Message type ("link", "video", "photo") * 'text' -> Text before the shared message * 'after' -> Text after the shared message * 'image' -> Preview image of the message * 'url' -> Url to the attached message * 'title' -> Title of the attachment * 'description' -> Description of the attachment */ private static function getOldAttachmentData($body) { $post = []; // Simplify image codes $body = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $body); if (preg_match_all("(\[class=(.*?)\](.*?)\[\/class\])ism", $body, $attached, PREG_SET_ORDER)) { foreach ($attached as $data) { if (!in_array($data[1], ["type-link", "type-video", "type-photo"])) { continue; } $post["type"] = substr($data[1], 5); $pos = strpos($body, $data[0]); if ($pos > 0) { $post["text"] = trim(substr($body, 0, $pos)); $post["after"] = trim(substr($body, $pos + strlen($data[0]))); } else { $post["text"] = trim(str_replace($data[0], "", $body)); } $attacheddata = $data[2]; $URLSearchString = "^\[\]"; if (preg_match("/\[img\]([$URLSearchString]*)\[\/img\]/ism", $attacheddata, $matches)) { $picturedata = Image::getInfoFromURL($matches[1]); if ($picturedata) { if (($picturedata[0] >= 500) && ($picturedata[0] >= $picturedata[1])) { $post["image"] = $matches[1]; } else { $post["preview"] = $matches[1]; } } } if (preg_match("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism", $attacheddata, $matches)) { $post["url"] = $matches[1]; $post["title"] = $matches[2]; } if (($post["url"] == "") && (in_array($post["type"], ["link", "video"])) && preg_match("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", $attacheddata, $matches)) { $post["url"] = $matches[1]; } // Search for description if (preg_match("/\[quote\](.*?)\[\/quote\]/ism", $attacheddata, $matches)) { $post["description"] = $matches[1]; } } } return $post; } /** * @brief Fetches attachment data that were generated with the "attachment" element * * @param string $body Message body * @return array * 'type' -> Message type ("link", "video", "photo") * 'text' -> Text before the shared message * 'after' -> Text after the shared message * 'image' -> Preview image of the message * 'url' -> Url to the attached message * 'title' -> Title of the attachment * 'description' -> Description of the attachment */ public static function getAttachmentData($body) { $data = []; if (!preg_match("/(.*)\[attachment(.*?)\](.*?)\[\/attachment\](.*)/ism", $body, $match)) { return self::getOldAttachmentData($body); } $attributes = $match[2]; $data["text"] = trim($match[1]); $type = ""; preg_match("/type='(.*?)'/ism", $attributes, $matches); if (x($matches, 1)) { $type = strtolower($matches[1]); } preg_match('/type="(.*?)"/ism', $attributes, $matches); if (x($matches, 1)) { $type = strtolower($matches[1]); } if ($type == "") { return []; } if (!in_array($type, ["link", "audio", "photo", "video"])) { return []; } if ($type != "") { $data["type"] = $type; } $url = ""; preg_match("/url='(.*?)'/ism", $attributes, $matches); if (x($matches, 1)) { $url = $matches[1]; } preg_match('/url="(.*?)"/ism', $attributes, $matches); if (x($matches, 1)) { $url = $matches[1]; } if ($url != "") { $data["url"] = html_entity_decode($url, ENT_QUOTES, 'UTF-8'); } $title = ""; preg_match("/title='(.*?)'/ism", $attributes, $matches); if (x($matches, 1)) { $title = $matches[1]; } preg_match('/title="(.*?)"/ism', $attributes, $matches); if (x($matches, 1)) { $title = $matches[1]; } if ($title != "") { $title = self::convert(html_entity_decode($title, ENT_QUOTES, 'UTF-8'), false, true); $title = html_entity_decode($title, ENT_QUOTES, 'UTF-8'); $title = str_replace(["[", "]"], ["[", "]"], $title); $data["title"] = $title; } $image = ""; preg_match("/image='(.*?)'/ism", $attributes, $matches); if (x($matches, 1)) { $image = $matches[1]; } preg_match('/image="(.*?)"/ism', $attributes, $matches); if (x($matches, 1)) { $image = $matches[1]; } if ($image != "") { $data["image"] = html_entity_decode($image, ENT_QUOTES, 'UTF-8'); } $preview = ""; preg_match("/preview='(.*?)'/ism", $attributes, $matches); if (x($matches, 1)) { $preview = $matches[1]; } preg_match('/preview="(.*?)"