CacheManager::remove() - Code Metrics - Inspection of "Merge pull request #732 from Haehnchen/patch/event..." - liip/LiipImagineBundle - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 0a7932...aee286 )

by Maksim

created 2016-05-05 11:15 UTC

CacheManager::remove() C

↳ Parent: CacheManager

Complexity

Conditions	7
Paths	48

Size

Total Lines	30
Code Lines	17

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
c	1
b	0
f	0
dl	0
loc	30
rs	6.7272
cc	7
eloc	17
nc	48
nop	2

<?php

namespace Liip\ImagineBundle\Imagine\Cache;

use Liip\ImagineBundle\Binary\BinaryInterface;
use Liip\ImagineBundle\Imagine\Cache\Resolver\ResolverInterface;
use Liip\ImagineBundle\Imagine\Filter\FilterConfiguration;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
use Symfony\Component\Routing\RouterInterface;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Liip\ImagineBundle\ImagineEvents;
use Liip\ImagineBundle\Events\CacheResolveEvent;

class CacheManager
{
    /**
     * @var FilterConfiguration
     */
    protected $filterConfig;

    /**
     * @var RouterInterface
     */
    protected $router;

    /**
     * @var ResolverInterface[]
     */
    protected $resolvers = array();

    /**
     * @var SignerInterface
     */
    protected $signer;

    /**
     * @var \Symfony\Component\EventDispatcher\EventDispatcherInterface
     */
    protected $dispatcher;

    /**
     * @var string
     */
    protected $defaultResolver;

    /**
     * Constructs the cache manager to handle Resolvers based on the provided FilterConfiguration.
     *
     * @param FilterConfiguration      $filterConfig
     * @param RouterInterface          $router
     * @param SignerInterface          $signer
     * @param EventDispatcherInterface $dispatcher
     * @param string                   $defaultResolver
     */
    public function __construct(
        FilterConfiguration $filterConfig,
        RouterInterface $router,
        SignerInterface $signer,
        EventDispatcherInterface $dispatcher,
        $defaultResolver = null
    ) {
        $this->filterConfig = $filterConfig;
        $this->router = $router;
        $this->signer = $signer;
        $this->dispatcher = $dispatcher;
        $this->defaultResolver = $defaultResolver ?: 'default';
    }

    /**
     * Adds a resolver to handle cached images for the given filter.
     *
     * @param string            $filter
     * @param ResolverInterface $resolver
     */
    public function addResolver($filter, ResolverInterface $resolver)
    {
        $this->resolvers[$filter] = $resolver;

        if ($resolver instanceof CacheManagerAwareInterface) {
            $resolver->setCacheManager($this);
        }
    }

    /**
     * Gets a resolver for the given filter.
     *
     * In case there is no specific resolver, but a default resolver has been configured, the default will be returned.
     *
     * @param string $filter
     * @param string $resolver
     *
     * @return ResolverInterface
     *
     * @throws \OutOfBoundsException If neither a specific nor a default resolver is available.
     */
    protected function getResolver($filter, $resolver)
    {
        // BC
        if (false == $resolver) {

            $config = $this->filterConfig->get($filter);

            $resolverName = empty($config['cache']) ? $this->defaultResolver : $config['cache'];
        } else {
            $resolverName = $resolver;
        }

        if (!isset($this->resolvers[$resolverName])) {
            throw new \OutOfBoundsException(sprintf(
                'Could not find resolver "%s" for "%s" filter type',
                $resolverName,
                $filter
            ));
        }

        return $this->resolvers[$resolverName];
    }

    /**
     * Gets filtered path for rendering in the browser.
     * It could be the cached one or an url of filter action.
     *
     * @param string $path          The path where the resolved file is expected.
     * @param string $filter
     * @param array  $runtimeConfig
     * @param string $resolver
     *
     * @return string
     */
    public function getBrowserPath($path, $filter, array $runtimeConfig = array(), $resolver = null)
    {
        if (!empty($runtimeConfig)) {
            $rcPath = $this->getRuntimePath($path, $runtimeConfig);

            return $this->isStored($rcPath, $filter, $resolver) ?
                $this->resolve($rcPath, $filter, $resolver) :
                $this->generateUrl($path, $filter, $runtimeConfig, $resolver)
            ;
        }

        return $this->isStored($path, $filter, $resolver) ?
            $this->resolve($path, $filter, $resolver) :
            $this->generateUrl($path, $filter, array(), $resolver)
        ;
    }

