*/
namespace Friendica\Content\Text;
-use Friendica\App;
+use DOMDocument;
+use DomXPath;
+use Exception;
+use Friendica\Content\OEmbed;
+use Friendica\Content\Smilies;
use Friendica\Content\Text\Plaintext;
+use Friendica\Core\Addon;
+use Friendica\Core\Cache;
use Friendica\Core\Config;
use Friendica\Core\L10n;
+use Friendica\Core\Protocol;
use Friendica\Core\PConfig;
use Friendica\Core\System;
+use Friendica\Model\Contact;
use Friendica\Object\Image;
-use Friendica\Util\ParseUrl;
+use Friendica\Util\Map;
use Friendica\Util\Network;
+use Friendica\Util\ParseUrl;
-require_once "include/bbcode.php";
+require_once "include/event.php";
require_once "include/html2plain.php";
+require_once "include/html2bbcode.php";
+require_once "mod/proxy.php";
class BBCode
{
}
if ($title != "") {
- $title = bbcode(html_entity_decode($title, ENT_QUOTES, 'UTF-8'), false, false, true);
+ $title = BBCode::convert(html_entity_decode($title, ENT_QUOTES, 'UTF-8'), false, true);
$title = html_entity_decode($title, ENT_QUOTES, 'UTF-8');
$title = str_replace(["[", "]"], ["[", "]"], $title);
$data["title"] = $title;
$body = preg_replace("/([^\]\='".'"'."]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1[url]$2[/url]', $body);
// Remove the abstract
- $body = remove_abstract($body);
+ $body = self::stripAbstract($body);
// At first look at data that is attached via "type-..." stuff
// This will hopefully replaced with a dedicated bbcode later
// Fetch the abstract from the given target network
if ($target_network != "") {
- $default_abstract = fetch_abstract($b["body"]);
- $abstract = fetch_abstract($b["body"], $target_network);
+ $default_abstract = self::getAbstract($b["body"]);
+ $abstract = self::getAbstract($b["body"], $target_network);
// If we post to a network with no limit we only fetch
// an abstract exactly for this network
} else {// Try to guess the correct target network
switch ($htmlmode) {
case 8:
- $abstract = fetch_abstract($b["body"], NETWORK_TWITTER);
+ $abstract = self::getAbstract($b["body"], NETWORK_TWITTER);
break;
case 7:
- $abstract = fetch_abstract($b["body"], NETWORK_STATUSNET);
+ $abstract = self::getAbstract($b["body"], NETWORK_STATUSNET);
break;
case 6:
- $abstract = fetch_abstract($b["body"], NETWORK_APPNET);
+ $abstract = self::getAbstract($b["body"], NETWORK_APPNET);
break;
default: // We don't know the exact target.
// We fetch an abstract since there is a posting limit.
if ($limit > 0) {
- $abstract = fetch_abstract($b["body"]);
+ $abstract = self::getAbstract($b["body"]);
}
}
}
}
}
- $html = bbcode($post["text"].$post["after"], false, false, $htmlmode);
+ $html = BBCode::convert($post["text"].$post["after"], false, $htmlmode);
$msg = html2plain($html, 0, true);
$msg = trim(html_entity_decode($msg, ENT_QUOTES, 'UTF-8'));
return $body;
}
}
+
+ /**
+ * Processes [attachment] tags
+ *
+ * Note: Can produce a [bookmark] tag in the returned string
+ *
+ * @brief Processes [attachment] tags
+ * @param string $return
+ * @param bool|int $simplehtml
+ * @param bool $tryoembed
+ * @return string
+ */
+ private static function convertAttachment($return, $simplehtml = false, $tryoembed = true)
+ {
+ $data = self::getAttachmentData($return);
+ if (!$data) {
+ return $return;
+ }
+
+ if (isset($data["title"])) {
+ $data["title"] = strip_tags($data["title"]);
+ $data["title"] = str_replace(["http://", "https://"], "", $data["title"]);
+ }
+
+ if (((strpos($data["text"], "[img=") !== false) || (strpos($data["text"], "[img]") !== false) || Config::get('system', 'always_show_preview')) && ($data["image"] != "")) {
+ $data["preview"] = $data["image"];
+ $data["image"] = "";
+ }
+
+ $return = '';
+ if ($simplehtml == 7) {
+ $return = self::convertUrlForMastodon($data["url"]);
+ } elseif (($simplehtml != 4) && ($simplehtml != 0)) {
+ $return = sprintf('<a href="%s" target="_blank">%s</a><br>', $data["url"], $data["title"]);
+ } else {
+ try {
+ if ($tryoembed && OEmbed::isAllowedURL($data['url'])) {
+ $return = OEmbed::getHTML($data['url'], $data['title']);
+ } else {
+ throw new Exception('OEmbed is disabled for this attachment.');
+ }
+ } catch (Exception $e) {
+ if ($simplehtml != 4) {
+ $return = sprintf('<div class="type-%s">', $data["type"]);
+ }
+
+ if ($data["image"] != "") {
+ $return .= sprintf('<a href="%s" target="_blank"><img src="%s" alt="" title="%s" class="attachment-image" /></a><br />', $data["url"], proxy_url($data["image"]), $data["title"]);
+ } elseif ($data["preview"] != "") {
+ $return .= sprintf('<a href="%s" target="_blank"><img src="%s" alt="" title="%s" class="attachment-preview" /></a><br />', $data["url"], proxy_url($data["preview"]), $data["title"]);
+ }
+
+ if (($data["type"] == "photo") && ($data["url"] != "") && ($data["image"] != "")) {
+ $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"]);
+ } else {
+ $return .= sprintf('<h4><a href="%s">%s</a></h4>', $data['url'], $data['title']);
+ }
+
+ if ($data["description"] != "" && $data["description"] != $data["title"]) {
+ // Sanitize the HTML by converting it to BBCode
+ $bbcode = html2bbcode($data["description"]);
+ $return .= sprintf('<blockquote>%s</blockquote>', trim(self::convert($bbcode)));
+ }
+ if ($data["type"] == "link") {
+ $return .= sprintf('<sup><a href="%s">%s</a></sup>', $data['url'], parse_url($data['url'], PHP_URL_HOST));
+ }
+
+ if ($simplehtml != 4) {
+ $return .= '</div>';
+ }
+ }
+ }
+
+ return trim($data["text"] . ' ' . $return . ' ' . $data["after"]);
+ }
+
+ public static function removeShareInformation($Text, $plaintext = false, $nolink = false)
+ {
+ $data = self::getAttachmentData($Text);
+
+ if (!$data) {
+ return $Text;
+ } elseif ($nolink) {
+ return $data["text"] . $data["after"];
+ }
+
+ $title = htmlentities($data["title"], ENT_QUOTES, 'UTF-8', false);
+ $text = htmlentities($data["text"], ENT_QUOTES, 'UTF-8', false);
+ if ($plaintext || (($title != "") && strstr($text, $title))) {
+ $data["title"] = $data["url"];
+ } elseif (($text != "") && strstr($title, $text)) {
+ $data["text"] = $data["title"];
+ $data["title"] = $data["url"];
+ }
+
+ if (($data["text"] == "") && ($data["title"] != "") && ($data["url"] == "")) {
+ return $data["title"] . $data["after"];
+ }
+
+ // If the link already is included in the post, don't add it again
+ if (($data["url"] != "") && strpos($data["text"], $data["url"])) {
+ return $data["text"] . $data["after"];
+ }
+
+ $text = $data["text"];
+
+ if (($data["url"] != "") && ($data["title"] != "")) {
+ $text .= "\n[url=" . $data["url"] . "]" . $data["title"] . "[/url]";
+ } elseif (($data["url"] != "")) {
+ $text .= "\n[url]" . $data["url"] . "[/url]";
+ }
+
+ return $text . "\n" . $data["after"];
+ }
+
+ private static function cleanCss($input)
+ {
+ $cleaned = "";
+
+ $input = strtolower($input);
+
+ for ($i = 0; $i < strlen($input); $i++) {
+ $char = substr($input, $i, 1);
+
+ if (($char >= "a") && ($char <= "z")) {
+ $cleaned .= $char;
+ }
+
+ if (!(strpos(" #;:0123456789-_.%", $char) === false)) {
+ $cleaned .= $char;
+ }
+ }
+
+ return $cleaned;
+ }
+
+ /**
+ * Converts [url] BBCodes in a format that looks fine on Mastodon. (callback function)
+ *
+ * @brief Converts [url] BBCodes in a format that looks fine on Mastodon. (callback function)
+ * @param array $match Array with the matching values
+ * @return string reformatted link including HTML codes
+ */
+ private static function convertUrlForMastodonCallback($match)
+ {
+ $url = $match[1];
+
+ if (isset($match[2]) && ($match[1] != $match[2])) {
+ return $match[0];
+ }
+
+ $parts = parse_url($url);
+ if (!isset($parts['scheme'])) {
+ return $match[0];
+ }
+
+ return self::convertUrlForMastodon($url);
+ }
+
+ /**
+ * @brief Converts [url] BBCodes in a format that looks fine on Mastodon and GNU Social.
