Switch to parsing compacted JSON data
This commit is contained in:
Michael
parent
f8b74033a4
commit
3a74f3364d
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@ -52,7 +52,7 @@ class Processor
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$tag_text = '';
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foreach ($tags as $tag) {
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if (in_array($tag['type'], ['Mention', 'Hashtag'])) {
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if (in_array(defaults($tag, 'type', ''), ['Mention', 'Hashtag'])) {
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if (!empty($tag_text)) {
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$tag_text .= ',';
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}
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@ -210,9 +210,8 @@ class Processor
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$item = self::constructAttachList($activity['attachments'], $item);
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$source = JsonLD::fetchElement($activity, 'source', 'content', 'mediaType', 'text/bbcode');
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if (!empty($source)) {
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$item['body'] = $source;
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if (!empty($activity['source'])) {
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$item['body'] = $activity['source'];
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}
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$item['protocol'] = Conversation::PARCEL_ACTIVITYPUB;
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@ -36,6 +36,11 @@ use Friendica\Protocol\ActivityPub;
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*/
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class Receiver
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{
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const PUBLIC_COLLECTION = 'as:Public';
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const ACCOUNT_TYPES = ['as:Person', 'as:Organization', 'as:Service', 'as:Group', 'as:Application'];
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const CONTENT_TYPES = ['as:Note', 'as:Article', 'as:Video', 'as:Image'];
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const ACTIVITY_TYPES = ['as:Like', 'as:Dislike', 'as:Accept', 'as:Reject', 'as:TentativeAccept'];
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/**
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* Checks if the web request is done for the AP protocol
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*
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@ -48,7 +53,7 @@ class Receiver
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}
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/**
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*
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* Checks incoming message from the inbox
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*
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* @param $body
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* @param $header
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@ -66,14 +71,17 @@ class Receiver
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$activity = json_decode($body, true);
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$actor = JsonLD::fetchElement($activity, 'actor', 'id');
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logger('Message for user ' . $uid . ' is from actor ' . $actor, LOGGER_DEBUG);
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if (empty($activity)) {
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logger('Invalid body.', LOGGER_DEBUG);
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return;
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}
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$ldactivity = JsonLD::compact($activity);
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$actor = JsonLD::fetchElement($ldactivity, 'as:actor');
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logger('Message for user ' . $uid . ' is from actor ' . $actor, LOGGER_DEBUG);
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if (LDSignature::isSigned($activity)) {
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$ld_signer = LDSignature::getSigner($activity);
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if (empty($ld_signer)) {
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@ -100,7 +108,7 @@ class Receiver
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$trust_source = false;
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}
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self::processActivity($activity, $body, $uid, $trust_source);
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self::processActivity($activity, $ldactivity, $body, $uid, $trust_source);
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}
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/**
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@ -112,16 +120,18 @@ class Receiver
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*
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* @return
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*/
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private static function prepareObjectData($activity, $uid, &$trust_source)
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private static function prepareObjectData($activity, $ldactivity, $uid, &$trust_source)
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{
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$actor = JsonLD::fetchElement($activity, 'actor', 'id');
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$actor = JsonLD::fetchElement($ldactivity, 'as:actor');
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if (empty($actor)) {
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logger('Empty actor', LOGGER_DEBUG);
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return [];
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}
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$type = JsonLD::fetchElement($ldactivity, '@type');
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// Fetch all receivers from to, cc, bto and bcc
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$receivers = self::getReceivers($activity, $actor);
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$receivers = self::getReceivers($ldactivity, $actor);
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// When it is a delivery to a personal inbox we add that user to the receivers
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if (!empty($uid)) {
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@ -132,34 +142,34 @@ class Receiver
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logger('Receivers: ' . json_encode($receivers), LOGGER_DEBUG);
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$object_id = JsonLD::fetchElement($activity, 'object', 'id');
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$object_id = JsonLD::fetchElement($ldactivity, 'as:object');
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if (empty($object_id)) {
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logger('No object found', LOGGER_DEBUG);
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return [];
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}
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// Fetch the content only on activities where this matters
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if (in_array($activity['type'], ['Create', 'Announce'])) {
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$object_data = self::fetchObject($object_id, $activity['object'], $trust_source);
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if (in_array($type, ['as:Create', 'as:Announce'])) {
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$object_data = self::fetchObject($object_id, $activity['object'], $ldactivity['as:object'], $trust_source);
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if (empty($object_data)) {
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logger("Object data couldn't be processed", LOGGER_DEBUG);
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return [];
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}
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// We had been able to retrieve the object data - so we can trust the source
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$trust_source = true;
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} elseif (in_array($activity['type'], ['Like', 'Dislike'])) {
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} elseif (in_array($type, ['as:Like', 'as:Dislike'])) {
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// Create a mostly empty array out of the activity data (instead of the object).