    /**
     * Get path to runtime config image.
     *
     * @param string $path
     * @param array  $runtimeConfig
     *
     * @return string
     */
    public function getRuntimePath($path, array $runtimeConfig)
    {
        return 'rc/'.$this->signer->sign($path, $runtimeConfig).'/'.$path;
    }

    /**
     * Returns a web accessible URL.
     *
     * @param string $path          The path where the resolved file is expected.
     * @param string $filter        The name of the imagine filter in effect.
     * @param array  $runtimeConfig
     * @param string $resolver
     *
     * @return string
     */
    public function generateUrl($path, $filter, array $runtimeConfig = array(), $resolver = null)
    {
        $params = array(
            'path' => ltrim($path, '/'),
            'filter' => $filter,
        );

        if ($resolver) {
''   == false // true
''   == null  // true
'ab' == false // false
'ab' == null  // false

// It is often better to use strict comparison
'' === false // false
'' === null  // false
            $params['resolver'] = $resolver;
        }

        if (empty($runtimeConfig)) {
            $filterUrl = $this->router->generate('liip_imagine_filter', $params, UrlGeneratorInterface::ABSOLUTE_URL);
        } else {
            $params['filters'] = $runtimeConfig;
            $params['hash'] = $this->signer->sign($path, $runtimeConfig);

            $filterUrl = $this->router->generate('liip_imagine_filter_runtime', $params, UrlGeneratorInterface::ABSOLUTE_URL);
        }

        return $filterUrl;
    }

    /**
     * Checks whether the path is already stored within the respective Resolver.
     *
     * @param string $path
     * @param string $filter
     * @param string $resolver
     *
     * @return bool
     */
    public function isStored($path, $filter, $resolver = null)
    {
        return $this->getResolver($filter, $resolver)->isStored($path, $filter);
    }

    /**
     * Resolves filtered path for rendering in the browser.
     *
     * @param string $path
     * @param string $filter
     * @param string $resolver
     *
     * @return string The url of resolved image.
     *
     * @throws NotFoundHttpException if the path can not be resolved
     */
    public function resolve($path, $filter, $resolver = null)
    {
        if (false !== strpos($path, '/../') || 0 === strpos($path, '../')) {
            throw new NotFoundHttpException(sprintf("Source image was searched with '%s' outside of the defined root path", $path));
        }

        $preEvent = new CacheResolveEvent($path, $filter);
        $this->dispatcher->dispatch(ImagineEvents::PRE_RESOLVE, $preEvent);

        $url = $this->getResolver($preEvent->getFilter(), $resolver)->resolve($preEvent->getPath(), $preEvent->getFilter());

        $postEvent = new CacheResolveEvent($preEvent->getPath(), $preEvent->getFilter(), $url);
        $this->dispatcher->dispatch(ImagineEvents::POST_RESOLVE, $postEvent);

        return $postEvent->getUrl();
    }

    /**
     * @see ResolverInterface::store
     *
     * @param BinaryInterface $binary
     * @param string          $path
     * @param string          $filter
     * @param string          $resolver
     */
    public function store(BinaryInterface $binary, $path, $filter, $resolver = null)
    {
        $this->getResolver($filter, $resolver)->store($binary, $path, $filter);
    }

    /**
     * @param string|string[]|null $paths
     * @param string|string[]|null $filters
     */
    public function remove($paths = null, $filters = null)
    {
        if (null === $filters) {
            $filters = array_keys($this->filterConfig->all());
        }
        if (!is_array($filters)) {
            $filters = array($filters);
        }
        if (!is_array($paths)) {
            $paths = array($paths);
        }

        $paths = array_filter($paths);
        $filters = array_filter($filters);

        $mapping = new \SplObjectStorage();
        foreach ($filters as $filter) {
            $resolver = $this->getResolver($filter, null);

            $list = isset($mapping[$resolver]) ? $mapping[$resolver] : array();

            $list[] = $filter;

            $mapping[$resolver] = $list;
        }

        foreach ($mapping as $resolver) {
            $resolver->remove($paths, $mapping[$resolver]);
        }
    }
}


