<?php<liu21st@gmail.com>
/**
* ThinkPHP内置的Dispatcher类
* 完成URL解析、路由和调度
* @category Think
* @package Think
* @subpackage Core
* @author liu21st <liu21st@gmail.com>
*/
class Dispatcher {
static public function dispatch() {
$urlMode = C('URL_MODEL');
if(isset($_GET[C('VAR_PATHINFO')])) { $_SERVER['PATH_INFO'] = $_GET[C('VAR_PATHINFO')];
unset($_GET[C('VAR_PATHINFO')]);
}
if($urlMode == URL_COMPAT ){
define('PHP_FILE',_PHP_FILE_.'?'.C('VAR_PATHINFO').'=');
}elseif($urlMode == URL_REWRITE ) {
$url = dirname(_PHP_FILE_);
if($url == '/' || $url == '\\')
$url = '';
define('PHP_FILE',$url);
}else {
define('PHP_FILE',_PHP_FILE_);
}
if(C('APP_SUB_DOMAIN_DEPLOY')) {
$rules = C('APP_SUB_DOMAIN_RULES');
if(isset($rules[$_SERVER['HTTP_HOST']])) { $rule = $rules[$_SERVER['HTTP_HOST']];
}else{
$subDomain = strtolower(substr($_SERVER['HTTP_HOST'],0,strpos($_SERVER['HTTP_HOST'],'.')));
define('SUB_DOMAIN',$subDomain); if($subDomain && isset($rules[$subDomain])) {
$rule = $rules[$subDomain];
}elseif(isset($rules['*'])){ if('www' != $subDomain && !in_array($subDomain,C('APP_SUB_DOMAIN_DENY'))) {
$rule = $rules['*'];
}
}
}
if(!empty($rule)) {
$array = explode('/',$rule[0]);
$module = array_pop($array);
if(!empty($module)) {
$_GET[C('VAR_MODULE')] = $module;
$domainModule = true;
}
if(!empty($array)) {
$_GET[C('VAR_GROUP')] = array_pop($array);
$domainGroup = true;
}
if(isset($rule[1])) { parse_str($rule[1],$parms);
$_GET = array_merge($_GET,$parms);
}
}
}
if(!isset($_SERVER['PATH_INFO'])) {
$types = explode(',',C('URL_PATHINFO_FETCH'));
foreach ($types as $type){
if(0===strpos($type,':')) $_SERVER['PATH_INFO'] = call_user_func(substr($type,1));
break;
}elseif(!empty($_SERVER[$type])) {
$_SERVER['PATH_INFO'] = (0 === strpos($_SERVER[$type],$_SERVER['SCRIPT_NAME']))?
substr($_SERVER[$type], strlen($_SERVER['SCRIPT_NAME'])) : $_SERVER[$type];
break;
}
}
}
$depr = C('URL_PATHINFO_DEPR');
if(!empty($_SERVER['PATH_INFO'])) {
tag('path_info');
$part = pathinfo($_SERVER['PATH_INFO']);
define('__EXT__', isset($part['extension'])?strtolower($part['extension']):'');
if(__EXT__){
if(C('URL_DENY_SUFFIX') && preg_match('/\.('.trim(C('URL_DENY_SUFFIX'),'.').')$/i', $_SERVER['PATH_INFO'])){
send_http_status(404);
exit;
}
if(C('URL_HTML_SUFFIX')) {
$_SERVER['PATH_INFO'] = preg_replace('/\.('.trim(C('URL_HTML_SUFFIX'),'.').')$/i', '', $_SERVER['PATH_INFO']);
}else{
$_SERVER['PATH_INFO'] = preg_replace('/.'.__EXT__.'$/i','',$_SERVER['PATH_INFO']);
}
}
if(!self::routerCheck()){ $paths = explode($depr,trim($_SERVER['PATH_INFO'],'/'));
if(C('VAR_URL_PARAMS')) {
$_GET[C('VAR_URL_PARAMS')] = $paths;
}
$var = array();
if (C('APP_GROUP_LIST') && !isset($_GET[C('VAR_GROUP')])){
$var[C('VAR_GROUP')] = in_array(strtolower($paths[0]),explode(',',strtolower(C('APP_GROUP_LIST'))))? array_shift($paths) : '';
if(C('APP_GROUP_DENY') && in_array(strtolower($var[C('VAR_GROUP')]),explode(',',strtolower(C('APP_GROUP_DENY'))))) {
exit;
}
}
if(!isset($_GET[C('VAR_MODULE')])) $var[C('VAR_MODULE')] = array_shift($paths);
}
$var[C('VAR_ACTION')] = array_shift($paths);
preg_replace('@(\w+)\/([^\/]+)@e', '$var[\'\\1\']=strip_tags(\'\\2\');', implode('/',$paths));