+ * @param string $url URL that is about to be reformatted
+ * @return string reformatted link including HTML codes
+ */
+ private static function convertUrlForMastodon($url)
+ {
+ $parts = parse_url($url);
+ $scheme = $parts['scheme'] . '://';
+ $styled_url = str_replace($scheme, '', $url);
+
+ $html = '<a href="%s" class="attachment" rel="nofollow noopener" target="_blank">' .
+ '<span class="invisible">%s</span>';
+
+ if (strlen($styled_url) > 30) {
+ $html .= '<span class="ellipsis">%s</span>' .
+ '<span class="invisible">%s</span></a>';
+
+ $ellipsis = substr($styled_url, 0, 30);
+ $rest = substr($styled_url, 30);
+ return sprintf($html, $url, $scheme, $ellipsis, $rest);
+ } else {
+ $html .= '%s</a>';
+ return sprintf($html, $url, $scheme, $styled_url);
+ }
+ }
+
+ /**
+ * @brief Shortens [url] BBCodes in a format that looks less ugly than the full address. (callback function)
+ * @param array $match Array with the matching values
+ * @return string reformatted link including HTML codes
+ */
+ private static function shortenVisibleUrlCallback($match)
+ {
+ $url = $match[1];
+
+ if (isset($match[2]) && ($match[1] != $match[2])) {
+ return $match[0];
+ }
+
+ $parts = parse_url($url);
+ if (!isset($parts['scheme'])) {
+ return $match[0];
+ }
+
+ return self::shortenVisibleUrl($url);
+ }
+
+ /**
+ * @brief Shortens [url] BBCodes in a format that looks less ugly than the full address.
+ * @param string $url URL that is about to be reformatted
+ * @return string reformatted link including HTML codes
+ */
+ private static function shortenVisibleUrl($url)
+ {
+ $parts = parse_url($url);
+ $scheme = $parts['scheme'] . '://';
+ $styled_url = str_replace($scheme, '', $url);
+
+// Currently deactivated, due to preview problems inside of Diaspora
+// if (strlen($styled_url) > 30) {
+// $styled_url = substr($styled_url, 0, 30) . "…";
+// }
+
+ $html = '<a href="%s" target="_blank">%s</a>';
+
+ return sprintf($html, $url, $styled_url);
+ }
+
+ /*
+ * [noparse][i]italic[/i][/noparse] turns into
+ * [noparse][ i ]italic[ /i ][/noparse],
+ * to hide them from parser.
+ */
+ private static function escapeNoparseCallback($match)
+ {
+ $whole_match = $match[0];
+ $captured = $match[1];
+ $spacefied = preg_replace("/\[(.*?)\]/", "[ $1 ]", $captured);
+ $new_str = str_replace($captured, $spacefied, $whole_match);
+ return $new_str;
+ }
+
+ /*
+ * The previously spacefied [noparse][ i ]italic[ /i ][/noparse],
+ * now turns back and the [noparse] tags are trimed
+ * returning [i]italic[/i]
+ */
+ private static function unescapeNoparseCallback($match)
+ {
+ $captured = $match[1];
+ $unspacefied = preg_replace("/\[ (.*?)\ ]/", "[$1]", $captured);
+ return $unspacefied;
+ }
+
+ /**
+ * Returns the bracket character positions of a set of opening and closing BBCode tags, optionally skipping first
+ * occurrences
+ *
+ * @param string $text Text to search
+ * @param string $name Tag name
+ * @param int $occurrences Number of first occurrences to skip
+ * @return boolean|array
+ */
+ public static function getTagPosition($text, $name, $occurrences = 0)
+ {
+ if ($occurrences < 0) {
+ $occurrences = 0;
+ }
+
+ $start_open = -1;
+ for ($i = 0; $i <= $occurrences; $i++) {
+ if ($start_open !== false) {
+ $start_open = strpos($text, '[' . $name, $start_open + 1); // allow [name= type tags
+ }
+ }
+
+ if ($start_open === false) {
+ return false;
+ }
+
+ $start_equal = strpos($text, '=', $start_open);
+ $start_close = strpos($text, ']', $start_open);
+
+ if ($start_close === false) {
+ return false;
+ }
+
+ $start_close++;
+
+ $end_open = strpos($text, '[/' . $name . ']', $start_close);
+
+ if ($end_open === false) {
+ return false;
+ }
+
+ $res = [
+ 'start' => [
+ 'open' => $start_open,
+ 'close' => $start_close
+ ],
+ 'end' => [
+ 'open' => $end_open,
+ 'close' => $end_open + strlen('[/' . $name . ']')
+ ],
+ ];
+
+ if ($start_equal !== false) {
+ $res['start']['equal'] = $start_equal + 1;
+ }
+
+ return $res;
+ }
+
+ /**
+ * Performs a preg_replace within the boundaries of all named BBCode tags in a text
+ *
+ * @param type $pattern Preg pattern string
+ * @param type $replace Preg replace string
+ * @param type $name BBCode tag name
+ * @param type $text Text to search
+ * @return string
+ */
+ public static function pregReplaceInTag($pattern, $replace, $name, $text)
+ {
+ $occurrences = 0;
+ $pos = self::getTagPosition($text, $name, $occurrences);
+ while ($pos !== false && $occurrences++ < 1000) {
+ $start = substr($text, 0, $pos['start']['open']);
+ $subject = substr($text, $pos['start']['open'], $pos['end']['close'] - $pos['start']['open']);
+ $end = substr($text, $pos['end']['close']);
+ if ($end === false) {
+ $end = '';
+ }
+
+ $subject = preg_replace($pattern, $replace, $subject);
+ $text = $start . $subject . $end;
+
+ $pos = self::getTagPosition($text, $name, $occurrences);
+ }
+
+ return $text;
+ }
+
+ private static function extractImagesFromItemBody($body)
+ {
+ $saved_image = [];
+ $orig_body = $body;
+ $new_body = '';
+
+ $cnt = 0;
+ $img_start = strpos($orig_body, '[img');
+ $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
+ $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
+ while (($img_st_close !== false) && ($img_end !== false)) {
+ $img_st_close++; // make it point to AFTER the closing bracket
+ $img_end += $img_start;
+
+ if (!strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
+ // This is an embedded image
+ $saved_image[$cnt] = substr($orig_body, $img_start + $img_st_close, $img_end - ($img_start + $img_st_close));
+ $new_body = $new_body . substr($orig_body, 0, $img_start) . '[$#saved_image' . $cnt . '#$]';
+
+ $cnt++;
+ } else {
+ $new_body = $new_body . substr($orig_body, 0, $img_end + strlen('[/img]'));
+ }
+
+ $orig_body = substr($orig_body, $img_end + strlen('[/img]'));
+
+ if ($orig_body === false) {
+ // in case the body ends on a closing image tag
+ $orig_body = '';
