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FlattenException.php
001 <?php
002
003 /*
004 * This file is part of the Symfony package.
005 *
006 * (c) Fabien Potencier <fabien@symfony.com>
007 *
008 * For the full copyright and license information, please view the LICENSE
009 * file that was distributed with this source code.
010 */
011
012 namespace Symfony\Component\Debug\Exception;
013
014 use Symfony\Component\HttpFoundation\Exception\RequestExceptionInterface;
015 use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;
016
017 /**
018 * FlattenException wraps a PHP Exception to be able to serialize it.
019 *
020 * Basically, this class removes all objects from the trace.
021 *
022 * @author Fabien Potencier <fabien@symfony.com>
023 */
024 class FlattenException
025 {
026 private $message;
027 private $code;
028 private $previous;
029 private $trace;
030 private $class;
031 private $statusCode;
032 private $headers;
033 private $file;
034 private $line;
035
036 public static function create(\Exception $exception, $statusCode = null, array $headers = [])
037 {
038 $e = new static();
039 $e->setMessage($exception->getMessage());
040 $e->setCode($exception->getCode());
041
042 if ($exception instanceof HttpExceptionInterface) {
043 $statusCode = $exception->getStatusCode();
044 $headers = array_merge($headers, $exception->getHeaders());
045 } elseif ($exception instanceof RequestExceptionInterface) {
046 $statusCode = 400;
047 }
048
049 if (null === $statusCode) {
050 $statusCode = 500;
051 }
052
053 $e->setStatusCode($statusCode);
054 $e->setHeaders($headers);
055 $e->setTraceFromException($exception);
056 $e->setClass(\get_class($exception));
057 $e->setFile($exception->getFile());
058 $e->setLine($exception->getLine());
059
060 $previous = $exception->getPrevious();
061
062 if ($previous instanceof \Exception) {
063 $e->setPrevious(static::create($previous));
064 } elseif ($previous instanceof \Throwable) {
065 $e->setPrevious(static::create(new FatalThrowableError($previous)));
066 }
067
068 return $e;
069 }
070
071 public function toArray()
072 {
073 $exceptions = [];
074 foreach (array_merge([$this], $this->getAllPrevious()) as $exception) {
075 $exceptions[] = [
076 'message' => $exception->getMessage(),
077 'class' => $exception->getClass(),
078 'trace' => $exception->getTrace(),
079 ];
080 }
081
082 return $exceptions;
083 }
084
085 public function getStatusCode()
086 {
087 return $this->statusCode;
088 }
089
090 public function setStatusCode($code)
091 {
092 $this->statusCode = $code;
093 }
094
095 public function getHeaders()
096 {
097 return $this->headers;
098 }
099
100 public function setHeaders(array $headers)
101 {
102 $this->headers = $headers;
103 }
104
105 public function getClass()
106 {
107 return $this->class;
108 }
109
110 public function setClass($class)
111 {
112 $this->class = $class;
113 }
114
115 public function getFile()
116 {
117 return $this->file;
118 }
119
120 public function setFile($file)
121 {
122 $this->file = $file;
123 }
124
125 public function getLine()
126 {
127 return $this->line;
128 }
129
130 public function setLine($line)
131 {
132 $this->line = $line;
133 }
134
135 public function getMessage()
136 {
137 return $this->message;
138 }
139
140 public function setMessage($message)
141 {
142 $this->message = $message;
143 }
144
145 public function getCode()
146 {
147 return $this->code;
148 }
149
150 public function setCode($code)
151 {
152 $this->code = $code;
153 }
154
155 public function getPrevious()
156 {
157 return $this->previous;
158 }
159
160 public function setPrevious(self $previous)
161 {
162 $this->previous = $previous;
163 }
164
165 public function getAllPrevious()
166 {
167 $exceptions = [];
168 $e = $this;
169 while ($e = $e->getPrevious()) {
170 $exceptions[] = $e;
171 }
172
173 return $exceptions;
174 }
175
176 public function getTrace()
177 {
178 return $this->trace;
179 }
180
181 public function setTraceFromException(\Exception $exception)
182 {
183 $this->setTrace($exception->getTrace(), $exception->getFile(), $exception->getLine());
184 }
185
186 public function setTrace($trace, $file, $line)
187 {
188 $this->trace = [];
189 $this->trace[] = [
190 'namespace' => '',
191 'short_class' => '',
192 'class' => '',
193 'type' => '',
194 'function' => '',
195 'file' => $file,
196 'line' => $line,
197 'args' => [],
198 ];
199 foreach ($trace as $entry) {
200 $class = '';
201 $namespace = '';
202 if (isset($entry['class'])) {
203 $parts = explode('\\', $entry['class']);
204 $class = array_pop($parts);
205 $namespace = implode('\\', $parts);
206 }
207
208 $this->trace[] = [
209 'namespace' => $namespace,
210 'short_class' => $class,
211 'class' => isset($entry['class']) ? $entry['class'] : '',
212 'type' => isset($entry['type']) ? $entry['type'] : '',
213 'function' => isset($entry['function']) ? $entry['function'] : null,
214 'file' => isset($entry['file']) ? $entry['file'] : null,
215 'line' => isset($entry['line']) ? $entry['line'] : null,
216 'args' => isset($entry['args']) ? $this->flattenArgs($entry['args']) : [],
217 ];
218 }
219 }
220
221 private function flattenArgs($args, $level = 0, &$count = 0)
222 {
223 $result = [];
224 foreach ($args as $key => $value) {
225 if (++$count > 1e4) {
226 return ['array', '*SKIPPED over 10000 entries*'];
227 }
228 if ($value instanceof \__PHP_Incomplete_Class) {
229 // is_object() returns false on PHP<=7.1
230 $result[$key] = ['incomplete-object', $this->getClassNameFromIncomplete($value)];
231 } elseif (\is_object($value)) {
232 $result[$key] = ['object', \get_class($value)];
233 } elseif (\is_array($value)) {
234 if ($level > 10) {
235 $result[$key] = ['array', '*DEEP NESTED ARRAY*'];
236 } else {
237 $result[$key] = ['array', $this->flattenArgs($value, $level + 1, $count)];
238 }
239 } elseif (null === $value) {
240 $result[$key] = ['null', null];
241 } elseif (\is_bool($value)) {
242 $result[$key] = ['boolean', $value];
243 } elseif (\is_int($value)) {
244 $result[$key] = ['integer', $value];
245 } elseif (\is_float($value)) {
246 $result[$key] = ['float', $value];
247 } elseif (\is_resource($value)) {
248 $result[$key] = ['resource', get_resource_type($value)];
249 } else {
250 $result[$key] = ['string', (string) $value];
251 }
252 }
253
254 return $result;
255 }
256
257 private function getClassNameFromIncomplete(\__PHP_Incomplete_Class $value)
258 {
259 $array = new \ArrayObject($value);
260
261 return $array['__PHP_Incomplete_Class_Name'];
262 }
263 }
264