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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Bernhard Posselt <dev@bernhard-posselt.com>
* @author Bjoern Schiessle <bjoern@schiessle.org>
* @author Lukas Reschke <lukas@statuscode.ch>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Olivier Paroz <github@oparoz.com>
* @author Robin McCorkell <robin@mccorkell.me.uk>
* @author Thomas Müller <thomas.mueller@tmit.eu>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC\AppFramework\Utility;
use \OCP\AppFramework\Utility\IControllerMethodReflector;
/**
* Reads and parses annotations from doc comments
*/
class ControllerMethodReflector implements IControllerMethodReflector {
public $annotations = [];
private $types = [];
private $parameters = [];
/**
* @param object $object an object or classname
* @param string $method the method which we want to inspect
*/
public function reflect($object, $method){
$reflection = new \ReflectionMethod($object, $method);
$docs = $reflection->getDocComment();
// extract everything prefixed by @ and first letter uppercase
preg_match_all('/^\h+\*\h+@(?P<annotation>[A-Z]\w+)((?P<parameter>.*))?$/m', $docs, $matches);
foreach($matches['annotation'] as $key => $annontation) {
$annotationValue = $matches['parameter'][$key];
if(isset($annotationValue[0]) && $annotationValue[0] === '(' && $annotationValue[strlen($annotationValue) - 1] === ')') {
$cutString = substr($annotationValue, 1, -1);
$cutString = str_replace(' ', '', $cutString);
$splittedArray = explode(',', $cutString);
foreach($splittedArray as $annotationValues) {
list($key, $value) = explode('=', $annotationValues);
$this->annotations[$annontation][$key] = $value;
}
continue;
}
$this->annotations[$annontation] = [$annotationValue];
}
// extract type parameter information
preg_match_all('/@param\h+(?P<type>\w+)\h+\$(?P<var>\w+)/', $docs, $matches);
$this->types = array_combine($matches['var'], $matches['type']);
foreach ($reflection->getParameters() as $param) {
// extract type information from PHP 7 scalar types and prefer them
// over phpdoc annotations
if (method_exists($param, 'getType')) {
$type = $param->getType();
if ($type !== null) {
$this->types[$param->getName()] = (string) $type;
}
}
if($param->isOptional()) {
$default = $param->getDefaultValue();
} else {
$default = null;
}
$this->parameters[$param->name] = $default;
}
}
/**
* Inspects the PHPDoc parameters for types
* @param string $parameter the parameter whose type comments should be
* parsed
* @return string|null type in the type parameters (@param int $something)
* would return int or null if not existing
*/
public function getType($parameter) {
if(array_key_exists($parameter, $this->types)) {
return $this->types[$parameter];
} else {
return null;
}
}
/**
* @return array the arguments of the method with key => default value
*/
public function getParameters() {
return $this->parameters;
}
/**
* Check if a method contains an annotation
* @param string $name the name of the annotation
* @return bool true if the annotation is found
*/
public function hasAnnotation($name) {
return array_key_exists($name, $this->annotations);
}
/**
* Get optional annotation parameter by key
*
* @param string $name the name of the annotation
* @param string $key the string of the annotation
* @return string
*/
public function getAnnotationParameter($name, $key) {
if(isset($this->annotations[$name][$key])) {
return $this->annotations[$name][$key];
}
return '';
}
}