3 * @copyright Copyright (C) 2010-2022, the Friendica project
5 * @license GNU AGPL version 3 or any later version
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Affero General Public License for more details.
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <https://www.gnu.org/licenses/>.
22 namespace Friendica\Content\Text;
27 use Friendica\Content\ContactSelector;
28 use Friendica\Content\Item;
29 use Friendica\Content\OEmbed;
30 use Friendica\Content\PageInfo;
31 use Friendica\Content\Smilies;
32 use Friendica\Core\Hook;
33 use Friendica\Core\Logger;
34 use Friendica\Core\Protocol;
35 use Friendica\Core\Renderer;
37 use Friendica\Model\Contact;
38 use Friendica\Model\Event;
39 use Friendica\Model\Photo;
40 use Friendica\Model\Post;
41 use Friendica\Model\Tag;
42 use Friendica\Network\HTTPClient\Client\HttpClientAccept;
43 use Friendica\Network\HTTPClient\Client\HttpClientOptions;
44 use Friendica\Object\Image;
45 use Friendica\Protocol\Activity;
46 use Friendica\Util\Images;
47 use Friendica\Util\Map;
48 use Friendica\Util\ParseUrl;
49 use Friendica\Util\Proxy;
50 use Friendica\Util\Strings;
51 use Friendica\Util\XML;
55 // Update this value to the current date whenever changes are made to BBCode::convert
56 const VERSION = '2021-07-28';
66 const ACTIVITYPUB = 9;
68 const TOP_ANCHOR = '<br class="top-anchor">';
69 const BOTTOM_ANCHOR = '<br class="button-anchor">';
71 * Fetches attachment data that were generated the old way
73 * @param string $body Message body
75 * 'type' -> Message type ('link', 'video', 'photo')
76 * 'text' -> Text before the shared message
77 * 'after' -> Text after the shared message
78 * 'image' -> Preview image of the message
79 * 'url' -> Url to the attached message
80 * 'title' -> Title of the attachment
81 * 'description' -> Description of the attachment
82 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
84 private static function getOldAttachmentData(string $body): array
88 // Simplify image codes
89 $body = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $body);
91 if (preg_match_all("(\[class=(.*?)\](.*?)\[\/class\])ism", $body, $attached, PREG_SET_ORDER)) {
92 foreach ($attached as $data) {
93 if (!in_array($data[1], ['type-link', 'type-video', 'type-photo'])) {
97 $post['type'] = substr($data[1], 5);
99 $pos = strpos($body, $data[0]);
101 $post['text'] = trim(substr($body, 0, $pos));
102 $post['after'] = trim(substr($body, $pos + strlen($data[0])));
104 $post['text'] = trim(str_replace($data[0], '', $body));
108 $attacheddata = $data[2];
110 if (preg_match("/\[img\](.*?)\[\/img\]/ism", $attacheddata, $matches)) {
112 $picturedata = Images::getInfoFromURLCached($matches[1]);
115 if (($picturedata[0] >= 500) && ($picturedata[0] >= $picturedata[1])) {
116 $post['image'] = $matches[1];
118 $post['preview'] = $matches[1];
123 if (preg_match("/\[bookmark\=(.*?)\](.*?)\[\/bookmark\]/ism", $attacheddata, $matches)) {
124 $post['url'] = $matches[1];
125 $post['title'] = $matches[2];
127 if (!empty($post['url']) && (in_array($post['type'], ['link', 'video']))
128 && preg_match("/\[url\=(.*?)\](.*?)\[\/url\]/ism", $attacheddata, $matches)) {
129 $post['url'] = $matches[1];
132 // Search for description
133 if (preg_match("/\[quote\](.*?)\[\/quote\]/ism", $attacheddata, $matches)) {
134 $post['description'] = $matches[1];
142 * Fetches attachment data that were generated with the "attachment" element
144 * @param string $body Message body
146 * 'type' -> Message type ('link', 'video', 'photo')
147 * 'text' -> Text before the shared message
148 * 'after' -> Text after the shared message
149 * 'image' -> Preview image of the message
150 * 'url' -> Url to the attached message
151 * 'title' -> Title of the attachment
152 * 'description' -> Description of the attachment
153 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
155 public static function getAttachmentData(string $body): array
157 DI::profiler()->startRecording('rendering');
166 'provider_name' => '',
167 'provider_url' => '',
172 if (!preg_match("/(.*)\[attachment(.*?)\](.*?)\[\/attachment\](.*)/ism", $body, $match)) {
173 DI::profiler()->stopRecording();
174 return self::getOldAttachmentData($body);
177 $attributes = $match[2];
179 $data['text'] = trim($match[1]);
181 foreach (['type', 'url', 'title', 'image', 'preview', 'publisher_name', 'publisher_url', 'author_name', 'author_url'] as $field) {
182 preg_match('/' . preg_quote($field, '/') . '=("|\')(.*?)\1/ism', $attributes, $matches);
183 $value = $matches[2] ?? '';
187 case 'publisher_name':
188 $data['provider_name'] = html_entity_decode($value, ENT_QUOTES, 'UTF-8');
191 case 'publisher_url':
192 $data['provider_url'] = html_entity_decode($value, ENT_QUOTES, 'UTF-8');
196 $data['author_name'] = html_entity_decode($value, ENT_QUOTES, 'UTF-8');
197 if ($data['provider_name'] == $data['author_name']) {
198 $data['author_name'] = '';
203 $data['author_url'] = html_entity_decode($value, ENT_QUOTES, 'UTF-8');
204 if ($data['provider_url'] == $data['author_url']) {
205 $data['author_url'] = '';
210 $value = self::convert(html_entity_decode($value, ENT_QUOTES, 'UTF-8'), false, true);
211 $value = html_entity_decode($value, ENT_QUOTES, 'UTF-8');
212 $value = str_replace(['[', ']'], ['[', ']'], $value);
213 $data['title'] = $value;
216 $data[$field] = html_entity_decode($value, ENT_QUOTES, 'UTF-8');
222 if (!in_array($data['type'], ['link', 'audio', 'photo', 'video'])) {
223 DI::profiler()->stopRecording();
227 $data['description'] = trim($match[3]);
229 $data['after'] = trim($match[4]);
231 $parts = parse_url($data['url']);
232 if (!empty($parts['scheme']) && !empty($parts['host'])) {
233 if (empty($data['provider_name'])) {
234 $data['provider_name'] = $parts['host'];
236 if (empty($data['provider_url']) || empty(parse_url($data['provider_url'], PHP_URL_SCHEME))) {
237 $data['provider_url'] = $parts['scheme'] . '://' . $parts['host'];
239 if (!empty($parts['port'])) {
240 $data['provider_url'] .= ':' . $parts['port'];
245 DI::profiler()->stopRecording();
249 public static function getAttachedData(string $body, array $item = []): array
253 - type: link, video, photo
261 DI::profiler()->startRecording('rendering');
262 $has_title = !empty($item['title']);
263 $plink = $item['plink'] ?? '';
264 $post = self::getAttachmentData($body);
266 // Get all linked images with alternative image description
267 if (preg_match_all("/\[img=(http[^\[\]]*)\]([^\[\]]*)\[\/img\]/Usi", $body, $pictures, PREG_SET_ORDER)) {
268 foreach ($pictures as $picture) {
269 if (Photo::isLocal($picture[1])) {
270 $post['images'][] = ['url' => str_replace('-1.', '-0.', $picture[1]), 'description' => $picture[2]];
272 $post['remote_images'][] = ['url' => $picture[1], 'description' => $picture[2]];
275 if (!empty($post['images']) && !empty($post['images'][0]['description'])) {
276 $post['image_description'] = $post['images'][0]['description'];
280 if (preg_match_all("/\[img\]([^\[\]]*)\[\/img\]/Usi", $body, $pictures, PREG_SET_ORDER)) {
281 foreach ($pictures as $picture) {
282 if (Photo::isLocal($picture[1])) {
283 $post['images'][] = ['url' => str_replace('-1.', '-0.', $picture[1]), 'description' => ''];
285 $post['remote_images'][] = ['url' => $picture[1], 'description' => ''];
290 if (!isset($post['type'])) {
291 $post['text'] = $body;
294 // Simplify image codes
295 $post['text'] = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $post['text']);
296 $post['text'] = preg_replace("/\[img\=(.*?)\](.*?)\[\/img\]/ism", '[img]$1[/img]', $post['text']);
298 // if nothing is found, it maybe having an image.
299 if (!isset($post['type'])) {
300 if (preg_match_all("#\[url=([^\]]+?)\]\s*\[img\]([^\[]+?)\[/img\]\s*\[/url\]#ism", $post['text'], $pictures, PREG_SET_ORDER)) {
301 if ((count($pictures) == 1) && !$has_title) {
302 if (!empty($item['object-type']) && ($item['object-type'] == Activity\ObjectType::IMAGE)) {
303 // Replace the preview picture with the real picture
304 $url = str_replace('-1.', '-0.', $pictures[0][2]);
305 $data = ['url' => $url, 'type' => 'photo'];
307 // Checking, if the link goes to a picture
308 $data = ParseUrl::getSiteinfoCached($pictures[0][1]);
312 // Sometimes photo posts to the own album are not detected at the start.
313 // So we seem to cannot use the cache for these cases. That's strange.
314 if (($data['type'] != 'photo') && strstr($pictures[0][1], '/photos/')) {
315 $data = ParseUrl::getSiteinfo($pictures[0][1]);
318 if ($data['type'] == 'photo') {
319 $post['type'] = 'photo';
320 if (isset($data['images'][0])) {
321 $post['image'] = $data['images'][0]['src'];
322 $post['url'] = $data['url'];
324 $post['image'] = $data['url'];
327 $post['preview'] = $pictures[0][2];
328 $post['text'] = trim(str_replace($pictures[0][0], '', $post['text']));
330 $imgdata = Images::getInfoFromURLCached($pictures[0][1]);
331 if (($imgdata) && substr($imgdata['mime'], 0, 6) == 'image/') {
332 $post['type'] = 'photo';
333 $post['image'] = $pictures[0][1];
334 $post['preview'] = $pictures[0][2];
335 $post['text'] = trim(str_replace($pictures[0][0], '', $post['text']));
338 } elseif (count($pictures) > 0) {
339 if (count($pictures) > 4) {
340 $post['type'] = 'link';
341 $post['url'] = $plink;
343 $post['type'] = 'photo';
346 $post['image'] = $pictures[0][2];
348 foreach ($pictures as $picture) {
349 $post['text'] = trim(str_replace($picture[0], '', $post['text']));
352 } elseif (preg_match_all("(\[img\](.*?)\[\/img\])ism", $post['text'], $pictures, PREG_SET_ORDER)) {
354 $post['type'] = 'link';
355 $post['url'] = $plink;
357 $post['type'] = 'photo';
360 $post['image'] = $pictures[0][1];
361 foreach ($pictures as $picture) {
362 $post['text'] = trim(str_replace($picture[0], '', $post['text']));
366 // Test for the external links
367 preg_match_all("(\[url\](.*?)\[\/url\])ism", $post['text'], $links1, PREG_SET_ORDER);
368 preg_match_all("(\[url\=(.*?)\].*?\[\/url\])ism", $post['text'], $links2, PREG_SET_ORDER);
370 $links = array_merge($links1, $links2);
372 // If there is only a single one, then use it.
373 // This should cover link posts via API.
374 if ((count($links) == 1) && !isset($post['preview']) && !$has_title) {
375 $post['type'] = 'link';
376 $post['url'] = $links[0][1];
379 // Simplify "video" element
380 $post['text'] = preg_replace('(\[video.*?\ssrc\s?=\s?([^\s\]]+).*?\].*?\[/video\])ism', '[video]$1[/video]', $post['text']);
382 // Now count the number of external media links
383 preg_match_all("(\[vimeo\](.*?)\[\/vimeo\])ism", $post['text'], $links1, PREG_SET_ORDER);
384 preg_match_all("(\[youtube\\](.*?)\[\/youtube\\])ism", $post['text'], $links2, PREG_SET_ORDER);
385 preg_match_all("(\[video\\](.*?)\[\/video\\])ism", $post['text'], $links3, PREG_SET_ORDER);
386 preg_match_all("(\[audio\\](.*?)\[\/audio\\])ism", $post['text'], $links4, PREG_SET_ORDER);
388 // Add them to the other external links
389 $links = array_merge($links, $links1, $links2, $links3, $links4);
391 // Are there more than one?
