Serializer::unserialize() - Code Metrics - Inspection of "+ Сериализация объектов" - nokitakaze/php-serializer - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — developer ( e69f4b...3ddfd0 )

by Никита

created 2018-02-14 14:12 UTC

Serializer::unserialize() A

↳ Parent: Serializer

Complexity

Conditions	2
Paths	2

Size

Total Lines	16
Code Lines	9

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	5
CRAP Score	2.2109

Importance

Changes

Metric	Value
dl	0
loc	16
ccs	5
cts	8
cp	0.625
rs	9.4285
c	0
b	0
f	0
cc	2
eloc	9
nc	2
nop	3
crap	2.2109

<?php

    namespace NokitaKaze\Serializer;

    class Serializer {
        const TYPE_INT = 0;
        const TYPE_DOUBLE = 1;
        const TYPE_STRING = 2;
        const TYPE_ARRAY_INDEX = 3;
        const TYPE_ARRAY_KEY_VALUE = 4;
        const TYPE_OBJECT_KEY_VALUE = 5;
        const TYPE_SERIALIZABLE = ISerializable::TYPE;
        const TYPE_RESOURCE = 7;
        const TYPE_BOOLEAN = 7;
        const TYPE_NULL = 8;

        const DEFAULT_DEPTH = 255;

        /**
         * @param mixed   $data
         * @param integer $depth
         *
         * @return string
         */
        public static function serialize($data, $depth = self::DEFAULT_DEPTH) {
            return json_encode(static::serialize_to_variant($data, $depth));
        }

        /**
         * @param mixed   $text
         * @param boolean $is_valid
         * @param boolean $safe
         *
         * @return mixed
         */
        public static function unserialize($text, &$is_valid, $safe = true) {
            $data = json_decode($text);

            // @todo text json
            try {
                $object = static::unserialize_variant_to_value($data, $safe);
            } catch (UnserializeException $e) {
                $is_valid = false;

                return null;
            }

            $is_valid = true;

            return $object;
        }

        /**
         * @param mixed   $data
         * @param integer $depth
         *
         * @return Variant|object|boolean|null
         */
        public static function serialize_to_variant($data, $depth = self::DEFAULT_DEPTH) {
            if ($depth < 0) {
                return null;
            }
            if (is_double($data)) {
                return static::serialize_double($data);
            } elseif (is_int($data)) {
                return static::serialize_int($data);
            } elseif (is_string($data)) {
                return static::serialize_string($data);
            } elseif (is_array($data) and static::is_indexed_array($data)) {
                return static::serialize_indexed_array($data, $depth - 1);
            } elseif (is_array($data)) {
                return static::serialize_array_key_value($data, $depth - 1);
            } elseif (is_object($data) and ($data instanceof ISerializable)) {
                /**
                 * @var ISerializable $data
                 */
                return $data->ns_serialize();
            } elseif (is_object($data)) {
                return static::serialize_object_key_value($data);
            } elseif (is_resource($data)) {
                // @todo
                return null;
            } elseif (is_bool($data)) {
                return $data;
            } elseif (is_null($data)) {
                return null;
            } else {
                return (object) [
                    'type' => self::TYPE_NULL,
                ];
            }
        }

        protected static $_binary_codes = [
            0, 1, 2, 3, 4, 5, 6, 7, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 128, 129, 130,
            131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153,
            154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176,
            177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199,
            200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222,
            223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245,
            246, 247, 248, 249, 250, 251, 252, 253, 254,
        ];

        protected static $_binary_codes_flip = null;

        /**
         * @param string $value
         *
         * @return boolean
         */
        public static function is_binary_string($value) {
            if (is_null(self::$_binary_codes_flip)) {
                self::$_binary_codes_flip = array_flip(self::$_binary_codes);
            }