+ }
+
+ $img_start = strpos($orig_body, '[img');
+ $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
+ $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
+ }
+
+ $new_body = $new_body . $orig_body;
+
+ return ['body' => $new_body, 'images' => $saved_image];
+ }
+
+ private static function interpolateSavedImagesIntoItemBody($body, array $images)
+ {
+ $newbody = $body;
+
+ $cnt = 0;
+ foreach ($images as $image) {
+ // We're depending on the property of 'foreach' (specified on the PHP website) that
+ // it loops over the array starting from the first element and going sequentially
+ // to the last element
+ $newbody = str_replace('[$#saved_image' . $cnt . '#$]',
+ '<img src="' . proxy_url($image) . '" alt="' . L10n::t('Image/photo') . '" />', $newbody);
+ $cnt++;
+ }
+
+ return $newbody;
+ }
+
+ /**
+ * Processes [share] tags
+ *
+ * Note: Can produce a [bookmark] tag in the output
+ *
+ * @brief Processes [share] tags
+ * @param array $share preg_match_callback result array
+ * @param bool|int $simplehtml
+ * @return string
+ */
+ private static function convertShare($share, $simplehtml)
+ {
+ $attributes = $share[2];
+
+ $author = "";
+ preg_match("/author='(.*?)'/ism", $attributes, $matches);
+ if (x($matches, 1)) {
+ $author = html_entity_decode($matches[1], ENT_QUOTES, 'UTF-8');
+ }
+
+ preg_match('/author="(.*?)"/ism', $attributes, $matches);
+ if (x($matches, 1)) {
+ $author = $matches[1];
+ }
+
+ $profile = "";
+ preg_match("/profile='(.*?)'/ism", $attributes, $matches);
+ if (x($matches, 1)) {
+ $profile = $matches[1];
+ }
+
+ preg_match('/profile="(.*?)"/ism', $attributes, $matches);
+ if (x($matches, 1)) {
+ $profile = $matches[1];
+ }
+
+ $avatar = "";
+ preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
+ if (x($matches, 1)) {
+ $avatar = $matches[1];
+ }
+
+ preg_match('/avatar="(.*?)"/ism', $attributes, $matches);
+ if (x($matches, 1)) {
+ $avatar = $matches[1];
+ }
+
+ $link = "";
+ preg_match("/link='(.*?)'/ism", $attributes, $matches);
+ if (x($matches, 1)) {
+ $link = $matches[1];
+ }
+
+ preg_match('/link="(.*?)"/ism', $attributes, $matches);
+ if (x($matches, 1)) {
+ $link = $matches[1];
+ }
+
+ $posted = "";
+
+ preg_match("/posted='(.*?)'/ism", $attributes, $matches);
+ if (x($matches, 1)) {
+ $posted = $matches[1];
+ }
+
+ preg_match('/posted="(.*?)"/ism', $attributes, $matches);
+ if (x($matches, 1)) {
+ $posted = $matches[1];
+ }
+
+ // We only call this so that a previously unknown contact can be added.
+ // This is important for the function "Model\Contact::getDetailsByURL()".
+ // This function then can fetch an entry from the contact table.
+ Contact::getIdForURL($profile, 0, true);
+
+ $data = Contact::getDetailsByURL($profile);
+
+ if (x($data, "name") && x($data, "addr")) {
+ $userid_compact = $data["name"] . " (" . $data["addr"] . ")";
+ } else {
+ $userid_compact = Protocol::getAddrFromProfileUrl($profile, $author);
+ }
+
+ if (x($data, "addr")) {
+ $userid = $data["addr"];
+ } else {
+ $userid = Protocol::formatMention($profile, $author);
+ }
+
+ if (x($data, "name")) {
+ $author = $data["name"];
+ }
+
+ if (x($data, "micro")) {
+ $avatar = $data["micro"];
+ }
+
+ $preshare = trim($share[1]);
+ if ($preshare != "") {
+ $preshare .= "<br />";
+ }
+
+ switch ($simplehtml) {
+ case 1:
+ $text = $preshare . html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8') . ' <a href="' . $profile . '">' . $userid . "</a>: <br />»" . $share[3] . "«";
+ break;
+ case 2:
+ $text = $preshare . html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8') . ' ' . $userid_compact . ": <br />" . $share[3];
+ break;
+ case 3: // Diaspora
+ $headline = '<b>' . html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8') . $userid . ':</b><br />';
+
+ $text = trim($share[1]);
+
+ if ($text != "") {
+ $text .= "<hr />";
+ }
+
+ if (stripos(normalise_link($link), 'http://twitter.com/') === 0) {
+ $text .= '<br /><a href="' . $link . '">' . $link . '</a>';
+ } else {
+ $text .= $headline . '<blockquote>' . trim($share[3]) . "</blockquote><br />";
+
+ if ($link != "") {
+ $text .= '<br /><a href="' . $link . '">[l]</a>';
+ }
+ }
+
+ break;
+ case 4:
+ $headline = '<br /><b>' . html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8');
+ $headline .= L10n::t('<a href="%1$s" target="_blank">%2$s</a> %3$s', $link, $userid, $posted);
+ $headline .= ":</b><br />";
+
+ $text = trim($share[1]);
+
+ if ($text != "") {
+ $text .= "<hr />";
+ }
+
+ $text .= $headline . '<blockquote class="shared_content">' . trim($share[3]) . "</blockquote><br />";
+
+ break;
+ case 5:
+ $text = $preshare . html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8') . ' ' . $userid_compact . ": <br />" . $share[3];
+ break;
+ case 6: // app.net
+ $text = $preshare . ">> @" . $userid_compact . ": <br />" . $share[3];
+ break;
+ case 7: // statusnet/GNU Social
+ $text = $preshare . html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8') . " @" . $userid_compact . ": " . $share[3];
+ break;
+ case 8: // twitter
+ $text = $preshare . "RT @" . $userid_compact . ": " . $share[3];
+ break;
+ case 9: // Google+/Facebook
+ $text = $preshare . html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8') . ' ' . $userid_compact . ": <br />" . $share[3];
+
+ if ($link != "") {
+ $text .= "<br /><br />" . $link;
+ }
+ break;
+ default:
+ // Transforms quoted tweets in rich attachments to avoid nested tweets
+ if (stripos(normalise_link($link), 'http://twitter.com/') === 0 && OEmbed::isAllowedURL($link)) {
+ try {
+ $oembed = OEmbed::getHTML($link, $preshare);
+ } catch (Exception $e) {
+ $oembed = sprintf('[bookmark=%s]%s[/bookmark]', $link, $preshare);
+ }
+
+ $text = $preshare . $oembed;
+ } else {
+ $text = trim($share[1]) . "\n";
+
+ $avatar = proxy_url($avatar, false, PROXY_SIZE_THUMB);
+
+ $tpl = get_markup_template('shared_content.tpl');
+ $text .= replace_macros($tpl, [
+ '$profile' => $profile,
