Fixes E_WARNING from foreach() because count() seem to return TRUE even when $r is...

[friendica.git] / include / Scrape.php

diff --git a/include/Scrape.php b/include/Scrape.php
index 95a3c0221f51ac32ca89017e4eeb52fceaa24101..e8e9a97a16c61cb1943fceb92acd9ac8954d9c80 100644 (file)
--- a/include/Scrape.php
+++ b/include/Scrape.php
@@ -13,6 +13,20 @@ function scrape_dfrn($url, $dont_probe = false) {
 
        logger('scrape_dfrn: url=' . $url);
 
+       // Try to fetch the data from noscrape. This is faster than parsing the HTML
+       $noscrape = str_replace("/hcard/", "/noscrape/", $url);
+       $noscrapejson = fetch_url($noscrape);
+       $noscrapedata = array();
+       if ($noscrapejson) {
+               $noscrapedata = json_decode($noscrapejson, true);
+
+               if (is_array($noscrapedata)) {
+                       if ($noscrapedata["nick"] != "")
+                               return($noscrapedata);
+               } else
+                       $noscrapedata = array();
+       }
+
        $s = fetch_url($url);
 
        if(! $s)
@@ -92,8 +106,7 @@ function scrape_dfrn($url, $dont_probe = false) {
                        }
                }
        }
-
-       return $ret;
+       return array_merge($ret, $noscrapedata);
 }}
 
 
@@ -743,18 +756,18 @@ function probe_url($url, $mode = PROBE_NORMAL, $level = 1) {
                $vcard['fn'] = $url;
 
        if (($notify != "") AND ($poll != "")) {
-               $baseurl = matching(normalise_link($notify), normalise_link($poll));
+               $baseurl = matching_url(normalise_link($notify), normalise_link($poll));
 
-               $baseurl2 = matching($baseurl, normalise_link($profile));
+               $baseurl2 = matching_url($baseurl, normalise_link($profile));
                if ($baseurl2 != "")
                        $baseurl = $baseurl2;
        }
 
        if (($baseurl == "") AND ($notify != ""))
-               $baseurl = matching(normalise_link($profile), normalise_link($notify));
+               $baseurl = matching_url(normalise_link($profile), normalise_link($notify));
 
        if (($baseurl == "") AND ($poll != ""))
-               $baseurl = matching(normalise_link($profile), normalise_link($poll));
+               $baseurl = matching_url(normalise_link($profile), normalise_link($poll));
 
        $baseurl = rtrim($baseurl, "/");
 
@@ -809,19 +822,56 @@ function probe_url($url, $mode = PROBE_NORMAL, $level = 1) {
        return $result;
 }
 
-function matching($part1, $part2) {
-       $len = min(strlen($part1), strlen($part2));
+/**
+ * @brief Find the matching part between two url
+ *
+ * @param string $url1
+ * @param string $url2
+ * @return string The matching part
+ */
+function matching_url($url1, $url2) {
+
+       if (($url1 == "") OR ($url2 == ""))
+               return "";
+
+       $url1 = normalise_link($url1);
+       $url2 = normalise_link($url2);
+
+       $parts1 = parse_url($url1);
+       $parts2 = parse_url($url2);
+
+       if (!isset($parts1["host"]) OR !isset($parts2["host"]))
+               return "";
+
+       if ($parts1["scheme"] != $parts2["scheme"])
+               return "";
+
+       if ($parts1["host"] != $parts2["host"])
+               return "";
+
+       if ($parts1["port"] != $parts2["port"])
+               return "";
+
+       $match = $parts1["scheme"]."://".$parts1["host"];
+
+       if ($parts1["port"])
+               $match .= ":".$parts1["port"];
+
+       $pathparts1 = explode("/", $parts1["path"]);
+       $pathparts2 = explode("/", $parts2["path"]);
 
-       $match = "";
-       $matching = true;
        $i = 0;
-       while (($i <= $len) AND $matching) {
-               if (substr($part1, $i, 1) == substr($part2, $i, 1))
-                       $match .= substr($part1, $i, 1);
-               else
-                       $matching = false;
+       $path = "";
+       do {
+               $path1 = $pathparts1[$i];
+               $path2 = $pathparts2[$i];
 
-               $i++;
-       }
-       return($match);
+               if ($path1 == $path2)
+                       $path .= $path1."/";
+
+       } while (($path1 == $path2) AND ($i++ <= count($pathparts1)));
+
+       $match .= $path;
+
+       return normalise_link($match);
 }