JsonSerializer::serializeData() - Code Metrics - Inspection of "Add fluent custom serializers handling" - zumba/json-serializer - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#31)

unknown

created 2017-02-21 13:53 UTC

JsonSerializer::serializeData() B

↳ Parent: JsonSerializer

Complexity

Conditions	9
Paths	6

Size

Total Lines	19
Code Lines	12

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	19
c	0
b	0
f	0
rs	7.756
cc	9
eloc	12
nc	6
nop	1

<?php

namespace Zumba\JsonSerializer;

use ReflectionClass;
use ReflectionException;
use SplObjectStorage;
use SuperClosure\SerializerInterface as ClosureSerializerInterface;
use Zumba\Contracts\EntitySerializer;
use Zumba\JsonSerializer\EntitySerializers\ClosureEntitySerializer;
use Zumba\JsonSerializer\EntitySerializers\DateTimeEntitySerializer;
use Zumba\JsonSerializer\EntitySerializers\SplDoublyLinkedListEntitySerializer;
use Zumba\JsonSerializer\Exception\JsonSerializerException;

class JsonSerializer
{
    const CLASS_IDENTIFIER_KEY = '@type';
    const CLOSURE_IDENTIFIER_KEY = '@closure';
    const UTF8ENCODED_IDENTIFIER_KEY = '@utf8encoded';
    const SCALAR_IDENTIFIER_KEY = '@scalar';
    const FLOAT_ADAPTER = 'JsonSerializerFloatAdapter';

    const KEY_UTF8ENCODED = 1;
    const VALUE_UTF8ENCODED = 2;

    /**
     * Storage for object
     *
     * Used for recursion
     *
     * @var SplObjectStorage
     */
    protected $objectStorage;

    /**
     * Object mapping for recursion
     *
     * @var array
     */
    protected $objectMapping = [];

    /**
     * Object mapping index
     *
     * @var integer
     */
    protected $objectMappingIndex = 0;

    /**
     * Support PRESERVE_ZERO_FRACTION json option
     *
     * @var boolean
     */
    protected $preserveZeroFractionSupport;

    /**
     * Map of custom object serializers
     *
     * @var array
     */
    protected $customObjectSerializerMap;

    /**
     * JsonSerializer constructor.
     * @param ClosureSerializerInterface|null $closureSerializer
     */
    public function __construct(ClosureSerializerInterface $closureSerializer = null)
    {
        $this->preserveZeroFractionSupport = defined('JSON_PRESERVE_ZERO_FRACTION');
        $this->registerEntitySerializer(new DateTimeEntitySerializer());
        $this->registerEntitySerializer(new SplDoublyLinkedListEntitySerializer());
        if ($closureSerializer != null) {
            $this->registerEntitySerializer(new ClosureEntitySerializer($closureSerializer));
        }

    }

    /**
     * @param $serializer
     * @return JsonSerializer
     */
    public function registerEntitySerializer(EntitySerializer $serializer)
    {
        $this->customObjectSerializerMap[$serializer->getType()] = $serializer;

        return $this;
    }

    /**
     * @param $className
     * @return bool
     */
    public function hasEntitySerializer($className)
    {
        return array_key_exists($className, $this->customObjectSerializerMap);
    }

    /**
     * @param $entity
     * @return EntitySerializer|null
     */
    protected function resolveEntitySerializer($entity)
    {
        if (($serialiser = $this->resolveEntitySerializerByDirectClassName($entity)) != null) {
            return $serialiser;
        }

        if (($serialiser = $this->resolveEntitySerializerByInheritance($entity)) != null) {
            return $serialiser;
        }
    }

    /**
     * @param $className
     * @return EntitySerializer|null
     */
    protected function resolveEntitySerializerByDirectClassName($className)
    {
        if (is_object($className)) {
            $className = get_class($className);
        }

        if (is_string($className) && class_exists($className)) {
            foreach ($this->customObjectSerializerMap as $type => $serialiser) {
                if ($type == $className) {
                    return $serialiser;
                }
            }
        }
    }

    /**
     * @param $object
     * @return EntitySerializer|null
     */
    protected function resolveEntitySerializerByInheritance($object)
    {
        if (is_string($object) && class_exists($object)) {
            list($ref, $object) = $this->getObjectInstance($object);
<?php

function returnThreeValues() {
    return array('a', 'b', 'c');
}

list($a, $b, $c) = returnThreeValues();

print $a . " - " . $c;
        }

        foreach ($this->customObjectSerializerMap as $type => $serialiser) {
            if ($object instanceof $type) {
                return $serialiser;
            }
        }
    }

