DriverBaseTrait - Code Metrics - Inspection of "Added:" - PHPSocialNetwork/phpfastcache - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — V6 ( 23eee8...7e10de )

by Georges

created 2016-10-16 15:20 UTC

DriverBaseTrait A

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	318
Duplicated Lines	0 %

Coupling/Cohesion

Components	2
Dependencies	3

Importance

Changes

Metric	Value
dl	0
loc	318
rs	9.3999
c	0
b	0
f	0
wmc	33
lcom	2
cbo	3

20 Methods

Rating	Name	Size	Complexity
A	setup()	11	2
A	getConfig()	4	1
A	encode()	4	1
A	decode()	4	1
A	isPHPModule()	12	3
A	isExistingDriver()	4	1
A	_getTagName()	4	1
A	driverPreWrap()	22	3
A	driverUnwrapData()	4	1
A	driverUnwrapTags()	4	1
A	driverUnwrapEdate()	4	1
A	driverUnwrapCdate()	4	1
A	driverUnwrapMdate()	4	1
A	getDriverName()	6	2
B	driverWriteTags()	71	6
A	getTagKey()	4	1
A	getTagKeys()	8	2
A	isValidOption()	8	2
A	getRequiredOptions()	4	1
A	getValidOptions()	4	1

<?php
/**
 *
 * This file is part of phpFastCache.
 *
 * @license MIT License (MIT)
 *
 * For full copyright and license information, please see the docs/CREDITS.txt file.
 *
 * @author Khoa Bui (khoaofgod)  <[email protected]> http://www.phpfastcache.com
 * @author Georges.L (Geolim4)  <[email protected]>
 *
 */
namespace phpFastCache\Core\Pool;

use phpFastCache\Exceptions\phpFastCacheDriverException;
use phpFastCache\Core\Item\ExtendedCacheItemInterface;
use phpFastCache\Util\Directory;


/**
 * Class DriverBaseTrait
 * @package phpFastCache\Cache
 */
trait DriverBaseTrait
{
    use ExtendedCacheItemPoolTrait;

    /**
     * @var array default options, this will be merge to Driver's Options
     */
    protected $config = [];

    /**
     * @var bool
     */
    protected $fallback = false;

    /**
     * @var mixed Instance of driver service
     */
    protected $instance;

    /**
     * @param $config_name
     * @param string $value
     */
    public function setup($config_name, $value = '')
    {
        /**
         * Config for class
         */
        if (is_array($config_name)) {
            $this->config = array_merge($this->config, $config_name);
        } else {
            $this->config[ $config_name ] = $value;
        }
    }

    /**
     * @return array
     */
    public function getConfig()
    {
        return $this->config;
    }

    /**
     * Encode data types such as object/array
     * for driver that does not support
     * non-scalar value
     * @param $data
     * @return string
     */
    protected function encode($data)
    {
        return serialize($data);
    }

    /**
     * Decode data types such as object/array
     * for driver that does not support
     * non-scalar value
     * @param $value
     * @return mixed
     */
    protected function decode($value)
    {
        return @unserialize($value);
if ( ! in_array($value, array('this-is-allowed', 'and-this-too'), true)) {
    throw new \InvalidArgumentException('This input is not allowed.');
}
    }

    /**
     * Check phpModules or CGI
     * @return bool
     */
    protected function isPHPModule()
    {
        if (PHP_SAPI === 'apache2handler') {
            return true;
        } else {
            if (strpos(PHP_SAPI, 'handler') !== false) {
                return true;
            }
        }

        return false;
    }


    /**
     * @param $class
     * @return bool
     */
    protected function isExistingDriver($class)
    {
        return class_exists("\\phpFastCache\\Drivers\\{$class}");
    }


    /**
     * @param $tag
     * @return string
     */
    protected function _getTagName($tag)
    {
        return "__tag__" . $tag;
    }