392 if (count($links) > 1) {
393 // The post will be the type "text", which means a blog post
394 unset($post['type']);
395 $post['url'] = $plink;
398 if (!isset($post['type'])) {
399 $post['type'] = 'text';
402 if (($post['type'] == 'photo') && empty($post['images']) && !empty($post['remote_images'])) {
403 $post['images'] = $post['remote_images'];
404 $post['image'] = $post['images'][0]['url'];
405 if (!empty($post['images']) && !empty($post['images'][0]['description'])) {
406 $post['image_description'] = $post['images'][0]['description'];
409 unset($post['remote_images']);
410 } elseif (isset($post['url']) && ($post['type'] == 'video')) {
411 $data = ParseUrl::getSiteinfoCached($post['url']);
413 if (isset($data['images'][0])) {
414 $post['image'] = $data['images'][0]['src'];
416 } elseif (preg_match_all("#\[url=([^\]]+?)\]\s*\[img\]([^\[]+?)\[/img\]\s*\[/url\]#ism", $post['text'], $pictures, PREG_SET_ORDER)) {
417 foreach ($pictures as $picture) {
418 $post['text'] = trim(str_replace($picture[0], '', $post['text']));
422 DI::profiler()->stopRecording();
427 * Remove [attachment] BBCode and replaces it with a regular [url]
429 * @param string $body
430 * @param boolean $no_link_desc No link description
431 * @return string with replaced body
433 public static function removeAttachment(string $body, bool $no_link_desc = false): string
435 return preg_replace_callback("/\s*\[attachment (.*?)\](.*?)\[\/attachment\]\s*/ism",
436 function ($match) use ($body, $no_link_desc) {
437 $attach_data = self::getAttachmentData($match[0]);
438 if (empty($attach_data['url'])) {
440 } elseif (strpos(str_replace($match[0], '', $body), $attach_data['url']) !== false) {
442 } elseif (empty($attach_data['title']) || $no_link_desc) {
443 return " \n[url]" . $attach_data['url'] . "[/url]\n";
445 return " \n[url=" . $attach_data['url'] . ']' . $attach_data['title'] . "[/url]\n";
451 * Converts a BBCode text into plaintext
453 * @param string $text
454 * @param bool $keep_urls Whether to keep URLs in the resulting plaintext
457 public static function toPlaintext(string $text, bool $keep_urls = true): string
459 DI::profiler()->startRecording('rendering');
460 // Remove pictures in advance to avoid unneeded proxy calls
461 $text = preg_replace("/\[img\=(.*?)\](.*?)\[\/img\]/ism", ' $2 ', $text);
462 $text = preg_replace("/\[img.*?\[\/img\]/ism", ' ', $text);
465 $text = self::removeAttachment($text);
467 $naked_text = HTML::toPlaintext(self::convert($text, false, 0, true), 0, !$keep_urls);
469 DI::profiler()->stopRecording();
473 private static function proxyUrl(string $image, int $simplehtml = self::INTERNAL, int $uriid = 0, string $size = ''): string
475 // Only send proxied pictures to API and for internal display
476 if (!in_array($simplehtml, [self::INTERNAL, self::API])) {
478 } elseif ($uriid > 0) {
479 return Post\Link::getByLink($uriid, $image, $size);
481 return Proxy::proxifyUrl($image, $size);
486 * This function changing the visual size (not the real size) of images.
487 * The function does not work for pictures with an alternate text description.
488 * This could only be changed by using some new "img" BBCode format.
490 * @param string $srctext The body with images
491 * @return string The body with possibly scaled images
493 public static function scaleExternalImages(string $srctext): string
495 DI::profiler()->startRecording('rendering');
498 // Simplify image links
499 $s = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $s);
502 $c = preg_match_all('/\[img.*?\](.*?)\[\/img\]/ism', $s, $matches, PREG_SET_ORDER);
504 foreach ($matches as $mtch) {
505 Logger::debug('scale_external_image', ['image' => $mtch[1]]);
507 $hostname = str_replace('www.', '', substr(DI::baseUrl(), strpos(DI::baseUrl(), '://') + 3));
508 if (stristr($mtch[1], $hostname)) {
512 $curlResult = DI::httpClient()->get($mtch[1], HttpClientAccept::IMAGE);
513 if (!$curlResult->isSuccess()) {
517 Logger::debug('Got picture', ['Content-Type' => $curlResult->getHeader('Content-Type'), 'url' => $mtch[1]]);
519 $i = $curlResult->getBody();
520 $type = $curlResult->getContentType();
521 $type = Images::getMimeTypeByData($i, $mtch[1], $type);
524 $Image = new Image($i, $type);
525 if ($Image->isValid()) {
526 $orig_width = $Image->getWidth();
527 $orig_height = $Image->getHeight();
529 if ($orig_width > 640 || $orig_height > 640) {
530 $Image->scaleDown(640);
531 $new_width = $Image->getWidth();
532 $new_height = $Image->getHeight();
533 Logger::debug('External images scaled', ['orig_width' => $orig_width, 'new_width' => $new_width, 'orig_height' => $orig_height, 'new_height' => $new_height, 'match' => $mtch[0]]);
536 '[img=' . $new_width . 'x' . $new_height. ']' . $mtch[1] . '[/img]'
540 Logger::debug('New string', ['image' => $s]);
547 DI::profiler()->stopRecording();
552 * Truncates imported message body string length to max_import_size
554 * The purpose of this function is to apply system message length limits to
555 * imported messages without including any embedded photos in the length
557 * @param string $body
559 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
561 public static function limitBodySize(string $body): string
563 DI::profiler()->startRecording('rendering');
564 $maxlen = DI::config()->get('config', 'max_import_size', 0);
566 // If the length of the body, including the embedded images, is smaller
567 // than the maximum, then don't waste time looking for the images
568 if ($maxlen && (strlen($body) > $maxlen)) {
570 Logger::info('the total body length exceeds the limit', ['maxlen' => $maxlen, 'body_len' => strlen($body)]);
576 $img_start = strpos($orig_body, '[img');
577 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
578 $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
579 while (($img_st_close !== false) && ($img_end !== false)) {
581 $img_st_close++; // make it point to AFTER the closing bracket
582 $img_end += $img_start;
583 $img_end += strlen('[/img]');
585 if (!strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
586 // This is an embedded image
588 if (($textlen + $img_start) > $maxlen) {
589 if ($textlen < $maxlen) {
590 Logger::debug('the limit happens before an embedded image');
591 $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
595 $new_body = $new_body . substr($orig_body, 0, $img_start);
596 $textlen += $img_start;
599 $new_body = $new_body . substr($orig_body, $img_start, $img_end - $img_start);
602 if (($textlen + $img_end) > $maxlen) {
603 if ($textlen < $maxlen) {
604 Logger::debug('the limit happens before the end of a non-embedded image');
605 $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
609 $new_body = $new_body . substr($orig_body, 0, $img_end);
610 $textlen += $img_end;
613 $orig_body = substr($orig_body, $img_end);
615 if ($orig_body === false) {
616 // in case the body ends on a closing image tag
620 $img_start = strpos($orig_body, '[img');
621 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
622 $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
625 if (($textlen + strlen($orig_body)) > $maxlen) {
626 if ($textlen < $maxlen) {
627 Logger::debug('the limit happens after the end of the last image');
628 $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
631 Logger::debug('the text size with embedded images extracted did not violate the limit');
632 $new_body = $new_body . $orig_body;
635 DI::profiler()->stopRecording();
638 DI::profiler()->stopRecording();
644 * Processes [attachment] tags
646 * Note: Can produce a [bookmark] tag in the returned string
648 * @param string $text
649 * @param integer $simplehtml
650 * @param bool $tryoembed
654 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
656 public static function convertAttachment(string $text, int $simplehtml = self::INTERNAL, bool $tryoembed = true, array $data = [], int $uriid = 0): string
658 DI::profiler()->startRecording('rendering');
659 $data = $data ?: self::getAttachmentData($text);
660 if (empty($data) || empty($data['url'])) {
661 DI::profiler()->stopRecording();
665 if (isset($data['title'])) {
666 $data['title'] = strip_tags($data['title']);
667 $data['title'] = str_replace(['http://', 'https://'], '', $data['title']);
672 if (((strpos($data['text'], '[img=') !== false) || (strpos($data['text'], '[img]') !== false) || DI::config()->get('system', 'always_show_preview')) && !empty($data['image'])) {
673 $data['preview'] = $data['image'];
679 if ($tryoembed && OEmbed::isAllowedURL($data['url'])) {
680 $return = OEmbed::getHTML($data['url'], $data['title']);
682 throw new Exception('OEmbed is disabled for this attachment.');
684 } catch (Exception $e) {
685 $data['title'] = ($data['title'] ?? '') ?: $data['url'];
687 if ($simplehtml != self::CONNECTORS) {
688 $return = sprintf('<div class="type-%s">', $data['type']);
691 if (!empty($data['title']) && !empty($data['url'])) {
692 if (!empty($data['image']) && empty($data['text']) && ($data['type'] == 'photo')) {
693 $return .= sprintf('<a href="%s" target="_blank" rel="noopener noreferrer"><img src="%s" alt="" title="%s" class="attachment-image" /></a>', $data['url'], self::proxyUrl($data['image'], $simplehtml, $uriid), $data['title']);
695 if (!empty($data['image'])) {
696 $return .= sprintf('<a href="%s" target="_blank" rel="noopener noreferrer"><img src="%s" alt="" title="%s" class="attachment-image" /></a><br>', $data['url'], self::proxyUrl($data['image'], $simplehtml, $uriid), $data['title']);
697 } elseif (!empty($data['preview'])) {
698 $return .= sprintf('<a href="%s" target="_blank" rel="noopener noreferrer"><img src="%s" alt="" title="%s" class="attachment-preview" /></a><br>', $data['url'], self::proxyUrl($data['preview'], $simplehtml, $uriid), $data['title']);
700 $return .= sprintf('<h4><a href="%s" target="_blank" rel="noopener noreferrer">%s</a></h4>', $data['url'], $data['title']);
704 if (!empty($data['description']) && $data['description'] != $data['title']) {
706 $return .= sprintf('<blockquote>%s</blockquote>', trim(HTML::purify($data['description'])));
709 if (!empty($data['provider_url']) && !empty($data['provider_name'])) {
710 if (!empty($data['author_name'])) {
711 $return .= sprintf('<sup><a href="%s" target="_blank" rel="noopener noreferrer">%s (%s)</a></sup>', $data['provider_url'], $data['author_name'], $data['provider_name']);
713 $return .= sprintf('<sup><a href="%s" target="_blank" rel="noopener noreferrer">%s</a></sup>', $data['provider_url'], $data['provider_name']);
717 if ($simplehtml != self::CONNECTORS) {
722 DI::profiler()->stopRecording();
723 return trim(($data['text'] ?? '') . ' ' . $return . ' ' . ($data['after'] ?? ''));
726 public static function removeShareInformation(string $text, bool $plaintext = false, bool $nolink = false): string
728 DI::profiler()->startRecording('rendering');
729 $data = self::getAttachmentData($text);
732 DI::profiler()->stopRecording();
735 DI::profiler()->stopRecording();
736 return $data['text'] . ($data['after'] ?? '');
739 $title = htmlentities($data['title'] ?? '', ENT_QUOTES, 'UTF-8', false);
740 $text = htmlentities($data['text'], ENT_QUOTES, 'UTF-8', false);
741 if ($plaintext || (($title != '') && strstr($text, $title))) {
742 $data['title'] = $data['url'];
743 } elseif (($text != '') && strstr($title, $text)) {
744 $data['text'] = $data['title'];
745 $data['title'] = $data['url'];
748 if (empty($data['text']) && !empty($data['title']) && empty($data['url'])) {
749 DI::profiler()->stopRecording();
750 return $data['title'] . $data['after'];
753 // If the link already is included in the post, don't add it again
754 if (!empty($data['url']) && strpos($data['text'], $data['url'])) {
755 DI::profiler()->stopRecording();
756 return $data['text'] . $data['after'];
759 $text = $data['text'];
761 if (!empty($data['url']) && !empty($data['title'])) {
762 $text .= "\n[url=" . $data['url'] . ']' . $data['title'] . '[/url]';
763 } elseif (!empty($data['url'])) {
764 $text .= "\n[url]" . $data['url'] . '[/url]';
767 DI::profiler()->stopRecording();
768 return $text . "\n" . $data['after'];
772 * Converts [url] BBCodes in a format that looks fine on Mastodon. (callback function)
774 * @param array $match Array with the matching values
775 * @return string reformatted link including HTML codes
777 private static function convertUrlForActivityPubCallback(array $match): string
781 if (isset($match[2]) && ($match[1] != $match[2])) {
785 $parts = parse_url($url);
786 if (!isset($parts['scheme'])) {
790 return self::convertUrlForActivityPub($url);
794 * Converts [url] BBCodes in a format that looks fine on ActivityPub systems.
