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<?php |
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namespace HnrAzevedo\Router; |
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use Exception; |
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class Router{ |
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use Helper, CheckTrait; |
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private static $instance = null; |
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private array $routers = []; |
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private ?string $prefix = null; |
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private $protocol = null; |
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private $filtersSet = null; |
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private $filter = null; |
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private $group = false; |
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private $lastReturn = null; |
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public function __construct() |
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{ |
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return $this; |
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} |
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public static function create(): Router |
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{ |
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self::getInstance()->check_config(); |
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self::getInstance()->import(ROUTER_CONFIG['path']); |
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return self::getInstance(); |
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} |
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public static function getInstance(): Router |
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{ |
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self::$instance = (is_null(self::$instance)) ? new self() : self::$instance; |
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return self::$instance; |
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} |
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public static function form(string $uri, string $controll): Router |
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{ |
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return self::getInstance()->add($uri, $controll, 'form'); |
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} |
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public static function get(string $uri, string $controll): Router |
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{ |
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return self::getInstance()->add($uri, $controll, 'get'); |
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} |
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public static function post(string $uri, string $controll): Router |
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{ |
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return self::getInstance()->add($uri, $controll, 'post'); |
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} |
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public static function ajax(string $uri, string $controll): Router |
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{ |
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return self::getInstance()->add($uri, $controll, 'ajax'); |
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} |
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public static function add(string $uri, string $controll, string $protocol): Router |
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{ |
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return self::getInstance()->set($uri, $controll, $protocol); |
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} |
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public function set($url , $role , $protocol = null): Router |
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{ |
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$url = (substr($url,0,1) !=='/' and strlen($url) > 0) ? "/{$url}" : $url; |
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foreach($this->routers as $key => $value){ |
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if( md5($this->prefix . $value['url'] . $value['protocol'] ) === md5( $url . $protocol ) ){ |
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throw new Exception("There is already a route with the url {$url} and with the {$protocol} protocol configured."); |
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} |
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} |
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$route = [ |
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'url' => $this->prefix.$url, |
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'role' => $role, |
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'protocol' => $protocol, |
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'filters' => null, |
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'group' => self::getInstance()->group |
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]; |
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$this->routers[] = $route; |
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return self::getInstance(); |
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} |
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public static function group(string $prefix,$callback): Router |
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{ |
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self::getInstance()->prefix = (substr($prefix,0,1) !== '/') ? "/{$prefix}" : $prefix; |
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self::getInstance()->group = sha1(date('d/m/Y h:m:i')); |
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$callback(); |
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self::getInstance()->group = null; |
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self::getInstance()->prefix = null; |
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self::getInstance()->lastReturn = true; |
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return self::getInstance(); |
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} |
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public static function name(string $name): Router |
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{ |
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if(self::getInstance()->lastReturn){ |
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throw new Exception("There is no reason to call a {$name} route group."); |
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} |
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$currentRoute = end(self::getInstance()->routers); |
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foreach(self::getInstance()->routers as $key => $value){ |
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if(array_key_exists($name, self::getInstance()->routers)){ |
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throw new Exception("There is already a route with the name {$name} configured."); |
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} |
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} |
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$currentRoute['name'] = $name; |
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self::getInstance()->routers[count(self::getInstance()->routers)-1] = $currentRoute; |
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self::getInstance()->lastReturn = null; |
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return self::getInstance(); |
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} |
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private function byName(string $route_name) |
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{ |
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$currentProtocol = $this->getProtocol(); |
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$this->check_name($route_name); |
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$route = $this->routers[$route_name]; |
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$this->check_protocol($route['protocol'], $currentProtocol); |
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$this->check_filtering($route); |
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$this->Controller($route['role']); |
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return true; |
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} |
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public function dispatch(?string $route_name = null): bool |
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{ |
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if(!is_null($route_name)){ |
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return $this->byName($route_name); |
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} |
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$currentProtocol = $this->getProtocol(); |
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foreach(array_reverse($this->routers) as $r => $route){ |
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$this->hasProtocol($route, $currentProtocol); |
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$route_loop = explode( |
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'/', |
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(substr($route['url'],strlen($route['url'])-1,1) === '/') |
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? substr($route['url'], 0, -1) |
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: $route['url'] |
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); |
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/* ONLY FOR DEBUG CONDITION */ |
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$route_request = $route_loop; |
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/*$route_request = explode( |
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'/', |
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(substr($_SERVER['REQUEST_URI'],strlen($_SERVER['REQUEST_URI'])-1,1) === '/') |
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? substr($_SERVER['REQUEST_URI'], 0, -1) |
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: $_SERVER['REQUEST_URI'] |
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);*/ |
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if(count($route_loop) !== count($route_request)){ |
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continue; |
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} |
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for($rr = 0; $rr < count($route_loop); $rr++){ |
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$param = (substr($route_loop[$rr],0,1)==='{'); |
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if($param){ |
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$param_name = substr($route_loop[$rr],1,strlen($route_loop[$rr])-2); |
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$data[$param_name] = $route_request[$rr]; |
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} |
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if(!$param and $route_loop[$rr] !== $route_request[$rr]){ |
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continue 2; |
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} |
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} |
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$this->check_filtering($route); |
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$this->Controller($route['role']); |
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return true; |
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} |
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throw new Exception('Page not found.',404); |
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} |
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public static function filter($filters): Router |
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{ |
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if(self::getInstance()->lastReturn !== null){ |
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$currentGroup = end(self::getInstance()->routers)['group']; |
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foreach (self::getInstance()->routers as $key => $value) { |
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if($value['group'] === $currentGroup){ |
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$currentRoute = self::getInstance()->addFilter(self::getInstance()->routers[$key],$filters); |
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self::getInstance()->routers[$key] = $currentRoute; |
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} |
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} |
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}else{ |
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self::getInstance()->routers[count(self::getInstance()->routers)-1] = self::getInstance()->addFilter(end(self::getInstance()->routers),$filters); |
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} |
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return self::getInstance(); |
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} |
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public static function addFilter(array $route, $filter): array |
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{ |
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if(is_null($route['filters'])){ |
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$route['filters'] = $filter; |
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return $route; |
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} |
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$filters = (is_array($filter)) ? $filter : [0 => $filter]; |
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if(is_array($route['filters'])){ |
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foreach ($route['filters'] as $key => $value) { |
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$filters[] = $value; |
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} |
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}else{ |
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$filters[] = $route['filters']; |
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} |
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$route['filters'] = $filters; |
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return $route; |
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} |
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public function Controller(string $controll): void |
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{ |
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$data = $this->getData(); |
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foreach ($data['GET'] as $name => $value) { |
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$controll = str_replace('{'.$name.'}',$value,$controll); |
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} |
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$d = explode(':',$controll); |
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if(count($d) != 2){ |
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throw new Exception("Controller {$controll} badly set."); |
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} |
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if(!class_exists('Controllers\\' . ucfirst($d[0]))){ |
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throw new Exception("No controller {$d[0]} found."); |
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} |
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if(!method_exists('Controllers\\' . ucfirst($d[0]), $d[1])){ |
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throw new Exception("No method {$d[1]} found for {$d[0]}."); |
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} |
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$controller = 'Controllers\\' . ucfirst($d[0]); |
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$controller = new $controller(); |
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$method = $d[1]; |
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if( ( $this->getProtocol() == 'form') ){ |
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$this->ControllerForm($controller, $method, $data['POST']); |
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}else { |
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$controller->$method($data); |
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} |
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} |
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} |
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