*/
namespace Friendica\Protocol;
-use Friendica\Database\DBA;
-use Friendica\Core\System;
-use Friendica\BaseObject;
+use Friendica\Util\JsonLD;
use Friendica\Util\Network;
-use Friendica\Util\HTTPSignature;
use Friendica\Core\Protocol;
-use Friendica\Model\Conversation;
-use Friendica\Model\Contact;
use Friendica\Model\APContact;
-use Friendica\Model\Item;
-use Friendica\Model\Profile;
-use Friendica\Model\Term;
use Friendica\Model\User;
-use Friendica\Util\DateTimeFormat;
-use Friendica\Util\Crypto;
-use Friendica\Content\Text\BBCode;
-use Friendica\Content\Text\HTML;
-use Friendica\Util\JsonLD;
-use Friendica\Util\LDSignature;
-use Friendica\Core\Config;
+use Friendica\Util\HTTPSignature;
/**
* @brief ActivityPub Protocol class
* Mastodon implementation of supported activities:
* https://github.com/tootsuite/mastodon/blob/master/app/lib/activitypub/activity.rb#L26
*
- * To-do:
- *
- * Receiver:
- * - Update (Image, Video, Article, Note)
- * - Event
- * - Undo Announce
- *
- * Check what this is meant to do:
- * - Add
- * - Block
- * - Flag
- * - Remove
- * - Undo Block
- * - Undo Accept (Problem: This could invert a contact accept or an event accept)
- *
- * Transmitter:
- * - Event
+ * Funkwhale:
+ * http://docs-funkwhale-funkwhale-549-music-federation-documentation.preview.funkwhale.audio/federation/index.html
*
- * Complicated:
- * - Announce
- * - Undo Announce
- *
- * General:
- * - Attachments
- * - nsfw (sensitive)
- * - Queueing unsucessful deliveries
+ * To-do:
* - Polling the outboxes for missing content?
- * - Possibly using the LD-JSON parser
+ *
+ * Missing parts from DFRN:
+ * - Public Forum
+ * - Private Forum
+ * - Relocation
*/
class ActivityPub
{
const PUBLIC_COLLECTION = 'https://www.w3.org/ns/activitystreams#Public';
const CONTEXT = ['https://www.w3.org/ns/activitystreams', 'https://w3id.org/security/v1',
['vcard' => 'http://www.w3.org/2006/vcard/ns#',
+ 'dfrn' => 'http://purl.org/macgirvin/dfrn/1.0/',
'diaspora' => 'https://diasporafoundation.org/ns/',
+ 'litepub' => 'http://litepub.social/ns#',
'manuallyApprovesFollowers' => 'as:manuallyApprovesFollowers',
- 'sensitive' => 'as:sensitive', 'Hashtag' => 'as:Hashtag']];
+ 'sensitive' => 'as:sensitive', 'Hashtag' => 'as:Hashtag',
+ 'directMessage' => 'litepub:directMessage']];
const ACCOUNT_TYPES = ['Person', 'Organization', 'Service', 'Group', 'Application'];
- const CONTENT_TYPES = ['Note', 'Article', 'Video', 'Image'];
- const ACTIVITY_TYPES = ['Like', 'Dislike', 'Accept', 'Reject', 'TentativeAccept'];
/**
- * @brief Checks if the web request is done for the AP protocol
+ * Checks if the web request is done for the AP protocol
*
- * @return is it AP?
+ * @return bool is it AP?
*/
public static function isRequest()
{
}
/**
- * Return the ActivityPub profile of the given user
- *
- * @param integer $uid User ID
- * @return profile array
- */
- public static function profile($uid)
- {
- $condition = ['uid' => $uid, 'blocked' => false, 'account_expired' => false,
- 'account_removed' => false, 'verified' => true];
- $fields = ['guid', 'nickname', 'pubkey', 'account-type', 'page-flags'];
- $user = DBA::selectFirst('user', $fields, $condition);
- if (!DBA::isResult($user)) {
- return [];
- }
-
- $fields = ['locality', 'region', 'country-name'];
- $profile = DBA::selectFirst('profile', $fields, ['uid' => $uid, 'is-default' => true]);
- if (!DBA::isResult($profile)) {
- return [];
- }
-
- $fields = ['name', 'url', 'location', 'about', 'avatar'];
- $contact = DBA::selectFirst('contact', $fields, ['uid' => $uid, 'self' => true]);
- if (!DBA::isResult($contact)) {
- return [];
- }
-
- $data = ['@context' => self::CONTEXT];
- $data['id'] = $contact['url'];
- $data['diaspora:guid'] = $user['guid'];
- $data['type'] = self::ACCOUNT_TYPES[$user['account-type']];
- $data['following'] = System::baseUrl() . '/following/' . $user['nickname'];
- $data['followers'] = System::baseUrl() . '/followers/' . $user['nickname'];
- $data['inbox'] = System::baseUrl() . '/inbox/' . $user['nickname'];
- $data['outbox'] = System::baseUrl() . '/outbox/' . $user['nickname'];
- $data['preferredUsername'] = $user['nickname'];
- $data['name'] = $contact['name'];
- $data['vcard:hasAddress'] = ['@type' => 'vcard:Home', 'vcard:country-name' => $profile['country-name'],
- 'vcard:region' => $profile['region'], 'vcard:locality' => $profile['locality']];
- $data['summary'] = $contact['about'];
- $data['url'] = $contact['url'];
- $data['manuallyApprovesFollowers'] = in_array($user['page-flags'], [Contact::PAGE_NORMAL, Contact::PAGE_PRVGROUP]);
- $data['publicKey'] = ['id' => $contact['url'] . '#main-key',
- 'owner' => $contact['url'],
- 'publicKeyPem' => $user['pubkey']];
- $data['endpoints'] = ['sharedInbox' => System::baseUrl() . '/inbox'];
- $data['icon'] = ['type' => 'Image',
- 'url' => $contact['avatar']];
-
- // tags: https://kitty.town/@inmysocks/100656097926961126.json
- return $data;
- }
-
- /**
- * @brief Returns an array with permissions of a given item array
- *
- * @param array $item
- *
- * @return array with permissions
- */
- private static function fetchPermissionBlockFromConversation($item)
- {
- if (empty($item['thr-parent'])) {
- return [];
- }
-
- $condition = ['item-uri' => $item['thr-parent'], 'protocol' => Conversation::PARCEL_ACTIVITYPUB];
- $conversation = DBA::selectFirst('conversation', ['source'], $condition);
- if (!DBA::isResult($conversation)) {
- return [];
- }
-
- $activity = json_decode($conversation['source'], true);
-
- $actor = JsonLD::fetchElement($activity, 'actor', 'id');
- $profile = APContact::getByURL($actor);
-
- $item_profile = APContact::getByURL($item['author-link']);
- $exclude[] = $item['author-link'];
-
- if ($item['gravity'] == GRAVITY_PARENT) {
- $exclude[] = $item['owner-link'];
- }
-
- $permissions['to'][] = $actor;
-
- foreach (['to', 'cc', 'bto', 'bcc'] as $element) {
- if (empty($activity[$element])) {
- continue;
- }
- if (is_string($activity[$element])) {
- $activity[$element] = [$activity[$element]];
- }
-
