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friendica
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JSON-LD stuff is now in a separate file

This commit is contained in:
Michael 2018-09-20 05:30:07 +00:00
parent f20bed67a9
commit 34cb0aa406
2 changed files with 68 additions and 47 deletions
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47
src/Protocol/ActivityPub.php
View File

@ -19,8 +19,6 @@ use Friendica\Util\DateTimeFormat;
use Friendica\Util\Crypto;
use Friendica\Content\Text\BBCode;
use Friendica\Content\Text\HTML;
use Friendica\Core\Cache;
use digitalbazaar\jsonld;
/**
* @brief ActivityPub Protocol class
@ -58,51 +56,6 @@ class ActivityPub
{
const PUBLIC = 'https://www.w3.org/ns/activitystreams#Public';
public static function jsonld_document_loader($url)
{
$recursion = 0;
$x = debug_backtrace();
if ($x) {
foreach ($x as $n) {
if ($n['function'] === __FUNCTION__) {
$recursion ++;
}
}
}
if ($recursion > 5) {
logger('jsonld bomb detected at: ' . $url);
exit();
}
$result = Cache::get('jsonld_document_loader:' . $url);
if (!is_null($result)) {
return $result;
}
$data = jsonld_default_document_loader($url);
Cache::set('jsonld_document_loader:' . $url, $data, CACHE_DAY);
return $data;
}
public static function compactJsonLD($json)
{
jsonld_set_document_loader('Friendica\Protocol\ActivityPub::jsonld_document_loader');
$context = (object)['as' => 'https://www.w3.org/ns/activitystreams',
'w3sec' => 'https://w3id.org/security',
'ostatus' => (object)['@id' => 'http://ostatus.org#', '@type' => '@id'],
'vcard' => (object)['@id' => 'http://www.w3.org/2006/vcard/ns#', '@type' => '@id'],
'uuid' => (object)['@id' => 'http://schema.org/identifier', '@type' => '@id']];
$jsonobj = json_decode(json_encode($json));
$compacted = jsonld_compact($jsonobj, $context);
return json_decode(json_encode($compacted), true);
}
public static function isRequest()
{
return stristr(defaults($_SERVER, 'HTTP_ACCEPT', ''), 'application/activity+json') ||

68
src/Util/JsonLD.php Normal file
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@ -0,0 +1,68 @@
<?php
/**
* @file src/Util/JsonLD.php
*/
namespace Friendica\Util;
use Friendica\Core\Cache;
use digitalbazaar\jsonld as DBJsonLD;
/**
* @brief This class contain methods to work with JsonLD data
*/
class JsonLD
{
public static function documentLoader($url)
{
$recursion = 0;
$x = debug_backtrace();
if ($x) {
foreach ($x as $n) {
if ($n['function'] === __FUNCTION__) {
$recursion ++;
}
}
}
if ($recursion > 5) {
logger('jsonld bomb detected at: ' . $url);
exit();
}
$result = Cache::get('documentLoader:' . $url);
if (!is_null($result)) {
return $result;
}
$data = jsonld_default_document_loader($url);
Cache::set('documentLoader:' . $url, $data, CACHE_DAY);
return $data;
}
public static function normalize($json)
{
jsonld_set_document_loader('Friendica\Util\JsonLD::documentLoader');
$jsonobj = json_decode(json_encode($json));
return jsonld_normalize($jsonobj, array('algorithm' => 'URDNA2015', 'format' => 'application/nquads'));
}
public static function compact($json)
{
jsonld_set_document_loader('Friendica\Util\JsonLD::documentLoader');
$context = (object)['as' => 'https://www.w3.org/ns/activitystreams',
'w3sec' => 'https://w3id.org/security',
'ostatus' => (object)['@id' => 'http://ostatus.org#', '@type' => '@id'],
'vcard' => (object)['@id' => 'http://www.w3.org/2006/vcard/ns#', '@type' => '@id'],
'uuid' => (object)['@id' => 'http://schema.org/identifier', '@type' => '@id']];
$jsonobj = json_decode(json_encode($json));
$compacted = jsonld_compact($jsonobj, $context);
return json_decode(json_encode($compacted), true);
}
}