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kubio / vendor / symfony / var-dumper / Caster / ExceptionCaster.php

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ExceptionCaster.php

389 lines

1	<?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
12	namespace Symfony\Component\VarDumper\Caster;
13
14	use Symfony\Component\ErrorHandler\Exception\SilencedErrorContext;
15	use Symfony\Component\VarDumper\Cloner\Stub;
16	use Symfony\Component\VarDumper\Exception\ThrowingCasterException;
17
18	/**
19	* Casts common Exception classes to array representation.
20	*
21	* @author Nicolas Grekas <p@tchwork.com>
22	*
23	* @final
24	*/
25	class ExceptionCaster
26	{
27	public static $srcContext = 1;
28	public static $traceArgs = true;
29	public static $errorTypes = [
30	\E_DEPRECATED => 'E_DEPRECATED',
31	\E_USER_DEPRECATED => 'E_USER_DEPRECATED',
32	\E_RECOVERABLE_ERROR => 'E_RECOVERABLE_ERROR',
33	\E_ERROR => 'E_ERROR',
34	\E_WARNING => 'E_WARNING',
35	\E_PARSE => 'E_PARSE',
36	\E_NOTICE => 'E_NOTICE',
37	\E_CORE_ERROR => 'E_CORE_ERROR',
38	\E_CORE_WARNING => 'E_CORE_WARNING',
39	\E_COMPILE_ERROR => 'E_COMPILE_ERROR',
40	\E_COMPILE_WARNING => 'E_COMPILE_WARNING',
41	\E_USER_ERROR => 'E_USER_ERROR',
42	\E_USER_WARNING => 'E_USER_WARNING',
43	\E_USER_NOTICE => 'E_USER_NOTICE',
44	2048 => 'E_STRICT',
45	];
46
47	private static $framesCache = [];
48
49	public static function castError(\Error $e, array $a, Stub $stub, bool $isNested, int $filter = 0)
50	{
51	return self::filterExceptionArray($stub->class, $a, "\0Error\0", $filter);
52	}
53
54	public static function castException(\Exception $e, array $a, Stub $stub, bool $isNested, int $filter = 0)
55	{
56	return self::filterExceptionArray($stub->class, $a, "\0Exception\0", $filter);
57	}
58
59	public static function castErrorException(\ErrorException $e, array $a, Stub $stub, bool $isNested)
60	{
61	if (isset($a[$s = Caster::PREFIX_PROTECTED.'severity'], self::$errorTypes[$a[$s]])) {
62	$a[$s] = new ConstStub(self::$errorTypes[$a[$s]], $a[$s]);
63	}
64
65	return $a;
66	}
67
68	public static function castThrowingCasterException(ThrowingCasterException $e, array $a, Stub $stub, bool $isNested)
69	{
70	$trace = Caster::PREFIX_VIRTUAL.'trace';
71	$prefix = Caster::PREFIX_PROTECTED;
72	$xPrefix = "\0Exception\0";
73
74	if (isset($a[$xPrefix.'previous'], $a[$trace]) && $a[$xPrefix.'previous'] instanceof \Exception) {
75	$b = (array) $a[$xPrefix.'previous'];
76	$class = get_debug_type($a[$xPrefix.'previous']);
77	self::traceUnshift($b[$xPrefix.'trace'], $class, $b[$prefix.'file'], $b[$prefix.'line']);
78	$a[$trace] = new TraceStub($b[$xPrefix.'trace'], false, 0, -\count($a[$trace]->value));
79	}
80
81	unset($a[$xPrefix.'previous'], $a[$prefix.'code'], $a[$prefix.'file'], $a[$prefix.'line']);
82
83	return $a;
84	}
85
86	public static function castSilencedErrorContext(SilencedErrorContext $e, array $a, Stub $stub, bool $isNested)
87	{
88	$sPrefix = "\0".SilencedErrorContext::class."\0";
89
90	if (!isset($a[$s = $sPrefix.'severity'])) {
91	return $a;
92	}
93
94	if (isset(self::$errorTypes[$a[$s]])) {
95	$a[$s] = new ConstStub(self::$errorTypes[$a[$s]], $a[$s]);
96	}
97
98	$trace = [[
99	'file' => $a[$sPrefix.'file'],
100	'line' => $a[$sPrefix.'line'],
101	]];
102
103	if (isset($a[$sPrefix.'trace'])) {
104	$trace = array_merge($trace, $a[$sPrefix.'trace']);
105	}
106
107	unset($a[$sPrefix.'file'], $a[$sPrefix.'line'], $a[$sPrefix.'trace']);
