355 lines
8.0 KiB
PHP
355 lines
8.0 KiB
PHP
<?php
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/**
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* Hummingbird Anime Client
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*
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* An API client for Hummingbird to manage anime and manga watch lists
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*
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* @package HummingbirdAnimeClient
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* @author Timothy J. Warren
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* @copyright Copyright (c) 2015 - 2016
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* @link https://github.com/timw4mail/HummingBirdAnimeClient
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* @license MIT
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*/
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namespace Aviat\AnimeClient;
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use Aviat\Ion\Di\ContainerInterface;
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use Aviat\Ion\Friend;
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/**
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* Basic routing/ dispatch
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*/
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class Dispatcher extends RoutingBase {
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/**
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* The route-matching object
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* @var object $router
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*/
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protected $router;
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/**
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* The route matcher
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* @var object $matcher
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*/
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protected $matcher;
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/**
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* Class wrapper for input superglobals
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* @var Psr\Http\Message\ServerRequestInterface
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*/
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protected $request;
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/**
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* Routes added to router
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* @var array $output_routes
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*/
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protected $output_routes;
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/**
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* Constructor
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*
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* @param ContainerInterface $container
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*/
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public function __construct(ContainerInterface $container)
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{
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parent::__construct($container);
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$this->router = $container->get('aura-router')->getMap();
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$this->matcher = $container->get('aura-router')->getMatcher();
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$this->request = $container->get('request');
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$this->output_routes = $this->_setup_routes();
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}
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/**
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* Get the current route object, if one matches
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*
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* @return object
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*/
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public function get_route()
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{
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$logger = $this->container->getLogger('default');
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$raw_route = $this->request->getUri()->getPath();
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$route_path = "/" . trim($raw_route, '/');
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$logger->debug('Dispatcher - Routing data from get_route method');
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$logger->debug(print_r([
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'route_path' => $route_path
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], TRUE));
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return $this->matcher->match($this->request);
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}
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/**
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* Get list of routes applied
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*
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* @return array
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*/
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public function get_output_routes()
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{
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return $this->output_routes;
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}
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/**
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* Handle the current route
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*
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* @codeCoverageIgnore
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* @param object|null $route
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* @return void
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*/
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public function __invoke($route = NULL)
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{
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$logger = $this->container->getLogger('default');
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if (is_null($route))
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{
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$route = $this->get_route();
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$logger->debug('Dispatcher - Route invoke arguments');
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$logger->debug(print_r($route, TRUE));
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}
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if ($route)
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{
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$parsed = $this->process_route(new Friend($route));
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$controller_name = $parsed['controller_name'];
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$action_method = $parsed['action_method'];
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$params = $parsed['params'];
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}
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else
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{
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// If not route was matched, return an appropriate http
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// error message
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$error_route = $this->get_error_params();
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$controller_name = AnimeClient::DEFAULT_CONTROLLER;
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$action_method = $error_route['action_method'];
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$params = $error_route['params'];
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}
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// Actually instantiate the controller
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$this->call($controller_name, $action_method, $params);
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}
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/**
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* Parse out the arguments for the appropriate controller for
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* the current route
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*
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* @param \Aura\Router\Route $route
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* @return array
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*/
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protected function process_route($route)
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{
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if (array_key_exists('controller', $route->attributes))
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{
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$controller_name = $route->attributes['controller'];
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}
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else
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{
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throw new \LogicException("Missing controller");
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}
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// Get the full namespace for a controller if a short name is given
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if (strpos($controller_name, '\\') === FALSE)
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{
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$map = $this->get_controller_list();
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$controller_name = $map[$controller_name];
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}
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$action_method = (array_key_exists('action', $route->attributes))
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? $route->attributes['action']
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: AnimeClient::NOT_FOUND_METHOD;
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$params = [];
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if ( ! empty($route->__get('tokens')))
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{
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$tokens = array_keys($route->__get('tokens'));
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foreach ($tokens as $param)
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{
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if (array_key_exists($param, $route->attributes))
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{
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$params[$param] = $route->attributes[$param];
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}
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}
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}
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$logger = $this->container->getLogger('default');
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$logger->info(json_encode($params));
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return [