- foreach ($activity[$element] as $receiver) {
- if ($receiver == $profile['followers'] && !empty($item_profile['followers'])) {
- $receiver = $item_profile['followers'];
- }
- if (!in_array($receiver, $exclude)) {
- $permissions[$element][] = $receiver;
- }
- }
- }
- return $permissions;
- }
-
- /**
- * @brief Creates an array of permissions from an item thread
- *
- * @param array $item
- *
- * @return permission array
- */
- public static function createPermissionBlockForItem($item)
- {
- $data = ['to' => [], 'cc' => []];
-
- $data = array_merge($data, self::fetchPermissionBlockFromConversation($item));
-
- $actor_profile = APContact::getByURL($item['author-link']);
-
- $terms = Term::tagArrayFromItemId($item['id'], TERM_MENTION);
-
- $contacts[$item['author-link']] = $item['author-link'];
-
- if (!$item['private']) {
- $data['to'][] = self::PUBLIC_COLLECTION;
- if (!empty($actor_profile['followers'])) {
- $data['cc'][] = $actor_profile['followers'];
- }
-
- foreach ($terms as $term) {
- $profile = APContact::getByURL($term['url'], false);
- if (!empty($profile) && empty($contacts[$profile['url']])) {
- $data['cc'][] = $profile['url'];
- $contacts[$profile['url']] = $profile['url'];
- }
- }
- } else {
- $receiver_list = Item::enumeratePermissions($item);
-
- $mentioned = [];
-
- foreach ($terms as $term) {
- $cid = Contact::getIdForURL($term['url'], $item['uid']);
- if (!empty($cid) && in_array($cid, $receiver_list)) {
- $contact = DBA::selectFirst('contact', ['url'], ['id' => $cid, 'network' => Protocol::ACTIVITYPUB]);
- $data['to'][] = $contact['url'];
- $contacts[$contact['url']] = $contact['url'];
- }
- }
-
- foreach ($receiver_list as $receiver) {
- $contact = DBA::selectFirst('contact', ['url'], ['id' => $receiver, 'network' => Protocol::ACTIVITYPUB]);
- if (empty($contacts[$contact['url']])) {
- $data['cc'][] = $contact['url'];
- $contacts[$contact['url']] = $contact['url'];
- }
- }
- }
-
- $parents = Item::select(['id', 'author-link', 'owner-link', 'gravity'], ['parent' => $item['parent']]);
- while ($parent = Item::fetch($parents)) {
- // Don't include data from future posts
- if ($parent['id'] >= $item['id']) {
- continue;
- }
-
- $profile = APContact::getByURL($parent['author-link'], false);
- if (!empty($profile) && empty($contacts[$profile['url']])) {
- $data['cc'][] = $profile['url'];
- $contacts[$profile['url']] = $profile['url'];
- }
-
- if ($item['gravity'] != GRAVITY_PARENT) {
- continue;
- }
-
- $profile = APContact::getByURL($parent['owner-link'], false);
- if (!empty($profile) && empty($contacts[$profile['url']])) {
- $data['cc'][] = $profile['url'];
- $contacts[$profile['url']] = $profile['url'];
- }
- }
- DBA::close($parents);
-
- if (empty($data['to'])) {
- $data['to'] = $data['cc'];
- $data['cc'] = [];
- }
-
- return $data;
- }
-
- /**
- * @brief Fetches a list of inboxes of followers of a given user
- *
- * @param integer $uid User ID
+ * Fetches ActivityPub content from the given url
*
- * @return array of follower inboxes
+ * @param string $url content url
+ * @param integer $uid User ID for the signature
+ * @return array
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
- public static function fetchTargetInboxesforUser($uid)
+ public static function fetchContent($url, $uid = 0)
{
- $inboxes = [];
-
- $condition = ['uid' => $uid, 'network' => Protocol::ACTIVITYPUB, 'archive' => false, 'pending' => false];
-
if (!empty($uid)) {
- $condition['rel'] = [Contact::FOLLOWER, Contact::FRIEND];
- }
-
- $contacts = DBA::select('contact', ['notify', 'batch'], $condition);
- while ($contact = DBA::fetch($contacts)) {
- $contact = defaults($contact, 'batch', $contact['notify']);
- $inboxes[$contact] = $contact;
- }
- DBA::close($contacts);
-
- return $inboxes;
- }
-
- /**
- * @brief Fetches an array of inboxes for the given item and user
- *
- * @param array $item
- * @param integer $uid User ID
- *
- * @return array with inboxes
- */
- public static function fetchTargetInboxes($item, $uid)
- {
- $permissions = self::createPermissionBlockForItem($item);
- if (empty($permissions)) {
- return [];
- }
-
- $inboxes = [];
-
- if ($item['gravity'] == GRAVITY_ACTIVITY) {
- $item_profile = APContact::getByURL($item['author-link']);
- } else {
- $item_profile = APContact::getByURL($item['owner-link']);
+ return HTTPSignature::fetch($url, $uid);
}
- foreach (['to', 'cc', 'bto', 'bcc'] as $element) {
- if (empty($permissions[$element])) {
- continue;
- }
-
- foreach ($permissions[$element] as $receiver) {
- if ($receiver == $item_profile['followers']) {
- $inboxes = self::fetchTargetInboxesforUser($uid);
- } else {
- $profile = APContact::getByURL($receiver);
- if (!empty($profile)) {
- $target = defaults($profile, 'sharedinbox', $profile['inbox']);
- $inboxes[$target] = $target;
- }
- }
- }
+ $curlResult = Network::curl($url, false, ['accept_content' => 'application/activity+json, application/ld+json']);
+ if (!$curlResult->isSuccess() || empty($curlResult->getBody())) {
+ return false;
}
- return $inboxes;
- }
+ $content = json_decode($curlResult->getBody(), true);
- /**
- * @brief Returns the activity type of a given item
- *
- * @param array $item
- *
- * @return activity type
- */
- public static function getTypeOfItem($item)
- {
- if ($item['verb'] == ACTIVITY_POST) {
- if ($item['created'] == $item['edited']) {
- $type = 'Create';
- } else {
- $type = 'Update';
- }
- } elseif ($item['verb'] == ACTIVITY_LIKE) {
- $type = 'Like';
- } elseif ($item['verb'] == ACTIVITY_DISLIKE) {
- $type = 'Dislike';
- } elseif ($item['verb'] == ACTIVITY_ATTEND) {
- $type = 'Accept';
- } elseif ($item['verb'] == ACTIVITY_ATTENDNO) {
- $type = 'Reject';
- } elseif ($item['verb'] == ACTIVITY_ATTENDMAYBE) {
- $type = 'TentativeAccept';
- } else {
- $type = '';
+ if (empty($content) || !is_array($content)) {
+ return false;
}
- return $type;
+ return $content;
}
- /**
- * @brief Creates an activity array for a given item id
- *
- * @param integer $item_id
- * @param boolean $object_mode Is the activity item is used inside another object?
