ParamFetcher::resolveConstraints() - Code Metrics - Inspection of "Merge pull request #1240 from Ener-Getick/PARAM" - FriendsOfSymfony/FOSRestBundle - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 93ef1f...d80a95 )

by Christophe

created 2015-12-04 19:07 UTC

ParamFetcher::resolveConstraints() A

↳ Parent: ParamFetcher

Complexity

Conditions	3
Paths	3

Size

Total Lines	8
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	4
CRAP Score	3

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
c	1
b	0
f	0
dl	0
loc	8
ccs	4
cts	4
cp	1
rs	9.4286
cc	3
eloc	4
nc	3
nop	1
crap	3

<?php

/*
 * This file is part of the FOSRestBundle package.
 *
 * (c) FriendsOfSymfony <http://friendsofsymfony.github.com/>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace FOS\RestBundle\Request;

use Doctrine\Common\Util\ClassUtils;
use FOS\RestBundle\Controller\Annotations\ParamInterface;
use FOS\RestBundle\Util\ResolverTrait;
use FOS\RestBundle\Validator\Constraints\ResolvableConstraintInterface;
use FOS\RestBundle\Validator\ViolationFormatterInterface;
use Symfony\Component\DependencyInjection\ContainerAwareInterface;
use Symfony\Component\DependencyInjection\ContainerAwareTrait;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\RequestStack;
use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintViolationList;
use Symfony\Component\Validator\Validator\ValidatorInterface;
use Symfony\Component\Validator\Exception\ValidatorException;
use Symfony\Component\Validator\ConstraintViolation;

/**
 * Helper to validate parameters of the active request.
 *
 * @author Alexander <[email protected]>
 * @author Lukas Kahwe Smith <[email protected]>
 * @author Jordi Boggiano <[email protected]>
 * @author Boris Guéry <[email protected]>
 */
class ParamFetcher implements ParamFetcherInterface, ContainerAwareInterface
{
    use ResolverTrait, ContainerAwareTrait;

    private $paramReader;
    private $requestStack;
    private $params;
    private $validator;
    private $violationFormatter;

    /**
     * @var callable
     */
    private $controller;

    /**
     * Initializes fetcher.
     *
     * @param ParamReaderInterface        $paramReader
     * @param RequestStack                $requestStack
     * @param ValidatorInterface          $validator
     * @param ViolationFormatterInterface $violationFormatter
     */
    public function __construct(ParamReaderInterface $paramReader, RequestStack $requestStack, ViolationFormatterInterface $violationFormatter, ValidatorInterface $validator = null)
    {
        $this->paramReader = $paramReader;
        $this->requestStack = $requestStack;
        $this->violationFormatter = $violationFormatter;
        $this->validator = $validator;
    }

    /**
     * {@inheritdoc}
     */
    public function setController($controller)
    {
        $this->controller = $controller;
    }

    /**
     * Add additional params to the ParamFetcher during runtime.
     *
     * Note that adding a param that has the same name as an existing param will override that param.
     *
     * @param ParamInterface $param
     */
    public function addParam(ParamInterface $param)
    {
        $this->getParams(); // init params
        $this->params[$param->getName()] = $param;
    }

    /**
     * @return ParamInterface[]
     */
    public function getParams()
    {
        if (null === $this->params) {
            $this->initParams();
        }

        return $this->params;
    }

    /**
     * {@inheritdoc}
     */
    public function get($name, $strict = null)
    {
        $params = $this->getParams();

        if (!array_key_exists($name, $params)) {
            throw new \InvalidArgumentException(sprintf("No @ParamInterface configuration for parameter '%s'.", $name));
        }

        /** @var ParamInterface $param */
        $param = $params[$name];
        $default = $param->getDefault();
        $strict = (null !== $strict ? $strict : $param->isStrict());

        $paramValue = $param->getValue($this->getRequest(), $default);

        return $this->cleanParamWithRequirements($param, $paramValue, $strict);
    }

    /**
     * @param ParamInterface $param
     * @param mixed          $paramValue
     * @param bool           $strict
     *
     * @throws BadRequestHttpException
     * @throws \RuntimeException
     *
     * @return mixed
     */
    protected function cleanParamWithRequirements(ParamInterface $param, $paramValue, $strict)
    {
        if (empty($this->container)) {
            throw new \InvalidArgumentException(
                'The ParamFetcher has been not initialized correctly. '.
                'The container for parameter resolution is missing.'
            );
        }