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'controller_name' => $controller_name,
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'action_method' => $action_method,
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'params' => $params
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];
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}
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/**
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* Get the type of route, to select the current controller
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*
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* @return string
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*/
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public function get_controller()
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{
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$route_type = $this->__get('default_list');
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$request_uri = $this->request->getUri()->getPath();
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$path = trim($request_uri, '/');
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$segments = explode('/', $path);
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$controller = reset($segments);
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if (empty($controller))
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{
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$controller = $route_type;
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}
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return $controller;
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}
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/**
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* Get the list of controllers in the default namespace
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*
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* @return array
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*/
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public function get_controller_list()
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{
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$default_namespace = AnimeClient::DEFAULT_CONTROLLER_NAMESPACE;
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$path = str_replace('\\', '/', $default_namespace);
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$path = str_replace('Aviat/AnimeClient/', '', $path);
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$path = trim($path, '/');
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$actual_path = realpath(\_dir(AnimeClient::SRC_DIR, $path));
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$class_files = glob("{$actual_path}/*.php");
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$controllers = [];
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foreach ($class_files as $file)
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{
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$raw_class_name = basename(str_replace(".php", "", $file));
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$path = strtolower(basename($raw_class_name));
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$class_name = trim($default_namespace . '\\' . $raw_class_name, '\\');
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$controllers[$path] = $class_name;
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}
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return $controllers;
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}
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/**
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* Create the controller object and call the appropriate
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* method
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*
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* @param string $controller_name - The full namespace of the controller class
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* @param string $method
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* @param array $params
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* @return void
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*/
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protected function call($controller_name, $method, array $params)
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{
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$logger = $this->container->getLogger('default');
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$controller = new $controller_name($this->container);
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// Run the appropriate controller method
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$logger->debug('Dispatcher - controller arguments');
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$logger->debug(print_r($params, TRUE));
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call_user_func_array([$controller, $method], $params);
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}
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/**
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* Get the appropriate params for the error page
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* pased on the failed route
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*
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* @return array|false
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*/
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protected function get_error_params()
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{
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$logger = $this->container->getLogger('default');
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$failure = $this->matcher->getFailedRoute();
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$logger->info('Dispatcher - failed route');
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$logger->info(print_r($failure, TRUE));
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$action_method = AnimeClient::ERROR_MESSAGE_METHOD;
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$params = [];
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switch($failure->failedRule) {
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case 'Aura\Router\Rule\Allows':
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$params = [
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'http_code' => 405,
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'title' => '405 Method Not Allowed',
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'message' => 'Invalid HTTP Verb'
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];
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break;
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case 'Aura\Router\Rule\Accepts':
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$params = [
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'http_code' => 406,
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'title' => '406 Not Acceptable',
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'message' => 'Unacceptable content type'
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];
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break;
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default:
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// Fall back to a 404 message
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$action_method = AnimeClient::NOT_FOUND_METHOD;
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break;
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}
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return [
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'params' => $params,
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'action_method' => $action_method
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];
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}
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/**
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* Select controller based on the current url, and apply its relevent routes
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*
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* @return array
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*/
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protected function _setup_routes()
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{
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$route_type = $this->get_controller();
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// Add routes
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$routes = [];
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foreach ($this->routes as $name => &$route)
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{
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$path = $route['path'];
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unset($route['path']);
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$controller_map = $this->get_controller_list();
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$controller_class = (array_key_exists($route_type, $controller_map))
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? $controller_map[$route_type]
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: AnimeClient::DEFAULT_CONTROLLER;
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if (array_key_exists($route_type, $controller_map))
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{
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$controller_class = $controller_map[$route_type];
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}
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// Prepend the controller to the route parameters
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$route['controller'] = $controller_class;
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// Select the appropriate router method based on the http verb
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$add = (array_key_exists('verb', $route))
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? strtolower($route['verb'])
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: "get";
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// Add the route to the router object
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if ( ! array_key_exists('tokens', $route))
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{
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$routes[] = $this->router->$add($name, $path)->defaults($route);
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}
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else
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{
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$tokens = $route['tokens'];
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unset($route['tokens']);
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$routes[] = $this->router->$add($name, $path)
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->defaults($route)
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->tokens($tokens);
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}
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}
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return $routes;
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}
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}
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// End of Dispatcher.php
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