<?php /** * @file include/plaintext.php */ use Friendica\App; use Friendica\ParseUrl; require_once("include/Photo.php"); require_once("include/bbcode.php"); require_once("include/html2plain.php"); require_once("include/network.php"); /** * @brief Fetches attachment data that were generated the old way * * @param string $body Message body * @return array * 'type' -> Message type ("link", "video", "photo") * 'text' -> Text before the shared message * 'after' -> Text after the shared message * 'image' -> Preview image of the message * 'url' -> Url to the attached message * 'title' -> Title of the attachment * 'description' -> Description of the attachment */ function get_old_attachment_data($body) { $post = array(); // 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], array("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)) { $picturedata = get_photo_info($matches[1]); 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"], array("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 $body Message body * @return array * 'type' -> Message type ("link", "video", "photo") * 'text' -> Text before the shared message * 'after' -> Text after the shared message * 'image' -> Preview image of the message * 'url' -> Url to the attached message * 'title' -> Title of the attachment * 'description' -> Description of the attachment */ function get_attachment_data($body) { $data = array(); if (!preg_match("/(.*)\[attachment(.*?)\](.*?)\[\/attachment\](.*)/ism", $body, $match)) return get_old_attachment_data($body); $attributes = $match[2]; $data["text"] = trim($match[1]); $type = ""; preg_match("/type='(.*?)'/ism", $attributes, $matches); if ($matches[1] != "") $type = strtolower($matches[1]); preg_match('/type="(.*?)"/ism', $attributes, $matches); if ($matches[1] != "") $type = strtolower($matches[1]); if ($type == "") return(array()); if (!in_array($type, array("link", "audio", "photo", "video"))) return(array()); if ($type != "") $data["type"] = $type; $url = ""; preg_match("/url='(.*?)'/ism", $attributes, $matches); if ($matches[1] != "") $url = $matches[1]; preg_match('/url="(.*?)"/ism', $attributes, $matches); if ($matches[1] != "") $url = $matches[1]; if ($url != "") $data["url"] = html_entity_decode($url, ENT_QUOTES, 'UTF-8'); $title = ""; preg_match("/title='(.*?)'/ism", $attributes, $matches); if ($matches[1] != "") $title = $matches[1]; preg_match('/title="(.*?)"/ism', $attributes, $matches); if ($matches[1] != "") $title = $matches[1]; if ($title != "") { $title = bbcode(html_entity_decode($title, ENT_QUOTES, 'UTF-8'), false, false, true); $title = html_entity_decode($title, ENT_QUOTES, 'UTF-8'); $title = str_replace(array("[", "]"), array("[", "]"), $title); $data["title"] = $title; } $image = ""; preg_match("/image='(.*?)'/ism", $attributes, $matches); if ($matches[1] != "") $image = $matches[1]; preg_match('/image="(.*?)"/ism', $attributes, $matches); if ($matches[1] != "") $image = $matches[1]; if ($image != "") $data["image"] = html_entity_decode($image, ENT_QUOTES, 'UTF-8'); $preview = ""; preg_match("/preview='(.*?)'/ism", $attributes, $matches); if ($matches[1] != "") $preview = $matches[1]; preg_match('/preview="(.*?)"/ism', $attributes, $matches); if ($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($data); } function get_attached_data($body) { /* - text: - type: link, video, photo - title: - url: - image: - description: - (thumbnail) */ $post = get_attachment_data($body); // if nothing is found, it maybe having an image. if (!isset($post["type"])) { $URLSearchString = "^\[\]"; if (preg_match_all("(\[url=([$URLSearchString]*)\]\s*\[img\]([$URLSearchString]*)\[\/img\]\s*\[\/url\])ism", $body, $pictures, PREG_SET_ORDER)) { if (count($pictures) == 1) { // 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 { $imgdata = get_photo_info($pictures[0][1]); if (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) > 1) { $post["type"] = "link"; $post["url"] = $b["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) { $post["type"] = "photo"; $post["image"] = $pictures[0][1]; $post["text"] = str_replace($pictures[0][0], "", $body); } elseif (count($pictures) > 1) { $post["type"] = "link"; $post["url"] = $b["plink"]; $post["image"] = $pictures[0][1]; $post["text"] = $body; } } if (preg_match_all("(\[url\]([$URLSearchString]*)\[\/url\])ism", $body, $links, PREG_SET_ORDER)) { if (count($links) == 1) { $post["type"] = "text"; $post["url"] = $links[0][1]; $post["text"] = $body; } } if (!isset($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); } function shortenmsg($msg, $limit, $twitter = false) { /// @TODO /// For Twitter URLs aren't shortened, but they have to be calculated as if. $lines = explode("\n", $msg); $msg = ""; $recycle = html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8'); $ellipsis = html_entity_decode("…", ENT_QUOTES, 'UTF-8'); foreach ($lines AS $row=>$line) { if (iconv_strlen(trim($msg."\n".$line), "UTF-8") <= $limit) $msg = trim($msg."\n".$line); // Is the new message empty by now or is it a reshared message? elseif (($msg == "") || (($row == 1) && (substr($msg, 0, 4) == $recycle))) $msg = iconv_substr(iconv_substr(trim($msg."\n".$line), 0, $limit, "UTF-8"), 0, -3, "UTF-8").$ellipsis; else break; } return($msg); } /** * @brief Convert a message into plaintext for connectors to other networks * * @param App $a The application class * @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 */ function plaintext(App $a, $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 $body = remove_abstract($body); // At first look at data that is attached via "type-..." stuff // This will hopefully replaced with a dedicated bbcode later //$post = get_attached_data($b["body"]); $post = get_attached_data($body); 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 != "") { $default_abstract = fetch_abstract($b["body"]); $abstract = fetch_abstract($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: $abstract = fetch_abstract($b["body"], NETWORK_TWITTER); break; case 7: $abstract = fetch_abstract($b["body"], NETWORK_STATUSNET); break; case 6: $abstract = fetch_abstract($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"]); } if ($abstract != "") { $post["text"] = $abstract; if ($post["type"] == "text") { $post["type"] = "link"; $post["url"] = $b["plink"]; } } $html = bbcode($post["text"].$post["after"], false, false, $htmlmode); $msg = html2plain($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"] = $b["plink"]; } elseif (strpos($b["body"], "[share") !== false) $post["url"] = $b["plink"]; elseif (get_pconfig($b["uid"], "system", "no_intelligent_shortening")) $post["url"] = $b["plink"]; $msg = shortenmsg($msg, $limit); } } $post["text"] = trim($msg); return($post); }