- *
- * @return array of activity
- */
- public static function createActivityFromItem($item_id, $object_mode = false)
+ private static function getAccountType($apcontact)
{
- $item = Item::selectFirst([], ['id' => $item_id, 'parent-network' => Protocol::NATIVE_SUPPORT]);
-
- if (!DBA::isResult($item)) {
- return false;
- }
-
- $condition = ['item-uri' => $item['uri'], 'protocol' => Conversation::PARCEL_ACTIVITYPUB];
- $conversation = DBA::selectFirst('conversation', ['source'], $condition);
- if (DBA::isResult($conversation)) {
- $data = json_decode($conversation['source']);
- if (!empty($data)) {
- return $data;
- }
- }
-
- $type = self::getTypeOfItem($item);
-
- if (!$object_mode) {
- $data = ['@context' => self::CONTEXT];
+ $accounttype = -1;
- if ($item['deleted'] && ($item['gravity'] == GRAVITY_ACTIVITY)) {
- $type = 'Undo';
- } elseif ($item['deleted']) {
- $type = 'Delete';
- }
- } else {
- $data = [];
- }
-
- $data['id'] = $item['uri'] . '#' . $type;
- $data['type'] = $type;
- $data['actor'] = $item['author-link'];
-
- $data['published'] = DateTimeFormat::utc($item["created"]."+00:00", DateTimeFormat::ATOM);
-
- if ($item["created"] != $item["edited"]) {
- $data['updated'] = DateTimeFormat::utc($item["edited"]."+00:00", DateTimeFormat::ATOM);
- }
-
- $data['context'] = self::fetchContextURLForItem($item);
-
- $data = array_merge($data, ActivityPub::createPermissionBlockForItem($item));
-
- if (in_array($data['type'], ['Create', 'Update', 'Announce', 'Delete'])) {
- $data['object'] = self::createNote($item);
- } elseif ($data['type'] == 'Undo') {
- $data['object'] = self::createActivityFromItem($item_id, true);
- } else {
- $data['object'] = $item['thr-parent'];
+ switch($apcontact['type']) {
+ case 'Person':
+ $accounttype = User::ACCOUNT_TYPE_PERSON;
+ break;
+ case 'Organization':
+ $accounttype = User::ACCOUNT_TYPE_ORGANISATION;
+ break;
+ case 'Service':
+ $accounttype = User::ACCOUNT_TYPE_NEWS;
+ break;
+ case 'Group':
+ $accounttype = User::ACCOUNT_TYPE_COMMUNITY;
+ break;
+ case 'Application':
+ $accounttype = User::ACCOUNT_TYPE_RELAY;
+ break;
}
- $owner = User::getOwnerDataById($item['uid']);
-
- if (!$object_mode) {
- return LDSignature::sign($data, $owner);
- } else {
- return $data;
- }
+ return $accounttype;
}
/**
- * @brief Creates an object array for a given item id
- *
- * @param integer $item_id
+ * Fetches a profile from the given url into an array that is compatible to Probe::uri
*
- * @return object array
+ * @param string $url profile url
+ * @param boolean $update Update the profile
+ * @return array
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
+ * @throws \ImagickException
*/
- public static function createObjectFromItemID($item_id)
+ public static function probeProfile($url, $update = true)
{
- $item = Item::selectFirst([], ['id' => $item_id, 'parent-network' => Protocol::NATIVE_SUPPORT]);
-
- if (!DBA::isResult($item)) {
+ $apcontact = APContact::getByURL($url, $update);
+ if (empty($apcontact)) {
return false;
}
- $data = ['@context' => self::CONTEXT];
- $data = array_merge($data, self::createNote($item));
-
- return $data;
- }
-
- /**
- * @brief Returns a tag array for a given item array
- *
- * @param array $item
- *
- * @return array of tags
- */
- private static function createTagList($item)
- {
- $tags = [];
+ $profile = ['network' => Protocol::ACTIVITYPUB];
+ $profile['nick'] = $apcontact['nick'];
+ $profile['name'] = $apcontact['name'];
+ $profile['guid'] = $apcontact['uuid'];
+ $profile['url'] = $apcontact['url'];
+ $profile['addr'] = $apcontact['addr'];
+ $profile['alias'] = $apcontact['alias'];
+ $profile['following'] = $apcontact['following'];
+ $profile['followers'] = $apcontact['followers'];
+ $profile['inbox'] = $apcontact['inbox'];
+ $profile['outbox'] = $apcontact['outbox'];
+ $profile['sharedinbox'] = $apcontact['sharedinbox'];
+ $profile['photo'] = $apcontact['photo'];
+ $profile['account-type'] = self::getAccountType($apcontact);
+ $profile['community'] = ($profile['account-type'] == User::ACCOUNT_TYPE_COMMUNITY);
+ // $profile['keywords']
+ // $profile['location']
+ $profile['about'] = $apcontact['about'];
+ $profile['batch'] = $apcontact['sharedinbox'];
+ $profile['notify'] = $apcontact['inbox'];
+ $profile['poll'] = $apcontact['outbox'];
+ $profile['pubkey'] = $apcontact['pubkey'];
+ $profile['baseurl'] = $apcontact['baseurl'];
- $terms = Term::tagArrayFromItemId($item['id'], TERM_MENTION);
- foreach ($terms as $term) {
- $contact = Contact::getDetailsByURL($term['url']);
- if (!empty($contact['addr'])) {
- $mention = '@' . $contact['addr'];
- } else {
- $mention = '@' . $term['url'];
+ // Remove all "null" fields
+ foreach ($profile as $field => $content) {
+ if (is_null($content)) {
+ unset($profile[$field]);
}
-
- $tags[] = ['type' => 'Mention', 'href' => $term['url'], 'name' => $mention];
}
- return $tags;
- }
- /**
- * @brief Fetches the "context" value for a givem item array from the "conversation" table
- *
- * @param array $item
- *
- * @return string with context url
- */
- private static function fetchContextURLForItem($item)
- {
- $conversation = DBA::selectFirst('conversation', ['conversation-href', 'conversation-uri'], ['item-uri' => $item['parent-uri']]);
- if (DBA::isResult($conversation) && !empty($conversation['conversation-href'])) {
- $context_uri = $conversation['conversation-href'];
- } elseif (DBA::isResult($conversation) && !empty($conversation['conversation-uri'])) {
- $context_uri = $conversation['conversation-uri'];
- } else {
- $context_uri = str_replace('/objects/', '/context/', $item['parent-uri']);
- }
- return $context_uri;
+ return $profile;
}
/**
- * @brief Creates a note/article object array
+ * Fetches activities from the outbox of a given profile and processes it
*
- * @param array $item
- *
- * @return object array
+ * @param string $url
+ * @param integer $uid User ID
+ * @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
- private static function createNote($item)
+ public static function fetchOutbox($url, $uid)
{
- if (!empty($item['title'])) {
- $type = 'Article';
- } else {
- $type = 'Note';
- }
-
- if ($item['deleted']) {
- $type = 'Tombstone';
- }
-
- $data = [];
- $data['id'] = $item['uri'];
- $data['type'] = $type;
-
- if ($item['deleted']) {
- return $data;
+ $data = self::fetchContent($url);
+ if (empty($data)) {
+ return;
}
- $data['summary'] = null; // Ignore by now
-
- if ($item['uri'] != $item['thr-parent']) {
- $data['inReplyTo'] = $item['thr-parent'];
+ if (!empty($data['orderedItems'])) {
+ $items = $data['orderedItems'];
+ } elseif (!empty($data['first']['orderedItems'])) {
+ $items = $data['first']['orderedItems'];
+ } elseif (!empty($data['first'])) {
+ self::fetchOutbox($data['first'], $uid);
+ return;
} else {
- $data['inReplyTo'] = null;
- }
-
- $data['diaspora:guid'] = $item['guid'];
- $data['published'] = DateTimeFormat::utc($item["created"]."+00:00", DateTimeFormat::ATOM);
-
- if ($item["created"] != $item["edited"]) {
- $data['updated'] = DateTimeFormat::utc($item["edited"]."+00:00", DateTimeFormat::ATOM);
- }
-
- $data['url'] = $item['plink'];
- $data['attributedTo'] = $item['author-link'];
- $data['actor'] = $item['author-link'];
- $data['sensitive'] = false; // - Query NSFW
- $data['context'] = self::fetchContextURLForItem($item);