796 * @param string $url URL that is about to be reformatted
797 * @return string reformatted link including HTML codes
799 private static function convertUrlForActivityPub(string $url): string
801 return sprintf('<a href="%s" target="_blank" rel="noopener noreferrer">%s</a>', $url, self::getStyledURL($url));
805 * Converts an URL in a nicer format (without the scheme and possibly shortened)
807 * @param string $url URL that is about to be reformatted
808 * @return string reformatted link
810 private static function getStyledURL(string $url): string
812 $parts = parse_url($url);
813 $scheme = $parts['scheme'] . '://';
814 $styled_url = str_replace($scheme, '', $url);
816 if (strlen($styled_url) > 30) {
817 $styled_url = substr($styled_url, 0, 30) . "…";
824 * [noparse][i]italic[/i][/noparse] turns into
825 * [noparse][ i ]italic[ /i ][/noparse],
826 * to hide them from parser.
828 * @param array $match
831 private static function escapeNoparseCallback(array $match): string
833 $whole_match = $match[0];
834 $captured = $match[1];
835 $spacefied = preg_replace("/\[(.*?)\]/", "[ $1 ]", $captured);
836 $new_str = str_replace($captured, $spacefied, $whole_match);
841 * The previously spacefied [noparse][ i ]italic[ /i ][/noparse],
842 * now turns back and the [noparse] tags are trimed
843 * returning [i]italic[/i]
845 * @param array $match
848 private static function unescapeNoparseCallback(array $match): string
850 $captured = $match[1];
851 $unspacefied = preg_replace("/\[ (.*?)\ ]/", "[$1]", $captured);
856 * Returns the bracket character positions of a set of opening and closing BBCode tags, optionally skipping first
859 * @param string $text Text to search
860 * @param string $name Tag name
861 * @param int $occurrences Number of first occurrences to skip
862 * @return boolean|array
864 public static function getTagPosition(string $text, string $name, int $occurrences = 0)
866 DI::profiler()->startRecording('rendering');
867 if ($occurrences < 0) {
872 for ($i = 0; $i <= $occurrences; $i++) {
873 if ($start_open !== false) {
874 $start_open = strpos($text, '[' . $name, $start_open + 1); // allow [name= type tags
878 if ($start_open === false) {
879 DI::profiler()->stopRecording();
883 $start_equal = strpos($text, '=', $start_open);
884 $start_close = strpos($text, ']', $start_open);
886 if ($start_close === false) {
887 DI::profiler()->stopRecording();
893 $end_open = strpos($text, '[/' . $name . ']', $start_close);
895 if ($end_open === false) {
896 DI::profiler()->stopRecording();
902 'open' => $start_open,
903 'close' => $start_close
907 'close' => $end_open + strlen('[/' . $name . ']')
911 if ($start_equal !== false) {
912 $res['start']['equal'] = $start_equal + 1;
915 DI::profiler()->stopRecording();
920 * Performs a preg_replace within the boundaries of all named BBCode tags in a text
922 * @param string $pattern Preg pattern string
923 * @param string $replace Preg replace string
924 * @param string $name BBCode tag name
925 * @param string $text Text to search
928 public static function pregReplaceInTag(string $pattern, string $replace, string $name, string $text): string
930 DI::profiler()->startRecording('rendering');
932 $pos = self::getTagPosition($text, $name, $occurrences);
933 while ($pos !== false && $occurrences++ < 1000) {
934 $start = substr($text, 0, $pos['start']['open']);
935 $subject = substr($text, $pos['start']['open'], $pos['end']['close'] - $pos['start']['open']);
936 $end = substr($text, $pos['end']['close']);
937 if ($end === false) {
941 $subject = preg_replace($pattern, $replace, $subject);
942 $text = $start . $subject . $end;
944 $pos = self::getTagPosition($text, $name, $occurrences);
947 DI::profiler()->stopRecording();
951 private static function extractImagesFromItemBody(string $body): array
958 $img_start = strpos($orig_body, '[img');
959 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
960 $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
961 while (($img_st_close !== false) && ($img_end !== false)) {
962 $img_st_close++; // make it point to AFTER the closing bracket
963 $img_end += $img_start;
965 if (!strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
966 // This is an embedded image
967 $saved_image[$cnt] = substr($orig_body, $img_start + $img_st_close, $img_end - ($img_start + $img_st_close));
968 $new_body = $new_body . substr($orig_body, 0, $img_start) . '[$#saved_image' . $cnt . '#$]';
972 $new_body = $new_body . substr($orig_body, 0, $img_end + strlen('[/img]'));
975 $orig_body = substr($orig_body, $img_end + strlen('[/img]'));
977 if ($orig_body === false) {
978 // in case the body ends on a closing image tag
982 $img_start = strpos($orig_body, '[img');
983 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
984 $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
987 $new_body = $new_body . $orig_body;
989 return ['body' => $new_body, 'images' => $saved_image];
992 private static function interpolateSavedImagesIntoItemBody(int $uriid, string $body, array $images): string
997 foreach ($images as $image) {
998 // We're depending on the property of 'foreach' (specified on the PHP website) that
999 // it loops over the array starting from the first element and going sequentially
1000 // to the last element
1001 $newbody = str_replace('[$#saved_image' . $cnt . '#$]',
1002 '<img src="' . self::proxyUrl($image, self::INTERNAL, $uriid) . '" alt="' . DI::l10n()->t('Image/photo') . '" />', $newbody);
1010 * @param string $text A BBCode string
1011 * @return array Empty array if no share tag is present or the following array, missing attributes end up empty strings:
1012 * - comment : Text before the opening share tag
1013 * - shared : Text inside the share tags
1014 * - author : (Optional) Display name of the shared author
1015 * - profile : (Optional) Profile page URL of the shared author
1016 * - avatar : (Optional) Profile picture URL of the shared author
1017 * - link : (Optional) Canonical URL of the shared post
1018 * - posted : (Optional) Date the shared post was initially posted ("Y-m-d H:i:s" in GMT)
1019 * - message_id: (Optional) Shared post URI if any
1020 * - guid : (Optional) Shared post GUID if any
1022 public static function fetchShareAttributes(string $text): array
1024 DI::profiler()->startRecording('rendering');
1025 if (preg_match('~(.*?)\[share](.*)\[/share]~ism', $text, $matches)) {
1026 DI::profiler()->stopRecording();
1034 'message_id' => trim($matches[2]),
1035 'comment' => trim($matches[1]),
1039 // See Issue https://github.com/friendica/friendica/issues/10454
1040 // Hashtags in usernames are expanded to links. This here is a quick fix.
1041 $text = preg_replace('~([@!#])\[url=.*?](.*?)\[/url]~ism', '$1$2', $text);
1043 if (!preg_match('~(.*?)\[share(.*?)](.*)\[/share]~ism', $text, $matches)) {
1044 DI::profiler()->stopRecording();
1048 $attributes = self::extractShareAttributes($matches[2]);
1050 $attributes['comment'] = trim($matches[1]);
1051 $attributes['shared'] = trim($matches[3]);
1053 DI::profiler()->stopRecording();
1058 * @see BBCode::fetchShareAttributes()
1059 * @param string $shareString Internal opening share tag string matched by the regular expression
1060 * @return array A fixed attribute array where missing attribute are represented by empty strings
1062 private static function extractShareAttributes(string $shareString): array
1065 foreach (['author', 'profile', 'avatar', 'link', 'posted', 'guid', 'message_id'] as $field) {
1066 preg_match("/$field=(['\"])(.+?)\\1/ism", $shareString, $matches);
1067 $attributes[$field] = html_entity_decode($matches[2] ?? '', ENT_QUOTES, 'UTF-8');
1074 * Checks, if the provided body contains a native reshare
1076 * @param string $body
1079 public static function isNativeReshare(string $body): bool
1081 $shared = BBCode::fetchShareAttributes($body);
1082 return !empty($shared['guid'] ?? '');
1086 * Checks if the provided body contains a "share" element
1088 * @param string $body
1091 public static function existsShare(string $body): bool
1093 $shared = BBCode::fetchShareAttributes($body);
1094 return !empty($shared['link'] ?? '');
1098 * Replace the share block with a link
1100 * @param string $body
1103 public static function replaceSharedData(string $body): string
1105 return BBCode::convertShare(
1107 function (array $attributes) {
1108 return '♲ ' . $attributes['link'];
1114 * Remove the share block
1116 * @param string $body
1119 public static function removeSharedData(string $body): string
1121 return trim(preg_replace("/\s*\[share .*?\].*?\[\/share\]\s*/ism", '', $body));
1125 * This function converts a [share] block to text according to a provided callback function whose signature is:
1127 * function(array $attributes, array $author_contact, string $content, boolean $is_quote_share): string
1130 * - $attributes is an array of attributes of the [share] block itself. Missing keys will be completed by the contact
1132 * - $author_contact is a contact record array
1133 * - $content is the inner content of the [share] block
1134 * - $is_quote_share indicates whether there's any content before the [share] block
1135 * - Return value is the string that should replace the [share] block in the provided text
1137 * This function is intended to be used by addon connector to format a share block like the target network is expecting it.
1139 * @param string $text A BBCode string
1140 * @param callable $callback
1141 * @return string The BBCode string with all [share] blocks replaced
1143 public static function convertShare(string $text, callable $callback, int $uriid = 0): string
1145 DI::profiler()->startRecording('rendering');
1146 $return = preg_replace_callback(
1147 '~(.*?)\[share(.*?)](.*)\[/share]~ism',
1148 function ($match) use ($callback, $uriid) {
1149 $attributes = self::extractShareAttributes($match[2]);
1151 $author_contact = Contact::getByURL($attributes['profile'], false, ['id', 'url', 'addr', 'name', 'micro']);
1152 $author_contact['url'] = ($author_contact['url'] ?? $attributes['profile']);
1153 $author_contact['addr'] = ($author_contact['addr'] ?? '');
1155 $attributes['author'] = ($author_contact['name'] ?? '') ?: $attributes['author'];
1156 $attributes['avatar'] = ($author_contact['micro'] ?? '') ?: $attributes['avatar'];
1157 $attributes['profile'] = ($author_contact['url'] ?? '') ?: $attributes['profile'];
1159 if (!empty($author_contact['id'])) {
1160 $attributes['avatar'] = Contact::getAvatarUrlForId($author_contact['id'], Proxy::SIZE_THUMB);
1161 } elseif ($attributes['avatar']) {
1162 $attributes['avatar'] = self::proxyUrl($attributes['avatar'], self::INTERNAL, $uriid, Proxy::SIZE_THUMB);
1165 $content = preg_replace(Strings::autoLinkRegEx(), '<a href="$1">$1</a>', $match[3]);
1167 return $match[1] . $callback($attributes, $author_contact, $content, trim($match[1]) != '');
1172 DI::profiler()->stopRecording();
1173 return trim($return);
1177 * Convert complex IMG and ZMG elements
1179 * @param [type] $text
1180 * @param integer $simplehtml
1181 * @param integer $uriid
1184 private static function convertImages(string $text, int $simplehtml, int $uriid = 0): string
1186 DI::profiler()->startRecording('rendering');
1187 $return = preg_replace_callback(
1188 "/\[[zi]mg(.*?)\]([^\[\]]*)\[\/[zi]mg\]/ism",
1189 function ($match) use ($simplehtml, $uriid) {
1190 $attribute_string = $match[1];
1192 foreach (['alt', 'width', 'height'] as $field) {
1193 preg_match("/$field=(['\"])(.+?)\\1/ism", $attribute_string, $matches);
1194 $attributes[$field] = html_entity_decode($matches[2] ?? '', ENT_QUOTES, 'UTF-8');
1197 $img_str = '<img src="' .