            // @todo Оптимизировать через > & <
            for ($i = 0; $i < strlen($value); $i++) {
                $ord = ord(substr($value, $i, 1));
                if (isset(self::$_binary_codes_flip[$ord])) {
                    return true;
                }
            }

            return false;
        }

        /**
         * @param double $value
         *
         * @return Variant|object
         */
        public static function serialize_double($value) {
            return (object) [
                'type' => self::TYPE_DOUBLE,
                'value' => serialize($value),
            ];
        }

        /**
         * @param integer $value
         *
         * @return Variant|object
         */
        public static function serialize_int($value) {
            return (object) [
                'type' => self::TYPE_INT,
                'value' => $value,
            ];
        }

        /**
         * @param array   $value
         * @param integer $depth
         *
         * @return Variant|object
         */
        public static function serialize_indexed_array(array $value, $depth) {
            $output = [];
            foreach ($value as $sub_value) {
                $output[] = self::serialize_to_variant($sub_value, $depth - 1);
            }

            return (object) [
                'type' => self::TYPE_ARRAY_INDEX,
                'value' => $output,
            ];
        }

        /**
         * @param array $value
         * @param integer $depth
         *
         * @return Variant|object
         */
        public static function serialize_array_key_value(array $value, $depth) {
            $output = [];
            $keys = [];
            foreach ($value as $key => $sub_value) {
                $keys[] = self::serialize_to_variant($key, $depth - 1);
                $output[] = self::serialize_to_variant($sub_value, $depth - 1);
            }

            return (object) [
                'type' => self::TYPE_ARRAY_KEY_VALUE,
                'value' => $output,
                'keys' => $keys,
            ];
        }

        /**
         * @param \stdClass|object $value
         *
         * @return Variant|object
         */
        public static function serialize_object_key_value($value) {
            $output = [];
            $keys = [];

            foreach (get_object_vars($value) as $key => $value) {
                $keys[] = self::serialize_to_variant($key);
                $output[] = self::serialize_to_variant($value);
            }

            return (object) [
                'type' => self::TYPE_OBJECT_KEY_VALUE,
                'value' => $output,
                'keys' => $keys,
            ];
        }

        /**
         * @param string $value
         *
         * @return Variant|object
         */
        public static function serialize_string($value) {
            return (object) [
                'type' => self::TYPE_STRING,
                'value' => base64_encode(gzcompress($value)),
            ];
        }

        /**
         * @param array $input
         *
         * @return boolean
         */
        public static function is_indexed_array(array $input) {
            if (empty($input)) {
                return true;
            }

            $keys = array_keys($input);
            for ($i = 0; $i < count($keys); $i++) {
for ($i=0; $i<count($array); $i++) { // calls count() on each iteration
}

// Better
for ($i=0, $c=count($array); $i<$c; $i++) { // calls count() just once
}
                if ($keys[$i] !== $i) {
                    return false;
                }
            }

            return true;
        }

        /**
         * @param \stdClass|Variant $variant
         *
         * @return string
         */
        public static function unserialize_string($variant) {
            return gzuncompress(base64_decode($variant->value));
        }

        /**
         * @param \stdClass|Variant $variant
         * @param boolean           $safe
         *
         * @return array
         * @throws UnserializeException
         */
        public static function unserialize_array_index($variant, $safe) {
            $output = [];
            foreach ($variant->value as $sub_value) {
                $output[] = self::unserialize_variant_to_value($sub_value, $safe);
            }

            return $output;
        }

        /**
         * @param \stdClass|KeyValueVariant $variant
         * @param boolean                   $safe
         *
         * @return array
         * @throws UnserializeException
         */
        public static function unserialize_array_key_value($variant, $safe) {
            $count = count($variant->keys);
            if ($count != count($variant->value)) {
                throw new UnserializeException(sprintf('Array keys count (%d) does not equal value count (%d)',
                    $count,
                    count($variant->value)
                ), 2);
            }

            $output = [];
            for ($i = 0; $i < count($variant->keys); $i++) {
for ($i=0; $i<count($array); $i++) { // calls count() on each iteration
}