    /**
     * Serialize the value in JSON
     *
     * @param mixed $value
     * @return string JSON encoded
     * @throws JsonSerializerException
     */
    public function serialize($value)
    {
        $this->reset();
        $serializedData = $this->serializeData($value);
        $encoded = json_encode($serializedData, $this->calculateEncodeOptions());
        if ($encoded === false || json_last_error() != JSON_ERROR_NONE) {
            if (json_last_error() != JSON_ERROR_UTF8) {
                throw new JsonSerializerException('Invalid data to encode to JSON. Error: ' . json_last_error());
            }

            $serializedData = $this->encodeNonUtf8ToUtf8($serializedData);
            $encoded = json_encode($serializedData, $this->calculateEncodeOptions());

            if ($encoded === false || json_last_error() != JSON_ERROR_NONE) {
                throw new JsonSerializerException('Invalid data to encode to JSON. Error: ' . json_last_error());
            }
        }
        return $this->processEncodedValue($encoded);
    }

    /**
     * Calculate encoding options
     *
     * @return integer
     */
    protected function calculateEncodeOptions()
    {
        $options = JSON_UNESCAPED_UNICODE;
        if ($this->preserveZeroFractionSupport) {
            $options |= JSON_PRESERVE_ZERO_FRACTION;
        }
        return $options;
    }

    /**
     * @param mixed $serializedData
     *
     * @return array
     */
    protected function encodeNonUtf8ToUtf8($serializedData)
    {
        if (is_string($serializedData)) {
            if (!mb_check_encoding($serializedData, 'UTF-8')) {
                $serializedData = [
                    static::SCALAR_IDENTIFIER_KEY      => mb_convert_encoding($serializedData, 'UTF-8', '8bit'),
                    static::UTF8ENCODED_IDENTIFIER_KEY => static::VALUE_UTF8ENCODED,
                ];
            }

            return $serializedData;
        }

        $encodedKeys = [];
        $encodedData = [];
        foreach ($serializedData as $key => $value) {
$collection = json_decode($data, true);
if ( ! is_array($collection)) {
    throw new \RuntimeException('$collection must be an array.');
}

foreach ($collection as $item) { /** ... */ }
            if (is_array($value)) {
                $value = $this->encodeNonUtf8ToUtf8($value);
            }

            if (!mb_check_encoding($key, 'UTF-8')) {
                $key = mb_convert_encoding($key, 'UTF-8', '8bit');
                $encodedKeys[$key] = (isset($encodedKeys[$key]) ? $encodedKeys[$key] : 0) | static::KEY_UTF8ENCODED;
            }

            if (is_string($value)) {
                if (!mb_check_encoding($value, 'UTF-8')) {
                    $value = mb_convert_encoding($value, 'UTF-8', '8bit');
                    $encodedKeys[$key] = (isset($encodedKeys[$key]) ? $encodedKeys[$key] : 0) | static::VALUE_UTF8ENCODED;
                }
            }

            $encodedData[$key] = $value;
        }

        if ($encodedKeys) {

            $encodedData[self::UTF8ENCODED_IDENTIFIER_KEY] = $encodedKeys;
        }

        return $encodedData;
    }

    /**
     * Execute post-encoding actions
     *
     * @param string $encoded
     * @return string
     */
    protected function processEncodedValue($encoded)
    {
        if (!$this->preserveZeroFractionSupport) {
            $encoded = preg_replace('/"' . static::FLOAT_ADAPTER . '\((.*?)\)"/', '\1', $encoded);
        }
        return $encoded;
    }


    /**
     * Parse the data to be json encoded
     *
     * @param mixed $value
     * @return mixed
     * @throws JsonSerializerException
     */
    protected function serializeData($value)
    {
        if (is_scalar($value) || $value === null) {
            if (!$this->preserveZeroFractionSupport && is_float($value) && ctype_digit((string)$value)) {
                // Because the PHP bug #50224, the float numbers with no
                // precision numbers are converted to integers when encoded
                $value = static::FLOAT_ADAPTER . '(' . $value . '.0)';
            }
            return $value;
        } elseif (is_resource($value)) {
            throw new JsonSerializerException('Resource is not supported in JsonSerializer');
        } elseif (is_array($value)) {
            return array_map([$this, __FUNCTION__], $value);
        } elseif ($value instanceof \Closure) {
            return $this->serializeClosure($value);
        }
        return $this->serializeObject($value);

