3 * @file include/bbcode.php
6 use Friendica\Content\Smilies;
7 use Friendica\Content\OEmbed;
8 use Friendica\Content\Text\BBCode;
9 use Friendica\Core\Addon;
10 use Friendica\Core\Cache;
11 use Friendica\Core\L10n;
12 use Friendica\Core\System;
13 use Friendica\Core\Config;
14 use Friendica\Model\Contact;
15 use Friendica\Util\Map;
16 use Friendica\Util\Network;
18 require_once 'include/event.php';
19 require_once 'mod/proxy.php';
21 function bb_PictureCacheExt($matches) {
22 if (strpos($matches[3], "data:image/") === 0) {
26 $matches[3] = proxy_url($matches[3]);
27 return "[img=" . $matches[1] . "x" . $matches[2] . "]" . $matches[3] . "[/img]";
30 function bb_PictureCache($matches) {
31 if (strpos($matches[1], "data:image/") === 0) {
35 $matches[1] = proxy_url($matches[1]);
36 return "[img]" . $matches[1] . "[/img]";
39 function bb_map_coords($match) {
40 // the extra space in the following line is intentional
41 return str_replace($match[0], '<div class="map" >' . Map::byCoordinates(str_replace('/', ' ', $match[1])) . '</div>', $match[0]);
43 function bb_map_location($match) {
44 // the extra space in the following line is intentional
45 return str_replace($match[0], '<div class="map" >' . Map::byLocation($match[1]) . '</div>', $match[0]);
49 * Processes [attachment] tags
51 * Note: Can produce a [bookmark] tag in the returned string
53 * @brief Processes [attachment] tags
54 * @param string $return
55 * @param bool|int $simplehtml
56 * @param bool $tryoembed
59 function bb_attachment($return, $simplehtml = false, $tryoembed = true)
61 $data = BBCode::getAttachmentData($return);
66 if (isset($data["title"])) {
67 $data["title"] = strip_tags($data["title"]);
68 $data["title"] = str_replace(["http://", "https://"], "", $data["title"]);
71 if (((strpos($data["text"], "[img=") !== false) || (strpos($data["text"], "[img]") !== false) || Config::get('system', 'always_show_preview')) && ($data["image"] != "")) {
72 $data["preview"] = $data["image"];
77 if ($simplehtml == 7) {
78 $return = style_url_for_mastodon($data["url"]);
79 } elseif (($simplehtml != 4) && ($simplehtml != 0)) {
80 $return = sprintf('<a href="%s" target="_blank">%s</a><br>', $data["url"], $data["title"]);
83 if ($tryoembed && OEmbed::isAllowedURL($data['url'])) {
84 $return = OEmbed::getHTML($data['url'], $data['title']);
86 throw new Exception('OEmbed is disabled for this attachment.');
88 } catch (Exception $e) {
89 if ($simplehtml != 4) {
90 $return = sprintf('<div class="type-%s">', $data["type"]);
93 if ($data["image"] != "") {
94 $return .= sprintf('<a href="%s" target="_blank"><img src="%s" alt="" title="%s" class="attachment-image" /></a><br />', $data["url"], proxy_url($data["image"]), $data["title"]);
95 } elseif ($data["preview"] != "") {
96 $return .= sprintf('<a href="%s" target="_blank"><img src="%s" alt="" title="%s" class="attachment-preview" /></a><br />', $data["url"], proxy_url($data["preview"]), $data["title"]);
99 if (($data["type"] == "photo") && ($data["url"] != "") && ($data["image"] != "")) {
100 $return .= sprintf('<a href="%s" target="_blank"><img src="%s" alt="" title="%s" class="attachment-image" /></a>', $data["url"], proxy_url($data["image"]), $data["title"]);
102 $return .= sprintf('<h4><a href="%s">%s</a></h4>', $data['url'], $data['title']);
105 if ($data["description"] != "" && $data["description"] != $data["title"]) {
106 $return .= sprintf('<blockquote>%s</blockquote>', trim(bbcode($data["description"])));
109 if ($data["type"] == "link") {
110 $return .= sprintf('<sup><a href="%s">%s</a></sup>', $data['url'], parse_url($data['url'], PHP_URL_HOST));
113 if ($simplehtml != 4) {
119 return trim($data["text"] . ' ' . $return . ' ' . $data["after"]);
122 function bb_remove_share_information($Text, $plaintext = false, $nolink = false) {
124 $data = BBCode::getAttachmentData($Text);
129 return $data["text"] . $data["after"];
132 $title = htmlentities($data["title"], ENT_QUOTES, 'UTF-8', false);
133 $text = htmlentities($data["text"], ENT_QUOTES, 'UTF-8', false);
134 if ($plaintext || (($title != "") && strstr($text, $title))) {
135 $data["title"] = $data["url"];
136 } elseif (($text != "") && strstr($title, $text)) {
137 $data["text"] = $data["title"];
138 $data["title"] = $data["url"];
141 if (($data["text"] == "") && ($data["title"] != "") && ($data["url"] == "")) {
142 return $data["title"] . $data["after"];
145 // If the link already is included in the post, don't add it again
146 if (($data["url"] != "") && strpos($data["text"], $data["url"])) {
147 return $data["text"] . $data["after"];
150 $text = $data["text"];
152 if (($data["url"] != "") && ($data["title"] != "")) {
153 $text .= "\n[url=" . $data["url"] . "]" . $data["title"] . "[/url]";
154 } elseif (($data["url"] != "")) {
155 $text .= "\n" . $data["url"];
158 return $text . "\n" . $data["after"];
161 function bb_cleanstyle($st) {
162 return "<span style=\"" . cleancss($st[1]) . ";\">" . $st[2] . "</span>";
165 function bb_cleanclass($st) {
166 return "<span class=\"" . cleancss($st[1]) . "\">" . $st[2] . "</span>";
169 function cleancss($input) {
173 $input = strtolower($input);
175 for ($i = 0; $i < strlen($input); $i++) {
176 $char = substr($input, $i, 1);
178 if (($char >= "a") && ($char <= "z")) {
182 if (!(strpos(" #;:0123456789-_.%", $char) === false)) {
191 * @brief Converts [url] BBCodes in a format that looks fine on Mastodon. (callback function)
192 * @param array $match Array with the matching values
193 * @return string reformatted link including HTML codes
195 function bb_style_url($match) {
198 if (isset($match[2]) && ($match[1] != $match[2])) {
202 $parts = parse_url($url);
203 if (!isset($parts['scheme'])) {
207 return style_url_for_mastodon($url);
211 * @brief Converts [url] BBCodes in a format that looks fine on Mastodon and GNU Social.
212 * @param string $url URL that is about to be reformatted
213 * @return string reformatted link including HTML codes
215 function style_url_for_mastodon($url) {
218 $parts = parse_url($url);
219 $scheme = $parts['scheme'].'://';
220 $styled_url = str_replace($scheme, '', $styled_url);
222 $html = '<a href="%s" class="attachment" rel="nofollow noopener" target="_blank">'.
