diff options
Diffstat (limited to 'include/oembed.php')
| -rw-r--r-- | include/oembed.php | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/include/oembed.php b/include/oembed.php new file mode 100644 index 000000000..37923a877 --- /dev/null +++ b/include/oembed.php @@ -0,0 +1,97 @@ +<?php +function oembed_replacecb($matches){ + $embedurl=$matches[1]; + + $r = q("SELECT v FROM `cache` WHERE k='%s'", + dbesc($embedurl)); + if(count($r)){ + $txt = $r[0]['v']; + } else { + $ourl = "http://oohembed.com/oohembed/?url=".urlencode($embedurl); + $txt = fetch_url($ourl); + //save in cache + q("INSERT INTO `cache` VALUES ('%s','%s','%s')", + dbesc($embedurl), + dbesc($txt), + dbesc(datetime_convert())); + } + $j = json_decode($txt); + $ret="<span class='oembed'>"; + switch ($j->type) { + case "video": { + if (isset($j->thumbnail_url)) { + $tw = (isset($j->thumbnail_width)) ? $j->thumbnail_width:200; + $th = (isset($j->thumbnail_height)) ? $j->thumbnail_height:180; + $ret = "<a href='".$embedurl."' onclick='this.innerHTML=unescape(\"".urlencode($j->html)."\").replace(/\+/g,\" \"); return false;' >"; + $ret.= "<img width='$tw' height='$th' src='".$j->thumbnail_url."'>"; + $ret.= "</a>"; + } else { + $ret=$j->html; + } + $ret.="<br>"; + }; break; + case "photo": { + $ret = "<img width='".$j->width."' height='".$j->height."' src='".$j->url."'>"; + $ret.="<br>"; + }; break; + case "link": { + //$ret = "<a href='".$embedurl."'>".$j->title."</a>"; + }; break; + case "rich": { + // not so safe.. + $ret = "<blockquote>".$j->html."</blockquote>"; + }; break; + } + + $embedlink = (isset($j->title))?$j->title:$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.="</span>"; + return $ret; +} + +function oembed_bbcode2html($text){ + $stopoembed = get_config("system","no_oembed"); + if ($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) { + $dom = DOMDocument::loadHTML($text); + $xpath = new DOMXPath($dom); + $attr = "oembed"; + + $xattr = oe_build_xpath("class","oembed"); + $entries = $xpath->query("//span[$xattr]"); + + $xattr = oe_build_xpath("rel","oembed"); + foreach($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) ); +} + +?>
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