+ '$avatar' => $avatar,
+ '$author' => $author,
+ '$link' => $link,
+ '$posted' => $posted,
+ '$content' => trim($share[3])
+ ]);
+ }
+ break;
+ }
+
+ return $text;
+ }
+
+ private static function removePictureLinksCallback($match)
+ {
+ $text = Cache::get($match[1]);
+
+ if (is_null($text)) {
+ $a = get_app();
+
+ $stamp1 = microtime(true);
+
+ $ch = @curl_init($match[1]);
+ @curl_setopt($ch, CURLOPT_NOBODY, true);
+ @curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+ @curl_setopt($ch, CURLOPT_USERAGENT, $a->get_useragent());
+ @curl_exec($ch);
+ $curl_info = @curl_getinfo($ch);
+
+ $a->save_timestamp($stamp1, "network");
+
+ if (substr($curl_info["content_type"], 0, 6) == "image/") {
+ $text = "[url=" . $match[1] . "]" . $match[1] . "[/url]";
+ } else {
+ $text = "[url=" . $match[2] . "]" . $match[2] . "[/url]";
+
+ // if its not a picture then look if its a page that contains a picture link
+ $body = Network::fetchUrl($match[1]);
+
+ $doc = new DOMDocument();
+ @$doc->loadHTML($body);
+ $xpath = new DomXPath($doc);
+ $list = $xpath->query("//meta[@name]");
+ foreach ($list as $node) {
+ $attr = [];
+
+ if ($node->attributes->length) {
+ foreach ($node->attributes as $attribute) {
+ $attr[$attribute->name] = $attribute->value;
+ }
+ }
+
+ if (strtolower($attr["name"]) == "twitter:image") {
+ $text = "[url=" . $attr["content"] . "]" . $attr["content"] . "[/url]";
+ }
+ }
+ }
+ Cache::set($match[1], $text);
+ }
+
+ return $text;
+ }
+
+ private static function expandLinksCallback($match)
+ {
+ if (($match[3] == "") || ($match[2] == $match[3]) || stristr($match[2], $match[3])) {
+ return ($match[1] . "[url]" . $match[2] . "[/url]");
+ } else {
+ return ($match[1] . $match[3] . " [url]" . $match[2] . "[/url]");
+ }
+ }
+
+ private static function cleanPictureLinksCallback($match)
+ {
+ $text = Cache::get($match[1]);
+
+ if (is_null($text)) {
+ $a = get_app();
+
+ $stamp1 = microtime(true);
+
+ $ch = @curl_init($match[1]);
+ @curl_setopt($ch, CURLOPT_NOBODY, true);
+ @curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+ @curl_setopt($ch, CURLOPT_USERAGENT, $a->get_useragent());
+ @curl_exec($ch);
+ $curl_info = @curl_getinfo($ch);
+
+ $a->save_timestamp($stamp1, "network");
+
+ // if its a link to a picture then embed this picture
+ if (substr($curl_info["content_type"], 0, 6) == "image/") {
+ $text = "[img]" . $match[1] . "[/img]";
+ } else {
+ $text = "[img]" . $match[2] . "[/img]";
+
+ // if its not a picture then look if its a page that contains a picture link
+ $body = Network::fetchUrl($match[1]);
+
+ $doc = new DOMDocument();
+ @$doc->loadHTML($body);
+ $xpath = new DomXPath($doc);
+ $list = $xpath->query("//meta[@name]");
+ foreach ($list as $node) {
+ $attr = [];
+ if ($node->attributes->length) {
+ foreach ($node->attributes as $attribute) {
+ $attr[$attribute->name] = $attribute->value;
+ }
+ }
+
+ if (strtolower($attr["name"]) == "twitter:image") {
+ $text = "[img]" . $attr["content"] . "[/img]";
+ }
+ }
+ }
+ Cache::set($match[1], $text);
+ }
+
+ return $text;
+ }
+
+ public static function cleanPictureLinks($text)
+ {
+ $return = preg_replace_callback("&\[url=([^\[\]]*)\]\[img\](.*)\[\/img\]\[\/url\]&Usi", 'self::cleanPictureLinksCallback', $text);
+ return $return;
+ }
+
+ private static function textHighlightCallback($match)
+ {
+ if (in_array(strtolower($match[1]),
+ ['php', 'css', 'mysql', 'sql', 'abap', 'diff', 'html', 'perl', 'ruby',
+ 'vbscript', 'avrc', 'dtd', 'java', 'xml', 'cpp', 'python', 'javascript', 'js', 'sh'])
+ ) {
+ return text_highlight($match[2], strtolower($match[1]));
+ }
+ return $match[0];
+ }
+
+ /**
+ * @brief Converts a BBCode message to HTML message
+ *
+ * BBcode 2 HTML was written by WAY2WEB.net
+ * extended to work with Mistpark/Friendica - Mike Macgirvin
+ *
+ * Simple HTML values meaning:
+ * - 0: Friendica display
+ * - 1: Unused
+ * - 2: Used for Facebook, Google+, Windows Phone push, Friendica API
+ * - 3: Used before converting to Markdown in bb2diaspora.php
+ * - 4: Used for WordPress, Libertree (before Markdown), pump.io and tumblr
+ * - 5: Unused
+ * - 6: Used for Appnet
+ * - 7: Used for dfrn, OStatus
+ * - 8: Used for WP backlink text setting
+ *
+ * @param string $text
+ * @param bool $try_oembed
+ * @param int $simple_html
+ * @param bool $for_plaintext
+ * @return string
+ */
+ public static function convert($text, $try_oembed = true, $simple_html = false, $for_plaintext = false)
+ {
+ $a = get_app();
+
+ /*
+ * preg_match_callback function to replace potential Oembed tags with Oembed content
+ *
+ * $match[0] = [tag]$url[/tag] or [tag=$url]$title[/tag]
+ * $match[1] = $url
+ * $match[2] = $title or absent
+ */
+ $try_oembed_callback = function ($match)
+ {
+ $url = $match[1];
+ $title = defaults($match, 2, null);
+
+ try {
+ $return = OEmbed::getHTML($url, $title);
+ } catch (Exception $ex) {
+ $return = $match[0];
+ }
+
+ return $return;
+ };
+
+ // Hide all [noparse] contained bbtags by spacefying them
+ // POSSIBLE BUG --> Will the 'preg' functions crash if there's an embedded image?
+
+ $text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'self::escapeNoparseCallback', $text);
+ $text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'self::escapeNoparseCallback', $text);
+ $text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'self::escapeNoparseCallback', $text);
+
+ // Remove the abstract element. It is a non visible element.
+ $text = self::stripAbstract($text);
+
+ // Move all spaces out of the tags
+ $text = preg_replace("/\[(\w*)\](\s*)/ism", '$2[$1]', $text);
+ $text = preg_replace("/(\s*)\[\/(\w*)\]/ism", '[/$2]$1', $text);
+
+ // Extract the private images which use data urls since preg has issues with
+ // large data sizes. Stash them away while we do bbcode conversion, and then put them back
+ // in after we've done all the regex matching. We cannot use any preg functions to do this.
