+++ /dev/null
-<?php
-
-/**
- * @file include/oembed.php
- */
-
-use Friendica\App;
-use Friendica\Core\Cache;
-use Friendica\Core\System;
-use Friendica\ParseUrl;
-use Friendica\Core\Config;
-use Friendica\Database\DBM;
-
-function oembed_replacecb($matches){
- $embedurl=$matches[1];
- $j = oembed_fetch_url($embedurl);
- $s = oembed_format_object($j);
-
- return $s;
-}
-
-/**
- * @brief Get data from an URL to embed its content.
- *
- * @param string $embedurl The URL from which the data should be fetched.
- * @param bool $no_rich_type If set to true rich type content won't be fetched.
- *
- * @return bool|object Returns object with embed content or false if no embedable
- * content exists
- */
-function oembed_fetch_url($embedurl, $no_rich_type = false) {
- $embedurl = trim($embedurl, "'");
- $embedurl = trim($embedurl, '"');
-
- $a = get_app();
-
- $condition = array('url' => normalise_link($embedurl));
- $r = dba::select('oembed', array('content'), $condition, array('limit' => 1));
-
- if (DBM::is_result($r)) {
- $txt = $r["content"];
- } else {
- $txt = Cache::get($a->videowidth . $embedurl);
- }
- // These media files should now be caught in bbcode.php
- // left here as a fallback in case this is called from another source
-
- $noexts = array("mp3", "mp4", "ogg", "ogv", "oga", "ogm", "webm");
- $ext = pathinfo(strtolower($embedurl), PATHINFO_EXTENSION);
-
-
- if (is_null($txt)) {
- $txt = "";
-
- if (!in_array($ext, $noexts)){
- // try oembed autodiscovery
- $redirects = 0;
- $html_text = fetch_url($embedurl, false, $redirects, 15, "text/*");
- if ($html_text) {
- $dom = @DOMDocument::loadHTML($html_text);
- if ($dom) {
- $xpath = new DOMXPath($dom);
- $attr = "oembed";
- $xattr = oe_build_xpath("class","oembed");
- $entries = $xpath->query("//link[@type='application/json+oembed']");
- foreach ($entries as $e) {
- $href = $e->getAttributeNode("href")->nodeValue;
- $txt = fetch_url($href . '&maxwidth=' . $a->videowidth);
- break;
- }
- $entries = $xpath->query("//link[@type='text/json+oembed']");
- foreach ($entries as $e) {
- $href = $e->getAttributeNode("href")->nodeValue;
- $txt = fetch_url($href . '&maxwidth=' . $a->videowidth);
- break;
- }
- }
- }
- }
-
- $txt = trim($txt);
-
- if ($txt[0] != "{") {
- $txt = '{"type":"error"}';
- } else { //save in cache
- $j = json_decode($txt);
- if ($j->type != "error") {
- dba::insert('oembed', array('url' => normalise_link($embedurl),
- 'content' => $txt, 'created' => datetime_convert()), true);
- }
-
- Cache::set($a->videowidth.$embedurl, $txt, CACHE_DAY);
- }
- }
-
- $j = json_decode($txt);
-
- if (!is_object($j)) {
- return false;
- }
-
- // Always embed the SSL version
- if (isset($j->html)) {
- $j->html = str_replace(array("http://www.youtube.com/", "http://player.vimeo.com/"),
- array("https://www.youtube.com/", "https://player.vimeo.com/"), $j->html);
- }
-
- $j->embedurl = $embedurl;
-
- // If fetching information doesn't work, then improve via internal functions
- if (($j->type == "error") || ($no_rich_type && ($j->type == "rich"))) {
- $data = ParseUrl::getSiteinfoCached($embedurl, true, false);
- $j->type = $data["type"];
-
- if ($j->type == "photo") {
- $j->url = $data["url"];
- //$j->width = $data["images"][0]["width"];
- //$j->height = $data["images"][0]["height"];
- }
-
- if (isset($data["title"])) {
- $j->title = $data["title"];
- }
-
- if (isset($data["text"])) {
- $j->description = $data["text"];
- }
-
- if (is_array($data["images"])) {
- $j->thumbnail_url = $data["images"][0]["src"];
- $j->thumbnail_width = $data["images"][0]["width"];
- $j->thumbnail_height = $data["images"][0]["height"];
- }
- }
-
- call_hooks('oembed_fetch_url', $embedurl, $j);
-
- return $j;
-}
-
-function oembed_format_object($j){
- require_once("mod/proxy.php");
-
- $embedurl = $j->embedurl;
- $jhtml = oembed_iframe($j->embedurl,(isset($j->width) ? $j->width : null), (isset($j->height) ? $j->height : null) );
- $ret="<span class='oembed ".$j->type."'>";
- switch ($j->type) {
- case "video":
- if (isset($j->thumbnail_url)) {
- $tw = (isset($j->thumbnail_width) && intval($j->thumbnail_width)) ? $j->thumbnail_width:200;
- $th = (isset($j->thumbnail_height) && intval($j->thumbnail_height)) ? $j->thumbnail_height:180;
- // make sure we don't attempt divide by zero, fallback is a 1:1 ratio
- $tr = (($th) ? $tw/$th : 1);
-
- $th=120; $tw = $th*$tr;
- $tpl=get_markup_template('oembed_video.tpl');
- $ret.=replace_macros($tpl, array(
- '$baseurl' => System::baseUrl(),
- '$embedurl' => $embedurl,
- '$escapedhtml' => base64_encode($jhtml),
- '$tw' => $tw,
- '$th' => $th,
- '$turl' => $j->thumbnail_url,
- ));
-
- } else {
- $ret=$jhtml;
- }
- //$ret.="<br>";
- break;
- case "photo":
- $ret.= "<img width='".$j->width."' src='".proxy_url($j->url)."'>";
- break;
- case "link":
- break;
- case "rich":
- // not so safe..