1			<?php
2
3			namespace Liip\ImagineBundle\Imagine\Cache;
4
5			use Liip\ImagineBundle\Binary\BinaryInterface;
6			use Liip\ImagineBundle\Imagine\Cache\Resolver\ResolverInterface;
7			use Liip\ImagineBundle\Imagine\Filter\FilterConfiguration;
8			use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
9			use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
10			use Symfony\Component\Routing\RouterInterface;
11			use Symfony\Component\EventDispatcher\EventDispatcherInterface;
12			use Liip\ImagineBundle\ImagineEvents;
13			use Liip\ImagineBundle\Events\CacheResolveEvent;
14
15			class CacheManager
16			{
17			/**
18			* @var FilterConfiguration
19			*/
20			protected $filterConfig;
21
22			/**
23			* @var RouterInterface
24			*/
25			protected $router;
26
27			/**
28			* @var ResolverInterface[]
29			*/
30			protected $resolvers = array();
31
32			/**
33			* @var SignerInterface
34			*/
35			protected $signer;
36
37			/**
38			* @var \Symfony\Component\EventDispatcher\EventDispatcherInterface
39			*/
40			protected $dispatcher;
41
42			/**
43			* @var string
44			*/
45			protected $defaultResolver;
46
47			/**
48			* Constructs the cache manager to handle Resolvers based on the provided FilterConfiguration.
49			*
50			* @param FilterConfiguration $filterConfig
51			* @param RouterInterface $router
52			* @param SignerInterface $signer
53			* @param EventDispatcherInterface $dispatcher
54			* @param string $defaultResolver
55			*/
56			public function __construct(
57			FilterConfiguration $filterConfig,
58			RouterInterface $router,
59			SignerInterface $signer,
60			EventDispatcherInterface $dispatcher,
61			$defaultResolver = null
62			) {
63			$this->filterConfig = $filterConfig;
64			$this->router = $router;
65			$this->signer = $signer;
66			$this->dispatcher = $dispatcher;
67			$this->defaultResolver = $defaultResolver ?: 'default';
68			}
69
70			/**
71			* Adds a resolver to handle cached images for the given filter.
72			*
73			* @param string $filter
74			* @param ResolverInterface $resolver
75			*/
76			public function addResolver($filter, ResolverInterface $resolver)
77			{
78			$this->resolvers[$filter] = $resolver;
79
80			if ($resolver instanceof CacheManagerAwareInterface) {
81			$resolver->setCacheManager($this);
82			}
83			}
84
85			/**
86			* Gets a resolver for the given filter.
87			*
88			* In case there is no specific resolver, but a default resolver has been configured, the default will be returned.
89			*
90			* @param string $filter
91			* @param string $resolver
92			*
93			* @return ResolverInterface
94			*
95			* @throws \OutOfBoundsException If neither a specific nor a default resolver is available.
96			*/
97			protected function getResolver($filter, $resolver)
98			{
99			// BC
100			if (false == $resolver) {
			0 ignored issues – show Bug Best Practice introduced 2015-12-25 09:44 UTC by Report Bug Copy Issue Report It seems like you are loosely comparing `$resolver` of type `string` to the boolean `false`. If you are specifically checking for an empty string, consider using the more explicit `=== ''` instead. Loading history...
101			$config = $this->filterConfig->get($filter);
102
103			$resolverName = empty($config['cache']) ? $this->defaultResolver : $config['cache'];
104			} else {
105			$resolverName = $resolver;
106			}
107
108			if (!isset($this->resolvers[$resolverName])) {
109			throw new \OutOfBoundsException(sprintf(
110			'Could not find resolver "%s" for "%s" filter type',
111			$resolverName,
112			$filter
113			));
114			}
115
116			return $this->resolvers[$resolverName];
117			}
118
119			/**
120			* Gets filtered path for rendering in the browser.
121			* It could be the cached one or an url of filter action.
122			*
123			* @param string $path The path where the resolved file is expected.
124			* @param string $filter
125			* @param array $runtimeConfig
126			* @param string $resolver
127			*
128			* @return string
129			*/
130			public function getBrowserPath($path, $filter, array $runtimeConfig = array(), $resolver = null)
131			{
132			if (!empty($runtimeConfig)) {
133			$rcPath = $this->getRuntimePath($path, $runtimeConfig);
134
135			return $this->isStored($rcPath, $filter, $resolver) ?
136			$this->resolve($rcPath, $filter, $resolver) :
137			$this->generateUrl($path, $filter, $runtimeConfig, $resolver)
138			;
139			}
140
141			return $this->isStored($path, $filter, $resolver) ?
142			$this->resolve($path, $filter, $resolver) :
143			$this->generateUrl($path, $filter, array(), $resolver)
144			;
145			}
146
147			/**
148			* Get path to runtime config image.
149			*
150			* @param string $path
151			* @param array $runtimeConfig
152			*
153			* @return string
154			*/
155			public function getRuntimePath($path, array $runtimeConfig)