/ism', $attributes, $matches); if (x($matches, 1)) { $preview = $matches[1]; } if ($preview != "") { $data["preview"] = html_entity_decode($preview, ENT_QUOTES, 'UTF-8'); } $data["description"] = trim($match[3]); $data["after"] = trim($match[4]); return $data; } public static function getAttachedData($body, $item = []) { /* - text: - type: link, video, photo - title: - url: - image: - description: - (thumbnail) */ $has_title = !empty($item['title']); $plink = (!empty($item['plink']) ? $item['plink'] : ''); $post = self::getAttachmentData($body); // if nothing is found, it maybe having an image. if (!isset($post["type"])) { // Simplify image codes $body = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $body); $URLSearchString = "^\[\]"; if (preg_match_all("(\[url=([$URLSearchString]*)\]\s*\[img\]([$URLSearchString]*)\[\/img\]\s*\[\/url\])ism", $body, $pictures, PREG_SET_ORDER)) { if ((count($pictures) == 1) && !$has_title) { // Checking, if the link goes to a picture $data = ParseUrl::getSiteinfoCached($pictures[0][1], true); // Workaround: // Sometimes photo posts to the own album are not detected at the start. // So we seem to cannot use the cache for these cases. That's strange. if (($data["type"] != "photo") && strstr($pictures[0][1], "/photos/")) { $data = ParseUrl::getSiteinfo($pictures[0][1], true); } if ($data["type"] == "photo") { $post["type"] = "photo"; if (isset($data["images"][0])) { $post["image"] = $data["images"][0]["src"]; $post["url"] = $data["url"]; } else { $post["image"] = $data["url"]; } $post["preview"] = $pictures[0][2]; $post["text"] = str_replace($pictures[0][0], "", $body); } else { $imgdata = Image::getInfoFromURL($pictures[0][1]); if ($imgdata && substr($imgdata["mime"], 0, 6) == "image/") { $post["type"] = "photo"; $post["image"] = $pictures[0][1]; $post["preview"] = $pictures[0][2]; $post["text"] = str_replace($pictures[0][0], "", $body); } } } elseif (count($pictures) > 0) { $post["type"] = "link"; $post["url"] = $plink; $post["image"] = $pictures[0][2]; $post["text"] = $body; } } elseif (preg_match_all("(\[img\]([$URLSearchString]*)\[\/img\])ism", $body, $pictures, PREG_SET_ORDER)) { if ((count($pictures) == 1) && !$has_title) { $post["type"] = "photo"; $post["image"] = $pictures[0][1]; $post["text"] = str_replace($pictures[0][0], "", $body); } elseif (count($pictures) > 0) { $post["type"] = "link"; $post["url"] = $plink; $post["image"] = $pictures[0][1]; $post["text"] = $body; } } // Test for the external links preg_match_all("(\[url\]([$URLSearchString]*)\[\/url\])ism", $body, $links1, PREG_SET_ORDER); preg_match_all("(\[url\=([$URLSearchString]*)\].*?\[\/url\])ism", $body, $links2, PREG_SET_ORDER); $links = array_merge($links1, $links2); // If there is only a single one, then use it. // This should cover link posts via API. if ((count($links) == 1) && !isset($post["preview"]) && !$has_title) { $post["type"] = "link"; $post["text"] = trim($body); $post["url"] = $links[0][1]; } // Now count the number of external media links preg_match_all("(\[vimeo\](.*?)\[\/vimeo\])ism", $body, $links1, PREG_SET_ORDER); preg_match_all("(\[youtube\\](.*?)\[\/youtube\\])ism", $body, $links2, PREG_SET_ORDER); preg_match_all("(\[video\\](.*?)\[\/video\\])ism", $body, $links3, PREG_SET_ORDER); preg_match_all("(\[audio\\](.*?)\[\/audio\\])ism", $body, $links4, PREG_SET_ORDER); // Add them to the other external links $links = array_merge($links, $links1, $links2, $links3, $links4); // Are there more than one? if (count($links) > 1) { // The post will be the type "text", which means a blog post unset($post["type"]); $post["url"] = $plink; } if (!isset($post["type"])) { $post["type"] = "text"; $post["text"] = trim($body); } } elseif (isset($post["url"]) && ($post["type"] == "video")) { $data = ParseUrl::getSiteinfoCached($post["url"], true); if (isset($data["images"][0])) { $post["image"] = $data["images"][0]["src"]; } } return $post; } /** * @brief Convert a message into plaintext for connectors to other networks * * @param array $b The message array that is about to be posted * @param int $limit The maximum number of characters when posting to that network * @param bool $includedlinks Has an attached link to be included into the message? * @param int $htmlmode This triggers the behaviour of the bbcode conversion * @param string $target_network Name of the network where the post should go to. * * @return string The converted message */ public static function toPlaintext($b, $limit = 0, $includedlinks = false, $htmlmode = 2, $target_network = "") { // Remove the hash tags $URLSearchString = "^\[\]"; $body = preg_replace("/([#@])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '$1$3', $b["body"]); // Add an URL element if the text contains a raw link $body = preg_replace("/([^\]\='".'"'