Completed
Push — master ( a9060e...0a9d0b )
by Lars
01:39
created

HtmlDomParser::loadHtml()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 9

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 4
CRAP Score 1

Importance

Changes 0
Metric Value
dl 0
loc 9
ccs 4
cts 4
cp 1
rs 9.9666
c 0
b 0
f 0
cc 1
nc 1
nop 2
crap 1
1
<?php
2
3
declare(strict_types=1);
4
5
namespace voku\helper;
6
7
/**
8
 * @property-read string $outerText
9
 *                                 <p>Get dom node's outer html (alias for "outerHtml").</p>
10
 * @property-read string $outerHtml
11
 *                                 <p>Get dom node's outer html.</p>
12
 * @property-read string $innerText
13
 *                                 <p>Get dom node's inner html (alias for "innerHtml").</p>
14
 * @property-read string $innerHtml
15
 *                                 <p>Get dom node's inner html.</p>
16
 * @property-read string $plaintext
17
 *                                 <p>Get dom node's plain text.</p>
18
 *
19
 * @method string outerText()
20
 *                                 <p>Get dom node's outer html (alias for "outerHtml()").</p>
21
 * @method string outerHtml()
22
 *                                 <p>Get dom node's outer html.</p>
23
 * @method string innerText()
24
 *                                 <p>Get dom node's inner html (alias for "innerHtml()").</p>
25
 * @method HtmlDomParser load(string $html)
26
 *                                 <p>Load HTML from string.</p>
27
 * @method HtmlDomParser load_file(string $html)
28
 *                                 <p>Load HTML from file.</p>
29
 * @method static HtmlDomParser file_get_html($filePath, $libXMLExtraOptions = null)
30
 *                                 <p>Load HTML from file.</p>
31
 * @method static HtmlDomParser str_get_html($html, $libXMLExtraOptions = null)
32
 *                                 <p>Load HTML from string.</p>
33
 */
34
class HtmlDomParser extends AbstractDomParser
35
{
36
    /**
37
     * @var string[]
38
     */
39
    protected static $functionAliases = [
40
        'outertext' => 'html',
41
        'outerhtml' => 'html',
42
        'innertext' => 'innerHtml',
43
        'innerhtml' => 'innerHtml',
44
        'load'      => 'loadHtml',
45
        'load_file' => 'loadHtmlFile',
46
    ];
47
48
    /**
49
     * @var bool
50
     */
51
    protected $isDOMDocumentCreatedWithoutHtml = false;
52
53
    /**
54
     * @var bool
55
     */
56
    protected $isDOMDocumentCreatedWithoutWrapper = false;
57
58
    /**
59
     * @var bool
60
     */
61
    protected $isDOMDocumentCreatedWithoutHeadWrapper = false;
62
63
    /**
64
     * @var bool
65
     */
66
    protected $isDOMDocumentCreatedWithoutPTagWrapper = false;
67
68
    /**
69
     * @var bool
70
     */
71
    protected $isDOMDocumentCreatedWithoutHtmlWrapper = false;
72
73
    /**
74
     * @var bool
75
     */
76
    protected $isDOMDocumentCreatedWithoutBodyWrapper = false;
77
78
    /**
79
     * @var bool
80
     */
81
    protected $isDOMDocumentCreatedWithFakeEndScript = false;
82
83
    /**
84
     * @var bool
85
     */
86
    protected $keepBrokenHtml;
87
88
    /**
89
     * @param \DOMNode|SimpleHtmlDomInterface|string $element HTML code or SimpleHtmlDomInterface, \DOMNode
90
     */
91 205 View Code Duplication
    public function __construct($element = null)
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Duplication introduced by
This method seems to be duplicated in your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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92
    {
93 205
        $this->document = new \DOMDocument('1.0', $this->getEncoding());
94
95
        // DOMDocument settings
96 205
        $this->document->preserveWhiteSpace = true;
97 205
        $this->document->formatOutput = true;
98
99 205
        if ($element instanceof SimpleHtmlDomInterface) {
100 95
            $element = $element->getNode();
101
        }
102
103 205
        if ($element instanceof \DOMNode) {
104 95
            $domNode = $this->document->importNode($element, true);
105
106 95
            if ($domNode instanceof \DOMNode) {
107
                /** @noinspection UnusedFunctionResultInspection */
108 95
                $this->document->appendChild($domNode);
109
            }
110
111 95
            return;
112
        }
113
114 205
        if ($element !== null) {
115
            /** @noinspection UnusedFunctionResultInspection */
116 84
            $this->loadHtml($element);
117
        }
118 204
    }
119
120
    /**
121
     * @param string $name
122
     * @param array  $arguments
123
     *
124
     * @return bool|mixed
125
     */
126 74
    public function __call($name, $arguments)
127
    {
128 74
        $name = \strtolower($name);
129
130 74
        if (isset(self::$functionAliases[$name])) {
131 73
            return \call_user_func_array([$this, self::$functionAliases[$name]], $arguments);
132
        }
133
134 1
        throw new \BadMethodCallException('Method does not exist: ' . $name);
135
    }
136
137
    /**
138
     * @param string $name
139
     * @param array  $arguments
140
     *
141
     * @throws \BadMethodCallException
142
     * @throws \RuntimeException
143
     *
144
     * @return HtmlDomParser
145
     */
146 23 View Code Duplication
    public static function __callStatic($name, $arguments)
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Duplication introduced by
This method seems to be duplicated in your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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147
    {
148 23
        $arguments0 = $arguments[0] ?? '';
149
150 23
        $arguments1 = $arguments[1] ?? null;
151
152 23
        if ($name === 'str_get_html') {
153 18
            $parser = new static();
154
155 18
            return $parser->loadHtml($arguments0, $arguments1);
156
        }
157
158 5
        if ($name === 'file_get_html') {
159 4
            $parser = new static();
160
161 4
            return $parser->loadHtmlFile($arguments0, $arguments1);
162
        }
163
164 1
        throw new \BadMethodCallException('Method does not exist');
165
    }
166
167
    /** @noinspection MagicMethodsValidityInspection */
168
169
    /**
170
     * @param string $name
171
     *
172
     * @return string|null
173
     */
174 15
    public function __get($name)
175
    {
176 15
        $name = \strtolower($name);
177
178 15
        switch ($name) {
179 15
            case 'outerhtml':
180 15
            case 'outertext':
181 5
                return $this->html();
182 11
            case 'innerhtml':
183 5
            case 'innertext':
184 7
                return $this->innerHtml();
185 4
            case 'text':
186 4
            case 'plaintext':
187 3
                return $this->text();
188
        }
189
190 1
        return null;
191
    }
192
193
    /**
194
     * @return string
195
     */
196 19
    public function __toString()
197
    {
198 19
        return $this->html();
199
    }
200
201
    /**
202
