[ActivityPub] Caching of Following/Followers interactions and collections
Follow interaction: - Fixed mini-bug where the subscriber profile was being used as the subscribed - Updated cache subscription-related values in both instances - Tested and working with local GS instances Unfollow interaction: - Updated cache subscription-related values in both instances - Tested and working with local GS instances Followers/Following collections: - Now returning ActivityPub profiles only - Stored collections in cache Misc: - Fix bug concerning the retrieval of public/private-key after in-function generation
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brunoccast
parent
90cb222af5
commit
25390bf96f
@ -387,7 +387,7 @@ class ActivityPubPlugin extends Plugin
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ActivityPubPlugin::actor_uri($object->getProfile()),
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'application/activity+json'
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);
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$xrd->links[] = clone ($link);
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$xrd->links[] = clone($link);
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}
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}
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@ -559,8 +559,7 @@ class ActivityPubPlugin extends Plugin
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* @throws HTTP_Request2_Exception
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* @author Diogo Cordeiro <diogo@fc.up.pt>
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*/
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public function onStartSubscribe(Profile $profile, Profile $other)
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{
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public function onStartSubscribe(Profile $profile, Profile $other) {
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if (!$profile->isLocal() && $other->isLocal()) {
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return true;
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}
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@ -70,10 +70,10 @@ class apActorFollowersAction extends ManagedAction
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}
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$since = ($page - 1) * PROFILES_PER_MINILIST;
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$limit = (($page - 1) == 0 ? 1 : $page) * PROFILES_PER_MINILIST;
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$limit = PROFILES_PER_MINILIST;
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/* Calculate total items */
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$total_subs = $profile->subscriberCount();
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$total_subs = Activitypub_profile::subscriberCount($profile);
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$total_pages = ceil($total_subs / PROFILES_PER_MINILIST);
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$res = [
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@ -118,15 +118,15 @@ class apActorFollowersAction extends ManagedAction
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{
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/* Fetch Followers */
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try {
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$sub = $profile->getSubscribers($since, $limit);
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$sub = Activitypub_profile::getSubscribers($profile, $since, $limit);
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} catch (NoResultException $e) {
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// Just let the exception go on its merry way
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}
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/* Get followers' URLs */
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$subs = [];
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while ($sub->fetch()) {
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$subs[] = ActivityPubPlugin::actor_uri($sub);
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foreach ($sub as $s) {
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$subs[] = ActivityPubPlugin::actor_uri($s);
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}
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return $subs;
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@ -70,10 +70,10 @@ class apActorFollowingAction extends ManagedAction
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}
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$since = ($page - 1) * PROFILES_PER_MINILIST;
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$limit = (($page - 1) == 0 ? 1 : $page) * PROFILES_PER_MINILIST;
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$limit = PROFILES_PER_MINILIST;
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/* Calculate total items */
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$total_subs = $profile->subscriptionCount();
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$total_subs = Activitypub_profile::subscriptionCount($profile);
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$total_pages = ceil($total_subs / PROFILES_PER_MINILIST);
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$res = [
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@ -118,16 +118,17 @@ class apActorFollowingAction extends ManagedAction
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{
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/* Fetch Following */
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try {
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$sub = $profile->getSubscribed($since, $limit);
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$sub = Activitypub_profile::getSubscribed($profile, $since, $limit);
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} catch (NoResultException $e) {
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// Just let the exception go on its merry way
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}
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/* Get followed' URLs */
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$subs = [];
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while ($sub->fetch()) {
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$subs[] = ActivityPubPlugin::actor_uri($sub);
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foreach ($sub as $s) {
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$subs[] = ActivityPubPlugin::actor_uri($s);
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}
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return $subs;
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}
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}
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@ -78,6 +78,7 @@ class Activitypub_follow extends Managed_DataObject
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if (!Subscription::exists($actor_profile, $object_profile)) {
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Subscription::start($actor_profile, $object_profile);
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Activitypub_profile::subscribeCacheUpdate($actor_profile, $object_profile);
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common_debug('ActivityPubPlugin: Accepted Follow request from '.ActivityPubPlugin::actor_uri($actor_profile).' to '.$object);
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} else {
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common_debug('ActivityPubPlugin: Received a repeated Follow request from '.ActivityPubPlugin::actor_uri($actor_profile).' to '.$object);
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@ -85,7 +86,7 @@ class Activitypub_follow extends Managed_DataObject
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// Notify remote instance that we have accepted their request
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common_debug('ActivityPubPlugin: Notifying remote instance that we have accepted their Follow request request from '.ActivityPubPlugin::actor_uri($actor_profile).' to '.$object);
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$postman = new Activitypub_postman($actor_profile, [$actor_aprofile]);
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$postman = new Activitypub_postman($object_profile, [$actor_aprofile]);
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$postman->accept_follow();
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}
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}
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@ -473,4 +473,196 @@ class Activitypub_profile extends Managed_DataObject
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return $profile;
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}
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/**
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* Getter for the number of subscribers of a
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* given local profile
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*
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* @param Profile $profile profile object
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* @return int number of subscribers
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* @author Bruno Casteleiro <brunoccast@fc.up.pt>
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*/
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public static function subscriberCount(Profile $profile): int {
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$cnt = self::cacheGet(sprintf('activitypub_profile:subscriberCount:%d', $profile->id));