+
+ $extracted = self::extractImagesFromItemBody($text);
+ $text = $extracted['body'];
+ $saved_image = $extracted['images'];
+
+ // If we find any event code, turn it into an event.
+ // After we're finished processing the bbcode we'll
+ // replace all of the event code with a reformatted version.
+
+ $ev = bbtoevent($text);
+
+ // Replace any html brackets with HTML Entities to prevent executing HTML or script
+ // Don't use strip_tags here because it breaks [url] search by replacing & with amp
+
+ $text = str_replace("<", "<", $text);
+ $text = str_replace(">", ">", $text);
+
+ // remove some newlines before the general conversion
+ $text = preg_replace("/\s?\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism", "[share$1]$2[/share]", $text);
+ $text = preg_replace("/\s?\[quote(.*?)\]\s?(.*?)\s?\[\/quote\]\s?/ism", "[quote$1]$2[/quote]", $text);
+
+ $text = preg_replace("/\n\[code\]/ism", "[code]", $text);
+ $text = preg_replace("/\[\/code\]\n/ism", "[/code]", $text);
+
+ // when the content is meant exporting to other systems then remove the avatar picture since this doesn't really look good on these systems
+ if (!$try_oembed) {
+ $text = preg_replace("/\[share(.*?)avatar\s?=\s?'.*?'\s?(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism", "\n[share$1$2]$3[/share]", $text);
+ }
+
+ // Check for [code] text here, before the linefeeds are messed with.
+ // The highlighter will unescape and re-escape the content.
+ if (strpos($text, '[code=') !== false) {
+ $text = preg_replace_callback("/\[code=(.*?)\](.*?)\[\/code\]/ism", 'self::textHighlightCallback', $text);
+ }
+ // Convert new line chars to html <br /> tags
+
+ // nlbr seems to be hopelessly messed up
+ // $Text = nl2br($Text);
+
+ // We'll emulate it.
+
+ $text = trim($text);
+ $text = str_replace("\r\n", "\n", $text);
+
+ // removing multiplicated newlines
+ if (Config::get("system", "remove_multiplicated_lines")) {
+ $search = ["\n\n\n", "\n ", " \n", "[/quote]\n\n", "\n[/quote]", "[/li]\n", "\n[li]", "\n[ul]", "[/ul]\n", "\n\n[share ", "[/attachment]\n",
+ "\n[h1]", "[/h1]\n", "\n[h2]", "[/h2]\n", "\n[h3]", "[/h3]\n", "\n[h4]", "[/h4]\n", "\n[h5]", "[/h5]\n", "\n[h6]", "[/h6]\n"];
+ $replace = ["\n\n", "\n", "\n", "[/quote]\n", "[/quote]", "[/li]", "[li]", "[ul]", "[/ul]", "\n[share ", "[/attachment]",
+ "[h1]", "[/h1]", "[h2]", "[/h2]", "[h3]", "[/h3]", "[h4]", "[/h4]", "[h5]", "[/h5]", "[h6]", "[/h6]"];
+ do {
+ $oldtext = $text;
+ $text = str_replace($search, $replace, $text);
+ } while ($oldtext != $text);
+ }
+
+ // Set up the parameters for a URL search string
+ $URLSearchString = "^\[\]";
+ // Set up the parameters for a MAIL search string
+ $MAILSearchString = $URLSearchString;
+
+ // if the HTML is used to generate plain text, then don't do this search, but replace all URL of that kind to text
+ if (!$for_plaintext) {
+ // Autolink feature (thanks to http://code.seebz.net/p/autolink-php/)
+ // Currently disabled, since the function is too greedy
+ // $autolink_regex = "`([^\]\=\"']|^)(https?\://[^\s<]+[^\s<\.\)])`ism";
+ $autolink_regex = "/([^\]\='".'"'."]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism";
+ $text = preg_replace($autolink_regex, '$1[url]$2[/url]', $text);
+ if ($simple_html == 7) {
+ $text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism", 'self::convertUrlForMastodonCallback', $text);
+ $text = preg_replace_callback("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", 'self::convertUrlForMastodonCallback', $text);
+ } else {
+ $text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism", 'self::shortenVisibleUrlCallback', $text);
+ $text = preg_replace_callback("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", 'self::shortenVisibleUrlCallback', $text);
+ }
+ } else {
+ $text = preg_replace("(\[url\]([$URLSearchString]*)\[\/url\])ism", " $1 ", $text);
+ $text = preg_replace_callback("&\[url=([^\[\]]*)\]\[img\](.*)\[\/img\]\[\/url\]&Usi", 'self::removePictureLinksCallback', $text);
+ }
+
+
+ // Handle attached links or videos
+ $text = self::convertAttachment($text, $simple_html, $try_oembed);
+
+ $text = str_replace(["\r","\n"], ['<br />', '<br />'], $text);
+
+ // Remove all hashtag addresses
+ if ((!$try_oembed || $simple_html) && !in_array($simple_html, [3, 7])) {
+ $text = preg_replace("/([#@!])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '$1$3', $text);
+ } elseif ($simple_html == 3) {
+ // The ! is converted to @ since Diaspora only understands the @
+ $text = preg_replace("/([@!])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
+ '@<a href="$2">$3</a>',
+ $text);
+ } elseif ($simple_html == 7) {
+ $text = preg_replace("/([@!])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
+ '$1<span class="vcard"><a href="$2" class="url" title="$3"><span class="fn nickname mention">$3</span></a></span>',
+ $text);
+ } elseif (!$simple_html) {
+ $text = preg_replace("/([@!])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
+ '$1<a href="$2" class="userinfo mention" title="$3">$3</a>',
+ $text);
+ }
+
+ // Bookmarks in red - will be converted to bookmarks in friendica
+ $text = preg_replace("/#\^\[url\]([$URLSearchString]*)\[\/url\]/ism", '[bookmark=$1]$1[/bookmark]', $text);
+ $text = preg_replace("/#\^\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '[bookmark=$1]$2[/bookmark]', $text);
+ $text = preg_replace("/#\[url\=[$URLSearchString]*\]\^\[\/url\]\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/i",
+ "[bookmark=$1]$2[/bookmark]", $text);
+
+ if (in_array($simple_html, [2, 6, 7, 8, 9])) {
+ $text = preg_replace_callback("/([^#@!])\[url\=([^\]]*)\](.*?)\[\/url\]/ism", "self::expandLinksCallback", $text);
+ //$Text = preg_replace("/[^#@!]\[url\=([^\]]*)\](.*?)\[\/url\]/ism", ' $2 [url]$1[/url]', $Text);
+ $text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", ' $2 [url]$1[/url]',$text);
+ }
+
+ if ($simple_html == 5) {
+ $text = preg_replace("/[^#@!]\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '[url]$1[/url]', $text);
+ }
+
+ // Perform URL Search
+ if ($try_oembed) {
+ $text = preg_replace_callback("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $try_oembed_callback, $text);
+ }
+
+ if ($simple_html == 5) {
+ $text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", '[url]$1[/url]', $text);
+ } else {
+ $text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", '[url=$1]$2[/url]', $text);
+ }
+
+ // Handle Diaspora posts
+ $text = preg_replace_callback(
+ "&\[url=/posts/([^\[\]]*)\](.*)\[\/url\]&Usi",
+ function ($match) {
+ return "[url=" . System::baseUrl() . "/display/" . $match[1] . "]" . $match[2] . "[/url]";
+ }, $text
+ );
+