1198 self::proxyUrl($match[2], $simplehtml, $uriid) . '"';
1199 foreach ($attributes as $key => $value) {
1200 if (!empty($value)) {
1201 $img_str .= ' ' . $key . '="' . htmlspecialchars($value, ENT_COMPAT) . '"';
1204 return $img_str . '>';
1209 DI::profiler()->stopRecording();
1214 * Default [share] tag conversion callback
1216 * Note: Can produce a [bookmark] tag in the output
1218 * @see BBCode::convertShare()
1219 * @param array $attributes [share] block attribute values
1220 * @param array $author_contact Contact row of the shared author
1221 * @param string $content Inner content of the [share] block
1222 * @param boolean $is_quote_share Whether there is content before the [share] block
1223 * @param integer $simplehtml Mysterious integer value depending on the target network/formatting style
1225 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1227 private static function convertShareCallback(array $attributes, array $author_contact, string $content, bool $is_quote_share, int $simplehtml): string
1229 DI::profiler()->startRecording('rendering');
1230 $mention = $attributes['author'] . ' (' . ($author_contact['addr'] ?? '') . ')';
1232 switch ($simplehtml) {
1234 $text = ($is_quote_share? '<br>' : '') .
1235 '<b><a href="' . $attributes['link'] . '">' . html_entity_decode('♲', ENT_QUOTES, 'UTF-8') . ' ' . $author_contact['addr'] . "</a>:</b><br>\n" .
1236 '<blockquote class="shared_content" dir="auto">' . $content . '</blockquote>';
1238 case self::DIASPORA:
1239 if (stripos(Strings::normaliseLink($attributes['link']), 'http://twitter.com/') === 0) {
1240 $text = ($is_quote_share? '<hr />' : '') . '<p><a href="' . $attributes['link'] . '">' . $attributes['link'] . '</a></p>' . "\n";
1242 $headline = '<p><b>♲ <a href="' . $attributes['profile'] . '">' . $attributes['author'] . '</a>:</b></p>' . "\n";
1244 if (!empty($attributes['posted']) && !empty($attributes['link'])) {
1245 $headline = '<p><b>♲ <a href="' . $attributes['profile'] . '">' . $attributes['author'] . '</a></b> - <a href="' . $attributes['link'] . '">' . $attributes['posted'] . ' GMT</a></p>' . "\n";
1248 $text = ($is_quote_share? '<hr />' : '') . $headline . '<blockquote>' . trim($content) . '</blockquote>' . "\n";
1250 if (empty($attributes['posted']) && !empty($attributes['link'])) {
1251 $text .= '<p><a href="' . $attributes['link'] . '">[Source]</a></p>' . "\n";
1256 case self::CONNECTORS:
1257 $headline = '<p><b>' . html_entity_decode('♲ ', ENT_QUOTES, 'UTF-8');
1258 $headline .= DI::l10n()->t('<a href="%1$s" target="_blank" rel="noopener noreferrer">%2$s</a> %3$s', $attributes['link'], $mention, $attributes['posted']);
1259 $headline .= ':</b></p>' . "\n";
1261 $text = ($is_quote_share? '<hr />' : '') . $headline . '<blockquote class="shared_content" dir="auto">' . trim($content) . '</blockquote>' . "\n";
1265 $text = ($is_quote_share? '<br>' : '') . '<p>' . html_entity_decode('♲ ', ENT_QUOTES, 'UTF-8') . ' @' . $author_contact['addr'] . ': ' . $content . '</p>' . "\n";
1267 case self::ACTIVITYPUB:
1268 $author = '@<span class="vcard"><a href="' . $author_contact['url'] . '" class="url u-url mention" title="' . $author_contact['addr'] . '"><span class="fn nickname mention">' . $author_contact['addr'] . '</span></a>:</span>';
1269 $text = '<div><a href="' . $attributes['link'] . '">' . html_entity_decode('♲', ENT_QUOTES, 'UTF-8') . '</a> ' . $author . '<blockquote>' . $content . '</blockquote></div>' . "\n";
1272 $text = ($is_quote_share? "\n" : '');
1274 $contact = Contact::getByURL($attributes['profile'], false, ['network']);
1275 $network = $contact['network'] ?? Protocol::PHANTOM;
1277 $tpl = Renderer::getMarkupTemplate('shared_content.tpl');
1278 $text .= Renderer::replaceMacros($tpl, [
1279 '$profile' => $attributes['profile'],
1280 '$avatar' => $attributes['avatar'],
1281 '$author' => $attributes['author'],
1282 '$link' => $attributes['link'],
1283 '$link_title' => DI::l10n()->t('Link to source'),
1284 '$posted' => $attributes['posted'],
1285 '$guid' => $attributes['guid'],
1286 '$network_name' => ContactSelector::networkToName($network, $attributes['profile']),
1287 '$network_icon' => ContactSelector::networkToIcon($network, $attributes['profile']),
1288 '$content' => self::TOP_ANCHOR . self::setMentions(trim($content), 0, $network) . self::BOTTOM_ANCHOR,
1296 private static function removePictureLinksCallback(array $match): string
1298 $cache_key = 'remove:' . $match[1];
1299 $text = DI::cache()->get($cache_key);
1301 if (is_null($text)) {
1302 $curlResult = DI::httpClient()->head($match[1], [HttpClientOptions::TIMEOUT => DI::config()->get('system', 'xrd_timeout')]);
1303 if ($curlResult->isSuccess()) {
1304 $mimetype = $curlResult->getHeader('Content-Type')[0] ?? '';
1309 if (substr($mimetype, 0, 6) == 'image/') {
1310 $text = '[url=' . $match[1] . ']' . $match[1] . '[/url]';
1312 $text = '[url=' . $match[2] . ']' . $match[2] . '[/url]';
1314 // if its not a picture then look if its a page that contains a picture link
1315 $body = DI::httpClient()->fetch($match[1], HttpClientAccept::HTML, 0);
1317 DI::cache()->set($cache_key, $text);
1321 $doc = new DOMDocument();
1322 @$doc->loadHTML($body);
1323 $xpath = new DOMXPath($doc);
1324 $list = $xpath->query('//meta[@name]');
1325 foreach ($list as $node) {
1328 if ($node->attributes->length) {
1329 foreach ($node->attributes as $attribute) {
1330 $attr[$attribute->name] = $attribute->value;
1334 if (strtolower($attr['name']) == 'twitter:image') {
1335 $text = '[url=' . $attr['content'] . ']' . $attr['content'] . '[/url]';
1339 DI::cache()->set($cache_key, $text);
1346 * Callback: Expands links from given $match array
1348 * @param arrat $match Array with link match
1349 * @return string BBCode
1351 private static function expandLinksCallback(array $match): string
1353 if (($match[3] == '') || ($match[2] == $match[3]) || stristr($match[2], $match[3])) {
1354 return ($match[1] . '[url]' . $match[2] . '[/url]');
1356 return ($match[1] . $match[3] . ' [url]' . $match[2] . '[/url]');
1361 * Callback: Cleans picture links
1363 * @param arrat $match Array with link match
1364 * @return string BBCode
1366 private static function cleanPictureLinksCallback(array $match): string
1368 // When the picture link is the own photo path then we can avoid fetching the link
1369 $own_photo_url = preg_quote(Strings::normaliseLink(DI::baseUrl()->get()) . '/photos/');
1370 if (preg_match('|' . $own_photo_url . '.*?/image/|', Strings::normaliseLink($match[1]))) {
1371 if (!empty($match[3])) {
1372 $text = '[img=' . str_replace('-1.', '-0.', $match[2]) . ']' . $match[3] . '[/img]';
1374 $text = '[img]' . str_replace('-1.', '-0.', $match[2]) . '[/img]';
1379 $cache_key = 'clean:' . $match[1];
1380 $text = DI::cache()->get($cache_key);
1381 if (!is_null($text)) {
1385 $curlResult = DI::httpClient()->head($match[1], [HttpClientOptions::TIMEOUT => DI::config()->get('system', 'xrd_timeout')]);
1386 if ($curlResult->isSuccess()) {
1387 $mimetype = $curlResult->getHeader('Content-Type')[0] ?? '';
1392 // if its a link to a picture then embed this picture
1393 if (substr($mimetype, 0, 6) == 'image/') {
1394 $text = '[img]' . $match[1] . '[/img]';
1396 if (!empty($match[3])) {
1397 $text = '[img=' . $match[2] . ']' . $match[3] . '[/img]';
1399 $text = '[img]' . $match[2] . '[/img]';
1402 // if its not a picture then look if its a page that contains a picture link
1403 $body = DI::httpClient()->fetch($match[1], HttpClientAccept::HTML, 0);
1405 DI::cache()->set($cache_key, $text);
1409 $doc = new DOMDocument();
1410 @$doc->loadHTML($body);
1411 $xpath = new DOMXPath($doc);
1412 $list = $xpath->query('//meta[@name]');
1413 foreach ($list as $node) {
1415 if ($node->attributes->length) {
1416 foreach ($node->attributes as $attribute) {
1417 $attr[$attribute->name] = $attribute->value;
1421 if (strtolower($attr['name']) == "twitter:image") {
1422 if (!empty($match[3])) {
1423 $text = "[img=" . $attr['content'] . "]" . $match[3] . "[/img]";
1425 $text = "[img]" . $attr['content'] . "[/img]";
1430 DI::cache()->set($cache_key, $text);
1436 * Cleans picture links
1438 * @param string $text HTML/BBCode string
1439 * @return string Cleaned HTML/BBCode
1441 public static function cleanPictureLinks(string $text): string
1443 DI::profiler()->startRecording('rendering');
1444 $return = preg_replace_callback("&\[url=([^\[\]]*)\]\[img=(.*)\](.*)\[\/img\]\[\/url\]&Usi", 'self::cleanPictureLinksCallback', $text);
1445 $return = preg_replace_callback("&\[url=([^\[\]]*)\]\[img\](.*)\[\/img\]\[\/url\]&Usi", 'self::cleanPictureLinksCallback', $return);
1446 DI::profiler()->stopRecording();
1453 * @param string $text HTML/BBCode string
1454 * @return string Cleaned HTML/BBCode
1456 public static function removeLinks(string $bbcode): string
1458 DI::profiler()->startRecording('rendering');
1459 $bbcode = preg_replace("/\[img\=(.*?)\](.*?)\[\/img\]/ism", ' $1 ', $bbcode);
1460 $bbcode = preg_replace("/\[img.*?\[\/img\]/ism", ' ', $bbcode);
1462 $bbcode = preg_replace('/[@!#]\[url\=.*?\].*?\[\/url\]/ism', '', $bbcode);
1463 $bbcode = preg_replace("/\[url=[^\[\]]*\](.*)\[\/url\]/Usi", ' $1 ', $bbcode);
1464 $bbcode = preg_replace('/[@!#]?\[url.*?\[\/url\]/ism', '', $bbcode);
1465 DI::profiler()->stopRecording();
1470 * Replace names in mentions with nicknames
1472 * @param string $body HTML/BBCode
1473 * @return string Body with replaced mentions
1475 public static function setMentionsToNicknames(string $body): string
1477 DI::profiler()->startRecording('rendering');
1478 $regexp = "/([@!])\[url\=([^\[\]]*)\].*?\[\/url\]/ism";
1479 $body = preg_replace_callback($regexp, ['self', 'mentionCallback'], $body);
1480 DI::profiler()->stopRecording();
1485 * Callback function to replace a Friendica style mention in a mention with the nickname
1487 * @param array $match Matching values for the callback
1488 * @return string Replaced mention or empty string
1489 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1491 private static function mentionCallback(array $match): string
1493 if (empty($match[2])) {
1497 $data = Contact::getByURL($match[2], false, ['url', 'nick']);
1498 if (empty($data['nick'])) {
1502 return $match[1] . '[url=' . $data['url'] . ']' . $data['nick'] . '[/url]';
1506 * Converts a BBCode message for a given URI-ID to a HTML message
1508 * BBcode 2 HTML was written by WAY2WEB.net
1509 * extended to work with Mistpark/Friendica - Mike Macgirvin
1511 * Simple HTML values meaning:
1512 * - 0: Friendica display
1514 * - 2: Used for Windows Phone push, Friendica API
1515 * - 3: Used before converting to Markdown in bb2diaspora.php
1516 * - 4: Used for WordPress, Libertree (before Markdown), pump.io and tumblr
1519 * - 7: Used for dfrn, OStatus
1520 * - 8: Used for Twitter, WP backlink text setting
1524 * @param string $text
1525 * @param int $simple_html
1527 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1529 public static function convertForUriId(int $uriid = null, string $text = null, int $simple_html = self::INTERNAL): string
1531 $try_oembed = ($simple_html == self::INTERNAL);
1533 return self::convert($text ?? '', $try_oembed, $simple_html, false, $uriid ?? 0);
1537 * Converts a BBCode message to HTML message
1539 * BBcode 2 HTML was written by WAY2WEB.net
1540 * extended to work with Mistpark/Friendica - Mike Macgirvin
1542 * Simple HTML values meaning:
1543 * - 0: Friendica display
1545 * - 2: Used for Windows Phone push, Friendica API
1546 * - 3: Used before converting to Markdown in bb2diaspora.php
1547 * - 4: Used for WordPress, Libertree (before Markdown), pump.io and tumblr
1550 * - 7: Used for dfrn, OStatus
1551 * - 8: Used for Twitter, WP backlink text setting
1554 * @param string $text
1555 * @param bool $try_oembed
1556 * @param int $simple_html
1557 * @param bool $for_plaintext
1559 * @return string Converted code or empty string
1560 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1562 public static function convert(string $text = null, bool $try_oembed = true, int $simple_html = self::INTERNAL, bool $for_plaintext = false, int $uriid = 0): string
1564 // Accounting for null default column values
1565 if (is_null($text) || $text === '') {
1569 DI::profiler()->startRecording('rendering');
1571 Hook::callAll('bbcode', $text);
1575 $text = self::performWithEscapedTags($text, ['code'], function ($text) use ($try_oembed, $simple_html, $for_plaintext, $a, $uriid) {
1576 $text = self::performWithEscapedTags($text, ['noparse', 'nobb', 'pre'], function ($text) use ($try_oembed, $simple_html, $for_plaintext, $a, $uriid) {
1578 * preg_match_callback function to replace potential Oembed tags with Oembed content
1580 * $match[0] = [tag]$url[/tag] or [tag=$url]$title[/tag]
1582 * $match[2] = $title or absent
1584 $try_oembed_callback = function (array $match)
1587 $title = $match[2] ?? '';
1590 $return = OEmbed::getHTML($url, $title);
1591 } catch (Exception $ex) {
1592 $return = $match[0];
1598 // Remove the abstract element. It is a non visible element.
