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- <?php
- defined('GNUSOCIAL') || die();
- class Subscription extends Managed_DataObject
- {
- const CACHE_WINDOW = 201;
- const FORCE = true;
- public $__table = 'subscription';
- public $subscriber;
- public $subscribed;
- public $jabber;
- public $sms;
- public $token;
- public $secret;
- public $uri;
- public $created;
- public $modified;
- public static function schemaDef()
- {
- return array(
- 'fields' => array(
- 'subscriber' => array('type' => 'int', 'not null' => true, 'description' => 'profile listening'),
- 'subscribed' => array('type' => 'int', 'not null' => true, 'description' => 'profile being listened to'),
- 'jabber' => array('type' => 'bool', 'default' => true, 'description' => 'deliver jabber messages'),
- 'sms' => array('type' => 'bool', 'default' => true, 'description' => 'deliver sms messages'),
- 'token' => array('type' => 'varchar', 'length' => 191, 'description' => 'authorization token'),
- 'secret' => array('type' => 'varchar', 'length' => 191, 'description' => 'token secret'),
- 'uri' => array('type' => 'varchar', 'length' => 191, 'description' => 'universally unique identifier'),
- 'created' => array('type' => 'datetime', 'description' => 'date this record was created'),
- 'modified' => array('type' => 'timestamp', 'not null' => true, 'description' => 'date this record was modified'),
- ),
- 'primary key' => array('subscriber', 'subscribed'),
- 'unique keys' => array(
- 'subscription_uri_key' => array('uri'),
- ),
- 'indexes' => array(
- 'subscription_subscriber_created_subscribed_idx' => array('subscriber', 'created', 'subscribed'),
- 'subscription_subscribed_created_subscriber_idx' => array('subscribed', 'created', 'subscriber'),
- 'subscription_token_idx' => array('token'),
- ),
- );
- }
-
- public static function start(Profile $subscriber, Profile $other, $force = false)
- {
- if (!$subscriber->hasRight(Right::SUBSCRIBE)) {
-
- throw new Exception(_('You have been banned from subscribing.'));
- }
- if (self::exists($subscriber, $other)) {
-
- throw new AlreadyFulfilledException(_('Already subscribed!'));
- }
- if ($other->hasBlocked($subscriber)) {
-
- throw new Exception(_('User has blocked you.'));
- }
- if (Event::handle('StartSubscribe', array($subscriber, $other))) {
-
- if (!$force && $other->requiresSubscriptionApproval($subscriber)) {
- try {
- $sub = Subscription_queue::saveNew($subscriber, $other);
- $sub->notify();
- } catch (AlreadyFulfilledException $e) {
- $sub = Subscription_queue::getSubQueue($subscriber, $other);
- }
- } else {
- $otherUser = User::getKV('id', $other->id);
- $sub = self::saveNew($subscriber, $other);
- $sub->notify();
- self::blow('user:notices_with_friends:%d', $subscriber->id);
- self::blow('subscription:by-subscriber:'.$subscriber->id);
- self::blow('subscription:by-subscribed:'.$other->id);
- $subscriber->blowSubscriptionCount();
- $other->blowSubscriberCount();
- if ($otherUser instanceof User &&
- $otherUser->autosubscribe &&
- !self::exists($other, $subscriber) &&
- !$subscriber->hasBlocked($other)) {
- try {
- self::start($other, $subscriber);
- } catch (AlreadyFulfilledException $e) {
-
- common_debug('Tried to autosubscribe a user to its new subscriber.');
- } catch (Exception $e) {
- common_log(LOG_ERR, "Exception during autosubscribe of {$other->nickname} to profile {$subscriber->id}: {$e->getMessage()}");
- }
- }
- }
- if ($sub instanceof Subscription) {
- Event::handle('EndSubscribe', array($subscriber, $other));
- }
- }
- return $sub;
- }
- public static function ensureStart(Profile $subscriber, Profile $other, $force = false)
- {
- try {
- $sub = self::start($subscriber, $other, $force);
- } catch (AlreadyFulfilledException $e) {
- return self::getSubscription($subscriber, $other);
- }
- return $sub;
- }
-
- protected static function saveNew(Profile $subscriber, Profile $other)
- {
- $sub = new Subscription();
- $sub->subscriber = $subscriber->getID();
- $sub->subscribed = $other->getID();
- $sub->jabber = true;
- $sub->sms = true;
- $sub->created = common_sql_now();
- $sub->uri = self::newUri(
- $subscriber,
- $other,
- $sub->created
- );
- $result = $sub->insert();
- if ($result===false) {
- common_log_db_error($sub, 'INSERT', __FILE__);
-
- throw new Exception(_('Could not save subscription.'));
- }
- return $sub;
- }
- public function notify()
- {
-
-
-
- $this->notifyEmail();
- }
- public function notifyEmail()
- {
- $subscribedUser = User::getKV('id', $this->subscribed);
- if ($subscribedUser instanceof User) {
- $subscriber = Profile::getKV('id', $this->subscriber);
- mail_subscribe_notify_profile($subscribedUser, $subscriber);
- }
- }
-