+ // Server independent link to posts and comments
+ // See issue: https://github.com/diaspora/diaspora_federation/issues/75
+ $expression = "=diaspora://.*?/post/([0-9A-Za-z\-_@.:]{15,254}[0-9A-Za-z])=ism";
+ $text = preg_replace($expression, System::baseUrl()."/display/$1", $text);
+
+ $text = preg_replace("/([#])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
+ '$1<a href="' . System::baseUrl() . '/search?tag=$3" class="tag" title="$3">$3</a>', $text);
+
+ $text = preg_replace("/\[url\=([$URLSearchString]*)\]#(.*?)\[\/url\]/ism",
+ '#<a href="' . System::baseUrl() . '/search?tag=$2" class="tag" title="$2">$2</a>', $text);
+
+ $text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$1</a>', $text);
+ $text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $text);
+ //$Text = preg_replace("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
+
+ // Red compatibility, though the link can't be authenticated on Friendica
+ $text = preg_replace("/\[zrl\=([$URLSearchString]*)\](.*?)\[\/zrl\]/ism", '<a href="$1" target="_blank">$2</a>', $text);
+
+
+ // we may need to restrict this further if it picks up too many strays
+ // link acct:user@host to a webfinger profile redirector
+
+ $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);
+
+ // Perform MAIL Search
+ $text = preg_replace("/\[mail\]([$MAILSearchString]*)\[\/mail\]/", '<a href="mailto:$1">$1</a>', $text);
+ $text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '<a href="mailto:$1">$2</a>', $text);
+
+ // leave open the posibility of [map=something]
+ // this is replaced in prepare_body() which has knowledge of the item location
+
+ if (strpos($text, '[/map]') !== false) {
+ $text = preg_replace_callback(
+ "/\[map\](.*?)\[\/map\]/ism",
+ function ($match) use ($simple_html) {
+ return str_replace($match[0], '<p class="map">' . Map::byLocation($match[1], $simple_html) . '</p>', $match[0]);
+ },
+ $text
+ );
+ }
+ if (strpos($text, '[map=') !== false) {
+ $text = preg_replace_callback(
+ "/\[map=(.*?)\]/ism",
+ function ($match) use ($simple_html) {
+ return str_replace($match[0], '<p class="map">' . Map::byCoordinates(str_replace('/', ' ', $match[1]), $simple_html) . '</p>', $match[0]);
+ },
+ $text
+ );
+ }
+ if (strpos($text, '[map]') !== false) {
+ $text = preg_replace("/\[map\]/", '<p class="map"></p>', $text);
+ }
+
+ // Check for headers
+ $text = preg_replace("(\[h1\](.*?)\[\/h1\])ism", '<h1>$1</h1>', $text);
+ $text = preg_replace("(\[h2\](.*?)\[\/h2\])ism", '<h2>$1</h2>', $text);
+ $text = preg_replace("(\[h3\](.*?)\[\/h3\])ism", '<h3>$1</h3>', $text);
+ $text = preg_replace("(\[h4\](.*?)\[\/h4\])ism", '<h4>$1</h4>', $text);
+ $text = preg_replace("(\[h5\](.*?)\[\/h5\])ism", '<h5>$1</h5>', $text);
+ $text = preg_replace("(\[h6\](.*?)\[\/h6\])ism", '<h6>$1</h6>', $text);
+
+ // Check for paragraph
+ $text = preg_replace("(\[p\](.*?)\[\/p\])ism", '<p>$1</p>', $text);
+
+ // Check for bold text
+ $text = preg_replace("(\[b\](.*?)\[\/b\])ism", '<strong>$1</strong>', $text);
+
+ // Check for Italics text
+ $text = preg_replace("(\[i\](.*?)\[\/i\])ism", '<em>$1</em>', $text);
+
+ // Check for Underline text
+ $text = preg_replace("(\[u\](.*?)\[\/u\])ism", '<u>$1</u>', $text);
+
+ // Check for strike-through text
+ $text = preg_replace("(\[s\](.*?)\[\/s\])ism", '<strike>$1</strike>', $text);
+
+ // Check for over-line text
+ $text = preg_replace("(\[o\](.*?)\[\/o\])ism", '<span class="overline">$1</span>', $text);
+
+ // Check for colored text
+ $text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])ism", "<span style=\"color: $1;\">$2</span>", $text);
+
+ // Check for sized text
+ // [size=50] --> font-size: 50px (with the unit).
+ $text = preg_replace("(\[size=(\d*?)\](.*?)\[\/size\])ism", "<span style=\"font-size: $1px; line-height: initial;\">$2</span>", $text);
+ $text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])ism", "<span style=\"font-size: $1; line-height: initial;\">$2</span>", $text);
+
+ // Check for centered text
+ $text = preg_replace("(\[center\](.*?)\[\/center\])ism", "<div style=\"text-align:center;\">$1</div>", $text);
+
+ // Check for list text
+ $text = str_replace("[*]", "<li>", $text);
+
+ // Check for style sheet commands
+ $text = preg_replace_callback(
+ "(\[style=(.*?)\](.*?)\[\/style\])ism",
+ function ($match) {
+ return "<span style=\"" . self::cleanCss($match[1]) . ";\">" . $match[2] . "</span>";
+ },
+ $text
+ );
+
+ // Check for CSS classes
+ $text = preg_replace_callback(
+ "(\[class=(.*?)\](.*?)\[\/class\])ism",
+ function ($match) {
+ return "<span class=\"" . self::cleanCss($match[1]) . "\">" . $match[2] . "</span>";
+ },
+ $text
+ );
+
+ // handle nested lists
+ $endlessloop = 0;
+
+ while ((((strpos($text, "[/list]") !== false) && (strpos($text, "[list") !== false)) ||
+ ((strpos($text, "[/ol]") !== false) && (strpos($text, "[ol]") !== false)) ||
+ ((strpos($text, "[/ul]") !== false) && (strpos($text, "[ul]") !== false)) ||
+ ((strpos($text, "[/li]") !== false) && (strpos($text, "[li]") !== false))) && (++$endlessloop < 20)) {
+ $text = preg_replace("/\[list\](.*?)\[\/list\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>', $text);
+ $text = preg_replace("/\[list=\](.*?)\[\/list\]/ism", '<ul class="listnone" style="list-style-type: none;">$1</ul>', $text);
+ $text = preg_replace("/\[list=1\](.*?)\[\/list\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>', $text);
+ $text = preg_replace("/\[list=((?-i)i)\](.*?)\[\/list\]/ism", '<ul class="listlowerroman" style="list-style-type: lower-roman;">$2</ul>', $text);
+ $text = preg_replace("/\[list=((?-i)I)\](.*?)\[\/list\]/ism", '<ul class="listupperroman" style="list-style-type: upper-roman;">$2</ul>', $text);
+ $text = preg_replace("/\[list=((?-i)a)\](.*?)\[\/list\]/ism", '<ul class="listloweralpha" style="list-style-type: lower-alpha;">$2</ul>', $text);
+ $text = preg_replace("/\[list=((?-i)A)\](.*?)\[\/list\]/ism", '<ul class="listupperalpha" style="list-style-type: upper-alpha;">$2</ul>', $text);
+ $text = preg_replace("/\[ul\](.*?)\[\/ul\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>', $text);
+ $text = preg_replace("/\[ol\](.*?)\[\/ol\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>', $text);
+ $text = preg_replace("/\[li\](.*?)\[\/li\]/ism", '<li>$1</li>', $text);
+ }
+
+ $text = preg_replace("/\[th\](.*?)\[\/th\]/sm", '<th>$1</th>', $text);
+ $text = preg_replace("/\[td\](.*?)\[\/td\]/sm", '<td>$1</td>', $text);
+ $text = preg_replace("/\[tr\](.*?)\[\/tr\]/sm", '<tr>$1</tr>', $text);
+ $text = preg_replace("/\[table\](.*?)\[\/table\]/sm", '<table>$1</table>', $text);
+
+ $text = preg_replace("/\[table border=1\](.*?)\[\/table\]/sm", '<table border="1" >$1</table>', $text);