-
- if (!empty($item['title'])) {
- $data['name'] = BBCode::convert($item['title'], false, 7);
+ $items = [];
}
- $data['content'] = BBCode::convert($item['body'], false, 7);
- $data['source'] = ['content' => $item['body'], 'mediaType' => "text/bbcode"];
-
- if (!empty($item['signed_text']) && ($item['uri'] != $item['thr-parent'])) {
- $data['diaspora:comment'] = $item['signed_text'];
+ foreach ($items as $activity) {
+ $ldactivity = JsonLD::compact($activity);
+ ActivityPub\Receiver::processActivity($ldactivity, '', $uid, true);
}
-
- $data['attachment'] = []; // @ToDo
- $data['tag'] = self::createTagList($item);
- $data = array_merge($data, ActivityPub::createPermissionBlockForItem($item));
-
- return $data;
- }
-
- /**
- * @brief Transmits a profile deletion to a given inbox
- *
- * @param integer $uid User ID
- * @param string $inbox Target inbox
- */
- public static function transmitProfileDeletion($uid, $inbox)
- {
- $owner = User::getOwnerDataById($uid);
- $profile = APContact::getByURL($owner['url']);
-
- $data = ['@context' => 'https://www.w3.org/ns/activitystreams',
- 'id' => System::baseUrl() . '/activity/' . System::createGUID(),
- 'type' => 'Delete',
- 'actor' => $owner['url'],
- 'object' => self::profile($uid),
- 'published' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
- 'to' => [self::PUBLIC_COLLECTION],
- 'cc' => []];
-
- $signed = LDSignature::sign($data, $owner);
-
- logger('Deliver profile deletion for user ' . $uid . ' to ' . $inbox .' via ActivityPub', LOGGER_DEBUG);
- HTTPSignature::transmit($signed, $inbox, $uid);
- }
-
- /**
- * @brief Transmits a profile change to a given inbox
- *
- * @param integer $uid User ID
- * @param string $inbox Target inbox
- */
- public static function transmitProfileUpdate($uid, $inbox)
- {
- $owner = User::getOwnerDataById($uid);
- $profile = APContact::getByURL($owner['url']);
-
- $data = ['@context' => 'https://www.w3.org/ns/activitystreams',
- 'id' => System::baseUrl() . '/activity/' . System::createGUID(),
- 'type' => 'Update',
- 'actor' => $owner['url'],
- 'object' => self::profile($uid),
- 'published' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
- 'to' => [$profile['followers']],
- 'cc' => []];
-
- $signed = LDSignature::sign($data, $owner);
-
- logger('Deliver profile update for user ' . $uid . ' to ' . $inbox .' via ActivityPub', LOGGER_DEBUG);
- HTTPSignature::transmit($signed, $inbox, $uid);
- }
-
- /**
- * @brief Transmits a given activity to a target
- *
- * @param array $activity
- * @param string $target Target profile
- * @param integer $uid User ID
- */
- public static function transmitActivity($activity, $target, $uid)
- {
- $profile = APContact::getByURL($target);
-
- $owner = User::getOwnerDataById($uid);
-
- $data = ['@context' => 'https://www.w3.org/ns/activitystreams',
- 'id' => System::baseUrl() . '/activity/' . System::createGUID(),
- 'type' => $activity,
- 'actor' => $owner['url'],
- 'object' => $profile['url'],
- 'to' => $profile['url']];
-
- logger('Sending activity ' . $activity . ' to ' . $target . ' for user ' . $uid, LOGGER_DEBUG);
-
- $signed = LDSignature::sign($data, $owner);
- HTTPSignature::transmit($signed, $profile['inbox'], $uid);
- }
-
- /**
- * @brief Transmit a message that the contact request had been accepted
- *
- * @param string $target Target profile
- * @param $id
- * @param integer $uid User ID
- */
- public static function transmitContactAccept($target, $id, $uid)
- {
- $profile = APContact::getByURL($target);
-
- $owner = User::getOwnerDataById($uid);
- $data = ['@context' => 'https://www.w3.org/ns/activitystreams',
- 'id' => System::baseUrl() . '/activity/' . System::createGUID(),
- 'type' => 'Accept',
- 'actor' => $owner['url'],
- 'object' => ['id' => $id, 'type' => 'Follow',
- 'actor' => $profile['url'],
- 'object' => $owner['url']],
- 'to' => $profile['url']];
-
- logger('Sending accept to ' . $target . ' for user ' . $uid . ' with id ' . $id, LOGGER_DEBUG);
-
- $signed = LDSignature::sign($data, $owner);
- HTTPSignature::transmit($signed, $profile['inbox'], $uid);
- }
-
- /**
- * @brief
- *
- * @param string $target Target profile
- * @param $id
- * @param integer $uid User ID
- */
- public static function transmitContactReject($target, $id, $uid)
- {
- $profile = APContact::getByURL($target);
-
- $owner = User::getOwnerDataById($uid);
- $data = ['@context' => 'https://www.w3.org/ns/activitystreams',
- 'id' => System::baseUrl() . '/activity/' . System::createGUID(),
- 'type' => 'Reject',
- 'actor' => $owner['url'],
- 'object' => ['id' => $id, 'type' => 'Follow',
- 'actor' => $profile['url'],
- 'object' => $owner['url']],
- 'to' => $profile['url']];
-
- logger('Sending reject to ' . $target . ' for user ' . $uid . ' with id ' . $id, LOGGER_DEBUG);
-
- $signed = LDSignature::sign($data, $owner);
- HTTPSignature::transmit($signed, $profile['inbox'], $uid);
- }
-
- /**
- * @brief
- *
- * @param string $target Target profile
- * @param integer $uid User ID
- */
- public static function transmitContactUndo($target, $uid)
- {
- $profile = APContact::getByURL($target);
-
- $id = System::baseUrl() . '/activity/' . System::createGUID();
-
- $owner = User::getOwnerDataById($uid);
- $data = ['@context' => 'https://www.w3.org/ns/activitystreams',
- 'id' => $id,
- 'type' => 'Undo',
- 'actor' => $owner['url'],
- 'object' => ['id' => $id, 'type' => 'Follow',
- 'actor' => $owner['url'],
- 'object' => $profile['url']],
- 'to' => $profile['url']];
-
- logger('Sending undo to ' . $target . ' for user ' . $uid . ' with id ' . $id, LOGGER_DEBUG);
-
- $signed = LDSignature::sign($data, $owner);
- HTTPSignature::transmit($signed, $profile['inbox'], $uid);
- }
-
- /**
- * Fetches ActivityPub content from the given url
- *
- * @param string $url content url
- * @return array
- */
- public static function fetchContent($url)
- {
- $ret = Network::curl($url, false, $redirects, ['accept_content' => 'application/activity+json, application/ld+json']);
- if (!$ret['success'] || empty($ret['body'])) {
- return false;
- }
-
- return json_decode($ret['body'], true);
- }
-
- /**
- * Fetches a profile from the given url into an array that is compatible to Probe::uri
- *
- * @param string $url profile url
- * @return array
- */
- public static function probeProfile($url)
- {
- $apcontact = APContact::getByURL($url, true);
- if (empty($apcontact)) {
- return false;
- }
-
- $profile = ['network' => Protocol::ACTIVITYPUB];
- $profile['nick'] = $apcontact['nick'];
- $profile['name'] = $apcontact['name'];
- $profile['guid'] = $apcontact['uuid'];
- $profile['url'] = $apcontact['url'];
- $profile['addr'] = $apcontact['addr'];
- $profile['alias'] = $apcontact['alias'];
- $profile['photo'] = $apcontact['photo'];
- // $profile['community']
- // $profile['keywords']
- // $profile['location']
- $profile['about'] = $apcontact['about'];
- $profile['batch'] = $apcontact['sharedinbox'];
- $profile['notify'] = $apcontact['inbox'];
- $profile['poll'] = $apcontact['outbox'];
- $profile['pubkey'] = $apcontact['pubkey'];
- $profile['baseurl'] = $apcontact['baseurl'];
-
- // Remove all "null" fields
- foreach ($profile as $field => $content) {
- if (is_null($content)) {
- unset($profile[$field]);
- }
- }
-
- return $profile;
- }
-
- /**
- * @brief
- *