223 '<span class="invisible">%s</span>';
225 if (strlen($styled_url) > 30) {
226 $html .= '<span class="ellipsis">%s</span>'.
227 '<span class="invisible">%s</span></a>';
229 $ellipsis = substr($styled_url, 0, 30);
230 $rest = substr($styled_url, 30);
231 return sprintf($html, $url, $scheme, $ellipsis, $rest);
234 return sprintf($html, $url, $scheme, $styled_url);
238 function stripcode_br_cb($s) {
239 return '[code]' . str_replace('<br />', '', $s[1]) . '[/code]';
243 * [noparse][i]italic[/i][/noparse] turns into
244 * [noparse][ i ]italic[ /i ][/noparse],
245 * to hide them from parser.
247 function bb_spacefy($st) {
248 $whole_match = $st[0];
250 $spacefied = preg_replace("/\[(.*?)\]/", "[ $1 ]", $captured);
251 $new_str = str_replace($captured, $spacefied, $whole_match);
256 * The previously spacefied [noparse][ i ]italic[ /i ][/noparse],
257 * now turns back and the [noparse] tags are trimed
258 * returning [i]italic[/i]
260 function bb_unspacefy_and_trim($st) {
262 $unspacefied = preg_replace("/\[ (.*?)\ ]/", "[$1]", $captured);
266 function bb_find_open_close($s, $open, $close, $occurence = 1) {
267 if ($occurence < 1) {
272 for ($i = 1; $i <= $occurence; $i++) {
273 if ($start_pos !== false) {
274 $start_pos = strpos($s, $open, $start_pos + 1);
278 if ($start_pos === false) {
282 $end_pos = strpos($s, $close, $start_pos);
284 if ($end_pos === false) {
288 $res = [ 'start' => $start_pos, 'end' => $end_pos ];
293 function get_bb_tag_pos($s, $name, $occurence = 1) {
294 if ($occurence < 1) {
299 for ($i = 1; $i <= $occurence; $i++) {
300 if ($start_open !== false) {
301 $start_open = strpos($s, '[' . $name, $start_open + 1); // allow [name= type tags
305 if ($start_open === false) {
309 $start_equal = strpos($s, '=', $start_open);
310 $start_close = strpos($s, ']', $start_open);
312 if ($start_close === false) {
318 $end_open = strpos($s, '[/' . $name . ']', $start_close);
320 if ($end_open === false) {
326 'open' => $start_open,
327 'close' => $start_close
331 'close' => $end_open + strlen('[/' . $name . ']')
335 if ($start_equal !== false) {
336 $res['start']['equal'] = $start_equal + 1;
342 function bb_tag_preg_replace($pattern, $replace, $name, $s) {
347 $pos = get_bb_tag_pos($string, $name, $occurence);
348 while ($pos !== false && $occurence < 1000) {
349 $start = substr($string, 0, $pos['start']['open']);
350 $subject = substr($string, $pos['start']['open'], $pos['end']['close'] - $pos['start']['open']);
351 $end = substr($string, $pos['end']['close']);
352 if ($end === false) {
356 $subject = preg_replace($pattern, $replace, $subject);
357 $string = $start . $subject . $end;
360 $pos = get_bb_tag_pos($string, $name, $occurence);
366 function bb_extract_images($body) {
373 $img_start = strpos($orig_body, '[img');
374 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
375 $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
376 while (($img_st_close !== false) && ($img_end !== false)) {
378 $img_st_close++; // make it point to AFTER the closing bracket
379 $img_end += $img_start;
381 if (! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
382 // This is an embedded image
384 $saved_image[$cnt] = substr($orig_body, $img_start + $img_st_close, $img_end - ($img_start + $img_st_close));
385 $new_body = $new_body . substr($orig_body, 0, $img_start) . '[$#saved_image' . $cnt . '#$]';
389 $new_body = $new_body . substr($orig_body, 0, $img_end + strlen('[/img]'));
392 $orig_body = substr($orig_body, $img_end + strlen('[/img]'));
394 if ($orig_body === false) {
395 // in case the body ends on a closing image tag
399 $img_start = strpos($orig_body, '[img');
400 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
401 $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
404 $new_body = $new_body . $orig_body;
406 return ['body' => $new_body, 'images' => $saved_image];
409 function bb_replace_images($body, $images) {
414 foreach ($images as $image) {
415 // We're depending on the property of 'foreach' (specified on the PHP website) that
416 // it loops over the array starting from the first element and going sequentially
417 // to the last element
418 $newbody = str_replace('[$#saved_image' . $cnt . '#$]', '<img src="' . proxy_url($image) .'" alt="' . L10n::t('Image/photo') . '" />', $newbody);
426 * Processes [share] tags
428 * Note: Can produce a [bookmark] tag in the output
430 * @brief Processes [share] tags
431 * @param array $share preg_match_callback result array
432 * @param bool|int $simplehtml
435 function bb_ShareAttributes($share, $simplehtml)
437 $attributes = $share[2];
440 preg_match("/author='(.*?)'/ism", $attributes, $matches);
441 if (x($matches, 1)) {
442 $author = html_entity_decode($matches[1], ENT_QUOTES, 'UTF-8');
445 preg_match('/author="(.*?)"/ism', $attributes, $matches);
446 if (x($matches, 1)) {
447 $author = $matches[1];
451 preg_match("/profile='(.*?)'/ism", $attributes, $matches);
452 if (x($matches, 1)) {
453 $profile = $matches[1];
456 preg_match('/profile="(.*?)"/ism', $attributes, $matches);
457 if (x($matches, 1)) {
458 $profile = $matches[1];
462 preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
463 if (x($matches, 1)) {
464 $avatar = $matches[1];
467 preg_match('/avatar="(.*?)"/ism', $attributes, $matches);
468 if (x($matches, 1)) {
469 $avatar = $matches[1];
473 preg_match("/link='(.*?)'/ism", $attributes, $matches);
474 if (x($matches, 1)) {
478 preg_match('/link="(.*?)"/ism', $attributes, $matches);
479 if (x($matches, 1)) {
485 preg_match("/posted='(.*?)'/ism", $attributes, $matches);
486 if (x($matches, 1)) {
487 $posted = $matches[1];
490 preg_match('/posted="(.*?)"/ism', $attributes, $matches);
491 if (x($matches, 1)) {
492 $posted = $matches[1];
495 // We only call this so that a previously unknown contact can be added.
496 // This is important for the function "get_contact_details_by_url".
497 // This function then can fetch an entry from the contact table.