108	$a[Caster::PREFIX_VIRTUAL.'trace'] = new TraceStub($trace, self::$traceArgs);
109
110	return $a;
111	}
112
113	public static function castTraceStub(TraceStub $trace, array $a, Stub $stub, bool $isNested)
114	{
115	if (!$isNested) {
116	return $a;
117	}
118	$stub->class = '';
119	$stub->handle = 0;
120	$frames = $trace->value;
121	$prefix = Caster::PREFIX_VIRTUAL;
122
123	$a = [];
124	$j = \count($frames);
125	if (0 > $i = $trace->sliceOffset) {
126	$i = max(0, $j + $i);
127	}
128	if (!isset($trace->value[$i])) {
129	return [];
130	}
131	$lastCall = isset($frames[$i]['function']) ? (isset($frames[$i]['class']) ? $frames[0]['class'].$frames[$i]['type'] : '').$frames[$i]['function'].'()' : '';
132	$frames[] = ['function' => ''];
133	$collapse = false;
134
135	for ($j += $trace->numberingOffset - $i++; isset($frames[$i]); ++$i, --$j) {
136	$f = $frames[$i];
137	$call = isset($f['function']) ? (isset($f['class']) ? $f['class'].$f['type'] : '').$f['function'] : '???';
138
139	$frame = new FrameStub(
140	[
141	'object' => $f['object'] ?? null,
142	'class' => $f['class'] ?? null,
143	'type' => $f['type'] ?? null,
144	'function' => $f['function'] ?? null,
145	] + $frames[$i - 1],
146	false,
147	true
148	);
149	$f = self::castFrameStub($frame, [], $frame, true);
150	if (isset($f[$prefix.'src'])) {
151	foreach ($f[$prefix.'src']->value as $label => $frame) {
152	if (str_starts_with($label, "\0~collapse=0")) {
153	if ($collapse) {
154	$label = substr_replace($label, '1', 11, 1);
155	} else {
156	$collapse = true;
157	}
158	}
159	$label = substr_replace($label, "title=Stack level $j.&", 2, 0);
160	}
161	$f = $frames[$i - 1];
162	if ($trace->keepArgs && !empty($f['args']) && $frame instanceof EnumStub) {
163	$frame->value['arguments'] = new ArgsStub($f['args'], $f['function'] ?? null, $f['class'] ?? null);
164	}
165	} elseif ('???' !== $lastCall) {
166	$label = new ClassStub($lastCall);
167	if (isset($label->attr['ellipsis'])) {
168	$label->attr['ellipsis'] += 2;
169	$label = substr_replace($prefix, "ellipsis-type=class&ellipsis={$label->attr['ellipsis']}&ellipsis-tail=1&title=Stack level $j.", 2, 0).$label->value.'()';
170	} else {
171	$label = substr_replace($prefix, "title=Stack level $j.", 2, 0).$label->value.'()';
172	}
173	} else {
174	$label = substr_replace($prefix, "title=Stack level $j.", 2, 0).$lastCall;
175	}
176	$a[substr_replace($label, sprintf('separator=%s&', $frame instanceof EnumStub ? ' ' : ':'), 2, 0)] = $frame;
177
178	$lastCall = $call;
179	}
180	if (null !== $trace->sliceLength) {
181	$a = \array_slice($a, 0, $trace->sliceLength, true);
182	}
183
184	return $a;
185	}
186
187	public static function castFrameStub(FrameStub $frame, array $a, Stub $stub, bool $isNested)
188	{
189	if (!$isNested) {
190	return $a;
191	}
192	$f = $frame->value;
193	$prefix = Caster::PREFIX_VIRTUAL;
194
195	if (isset($f['file'], $f['line'])) {
196	$cacheKey = $f;
197	unset($cacheKey['object'], $cacheKey['args']);
198	$cacheKey[] = self::$srcContext;
199	$cacheKey = implode('-', $cacheKey);
200
201	if (isset(self::$framesCache[$cacheKey])) {
202	$a[$prefix.'src'] = self::$framesCache[$cacheKey];
203	} else {
204	if (preg_match('/$(\d+)$(?:$[\da-f]{32}$)? : (?:eval\'d code\|runtime-created function)$/', $f['file'], $match)) {
205	$f['file'] = substr($f['file'], 0, -\strlen($match[0]));
206	$f['line'] = (int) $match[1];
207	}