    }

    /**
     * Extract the data from an object
     *
     * @param object $value
     * @return array
     */
    protected function serializeObject($value)
    {
        if ($this->objectStorage->contains($value)) {
            return [static::CLASS_IDENTIFIER_KEY => '@' . $this->objectStorage[$value]];
        }

        $this->objectStorage->attach($value, $this->objectMappingIndex++);
        $ref = new ReflectionClass($value);
        $className = $ref->getName();

        if (($serializer = $this->resolveEntitySerializer($value)) != null) {
            $data = [static::CLASS_IDENTIFIER_KEY => $className];
            $data += $serializer->serialize($value);
            return $data;
        }

        $paramsToSerialize = $this->getObjectProperties($ref, $value);
        $data = [static::CLASS_IDENTIFIER_KEY => $className];
        $data += array_map([$this, 'serializeData'], $this->extractObjectData($value, $ref, $paramsToSerialize));
        return $data;
    }

    /**
     * Return the list of properties to be serialized
     *
     * @param ReflectionClass $ref
     * @param object $value
     * @return array
     */
    protected function getObjectProperties($ref, $value)
    {
        if (method_exists($value, '__sleep')) {
            return $value->__sleep();
        }

        $props = [];
        foreach ($ref->getProperties() as $prop) {
            $props[] = $prop->getName();
        }
        return array_unique(array_merge($props, array_keys(get_object_vars($value))));
    }

    /**
     * Extract the object data
     *
     * @param object $value
     * @param ReflectionClass $ref
     * @param array $properties
     * @return array
     */
    protected function extractObjectData($value, $ref, $properties)
    {
        $data = [];
        foreach ($properties as $property) {
            try {
                $propRef = $ref->getProperty($property);
                $propRef->setAccessible(true);
                $data[$property] = $propRef->getValue($value);
            } catch (ReflectionException $e) {
                $data[$property] = $value->$property;
            }
        }
        return $data;
    }

    /**
     * Unserialize the value from JSON
     *
     * @param string $value
     * @return mixed
     */
    public function unserialize($value)
    {
        $this->reset();
        $data = json_decode($value, true);
        if ($data === null && json_last_error() != JSON_ERROR_NONE) {
            throw new JsonSerializerException('Invalid JSON to unserialize.');
        }

        if (mb_strpos($value, static::UTF8ENCODED_IDENTIFIER_KEY) !== false) {
            $data = $this->decodeNonUtf8FromUtf8($data);
        }

        return $this->unserializeData($data);
    }

    /**
     * Parse the json decode to convert to objects again
     *
     * @param mixed $value
     * @return mixed
     */
    protected function unserializeData($value)
    {
        if (is_scalar($value) || $value === null) {
            return $value;
        } elseif (isset($value[static::CLASS_IDENTIFIER_KEY])) {
            return $this->unserializeObject($value);

        } elseif (!empty($value[self::CLOSURE_IDENTIFIER_KEY])) {
            return $this->unserializeClosure($value);
        }

        return array_map([$this, __FUNCTION__], $value);
    }

    /**
     * @param mixed $serializedData
     *
     * @return mixed
     */
    protected function decodeNonUtf8FromUtf8($serializedData)
    {
        if (is_array($serializedData) && isset($serializedData[static::SCALAR_IDENTIFIER_KEY])) {
            $serializedData = mb_convert_encoding($serializedData[static::SCALAR_IDENTIFIER_KEY], '8bit', 'UTF-8');
            return $serializedData;
        } elseif (is_scalar($serializedData) || $serializedData === null) {
            return $serializedData;
        }

        $encodedKeys = [];
        if (isset($serializedData[static::UTF8ENCODED_IDENTIFIER_KEY])) {
            $encodedKeys = $serializedData[static::UTF8ENCODED_IDENTIFIER_KEY];
            unset($serializedData[static::UTF8ENCODED_IDENTIFIER_KEY]);
        }

        $decodedData = [];
        foreach ($serializedData as $key => $value) {
            if (is_array($value)) {
                $value = $this->decodeNonUtf8FromUtf8($value);
            }

            if (isset($encodedKeys[$key])) {
                $originalKey = $key;
                if ($encodedKeys[$key] & static::KEY_UTF8ENCODED) {
                    $key = mb_convert_encoding($key, '8bit', 'UTF-8');
                }
                if ($encodedKeys[$originalKey] & static::VALUE_UTF8ENCODED) {
                    $value = mb_convert_encoding($value, '8bit', 'UTF-8');
                }
            }

