Serializer::unserialize_array_key_value() - Code Metrics - nokitakaze/php-serializer - Measure and Improve Code Quality continuously with Scrutinizer

Serializer::unserialize_array_key_value() A
last analyzed 2018-02-14 14:51 UTC

↳ Parent: Serializer

Complexity

Conditions	3
Paths	3

Size

Total Lines	17
Code Lines	12

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	8
CRAP Score	3.3332

Importance

Changes

Metric	Value
dl	0
loc	17
ccs	8
cts	12
cp	0.6667
rs	9.4285
c	0
b	0
f	0
cc	3
eloc	12
nc	3
nop	2
crap	3.3332

<?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) {
            $is_valid = true;
            if ($text === 'null') {
                return null;
            }
            $data = json_decode($text);
            if (is_null($data)) {
                $is_valid = false;

                return null;
            }

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

                return null;
            }

            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 Придумать что делать с ресурсами
                return null;
            } elseif (is_bool($data)) {
                return $data;
            } elseif (is_null($data)) {
                return null;
            } else {
                return 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, $safe) {
            if (!isset($variant->class_FQDN)) {
                throw new UnserializeException('Variant does not contain field with FQDN', 3);
            }
            if (!class_exists($variant->class_FQDN)) {
                throw new UnserializeException(sprintf('Class "%s" does not exist', $variant->class_FQDN), 4);
            }
            if (!is_subclass_of($variant->class_FQDN, 'NokitaKaze\\Serializer\\ISerializable')) {
                throw new UnserializeException(sprintf('Class "%s" does not implement ISerializable', $variant->class_FQDN), 5);
            }
            if ($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 $depth
22		*
23		* @return string
24		*/
25	23	public static function serialize($data, $depth = self::DEFAULT_DEPTH) {
26	23	return json_encode(static::serialize_to_variant($data, $depth));
27		}
28
29		/**
30		* @param mixed $text
31		* @param boolean $is_valid
32		* @param boolean $safe
33		*
34		* @return mixed
35		*/
36	28	public static function unserialize($text, &$is_valid, $safe = true) {
37	28	$is_valid = true;
38	28	if ($text === 'null') {
39	1	return null;
40		}
41	27	$data = json_decode($text);
42	27	if (is_null($data)) {
43	1	$is_valid = false;
44
45	1	return null;
46		}
47
48		try {
49	26	$object = static::unserialize_variant_to_value($data, $safe);
50	4	} catch (UnserializeException $e) {
51	4	$is_valid = false;
52
53	4	return null;
54		}
55
56	22	return $object;
57		}
58
59		/**
60		* @param mixed $data
61		* @param integer $depth
62		*
63		* @return Variant\|object\|boolean\|null
64		*/
65	23	public static function serialize_to_variant($data, $depth = self::DEFAULT_DEPTH) {
66	23	if ($depth < 0) {
67	1	return null;
68		}
69	23	if (is_double($data)) {
70	8	return static::serialize_double($data);
71	17	} elseif (is_int($data)) {
72	4	return static::serialize_int($data);
73	16	} elseif (is_string($data)) {
74	5	return static::serialize_string($data);
75	14	} elseif (is_array($data) and static::is_indexed_array($data)) {
76	4	return static::serialize_indexed_array($data, $depth - 1);
77	12	} elseif (is_array($data)) {
78	2	return static::serialize_array_key_value($data, $depth - 1);
79	11	} elseif (is_object($data) and ($data instanceof ISerializable)) {
80		/**
81		* @var ISerializable $data
82		*/
83	3	return $data->ns_serialize();
84	8	} elseif (is_object($data)) {
85	4	return static::serialize_object_key_value($data);
86	4	} elseif (is_resource($data)) {
87		// @todo Придумать что делать с ресурсами
88		return null;
89	4	} elseif (is_bool($data)) {
90	3	return $data;
