Avoid memory issue in exception

[friendica.git/.git] / src / Util / JsonLD.php

diff --git a/src/Util/JsonLD.php b/src/Util/JsonLD.php
index bed7a67..ec68375 100644 (file)
--- a/src/Util/JsonLD.php
+++ b/src/Util/JsonLD.php
@@ -18,7 +18,8 @@ class JsonLD
         *
         * @param $url
         *
-        * @return the loaded data
+        * @return mixed the loaded data
+        * @throws \JsonLdException
         */
        public static function documentLoader($url)
        {
@@ -53,7 +54,8 @@ class JsonLD
         *
         * @param array $json
         *
-        * @return normalized JSON string
+        * @return mixed|bool normalized JSON string
+        * @throws Exception
         */
        public static function normalize($json)
        {
@@ -66,7 +68,7 @@ class JsonLD
                }
                catch (Exception $e) {
                        $normalized = false;
-                       Logger::log('normalise error:' . print_r($e, true), Logger::DEBUG);
+                       Logger::log('normalise error:' . substr(print_r($e, true), 0, 10000), Logger::DEBUG);
                }
 
                return $normalized;
@@ -77,7 +79,8 @@ class JsonLD
         *
         * @param array $json
         *
-        * @return comacted JSON array
+        * @return array Compacted JSON array
+        * @throws Exception
         */
        public static function compact($json)
        {
@@ -90,20 +93,38 @@ class JsonLD
                        'dfrn' => (object)['@id' => 'http://purl.org/macgirvin/dfrn/1.0/', '@type' => '@id'],
                        'diaspora' => (object)['@id' => 'https://diasporafoundation.org/ns/', '@type' => '@id'],
                        'ostatus' => (object)['@id' => 'http://ostatus.org#', '@type' => '@id'],
-                       'dc' => (object)['@id' => 'http://purl.org/dc/terms/', '@type' => '@id']];
+                       'dc' => (object)['@id' => 'http://purl.org/dc/terms/', '@type' => '@id'],
+                       'toot' => (object)['@id' => 'http://joinmastodon.org/ns#', '@type' => '@id']];
 
-               $jsonobj = json_decode(json_encode($json, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE));
+               // Workaround for Nextcloud Social
+               // See issue https://github.com/nextcloud/social/issues/330
+               if (!empty($json['@context']) && is_array($json['@context'])) {
+                       $json['@context'][] = 'https://w3id.org/security/v1';
+               }
+
+               // Trying to avoid memory problems with large content fields
+               if (!empty($json['object']['source']['content'])) {
+                       $content = $json['object']['source']['content'];
+                       $json['object']['source']['content'] = '';
+               }
 
+               $jsonobj = json_decode(json_encode($json, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE));
 
                try {
                        $compacted = jsonld_compact($jsonobj, $context);
                }
                catch (Exception $e) {
                        $compacted = false;
-                       Logger::log('compacting error:' . print_r($e, true), Logger::DEBUG);
+                       Logger::log('compacting error:' . substr(print_r($e, true), 0, 10000), Logger::DEBUG);
+               }
+
+               $json = json_decode(json_encode($compacted, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE), true);
+
+               if (isset($json['as:object']['as:source']['as:content']) && !empty($content)) {
+                       $json['as:object']['as:source']['as:content'] = $content;
                }
 
-               return json_decode(json_encode($compacted, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE), true);
+               return $json;
        }
 
        /**
@@ -113,7 +134,7 @@ class JsonLD
         * @param $element
         * @param $key
         *
-        * @return fetched element array
+        * @return array fetched element
         */
        public static function fetchElementArray($array, $element, $key = '@id')
        {
@@ -154,7 +175,7 @@ class JsonLD
         * @param $type
         * @param $type_value
         *
-        * @return fetched element
+        * @return string fetched element
         */
        public static function fetchElement($array, $element, $key = '@id', $type = null, $type_value = null)
        {