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  1: <?php
  2: 
  3: /**
  4:  * This file is part of the Tracy (https://tracy.nette.org)
  5:  * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
  6:  */
  7: 
  8: namespace Tracy;
  9: 
 10: use Tracy;
 11: 
 12: 
 13: /**
 14:  * Dumps a variable.
 15:  */
 16: class Dumper
 17: {
 18:     const
 19:         DEPTH = 'depth', // how many nested levels of array/object properties display (defaults to 4)
 20:         TRUNCATE = 'truncate', // how truncate long strings? (defaults to 150)
 21:         COLLAPSE = 'collapse', // collapse top array/object or how big are collapsed? (defaults to 14)
 22:         COLLAPSE_COUNT = 'collapsecount', // how big array/object are collapsed? (defaults to 7)
 23:         LOCATION = 'location', // show location string? (defaults to 0)
 24:         OBJECT_EXPORTERS = 'exporters', // custom exporters for objects (defaults to Dumper::$objectexporters)
 25:         LIVE = 'live'; // will be rendered using JavaScript
 26: 
 27:     const
 28:         LOCATION_SOURCE = 0b0001, // shows where dump was called
 29:         LOCATION_LINK = 0b0010, // appends clickable anchor
 30:         LOCATION_CLASS = 0b0100; // shows where class is defined
 31: 
 32:     /** @var array */
 33:     public static $terminalColors = [
 34:         'bool' => '1;33',
 35:         'null' => '1;33',
 36:         'number' => '1;32',
 37:         'string' => '1;36',
 38:         'array' => '1;31',
 39:         'key' => '1;37',
 40:         'object' => '1;31',
 41:         'visibility' => '1;30',
 42:         'resource' => '1;37',
 43:         'indent' => '1;30',
 44:     ];
 45: 
 46:     /** @var array */
 47:     public static $resources = [
 48:         'stream' => 'stream_get_meta_data',
 49:         'stream-context' => 'stream_context_get_options',
 50:         'curl' => 'curl_getinfo',
 51:     ];
 52: 
 53:     /** @var array */
 54:     public static $objectExporters = [
 55:         'Closure' => 'Tracy\Dumper::exportClosure',
 56:         'SplFileInfo' => 'Tracy\Dumper::exportSplFileInfo',
 57:         'SplObjectStorage' => 'Tracy\Dumper::exportSplObjectStorage',
 58:         '__PHP_Incomplete_Class' => 'Tracy\Dumper::exportPhpIncompleteClass',
 59:     ];
 60: 
 61:     /** @var string @internal */
 62:     public static $livePrefix;
 63: 
 64:     /** @var array  */
 65:     private static $liveStorage = [];
 66: 
 67: 
 68:     /**
 69:      * Dumps variable to the output.
 70:      * @return mixed  variable
 71:      */
 72:     public static function dump($var, array $options = null)
 73:     {
 74:         if (PHP_SAPI !== 'cli' && !preg_match('#^Content-Type: (?!text/html)#im', implode("\n", headers_list()))) {
 75:             echo self::toHtml($var, $options);
 76:         } elseif (self::detectColors()) {
 77:             echo self::toTerminal($var, $options);
 78:         } else {
 79:             echo self::toText($var, $options);
 80:         }
 81:         return $var;
 82:     }
 83: 
 84: 
 85:     /**
 86:      * Dumps variable to HTML.