1599 $text = self::stripAbstract($text);
1601 // Line ending normalisation
1602 $text = str_replace("\r\n", "\n", $text);
1604 // Move new lines outside of tags
1605 $text = preg_replace("#\[(\w*)](\n*)#ism", '$2[$1]', $text);
1606 $text = preg_replace("#(\n*)\[/(\w*)]#ism", '[/$2]$1', $text);
1608 // Extract the private images which use data urls since preg has issues with
1609 // large data sizes. Stash them away while we do bbcode conversion, and then put them back
1610 // in after we've done all the regex matching. We cannot use any preg functions to do this.
1612 $extracted = self::extractImagesFromItemBody($text);
1613 $text = $extracted['body'];
1614 $saved_image = $extracted['images'];
1616 // If we find any event code, turn it into an event.
1617 // After we're finished processing the bbcode we'll
1618 // replace all of the event code with a reformatted version.
1620 $ev = Event::fromBBCode($text);
1622 // Replace any html brackets with HTML Entities to prevent executing HTML or script
1623 // Don't use strip_tags here because it breaks [url] search by replacing & with amp
1625 $text = str_replace("<", "<", $text);
1626 $text = str_replace(">", ">", $text);
1628 // remove some newlines before the general conversion
1629 $text = preg_replace("/\s?\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism", "[share$1]$2[/share]", $text);
1630 $text = preg_replace("/\s?\[quote(.*?)\]\s?(.*?)\s?\[\/quote\]\s?/ism", "[quote$1]$2[/quote]", $text);
1632 // when the content is meant exporting to other systems then remove the avatar picture since this doesn't really look good on these systems
1634 $text = preg_replace("/\[share(.*?)avatar\s?=\s?'.*?'\s?(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism", "\n[share$1$2]$3[/share]", $text);
1637 // Remove linefeeds inside of the table elements. See issue #6799
1638 $search = ["\n[th]", "[th]\n", " [th]", "\n[/th]", "[/th]\n", "[/th] ",
1639 "\n[td]", "[td]\n", " [td]", "\n[/td]", "[/td]\n", "[/td] ",
1640 "\n[tr]", "[tr]\n", " [tr]", "[tr] ", "\n[/tr]", "[/tr]\n", " [/tr]", "[/tr] ",
1641 "\n[hr]", "[hr]\n", " [hr]", "[hr] ",
1642 "\n[attachment ", " [attachment ", "\n[/attachment]", "[/attachment]\n", " [/attachment]", "[/attachment] ",
1643 "[table]\n", "[table] ", " [table]", "\n[/table]", " [/table]", "[/table] "];
1644 $replace = ["[th]", "[th]", "[th]", "[/th]", "[/th]", "[/th]",
1645 "[td]", "[td]", "[td]", "[/td]", "[/td]", "[/td]",
1646 "[tr]", "[tr]", "[tr]", "[tr]", "[/tr]", "[/tr]", "[/tr]", "[/tr]",
1647 "[hr]", "[hr]", "[hr]", "[hr]",
1648 "[attachment ", "[attachment ", "[/attachment]", "[/attachment]", "[/attachment]", "[/attachment]",
1649 "[table]", "[table]", "[table]", "[/table]", "[/table]", "[/table]"];
1652 $text = str_replace($search, $replace, $text);
1653 } while ($oldtext != $text);
1655 // Replace these here only once
1656 $search = ["\n[table]", "[/table]\n"];
1657 $replace = ["[table]", "[/table]"];
1658 $text = str_replace($search, $replace, $text);
1660 // Trim new lines regardless of the system.remove_multiplicated_lines config value
1661 $text = trim($text, "\n");
1663 // removing multiplicated newlines
1664 if (DI::config()->get('system', 'remove_multiplicated_lines')) {
1665 $search = ["\n\n\n", "\n ", " \n", "[/quote]\n\n", "\n[/quote]", "[/li]\n", "\n[li]", "\n[*]", "\n[ul]", "[/ul]\n", "\n\n[share ", "[/attachment]\n",
1666 "\n[h1]", "[/h1]\n", "\n[h2]", "[/h2]\n", "\n[h3]", "[/h3]\n", "\n[h4]", "[/h4]\n", "\n[h5]", "[/h5]\n", "\n[h6]", "[/h6]\n"];
1667 $replace = ["\n\n", "\n", "\n", "[/quote]\n", "[/quote]", "[/li]", "[li]", "[*]", "[ul]", "[/ul]", "\n[share ", "[/attachment]",
1668 "[h1]", "[/h1]", "[h2]", "[/h2]", "[h3]", "[/h3]", "[h4]", "[/h4]", "[h5]", "[/h5]", "[h6]", "[/h6]"];
1671 $text = str_replace($search, $replace, $text);
1672 } while ($oldtext != $text);
1675 /// @todo Have a closer look at the different html modes
1676 // Handle attached links or videos
1677 if (in_array($simple_html, [self::API, self::ACTIVITYPUB])) {
1678 $text = self::removeAttachment($text);
1679 } elseif (!in_array($simple_html, [self::INTERNAL, self::EXTERNAL, self::CONNECTORS])) {
1680 $text = self::removeAttachment($text, true);
1682 $text = self::convertAttachment($text, $simple_html, $try_oembed, [], $uriid);
1685 $nosmile = strpos($text, '[nosmile]') !== false;
1686 $text = str_replace('[nosmile]', '', $text);
1688 // Replace non graphical smilies for external posts
1690 $text = self::performWithEscapedTags($text, ['img'], function ($text) use ($simple_html, $for_plaintext) {
1691 return Smilies::replace($text, ($simple_html != self::INTERNAL) || $for_plaintext);
1695 // leave open the posibility of [map=something]
1696 // this is replaced in Item::prepareBody() which has knowledge of the item location
1697 if (strpos($text, '[/map]') !== false) {
1698 $text = preg_replace_callback(
1699 "/\[map\](.*?)\[\/map\]/ism",
1700 function ($match) use ($simple_html) {
1701 return str_replace($match[0], '<p class="map">' . Map::byLocation($match[1], $simple_html) . '</p>', $match[0]);
1707 if (strpos($text, '[map=') !== false) {
1708 $text = preg_replace_callback(
1709 "/\[map=(.*?)\]/ism",
1710 function ($match) use ($simple_html) {
1711 return str_replace($match[0], '<p class="map">' . Map::byCoordinates(str_replace('/', ' ', $match[1]), $simple_html) . '</p>', $match[0]);
1717 if (strpos($text, '[map]') !== false) {
1718 $text = preg_replace("/\[map\]/", '<p class="map"></p>', $text);
1721 // Check for headers
1722 $text = preg_replace("(\[h1\](.*?)\[\/h1\])ism", '<h1>$1</h1>', $text);
1723 $text = preg_replace("(\[h2\](.*?)\[\/h2\])ism", '<h2>$1</h2>', $text);
1724 $text = preg_replace("(\[h3\](.*?)\[\/h3\])ism", '<h3>$1</h3>', $text);
1725 $text = preg_replace("(\[h4\](.*?)\[\/h4\])ism", '<h4>$1</h4>', $text);
1726 $text = preg_replace("(\[h5\](.*?)\[\/h5\])ism", '<h5>$1</h5>', $text);
1727 $text = preg_replace("(\[h6\](.*?)\[\/h6\])ism", '<h6>$1</h6>', $text);
1729 // Check for paragraph
1730 $text = preg_replace("(\[p\](.*?)\[\/p\])ism", '<p>$1</p>', $text);
1732 // Check for bold text
1733 $text = preg_replace("(\[b\](.*?)\[\/b\])ism", '<strong>$1</strong>', $text);
1735 // Check for Italics text
1736 $text = preg_replace("(\[i\](.*?)\[\/i\])ism", '<em>$1</em>', $text);
1738 // Check for Underline text
1739 $text = preg_replace("(\[u\](.*?)\[\/u\])ism", '<u>$1</u>', $text);
1741 // Check for strike-through text
1742 $text = preg_replace("(\[s\](.*?)\[\/s\])ism", '<s>$1</s>', $text);
1744 // Check for over-line text
1745 $text = preg_replace("(\[o\](.*?)\[\/o\])ism", '<span class="overline">$1</span>', $text);
1747 // Check for colored text
1748 $text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])ism", "<span style=\"color: $1;\">$2</span>", $text);
1750 // Check for sized text
1751 // [size=50] --> font-size: 50px (with the unit).
