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<?php
/**
* Copyright (c) 2012 Bart Visscher <bartv@thisnet.nl>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace OC\Route;
use OCP\Route\IRouter;
use Symfony\Component\Routing\Matcher\UrlMatcher;
use Symfony\Component\Routing\Generator\UrlGenerator;
use Symfony\Component\Routing\RequestContext;
use Symfony\Component\Routing\RouteCollection;
class Router implements IRouter {
/**
* @var \Symfony\Component\Routing\RouteCollection[]
*/
protected $collections = array();
/**
* @var \Symfony\Component\Routing\RouteCollection
*/
protected $collection = null;
/**
* @var \Symfony\Component\Routing\RouteCollection
*/
protected $root = null;
/**
* @var \Symfony\Component\Routing\Generator\UrlGenerator
*/
protected $generator = null;
/**
* @var string[]
*/
protected $routingFiles;
/**
* @var string
*/
protected $cacheKey;
protected $loaded = false;
protected $loadedApps = array();
public function __construct() {
$baseUrl = \OC_Helper::linkTo('', 'index.php');
if (!\OC::$CLI) {
$method = $_SERVER['REQUEST_METHOD'];
} else {
$method = 'GET';
}
$host = \OC_Request::serverHost();
$schema = \OC_Request::serverProtocol();
$this->context = new RequestContext($baseUrl, $method, $host, $schema);
// TODO cache
$this->root = $this->getCollection('root');
}
/**
* Get the files to load the routes from
*
* @return string[]
*/
public function getRoutingFiles() {
if (!isset($this->routingFiles)) {
$this->routingFiles = array();
foreach (\OC_APP::getEnabledApps() as $app) {
$file = \OC_App::getAppPath($app) . '/appinfo/routes.php';
if (file_exists($file)) {
$this->routingFiles[$app] = $file;
}
}
}
return $this->routingFiles;
}
/**
* @return string
*/
public function getCacheKey() {
if (!isset($this->cacheKey)) {
$files = $this->getRoutingFiles();
$files[] = 'settings/routes.php';
$files[] = 'core/routes.php';
$files[] = 'ocs/routes.php';
$this->cacheKey = \OC\Cache::generateCacheKeyFromFiles($files);
}
return $this->cacheKey;
}
/**
* loads the api routes
* @return void
*/
public function loadRoutes($app = null) {
if ($this->loaded) {
return;
}
if (is_null($app)) {
$this->loaded = true;
$routingFiles = $this->getRoutingFiles();
} else {
if (isset($this->loadedApps[$app])) {
return;
}
$file = \OC_App::getAppPath($app) . '/appinfo/routes.php';
if (file_exists($file)) {
$routingFiles = array($app => $file);
} else {
$routingFiles = array();
}
}
foreach ($routingFiles as $app => $file) {
if (!isset($this->loadedApps[$app])) {
$this->loadedApps[$app] = true;
$this->useCollection($app);
$this->requireRouteFile($file);
$collection = $this->getCollection($app);
$collection->addPrefix('/apps/' . $app);
$this->root->addCollection($collection);
}
}
if (!isset($this->loadedApps['core'])) {
$this->loadedApps['core'] = true;
$this->useCollection('root');
require_once 'settings/routes.php';
require_once 'core/routes.php';
// include ocs routes
require_once 'ocs/routes.php';
$collection = $this->getCollection('ocs');
$collection->addPrefix('/ocs');
$this->root->addCollection($collection);
}
}
/**
* @param string $name
* @return \Symfony\Component\Routing\RouteCollection
*/
protected function getCollection($name) {
if (!isset($this->collections[$name])) {
$this->collections[$name] = new RouteCollection();
}
return $this->collections[$name];
}
/**
* Sets the collection to use for adding routes
*
* @param string $name Name of the collection to use.
* @return void
*/
public function useCollection($name) {
$this->collection = $this->getCollection($name);
}
/**
* Create a \OC\Route\Route.
*
* @param string $name Name of the route to create.
* @param string $pattern The pattern to match
* @param array $defaults An array of default parameter values
* @param array $requirements An array of requirements for parameters (regexes)
* @return \OC\Route\Route
*/
public function create($name, $pattern, array $defaults = array(), array $requirements = array()) {
$route = new Route($pattern, $defaults, $requirements);
$this->collection->add($name, $route);
return $route;
}
/**
* Find the route matching $url
*
* @param string $url The url to find
* @throws \Exception
* @return void
*/
public function match($url) {
if (substr($url, 0, 6) === '/apps/') {
// empty string / 'apps' / $app / rest of the route
list(, , $app,) = explode('/', $url, 4);
$this->loadRoutes($app);
} else if (substr($url, 0, 6) === '/core/' or substr($url, 0, 10) === '/settings/') {
$this->loadRoutes('core');
} else {
$this->loadRoutes();
}
$matcher = new UrlMatcher($this->root, $this->context);
$parameters = $matcher->match($url);
if (isset($parameters['action'])) {
$action = $parameters['action'];
if (!is_callable($action)) {
var_dump($action);
throw new \Exception('not a callable action');
}
unset($parameters['action']);
call_user_func($action, $parameters);
} elseif (isset($parameters['file'])) {
include $parameters['file'];
} else {
throw new \Exception('no action available');
}
}
/**
* Get the url generator
* @return \Symfony\Component\Routing\Generator\UrlGenerator
*
*/
public function getGenerator() {
if (null !== $this->generator) {
return $this->generator;
}
return $this->generator = new UrlGenerator($this->root, $this->context);
}
/**
* Generate url based on $name and $parameters
*
* @param string $name Name of the route to use.
* @param array $parameters Parameters for the route
* @param bool $absolute
* @return string
*/
public function generate($name, $parameters = array(), $absolute = false) {
$this->loadRoutes();
return $this->getGenerator()->generate($name, $parameters, $absolute);
}
/**
* To isolate the variable scope used inside the $file it is required in it's own method
* @param string $file
*/
private function requireRouteFile($file) {
require_once $file;
}
}
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