--- /dev/null
+<?php
+/**
+ * @copyright Copyright (C) 2010-2023, the Friendica project
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace Friendica\Content\Text;
+
+use DOMDocument;
+use DOMElement;
+use DOMNode;
+use Friendica\Model\Photo;
+use Friendica\Model\Post;
+
+/**
+ * Tumblr Neue Post Format
+ * @see https://www.tumblr.com/docs/npf
+ */
+class NPF
+{
+ static public function fromBBCode(string $bbcode, int $uri_id): array
+ {
+ $npf = [];
+
+ $bbcode = self::prepareBody($bbcode);
+
+ $html = BBCode::convert($bbcode, false, BBCode::CONNECTORS);
+ if (empty($html)) {
+ return [];
+ }
+
+ $doc = new DOMDocument();
+ if (!@$doc->loadHTML(mb_convert_encoding($html, 'HTML-ENTITIES', 'UTF-8'))) {
+ return [];
+ }
+
+ $node = $doc->getElementsByTagName('body')->item(0);
+ foreach ($node->childNodes as $child) {
+ $npf = self::routeElements($child, $uri_id, $npf);
+ }
+
+ return self::addLinkBlock($uri_id, $npf);
+ }
+
+ public static function prepareBody(string $body): string
+ {
+ $shared = BBCode::fetchShareAttributes($body);
+ if (!empty($shared)) {
+ $body = $shared['shared'];
+ }
+
+ $body = BBCode::removeAttachment($body);
+
+ $body = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $body);
+
+ if (preg_match_all("#\[url=([^\]]+?)\]\s*\[img=([^\[\]]*)\]([^\[\]]*)\[\/img\]\s*\[/url\]#ism", $body, $pictures, PREG_SET_ORDER)) {
+ foreach ($pictures as $picture) {
+ if (preg_match('#/photo/.*-[01]\.#ism', $picture[2]) && (preg_match('#/photo/.*-0\.#ism', $picture[1]) || preg_match('#/photos/.*/image/#ism', $picture[1]))) {
+ $body = str_replace($picture[0], "\n\n[img=" . str_replace('-1.', '-0.', $picture[2]) . "]" . $picture[3] . "[/img]\n\n", $body);
+ }
+ }
+ }
+
+ $body = preg_replace("/\[img\=(.*?)\](.*?)\[\/img\]/ism", "\n\n[img=$1]$2[/img]\n\n", $body);
+
+ if (preg_match_all("#\[url=([^\]]+?)\]\s*\[img\]([^\[]+?)\[/img\]\s*\[/url\]#ism", $body, $pictures, PREG_SET_ORDER)) {
+ foreach ($pictures as $picture) {
+ if (preg_match('#/photo/.*-[01]\.#ism', $picture[2]) && (preg_match('#/photo/.*-0\.#ism', $picture[1]) || preg_match('#/photos/.*/image/#ism', $picture[1]))) {
+ $body = str_replace($picture[0], "\n\n[img]" . str_replace('-1.', '-0.', $picture[2]) . "[/img]\n\n", $body);
+ }
+ }
+ }
+
+ $body = preg_replace("/\[img\](.*?)\[\/img\]/ism", "\n\n[img]$1[/img]\n\n", $body);
+ $body = preg_replace("/\[audio\](.*?)\[\/audio\]/ism", "\n\n[audio]$1[/audio]\n\n", $body);
+ $body = preg_replace("/\[video\](.*?)\[\/video\]/ism", "\n\n[video]$1[/video]\n\n", $body);
+
+ do {
+ $oldbody = $body;
+ $body = str_replace(["\n\n\n"], ["\n\n"], $body);
+ } while ($oldbody != $body);
+
+ return trim($body);
+ }
+
+ static private function routeElements(DOMElement|DOMNode $child, int $uri_id, array $npf): array
+ {
+ switch ($child->tagName ?? '') {
+ case 'blockquote':
+ $npf = self::addTextBlock($child, $uri_id, $npf, 'indented');
+ break;
+
+ case 'h1':
+ $npf = self::addTextBlock($child, $uri_id, $npf, 'heading1');
+ break;
+
+ case 'h2':
+ $npf = self::addTextBlock($child, $uri_id, $npf, 'heading1');
+ break;
+
+ case 'h3':
+ $npf = self::addTextBlock($child, $uri_id, $npf, 'heading1');
+ break;
+
+ case 'h4':
+ $npf = self::addTextBlock($child, $uri_id, $npf, 'heading2');
+ break;
+
+ case 'h5':
+ $npf = self::addTextBlock($child, $uri_id, $npf, 'heading2');
+ break;
+
+ case 'h6':
+ $npf = self::addTextBlock($child, $uri_id, $npf, 'heading2');
+ break;
+
+ case 'ul':
+ $npf = self::addListBlock($child, $uri_id, $npf, false, 0);
+ break;
+
+ case 'ol':
+ $npf = self::addListBlock($child, $uri_id, $npf, true, 0);
+ break;
+
+ case 'hr':
+ case 'br':
+ break;
+
+ case 'pre':
+ case 'code':
+ $npf = self::addTextBlock($child, $uri_id, $npf, 'indented');
