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e9fd8e153d
Author | SHA1 | Date |
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tracer | e9fd8e153d | |
tracer | f571d7548a | |
tracer | a55b14c71c | |
tracer | 87959d34b7 | |
tracer | 1ad567f337 |
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@ -0,0 +1,100 @@
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<?php
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namespace App\Entity;
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use Closure;
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class Route
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{
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public function __construct(
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private string $name,
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private string $route,
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private string $regEx,
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private array $parameters,
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private Closure $callback
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)
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{
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// empty body
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}
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/**
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* @return string
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*/
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public function getName(): string
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{
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return $this->name;
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}
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/**
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* @param string $name
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*/
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public function setName(string $name): void
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{
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$this->name = $name;
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}
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/**
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* @return string
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*/
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public function getRoute(): string
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{
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return $this->route;
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}
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/**
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* @param string $route
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*/
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public function setRoute(string $route): void
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{
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$this->route = $route;
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}
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/**
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* @return string
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*/
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public function getRegEx(): string
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{
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return $this->regEx;
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}
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/**
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* @param string $regEx
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*/
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public function setRegEx(string $regEx): void
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{
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$this->regEx = $regEx;
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}
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/**
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* @return array
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*/
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public function getParameters(): array
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{
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return $this->parameters;
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}
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/**
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* @param array $parameters
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*/
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public function setParameters(array $parameters): void
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{
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$this->parameters = $parameters;
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}
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/**
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* @return Closure
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*/
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public function getCallback(): Closure
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{
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return $this->callback;
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}
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/**
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* @param Closure $callback
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*/
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public function setCallback(Closure $callback): void
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{
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$this->callback = $callback;
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}
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}
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@ -3,51 +3,61 @@
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namespace App\Service;
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use App\Entity\Route;
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use Closure;
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/*
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* A small router implementation for the address book demo.
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* Currently it doesn't handle GET requests, as not needed.
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* But if I reuse the code in my bind Api I'll enable GET as well.
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*/
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class Router
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{
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private array $uri;
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private array $routes;
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public function __construct()
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/*
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* This method takes a route like /admin/users/{user} and creates a regex to match on call
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*/
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function addRoute(string $name, string $route, Closure $callback): void
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{
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$uri = parse_url(url: $_SERVER['REQUEST_URI'], component: PHP_URL_PATH);
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$this->uri = explode(separator: '/', string: $uri);
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}
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public function registerRoute(string $route, \Closure $callback): void
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{
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$this->routes[$route] = $callback;
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}
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private function matchRoute($url = '/users/tracer/posts/tracer', $method = 'GET')
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{
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$reqUrl = $url;
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$reqUrl = rtrim(string: $reqUrl, characters: "/");
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foreach ($this->routes as $route => $closure) {
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// convert urls like '/users/:uid/posts/:pid' to regular expression
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// $pattern = "@^" . preg_replace('/\\\:[a-zA-Z0-9\_\-]+/', '([a-zA-Z0-9\-\_]+)', preg_quote($route['url'])) . "$@D";
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$pattern = "@^" . preg_replace('\\/users/:[a-zA-Z0-9\_\-]+/', '([a-zA-Z0-9\-\_]+)', $route) . "$@D";
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// echo $pattern."\n";
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$params = [];
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// check if the current request params the expression
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$match = preg_match($pattern, $reqUrl, $params);
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if ($match) {
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// remove the first match
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array_shift($params);
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// call the callback with the matched positions as params
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// return call_user_func_array($route['callback'], $params);
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return [$route, $params];
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}
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}
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return [];
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// check for parameters
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preg_match_all(pattern: "/(?<={).+?(?=})/", subject: $route, matches: $matches);
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$parameters = $matches[0];
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// create regex for route:
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$regex = preg_replace(pattern: '/(?<={).+?(?=})/', replacement: '(.*?)', subject: $route);
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// code below is ugly, better match including the braces
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$regex = str_replace(search: '{', replace: '', subject: $regex);
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$regex = str_replace(search: '}', replace: '', subject: $regex);
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$regex = '/^' . str_replace(search: "/", replace: '\\/', subject: $regex) . '$/i';
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$route = new Route(name: $name, route: $route, regEx: $regex, parameters: $parameters, callback: $callback);
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$this->routes[] = $route;
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}
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/*
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* Check is there is a known route and executed the callback.
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* Currently no 404 handling.
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*/
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public function handleRouting(): void
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{
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$foo = $this->matchRoute();
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var_dump($foo);
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$requestUri = $_SERVER['REQUEST_URI'];
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foreach ($this->routes as $route) {
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if (preg_match(pattern: $route->getRegex(), subject: $requestUri, matches: $matches)) {
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$parameters = [];
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foreach ($route->getParameters() as $id => $parameter) {
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$parameters[$parameter] = $matches[$id +1];
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}
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// PHP is mad about named parameters in call_user_func
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// Uncaught Error: Unknown named parameter $args in …
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// But PHPStorm seems happy without them. So what?
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call_user_func($route->getCallback(), $parameters);
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return;
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}
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}
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// Throw a 404 result later …
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die("Invalid route: $requestUri");
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}
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}
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@ -11,30 +11,8 @@ class Template
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// empty body
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}
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/**
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* @throws Exception
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*/
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public function render(string $templateName): void
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{
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$template = file_get_contents(filename: $this->templateDir . $templateName);
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// search for includes
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preg_match_all(pattern: '/{% include ?\'?(.*?)\'? ?%}/i', subject: $template, matches: $matches, flags: PREG_SET_ORDER);
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foreach ($matches as $value) {
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$token = $value[0];
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$include = $this->templateDir . $value[1];
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if (file_exists(filename: $include)) {
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$replacement = file_get_contents(filename: $include);
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} else {
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throw new Exception(message: "Missing included file: $include");
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}
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$template = str_replace(search: $token, replace: $replacement, subject: $template);
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}
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// remove the original template code
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$template = preg_replace(pattern: '/{% include ?\'?(.*?)\'? ?%}/i', replacement: '', subject: $template);
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echo $template;
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include $this->templateDir . $templateName;
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}
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}
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