blob: ac55da5518d7e9364ea561053210a451cfa7631c [file] [log] [blame]
Matthias Andreas Benkard7b2a3a12021-08-16 10:57:25 +02001<?php
2
3/*
4 * This file is part of the Symfony package.
5 *
6 * (c) Fabien Potencier <fabien@symfony.com>
7 *
8 * For the full copyright and license information, please view the LICENSE
9 * file that was distributed with this source code.
10 */
11
12namespace Symfony\Component\VarDumper\Cloner;
13
14use Symfony\Component\VarDumper\Caster\Caster;
15use Symfony\Component\VarDumper\Exception\ThrowingCasterException;
16
17/**
18 * AbstractCloner implements a generic caster mechanism for objects and resources.
19 *
20 * @author Nicolas Grekas <p@tchwork.com>
21 */
22abstract class AbstractCloner implements ClonerInterface
23{
24 public static $defaultCasters = [
25 '__PHP_Incomplete_Class' => ['Symfony\Component\VarDumper\Caster\Caster', 'castPhpIncompleteClass'],
26
27 'Symfony\Component\VarDumper\Caster\CutStub' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'castStub'],
28 'Symfony\Component\VarDumper\Caster\CutArrayStub' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'castCutArray'],
29 'Symfony\Component\VarDumper\Caster\ConstStub' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'castStub'],
30 'Symfony\Component\VarDumper\Caster\EnumStub' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'castEnum'],
31
32 'Closure' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castClosure'],
33 'Generator' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castGenerator'],
34 'ReflectionType' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castType'],
35 'ReflectionAttribute' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castAttribute'],
36 'ReflectionGenerator' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castReflectionGenerator'],
37 'ReflectionClass' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castClass'],
38 'ReflectionClassConstant' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castClassConstant'],
39 'ReflectionFunctionAbstract' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castFunctionAbstract'],
40 'ReflectionMethod' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castMethod'],
41 'ReflectionParameter' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castParameter'],
42 'ReflectionProperty' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castProperty'],
43 'ReflectionReference' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castReference'],
44 'ReflectionExtension' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castExtension'],
45 'ReflectionZendExtension' => ['Symfony\Component\VarDumper\Caster\ReflectionCaster', 'castZendExtension'],
46
47 'Doctrine\Common\Persistence\ObjectManager' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],
48 'Doctrine\Common\Proxy\Proxy' => ['Symfony\Component\VarDumper\Caster\DoctrineCaster', 'castCommonProxy'],
49 'Doctrine\ORM\Proxy\Proxy' => ['Symfony\Component\VarDumper\Caster\DoctrineCaster', 'castOrmProxy'],
50 'Doctrine\ORM\PersistentCollection' => ['Symfony\Component\VarDumper\Caster\DoctrineCaster', 'castPersistentCollection'],
51 'Doctrine\Persistence\ObjectManager' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],
52
53 'DOMException' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castException'],
54 'DOMStringList' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castLength'],
55 'DOMNameList' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castLength'],
56 'DOMImplementation' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castImplementation'],
57 'DOMImplementationList' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castLength'],
58 'DOMNode' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castNode'],
59 'DOMNameSpaceNode' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castNameSpaceNode'],
60 'DOMDocument' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castDocument'],
61 'DOMNodeList' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castLength'],
62 'DOMNamedNodeMap' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castLength'],
63 'DOMCharacterData' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castCharacterData'],
64 'DOMAttr' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castAttr'],
65 'DOMElement' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castElement'],
66 'DOMText' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castText'],
67 'DOMTypeinfo' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castTypeinfo'],
68 'DOMDomError' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castDomError'],
69 'DOMLocator' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castLocator'],
70 'DOMDocumentType' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castDocumentType'],
71 'DOMNotation' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castNotation'],
72 'DOMEntity' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castEntity'],
73 'DOMProcessingInstruction' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castProcessingInstruction'],
