167 lines
4.1 KiB
PHP
167 lines
4.1 KiB
PHP
<?php
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/**
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* @file mod/parse_url.php
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* @brief The parse_url module
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*
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* This module does parse an url for embeddable content (audio, video, image files or link)
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* information and does format this information to BBCode
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*
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* @see ParseUrl::getSiteinfo() for more information about scraping embeddable content
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*/
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use Friendica\App;
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use Friendica\Core\Addon;
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use Friendica\Core\Logger;
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use Friendica\Util\Network;
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use Friendica\Util\ParseUrl;
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require_once 'include/items.php';
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function parse_url_content(App $a)
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{
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$text = null;
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$str_tags = '';
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$br = "\n";
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if (!empty($_GET['binurl'])) {
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$url = trim(hex2bin($_GET['binurl']));
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} else {
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$url = trim($_GET['url']);
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}
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if (!empty($_GET['title'])) {
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$title = strip_tags(trim($_GET['title']));
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}
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if (!empty($_GET['description'])) {
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$text = strip_tags(trim($_GET['description']));
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}
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if (!empty($_GET['tags'])) {
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$arr_tags = ParseUrl::convertTagsToArray($_GET['tags']);
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if (count($arr_tags)) {
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$str_tags = $br . implode(' ', $arr_tags) . $br;
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}
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}
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// Add url scheme if it is missing
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$arrurl = parse_url($url);
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if (!x($arrurl, 'scheme')) {
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if (x($arrurl, 'host')) {
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$url = 'http:' . $url;
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} else {
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$url = 'http://' . $url;
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}
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}
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Logger::log($url);
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// Check if the URL is an image, video or audio file. If so format
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// the URL with the corresponding BBCode media tag
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$redirects = 0;
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// Fetch the header of the URL
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$curlResponse = Network::curl($url, false, $redirects, ['novalidate' => true, 'nobody' => true]);
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if ($curlResponse->isSuccess()) {
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// Convert the header fields into an array
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$hdrs = [];
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$h = explode("\n", $curlResponse->getHeader());
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foreach ($h as $l) {
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$header = array_map('trim', explode(':', trim($l), 2));
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if (count($header) == 2) {
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list($k, $v) = $header;
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$hdrs[$k] = $v;
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}
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}
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$type = null;
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if (array_key_exists('Content-Type', $hdrs)) {
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$type = $hdrs['Content-Type'];
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}
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if ($type) {
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if (stripos($type, 'image/') !== false) {
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echo $br . '[img]' . $url . '[/img]' . $br;
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exit();
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}
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if (stripos($type, 'video/') !== false) {
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echo $br . '[video]' . $url . '[/video]' . $br;
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exit();
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}
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if (stripos($type, 'audio/') !== false) {
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echo $br . '[audio]' . $url . '[/audio]' . $br;
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exit();
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}
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}
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}
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$template = '[bookmark=%s]%s[/bookmark]%s';
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$arr = ['url' => $url, 'text' => ''];
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Addon::callHooks('parse_link', $arr);
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if (strlen($arr['text'])) {
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echo $arr['text'];
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exit();
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}
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// If there is already some content information submitted we don't
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// need to parse the url for content.
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if (!empty($url) && !empty($title) && !empty($text)) {
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$title = str_replace(["\r", "\n"], ['', ''], $title);
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$text = '[quote]' . trim($text) . '[/quote]' . $br;
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$result = sprintf($template, $url, ($title) ? $title : $url, $text) . $str_tags;
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Logger::log('(unparsed): returns: ' . $result);
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echo $result;
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exit();
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}
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// Fetch the information directly from the webpage
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$siteinfo = ParseUrl::getSiteinfo($url);
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unset($siteinfo['keywords']);
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// Bypass attachment if parse url for a comment
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if (!empty($_GET['noAttachment'])) {
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echo $br . '[url=' . $url . ']' . $siteinfo['title'] . '[/url]';
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exit();
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}
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// Format it as BBCode attachment
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$info = add_page_info_data($siteinfo);
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echo $info;
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exit();
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}
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/**
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* @brief Legacy function to call ParseUrl::getSiteinfoCached
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*
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* Note: We have moved the function to ParseUrl.php. This function is only for
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* legacy support and will be remove in the future
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*
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* @param type $url The url of the page which should be scraped
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* @param type $no_guessing If true the parse doens't search for
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* preview pictures
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* @param type $do_oembed The false option is used by the function fetch_oembed()
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* to avoid endless loops
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*
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* @return array which contains needed data for embedding
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*
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* @see ParseUrl::getSiteinfoCached()
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*
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* @todo Remove this function after all Addons has been changed to use
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* ParseUrl::getSiteinfoCached
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*/
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function parseurl_getsiteinfo_cached($url, $no_guessing = false, $do_oembed = true)
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{
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$siteinfo = ParseUrl::getSiteinfoCached($url, $no_guessing, $do_oembed);
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return $siteinfo;
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}
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