        $default = $param->getDefault();
        $default = $this->resolveValue($this->container, $default);

        $this->checkNotIncompatibleParams($param);
        if ($default !== null && $default === $paramValue) {
            return $paramValue;
        }

        $constraints = $param->getConstraints();
        $this->resolveConstraints($constraints);
        if (empty($constraints)) {
            return $paramValue;
        }
        if (null === $this->validator) {
            throw new \RuntimeException(
                'The ParamFetcher requirements feature requires the symfony/validator component.'
            );
        }

        try {
            $errors = $this->validator->validate($paramValue, $constraints);
        } catch (ValidatorException $e) {
            $violation = new ConstraintViolation(
                $e->getMessage(),
                $e->getMessage(),
                array(),
                $paramValue,
                '',
                null,
                null,
                $e->getCode()
            );
            $errors = new ConstraintViolationList(array($violation));
        }

        if (0 < count($errors)) {
            if ($strict) {
                throw new BadRequestHttpException(
                    $this->violationFormatter->formatList($param, $errors)
                );
            }

            return null === $default ? '' : $default;
        }

        return $paramValue;
    }

    /**
     * {@inheritdoc}
     */
    public function all($strict = null)
    {
        $configuredParams = $this->getParams();

        $params = [];
        foreach ($configuredParams as $name => $param) {
            $params[$name] = $this->get($name, $strict);
        }

        return $params;
    }

    /**
     * Initialize the parameters.
     *
     * @throws \InvalidArgumentException
     */
    private function initParams()
    {
        if (empty($this->controller)) {
            throw new \InvalidArgumentException('Controller and method needs to be set via setController');
        }

        if (!is_array($this->controller) || empty($this->controller[0]) || empty($this->controller[1])) {
            throw new \InvalidArgumentException(
                'Controller needs to be set as a class instance (closures/functions are not supported)'
            );
        }

        // the controller could be a proxy, e.g. when using the JMSSecuriyExtraBundle or JMSDiExtraBundle
        $className = ClassUtils::getClass($this->controller[0]);

        $this->params = $this->paramReader->read(
            new \ReflectionClass($className),
            $this->controller[1]
        );
    }

    /**
     * Check if current param is not in conflict with other parameters
     * according to the "incompatibles" field.
     *
     * @param ParamInterface $param the configuration for the param fetcher
     *
     * @throws InvalidArgumentException
     * @throws BadRequestHttpException
     */
    protected function checkNotIncompatibleParams(ParamInterface $param)
    {
        $params = $this->getParams();
        foreach ($param->getIncompatibilities() as $incompatibleParamName) {
            if (!array_key_exists($incompatibleParamName, $params)) {
                throw new \InvalidArgumentException(sprintf("No @ParamInterface configuration for parameter '%s'.", $incompatibleParamName));
            }
            $incompatibleParam = $params[$incompatibleParamName];

            if ($incompatibleParam->getValue($this->getRequest(), null) !== null) {
                $exceptionMessage = sprintf(
                    "'%s' param is incompatible with %s param.",
                    $param->getName(),
                    $incompatibleParam->getName()
                );

                throw new BadRequestHttpException($exceptionMessage);
            }
        }
    }

    /**
     * @param Constraint[] $constraints
     */
    private function resolveConstraints(array $constraints)
    {
        foreach ($constraints as $constraint) {
            if ($constraint instanceof ResolvableConstraintInterface) {
                $constraint->resolve($this->container);
            }
        }
    }

    /**
     * @throws \RuntimeException
     *
     * @return Request
     */
    private function getRequest()

    {
        $request = $this->requestStack->getCurrentRequest();
        if ($request === null) {
            throw new \RuntimeException('There is no current request.');
        }