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// This way we later don't have to check for the existence of ech individual array element.
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$object_data = self::processObject($activity);
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$object_data['name'] = $activity['type'];
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$object_data['author'] = $activity['actor'];
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$object_data = self::processObject($ldactivity);
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$object_data['name'] = $type;
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$object_data['author'] = JsonLD::fetchElement($ldactivity, 'as:actor');
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$object_data['object'] = $object_id;
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$object_data['object_type'] = ''; // Since we don't fetch the object, we don't know the type
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} else {
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$object_data = [];
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$object_data['id'] = $activity['id'];
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$object_data['id'] = JsonLD::fetchElement($ldactivity, '@id');
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$object_data['object'] = $activity['object'];
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$object_data['object_type'] = JsonLD::fetchElement($activity, 'object', 'type');
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$object_data['object_type'] = JsonLD::fetchElement($ldactivity, 'as:object', '@type');
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}
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$object_data = self::addActivityFields($object_data, $activity);
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@ -181,110 +191,115 @@ class Receiver
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* @param integer $uid User ID
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* @param $trust_source
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*/
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public static function processActivity($activity, $body = '', $uid = null, $trust_source = false)
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public static function processActivity($activity, $ldactivity = '', $body = '', $uid = null, $trust_source = false)
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{
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if (empty($activity['type'])) {
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if (empty($ldactivity)) {
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$ldactivity = JsonLD::compact($activity);
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}
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$type = JsonLD::fetchElement($ldactivity, '@type');
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if (!$type) {
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logger('Empty type', LOGGER_DEBUG);
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return;
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}
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if (empty($activity['object'])) {
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if (!JsonLD::fetchElement($ldactivity, 'as:object')) {
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logger('Empty object', LOGGER_DEBUG);
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return;
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}
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if (empty($activity['actor'])) {
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if (!JsonLD::fetchElement($ldactivity, 'as:actor')) {
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logger('Empty actor', LOGGER_DEBUG);
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return;
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}
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// $trust_source is called by reference and is set to true if the content was retrieved successfully
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$object_data = self::prepareObjectData($activity, $uid, $trust_source);
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$object_data = self::prepareObjectData($activity, $ldactivity, $uid, $trust_source);
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if (empty($object_data)) {
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logger('No object data found', LOGGER_DEBUG);
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return;
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}
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if (!$trust_source) {
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logger('No trust for activity type "' . $activity['type'] . '", so we quit now.', LOGGER_DEBUG);
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logger('No trust for activity type "' . $type . '", so we quit now.', LOGGER_DEBUG);
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return;
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}
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switch ($activity['type']) {
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case 'Create':
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case 'Announce':
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switch ($type) {
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case 'as:Create':
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case 'as:Announce':
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ActivityPub\Processor::createItem($object_data, $body);
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break;
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case 'Like':
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case 'as:Like':
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ActivityPub\Processor::likeItem($object_data, $body);
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break;
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case 'Dislike':
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case 'as:Dislike':
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ActivityPub\Processor::dislikeItem($object_data, $body);
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break;
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case 'Update':
