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| 1 | +<?php |
| 2 | + |
| 3 | +declare(strict_types=1); |
| 4 | + |
| 5 | +namespace RedditImage\Processor; |
| 6 | + |
| 7 | +use \Throwable; |
| 8 | +use Minz_Log; |
| 9 | +use RedditImage\Content; |
| 10 | +use RedditImage\Settings; |
| 11 | +use RedditImage\Transformer\Agnostic\ImageTransformer as AgnosticImageTransformer; |
| 12 | +use RedditImage\Transformer\Agnostic\LinkTransformer as AgnosticLinkTransformer; |
| 13 | +use RedditImage\Transformer\Agnostic\VideoTransformer as AgnosticVideoTransformer; |
| 14 | +use RedditImage\Transformer\Imgur\ImageTransformer as ImgurImageTransformer; |
| 15 | +use RedditImage\Transformer\Imgur\VideoTransformer as ImgurVideoTransformer; |
| 16 | + |
| 17 | +class BeforeDisplayProcessor extends AbstractProcessor { |
| 18 | + public function __construct(Settings $settings) { |
| 19 | + parent::__construct($settings); |
| 20 | + |
| 21 | + if ($this->settings->getDisplayImage()) { |
| 22 | + $this->transformers[] = new AgnosticImageTransformer($this->settings); |
| 23 | + $this->transformers[] = new ImgurVideoTransformer($this->settings); |
| 24 | + $this->transformers[] = new ImgurImageTransformer($this->settings); |
| 25 | + } |
| 26 | + if ($this->settings->getDisplayVideo()) { |
| 27 | + $this->transformers[] = new AgnosticVideoTransformer($this->settings); |
| 28 | + } |
| 29 | + $this->transformers[] = new AgnosticLinkTransformer($this->settings); |
| 30 | + } |
| 31 | + |
| 32 | + /** |
| 33 | + * @param FreshRSS_Entry $entry |
| 34 | + * @return FreshRSS_Entry |
| 35 | + */ |
| 36 | + public function process($entry) { |
| 37 | + if (false === $this->isRedditLink($entry)) { |
| 38 | + return $entry; |
| 39 | + } |
| 40 | + |
| 41 | + $content = new Content($entry->content()); |
| 42 | + $improved = $this->getImprovedContent($content); |
| 43 | + $original = $this->getOriginalContent($content); |
| 44 | + $metadata = $this->getMetadataContent($content); |
| 45 | + |
| 46 | + if (!$this->settings->getDisplayThumbnails()) { |
| 47 | + $entry->_attributes('thumbnail', null); |
| 48 | + $entry->_attributes('enclosures', null); |
| 49 | + } |
| 50 | + $entry->_content("{$improved}{$content->getReal()}{$original}{$metadata}"); |
| 51 | + $entry->_link($content->getContentLink()); |
| 52 | + |
| 53 | + return $entry; |
| 54 | + } |
| 55 | + |
| 56 | + private function getImprovedContent(Content $content): string { |
| 57 | + $improved = $content->hasBeenPreprocessed() ? $content->getPreprocessed() : $this->processContent($content); |
| 58 | + |
| 59 | + if ($improved === '') { |
| 60 | + return ''; |
| 61 | + } |
| 62 | + |
| 63 | + $dom = new \DomDocument('1.0', 'UTF-8'); |
| 64 | + $dom->loadHTML($improved, LIBXML_NOERROR); |
| 65 | + |
| 66 | + if (!$this->settings->getDisplayImage()) { |
| 67 | + $images = $dom->getElementsByTagName('img'); |
| 68 | + // See https://www.php.net/manual/en/class.domnodelist.php#83390 |
| 69 | + for ($i = $images->length; --$i >= 0; ) { |
| 70 | + $image = $images->item($i); |
| 71 | + $image->parentNode->removeChild($image); |
| 72 | + } |
| 73 | + } |
| 74 | + |
| 75 | + if (!$this->settings->getDisplayVideo()) { |
| 76 | + $videos = $dom->getElementsByTagName('video'); |
| 77 | + // See https://www.php.net/manual/en/class.domnodelist.php#83390 |
| 78 | + for ($i = $videos->length; --$i >= 0; ) { |
| 79 | + $video = $videos->item($i); |
| 80 | + $video->parentNode->removeChild($video); |
| 81 | + } |
| 82 | + } |
| 83 | + |
| 84 | + if ($this->settings->getMutedVideo()) { |
| 85 | + $videos = $dom->getElementsByTagName('video'); |
| 86 | + foreach ($videos as $video) { |
| 87 | + $video->setAttribute('muted', 'true'); |
| 88 | + } |
| 89 | + $audios = $dom->getElementsByTagName('audio'); |
| 90 | + foreach ($audios as $audio) { |
| 91 | + $audio->setAttribute('muted', 'true'); |
| 92 | + } |
| 93 | + } |
| 94 | + |
| 95 | + return $dom->saveHTML(); |
| 96 | + } |
| 97 | + |
| 98 | + private function processContent(Content $content): string { |
| 99 | + foreach ($this->transformers as $transformer) { |
| 100 | + if (!$transformer->canTransform($content)) { |
| 101 | + continue; |
| 102 | + } |
| 103 | + |
| 104 | + try { |
| 105 | + return $transformer->transform($content); |
| 106 | + } catch (Throwable $e) { |
| 107 | + Minz_Log::error("{$e->__toString()} - {$content->getContentLink()}"); |
| 108 | + } |
| 109 | + } |
| 110 | + |
| 111 | + return ''; |
| 112 | + } |
| 113 | + |
| 114 | + private function getOriginalContent(Content $content): string { |
| 115 | + if ($this->settings->getDisplayOriginal()) { |
| 116 | + return $content->getRaw(); |
| 117 | + } |
| 118 | + |
| 119 | + return ''; |
| 120 | + } |
| 121 | + |
| 122 | + private function getMetadataContent(Content $content): string { |
| 123 | + if ($this->settings->getDisplayMetadata()) { |
| 124 | + return "<div>{$content->getMetadata()}</div>"; |
| 125 | + } |
| 126 | + |
| 127 | + return ''; |
| 128 | + } |
| 129 | +} |
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