$_GET = array_merge($var,$_GET);
}
define('__INFO__',$_SERVER['PATH_INFO']);
}else{
define('__INFO__','');
}
define('__SELF__',strip_tags($_SERVER['REQUEST_URI']));
define('__APP__',strip_tags(PHP_FILE));
if (C('APP_GROUP_LIST')) {
define('GROUP_NAME', self::getGroup(C('VAR_GROUP')));
define('__GROUP__',(!empty($domainGroup) || strtolower(GROUP_NAME) == strtolower(C('DEFAULT_GROUP')) )?__APP__ : __APP__.'/'.(C('URL_CASE_INSENSITIVE') ? strtolower(GROUP_NAME) : GROUP_NAME));
}
define('BASE_LIB_PATH', (defined('GROUP_NAME') && C('APP_GROUP_MODE')==1) ? APP_PATH.C('APP_GROUP_PATH').'/'.GROUP_NAME.'/' : LIB_PATH);
if(defined('GROUP_NAME')) {
C('CACHE_PATH',CACHE_PATH.GROUP_NAME.'/');
if(1 == C('APP_GROUP_MODE')){ $config_path = BASE_LIB_PATH.'Conf/';
$common_path = BASE_LIB_PATH.'Common/';
}else{ $config_path = CONF_PATH.GROUP_NAME.'/';
$common_path = COMMON_PATH.GROUP_NAME.'/';
}
if(is_file($config_path.'config.php'))
C(include $config_path.'config.php');
if(is_file($config_path.'alias.php'))
alias_import(include $config_path.'alias.php');
if(is_file($config_path.'tags.php'))
C('tags', include $config_path.'tags.php');
if(is_file($common_path.'function.php'))
include $common_path.'function.php';
}else{
C('CACHE_PATH',CACHE_PATH);
}
define('MODULE_NAME',self::getModule(C('VAR_MODULE')));
define('ACTION_NAME',self::getAction(C('VAR_ACTION')));
$moduleName = defined('MODULE_ALIAS')?MODULE_ALIAS:MODULE_NAME;
if(defined('GROUP_NAME')) {
define('__URL__',!empty($domainModule)?__GROUP__.$depr : __GROUP__.$depr.( C('URL_CASE_INSENSITIVE') ? strtolower($moduleName) : $moduleName ) );
}else{
define('__URL__',!empty($domainModule)?__APP__.'/' : __APP__.'/'.( C('URL_CASE_INSENSITIVE') ? strtolower($moduleName) : $moduleName) );
}
define('__ACTION__',__URL__.$depr.(defined('ACTION_ALIAS')?ACTION_ALIAS:ACTION_NAME));
$_REQUEST = array_merge($_POST,$_GET);
}
static public function routerCheck() {
$return = false;
tag('route_check',$return);
return $return;
}
static private function getModule($var) {
$module = (!empty($_GET[$var])? $_GET[$var]:C('DEFAULT_MODULE'));
unset($_GET[$var]);
if($maps = C('URL_MODULE_MAP')) {
if(isset($maps[strtolower($module)])) {
define('MODULE_ALIAS',strtolower($module));
return $maps[MODULE_ALIAS];
}elseif(array_search(strtolower($module),$maps)){
return '';
}
}
if(C('URL_CASE_INSENSITIVE')) {
$module = ucfirst(parse_name($module,1));
}
return strip_tags($module);
}
static private function getAction($var) {
$action = !empty($_POST[$var]) ?
$_POST[$var] :
(!empty($_GET[$var])?$_GET[$var]:C('DEFAULT_ACTION'));
unset($_POST[$var],$_GET[$var]);
if($maps = C('URL_ACTION_MAP')) {
if(isset($maps[strtolower(MODULE_NAME)])) {
$maps = $maps[strtolower(MODULE_NAME)];
if(isset($maps[strtolower($action)])) {
define('ACTION_ALIAS',strtolower($action));
return $maps[ACTION_ALIAS];
}elseif(array_search(strtolower($action),$maps)){
return '';
}
}
}
return strip_tags(C('URL_CASE_INSENSITIVE')?strtolower($action):$action);
}
static private function getGroup($var) {
$group = (!empty($_GET[$var])?$_GET[$var]:C('DEFAULT_GROUP'));
unset($_GET[$var]);
return strip_tags(C('URL_CASE_INSENSITIVE') ?ucfirst(strtolower($group)):$group);
}
}