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if ($cnt !== false && is_int($cnt)) {
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return $cnt;
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}
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$sub = new Subscription();
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$sub->subscribed = $profile->id;
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$sub->joinAdd(['subscriber', 'user:id'], 'LEFT');
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$sub->joinAdd(['subscriber', 'activitypub_profile:profile_id'], 'LEFT');
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$sub->whereAdd('subscriber != subscribed');
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$cnt = $sub->count('distinct subscriber');
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self::cacheSet(sprintf('activitypub_profile:subscriberCount:%d', $profile->id), $cnt);
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return $cnt;
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}
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/**
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* Getter for the number of subscriptions of a
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* given local profile
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*
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* @param Profile $profile profile object
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* @return int number of subscriptions
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* @author Bruno Casteleiro <brunoccast@fc.up.pt>
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*/
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public static function subscriptionCount(Profile $profile): int {
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$cnt = self::cacheGet(sprintf('activitypub_profile:subscriptionCount:%d', $profile->id));
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if ($cnt !== false && is_int($cnt)) {
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return $cnt;
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}
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$sub = new Subscription();
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$sub->subscriber = $profile->id;
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$sub->joinAdd(['subscribed', 'user:id'], 'LEFT');
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$sub->joinAdd(['subscribed', 'activitypub_profile:profile_id'], 'LEFT');
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$sub->whereAdd('subscriber != subscribed');
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$cnt = $sub->count('distinct subscribed');
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self::cacheSet(sprintf('activitypub_profile:subscriptionCount:%d', $profile->id), $cnt);
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return $cnt;
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}
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public static function updateSubscriberCount(Profile $profile, $adder) {
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$cnt = self::cacheGet(sprintf('activitypub_profile:subscriberCount:%d', $profile->id));
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if ($cnt !== false && is_int($cnt)) {
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self::cacheSet(sprintf('activitypub_profile:subscriberCount:%d', $profile->id), $cnt+$adder);
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}
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}
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public static function updateSubscriptionCount(Profile $profile, $adder) {
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$cnt = self::cacheGet(sprintf('activitypub_profile:subscriptionCount:%d', $profile->id));
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if ($cnt !== false && is_int($cnt)) {
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self::cacheSet(sprintf('activitypub_profile:subscriptionCount:%d', $profile->id), $cnt+$adder);
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}
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}
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/**
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* Getter for the subscriber profiles of a
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* given local profile
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*
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* @param Profile $profile profile object
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* @param int $offset index of the starting row to fetch from
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* @param int $limit maximum number of rows allowed for fetching
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* @return array subscriber profile objects
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* @author Bruno Casteleiro <brunoccast@fc.up.pt>
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*/
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public static function getSubscribers(Profile $profile, $offset = 0, $limit = null): array {
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$cache = false;
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if ($offset + $limit <= Subscription::CACHE_WINDOW) {
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$subs = self::cacheGet(sprintf('activitypub_profile:subscriberCollection:%d', $profile->id));
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if ($subs !== false && is_array($subs)) {
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return array_slice($subs, $offset, $limit);
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}
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$cache = true;
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}
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$subs = Subscription::getSubscriberIDs($profile->id, $offset, $limit);
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try {
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$profiles = [];
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$users = User::multiGet('id', $subs);
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foreach ($users->fetchAll() as $user) {
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$profiles[$user->id] = $user->getProfile();
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}
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$ap_profiles = Activitypub_profile::multiGet('profile_id', $subs);
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foreach ($ap_profiles->fetchAll() as $ap) {
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$profiles[$ap->getID()] = $ap->local_profile();
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}
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} catch (NoResultException $e) {
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return $e->obj;
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}
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if ($cache) {
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self::cacheSet(sprintf('activitypub_profile:subscriberCollection:%d', $profile->id), $profiles);
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}
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return $profiles;
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}
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/**
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* Getter for the subscribed profiles of a
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* given local profile
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*
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* @param Profile $profile profile object
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* @param int $offset index of the starting row to fetch from
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* @param int $limit maximum number of rows allowed for fetching
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* @return array subscribed profile objects
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* @author Bruno Casteleiro <brunoccast@fc.up.pt>
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*/
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public static function getSubscribed(Profile $profile, $offset = 0, $limit = null): array {
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$cache = false;
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if ($offset + $limit <= Subscription::CACHE_WINDOW) {
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$subs = self::cacheGet(sprintf('activitypub_profile:subscribedCollection:%d', $profile->id));
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if (is_array($subs)) {
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return array_slice($subs, $offset, $limit);
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}
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$cache = true;
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}
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$subs = Subscription::getSubscribedIDs($profile->id, $offset, $limit);
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try {
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$profiles = [];
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$users = User::multiGet('id', $subs);
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foreach ($users->fetchAll() as $user) {
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$profiles[$user->id] = $user->getProfile();
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}
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$ap_profiles = Activitypub_profile::multiGet('profile_id', $subs);