91	2	} elseif (is_null($data)) {
92	2	return null;
93		} else {
94		return null;
95		}
96		}
97
98		protected static $_binary_codes = [
99		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,
100		131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153,
101		154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176,
102		177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199,
103		200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222,
104		223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245,
105		246, 247, 248, 249, 250, 251, 252, 253, 254,
106		];
107
108		protected static $_binary_codes_flip = null;
109
110		/**
111		* @param string $value
112		*
113		* @return boolean
114		*/
115	19	public static function is_binary_string($value) {
116	19	if (is_null(self::$_binary_codes_flip)) {
117	1	self::$_binary_codes_flip = array_flip(self::$_binary_codes);
118		}
119
120		// @todo Оптимизировать через > & <
121	19	for ($i = 0; $i < strlen($value); $i++) {
122	19	$ord = ord(substr($value, $i, 1));
123	19	if (isset(self::$_binary_codes_flip[$ord])) {
124	1	return true;
125		}
126		}
127
128	19	return false;
129		}
130
131		/**
132		* @param double $value
133		*
134		* @return Variant\|object
135		*/
136	8	public static function serialize_double($value) {
137		return (object) [
138	8	'type' => self::TYPE_DOUBLE,
139	8	'value' => serialize($value),
140		];
141		}
142
143		/**
144		* @param integer $value
145		*
146		* @return Variant\|object
147		*/
148	4	public static function serialize_int($value) {
149		return (object) [
150	4	'type' => self::TYPE_INT,
151	4	'value' => $value,
152		];
153		}
154
155		/**
156		* @param array $value
157		* @param integer $depth
158		*
159		* @return Variant\|object
160		*/
161	4	public static function serialize_indexed_array(array $value, $depth) {
162	4	$output = [];
163	4	foreach ($value as $sub_value) {
164	3	$output[] = self::serialize_to_variant($sub_value, $depth - 1);
165		}
166
167		return (object) [
168	4	'type' => self::TYPE_ARRAY_INDEX,
169	4	'value' => $output,
170		];
171		}
172
173		/**
174		* @param array $value
175		* @param integer $depth
176		*
177		* @return Variant\|object
178		*/
179	2	public static function serialize_array_key_value(array $value, $depth) {
180	2	$output = [];
181	2	$keys = [];
182	2	foreach ($value as $key => $sub_value) {
183	2	$keys[] = self::serialize_to_variant($key, $depth - 1);
184	2	$output[] = self::serialize_to_variant($sub_value, $depth - 1);
185		}
186
187		return (object) [
188	2	'type' => self::TYPE_ARRAY_KEY_VALUE,
189	2	'value' => $output,
190	2	'keys' => $keys,
191		];
192		}
193
194		/**
195		* @param \stdClass\|object $value
196		*
197		* @return Variant\|object
198		*/
199	4	public static function serialize_object_key_value($value) {
200	4	$output = [];
201	4	$keys = [];
202
203	4	foreach (get_object_vars($value) as $key => $value) {
204	1	$keys[] = self::serialize_to_variant($key);
205	1	$output[] = self::serialize_to_variant($value);
206		}
207
208		return (object) [
209	4	'type' => self::TYPE_OBJECT_KEY_VALUE,
210	4	'value' => $output,
211	4	'keys' => $keys,
212		];
213		}
214
215		/**
216		* @param string $value
217		*
218		* @return Variant\|object
219		*/
220	5	public static function serialize_string($value) {
221		return (object) [
222	5	'type' => self::TYPE_STRING,
223	5	'value' => base64_encode(gzcompress($value)),
224		];
225		}
226
227		/**
228		* @param array $input
229		*
230		* @return boolean
231		*/
232	6	public static function is_indexed_array(array $input) {
233	6	if (empty($input)) {
234	1	return true;
235		}
236
237	5	$keys = array_keys($input);
238	5	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; $i++) { // calls count() just once } Loading history...
239	5	if ($keys[$i] !== $i) {
240	2	return false;
241		}
242		}
243
244	3	return true;
245		}
246
247		/**
248		* @param \stdClass\|Variant $variant