74 'DOMXPath' => ['Symfony\Component\VarDumper\Caster\DOMCaster', 'castXPath'],
75
76 'XMLReader' => ['Symfony\Component\VarDumper\Caster\XmlReaderCaster', 'castXmlReader'],
77
78 'ErrorException' => ['Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castErrorException'],
79 'Exception' => ['Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castException'],
80 'Error' => ['Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castError'],
81 'Symfony\Bridge\Monolog\Logger' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],
82 'Symfony\Component\DependencyInjection\ContainerInterface' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],
83 'Symfony\Component\EventDispatcher\EventDispatcherInterface' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],
84 'Symfony\Component\HttpClient\CurlHttpClient' => ['Symfony\Component\VarDumper\Caster\SymfonyCaster', 'castHttpClient'],
85 'Symfony\Component\HttpClient\NativeHttpClient' => ['Symfony\Component\VarDumper\Caster\SymfonyCaster', 'castHttpClient'],
86 'Symfony\Component\HttpClient\Response\CurlResponse' => ['Symfony\Component\VarDumper\Caster\SymfonyCaster', 'castHttpClientResponse'],
87 'Symfony\Component\HttpClient\Response\NativeResponse' => ['Symfony\Component\VarDumper\Caster\SymfonyCaster', 'castHttpClientResponse'],
88 'Symfony\Component\HttpFoundation\Request' => ['Symfony\Component\VarDumper\Caster\SymfonyCaster', 'castRequest'],
89 'Symfony\Component\VarDumper\Exception\ThrowingCasterException' => ['Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castThrowingCasterException'],
90 'Symfony\Component\VarDumper\Caster\TraceStub' => ['Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castTraceStub'],
91 'Symfony\Component\VarDumper\Caster\FrameStub' => ['Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castFrameStub'],
92 'Symfony\Component\VarDumper\Cloner\AbstractCloner' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],
93 'Symfony\Component\ErrorHandler\Exception\SilencedErrorContext' => ['Symfony\Component\VarDumper\Caster\ExceptionCaster', 'castSilencedErrorContext'],
94
95 'Imagine\Image\ImageInterface' => ['Symfony\Component\VarDumper\Caster\ImagineCaster', 'castImage'],
96
97 'Ramsey\Uuid\UuidInterface' => ['Symfony\Component\VarDumper\Caster\UuidCaster', 'castRamseyUuid'],
98
99 'ProxyManager\Proxy\ProxyInterface' => ['Symfony\Component\VarDumper\Caster\ProxyManagerCaster', 'castProxy'],
100 'PHPUnit_Framework_MockObject_MockObject' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],
101 'PHPUnit\Framework\MockObject\MockObject' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],
102 'PHPUnit\Framework\MockObject\Stub' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],
103 'Prophecy\Prophecy\ProphecySubjectInterface' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],
104 'Mockery\MockInterface' => ['Symfony\Component\VarDumper\Caster\StubCaster', 'cutInternals'],
105
106 'PDO' => ['Symfony\Component\VarDumper\Caster\PdoCaster', 'castPdo'],
107 'PDOStatement' => ['Symfony\Component\VarDumper\Caster\PdoCaster', 'castPdoStatement'],
108
109 'AMQPConnection' => ['Symfony\Component\VarDumper\Caster\AmqpCaster', 'castConnection'],
110 'AMQPChannel' => ['Symfony\Component\VarDumper\Caster\AmqpCaster', 'castChannel'],
111 'AMQPQueue' => ['Symfony\Component\VarDumper\Caster\AmqpCaster', 'castQueue'],
112 'AMQPExchange' => ['Symfony\Component\VarDumper\Caster\AmqpCaster', 'castExchange'],
113 'AMQPEnvelope' => ['Symfony\Component\VarDumper\Caster\AmqpCaster', 'castEnvelope'],
114
115 'ArrayObject' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castArrayObject'],
116 'ArrayIterator' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castArrayIterator'],
117 'SplDoublyLinkedList' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castDoublyLinkedList'],
118 'SplFileInfo' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castFileInfo'],
119 'SplFileObject' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castFileObject'],
120 'SplHeap' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castHeap'],
121 'SplObjectStorage' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castObjectStorage'],
122 'SplPriorityQueue' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castHeap'],
123 'OuterIterator' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castOuterIterator'],
124 'WeakReference' => ['Symfony\Component\VarDumper\Caster\SplCaster', 'castWeakReference'],
125
126 'Redis' => ['Symfony\Component\VarDumper\Caster\RedisCaster', 'castRedis'],
127 'RedisArray' => ['Symfony\Component\VarDumper\Caster\RedisCaster', 'castRedisArray'],
128 'RedisCluster' => ['Symfony\Component\VarDumper\Caster\RedisCaster', 'castRedisCluster'],
129
130 'DateTimeInterface' => ['Symfony\Component\VarDumper\Caster\DateCaster', 'castDateTime'],
131 'DateInterval' => ['Symfony\Component\VarDumper\Caster\DateCaster', 'castInterval'],
132 'DateTimeZone' => ['Symfony\Component\VarDumper\Caster\DateCaster', 'castTimeZone'],
133 'DatePeriod' => ['Symfony\Component\VarDumper\Caster\DateCaster', 'castPeriod'],