- * @param $body
- * @param $header
- * @param integer $uid User ID
- */
- public static function processInbox($body, $header, $uid)
- {
- $http_signer = HTTPSignature::getSigner($body, $header);
- if (empty($http_signer)) {
- logger('Invalid HTTP signature, message will be discarded.', LOGGER_DEBUG);
- return;
- } else {
- logger('HTTP signature is signed by ' . $http_signer, LOGGER_DEBUG);
- }
-
- $activity = json_decode($body, true);
-
- $actor = JsonLD::fetchElement($activity, 'actor', 'id');
- logger('Message for user ' . $uid . ' is from actor ' . $actor, LOGGER_DEBUG);
-
- if (empty($activity)) {
- logger('Invalid body.', LOGGER_DEBUG);
- return;
- }
-
- if (LDSignature::isSigned($activity)) {
- $ld_signer = LDSignature::getSigner($activity);
- if (empty($ld_signer)) {
- logger('Invalid JSON-LD signature from ' . $actor, LOGGER_DEBUG);
- }
- if (!empty($ld_signer && ($actor == $http_signer))) {
- logger('The HTTP and the JSON-LD signature belong to ' . $ld_signer, LOGGER_DEBUG);
- $trust_source = true;
- } elseif (!empty($ld_signer)) {
- logger('JSON-LD signature is signed by ' . $ld_signer, LOGGER_DEBUG);
- $trust_source = true;
- } elseif ($actor == $http_signer) {
- logger('Bad JSON-LD signature, but HTTP signer fits the actor.', LOGGER_DEBUG);
- $trust_source = true;
- } else {
- logger('Invalid JSON-LD signature and the HTTP signer is different.', LOGGER_DEBUG);
- $trust_source = false;
- }
- } elseif ($actor == $http_signer) {
- logger('Trusting post without JSON-LD signature, The actor fits the HTTP signer.', LOGGER_DEBUG);
- $trust_source = true;
- } else {
- logger('No JSON-LD signature, different actor.', LOGGER_DEBUG);
- $trust_source = false;
- }
-
- self::processActivity($activity, $body, $uid, $trust_source);
- }
-
- /**
- * @brief
- *
- * @param $url
- * @param integer $uid User ID
- */
- public static function fetchOutbox($url, $uid)
- {
- $data = self::fetchContent($url);
- if (empty($data)) {
- return;
- }
-
- if (!empty($data['orderedItems'])) {
- $items = $data['orderedItems'];
- } elseif (!empty($data['first']['orderedItems'])) {
- $items = $data['first']['orderedItems'];
- } elseif (!empty($data['first'])) {
- self::fetchOutbox($data['first'], $uid);
- return;
- } else {
- $items = [];
- }
-
- foreach ($items as $activity) {
- self::processActivity($activity, '', $uid, true);
- }
- }
-
- /**
- * @brief
- *
- * @param array $activity
- * @param integer $uid User ID
- * @param $trust_source
- *
- * @return
- */
- private static function prepareObjectData($activity, $uid, &$trust_source)
- {
- $actor = JsonLD::fetchElement($activity, 'actor', 'id');
- if (empty($actor)) {
- logger('Empty actor', LOGGER_DEBUG);
- return [];
- }
-
- // Fetch all receivers from to, cc, bto and bcc
- $receivers = self::getReceivers($activity, $actor);
-
- // When it is a delivery to a personal inbox we add that user to the receivers
- if (!empty($uid)) {
- $owner = User::getOwnerDataById($uid);
- $additional = ['uid:' . $uid => $uid];
- $receivers = array_merge($receivers, $additional);
- }
-
- logger('Receivers: ' . json_encode($receivers), LOGGER_DEBUG);
-
- $object_id = JsonLD::fetchElement($activity, 'object', 'id');
- if (empty($object_id)) {
- logger('No object found', LOGGER_DEBUG);
- return [];
- }
-
- // Fetch the content only on activities where this matters
- if (in_array($activity['type'], ['Create', 'Announce'])) {
- $object_data = self::fetchObject($object_id, $activity['object'], $trust_source);
- if (empty($object_data)) {
- logger("Object data couldn't be processed", LOGGER_DEBUG);
- return [];
- }
- // We had been able to retrieve the object data - so we can trust the source
- $trust_source = true;
- } elseif (in_array($activity['type'], ['Like', 'Dislike'])) {
- // Create a mostly empty array out of the activity data (instead of the object).
- // This way we later don't have to check for the existence of ech individual array element.
- $object_data = self::processObject($activity);
- $object_data['name'] = $activity['type'];
- $object_data['author'] = $activity['actor'];
- $object_data['object'] = $object_id;
- $object_data['object_type'] = ''; // Since we don't fetch the object, we don't know the type
- } else {
- $object_data = [];
- $object_data['id'] = $activity['id'];
- $object_data['object'] = $activity['object'];
- $object_data['object_type'] = JsonLD::fetchElement($activity, 'object', 'type');
- }
-
- $object_data = self::addActivityFields($object_data, $activity);
-
- $object_data['type'] = $activity['type'];
- $object_data['owner'] = $actor;
- $object_data['receiver'] = array_merge(defaults($object_data, 'receiver', []), $receivers);
-
- logger('Processing ' . $object_data['type'] . ' ' . $object_data['object_type'] . ' ' . $object_data['id'], LOGGER_DEBUG);
-
- return $object_data;
- }
-
- /**
- * @brief
- *
- * @param array $activity
- * @param $body
- * @param integer $uid User ID
- * @param $trust_source
- */
- private static function processActivity($activity, $body = '', $uid = null, $trust_source = false)
- {
- if (empty($activity['type'])) {
- logger('Empty type', LOGGER_DEBUG);
- return;
- }
-
- if (empty($activity['object'])) {
- logger('Empty object', LOGGER_DEBUG);
- return;
- }
-
- if (empty($activity['actor'])) {
- logger('Empty actor', LOGGER_DEBUG);
- return;
-
- }
-
- // $trust_source is called by reference and is set to true if the content was retrieved successfully
- $object_data = self::prepareObjectData($activity, $uid, $trust_source);
- if (empty($object_data)) {
- logger('No object data found', LOGGER_DEBUG);
- return;
- }
-
- if (!$trust_source) {
- logger('No trust for activity type "' . $activity['type'] . '", so we quit now.', LOGGER_DEBUG);
- }
-
- switch ($activity['type']) {
- case 'Create':
- case 'Announce':
- self::createItem($object_data, $body);
- break;
-
- case 'Like':
- self::likeItem($object_data, $body);
- break;
-
- case 'Dislike':
- self::dislikeItem($object_data, $body);
- break;
-
- case 'Update':
- if (in_array($object_data['object_type'], self::CONTENT_TYPES)) {
- /// @todo
- } elseif (in_array($object_data['object_type'], self::ACCOUNT_TYPES)) {
- self::updatePerson($object_data, $body);
- }
- break;
-
- case 'Delete':
- if ($object_data['object_type'] == 'Tombstone') {
- self::deleteItem($object_data, $body);
- } elseif (in_array($object_data['object_type'], self::ACCOUNT_TYPES)) {
- self::deletePerson($object_data, $body);
- }
- break;
-
- case 'Follow':
- self::followUser($object_data);
- break;
-
- case 'Accept':
- if ($object_data['object_type'] == 'Follow') {
- self::acceptFollowUser($object_data);
- }
- break;
-
- case 'Reject':
- if ($object_data['object_type'] == 'Follow') {
- self::rejectFollowUser($object_data);
- }
- break;
-
- case 'Undo':
- if ($object_data['object_type'] == 'Follow') {
- self::undoFollowUser($object_data);
- } elseif (in_array($object_data['object_type'], self::ACTIVITY_TYPES)) {
- self::undoActivity($object_data);
- }
- break;
-
- default:
- logger('Unknown activity: ' . $activity['type'], LOGGER_DEBUG);
- break;
- }
- }
-
- /**
- * @brief
- *
- * @param array $activity
- * @param $actor
- *
- * @return
- */
- private static function getReceivers($activity, $actor)
- {
- $receivers = [];
-
- // When it is an answer, we inherite the receivers from the parent