498 Contact::getIdForURL($profile, 0);
500 $data = Contact::getDetailsByURL($profile);
502 if (x($data, "name") && x($data, "addr")) {
503 $userid_compact = $data["name"] . " (" . $data["addr"] . ")";
505 $userid_compact = GetProfileUsername($profile, $author, true);
508 if (x($data, "addr")) {
509 $userid = $data["addr"];
511 $userid = GetProfileUsername($profile, $author, false);
514 if (x($data, "name")) {
515 $author = $data["name"];
518 if (x($data, "micro")) {
519 $avatar = $data["micro"];
522 $preshare = trim($share[1]);
523 if ($preshare != "") {
524 $preshare .= "<br />";
527 switch ($simplehtml) {
529 $text = $preshare . html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8') . ' <a href="' . $profile . '">' . $userid . "</a>: <br />»" . $share[3] . "«";
532 $text = $preshare . html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8') . ' ' . $userid_compact . ": <br />" . $share[3];
535 $headline .= '<b>' . html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8') . $userid . ':</b><br />';
537 $text = trim($share[1]);
543 if (stripos(normalise_link($link), 'http://twitter.com/') === 0) {
544 $text .= $headline . '<blockquote>' . trim($share[3]) . "</blockquote><br />";
547 $text .= '<br /><a href="' . $link . '">[l]</a>';
550 $text .= '<br /><a href="' . $link . '">' . $link . '</a>';
555 $headline .= '<br /><b>' . html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8');
556 $headline .= L10n::t('<a href="%1$s" target="_blank">%2$s</a> %3$s', $link, $userid, $posted);
557 $headline .= ":</b><br />";
559 $text = trim($share[1]);
565 $text .= $headline . '<blockquote class="shared_content">' . trim($share[3]) . "</blockquote><br />";
569 $text = $preshare . html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8') . ' ' . $userid_compact . ": <br />" . $share[3];
572 $text = $preshare . ">> @" . $userid_compact . ": <br />" . $share[3];
574 case 7: // statusnet/GNU Social
575 $text = $preshare . html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8') . " @" . $userid_compact . ": " . $share[3];
578 $text = $preshare . "RT @" . $userid_compact . ": " . $share[3];
580 case 9: // Google+/Facebook
581 $text = $preshare . html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8') . ' ' . $userid_compact . ": <br />" . $share[3];
584 $text .= "<br /><br />" . $link;
588 // Transforms quoted tweets in rich attachments to avoid nested tweets
589 if (stripos(normalise_link($link), 'http://twitter.com/') === 0 && OEmbed::isAllowedURL($link)) {
591 $oembed = OEmbed::getHTML($link, $preshare);
592 } catch (Exception $e) {
593 $oembed = sprintf('[bookmark=%s]%s[/bookmark]', $link, $preshare);
596 $text = $preshare . $oembed;
598 $text = trim($share[1]) . "\n";
600 $avatar = proxy_url($avatar, false, PROXY_SIZE_THUMB);
602 $tpl = get_markup_template('shared_content.tpl');
603 $text .= replace_macros($tpl, [
604 '$profile' => $profile,
605 '$avatar' => $avatar,
606 '$author' => $author,
608 '$posted' => $posted,
609 '$content' => trim($share[3])
618 function GetProfileUsername($profile, $username, $compact = false, $getnetwork = false) {
620 $twitter = preg_replace("=https?://twitter.com/(.*)=ism", "$1@twitter.com", $profile);
621 if ($twitter != $profile) {
623 return NETWORK_TWITTER;
624 } elseif ($compact) {
627 return ($username . " (" . $twitter . ")");
631 $appnet = preg_replace("=https?://alpha.app.net/(.*)=ism", "$1@alpha.app.net", $profile);
632 if ($appnet != $profile) {
634 return NETWORK_APPNET;
635 } elseif ($compact) {
638 return ($username . " (" . $appnet . ")");
642 $gplus = preg_replace("=https?://plus.google.com/(.*)=ism", "$1@plus.google.com", $profile);
643 if ($gplus != $profile) {
645 return NETWORK_GPLUS;
646 } elseif ($compact) {
647 return ($gplususername . " (" . $username . ")");
649 return ($username . " (" . $gplus . ")");
653 $friendica = preg_replace("=https?://(.*)/profile/(.*)=ism", "$2@$1", $profile);
654 if ($friendica != $profile) {
657 } elseif ($compact) {
660 return ($username . " (" . $friendica . ")");
664 $diaspora = preg_replace("=https?://(.*)/u/(.*)=ism", "$2@$1", $profile);
665 if ($diaspora != $profile) {
667 return NETWORK_DIASPORA;
668 } elseif ($compact) {
671 return ($username . " (" . $diaspora . ")");
675 $red = preg_replace("=https?://(.*)/channel/(.*)=ism", "$2@$1", $profile);
676 if ($red != $profile) {
678 // red is identified as Diaspora - friendica can't connect directly to it
679 return NETWORK_DIASPORA;
680 } elseif ($compact) {
683 return ($username . " (" . $red . ")");
687 $StatusnetHost = preg_replace("=https?://(.*)/user/(.*)=ism", "$1", $profile);
688 if ($StatusnetHost != $profile) {
689 $StatusnetUser = preg_replace("=https?://(.*)/user/(.*)=ism", "$2", $profile);
690 if ($StatusnetUser != $profile) {
691 /// @TODO Some hosts run on https, not just http and sometimes http is disabled, let's support both here
692 $UserData = Network::fetchUrl("http://".$StatusnetHost."/api/users/show.json?user_id=".$StatusnetUser);
693 $user = json_decode($UserData);
696 return NETWORK_STATUSNET;
697 } elseif ($compact) {
698 return ($user->screen_name . "@" . $StatusnetHost);
700 return ($username . " (" . $user->screen_name . "@" . $StatusnetHost . ")");
706 // pumpio (http://host.name/user)
707 $rest = preg_replace("=https?://([\.\w]+)/([\.\w]+)(.*)=ism", "$3", $profile);
709 $pumpio = preg_replace("=https?://([\.\w]+)/([\.\w]+)(.*)=ism", "$2@$1", $profile);
710 if ($pumpio != $profile) {
712 return NETWORK_PUMPIO;
713 } elseif ($compact) {
716 return ($username . " (" . $pumpio . ")");
724 function bb_DiasporaLinks($match) {
725 return "[url=".System::baseUrl()."/display/".$match[1]."]".$match[2]."[/url]";
728 function bb_RemovePictureLinks($match) {
729 $text = Cache::get($match[1]);
731 if (is_null($text)) {
734 $stamp1 = microtime(true);
736 $ch = @curl_init($match[1]);
737 @curl_setopt($ch, CURLOPT_NOBODY, true);
738 @curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
739 @curl_setopt($ch, CURLOPT_USERAGENT, $a->get_useragent());
741 $curl_info = @curl_getinfo($ch);
743 $a->save_timestamp($stamp1, "network");
745 if (substr($curl_info["content_type"], 0, 6) == "image/")