 87:      * @return string
 88:      */
 89:     public static function toHtml($var, array $options = null)
 90:     {
 91:         $options = (array) $options + [
 92:             self::DEPTH => 4,
 93:             self::TRUNCATE => 150,
 94:             self::COLLAPSE => 14,
 95:             self::COLLAPSE_COUNT => 7,
 96:             self::OBJECT_EXPORTERS => null,
 97:         ];
 98:         $loc = &$options[self::LOCATION];
 99:         $loc = $loc === true ? ~0 : (int) $loc;
100: 
101:         $options[self::OBJECT_EXPORTERS] = (array) $options[self::OBJECT_EXPORTERS] + self::$objectExporters;
102:         uksort($options[self::OBJECT_EXPORTERS], function ($a, $b) {
103:             return $b === '' || (class_exists($a, false) && is_subclass_of($a, $b)) ? -1 : 1;
104:         });
105: 
106:         $live = !empty($options[self::LIVE]) && $var && (is_array($var) || is_object($var) || is_resource($var));
107:         list($file, $line, $code) = $loc ? self::findLocation() : null;
108:         $locAttrs = $file && $loc & self::LOCATION_SOURCE ? Helpers::formatHtml(
109:             ' title="%in file % on line %" data-tracy-href="%"', "$code\n", $file, $line, Helpers::editorUri($file, $line)
110:         ) : null;
111: 
112:         return '<pre class="tracy-dump' . ($live && $options[self::COLLAPSE] === true ? ' tracy-collapsed' : '') . '"'
113:             . $locAttrs
114:             . ($live ? " data-tracy-dump='" . json_encode(self::toJson($var, $options), JSON_HEX_APOS | JSON_HEX_AMP) . "'>" : '>')
115:             . ($live ? '' : self::dumpVar($var, $options))
116:             . ($file && $loc & self::LOCATION_LINK ? '<small>in ' . Helpers::editorLink($file, $line) . '</small>' : '')
117:             . "</pre>\n";
118:     }
119: 
120: 
121:     /**
122:      * Dumps variable to plain text.
123:      * @return string
124:      */
125:     public static function toText($var, array $options = null)
126:     {
127:         return htmlspecialchars_decode(strip_tags(self::toHtml($var, $options)), ENT_QUOTES);
128:     }
129: 
130: 
131:     /**
132:      * Dumps variable to x-terminal.
133:      * @return string
134:      */
135:     public static function toTerminal($var, array $options = null)
136:     {
137:         return htmlspecialchars_decode(strip_tags(preg_replace_callback('#<span class="tracy-dump-(\w+)">|</span>#', function ($m) {
138:             return "\033[" . (isset($m[1], self::$terminalColors[$m[1]]) ? self::$terminalColors[$m[1]] : '0') . 'm';
139:         }, self::toHtml($var, $options))), ENT_QUOTES);
140:     }
141: 
142: 
143:     /**
144:      * Internal toHtml() dump implementation.
145:      * @param  mixed  variable to dump
146:      * @param  array  options
147:      * @param  int    current recursion level
148:      * @return string
149:      */
150:     private static function dumpVar(&$var, array $options, $level = 0)
151:     {
152:         if (method_exists(__CLASS__, $m = 'dump' . gettype($var))) {
153:             return self::$m($var, $options, $level);
154:         } else {
155:             return "<span>unknown type</span>\n";
156:         }
157:     }
158: 
159: 
160:     private static function dumpNull()
161:     {
162:         return "<span class=\"tracy-dump-null\">null</span>\n";
163:     }
164: 
165: 
166:     private static function dumpBoolean(&$var)
167:     {
168:         return '<span class="tracy-dump-bool">' . ($var ? 'true' : 'false') . "</span>\n";
169:     }
170: 
171: 
172:     private static function dumpInteger(&$var)
173:     {
174:         return "<span class=\"tracy-dump-number\">$var</span>\n";
175:     }
176: 
177: 
178:     private static function dumpDouble(&$var)
179:     {
180:         $var = is_finite($var)
181:             ? ($tmp = json_encode($var)) . (strpos($tmp, '.') === false ? '.0' : '')
182:             : str_replace('.0', '', var_export($var, true)); // workaround for PHP 7.0.2