208	$src = $f['line'];
209	$srcKey = $f['file'];
210	$ellipsis = new LinkStub($srcKey, 0);
211	$srcAttr = 'collapse='.(int) $ellipsis->inVendor;
212	$ellipsisTail = $ellipsis->attr['ellipsis-tail'] ?? 0;
213	$ellipsis = $ellipsis->attr['ellipsis'] ?? 0;
214
215	if (is_file($f['file']) && 0 <= self::$srcContext) {
216	if (!empty($f['class']) && (is_subclass_of($f['class'], 'Twig\Template') \|\| is_subclass_of($f['class'], 'Twig_Template')) && method_exists($f['class'], 'getDebugInfo')) {
217	$template = null;
218	if (isset($f['object'])) {
219	$template = $f['object'];
220	} elseif ((new \ReflectionClass($f['class']))->isInstantiable()) {
221	$template = unserialize(sprintf('O:%d:"%s":0:{}', \strlen($f['class']), $f['class']));
222	}
223	if (null !== $template) {
224	$ellipsis = 0;
225	$templateSrc = method_exists($template, 'getSourceContext') ? $template->getSourceContext()->getCode() : (method_exists($template, 'getSource') ? $template->getSource() : '');
226	$templateInfo = $template->getDebugInfo();
227	if (isset($templateInfo[$f['line']])) {
228	if (!method_exists($template, 'getSourceContext') \|\| !is_file($templatePath = $template->getSourceContext()->getPath())) {
229	$templatePath = null;
230	}
231	if ($templateSrc) {
232	$src = self::extractSource($templateSrc, $templateInfo[$f['line']], self::$srcContext, 'twig', $templatePath, $f);
233	$srcKey = ($templatePath ?: $template->getTemplateName()).':'.$templateInfo[$f['line']];
234	}
235	}
236	}
237	}
238	if ($srcKey == $f['file']) {
239	$src = self::extractSource(file_get_contents($f['file']), $f['line'], self::$srcContext, 'php', $f['file'], $f);
240	$srcKey .= ':'.$f['line'];
241	if ($ellipsis) {
242	$ellipsis += 1 + \strlen($f['line']);
243	}
244	}
245	$srcAttr .= sprintf('&separator= &file=%s&line=%d', rawurlencode($f['file']), $f['line']);
246	} else {
247	$srcAttr .= '&separator=:';
248	}
249	$srcAttr .= $ellipsis ? '&ellipsis-type=path&ellipsis='.$ellipsis.'&ellipsis-tail='.$ellipsisTail : '';
250	self::$framesCache[$cacheKey] = $a[$prefix.'src'] = new EnumStub(["\0~$srcAttr\0$srcKey" => $src]);
251	}
252	}
253
254	unset($a[$prefix.'args'], $a[$prefix.'line'], $a[$prefix.'file']);
255	if ($frame->inTraceStub) {
256	unset($a[$prefix.'class'], $a[$prefix.'type'], $a[$prefix.'function']);
257	}
258	foreach ($a as $k => $v) {
259	if (!$v) {
260	unset($a[$k]);
261	}
262	}
263	if ($frame->keepArgs && !empty($f['args'])) {
264	$a[$prefix.'arguments'] = new ArgsStub($f['args'], $f['function'], $f['class']);
265	}
266
267	return $a;
268	}
269
270	private static function filterExceptionArray(string $xClass, array $a, string $xPrefix, int $filter): array
271	{
272	if (isset($a[$xPrefix.'trace'])) {
273	$trace = $a[$xPrefix.'trace'];
274	unset($a[$xPrefix.'trace']); // Ensures the trace is always last
275	} else {
276	$trace = [];
277	}
278
279	if (!($filter & Caster::EXCLUDE_VERBOSE) && $trace) {
280	if (isset($a[Caster::PREFIX_PROTECTED.'file'], $a[Caster::PREFIX_PROTECTED.'line'])) {
281	self::traceUnshift($trace, $xClass, $a[Caster::PREFIX_PROTECTED.'file'], $a[Caster::PREFIX_PROTECTED.'line']);
282	}
283	$a[Caster::PREFIX_VIRTUAL.'trace'] = new TraceStub($trace, self::$traceArgs);
284	}
285	if (empty($a[$xPrefix.'previous'])) {
286	unset($a[$xPrefix.'previous']);
287	}
288	unset($a[$xPrefix.'string'], $a[Caster::PREFIX_DYNAMIC.'xdebug_message'], $a[Caster::PREFIX_DYNAMIC.'__destructorException']);
289