746 $text = "[url=".$match[1]."]".$match[1]."[/url]";
748 $text = "[url=".$match[2]."]".$match[2]."[/url]";
750 // if its not a picture then look if its a page that contains a picture link
751 $body = Network::fetchUrl($match[1]);
753 $doc = new DOMDocument();
754 @$doc->loadHTML($body);
755 $xpath = new DomXPath($doc);
756 $list = $xpath->query("//meta[@name]");
757 foreach ($list as $node) {
760 if ($node->attributes->length)
761 foreach ($node->attributes as $attribute)
762 $attr[$attribute->name] = $attribute->value;
764 if (strtolower($attr["name"]) == "twitter:image")
765 $text = "[url=".$attr["content"]."]".$attr["content"]."[/url]";
768 Cache::set($match[1],$text);
774 function bb_expand_links($match) {
775 if (($match[3] == "") || ($match[2] == $match[3]) || stristr($match[2], $match[3])) {
776 return ($match[1] . "[url]" . $match[2] . "[/url]");
778 return ($match[1] . $match[3] . " [url]" . $match[2] . "[/url]");
782 function bb_CleanPictureLinksSub($match) {
783 $text = Cache::get($match[1]);
785 if (is_null($text)) {
788 $stamp1 = microtime(true);
790 $ch = @curl_init($match[1]);
791 @curl_setopt($ch, CURLOPT_NOBODY, true);
792 @curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
793 @curl_setopt($ch, CURLOPT_USERAGENT, $a->get_useragent());
795 $curl_info = @curl_getinfo($ch);
797 $a->save_timestamp($stamp1, "network");
799 // if its a link to a picture then embed this picture
800 if (substr($curl_info["content_type"], 0, 6) == "image/")
801 $text = "[img]".$match[1]."[/img]";
803 $text = "[img]".$match[2]."[/img]";
805 // if its not a picture then look if its a page that contains a picture link
806 $body = Network::fetchUrl($match[1]);
808 $doc = new DOMDocument();
809 @$doc->loadHTML($body);
810 $xpath = new DomXPath($doc);
811 $list = $xpath->query("//meta[@name]");
812 foreach ($list as $node) {
815 if ($node->attributes->length)
816 foreach ($node->attributes as $attribute)
817 $attr[$attribute->name] = $attribute->value;
819 if (strtolower($attr["name"]) == "twitter:image")
820 $text = "[img]".$attr["content"]."[/img]";
823 Cache::set($match[1],$text);
829 function bb_CleanPictureLinks($text) {
830 $text = preg_replace_callback("&\[url=([^\[\]]*)\]\[img\](.*)\[\/img\]\[\/url\]&Usi", 'bb_CleanPictureLinksSub', $text);
834 function bb_highlight($match) {
835 if (in_array(strtolower($match[1]), ['php', 'css', 'mysql', 'sql', 'abap', 'diff', 'html', 'perl', 'ruby',
836 'vbscript', 'avrc', 'dtd', 'java', 'xml', 'cpp', 'python', 'javascript', 'js', 'sh'])) {
837 return text_highlight($match[2], strtolower($match[1]));
843 * @brief Converts a BBCode message to HTML message
845 * BBcode 2 HTML was written by WAY2WEB.net
846 * extended to work with Mistpark/Friendica - Mike Macgirvin
848 * Simple HTML values meaning:
849 * - 0: Friendica display
851 * - 2: Used for Facebook, Google+, Windows Phone push, Friendica API
852 * - 3: Used before converting to Markdown in bb2diaspora.php
853 * - 4: Used for WordPress, Libertree (before Markdown), pump.io and tumblr
855 * - 6: Used for Appnet
856 * - 7: Used for dfrn, OStatus
857 * - 8: Used for WP backlink text setting
859 * @staticvar array $allowed_src_protocols
860 * @param string $Text
861 * @param bool $preserve_nl
862 * @param bool $tryoembed
863 * @param int $simplehtml
864 * @param bool $forplaintext
867 function bbcode($Text, $preserve_nl = false, $tryoembed = true, $simplehtml = false, $forplaintext = false)
872 * preg_match_callback function to replace potential Oembed tags with Oembed content
874 * $match[0] = [tag]$url[/tag] or [tag=$url]$title[/tag]
876 * $match[2] = $title or absent
878 $tryoembed_callback = function ($match)
881 $title = defaults($match, 2, null);
884 $return = OEmbed::getHTML($url, $title);
885 } catch (Exception $ex) {
892 // Hide all [noparse] contained bbtags by spacefying them
893 // POSSIBLE BUG --> Will the 'preg' functions crash if there's an embedded image?
895 $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_spacefy', $Text);
896 $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_spacefy', $Text);
897 $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_spacefy', $Text);
899 // Remove the abstract element. It is a non visible element.
900 $Text = remove_abstract($Text);
902 // Move all spaces out of the tags
903 $Text = preg_replace("/\[(\w*)\](\s*)/ism", '$2[$1]', $Text);
904 $Text = preg_replace("/(\s*)\[\/(\w*)\]/ism", '[/$2]$1', $Text);
906 // Extract the private images which use data urls since preg has issues with
907 // large data sizes. Stash them away while we do bbcode conversion, and then put them back
908 // in after we've done all the regex matching. We cannot use any preg functions to do this.
910 $extracted = bb_extract_images($Text);
911 $Text = $extracted['body'];
912 $saved_image = $extracted['images'];
914 // If we find any event code, turn it into an event.
915 // After we're finished processing the bbcode we'll
916 // replace all of the event code with a reformatted version.
918 $ev = bbtoevent($Text);
920 // Replace any html brackets with HTML Entities to prevent executing HTML or script
921 // Don't use strip_tags here because it breaks [url] search by replacing & with amp
923 $Text = str_replace("<", "<", $Text);
924 $Text = str_replace(">", ">", $Text);
926 // remove some newlines before the general conversion
927 $Text = preg_replace("/\s?\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism", "[share$1]$2[/share]", $Text);
928 $Text = preg_replace("/\s?\[quote(.*?)\]\s?(.*?)\s?\[\/quote\]\s?/ism", "[quote$1]$2[/quote]", $Text);
930 $Text = preg_replace("/\n\[code\]/ism", "[code]", $Text);
931 $Text = preg_replace("/\[\/code\]\n/ism", "[/code]", $Text);
933 // when the content is meant exporting to other systems then remove the avatar picture since this doesn't really look good on these systems
935 $Text = preg_replace("/\[share(.*?)avatar\s?=\s?'.*?'\s?(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism", "\n[share$1$2]$3[/share]", $Text);
938 // Check for [code] text here, before the linefeeds are messed with.
939 // The highlighter will unescape and re-escape the content.