+ break;
+
+ case 'a':
+ $npf = self::addMediaBlock($child, $uri_id, $npf);
+ break;
+
+ case 'table':
+ // $child->ownerDocument->saveHTML($child)
+ break;
+
+ case 'img':
+ $npf = self::addImageBlock($child, $uri_id, $npf);
+ break;
+
+ default:
+ $npf = self::addTextBlock($child, $uri_id, $npf);
+ break;
+ }
+ return $npf;
+ }
+
+ static private function addImageBlock(DOMElement|DOMNode $child, int $uri_id, array $npf): array
+ {
+ $attributes = [];
+ foreach ($child->attributes as $key => $attribute) {
+ $attributes[$key] = $attribute->value;
+ }
+ if (empty($attributes['src'])) {
+ return $npf;
+ }
+
+ $entry = [
+ 'type' => 'image',
+ 'media' => [],
+ ];
+
+ if (!empty($attributes['alt'])) {
+ $entry['alt_text'] = $attributes['alt'];
+ }
+
+ if (!empty($attributes['title']) && ($attributes['alt'] ?? '' != $attributes['title'])) {
+ $entry['caption'] = $attributes['title'];
+ }
+
+ $rid = Photo::ridFromURI($attributes['src']);
+ if (!empty($rid)) {
+ $photos = Photo::selectToArray([], ['resource-id' => $rid]);
+ foreach ($photos as $photo) {
+ $entry['media'][] = [
+ 'type' => $photo['type'],
+ 'url' => str_replace('-0.', '-' . $photo['scale'] . '.', $attributes['src']),
+ 'width' => $photo['width'],
+ 'height' => $photo['height'],
+ ];
+ }
+ if (empty($attributes['alt']) && !empty($photos[0]['desc'])) {
+ $entry['alt_text'] = $photos[0]['desc'];
+ }
+ } elseif ($media = Post\Media::getByURL($uri_id, $attributes['src'], [Post\Media::IMAGE])) {
+ $entry['media'][] = [
+ 'type' => $media['mimetype'],
+ 'url' => $media['url'],
+ 'width' => $media['width'],
+ 'height' => $media['height'],
+ ];
+ if (empty($attributes['alt']) && !empty($media['description'])) {
+ $entry['alt_text'] = $media['description'];
+ }
+ } else {
+ $entry['media'][] = ['url' => $attributes['src']];
+ }
+
+ $npf[] = $entry;
+
+ return $npf;
+ }
+
+ static private function addMediaBlock(DOMElement|DOMNode $child, int $uri_id, array $npf): array
+ {
+ $attributes = [];
+ foreach ($child->attributes as $key => $attribute) {
+ $attributes[$key] = $attribute->value;
+ }
+ if (empty($attributes['href'])) {
+ return $npf;
+ }
+
+ $media = Post\Media::getByURL($uri_id, $attributes['href'], [Post\Media::AUDIO, Post\Media::VIDEO]);
+ if (!empty($media)) {
+ switch ($media['type']) {
+ case Post\Media::AUDIO:
+ $entry = [
+ 'type' => 'audio',
+ 'media' => [
+ 'type' => $media['mimetype'],
+ 'url' => $media['url'],
+ ]
+ ];
+
+ if (!empty($media['name'])) {
+ $entry['title'] = $media['name'];
+ } elseif (!empty($media['description'])) {
+ $entry['title'] = $media['description'];
+ }
+
+ $npf[] = self::addPoster($media, $entry);
+ break;
+
+ case Post\Media::VIDEO:
+ $entry = [
+ 'type' => 'video',
+ 'media' => [
+ 'type' => $media['mimetype'],
+ 'url' => $media['url'],
+ ]
+ ];
+
+ $npf[] = self::addPoster($media, $entry);
+ break;
+ }
+ } else {
+ $npf[] = [
+ 'type' => 'text',
+ 'text' => $child->textContent,
+ 'formatting' => [
+ 'start' => 0,
+ 'end' => strlen($child->textContent),
+ 'type' => 'link',
+ 'url' => $attributes['href']
+ ]
+ ];
+ }
+ return $npf;
+ }
+
+ static private function addPoster(array $media, array $entry): array
+ {
+ $poster = [];
+ if (!empty($media['preview'])) {
+ $poster['url'] = $media['preview'];
+ }
+ if (!empty($media['preview-width'])) {
+ $poster['width'] = $media['preview-width'];
+ }
+ if (!empty($media['preview-height'])) {
+ $poster['height'] = $media['preview-height'];
+ }
+ if (!empty($poster)) {
+ $entry['poster'] = $poster;
+ }
+ return $entry;
+ }
+
+ static private function fetchText(DOMElement|DOMNode $child, array $text = ['text' => '', 'formatting' => []]): array
+ {
+ foreach ($child->childNodes as $node) {