183:         return "<span class=\"tracy-dump-number\">$var</span>\n";
184:     }
185: 
186: 
187:     private static function dumpString(&$var, $options)
188:     {
189:         return '<span class="tracy-dump-string">"'
190:             . Helpers::escapeHtml(self::encodeString($var, $options[self::TRUNCATE]))
191:             . '"</span>' . (strlen($var) > 1 ? ' (' . strlen($var) . ')' : '') . "\n";
192:     }
193: 
194: 
195:     private static function dumpArray(&$var, $options, $level)
196:     {
197:         static $marker;
198:         if ($marker === null) {
199:             $marker = uniqid("\x00", true);
200:         }
201: 
202:         $out = '<span class="tracy-dump-array">array</span> (';
203: 
204:         if (empty($var)) {
205:             return $out . ")\n";
206: 
207:         } elseif (isset($var[$marker])) {
208:             return $out . (count($var) - 1) . ") [ <i>RECURSION</i> ]\n";
209: 
210:         } elseif (!$options[self::DEPTH] || $level < $options[self::DEPTH]) {
211:             $collapsed = $level ? count($var) >= $options[self::COLLAPSE_COUNT]
212:                 : (is_int($options[self::COLLAPSE]) ? count($var) >= $options[self::COLLAPSE] : $options[self::COLLAPSE]);
213:             $out = '<span class="tracy-toggle' . ($collapsed ? ' tracy-collapsed' : '') . '">'
214:                 . $out . count($var) . ")</span>\n<div" . ($collapsed ? ' class="tracy-collapsed"' : '') . '>';
215:             $var[$marker] = true;
216:             foreach ($var as $k => &$v) {
217:                 if ($k !== $marker) {
218:                     $k = is_int($k) || preg_match('#^\w{1,50}\z#', $k) ? $k : '"' . Helpers::escapeHtml(self::encodeString($k, $options[self::TRUNCATE])) . '"';
219:                     $out .= '<span class="tracy-dump-indent">   ' . str_repeat('|  ', $level) . '</span>'
220:                         . '<span class="tracy-dump-key">' . $k . '</span> => '
221:                         . self::dumpVar($v, $options, $level + 1);
222:                 }
223:             }
224:             unset($var[$marker]);
225:             return $out . '</div>';
226: 
227:         } else {
228:             return $out . count($var) . ") [ ... ]\n";
229:         }
230:     }
231: 
232: 
233:     private static function dumpObject(&$var, $options, $level)
234:     {
235:         $fields = self::exportObject($var, $options[self::OBJECT_EXPORTERS]);
236:         $editor = null;
237:         if ($options[self::LOCATION] & self::LOCATION_CLASS) {
238:             $rc = $var instanceof \Closure ? new \ReflectionFunction($var) : new \ReflectionClass($var);
239:             $editor = Helpers::editorUri($rc->getFileName(), $rc->getStartLine());
240:         }
241:         $out = '<span class="tracy-dump-object"'
242:             . ($editor ? Helpers::formatHtml(
243:                 ' title="Declared in file % on line %" data-tracy-href="%"', $rc->getFileName(), $rc->getStartLine(), $editor
244:             ) : '')
245:             . '>' . Helpers::escapeHtml(Helpers::getClass($var)) . '</span> <span class="tracy-dump-hash">#' . substr(md5(spl_object_hash($var)), 0, 4) . '</span>';
246: 
247:         static $list = [];
248: 
249:         if (empty($fields)) {
250:             return $out . "\n";
251: 
252:         } elseif (in_array($var, $list, true)) {
253:             return $out . " { <i>RECURSION</i> }\n";
254: 
255:         } elseif (!$options[self::DEPTH] || $level < $options[self::DEPTH] || $var instanceof \Closure) {
256:             $collapsed = $level ? count($fields) >= $options[self::COLLAPSE_COUNT]
257:                 : (is_int($options[self::COLLAPSE]) ? count($fields) >= $options[self::COLLAPSE] : $options[self::COLLAPSE]);
258:             $out = '<span class="tracy-toggle' . ($collapsed ? ' tracy-collapsed' : '') . '">'
259:                 . $out . "</span>\n<div" . ($collapsed ? ' class="tracy-collapsed"' : '') . '>';
260:             $list[] = $var;