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if (in_array($object_data['object_type'], ActivityPub::CONTENT_TYPES)) {
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case 'as:Update':
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if (in_array($object_data['object_type'], self::CONTENT_TYPES)) {
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/// @todo
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} elseif (in_array($object_data['object_type'], ActivityPub::ACCOUNT_TYPES)) {
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} elseif (in_array($object_data['object_type'], self::ACCOUNT_TYPES)) {
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ActivityPub\Processor::updatePerson($object_data, $body);
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}
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break;
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case 'Delete':
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if ($object_data['object_type'] == 'Tombstone') {
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case 'as:Delete':
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if ($object_data['object_type'] == 'as:Tombstone') {
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ActivityPub\Processor::deleteItem($object_data, $body);
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} elseif (in_array($object_data['object_type'], ActivityPub::ACCOUNT_TYPES)) {
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} elseif (in_array($object_data['object_type'], self::ACCOUNT_TYPES)) {
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ActivityPub\Processor::deletePerson($object_data, $body);
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}
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break;
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case 'Follow':
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case 'as:Follow':
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ActivityPub\Processor::followUser($object_data);
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break;
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case 'Accept':
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if ($object_data['object_type'] == 'Follow') {
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case 'as:Accept':
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if ($object_data['object_type'] == 'as:Follow') {
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ActivityPub\Processor::acceptFollowUser($object_data);
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}
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break;
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case 'Reject':
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if ($object_data['object_type'] == 'Follow') {
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case 'as:Reject':
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if ($object_data['object_type'] == 'as:Follow') {
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ActivityPub\Processor::rejectFollowUser($object_data);
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}
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break;
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case 'Undo':
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if ($object_data['object_type'] == 'Follow') {
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case 'as:Undo':
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if ($object_data['object_type'] == 'as:Follow') {
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ActivityPub\Processor::undoFollowUser($object_data);
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} elseif (in_array($object_data['object_type'], ActivityPub::ACTIVITY_TYPES)) {
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} elseif (in_array($object_data['object_type'], self::ACTIVITY_TYPES)) {
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ActivityPub\Processor::undoActivity($object_data);
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}
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break;
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default:
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logger('Unknown activity: ' . $activity['type'], LOGGER_DEBUG);
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logger('Unknown activity: ' . $type, LOGGER_DEBUG);
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break;
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}
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}
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/**
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*
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* Fetch the receiver list from an activity array
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*
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* @param array $activity
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* @param $actor
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* @param string $actor
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*
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* @return
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* @return array with receivers (user id)
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*/
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private static function getReceivers($activity, $actor)
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{
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$receivers = [];
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// When it is an answer, we inherite the receivers from the parent
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$replyto = JsonLD::fetchElement($activity, 'inReplyTo', 'id');
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$replyto = JsonLD::fetchElement($activity, 'as:inReplyTo');
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if (!empty($replyto)) {
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$parents = Item::select(['uid'], ['uri' => $replyto]);
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while ($parent = Item::fetch($parents)) {
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@ -302,22 +317,18 @@ class Receiver
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$followers = '';
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}