    /**
     * @param \phpFastCache\Core\Item\ExtendedCacheItemInterface $item
     * @return array
     */
    public function driverPreWrap(ExtendedCacheItemInterface $item)
    {
        $wrap = [
          self::DRIVER_DATA_WRAPPER_INDEX => $item->get(),
          self::DRIVER_TAGS_WRAPPER_INDEX => $item->getTags(),
          self::DRIVER_EDATE_WRAPPER_INDEX => $item->getExpirationDate(),
        ];

        if($this->config['itemDetailedDate']){
            $wrap[ self::DRIVER_MDATE_WRAPPER_INDEX ] = new \DateTime();
            /**
             * If the creation date exists
             * reuse it else set a new Date
             */
            $wrap[ self::DRIVER_CDATE_WRAPPER_INDEX ] = $item->getCreationDate() ?: new \DateTime();
        }else{
            $wrap[ self::DRIVER_MDATE_WRAPPER_INDEX ] = null;
            $wrap[ self::DRIVER_CDATE_WRAPPER_INDEX ] = null;
        }

        return $wrap;
    }

    /**
     * @param array $wrapper
     * @return mixed
     */
    public function driverUnwrapData(array $wrapper)
    {
        return $wrapper[ self::DRIVER_DATA_WRAPPER_INDEX ];
    }

    /**
     * @param array $wrapper
     * @return mixed
     */
    public function driverUnwrapTags(array $wrapper)
    {
        return $wrapper[ self::DRIVER_TAGS_WRAPPER_INDEX ];
    }


    /**
     * @param array $wrapper
     * @return \DateTime
     */
    public function driverUnwrapEdate(array $wrapper)
    {
        return $wrapper[ self::DRIVER_EDATE_WRAPPER_INDEX ];
    }

    /**
     * @param array $wrapper
     * @return \DateTime
     */
    public function driverUnwrapCdate(array $wrapper)
    {
        return $wrapper[ self::DRIVER_CDATE_WRAPPER_INDEX ];
    }


    /**
     * @param array $wrapper
     * @return \DateTime
     */
    public function driverUnwrapMdate(array $wrapper)
    {
        return $wrapper[ self::DRIVER_MDATE_WRAPPER_INDEX ];
    }

    /**
     * @return string
     */
    public function getDriverName()
    {
        static $driverName;

        return ($driverName ?: $driverName = ucfirst(substr(strrchr((new \ReflectionObject($this))->getNamespaceName(), '\\'), 1)));
    }

    /**
     * @param \phpFastCache\Core\Item\ExtendedCacheItemInterface $item
     * @return bool
     * @throws \LogicException
     */
    public function driverWriteTags(ExtendedCacheItemInterface $item)
    {
        /**
         * Do not attempt to write tags
         * on tags item, it can leads
         * to an infinite recursive calls
         */
        if(strpos($item->getKey(), self::DRIVER_TAGS_KEY_PREFIX ) === 0){
            throw new \LogicException('Trying to set tag(s) to an Tag item index: ' . $item->getKey());
        }

        /**
         * @var $tagsItems ExtendedCacheItemInterface[]
         */
        $tagsItems = $this->getItems($this->getTagKeys($item->getTags()));

        foreach ($tagsItems as $tagsItem) {
            $data = $tagsItem->get();
            $expTimestamp = $item->getExpirationDate()->getTimestamp();

            /**
             * Using the key will
             * avoid to use array_unique
             * that has slow performances
             */

            $tagsItem->set(array_merge((array) $data, [$item->getKey() => $expTimestamp]));

            /**
             * Set the expiration date
             * of the $tagsItem based
             * on the older $item
             * expiration date
             */
            if ($expTimestamp > $tagsItem->getExpirationDate()->getTimestamp()) {
                $tagsItem->expiresAt($item->getExpirationDate());
/** @return stdClass|null */
function mayReturnNull() { }

function doesNotAcceptNull(stdClass $x) { }

// With potential error.
function withoutCheck() {
    $x = mayReturnNull();
    doesNotAcceptNull($x); // Potential error here.
}

// Safe - Alternative 1
function withCheck1() {
    $x = mayReturnNull();
    if ( ! $x instanceof stdClass) {
        throw new \LogicException('$x must be defined.');
    }
    doesNotAcceptNull($x);
}

// Safe - Alternative 2
function withCheck2() {
    $x = mayReturnNull();
    if ($x instanceof stdClass) {
        doesNotAcceptNull($x);
    }
}
            }
            $this->driverWrite($tagsItem);
            $tagsItem->setHit(true);
        }