261:             foreach ($fields as $k => &$v) {
262:                 $vis = '';
263:                 if (isset($k[0]) && $k[0] === "\x00") {
264:                     $vis = ' <span class="tracy-dump-visibility">' . ($k[1] === '*' ? 'protected' : 'private') . '</span>';
265:                     $k = substr($k, strrpos($k, "\x00") + 1);
266:                 }
267:                 $k = is_int($k) || preg_match('#^\w{1,50}\z#', $k) ? $k : '"' . Helpers::escapeHtml(self::encodeString($k, $options[self::TRUNCATE])) . '"';
268:                 $out .= '<span class="tracy-dump-indent">   ' . str_repeat('|  ', $level) . '</span>'
269:                     . '<span class="tracy-dump-key">' . $k . "</span>$vis => "
270:                     . self::dumpVar($v, $options, $level + 1);
271:             }
272:             array_pop($list);
273:             return $out . '</div>';
274: 
275:         } else {
276:             return $out . " { ... }\n";
277:         }
278:     }
279: 
280: 
281:     private static function dumpResource(&$var, $options, $level)
282:     {
283:         $type = get_resource_type($var);
284:         $out = '<span class="tracy-dump-resource">' . Helpers::escapeHtml($type) . ' resource</span> '
285:             . '<span class="tracy-dump-hash">#' . (int) $var . '</span>';
286:         if (isset(self::$resources[$type])) {
287:             $out = "<span class=\"tracy-toggle tracy-collapsed\">$out</span>\n<div class=\"tracy-collapsed\">";
288:             foreach (call_user_func(self::$resources[$type], $var) as $k => $v) {
289:                 $out .= '<span class="tracy-dump-indent">   ' . str_repeat('|  ', $level) . '</span>'
290:                     . '<span class="tracy-dump-key">' . Helpers::escapeHtml($k) . '</span> => ' . self::dumpVar($v, $options, $level + 1);
291:             }
292:             return $out . '</div>';
293:         }
294:         return "$out\n";
295:     }
296: 
297: 
298:     /**
299:      * @return mixed
300:      */
301:     private static function toJson(&$var, $options, $level = 0)
302:     {
303:         if (is_bool($var) || $var === null || is_int($var)) {
304:             return $var;
305: 
306:         } elseif (is_float($var)) {
307:             return is_finite($var)
308:                 ? (strpos($tmp = json_encode($var), '.') ? $var : ['number' => "$tmp.0"])
309:                 : ['type' => (string) $var];
310: 
311:         } elseif (is_string($var)) {
312:             return self::encodeString($var, $options[self::TRUNCATE]);
313: 
314:         } elseif (is_array($var)) {
315:             static $marker;
316:             if ($marker === null) {
317:                 $marker = uniqid("\x00", true);
318:             }
319:             if (isset($var[$marker]) || $level >= $options[self::DEPTH]) {
320:                 return [null];
321:             }
322:             $res = [];
323:             $var[$marker] = true;
324:             foreach ($var as $k => &$v) {
325:                 if ($k !== $marker) {
326:                     $k = is_int($k) || preg_match('#^\w{1,50}\z#', $k) ? $k : '"' . self::encodeString($k, $options[self::TRUNCATE]) . '"';
327:                     $res[] = [$k, self::toJson($v, $options, $level + 1)];
328:                 }
329:             }
330:             unset($var[$marker]);
331:             return $res;
332: 
333:         } elseif (is_object($var)) {
334:             $obj = &self::$liveStorage[spl_object_hash($var)];
335:             if ($obj && $obj['level'] <= $level) {
336:                 return ['object' => $obj['id']];
337:             }
338: 
339:             if ($options[self::LOCATION] & self::LOCATION_CLASS) {
340:                 $rc = $var instanceof \Closure ? new \ReflectionFunction($var) : new \ReflectionClass($var);
341:                 $editor = Helpers::editorUri($rc->getFileName(), $rc->getStartLine());
342:             }
343:             static $counter = 1;
344:             $obj = $obj ?: [