- $replyto = JsonLD::fetchElement($activity, 'inReplyTo', 'id');
- if (!empty($replyto)) {
- $parents = Item::select(['uid'], ['uri' => $replyto]);
- while ($parent = Item::fetch($parents)) {
- $receivers['uid:' . $parent['uid']] = $parent['uid'];
- }
- }
-
- if (!empty($actor)) {
- $profile = APContact::getByURL($actor);
- $followers = defaults($profile, 'followers', '');
-
- logger('Actor: ' . $actor . ' - Followers: ' . $followers, LOGGER_DEBUG);
- } else {
- logger('Empty actor', LOGGER_DEBUG);
- $followers = '';
- }
-
- foreach (['to', 'cc', 'bto', 'bcc'] as $element) {
- if (empty($activity[$element])) {
- continue;
- }
-
- // The receiver can be an array or a string
- if (is_string($activity[$element])) {
- $activity[$element] = [$activity[$element]];
- }
-
- foreach ($activity[$element] as $receiver) {
- if ($receiver == self::PUBLIC_COLLECTION) {
- $receivers['uid:0'] = 0;
- }
-
- if (($receiver == self::PUBLIC_COLLECTION) && !empty($actor)) {
- // This will most likely catch all OStatus connections to Mastodon
- $condition = ['alias' => [$actor, normalise_link($actor)], 'rel' => [Contact::SHARING, Contact::FRIEND]
- , 'archive' => false, 'pending' => false];
- $contacts = DBA::select('contact', ['uid'], $condition);
- while ($contact = DBA::fetch($contacts)) {
- if ($contact['uid'] != 0) {
- $receivers['uid:' . $contact['uid']] = $contact['uid'];
- }
- }
- DBA::close($contacts);
- }
-
- if (in_array($receiver, [$followers, self::PUBLIC_COLLECTION]) && !empty($actor)) {
- $condition = ['nurl' => normalise_link($actor), 'rel' => [Contact::SHARING, Contact::FRIEND],
- 'network' => Protocol::ACTIVITYPUB, 'archive' => false, 'pending' => false];
- $contacts = DBA::select('contact', ['uid'], $condition);
- while ($contact = DBA::fetch($contacts)) {
- if ($contact['uid'] != 0) {
- $receivers['uid:' . $contact['uid']] = $contact['uid'];
- }
- }
- DBA::close($contacts);
- continue;
- }
-
- $condition = ['self' => true, 'nurl' => normalise_link($receiver)];
- $contact = DBA::selectFirst('contact', ['uid'], $condition);
- if (!DBA::isResult($contact)) {
- continue;
- }
- $receivers['uid:' . $contact['uid']] = $contact['uid'];
- }
- }
-
- self::switchContacts($receivers, $actor);
-
- return $receivers;
- }
-
- /**
- * @brief
- *
- * @param $cid
- * @param integer $uid User ID
- * @param $url
- */
- private static function switchContact($cid, $uid, $url)
- {
- $profile = ActivityPub::probeProfile($url);
- if (empty($profile)) {
- return;
- }
-
- logger('Switch contact ' . $cid . ' (' . $profile['url'] . ') for user ' . $uid . ' from OStatus to ActivityPub');
-
- $photo = $profile['photo'];
- unset($profile['photo']);
- unset($profile['baseurl']);
-
- $profile['nurl'] = normalise_link($profile['url']);
- DBA::update('contact', $profile, ['id' => $cid]);
-
- Contact::updateAvatar($photo, $uid, $cid);
- }
-
- /**
- * @brief
- *
- * @param $receivers
- * @param $actor
- */
- private static function switchContacts($receivers, $actor)
- {
- if (empty($actor)) {
- return;
- }
-
- foreach ($receivers as $receiver) {
- $contact = DBA::selectFirst('contact', ['id'], ['uid' => $receiver, 'network' => Protocol::OSTATUS, 'nurl' => normalise_link($actor)]);
- if (DBA::isResult($contact)) {
- self::switchContact($contact['id'], $receiver, $actor);
- }
-
- $contact = DBA::selectFirst('contact', ['id'], ['uid' => $receiver, 'network' => Protocol::OSTATUS, 'alias' => [normalise_link($actor), $actor]]);
- if (DBA::isResult($contact)) {
- self::switchContact($contact['id'], $receiver, $actor);
- }
- }
- }
-
- /**
- * @brief
- *
- * @param $object_data
- * @param array $activity
- *
- * @return
- */
- private static function addActivityFields($object_data, $activity)
- {
- if (!empty($activity['published']) && empty($object_data['published'])) {
- $object_data['published'] = $activity['published'];
- }
-
- if (!empty($activity['updated']) && empty($object_data['updated'])) {
- $object_data['updated'] = $activity['updated'];
- }
-
- if (!empty($activity['inReplyTo']) && empty($object_data['parent-uri'])) {
- $object_data['parent-uri'] = JsonLD::fetchElement($activity, 'inReplyTo', 'id');
- }
-
- if (!empty($activity['instrument'])) {
- $object_data['service'] = JsonLD::fetchElement($activity, 'instrument', 'name', 'type', 'Service');
- }
- return $object_data;
- }
-
- /**
- * @brief
- *
- * @param $object_id
- * @param $object
- * @param $trust_source
- *
- * @return
- */
- private static function fetchObject($object_id, $object = [], $trust_source = false)
- {
- if (!$trust_source || is_string($object)) {
- $data = self::fetchContent($object_id);
- if (empty($data)) {
- logger('Empty content for ' . $object_id . ', check if content is available locally.', LOGGER_DEBUG);
- $data = $object_id;
- } else {
- logger('Fetched content for ' . $object_id, LOGGER_DEBUG);
- }
- } else {
- logger('Using original object for url ' . $object_id, LOGGER_DEBUG);
- $data = $object;
- }
-
- if (is_string($data)) {
- $item = Item::selectFirst([], ['uri' => $data]);
- if (!DBA::isResult($item)) {
- logger('Object with url ' . $data . ' was not found locally.', LOGGER_DEBUG);
- return false;
- }
- logger('Using already stored item for url ' . $object_id, LOGGER_DEBUG);
- $data = self::createNote($item);
- }
-
- if (empty($data['type'])) {
- logger('Empty type', LOGGER_DEBUG);
- return false;
- }
-
- if (in_array($data['type'], self::CONTENT_TYPES)) {
- return self::processObject($data);
- }
-
- if ($data['type'] == 'Announce') {
- if (empty($data['object'])) {
- return false;
- }
- return self::fetchObject($data['object']);
- }
-
- logger('Unhandled object type: ' . $data['type'], LOGGER_DEBUG);
- }
-
- /**
- * @brief
- *
- * @param $object
- *
- * @return
- */
- private static function processObject($object)
- {
- if (empty($object['id'])) {
- return false;
- }
-
- $object_data = [];
- $object_data['object_type'] = $object['type'];
- $object_data['id'] = $object['id'];
-
- if (!empty($object['inReplyTo'])) {
- $object_data['reply-to-id'] = JsonLD::fetchElement($object, 'inReplyTo', 'id');
- } else {
- $object_data['reply-to-id'] = $object_data['id'];
- }
-
- $object_data['published'] = defaults($object, 'published', null);
- $object_data['updated'] = defaults($object, 'updated', $object_data['published']);
-
- if (empty($object_data['published']) && !empty($object_data['updated'])) {
- $object_data['published'] = $object_data['updated'];
- }
-
- $actor = JsonLD::fetchElement($object, 'attributedTo', 'id');
- if (empty($actor)) {
- $actor = defaults($object, 'actor', null);
- }
-
- $object_data['diaspora:guid'] = defaults($object, 'diaspora:guid', null);
- $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');
- $object_data['receiver'] = self::getReceivers($object, $object_data['owner']);
-
- // Common object data:
-
- // Unhandled
- // @context, type, actor, signature, mediaType, duration, replies, icon
-
- // Also missing: (Defined in the standard, but currently unused)
- // audience, preview, endTime, startTime, generator, image
-
- // Data in Notes:
-
- // Unhandled
- // contentMap, announcement_count, announcements, context_id, likes, like_count
- // inReplyToStatusId, shares, quoteUrl, statusnetConversationId
-
- // Data in video:
-
- // To-Do?