     * does nothing (only for api-compatibility-reasons)
203
     *
204
     * @return bool
205
     *
206
     * @deprecated
207
     */
208 6
    public function clear(): bool
209
    {
210 6
        return true;
211
    }
212
213
    /**
214
     * Create DOMDocument from HTML.
215
     *
216
     * @param string   $html
217
     * @param int|null $libXMLExtraOptions
218
     *
219
     * @return \DOMDocument
220
     */
221 190
    protected function createDOMDocument(string $html, $libXMLExtraOptions = null): \DOMDocument
222
    {
223 190
        if ($this->keepBrokenHtml) {
224 3
            $html = $this->keepBrokenHtml(\trim($html));
225
        }
226
227 190
        if (\strpos($html, '<') === false) {
228 10
            $this->isDOMDocumentCreatedWithoutHtml = true;
229 188
        } elseif (\strpos(\ltrim($html), '<') !== 0) {
230 5
            $this->isDOMDocumentCreatedWithoutWrapper = true;
231
        }
232
233
        /** @noinspection HtmlRequiredLangAttribute */
234
        if (
235 190
            \strpos($html, '<html ') === false
236
            &&
237 190
            \strpos($html, '<html>') === false
238
        ) {
239 113
            $this->isDOMDocumentCreatedWithoutHtmlWrapper = true;
240
        }
241
242
        if (
243 190
            \strpos($html, '<body ') === false
244
            &&
245 190
            \strpos($html, '<body>') === false
246
        ) {
247 118
            $this->isDOMDocumentCreatedWithoutBodyWrapper = true;
248
        }
249
250
        /** @noinspection HtmlRequiredTitleElement */
251
        if (
252 190
            \strpos($html, '<head ') === false
253
            &&
254 190
            \strpos($html, '<head>') === false
255
        ) {
256 137
            $this->isDOMDocumentCreatedWithoutHeadWrapper = true;
257
        }
258
259
        /** @noinspection HtmlRequiredTitleElement */
260
        if (
261 190
            \strpos($html, '<p ') === false
262
            &&
263 190
            \strpos($html, '<p>') === false
264
        ) {
265 101
            $this->isDOMDocumentCreatedWithoutPTagWrapper = true;
266
        }
267
268
        if (
269 190
            \strpos($html, '</script>') === false
270
            &&
271 190
            \strpos($html, '<\/script>') !== false
272
        ) {
273 1
            $this->isDOMDocumentCreatedWithFakeEndScript = true;
274
        }
275
276 190
        if (\strpos($html, '<script') !== false) {
277 20
            $this->html5FallbackForScriptTags($html);
278
279
            if (
280 20
                \strpos($html, 'type="text/html"') !== false
281
                ||
282 19
                \strpos($html, 'type=\'text/html\'') !== false
283
                ||
284 19
                \strpos($html, 'type=text/html') !== false
285
                ||
286 19
                \strpos($html, 'type="text/x-custom-template"') !== false
287
                ||
288 18
                \strpos($html, 'type=\'text/x-custom-template\'') !== false
289
                ||
290 20
                \strpos($html, 'type=text/x-custom-template') !== false
291
            ) {
292 2
                $this->keepSpecialScriptTags($html);
293
            }
294
        }
295
296
        // set error level
297 190
        $internalErrors = \libxml_use_internal_errors(true);
298 190
        $disableEntityLoader = \libxml_disable_entity_loader(true);
299 190
        \libxml_clear_errors();
300
301 190
        $optionsXml = \LIBXML_DTDLOAD | \LIBXML_DTDATTR | \LIBXML_NONET;
302
303 190
        if (\defined('LIBXML_BIGLINES')) {
304 190
            $optionsXml |= \LIBXML_BIGLINES;
305
        }
306
307 190
        if (\defined('LIBXML_COMPACT')) {
308 190
            $optionsXml |= \LIBXML_COMPACT;
309
        }
310
311 190
        if (\defined('LIBXML_HTML_NODEFDTD')) {
312 190
            $optionsXml |= \LIBXML_HTML_NODEFDTD;
313
        }
314
315 190
        if ($libXMLExtraOptions !== null) {
316 5
            $optionsXml |= $libXMLExtraOptions;
317
        }
318
319
        if (
320 190
            $this->isDOMDocumentCreatedWithoutWrapper
321
            ||
322 190
            $this->keepBrokenHtml
323
        ) {
324 7
            $html = '<' . self::$domHtmlWrapperHelper . '>' . $html . '</' . self::$domHtmlWrapperHelper . '>';
325
        }
326
327 190
        $html = self::replaceToPreserveHtmlEntities($html);
328
329 190
        $documentFound = false;
330 190
        $sxe = \simplexml_load_string($html, \SimpleXMLElement::class, $optionsXml);
331 190 View Code Duplication
        if ($sxe !== false && \count(\libxml_get_errors()) === 0) {
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Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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332 81
            $domElementTmp = \dom_import_simplexml($sxe);
333 81
            if ($domElementTmp) {
334 81
                $documentFound = true;
335 81
                $this->document = $domElementTmp->ownerDocument;
336
            }
337
        }
338
339 190 View Code Duplication
        if ($documentFound === false) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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340
341
            // UTF-8 hack: http://php.net/manual/en/domdocument.loadhtml.php#95251
342 118
            $xmlHackUsed = false;
343
            /** @noinspection StringFragmentMisplacedInspection */
344 118
            if (\stripos('<?xml', $html) !== 0) {
345 118
                $xmlHackUsed = true;
346 118
                $html = '<?xml encoding="' . $this->getEncoding() . '" ?>' . $html;
347
            }
348
349 118
            $this->document->loadHTML($html, $optionsXml);
350
351
            // remove the "xml-encoding" hack
352 118
            if ($xmlHackUsed) {
353 118
                foreach ($this->document->childNodes as $child) {
354 118
                    if ($child->nodeType === \XML_PI_NODE) {
355
                        /** @noinspection UnusedFunctionResultInspection */
356 118
                        $this->document->removeChild($child);
357
358 118
                        break;
359
                    }
360
                }
361
            }
362
        }
363
364
        // set encoding
365 190
        $this->document->encoding = $this->getEncoding();
366
367
        // restore lib-xml settings
368 190
        \libxml_clear_errors();
369 190
        \libxml_use_internal_errors($internalErrors);
370 190
        \libxml_disable_entity_loader($disableEntityLoader);
371
372 190
        return $this->document;
373
    }
374
375
    /**
376
     * Find list of nodes with a CSS selector.
377
     *
378
     * @param string   $selector
379
     * @param int|null $idx
380
     *
381
     * @return SimpleHtmlDomInterface|SimpleHtmlDomInterface[]|SimpleHtmlDomNodeInterface<SimpleHtmlDomInterface>
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The doc-type SimpleHtmlDomInterface|S...SimpleHtmlDomInterface> could not be parsed: Expected "|" or "end of type", but got "<" at position 74. (view supported doc-types)