            $decodedData[$key] = $value;
        }

        return $decodedData;
    }

    /**
     * Convert the serialized array into an object
     *
     * @param array $value
     * @return object
     * @throws JsonSerializerException
     */
    protected function unserializeObject($value)
    {
        $className = $value[static::CLASS_IDENTIFIER_KEY];
        unset($value[static::CLASS_IDENTIFIER_KEY]);

        if ($className[0] === '@') {
            $index = substr($className, 1);
            return $this->objectMapping[$index];
        } elseif (!class_exists($className)) {
            throw new JsonSerializerException('Unable to find class ' . $className);
        } elseif (($serialier = $this->resolveEntitySerializer($className)) != null) {
            $obj = $serialier->unserialize($value);
            $this->objectMapping[$this->objectMappingIndex++] = $obj;
            return $obj;
        }

        list($ref, $object) = $this->getObjectInstance($className);
        $this->objectMapping[$this->objectMappingIndex++] = $object;
        foreach ($value as $property => $propertyValue) {
            try {
                $propRef = $ref->getProperty($property);
                $propRef->setAccessible(true);
                $propRef->setValue($object, $this->unserializeData($propertyValue));
            } catch (ReflectionException $e) {
                $object->$property = $this->unserializeData($propertyValue);
            }
        }

        if (method_exists($object, '__wakeup')) {
            $object->__wakeup();
        }
        return $object;
    }

    /**
     * @param $className
     * @return object
     */
    protected function getObjectInstance($className)
    {
        $ref = new ReflectionClass($className);
        return [$ref, $ref->newInstanceWithoutConstructor()];
    }

    /**
     * @param $value
     * @return array
     */
    protected function serializeClosure($value)
    {
        if (!$this->hasEntitySerializer('Closure')) {
            throw new JsonSerializerException('Closure serializer not provided to unserialize closure');
        }

        return $this->resolveEntitySerializer('Closure')->serialize($value);
    }

    /**
     * @param $value
     * @return mixed
     */
    protected function unserializeClosure($value)
    {
        if (!$this->hasEntitySerializer('Closure')) {
            throw new JsonSerializerException('Closure serializer not provided to unserialize closure');
        }

        return $this->resolveEntitySerializer('Closure')->unserialize($value);
    }

    /**
     * Reset variables
     *
     * @return void
     */
    protected function reset()
    {
        $this->objectStorage = new SplObjectStorage();
        $this->objectMapping = [];
        $this->objectMappingIndex = 0;
    }
}