// Better
for ($i=0, $c=count($array); $i<$c; $i++) { // calls count() just once
}
                $output[self::unserialize_variant_to_value($variant->keys[$i], $safe)]
                    = self::unserialize_variant_to_value($variant->value[$i], $safe);
            }

            return $output;
        }

        /**
         * @param SerializableVariant|boolean|null|object $variant
         * @param boolean                                 $safe
         *
         * @return mixed
         * @throws UnserializeException
         */
        public static function unserialize_object($variant, $safe) {
            if (!class_exists($variant->class_FQDN)) {
                throw new UnserializeException(sprintf('Class "%s" does not exist', $variant->class_FQDN));
            }
            if (!is_subclass_of($variant->class_FQDN, 'NokitaKaze\\Serializer\\ISerializable')) {

                throw new UnserializeException(sprintf('Class "%s" does not implement ISerializable', $variant->class_FQDN));
            }
            if ($safe and !is_subclass_of($variant->class_FQDN, 'NokitaKaze\\Serializer\\ISafeSerializable')) {

                // Не поддерживает safe-десериализацию
                return null;
            }

            /**
             * @var ISerializable $class
             */
            $class = $variant->class_FQDN;

            return $class::ns_unserialize($variant);
        }

        /**
         * @param Variant|boolean|null|object $variant
         * @param boolean                     $safe
         *
         * @return mixed
         * @throws UnserializeException
         */
        public static function unserialize_variant_to_value($variant, $safe) {
            if (is_null($variant)) {
                return null;
            } elseif (is_bool($variant)) {
                return $variant;
            } else {
                switch ($variant->type) {
                    case self::TYPE_INT:
                        return $variant->value;
                    case self::TYPE_DOUBLE:
                        return \unserialize($variant->value);
                    case self::TYPE_STRING:
                        return self::unserialize_string($variant);
                    case self::TYPE_ARRAY_INDEX:
                        return self::unserialize_array_index($variant, $safe);
                    case self::TYPE_ARRAY_KEY_VALUE:
                        return self::unserialize_array_key_value($variant, $safe);
                    case self::TYPE_OBJECT_KEY_VALUE:
                        return (object) self::unserialize_array_key_value($variant, $safe);
                    case self::TYPE_SERIALIZABLE:
                        return self::unserialize_object($variant, $safe);
                    default:
                        throw new UnserializeException('Malformed type '.$variant->type, 1);
                }
            }
        }