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382
     */
383 140 View Code Duplication
    public function find(string $selector, $idx = null)
0 ignored issues
show
Duplication introduced by
This method seems to be duplicated in your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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384
    {
385 140
        $xPathQuery = SelectorConverter::toXPath($selector);
386
387 140
        $xPath = new \DOMXPath($this->document);
388 140
        $nodesList = $xPath->query($xPathQuery);
389 140
        $elements = new SimpleHtmlDomNode();
390
391 140
        if ($nodesList) {
392 140
            foreach ($nodesList as $node) {
393 130
                $elements[] = new SimpleHtmlDom($node);
394
            }
395
        }
396
397
        // return all elements
398 140
        if ($idx === null) {
399 69
            if (\count($elements) === 0) {
400 16
                return new SimpleHtmlDomNodeBlank();
401
            }
402
403 66
            return $elements;
404
        }
405
406
        // handle negative values
407 89
        if ($idx < 0) {
408 11
            $idx = \count($elements) + $idx;
409
        }
410
411
        // return one element
412 89
        return $elements[$idx] ?? new SimpleHtmlDomBlank();
413
    }
414
415
    /**
416
     * Find nodes with a CSS selector.
417
     *
418
     * @param string $selector
419
     *
420
     * @return SimpleHtmlDomInterface[]|SimpleHtmlDomNodeInterface<SimpleHtmlDomInterface>
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Documentation introduced by
The doc-type SimpleHtmlDomInterface[]...SimpleHtmlDomInterface> could not be parsed: Expected "|" or "end of type", but got "<" at position 51. (view supported doc-types)