1752 if ($simple_html != self::DIASPORA) {
1753 $text = preg_replace("(\[size=(\d*?)\](.*?)\[\/size\])ism", '<span style="font-size:$1px;line-height:normal;">$2</span>', $text);
1754 $text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])ism", '<span style="font-size:$1;line-height:normal;">$2</span>', $text);
1756 // Issue 2199: Diaspora doesn't interpret the construct above, nor the <small> or <big> element
1757 $text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])ism", "$2", $text);
1761 // Check for centered text
1762 $text = preg_replace("(\[center\](.*?)\[\/center\])ism", '<div style="text-align:center;">$1</div>', $text);
1764 // Check for list text
1765 $text = str_replace("[*]", "<li>", $text);
1767 // Check for block-level custom CSS
1768 $text = preg_replace('#(?<=^|\n)\[style=(.*?)](.*?)\[/style](?:\n|$)#ism', '<div style="$1">$2</div>', $text);
1770 // Check for inline custom CSS
1771 $text = preg_replace("(\[style=(.*?)\](.*?)\[\/style\])ism", '<span style="$1">$2</span>', $text);
1773 // Mastodon Emoji (internal tag, do not document for users)
1774 $text = preg_replace("(\[emoji=(.*?)](.*?)\[/emoji])ism", '<span class="mastodon emoji"><img src="$1" alt="$2" title="$2"/></span>', $text);
1776 // Check for CSS classes
1777 // @deprecated since 2021.12, left for backward-compatibility reasons
1778 $text = preg_replace("(\[class=(.*?)\](.*?)\[\/class\])ism", '<span class="$1">$2</span>', $text);
1779 // Add HTML new lines
1780 $text = str_replace("\n", '<br>', $text);
1782 // handle nested lists
1785 while ((((strpos($text, "[/list]") !== false) && (strpos($text, "[list") !== false)) ||
1786 ((strpos($text, "[/ol]") !== false) && (strpos($text, "[ol]") !== false)) ||
1787 ((strpos($text, "[/ul]") !== false) && (strpos($text, "[ul]") !== false)) ||
1788 ((strpos($text, "[/li]") !== false) && (strpos($text, "[li]") !== false))) && (++$endlessloop < 20)) {
1789 $text = preg_replace("/\[list\](.*?)\[\/list\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>', $text);
1790 $text = preg_replace("/\[list=\](.*?)\[\/list\]/ism", '<ul class="listnone" style="list-style-type: none;">$1</ul>', $text);
1791 $text = preg_replace("/\[list=1\](.*?)\[\/list\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>', $text);
1792 $text = preg_replace("/\[list=((?-i)i)\](.*?)\[\/list\]/ism", '<ul class="listlowerroman" style="list-style-type: lower-roman;">$2</ul>', $text);
1793 $text = preg_replace("/\[list=((?-i)I)\](.*?)\[\/list\]/ism", '<ul class="listupperroman" style="list-style-type: upper-roman;">$2</ul>', $text);
1794 $text = preg_replace("/\[list=((?-i)a)\](.*?)\[\/list\]/ism", '<ul class="listloweralpha" style="list-style-type: lower-alpha;">$2</ul>', $text);
1795 $text = preg_replace("/\[list=((?-i)A)\](.*?)\[\/list\]/ism", '<ul class="listupperalpha" style="list-style-type: upper-alpha;">$2</ul>', $text);
1796 $text = preg_replace("/\[ul\](.*?)\[\/ul\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>', $text);
1797 $text = preg_replace("/\[ol\](.*?)\[\/ol\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>', $text);
1798 $text = preg_replace("/\[li\](.*?)\[\/li\]/ism", '<li>$1</li>', $text);
1801 $text = preg_replace("/\[th\](.*?)\[\/th\]/sm", '<th>$1</th>', $text);
1802 $text = preg_replace("/\[td\](.*?)\[\/td\]/sm", '<td>$1</td>', $text);
1803 $text = preg_replace("/\[tr\](.*?)\[\/tr\]/sm", '<tr>$1</tr>', $text);
1804 $text = preg_replace("/\[table\](.*?)\[\/table\]/sm", '<table>$1</table>', $text);
1806 $text = preg_replace("/\[table border=1\](.*?)\[\/table\]/sm", '<table border="1" >$1</table>', $text);
1807 $text = preg_replace("/\[table border=0\](.*?)\[\/table\]/sm", '<table border="0" >$1</table>', $text);
1809 $text = str_replace('[hr]', '<hr />', $text);
1811 if (!$for_plaintext) {
1812 $text = self::performWithEscapedTags($text, ['url', 'img', 'audio', 'video', 'youtube', 'vimeo', 'share', 'attachment', 'iframe', 'bookmark'], function ($text) {
1813 return preg_replace(Strings::autoLinkRegEx(), '[url]$1[/url]', $text);
1817 // Check for font change text
1818 $text = preg_replace("/\[font=(.*?)\](.*?)\[\/font\]/sm", "<span style=\"font-family: $1;\">$2</span>", $text);
1820 // Declare the format for [spoiler] layout
1821 $SpoilerLayout = '<details class="spoiler"><summary>' . DI::l10n()->t('Click to open/close') . '</summary>$1</details>';
1823 // Check for [spoiler] text
1824 // handle nested quotes
1826 while ((strpos($text, "[/spoiler]") !== false) && (strpos($text, "[spoiler]") !== false) && (++$endlessloop < 20)) {
1827 $text = preg_replace("/\[spoiler\](.*?)\[\/spoiler\]/ism", $SpoilerLayout, $text);
1830 // Check for [spoiler=Title] text
1832 // handle nested quotes
1834 while ((strpos($text, "[/spoiler]")!== false) && (strpos($text, "[spoiler=") !== false) && (++$endlessloop < 20)) {
1835 $text = preg_replace("/\[spoiler=[\"\']*(.*?)[\"\']*\](.*?)\[\/spoiler\]/ism",
1836 '<details class="spoiler"><summary>$1</summary>$2</details>',
1840 // Declare the format for [quote] layout
1841 $QuoteLayout = '<blockquote>$1</blockquote>';
1843 // Check for [quote] text
1844 // handle nested quotes
1846 while ((strpos($text, "[/quote]") !== false) && (strpos($text, "[quote]") !== false) && (++$endlessloop < 20)) {
1847 $text = preg_replace("/\[quote\](.*?)\[\/quote\]/ism", "$QuoteLayout", $text);
1850 // Check for [quote=Author] text
1852 $t_wrote = DI::l10n()->t('$1 wrote:');
1854 // handle nested quotes
1856 while ((strpos($text, "[/quote]")!== false) && (strpos($text, "[quote=") !== false) && (++$endlessloop < 20)) {
1857 $text = preg_replace("/\[quote=[\"\']*(.*?)[\"\']*\](.*?)\[\/quote\]/ism",
1858 "<p><strong class=".'"author"'.">" . $t_wrote . "</strong></p><blockquote>$2</blockquote>",
1863 // [img=widthxheight]image source[/img]
1864 $text = preg_replace_callback(
1865 "/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism",
1866 function ($matches) use ($simple_html, $uriid) {
1867 if (strpos($matches[3], "data:image/") === 0) {
1871 $matches[3] = self::proxyUrl($matches[3], $simple_html, $uriid);
1872 return "[img=" . $matches[1] . "x" . $matches[2] . "]" . $matches[3] . "[/img]";
1877 $text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="width: $1px;" >', $text);
1878 $text = preg_replace("/\[zmg\=([0-9]*)x([0-9]*)\](.*?)\[\/zmg\]/ism", '<img class="zrl" src="$3" style="width: $1px;" >', $text);
1880 $text = preg_replace_callback("/\[img\=(.*?)\](.*?)\[\/img\]/ism",
1881 function ($matches) use ($simple_html, $uriid) {
1882 $matches[1] = self::proxyUrl($matches[1], $simple_html, $uriid);
1883 $matches[2] = htmlspecialchars($matches[2], ENT_COMPAT);
1884 return '<img src="' . $matches[1] . '" alt="' . $matches[2] . '" title="' . $matches[2] . '">';
1889 // [img]pathtoimage[/img]
1890 $text = preg_replace_callback(
1891 "/\[img\](.*?)\[\/img\]/ism",
1892 function ($matches) use ($simple_html, $uriid) {
1893 if (strpos($matches[1], "data:image/") === 0) {
1897 $matches[1] = self::proxyUrl($matches[1], $simple_html, $uriid);
1898 return "[img]" . $matches[1] . "[/img]";
1903 $text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '<img src="$1" alt="' . DI::l10n()->t('Image/photo') . '" />', $text);
1904 $text = preg_replace("/\[zmg\](.*?)\[\/zmg\]/ism", '<img src="$1" alt="' . DI::l10n()->t('Image/photo') . '" />', $text);
1906 $text = self::convertImages($text, $simple_html, $uriid);
1908 $text = preg_replace("/\[crypt\](.*?)\[\/crypt\]/ism", '<br><img src="' .DI::baseUrl() . '/images/lock_icon.gif" alt="' . DI::l10n()->t('Encrypted content') . '" title="' . DI::l10n()->t('Encrypted content') . '" /><br>', $text);
1909 $text = preg_replace("/\[crypt(.*?)\](.*?)\[\/crypt\]/ism", '<br><img src="' .DI::baseUrl() . '/images/lock_icon.gif" alt="' . DI::l10n()->t('Encrypted content') . '" title="' . '$1' . ' ' . DI::l10n()->t('Encrypted content') . '" /><br>', $text);
1910 //$text = preg_replace("/\[crypt=(.*?)\](.*?)\[\/crypt\]/ism", '<br><img src="' .DI::baseUrl() . '/images/lock_icon.gif" alt="' . DI::l10n()->t('Encrypted content') . '" title="' . '$1' . ' ' . DI::l10n()->t('Encrypted content') . '" /><br>', $text);
1912 // Simplify "video" element
1913 $text = preg_replace('(\[video[^\]]*?\ssrc\s?=\s?([^\s\]]+)[^\]]*?\].*?\[/video\])ism', '[video]$1[/video]', $text);
1916 // html5 video and audio
1917 $text = preg_replace("/\[video\](.*?\.(ogg|ogv|oga|ogm|webm|mp4).*?)\[\/video\]/ism",
1918 '<video src="$1" controls width="100%" height="auto"><a href="$1">$1</a></video>', $text);
1920 $text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", $try_oembed_callback, $text);
1921 $text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", $try_oembed_callback, $text);
1923 $text = preg_replace("/\[video\](.*?)\[\/video\]/ism",
1924 '<a href="$1" target="_blank" rel="noopener noreferrer">$1</a>', $text);
1925 $text = preg_replace("/\[audio\](.*?)\[\/audio\]/ism", '<audio src="$1" controls><a href="$1">$1</a></audio>', $text);
1927 $text = preg_replace("/\[video\](.*?)\[\/video\]/ism",
1928 '<a href="$1" target="_blank" rel="noopener noreferrer">$1</a>', $text);
1929 $text = preg_replace("/\[audio\](.*?)\[\/audio\]/ism",
1930 '<a href="$1" target="_blank" rel="noopener noreferrer">$1</a>', $text);
1933 // Backward compatibility, [iframe] support has been removed in version 2020.12
1934 $text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<a href="$1">$1</a>', $text);
1936 // Youtube extensions
1938 $text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", $try_oembed_callback, $text);
1939 $text = preg_replace_callback("/\[youtube\](www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", $try_oembed_callback, $text);
1940 $text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/shorts\/.*?)\[\/youtube\]/ism", $try_oembed_callback, $text);
1941 $text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism", $try_oembed_callback, $text);
1944 $text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism", '[youtube]$1[/youtube]', $text);
1945 $text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism", '[youtube]$1[/youtube]', $text);
1946 $text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/shorts\/(.*?)\[\/youtube\]/ism", '[youtube]$1[/youtube]', $text);
1947 $text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism", '[youtube]$1[/youtube]', $text);
1950 $text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism", '<iframe width="' . $a->getThemeInfoValue('videowidth') . '" height="' . $a->getThemeInfoValue('videoheight') . '" src="https://www.youtube.com/embed/$1" frameborder="0" ></iframe>', $text);
1952 $text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism",
1953 '<a href="https://www.youtube.com/watch?v=$1" target="_blank" rel="noopener noreferrer">https://www.youtube.com/watch?v=$1</a>', $text);
1957 $text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism", $try_oembed_callback, $text);
1958 $text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism", $try_oembed_callback, $text);
1961 $text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism", '[vimeo]$1[/vimeo]', $text);
1962 $text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism", '[vimeo]$1[/vimeo]', $text);
1965 $text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", '<iframe width="' . $a->getThemeInfoValue('videowidth') . '" height="' . $a->getThemeInfoValue('videoheight') . '" src="https://player.vimeo.com/video/$1" frameborder="0" ></iframe>', $text);
1967 $text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism",
1968 '<a href="https://vimeo.com/$1" target="_blank" rel="noopener noreferrer">https://vimeo.com/$1</a>', $text);
1972 $text = OEmbed::BBCode2HTML($text);
1974 // Avoid triple linefeeds through oembed
1975 $text = str_replace("<br style='clear:left'></span><br><br>", "<br style='clear:left'></span><br>", $text);
1977 // If we found an event earlier, strip out all the event code and replace with a reformatted version.
1978 // Replace the event-start section with the entire formatted event. The other bbcode is stripped.
1979 // Summary (e.g. title) is required, earlier revisions only required description (in addition to
1980 // start which is always required). Allow desc with a missing summary for compatibility.