    }

?>


1		<?php
2
3		namespace NokitaKaze\Serializer;
4
5		class Serializer {
6		const TYPE_INT = 0;
7		const TYPE_DOUBLE = 1;
8		const TYPE_STRING = 2;
9		const TYPE_ARRAY_INDEX = 3;
10		const TYPE_ARRAY_KEY_VALUE = 4;
11		const TYPE_OBJECT_KEY_VALUE = 5;
12		const TYPE_SERIALIZABLE = ISerializable::TYPE;
13		const TYPE_RESOURCE = 7;
14		const TYPE_BOOLEAN = 7;
15		const TYPE_NULL = 8;
16
17		const DEFAULT_DEPTH = 255;
18
19		/**
20		* @param mixed $data
21		* @param integer $depth
22		*
23		* @return string
24		*/
25	22	public static function serialize($data, $depth = self::DEFAULT_DEPTH) {
26	22	return json_encode(static::serialize_to_variant($data, $depth));
27		}
28
29		/**
30		* @param mixed $text
31		* @param boolean $is_valid
32		* @param boolean $safe
33		*
34		* @return mixed
35		*/
36	22	public static function unserialize($text, &$is_valid, $safe = true) {
37	22	$data = json_decode($text);
38
39		// @todo text json
40		try {
41	22	$object = static::unserialize_variant_to_value($data, $safe);
42		} catch (UnserializeException $e) {
43		$is_valid = false;
44
45		return null;
46		}
47
48	22	$is_valid = true;
49
50	22	return $object;
51		}
52
53		/**
54		* @param mixed $data
55		* @param integer $depth
56		*
57		* @return Variant\|object\|boolean\|null
58		*/
59	22	public static function serialize_to_variant($data, $depth = self::DEFAULT_DEPTH) {
60	22	if ($depth < 0) {
61		return null;
62		}
63	22	if (is_double($data)) {
64	8	return static::serialize_double($data);
65	16	} elseif (is_int($data)) {
66	4	return static::serialize_int($data);
67	15	} elseif (is_string($data)) {
68	5	return static::serialize_string($data);
69	13	} elseif (is_array($data) and static::is_indexed_array($data)) {
70	3	return static::serialize_indexed_array($data, $depth - 1);
71	12	} elseif (is_array($data)) {
72	2	return static::serialize_array_key_value($data, $depth - 1);
73	11	} elseif (is_object($data) and ($data instanceof ISerializable)) {
74		/**
75		* @var ISerializable $data
76		*/
77	3	return $data->ns_serialize();
78	8	} elseif (is_object($data)) {
79	4	return static::serialize_object_key_value($data);
80	4	} elseif (is_resource($data)) {
81		// @todo
82		return null;
83	4	} elseif (is_bool($data)) {
84	3	return $data;
85	2	} elseif (is_null($data)) {
86	2	return null;
87		} else {
88		return (object) [
89		'type' => self::TYPE_NULL,
90		];
91		}
92		}
93
94		protected static $_binary_codes = [
95		0, 1, 2, 3, 4, 5, 6, 7, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 128, 129, 130,
96		131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153,
97		154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176,
98		177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199,
99		200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222,
100		223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245,
101		246, 247, 248, 249, 250, 251, 252, 253, 254,
102		];
103
104		protected static $_binary_codes_flip = null;
105
106		/**
107		* @param string $value
108		*
109		* @return boolean
110		*/
111	18	public static function is_binary_string($value) {
112	18	if (is_null(self::$_binary_codes_flip)) {
113	1	self::$_binary_codes_flip = array_flip(self::$_binary_codes);
114		}
115
116		// @todo Оптимизировать через > & <
117	18	for ($i = 0; $i < strlen($value); $i++) {
118	18	$ord = ord(substr($value, $i, 1));
119	18	if (isset(self::$_binary_codes_flip[$ord])) {
120		return true;
121		}
122		}
123
124	18	return false;
125		}
126
127		/**
128		* @param double $value
129		*
130		* @return Variant\|object
131		*/
132	8	public static function serialize_double($value) {
133		return (object) [
134	8	'type' => self::TYPE_DOUBLE,
135	8	'value' => serialize($value),
136		];
137		}
138
139		/**
140		* @param integer $value
141		*
142		* @return Variant\|object
143		*/
144	4	public static function serialize_int($value) {
145		return (object) [
146	4	'type' => self::TYPE_INT,
147	4	'value' => $value,
148		];
149		}
150
151		/**
152		* @param array $value
153		* @param integer $depth
154		*
