
- }
- }
- }
- }
- // 静态路由
- if (isset($_rules[0][$path])) {
- foreach ($_rules[0][$path] as $rule => $route) {
- $args = array_pop($route);
- if (count($vars) == count($args) && !empty($vars) && !array_diff($vars, $args)) {
- return str_replace('/', $depr, $rule);
- }
- }
- }
- if (isset($_rules[1][$path])) {
- foreach ($_rules[1][$path] as $rule => $route) {
- $args = array_pop($route);
- $array = array();
- if (isset($route[2])) {
- // 路由参数检查
- if (!self::checkOption($route[2], $suffix)) {
- continue;
- }
- }
- if ('/' != substr($rule, 0, 1)) {
- // 规则路由
- foreach ($args as $key => $val) {
- $flag = false;
- if ($val[0] == 0) {
- // 静态变量值
- $array[$key] = $key;
- continue;
- }
- if (isset($vars[$key])) {
- // 是否有过滤条件
- if (!empty($val[2])) {
- if ($val[2] == 'int') {
- // 是否为数字
- if (!is_numeric($vars[$key]) || !preg_match('/^\d*$/', $vars[$key])) {
- break;
- }
- } else {
- // 排除的名称
- if (in_array($vars[$key], $val[2])) {
- break;
- }
- }
- }
- $flag = true;
- $array[$key] = $vars[$key];
- } elseif ($val[0] == 1) {
- // 如果是必选项
- break;
- }
- }
- // 匹配成功
- if (!empty($flag)) {
- foreach (array_keys($array) as $key) {
- $array[$key] = urlencode($array[$key]);
- unset($vars[$key]);
- }
- return implode($depr, $array);
- }
- } else {
- // 正则路由
- $keys = !empty($args) ? array_keys($args) : array_keys($vars);
- $temp_vars = $vars;
- $str = preg_replace_callback('/\(.*?\)/', function ($match) use (&$temp_vars, &$keys) {
- $k = array_shift($keys);
- $re_var = '';
- if (isset($temp_vars[$k])) {
- $re_var = $temp_vars[$k];
- unset($temp_vars[$k]);
- }
- return urlencode($re_var);
- }, $rule);
- $str = substr($str, 1, -1);
- $str = rtrim(ltrim($str, '^'), '$');
- $str = str_replace('\\', '', $str);
- if (preg_match($rule, $str, $matches)) {
- // 匹配成功
- $vars = $temp_vars;
- return str_replace('/', $depr, $str);
- }
- }
- }
- }
- return false;
- }
- // 规则路由定义方法:
- // '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
- // 正则路由定义方法:
- // '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
- /**
- * 读取规则缓存
- * @param boolean $update 是否更新
- * @return array
- */
- public static function ruleCache($update = false)
- {
- $result = array();
- $module = defined('MODULE_NAME') ? '_' . MODULE_NAME : '';
- if (APP_DEBUG || $update || !$result = S('url_route_rules' . $module)) {
- // 静态路由
- $result[0] = C('URL_MAP_RULES');
- if (!empty($result[0])) {
- foreach ($result[0] as $rule => $route) {
- if (!is_array($route)) {
- $route = array($route);
- }
- if (strpos($route[0], '?')) {
- // 分离参数
- list($route[0], $args) = explode('?', $route[0], 2);
- parse_str($args, $args);
- } else {
- $args = array();
- }
- if (!empty($route[1]) && is_string($route[1])) {
- // 额外参数
- parse_str($route[1], $route[1]);
- }
- $route[] = $args;
- $result[0][$rule] = $route;
- }
- }
- // 动态路由
- $result[1] = C('URL_ROUTE_RULES');
- if (!empty($result[1])) {
- foreach ($result[1] as $rule => $route) {
- if (!is_array($route)) {
- $route = array($route);
- } elseif (is_numeric($rule)) {
- // 支持 array('rule','adddress',...) 定义路由
- $rule = array_shift($route);
- }
- if (!empty($route)) {
- $args = array();
- if (is_string($route[0])) {
- if (0 === strpos($route[0], '/') || 0 === strpos($route[0], 'http')) {
- // 重定向
- if (!isset($route[1])) {
- $route[1] = 301;
- }
- } else {
- if (!empty($route[1]) && is_string($route[1])) {
- // 额外参数
- parse_str($route[1], $route[1]);
- }
- if (strpos($route[0], '?')) {
- // 分离参数
- list($route[0], $params) = explode('?', $route[0], 2);
- if (!empty($params)) {
- foreach (explode('&', $params) as $key => $val) {
- if (0 === strpos($val, ':')) {
- // 动态参数
- $val = substr($val, 1);
- $args[$key] = strpos($val, '|') ? explode('|', $val, 2) : array($val);
- } else {
- $route[1][$key] = $val;
- }
- }
- }
- }
- }
- }
- if ('/' != substr($rule, 0, 1)) {
- // 规则路由
- foreach (explode('/', rtrim($rule, '$')) as $item) {