134
135 'GMP' => ['Symfony\Component\VarDumper\Caster\GmpCaster', 'castGmp'],
136
137 'MessageFormatter' => ['Symfony\Component\VarDumper\Caster\IntlCaster', 'castMessageFormatter'],
138 'NumberFormatter' => ['Symfony\Component\VarDumper\Caster\IntlCaster', 'castNumberFormatter'],
139 'IntlTimeZone' => ['Symfony\Component\VarDumper\Caster\IntlCaster', 'castIntlTimeZone'],
140 'IntlCalendar' => ['Symfony\Component\VarDumper\Caster\IntlCaster', 'castIntlCalendar'],
141 'IntlDateFormatter' => ['Symfony\Component\VarDumper\Caster\IntlCaster', 'castIntlDateFormatter'],
142
143 'Memcached' => ['Symfony\Component\VarDumper\Caster\MemcachedCaster', 'castMemcached'],
144
145 'Ds\Collection' => ['Symfony\Component\VarDumper\Caster\DsCaster', 'castCollection'],
146 'Ds\Map' => ['Symfony\Component\VarDumper\Caster\DsCaster', 'castMap'],
147 'Ds\Pair' => ['Symfony\Component\VarDumper\Caster\DsCaster', 'castPair'],
148 'Symfony\Component\VarDumper\Caster\DsPairStub' => ['Symfony\Component\VarDumper\Caster\DsCaster', 'castPairStub'],
149
150 'CurlHandle' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castCurl'],
151 ':curl' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castCurl'],
152
153 ':dba' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castDba'],
154 ':dba persistent' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castDba'],
155
156 'GdImage' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castGd'],
157 ':gd' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castGd'],
158
159 ':mysql link' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castMysqlLink'],
160 ':pgsql large object' => ['Symfony\Component\VarDumper\Caster\PgSqlCaster', 'castLargeObject'],
161 ':pgsql link' => ['Symfony\Component\VarDumper\Caster\PgSqlCaster', 'castLink'],
162 ':pgsql link persistent' => ['Symfony\Component\VarDumper\Caster\PgSqlCaster', 'castLink'],
163 ':pgsql result' => ['Symfony\Component\VarDumper\Caster\PgSqlCaster', 'castResult'],
164 ':process' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castProcess'],
165 ':stream' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castStream'],
166
167 'OpenSSLCertificate' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castOpensslX509'],
168 ':OpenSSL X.509' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castOpensslX509'],
169
170 ':persistent stream' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castStream'],
171 ':stream-context' => ['Symfony\Component\VarDumper\Caster\ResourceCaster', 'castStreamContext'],
172
173 'XmlParser' => ['Symfony\Component\VarDumper\Caster\XmlResourceCaster', 'castXml'],
174 ':xml' => ['Symfony\Component\VarDumper\Caster\XmlResourceCaster', 'castXml'],
175
176 'RdKafka' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castRdKafka'],
177 'RdKafka\Conf' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castConf'],
178 'RdKafka\KafkaConsumer' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castKafkaConsumer'],
179 'RdKafka\Metadata\Broker' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castBrokerMetadata'],
180 'RdKafka\Metadata\Collection' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castCollectionMetadata'],
181 'RdKafka\Metadata\Partition' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castPartitionMetadata'],
182 'RdKafka\Metadata\Topic' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castTopicMetadata'],
183 'RdKafka\Message' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castMessage'],
184 'RdKafka\Topic' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castTopic'],
185 'RdKafka\TopicPartition' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castTopicPartition'],
186 'RdKafka\TopicConf' => ['Symfony\Component\VarDumper\Caster\RdKafkaCaster', 'castTopicConf'],
187 ];
188
189 protected $maxItems = 2500;
190 protected $maxString = -1;
191 protected $minDepth = 1;
192
193 private $casters = [];
194 private $prevErrorHandler;
195 private $classInfo = [];
196 private $filter = 0;
197
198 /**
199 * @param callable[]|null $casters A map of casters
200 *
201 * @see addCasters
202 */
203 public function __construct(array $casters = null)
204 {
205 if (null === $casters) {
206 $casters = static::$defaultCasters;
207 }
208 $this->addCasters($casters);
209 }
210
211 /**
212 * Adds casters for resources and objects.
213 *
214 * Maps resources or objects types to a callback.
215 * Types are in the key, with a callable caster for value.
216 * Resource types are to be prefixed with a `:`,
217 * see e.g. static::$defaultCasters.
218 *
219 * @param callable[] $casters A map of casters
220 */
221 public function addCasters(array $casters)
222 {
223 foreach ($casters as $type => $callback) {
224 $this->casters[$type][] = $callback;
225 }
226 }
227
228 /**
229 * Sets the maximum number of items to clone past the minimum depth in nested structures.
230 */
231 public function setMaxItems(int $maxItems)
232 {
233 $this->maxItems = $maxItems;
234 }
235
236 /**
237 * Sets the maximum cloned length for strings.