345:                 'id' => self::$livePrefix . '0' . $counter++, // differentiate from resources
346:                 'name' => Helpers::getClass($var),
347:                 'editor' => empty($editor) ? null : ['file' => $rc->getFileName(), 'line' => $rc->getStartLine(), 'url' => $editor],
348:                 'level' => $level,
349:                 'object' => $var,
350:             ];
351: 
352:             if ($level < $options[self::DEPTH] || !$options[self::DEPTH]) {
353:                 $obj['level'] = $level;
354:                 $obj['items'] = [];
355: 
356:                 foreach (self::exportObject($var, $options[self::OBJECT_EXPORTERS]) as $k => $v) {
357:                     $vis = 0;
358:                     if (isset($k[0]) && $k[0] === "\x00") {
359:                         $vis = $k[1] === '*' ? 1 : 2;
360:                         $k = substr($k, strrpos($k, "\x00") + 1);
361:                     }
362:                     $k = is_int($k) || preg_match('#^\w{1,50}\z#', $k) ? $k : '"' . self::encodeString($k, $options[self::TRUNCATE]) . '"';
363:                     $obj['items'][] = [$k, self::toJson($v, $options, $level + 1), $vis];
364:                 }
365:             }
366:             return ['object' => $obj['id']];
367: 
368:         } elseif (is_resource($var)) {
369:             $obj = &self::$liveStorage[(string) $var];
370:             if (!$obj) {
371:                 $type = get_resource_type($var);
372:                 $obj = ['id' => self::$livePrefix . (int) $var, 'name' => $type . ' resource'];
373:                 if (isset(self::$resources[$type])) {
374:                     foreach (call_user_func(self::$resources[$type], $var) as $k => $v) {
375:                         $obj['items'][] = [$k, self::toJson($v, $options, $level + 1)];
376:                     }
377:                 }
378:             }
379:             return ['resource' => $obj['id']];
380: 
381:         } else {
382:             return ['type' => 'unknown type'];
383:         }
384:     }
385: 
386: 
387:     /** @return array  */
388:     public static function fetchLiveData()
389:     {
390:         $res = [];
391:         foreach (self::$liveStorage as $obj) {
392:             $id = $obj['id'];
393:             unset($obj['level'], $obj['object'], $obj['id']);
394:             $res[$id] = $obj;
395:         }
396:         self::$liveStorage = [];
397:         return $res;
398:     }
399: 
400: 
401:     /**
402:      * @internal
403:      * @return string UTF-8
404:      */
405:     public static function encodeString($s, $maxLength = null)
406:     {
407:         static $table;
408:         if ($table === null) {
409:             foreach (array_merge(range("\x00", "\x1F"), range("\x7F", "\xFF")) as $ch) {
410:                 $table[$ch] = '\x' . str_pad(dechex(ord($ch)), 2, '0', STR_PAD_LEFT);
411:             }
412:             $table['\\'] = '\\\\';
413:             $table["\r"] = '\r';
414:             $table["\n"] = '\n';
415:             $table["\t"] = '\t';
416:         }
417: 
418:         if ($maxLength && strlen($s) > $maxLength) { // shortens to $maxLength in UTF-8 or longer
419:             if (function_exists('mb_substr')) {
420:                 $s = mb_substr($tmp = $s, 0, $maxLength, 'UTF-8');
421:                 $shortened = $s !== $tmp;
422:             } else {
423:                 $i = $len = 0;
424:                 $maxI = $maxLength * 4; // max UTF-8 length
425:                 do {
426:                     if (($s[$i] < "\x80" || $s[$i] >= "\xC0") && (++$len > $maxLength) || $i >= $maxI) {
427:                         $s = substr($s, 0, $i);
428:                         $shortened = true;
429:                         break;
430:                     }
431:                 } while (isset($s[++$i]));
432:             }
433:         }
434: 
435:         if (preg_match('#[^\x09\x0A\x0D\x20-\x7E\xA0-\x{10FFFF}]#u', $s) || preg_last_error()) { // is binary?