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421
     */
422 12
    public function findMulti(string $selector): SimpleHtmlDomNodeInterface
423
    {
424 12
        return $this->find($selector, null);
425
    }
426
427
    /**
428
     * Find nodes with a CSS selector or false, if no element is found.
429
     *
430
     * @param string $selector
431
     *
432
     * @return false|SimpleHtmlDomInterface[]|SimpleHtmlDomNodeInterface<SimpleHtmlDomInterface>
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433
     */
434 3
    public function findMultiOrFalse(string $selector)
435
    {
436 3
        $return = $this->find($selector, null);
437
438 3
        if ($return instanceof SimpleHtmlDomNodeBlank) {
439 3
            return false;
440
        }
441
442 1
        return $return;
443
    }
444
445
    /**
446
     * Find one node with a CSS selector.
447
     *
448
     * @param string $selector
449
     *
450
     * @return SimpleHtmlDomInterface
451
     */
452 32
    public function findOne(string $selector): SimpleHtmlDomInterface
453
    {
454 32
        return $this->find($selector, 0);
455
    }
456
457
    /**
458
     * Find one node with a CSS selector or false, if no element is found.
459
     *
460
     * @param string $selector
461
     *
462
     * @return false|SimpleHtmlDomInterface
463
     */
464 5
    public function findOneOrFalse(string $selector)
465
    {
466 5
        $return = $this->find($selector, 0);
467
468 5
        if ($return instanceof SimpleHtmlDomBlank) {
469 3
            return false;
470
        }
471
472 3
        return $return;
473
    }
474
475
    /**
476
     * @param string $content
477
     * @param bool   $multiDecodeNewHtmlEntity
478
     *
479
     * @return string
480
     */
481 116
    public function fixHtmlOutput(
482
        string $content,
483
        bool $multiDecodeNewHtmlEntity = false
484
    ): string {
485
        // INFO: DOMDocument will encapsulate plaintext into a e.g. paragraph tag (<p>),
486
        //          so we try to remove it here again ...
487
488 116
        if ($this->getIsDOMDocumentCreatedWithoutHtmlWrapper()) {
489
            /** @noinspection HtmlRequiredLangAttribute */
490 55
            $content = \str_replace(
491
                [
492 55
                    '<html>',
493
                    '</html>',
494
                ],
495 55
                '',
496 55
                $content
497
            );
498
        }
499
500 116
        if ($this->getIsDOMDocumentCreatedWithoutHeadWrapper()) {
501
            /** @noinspection HtmlRequiredTitleElement */
502 59
            $content = \str_replace(
503
                [
504 59
                    '<head>',
505
                    '</head>',
506
                ],
507 59
                '',
508 59
                $content
509
            );
510
        }
511
512 116
        if ($this->getIsDOMDocumentCreatedWithoutBodyWrapper()) {
513
            /** @noinspection HtmlRequiredLangAttribute */
514 58
            $content = \str_replace(
515
                [
516 58
                    '<body>',
517
                    '</body>',
518
                ],
519 58
                '',
520 58
                $content
521
            );
522
        }
523
524 116
        if ($this->getIsDOMDocumentCreatedWithFakeEndScript()) {
525 1
            $content = \str_replace(
526 1
                '</script>',
527 1
                '',
528 1
                $content
529
            );
530
        }
531
532 116
        if ($this->getIsDOMDocumentCreatedWithoutWrapper()) {
533 4
            $content = (string) \preg_replace('/^<p>/', '', $content);
534 4
            $content = (string) \preg_replace('/<\/p>/', '', $content);
535
        }
536
537 116
        if ($this->getIsDOMDocumentCreatedWithoutPTagWrapper()) {
538 54
            $content = \str_replace(
539
                [
540 54
                    '<p>',
541
                    '</p>',
542
                ],
543 54
                '',
544 54
                $content
545
            );
546
        }
547
548 116
        if ($this->getIsDOMDocumentCreatedWithoutHtml()) {
549 8
            $content = \str_replace(
550 8
                '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">',
551 8
                '',
552 8
                $content
553
            );
554
        }
555
556
        /** @noinspection CheckTagEmptyBody */
557
        /** @noinspection HtmlExtraClosingTag */
558
        /** @noinspection HtmlRequiredTitleElement */
559 116
        $content = \trim(
560 116
            \str_replace(
561
                [
562 116
                    '<simpleHtmlDomHtml>',
563
                    '</simpleHtmlDomHtml>',
564
                    '<simpleHtmlDomP>',
565
                    '</simpleHtmlDomP>',
566
                    '<head><head>',
567
                    '</head></head>',
568
                    '<br></br>',
569
                ],
570
                [
571 116
                    '',
572
                    '',
573
                    '',
574
                    '',
575
                    '<head>',
576
                    '</head>',
577
                    '<br>',
578
                ],
579 116
                $content
580
            )
581
        );
582
583 116
        $content = $this->decodeHtmlEntity($content, $multiDecodeNewHtmlEntity);
584
585 116
        return self::putReplacedBackToPreserveHtmlEntities($content);
586
    }
587
588
    /**
589
     * Return elements by ".class".
590
     *
591
     * @param string $class
592
     *
593
     * @return SimpleHtmlDomInterface[]|SimpleHtmlDomNodeInterface<SimpleHtmlDomInterface>
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Documentation introduced by
The doc-type SimpleHtmlDomInterface[]...SimpleHtmlDomInterface> could not be parsed: Expected "|" or "end of type", but got "<" at position 51. (view supported doc-types)