155		* @return Variant\|object
156		*/
157	3	public static function serialize_indexed_array(array $value, $depth) {
158	3	$output = [];
159	3	foreach ($value as $sub_value) {
160	2	$output[] = self::serialize_to_variant($sub_value, $depth - 1);
161		}
162
163		return (object) [
164	3	'type' => self::TYPE_ARRAY_INDEX,
165	3	'value' => $output,
166		];
167		}
168
169		/**
170		* @param array $value
171		* @param integer $depth
172		*
173		* @return Variant\|object
174		*/
175	2	public static function serialize_array_key_value(array $value, $depth) {
176	2	$output = [];
177	2	$keys = [];
178	2	foreach ($value as $key => $sub_value) {
179	2	$keys[] = self::serialize_to_variant($key, $depth - 1);
180	2	$output[] = self::serialize_to_variant($sub_value, $depth - 1);
181		}
182
183		return (object) [
184	2	'type' => self::TYPE_ARRAY_KEY_VALUE,
185	2	'value' => $output,
186	2	'keys' => $keys,
187		];
188		}
189
190		/**
191		* @param \stdClass\|object $value
192		*
193		* @return Variant\|object
194		*/
195	4	public static function serialize_object_key_value($value) {
196	4	$output = [];
197	4	$keys = [];
198
199	4	foreach (get_object_vars($value) as $key => $value) {
200	1	$keys[] = self::serialize_to_variant($key);
201	1	$output[] = self::serialize_to_variant($value);
202		}
203
204		return (object) [
205	4	'type' => self::TYPE_OBJECT_KEY_VALUE,
206	4	'value' => $output,
207	4	'keys' => $keys,
208		];
209		}
210
211		/**
212		* @param string $value
213		*
214		* @return Variant\|object
215		*/
216	5	public static function serialize_string($value) {
217		return (object) [
218	5	'type' => self::TYPE_STRING,
219	5	'value' => base64_encode(gzcompress($value)),
220		];
221		}
222
223		/**
224		* @param array $input
225		*
226		* @return boolean
227		*/
228	5	public static function is_indexed_array(array $input) {
229	5	if (empty($input)) {
230	1	return true;
231		}
232
233	4	$keys = array_keys($input);
234	4	for ($i = 0; $i < count($keys); $i++) {
		0 ignored issues – show Performance Best Practice introduced 2018-02-14 13:01 UTC by Report Bug Copy Issue Report It seems like you are calling the size function `count()` as part of the test condition. You might want to compute the size beforehand, and not on each iteration. If the size of the collection does not change during the iteration, it is generally a good practice to compute it beforehand, and not on each iteration: for ($i=0; $i<count($array); $i++) { // calls count() on each iteration } // Better for ($i=0, $c=count($array); $i<$c; $i++) { // calls count() just once } Loading history...
235	4	if ($keys[$i] !== $i) {
236	2	return false;
237		}
238		}
239
240	2	return true;
241		}
242
243		/**
244		* @param \stdClass\|Variant $variant
245		*
246		* @return string
247		*/
248	5	public static function unserialize_string($variant) {
249	5	return gzuncompress(base64_decode($variant->value));
250		}
251
252		/**
253		* @param \stdClass\|Variant $variant
254		* @param boolean $safe
255		*
256		* @return array
257		* @throws UnserializeException
258		*/
259	3	public static function unserialize_array_index($variant, $safe) {
260	3	$output = [];
261	3	foreach ($variant->value as $sub_value) {
262	2	$output[] = self::unserialize_variant_to_value($sub_value, $safe);
263		}
264
265	3	return $output;
266		}
267
268		/**
269		* @param \stdClass\|KeyValueVariant $variant
270		* @param boolean $safe
271		*
272		* @return array
273		* @throws UnserializeException
274		*/
275	6	public static function unserialize_array_key_value($variant, $safe) {
276	6	$count = count($variant->keys);
277	6	if ($count != count($variant->value)) {
278		throw new UnserializeException(sprintf('Array keys count (%d) does not equal value count (%d)',
279		$count,
280		count($variant->value)
281		), 2);
282		}
283
284	6	$output = [];
285	6	for ($i = 0; $i < count($variant->keys); $i++) {