- $filter = $fun = '';
- $type = 0;
- if (0 === strpos($item, '[:')) {
- // 可选变量
- $type = 2;
- $item = substr($item, 1, -1);
- }
- if (0 === strpos($item, ':')) {
- // 动态变量获取
- $type = $type ?: 1;
- if ($pos = strpos($item, '|')) {
- // 支持函数过滤
- $fun = substr($item, $pos + 1);
- $item = substr($item, 1, $pos - 1);
- }
- if ($pos = strpos($item, '^')) {
- // 排除项
- $filter = explode('-', substr($item, $pos + 1));
- $item = substr($item, 1, $pos - 1);
- } elseif (strpos($item, '\\')) {
- // \d表示限制为数字
- if ('d' == substr($item, -1)) {
- $filter = 'int';
- }
- $item = substr($item, 1, -2);
- } else {
- $item = substr($item, 1);
- }
- }
- $args[$item] = array($type, $fun, $filter);
- }
- }
- $route[] = $args;
- $result[1][$rule] = $route;
- } else {
- unset($result[1][$rule]);
- }
- }
- }
- S('url_route_rules' . $module, $result);
- }
- return $result;
- }
- /**
- * 路由参数检测
- * @param array $options 路由参数
- * @param string|true $suffix URL后缀
- * @return boolean
- */
- private static function checkOption($options, $suffix = true)
- {
- // URL后缀检测
- if (isset($options['ext'])) {
- if ($suffix) {
- $suffix = $suffix === true ? C('URL_HTML_SUFFIX') : $suffix;
- if ($pos = strpos($suffix, '|')) {
- $suffix = substr($suffix, 0, $pos);
- }
- }
- if ($suffix != $options['ext']) {
- return false;
- }
- }
- if (isset($options['method']) && REQUEST_METHOD != strtoupper($options['method'])) {
- // 请求类型检测
- return false;
- }
- // 自定义检测
- if (!empty($options['callback']) && is_callable($options['callback'])) {
- if (false === call_user_func($options['callback'])) {
- return false;
- }
- }
- return true;
- }
- /**
- * 检测URL和路由规则是否匹配
- * @param string $rule 路由规则
- * @param array $args 路由动态变量
- * @param string $regx URL地址
- * @return array|false
- */
- private static function checkUrlMatch(&$rule, &$args, &$regx)
- {
- $params = array();
- if ('/' == substr($rule, 0, 1)) {
- // 正则路由
- if (preg_match($rule, $regx, $matches)) {
- if ($args) { // 存在动态变量
- foreach ($args as $key => $val) {
- $params[$key] = isset($val[1]) ? $val[1]($matches[$val[0]]) : $matches[$val[0]];
- }
- $regx = substr_replace($regx, '', 0, strlen($matches[0]));
- }
- array_shift($matches);
- return $matches;
- } else {
- return false;
- }
- } else {
- $paths = explode('/', $regx);
- // $结尾则要求完整匹配
- if ('$' == substr($rule, -1) && count($args) != count($paths)) {
- return false;
- }
- foreach ($args as $key => $val) {
- $var = array_shift($paths) ?: '';
- if ($val[0] == 0) {
- // 静态变量
- if (0 !== strcasecmp($key, $var)) {
- return false;
- }
- } else {
- if (isset($val[2])) {
- // 设置了过滤条件
- if ($val[2] == 'int') {
- // 如果值不为整数
- if (!preg_match('/^\d*$/', $var)) {
- return false;
- }
- } else {
- // 如果值在排除的名单里
- if (in_array($var, $val[2])) {
- return false;
- }
- }
- }
- if (!empty($var)) {
- $params[$key] = !empty($val[1]) ? $val[1]($var) : $var;
- } elseif ($val[0] == 1) {
- // 不是可选的
- return false;
- }
- }
- }
- $matches = $params;
- $regx = implode('/', $paths);
- }
- // 解析剩余的URL参数
- if ($regx) {
- preg_replace_callback('/(\w+)\/([^\/]+)/', function ($match) use (&$params) {
- $params[strtolower($match[1])] = strip_tags($match[2]);
- }, $regx);
- }
- $_GET = array_merge($params, $_GET);
- // 成功匹配后返回URL中的动态变量数组
- return $matches;
- }
- /**
- * 执行闭包方法 支持参数调用
- * @param function $closure 闭包函数
- * @param array $var 传给闭包的参数
- * @return boolean
- */
- private static function invoke($closure, $var = array())
- {
- $reflect = new \ReflectionFunction($closure);
- $params = $reflect->getParameters();
- $args = array();
- foreach ($params as $i => $param) {
- $name = $param->getName();
- if (isset($var[$name])) {
- $args[] = $var[$name];
- } elseif (isset($var[$i])) {
- $args[] = $var[$i];
- } elseif ($param->isDefaultValueAvailable()) {
- $args[] = $param->getDefaultValue();
- }
- }
- return $reflect->invokeArgs($args);
- }
- }
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