940 if (strpos($Text, '[code=') !== false) {
941 $Text = preg_replace_callback("/\[code=(.*?)\](.*?)\[\/code\]/ism", 'bb_highlight', $Text);
943 // Convert new line chars to html <br /> tags
945 // nlbr seems to be hopelessly messed up
946 // $Text = nl2br($Text);
951 $Text = str_replace("\r\n", "\n", $Text);
953 // removing multiplicated newlines
954 if (Config::get("system", "remove_multiplicated_lines")) {
955 $search = ["\n\n\n", "\n ", " \n", "[/quote]\n\n", "\n[/quote]", "[/li]\n", "\n[li]", "\n[ul]", "[/ul]\n", "\n\n[share ", "[/attachment]\n",
956 "\n[h1]", "[/h1]\n", "\n[h2]", "[/h2]\n", "\n[h3]", "[/h3]\n", "\n[h4]", "[/h4]\n", "\n[h5]", "[/h5]\n", "\n[h6]", "[/h6]\n"];
957 $replace = ["\n\n", "\n", "\n", "[/quote]\n", "[/quote]", "[/li]", "[li]", "[ul]", "[/ul]", "\n[share ", "[/attachment]",
958 "[h1]", "[/h1]", "[h2]", "[/h2]", "[h3]", "[/h3]", "[h4]", "[/h4]", "[h5]", "[/h5]", "[h6]", "[/h6]"];
961 $Text = str_replace($search, $replace, $Text);
962 } while ($oldtext != $Text);
965 // Set up the parameters for a URL search string
966 $URLSearchString = "^\[\]";
967 // Set up the parameters for a MAIL search string
968 $MAILSearchString = $URLSearchString;
970 // if the HTML is used to generate plain text, then don't do this search, but replace all URL of that kind to text
971 if (!$forplaintext) {
972 // Autolink feature (thanks to http://code.seebz.net/p/autolink-php/)
973 // Currently disabled, since the function is too greedy
974 // $autolink_regex = "`([^\]\=\"']|^)(https?\://[^\s<]+[^\s<\.\)])`ism";
975 $autolink_regex = "/([^\]\='".'"'."]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism";
976 $Text = preg_replace($autolink_regex, '$1[url]$2[/url]', $Text);
977 if ($simplehtml == 7) {
978 $Text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism", 'bb_style_url', $Text);
979 $Text = preg_replace_callback("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", 'bb_style_url', $Text);
982 $Text = preg_replace("(\[url\]([$URLSearchString]*)\[\/url\])ism", " $1 ", $Text);
983 $Text = preg_replace_callback("&\[url=([^\[\]]*)\]\[img\](.*)\[\/img\]\[\/url\]&Usi", 'bb_RemovePictureLinks', $Text);
987 // Handle attached links or videos
988 $Text = bb_attachment($Text, $simplehtml, $tryoembed);
990 $Text = str_replace(["\r","\n"], ['<br />', '<br />'], $Text);
993 $Text = str_replace(["\n", "\r"], ['', ''], $Text);
996 // Remove all hashtag addresses
997 if ((!$tryoembed || $simplehtml) && !in_array($simplehtml, [3, 7])) {
998 $Text = preg_replace("/([#@!])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '$1$3', $Text);
999 } elseif ($simplehtml == 3) {
1000 $Text = preg_replace("/([@!])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1001 '$1<a href="$2">$3</a>',
1003 } elseif ($simplehtml == 7) {
1004 $Text = preg_replace("/([@!])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1005 '$1<span class="vcard"><a href="$2" class="url" title="$3"><span class="fn nickname mention">$3</span></a></span>',
1007 } elseif (!$simplehtml) {
1008 $Text = preg_replace("/([@!])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1009 '$1<a href="$2" class="userinfo mention" title="$3">$3</a>',
1013 // Bookmarks in red - will be converted to bookmarks in friendica
1014 $Text = preg_replace("/#\^\[url\]([$URLSearchString]*)\[\/url\]/ism", '[bookmark=$1]$1[/bookmark]', $Text);
1015 $Text = preg_replace("/#\^\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '[bookmark=$1]$2[/bookmark]', $Text);
1016 $Text = preg_replace("/#\[url\=[$URLSearchString]*\]\^\[\/url\]\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/i",
1017 "[bookmark=$1]$2[/bookmark]", $Text);
1019 if (in_array($simplehtml, [2, 6, 7, 8, 9])) {
1020 $Text = preg_replace_callback("/([^#@!])\[url\=([^\]]*)\](.*?)\[\/url\]/ism", "bb_expand_links", $Text);
1021 //$Text = preg_replace("/[^#@!]\[url\=([^\]]*)\](.*?)\[\/url\]/ism", ' $2 [url]$1[/url]', $Text);
1022 $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", ' $2 [url]$1[/url]',$Text);
1025 if ($simplehtml == 5) {
1026 $Text = preg_replace("/[^#@!]\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '[url]$1[/url]', $Text);
1029 // Perform URL Search
1031 $Text = preg_replace_callback("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $tryoembed_callback, $Text);
1034 if ($simplehtml == 5) {
1035 $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", '[url]$1[/url]', $Text);
1037 $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", '[url=$1]$2[/url]', $Text);
1040 // Handle Diaspora posts
1041 $Text = preg_replace_callback("&\[url=/posts/([^\[\]]*)\](.*)\[\/url\]&Usi", 'bb_DiasporaLinks', $Text);
1043 // Server independent link to posts and comments
1044 // See issue: https://github.com/diaspora/diaspora_federation/issues/75
1045 $expression = "=diaspora://.*?/post/([0-9A-Za-z\-_@.:]{15,254}[0-9A-Za-z])=ism";
1046 $Text = preg_replace($expression, System::baseUrl()."/display/$1", $Text);
1048 $Text = preg_replace("/([#])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1049 '$1<a href="' . System::baseUrl() . '/search?tag=$3" class="tag" title="$3">$3</a>', $Text);
1051 $Text = preg_replace("/\[url\=([$URLSearchString]*)\]#(.*?)\[\/url\]/ism",
1052 '#<a href="' . System::baseUrl() . '/search?tag=$2" class="tag" title="$2">$2</a>', $Text);
1054 $Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$1</a>', $Text);
1055 $Text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
1056 //$Text = preg_replace("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
1058 // Red compatibility, though the link can't be authenticated on Friendica
1059 $Text = preg_replace("/\[zrl\=([$URLSearchString]*)\](.*?)\[\/zrl\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
1062 // we may need to restrict this further if it picks up too many strays
1063 // link acct:user@host to a webfinger profile redirector
1065 $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="' . System::baseUrl() . '/acctlink?addr=$1@$2" target="extlink">acct:$1@$2</a>', $Text);
1067 // Perform MAIL Search
1068 $Text = preg_replace("/\[mail\]([$MAILSearchString]*)\[\/mail\]/", '<a href="mailto:$1">$1</a>', $Text);