."]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1[url]$2[/url]', $body); // Remove the abstract $body = self::stripAbstract($body); // At first look at data that is attached via "type-..." stuff // This will hopefully replaced with a dedicated bbcode later //$post = self::getAttachedData($b["body"]); $post = self::getAttachedData($body, $b); if (($b["title"] != "") && ($post["text"] != "")) { $post["text"] = trim($b["title"]."\n\n".$post["text"]); } elseif ($b["title"] != "") { $post["text"] = trim($b["title"]); } $abstract = ""; // Fetch the abstract from the given target network if ($target_network != "") { $default_abstract = self::getAbstract($b["body"]); $abstract = self::getAbstract($b["body"], $target_network); // If we post to a network with no limit we only fetch // an abstract exactly for this network if (($limit == 0) && ($abstract == $default_abstract)) { $abstract = ""; } } else {// Try to guess the correct target network switch ($htmlmode) { case 8: $abstract = self::getAbstract($b["body"], NETWORK_TWITTER); break; case 7: $abstract = self::getAbstract($b["body"], NETWORK_STATUSNET); break; case 6: $abstract = self::getAbstract($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) { $abstract = self::getAbstract($b["body"]); } } } if ($abstract != "") { $post["text"] = $abstract; if ($post["type"] == "text") { $post["type"] = "link"; $post["url"] = $b["plink"]; } } $html = self::convert($post["text"].$post["after"], false, $htmlmode); $msg = HTML::toPlaintext($html, 0, true); $msg = trim(html_entity_decode($msg, ENT_QUOTES, 'UTF-8')); $link = ""; if ($includedlinks) { if ($post["type"] == "link") { $link = $post["url"]; } elseif ($post["type"] == "text") { $link = $post["url"]; } elseif ($post["type"] == "video") { $link = $post["url"]; } elseif ($post["type"] == "photo") { $link = $post["image"]; } if (($msg == "") && isset($post["title"])) { $msg = trim($post["title"]); } if (($msg == "") && isset($post["description"])) { $msg = trim($post["description"]); } // If the link is already contained in the post, then it neeedn't to be added again // But: if the link is beyond the limit, then it has to be added. if (($link != "") && strstr($msg, $link)) { $pos = strpos($msg, $link); // Will the text be shortened in the link? // Or is the link the last item in the post? if (($limit > 0) && ($pos < $limit) && (($pos + 23 > $limit) || ($pos + strlen($link) == strlen($msg)))) { $msg = trim(str_replace($link, "", $msg)); } elseif (($limit == 0) || ($pos < $limit)) { // The limit has to be increased since it will be shortened - but not now // Only do it with Twitter (htmlmode = 8) if (($limit > 0) && (strlen($link) > 23) && ($htmlmode == 8)) { $limit = $limit - 23 + strlen($link); } $link = ""; if ($post["type"] == "text") { unset($post["url"]); } } } } if ($limit > 0) { // Reduce multiple spaces // When posted to a network with limited space, we try to gain space where possible while (strpos($msg, " ") !== false) { $msg = str_replace(" ", " ", $msg); } // Twitter is using its own limiter, so we always assume that shortened links will have this length if (iconv_strlen($link, "UTF-8") > 0) { $limit = $limit - 23; } if (iconv_strlen($msg, "UTF-8") > $limit) { if (($post["type"] == "text") && isset($post["url"])) { $post["url"] = $b["plink"]; } elseif (!isset($post["url"])) { $limit = $limit - 23; $post["url"] = $b["plink"]; // Which purpose has this line? It is now uncommented, but left as a reminder //} elseif (strpos($b["body"], "[share") !== false) { // $post["url"] = $b["plink"]; } elseif (PConfig::get($b["uid"], "system", "no_intelligent_shortening")) { $post["url"] = $b["plink"]; } $msg = Plaintext::shorten($msg, $limit); } } $post["text"] = trim($msg); return($post); } public static function scaleExternalImages($srctext, $include_link = true, $scale_replace = false) { // Suppress "view full size" if (intval(Config::get('system', 'no_view_full_size'))) { $include_link = false; } // Picture addresses can contain special characters $s = htmlspecialchars_decode($srctext); $matches = null; $c = preg_match_all('/\[img.*?\](.*?)