1			<?php
2
3			namespace Zumba\JsonSerializer;
4
5			use ReflectionClass;
6			use ReflectionException;
7			use SplObjectStorage;
8			use SuperClosure\SerializerInterface as ClosureSerializerInterface;
9			use Zumba\Contracts\EntitySerializer;
10			use Zumba\JsonSerializer\EntitySerializers\ClosureEntitySerializer;
11			use Zumba\JsonSerializer\EntitySerializers\DateTimeEntitySerializer;
12			use Zumba\JsonSerializer\EntitySerializers\SplDoublyLinkedListEntitySerializer;
13			use Zumba\JsonSerializer\Exception\JsonSerializerException;
14
15			class JsonSerializer
16			{
17			const CLASS_IDENTIFIER_KEY = '@type';
18			const CLOSURE_IDENTIFIER_KEY = '@closure';
19			const UTF8ENCODED_IDENTIFIER_KEY = '@utf8encoded';
20			const SCALAR_IDENTIFIER_KEY = '@scalar';
21			const FLOAT_ADAPTER = 'JsonSerializerFloatAdapter';
22
23			const KEY_UTF8ENCODED = 1;
24			const VALUE_UTF8ENCODED = 2;
25
26			/**
27			* Storage for object
28			*
29			* Used for recursion
30			*
31			* @var SplObjectStorage
32			*/
33			protected $objectStorage;
34
35			/**
36			* Object mapping for recursion
37			*
38			* @var array
39			*/
40			protected $objectMapping = [];
41
42			/**
43			* Object mapping index
44			*
45			* @var integer
46			*/
47			protected $objectMappingIndex = 0;
48
49			/**
50			* Support PRESERVE_ZERO_FRACTION json option
51			*
52			* @var boolean
53			*/
54			protected $preserveZeroFractionSupport;
55
56			/**
57			* Map of custom object serializers
58			*
59			* @var array
60			*/
61			protected $customObjectSerializerMap;
62
63			/**
64			* JsonSerializer constructor.
65			* @param ClosureSerializerInterface\|null $closureSerializer
66			*/
67			public function __construct(ClosureSerializerInterface $closureSerializer = null)
68			{
69			$this->preserveZeroFractionSupport = defined('JSON_PRESERVE_ZERO_FRACTION');
70			$this->registerEntitySerializer(new DateTimeEntitySerializer());
71			$this->registerEntitySerializer(new SplDoublyLinkedListEntitySerializer());
72			if ($closureSerializer != null) {
73			$this->registerEntitySerializer(new ClosureEntitySerializer($closureSerializer));
74			}
75
76			}
77
78			/**
79			* @param $serializer
80			* @return JsonSerializer
81			*/
82			public function registerEntitySerializer(EntitySerializer $serializer)
83			{
84			$this->customObjectSerializerMap[$serializer->getType()] = $serializer;
85
86			return $this;
87			}
88
89			/**
90			* @param $className
91			* @return bool
92			*/
93			public function hasEntitySerializer($className)
94			{
95			return array_key_exists($className, $this->customObjectSerializerMap);
96			}
97
98			/**
99			* @param $entity
100			* @return EntitySerializer\|null
101			*/
102			protected function resolveEntitySerializer($entity)
103			{
104			if (($serialiser = $this->resolveEntitySerializerByDirectClassName($entity)) != null) {
105			return $serialiser;
106			}
107
108			if (($serialiser = $this->resolveEntitySerializerByInheritance($entity)) != null) {
109			return $serialiser;
110			}
111			}
112
113			/**
114			* @param $className
115			* @return EntitySerializer\|null
116			*/
117			protected function resolveEntitySerializerByDirectClassName($className)
118			{
119			if (is_object($className)) {
120			$className = get_class($className);
121			}
122
123			if (is_string($className) && class_exists($className)) {
124			foreach ($this->customObjectSerializerMap as $type => $serialiser) {
125			if ($type == $className) {
126			return $serialiser;
127			}
128			}
129			}
130			}
131
132			/**
133			* @param $object
134			* @return EntitySerializer\|null
135			*/
136			protected function resolveEntitySerializerByInheritance($object)
137			{
138			if (is_string($object) && class_exists($object)) {
139			list($ref, $object) = $this->getObjectInstance($object);
			0 ignored issues – show Unused Code introduced 2017-02-21 12:15 UTC by Report Bug Copy Issue Report The assignment to `$ref` is unused. Consider omitting it like so `list($first,,$third)`. This checks looks for assignemnts to variables using the `list(...)` function, where not all assigned variables are subsequently used. Consider the following code example. <?php function returnThreeValues() { return array('a', 'b', 'c'); } list($a, $b, $c) = returnThreeValues(); print $a . " - " . $c; Only the variables `$a` and `$c` are used. There was no need to assign `$b`. Instead, the list call could have been. list($a,, $c) = returnThreeValues(); Loading history...
140			}
141
142			foreach ($this->customObjectSerializerMap as $type => $serialiser) {