+ $text = preg_replace("/\[table border=0\](.*?)\[\/table\]/sm", '<table border="0" >$1</table>', $text);
+
+ $text = str_replace('[hr]', '<hr />', $text);
+
+ // This is actually executed in prepare_body()
+
+ $text = str_replace('[nosmile]', '', $text);
+
+ // Check for font change text
+ $text = preg_replace("/\[font=(.*?)\](.*?)\[\/font\]/sm", "<span style=\"font-family: $1;\">$2</span>", $text);
+
+ // Declare the format for [code] layout
+
+ $CodeLayout = '<code>$1</code>';
+ // Check for [code] text
+ $text = preg_replace("/\[code\](.*?)\[\/code\]/ism", "$CodeLayout", $text);
+
+ // Declare the format for [spoiler] layout
+ $SpoilerLayout = '<blockquote class="spoiler">$1</blockquote>';
+
+ // Check for [spoiler] text
+ // handle nested quotes
+ $endlessloop = 0;
+ while ((strpos($text, "[/spoiler]") !== false) && (strpos($text, "[spoiler]") !== false) && (++$endlessloop < 20)) {
+ $text = preg_replace("/\[spoiler\](.*?)\[\/spoiler\]/ism", "$SpoilerLayout", $text);
+ }
+
+ // Check for [spoiler=Author] text
+
+ $t_wrote = L10n::t('$1 wrote:');
+
+ // handle nested quotes
+ $endlessloop = 0;
+ while ((strpos($text, "[/spoiler]")!== false) && (strpos($text, "[spoiler=") !== false) && (++$endlessloop < 20)) {
+ $text = preg_replace("/\[spoiler=[\"\']*(.*?)[\"\']*\](.*?)\[\/spoiler\]/ism",
+ "<br /><strong class=".'"spoiler"'.">" . $t_wrote . "</strong><blockquote class=".'"spoiler"'.">$2</blockquote>",
+ $text);
+ }
+
+ // Declare the format for [quote] layout
+ $QuoteLayout = '<blockquote>$1</blockquote>';
+
+ // Check for [quote] text
+ // handle nested quotes
+ $endlessloop = 0;
+ while ((strpos($text, "[/quote]") !== false) && (strpos($text, "[quote]") !== false) && (++$endlessloop < 20)) {
+ $text = preg_replace("/\[quote\](.*?)\[\/quote\]/ism", "$QuoteLayout", $text);
+ }
+
+ // Check for [quote=Author] text
+
+ $t_wrote = L10n::t('$1 wrote:');
+
+ // handle nested quotes
+ $endlessloop = 0;
+ while ((strpos($text, "[/quote]")!== false) && (strpos($text, "[quote=") !== false) && (++$endlessloop < 20)) {
+ $text = preg_replace("/\[quote=[\"\']*(.*?)[\"\']*\](.*?)\[\/quote\]/ism",
+ "<p><strong class=".'"author"'.">" . $t_wrote . "</strong></p><blockquote>$2</blockquote>",
+ $text);
+ }
+
+
+ // [img=widthxheight]image source[/img]
+ $text = preg_replace_callback(
+ "/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism",
+ function ($matches) {
+ if (strpos($matches[3], "data:image/") === 0) {
+ return $matches[0];
+ }
+
+ $matches[3] = proxy_url($matches[3]);
+ return "[img=" . $matches[1] . "x" . $matches[2] . "]" . $matches[3] . "[/img]";
+ },
+ $text
+ );
+
+ $text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="width: $1px;" >', $text);
+ $text = preg_replace("/\[zmg\=([0-9]*)x([0-9]*)\](.*?)\[\/zmg\]/ism", '<img class="zrl" src="$3" style="width: $1px;" >', $text);
+
+ // Images
+ // [img]pathtoimage[/img]
+ $text = preg_replace_callback(
+ "/\[img\](.*?)\[\/img\]/ism",
+ function ($matches) {
+ if (strpos($matches[1], "data:image/") === 0) {
+ return $matches[0];
+ }
+
+ $matches[1] = proxy_url($matches[1]);
+ return "[img]" . $matches[1] . "[/img]";
+ },
+ $text
+ );
+
+ $text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '<img src="$1" alt="' . L10n::t('Image/photo') . '" />', $text);
+ $text = preg_replace("/\[zmg\](.*?)\[\/zmg\]/ism", '<img src="$1" alt="' . L10n::t('Image/photo') . '" />', $text);
+
+ // Shared content
+ $text = preg_replace_callback("/(.*?)\[share(.*?)\](.*?)\[\/share\]/ism",
+ function ($match) use ($simple_html) {
+ return self::convertShare($match, $simple_html);
+ }, $text);
+
+ $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);
+ $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 />', $text);
+ //$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 />', $Text);
+
+ // Try to Oembed
+ if ($try_oembed) {
+ $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);
+ $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);
+
+ $text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", $try_oembed_callback, $text);
+ $text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", $try_oembed_callback, $text);
+ } else {
+ $text = preg_replace("/\[video\](.*?)\[\/video\]/",
+ '<a href="$1" target="_blank">$1</a>', $text);
+ $text = preg_replace("/\[audio\](.*?)\[\/audio\]/",
+ '<a href="$1" target="_blank">$1</a>', $text);
+ }
+
+ // html5 video and audio
+
+
+ if ($try_oembed) {
+ $text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<iframe src="$1" width="' . $a->videowidth . '" height="' . $a->videoheight . '"><a href="$1">$1</a></iframe>', $text);
+ } else {
+ $text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<a href="$1">$1</a>', $text);
+ }
+
+ // Youtube extensions
+ if ($try_oembed) {
+ $text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", $try_oembed_callback, $text);
+ $text = preg_replace_callback("/\[youtube\](www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", $try_oembed_callback, $text);
+ $text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism", $try_oembed_callback, $text);
+ }
+
+ $text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism", '[youtube]$1[/youtube]', $text);
+ $text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism", '[youtube]$1[/youtube]', $text);
+ $text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism", '[youtube]$1[/youtube]', $text);
+
+ if ($try_oembed) {
+ $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);
+ } else {
+ $text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism",
+ '<a href="https://www.youtube.com/watch?v=$1" target="_blank">https://www.youtube.com/watch?v=$1</a>', $text);
+ }
+
+ if ($try_oembed) {
+ $text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism", $try_oembed_callback, $text);
+ $text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism", $try_oembed_callback, $text);
+ }
+
+ $text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism", '[vimeo]$1[/vimeo]', $text);
+ $text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism", '[vimeo]$1[/vimeo]', $text);
+
+ if ($try_oembed) {
+ $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);
+ } else {
+ $text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism",
+ '<a href="https://vimeo.com/$1" target="_blank">https://vimeo.com/$1</a>', $text);
+ }
+
+ // oembed tag
+ $text = OEmbed::BBCode2HTML($text);
+
+ // Avoid triple linefeeds through oembed
+ $text = str_replace("<br style='clear:left'></span><br /><br />", "<br style='clear:left'></span><br />", $text);
+
+ // If we found an event earlier, strip out all the event code and replace with a reformatted version.