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594
     */
595
    public function getElementByClass(string $class): SimpleHtmlDomNodeInterface
596
    {
597
        return $this->findMulti(".${class}");
598
    }
599
600
    /**
601
     * Return element by #id.
602
     *
603
     * @param string $id
604
     *
605
     * @return SimpleHtmlDomInterface
606
     */
607 3
    public function getElementById(string $id): SimpleHtmlDomInterface
608
    {
609 3
        return $this->findOne("#${id}");
610
    }
611
612
    /**
613
     * Return element by tag name.
614
     *
615
     * @param string $name
616
     *
617
     * @return SimpleHtmlDomInterface
618
     */
619 1
    public function getElementByTagName(string $name): SimpleHtmlDomInterface
620
    {
621 1
        $node = $this->document->getElementsByTagName($name)->item(0);
622
623 1
        if ($node === null) {
624
            return new SimpleHtmlDomBlank();
625
        }
626
627 1
        return new SimpleHtmlDom($node);
628
    }
629
630
    /**
631
     * Returns elements by "#id".
632
     *
633
     * @param string   $id
634
     * @param int|null $idx
635
     *
636
     * @return SimpleHtmlDomInterface|SimpleHtmlDomInterface[]|SimpleHtmlDomNodeInterface<SimpleHtmlDomInterface>
0 ignored issues
show
Documentation introduced by
The doc-type SimpleHtmlDomInterface|S...SimpleHtmlDomInterface> could not be parsed: Expected "|" or "end of type", but got "<" at position 74. (view supported doc-types)

This check marks PHPDoc comments that could not be parsed by our parser. To see which comment annotations we can parse, please refer to our documentation on supported doc-types.

