New style for shared links. Preparation for changes in some addons

[friendica.git] / mod / parse_url.php

diff --git a/mod/parse_url.php b/mod/parse_url.php
index 1393a15d36b95bd94a9ab69ebd6fa6a38cddacb7..cb7268c1df83acd0e14bb9db4e0b1617346e2bc4 100644 (file)
--- a/mod/parse_url.php
+++ b/mod/parse_url.php
@@ -33,7 +33,7 @@ function completeurl($url, $scheme) {
 
         $complete = $schemearr["scheme"]."://".$schemearr["host"];
 
-        if ($schemearr["port"] != "")
+        if (@$schemearr["port"] != "")
                 $complete .= ":".$schemearr["port"];
 
                if(strpos($urlarr['path'],'/') !== 0)
@@ -41,29 +41,53 @@ function completeurl($url, $scheme) {
 
         $complete .= $urlarr["path"];
 
-        if ($urlarr["query"] != "")
+        if (@$urlarr["query"] != "")
                 $complete .= "?".$urlarr["query"];
 
-        if ($urlarr["fragment"] != "")
+        if (@$urlarr["fragment"] != "")
                 $complete .= "#".$urlarr["fragment"];
 
         return($complete);
 }
 
-function parseurl_getsiteinfo($url) {
+function parseurl_getsiteinfo($url, $no_guessing = false) {
        $siteinfo = array();
-
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_HEADER, 1);
        curl_setopt($ch, CURLOPT_NOBODY, 0);
        curl_setopt($ch, CURLOPT_TIMEOUT, 3);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
-       curl_setopt($ch,CURLOPT_USERAGENT,'Opera/9.64(Windows NT 5.1; U; de) Presto/2.1.1');
+       //curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
+       curl_setopt($ch,CURLOPT_USERAGENT,' Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:24.0) Gecko/20100101 Firefox/24.0');
 
        $header = curl_exec($ch);
+       $curl_info = @curl_getinfo($ch);
+        $http_code = $curl_info['http_code'];
        curl_close($ch);
 
+       if ((($curl_info['http_code'] == "301") OR ($curl_info['http_code'] == "302"))
+               AND (($curl_info['redirect_url'] != "") OR ($curl_info['location'] != ""))) {
+               if ($curl_info['redirect_url'] != "")
+                       $siteinfo = parseurl_getsiteinfo($curl_info['redirect_url']);
+               else
+                       $siteinfo = parseurl_getsiteinfo($curl_info['location']);
+               return($siteinfo);
+       }
+
+       require_once("include/oembed.php");
+
+       $oembed_data = oembed_fetch_url($url);
+
+       if ($oembed_data->type == "link") {
+               if (isset($oembed_data->title))
+                       $siteinfo["title"] = $oembed_data->title;
+               if (isset($oembed_data->description))
+                       $siteinfo["text"] = $oembed_data->description;
+               if (isset($oembed_data->thumbnail_url))
+                       $siteinfo["image"] = $oembed_data->thumbnail_url;
+       }
+
        // Fetch the first mentioned charset. Can be in body or header
        if (preg_match('/charset=(.*?)['."'".'"\s\n]/', $header, $matches))
                $charset = trim(array_pop($matches));
@@ -173,7 +197,7 @@ function parseurl_getsiteinfo($url) {
                }
        }
 
-       if ($siteinfo["image"] == "") {
+       if ((@$siteinfo["image"] == "") AND !$no_guessing) {
             $list = $xpath->query("//img[@src]");
             foreach ($list as $node) {
                 $attr = array();
@@ -212,7 +236,7 @@ function parseurl_getsiteinfo($url) {
                                                        "height"=>$photodata[1]);
        }
 
-       if ($siteinfo["text"] == "") {
+       if ((@$siteinfo["text"] == "") AND (@$siteinfo["title"] != "") AND !$no_guessing) {
                $text = "";
 
                $list = $xpath->query("//div[@class='article']");