+ // Replace the event-start section with the entire formatted event. The other bbcode is stripped.
+ // Summary (e.g. title) is required, earlier revisions only required description (in addition to
+ // start which is always required). Allow desc with a missing summary for compatibility.
+
+ if ((x($ev, 'desc') || x($ev, 'summary')) && x($ev, 'start')) {
+ $sub = format_event_html($ev, $simple_html);
+
+ $text = preg_replace("/\[event\-summary\](.*?)\[\/event\-summary\]/ism", '', $text);
+ $text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/ism", '', $text);
+ $text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/ism", $sub, $text);
+ $text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/ism", '', $text);
+ $text = preg_replace("/\[event\-location\](.*?)\[\/event\-location\]/ism", '', $text);
+ $text = preg_replace("/\[event\-adjust\](.*?)\[\/event\-adjust\]/ism", '', $text);
+ $text = preg_replace("/\[event\-id\](.*?)\[\/event\-id\]/ism", '', $text);
+ }
+
+ // Replace non graphical smilies for external posts
+ if ($simple_html) {
+ $text = Smilies::replace($text, false, true);
+ }
+
+ // Replace inline code blocks
+ $text = preg_replace_callback("|(?!<br[^>]*>)<code>([^<]*)</code>(?!<br[^>]*>)|ism",
+ function ($match) use ($simple_html) {
+ $return = '<key>' . $match[1] . '</key>';
+ // Use <code> for Diaspora inline code blocks
+ if ($simple_html === 3) {
+ $return = '<code>' . $match[1] . '</code>';
+ }
+ return $return;
+ }
+ , $text);
+
+ // Unhide all [noparse] contained bbtags unspacefying them
+ // and triming the [noparse] tag.
+
+ $text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'self::unescapeNoparseCallback', $text);
+ $text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'self::unescapeNoparseCallback', $text);
+ $text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'self::unescapeNoparseCallback', $text);
+
+
+ $text = preg_replace('/\[\&\;([#a-z0-9]+)\;\]/', '&$1;', $text);
+ $text = preg_replace('/\&\#039\;/', '\'', $text);
+ $text = preg_replace('/\"\;/', '"', $text);
+
+ // fix any escaped ampersands that may have been converted into links
+ $text = preg_replace('/\<([^>]*?)(src|href)=(.*?)\&\;(.*?)\>/ism', '<$1$2=$3&$4>', $text);
+
+ // sanitizes src attributes (http and redir URLs for displaying in a web page, cid used for inline images in emails)
+ $allowed_src_protocols = ['http', 'redir', 'cid'];
+ $text = preg_replace('#<([^>]*?)(src)="(?!' . implode('|', $allowed_src_protocols) . ')(.*?)"(.*?)>#ism',
+ '<$1$2=""$4 data-original-src="$3" class="invalid-src" title="' . L10n::t('Invalid source protocol') . '">', $text);
+
+ // sanitize href attributes (only whitelisted protocols URLs)
+ // default value for backward compatibility
+ $allowed_link_protocols = Config::get('system', 'allowed_link_protocols', ['ftp', 'mailto', 'gopher', 'cid']);
+
+ // Always allowed protocol even if config isn't set or not including it
+ $allowed_link_protocols[] = 'http';
+ $allowed_link_protocols[] = 'redir/';
+
+ $regex = '#<([^>]*?)(href)="(?!' . implode('|', $allowed_link_protocols) . ')(.*?)"(.*?)>#ism';
+ $text = preg_replace($regex, '<$1$2="javascript:void(0)"$4 data-original-href="$3" class="invalid-href" title="' . L10n::t('Invalid link protocol') . '">', $text);
+
+ if ($saved_image) {
+ $text = self::interpolateSavedImagesIntoItemBody($text, $saved_image);
+ }
+
+ // Clean up the HTML by loading and saving the HTML with the DOM.
+ // Bad structured html can break a whole page.
+ // For performance reasons do it only with ativated item cache or at export.
+ if (!$try_oembed || (get_itemcachepath() != "")) {
+ $doc = new DOMDocument();
+ $doc->preserveWhiteSpace = false;
+
+ $text = mb_convert_encoding($text, 'HTML-ENTITIES', "UTF-8");
+
+ $doctype = '<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">';
+ $encoding = '<?xml encoding="UTF-8">';
+ @$doc->loadHTML($encoding.$doctype."<html><body>".$text."</body></html>");
+ $doc->encoding = 'UTF-8';
+ $text = $doc->saveHTML();
+ $text = str_replace(["<html><body>", "</body></html>", $doctype, $encoding], ["", "", "", ""], $text);
+
+ $text = str_replace('<br></li>', '</li>', $text);
+
+ //$Text = mb_convert_encoding($Text, "UTF-8", 'HTML-ENTITIES');
+ }
+
+ // Clean up some useless linebreaks in lists
+ //$Text = str_replace('<br /><ul', '<ul ', $Text);
+ //$Text = str_replace('</ul><br />', '</ul>', $Text);
+ //$Text = str_replace('</li><br />', '</li>', $Text);
+ //$Text = str_replace('<br /><li>', '<li>', $Text);
+ //$Text = str_replace('<br /><ul', '<ul ', $Text);
+
+ Addon::callHooks('bbcode', $text);
+
+ return trim($text);
+ }
+
+ /**
+ * @brief Strips the "abstract" tag from the provided text
+ *
+ * @param string $text The text with BBCode
+ * @return string The same text - but without "abstract" element
+ */
+ public static function stripAbstract($text)
+ {
+ $text = preg_replace("/[\s|\n]*\[abstract\].*?\[\/abstract\][\s|\n]*/ism", '', $text);
+ $text = preg_replace("/[\s|\n]*\[abstract=.*?\].*?\[\/abstract][\s|\n]*/ism", '', $text);
+
+ return $text;
+ }
+
+ /**
+ * @brief Returns the value of the "abstract" element
+ *
+ * @param string $text The text that maybe contains the element
+ * @param string $addon The addon for which the abstract is meant for
+ * @return string The abstract
+ */
+ private static function getAbstract($text, $addon = "")
+ {
+ $abstract = "";
+ $abstracts = [];
+ $addon = strtolower($addon);
+
+ if (preg_match_all("/\[abstract=(.*?)\](.*?)\[\/abstract\]/ism", $text, $results, PREG_SET_ORDER)) {
+ foreach ($results AS $result) {
+ $abstracts[strtolower($result[1])] = $result[2];
+ }
+ }
+
+ if (isset($abstracts[$addon])) {
+ $abstract = $abstracts[$addon];
+ }
+
+ if ($abstract == "" && preg_match("/\[abstract\](.*?)\[\/abstract\]/ism", $text, $result)) {
+ $abstract = $result[1];
+ }
+
+ return $abstract;
+ }
}
projects / friendica.git / blobdiff