1069 $Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '<a href="mailto:$1">$2</a>', $Text);
1071 // leave open the posibility of [map=something]
1072 // this is replaced in prepare_body() which has knowledge of the item location
1074 if (strpos($Text, '[/map]') !== false) {
1075 $Text = preg_replace_callback("/\[map\](.*?)\[\/map\]/ism", 'bb_map_location', $Text);
1077 if (strpos($Text, '[map=') !== false) {
1078 $Text = preg_replace_callback("/\[map=(.*?)\]/ism", 'bb_map_coords', $Text);
1080 if (strpos($Text, '[map]') !== false) {
1081 $Text = preg_replace("/\[map\]/", '<div class="map"></div>', $Text);
1084 // Check for headers
1085 $Text = preg_replace("(\[h1\](.*?)\[\/h1\])ism", '<h1>$1</h1>', $Text);
1086 $Text = preg_replace("(\[h2\](.*?)\[\/h2\])ism", '<h2>$1</h2>', $Text);
1087 $Text = preg_replace("(\[h3\](.*?)\[\/h3\])ism", '<h3>$1</h3>', $Text);
1088 $Text = preg_replace("(\[h4\](.*?)\[\/h4\])ism", '<h4>$1</h4>', $Text);
1089 $Text = preg_replace("(\[h5\](.*?)\[\/h5\])ism", '<h5>$1</h5>', $Text);
1090 $Text = preg_replace("(\[h6\](.*?)\[\/h6\])ism", '<h6>$1</h6>', $Text);
1092 // Check for paragraph
1093 $Text = preg_replace("(\[p\](.*?)\[\/p\])ism", '<p>$1</p>', $Text);
1095 // Check for bold text
1096 $Text = preg_replace("(\[b\](.*?)\[\/b\])ism", '<strong>$1</strong>', $Text);
1098 // Check for Italics text
1099 $Text = preg_replace("(\[i\](.*?)\[\/i\])ism", '<em>$1</em>', $Text);
1101 // Check for Underline text
1102 $Text = preg_replace("(\[u\](.*?)\[\/u\])ism", '<u>$1</u>', $Text);
1104 // Check for strike-through text
1105 $Text = preg_replace("(\[s\](.*?)\[\/s\])ism", '<strike>$1</strike>', $Text);
1107 // Check for over-line text
1108 $Text = preg_replace("(\[o\](.*?)\[\/o\])ism", '<span class="overline">$1</span>', $Text);
1110 // Check for colored text
1111 $Text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])ism", "<span style=\"color: $1;\">$2</span>", $Text);
1113 // Check for sized text
1114 // [size=50] --> font-size: 50px (with the unit).
1115 $Text = preg_replace("(\[size=(\d*?)\](.*?)\[\/size\])ism", "<span style=\"font-size: $1px; line-height: initial;\">$2</span>", $Text);
1116 $Text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])ism", "<span style=\"font-size: $1; line-height: initial;\">$2</span>", $Text);
1118 // Check for centered text
1119 $Text = preg_replace("(\[center\](.*?)\[\/center\])ism", "<div style=\"text-align:center;\">$1</div>", $Text);
1121 // Check for list text
1122 $Text = str_replace("[*]", "<li>", $Text);
1124 // Check for style sheet commands
1125 $Text = preg_replace_callback("(\[style=(.*?)\](.*?)\[\/style\])ism", "bb_cleanstyle", $Text);
1127 // Check for CSS classes
1128 $Text = preg_replace_callback("(\[class=(.*?)\](.*?)\[\/class\])ism", "bb_cleanclass", $Text);
1130 // handle nested lists
1133 while ((((strpos($Text, "[/list]") !== false) && (strpos($Text, "[list") !== false)) ||
1134 ((strpos($Text, "[/ol]") !== false) && (strpos($Text, "[ol]") !== false)) ||
1135 ((strpos($Text, "[/ul]") !== false) && (strpos($Text, "[ul]") !== false)) ||
1136 ((strpos($Text, "[/li]") !== false) && (strpos($Text, "[li]") !== false))) && (++$endlessloop < 20)) {
1137 $Text = preg_replace("/\[list\](.*?)\[\/list\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>', $Text);
1138 $Text = preg_replace("/\[list=\](.*?)\[\/list\]/ism", '<ul class="listnone" style="list-style-type: none;">$1</ul>', $Text);
1139 $Text = preg_replace("/\[list=1\](.*?)\[\/list\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>', $Text);
1140 $Text = preg_replace("/\[list=((?-i)i)\](.*?)\[\/list\]/ism", '<ul class="listlowerroman" style="list-style-type: lower-roman;">$2</ul>', $Text);
1141 $Text = preg_replace("/\[list=((?-i)I)\](.*?)\[\/list\]/ism", '<ul class="listupperroman" style="list-style-type: upper-roman;">$2</ul>', $Text);
1142 $Text = preg_replace("/\[list=((?-i)a)\](.*?)\[\/list\]/ism", '<ul class="listloweralpha" style="list-style-type: lower-alpha;">$2</ul>', $Text);
1143 $Text = preg_replace("/\[list=((?-i)A)\](.*?)\[\/list\]/ism", '<ul class="listupperalpha" style="list-style-type: upper-alpha;">$2</ul>', $Text);
1144 $Text = preg_replace("/\[ul\](.*?)\[\/ul\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>', $Text);
1145 $Text = preg_replace("/\[ol\](.*?)\[\/ol\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>', $Text);
1146 $Text = preg_replace("/\[li\](.*?)\[\/li\]/ism", '<li>$1</li>', $Text);
1149 $Text = preg_replace("/\[th\](.*?)\[\/th\]/sm", '<th>$1</th>', $Text);
1150 $Text = preg_replace("/\[td\](.*?)\[\/td\]/sm", '<td>$1</td>', $Text);
1151 $Text = preg_replace("/\[tr\](.*?)\[\/tr\]/sm", '<tr>$1</tr>', $Text);
1152 $Text = preg_replace("/\[table\](.*?)\[\/table\]/sm", '<table>$1</table>', $Text);
1154 $Text = preg_replace("/\[table border=1\](.*?)\[\/table\]/sm", '<table border="1" >$1</table>', $Text);
1155 $Text = preg_replace("/\[table border=0\](.*?)\[\/table\]/sm", '<table border="0" >$1</table>', $Text);
1157 $Text = str_replace('[hr]', '<hr />', $Text);
1159 // This is actually executed in prepare_body()
1161 $Text = str_replace('[nosmile]', '', $Text);
1163 // Check for font change text
1164 $Text = preg_replace("/\[font=(.*?)\](.*?)\[\/font\]/sm", "<span style=\"font-family: $1;\">$2</span>", $Text);
1166 // Declare the format for [code] layout
1168 // $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/ism", 'stripcode_br_cb', $Text);
1170 $CodeLayout = '<code>$1</code>';
1171 // Check for [code] text
1172 $Text = preg_replace("/\[code\](.*?)\[\/code\]/ism", "$CodeLayout", $Text);
1174 // Declare the format for [spoiler] layout
1175 $SpoilerLayout = '<blockquote class="spoiler">$1</blockquote>';
1177 // Check for [spoiler] text
1178 // handle nested quotes
1180 while ((strpos($Text, "[/spoiler]") !== false) && (strpos($Text, "[spoiler]") !== false) && (++$endlessloop < 20)) {
1181 $Text = preg_replace("/\[spoiler\](.*?)\[\/spoiler\]/ism", "$SpoilerLayout", $Text);
1184 // Check for [spoiler=Author] text
1186 $t_wrote = L10n::t('$1 wrote:');
1188 // handle nested quotes
1190 while ((strpos($Text, "[/spoiler]")!== false) && (strpos($Text, "[spoiler=") !== false) && (++$endlessloop < 20)) {