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foreach (['to', 'cc', 'bto', 'bcc'] as $element) {
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if (empty($activity[$element])) {
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foreach (['as:to', 'as:cc', 'as:bto', 'as:bcc'] as $element) {
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$receiver_list = JsonLD::fetchElementArray($activity, $element);
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if (empty($receiver_list)) {
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continue;
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}
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// The receiver can be an array or a string
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if (is_string($activity[$element])) {
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$activity[$element] = [$activity[$element]];
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}
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foreach ($activity[$element] as $receiver) {
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if ($receiver == ActivityPub::PUBLIC_COLLECTION) {
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foreach ($receiver_list as $receiver) {
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if ($receiver == self::PUBLIC_COLLECTION) {
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$receivers['uid:0'] = 0;
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}
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if (($receiver == ActivityPub::PUBLIC_COLLECTION) && !empty($actor)) {
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if (($receiver == self::PUBLIC_COLLECTION) && !empty($actor)) {
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// This will most likely catch all OStatus connections to Mastodon
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$condition = ['alias' => [$actor, normalise_link($actor)], 'rel' => [Contact::SHARING, Contact::FRIEND]
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, 'archive' => false, 'pending' => false];
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@ -330,7 +341,7 @@ class Receiver
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DBA::close($contacts);
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}
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if (in_array($receiver, [$followers, ActivityPub::PUBLIC_COLLECTION]) && !empty($actor)) {
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if (in_array($receiver, [$followers, self::PUBLIC_COLLECTION]) && !empty($actor)) {
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$condition = ['nurl' => normalise_link($actor), 'rel' => [Contact::SHARING, Contact::FRIEND],
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'network' => Protocol::ACTIVITYPUB, 'archive' => false, 'pending' => false];
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$contacts = DBA::select('contact', ['uid'], $condition);
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@ -453,9 +464,9 @@ class Receiver
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* @param $object
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* @param $trust_source
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*
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* @return
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* @return array with object data
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*/
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private static function fetchObject($object_id, $object = [], $trust_source = false)
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private static function fetchObject($object_id, $object = [], $ldobject = [], $trust_source = false)
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{
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if (!$trust_source || is_string($object)) {
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$data = ActivityPub::fetchContent($object_id);
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@ -463,6 +474,7 @@ class Receiver
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logger('Empty content for ' . $object_id . ', check if content is available locally.', LOGGER_DEBUG);
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$data = $object_id;
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} else {
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$ldobject = JsonLD::compact($data);
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logger('Fetched content for ' . $object_id, LOGGER_DEBUG);
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}
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} else {
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@ -478,6 +490,7 @@ class Receiver
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}
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logger('Using already stored item for url ' . $object_id, LOGGER_DEBUG);
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$data = ActivityPub\Transmitter::createNote($item);
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$ldobject = JsonLD::compact($data);
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}
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if (empty($data['type'])) {
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@ -486,7 +499,7 @@ class Receiver
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}
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if (in_array($data['type'], ActivityPub::CONTENT_TYPES)) {
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return self::processObject($data);
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return self::processObject($ldobject);
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}
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if ($data['type'] == 'Announce') {
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@ -500,55 +513,107 @@ class Receiver
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}
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/**
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* Convert tags from JSON-LD format into a simplified format
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*
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* @param array $tags Tags in JSON-LD format
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*
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* @param $object
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* @return array with tags in a simplified format