\[\/img\]/ism', $s, $matches, PREG_SET_ORDER); if ($c) { foreach ($matches as $mtch) { logger('scale_external_image: ' . $mtch[1]); $hostname = str_replace('www.', '', substr(System::baseUrl(), strpos(System::baseUrl(), '://') + 3)); if (stristr($mtch[1], $hostname)) { continue; } // $scale_replace, if passed, is an array of two elements. The // first is the name of the full-size image. The second is the // name of a remote, scaled-down version of the full size image. // This allows Friendica to display the smaller remote image if // one exists, while still linking to the full-size image if ($scale_replace) { $scaled = str_replace($scale_replace[0], $scale_replace[1], $mtch[1]); } else { $scaled = $mtch[1]; } $i = Network::fetchUrl($scaled); if (!$i) { return $srctext; } // guess mimetype from headers or filename $type = Image::guessType($mtch[1], true); if ($i) { $Image = new Image($i, $type); if ($Image->isValid()) { $orig_width = $Image->getWidth(); $orig_height = $Image->getHeight(); if ($orig_width > 640 || $orig_height > 640) { $Image->scaleDown(640); $new_width = $Image->getWidth(); $new_height = $Image->getHeight(); logger('scale_external_images: ' . $orig_width . '->' . $new_width . 'w ' . $orig_height . '->' . $new_height . 'h' . ' match: ' . $mtch[0], LOGGER_DEBUG); $s = str_replace( $mtch[0], '[img=' . $new_width . 'x' . $new_height. ']' . $scaled . '[/img]' . "\n" . (($include_link) ? '[url=' . $mtch[1] . ']' . L10n::t('view full size') . '[/url]' . "\n" : ''), $s ); logger('scale_external_images: new string: ' . $s, LOGGER_DEBUG); } } } } } // replace the special char encoding $s = htmlspecialchars($s, ENT_NOQUOTES, 'UTF-8'); return $s; } /** * The purpose of this function is to apply system message length limits to * imported messages without including any embedded photos in the length * * @brief Truncates imported message body string length to max_import_size * @param string $body * @return string */ public static function limitBodySize($body) { $maxlen = get_max_import_size(); // If the length of the body, including the embedded images, is smaller // than the maximum, then don't waste time looking for the images if ($maxlen && (strlen($body) > $maxlen)) { logger('the total body length exceeds the limit', LOGGER_DEBUG); $orig_body = $body; $new_body = ''; $textlen = 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; $img_end += strlen('[/img]'); if (!strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) { // This is an embedded image if (($textlen + $img_start) > $maxlen) { if ($textlen < $maxlen) { logger('the limit happens before an embedded image', LOGGER_DEBUG); $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen); $textlen = $maxlen; } } else { $new_body = $new_body . substr($orig_body, 0, $img_start); $textlen += $img_start; } $new_body = $new_body . substr($orig_body, $img_start, $img_end - $img_start); } else { if (($textlen + $img_end) > $maxlen) { if ($textlen < $maxlen) { logger('the limit happens before the end of a non-embedded image', LOGGER_DEBUG); $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen); $textlen = $maxlen; } } else { $new_body = $new_body . substr($orig_body, 0, $img_end); $textlen += $img_end; } } $orig_body = substr($orig_body, $img_end); if ($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, $img_start), '[/img]') : false); } if (($textlen + strlen($orig_body)) > $maxlen) { if ($textlen < $maxlen) { logger('the limit happens after the end of the last image', LOGGER_DEBUG); $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen); } } else { logger('the text size with embedded images extracted did not violate the limit', LOGGER_DEBUG); $new_body = $new_body . $orig_body; } return $new_body; } else { 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) { $return = self::convertUrlForOStatus($data["url"]); } elseif (($simplehtml != 4) && ($simplehtml != 0)) { $return = sprintf('%s
', $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('
', $data["type"]); } if ($data["image"] != "") { $return .= sprintf('
', $data["url"], proxy_url($data["image"]), $data["title"]); } elseif ($data["preview"] != "") { $return .= sprintf('
', $data["url"], proxy_url($data["preview"]), $data["title"]); } if (($data["type"] == "photo") && ($data["url"] != "") && ($data["image"] != "")) { $return .= sprintf('', $data["url"], proxy_url($data["image"]), $data["title"]); } else { $return .= sprintf('