		0 ignored issues – show Performance Best Practice introduced 2018-02-14 13:01 UTC by Report Bug Copy Issue Report It seems like you are calling the size function `count()` as part of the test condition. You might want to compute the size beforehand, and not on each iteration. If the size of the collection does not change during the iteration, it is generally a good practice to compute it beforehand, and not on each iteration: for ($i=0; $i<count($array); $i++) { // calls count() on each iteration } // Better for ($i=0, $c=count($array); $i<$c; $i++) { // calls count() just once } Loading history...
286	3	$output[self::unserialize_variant_to_value($variant->keys[$i], $safe)]
287	3	= self::unserialize_variant_to_value($variant->value[$i], $safe);
288		}
289
290	6	return $output;
291		}
292
293		/**
294		* @param SerializableVariant\|boolean\|null\|object $variant
295		* @param boolean $safe
296		*
297		* @return mixed
298		* @throws UnserializeException
299		*/
300	3	public static function unserialize_object($variant, $safe) {
301	3	if (!class_exists($variant->class_FQDN)) {
302		throw new UnserializeException(sprintf('Class "%s" does not exist', $variant->class_FQDN));
303		}
304	3	if (!is_subclass_of($variant->class_FQDN, 'NokitaKaze\\Serializer\\ISerializable')) {
		1 ignored issue – show Bug introduced 2018-02-14 14:14 UTC by Report Bug Copy Issue Report Due to PHP Bug #53727, `is_subclass_of` returns inconsistent results on some PHP versions for interfaces; you could instead use `ReflectionClass::implementsInterface`. Loading history...
305		throw new UnserializeException(sprintf('Class "%s" does not implement ISerializable', $variant->class_FQDN));
306		}
307	3	if ($safe and !is_subclass_of($variant->class_FQDN, 'NokitaKaze\\Serializer\\ISafeSerializable')) {
		1 ignored issue – show Bug introduced 2018-02-14 14:14 UTC by Report Bug Copy Issue Report Due to PHP Bug #53727, `is_subclass_of` returns inconsistent results on some PHP versions for interfaces; you could instead use `ReflectionClass::implementsInterface`. Loading history...
308		// Не поддерживает safe-десериализацию
309	1	return null;
310		}
311
312		/**
313		* @var ISerializable $class
314		*/
315	2	$class = $variant->class_FQDN;
316
317	2	return $class::ns_unserialize($variant);
318		}
319
320		/**
321		* @param Variant\|boolean\|null\|object $variant
322		* @param boolean $safe
323		*
324		* @return mixed
325		* @throws UnserializeException
326		*/
327	22	public static function unserialize_variant_to_value($variant, $safe) {
328	22	if (is_null($variant)) {
329	2	return null;
330	21	} elseif (is_bool($variant)) {
331	3	return $variant;
332		} else {
333	21	switch ($variant->type) {
334	21	case self::TYPE_INT:
335	4	return $variant->value;
336	20	case self::TYPE_DOUBLE:
337	8	return \unserialize($variant->value);
338	14	case self::TYPE_STRING:
339	5	return self::unserialize_string($variant);
340	12	case self::TYPE_ARRAY_INDEX:
341	3	return self::unserialize_array_index($variant, $safe);
342	9	case self::TYPE_ARRAY_KEY_VALUE:
343	2	return self::unserialize_array_key_value($variant, $safe);
344	7	case self::TYPE_OBJECT_KEY_VALUE:
345	4	return (object) self::unserialize_array_key_value($variant, $safe);
346	3	case self::TYPE_SERIALIZABLE:
347	3	return self::unserialize_object($variant, $safe);
348		default:
349		throw new UnserializeException('Malformed type '.$variant->type, 1);
350		}
351		}
352		}
353
354		}
355
356		?>
		0 ignored issues – show Best Practice introduced 2018-02-14 13:01 UTC by Report Bug Copy Issue Report It is not recommended to use PHP's closing tag `?>` in files other than templates. Using a closing tag in PHP files that only contain PHP code is not recommended as you might accidentally add whitespace after the closing tag which would then be output by PHP. This can cause severe problems, for example headers cannot be sent anymore. A simple precaution is to leave off the closing tag as it is not required, and it also has no negative effects whatsoever. Loading history...

nokitakaze / php-serializer

Push — developer ( e69f4b...3ddfd0 )

Serializer::unserialize() A

Complexity

Size

Duplication

Code Coverage

Importance

Duplication Side-by-Side

Filter issues like