238 */
239 public function setMaxString(int $maxString)
240 {
241 $this->maxString = $maxString;
242 }
243
244 /**
245 * Sets the minimum tree depth where we are guaranteed to clone all the items. After this
246 * depth is reached, only setMaxItems items will be cloned.
247 */
248 public function setMinDepth(int $minDepth)
249 {
250 $this->minDepth = $minDepth;
251 }
252
253 /**
254 * Clones a PHP variable.
255 *
256 * @param mixed $var Any PHP variable
257 * @param int $filter A bit field of Caster::EXCLUDE_* constants
258 *
259 * @return Data The cloned variable represented by a Data object
260 */
261 public function cloneVar($var, int $filter = 0)
262 {
263 $this->prevErrorHandler = set_error_handler(function ($type, $msg, $file, $line, $context = []) {
264 if (\E_RECOVERABLE_ERROR === $type || \E_USER_ERROR === $type) {
265 // Cloner never dies
266 throw new \ErrorException($msg, 0, $type, $file, $line);
267 }
268
269 if ($this->prevErrorHandler) {
270 return ($this->prevErrorHandler)($type, $msg, $file, $line, $context);
271 }
272
273 return false;
274 });
275 $this->filter = $filter;
276
277 if ($gc = gc_enabled()) {
278 gc_disable();
279 }
280 try {
281 return new Data($this->doClone($var));
282 } finally {
283 if ($gc) {
284 gc_enable();
285 }
286 restore_error_handler();
287 $this->prevErrorHandler = null;
288 }
289 }
290
291 /**
292 * Effectively clones the PHP variable.
293 *
294 * @param mixed $var Any PHP variable
295 *
296 * @return array The cloned variable represented in an array
297 */
298 abstract protected function doClone($var);
299
300 /**
301 * Casts an object to an array representation.
302 *
303 * @param bool $isNested True if the object is nested in the dumped structure
304 *
305 * @return array The object casted as array
306 */
307 protected function castObject(Stub $stub, bool $isNested)
308 {
309 $obj = $stub->value;
310 $class = $stub->class;
311
312 if (\PHP_VERSION_ID < 80000 ? "\0" === ($class[15] ?? null) : str_contains($class, "@anonymous\0")) {
313 $stub->class = get_debug_type($obj);
314 }
315 if (isset($this->classInfo[$class])) {
316 [$i, $parents, $hasDebugInfo, $fileInfo] = $this->classInfo[$class];
317 } else {
318 $i = 2;
319 $parents = [$class];
320 $hasDebugInfo = method_exists($class, '__debugInfo');
321
322 foreach (class_parents($class) as $p) {
323 $parents[] = $p;
324 ++$i;
325 }
326 foreach (class_implements($class) as $p) {
327 $parents[] = $p;
328 ++$i;
329 }
330 $parents[] = '*';
331
332 $r = new \ReflectionClass($class);
333 $fileInfo = $r->isInternal() || $r->isSubclassOf(Stub::class) ? [] : [
334 'file' => $r->getFileName(),
335 'line' => $r->getStartLine(),
336 ];
337
338 $this->classInfo[$class] = [$i, $parents, $hasDebugInfo, $fileInfo];
339 }
340
341 $stub->attr += $fileInfo;
342 $a = Caster::castObject($obj, $class, $hasDebugInfo, $stub->class);
343
344 try {
345 while ($i--) {
346 if (!empty($this->casters[$p = $parents[$i]])) {
347 foreach ($this->casters[$p] as $callback) {
348 $a = $callback($obj, $a, $stub, $isNested, $this->filter);
349 }
350 }
351 }
352 } catch (\Exception $e) {
353 $a = [(Stub::TYPE_OBJECT === $stub->type ? Caster::PREFIX_VIRTUAL : '').'⚠' => new ThrowingCasterException($e)] + $a;
354 }
355
356 return $a;
357 }
358
359 /**
360 * Casts a resource to an array representation.
361 *
362 * @param bool $isNested True if the object is nested in the dumped structure
363 *
364 * @return array The resource casted as array
365 */
366 protected function castResource(Stub $stub, bool $isNested)
367 {
368 $a = [];
369 $res = $stub->value;
370 $type = $stub->class;
371
372 try {
373 if (!empty($this->casters[':'.$type])) {
374 foreach ($this->casters[':'.$type] as $callback) {
375 $a = $callback($res, $a, $stub, $isNested, $this->filter);
376 }
377 }
378 } catch (\Exception $e) {
379 $a = [(Stub::TYPE_OBJECT === $stub->type ? Caster::PREFIX_VIRTUAL : '').'⚠' => new ThrowingCasterException($e)] + $a;
380 }
381
382 return $a;
383 }
384}