%s

', $data['url'], $data['title']); } if ($data["description"] != "" && $data["description"] != $data["title"]) { // Sanitize the HTML by converting it to BBCode $bbcode = HTML::toBBCode($data["description"]); $return .= sprintf('
%s
', trim(self::convert($bbcode))); } if ($data["type"] == "link") { $return .= sprintf('%s', $data['url'], parse_url($data['url'], PHP_URL_HOST)); } if ($simplehtml != 4) { $return .= '
'; } } } return trim($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"]; } /** * 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 $match Array with the matching values * @return string reformatted link including HTML codes */ private static function convertUrlForOStatusCallback($match) { $url = $match[1]; if (isset($match[2]) && ($match[1] != $match[2])) { return $match[0]; } $parts = parse_url($url); if (!isset($parts['scheme'])) { return $match[0]; } return self::convertUrlForOStatus($url); } /** * @brief Converts [url] BBCodes in a format that looks fine on OStatus systems. * @param string $url URL that is about to be reformatted * @return string reformatted link including HTML codes */ private static function convertUrlForOStatus($url) { $parts = parse_url($url); $scheme = $parts['scheme'] . '://'; $styled_url = str_replace($scheme, '', $url); if (strlen($styled_url) > 30) { $styled_url = substr($styled_url, 0, 30) . "…"; } $html = '%s'; return sprintf($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' . $cnt . '#$]', '' . 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 != "") { $preshare .= "
"; } switch ($simplehtml) { case 1: $text = $preshare . html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8') . ' ' . $userid . ":
»" . $share[3] . "«"; break; case 2: $text = $preshare . html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8') . ' ' . $userid_compact . ":
" . $share[3]; break; case 3: // Diaspora $headline = '' . html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8') . $userid . ':
'; $text = trim($share[1]); if ($text != "") { $text .= "
"; } if (stripos(normalise_link($link), 'http://twitter.com/') === 0) { $text .= '
' . $link . ''; } else { $text .= $headline . '
' . trim($share[3]) . "

