2 function oembed_replacecb($matches){
4 $j = oembed_fetch_url($embedurl);
5 $s = oembed_format_object($j);
10 * @brief Get data from an URL to embed its content.
12 * @param string $embedurl The URL from which the data should be fetched.
13 * @param bool $no_rich_type If set to true rich type content won't be fetched.
15 * @return bool|object Returns object with embed content or false if no embedable
18 function oembed_fetch_url($embedurl, $no_rich_type = false){
19 $embedurl = trim($embedurl, "'");
20 $embedurl = trim($embedurl, '"');
24 $r = q("SELECT * FROM `oembed` WHERE `url` = '%s'",
25 dbesc(normalise_link($embedurl)));
27 if (dbm::is_result($r)) {
28 $txt = $r[0]["content"];
30 $txt = Cache::get($a->videowidth . $embedurl);
32 // These media files should now be caught in bbcode.php
33 // left here as a fallback in case this is called from another source
35 $noexts = array("mp3","mp4","ogg","ogv","oga","ogm","webm");
36 $ext = pathinfo(strtolower($embedurl),PATHINFO_EXTENSION);
42 if (!in_array($ext, $noexts)){
43 // try oembed autodiscovery
45 $html_text = fetch_url($embedurl, false, $redirects, 15, "text/*");
47 $dom = @DOMDocument::loadHTML($html_text);
49 $xpath = new DOMXPath($dom);
51 $xattr = oe_build_xpath("class","oembed");
52 $entries = $xpath->query("//link[@type='application/json+oembed']");
53 foreach ($entries as $e) {
54 $href = $e->getAttributeNode("href")->nodeValue;
55 $txt = fetch_url($href . '&maxwidth=' . $a->videowidth);
58 $entries = $xpath->query("//link[@type='text/json+oembed']");
59 foreach ($entries as $e) {
60 $href = $e->getAttributeNode("href")->nodeValue;
61 $txt = fetch_url($href . '&maxwidth=' . $a->videowidth);
68 if ($txt==false || $txt=="") {
69 $embedly = get_config("system", "embedly");
71 // try embedly service
72 $ourl = "https://api.embed.ly/1/oembed?key=".$embedly."&url=".urlencode($embedurl);
73 $txt = fetch_url($ourl);
75 logger("oembed_fetch_url: ".$txt, LOGGER_DEBUG);
82 $txt='{"type":"error"}';
83 } else { //save in cache
84 $j = json_decode($txt);
85 if ($j->type != "error") {
86 q("INSERT INTO `oembed` (`url`, `content`, `created`) VALUES ('%s', '%s', '%s')
87 ON DUPLICATE KEY UPDATE `content` = '%s', `created` = '%s'",
88 dbesc(normalise_link($embedurl)),
89 dbesc($txt), dbesc(datetime_convert()),
90 dbesc($txt), dbesc(datetime_convert()));
93 Cache::set($a->videowidth.$embedurl, $txt, CACHE_DAY);
97 $j = json_decode($txt);
103 // Always embed the SSL version
104 if (isset($j->html)) {
105 $j->html = str_replace(array("http://www.youtube.com/", "http://player.vimeo.com/"),
106 array("https://www.youtube.com/", "https://player.vimeo.com/"), $j->html);
109 $j->embedurl = $embedurl;
111 // If fetching information doesn't work, then improve via internal functions
112 if (($j->type == "error") OR ($no_rich_type AND ($j->type == "rich"))) {
113 require_once("mod/parse_url.php");
114 $data = parseurl_getsiteinfo_cached($embedurl, true, false);
115 $j->type = $data["type"];
117 if ($j->type == "photo") {
118 $j->url = $data["url"];
119 //$j->width = $data["images"][0]["width"];
120 //$j->height = $data["images"][0]["height"];
123 if (isset($data["title"])) {
124 $j->title = $data["title"];
127 if (isset($data["text"])) {
128 $j->description = $data["text"];
131 if (is_array($data["images"])) {
132 $j->thumbnail_url = $data["images"][0]["src"];
133 $j->thumbnail_width = $data["images"][0]["width"];
134 $j->thumbnail_height = $data["images"][0]["height"];
138 call_hooks('oembed_fetch_url', $embedurl, $j);
143 function oembed_format_object($j){
144 require_once("mod/proxy.php");
147 $embedurl = $j->embedurl;
148 $jhtml = oembed_iframe($j->embedurl,(isset($j->width) ? $j->width : null), (isset($j->height) ? $j->height : null) );
149 $ret="<span class='oembed ".$j->type."'>";
152 if (isset($j->thumbnail_url)) {
153 $tw = (isset($j->thumbnail_width) && intval($j->thumbnail_width)) ? $j->thumbnail_width:200;
154 $th = (isset($j->thumbnail_height) && intval($j->thumbnail_height)) ? $j->thumbnail_height:180;
155 // make sure we don't attempt divide by zero, fallback is a 1:1 ratio
156 $tr = (($th) ? $tw/$th : 1);
158 $th=120; $tw = $th*$tr;
