diff options
Diffstat (limited to 'mod/urlinfo.php')
| -rw-r--r-- | mod/urlinfo.php | 383 |
1 files changed, 383 insertions, 0 deletions
diff --git a/mod/urlinfo.php b/mod/urlinfo.php new file mode 100644 index 000000000..6b9be3f6f --- /dev/null +++ b/mod/urlinfo.php @@ -0,0 +1,383 @@ +<?php + +require_once('include/oembed.php'); + +/* To-Do +https://developers.google.com/+/plugins/snippet/ + +<meta itemprop="name" content="Toller Titel"> +<meta itemprop="description" content="Eine tolle Beschreibung"> +<meta itemprop="image" content="http://maple.libertreeproject.org/images/tree-icon.png"> + +<body itemscope itemtype="http://schema.org/Product"> + <h1 itemprop="name">Shiny Trinket</h1> + <img itemprop="image" src="{image-url}" /> + <p itemprop="description">Shiny trinkets are shiny.</p> +</body> +*/ + +if(!function_exists('deletenode')) { + function deletenode(&$doc, $node) + { + $xpath = new DomXPath($doc); + $list = $xpath->query("//".$node); + foreach ($list as $child) + $child->parentNode->removeChild($child); + } +} + +function completeurl($url, $scheme) { + $urlarr = parse_url($url); + + if (isset($urlarr["scheme"])) + return($url); + + $schemearr = parse_url($scheme); + + $complete = $schemearr["scheme"]."://".$schemearr["host"]; + + if ($schemearr["port"] != "") + $complete .= ":".$schemearr["port"]; + + if(strpos($urlarr['path'],'/') !== 0) + $complete .= '/'; + + $complete .= $urlarr["path"]; + + if ($urlarr["query"] != "") + $complete .= "?".$urlarr["query"]; + + if ($urlarr["fragment"] != "") + $complete .= "#".$urlarr["fragment"]; + + return($complete); +} + +function parseurl_getsiteinfo($url) { + $siteinfo = array(); + + + $result = z_fetch_url($url,false,0,array('novalidate' => true)); + if(! $result['success']) + return $siteinfo; + + $header = $result['header']; + $body = $result['body']; + + $body = mb_convert_encoding($body, 'UTF-8', 'UTF-8'); + $body = mb_convert_encoding($body, 'HTML-ENTITIES', "UTF-8"); + + $doc = new DOMDocument(); + @$doc->loadHTML($body); + + deletenode($doc, 'style'); + deletenode($doc, 'script'); + deletenode($doc, 'option'); + deletenode($doc, 'h1'); + deletenode($doc, 'h2'); + deletenode($doc, 'h3'); + deletenode($doc, 'h4'); + deletenode($doc, 'h5'); + deletenode($doc, 'h6'); + deletenode($doc, 'ol'); + deletenode($doc, 'ul'); + + $xpath = new DomXPath($doc); + + //$list = $xpath->query("head/title"); + $list = $xpath->query("//title"); + foreach ($list as $node) + $siteinfo["title"] = html_entity_decode($node->nodeValue, ENT_QUOTES, "UTF-8"); + + //$list = $xpath->query("head/meta[@name]"); + $list = $xpath->query("//meta[@name]"); + foreach ($list as $node) { + $attr = array(); + if ($node->attributes->length) + foreach ($node->attributes as $attribute) + $attr[$attribute->name] = $attribute->value; + + $attr["content"] = html_entity_decode($attr["content"], ENT_QUOTES, "UTF-8"); + + switch (strtolower($attr["name"])) { + case 'generator': + $siteinfo['generator'] = $attr['content']; + break; + case "fulltitle": + $siteinfo["title"] = $attr["content"]; + break; + case "description": + $siteinfo["text"] = $attr["content"]; + break; + case "dc.title": + $siteinfo["title"] = $attr["content"]; + break; + case "dc.description": + $siteinfo["text"] = $attr["content"]; + break; + } + } + + //$list = $xpath->query("head/meta[@property]"); + $list = $xpath->query("//meta[@property]"); + foreach ($list as $node) { + $attr = array(); + if ($node->attributes->length) + foreach ($node->attributes as $attribute) + $attr[$attribute->name] = $attribute->value; + + $attr["content"] = html_entity_decode($attr["content"], ENT_QUOTES, "UTF-8"); + + switch (strtolower($attr["property"])) { + case "og:image": + $siteinfo["image"] = $attr["content"]; + break; + case "og:title": + $siteinfo["title"] = $attr["content"]; + break; + case "og:description": + $siteinfo["text"] = $attr["content"]; + break; + } + } + + if ($siteinfo["image"] == "") { + $list = $xpath->query("//img[@src]"); + foreach ($list as $node) { + $attr = array(); + if ($node->attributes->length) + foreach ($node->attributes as $attribute) + $attr[$attribute->name] = $attribute->value; + + $src = completeurl($attr["src"], $url); + $photodata = @getimagesize($src); + + if (($photodata) && ($photodata[0] > 150) and ($photodata[1] > 150)) { + if ($photodata[0] > 300) { + $photodata[1] = round($photodata[1] * (300 / $photodata[0])); + $photodata[0] = 300; + } + if ($photodata[1] > 300) { + $photodata[0] = round($photodata[0] * (300 / $photodata[1])); + $photodata[1] = 300; + } + $siteinfo["images"][] = array("src"=>$src, + "width"=>$photodata[0], + "height"=>$photodata[1]); + } + + } + } else { + $src = completeurl($siteinfo["image"], $url); + + unset($siteinfo["image"]); + + $photodata = @getimagesize($src); + + if (($photodata) && ($photodata[0] > 10) and ($photodata[1] > 10)) + $siteinfo["images"][] = array("src"=>$src, + "width"=>$photodata[0], + "height"=>$photodata[1]); + } + + if ($siteinfo["text"] == "") { + $text = ""; + + $list = $xpath->query("//div[@class='article']"); + foreach ($list as $node) + if (strlen($node->nodeValue) > 40) + $text .