- // category, licence, language, commentsEnabled
-
- // Unhandled
- // views, waitTranscoding, state, support, subtitleLanguage
- // likes, dislikes, shares, comments
-
- return $object_data;
- }
-
- /**
- * @brief Converts mentions from Pleroma into the Friendica format
- *
- * @param string $body
- *
- * @return converted body
- */
- private static function convertMentions($body)
- {
- $URLSearchString = "^\[\]";
- $body = preg_replace("/\[url\=([$URLSearchString]*)\]([#@!])(.*?)\[\/url\]/ism", '$2[url=$1]$3[/url]', $body);
-
- return $body;
- }
-
- /**
- * @brief Constructs a string with tags for a given tag array
- *
- * @param array $tags
- * @param boolean $sensitive
- *
- * @return string with tags
- */
- private static function constructTagList($tags, $sensitive)
- {
- if (empty($tags)) {
- return '';
- }
-
- $tag_text = '';
- foreach ($tags as $tag) {
- if (in_array($tag['type'], ['Mention', 'Hashtag'])) {
- if (!empty($tag_text)) {
- $tag_text .= ',';
- }
-
- $tag_text .= substr($tag['name'], 0, 1) . '[url=' . $tag['href'] . ']' . substr($tag['name'], 1) . '[/url]';
- }
- }
-
- /// @todo add nsfw for $sensitive
-
- return $tag_text;
- }
-
- /**
- * @brief
- *
- * @param $attachments
- * @param array $item
- *
- * @return item array
- */
- private static function constructAttachList($attachments, $item)
- {
- if (empty($attachments)) {
- return $item;
- }
-
- foreach ($attachments as $attach) {
- $filetype = strtolower(substr($attach['mediaType'], 0, strpos($attach['mediaType'], '/')));
- if ($filetype == 'image') {
- $item['body'] .= "\n[img]".$attach['url'].'[/img]';
- } else {
- if (!empty($item["attach"])) {
- $item["attach"] .= ',';
- } else {
- $item["attach"] = '';
- }
- if (!isset($attach['length'])) {
- $attach['length'] = "0";
- }
- $item["attach"] .= '[attach]href="'.$attach['url'].'" length="'.$attach['length'].'" type="'.$attach['mediaType'].'" title="'.defaults($attach, 'name', '').'"[/attach]';
- }
- }
-
- return $item;
- }
-
- /**
- * @brief
- *
- * @param array $activity
- * @param $body
- */
- private static function createItem($activity, $body)
- {
- $item = [];
- $item['verb'] = ACTIVITY_POST;
- $item['parent-uri'] = $activity['reply-to-id'];
-
- if ($activity['reply-to-id'] == $activity['id']) {
- $item['gravity'] = GRAVITY_PARENT;
- $item['object-type'] = ACTIVITY_OBJ_NOTE;
- } else {
- $item['gravity'] = GRAVITY_COMMENT;
- $item['object-type'] = ACTIVITY_OBJ_COMMENT;
- }
-
- if (($activity['id'] != $activity['reply-to-id']) && !Item::exists(['uri' => $activity['reply-to-id']])) {
- logger('Parent ' . $activity['reply-to-id'] . ' not found. Try to refetch it.');
- self::fetchMissingActivity($activity['reply-to-id'], $activity);
- }
-
- self::postItem($activity, $item, $body);
- }
-
- /**
- * @brief
- *
- * @param array $activity
- * @param $body
- */
- private static function likeItem($activity, $body)
- {
- $item = [];
- $item['verb'] = ACTIVITY_LIKE;
- $item['parent-uri'] = $activity['object'];
- $item['gravity'] = GRAVITY_ACTIVITY;
- $item['object-type'] = ACTIVITY_OBJ_NOTE;
-
- self::postItem($activity, $item, $body);
- }
-
- /**
- * @brief Delete items
- *
- * @param array $activity
- * @param $body
- */
- private static function deleteItem($activity)
- {
- $owner = Contact::getIdForURL($activity['owner']);
- $object = JsonLD::fetchElement($activity, 'object', 'id');
- logger('Deleting item ' . $object . ' from ' . $owner, LOGGER_DEBUG);
- Item::delete(['uri' => $object, 'owner-id' => $owner]);
- }
-
- /**
- * @brief
- *
- * @param array $activity
- * @param $body
- */
- private static function dislikeItem($activity, $body)
- {
- $item = [];
- $item['verb'] = ACTIVITY_DISLIKE;
- $item['parent-uri'] = $activity['object'];
- $item['gravity'] = GRAVITY_ACTIVITY;
- $item['object-type'] = ACTIVITY_OBJ_NOTE;
-
- self::postItem($activity, $item, $body);
- }
-
- /**
- * @brief
- *
- * @param array $activity
- * @param array $item
- * @param $body
- */
- private static function postItem($activity, $item, $body)
- {
- /// @todo What to do with $activity['context']?