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637
     */
638
    public function getElementsById(string $id, $idx = null)
639
    {
640
        return $this->find("#${id}", $idx);
641
    }
642
643
    /**
644
     * Returns elements by tag name.
645
     *
646
     * @param string   $name
647
     * @param int|null $idx
648
     *
649
     * @return SimpleHtmlDomInterface|SimpleHtmlDomInterface[]|SimpleHtmlDomNodeInterface<SimpleHtmlDomInterface>
0 ignored issues
show
Documentation introduced by
The doc-type SimpleHtmlDomInterface|S...SimpleHtmlDomInterface> could not be parsed: Expected "|" or "end of type", but got "<" at position 74. (view supported doc-types)

This check marks PHPDoc comments that could not be parsed by our parser. To see which comment annotations we can parse, please refer to our documentation on supported doc-types.

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650
     */
651 6
    public function getElementsByTagName(string $name, $idx = null)
652
    {
653 6
        $nodesList = $this->document->getElementsByTagName($name);
654
655 6
        $elements = new SimpleHtmlDomNode();
656
657 6
        foreach ($nodesList as $node) {
658 4
            $elements[] = new SimpleHtmlDom($node);
659
        }
660
661
        // return all elements
662 6
        if ($idx === null) {
663 5
            if (\count($elements) === 0) {
664 2
                return new SimpleHtmlDomNodeBlank();
665
            }
666
667 3
            return $elements;
668
        }
669
670
        // handle negative values
671 1
        if ($idx < 0) {
672
            $idx = \count($elements) + $idx;
673
        }
674
675
        // return one element
676 1
        return $elements[$idx] ?? new SimpleHtmlDomNodeBlank();
677
    }
678
679
    /**
680
     * Get dom node's outer html.
681
     *
682
     * @param bool $multiDecodeNewHtmlEntity
683
     *
684
     * @return string
685
     */
686 84
    public function html(bool $multiDecodeNewHtmlEntity = false): string
687
    {
688 84
        if (static::$callback !== null) {
689
            \call_user_func(static::$callback, [$this]);
690
        }
691
692 84
        if ($this->getIsDOMDocumentCreatedWithoutHtmlWrapper()) {
693 48
            $content = $this->document->saveHTML($this->document->documentElement);
694
        } else {
695 48
            $content = $this->document->saveHTML();
696
        }
697
698 84
        if ($content === false) {
699
            return '';
700
        }
701
702 84
        return $this->fixHtmlOutput($content, $multiDecodeNewHtmlEntity);
703
    }
704
705
    /**
706
     * Load HTML from string.
707
     *
708
     * @param string   $html
709
     * @param int|null $libXMLExtraOptions
710
     *
711
     * @return HtmlDomParser
712
     */
713 190
    public function loadHtml(string $html, $libXMLExtraOptions = null): DomParserInterface
714
    {
715
        // reset
716 190
        self::$domBrokenReplaceHelper = [];
717
718 190
        $this->document = $this->createDOMDocument($html, $libXMLExtraOptions);
719
720 190
        return $this;
0 ignored issues
show
Bug Best Practice introduced by
The return type of return $this; (voku\helper\HtmlDomParser) is incompatible with the return type declared by the interface voku\helper\DomParserInterface::loadHtml of type self.

If you return a value from a function or method, it should be a sub-type of the type that is given by the parent type f.e. an interface, or abstract method. This is more formally defined by the Lizkov substitution principle, and guarantees that classes that depend on the parent type can use any instance of a child type interchangably. This principle also belongs to the SOLID principles for object oriented design.

Let’s take a look at an example:

class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}

Our function my_function expects a Post object, and outputs the author of the post. The base class Post returns a simple string and outputting a simple string will work just fine. However, the child class BlogPost which is a sub-type of Post instead decided to return an object, and is therefore violating the SOLID principles. If a BlogPost were passed to my_function, PHP would not complain, but ultimately fail when executing the strtoupper call in its body.