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*/
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private static function processTags($tags)
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{
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$taglist = [];
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foreach ($tags as $tag) {
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$taglist[] = ['type' => str_replace('as:', '', JsonLD::fetchElement($tag, '@type')),
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'href' => JsonLD::fetchElement($tag, 'as:href'),
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'name' => JsonLD::fetchElement($tag, 'as:name')];
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}
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return $taglist;
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}
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/**
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* Convert attachments from JSON-LD format into a simplified format
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*
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* @return
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* @param array $attachments Attachments in JSON-LD format
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*
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* @return array with attachmants in a simplified format
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*/
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private static function processAttachments($attachments)
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{
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$attachlist = [];
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foreach ($attachments as $attachment) {
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$attachlist[] = ['type' => str_replace('as:', '', JsonLD::fetchElement($attachment, '@type')),
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'mediaType' => JsonLD::fetchElement($attachment, 'as:mediaType'),
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'name' => JsonLD::fetchElement($attachment, 'as:name'),
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'url' => JsonLD::fetchElement($attachment, 'as:url')];
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}
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return $attachlist;
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}
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/**
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* Fetches data from the object part of an activity
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*
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* @param array $object
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*
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* @return array
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*/
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private static function processObject($object)
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{
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if (empty($object['id'])) {
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if (!JsonLD::fetchElement($object, '@id')) {
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return false;
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}
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$object_data = [];
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$object_data['object_type'] = $object['type'];
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$object_data['id'] = $object['id'];
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$object_data['object_type'] = JsonLD::fetchElement($object, '@type');
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$object_data['id'] = JsonLD::fetchElement($object, '@id');
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if (!empty($object['inReplyTo'])) {
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$object_data['reply-to-id'] = JsonLD::fetchElement($object, 'inReplyTo', 'id');
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} else {
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$object_data['reply-to-id'] = JsonLD::fetchElement($object, 'as:inReplyTo');
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if (empty($object_data['reply-to-id'])) {
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$object_data['reply-to-id'] = $object_data['id'];
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}
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$object_data['published'] = defaults($object, 'published', null);
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$object_data['updated'] = defaults($object, 'updated', $object_data['published']);
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$object_data['published'] = JsonLD::fetchElement($object, 'as:published', '@value');
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$object_data['updated'] = JsonLD::fetchElement($object, 'as:updated', '@value');
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if (empty($object_data['updated'])) {
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$object_data['updated'] = $object_data['published'];
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}
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if (empty($object_data['published']) && !empty($object_data['updated'])) {
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$object_data['published'] = $object_data['updated'];
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}
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$actor = JsonLD::fetchElement($object, 'attributedTo', 'id');
|
||||
$actor = JsonLD::fetchElement($object, 'as:attributedTo');
|
||||
if (empty($actor)) {
|
||||
$actor = defaults($object, 'actor', null);
|
||||
$actor = JsonLD::fetchElement($object, 'as:actor');
|
||||
}
|
||||
|
||||
$object_data['diaspora:guid'] = defaults($object, 'diaspora:guid', null);
|
||||
$object_data['diaspora:guid'] = JsonLD::fetchElement($object, 'diaspora:guid');
|
||||
$object_data['diaspora:comment'] = JsonLD::fetchElement($object, 'diaspora:comment');
|
||||
$object_data['owner'] = $object_data['author'] = $actor;
|
||||
$object_data['context'] = defaults($object, 'context', null);
|
||||
$object_data['conversation'] = defaults($object, 'conversation', null);
|
||||