1982 if ((!empty($ev['desc']) || !empty($ev['summary'])) && !empty($ev['start'])) {
1983 $sub = Event::getHTML($ev, $simple_html, $uriid);
1985 $text = preg_replace("/\[event\-summary\](.*?)\[\/event\-summary\]/ism", '', $text);
1986 $text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/ism", '', $text);
1987 $text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/ism", $sub, $text);
1988 $text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/ism", '', $text);
1989 $text = preg_replace("/\[event\-location\](.*?)\[\/event\-location\]/ism", '', $text);
1990 $text = preg_replace("/\[event\-id\](.*?)\[\/event\-id\]/ism", '', $text);
1993 if (!$for_plaintext && DI::config()->get('system', 'big_emojis') && ($simple_html != self::DIASPORA)) {
1994 $conv = html_entity_decode(str_replace([' ', "\n", "\r"], '', $text));
1995 // Emojis are always 4 byte Unicode characters
1996 if (!empty($conv) && (strlen($conv) / mb_strlen($conv) == 4)) {
1997 $text = '<span style="font-size: xx-large; line-height: normal;">' . $text . '</span>';
2001 // Handle mentions and hashtag links
2002 if ($simple_html == self::DIASPORA) {
2003 // The ! is converted to @ since Diaspora only understands the @
2004 $text = preg_replace("/([@!])\[url\=(.*?)\](.*?)\[\/url\]/ism",
2005 '@<a href="$2">$3</a>',
2007 } elseif (in_array($simple_html, [self::OSTATUS, self::ACTIVITYPUB])) {
2008 $text = preg_replace("/([@!])\[url\=(.*?)\](.*?)\[\/url\]/ism",
2009 '<span class="h-card"><a href="$2" class="u-url mention">$1<span>$3</span></a></span>',
2011 $text = preg_replace("/([#])\[url\=(.*?)\](.*?)\[\/url\]/ism",
2012 '<a href="$2" class="mention hashtag" rel="tag">$1<span>$3</span></a>',
2014 } elseif (in_array($simple_html, [self::INTERNAL, self::EXTERNAL, self::API])) {
2015 $text = preg_replace("/([@!])\[url\=(.*?)\](.*?)\[\/url\]/ism",
2016 '<bdi>$1<a href="$2" class="userinfo mention" title="$3">$3</a></bdi>',
2019 $text = preg_replace("/([#@!])\[url\=(.*?)\](.*?)\[\/url\]/ism", '$1$3', $text);
2022 if (!$for_plaintext) {
2023 if (in_array($simple_html, [self::OSTATUS, self::API, self::ACTIVITYPUB])) {
2024 $text = preg_replace_callback("/\[url\](.*?)\[\/url\]/ism", 'self::convertUrlForActivityPubCallback', $text);
2025 $text = preg_replace_callback("/\[url\=(.*?)\](.*?)\[\/url\]/ism", 'self::convertUrlForActivityPubCallback', $text);
2028 $text = preg_replace("(\[url\](.*?)\[\/url\])ism", " $1 ", $text);
2029 $text = preg_replace_callback("&\[url=([^\[\]]*)\]\[img\](.*)\[\/img\]\[\/url\]&Usi", 'self::removePictureLinksCallback', $text);
2032 // Bookmarks in red - will be converted to bookmarks in friendica
2033 $text = preg_replace("/#\^\[url\](.*?)\[\/url\]/ism", '[bookmark=$1]$1[/bookmark]', $text);
2034 $text = preg_replace("/#\^\[url\=(.*?)\](.*?)\[\/url\]/ism", '[bookmark=$1]$2[/bookmark]', $text);
2035 $text = preg_replace("/#\[url\=.*?\]\^\[\/url\]\[url\=(.*?)\](.*?)\[\/url\]/i",
2036 "[bookmark=$1]$2[/bookmark]", $text);
2038 if (in_array($simple_html, [self::OSTATUS, self::TWITTER])) {
2039 $text = preg_replace_callback("/([^#@!])\[url\=([^\]]*)\](.*?)\[\/url\]/ism", "self::expandLinksCallback", $text);
2040 //$text = preg_replace("/[^#@!]\[url\=([^\]]*)\](.*?)\[\/url\]/ism", ' $2 [url]$1[/url]', $text);
2041 $text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", ' $2 [url]$1[/url]', $text);
2044 // Perform URL Search
2046 $text = preg_replace_callback("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $try_oembed_callback, $text);
2049 $text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", '[url=$1]$2[/url]', $text);
2051 // Handle Diaspora posts
2052 $text = preg_replace_callback(
2053 "&\[url=/?posts/([^\[\]]*)\](.*)\[\/url\]&Usi",
2055 return "[url=" . DI::baseUrl() . "/display/" . $match[1] . "]" . $match[2] . "[/url]";
2059 $text = preg_replace_callback(
2060 "&\[url=/people\?q\=(.*)\](.*)\[\/url\]&Usi",
2062 return "[url=" . DI::baseUrl() . "/search?search=%40" . $match[1] . "]" . $match[2] . "[/url]";
2066 // Server independent link to posts and comments
2067 // See issue: https://github.com/diaspora/diaspora_federation/issues/75
2068 $expression = "=diaspora://.*?/post/([0-9A-Za-z\-_@.:]{15,254}[0-9A-Za-z])=ism";
2069 $text = preg_replace($expression, DI::baseUrl()."/display/$1", $text);
2073 * - #[url=<anything>]<term>[/url]
2074 * - [url=<anything>]#<term>[/url]
2076 self::performWithEscapedTags($text, ['url', 'share'], function ($text) use ($simple_html) {
2077 $text = preg_replace_callback("/(?:#\[url\=[^\[\]]*\]|\[url\=[^\[\]]*\]#)(.*?)\[\/url\]/ism", function($matches) use ($simple_html) {
2078 if ($simple_html == self::ACTIVITYPUB) {
2079 return '<a href="' . DI::baseUrl() . '/search?tag=' . rawurlencode($matches[1])
2080 . '" data-tag="' . XML::escape($matches[1]) . '" rel="tag ugc">#'
2081 . XML::escape($matches[1]) . '</a>';
2083 return '#<a href="' . DI::baseUrl() . '/search?tag=' . rawurlencode($matches[1])
2084 . '" class="tag" rel="tag" title="' . XML::escape($matches[1]) . '">'
2085 . XML::escape($matches[1]) . '</a>';
2091 // We need no target="_blank" rel="noopener noreferrer" for local links
2092 // convert links start with DI::baseUrl() as local link without the target="_blank" rel="noopener noreferrer" attribute
2093 $escapedBaseUrl = preg_quote(DI::baseUrl(), '/');
2094 $text = preg_replace("/\[url\](".$escapedBaseUrl.".*?)\[\/url\]/ism", '<a href="$1">$1</a>', $text);
2095 $text = preg_replace("/\[url\=(".$escapedBaseUrl.".*?)\](.*?)\[\/url\]/ism", '<a href="$1">$2</a>', $text);
2097 $text = preg_replace("/\[url\](.*?)\[\/url\]/ism", '<a href="$1" target="_blank" rel="noopener noreferrer">$1</a>', $text);
2098 $text = preg_replace("/\[url\=(.*?)\](.*?)\[\/url\]/ism", '<a href="$1" target="_blank" rel="noopener noreferrer">$2</a>', $text);
2100 // Red compatibility, though the link can't be authenticated on Friendica
2101 $text = preg_replace("/\[zrl\=(.*?)\](.*?)\[\/zrl\]/ism", '<a href="$1" target="_blank" rel="noopener noreferrer">$2</a>', $text);
2104 // we may need to restrict this further if it picks up too many strays
2105 // link acct:user@host to a webfinger profile redirector
2107 $text = preg_replace('/acct:([^@]+)@((?!\-)(?:[a-zA-Z\d\-]{0,62}[a-zA-Z\d]\.){1,126}(?!\d+)[a-zA-Z\d]{1,63})/', '<a href="' . DI::baseUrl() . '/acctlink?addr=$1@$2" target="extlink">acct:$1@$2</a>', $text);
2109 // Perform MAIL Search
2110 $text = preg_replace("/\[mail\](.*?)\[\/mail\]/", '<a href="mailto:$1">$1</a>', $text);
2111 $text = preg_replace("/\[mail\=(.*?)\](.*?)\[\/mail\]/", '<a href="mailto:$1">$2</a>', $text);
2113 /// @todo What is the meaning of these lines?
2114 $text = preg_replace('/\[\&\;([#a-z0-9]+)\;\]/', '&$1;', $text);
2115 $text = preg_replace('/\&\#039\;/', '\'', $text);
2117 // Currently deactivated, it made problems with " inside of alt texts.
2118 //$text = preg_replace('/\"\;/', '"', $text);
2120 // fix any escaped ampersands that may have been converted into links
2121 $text = preg_replace('/\<([^>]*?)(src|href)=(.*?)\&\;(.*?)\>/ism', '<$1$2=$3&$4>', $text);
2123 // sanitizes src attributes (http and redir URLs for displaying in a web page, cid used for inline images in emails)
2124 $allowed_src_protocols = ['//', 'http://', 'https://', 'redir/', 'cid:'];
2126 array_walk($allowed_src_protocols, function(&$value) { $value = preg_quote($value, '#');});
2128 $text = preg_replace('#<([^>]*?)(src)="(?!' . implode('|', $allowed_src_protocols) . ')(.*?)"(.*?)>#ism',
2129 '<$1$2=""$4 data-original-src="$3" class="invalid-src" title="' . DI::l10n()->t('Invalid source protocol') . '">', $text);
2131 // sanitize href attributes (only allowlisted protocols URLs)
2132 // default value for backward compatibility
2133 $allowed_link_protocols = DI::config()->get('system', 'allowed_link_protocols', []);
2135 // Always allowed protocol even if config isn't set or not including it
2136 $allowed_link_protocols[] = '//';
2137 $allowed_link_protocols[] = 'http://';
2138 $allowed_link_protocols[] = 'https://';
2139 $allowed_link_protocols[] = 'redir/';
2141 array_walk($allowed_link_protocols, function(&$value) { $value = preg_quote($value, '#');});
2143 $regex = '#<([^>]*?)(href)="(?!' . implode('|', $allowed_link_protocols) . ')(.*?)"(.*?)>#ism';
2144 $text = preg_replace($regex, '<$1$2="javascript:void(0)"$4 data-original-href="$3" class="invalid-href" title="' . DI::l10n()->t('Invalid link protocol') . '">', $text);
2147 $text = self::convertShare(
2149 function (array $attributes, array $author_contact, $content, $is_quote_share) use ($simple_html) {
2150 return self::convertShareCallback($attributes, $author_contact, $content, $is_quote_share, $simple_html);
2154 $text = self::interpolateSavedImagesIntoItemBody($uriid, $text, $saved_image);
2157 }); // Escaped noparse, nobb, pre
2159 // Remove escaping tags and replace new lines that remain
2160 $text = preg_replace_callback('/\[(noparse|nobb)](.*?)\[\/\1]/ism', function ($match) {
2161 return str_replace("\n", "<br>", $match[2]);
2164 // Additionally, [pre] tags preserve spaces
2165 $text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", function ($match) {
2166 return str_replace([' ', "\n"], [' ', "<br>"], htmlentities($match[1], ENT_NOQUOTES,'UTF-8'));
2172 $text = preg_replace_callback("#\[code(?:=([^\]]*))?\](.*?)\[\/code\]#ism",
2173 function ($matches) {
2174 if (strpos($matches[2], "\n") !== false) {
2175 $return = '<pre><code class="language-' . trim($matches[1]) . '">' . htmlentities(trim($matches[2], "\n\r"), ENT_NOQUOTES, 'UTF-8') . '</code></pre>';
2177 $return = '<code>' . htmlentities($matches[2], ENT_NOQUOTES, 'UTF-8') . '</code>';
2185 // Default iframe allowed domains/path
2186 $allowedIframeDomains = [
2187 DI::baseUrl()->getHostname()
2188 . (DI::baseUrl()->getUrlPath() ? '/' . DI::baseUrl()->getUrlPath() : '')
2189 . '/oembed/', # The path part has to change with the source in Content\Oembed::iframe