"; if ($link != "") { $text .= '
[l]'; } } break; case 4: $headline = '
' . html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8'); $headline .= L10n::t('%2$s %3$s', $link, $userid, $posted); $headline .= ":
"; $text = trim($share[1]); if ($text != "") { $text .= "
"; } $text .= $headline . '
' . trim($share[3]) . "

"; break; case 5: $text = $preshare . html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8') . ' ' . $userid_compact . ":
" . $share[3]; break; case 6: // app.net $text = $preshare . ">> @" . $userid_compact . ":
" . $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 . ":
" . $share[3]; if ($link != "") { $text .= "

" . $link; } break; default: // Transforms quoted tweets in rich attachments to avoid nested tweets if (stripos(normalise_link($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 = self::getApp(); $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 = self::getApp(); $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($match[1]), ['php', 'css', 'mysql', 'sql', 'abap', 'diff', 'html', 'perl', 'ruby', 'vbscript', 'avrc', 'dtd', 'java', 'xml', 'cpp', 'python', 'javascript', 'js', 'sh', 'bash']) ) { return text_highlight($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 = self::getApp(); /* * 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. $ev = Event::fromBBCode($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
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::convertUrlForOStatusCallback', $text); $text = preg_replace_callback("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", 'self::convertUrlForOStatusCallback', $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"], ['
', '
'], $text); // Remove all hashtag addresses if ((!$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", '@$3', $text); } elseif ($simple_html == 7) { $text = preg_replace("/([@!])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '$1$3', $text); } elseif (!$simple_html) { $text = preg_replace("/([@!])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '$1$3', $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$3', $text); $text = preg_replace("/\[url\=([$URLSearchString]*)\]#(.*?)\[\/url\]/ism", '#$2', $text); $text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/ism", '$1', $text); $text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '$2', $text); //$Text = preg_replace("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", '$2', $Text); // Red compatibility, though the link can't be authenticated on Friendica $text = preg_replace("/\[zrl\=([$URLSearchString]*)\](.*?)\[\/zrl\]/ism", '$2', $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})/', 'acct:$1@$2', $text); // Perform MAIL Search $text = preg_replace("/\[mail\]([$MAILSearchString]*)\[\/mail\]/", '$1', $text); $text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '$2', $text); // leave open the posibility of [map=something] // this is replaced in prepare_body() which has knowledge of the item location if (strpos($text, '[/map]') !== false) { $text = preg_replace_callback( "/\[map\](.*?)\[\/map\]/ism", function ($match) use ($simple_html) { return str_replace($match[0], '

' . Map::byLocation($match[1], $simple_html) . '

', $match[0]); }, $text ); } if (strpos($text, '[map=') !== false) { $text = preg_replace_callback( "/\[map=(.*?)\]/ism", function ($match) use ($simple_html) { return str_replace($match[0], '

' . Map::byCoordinates(str_replace('/', ' ', $match[1]), $simple_html) . '

', $match[0]); }, $text ); } if (strpos($text, '[map]') !== false) { $text = preg_replace("/\[map\]/", '

', $text); } // Check for headers $text = preg_replace("(\[h1\](.*?)\[\/h1\])ism", '

$1

', $text); $text = preg_replace("(\[h2\](.*?)\[\/h2\])ism", '

$1

', $text); $text = preg_replace("(\[h3\](.*?)\[\/h3\])ism", '

$1

', $text); $text = preg_replace("(\[h4\](.*?)\[\/h4\])ism", '