$object_data['sensitive'] = defaults($object, 'sensitive', null);
|
||||
$object_data['name'] = defaults($object, 'title', null);
|
||||
$object_data['name'] = defaults($object, 'name', $object_data['name']);
|
||||
$object_data['summary'] = defaults($object, 'summary', null);
|
||||
$object_data['content'] = defaults($object, 'content', null);
|
||||
$object_data['source'] = defaults($object, 'source', null);
|
||||
$object_data['location'] = JsonLD::fetchElement($object, 'location', 'name', 'type', 'Place');
|
||||
$object_data['attachments'] = defaults($object, 'attachment', null);
|
||||
$object_data['tags'] = defaults($object, 'tag', null);
|
||||
$object_data['service'] = JsonLD::fetchElement($object, 'instrument', 'name', 'type', 'Service');
|
||||
$object_data['alternate-url'] = JsonLD::fetchElement($object, 'url', 'href');
|
||||
$object_data['context'] = JsonLD::fetchElement($object, 'as:context');
|
||||
$object_data['conversation'] = JsonLD::fetchElement($object, 'ostatus:conversation');
|
||||
$object_data['sensitive'] = JsonLD::fetchElement($object, 'as:sensitive');
|
||||
$object_data['name'] = JsonLD::fetchElement($object, 'as:name');
|
||||
$object_data['summary'] = JsonLD::fetchElement($object, 'as:summary');
|
||||
$object_data['content'] = JsonLD::fetchElement($object, 'as:content');
|
||||
$object_data['source'] = JsonLD::fetchElement($object, 'as:source', 'as:content', 'as:mediaType', 'text/bbcode');
|
||||
$object_data['location'] = JsonLD::fetchElement($object, 'as:location', 'as:name', '@type', 'as:Place');
|
||||
$object_data['attachments'] = self::processAttachments(JsonLD::fetchElementArray($object, 'as:attachment'));
|
||||
$object_data['tags'] = self::processTags(JsonLD::fetchElementArray($object, 'as:tag'));
|
||||
// $object_data['service'] = JsonLD::fetchElement($object, 'instrument', 'name', 'type', 'Service'); // todo
|
||||
$object_data['service'] = null;
|
||||
$object_data['alternate-url'] = JsonLD::fetchElement($object, 'as:url');
|
||||
|
||||
// Special treatment for Hubzilla links
|
||||
if (is_array($object_data['alternate-url'])) {
|
||||
if (!empty($object['as:url'])) {
|
||||
$object_data['alternate-url'] = JsonLD::fetchElement($object['as:url'], 'as:href');
|
||||
} else {
|
||||
$object_data['alternate-url'] = null;
|
||||
}
|
||||
}
|
||||
|
||||
$object_data['receiver'] = self::getReceivers($object, $object_data['owner']);
|
||||
|
||||
// Common object data:
|
||||
|
|
|
|||
|
|
@ -29,6 +29,10 @@ use Friendica\Core\Cache;
|
|||
*
|
||||
* To-Do:
|
||||
*
|
||||
* Missing object fields:
|
||||
* - service (App)
|
||||
* - location
|
||||
*
|
||||
* Missing object types:
|
||||
* - Event
|
||||
*
|
||||
|
|
|
|||
|
|
@ -82,10 +82,13 @@ class JsonLD
|
|||
{
|
||||
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'],
|
||||
$context = (object)['as' => 'https://www.w3.org/ns/activitystreams#',
|
||||
'w3id' => 'https://w3id.org/security#',
|
||||
'vcard' => (object)['@id' => 'http://www.w3.org/2006/vcard/ns#', '@type' => '@id'],
|
||||
'ostatus' => (object)['@id' => 'http://ostatus.org#', '@type' => '@id'],
|
||||
'diaspora' => (object)['@id' => 'https://diasporafoundation.org/ns/', '@type' => '@id'],
|
||||
'dc' => (object)['@id' => 'http://purl.org/dc/terms/', '@type' => '@id'],
|
||||
'dc' => (object)['@id' => 'http://purl.org/dc/terms/', '@type' => '@id'],
|
||||
'uuid' => (object)['@id' => 'http://schema.org/identifier', '@type' => '@id']];
|
||||
|
||||
$jsonobj = json_decode(json_encode($json, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE));
|
||||
|
|
@ -95,6 +98,45 @@ class JsonLD
|
|||
return json_decode(json_encode($compacted, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE), true);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Fetches an element array from a JSON array
|
||||
*
|
||||
* @param $array
|
||||
* @param $element
|
||||
* @param $key
|
||||
*
|
||||
* @return fetched element array
|
||||
*/
|
||||
public static function fetchElementArray($array, $element, $key = '@id')
|
||||
{
|
||||
if (empty($array)) {
|
||||
return null;
|
||||
}
|
||||
|
||||
if (!isset($array[$element])) {
|
||||
return null;
|
||||
}
|
||||
|
||||
// If it isn't an array yet, make it to one
|
||||
if (!is_int(key($array[$element]))) {
|
||||
$array[$element] = [$array[$element]];
|
||||
}
|
||||
|
||||
$elements = [];
|
||||
|
||||
foreach ($array[$element] as $entry) {
|
||||
if (!is_array($entry)) {
|
||||
$elements[] = $entry;
|
||||
} elseif (!empty($entry[$key])) {
|
||||
$elements[] = $entry[$key];
|
||||
} else {
|
||||
$elements[] = $entry;
|
||||
}
|
||||
}
|
||||
|
||||
return $elements;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Fetches an element from a JSON array
|
||||
*
|
||||
|
|
@ -106,38 +148,40 @@ class JsonLD
|
|||
*
|
||||
* @return fetched element
|
||||
*/
|
||||
public static function fetchElement($array, $element, $key, $type = null, $type_value = null)
|
||||
public static function fetchElement($array, $element, $key = '@id', $type = null, $type_value = null)
|
||||
{
|
||||
if (empty($array)) {
|
||||
return false;
|
||||
return null;
|
||||
}
|
||||
|
||||
if (empty($array[$element])) {
|
||||
return false;
|
||||
if (!isset($array[$element])) {
|
||||
return null;
|
||||
}
|
||||
|
||||
if (is_string($array[$element])) {
|
||||
if (!is_array($array[$element])) {
|
||||
return $array[$element];
|
||||
}
|
||||
|
||||
if (is_null($type_value)) {
|
||||
if (!empty($array[$element][$key])) {
|
||||
return $array[$element][$key];
|
||||
if (is_null($type) || is_null($type_value)) {
|
||||
$element_array = self::fetchElementArray($array, $element, $key);
|
||||
if (is_null($element_array)) {
|
||||
return null;
|
||||
}
|
||||
|
||||
if (!empty($array[$element][0][$key])) {
|
||||
return $array[$element][0][$key];
|
||||
return array_shift($element_array);
|
||||
}
|
||||
|
||||
return false;
|
||||
$element_array = self::fetchElementArray($array, $element);
|
||||
if (is_null($element_array)) {
|
||||
return null;
|
||||
}
|
||||
|
||||
if (!empty($array[$element][$key]) && !empty($array[$element][$type]) && ($array[$element][$type] == $type_value)) {
|
||||
return $array[$element][$key];
|
||||
foreach ($element_array as $entry) {
|
||||
if (isset($entry[$key]) && isset($entry[$type]) && ($entry[$type] == $type_value)) {
|
||||
return $entry[$key];
|
||||
}
|
||||
}
|
||||
|
||||
/// @todo Add array search
|
||||
|
||||
return false;
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user