-
- if (($item['gravity'] != GRAVITY_PARENT) && !Item::exists(['uri' => $item['parent-uri']])) {
- logger('Parent ' . $item['parent-uri'] . ' not found, message will be discarded.', LOGGER_DEBUG);
- return;
- }
-
- $item['network'] = Protocol::ACTIVITYPUB;
- $item['private'] = !in_array(0, $activity['receiver']);
- $item['author-id'] = Contact::getIdForURL($activity['author'], 0, true);
- $item['owner-id'] = Contact::getIdForURL($activity['owner'], 0, true);
- $item['uri'] = $activity['id'];
- $item['created'] = $activity['published'];
- $item['edited'] = $activity['updated'];
- $item['guid'] = $activity['diaspora:guid'];
- $item['title'] = HTML::toBBCode($activity['name']);
- $item['content-warning'] = HTML::toBBCode($activity['summary']);
- $item['body'] = self::convertMentions(HTML::toBBCode($activity['content']));
- $item['location'] = $activity['location'];
- $item['tag'] = self::constructTagList($activity['tags'], $activity['sensitive']);
- $item['app'] = $activity['service'];
- $item['plink'] = defaults($activity, 'alternate-url', $item['uri']);
-
- $item = self::constructAttachList($activity['attachments'], $item);
-
- $source = JsonLD::fetchElement($activity, 'source', 'content', 'mediaType', 'text/bbcode');
- if (!empty($source)) {
- $item['body'] = $source;
- }
-
- $item['protocol'] = Conversation::PARCEL_ACTIVITYPUB;
- $item['source'] = $body;
- $item['conversation-href'] = $activity['context'];
- $item['conversation-uri'] = $activity['conversation'];
-
- foreach ($activity['receiver'] as $receiver) {
- $item['uid'] = $receiver;
- $item['contact-id'] = Contact::getIdForURL($activity['author'], $receiver, true);
-
- if (($receiver != 0) && empty($item['contact-id'])) {
- $item['contact-id'] = Contact::getIdForURL($activity['author'], 0, true);
- }
-
- $item_id = Item::insert($item);
- logger('Storing for user ' . $item['uid'] . ': ' . $item_id);
- }
- }
-
- /**
- * @brief
- *
- * @param $url
- * @param $child
- */
- private static function fetchMissingActivity($url, $child)
- {
- if (Config::get('system', 'ostatus_full_threads')) {
- return;
- }
-
- $object = ActivityPub::fetchContent($url);
- if (empty($object)) {
- logger('Activity ' . $url . ' was not fetchable, aborting.');
- return;
- }
-
- $activity = [];
- $activity['@context'] = $object['@context'];
- unset($object['@context']);
- $activity['id'] = $object['id'];
- $activity['to'] = defaults($object, 'to', []);
- $activity['cc'] = defaults($object, 'cc', []);
- $activity['actor'] = $child['author'];
- $activity['object'] = $object;
- $activity['published'] = $object['published'];
- $activity['type'] = 'Create';
-
- self::processActivity($activity);
- logger('Activity ' . $url . ' had been fetched and processed.');
- }
-
- /**
- * @brief perform a "follow" request
- *
- * @param array $activity
- */
- private static function followUser($activity)
- {
- $actor = JsonLD::fetchElement($activity, 'object', 'id');
- $uid = User::getIdForURL($actor);
- if (empty($uid)) {
- return;
- }
-
- $owner = User::getOwnerDataById($uid);
-
- $cid = Contact::getIdForURL($activity['owner'], $uid);
- if (!empty($cid)) {
- $contact = DBA::selectFirst('contact', [], ['id' => $cid]);
- } else {
- $contact = false;
- }
-
- $item = ['author-id' => Contact::getIdForURL($activity['owner']),
- 'author-link' => $activity['owner']];
-
- Contact::addRelationship($owner, $contact, $item);
- $cid = Contact::getIdForURL($activity['owner'], $uid);
- if (empty($cid)) {
- return;
- }
-
- $contact = DBA::selectFirst('contact', ['network'], ['id' => $cid]);
- if ($contact['network'] != Protocol::ACTIVITYPUB) {
- Contact::updateFromProbe($cid, Protocol::ACTIVITYPUB);
- }
-
- DBA::update('contact', ['hub-verify' => $activity['id']], ['id' => $cid]);
- logger('Follow user ' . $uid . ' from contact ' . $cid . ' with id ' . $activity['id']);
- }
-
- /**
- * @brief Update the given profile
- *
- * @param array $activity
- */
- private static function updatePerson($activity)
- {
- if (empty($activity['object']['id'])) {
- return;
- }
-
- logger('Updating profile for ' . $activity['object']['id'], LOGGER_DEBUG);
- APContact::getByURL($activity['object']['id'], true);
- }
-
- /**
- * @brief Delete the given profile
- *
- * @param array $activity
- */
- private static function deletePerson($activity)
- {
- if (empty($activity['object']['id']) || empty($activity['object']['actor'])) {
- logger('Empty object id or actor.', LOGGER_DEBUG);
- return;
- }
-
- if ($activity['object']['id'] != $activity['object']['actor']) {
- logger('Object id does not match actor.', LOGGER_DEBUG);
- return;
- }
-
- $contacts = DBA::select('contact', ['id'], ['nurl' => normalise_link($activity['object']['id'])]);
- while ($contact = DBA::fetch($contacts)) {
- Contact::remove($contact["id"]);
- }
- DBA::close($contacts);
-
- logger('Deleted contact ' . $activity['object']['id'], LOGGER_DEBUG);
- }
-
- /**
- * @brief Accept a follow request
- *
- * @param array $activity
- */
- private static function acceptFollowUser($activity)
- {
- $actor = JsonLD::fetchElement($activity, 'object', 'actor');
- $uid = User::getIdForURL($actor);
- if (empty($uid)) {
- return;
- }
-
- $owner = User::getOwnerDataById($uid);
-
- $cid = Contact::getIdForURL($activity['owner'], $uid);
- if (empty($cid)) {
- logger('No contact found for ' . $activity['owner'], LOGGER_DEBUG);
- return;
- }
-
- $fields = ['pending' => false];
-
- $contact = DBA::selectFirst('contact', ['rel'], ['id' => $cid]);
- if ($contact['rel'] == Contact::FOLLOWER) {
- $fields['rel'] = Contact::FRIEND;
- }
-
- $condition = ['id' => $cid];
- DBA::update('contact', $fields, $condition);
- logger('Accept contact request from contact ' . $cid . ' for user ' . $uid, LOGGER_DEBUG);
- }
-
- /**
- * @brief Reject a follow request
- *
- * @param array $activity
- */
- private static function rejectFollowUser($activity)
- {
- $actor = JsonLD::fetchElement($activity, 'object', 'actor');
- $uid = User::getIdForURL($actor);
- if (empty($uid)) {
- return;
- }
-
- $owner = User::getOwnerDataById($uid);
-
- $cid = Contact::getIdForURL($activity['owner'], $uid);
- if (empty($cid)) {
- logger('No contact found for ' . $activity['owner'], LOGGER_DEBUG);
- return;
- }
-
- if (DBA::exists('contact', ['id' => $cid, 'rel' => Contact::SHARING, 'pending' => true])) {
- Contact::remove($cid);
- logger('Rejected contact request from contact ' . $cid . ' for user ' . $uid . ' - contact had been removed.', LOGGER_DEBUG);
- } else {
- logger('Rejected contact request from contact ' . $cid . ' for user ' . $uid . '.', LOGGER_DEBUG);
- }
- }
-
- /**
- * @brief Undo activity like "like" or "dislike"
- *
- * @param array $activity
- */
- private static function undoActivity($activity)
- {
- $activity_url = JsonLD::fetchElement($activity, 'object', 'id');
- if (empty($activity_url)) {
- return;
- }
-
- $actor = JsonLD::fetchElement($activity, 'object', 'actor');
- if (empty($actor)) {
- return;
- }
-
- $author_id = Contact::getIdForURL($actor);
- if (empty($author_id)) {
- return;
- }
-
- Item::delete(['uri' => $activity_url, 'author-id' => $author_id, 'gravity' => GRAVITY_ACTIVITY]);
- }
-
- /**
- * @brief Activity to remove a follower
- *
- * @param array $activity
- */
- private static function undoFollowUser($activity)
- {
- $object = JsonLD::fetchElement($activity, 'object', 'object');
- $uid = User::getIdForURL($object);
- if (empty($uid)) {
- return;
- }
-
- $owner = User::getOwnerDataById($uid);
-
- $cid = Contact::getIdForURL($activity['owner'], $uid);
- if (empty($cid)) {
- logger('No contact found for ' . $activity['owner'], LOGGER_DEBUG);
- return;
- }
-
- $contact = DBA::selectFirst('contact', [], ['id' => $cid]);
- if (!DBA::isResult($contact)) {
- return;
- }
-
- Contact::removeFollower($owner, $contact);
- logger('Undo following request from contact ' . $cid . ' for user ' . $uid, LOGGER_DEBUG);
}
}
projects / friendica.git / blobdiff