$1

', $text); $text = preg_replace("(\[h5\](.*?)\[\/h5\])ism", '
$1
', $text); $text = preg_replace("(\[h6\](.*?)\[\/h6\])ism", '
$1
', $text); // Check for paragraph $text = preg_replace("(\[p\](.*?)\[\/p\])ism", '

$1

', $text); // Check for bold text $text = preg_replace("(\[b\](.*?)\[\/b\])ism", '$1', $text); // Check for Italics text $text = preg_replace("(\[i\](.*?)\[\/i\])ism", '$1', $text); // Check for Underline text $text = preg_replace("(\[u\](.*?)\[\/u\])ism", '$1', $text); // Check for strike-through text $text = preg_replace("(\[s\](.*?)\[\/s\])ism", '$1', $text); // Check for over-line text $text = preg_replace("(\[o\](.*?)\[\/o\])ism", '$1', $text); // Check for colored text $text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])ism", "$2", $text); // Check for sized text // [size=50] --> font-size: 50px (with the unit). $text = preg_replace("(\[size=(\d*?)\](.*?)\[\/size\])ism", "$2", $text); $text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])ism", "$2", $text); // Check for centered text $text = preg_replace("(\[center\](.*?)\[\/center\])ism", "
$1
", $text); // Check for list text $text = str_replace("[*]", "
  • ", $text); // Check for style sheet commands $text = preg_replace_callback( "(\[style=(.*?)\](.*?)\[\/style\])ism", function ($match) { return "" . $match[2] . ""; }, $text ); // Check for CSS classes $text = preg_replace_callback( "(\[class=(.*?)\](.*?)\[\/class\])ism", function ($match) { return "" . $match[2] . ""; }, $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", '', $text); $text = preg_replace("/\[list=\](.*?)\[\/list\]/ism", '', $text); $text = preg_replace("/\[list=1\](.*?)\[\/list\]/ism", '', $text); $text = preg_replace("/\[list=((?-i)i)\](.*?)\[\/list\]/ism", '', $text); $text = preg_replace("/\[list=((?-i)I)\](.*?)\[\/list\]/ism", '', $text); $text = preg_replace("/\[list=((?-i)a)\](.*?)\[\/list\]/ism", '', $text); $text = preg_replace("/\[list=((?-i)A)\](.*?)\[\/list\]/ism", '', $text); $text = preg_replace("/\[ul\](.*?)\[\/ul\]/ism", '', $text); $text = preg_replace("/\[ol\](.*?)\[\/ol\]/ism", '', $text); $text = preg_replace("/\[li\](.*?)\[\/li\]/ism", '
  • $1
  • ', $text); } $text = preg_replace("/\[th\](.*?)\[\/th\]/sm", '$1', $text); $text = preg_replace("/\[td\](.*?)\[\/td\]/sm", '$1', $text); $text = preg_replace("/\[tr\](.*?)\[\/tr\]/sm", '$1', $text); $text = preg_replace("/\[table\](.*?)\[\/table\]/sm", '$1
    ', $text); $text = preg_replace("/\[table border=1\](.*?)\[\/table\]/sm", '$1
    ', $text); $text = preg_replace("/\[table border=0\](.*?)\[\/table\]/sm", '$1
    ', $text); $text = str_replace('[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", "$2", $text); // Declare the format for [code] layout $CodeLayout = '$1'; // Check for [code] text $text = preg_replace("/\[code\](.*?)\[\/code\]/ism", "$CodeLayout", $text); // Declare the format for [spoiler] layout $SpoilerLayout = '
    $1
    '; // 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", "
    " . $t_wrote . "
    $2
    ", $text); } // Declare the format for [quote] layout $QuoteLayout = '
    $1
    '; // 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", "

    " . $t_wrote . "