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foreach ($ap_profiles->fetchAll() as $ap) {
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$profiles[$ap->getID()] = $ap->local_profile();
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}
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} catch (NoResultException $e) {
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return $e->obj;
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}
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if ($cache) {
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self::cacheSet(sprintf('activitypub_profile:subscribedCollection:%d', $profile->id), $profiles);
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}
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return $profiles;
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}
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/**
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* Update cached values that are relevant to
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* the users involved in a subscription
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*
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* @param Profile $actor subscriber profile object
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* @param Profile $other subscribed profile object
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* @return void
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* @author Bruno Casteleiro <brunoccast@fc.up.pt>
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*/
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public static function subscribeCacheUpdate(Profile $actor, Profile $other) {
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self::blow('activitypub_profile:subscribedCollection:%d', $actor->getID());
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self::blow('activitypub_profile:subscriberCollection:%d', $other->id);
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self::updateSubscriptionCount($actor, +1);
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self::updateSubscriberCount($other, +1);
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}
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/**
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* Update cached values that are relevant to
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* the users involved in an unsubscription
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*
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* @param Profile $actor subscriber profile object
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* @param Profile $other subscribed profile object
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* @return void
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* @author Bruno Casteleiro <brunoccast@fc.up.pt>
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*/
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public static function unsubscribeCacheUpdate(Profile $actor, Profile $other) {
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self::blow('activitypub_profile:subscribedCollection:%d', $actor->getID());
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self::blow('activitypub_profile:subscriberCollection:%d', $other->id);
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self::updateSubscriptionCount($actor, -1);
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self::updateSubscriberCount($other, -1);
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}
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}
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@ -75,6 +75,7 @@ class Activitypub_rsa extends Managed_DataObject
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if ($profile->isLocal()) {
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self::generate_keys($this->private_key, $this->public_key);
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$this->store_keys();
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$apRSA->private_key = $this->private_key;
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} else {
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throw new Exception('This is a remote Profile, there is no Private Key for this Profile.');
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}
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@ -100,6 +101,7 @@ class Activitypub_rsa extends Managed_DataObject
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if ($profile->isLocal()) {
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self::generate_keys($this->private_key, $this->public_key);
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$this->store_keys();
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$apRSA->public_key = $this->public_key;
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} else {
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// This should never happen, but try to recover!
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if ($fetch) {
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@ -175,10 +175,14 @@ class Activitypub_inbox_handler
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private function handle_accept_follow($actor, $object)
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{
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// Get valid Object profile
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// Note that, since this an accept_follow, the $object
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// profile is actually the actor that followed someone
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$object_profile = new Activitypub_explorer;
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$object_profile = $object_profile->lookup($object['object'])[0];
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$pending_list = new Activitypub_pending_follow_requests($actor->getID(), $object_profile->getID());
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Activitypub_profile::subscribeCacheUpdate($object_profile, $actor);
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$pending_list = new Activitypub_pending_follow_requests($object_profile->getID(), $actor->getID());
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$pending_list->remove();
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}
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@ -302,7 +306,8 @@ class Activitypub_inbox_handler
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if (Subscription::exists($actor, $object_profile)) {
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Subscription::cancel($actor, $object_profile);
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// You are no longer following this person.
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// You are no longer following this person.
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Activitypub_profile::unsubscribeCacheUpdate($actor, $object_profile);
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} else {
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// 409: You are not following this person already.
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}
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@ -61,7 +61,7 @@ class Activitypub_postman
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$followers = apActorFollowersAction::generate_followers($this->actor, 0, null);
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foreach ($followers as $sub) {
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try {
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$to[]= Activitypub_profile::from_profile($discovery->lookup($sub)[0]);
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$this->to[]= Activitypub_profile::from_profile($discovery->lookup($sub)[0]);
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} catch (Exception $e) {
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// Not an ActivityPub Remote Follower, let it go
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}
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@ -157,6 +157,7 @@ class Activitypub_postman
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$res_body = json_decode($res->getBody());
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if ($res->getStatus() == 200 || $res->getStatus() == 202 || $res->getStatus() == 409) {
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Activitypub_profile::unsubscribeCacheUpdate($this->actor, $this->to[0]->local_profile());
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$pending_list = new Activitypub_pending_follow_requests($this->actor->getID(), $this->to[0]->getID());
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$pending_list->remove();
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return true;
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@ -191,7 +192,7 @@ class Activitypub_postman
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$res_body = json_decode($res->getBody());
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if ($res->getStatus() == 200 || $res->getStatus() == 202 || $res->getStatus() == 409) {
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$pending_list = new Activitypub_pending_follow_requests($this->actor->getID(), $this->to[0]->getID());
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$pending_list = new Activitypub_pending_follow_requests($this->to[0]->getID(), $this->actor->getID());
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$pending_list->remove();
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return true;
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}
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