2190 'www.youtube.com/embed/',
2191 'player.vimeo.com/video/',
2194 $allowedIframeDomains = array_merge(
2195 $allowedIframeDomains,
2196 DI::config()->get('system', 'allowed_oembed') ?
2197 explode(',', DI::config()->get('system', 'allowed_oembed'))
2201 $text = HTML::purify($text, $allowedIframeDomains);
2202 DI::profiler()->stopRecording();
2208 * Strips the "abstract" tag from the provided text
2210 * @param string $text The text with BBCode
2211 * @return string The same text - but without "abstract" element
2213 public static function stripAbstract(string $text): string
2215 DI::profiler()->startRecording('rendering');
2217 $text = BBCode::performWithEscapedTags($text, ['code', 'noparse', 'nobb', 'pre'], function ($text) {
2218 $text = preg_replace("/[\s|\n]*\[abstract\].*?\[\/abstract\][\s|\n]*/ism", ' ', $text);
2219 $text = preg_replace("/[\s|\n]*\[abstract=.*?\].*?\[\/abstract][\s|\n]*/ism", ' ', $text);
2223 DI::profiler()->stopRecording();
2228 * Returns the value of the "abstract" element
2230 * @param string $text The text that maybe contains the element
2231 * @param string $addon The addon for which the abstract is meant for
2232 * @return string The abstract
2234 public static function getAbstract(string $text, string $addon = ''): string
2236 DI::profiler()->startRecording('rendering');
2237 $addon = strtolower($addon);
2239 $abstract = BBCode::performWithEscapedTags($text, ['code', 'noparse', 'nobb', 'pre'], function ($text) use ($addon) {
2240 if ($addon && preg_match('#\[abstract=' . preg_quote($addon, '#') . '](.*?)\[/abstract]#ism', $text, $matches)) {
2244 if (preg_match("#\[abstract](.*?)\[/abstract]#ism", $text, $matches)) {
2251 DI::profiler()->stopRecording();
2256 * Callback function to replace a Friendica style mention in a mention for Diaspora
2258 * @param array $match Matching values for the callback
2259 * [1] = Mention type (! or @)
2262 * @return string Replaced mention
2263 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2264 * @throws \ImagickException
2266 private static function bbCodeMention2DiasporaCallback(array $match): string
2268 $contact = Contact::getByURL($match[3], false, ['addr']);
2269 if (empty($contact['addr'])) {
2273 $mention = $match[1] . '{' . $match[2] . '; ' . $contact['addr'] . '}';
2278 * Converts a BBCode text into Markdown
2280 * This function converts a BBCode item body to be sent to Markdown-enabled
2281 * systems like Diaspora and Libertree
2283 * @param string $text
2284 * @param bool $for_diaspora Diaspora requires more changes than Libertree
2286 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2288 public static function toMarkdown(string $text, bool $for_diaspora = true): string
2290 DI::profiler()->startRecording('rendering');
2291 $original_text = $text;
2293 // Since Diaspora is creating a summary for links, this function removes them before posting
2294 if ($for_diaspora) {
2295 $text = self::removeShareInformation($text);
2299 * Transform #tags, strip off the [url] and replace spaces with underscore
2301 $url_search_string = "^\[\]";
2302 $text = preg_replace_callback("/#\[url\=([$url_search_string]*)\](.*?)\[\/url\]/i",
2303 function ($matches) {
2304 return '#' . str_replace(' ', '_', $matches[2]);
2309 // Converting images with size parameters to simple images. Markdown doesn't know it.
2310 $text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $text);
2312 // Convert it to HTML - don't try oembed
2313 if ($for_diaspora) {
2314 $text = self::convert($text, false, self::DIASPORA);
2316 // Add all tags that maybe were removed
2317 if (preg_match_all("/#\[url\=([$url_search_string]*)\](.*?)\[\/url\]/ism", $original_text, $tags)) {
2319 foreach ($tags[2] as $tag) {
2320 $tag = html_entity_decode($tag, ENT_QUOTES, 'UTF-8');
2321 if (!strpos(html_entity_decode($text, ENT_QUOTES, 'UTF-8'), '#' . $tag)) {
2322 $tagline .= '#' . $tag . ' ';
2325 $text = $text . ' ' . $tagline;
2328 $text = self::convert($text, false, self::CONNECTORS);
2331 // If a link is followed by a quote then there should be a newline before it
2332 // Maybe we should make this newline at every time before a quote.
2333 $text = str_replace(['</a><blockquote>'], ['</a><br><blockquote>'], $text);
2335 // Now convert HTML to Markdown
2336 $text = HTML::toMarkdown($text);
2338 // Libertree has a problem with escaped hashtags.
2339 $text = str_replace(['\#'], ['#'], $text);
2341 // Remove any leading or trailing whitespace, as this will mess up
2342 // the Diaspora signature verification and cause the item to disappear
2343 $text = trim($text);
2345 if ($for_diaspora) {
2346 $url_search_string = "^\[\]";
2347 $text = preg_replace_callback(
2348 "/([@!])\[(.*?)\]\(([$url_search_string]*?)\)/ism",
2349 ['self', 'bbCodeMention2DiasporaCallback'],
2354 Hook::callAll('bb2diaspora', $text);
2356 DI::profiler()->stopRecording();
2361 * Pull out all #hashtags and @person tags from $string.
2363 * We also get @person@domain.com - which would make
2364 * the regex quite complicated as tags can also
2365 * end a sentence. So we'll run through our results
2366 * and strip the period from any tags which end with one.
2367 * Returns array of tags found, or empty array.
2369 * @param string $string Post content
2370 * @return array List of tag and person names
2372 public static function getTags(string $string): array
2374 DI::profiler()->startRecording('rendering');
2377 self::performWithEscapedTags($string, ['noparse', 'pre', 'code', 'img'], function ($string) use (&$ret) {
2378 // Convert hashtag links to hashtags
2379 $string = preg_replace('/#\[url\=([^\[\]]*)\](.*?)\[\/url\]/ism', '#$2 ', $string);
2381 // Force line feeds at bbtags
2382 $string = str_replace(['[', ']'], ["\n[", "]\n"], $string);
2384 // ignore anything in a bbtag
2385 $string = preg_replace('/\[(.*?)\]/sm', '', $string);
2387 // Match full names against @tags including the space between first and last
2388 // We will look these up afterward to see if they are full names or not recognisable.
2390 if (preg_match_all('/(@[^ \x0D\x0A,:?]+ [^ \x0D\x0A@,:?]+)([ \x0D\x0A@,:?]|$)/', $string, $matches)) {
2391 foreach ($matches[1] as $match) {
2392 if (strstr($match, ']')) {
2393 // we might be inside a bbcode color tag - leave it alone
2397 if (substr($match, -1, 1) === '.') {
2398 $ret[] = substr($match, 0, -1);
2405 // Otherwise pull out single word tags. These can be @nickname, @first_last
2408 if (preg_match_all('/([!#@][^\^ \x0D\x0A,;:?\']*[^\^ \x0D\x0A,;:?!\'.])/', $string, $matches)) {
2409 foreach ($matches[1] as $match) {
2410 if (strstr($match, ']')) {
2411 // we might be inside a bbcode color tag - leave it alone
2415 // try not to catch url fragments
2416 if (strpos($string, $match) && preg_match('/[a-zA-z0-9\/]/', substr($string, strpos($string, $match) - 1, 1))) {
2425 DI::profiler()->stopRecording();
2426 return array_unique($ret);
2430 * Expand tags to URLs, checks the tag is at the start of a line or preceded by a non-word character
2432 * @param string $body HTML/BBCode
2433 * @return string body with expanded tags
2435 public static function expandTags(string $body): string
2437 return preg_replace_callback("/(?<=\W|^)([!#@])([^\^ \x0D\x0A,;:?'\"]*[^\^ \x0D\x0A,;:?!'\".])/",
2438 function (array $match) {
2439 switch ($match[1]) {
2442 $contact = Contact::getByURL($match[2]);
2443 if (!empty($contact)) {
2444 return $match[1] . '[url=' . $contact['url'] . ']' . $contact['name'] . '[/url]';
2446 return $match[1] . $match[2];
2452 return $match[1] . '[url=' . DI::baseUrl() . '/search?tag=' . $match[2] . ']' . $match[2] . '[/url]';
2458 * Perform a custom function on a text after having escaped blocks enclosed in the provided tag list.
2460 * @param string $text HTML/BBCode
2461 * @param array $tagList A list of tag names, e.g ['noparse', 'nobb', 'pre']
2462 * @param callable $callback
2464 * @see Strings::performWithEscapedBlocks
2466 public static function performWithEscapedTags(string $text, array $tagList, callable $callback): string
2468 $tagList = array_map('preg_quote', $tagList);
2470 return Strings::performWithEscapedBlocks($text, '#\[(?:' . implode('|', $tagList) . ').*?\[/(?:' . implode('|', $tagList) . ')]#ism', $callback);
2474 * Replaces mentions in the provided message body in BBCode links for the provided user and network if any
2476 * @param string $body HTML/BBCode
2477 * @param int $profile_uid Profile user id
2478 * @param string $network Network name
2479 * @return string HTML/BBCode with inserted images
2480 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2481 * @throws \ImagickException
2483 public static function setMentions(string $body, $profile_uid = 0, $network = '')
2485 DI::profiler()->startRecording('rendering');
2486 $body = self::performWithEscapedTags($body, ['noparse', 'pre', 'code', 'img'], function ($body) use ($profile_uid, $network) {
2487 $tags = self::getTags($body);
2491 foreach ($tags as $tag) {
2492 $tag_type = substr($tag, 0, 1);
2494 if ($tag_type == Tag::TAG_CHARACTER[Tag::HASHTAG]) {
2499 * If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
2500 * Robert Johnson should be first in the $tags array
2502 foreach ($tagged as $nextTag) {
2503 if (stristr($nextTag, $tag . ' ')) {
2508 if (($success = Item::replaceTag($body, $profile_uid, $tag, $network)) && $success['replaced']) {
2516 DI::profiler()->stopRecording();
2521 * @param string $author Author display name
2522 * @param string $profile Author profile URL
2523 * @param string $avatar Author profile picture URL
2524 * @param string $link Post source URL
2525 * @param string $posted Post created date
2526 * @param string|null $guid Post guid (if any)
2527 * @param string|null $uri Post uri (if any)
2529 * @TODO Rewrite to handle over whole record array
2531 public static function getShareOpeningTag(string $author, string $profile, string $avatar, string $link, string $posted, string $guid = null, string $uri = null): string
2533 DI::profiler()->startRecording('rendering');
2534 $header = "[share author='" . str_replace(["'", "[", "]"], ["'", "[", "]"], $author) .
2535 "' profile='" . str_replace(["'", "[", "]"], ["'", "[", "]"], $profile) .
2536 "' avatar='" . str_replace(["'", "[", "]"], ["'", "[", "]"], $avatar) .
2537 "' link='" . str_replace(["'", "[", "]"], ["'", "[", "]"], $link) .
2538 "' posted='" . str_replace(["'", "[", "]"], ["'", "[", "]"], $posted);
2541 $header .= "' guid='" . str_replace(["'", "[", "]"], ["'", "[", "]"], $guid);
2545 $header .= "' message_id='" . str_replace(["'", "[", "]"], ["'", "[", "]"], $uri);
2550 DI::profiler()->stopRecording();
2555 * Returns the BBCode relevant to embed the provided URL in a post body.
2556 * For media type, it will return [img], [video] and [audio] tags.
2557 * For regular web pages, it will either output a [bookmark] tag if title and description were provided,
2558 * an [attachment] tag or a simple [url] tag depending on $tryAttachment.
2560 * @param string $url
2561 * @param bool $tryAttachment
2562 * @param string|null $title
2563 * @param string|null $description
2564 * @param string|null $tags
2566 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2567 * @see ParseUrl::getSiteinfoCached
2569 public static function embedURL(string $url, bool $tryAttachment = true, string $title = null, string $description = null, string $tags = null): string
2571 DI::profiler()->startRecording('rendering');
2572 DI::logger()->info($url);
2574 // If there is already some content information submitted we don't
2575 // need to parse the url for content.
2576 if (!empty($title) && !empty($description)) {
2577 $title = str_replace(["\r", "\n"], ['', ''], $title);
2579 $description = '[quote]' . trim($description) . '[/quote]' . "\n";
2582 if (!empty($tags)) {
2583 $arr_tags = ParseUrl::convertTagsToArray($tags);
2584 if (count($arr_tags)) {
2585 $str_tags = "\n" . implode(' ', $arr_tags) . "\n";
2589 $result = sprintf('[bookmark=%s]%s[/bookmark]%s', $url, ($title) ? $title : $url, $description) . $str_tags;
2591 DI::logger()->info('(unparsed): returns: ' . $result);
2593 DI::profiler()->stopRecording();
2597 $siteinfo = ParseUrl::getSiteinfoCached($url);
2599 if (in_array($siteinfo['type'], ['image', 'video', 'audio'])) {
2600 switch ($siteinfo['type']) {
2602 $bbcode = "\n" . '[video]' . $url . '[/video]' . "\n";
2605 $bbcode = "\n" . '[audio]' . $url . '[/audio]' . "\n";
2608 $bbcode = "\n" . '[img]' . $url . '[/img]' . "\n";
2612 DI::profiler()->stopRecording();
2616 unset($siteinfo['keywords']);
2618 // Bypass attachment if parse url for a comment
2619 if (!$tryAttachment) {
2620 DI::profiler()->stopRecording();
2621 return "\n" . '[url=' . $url . ']' . $siteinfo['title'] . '[/url]';
2624 // Format it as BBCode attachment
2625 $bbcode = "\n" . PageInfo::getFooterFromData($siteinfo);
2626 DI::profiler()->stopRecording();