436:             if ($maxLength && strlen($s) > $maxLength) {
437:                 $s = substr($s, 0, $maxLength);
438:                 $shortened = true;
439:             }
440:             $s = strtr($s, $table);
441:         }
442: 
443:         return $s . (empty($shortened) ? '' : ' ... ');
444:     }
445: 
446: 
447:     /**
448:      * @return array
449:      */
450:     private static function exportObject($obj, array $exporters)
451:     {
452:         foreach ($exporters as $type => $dumper) {
453:             if (!$type || $obj instanceof $type) {
454:                 return call_user_func($dumper, $obj);
455:             }
456:         }
457:         return (array) $obj;
458:     }
459: 
460: 
461:     /**
462:      * @return array
463:      */
464:     private static function exportClosure(\Closure $obj)
465:     {
466:         $rc = new \ReflectionFunction($obj);
467:         $res = [];
468:         foreach ($rc->getParameters() as $param) {
469:             $res[] = '$' . $param->getName();
470:         }
471:         return [
472:             'file' => $rc->getFileName(),
473:             'line' => $rc->getStartLine(),
474:             'variables' => $rc->getStaticVariables(),
475:             'parameters' => implode(', ', $res),
476:         ];
477:     }
478: 
479: 
480:     /**
481:      * @return array
482:      */
483:     private static function exportSplFileInfo(\SplFileInfo $obj)
484:     {
485:         return ['path' => $obj->getPathname()];
486:     }
487: 
488: 
489:     /**
490:      * @return array
491:      */
492:     private static function exportSplObjectStorage(\SplObjectStorage $obj)
493:     {
494:         $res = [];
495:         foreach (clone $obj as $item) {
496:             $res[] = ['object' => $item, 'data' => $obj[$item]];
497:         }
498:         return $res;
499:     }
500: 
501: 
502:     /**
503:      * @return array
504:      */
505:     private static function exportPhpIncompleteClass(\__PHP_Incomplete_Class $obj)
506:     {
507:         $info = ['className' => null, 'private' => [], 'protected' => [], 'public' => []];
508:         foreach ((array) $obj as $name => $value) {
509:             if ($name === '__PHP_Incomplete_Class_Name') {
510:                 $info['className'] = $value;
511:             } elseif (preg_match('#^\x0\*\x0(.+)\z#', $name, $m)) {
512:                 $info['protected'][$m[1]] = $value;
513:             } elseif (preg_match('#^\x0(.+)\x0(.+)\z#', $name, $m)) {
514:                 $info['private'][$m[1] . '::$' . $m[2]] = $value;
515:             } else {
516:                 $info['public'][$name] = $value;
517:             }
518:         }
519:         return $info;
520:     }
521: 
522: 
523:     /**
524:      * Finds the location where dump was called.
525:      * @return array [file, line, code]
526:      */
527:     private static function findLocation()
528:     {
529:         foreach (debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS) as $item) {
530:             if (isset($item['class']) && $item['class'] === __CLASS__) {
531:                 $location = $item;
532:                 continue;
533:             } elseif (isset($item['function'])) {
534:                 try {
535:                     $reflection = isset($item['class'])
536:                         ? new \ReflectionMethod($item['class'], $item['function'])
537:                         : new \ReflectionFunction($item['function']);
538:                     if ($reflection->isInternal() || preg_match('#\s@tracySkipLocation\s#', (string) $reflection->getDocComment())) {
539:                         $location = $item;
540:                         continue;
541:                     }
542:                 } catch (\ReflectionException $e) {
543:                 }
544:             }
545:             break;
546:         }
547: 
548:         if (isset($location['file'], $location['line']) && is_file($location['file'])) {
549:             $lines = file($location['file']);
550:             $line = $lines[$location['line'] - 1];
551:             return [
552:                 $location['file'],
553:                 $location['line'],
554:                 trim(preg_match('#\w*dump(er::\w+)?\(.*\)#i', $line, $m) ? $m[0] : $line),
555:             ];
556:         }
557:     }
558: 
559: 
560:     /**
561:      * @return bool
562:      */
563:     private static function detectColors()
564:     {
565:         return self::$terminalColors &&
566:             (getenv('ConEmuANSI') === 'ON'
567:             || getenv('ANSICON') !== false
568:             || getenv('term') === 'xterm-256color'
569:             || (defined('STDOUT') && function_exists('posix_isatty') && posix_isatty(STDOUT)));
570:     }
571: }
572: 
Nette 2.4-20170829 API API documentation generated by ApiGen 2.8.0