        /**
         * Also update removed tags to
         * keep the index up to date
         */
        $tagsItems = $this->getItems($this->getTagKeys($item->getRemovedTags()));

        foreach ($tagsItems as $tagsItem) {
            $data = (array) $tagsItem->get();

            unset($data[ $item->getKey() ]);
            $tagsItem->set($data);

            /**
             * Recalculate the expiration date
             *
             * If the $tagsItem does not have
             * any cache item references left
             * then remove it from tagsItems index
             */
            if (count($data)) {
                $tagsItem->expiresAt(max($data));
                $this->driverWrite($tagsItem);
                $tagsItem->setHit(true);
            } else {
                $this->deleteItem($tagsItem);
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
            }
        }

        return true;
    }

    /**
     * @param $key
     * @return string
     */
    public function getTagKey($key)
    {
        return self::DRIVER_TAGS_KEY_PREFIX . $key;
    }

    /**
     * @param $key
     * @return string
     */
    public function getTagKeys(array $keys)
    {
        foreach ($keys as &$key) {
            $key = $this->getTagKey($key);
        }

        return $keys;
    }

    /**
     * @param string $optionName
     * @param mixed $optionValue
     * @return bool
     * @throws \InvalidArgumentException
     */
    public static function isValidOption($optionName, $optionValue)

    {
        if (!is_string($optionName)) {
            throw new \InvalidArgumentException('$optionName must be a string');
        }

        return true;
    }

    /**
     * @return array
     */
    public static function getRequiredOptions()
    {
        return [];
    }

    /**
     * @return array
     */
    public static function getValidOptions()
    {
        return [];
    }
}

Push — V6 ( 23eee8...7e10de )