249		*
250		* @return string
251		*/
252	5	public static function unserialize_string($variant) {
253	5	return gzuncompress(base64_decode($variant->value));
254		}
255
256		/**
257		* @param \stdClass\|Variant $variant
258		* @param boolean $safe
259		*
260		* @return array
261		* @throws UnserializeException
262		*/
263	4	public static function unserialize_array_index($variant, $safe) {
264	4	$output = [];
265	4	foreach ($variant->value as $sub_value) {
266	3	$output[] = self::unserialize_variant_to_value($sub_value, $safe);
267		}
268
269	4	return $output;
270		}
271
272		/**
273		* @param \stdClass\|KeyValueVariant $variant
274		* @param boolean $safe
275		*
276		* @return array
277		* @throws UnserializeException
278		*/
279	6	public static function unserialize_array_key_value($variant, $safe) {
280	6	$count = count($variant->keys);
281	6	if ($count != count($variant->value)) {
282		throw new UnserializeException(sprintf('Array keys count (%d) does not equal value count (%d)',
283		$count,
284		count($variant->value)
285		), 2);
286		}
287
288	6	$output = [];
289	6	for ($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...
290	3	$output[self::unserialize_variant_to_value($variant->keys[$i], $safe)]
291	3	= self::unserialize_variant_to_value($variant->value[$i], $safe);
292		}
293
294	6	return $output;
295		}
296
297		/**
298		* @param SerializableVariant\|boolean\|null\|object $variant
299		* @param boolean $safe
300		*
301		* @return mixed
302		* @throws UnserializeException
303		*/
304	6	public static function unserialize_object($variant, $safe) {
305	6	if (!isset($variant->class_FQDN)) {
306	1	throw new UnserializeException('Variant does not contain field with FQDN', 3);
307		}
308	5	if (!class_exists($variant->class_FQDN)) {
309	1	throw new UnserializeException(sprintf('Class "%s" does not exist', $variant->class_FQDN), 4);
310		}
311	4	if (!is_subclass_of($variant->class_FQDN, 'NokitaKaze\\Serializer\\ISerializable')) {
312	1	throw new UnserializeException(sprintf('Class "%s" does not implement ISerializable', $variant->class_FQDN), 5);
313		}
314	3	if ($safe and !is_subclass_of($variant->class_FQDN, 'NokitaKaze\\Serializer\\ISafeSerializable')) {
315		// Не поддерживает safe-десериализацию
316	1	return null;
317		}
318
319		/**
320		* @var ISerializable $class
321		*/
322	2	$class = $variant->class_FQDN;
323
324	2	return $class::ns_unserialize($variant);
325		}
326
327		/**
328		* @param Variant\|boolean\|null\|object $variant
329		* @param boolean $safe
330		*
331		* @return mixed
332		* @throws UnserializeException
333		*/
334	26	public static function unserialize_variant_to_value($variant, $safe) {
335	26	if (is_null($variant)) {
336	2	return null;
337	26	} elseif (is_bool($variant)) {
338	3	return $variant;
339		} else {
340	26	switch ($variant->type) {
341	26	case self::TYPE_INT:
342	4	return $variant->value;
343	25	case self::TYPE_DOUBLE:
344	8	return \unserialize($variant->value);
345	19	case self::TYPE_STRING:
346	5	return self::unserialize_string($variant);
347	17	case self::TYPE_ARRAY_INDEX:
348	4	return self::unserialize_array_index($variant, $safe);
349	13	case self::TYPE_ARRAY_KEY_VALUE:
350	2	return self::unserialize_array_key_value($variant, $safe);
351	11	case self::TYPE_OBJECT_KEY_VALUE:
352	4	return (object) self::unserialize_array_key_value($variant, $safe);
353	7	case self::TYPE_SERIALIZABLE:
354	6	return self::unserialize_object($variant, $safe);
355		default:
356	1	throw new UnserializeException('Malformed type '.$variant->type, 1);
357		}
358		}
359		}
360
361		}
362
363		?>
		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

Serializer::unserialize_array_key_value() A last analyzed 2018-02-14 14:51 UTC

Complexity

Size

Duplication

Code Coverage

Importance

Duplication Side-by-Side

Filter issues like

Serializer::unserialize_array_key_value() A
last analyzed 2018-02-14 14:51 UTC