diff --git a/plugins/Linkback/lib/util.php b/plugins/Linkback/lib/util.php
index cf3f55c5ff..694dd84b0d 100644
--- a/plugins/Linkback/lib/util.php
+++ b/plugins/Linkback/lib/util.php
@@ -61,6 +61,41 @@ function linkback_get_target($target) {
return NULL;
}
+function linkback_is_contained_in($entry, $target) {
+ foreach ((array)$entry['properties'] as $key => $values) {
+ if(count(array_filter($values, function($x) use ($target) { return linkback_lenient_target_match($x, $target); })) > 0) {
+ return $entry['properties'];
+ }
+
+ // check included h-* formats and their links
+ foreach ($values as $obj) {
+ if(isset($obj['type']) && array_intersect(array('h-cite', 'h-entry'), $obj['type']) &&
+ isset($obj['properties']) && isset($obj['properties']['url']) &&
+ count(array_filter($obj['properties']['url'],
+ function($x) use ($target) { return linkback_lenient_target_match($x, $target); })) > 0
+ ) {
+ return $entry['properties'];
+ }
+ }
+
+ // check content for the link
+ if ($key == "content" && preg_match_all("/]+?".preg_quote($target, "/")."[^>]*>([^>]+?)<\/a>/i", htmlspecialchars_decode($values[0]['html']), $context)) {
+ return $entry['properties'];
+ // check summary for the link
+ } elseif ($key == "summary" && preg_match_all("/]+?".preg_quote($target, "/")."[^>]*>([^>]+?)<\/a>/i", htmlspecialchars_decode($values[0]), $context)) {
+ return $entry['properties'];
+ }
+ }
+
+ foreach((array)$entry['children'] as $mf2) {
+ if(linkback_is_contained_in($mf2, $target)) {
+ return $entry['properties'];
+ }
+ }
+
+ return null;
+}
+
// Based on https://github.com/acegiak/Semantic-Linkbacks/blob/master/semantic-linkbacks-microformats-handler.php, GPL-2.0+
function linkback_find_entry($mf2, $target) {
if(isset($mf2['items'][0]['type']) && in_array("h-feed", $mf2['items'][0]["type"]) && isset($mf2['items'][0]['children'])) {
@@ -70,29 +105,8 @@ function linkback_find_entry($mf2, $target) {
$entries = array_filter($mf2['items'], function($x) { return isset($x['type']) && in_array('h-entry', $x['type']); });
foreach ($entries as $entry) {
- foreach ((array)$entry['properties'] as $key => $values) {
- if(count(array_filter($values, function($x) use ($target) { return linkback_lenient_target_match($x, $target); })) > 0) {
- return $entry['properties'];
- }
-
- // check included h-* formats and their links
- foreach ($values as $obj) {
- if(isset($obj['type']) && array_intersect(array('h-cite', 'h-entry'), $obj['type']) &&
- isset($obj['properties']) && isset($obj['properties']['url']) &&
- count(array_filter($obj['properties']['url'],
- function($x) use ($target) { return linkback_lenient_target_match($x, $target); })) > 0
- ) {
- return $entry['properties'];
- }
- }
-
- // check content for the link
- if ($key == "content" && preg_match_all("/]+?".preg_quote($target, "/")."[^>]*>([^>]+?)<\/a>/i", htmlspecialchars_decode($values[0]['html']), $context)) {
- return $entry['properties'];
- // check summary for the link
- } elseif ($key == "summary" && preg_match_all("/]+?".preg_quote($target, "/")."[^>]*>([^>]+?)<\/a>/i", htmlspecialchars_decode($values[0]), $context)) {
- return $entry['properties'];
- }
+ if($prop = linkback_is_contained_in($entry, $target)) {
+ return $prop;
}
}