GNUsocial/gnu-social
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Search in sub-items for links to the target as well

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This commit is contained in:
Stephen Paul Weber 2015-10-22 19:29:04 +00:00
parent 96e0819f00
commit aa4d880148
1 changed files with 37 additions and 23 deletions
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60
plugins/Linkback/lib/util.php
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@ -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("/<a[^>]+?".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("/<a[^>]+?".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("/<a[^>]+?".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("/<a[^>]+?".preg_quote($target, "/")."[^>]*>([^>]+?)<\/a>/i", htmlspecialchars_decode($values[0]), $context)) {
return $entry['properties'];
}
if($prop = linkback_is_contained_in($entry, $target)) {
return $prop;
}
}