1191 $Text = preg_replace("/\[spoiler=[\"\']*(.*?)[\"\']*\](.*?)\[\/spoiler\]/ism",
1192 "<br /><strong class=".'"spoiler"'.">" . $t_wrote . "</strong><blockquote class=".'"spoiler"'.">$2</blockquote>",
1196 // Declare the format for [quote] layout
1197 $QuoteLayout = '<blockquote>$1</blockquote>';
1199 // Check for [quote] text
1200 // handle nested quotes
1202 while ((strpos($Text, "[/quote]") !== false) && (strpos($Text, "[quote]") !== false) && (++$endlessloop < 20)) {
1203 $Text = preg_replace("/\[quote\](.*?)\[\/quote\]/ism", "$QuoteLayout", $Text);
1206 // Check for [quote=Author] text
1208 $t_wrote = L10n::t('$1 wrote:');
1210 // handle nested quotes
1212 while ((strpos($Text, "[/quote]")!== false) && (strpos($Text, "[quote=") !== false) && (++$endlessloop < 20)) {
1213 $Text = preg_replace("/\[quote=[\"\']*(.*?)[\"\']*\](.*?)\[\/quote\]/ism",
1214 "<br /><strong class=".'"author"'.">" . $t_wrote . "</strong><blockquote>$2</blockquote>",
1219 // [img=widthxheight]image source[/img]
1220 $Text = preg_replace_callback("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", 'bb_PictureCacheExt', $Text);
1222 $Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="width: $1px;" >', $Text);
1223 $Text = preg_replace("/\[zmg\=([0-9]*)x([0-9]*)\](.*?)\[\/zmg\]/ism", '<img class="zrl" src="$3" style="width: $1px;" >', $Text);
1226 // [img]pathtoimage[/img]
1227 $Text = preg_replace_callback("/\[img\](.*?)\[\/img\]/ism", 'bb_PictureCache', $Text);
1229 $Text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '<img src="$1" alt="' . L10n::t('Image/photo') . '" />', $Text);
1230 $Text = preg_replace("/\[zmg\](.*?)\[\/zmg\]/ism", '<img src="$1" alt="' . L10n::t('Image/photo') . '" />', $Text);
1233 $Text = preg_replace_callback("/(.*?)\[share(.*?)\](.*?)\[\/share\]/ism",
1234 function ($match) use ($simplehtml) {
1235 return bb_ShareAttributes($match, $simplehtml);
1238 $Text = preg_replace("/\[crypt\](.*?)\[\/crypt\]/ism", '<br/><img src="' .System::baseUrl() . '/images/lock_icon.gif" alt="' . L10n::t('Encrypted content') . '" title="' . L10n::t('Encrypted content') . '" /><br />', $Text);
1239 $Text = preg_replace("/\[crypt(.*?)\](.*?)\[\/crypt\]/ism", '<br/><img src="' .System::baseUrl() . '/images/lock_icon.gif" alt="' . L10n::t('Encrypted content') . '" title="' . '$1' . ' ' . L10n::t('Encrypted content') . '" /><br />', $Text);
1240 //$Text = preg_replace("/\[crypt=(.*?)\](.*?)\[\/crypt\]/ism", '<br/><img src="' .System::baseUrl() . '/images/lock_icon.gif" alt="' . L10n::t('Encrypted content') . '" title="' . '$1' . ' ' . L10n::t('Encrypted content') . '" /><br />', $Text);
1244 $Text = preg_replace("/\[video\](.*?\.(ogg|ogv|oga|ogm|webm|mp4))\[\/video\]/ism", '<video src="$1" controls="controls" width="' . $a->videowidth . '" height="' . $a->videoheight . '" loop="true"><a href="$1">$1</a></video>', $Text);
1245 $Text = preg_replace("/\[audio\](.*?\.(ogg|ogv|oga|ogm|webm|mp4|mp3))\[\/audio\]/ism", '<audio src="$1" controls="controls"><a href="$1">$1</a></audio>', $Text);
1247 $Text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", $tryoembed_callback, $Text);
1248 $Text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", $tryoembed_callback, $Text);
1250 $Text = preg_replace("/\[video\](.*?)\[\/video\]/",
1251 '<a href="$1" target="_blank">$1</a>', $Text);
1252 $Text = preg_replace("/\[audio\](.*?)\[\/audio\]/",
1253 '<a href="$1" target="_blank">$1</a>', $Text);
1256 // html5 video and audio
1260 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<iframe src="$1" width="' . $a->videowidth . '" height="' . $a->videoheight . '"><a href="$1">$1</a></iframe>', $Text);
1262 $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<a href="$1">$1</a>', $Text);
1265 // Youtube extensions
1267 $Text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", $tryoembed_callback, $Text);
1268 $Text = preg_replace_callback("/\[youtube\](www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", $tryoembed_callback, $Text);
1269 $Text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism", $tryoembed_callback, $Text);
1272 $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism", '[youtube]$1[/youtube]', $Text);
1273 $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism", '[youtube]$1[/youtube]', $Text);
1274 $Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism", '[youtube]$1[/youtube]', $Text);
1277 $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism", '<iframe width="' . $a->videowidth . '" height="' . $a->videoheight . '" src="https://www.youtube.com/embed/$1" frameborder="0" ></iframe>', $Text);
1279 $Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism",
1280 '<a href="https://www.youtube.com/watch?v=$1" target="_blank">https://www.youtube.com/watch?v=$1</a>', $Text);
1284 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism", $tryoembed_callback, $Text);
1285 $Text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism", $tryoembed_callback, $Text);
1288 $Text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism", '[vimeo]$1[/vimeo]', $Text);
1289 $Text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism", '[vimeo]$1[/vimeo]', $Text);
1292 $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", '<iframe width="' . $a->videowidth . '" height="' . $a->videoheight . '" src="https://player.vimeo.com/video/$1" frameborder="0" ></iframe>', $Text);
1294 $Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism",
1295 '<a href="https://vimeo.com/$1" target="_blank">https://vimeo.com/$1</a>', $Text);
1298 // $Text = preg_replace("/\[youtube\](.*?)\[\/youtube\]/", '<object width="425" height="350" type="application/x-shockwave-flash" data="http://www.youtube.com/v/$1" ><param name="movie" value="http://www.youtube.com/v/$1"></param><!--[if IE]><embed src="http://www.youtube.com/v/$1" type="application/x-shockwave-flash" width="425" height="350" /><![endif]--></object>', $Text);
1301 $Text = OEmbed::BBCode2HTML($Text);
1303 // Avoid triple linefeeds through oembed
1304 $Text = str_replace("<br style='clear:left'></span><br /><br />", "<br style='clear:left'></span><br />", $Text);
1306 // If we found an event earlier, strip out all the event code and replace with a reformatted version.
