389 lines
9.9 KiB
PHP
389 lines
9.9 KiB
PHP
<?php
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namespace Zotlabs\Module;
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class Linkinfo extends \Zotlabs\Web\Controller {
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function get() {
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logger('linkinfo: ' . print_r($_REQUEST,true));
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$text = null;
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$str_tags = '';
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$process_oembed = true;
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$br = "\n";
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if(x($_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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if(substr($url,0,1) === '!') {
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$process_oembed = false;
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$url = substr($url,1);
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}
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$url = strip_zids($url);
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if((substr($url,0,1) != '/') && (substr($url,0,4) != 'http'))
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$url = 'http://' . $url;
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if($_GET['title'])
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$title = strip_tags(trim($_GET['title']));
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if($_GET['description'])
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$text = strip_tags(trim($_GET['description']));
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if($_GET['tags']) {
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$arr_tags = str_getcsv($_GET['tags']);
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if(count($arr_tags)) {
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array_walk($arr_tags,'self::arr_add_hashes');
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$str_tags = $br . implode(' ',$arr_tags) . $br;
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}
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}
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logger('linkinfo: ' . $url);
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$result = z_fetch_url($url,false,0,array('novalidate' => true, 'nobody' => true));
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if($result['success']) {
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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 = $hdrs['Content-Type'];
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if($type) {
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$zrl = is_matrix_url($url);
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if(stripos($type,'image/') !== false) {
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if($zrl)
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echo $br . '[zmg]' . $url . '[/zmg]' . $br;
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else
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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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if($zrl)
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echo $br . '[zvideo]' . $url . '[/zvideo]' . $br;
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else
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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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if($zrl)
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echo $br . '[zaudio]' . $url . '[/zaudio]' . $br;
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else
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echo $br . '[audio]' . $url . '[/audio]' . $br;
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killme();
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}
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}
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}
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$template = $br . '#^[url=%s]%s[/url]%s' . $br;
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$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 $arr['text'];
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killme();
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}
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if($process_oembed) {
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$x = oembed_process($url);
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if($x) {
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echo $x;
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killme();
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}
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}
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if($url && $title && $text) {
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$text = $br . '[quote]' . trim($text) . '[/quote]' . $br;
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$title = str_replace(array("\r","\n"),array('',''),$title);
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$result = sprintf($template,$url,($title) ? $title : $url,$text) . $str_tags;
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logger('linkinfo (unparsed): returns: ' . $result);
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echo $result;
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killme();
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}
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$siteinfo = self::parseurl_getsiteinfo($url);
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// If this is a Red site, use zrl rather than url so they get zids sent to them by default
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if( x($siteinfo,'generator') && (strpos($siteinfo['generator'], \Zotlabs\Lib\System::get_platform_name() . ' ') === 0))
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$template = str_replace('url','zrl',$template);
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if($siteinfo["title"] == "") {
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echo sprintf($template,$url,$url,'') . $str_tags;
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killme();
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} else {
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$text = $siteinfo["text"];
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$title = $siteinfo["title"];
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}
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$image = "";
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if(sizeof($siteinfo["images"]) > 0){
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/* Execute below code only if image is present in siteinfo */
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$total_images = 0;
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$max_images = get_config('system','max_bookmark_images');
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if($max_images === false)
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$max_images = 2;
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else
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$max_images = intval($max_images);
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foreach ($siteinfo["images"] as $imagedata) {
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if ($url) {
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$image .= sprintf('[url=%s]', $url);
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}
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$image .= '[img='.$imagedata["width"].'x'.$imagedata["height"].']'.$imagedata["src"].'[/img]';
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if ($url) {
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$image .= '[/url]';
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}
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$image .= "\n";
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$total_images ++;
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if($max_images && $max_images >= $total_images)
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break;
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}
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}
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if(strlen($text)) {
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$text = $br.'[quote]'.trim($text).'[/quote]'.$br ;
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}
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if($image) {
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$text = $br.$br.$image.$text;
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}
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$title = str_replace(array("\r","\n"),array('',''),$title);
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$result = sprintf($template,$url,($title) ? $title : $url,$text) . $str_tags;
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logger('linkinfo: returns: ' . $result, LOGGER_DEBUG);
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echo trim($result);
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killme();
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}
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public static function deletexnode(&$doc, $node) {
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$xpath = new \DomXPath($doc);
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$list = $xpath->query("//".$node);
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foreach ($list as $child)
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$child->parentNode->removeChild($child);
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}
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public static function completeurl($url, $scheme) {
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$urlarr = parse_url($url);
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if (isset($urlarr["scheme"]))
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return($url);
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$schemearr = parse_url($scheme);
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$complete = $schemearr["scheme"]."://".$schemearr["host"];
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if ($schemearr["port"] != "")
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$complete .= ":".$schemearr["port"];
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if(strpos($urlarr['path'],'/') !== 0)
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$complete .= '/';
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$complete .= $urlarr["path"];
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if ($urlarr["query"] != "")
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$complete .= "?".$urlarr["query"];
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if ($urlarr["fragment"] != "")
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$complete .= "#".$urlarr["fragment"];
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return($complete);
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}
