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-rw-r--r--Zotlabs/Module/Linkinfo.php381
1 files changed, 381 insertions, 0 deletions
diff --git a/Zotlabs/Module/Linkinfo.php b/Zotlabs/Module/Linkinfo.php
new file mode 100644
index 000000000..a1008f7c4
--- /dev/null
+++ b/Zotlabs/Module/Linkinfo.php
@@ -0,0 +1,381 @@
+<?php
+namespace Zotlabs\Module;
+
+
+
+
+
+class Linkinfo extends \Zotlabs\Web\Controller {
+
+ function get() {
+
+ logger('linkinfo: ' . print_r($_REQUEST,true));
+
+ $text = null;
+ $str_tags = '';
+
+
+ $br = "\n";
+
+ if(x($_GET,'binurl'))
+ $url = trim(hex2bin($_GET['binurl']));
+ else
+ $url = trim($_GET['url']);
+
+ $url = strip_zids($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,'self::arr_add_hashes');
+ $str_tags = $br . implode(' ',$arr_tags) . $br;
+ }
+ }
+
+ logger('linkinfo: ' . $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('linkinfo (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'], \Zotlabs\Project\System::get_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('linkinfo: returns: ' . $result, LOGGER_DEBUG);
+
+ echo trim($result);
+ killme();
+
+ }
+
+
+ function deletexnode(&$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);
+
+ $this->deletexnode($doc, 'style');
+ $this->deletexnode($doc, 'script');
+ $this->deletexnode($doc, 'option');
+ $this->deletexnode($doc, 'h1');
+ $this->deletexnode($doc, 'h2');
+ $this->deletexnode($doc, 'h3');
+ $this->deletexnode($doc, 'h4');
+ $this->deletexnode($doc, 'h5');
+ $this->deletexnode($doc, 'h6');
+ $this->deletexnode($doc, 'ol');
+ $this->deletexnode($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 = $this->completeurl($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 = $this->completeurl($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($siteinfo);
+ }
+
+
+ private static function arr_add_hashes(&$item,$k) {
+ $item = '#' . $item;
+ }
+
+
+
+
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 22:56:12 +0000