    $2
    ", $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", '', $text); $text = preg_replace("/\[zmg\=([0-9]*)x([0-9]*)\](.*?)\[\/zmg\]/ism", '', $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", '' . L10n::t('Image/photo') . '', $text); $text = preg_replace("/\[zmg\](.*?)\[\/zmg\]/ism", '' . 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", '
    ' . L10n::t('Encrypted content') . '
    ', $text); $text = preg_replace("/\[crypt(.*?)\](.*?)\[\/crypt\]/ism", '
    ' . L10n::t('Encrypted content') . '
    ', $text); //$Text = preg_replace("/\[crypt=(.*?)\](.*?)\[\/crypt\]/ism", '
    ' . L10n::t('Encrypted content') . '
    ', $Text); // Try to Oembed if ($try_oembed) { $text = preg_replace("/\[video\](.*?\.(ogg|ogv|oga|ogm|webm|mp4))\[\/video\]/ism", '', $text); $text = preg_replace("/\[audio\](.*?\.(ogg|ogv|oga|ogm|webm|mp4|mp3))\[\/audio\]/ism", '', $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("/\[video\](.*?)\[\/video\]/", '$1', $text); $text = preg_replace("/\[audio\](.*?)\[\/audio\]/", '$1', $text); } // html5 video and audio if ($try_oembed) { $text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '', $text); } else { $text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '$1', $text); } // Youtube extensions if ($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", '', $text); } else { $text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism", 'https://www.youtube.com/watch?v=$1', $text); } if ($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", '', $text); } else { $text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", 'https://vimeo.com/$1', $text); } // oembed tag $text = OEmbed::BBCode2HTML($text); // Avoid triple linefeeds through oembed $text = str_replace("


    ", "

    ", $text); // If we found an event earlier, strip out all the event code and replace with a reformatted version. // Replace the event-start section with the entire formatted event. The other bbcode is stripped. // Summary (e.g. title) is required, earlier revisions only required description (in addition to // start which is always required). Allow desc with a missing summary for compatibility. if ((x($ev, 'desc') || x($ev, 'summary')) && x($ev, 'start')) { $sub = Event::getHTML($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 $text = preg_replace_callback("|(?!]*>)([^<]*)(?!]*>)|ism", function ($match) use ($simple_html) { $return = '' . $match[1] . ''; // Use for Diaspora inline code blocks if ($simple_html === 3) { $return = '' . $match[1] . ''; } 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 = ''; $encoding = ''; @$doc->loadHTML($encoding.$doctype."".$text.""); $doc->encoding = 'UTF-8'; $text = $doc->saveHTML(); $text = str_replace(["", "", $doctype, $encoding], ["", "", "", ""], $text); $text = str_replace('
    ', '', $text); //$Text = mb_convert_encoding($Text, "UTF-8", 'HTML-ENTITIES'); } // Clean up some useless linebreaks in lists //$Text = str_replace('

    ', '', $Text); //$Text = str_replace('
    ', '', $Text); //$Text = str_replace('
  • ', '
  • ', $Text); //$Text = str_replace('
    "], ["
    "], $text); $stamp1 = microtime(true); // Now convert HTML to Markdown $converter = new HtmlConverter(); $text = $converter->convert($text); // unmask the special chars back to HTML $text = str_replace(['&\_lt\_;', '&\_gt\_;', '&\_amp\_;'], ['<', '>', '&'], $text); $a->save_timestamp($stamp1, "parser"); // Libertree has a problem with escaped hashtags. $text = str_replace(['\#'], ['#'], $text); // Remove any leading or trailing whitespace, as this will mess up // the Diaspora signature verification and cause the item to disappear $text = trim($text); if ($for_diaspora) { $url_search_string = "^\[\]"; $text = preg_replace_callback( "/([@]\[(.*?)\])\(([$url_search_string]*?)\)/ism", ['self', 'bbCodeMention2DiasporaCallback'], $text ); } // Restore code blocks $text = preg_replace_callback('/#codeblock-([0-9]+)#/iU', function ($matches) use ($codeblocks) { $return = ''; if (isset($codeblocks[intval($matches[1])])) { $return = $codeblocks[$matches[1]]; } return $return; }, $text ); Addon::callHooks('bb2diaspora', $text); return $text; } }