156			{
157			return 'rc/'.$this->signer->sign($path, $runtimeConfig).'/'.$path;
158			}
159
160			/**
161			* Returns a web accessible URL.
162			*
163			* @param string $path The path where the resolved file is expected.
164			* @param string $filter The name of the imagine filter in effect.
165			* @param array $runtimeConfig
166			* @param string $resolver
167			*
168			* @return string
169			*/
170			public function generateUrl($path, $filter, array $runtimeConfig = array(), $resolver = null)
171			{
172			$params = array(
173			'path' => ltrim($path, '/'),
174			'filter' => $filter,
175			);
176
177			if ($resolver) {
			0 ignored issues – show Bug Best Practice introduced 2015-12-25 09:44 UTC by Report Bug Copy Issue Report The expression `$resolver` of type `string\|null` is loosely compared to `true`; this is ambiguous if the string can be empty. You might want to explicitly use `!== null` instead. In PHP, under loose comparison (like `==`, or `!=`, or `switch` conditions), values of different types might be equal. For `string` values, the empty string `''` is a special case, in particular the following results might be unexpected: '' == false // true '' == null // true 'ab' == false // false 'ab' == null // false // It is often better to use strict comparison '' === false // false '' === null // false Loading history...
178			$params['resolver'] = $resolver;
179			}
180
181			if (empty($runtimeConfig)) {
182			$filterUrl = $this->router->generate('liip_imagine_filter', $params, UrlGeneratorInterface::ABSOLUTE_URL);
183			} else {
184			$params['filters'] = $runtimeConfig;
185			$params['hash'] = $this->signer->sign($path, $runtimeConfig);
186
187			$filterUrl = $this->router->generate('liip_imagine_filter_runtime', $params, UrlGeneratorInterface::ABSOLUTE_URL);
188			}
189
190			return $filterUrl;
191			}
192
193			/**
194			* Checks whether the path is already stored within the respective Resolver.
195			*
196			* @param string $path
197			* @param string $filter
198			* @param string $resolver
199			*
200			* @return bool
201			*/
202			public function isStored($path, $filter, $resolver = null)
203			{
204			return $this->getResolver($filter, $resolver)->isStored($path, $filter);
205			}
206
207			/**
208			* Resolves filtered path for rendering in the browser.
209			*
210			* @param string $path
211			* @param string $filter
212			* @param string $resolver
213			*
214			* @return string The url of resolved image.
215			*
216			* @throws NotFoundHttpException if the path can not be resolved
217			*/
218			public function resolve($path, $filter, $resolver = null)
219			{
220			if (false !== strpos($path, '/../') \|\| 0 === strpos($path, '../')) {
221			throw new NotFoundHttpException(sprintf("Source image was searched with '%s' outside of the defined root path", $path));
222			}
223
224			$preEvent = new CacheResolveEvent($path, $filter);
225			$this->dispatcher->dispatch(ImagineEvents::PRE_RESOLVE, $preEvent);
226
227			$url = $this->getResolver($preEvent->getFilter(), $resolver)->resolve($preEvent->getPath(), $preEvent->getFilter());
228
229			$postEvent = new CacheResolveEvent($preEvent->getPath(), $preEvent->getFilter(), $url);
230			$this->dispatcher->dispatch(ImagineEvents::POST_RESOLVE, $postEvent);
231
232			return $postEvent->getUrl();
233			}
234
235			/**
236			* @see ResolverInterface::store
237			*
238			* @param BinaryInterface $binary
239			* @param string $path
240			* @param string $filter
241			* @param string $resolver
242			*/
243			public function store(BinaryInterface $binary, $path, $filter, $resolver = null)
244			{
245			$this->getResolver($filter, $resolver)->store($binary, $path, $filter);
246			}
247
248			/**
249			* @param string\|string[]\|null $paths
250			* @param string\|string[]\|null $filters
251			*/
252			public function remove($paths = null, $filters = null)
253			{
254			if (null === $filters) {
255			$filters = array_keys($this->filterConfig->all());
256			}
257			if (!is_array($filters)) {
258			$filters = array($filters);
259			}
260			if (!is_array($paths)) {
261			$paths = array($paths);
262			}
263
264			$paths = array_filter($paths);
265			$filters = array_filter($filters);
266
267			$mapping = new \SplObjectStorage();
268			foreach ($filters as $filter) {
269			$resolver = $this->getResolver($filter, null);
270
271			$list = isset($mapping[$resolver]) ? $mapping[$resolver] : array();
272
273			$list[] = $filter;
274
275			$mapping[$resolver] = $list;
276			}
277
278			foreach ($mapping as $resolver) {
279			$resolver->remove($paths, $mapping[$resolver]);
280			}
281			}
282			}
283

liip / LiipImagineBundle

Push — master ( 0a7932...aee286 )

CacheManager::remove() C

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