143			if ($object instanceof $type) {
144			return $serialiser;
145			}
146			}
147			}
148
149			/**
150			* Serialize the value in JSON
151			*
152			* @param mixed $value
153			* @return string JSON encoded
154			* @throws JsonSerializerException
155			*/
156			public function serialize($value)
157			{
158			$this->reset();
159			$serializedData = $this->serializeData($value);
160			$encoded = json_encode($serializedData, $this->calculateEncodeOptions());
161			if ($encoded === false \|\| json_last_error() != JSON_ERROR_NONE) {
162			if (json_last_error() != JSON_ERROR_UTF8) {
163			throw new JsonSerializerException('Invalid data to encode to JSON. Error: ' . json_last_error());
164			}
165
166			$serializedData = $this->encodeNonUtf8ToUtf8($serializedData);
167			$encoded = json_encode($serializedData, $this->calculateEncodeOptions());
168
169			if ($encoded === false \|\| json_last_error() != JSON_ERROR_NONE) {
170			throw new JsonSerializerException('Invalid data to encode to JSON. Error: ' . json_last_error());
171			}
172			}
173			return $this->processEncodedValue($encoded);
174			}
175
176			/**
177			* Calculate encoding options
178			*
179			* @return integer
180			*/
181			protected function calculateEncodeOptions()
182			{
183			$options = JSON_UNESCAPED_UNICODE;
184			if ($this->preserveZeroFractionSupport) {
185			$options \|= JSON_PRESERVE_ZERO_FRACTION;
186			}
187			return $options;
188			}
189
190			/**
191			* @param mixed $serializedData
192			*
193			* @return array
194			*/
195			protected function encodeNonUtf8ToUtf8($serializedData)
196			{
197			if (is_string($serializedData)) {
198			if (!mb_check_encoding($serializedData, 'UTF-8')) {
199			$serializedData = [
200			static::SCALAR_IDENTIFIER_KEY => mb_convert_encoding($serializedData, 'UTF-8', '8bit'),
201			static::UTF8ENCODED_IDENTIFIER_KEY => static::VALUE_UTF8ENCODED,
202			];
203			}
204
205			return $serializedData;
206			}
207
208			$encodedKeys = [];
209			$encodedData = [];
210			foreach ($serializedData as $key => $value) {
			0 ignored issues – show Bug introduced 2016-06-07 11:42 UTC by Report Bug Copy Issue Report The expression `$serializedData` of type `object\|integer\|double\|null\|array\|boolean` is not guaranteed to be traversable. How about adding an additional type check? There are different options of fixing this problem. If you want to be on the safe side, you can add an additional type-check: $collection = json_decode($data, true); if ( ! is_array($collection)) { throw new \RuntimeException('$collection must be an array.'); } foreach ($collection as $item) { /** ... / } If you are sure that the expression is traversable, you might want to add a doc comment cast* to improve IDE auto-completion and static analysis: /** @var array $collection / $collection = json_decode($data, true); foreach ($collection as $item) { /* .. / } Mark the issue as a false-positive*: Just hover the remove button, in the top-right corner of this issue for more options. Loading history...
211			if (is_array($value)) {
212			$value = $this->encodeNonUtf8ToUtf8($value);
213			}
214
215			if (!mb_check_encoding($key, 'UTF-8')) {
216			$key = mb_convert_encoding($key, 'UTF-8', '8bit');
217			$encodedKeys[$key] = (isset($encodedKeys[$key]) ? $encodedKeys[$key] : 0) \| static::KEY_UTF8ENCODED;
218			}
219
220			if (is_string($value)) {
221			if (!mb_check_encoding($value, 'UTF-8')) {
222			$value = mb_convert_encoding($value, 'UTF-8', '8bit');
223			$encodedKeys[$key] = (isset($encodedKeys[$key]) ? $encodedKeys[$key] : 0) \| static::VALUE_UTF8ENCODED;
224			}
225			}
226
227			$encodedData[$key] = $value;
228			}
229
230			if ($encodedKeys) {
			0 ignored issues – show Bug Best Practice introduced 2016-06-07 11:42 UTC by Report Bug Copy Issue Report The expression `$encodedKeys` of type `array` is implicitly converted to a boolean; are you sure this is intended? If so, consider using `! empty($expr)` instead to make it clear that you intend to check for an array without elements. This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent. Consider making the comparison explicit by using `empty(..)` or `! empty(...)` instead. Loading history...
231			$encodedData[self::UTF8ENCODED_IDENTIFIER_KEY] = $encodedKeys;
232			}
233
234			return $encodedData;
235			}
236
237			/**
238			* Execute post-encoding actions
239			*
240			* @param string $encoded
241			* @return string
242			*/
243			protected function processEncodedValue($encoded)
244			{
245			if (!$this->preserveZeroFractionSupport) {