+ $start = strlen($text['text']);
+
+ switch ($node->nodeName) {
+ case 'b':
+ case 'strong':
+ $type = 'bold';
+ break;
+
+ case 'i':
+ case 'em':
+ $type = 'italic';
+ break;
+
+ case 's':
+ $type = 'strikethrough';
+ break;
+
+ default:
+ $type = '';
+ break;
+ }
+ if ($node->nodeName == 'br') {
+ $text['text'] .= "\n";
+ } else {
+ $text['text'] .= $node->textContent;
+ }
+ if (!empty($type)) {
+ $text['formatting'][] = ['start' => $start, 'end' => strlen($text['text']), 'type' => $type];
+ }
+ }
+ return $text;
+ }
+
+ static private function addTextBlock(DOMElement|DOMNode $child, int $uri_id, array $npf, string $subtype = ''): array
+ {
+ if (empty($subtype) && (($child->childElementCount) ?? 0 == 1) && ($child->textContent == $child->firstChild->textContent)) {
+ return self::routeElements($child->firstChild, $uri_id, $npf);
+ }
+
+ $element = ['type' => 'text'];
+
+ if (!empty($subtype)) {
+ $element['subtype'] = $subtype;
+ }
+
+ $text = self::fetchText($child);
+
+ $element['text'] = $text['text'];
+ $element['formatting'] = $text['formatting'];
+
+ if (empty($subtype)) {
+ switch ($child->tagName ?? '') {
+ case 'b':
+ case 'strong':
+ $element['formatting'][] = ['start' => 0, 'end' => strlen($element['text']), 'type' => 'bold'];
+ break;
+
+ case 'i':
+ case 'em':
+ $element['formatting'][] = ['start' => 0, 'end' => strlen($element['text']), 'type' => 'italic'];
+ break;
+
+ case 's':
+ $element['formatting'][] = ['start' => 0, 'end' => strlen($element['text']), 'type' => 'strikethrough'];
+ break;
+
+ case 'span':
+ case 'p':
+ case 'div':
+ case 'details';
+ case '':
+ break;
+ default:
+ print_r($element);
+ die($child->tagName . "\n");
+ break;
+ }
+ }
+
+ if (empty($element['formatting'])) {
+ unset($element['formatting']);
+ }
+
+ $npf[] = $element;
+
+ return $npf;
+ }
+
+ static private function addListBlock(DOMElement|DOMNode $child, int $uri_id, array $npf, bool $ordered, int $level): array
+ {
+ foreach ($child->childNodes as $node) {
+ switch ($node->nodeName) {
+ case 'ul':
+ $npf = self::addListBlock($node, $uri_id, $npf, false, $level++);
+ case 'ol':
+ $npf = self::addListBlock($node, $uri_id, $npf, true, $level++);
+ case 'li':
+ $text = self::fetchText($node);
+
+ $entry = [
+ 'type' => 'text',
+ 'subtype' => $ordered ? 'ordered-list-item' : 'unordered-list-item',
+ 'text' => $text['text']
+ ];
+ if ($level > 0) {
+ $entry['indent_level'] = $level;
+ }
+ if (!empty($text['formatting'])) {
+ $entry['formatting'] = $text['formatting'];
+ }
+ $npf[] = $entry;
+ }
+ }
+
+ return $npf;
+ }
+
+ static private function addLinkBlock(int $uri_id, array $npf): array
+ {
+ foreach (Post\Media::getByURIId($uri_id, [Post\Media::HTML]) as $link) {
+ $host = parse_url($link['url'], PHP_URL_HOST);
+ if (in_array($host, ['www.youtube.com', 'youtu.be'])) {
+ $entry = [
+ 'type' => 'video',
+ 'provider' => 'youtube',
+ 'url' => $link['url'],
+ ];
+ } elseif (in_array($host, ['vimeo.com'])) {
+ $entry = [
+ 'type' => 'video',
+ 'provider' => 'vimeo',
+ 'url' => $link['url'],
+ ];
+ } elseif (in_array($host, ['open.spotify.com'])) {
+ $entry = [
+ 'type' => 'audio',
+ 'provider' => 'spotify',
+ 'url' => $link['url'],
+ ];
+ } else {
+ $entry = [
+ 'type' => 'link',
+ 'url' => $link['url'],
+ ];
+ if (!empty($link['name'])) {
+ $entry['title'] = $link['name'];
+ }
+ if (!empty($link['description'])) {
+ $entry['description'] = $link['description'];
+ }
+ if (!empty($link['author-name'])) {
+ $entry['author'] = $link['author-name'];
+ }
+ if (!empty($link['publisher-name'])) {
+ $entry['site_name'] = $link['publisher-name'];
+ }
+ }
+
+ $npf[] = self::addPoster($link, $entry);
+ }
+ return $npf;
+ }
+}
projects / friendica.git / commitdiff