DriverBaseTrait A

Complexity

Size/Duplication

Coupling/Cohesion

Importance

20 Methods

2 paths for user data to reach this point

Preventing Object Injection Attacks

General Strategies to prevent injection

1			<?php
2			/**
3			*
4			* This file is part of phpFastCache.
5			*
6			* @license MIT License (MIT)
7			*
8			* For full copyright and license information, please see the docs/CREDITS.txt file.
9			*
10			* @author Khoa Bui (khoaofgod) <[email protected]> http://www.phpfastcache.com
11			* @author Georges.L (Geolim4) <[email protected]>
12			*
13			*/
14			namespace phpFastCache\Core\Pool;
15
16			use phpFastCache\Exceptions\phpFastCacheDriverException;
17			use phpFastCache\Core\Item\ExtendedCacheItemInterface;
18			use phpFastCache\Util\Directory;
19
20
21			/**
22			* Class DriverBaseTrait
23			* @package phpFastCache\Cache
24			*/
25			trait DriverBaseTrait
26			{
27			use ExtendedCacheItemPoolTrait;
28
29			/**
30			* @var array default options, this will be merge to Driver's Options
31			*/
32			protected $config = [];
33
34			/**
35			* @var bool
36			*/
37			protected $fallback = false;
38
39			/**
40			* @var mixed Instance of driver service
41			*/
42			protected $instance;
43
44			/**
45			* @param $config_name
46			* @param string $value
47			*/
48			public function setup($config_name, $value = '')
49			{
50			/**
51			* Config for class
52			*/
53			if (is_array($config_name)) {
54			$this->config = array_merge($this->config, $config_name);
55			} else {
56			$this->config[ $config_name ] = $value;
57			}
58			}
59
60			/**
61			* @return array
62			*/
63			public function getConfig()
64			{
65			return $this->config;
66			}
67
68			/**
69			* Encode data types such as object/array
70			* for driver that does not support
71			* non-scalar value
72			* @param $data
73			* @return string
74			*/
75			protected function encode($data)
76			{
77			return serialize($data);
78			}
79
80			/**
81			* Decode data types such as object/array
82			* for driver that does not support
83			* non-scalar value
84			* @param $value
85			* @return mixed
86			*/
87			protected function decode($value)
88			{
89			return @unserialize($value);
			0 ignored issues – show Security Object Injection introduced 2016-10-16 15:23 UTC by Report Bug Copy Issue Report `$value` can contain request data and is used in unserialized context(s) leading to a potential security vulnerability. 2 paths for user data to reach this point 1. Path: Read from `$_COOKIE,` and `$_COOKIE[$keyword]` is decoded by json_decode(), and `json_decode($_COOKIE[$keyword], true)` is passed to DriverBaseTrait::decode() in src/phpFastCache/Drivers/Cookie/Driver.php on line 104 Read from `$_COOKIE,` and `$_COOKIE[$keyword]` is decoded by json_decode(), and `json_decode($_COOKIE[$keyword], true)` is passed to DriverBaseTrait::decode() in src/phpFastCache/Drivers/Cookie/Driver.php on line 104 2. Path: Fetching key `HTTP_HOST` from `$_SERVER,` and `$_SERVER['HTTP_HOST']` is passed through str_replace(), and `str_replace(':', '_', $_SERVER['HTTP_HOST'])` is passed through strtolower(), and `strtolower(str_replace(':', '_', $_SERVER['HTTP_HOST']))` is passed through preg_replace(), and `$securityKey` is assigned in src/phpFastCache/Core/Pool/IO/IOHelperTrait.php on line 61 Fetching key `HTTP_HOST` from `$_SERVER,` and `$_SERVER['HTTP_HOST']` is passed through str_replace(), and `str_replace(':', '_', $_SERVER['HTTP_HOST'])` is passed through strtolower(), and `strtolower(str_replace(':', '_', $_SERVER['HTTP_HOST']))` is passed through preg_replace(), and `$securityKey` is assigned in src/phpFastCache/Core/Pool/IO/IOHelperTrait.php on line 61 Data is passed through trim(), and Data is passed through preg_replace() in vendor/src/phpFastCache/Core/Pool/IO/IOHelperTrait.php on line 195 `$securityKey` is assigned in src/phpFastCache/Core/Pool/IO/IOHelperTrait.php on line 71 `$full_path` is assigned in src/phpFastCache/Core/Pool/IO/IOHelperTrait.php on line 88 `$full_path` is passed through realpath() in src/phpFastCache/Core/Pool/IO/IOHelperTrait.php on line 105 IOHelperTrait::getPath() returns tainted data in src/phpFastCache/Core/Pool/IO/IOHelperTrait.php on line 134 IOHelperTrait::getFileDir() returns tainted data, and `$path` is assigned in src/phpFastCache/Core/Pool/IO/IOHelperTrait.php on line 145 IOHelperTrait::getFilePath() returns tainted data, and `$file_path` is assigned in src/phpFastCache/Drivers/Files/Driver.php on line 98 Data is passed through file_get_contents() in