- if (!Config::get("system","no_oembed_rich_content")) {
- $ret.= proxy_parse_html($jhtml);
- }
- break;
- }
-
- // add link to source if not present in "rich" type
- if ($j->type!='rich' || !strpos($j->html,$embedurl) ){
- $ret .= "<h4>";
- if (isset($j->title)) {
- if (isset($j->provider_name)) {
- $ret .= $j->provider_name.": ";
- }
-
- $embedlink = (isset($j->title))?$j->title:$embedurl;
- $ret .= "<a href='$embedurl' rel='oembed'>$embedlink</a>";
- if (isset($j->author_name)) {
- $ret.=" (".$j->author_name.")";
- }
- } elseif (isset($j->provider_name) || isset($j->author_name)) {
- $embedlink = "";
- if (isset($j->provider_name)) {
- $embedlink .= $j->provider_name;
- }
-
- if (isset($j->author_name)) {
- if ($embedlink != "") {
- $embedlink .= ": ";
- }
-
- $embedlink .= $j->author_name;
- }
- if (trim($embedlink) == "") {
- $embedlink = $embedurl;
- }
-
- $ret .= "<a href='$embedurl' rel='oembed'>$embedlink</a>";
- }
- //if (isset($j->author_name)) $ret.=" by ".$j->author_name;
- //if (isset($j->provider_name)) $ret.=" on ".$j->provider_name;
- $ret .= "</h4>";
- } else {
- // add <a> for html2bbcode conversion
- $ret .= "<a href='$embedurl' rel='oembed'>$embedurl</a>";
- }
- $ret.="</span>";
- $ret = str_replace("\n","",$ret);
- return mb_convert_encoding($ret, 'HTML-ENTITIES', mb_detect_encoding($ret));
-}
-
-/**
- * @brief Generates the iframe HTML for an oembed attachment.
- *
- * Width and height are given by the remote, and are regularly too small for
- * the generated iframe.
- *
- * The width is entirely discarded for the actual width of the post, while fixed
- * height is used as a starting point before the inevitable resizing.
- *
- * Since the iframe is automatically resized on load, there are no need for ugly
- * and impractical scrollbars.
- *
- * @param string $src Original remote URL to embed
- * @param string $width
- * @param string $height
- * @return string formatted HTML
- *
- * @see oembed_format_object()
- */
-function oembed_iframe($src, $width, $height) {
- $a = get_app();
-
- if (!$height || strstr($height,'%')) {
- $height = '200';
- }
- $width = '100%';
-
- $s = System::baseUrl() . '/oembed/' . base64url_encode($src);
- return '<iframe onload="resizeIframe(this);" class="embed_rich" height="' . $height . '" width="' . $width . '" src="' . $s . '" allowfullscreen scrolling="no" frameborder="no">' . t('Embedded content') . '</iframe>';
-}
-
-
-
-function oembed_bbcode2html($text){
- $stopoembed = Config::get("system","no_oembed");
- if ($stopoembed == true){
- return preg_replace("/\[embed\](.+?)\[\/embed\]/is", "<!-- oembed $1 --><i>". t('Embedding disabled') ." : $1</i><!-- /oembed $1 -->" ,$text);
- }
- return preg_replace_callback("/\[embed\](.+?)\[\/embed\]/is", 'oembed_replacecb' ,$text);
-}
-
-
-function oe_build_xpath($attr, $value){
- // http://westhoffswelt.de/blog/0036_xpath_to_select_html_by_class.html
- return "contains( normalize-space( @$attr ), ' $value ' ) or substring( normalize-space( @$attr ), 1, string-length( '$value' ) + 1 ) = '$value ' or substring( normalize-space( @$attr ), string-length( @$attr ) - string-length( '$value' ) ) = ' $value' or @$attr = '$value'";
-}
-
-function oe_get_inner_html($node) {
- $innerHTML= '';
- $children = $node->childNodes;
- foreach ($children as $child) {
- $innerHTML .= $child->ownerDocument->saveXML($child);
- }
- return $innerHTML;
-}
-
-/**
- * Find <span class='oembed'>..<a href='url' rel='oembed'>..</a></span>
- * and replace it with [embed]url[/embed]
- */
-function oembed_html2bbcode($text) {
- // start parser only if 'oembed' is in text
- if (strpos($text, "oembed")) {
-
- // convert non ascii chars to html entities
- $html_text = mb_convert_encoding($text, 'HTML-ENTITIES', mb_detect_encoding($text));
-
- // If it doesn't parse at all, just return the text.
- $dom = @DOMDocument::loadHTML($html_text);
- if (! $dom) {
- return $text;
- }
- $xpath = new DOMXPath($dom);
- $attr = "oembed";
-
- $xattr = oe_build_xpath("class","oembed");
- $entries = $xpath->query("//span[$xattr]");
-
- $xattr = "@rel='oembed'";//oe_build_xpath("rel","oembed");
- foreach ($entries as $e) {
- $href = $xpath->evaluate("a[$xattr]/@href", $e)->item(0)->nodeValue;
- if (!is_null($href)) {
- $e->parentNode->replaceChild(new DOMText("[embed]".$href."[/embed]"), $e);
- }
- }
- return oe_get_inner_html( $dom->getElementsByTagName("body")->item(0) );
- } else {
- return $text;
- }
-}
projects / friendica.git / commitdiff