- public static function cancel(Profile $subscriber, Profile $other)
- {
- if (!self::exists($subscriber, $other)) {
-
- throw new AlreadyFulfilledException(_('Not subscribed!'));
- }
-
- if ($subscriber->id == $other->id) {
-
- throw new Exception(_('Could not delete self-subscription.'));
- }
- if (Event::handle('StartUnsubscribe', array($subscriber, $other))) {
- $sub = Subscription::pkeyGet(array('subscriber' => $subscriber->id,
- 'subscribed' => $other->id));
-
- assert(!empty($sub));
- $result = $sub->delete();
- if (!$result) {
- common_log_db_error($sub, 'DELETE', __FILE__);
-
- throw new Exception(_('Could not delete subscription.'));
- }
- self::blow('user:notices_with_friends:%d', $subscriber->id);
- self::blow('subscription:by-subscriber:'.$subscriber->id);
- self::blow('subscription:by-subscribed:'.$other->id);
- $subscriber->blowSubscriptionCount();
- $other->blowSubscriberCount();
- Event::handle('EndUnsubscribe', array($subscriber, $other));
- }
- return;
- }
- public static function exists(Profile $subscriber, Profile $other)
- {
- try {
- $sub = self::getSubscription($subscriber, $other);
- } catch (NoResultException $e) {
- return false;
- }
- return true;
- }
- public static function getSubscription(Profile $subscriber, Profile $other)
- {
-
- $sub = new Subscription();
- $sub->subscriber = $subscriber->id;
- $sub->subscribed = $other->id;
- if (!$sub->find(true)) {
- throw new NoResultException($sub);
- }
- return $sub;
- }
- public function getSubscriber()
- {
- return Profile::getByID($this->subscriber);
- }
- public function getSubscribed()
- {
- return Profile::getByID($this->subscribed);
- }
- public function asActivity()
- {
- $subscriber = $this->getSubscriber();
- $subscribed = $this->getSubscribed();
- $act = new Activity();
- $act->verb = ActivityVerb::FOLLOW;
-
- $act->id = $this->getUri();
- $act->time = strtotime($this->created);
-
- $act->title = _m('TITLE', 'Follow');
-
-
- $act->content = sprintf(
- _('%1$s is now following %2$s.'),
- $subscriber->getBestName(),
- $subscribed->getBestName()
- );
- $act->actor = $subscriber->asActivityObject();
- $act->objects[] = $subscribed->asActivityObject();
- $url = common_local_url(
- 'AtomPubShowSubscription',
- [
- 'subscriber' => $subscriber->id,
- 'subscribed' => $subscribed->id,
- ]
- );
- $act->selfLink = $url;
- $act->editLink = $url;
- return $act;
- }
-
- public static function bySubscriber($profile_id, $offset = 0, $limit = PROFILES_PER_PAGE)
- {
-
- $ids = self::getSubscribedIDs($profile_id, $offset, $limit);
- return Subscription::listFind('subscribed', $ids);
- }
-
- public static function bySubscribed($profile_id, $offset = 0, $limit = PROFILES_PER_PAGE)
- {
-
- $ids = self::getSubscriberIDs($profile_id, $offset, $limit);
- return Subscription::listFind('subscriber', $ids);
- }
-
-
- public static function getSubscribedIDs($profile_id, $offset, $limit)
- {
- return self::getSubscriptionIDs('subscribed', $profile_id, $offset, $limit);
- }
- public static function getSubscriberIDs($profile_id, $offset, $limit)
- {
- return self::getSubscriptionIDs('subscriber', $profile_id, $offset, $limit);
- }
- private static function getSubscriptionIDs($get_type, $profile_id, $offset, $limit)
- {
- switch ($get_type) {
- case 'subscribed':
- $by_type = 'subscriber';
- break;
- case 'subscriber':
- $by_type = 'subscribed';
- break;
- default:
- throw new Exception('Bad type argument to getSubscriptionIDs');
- }
- $cacheKey = 'subscription:by-'.$by_type.':'.$profile_id;
- $queryoffset = $offset;
- $querylimit = $limit;
- if ($offset + $limit <= self::CACHE_WINDOW) {
-
- $ids = self::cacheGet($cacheKey);
- if (is_array($ids)) {
- return array_slice($ids, $offset, $limit);
- }
-
-
- $queryoffset = 0;
- $querylimit = self::CACHE_WINDOW;
- }
- $sub = new Subscription();
- $sub->$by_type = $profile_id;
- $sub->selectAdd($get_type);
- $sub->whereAdd($get_type . ' <> ' . $profile_id);
- $sub->orderBy("created DESC, {$get_type} DESC");
- $sub->limit($queryoffset, $querylimit);
- if (!$sub->find()) {
- return array();
- }
- $ids = $sub->fetchAll($get_type);
-
- if ($queryoffset === 0 && $querylimit === self::CACHE_WINDOW) {
- self::cacheSet($cacheKey, $ids);
- return array_slice($ids, $offset, $limit);
- }
- return $ids;
- }
-
- public function update($dataObject = false)
- {
- self::blow('subscription:by-subscriber:'.$this->subscriber);
- self::blow('subscription:by-subscribed:'.$this->subscribed);
- return parent::update($dataObject);
- }
- public function getUri()
- {
- return $this->uri ?: self::newUri($this->getSubscriber(), $this->getSubscribed(), $this->created);
- }
- }
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