152 lines
3.7 KiB
PHP
152 lines
3.7 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 embedable content (audio, video, image files or link)
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* information and does format this information to BBCode or html (this depends
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* on the user settings - default is BBCode output).
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* If the user has enabled the richtext editor setting the output will be in html
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* (Note: This is not always possible and in some case not useful because
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* the richtext editor doesn't support all kind of html).
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* Otherwise the output will be constructed 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\ParseUrl;
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require_once("include/items.php");
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function parse_url_content(&$a) {
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$text = null;
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$str_tags = "";
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$textmode = false;
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if (local_user() && (!feature_enabled(local_user(), "richtext"))) {
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$textmode = true;
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}
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$br = (($textmode) ? "\n" : "<br />");
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if (x($_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 ($_GET["title"]) {
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$title = strip_tags(trim($_GET["title"]));
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}
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if ($_GET["description"]) {
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$text = strip_tags(trim($_GET["description"]));
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}
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if ($_GET["tags"]) {
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$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("prse_url: " . $url);
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// Check if the URL is an image, video or audio file. If so format
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// the URL with the corresponding BBCode media tag
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$redirects = 0;
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// Fetch the header of the URL
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$result = z_fetch_url($url, false, $redirects, array("novalidate" => true, "nobody" => true));
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if($result["success"]) {
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// Convert the header fields into an array
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$hdrs = array();
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$h = explode("\n", $result["header"]);
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foreach ($h as $l) {
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list($k,$v) = array_map("trim", explode(":", trim($l), 2));
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$hdrs[$k] = $v;
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}
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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]" . $br;
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killme();
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}
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if (stripos($type, "video/") !== false) {
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echo $br . "[video]" . $url . "[/video]" . $br;
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killme();
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}
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if (stripos($type, "audio/") !== false) {
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echo $br . "[audio]" . $url . "[/audio]" . $br;
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killme();
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}
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}
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}
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if ($textmode) {
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$template = "[bookmark=%s]%s[/bookmark]%s";
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} else {
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$template = "<a class=\"bookmark\" href=\"%s\" >%s</a>%s";
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}
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$arr = array("url" => $url, "text" => "");
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call_hooks("parse_link", $arr);
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if (strlen($arr["text"])) {
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echo $arr["text"];
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killme();
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}
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// If there is allready some content information submitted we don't
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// need to parse the url for content.
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if ($url && $title && $text) {
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$title = str_replace(array("\r","\n"),array("",""),$title);
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if ($textmode) {
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$text = "[quote]" . trim($text) . "[/quote]" . $br;
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} else {
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$text = "<blockquote>" . htmlspecialchars(trim($text)) . "</blockquote><br />";
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$title = htmlspecialchars($title);
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}
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$result = sprintf($template, $url, ($title) ? $title : $url, $text) . $str_tags;
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logger("parse_url (unparsed): returns: " . $result);
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echo $result;
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killme();
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}
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// Fetch the information directly from the webpage
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$siteinfo = ParseUrl::getSiteinfo($url);
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unset($siteinfo["keywords"]);
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// Format it as BBCode attachment
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$info = add_page_info_data($siteinfo);
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if (!$textmode) {
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// Replace ' with ’ - not perfect - but the richtext editor has problems otherwise
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$info = str_replace(array("'"), array("’"), $info);
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}
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echo $info;
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killme();
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}
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