<?php /** * @copyright Copyright (C) 2020, Friendica * * @license GNU AGPL version 3 or any later version * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <https://www.gnu.org/licenses/>. * * This module does parse an url for embeddable content (audio, video, image files or link) * information and does format this information to BBCode * * @see ParseUrl::getSiteinfo() for more information about scraping embeddable content */ use Friendica\App; use Friendica\Content\PageInfo; use Friendica\Core\Hook; use Friendica\Core\Logger; use Friendica\Core\System; use Friendica\Util\Network; use Friendica\Util\ParseUrl; use Friendica\Util\Strings; function parse_url_content(App $a) { $text = null; $str_tags = ''; $format = ''; $ret= ['success' => false, 'contentType' => '']; $br = "\n"; if (!empty($_GET['binurl']) && Strings::isHex($_GET['binurl'])) { $url = trim(hex2bin($_GET['binurl'])); } elseif (!empty($_GET['url'])) { $url = trim($_GET['url']); // fallback in case no url is valid } else { Logger::info('No url given'); exit(); } if (!empty($_GET['title'])) { $title = strip_tags(trim($_GET['title'])); } if (!empty($_GET['description'])) { $text = strip_tags(trim($_GET['description'])); } if (!empty($_GET['tags'])) { $arr_tags = ParseUrl::convertTagsToArray($_GET['tags']); if (count($arr_tags)) { $str_tags = $br . implode(' ', $arr_tags) . $br; } } if (isset($_GET['format']) && $_GET['format'] == 'json') { $format = 'json'; } // Add url scheme if it is missing $arrurl = parse_url($url); if (empty($arrurl['scheme'])) { if (!empty($arrurl['host'])) { $url = 'http:' . $url; } else { $url = 'http://' . $url; } } Logger::log($url); // Check if the URL is an image, video or audio file. If so format // the URL with the corresponding BBCode media tag // Fetch the header of the URL $curlResponse = Network::curl($url, false, ['novalidate' => true, 'nobody' => true]); if ($curlResponse->isSuccess()) { // Convert the header fields into an array $hdrs = []; $h = explode("\n", $curlResponse->getHeader()); foreach ($h as $l) { $header = array_map('trim', explode(':', trim($l), 2)); if (count($header) == 2) { list($k, $v) = $header; $hdrs[$k] = $v; } } $type = null; $content_type = ''; $bbcode = ''; if (array_key_exists('Content-Type', $hdrs)) { $type = $hdrs['Content-Type']; } if ($type) { if (stripos($type, 'image/') !== false) { $content_type = 'image'; $bbcode = $br . '[img]' . $url . '[/img]' . $br; } if (stripos($type, 'video/') !== false) { $content_type = 'video'; $bbcode = $br . '[video]' . $url . '[/video]' . $br; } if (stripos($type, 'audio/') !== false) { $content_type = 'audio'; $bbcode = $br . '[audio]' . $url . '[/audio]' . $br; } } if (!empty($content_type)) { if ($format == 'json') { $ret['contentType'] = $content_type; $ret['data'] = ['url' => $url]; $ret['success'] = true; System::jsonExit($ret); } echo $bbcode; exit(); } } $template = '[bookmark=%s]%s[/bookmark]%s'; $arr = ['url' => $url, 'text' => '']; Hook::callAll('parse_link', $arr); if (strlen($arr['text'])) { echo $arr['text']; exit(); } // If there is already some content information submitted we don't // need to parse the url for content. if (!empty($url) && !empty($title) && !empty($text)) { $title = str_replace(["\r", "\n"], ['', ''], $title); $text = '[quote]' . trim($text) . '[/quote]' . $br; $result = sprintf($template, $url, ($title) ? $title : $url, $text) . $str_tags; Logger::log('(unparsed): returns: ' . $result); echo $result; exit(); } // Fetch the information directly from the webpage $siteinfo = ParseUrl::getSiteinfo($url); unset($siteinfo['keywords']); // Bypass attachment if parse url for a comment if (!empty($_GET['noAttachment'])) { echo $br . '[url=' . $url . ']' . $siteinfo['title'] . '[/url]'; exit(); } if ($format == 'json') { $ret['data'] = $siteinfo; $ret['contentType'] = 'attachment'; $ret['success'] = true; System::jsonExit($ret); } // Format it as BBCode attachment $info = "\n" . PageInfo::getFooterFromData($siteinfo); echo $info; exit(); } /** * Legacy function to call ParseUrl::getSiteinfoCached * * Note: We have moved the function to ParseUrl.php. This function is only for * legacy support and will be remove in the future * * @param string $url The url of the page which should be scraped * @param bool $no_guessing If true the parse doens't search for * preview pictures * @param bool $do_oembed The false option is used by the function fetch_oembed() * to avoid endless loops * * @return array which contains needed data for embedding * * @throws \Friendica\Network\HTTPException\InternalServerErrorException * @see ParseUrl::getSiteinfoCached() * * @deprecated since version 3.6 use ParseUrl::getSiteinfoCached instead */ function parseurl_getsiteinfo_cached($url, $no_guessing = false, $do_oembed = true) { $siteinfo = ParseUrl::getSiteinfoCached($url, $no_guessing, $do_oembed); return $siteinfo; }