$controller
$controller : string
控制器名
Url Dispatcher
$controller : string
控制器名
$actionName : string
操作名
$app : \think\App
应用对象
$request : \think\Request
请求对象
$rule : \think\route\Rule
路由规则
$dispatch : mixed
调度信息
$param : array
路由变量
<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2021 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
declare (strict_types = 1);
namespace think\route\dispatch;
use think\exception\HttpException;
use think\helper\Str;
use think\Request;
use think\route\Rule;
/**
* Url Dispatcher
*/
class Url extends Controller
{
public function __construct(Request $request, Rule $rule, $dispatch)
{
$this->request = $request;
$this->rule = $rule;
// 解析默认的URL规则
$dispatch = $this->parseUrl($dispatch);
parent::__construct($request, $rule, $dispatch, $this->param);
}
/**
* 解析URL地址
* @access protected
* @param string $url URL
* @return array
*/
protected function parseUrl(string $url): array
{
$depr = $this->rule->config('pathinfo_depr');
$bind = $this->rule->getRouter()->getDomainBind();
if ($bind && preg_match('/^[a-z]/is', $bind)) {
$bind = str_replace('/', $depr, $bind);
// 如果有域名绑定
$url = $bind . ('.' != substr($bind, -1) ? $depr : '') . ltrim($url, $depr);
}
$path = $this->rule->parseUrlPath($url);
if (empty($path)) {
return [null, null];
}
// 解析控制器
$controller = !empty($path) ? array_shift($path) : null;
if ($controller && !preg_match('/^[A-Za-z0-9][\w|\.]*$/', $controller)) {
throw new HttpException(404, 'controller not exists:' . $controller);
}
// 解析操作
$action = !empty($path) ? array_shift($path) : null;
$var = [];
// 解析额外参数
if ($path) {
preg_replace_callback('/(\w+)\|([^\|]+)/', function ($match) use (&$var) {
$var[$match[1]] = strip_tags($match[2]);
}, implode('|', $path));
}
$panDomain = $this->request->panDomain();
if ($panDomain && $key = array_search('*', $var)) {
// 泛域名赋值
$var[$key] = $panDomain;
}
// 设置当前请求的参数
$this->param = $var;
// 封装路由
$route = [$controller, $action];
if ($this->hasDefinedRoute($route)) {
throw new HttpException(404, 'invalid request:' . str_replace('|', $depr, $url));
}
return $route;
}
/**
* 检查URL是否已经定义过路由
* @access protected
* @param array $route 路由信息
* @return bool
*/
protected function hasDefinedRoute(array $route): bool
{
[$controller, $action] = $route;
// 检查地址是否被定义过路由
$name = strtolower(Str::studly($controller) . '/' . $action);
$host = $this->request->host(true);
$method = $this->request->method();
if ($this->rule->getRouter()->getName($name, $host, $method)) {
return true;
}
return false;
}
}