        return $request;
    }
}


1			<?php
2
3			/*
4			* This file is part of the FOSRestBundle package.
5			*
6			* (c) FriendsOfSymfony <http://friendsofsymfony.github.com/>
7			*
8			* For the full copyright and license information, please view the LICENSE
9			* file that was distributed with this source code.
10			*/
11
12			namespace FOS\RestBundle\Request;
13
14			use Doctrine\Common\Util\ClassUtils;
15			use FOS\RestBundle\Controller\Annotations\ParamInterface;
16			use FOS\RestBundle\Util\ResolverTrait;
17			use FOS\RestBundle\Validator\Constraints\ResolvableConstraintInterface;
18			use FOS\RestBundle\Validator\ViolationFormatterInterface;
19			use Symfony\Component\DependencyInjection\ContainerAwareInterface;
20			use Symfony\Component\DependencyInjection\ContainerAwareTrait;
21			use Symfony\Component\HttpFoundation\Request;
22			use Symfony\Component\HttpFoundation\RequestStack;
23			use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;
24			use Symfony\Component\Validator\Constraint;
25			use Symfony\Component\Validator\ConstraintViolationList;
26			use Symfony\Component\Validator\Validator\ValidatorInterface;
27			use Symfony\Component\Validator\Exception\ValidatorException;
28			use Symfony\Component\Validator\ConstraintViolation;
29
30			/**
31			* Helper to validate parameters of the active request.
32			*
33			* @author Alexander <[email protected]>
34			* @author Lukas Kahwe Smith <[email protected]>
35			* @author Jordi Boggiano <[email protected]>
36			* @author Boris Guéry <[email protected]>
37			*/
38			class ParamFetcher implements ParamFetcherInterface, ContainerAwareInterface
39			{
40			use ResolverTrait, ContainerAwareTrait;
41
42			private $paramReader;
43			private $requestStack;
44			private $params;
45			private $validator;
46			private $violationFormatter;
47
48			/**
49			* @var callable
50			*/
51			private $controller;
52
53			/**
54			* Initializes fetcher.
55			*
56			* @param ParamReaderInterface $paramReader
57			* @param RequestStack $requestStack
58	22		* @param ValidatorInterface $validator
59			* @param ViolationFormatterInterface $violationFormatter
60	22		*/
61	22		public function __construct(ParamReaderInterface $paramReader, RequestStack $requestStack, ViolationFormatterInterface $violationFormatter, ValidatorInterface $validator = null)
62	22		{
63	22		$this->paramReader = $paramReader;
64	22		$this->requestStack = $requestStack;
65			$this->violationFormatter = $violationFormatter;
66			$this->validator = $validator;
67			}
68
69	10		/**
70			* {@inheritdoc}
71	10		*/
72	10		public function setController($controller)
73			{
74			$this->controller = $controller;
75			}
76
77			/**
78			* Add additional params to the ParamFetcher during runtime.
79			*
80			* Note that adding a param that has the same name as an existing param will override that param.
81	1		*
82			* @param ParamInterface $param
83	1		*/
84	1		public function addParam(ParamInterface $param)
85	1		{
86			$this->getParams(); // init params
87			$this->params[$param->getName()] = $param;
88			}
89
90	5		/**
91			* @return ParamInterface[]
92	5		*/
93	5		public function getParams()
94	5		{
95			if (null === $this->params) {
96	5		$this->initParams();
97			}
98
99			return $this->params;
100			}
101
102	5		/**
103			* {@inheritdoc}
104	5		*/
105			public function get($name, $strict = null)
106	5		{
107	1		$params = $this->getParams();
108
109			if (!array_key_exists($name, $params)) {
110			throw new \InvalidArgumentException(sprintf("No @ParamInterface configuration for parameter '%s'.", $name));
111	4		}
112	4
113	4		/** @var ParamInterface $param */
114			$param = $params[$name];
115	4		$default = $param->getDefault();
116			$strict = (null !== $strict ? $strict : $param->isStrict());
117	4
118			$paramValue = $param->getValue($this->getRequest(), $default);
119
120			return $this->cleanParamWithRequirements($param, $paramValue, $strict);
121			}
122
123			/**
124			* @param ParamInterface $param
125			* @param mixed $paramValue
126			* @param bool $strict
127			*
128			* @throws BadRequestHttpException
129			* @throws \RuntimeException
130	9		*
131			* @return mixed
132	9		*/
133			protected function cleanParamWithRequirements(ParamInterface $param, $paramValue, $strict)
134	9		{
135	9		if (empty($this->container)) {
136	2		throw new \InvalidArgumentException(
137			'The ParamFetcher has been not initialized correctly. '.
138			'The container for parameter resolution is missing.'
139	7		);
140	7		}
141	1
142			$default = $param->getDefault();