159 $tpl=get_markup_template('oembed_video.tpl');
160 $ret.=replace_macros($tpl, array(
161 '$baseurl' => $a->get_baseurl(),
162 '$embedurl'=>$embedurl,
163 '$escapedhtml'=>base64_encode($jhtml),
166 '$turl'=>$j->thumbnail_url,
175 $ret.= "<img width='".$j->width."' src='".proxy_url($j->url)."'>";
181 if (!get_config("system","no_oembed_rich_content"))
182 $ret.= proxy_parse_html($jhtml);
186 // add link to source if not present in "rich" type
187 if ($j->type!='rich' || !strpos($j->html,$embedurl) ){
189 if (isset($j->title)) {
190 if (isset($j->provider_name))
191 $ret .= $j->provider_name.": ";
193 $embedlink = (isset($j->title))?$j->title:$embedurl;
194 $ret .= "<a href='$embedurl' rel='oembed'>$embedlink</a>";
195 if (isset($j->author_name))
196 $ret.=" (".$j->author_name.")";
197 } elseif (isset($j->provider_name) OR isset($j->author_name)) {
199 if (isset($j->provider_name))
200 $embedlink .= $j->provider_name;
202 if (isset($j->author_name)) {
203 if ($embedlink != "")
206 $embedlink .= $j->author_name;
208 if (trim($embedlink) == "")
209 $embedlink = $embedurl;
211 $ret .= "<a href='$embedurl' rel='oembed'>$embedlink</a>";
213 //if (isset($j->author_name)) $ret.=" by ".$j->author_name;
214 //if (isset($j->provider_name)) $ret.=" on ".$j->provider_name;
217 // add <a> for html2bbcode conversion
218 $ret .= "<a href='$embedurl' rel='oembed'>$embedurl</a>";
221 $ret = str_replace("\n","",$ret);
222 return mb_convert_encoding($ret, 'HTML-ENTITIES', mb_detect_encoding($ret));
226 * @brief Generates the iframe HTML for an oembed attachment.
228 * Width and height are given by the remote, and are regularly too small for
229 * the generated iframe.
231 * The width is entirely discarded for the actual width of the post, while fixed
232 * height is used as a starting point before the inevitable resizing.
234 * Since the iframe is automatically resized on load, there are no need for ugly
235 * and impractical scrollbars.
237 * @param string $src Original remote URL to embed
238 * @param string $width
239 * @param string $height
240 * @return string formatted HTML
242 * @see oembed_format_object()
244 function oembed_iframe($src, $width, $height) {
245 if (!$height || strstr($height,'%')) {
251 $s = $a->get_baseurl() . '/oembed/'.base64url_encode($src);
252 return '<iframe onload="resizeIframe(this);" class="embed_rich" height="' . $height . '" width="' . $width . '" src="' . $s . '" scrolling="no" frameborder="no">' . t('Embedded content') . '</iframe>';
257 function oembed_bbcode2html($text){
258 $stopoembed = get_config("system","no_oembed");
259 if ($stopoembed == true){
260 return preg_replace("/\[embed\](.+?)\[\/embed\]/is", "<!-- oembed $1 --><i>". t('Embedding disabled') ." : $1</i><!-- /oembed $1 -->" ,$text);
262 return preg_replace_callback("/\[embed\](.+?)\[\/embed\]/is", 'oembed_replacecb' ,$text);
266 function oe_build_xpath($attr, $value){
267 // http://westhoffswelt.de/blog/0036_xpath_to_select_html_by_class.html
268 return "contains( normalize-space( @$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'";
271 function oe_get_inner_html( $node ) {
273 $children = $node->childNodes;
274 foreach ($children as $child) {
275 $innerHTML .= $child->ownerDocument->saveXML( $child );
281 * Find <span class='oembed'>..<a href='url' rel='oembed'>..</a></span>
282 * and replace it with [embed]url[/embed]
284 function oembed_html2bbcode($text) {
285 // start parser only if 'oembed' is in text
286 if (strpos($text, "oembed")){
288 // convert non ascii chars to html entities
289 $html_text = mb_convert_encoding($text, 'HTML-ENTITIES', mb_detect_encoding($text));
291 // If it doesn't parse at all, just return the text.
292 $dom = @DOMDocument::loadHTML($html_text);
295 $xpath = new DOMXPath($dom);
298 $xattr = oe_build_xpath("class","oembed");
299 $entries = $xpath->query("//span[$xattr]");
301 $xattr = "@rel='oembed'";//oe_build_xpath("rel","oembed");
302 foreach($entries as $e) {
303 $href = $xpath->evaluate("a[$xattr]/@href", $e)->item(0)->nodeValue;
304 if(!is_null($href)) $e->parentNode->replaceChild(new DOMText("[embed]".$href."[/embed]"), $e);
306 return oe_get_inner_html( $dom->getElementsByTagName("body")->item(0) );