= " ".trim($node->nodeValue); + + if ($text == "") { + $list = $xpath->query("//div[@class='content']"); + foreach ($list as $node) + if (strlen($node->nodeValue) > 40) + $text .= " ".trim($node->nodeValue); + } + + // If none text was found then take the paragraph content + if ($text == "") { + $list = $xpath->query("//p"); + foreach ($list as $node) + if (strlen($node->nodeValue) > 40) + $text .= " ".trim($node->nodeValue); + } + + if ($text != "") { + $text = trim(str_replace(array("\n", "\r"), array(" ", " "), $text)); + + while (strpos($text, " ")) + $text = trim(str_replace(" ", " ", $text)); + + $siteinfo["text"] = html_entity_decode(substr($text,0,350), ENT_QUOTES, "UTF-8").'...'; + } + } + + return($siteinfo); +} + +function arr_add_hashes(&$item,$k) { + $item = '#' . $item; +} + +function urlinfo_content(&$a) { + + logger('urlinfo: ' . print_r($_REQUEST,true)); + + $text = null; + $str_tags = ''; + + + $br = "\n"; + + if(x($_GET,'binurl')) + $url = trim(hex2bin($_GET['binurl'])); + else + $url = trim($_GET['url']); + + if((substr($url,0,1) != '/') && (substr($url,0,4) != 'http')) + $url = 'http://' . $url; + + + if($_GET['title']) + $title = strip_tags(trim($_GET['title'])); + + if($_GET['description']) + $text = strip_tags(trim($_GET['description'])); + + if($_GET['tags']) { + $arr_tags = str_getcsv($_GET['tags']); + if(count($arr_tags)) { + array_walk($arr_tags,'arr_add_hashes'); + $str_tags = $br . implode(' ',$arr_tags) . $br; + } + } + + logger('urlinfo: ' . $url); + + $result = z_fetch_url($url,false,0,array('novalidate' => true, 'nobody' => true)); + if($result['success']) { + $hdrs=array(); + $h = explode("\n",$result['header']); + foreach ($h as $l) { + list($k,$v) = array_map("trim", explode(":", trim($l), 2)); + $hdrs[$k] = $v; + } + if (array_key_exists('Content-Type', $hdrs)) + $type = $hdrs['Content-Type']; + if($type) { + $zrl = is_matrix_url($url); + if(stripos($type,'image/') !== false) { + if($zrl) + echo $br . '[zmg]' . $url . '[/zmg]' . $br; + else + echo $br . '[img]' . $url . '[/img]' . $br; + killme(); + } + if(stripos($type,'video/') !== false) { + if($zrl) + echo $br . '[zvideo]' . $url . '[/zvideo]' . $br; + else + echo $br . '[video]' . $url . '[/video]' . $br; + killme(); + } + if(stripos($type,'audio/') !== false) { + if($zrl) + echo $br . '[zaudio]' . $url . '[/zaudio]' . $br; + else + echo $br . '[audio]' . $url . '[/audio]' . $br; + killme(); + } + } + } + + $template = $br . '#^[url=%s]%s[/url]%s' . $br; + + $arr = array('url' => $url, 'text' => ''); + + call_hooks('parse_link', $arr); + + if(strlen($arr['text'])) { + echo $arr['text']; + killme(); + } + + $x = oembed_process($url); + if($x) { + echo $x; + killme(); + } + + if($url && $title && $text) { + + + $text = $br . '[quote]' . trim($text) . '[/quote]' . $br; + + $title = str_replace(array("\r","\n"),array('',''),$title); + + $result = sprintf($template,$url,($title) ? $title : $url,$text) . $str_tags; + + logger('urlinfo (unparsed): returns: ' . $result); + + echo $result; + killme(); + } + + $siteinfo = parseurl_getsiteinfo($url); + + // If this is a Red site, use zrl rather than url so they get zids sent to them by default + + if( x($siteinfo,'generator') && (strpos($siteinfo['generator'],PLATFORM_NAME . ' ') === 0)) + $template = str_replace('url','zrl',$template); + + if($siteinfo["title"] == "") { + echo sprintf($template,$url,$url,'') . $str_tags; + killme(); + } else { + $text = $siteinfo["text"]; + $title = $siteinfo["title"]; + } + + $image = ""; + + if(sizeof($siteinfo["images"]) > 0){ + /* Execute below code only if image is present in siteinfo */ + + $total_images = 0; + $max_images = get_config('system','max_bookmark_images'); + if($max_images === false) + $max_images = 2; + else + $max_images = intval($max_images); + + foreach ($siteinfo["images"] as $imagedata) { + if ($url) { + $image .= sprintf('[url=%s]', $url); + } + $image .= '[img='.$imagedata["width"].'x'.$imagedata["height"].']'.$imagedata["src"].'[/img]'; + if ($url) { + $image .= '[/url]'; + } + $image .= "\n"; + $total_images ++; + if($max_images && $max_images >= $total_images) + break; + } + } + + if(strlen($text)) { + $text = $br.'[quote]'.trim($text).'[/quote]'.$br ; + } + + if($image) { + $text = $br.$br.$image.$text; + } + $title = str_replace(array("\r","\n"),array('',''),$title); + + $result = sprintf($template,$url,($title) ? $title : $url,$text) . $str_tags; + + logger('urlinfo: returns: ' . $result, LOGGER_DEBUG); + + echo trim($result); + killme(); +} |