246			$encoded = preg_replace('/"' . static::FLOAT_ADAPTER . '\((.*?)\)"/', '\1', $encoded);
247			}
248			return $encoded;
249			}
250
251
252			/**
253			* Parse the data to be json encoded
254			*
255			* @param mixed $value
256			* @return mixed
257			* @throws JsonSerializerException
258			*/
259			protected function serializeData($value)
260			{
261			if (is_scalar($value) \|\| $value === null) {
262			if (!$this->preserveZeroFractionSupport && is_float($value) && ctype_digit((string)$value)) {
263			// Because the PHP bug #50224, the float numbers with no
264			// precision numbers are converted to integers when encoded
265			$value = static::FLOAT_ADAPTER . '(' . $value . '.0)';
266			}
267			return $value;
268			} elseif (is_resource($value)) {
269			throw new JsonSerializerException('Resource is not supported in JsonSerializer');
270			} elseif (is_array($value)) {
271			return array_map([$this, __FUNCTION__], $value);
272			} elseif ($value instanceof \Closure) {
273			return $this->serializeClosure($value);
274			}
275			return $this->serializeObject($value);
276
277			}
278
279			/**
280			* Extract the data from an object
281			*
282			* @param object $value
283			* @return array
284			*/
285			protected function serializeObject($value)
286			{
287			if ($this->objectStorage->contains($value)) {
288			return [static::CLASS_IDENTIFIER_KEY => '@' . $this->objectStorage[$value]];
289			}
290
291			$this->objectStorage->attach($value, $this->objectMappingIndex++);
292			$ref = new ReflectionClass($value);
293			$className = $ref->getName();
294
295			if (($serializer = $this->resolveEntitySerializer($value)) != null) {
296			$data = [static::CLASS_IDENTIFIER_KEY => $className];
297			$data += $serializer->serialize($value);
298			return $data;
299			}
300
301			$paramsToSerialize = $this->getObjectProperties($ref, $value);
302			$data = [static::CLASS_IDENTIFIER_KEY => $className];
303			$data += array_map([$this, 'serializeData'], $this->extractObjectData($value, $ref, $paramsToSerialize));
304			return $data;
305			}
306
307			/**
308			* Return the list of properties to be serialized
309			*
310			* @param ReflectionClass $ref
311			* @param object $value
312			* @return array
313			*/
314			protected function getObjectProperties($ref, $value)
315			{
316			if (method_exists($value, '__sleep')) {
317			return $value->__sleep();
318			}
319
320			$props = [];
321			foreach ($ref->getProperties() as $prop) {
322			$props[] = $prop->getName();
323			}
324			return array_unique(array_merge($props, array_keys(get_object_vars($value))));
325			}
326
327			/**
328			* Extract the object data
329			*
330			* @param object $value
331			* @param ReflectionClass $ref
332			* @param array $properties
333			* @return array
334			*/
335			protected function extractObjectData($value, $ref, $properties)
336			{
337			$data = [];
338			foreach ($properties as $property) {
339			try {
340			$propRef = $ref->getProperty($property);
341			$propRef->setAccessible(true);
342			$data[$property] = $propRef->getValue($value);
343			} catch (ReflectionException $e) {
344			$data[$property] = $value->$property;
345			}
346			}
347			return $data;
348			}
349
350			/**
351			* Unserialize the value from JSON
352			*
353			* @param string $value
354			* @return mixed
355			*/
356			public function unserialize($value)
357			{
358			$this->reset();
359			$data = json_decode($value, true);
360			if ($data === null && json_last_error() != JSON_ERROR_NONE) {
361			throw new JsonSerializerException('Invalid JSON to unserialize.');
362			}
363
364			if (mb_strpos($value, static::UTF8ENCODED_IDENTIFIER_KEY) !== false) {
365			$data = $this->decodeNonUtf8FromUtf8($data);
366			}
367
368			return $this->unserializeData($data);
369			}
370
371			/**
372			* Parse the json decode to convert to objects again
373			*
374			* @param mixed $value
375			* @return mixed
376			*/
377			protected function unserializeData($value)
378			{
379			if (is_scalar($value) \|\| $value === null) {
380			return $value;
381			} elseif (isset($value[static::CLASS_IDENTIFIER_KEY])) {
382			return $this->unserializeObject($value);
			0 ignored issues – show Bug introduced 2016-06-02 20:40 UTC by Report Bug Copy Issue Report It seems like `$value` defined by parameter `$value` on line 377 can also be of type `object`; however, `Zumba\JsonSerializer\Jso...er::unserializeObject()` does only seem to accept `array`, maybe add an additional type check? This check looks at variables that have been passed in as parameters and are passed out again to other methods. If the outgoing method call has stricter type requirements than the method itself, an issue is raised. An additional type check may prevent trouble. Loading history...