1307 // Replace the event-start section with the entire formatted event. The other bbcode is stripped.
1308 // Summary (e.g. title) is required, earlier revisions only required description (in addition to
1309 // start which is always required). Allow desc with a missing summary for compatibility.
1311 if ((x($ev, 'desc') || x($ev, 'summary')) && x($ev, 'start')) {
1312 $sub = format_event_html($ev, $simplehtml);
1314 $Text = preg_replace("/\[event\-summary\](.*?)\[\/event\-summary\]/ism", '', $Text);
1315 $Text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/ism", '', $Text);
1316 $Text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/ism", $sub, $Text);
1317 $Text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/ism", '', $Text);
1318 $Text = preg_replace("/\[event\-location\](.*?)\[\/event\-location\]/ism", '', $Text);
1319 $Text = preg_replace("/\[event\-adjust\](.*?)\[\/event\-adjust\]/ism", '', $Text);
1320 $Text = preg_replace("/\[event\-id\](.*?)\[\/event\-id\]/ism", '', $Text);
1323 // Replace non graphical smilies for external posts
1325 $Text = Smilies::replace($Text, false, true);
1328 // Replace inline code blocks
1329 $Text = preg_replace_callback("|(?!<br[^>]*>)<code>([^<]*)</code>(?!<br[^>]*>)|ism",
1330 function ($match) use ($simplehtml) {
1331 $return = '<key>' . $match[1] . '</key>';
1332 // Use <code> for Diaspora inline code blocks
1333 if ($simplehtml === 3) {
1334 $return = '<code>' . $match[1] . '</code>';
1340 // Unhide all [noparse] contained bbtags unspacefying them
1341 // and triming the [noparse] tag.
1343 $Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_unspacefy_and_trim', $Text);
1344 $Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_unspacefy_and_trim', $Text);
1345 $Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_unspacefy_and_trim', $Text);
1348 $Text = preg_replace('/\[\&\;([#a-z0-9]+)\;\]/', '&$1;', $Text);
1349 $Text = preg_replace('/\&\#039\;/', '\'', $Text);
1350 $Text = preg_replace('/\"\;/', '"', $Text);
1352 // fix any escaped ampersands that may have been converted into links
1353 $Text = preg_replace('/\<([^>]*?)(src|href)=(.*?)\&\;(.*?)\>/ism', '<$1$2=$3&$4>', $Text);
1355 // sanitizes src attributes (http and redir URLs for displaying in a web page, cid used for inline images in emails)
1356 static $allowed_src_protocols = ['http', 'redir', 'cid'];
1357 $Text = preg_replace('#<([^>]*?)(src)="(?!' . implode('|', $allowed_src_protocols) . ')(.*?)"(.*?)>#ism',
1358 '<$1$2=""$4 data-original-src="$3" class="invalid-src" title="' . L10n::t('Invalid source protocol') . '">', $Text);
1360 // sanitize href attributes (only whitelisted protocols URLs)
1361 // default value for backward compatibility
1362 $allowed_link_protocols = Config::get('system', 'allowed_link_protocols', ['ftp', 'mailto', 'gopher', 'cid']);
1364 // Always allowed protocol even if config isn't set or not including it
1365 $allowed_link_protocols[] = 'http';
1366 $allowed_link_protocols[] = 'redir/';
1368 $regex = '#<([^>]*?)(href)="(?!' . implode('|', $allowed_link_protocols) . ')(.*?)"(.*?)>#ism';
1369 $Text = preg_replace($regex, '<$1$2="javascript:void(0)"$4 data-original-href="$3" class="invalid-href" title="' . L10n::t('Invalid link protocol') . '">', $Text);
1372 $Text = bb_replace_images($Text, $saved_image);
1375 // Clean up the HTML by loading and saving the HTML with the DOM.
1376 // Bad structured html can break a whole page.
1377 // For performance reasons do it only with ativated item cache or at export.
1378 if (!$tryoembed || (get_itemcachepath() != "")) {
1379 $doc = new DOMDocument();
1380 $doc->preserveWhiteSpace = false;
1382 $Text = mb_convert_encoding($Text, 'HTML-ENTITIES', "UTF-8");
1384 $doctype = '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">';
1385 $encoding = '<?xml encoding="UTF-8">';
1386 @$doc->loadHTML($encoding.$doctype."<html><body>".$Text."</body></html>");
1387 $doc->encoding = 'UTF-8';
1388 $Text = $doc->saveHTML();
1389 $Text = str_replace(["<html><body>", "</body></html>", $doctype, $encoding], ["", "", "", ""], $Text);
1391 $Text = str_replace('<br></li>', '</li>', $Text);
1393 //$Text = mb_convert_encoding($Text, "UTF-8", 'HTML-ENTITIES');
1396 // Clean up some useless linebreaks in lists
1397 //$Text = str_replace('<br /><ul', '<ul ', $Text);
1398 //$Text = str_replace('</ul><br />', '</ul>', $Text);
1399 //$Text = str_replace('</li><br />', '</li>', $Text);
1400 //$Text = str_replace('<br /><li>', '<li>', $Text);
1401 //$Text = str_replace('<br /><ul', '<ul ', $Text);
1403 Addon::callHooks('bbcode', $Text);
1409 * @brief Removes the "abstract" element from the text
1411 * @param string $text The text with BBCode
1412 * @return string The same text - but without "abstract" element
1414 function remove_abstract($text) {
1415 $text = preg_replace("/[\s|\n]*\[abstract\].*?\[\/abstract\][\s|\n]*/ism", '', $text);
1416 $text = preg_replace("/[\s|\n]*\[abstract=.*?\].*?\[\/abstract][\s|\n]*/ism", '', $text);
1422 * @brief Returns the value of the "abstract" element
1424 * @param string $text The text that maybe contains the element
1425 * @param string $addon The addon for which the abstract is meant for
1426 * @return string The abstract
1428 function fetch_abstract($text, $addon = "") {
1431 $addon = strtolower($addon);
1433 if (preg_match_all("/\[abstract=(.*?)\](.*?)\[\/abstract\]/ism",$text, $results, PREG_SET_ORDER))
1434 foreach ($results AS $result)
1435 $abstracts[strtolower($result[1])] = $result[2];
1437 if (isset($abstracts[$addon]))
1438 $abstract = $abstracts[$addon];
1440 if ($abstract == "")
1441 if (preg_match("/\[abstract\](.*?)\[\/abstract\]/ism",$text, $result))
1442 $abstract = $result[1];