vendor/src/phpFastCache/Core/Pool/IO/IOHelperTrait.php on line 240 `$content` is assigned in src/phpFastCache/Drivers/Files/Driver.php on line 103 `$content` is passed to DriverBaseTrait::decode() in src/phpFastCache/Drivers/Files/Driver.php on line 105 Preventing Object Injection Attacks If you pass raw user-data to `unserialize()` for example, this can be used to create an object of any class that is available in your local filesystem. For an attacker, classes that have magic methods like `__destruct` or `__wakeup` are particularly interesting in such a case, as they can be exploited very easily. We recommend to not pass user data to such a function. In case of `unserialize`, better use `JSON` to transfer data. General Strategies to prevent injection In general, it is advisable to prevent any user-data to reach this point. This can be done by white-listing certain values: if ( ! in_array($value, array('this-is-allowed', 'and-this-too'), true)) { throw new \InvalidArgumentException('This input is not allowed.'); } For numeric data, we recommend to explicitly cast the data: $sanitized = (integer) $tainted; Loading history...
90			}
91
92			/**
93			* Check phpModules or CGI
94			* @return bool
95			*/
96			protected function isPHPModule()
97			{
98			if (PHP_SAPI === 'apache2handler') {
99			return true;
100			} else {
101			if (strpos(PHP_SAPI, 'handler') !== false) {
102			return true;
103			}
104			}
105
106			return false;
107			}
108
109
110			/**
111			* @param $class
112			* @return bool
113			*/
114			protected function isExistingDriver($class)
115			{
116			return class_exists("\\phpFastCache\\Drivers\\{$class}");
117			}
118
119
120			/**
121			* @param $tag
122			* @return string
123			*/
124			protected function _getTagName($tag)
125			{
126			return "__tag__" . $tag;
127			}
128
129			/**
130			* @param \phpFastCache\Core\Item\ExtendedCacheItemInterface $item
131			* @return array
132			*/
133			public function driverPreWrap(ExtendedCacheItemInterface $item)
134			{
135			$wrap = [
136			self::DRIVER_DATA_WRAPPER_INDEX => $item->get(),
137			self::DRIVER_TAGS_WRAPPER_INDEX => $item->getTags(),
138			self::DRIVER_EDATE_WRAPPER_INDEX => $item->getExpirationDate(),
139			];
140
141			if($this->config['itemDetailedDate']){
142			$wrap[ self::DRIVER_MDATE_WRAPPER_INDEX ] = new \DateTime();
143			/**
144			* If the creation date exists
145			* reuse it else set a new Date
146			*/
147			$wrap[ self::DRIVER_CDATE_WRAPPER_INDEX ] = $item->getCreationDate() ?: new \DateTime();
148			}else{
149			$wrap[ self::DRIVER_MDATE_WRAPPER_INDEX ] = null;
150			$wrap[ self::DRIVER_CDATE_WRAPPER_INDEX ] = null;
151			}
152
153			return $wrap;
154			}
155
156			/**
157			* @param array $wrapper
158			* @return mixed
159			*/
160			public function driverUnwrapData(array $wrapper)
161			{
162			return $wrapper[ self::DRIVER_DATA_WRAPPER_INDEX ];
163			}
164
165			/**
166			* @param array $wrapper
167			* @return mixed
168			*/
169			public function driverUnwrapTags(array $wrapper)
170			{
171			return $wrapper[ self::DRIVER_TAGS_WRAPPER_INDEX ];
172			}
173
174
175			/**
176			* @param array $wrapper
177			* @return \DateTime
178			*/
179			public function driverUnwrapEdate(array $wrapper)
180			{
181			return $wrapper[ self::DRIVER_EDATE_WRAPPER_INDEX ];
182			}
183
184			/**
185			* @param array $wrapper
186			* @return \DateTime
187			*/
188			public function driverUnwrapCdate(array $wrapper)
189			{
190			return $wrapper[ self::DRIVER_CDATE_WRAPPER_INDEX ];
191			}
192
193
194			/**
195			* @param array $wrapper
196			* @return \DateTime
197			*/
198			public function driverUnwrapMdate(array $wrapper)
199			{
200			return $wrapper[ self::DRIVER_MDATE_WRAPPER_INDEX ];
201			}
202
203			/**
204			* @return string
205			*/
206			public function getDriverName()
207			{
208			static $driverName;
209
210			return ($driverName ?: $driverName = ucfirst(substr(strrchr((new \ReflectionObject($this))->getNamespaceName(), '\\'), 1)));
211			}
212
213			/**
214			* @param \phpFastCache\Core\Item\ExtendedCacheItemInterface $item
215			* @return bool
216			* @throws \LogicException
217			*/
218			public function driverWriteTags(ExtendedCacheItemInterface $item)
219			{
220			/**
221			* Do not attempt to write tags
222			* on tags item, it can leads
223			* to an infinite recursive calls
224			*/
225			if(strpos($item->getKey(), self::DRIVER_TAGS_KEY_PREFIX ) === 0){
226			throw new \LogicException('Trying to set tag(s) to an Tag item index: ' . $item->getKey());