Loading history...
721
    }
722
723
    /**
724
     * Load HTML from file.
725
     *
726
     * @param string   $filePath
727
     * @param int|null $libXMLExtraOptions
728
     *
729
     * @throws \RuntimeException
730
     *
731
     * @return HtmlDomParser
732
     */
733 11 View Code Duplication
    public function loadHtmlFile(string $filePath, $libXMLExtraOptions = null): DomParserInterface
0 ignored issues
show
Duplication introduced by
This method seems to be duplicated in your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
734
    {
735
        // reset
736 11
        self::$domBrokenReplaceHelper = [];
737
738
        if (
739 11
            !\preg_match("/^https?:\/\//i", $filePath)
740
            &&
741 11
            !\file_exists($filePath)
742
        ) {
743 1
            throw new \RuntimeException("File ${filePath} not found");
744
        }
745
746
        try {
747 10
            if (\class_exists('\voku\helper\UTF8')) {
748
                /** @noinspection PhpUndefinedClassInspection */
749
                $html = UTF8::file_get_contents($filePath);
750
            } else {
751 10
                $html = \file_get_contents($filePath);
752
            }
753 1
        } catch (\Exception $e) {
754 1
            throw new \RuntimeException("Could not load file ${filePath}");
755
        }
756
757 9
        if ($html === false) {
758
            throw new \RuntimeException("Could not load file ${filePath}");
759
        }
760
761 9
        return $this->loadHtml($html, $libXMLExtraOptions);
762
    }
763
764
    /**
765
     * Get the HTML as XML or plain XML if needed.
766
     *
767
     * @param bool $multiDecodeNewHtmlEntity
768
     * @param bool $htmlToXml
769
     * @param bool $removeXmlHeader
770
     * @param int  $options
771
     *
772
     * @return string
773
     */
774 2 View Code Duplication
    public function xml(
0 ignored issues
show
Duplication introduced by
This method seems to be duplicated in your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
775
        bool $multiDecodeNewHtmlEntity = false,
776
        bool $htmlToXml = true,
777
        bool $removeXmlHeader = true,
778
        int $options = \LIBXML_NOEMPTYTAG
779
    ): string {
780 2
        $xml = $this->document->saveXML(null, $options);
781
782 2
        if ($removeXmlHeader) {
783 2
            $xml = \ltrim((string) \preg_replace('/<\?xml.*\?>/', '', $xml));
784
        }
785
786 2
        if ($htmlToXml) {
787 2
            $return = $this->fixHtmlOutput($xml, $multiDecodeNewHtmlEntity);
788
        } else {
789
            $xml = $this->decodeHtmlEntity($xml, $multiDecodeNewHtmlEntity);
790
791
            $return = self::putReplacedBackToPreserveHtmlEntities($xml);
792
        }
793
794 2
        return $return;
795
    }
796
797
    /**
798
     * @param string $selector
799
     * @param int    $idx
800
     *
801
     * @return SimpleHtmlDomInterface|SimpleHtmlDomInterface[]|SimpleHtmlDomNodeInterface<SimpleHtmlDomInterface>
0 ignored issues
show
Documentation introduced by
The doc-type SimpleHtmlDomInterface|S...SimpleHtmlDomInterface> could not be parsed: Expected "|" or "end of type", but got "<" at position 74. (view supported doc-types)

This check marks PHPDoc comments that could not be parsed by our parser. To see which comment annotations we can parse, please refer to our documentation on supported doc-types.