143	6		$default = $this->resolveValue($this->container, $default);
144	1
145			$this->checkNotIncompatibleParams($param);
146	1		if ($default !== null && $default === $paramValue) {
147			return $paramValue;
148			}
149
150	5		$constraints = $param->getConstraints();
151	5		$this->resolveConstraints($constraints);
152			if (empty($constraints)) {
153			return $paramValue;
154			}
155			if (null === $this->validator) {
156			throw new \RuntimeException(
157			'The ParamFetcher requirements feature requires the symfony/validator component.'
158			);
159			}
160
161			try {
162			$errors = $this->validator->validate($paramValue, $constraints);
163			} catch (ValidatorException $e) {
164			$violation = new ConstraintViolation(
165	5		$e->getMessage(),
166	4		$e->getMessage(),
167	1		array(),
168	1		$paramValue,
169	1		'',
170			null,
171			null,
172	3		$e->getCode()
173			);
174			$errors = new ConstraintViolationList(array($violation));
175	3		}
176
177			if (0 < count($errors)) {
178			if ($strict) {
179			throw new BadRequestHttpException(
180			$this->violationFormatter->formatList($param, $errors)
181	4		);
182			}
183	4
184			return null === $default ? '' : $default;
185	4		}
186	4
187	4		return $paramValue;
188	4		}
189
190	4		/**
191			* {@inheritdoc}
192			*/
193			public function all($strict = null)
194			{
195			$configuredParams = $this->getParams();
196
197			$params = [];
198	9		foreach ($configuredParams as $name => $param) {
199			$params[$name] = $this->get($name, $strict);
200	9		}
201	1
202			return $params;
203			}
204	8
205	3		/**
206			* Initialize the parameters.
207	3		*
208			* @throws \InvalidArgumentException
209			*/
210			private function initParams()
211	5		{
212			if (empty($this->controller)) {
213	5		throw new \InvalidArgumentException('Controller and method needs to be set via setController');
214	5		}
215	5
216	5		if (!is_array($this->controller) \|\| empty($this->controller[0]) \|\| empty($this->controller[1])) {
217	5		throw new \InvalidArgumentException(
218			'Controller needs to be set as a class instance (closures/functions are not supported)'
219	5		);
220	5		}
221
222			// the controller could be a proxy, e.g. when using the JMSSecuriyExtraBundle or JMSDiExtraBundle
223			$className = ClassUtils::getClass($this->controller[0]);
224
225			$this->params = $this->paramReader->read(
226			new \ReflectionClass($className),
227			$this->controller[1]
228			);
229			}
230
231	5		/**
232			* Check if current param is not in conflict with other parameters
233	5		* according to the "incompatibles" field.
234	5		*
235	2		* @param ParamInterface $param the configuration for the param fetcher
236	1		*
237			* @throws InvalidArgumentException
238	1		* @throws BadRequestHttpException
239			*/
240	1		protected function checkNotIncompatibleParams(ParamInterface $param)
241	1		{
242	1		$params = $this->getParams();
243	1		foreach ($param->getIncompatibilities() as $incompatibleParamName) {
244	1		if (!array_key_exists($incompatibleParamName, $params)) {
245	1		throw new \InvalidArgumentException(sprintf("No @ParamInterface configuration for parameter '%s'.", $incompatibleParamName));
246			}
247	1		$incompatibleParam = $params[$incompatibleParamName];
248
249	4		if ($incompatibleParam->getValue($this->getRequest(), null) !== null) {
250	3		$exceptionMessage = sprintf(
251			"'%s' param is incompatible with %s param.",
252			$param->getName(),
253			$incompatibleParam->getName()
254			);
255	5
256			throw new BadRequestHttpException($exceptionMessage);
257	5		}
258	5		}
259	4		}
260
261			/**
262			* @param Constraint[] $constraints
263			*/
264			private function resolveConstraints(array $constraints)
265	4		{
266	4		foreach ($constraints as $constraint) {
267	5		if ($constraint instanceof ResolvableConstraintInterface) {
268	5		$constraint->resolve($this->container);
269			}
270			}
271			}
272
273			/**
274			* @throws \RuntimeException
275	5		*
276			* @return Request
277	5		*/
278	5	View Code Duplication	private function getRequest()
			0 ignored issues – show Duplication introduced 2015-11-21 09:45 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
279			{
280			$request = $this->requestStack->getCurrentRequest();
281			if ($request === null) {
282	5		throw new \RuntimeException('There is no current request.');
283			}
284
285			return $request;
286			}
287			}
288

FriendsOfSymfony / FOSRestBundle

Push — master ( 93ef1f...d80a95 )

ParamFetcher::resolveConstraints() A

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