290	if (isset($a[Caster::PREFIX_PROTECTED.'message']) && str_contains($a[Caster::PREFIX_PROTECTED.'message'], "@anonymous\0")) {
291	$a[Caster::PREFIX_PROTECTED.'message'] = preg_replace_callback('/[a-zA-Z_\x7f-\xff][\\\\a-zA-Z0-9_\x7f-\xff]+@anonymous\x00.?\.php(?:0x?\|:[0-9]++\$)?[0-9a-fA-F]++/', function ($m) {
292	return class_exists($m[0], false) ? (get_parent_class($m[0]) ?: key(class_implements($m[0])) ?: 'class').'@anonymous' : $m[0];
293	}, $a[Caster::PREFIX_PROTECTED.'message']);
294	}
295
296	if (isset($a[Caster::PREFIX_PROTECTED.'file'], $a[Caster::PREFIX_PROTECTED.'line'])) {
297	$a[Caster::PREFIX_PROTECTED.'file'] = new LinkStub($a[Caster::PREFIX_PROTECTED.'file'], $a[Caster::PREFIX_PROTECTED.'line']);
298	}
299
300	return $a;
301	}
302
303	private static function traceUnshift(array &$trace, ?string $class, string $file, int $line): void
304	{
305	if (isset($trace[0]['file'], $trace[0]['line']) && $trace[0]['file'] === $file && $trace[0]['line'] === $line) {
306	return;
307	}
308	array_unshift($trace, [
309	'function' => $class ? 'new '.$class : null,
310	'file' => $file,
311	'line' => $line,
312	]);
313	}
314
315	private static function extractSource(string $srcLines, int $line, int $srcContext, string $lang, ?string $file, array $frame): EnumStub
316	{
317	$srcLines = explode("\n", $srcLines);
318	$src = [];
319
320	for ($i = $line - 1 - $srcContext; $i <= $line - 1 + $srcContext; ++$i) {
321	$src[] = ($srcLines[$i] ?? '')."\n";
322	}
323
324	if ($frame['function'] ?? false) {
325	$stub = new CutStub(new \stdClass());
326	$stub->class = (isset($frame['class']) ? $frame['class'].$frame['type'] : '').$frame['function'];
327	$stub->type = Stub::TYPE_OBJECT;
328	$stub->attr['cut_hash'] = true;
329	$stub->attr['file'] = $frame['file'];
330	$stub->attr['line'] = $frame['line'];
331
332	try {
333	$caller = isset($frame['class']) ? new \ReflectionMethod($frame['class'], $frame['function']) : new \ReflectionFunction($frame['function']);
334	$stub->class .= ReflectionCaster::getSignature(ReflectionCaster::castFunctionAbstract($caller, [], $stub, true, Caster::EXCLUDE_VERBOSE));
335
336	if ($f = $caller->getFileName()) {
337	$stub->attr['file'] = $f;
338	$stub->attr['line'] = $caller->getStartLine();
339	}
340	} catch (\ReflectionException $e) {
341	// ignore fake class/function
342	}
343
344	$srcLines = ["\0~separator=\0" => $stub];
345	} else {
346	$stub = null;
347	$srcLines = [];
348	}
349
350	$ltrim = 0;
351	do {
352	$pad = null;
353	for ($i = $srcContext << 1; $i >= 0; --$i) {
354	if (isset($src[$i][$ltrim]) && "\r" !== ($c = $src[$i][$ltrim]) && "\n" !== $c) {
355	if (null === $pad) {
356	$pad = $c;
357	}
358	if ((' ' !== $c && "\t" !== $c) \|\| $pad !== $c) {
359	break;
360	}
361	}
362	}
363	++$ltrim;
364	} while (0 > $i && null !== $pad);
365
366	--$ltrim;
367
368	foreach ($src as $i => $c) {
369	if ($ltrim) {
370	$c = isset($c[$ltrim]) && "\r" !== $c[$ltrim] ? substr($c, $ltrim) : ltrim($c, " \t");
371	}
372	$c = substr($c, 0, -1);
373	if ($i !== $srcContext) {
374	$c = new ConstStub('default', $c);
375	} else {
376	$c = new ConstStub($c, $stub ? 'in '.$stub->class : '');
377	if (null !== $file) {
378	$c->attr['file'] = $file;
379	$c->attr['line'] = $line;
380	}
381	}
382	$c->attr['lang'] = $lang;
383	$srcLines[sprintf("\0~separator=› &%d\0", $i + $line - $srcContext)] = $c;
384	}
385
386	return new EnumStub($srcLines);
387	}
388	}
389