Loading history...
802
     */
803 3
    public function __invoke($selector, $idx = null)
804
    {
805 3
        return $this->find($selector, $idx);
806
    }
807
808
    /**
809
     * @return bool
810
     */
811 116
    public function getIsDOMDocumentCreatedWithoutHeadWrapper(): bool
812
    {
813 116
        return $this->isDOMDocumentCreatedWithoutHeadWrapper;
814
    }
815
816
    /**
817
     * @return bool
818
     */
819 116
    public function getIsDOMDocumentCreatedWithoutPTagWrapper(): bool
820
    {
821 116
        return $this->isDOMDocumentCreatedWithoutPTagWrapper;
822
    }
823
824
    /**
825
     * @return bool
826
     */
827 116
    public function getIsDOMDocumentCreatedWithoutHtml(): bool
828
    {
829 116
        return $this->isDOMDocumentCreatedWithoutHtml;
830
    }
831
832
    /**
833
     * @return bool
834
     */
835 116
    public function getIsDOMDocumentCreatedWithoutBodyWrapper(): bool
836
    {
837 116
        return $this->isDOMDocumentCreatedWithoutBodyWrapper;
838
    }
839
840
    /**
841
     * @return bool
842
     */
843 116
    public function getIsDOMDocumentCreatedWithoutHtmlWrapper(): bool
844
    {
845 116
        return $this->isDOMDocumentCreatedWithoutHtmlWrapper;
846
    }
847
848
    /**
849
     * @return bool
850
     */
851 116
    public function getIsDOMDocumentCreatedWithoutWrapper(): bool
852
    {
853 116
        return $this->isDOMDocumentCreatedWithoutWrapper;
854
    }
855
856
    /**
857
     * @return bool
858
     */
859 116
    public function getIsDOMDocumentCreatedWithFakeEndScript(): bool
860
    {
861 116
        return $this->isDOMDocumentCreatedWithFakeEndScript;
862
    }
863
864
    /**
865
     * @param string $html
866
     *
867
     * @return string
868
     */
869 3
    protected function keepBrokenHtml(string $html): string
870
    {
871
        do {
872 3
            $original = $html;
873
874 3
            $html = (string) \preg_replace_callback(
875 3
                '/(?<start>.*)<(?<element_start>[a-z]+)(?<element_start_addon> [^>]*)?>(?<value>.*?)<\/(?<element_end>\2)>(?<end>.*)/sui',
876
                static function ($matches) {
877 3
                    return $matches['start'] .
878 3
                           '°lt_simple_html_dom__voku_°' . $matches['element_start'] . $matches['element_start_addon'] . '°gt_simple_html_dom__voku_°' .
879 3
                           $matches['value'] .
880 3
                           '°lt/_simple_html_dom__voku_°' . $matches['element_end'] . '°gt_simple_html_dom__voku_°' .
881 3
                           $matches['end'];
882 3
                },
883 3
                $html
884
            );
885 3
        } while ($original !== $html);
886
887
        do {
888 3
            $original = $html;
889
890 3
            $html = (string) \preg_replace_callback(
891 3
                '/(?<start>[^<]*)?(?<broken>(?:(?:<\/\w+(?:\s+\w+=\\"[^\"]+\\")*+)(?:[^<]+)>)+)(?<end>.*)/u',
892
                static function ($matches) {
893 3
                    $matches['broken'] = \str_replace(
894 3
                        ['°lt/_simple_html_dom__voku_°', '°lt_simple_html_dom__voku_°', '°gt_simple_html_dom__voku_°'],
895 3
                        ['</', '<', '>'],
896 3
                        $matches['broken']
897
                    );
898
899 3
                    self::$domBrokenReplaceHelper['orig'][] = $matches['broken'];
900 3
                    self::$domBrokenReplaceHelper['tmp'][] = $matchesHash = self::$domHtmlBrokenHtmlHelper . \crc32($matches['broken']);
901
902 3
                    return $matches['start'] . $matchesHash . $matches['end'];
903 3
                },
904 3
                $html
905
            );
906 3
        } while ($original !== $html);
907
908 3
        return \str_replace(
909 3
            ['°lt/_simple_html_dom__voku_°', '°lt_simple_html_dom__voku_°', '°gt_simple_html_dom__voku_°'],
910 3
            ['</', '<', '>'],
911 3
            $html
912
        );
913
    }
914
915
    /**
916
     * @param string $html
917
     *
918
     * @return void
919
     */
920 2
    protected function keepSpecialScriptTags(string &$html)
921
    {
922
        // regEx for e.g.: [<script id="elements-image-1" type="text/html">...</script>]
923 2
        $html = (string) \preg_replace_callback(
924 2
            '/(?<start>((?:<script) [^>]*type=(?:["\'])?(?:text\/html|text\/x-custom-template)+(?:[^>]*)>))(?<innerContent>.*)(?<end><\/script>)/isU',
925
            static function ($matches) {
926
                if (
927 2
                    \strpos($matches['innerContent'], '+') === false
928
                    &&
929 2
                    \strpos($matches['innerContent'], '<%') === false
930
                    &&
931 2
                    \strpos($matches['innerContent'], '{%') === false
932
                    &&
933 2
                    \strpos($matches['innerContent'], '{{') === false
934
                ) {
935
                    // remove the html5 fallback
936 1
                    $matches[0] = \str_replace('<\/', '</', $matches[0]);
937
938 1
                    $specialNonScript = '<' . self::$domHtmlSpecialScriptHelper . \substr($matches[0], \strlen('<script'));
939
940 1
                    return \substr($specialNonScript, 0, -\strlen('</script>')) . '</' . self::$domHtmlSpecialScriptHelper . '>';
941
                }
942
943
                // remove the html5 fallback
944 1
                $matches['innerContent'] = \str_replace('<\/', '</', $matches['innerContent']);
945
946 1
                self::$domBrokenReplaceHelper['orig'][] = $matches['innerContent'];
947 1
                self::$domBrokenReplaceHelper['tmp'][] = $matchesHash = '' . self::$domHtmlBrokenHtmlHelper . '' . \crc32($matches['innerContent']);
948
949 1
                return $matches['start'] . $matchesHash . $matches['end'];
950 2
            },
951 2
            $html
952
        );
953 2
    }
954
955
    /**
956
     * @param bool $keepBrokenHtml
957
     *
958
     * @return HtmlDomParser
959
     */
960 3
    public function useKeepBrokenHtml(bool $keepBrokenHtml): DomParserInterface
961
    {
962 3
        $this->keepBrokenHtml = $keepBrokenHtml;
963
964 3
        return $this;
965
    }
966
}
967