383			} elseif (!empty($value[self::CLOSURE_IDENTIFIER_KEY])) {
384			return $this->unserializeClosure($value);
385			}
386
387			return array_map([$this, __FUNCTION__], $value);
388			}
389
390			/**
391			* @param mixed $serializedData
392			*
393			* @return mixed
394			*/
395			protected function decodeNonUtf8FromUtf8($serializedData)
396			{
397			if (is_array($serializedData) && isset($serializedData[static::SCALAR_IDENTIFIER_KEY])) {
398			$serializedData = mb_convert_encoding($serializedData[static::SCALAR_IDENTIFIER_KEY], '8bit', 'UTF-8');
399			return $serializedData;
400			} elseif (is_scalar($serializedData) \|\| $serializedData === null) {
401			return $serializedData;
402			}
403
404			$encodedKeys = [];
405			if (isset($serializedData[static::UTF8ENCODED_IDENTIFIER_KEY])) {
406			$encodedKeys = $serializedData[static::UTF8ENCODED_IDENTIFIER_KEY];
407			unset($serializedData[static::UTF8ENCODED_IDENTIFIER_KEY]);
408			}
409
410			$decodedData = [];
411			foreach ($serializedData as $key => $value) {
412			if (is_array($value)) {
413			$value = $this->decodeNonUtf8FromUtf8($value);
414			}
415
416			if (isset($encodedKeys[$key])) {
417			$originalKey = $key;
418			if ($encodedKeys[$key] & static::KEY_UTF8ENCODED) {
419			$key = mb_convert_encoding($key, '8bit', 'UTF-8');
420			}
421			if ($encodedKeys[$originalKey] & static::VALUE_UTF8ENCODED) {
422			$value = mb_convert_encoding($value, '8bit', 'UTF-8');
423			}
424			}
425
426			$decodedData[$key] = $value;
427			}
428
429			return $decodedData;
430			}
431
432			/**
433			* Convert the serialized array into an object
434			*
435			* @param array $value
436			* @return object
437			* @throws JsonSerializerException
438			*/
439			protected function unserializeObject($value)
440			{
441			$className = $value[static::CLASS_IDENTIFIER_KEY];
442			unset($value[static::CLASS_IDENTIFIER_KEY]);
443
444			if ($className[0] === '@') {
445			$index = substr($className, 1);
446			return $this->objectMapping[$index];
447			} elseif (!class_exists($className)) {
448			throw new JsonSerializerException('Unable to find class ' . $className);
449			} elseif (($serialier = $this->resolveEntitySerializer($className)) != null) {
450			$obj = $serialier->unserialize($value);
451			$this->objectMapping[$this->objectMappingIndex++] = $obj;
452			return $obj;
453			}
454
455			list($ref, $object) = $this->getObjectInstance($className);
456			$this->objectMapping[$this->objectMappingIndex++] = $object;
457			foreach ($value as $property => $propertyValue) {
458			try {
459			$propRef = $ref->getProperty($property);
460			$propRef->setAccessible(true);
461			$propRef->setValue($object, $this->unserializeData($propertyValue));
462			} catch (ReflectionException $e) {
463			$object->$property = $this->unserializeData($propertyValue);
464			}
465			}
466
467			if (method_exists($object, '__wakeup')) {
468			$object->__wakeup();
469			}
470			return $object;
471			}
472
473			/**
474			* @param $className
475			* @return object
476			*/
477			protected function getObjectInstance($className)
478			{
479			$ref = new ReflectionClass($className);
480			return [$ref, $ref->newInstanceWithoutConstructor()];
481			}
482
483			/**
484			* @param $value
485			* @return array
486			*/
487			protected function serializeClosure($value)
488			{
489			if (!$this->hasEntitySerializer('Closure')) {
490			throw new JsonSerializerException('Closure serializer not provided to unserialize closure');
491			}
492
493			return $this->resolveEntitySerializer('Closure')->serialize($value);
494			}
495
496			/**
497			* @param $value
498			* @return mixed
499			*/
500			protected function unserializeClosure($value)
501			{
502			if (!$this->hasEntitySerializer('Closure')) {
503			throw new JsonSerializerException('Closure serializer not provided to unserialize closure');
504			}
505
506			return $this->resolveEntitySerializer('Closure')->unserialize($value);
507			}
508
509			/**
510			* Reset variables
511			*
512			* @return void
513			*/
514			protected function reset()
515			{
516			$this->objectStorage = new SplObjectStorage();
517			$this->objectMapping = [];
518			$this->objectMappingIndex = 0;
519			}
520			}
521

zumba / json-serializer

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Pull Request — master (#31)

JsonSerializer::serializeData() B

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