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public static function parseurl_getsiteinfo($url) {
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$siteinfo = array();
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$result = z_fetch_url($url,false,0,array('novalidate' => true));
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if(! $result['success'])
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return $siteinfo;
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$header = $result['header'];
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$body = $result['body'];
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$body = mb_convert_encoding($body, 'UTF-8', 'UTF-8');
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$body = mb_convert_encoding($body, 'HTML-ENTITIES', "UTF-8");
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$doc = new \DOMDocument();
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@$doc->loadHTML($body);
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self::deletexnode($doc, 'style');
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self::deletexnode($doc, 'script');
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self::deletexnode($doc, 'option');
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self::deletexnode($doc, 'h1');
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self::deletexnode($doc, 'h2');
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self::deletexnode($doc, 'h3');
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self::deletexnode($doc, 'h4');
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self::deletexnode($doc, 'h5');
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self::deletexnode($doc, 'h6');
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self::deletexnode($doc, 'ol');
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self::deletexnode($doc, 'ul');
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$xpath = new \DomXPath($doc);
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//$list = $xpath->query("head/title");
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$list = $xpath->query("//title");
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foreach ($list as $node)
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$siteinfo["title"] = html_entity_decode($node->nodeValue, ENT_QUOTES, "UTF-8");
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//$list = $xpath->query("head/meta[@name]");
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$list = $xpath->query("//meta[@name]");
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foreach ($list as $node) {
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$attr = array();
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if ($node->attributes->length)
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foreach ($node->attributes as $attribute)
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$attr[$attribute->name] = $attribute->value;
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$attr["content"] = html_entity_decode($attr["content"], ENT_QUOTES, "UTF-8");
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switch (strtolower($attr["name"])) {
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case 'generator':
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$siteinfo['generator'] = $attr['content'];
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break;
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case "fulltitle":
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$siteinfo["title"] = $attr["content"];
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break;
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case "description":
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$siteinfo["text"] = $attr["content"];
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break;
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case "dc.title":
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$siteinfo["title"] = $attr["content"];
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break;
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case "dc.description":
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$siteinfo["text"] = $attr["content"];
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break;
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}
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}
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//$list = $xpath->query("head/meta[@property]");
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$list = $xpath->query("//meta[@property]");
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foreach ($list as $node) {
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$attr = array();
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if ($node->attributes->length)
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foreach ($node->attributes as $attribute)
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$attr[$attribute->name] = $attribute->value;
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$attr["content"] = html_entity_decode($attr["content"], ENT_QUOTES, "UTF-8");
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switch (strtolower($attr["property"])) {
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case "og:image":
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$siteinfo["image"] = $attr["content"];
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break;
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case "og:title":
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$siteinfo["title"] = $attr["content"];
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break;
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case "og:description":
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$siteinfo["text"] = $attr["content"];
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break;
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}
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}
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if ($siteinfo["image"] == "") {
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$list = $xpath->query("//img[@src]");
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foreach ($list as $node) {
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$attr = array();
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if ($node->attributes->length)
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foreach ($node->attributes as $attribute)
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$attr[$attribute->name] = $attribute->value;
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$src = self::completeurl($attr["src"], $url);
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$photodata = @getimagesize($src);
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if (($photodata) && ($photodata[0] > 150) and ($photodata[1] > 150)) {
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if ($photodata[0] > 300) {
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$photodata[1] = round($photodata[1] * (300 / $photodata[0]));
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$photodata[0] = 300;
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}
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if ($photodata[1] > 300) {
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$photodata[0] = round($photodata[0] * (300 / $photodata[1]));
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$photodata[1] = 300;
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}
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$siteinfo["images"][] = array("src"=>$src,
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"width"=>$photodata[0],
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"height"=>$photodata[1]);
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}
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}
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} else {
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$src = self::completeurl($siteinfo["image"], $url);
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unset($siteinfo["image"]);
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$photodata = @getimagesize($src);
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if (($photodata) && ($photodata[0] > 10) and ($photodata[1] > 10))
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$siteinfo["images"][] = array("src"=>$src,
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"width"=>$photodata[0],
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"height"=>$photodata[1]);
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}
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if ($siteinfo["text"] == "") {
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$text = "";
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$list = $xpath->query("//div[@class='article']");
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foreach ($list as $node)
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if (strlen($node->nodeValue) > 40)
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$text .= " ".trim($node->nodeValue);
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if ($text == "") {
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$list = $xpath->query("//div[@class='content']");
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foreach ($list as $node)
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if (strlen($node->nodeValue) > 40)
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$text .= " ".trim($node->nodeValue);
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}
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// If none text was found then take the paragraph content
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if ($text == "") {
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$list = $xpath->query("//p");
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foreach ($list as $node)
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if (strlen($node->nodeValue) > 40)
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$text .= " ".trim($node->nodeValue);
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}
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if ($text != "") {
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$text = trim(str_replace(array("\n", "\r"), array(" ", " "), $text));
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while (strpos($text, " "))
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$text = trim(str_replace(" ", " ", $text));
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$siteinfo["text"] = html_entity_decode(substr($text,0,350), ENT_QUOTES, "UTF-8").'...';
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}
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}
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return($siteinfo);
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}
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private static function arr_add_hashes(&$item,$k) {
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$item = '#' . $item;
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}
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}
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