227			}
228
229			/**
230			* @var $tagsItems ExtendedCacheItemInterface[]
231			*/
232			$tagsItems = $this->getItems($this->getTagKeys($item->getTags()));
233
234			foreach ($tagsItems as $tagsItem) {
235			$data = $tagsItem->get();
236			$expTimestamp = $item->getExpirationDate()->getTimestamp();
237
238			/**
239			* Using the key will
240			* avoid to use array_unique
241			* that has slow performances
242			*/
243
244			$tagsItem->set(array_merge((array) $data, [$item->getKey() => $expTimestamp]));
245
246			/**
247			* Set the expiration date
248			* of the $tagsItem based
249			* on the older $item
250			* expiration date
251			*/
252			if ($expTimestamp > $tagsItem->getExpirationDate()->getTimestamp()) {
253			$tagsItem->expiresAt($item->getExpirationDate());
			0 ignored issues – show Bug introduced 2016-07-06 07:27 UTC by Report Bug Copy Issue Report It seems like `$item->getExpirationDate()` can be `null`; however, `expiresAt()` does not accept `null`, maybe add an additional type check? Unless you are absolutely sure that the expression can never be null because of other conditions, we strongly recommend to add an additional type check to your code: /** @return stdClass\|null */ function mayReturnNull() { } function doesNotAcceptNull(stdClass $x) { } // With potential error. function withoutCheck() { $x = mayReturnNull(); doesNotAcceptNull($x); // Potential error here. } // Safe - Alternative 1 function withCheck1() { $x = mayReturnNull(); if ( ! $x instanceof stdClass) { throw new \LogicException('$x must be defined.'); } doesNotAcceptNull($x); } // Safe - Alternative 2 function withCheck2() { $x = mayReturnNull(); if ($x instanceof stdClass) { doesNotAcceptNull($x); } } Loading history...
254			}
255			$this->driverWrite($tagsItem);
256			$tagsItem->setHit(true);
257			}
258
259			/**
260			* Also update removed tags to
261			* keep the index up to date
262			*/
263			$tagsItems = $this->getItems($this->getTagKeys($item->getRemovedTags()));
264
265			foreach ($tagsItems as $tagsItem) {
266			$data = (array) $tagsItem->get();
267
268			unset($data[ $item->getKey() ]);
269			$tagsItem->set($data);
270
271			/**
272			* Recalculate the expiration date
273			*
274			* If the $tagsItem does not have
275			* any cache item references left
276			* then remove it from tagsItems index
277			*/
278			if (count($data)) {
279			$tagsItem->expiresAt(max($data));
280			$this->driverWrite($tagsItem);
281			$tagsItem->setHit(true);
282			} else {
283			$this->deleteItem($tagsItem);
			0 ignored issues – show Documentation introduced 2016-07-11 21:35 UTC by Report Bug Copy Issue Report `$tagsItem` is of type `object<Psr\Cache\CacheItemInterface>`, but the function expects a `string`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
284			}
285			}
286
287			return true;
288			}
289
290			/**
291			* @param $key
292			* @return string
293			*/
294			public function getTagKey($key)
295			{
296			return self::DRIVER_TAGS_KEY_PREFIX . $key;
297			}
298
299			/**
300			* @param $key
301			* @return string
302			*/
303			public function getTagKeys(array $keys)
304			{
305			foreach ($keys as &$key) {
306			$key = $this->getTagKey($key);
307			}
308
309			return $keys;
310			}
311
312			/**
313			* @param string $optionName
314			* @param mixed $optionValue
315			* @return bool
316			* @throws \InvalidArgumentException
317			*/
318			public static function isValidOption($optionName, $optionValue)
			1 ignored issue – show Unused Code introduced 2016-05-14 15:03 UTC by Report Bug Copy Issue Report The parameter `$optionValue` is not used and could be removed. This check looks from parameters that have been defined for a function or method, but which are not used in the method body. Loading history...
319			{
320			if (!is_string($optionName)) {
321			throw new \InvalidArgumentException('$optionName must be a string');
322			}
323
324			return true;
325			}
326
327			/**
328			* @return array
329			*/
330			public static function getRequiredOptions()
331			{
332			return [];
333			}
334
335			/**
336			* @return array
337			*/
338			public static function getValidOptions()
339			{
340			return [];
341			}
342			}

PHPSocialNetwork / phpfastcache

Push — V6 ( 23eee8...7e10de )

DriverBaseTrait A

Complexity

Size/Duplication

Coupling/Cohesion

Importance

20 Methods

2 paths for user data to reach this point

Preventing Object Injection Attacks

General Strategies to prevent injection

Duplication Side-by-Side

Filter issues like